Kraftwerkzeug

Kraftwerkzeug, umfassend: einen Handgriffteil und ein Gehäuse; ein vor dem Gehäuse angeordnetes Spannfutter, wobei das Spannfutter selektiv entweder in einer Arbeits-Betriebsart oder in einer Spann-Betriebsart betrieben wird und wobei das Kraftwerkzeug weiter eine Antriebsvorrichtung umfasst, die das Spannfutter antreibt, sich axial zwischen einer ersten, der Arbeits-Betriebsart entsprechenden Stellung und einer zweiten, der Spann-Betriebsart entsprechenden Stellung zu bewegen.

Rotary tool holder assemblies

Chuck

A chuck 1 for use with a rotary power tool is described. The chuck 1 comprises a metallic body member 2 having three angularly spaced bores 3 separated from one another by approximately 120{. Three jaw members 4 are adapted to be inserted into the respective bores 3 such that they can slide back and forth in the bores and project from the front of the body member 2. A split ring 5 fits into an annular indentation 6 formed on the body member 2. When the split ring 5 is in position around body member 2, an inner threaded portion 7 of the split ring 5 engages a corresponding threaded portion 8 formed on the edges of jaw members 4, so that rotation of the split ring around the body member 2 causes displacement of the jaw members 4 in their respective bores 3 to move their distal ends closer together or further apart. A front sleeve 9 is provided with flat portions for engaging flat portions on the split ring 5 so that the split ring 5 rotates with the front sleeve 9. The front sleeve 9 is also ...

Chuck

Rotary tool holder assemblies

A rotary tool holder assembly (2) having a tool receiving bore 34 and a gripping means, the gripping means comprising at least one tool gripping arm 32 mounted on the outer rim support 31 and is movable relative to the rim between a gripping position, in which off centre sprag forces can act on a carried tool, and a release position. The gripping means also comprises at least one wedge portion 41 arranged to act on the gripping arm and for axial movement relative to the outer rim support. Axial movement of the wedge portion in the first direction moves the gripping arm towards the gripping position. The gripping means also comprises biasing means 5 for biasing said wedge portion towards the first direction. A movable mass portion may also be included, arranged to move under action of centrifugal forces and so move the gripping arm into a gripping position.

TOOL HOLDER AND PROCEDURE FOR THE ASSEMBLY WITH SIMPLE DISASSEMBLY.

DRILL CHUCK FOR MACHINE TOOL

DRILL CHUCKS

NAIL SCREW DRIVING TOOL HEAD

Gewindeschneidkluppe.

Schnellspannfutter.

Spannbackenfutter mit zwei in axialer Richtung hintereinander liegenden Spannstellen.

Spannfutter

Werkzeugkopf

Führungseinrichtung für Gewindeschneidkluppen

КРІПИЛЬНИЙ ПРИСТРІЙ З ПАТРОНОМ І ПРИСТОСОВАНИМ ДО ЗНІМНОГО ПРИКРІПЛЮВАННЯ ДО НЬОГО ПРИСТРОЄМ-СУПУТНИКОМ

Кріпильний пристрій, який містить патронний елемент і пристосований до знімного прикріплювання до нього пристрій-супутник. Патронний елемент має чотири центрувальні канавки, розташовані з кутовим інтервалом між ними 90° навколо центральної Z-oci, a пристрій-супутник має чотири відповідним чином розташовані центрувальні виступи. В кожній з цих чотирьох центрувальних канавок одна зі стінок служить для центрування відповідного центрувального виступу пристрою-супутника, в той час, як інша стінка канавки утворена замикальним елементом. Після прикріплення пристрою-супутника до патронного елемента відповідний замикальний елемент зчіплюється із заглибиною, передбаченою на центрувальному виступі, і затягує останній в Z-напрямку в центрувальну канавку патронного елемента. Водночас замикальний елемент також притискає центрувальний виступ до іншої стінки канавки. Внаслідок цього пристрій-супутник встановлюється точно в заданому положенні відносно патронного елемента по Х-, Y- і Z-осях і прикріплюється ...

Multiple jaw precision chuck - has cage enclosing jaws together forming variable prismatic chamber controlled by screw

DRILL CHUCKS

TETE MULTIBROCHES POUR MACHINE-OUTIL, NOTAMMENT POUR ENSEMBLE D'USINAGE A TETES INTERCHANGEABLES

TETE MULTIBROCHES D'AXE CENTRAL Y, DU TYPE ADAPTABLE A TOUTE MACHINE-OUTIL COMPORTANT AU MOINS UN ELEMENT DE MISE EN ROTATION, UN DISPOSITIF DE BRIDAGE ET DE LOCALISATION, ET EVENTUELLEMENT DES SYSTEMES D'AMENEE, D'EVACUATION ET DE CHANGEMENT D'OUTILS DESTINES A CETTE TETE MULTIBROCHES. SUIVANT L'INVENTION, ELLE COMPREND, PORTEE PAR UNE PLAQUE D'ADAPTATION 3: UN CARTER AVANT 5, 6 DANS LEQUEL SONT MONTES AU MOINS DEUX BOITIERS PORTE-BROCHE 19 D'AXES X ENTRAINES SIMULTANEMENT EN MOUVEMENT PAR UN DISPOSITIF DE COMMANDE 8, 9, 20, 21; 8, 34, 33, 20; 8, 43, 39, 38, 37, 35, 19; 45, 44, 39, 38, 37, 35,19; 63-68; ET UN CARTER ARRIERE 4 PAR RAPPORT AUQUEL TOURNE AXIALEMENT AUTOUR DE L'AXE Y, LE CARTER AVANT 5, 6 PAR L'INTERMEDIAIRE D'UNE COURONNE D'ORIENTATION 22 ET D'UNE PREMIERE CINEMATIQUE 23, 24; 29, 30, ET DANS LEQUEL UNE SECONDE CINEMATIQUE 14, 15, 16; 14, 47, 46; 14, 15, 47, 46 COMMANDE LA ROTATION DES BROCHES 17. APPPLICATION: NOTAMMENT A UN ENSEMBLE D'USINAGE A TETES INTERCHANGEABLES ET ...

Rotating chuck for tools to turn or bore

Device of guidance or tightening for whole of threading

DRILL CHUCKS

CHUCKS DRILL HOLDERS

Jaw chuck of tightening with two axially shifted stations of tightening

Clamping Apparatus with a Chuck and a Pallet Releasably Attachable Thereto

CLAMPING DEVICE FOR CLAMPING AN ARTICLE, BALANCING ADAPTER FOR A BALANCING DEVICE, BALANCING DEVICE AND CLAMPING DEVICE SET

A clamping device for clamping an article or workpiece to be balanced includes a clamping apparatus for clamping the article. The clamping apparatus has an adjusting device for adjusting the clamping diameter of a clamping body of the clamping apparatus for clamping the article on a placement surface. The clamping body has a disk-shaped spring element sprung in radial direction with a centrally disposed clearance forming at least one spring element cone. The clamping body also has a clamping element inserted into the clearance and having at least one corresponding clamping element cone. The adjusting device has an actuating device for displacing the clamping element relative to the spring element, for moving the cone surfaces of the clamping element cone and the spring element cone relative to one another and for consequently clamping and/or unclamping the spring element in radial direction by the cone surfaces.

Air chuck provided with locking mechanism

A chuck mechanism operates a piston in a cylinder tube by using action of compressed air and opens and closes, by using a rod coupled to the piston, a pair of fingers, thereby gripping work W. The locking mechanism locks the fingers at work grip positions. The locking mechanism includes a first locking member, a second locking member, and a drive device. The first locking member is displaced when the pair of fingers are opened or closed. The second locking member retains the first locking member so as to lock the fingers at the work grip positions. The drive device relatively displaces the first locking member and the second locking member to locking positions and non-locking positions.

Method and device for centering and clamping a workpiece in a balancing machine

Das Verfahren umfasst die Schritte Positionieren eines Werkstücks (50) mit einer Zentrierfläche (51) auf einem Zentrierspannkörper (32) eines Spannfutters (1), Andrücken einer radialen Anlagefläche des Werkstücks an eine Spannfläche (27) des Spannfutters (1) mit einer ersten Kraft, Zentrieren des Werkstücks (50) durch Spannen des Zentrierspannkörpers (32) gegen die Zentrierfläche (51), Andrücken des Werkstücks (50) mit der radialen Anlagefläche (52) an die Spannfläche (27) des Spannfutters (1) mit einer zweiten Kraft, wobei die zweite Kraft größer ist als die erste Kraft. Das Spannfutter umfasst einen Zentrierspannkörper (32), dessen Durchmesser veränderbar ist, eine dem Zentrierspannkörper (32) benachbarte, sich radial erstreckende Spannfläche (27), ein bewegbares Spannelement (18), ein erstes Federelement (43), durch das der Zentrierspannkörper in eine Spannstellung bewegbar ist, ein zweites Federelement (21), durch welches das Spannelement (18) mit einer ersten Kraft beaufschlagbar ist ...

Устройство для зажима

Изобретение относится к металдо- о&работке и может быть использов и при зажиме пруткового материала в токарных станках. Цель изобретения расширение технологических возможностей за счет увеличения диапазона размеров зажимаемых заготовок. В многогранном отверстии корпуса 5 установлены многогранные нажимные призмы 1, соединенные с втулкой 2 гантелями 3. Нажимные призмы 1 контактируют с многогранными зажимными 7. При перемещении втулки 2 наклонные плоскости нажимных призм 1 взаимодействуют с ответными поверхностями зажимных призм 7, заставляя их перемещаться радиально, зажимая заготовку. При возвратном перемещении втулки 2 происходит разжим заготовки. 5 ил.

Improvements in or relating to carpenters' and like braces

... 402,536. Chucks. MELDRUM, M., 81, Roe Lane, Pitsmoor, Sheffield. July 26, 1932, Nos. 21033 and 21985. [Class 83 (iii).] In a chuck for a carpenter's &c. brace, the jaws 17 are attached to springs 18 secured to a carrier block 16 which is of rectangular or other non-circular section and is received within a slot 15 of the brace 12. A recess 20 is provided in the block 16 of a cross-section to fit the tang of the tool being held so as to drive and centre the tool, and a projection 22 on the block centres it within the brace 12. If the block 16 is rectangular in section the springs 18 on the shorter sides of the block are bowed outwards as shown whilst the remaining springs are straight so as to make the jaws concentric with the chuck. Two jaws only may be provided, or three jaws secured to a triangular block. The springs 18 are attached to the jaws and block by rivets 19 and may be recessed into slots in the sides of the block or in the slot 15. When two jaws only are provided they may have ...

Parallel-gripper device

An opening/closing operation of a pair of jaw components 5 is linearly guided by a single guide block 6 attached to the chuck body 1. The guide block 6 comprises the block body 7, a pair of guide walls 8 formed integrally on a first face of the block body 7, and one or two attaching walls 9 formed integrally on a second face of the block body.

TWO JAW CHUCK

... 1308663 Chucks C R GORTON 24 Sept 1970 12363/70 Heading B3B A two jaw chuck, e.g. for holding tapered square shank carpenters drills, comprises an outer rotatable casing 3 that has an internally threaded aperture leading into an internal conical cavity as a means of retaining and operating a pair of grip jaws 2, an externally threaded inner body 1 on which the outer rotatable casing 2 is threaded, the inner body being slotted at one end to receive the said jaws, and a pair of grip jaws 2 that are connected at their inner ends by a "U" shape spring 6 as a means of opening them, the chuck being characterised in that the inner body at its end opposite to the slot contains a threaded aperture 5 to enable it to be attached to a drive spindle of a stationary or portable machine.

ADJUSTABLE GRIPPING DEVICE

TOOLHOLDER AND METHOD OF RELEASABLY MOUNTING

NAIL SCREW DRIVING TOOL HEAD

CLAMPING APPARATUS WITH A CHUCK AND A PALLET RELEASABLY ATTACHABLE THERETO

The clamping apparatus comprises a chuck member and a pallet releasably attachable thereto. The chuck member has four centering grooves, arranged offset to each other by 90.degree. around the central Z-axis, while the pallet has four correspondingly located centering pins. In each of the four centering grooves, one of the groove flanks serves for centering the associated centering pin of the pallet, while the other groove flank is constituted by a clamping member. Upon clamping the pallet to the chuck member, the associated clamping member engages a recess provided on the centering pin and pulls the latter one in Z-direction into the centering groove of the chuck member. Simultaneously, the clamping member also presses the centering pin against the other groove flank. Thereby, the pallet is positioned relative to the chuck member in X-, Y- and Z- directions and clamped to the chuck member.

HEAD MULTIPIN FOR MACHINE TOOL, IN PARTICULAR AS a WHOLE Of MACHINING HAS INTERCHANGEABLE HEADS

Drill Holder

Multi-spindle head for a machine tool, especially for a machining assembly with interchangeable heads

PTO SELECTOR MECHANISM WITH BRAKE

A power driver includes a housing (95), a tool chuck (50), a cover (5), and a power take off mechanism comprising a PTO actuator shaft (40) biased axially forward by a spring (44) and fixedly supporting a PTO drive disk (41), and a thrust plate (12) supporting a thrust bearing (13) that abuts a first driven gear (82) mounted for movement on an input shaft (60), which is in turn mounted for rotation on the housing. The PTO actuator shaft is rotationally fixed to a chuck actuating shaft (64). The power take off mechanism is adjustable using a mode ring (45) into a DRILL/DRIVE MODE to rotationally drive the input shaft and the chuck actuating shaft together as a unit. Here, a brake (84) resists relative rotation between the input shaft and the chuck actuating shaft. The power take off mechanism is adjustable into a CHUCK MODE in which the first driven gear, biased axially forward by a spring (99), and a second driven gear (86) rotationally drive the chuck actuating shaft relative to the input ...

CHUCK.

МЕХАНИЗМ СЦЕПЛЕНИЯ, ЗАЖИМНОЙ ПАТРОН, ПРИВОДНОЙ ИНСТРУМЕНТ И СПОСОБ ДВУНАПРАВЛЕННОГО ВРАЩЕНИЯ ЗАЖИМНОГО ПАТРОНА

Раскрыты механизм сцепления, зажимной патрон, приводной инструмент и способ двунаправленного вращения зажимного патрона. Механизм сцепления содержит возвратный упругий элемент (216), блок трансмиссии и поворотную часть (203). При этом блок трансмиссии содержит по меньшей мере два элемента зацепления, которые расположены напротив друг друга; причем зацепление между двумя элементами зацепления обеспечивает синхронное вращение переднего корпуса (101) и заднего корпуса (100). При этом поворот поворотной части (203) в первом направлении вызывает сжатие возвратного упругого элемента (216) для выведения двух элементов зацепления из зацепления между собой, а поворот поворотной части (203) во втором направлении вызывает возврат сжатого возвратного упругого элемента (216) в исходное положение для введения двух элементов зацепления в зацепление друг с другом. Зажимной патрон содержит передний корпус (101), задний корпус (100), зажимную губку (102) и механизм сцепления, а приводной инструмент содержит ...

Патрон самоцентрирующий

Spannfutter

Centring and clamping device

Four-jaw square clamp for self-centring clamping of round, four-edged and eight-edged parts of different size. The self-centring action is achieved by the fact that the four clamping jaws, each offset by 90 DEG with respect to one another, perform with their 90 DEG tips a simultaneous, mutually dependent movement with respect to the mid-point and thus form a continuously adjustable square of varying size. The centred holding of the part to be clamped is thus unnecessary. This advantage can be used in clamping technology, in particular in the case of automated clamping processes of round, but also four-edged and eight-edged parts. In the attached drawing, an exemplary embodiment is illustrated. ...

Improvements in or relating to bit-holding chucks

... 199,980. Janin, J. V., and Karatofsky, R. H. Aug. 17,1922, Chucks; hand and breast drills.- The jaws 2 of a chuck for hand braces have curved pivotal surfaces 21 engaged by a retaining ring 22. The jaws are arranged in slots in a body, on which screws the usual coneended cap 4, and l1av3 engaging faces 20 concentric with the surfaces 21. The jaws are opened by a spring pin 17 which also engages shoulders 24 on the jaws to limit this movement. The pin 17 is pressed back by a rod passed through a hole 25 when it is desired to remove tie jaws. Drills and cutters.-The tools 3 have flattened ends 30 for drive and if necesary wings 31 to engage the guide hold in the cap.

DRILL CHUCKS

... 1374074 Chucks: jointing by forging G H ROHM 24 Sept 1973 [10 Nov 1972] 44618/73 Headings B3B and B3H A drill chuck having a toothed ring 4 for operating the jaws 3 when turned by a key 6, and which ring 4 is held in a surrounding sleeve 9, is characterized in that the ring 4 is provided with an external sharp-edged shoulder over which one end of the sleeve 9 enages, the said end of the sleeve having been forced radially against the shoulder with a permanent deformation so that the deformed sleeve material abuts against the shoulder (detail II). The sleeve 9 is radially deformed by providing a conical chamfer which extends radially outwardly from the external periphery of the ring 4, and engaging this chamfer with a mating chamfer of a press tool.

TOOL HOLDER FOR DRILLING AND CHISEL TOOLS.

TOOL HOLDER FOR DRILLING AND CHISELLING TOOLS

A tool holder for drilling and chiselling tools includes a receiving sleeve forming a bore with a conically shaped section for receiving a conically shaped shank on a drilling or chiselling tool. Shoulders extending in the axial direction of the sleeve are formed on the surface of the conically shaped section for interengagement with grooves in the drilling or chiselling tool shank so that the sleeve can rotate the tool. Locking elements in the form of axially elongated pins are mounted in the receiving sleeve so that the pins extend transversely of the sleeve axis and tangentially of the conically shaped bore section. The pins are spring biased toward the bore section and are displaceable generally radially relative to the bore. The pins are arranged to seat within an annular groove in the shank of the tool.

DRILL CHUCKS

TITLE: "AN IMPROVEMENT IN OR RELATING TO DRILL CHUCKS". A drill chuck having tapered jaw elements carried by flexible elements, said jaw elements bearing against a tapering nose cone so that they are urged inwards accompanied by flexing of the flexible elements when urged axially relative to the nose cone.

Multiple jaw precision chuck - has cage enclosing jaws together forming variable prismatic chamber controlled by screw

Turn left adjustable

CHUCKBACKLASET

PTO SELECTOR MECHANISM WITH BRAKE

A power driver may include a housing, a tool chuck and a power take off mechanism. The tool chuck may have an input shaft mounted for rotation on the housing. The input shaft may support chuck jaws. A chuck actuating shaft may be mounted for rotation on the input shaft. The power take off mechanism may be connected to the tool chuck. The power take off mechanism may be adjustable into a DRILL/DRIVE MODE to rotationally drive the input shaft and the chuck actuating shaft together as a unit. Here, a brake may resist relative rotation between the input shaft and the chuck actuating shaft. The power take off mechanism may be adjustable into a CHUCK MODE in which a gear mounted on the input shaft may rotationally drive the chuck actuating shaft relative to the input shaft. Here, the brake may be deactivated.

ADJUSTABLE GRIPPING DEVICE

An adjustable gripping device (10) in the nature of an adjustable socket including a body (11) supporting a stem (14) having arcuate guide surfaces (16) along which gripping jaws (19) slide. The gripping jaws (19) include teeth (23) on their outer surfaces and a rotatable adjuster (24) is provided with an internal thread (27) for cooperation with the teeth (23) such that when the adjuster (24) is rotated in opposite direction, the jaws (19) move inwardly and outwardly.

Precision centering device

A precision centering device with a pair of relatively movable plates forming a guideway for four relatively movable guides. A tapered centering port having a rectangular profile is formed by the guides which are constrained for mutual coacting movement by the plates. The relative positions of the movable plates define the geometric shape of the centering port and the relative locations of the guides determine the size of the centering port. A reciprocating collet configured to carry a semiconductor chip is received within the centering port at the center thereof. As the collet moves downwardly, the chip is guided through the tapered port and is centered on the collet.

VARIABLE CHUCK

The invention provides a work chuck which by a single rotary motion may be adjusted to hold in work position any one of a range of different sized tools of a type having a shank portion and a drive portion by which it may be engaged by chuck jaws.

BOHRFUTTER FÜR WERKZEUGMASCHINE

Spannvorrichtung zum Einspannen eines Gegenstands

Die Erfindung betrifft eine Spannvorrichtung zum Einspannen eines Gegenstands, insbesondere eines auszuwuchtenden Werkstücks, mit einer Spanneinrichtung (25) zur Einspannung des Gegenstands, wobei die Spanneinrichtung (25) eine Stelleinrichtung aufweist, mittels der der Spann-durchmesser (d) eines Spannkörpers (27; 138; 155) der Spanneinrichtung (25) verstellbar ist, wobei durch Verstellung des Spanndurchmessers (d) ein, insbesondere auf wenigstens einer Ablagefläche abgelegter, Gegenstand einspannbar ist. Erfindungsgemäß ist vorgesehen, dass der Spannkörper (27; 138; 155) ein scheibenförmiges, in Radialrichtung (r) federndes Federelement (31) mit einer zentral angeordneten Ausnehmung (37) aufweist, die wenigstens einen Federelement-Konus ausbildet, dass der Spannkörper (27; 138; 155) ein in die Ausnehmung (37) des Federelements (31) eingesetztes Spannelement (33) mit wenigstens einem zu dem Federelement-Konus korrespondierenden Spannelement-Konus aufweist, und dass die Stelleinrichtung ...

Druckluftfutter mit Verriegelungsmechanismus

... [Aufgabe] Auch wenn die Zufuhr von Druckluft unterbrochen wird, während ein Werkstück durch ein Paar von Fingern gegriffen wird, soll das Herabfallen des Werkstücks verhindert werden.[Lösung] Ein Spannmechanismus (1) und ein Verriegelungsmechanismus (2) sind vorgesehen. Der Spannmechanismus (1) betätigt einen Kolben (12) in einem Zylinderrohr (11) mithilfe von Druckluft und öffnet unter Verwendung einer Stange (13), die mit dem Kolben (12) gekoppelt ist, ein Paar von Fingern (5, 5), um dadurch das Werkstück W zu greifen. Der Verriegelungsmechanismus (2) verriegelt die Finger (5, 5) an Werkstückgreifpositionen. Der Verriegelungsmechanismus (2) umfasst ein erstes Verriegelungselement (47), ein zweites Verriegelungselement (48) und eine Antriebsvorrichtung (50). Das erste Verriegelungselement (47) wird verschoben, wenn das Paar von Fingern (5, 5) geöffnet oder geschlossen wird. Das zweite Verriegelungselement (48) hält das erste Verriegelungselement (47) so, dass die Finger (5, 5) an den Werkstückgreifpositionen ...

Adjustable aperture apparatus

There is disclosed an iris-type arrangement providing an adjustable diameter aperture, particularly suitable for situations where a gripping arrangement is required. There is described an arrangement comprising a plurality of moveable members defining a polygonal aperture, wherein the aperture is continuously adjustable over a range between a minimum and a maximum aperture, individual members being arranged to move between their maximum and minimum aperture positions with a linear motion, with all the moveable members acting in concert. The arrangement may have a closed or open aperture. ...

End stop

Parallel-gripping chuck

TENSIONING ARRANGEMENT WITH A CHUCK AND SOLVABLE A PALLET FIXABLE TO IT

ADJUSTABLE GRIPPING DEVICE

AMINO ACID REPLACEMENT FOR PEPTIDKONSTRUKTIONEN

Clamping apparatus with a chuck and a pallet releasably attachable thereto

Adjustable gripping device

CHUCK WITH TOOL CENTERING MECHANISM

AMINO ACID SURROGATES FOR PEPTIDIC CONSTRUCTS

Ring-constrained amino acid surrogates of formula I where R1, R2, R3, R4, R5, R6a, R6b, R7, and y are as defined in the specification, methods for synthesizing ring-constrained amino acid surrogates of formula I, methods of use of ring-constrained amino acid surrogates of formula I, including use in linear or cyclic compounds which include a plurality of amino acid residues and one or more ring-constrained amino acid surrogates of formula I and linear or cyclic compounds which include a plurality of amino acid residues and one or more ring-constrained amino acid surrogates of formula I.

DISPOSITIF DE SERRAGE RAPIDE

DISPOSITIF DE SERRAGE RAPIDE. LE DISPOSITIF DE SERRAGE RAPIDE COMPREND UN ELEMENT RECEPTEUR (COLLIER OU MANDRIN) ET DES ELEMENTS DE SERRAGE GUIDES DANS UNE CAGE, ET IL EST CARACTERISE PAR LE FAIT QUE, SUR AU MOINS L'UN DES ELEMENTS DE SERRAGE PRECITES, EST DISPOSE UN LEVIER QUI AGIT DANS LE SENS DU SERRAGE ET PREND APPUI SUR LA CAGE, DE FACON QUE LA FORCE CENTRIFUGE A LAQUELLE EST SOUMISE LE LEVIER EN COURS DE ROTATION AGISSE COMME FORCE DE POUSSEE DANS LE SENS DU SERRAGE. UTILISABLE POUR LE BLOCAGE EN ROTATION D'OUTILS OU DE PIECES D'USINAGE COMPORTANT UNE TIGE OU UN ALESAGE CYLINDRIQUE.

PERFECTIONNEMENTS AUX MECHES A BOIS, TARIERES ET OUTILS ANALOGUES

LA MECHE SUIVANT L'INVENTION EST ESSENTIELLEMENT REMARQUABLE EN CE QU'ELLE COMPORTE, AU-DESSUS DE SA PARTIE DE TRAVAIL 2, UNE TIGE CYLINDRIQUE 1 QUI SE TERMINE PAR UN COURT EMBOUT 3 PRESENTANT UN PROFIL EN TRONC DE PYRAMIDE A SECTION CARREE, NE DETERMINANT AUCUNE SAILLIE PAR RAPPORT A LADITE TIGE. CET EMBOUT 3 VIENT S'ENGAGER DANS LE FOND 12A DES MORS 12 DU MANDRIN EN PERMETTANT L'ENTRAINEMENT DE LA MECHE DONT LE CENTRAGE EST GARANTI PAR L'APPLICATION DE LA PARTIE 12B DES MORS CONTRE LA TIGE 1. INDUSTRIE DE L'OUTILLAGE.

Mandrel tool holder for turning/rotating machine e.g. drilling machine, has gauge including elastic tongue/groove joint that engages with nut to block nut rotation in active position when bore is in extreme open position

Il s'agit d'un mandrin porte-outil pour l'équipement d'une machine tournante du type comprenant un corps (2) destiné à être fixé sur un arbre moteur de la machine, dans lequel sont montés plusieurs mors (11) qui coulissent dans des alésages (10) en convergeant vers l'avant et qui possèdent chacun une partie filetée (12) tournée vers l'extérieur, une chemise (25) étant montée pivotante sur le corps (2) et possédant une paroi intérieure (26) qui coopère avec un écrou (15) lui-même en prise avec la partie extérieure filetée (12) des mors (11). Le corps comporte une butée pour bloquer la rotation de l'écrou en position extrême ouverte des mors. Cette butée comprend une languette élastique qui est mobile entre une position de repos dans laquelle elle est dégagée de l'écrou pour permettre la libre rotation de l'écrou et une position active dans laquelle elle est en prise avec l'écrou pour bloquer la rotation de l'écrou, la butée est dans sa position active sensiblement simultanément à la venue ...

aparelho de grampeamento com um mandril e uma palheta anexáveis liberavelmente ao mesmo

ADJUSTABLE APERTURE APPARATUS

There is disclosed an iris-type arrangement providing an adjustable diameter aperture, particularly suitable for situations where a gripping arrangement is required. There is described an arrangement comprising a plurality of moveable members defining a polygonal aperture, wherein the aperture is continuously adjustable over a range between a minimum and a maximum aperture, individual members being arranged to move between their maximum and minimum aperture positions with a linear motion, with all the moveable members acting in concert. The arrangement may have a closed or open aperture.

Adjustable gripping device

An adjustable gripping device (10) in the nature of an adjustable socket including a body (11) supporting a stem (14) having arcuate guide surfaces (16) along which gripping jaws (19) slide. The gripping jaws (19) include teeth (23) on their outer surfaces and a rotatable adjuster (24) is provided with an internal thread (27) for cooperation with the teeth (23) such that when the adjuster (24) is rotated in opposite directions, the jaws (19) move inwardly and outwardly.

ПНЕВМАТИЧЕСКИЙ ЗАЖИМНОЙ ПАТРОН, СНАБЖЕННЫЙ БЛОКИРОВОЧНЫМ МЕХАНИЗМОМ

Изобретение относится к зажимному пневматическому патрону, снабженному блокировочным механизмом. Зажимной механизм приводит в движение поршень в трубе цилиндра с использованием действия сжатого воздуха и открывает и закрывает с использованием штока, соединенного с поршнем, пару кулачков, захватывая в результате изделие. Блокировочный механизм фиксирует кулачки в положениях захвата изделия. Блокировочный механизм включает первый блокировочный элемент, второй блокировочный элемент и приводное устройство. Первый блокировочный элемент перемещается, когда пара кулачков открывается или закрывается. Второй блокировочный элемент удерживает первый блокировочный элемент так, что фиксирует кулачки в положениях захвата изделия. Приводное устройство относительно смещает первый блокировочный элемент и второй блокировочный элемент в блокирующие положения и неблокирующие положения. Технический результат заключается в том, что даже когда подача сжатого воздуха прекращается, пока изделие захвачено парой ...

ЗАЖИМНОЕ УСТРОЙСТВО

Изобретение относится к области станкостроения, приспособлениям для обрабатывающих станков. Устройство включает планшайбу и сменный стол, предназначенный для разъемного крепления к планшайбе, планшайба имеет, по меньшей мере, три центрирующих паза, и каждый из центрирующих пазов имеет первый боковой торец и второй боковой торец. При этом сменный стол имеет, по меньшей мере, три центрирующих выступа, расположенных и образованных для соответствия, по меньшей мере, трем центрирующим пазам, и планшайба также включает зажимное средство для крепления сменного стола. Для расширения технологических возможностей каждый из центрирующих выступов имеет боковую выемку и/или рельефность, и каждый из первых торцов центрирующих пазов планшайбы предназначен для определения положения соединяющего центрирующего выступа сменного стола. На каждом из вторых торцов центрирующих пазов установлен зажимной элемент, предназначенный для сцепления указанной выемки и/или рельефности соединяющего центрирующего выступа ...

ПНЕВМАТИЧЕСКИЙ ЗАЖИМНОЙ ПАТРОН, СНАБЖЕННЫЙ БЛОКИРОВОЧНЫМ МЕХАНИЗМОМ

Futter mit verbesserter Hülse

Ein Futter weist einen Körper, eine Mehr- bzw. Vielzahl von Backen, die in dem Körper gleit- bzw. verschiebbar positioniert sind, eine Mutter, die mit den Backen so gekoppelt ist, dass eine Drehbewegung der Mutter in Bezug auf den Körper die Backen dazu veranlasst, sich in Richtung zu oder weg von einer in dem Körper gebildeten, axialen Bohrung zu bewegen, und eine Hülse bzw. Muffe mit einem im Allgemeinen zylindrischen inneren Kern mit einer Außenumfangsfläche auf. Der innere Kern ist aus einem harten Polymer gebildet. Eine äußere Haut ist an der Außenumfangsfläche des inneren Kerns angeheftet. Der innere Kern ist um den Körper herum in operativem Eingriff mit der Mutter so angebracht, dass eine Drehung des inneren Kerns in Bezug auf den Körper die Backen dazu veranlasst, sich relativ zu dem Körper hin- und herzubewegen.

EINSTELLBARE GREIFVORRICHTUNG

Spannfutter fuer Bohrwinden

Vorrichtung zur Halterung von Werkstücken mittels einer Spannzange

Power tool and chuck mechanism

The power tool 100, such as a hand-held power drill, includes a handle portion and a housing 2. A chuck 3 is disposed in front of the housing and the chuck is selectively operated in one of a working mode and a chucking mode. The power tool further includes a driving device 4 which can drive the chuck to move axially between first position and a second position. The tool is in the working mode when the chuck is in the first position and is in the chucking mode when the chuck is in the second position. The driving device may include a handling member 5, an actuating member 7, a first lever 61 and a second lever 62. The first lever may be driven by the second lever to rotate about a fulcrum 9. The driving device may also include an elastic restoring element such as a spring 11.

Improvements in Chucks for Holding Drills, Taps, Reamers and like Tools and Bars.

... 129,241. Clare, C. H. March 28, 1919. Chucks.-A chuck for holding drills, taps, reamers, and like tools or bars particularly parallelshank drills, consists of an internally threaded shank engaging the left-hand threaded end of a split taper sleeve so that as the chuck commences to rotate the sleeve is forced outward to engage an internally coned removable nose-piece. The shank a has an external right-hand thread to secure the coned nosepiece c, and an internal left-hand thread to engage a similar thread on the tapered split sleeve b'. The inner end of the sleeve may be closed except for a flat-sided slot b<3> to receive the drill &c. shank, or may be open to allow the drill, bar, &c. to project any desired distance into the shank. The drill &c. is inserted in the sleeve and pressed against the work, and the shank is rotated. The sleeve is held stationary by friction between the drill and the work, and thus moved forward by its screw-thread into the nose c, which closes it on the drill & ...

Improvements in Adjustable Screw Cutting Means.

... 4161. Feer, F. March 16. Stocks and dies. - In stocks and dies of the type having transversely-wedged dies, the dies are adjusted by a screw engaging a lever carried by a rotary disk, and lubricant is supplied to the dies through passages in the stock by a piston moving in a hollow handle. Lubricant is supplied to the dies 19 by a passage 13 in a ring secured to the stock, which communicates with the hollow handle 2 through ducts 10, 11 and transverse bore 12. The ducts enter the bore 12 at different positions, so that when filling with lubricant, the duct 11 is closed by the spout of the inserted funnel. The piston-rod 4 is connected to a block 6 and the operating-ring 5 by a screw 7 passing through a slot 33 in an extension from the handle. The dies are operated by a screw 29, a nut 28 on which carries a pin 27 engaging a slot in a lever 25 hinged to a disk 23, which is provided with a pin 21 engaging a recess in one of the dies. Stops 31, 32 on the disk may engage the nut to prevent ...

A power tool

CHUCK WITH TOOL CENTERING MECHANISM

Wood augers and drills - held in chuck of brace by end projection of square cone-section

CHUCKS DRILL HOLDERS

NAIL SCREW DRIVING TOOL HEAD

Chuck arrangement

Bit or drill holder

LOCKING CHUCK

A chuck including a body with a nose section defining an axial bore formed therein, a plurality of jaws movably disposed with respect to the body, and a sleeve rotatably mounted about the body so that rotation of the sleeve moves the jaws relative to the axial bore. A bearing has a first race, a second race, and at least one bearing element disposed therebetween, one of the first race and the second race defining a ratchet and the other defining a pawl biased toward the ratchet. A biasing element is disposed between the pawl and the sleeve. The biasing element exerts a biasing force on the pawl toward the ratchet and the ratchet and the pawl prevent the second race from rotating in the opening direction with respect to the first race when engaged. 1. A chuck for use with a manual or powered driver having a rotatable drive shaft , said chuck comprising:a generally cylindrical body having a nose section and a tail section, said nose section having an axial bore formed therein and a plurality of passageways formed therethrough and intersecting said axial bore;a plurality of jaws movably disposed in said passageways;a generally cylindrical first sleeve rotatably mounted about said body so that rotation of said first sleeve in a closing direction moves said jaws toward a longitudinal axis of said axial bore and rotation of said first sleeve in an opening direction moves said jaws away from said longitudinal axis; anda bearing having a first race adjacent said body, a second race adjacent said first sleeve and a plurality of bearing elements disposed between said first race and said second race, one of said first race and said second race defining a ratchet, and the other of said first race and said second race defining a deflectable first pawl biased toward said ratchet, said ratchet and said first pawl being configured so that when said first pawl engages said ratchet, said ratchet and said first pawl permit said other of said first race and said second race to rotate ...

METHOD AND DEVICE FOR CENTERING AND CLAMPING A WORKPIECE IN A BALANCING MACHINE

The chuck includes a centering clamping member having a variable diameter, a radially extending clamping surface, which is adjacent to the centering clamping member, a movable clamping element, a first spring element, via which the centering clamping member can be moved into a clamping position, a second spring element, via which the clamping element can be loaded with a first force, a third spring element, via which the clamping element can be loaded with a second, higher force, and an axially movable actuating device by which the centering clamping member and the clamping element can be moved into a release position against the force of the first and third spring elements. 1. Chuck for centering and clamping a workpiece in a balancing machine comprising a centering clamping member with a centering portion having a variable diameter , a radially extending clamping surface , which is adjacent to the centering clamping member , a movable clamping element for axially pressing the workpiece against the clamping surface , a first force-exerting element via which the centering clamping member can be moved into a clamping position , a second force-exerting element via which the clamping element can be loaded with a first force , a third force-exerting element , via which the clamping element can be loaded with a second force , and an axially movable actuating device by which the centering clamping member and the clamping element can be moved into a release position against the force of the first and third force-exerting elements.2. Chuck according to claim 1 , wherein the second and third force-exerting elements are designed for loading the clamping element with a second force that is greater than the first force.3. Chuck according to claim 2 , wherein the second force is three times greater than the first force.4. Chuck according to claim 1 , wherein the clamping element is attached to the end of a connecting rod.5. Chuck according to comprising a chuck housing with a ...

LOCKING CHUCK

A chuck including a body having a tail section defining an annular shoulder and a nose section having an axial bore and angularly disposed passageways intersecting the axial bore. An O-ring is disposed in the annular shoulder and a plurality of jaws is slidably positioned in the passageways. A nut is rotatably mounted on the body in engagement with threads on the jaws. A first sleeve and a second sleeve each define a gripping surface thereon and one of the first and second sleeves is axially reciprocal on the body. The one of the first and second sleeves defines an annular groove on an inner surface thereof having a first shoulder and a second shoulder. The O-ring is received in the groove such that axial motion of the one of the first and the second sleeve is limited by abutment of the O-ring with said first and second shoulders. 1. A chuck for use with a manual or powered driver having a housing and a rotatable drive shaft extending therefrom , said chuck comprising:a. a generally cylindrical body having a nose section and a tail section, said tail section having a rear flange defining an annular shoulder and configured to mate with said drive shaft, and said nose section having an axial bore formed therein and a plurality of angularly disposed passageways intersecting said axial bore;b. an O-ring disposed in said annular shoulder of said rear flange;c. a plurality of jaws, each of said plurality of jaws slidably positioned in a respective one of said angularly disposed passageways, each of said jaws having a jaw face formed on one side thereof and threads formed on the opposite side thereof;d. a nut rotatably mounted on said body so that rotation of said nut moves said jaws axially within said passageways;e. a first sleeve; andf. a second sleeve,wherein each of said first sleeve and said second sleeve defines a gripping surface thereon,wherein, in a first state, said first sleeve is rotationally held to said body and said second sleeve is rotationally held to ...

LOCKING CHUCK JAWS

A jaw for use in a drill chuck having a longitudinal center axis, comprising a chuck body which includes a jaw face formed on an inner surface of the chuck body and a plurality of teeth formed on an outer surface of the chuck body, the jaw face being substantially parallel to the longitudinal center axis. A ridge depends inwardly from the jaw face toward the longitudinal center axis. The ridge includes a tool engaging surface that is substantially parallel to the longitudinal center axis and has a width of between 0.020 to 0.060 inches. 1. A jaw for use in securing a shank of a tool in a drill chuck having a longitudinal center axis , comprising:a body including a jaw face formed on an inner surface of the body and a plurality of teeth formed on an outer surface of the body, the jaw face being substantially planar and parallel to the longitudinal center axis; anda ridge depending inwardly from the jaw face toward the longitudinal center axis, the ridge including a tool engaging surface that is substantially planar and parallel to both the jaw face and the longitudinal center axis,wherein only the tool engaging surface engages the shank of the tool when the tool is secured in the chuck.2. The jaw of claim 1 , wherein the tool engaging surface of the ridge is symmetric about a central symmetry plane of the jaw.3. The jaw of claim 2 , wherein the tool engaging surface is transverse to the central symmetry plane of the jaw.4. The jaw of claim 1 , wherein the width of the tool engaging surface of the ridge is between 0.020 and 0.060 inches.5. The jaw of claim 1 , wherein the width of the tool engaging surface of the ridge is approximately 0.032 inches.6. The jaw of claim 1 , wherein the jaw face defines a groove that is parallel to the longitudinal center axis of the chuck claim 1 , the groove being configured to receive an insert that comprises the ridge and the tool engaging surface.7. The jaw of claim 1 , wherein the chuck is configured to receive a drill bit with a ...

HAND-HELD MACHINE TOOL HAVING A STRIKING MECHANISM

In a hand-held machine tool, having a tool holder for holding at least one first tool, which has a tang having a first coupling contour that is able to be connected to the tool holder and having a striking mechanism for the striking drive of the first tool connected to the tool holder in the axial direction of the tool holder in a striking operation associated with the hand-held machine tool, a chuck adapter is provided to hold at least one second tool, which has a tang provided with a second coupling contour, which is able to be connected to the chuck adapter in a torsionally fixed manner. 117-. (canceled)18. A hand-held machine tool , comprising:a tool holder;at least one first tool having a tang provided with a first coupling contour, wherein the first tool is configured to be selectively connected to the tool holder in a torsionally fixed manner;a striking mechanism for a striking drive of the first tool connected to the tool holder in an axial direction of the tool holder in a striking operation associated with the hand-held machine tool; anda chuck adapter configured to be selectively connected in a torsionally fixed manner to the tool holder for holding at least one second tool which has a tang provided with a second coupling contour, wherein the second tool is configured to be selectively connected to the chuck adapter in a torsionally fixed manner.19. The hand-held machine tool as recited in claim 18 , wherein the first tool is configured for one of impact drilling or screwing claim 18 , and wherein the second tool is configured for drilling.20. The hand-held machine tool as recited in claim 18 , wherein:the tang of the first tool has one of (i) a circular cross section having at least two diametrically opposite, radial enlargements, or (ii) a many-sided cross section; andthe tang of the second tool has a circular cross section.21. The hand-held machine tool as recited in claim 20 , wherein the first tool is one of an SDS-Mini tool or a HEX tool.22. The ...

CHUCK

A chuck for use with a driver having a rotatable drive shaft, the chuck including a body having a nose section and a tail section, the tail section being configured to rotate with the drive shaft and the nose section having an axial bore. A plurality of jaws is movably disposed with respect to the body and in communication with the axial bore. A first sleeve is rotatably mounted to the body in operative communication with the jaws so that rotation of the sleeve moves the jaws either toward a longitudinal center axis of the axial bore or away from the longitudinal center axis. A second sleeve is rotatably mounted to the body and is movable between a first position in which the second sleeve is rotatably fixed to the body and a second position in which the second sleeve is rotatable about the body. The second sleeve moves in a direction transverse to the longitudinal center axis of the axial bore when moving between the first position and the second position. 1. A chuck for use with a manual or powered driver having a rotatable drive shaft , said chuck comprising:a generally cylindrical body having a nose section, a tail section and a first set of locking teeth on said body, said nose section having an axial bore formed therein;a plurality of jaws movably disposed with respect to said body and in communication with said axial bore;a nut rotatably mounted about said body such that rotation of said nut in a closing direction moves said jaws toward a longitudinal center axis of said axial bore and rotation of said nut in an opening direction moves said jaws away from said longitudinal center axis;a first sleeve rotatably mounted about said body, said first sleeve being rotatable over a limited angular distance between a first angular position and a second angular position with respect to said nut; anda second sleeve rotatably mounted to said body and rotatably fixed to said nut, said second sleeve including a first portion, a second portion and a second set of locking ...

LOCKING CHUCK

A chuck including a body having a nose section, a tail section and a center axis, the nose section defining an axial bore and a plurality of passageways. A plurality of jaws is disposed in the passageways, a nut is rotatably mounted about the body so that rotation of the nut either moves the jaws toward or away from the center axis, and a sleeve that is rotatably mounted about the body, the sleeve being rotatable with respect to the nut between a first rotational position and a second rotational position. An annular array of locking teeth is non-rotatable with respect to one of the body and the nut. A lock ring includes a projection and is axially movable so that, when engaged, the projection and the locking teeth prevent the lock ring from rotating in the opening direction with respect to the body. 1. A chuck for use with a manual or powered driver having a rotatable drive shaft , the chuck comprising:a generally cylindrical body having a nose section, a tail section and a center axis, the tail section being configured to rotate with the drive shaft and the nose section having an axial bore formed therein and a plurality of passageways formed therethrough and intersecting the axial bore;a plurality of jaws movably disposed in the passageways;a nut rotatably mounted about the body and in operative communication with the jaws so that rotation of the nut in a closing direction with respect to the body moves the jaws toward the center axis of the body and rotation of the nut in an opening direction with respect to the body moves the jaws away from the center axis of the body;a generally cylindrical sleeve rotatably mounted about the body, the sleeve being in operative communication with the nut so that the sleeve rotationally drives the nut but is rotatable with respect to the nut between a first rotational position and a second rotational position;an annular array of locking teeth non-rotatably fixed to the body and facing toward the tail section of the body; anda ...

LOCKING CHUCK

A chuck including a body having a nose section, a tail section and a center axis, the nose section defining an axial bore and a plurality of passageways. A plurality of jaws is disposed in the passageways, a nut is rotatably mounted about the body so that rotation of the nut either moves the jaws toward or away from the center axis, and a sleeve that is rotatably mounted about the body, the sleeve being rotatable with respect to the nut between a first rotational position and a second rotational position. An annular array of locking teeth is non-rotatable with respect to one of the body and the nut. A lock ring includes at least three projections and is axially movable so that, when engaged, the projections and the locking teeth resist the lock ring from rotating in the opening direction with respect to the body. 1a generally cylindrical body having a nose section, a tail section, and a center axis, the tail section being configured to rotate with the drive shaft and the nose section having an axial bore formed therein and a plurality of passageways formed therethrough and intersecting the axial bore;a plurality of jaws movably disposed in the passageways;a nut rotatably mounted about the body and in operative communication with the jaws so that rotation of the nut in a closing direction with respect to the body moves the jaws toward the center axis of the body and rotation of the nut in an opening direction with respect to the body moves the jaws away from the center axis of the body;a generally cylindrical sleeve rotatably mounted about the body, the sleeve being in operative communication with the nut so that the sleeve rotationally drives the nut but is rotatable with respect to the nut between a first rotational position and a second rotational position;an annular array of locking teeth non-rotatably fixed to the body and facing toward the tail section of the body; anda lock ring comprising an annular portion and at least three projections extending from the ...

Substrate processing apparatus

A substrate processing apparatus is used for a spin drying apparatus, a pencil-type scrubbing cleaning apparatus, an IPA drying apparatus and the like, which are used as semiconductor wafer processing apparatuses. The substrate processing apparatus includes a substrate stage and a substrate chuck mechanism. The substrate chuck mechanism includes a chuck body having a substrate placing portion configured to place a peripheral portion of a substrate and a guide surface configured to guide an outer circumferential end surface of the substrate and to position the substrate when the substrate is placed on the substrate placing portion, and a chuck claw rotatably supported on the chuck body and configured to hold the peripheral portion of the substrate between the substrate placing portion and the chuck claw by turning the chuck claw inward in a closing direction. The guide surface comprises a first guide surface and a second guide surface which guide the outer circumferential end surface of the substrate and differ in inclinations from each other.

DRILL CHUCK

A chuck including a body having a tail section and a nose section defining an axial bore. A plurality of jaws are movably disposed with respect to the axial bore and a nut is in threaded engagement with the jaws. A sleeve engages the nut so that rotation of the sleeve moves the jaws. A first ring defines a plurality of teeth and a second ring is rotatable relative to the nut over a limited arc and defines at least one pawl. In a first state, the second ring is non-rotatable relative to the first ring in both the opening and closing directions, and in a second state the first and second rings are rotatable about the body, and the second ring is rotatable relative to the first ring in the closing direction. 1. A chuck for securing a tool with a shank to a manual or powered driver having a drive shaft , the chuck comprising:a. a body having a nose section and a tail section, the nose section having an axial bore formed therein;b. a plurality of jaws movably disposed with respect to the body in communication with the axial bore, the jaws defining a first plurality of threads thereon;c. a nut defining a plurality of threads on an inner circumference thereof, the nut being in threaded engagement with the jaws;d. a sleeve rotatably mounted about the body and in driving engagement with the nut so that rotation of the sleeve moves the jaws;e. a planar first ring having a front face, a rear face and a plurality of teeth disposed about a periphery thereof; and when the chuck is in a first state, the planar first ring and the second ring are rotationally coupled to each other so that the first ring and the second ring are rotatable about the body, and', 'when the chuck is in a second state in which the jaws clamp onto the shank of the tool, the second ring is rotatable relative to the planar first ring in a closing direction so that the at least one tab is biased radially outwardly from an innermost first position to an outermost second position by each tooth as the second ring ...

Impact driver having an impact mechanism

In an impact driver including an impact mechanism for percussive driving of an output drive shaft on which is provided a tool receptacle for receiving an inserted tool, the tool receptacle is embodied as a clamping chuck, a permanent connection being embodied between the clamping chuck and the output drive shaft in order to prevent at least tool-free detachment of the clamping chuck from the output drive shaft.

Method for manufacturing a variator disc for use in a toroidal continuously variable transmission

A steel disc blank provides a first face with a concave race, a second face opposite to the first face, a central through bore extending between the first and second face, and an outer peripheral edge; the disc blank is heat-treated; then the bore is turned, thus obtaining at least one cylindrical turned portion of the bore, and then the concave race is turned, holding the disc blank locked on the lathe by means of jaws engaging on the machined cylindrical portion, using this turned cylindrical portion as a reference surface for turning of the concave race.

LOCKING CHUCK

A chuck including a body having a nose section with an axial bore formed therein, a plurality of jaws in communication with the axial bore, a sleeve rotatably mounted about the body in operative communication with the jaws, the sleeve defining an annular groove adjacent its rear perimeter, a rear cover defining an annular ridge that is received in the annular groove of the sleeve, and a bearing having a first race, a second race and at least one bearing element, wherein one of the first race and the second race defines a ratchet, wherein the other of the first race and the second race defines a pawl, the ratchet and the pawl are configured so that when the pawl engages the ratchet, the ratchet and pawl prevent the second race from rotating in the opening direction with respect to the first race. 1. A chuck for use with a manual or powered driver having a rotatable drive shaft , the chuck comprising:a generally cylindrical body having a nose section and a tail section, the tail section being configured to rotate with the drive shaft and the nose section having an axial bore formed therein;a plurality of jaws movably disposed with respect to the body in communication with the axial bore;a sleeve rotatably mounted about the body in operative communication with the jaws so that rotation of the sleeve in a closing direction moves the jaws toward the axis of the axial bore and rotation of the sleeve in an opening direction moves the jaws away from the axis, the sleeve defining an annular groove adjacent its rear perimeter;a rear cover defining an annular ridge extending radially outwardly from its annular outer surface, the annular ridge being received in the annular groove of the sleeve; anda bearing having a first race adjacent the body, a second race adjacent the sleeve and at least one bearing element disposed between the first race and the second race, wherein one of the first race and the second race defines a ratchet, wherein the other of the first race and the ...

Strength-boosting drill chuck

The invention provides a strength-boosting drill chuck comprising a drill body, a nut and a clamping claw, which the nut and the clamping jaw forms a threaded connection, and the drill body is provided with an inclined clamping claw hole for the clamping claw to slide forward and backward along the clamping claw hole; wherein the drill chuck is provided with a strength-boosting structure of the connecting force of the nut clamping claw, which is provided with a liquid plastic component, and the structure for exerting force and transmitting force to the liquid plastic component, which enables the force on the liquid plastic component to be transmitted to the nut. The invention can use the liquid plastic component to transmit force, greatly enhance the binding force between the nut and the clamping claw, and increase the force to resist the reverse force and the inertia force. Whether it is a hand tight drill chuck or a drill chuck with self-locking function, it can cope with the adverse effects caused by various reasons on the drill chuck to hold the drill bit and keep the locking state, and significantly improve the properties of the drill chuck, and prevent loosening during drilling.

TOOL ATTACHMENT FOR A HAND-HELD MACHINE TOOL

In a tool attachment for fastening to a fastening interface of a hand-held machine tool, having a locking unit which in an unlocked state makes it possible for the tool attachment to be placed on the fastening interface of the hand-held machine tool and in a locked state makes it possible for the tool attachment to be locked to the fastening interface of the hand-held machine tool for operation, the locking unit having a rotatable locking body, and a first rotational position of the locking body being associated with the unlocked state and a second rotational position of the locking body being associated with the locked state, the locking unit has a locking member which is configured to prevent rotation of the locking body from the second rotational position into the first rotational position in the locked state. 1. A tool attachment for fastening to a fastening interface of a hand-held machine tool , comprising:a locking unit which in an unlocked state makes it possible for the tool attachment to be placed on the fastening interface of the hand-held machine tool and in a locked state makes it possible for the tool attachment to be locked to the fastening interface of the hand-held machine tool for operation, the locking unit having a rotatable locking body, and a first rotational position of the locking body being associated with the unlocked state and a second rotational position of the locking body being associated with the locked state,wherein the locking unit has a locking member which is configured to prevent rotation of the locking body from the second rotational position into the first rotational position in the locked state.2. The tool attachment according to claim 1 , wherein the locking member is configured to cooperate in the locked state with a locking element associated with the fastening interface of the hand-held machine tool.3. The tool attachment according to claim 2 , wherein the locking element has at least one set of locking teeth.4. The tool ...

CHUCK MULTI-MODE JAW MOVEMENT

A chuck for use with a power driver having a rotatable drive spindle is provided. The chuck may include a clamping assembly comprising a clamping member that operably couples the sleeve to a nut. The clamping assembly may be configured to transition the chuck between a rapid jaw adjustment mode and a clamping mode. In the rapid jaw adjustment mode, a sleeve may be configured to rotate the clamping member with the nut to cause rotational movement of the nut relative to jaws and a chuck body, which may cause translational movement of the jaws relative to the chuck body. In the clamping mode, the nut may be rotationally fixed with the jaws and the clamping member may rotate relative to the nut to cause the nut to move axially relative to a center axis of the chuck which causes the jaws to translate relative to the body and clamp onto a working bit. 1. A chuck for use with a power driver having a rotatable drive spindle , the chuck comprising:a plurality of jaws, each jaw including jaw teeth;a body, wherein the plurality of jaws are configured to rotate with the body about a center axis of the chuck;a sleeve;a nut having nut teeth, the nut teeth being operably coupled with at least some of the jaw teeth in a helically threaded coupling; anda clamping assembly comprising a clamping member that operably couples the sleeve to the nut, the clamping assembly being configured to transition the chuck between a rapid jaw adjustment mode and a clamping mode;wherein, in the rapid jaw adjustment mode, the sleeve is configured to rotate the clamping member with the nut to cause rotational movement of the nut relative to the jaws and the body, which causes translational movement of the jaws relative to the body;wherein, in the clamping mode, the nut is rotationally fixed with the jaws and the clamping member rotates relative to the nut to cause the nut to move axially relative to the center axis which causes the jaws to translate relative to the body.2. The chuck of claim 1 , ...

CHUCK WITH AUTOMATIC JAW ADJUSTMENT

Various chucks for use with a power driver having a rotatable drive spindle are provided. One chuck includes a plurality of jaws disposed at a forward end of the chuck, a body, a push plate, a jaw spring, and a nut. The plurality of jaws may be disposed in the body and configured to rotate with the body about a center axis of the chuck. The push plate may be operably coupled to each of the jaws. The jaws may be configured to translate forward to close the jaw opening in response to the push plate translating axially forward. The jaw spring may be configured to apply a forward directed force to urge the push plate forward. The nut may have nut teeth that cause the jaws to translate forward and clamp onto the working bit in response to the nut being rotated in a tightening direction. 1. A chuck for use with a power driver having a rotatable drive spindle , the chuck comprising:a plurality of jaws disposed at a forward end of the chuck, the jaws defining a jaw opening between the jaws for receiving a working bit;a body, wherein the plurality of jaws are disposed in respective passageways in the body and configured to rotate with the body about a center axis of the chuck;a push plate operably coupled to each of the jaws, wherein the jaws are configured to translate forward in the respective passageways to close the jaw opening in response to the push plate translating axially forward;a jaw spring configured to apply a forward directed force to urge the push plate forward;a sleeve; anda nut having nut teeth configured to be engagable in a helically threaded coupling;wherein the sleeve is configured to cause the nut to rotate in a tightening direction in response to the sleeve being rotated in the tightening direction and the nut being rotationally engaged with the sleeve; andwherein the nut is configured to cause the jaws to translate forward and clamp onto the working bit in response to the nut being rotated in the tightening direction.2. The chuck of claim 1 , wherein ...

Power transfer device, orbital pipe cutting device and hydraulic chucking device

Disclosed are a power transfer device for transferring external power to a rotary body, a pipe cutting device using the power transfer device and a hydraulic chucking device using the power transfer device. The power transfer device is configured to transfer external power to a rotary body coupled to one side of a main body. The power transfer device includes at least one double-action interlocking cylinder mounted to a rear surface of the rotary body and provided with a rod protruding toward the main body, a push unit installed in the main body and provided with at least one pusher protruding toward the rotary body, and a bearing disposed between the pusher of the push unit and the rod of the interlocking cylinder and configured to allow relative rotation of the pusher and the rod and to transfer power between the pusher and the rod.

HAND-HELD POWER TOOL

The present invention relates to the technical field of hand-held tools. Disclosed is a hand-held power tool, comprising: a housing; a motor; a chuck assembly; and a transmission mechanism having a drive shaft. The chuck assembly comprises a main body, a jaw, and an adjustment member threadedly connected to the jaw. The power tool has a drilling mode in which the main body, the jaw and the adjustment member rotate together, and an auto chuck mode in which the adjustment member and the main body can rotate relative to each other to realize opening and closing of the jaw. The power tool further comprises a first supporting member and a second supporting member used to rotatably support the main body at the housing. The first supporting member and the second supporting member are at least partially overlapped with the jaw in an axial direction of the drive shaft, such that the power tool is structurally compact in the axial direction. The main body is provided with an accommodation cavity therein. The first supporting member is positioned in the accommodation cavity, such that the tool is also structurally compact in a radial direction. 1. A hand-held power tool , comprising:a housing;a motor disposed in the housing and being configured to be capable of outputting a rotational power;a chuck assembly comprising a main body, a plurality of chuck jaws movably disposed relative to the main body, and an adjustment member threadedly coupled to the plurality of chuck jaws; anda transmission mechanism comprising a drive shaft configured for transmitting the rotational power of the motor,wherein the power tool is at least provided with a drilling mode and an auto chuck mode; when the power tool is in the drilling mode, the main body is driven by the drive shaft and rotates together with the chuck jaws and the adjustment member;when the power tool is in the auto chuck mode, one of the adjustment member and the main body is rotatable relative to the other of the adjustment member ...

MATERIAL TRANSFERRING AND POSITIONING DEVICE FOR WHEEL MACHINING CENTER

The present application provides a material transferring and positioning device for a wheel machining center, which includes a base plate, a base, a first bearing, a first shaft sleeve, a hydraulic cylinder brake, a rotary cylinder, a cap and so on. The application may meet the positioning requirement of the wheel machining center, and has the advantages of simple structure, convenient manufacture, stable performance, high positioning precision and simple operation, so that it is very suitable for automatic mass production. 1. A material transferring and positioning device for a wheel machining center comprising a base plate , a base , a first bearing , a first shaft sleeve , a hydraulic cylinder brake , a rotary cylinder , a cap , a second shaft sleeve , a second bearing , a sleeve , contacts , first linear bearings , springs , a synchronous cam , an end cap , a rotating shaft , a conical support , guide shafts , a bearing seat , second linear bearings , a mount , a connecting plate , a mounting plate and a cylinder , the material transferring and positioning device for a wheel machining center is provided with a high-precision centering mechanism and a circumferentially automatic adjusting mechanism;in the high-precision centering mechanism, the hydraulic cylinder brake, the rotary cylinder, the sleeve and the second shaft sleeve are installed on the first shaft sleeve; the second bearing and the rotating shaft are enclosed in the second shaft sleeve by the end cap, and two ends of the rotating shaft are respectively connected to output shaft of the rotary cylinder and the synchronous cam; the three or more first linear bearings are uniformly installed in side wall of the sleeve; three or more uniform curved surfaces are provided in side wall of the synchronous cam; outer end of each of the three or more contacts is provided with one of the springs and the first linear bearings, and inner ends of the three or more contacts are respectively connected to the same ...

KEYLESS CHUCK ASSEMBLY

A keyless chuck for attaching a tool bit to a power tool includes a knob having a central aperture and defining a longitudinal axis, a hub within the central aperture and configured to attach to the power tool, and a collet within the hub and having a receiving end configured to receive the tool bit. The knob is adjustable between a locked position in which a clamping force is applied to the collet to retain the tool bit therein, and an unlocked position in which the clamping force is relieved to permit removal of the tool bit. 1. A keyless chuck for attaching a tool bit to a power tool , the keyless chuck comprising:a knob having a central aperture and defining a longitudinal axis;a hub within the central aperture and configured to attach to the power tool; anda collet within the hub and having a receiving end configured to receive the tool bit;wherein the knob is adjustable between a locked position in which a clamping force is applied to the collet to retain the tool bit therein, and an unlocked position in which the clamping force is relieved to permit removal of the tool bit.2. The keyless chuck of claim 1 , wherein the power tool includes a spindle claim 1 , and the hub is configured to attach to the spindle.3. The keyless chuck of claim 1 , wherein the knob is adjustable between the locked position and the unlocked position by rotation of the knob relative to the hub about the longitudinal axis.4. The keyless chuck of claim 3 , wherein one of the knob and the hub includes a circumferential slot extending about a circumference thereof claim 3 , wherein at least a portion of the circumferential slot is obliquely oriented relative to the longitudinal axis claim 3 , and wherein the keyless chuck further comprises a ball bearing that protrudes partially into the slot.5. The keyless chuck of claim 4 , wherein the other of the knob and the hub includes an indentation claim 4 , and the ball bearing is partially contained within the indentation.6. The keyless chuck of ...

CHUCK WITH SLIP PROTECTION

A chuck is provided for use with a powered driver having a rotatable drive shaft. The chuck includes a plurality of jaws () movably disposed in passageways () of a cylindrical body (), a nut () rotatably mounted about the body () and in communication with the jaws () such that rotation of the nut () in a closing direction moves the jaws () toward each other and rotation of the nut () in an opening direction moves the jaws () away from each other, and a sleeve rotatably mounted about the body (). The sleeve is in communication with the nut () such that rotation of the sleeve rotationally drives the nut (). The chuck also including a biasing element () disposed between the nut () an at least a portion of the sleeve configured to bias the sleeve toward a neutral position. The biasing element () limits an inertial force of the sleeve applied to the nut during operation of the powered driver. 1. A chuck for use with a powered driver having a rotatable drive shaft , the chuck comprising: a plurality of jaws movably disposed in the passageways;', 'a nut rotatably mounted about the body and in operative communication with the jaws such that rotation of the nut in a closing direction moves the jaws toward an axis of the axial bore and rotation of the nut in an opening direction moves the jaws away from the axis;', 'a sleeve rotatably mounted about the body; wherein the sleeve is in operative communication with the nut such that rotation of the sleeve rotationally drives the nut; and, 'a body having a nose section and a tail section, the tail section being configured to rotate with the drive shaft and the nose section having an axial bore formed therein and a plurality of passageways formed therethrough and intersecting the axial bore;'}a biasing element disposed between the nut an at least a portion of the sleeve, the biasing element being configured to bias the sleeve toward a neutral position, wherein the biasing element limits an inertial force of the sleeve applied to ...

TOOL HOLDER

A tool holder includes a basic body, in which a tool receiving region is located, a circular cylindrical clamping chuck having several joints and an external thread which has an external pitch angle, as well as a union nut having an internal thread which has an internal pitch angle. The union nut has a stopping face on the basic body or on the clamping chuck. The external pitch angle is different from the internal pitch angle. 2. Tool holder according to claim 1 , wherein the external thread has a thread point angle that is at least 60°.3. Tool holder according to claim 1 , wherein the internal thread has a thread pitch ranging from 0.75 mm to 1.50 mm.4. Tool holder according to claim 1 , wherein the clamping chuck and the union nut each comprise a material that has an elasticity modulus of at least 180 kN/mm.5. Tool holder according to claim 1 , wherein the basic body has a channel for receiving a positioning pin claim 1 , which cuts the tool receiving region orthogonally with respect to the longitudinal axis of the basic body.6. Tool holder according to claim 1 , wherein the stopping face is located at the end of the basic body facing towards the clamping chuck.7. Tool holder according to claim 6 , wherein the external pitch angle is smaller than the internal pitch angle.8. Tool holder according to claim 7 , wherein the external pitch angle is in the range of 99.7% to 99.9% of the internal pitch angle.9. Tool holder according to claim 1 , wherein the stopping face is located at the end of the clamping chuck facing away from the basic body.10. Tool holder according to claim 9 , wherein the external pitch angle is greater than the internal pitch angle.11. Tool holder according to claim 10 , wherein the external pitch angle is in the range of 100.1% to 100.3% of the internal pitch angle. Applicant claims priority under 35 U.S.C. §119 of German Application No. 10 2014 111 898.7 filed Aug. 20, 2014, the disclosure of which is incorporated by reference.1. Field of the ...

DRILL CHUCK

A drill-chuck body is rotatable about an axis and formed with a plurality of passages opening axially rearward at a rear face of the body and radially outwardly at windows in a side of the body. Jaws displaceable between front and rear positions in the passages each have a row of teeth exposed radially outwardly at the respective windows. A tightening ring rotatable about the axis is formed with an internal screwthread engaged at the windows with the teeth such that rotation of the ring moves the jaws between the front and rear positions. A tightening sleeve fitted around and coupled rotationally to the tightening ring extends axially rearward past the windows. This brace ring is radially inwardly engaged with the body and engages radially outwardly between the windows and the rear face with the tightening sleeve so as to coaxially center it on the body. 1. A drill chuck comprising:a chuck body rotatable about a chuck axis and formed with a plurality of passages opening axially rearward at a rear face of the body and radially outwardly at windows in a side of the body;respective jaws displaceable between front and rear positions in the passages, the jaws each having a row of jaw teeth exposed radially outwardly at the respective windows;a tightening ring rotatable about the axis and formed with an internal screwthread engaged at the windows with the jaw teeth such that rotation of the ring moves the jaws between the front positions and the rear positions;a tightening sleeve fitted around and coupled rotationally to the tightening ring and extending axially rearward past the windows; anda brace ring radially inwardly engaged with the chuck body and operatively engaged radially outwardly between the windows and the rear face with the tightening sleeve so as to coaxially center the tightening sleeve on the chuck body.2. The drill chuck defined in claim 1 , wherein the jaws project in the rear positions axially rearward past the rear face.3. The drill chuck defined in ...

DEVICE FOR RECORDING CENTRIC JAW RELATION AND ORIENTATION JAW RELATION SIMULTANEOUSLY

The device for recording centric jaw relation and orientation jaw relation simultaneously is disclosed that provides an accurate and precise recording of centric jaw relation as well as orientation jaw relation recording and transfer. The device includes a central bar, a centric relation recorder, a dentulous adjustable fork or an edentulous fork, a semi-circular frame, a nasion pointer and an orbital pointer. The central bar is received by a plurality of clamping assemblies that adjustably position the nasion pointer, the adjustable fork or the edentulous fork and the centric relation recorder respectively. The device can be used in case of both, dentulous as well as edentulous subjects. The device can advantageously transfer the centric relation record to any semi-adjustable articulators or non-adjustable articulators. 1. A device for recording centric jaw relation and orientation jaw relation simultaneously of an edentulous subject in a single step comprising:a central bar;a first recorder comprising a semi-circular frame adjustably positionable on the central bar through a first clamping assembly, the semi-circular frame having a first end and a second end defining a pair of posterior reference points relative to the first clamping assembly of the semi-circular frame secured to the central bar;a centric relation recorder including, comprising a calibrated rod, a calibrated slider and an arcuate grip, the calibrated rod having a predefined first main scale and the calibrated slider having a predefined second scale for recording a centric jaw relation of the edentulous subject through the arcuate grip thereby adjusting according to the first main scale and the second scale of the calibrated rod and the calibrated slider, respectively, the calibrated slider being freely movable within the calibrated rod along a predefined axis thereof;an edentulous fork having a curved first end and a straight second end, the curved first end having a C-clip attached at a ...

Drill chuck

A drill chuck is disclosed in the present invention. A ring body that can be expanded and deformed outwardly and recovered inwardly is disposed between the ring of steel balls at the back of the nut and the rotary sleeve, the ring body has a portion abutted by steel balls and an outer portion engaged with the rotary sleeve or a part fixedly coupled to the rotary sleeve after the ring body is expanded and deformed outwardly, there is a gap between the outer portion and the rotary sleeve or the part fixedly coupled to the rotary sleeve when the drill chuck is not working, and the gap is within the deformation range of the ring body, a steel ball pushing structure that relies on the back thrust generated when the drill chuck is working is formed between the nut and the support structure, such that the steel balls can push outwardly to expand and deform the ring body outwardly. The present invention has a simple structure, and can resist inertia and prevent loosening of the rotary sleeve on the basis of the original structure of the drill chuck, such that the drill chuck can maintain the original working state during the drilling work.

DRILL CHUCK

A drill chuck has a chuck body centered on an axis, made of plastic, and formed with an axially rearwardly open drive-spindle seat, at least one axially extending slot of ring-segment section opening radially inward into the seat, an axially forwardly open tool-holding cavity, and a plurality of angled jaw guides. Respective jaws are movable in the guides and engaged by a threaded ring axially fixed on the body and rotatable about the axis thereon. A tightening sleeve rotatable about the axis on the body is connected to the ring for rotating same. 1. A drill chuck comprising: an axially rearwardly open drive-spindle seat,', 'at least one axially extending slot of ring-segment section opening radially inward into the seat,', 'an axially forwardly open tool-holding cavity, and', 'a plurality of angled jaw guides; to respective jaws movable in the guides;, 'a chuck body centered on an axis, made of plastic, and formed with'}a threaded ring axially fixed on the body, rotatable about the axis thereon, and threadedly engaging the jaws;a tightening sleeve rotatable about the axis on the body and connected to the ring for rotating same.2. The drill chuck defined in claim 1 , wherein the body is further formed witha support flange axially level with the seat, formed with axially throughgoing holes aligned with the guides, and radially outwardly engaging the tightening sleeve to center same.3. The drill chuck defined in claim 1 , wherein there are a plurality of the slots angularly equispaced about the axis.4. The drill chuck defined in claim 1 , wherein the body is formed at a rear face with a seat groove open axially rearwardly and radially inwardly into the drive-spindle seat claim 1 , the chuck further comprising:a metal support washer fitted in the seat and having an inner periphery exposed in the drive-spindle seat, whereby a drive spindle in the seat is braced radially against the support washer.5. The drill chuck defined in claim 4 , wherein the guides open at holes ...

POWER TOOL CHUCK

A chuck including a chuck body that supports a plurality of jaws. An outer sleeve is axially fixed with respect to the chuck body. A nut is coupled to the outer sleeve, and the nut is movable axially and radially relative to the chuck body. The nut interacts with the jaws such that when the outer sleeve rotates, the nut moves axially and radially relative to the body. 1. A chuck comprising:a chuck body that supports a plurality of jaws;an outer sleeve that is axially fixed with respect to the chuck body; anda nut coupled to the outer sleeve, the nut being movable axially and rotationally relative to the chuck body;wherein the nut interacts with the jaws such that when the outer sleeve rotates, the nut moves axially and rotationally relative to the body.2. The chuck of claim 1 , wherein when the nut moves axially and rotationally relative to the chuck body claim 1 , the jaws move towards or away from one another.3. The chuck of claim 2 , wherein the chuck has a front end at which the jaws extend from the chuck and are configured to hold a bit; andwherein the jaws move away from one another when the nut moves axially toward the front end.4. The chuck of claim 3 , wherein the chuck has a rear end opposite the front end; andwherein the jaws move towards one another when the nut moves axially toward the rear end.5. The chuck of claim 1 , wherein the nut includes internal threads.6. The chuck of claim 5 , wherein the jaws include external threads that mesh with the internal threads on the nut.7. A power tool comprising;a housing;a motor disposed in the housing; anda chuck configured to hold an accessory, the chuck being selectively driven by the motor; a chuck body;', 'a plurality of jaws disposed at least partially in the chuck body;', 'a chuck sleeve that is axially fixed with respect to the chuck body, and selectively rotatable with respect to the chuck body; and', 'a nut coupled to the outer sleeve, the nut being movable axially and rotationally relative to the chuck ...

Expansion Chuck

The invention relates to a hydraulic expansion chuck with a basic body, with an expansion bush which is received in the basic body and defines a reception space for a tool to be chucked, and with a pressure chamber which is delimited between the expansion bush and the basic body, at least one solder region being provided, in which the expansion bush is soldered to the basic body, wherein, between the pressure chamber and the solder region, a seal is provided which is formed by an at least essentially fluid-tight bearing contact of the expansion bush against the basic body. 115.-. (canceled)16. A hydraulic expansion chuck , comprising:a basic body;an expansion bush which is received in the basic body and defines a reception space for a tool to be chucked;a pressure chamber which is delimited between the expansion bush and the basic body, a solder region being provided in which the expansion bush is soldered to the basic body, wherein between the pressure chamber and the solder region a seal is provided which is formed by an at least essentially fluid-tight bearing contact of the expansion bush against the basic body; andwherein the seal is formed by a press fit between the expansion bush and the basic body by a press portion which differs in diameter from the diameter of the solder region lying next to it.17. The expansion chuck as claimed in claim 16 , wherein the press portion is formed by a portion of the expansion bush which is thickened in diameter and on one side of which the solder region lies and on the other side of which the pressure chamber lies.18. The expansion chuck as claimed in claim 16 , wherein the solder region is adjacent an axial rearward end of the expansion bush.19. The expansion chuck as claimed in claim 18 , further including an additional solder region adjacent a flange of the expansion bush that is adjacent an axial forward end of the expansion bush.20. A hydraulic expansion chuck claim 18 , comprising:a basic body;an expansion bush which ...

SELF-LOCKING DEVICE OF ELECTRIC TOOL OUTPUT SHAFT

A self-locking device of an electric tool output shaft includes a main shaft, a power output disk, a stop ring, and a plurality of self-locking pins. An upper end surface of the power output disk is provided with a plurality of drive blocks. A bottom of the main shaft is inserted into the power output disk. An inner side of the power output disk is provided with a plurality of drive surfaces. An outer wall of a lower end of the main shaft is provided with a plurality of driven surfaces and a plurality of self-locking surfaces. The main shaft has the driven surfaces to lean against the drive surfaces and the power output disk to accomplish a power output function, and further has the self-locking surfaces to lean against the self-locking pins to accomplish a self-locking function. 1. A self-locking device of an electric tool output shaft , comprising a main shaft , a power output disk , a stop ring , and a plurality of self-locking pins , an upper end surface of the power output disk being provided with a plurality of drive blocks equally arranged along a circumferential direction , a bottom of the main shaft being inserted into the power output disk , the stop ring being fitted at outer sides of the plurality of drive blocks , characterized by: the plurality of self-locking pins being each inserted in an interval between every two of the plurality of drive blocks and located between the stop ring and the main shaft , an inner side of the power output disk being provided with a plurality of drive surfaces corresponding to the respective drive blocks , an outer wall of a lower end of the main shaft being provided with a plurality of driven surfaces for leaning against the respective drive surfaces and a plurality of self-locking surfaces for leaning against the respective self-locking pins , the plurality of driven surfaces and the plurality of self-locking surfaces being equally spaced along a circumferential direction of the main shaft and disposed on the outer wall ...

TOOL BITS AND BIT HOLDERS HAVING NON-CIRCULAR CROSS-SECTIONS

A tool bit connectable to a tool. The tool bit including a tool body having a working end portion, an insertion end portion, and an outer surface formed on the insertion end portion. The insertion end portion defines an end of the tool body and configured to be coupled to the tool. The tool bit also includes a non-circular profile formed on the tool body and partially defining the outer surface, and an alignment region positioned between the non-circular profile and the end of the tool body. The alignment region partially defines the outer surface to facilitate alignment of the non-circular profile with the tool. 1. A tool bit connectable to a tool , the tool bit comprising:a tool body including a working end portion, an insertion end portion, and an outer surface formed on the insertion end portion, the insertion end portion defining an end of the tool body and configured to be coupled to the tool;a non-circular profile formed on the tool body and partially defining the outer surface; andan alignment region positioned between the non-circular profile and the end of the tool body, the alignment region partially defining the outer surface to facilitate alignment of the non-circular profile with the tool.2. The tool bit of claim 1 , wherein the alignment region includes a swept profile.3. The tool bit of claim 2 , wherein the tool body defines a central longitudinal axis extending through the working end portion and the end of the tool body claim 2 , and wherein the swept profile is rotated about the central longitudinal axis.4. The tool bit of claim 1 , wherein the alignment region includes a chamfer claim 1 , wherein the chamfer increases a diameter of the outer surface from the end of the tool body claim 1 , and wherein the chamfer has a similar profile as the non-circular profile.5. The tool bit of claim 1 , further comprising a circular region formed on the insertion end portion between the end of the tool body and the non-circular profile.6. The tool bit of ...

DRILL CHUCK

A drill chuck having a chuck body, on which a threaded ring is guided, which is in engagement with rows of teeth assigned to clamping jaws for the purpose of adjusting the clamping jaws having a thread and guided in the chuck body, as well as comprising a clamping sleeve which surrounds the chuck body and may be coupled with the threaded ring in a torque-transmitting manner and which may be coupled with the chuck body by a locking device. The locking device is formed by a locking sleeve, which has a lock toothing and is rotatably fixedly connected to the threaded ring and which is axially movable between a drilling configuration and a clamping configuration relative to the threaded ring and the clamping sleeve; the locking device is also formed by a mating toothing assigned to the chuck body. 1. A drill chuck comprising:a chuck body on which a threaded ring is guided that is in engagement with rows of teeth assigned to clamping jaws for adjusting the clamping jaws having a thread and being guided in the chuck body;a clamping sleeve that surrounds the chuck body and coupled with the threaded ring in a torque-transmitting manner and that are coupled with the chuck body by a locking device, the locking device being formed by a locking sleeve that has a lock toothing and is rotatable fixedly connected to the threaded ring and that is axially adjustable between a drilling configuration and a clamping configuration relative to the threaded ring and the clamping sleeve, and the locking device also being formed by a mating toothing assigned to the chuck body.2. The drill chuck according to claim 1 , wherein the toothing engagement formed between the lock toothing and the mating toothing operates in an axial direction.3. The drill chuck according to claim 1 , wherein an elastic restoring element acts upon the locking sleeve.4. The drill chuck according to claim 3 , wherein the elastic restoring element is formed by a sinuous spring.5. The drill chuck according to claim 1 , ...

DRILL CHUCK

A drill chuck having a chuck body, on which a threaded ring is guided, which is in engagement with rows of teeth assigned to clamping jaws via an outer thread for the purpose of adjusting the clamping jaws guided in the chuck body, as well as having a clamping sleeve which surrounds the chuck body and may be coupled with the threaded ring in a torque-transmitting manner. The chuck body is formed in multiple parts from a coupling part having a spindle receptacle and from a jaw guiding part, in which guide receptacles run, inclined toward the chuck axis, for the purpose of guiding the clamping jaws. 1. A drill chuck comprising:a chuck body on which a threaded ring is guided that is in engagement with rows of teeth assigned to clamping jaws via an outer thread for adjusting the clamping jaws guided in the chuck body; anda clamping sleeve that surrounds the chuck body and is coupled with the threaded ring in a torque-transmitting manner,wherein the chuck body is formed in multiple parts from a coupling part having a spindle receptacle and from a jaw guiding part, in which guide receptacles run inclined toward the chuck axis for guiding the clamping jaws.2. The drill chuck according to claim 1 , wherein guide grooves are assigned to the guide receptacles and guide profiles corresponding to the guide grooves are assigned to the clamping jaws claim 1 , which are designed as flat jaws.3. The drill chuck according to claim 2 , wherein the guide profiles claim 2 , which have an essentially rectangular cross section claim 2 , are disposed on a side of the clamping jaws facing away from the row of teeth.4. The drill chuck according to claim 1 , wherein the diameter of the jaw guiding part is locally enlarged in the area of the guide receptacles accommodating the clamping jaws.5. The drill chuck according to claim 1 , wherein the jaw guiding part has a cylindrical first partial section on a side facing away from the coupling part onto which a frustoconical second partial section ...

Tool attachment for a hand-held machine tool

In a tool attachment for fastening to a fastening interface of a hand-held machine tool, having a locking unit which in an unlocked state makes it possible for the tool attachment to be placed on the fastening interface of the hand-held machine tool and in a locked state makes it possible for the tool attachment to be locked to the fastening interface of the hand-held machine tool for operation, the locking unit having a rotatable locking body, and a first rotational position of the locking body being associated with the unlocked state and a second rotational position of the locking body being associated with the locked state, the locking unit has a locking member which is configured to prevent rotation of the locking body from the second rotational position into the first rotational position in the locked state.

POWER TOOL WITH AUTOMATIC CHUCK

A power tool having a tool portion, a chuck and a lock. The tool portion has a housing, a motor, and a spindle driven by the motor. The chuck has a body coupled to the spindle for rotation therewith, and a sleeve rotatably disposed about the body. The lock has a first lock structure pivotally coupled to the housing about a pivot axis, and a second lock structure. The first lock structure has a first locking feature. The second lock structure has a second locking feature and is coupled to the sleeve for rotation therewith. Pivoting the first lock structure into a first pivot position positions the first locking feature in a rotational path of the second locking feature. Engagement of the first and second locking features inhibits rotation of the sleeve so that rotation of the spindle will cause corresponding rotation of the body relative to the sleeve. 120.-. (canceled)21. A power tool comprising:a tool portion having a housing, a motor disposed in the housing, and an output spindle driven by the motor;a chuck having a chuck body, which is coupled to the output spindle for rotation therewith, and a sleeve that is disposed about and rotatable relative to the chuck body;the chuck further including jaws for holding a bit, wherein the jaws are configured to be movable in a direction of closing the jaws to hold the bit and a direction of opening the jaws to release the bit;a trigger switch configured to operate the motor to drive the output spindle and the chuck;an actuating mechanism configured to operate the motor to open and close the jaws;further comprising at least one controller, the at least one controller configured to receive a trigger signal from the trigger switch indicative of operating the motor to rotate the jaws and further configured to receive an actuating mechanism signal from the actuating mechanism indicative of operating the motor to open and close the jaws;wherein during an operation of closing the jaws, the at least one controller is configured to ...

Chuck with Locking Clutch

A chuck () is provided that includes a plurality of jaws () and a body () configured to rotate with a drive spindle of a power driver. The chuck () may also include a nut () comprising nut teeth (). The nut () may be operably coupled to the jaws () and configured to move the jaws () relative to the body () in the opening or closing direction. The chuck () may also include a clutch () comprising clutch teeth (). The clutch () may be configured to move between a working position and a jaw actuating position. In the working position, the clutch teeth () may be engaged with the nut teeth () to prevent movement of the nut () relative to the body (), and, in the jaw actuating position, the clutch teeth () need not be engaged with the nut teeth () and the nut () may be free to move relative to the body (). 1. A chuck for use with a power driver having a rotatable drive spindle , the chuck comprising:a plurality of jaws, each jaw including jaw threading;a body configured to rotate with the drive spindle, wherein the plurality of jaws are configured to rotate with the body about a center axis of the chuck, wherein the plurality of jaws are also configured to move relative to the body in an opening or closing direction;a nut operably coupled with the jaw threading of the jaws such that rotation of the nut relative to the body moves the jaws relative to the body in the opening or closing direction, the nut further comprising nut teeth; anda clutch including clutch teeth, the clutch being operably coupled to the body such that the clutch rotates with the body, wherein the clutch is configured to move between a working position and a jaw actuating position;wherein, in the working position, the clutch teeth are engaged with the nut teeth to prevent rotation of the nut relative to the body, andwherein, in the jaw actuating position, the clutch teeth are not engaged with the nut teeth and the nut is rotatable about the body.2. The chuck of claim 1 , wherein the clutch is configured ...

CHUCK ASSEMBLY FOR A ROTARY POWER TOOL

A chuck assembly for a rotary power tool includes a chuck body rotatable about a central axis. The chuck body has a plurality of slots, each oriented at an oblique angle relative to the central axis. The chuck assembly also includes a plurality of jaws, each movable along a respective one of the slots. The chuck assembly also includes a collar coupled to the plurality of jaws. The collar is selectively engageable with the chuck body such that, when engaged, the plurality of jaws are movable along the plurality of slots in response to rotation of the collar. 1. A chuck assembly for a rotary power tool , the chuck assembly comprising:a chuck body rotatable about a central axis, the chuck body including a plurality of slots, each of the slots oriented at an oblique angle relative to the central axis;a plurality of jaws, each of the jaws movable along a respective one of the slots; anda collar coupled to the plurality of jaws,wherein the collar is selectively engageable with the chuck body such that, when engaged, the plurality of jaws is movable along the plurality of slots in response to rotation of the collar.2. The chuck assembly of claim 1 , wherein the collar is movable relative to the chuck body along the central axis claim 1 , without rotating the collar claim 1 , when the collar is disengaged from the chuck body.3. The chuck assembly of claim 2 , wherein the jaws are movable along the slots in response to movement of the collar along the central axis.4. The chuck assembly of claim 1 , wherein the chuck body includes a first plurality of thread segments claim 1 , and wherein the collar includes a second plurality of thread segments.5. The chuck assembly of claim 4 , wherein the collar is rotatable relative to the chuck body to selectively engage at least one of the first plurality of thread segments with at least one of the second plurality of thread segments.6. The chuck assembly of claim 1 , further comprising a ring coupled to the collar for axial movement ...

Chuck arrangement

Backing and clamping chuck jaw part ( 110, 120 ), respectively, arranged to engage with each other such that respective contact surfaces ( 113, 123 ) a rearranged to come into contact with each other so as to together form a chuck jaw ( 100 ) for a chuck ( 10 ). The invention is characterised in that the backing chuck jaw part is manufactured from a harder metal material than a metal material from which the clamping chuck jaw part is manufactured, in that a the backing chuck jaw part comprises a convex structure ( 126 ), and in that the convex structure is arranged to engage with a corresponding concave structure ( 116 ) of the clamping chuck jaw part so that the said concave structure is permanently deformed as a result of an engagement between said structures resulting from the chuck jaw parts first being arranged in a contacting orientation and thereafter being pressed together into an engagement orientation, in which contact is established between said contact surfaces. The invention also relates to a chuck jaw, a chuck and a method.

Locking chuck

A chuck including a body with a nose section defining an axial bore formed therein, a plurality of jaws movably disposed with respect to the body, and a sleeve rotatably mounted about the body so that rotation of the sleeve moves the jaws relative to the axial bore. A bearing has a first race, a second race, and at least one bearing element disposed therebetween, one of the first race and the second race defining a ratchet and the other defining a pawl biased toward the ratchet. A biasing element is disposed between the pawl and the sleeve. The biasing element exerts a biasing force on the pawl toward the ratchet and the ratchet and the pawl prevent the second race from rotating in the opening direction with respect to the first race when engaged.

DRILL CHUCK

A drill chuck having a chuck body, which is produced from plastic, in particular from fibre-reinforced plastic, and has a spindle holder and a tool holder and in which clamping jaws that can be adjusted by a threaded ring are guided. The chuck body has a securing ring on an outer circumference in a region of the tool holder. 1. A drill chuck comprising:a chuck body that is made of plastic or fiber-reinforced plastic;a spindle socket; anda tool holder in which clamping jaws that are adjustable via a threaded ring are guided in adjustable fashion;a securing bushing arranged on an outer circumference of the chuck body in a vicinity of the tool holder.2. The drill chuck according to claim 1 , wherein the chuck body made of plastic or fiber-reinforced plastic does not have metallic reinforcing inserts.3. The drill chuck according to claim 1 , wherein the securing bushing is cast into the chuck body or is combined with metallic reinforcing elements.4. The drill chuck according to claim 1 , wherein the securing bushing is connectable to the chuck body in an axially immobile fashion.5. The drill chuck according to claim 1 , wherein the securing bushing has a denticulation claim 1 , in particular a fine denticulation claim 1 , on an inner circumference thereof.6. The drill chuck according to claim 5 , wherein a height of the denticulation lies in a range from 0.15 mm to 0.60 millimeters or is 0.25 mm.7. The drill chuck according to claim 5 , wherein an angle between the adjacent tooth flanks lies in an angular range from 45° to 75° or is 60°.8. The drill chuck according to claim 5 , wherein the tooth valleys are rounded and a radius of the rounded tooth valleys lies in a range from 0.10 mm to 0.25 mm or is 0.16 mm.9. The drill chuck according to claim 5 , wherein a number of teeth of the denticulation lies in a range from 80 to 200 claim 5 , in a range from 100 to 140 claim 5 , or is 120 teeth.10. The drill chuck according to claim 1 , wherein the securing bushing is ...

CLAMPING JAW ASSEMBLY AND DRILL CHUCK

The present disclosure provides a clamping jaw assembly and a drill chuck, which solve technical problems of complex structure, small clamping range, poor clamping effect, and high cost of the existing clamping jaw assembly. The clamping jaw assembly includes a first clamping jaw and a second clamping jaw, both of which include a screwing section, an outer surface of each screwing section is arranged with a thread, a top end of each screwing section is arranged with a clamping section, the screwing section is fixedly connected with corresponding damping section. An inner side of the clamping section of the first clamping jaw includes a first clamping part, and an inner side of the clamping section of the second clamping jaw includes a second clamping part matched with the first clamping part. The present disclosure can be widely used in fields of electric tools, machine tool accessories and medical equipment, etc. 1. A clamping jaw assembly , comprising a first clamping jaw , wherein the clamping jaw assembly further comprises a second clamping jaw , both the first clamping jaw and the second clamping jaw comprising a screwing section , each screwing section comprising a thread arranged at an outer surface of the screwing section , a clamping section being arranged at a top end of each screwing section , the screwing section being fixedly connected with corresponding clamping section , an inner side of the clamping section of the first clamping jaw comprising a first clamping part , and an inner side of the clamping section of the second clamping jaw comprising a second clamping part matched with the first clamping part.2. The clamping jaw assembly according to claim 1 , wherein the first clamping part and the second clamping part have a same structure; the first clamping part comprises a plurality of grooves arranged on an inner side of the first clamping part along a circumferential direction of the inner side of the first clamping part; and an internal side of a ...

DEVICE FOR RECORDING CENTRIC JAW RELATION AND ORIENTATION JAW RELATION SIMULTANEOUSLY

The device for recording centric jaw relation and orientation jaw relation simultaneously is disclosed that provides an accurate and precise recording of centric jaw relation as well as orientation jaw relation recording and transfer. The device includes a central bar, a centric relation recorder, a dentulous adjustable fork or an edentulous fork, a semi-circular frame, a nasion pointer and an orbital pointer. The central bar is received by a plurality of clamping assemblies that adjustably position the nasion pointer, the adjustable fork or the edentulous fork and the centric relation recorder respectively. The device can be used in case of both, dentulous as well as edentulous subjects. The device can advantageously transfer the centric relation record to any semi-adjustable articulators or non-adjustable articulators. 1. A device for recording centric jaw relation and orientation jaw relation simultaneously of a dentulous subject in a single step comprising:a centric relation recorder including a calibrated rod, a calibrated slider and an arcuate grip, the calibrated rod having a predefined first main scale, a calibrated slider having a predefined second scale for recording a centric jaw relation of a subject through the arcuate grip thereby adjusting the calibrated rod and calibrated slider; the calibrated slider being freely movable within the calibrated rod along a predefined axis thereof;a dentulous adjustable fork having a first curved end and a second straight end, the first curved end having a pair of arms attached at a predefined position, the arms facilitating fastening of a desired recording material and the second straight end to the central rod;a first combination of reference point including a semi-circular frame and a nasion pointer, the semi-circular frame having two posterior points of reference, the nasion pointer defining a first anterior point of reference; anda second combination of reference point including a semi-circular frame and an ...

RIVET BLOCK INCLUDING INTEGRATED RIVET FEED BORES

A method and rivet apparatus comprise a rivet block, the rivet block comprising a rivet block, a pin bore, and a rivet feed bore. The rivet block is comprised of a top end and a bottom end. The pin bore includes a top end and a bottom end and is disposed within the rivet block. The pin bore extends from the top end to the bottom end of the rivet block and guides a rivet pin that slides downward within the pin bore to push a head of a rivet into a workpiece. The rivet feed bore includes a top end and a bottom end and is disposed within the rivet block. The rivet feed bore extends from the top end to the bottom end of the rivet block, accepts the rivet at the top end of the rivet feed bore, and guides the rivet to the bottom end of the rivet feed bore. The rivet feed bore intersecting the pin bore between the top end and the bottom end of the pin bore at an oblique angle. 1. A rivet apparatus comprising a rivet block , the rivet block comprising:a top end and a bottom end;a pin bore including a top end and a bottom end and is disposed within the rivet block, the pin bore extending from the top end to the bottom end of the rivet block, the pin bore to guide a rivet pin that slides downward within the pin bore to push a head of a rivet into a workpiece;a rivet feed bore including a top end and a bottom end and is disposed within the rivet block, the rivet feed bore extending from the top end to the bottom end of the rivet block, the rivet feed bore to accept the rivet at the top end of the rivet feed bore and guide the rivet to the bottom end of the rivet feed bore, the rivet feed bore intersecting the pin bore between the top end and the bottom end of the pin bore at an oblique angle.2. The rivet apparatus according to claim 1 , wherein the rivet is a first rivet claim 1 , the rivet pin is a first rivet pin claim 1 , the pin bore is a first pin bore claim 1 , and the rivet feed bore is a first rivet feed bore claim 1 , the rivet block further comprising:a second pin ...

ROTARY TOOL INCLUDING A COLLET

A collet for connecting a tool to a driver includes a shaft having an end. The collet includes a body including a first end that connects to the driver and a second end having an internal space partially defined by a frustoconical bore and a plurality of jaws disposed within the space. Each of the jaws includes a body having a frustoconical surface arranged to engage the frustoconical bore and an engagement member coupled to each body to move between an unlocked and a locked position. Rotation of the tool about the axis in a first direction biases the engagement member toward the unlocked position to allow movement of the tool with respect to the jaws, and rotation of the tool about the axis in a second direction opposite the first direction biases the engagement member toward the locked position wherein the tool is fixed with respect to the jaws. 1. A collet for connecting a rotary tool to a rotary tool driver , the rotary tool including a shaft having a shaft end and a shaft diameter , the collet comprising:a body including a first end arranged to connect to the rotary tool driver and a second end having an internal space at least partially defined by a frustoconical bore;a plurality of jaws disposed at least partially within the space, each of the jaws including a body having a frustoconical surface sized and arranged to engage the frustoconical bore and an engagement member movably coupled to each body to move between an unlocked position and a locked position, wherein rotation of the rotary tool about the shaft rotational axis in a first direction biases the engagement member toward the unlocked position to allow movement of the rotary tool with respect to the plurality of jaws, and rotation of the rotary tool about the shaft rotational axis in a second direction opposite the first direction biases the engagement member toward the locked position wherein the rotary tool is substantially fixed with respect to the plurality of jaws.2. The collet of claim 1 , ...

FASTENING TOOL

A fastening tool includes: a cylindrical rotation guide member extending in one direction and rotatably supported; a holding member having an opening to which a driver bit is detachably inserted, and configured to move in an axis direction along the extension direction of the rotation guide member inside the rotation guide member and to rotate together with the rotation guide member; and a moving member configured to move the holding member in a front and rear direction along the rotation guide member. 1. A fastening tool comprising:a cylindrical rotation guide member extending in one direction and rotatably supported;a holding member having an opening to which a driver bit is detachably inserted, and configured to move in an axis direction along the extension direction of the rotation guide member inside the rotation guide member and to rotate together with the rotation guide member; anda moving member configured to move the holding member in a front and rear direction along the rotation guide member.2. The fastening tool according to claim 1 , wherein the moving member comprises:a first moving member connected to the holding member and configured to rotate together with the holding member and the rotation guide member and to move in the axis direction along the rotation guide member, anda second moving member configured to rotatably support the first moving member and to move in the axis direction along the rotation guide member.3. The fastening tool according to claim 2 , wherein the moving member is configured such that the second moving member rotatably supports the first moving member via a bearing and the second moving member moves the first moving member in the axis direction via the bearing.4. The fastening tool according to claim 2 , wherein the rotation guide member has a groove portion extending in the axis direction claim 2 ,wherein the holding member and the first moving member are connected via a connecting member configured to enter the groove ...

SELF-ALIGNING DETACHABLE JAW OR FIXTURE PLATE FOR VISE-LIKE WORKHOLDING APPARATUS

A workholding apparatus comprises a base having a channel, two lower members each having a protrusion, and two upper members each having a cavity. Each lower member is coupled with an actuator placed inside the channel. Each upper member is removably coupled with a lower member by inserting the protrusion inside the cavity. The protrusions and the cavities include triangular regions having tilted sides. The upper members releasably engage the lower members by inserting the protrusions into the cavities. The lower members are coupled with an actuator which operates to move the lower members toward one another causing the upper members to generate a clamping, force. A mounting apparatus comprises two lower members and a single upper member, having similar protrusions and cavities, provides a mounting platform. 1. A workholding apparatus , comprising:(a) a base comprising a width, a length, and a height, thereby defining a three-dimensional orthogonal coordinate system having orthogonal x axis, y axis, and z axis, wherein the x axis is disposed substantially along the length and at ½ the width, wherein the y axis is disposed substantially along the width and at ½ the length, and wherein the z axis is disposed substantially along the height and at the intersection of the x axis and the y axis, said base comprising a channel along the x axis;(b) a first lower member comprising a first protrusion wherein the first protrusion comprises:(i) a first-lower-member planar top surface whose normal vector is substantially parallel to the z axis, said first-lower-member planar top surface comprising a substantially triangular first-lower-member region having two first-lower-member edges oriented substantially symmetrically at an edge angle with respect to the x axis; and(ii) two first-lower-member planar side surfaces along the two first-lower-member edges tilted inwardly by a tilt angle with respect to the z axis;(c) a second lower member comprising a second protrusion wherein ...

AIR CHUCK PROVIDED WITH LOCKING MECHANISM

A chuck mechanism operates a piston in a cylinder tube by using action of compressed air and opens and closes, by using a rod coupled to the piston, a pair of fingers, thereby gripping work W. The locking mechanism locks the fingers at work grip positions. The locking mechanism includes a first locking member, a second locking member, and a drive device. The first locking member is displaced when the pair of fingers are opened or closed. The second locking member retains the first locking member so as to lock the fingers at the work grip positions. The drive device relatively displaces the first locking member and the second locking member to locking positions and non-locking positions. 19-. (canceled)10. An air chuck provided with a locking mechanism , the air chuck comprising:a chuck mechanism that operates a piston in a cylinder tube by using action of compressed air and that advances and retracts a rod coupled to the piston so as to open and close a pair of fingers, thereby gripping work; anda locking mechanism that locks the pair of fingers at work grip positions; at least one first locking member that is displaced when the pair of fingers are opened or closed,', 'at least one second locking member that retains the at least one first locking member so as to lock the pair of fingers at the work grip positions, and', 'a drive device that relatively displaces the at least one first locking member and the at least one second locking member to locking positions where the at least one first locking member and the at least one second locking member are retained at each other and to non-locking positions where the at least one first locking member and the at least one second locking member are separated from each other, and, 'wherein the locking mechanism includes'}wherein the at least one first locking member and the at least one second locking member are displaced to the locking positions and the non-locking positions by relative rotation of the rod about an axial ...

CHUCK APPARATUS

Provided is a chuck apparatus enabling ease of rotation of a rotating cylinder in the loosening direction when replacing a tool, suppressed wear of the ratchet teeth, and a longer life span. Through the rotation of a rotating cylinder (), the chuck apparatus expands or contracts a plurality of jaws () inserted into a hole () provided to a tip end of a body (), and sandwiches and holds a tool () using the jaws (). An annular rotating body () screwed together with the jaws () and rotating together with the rotating cylinder () is fitted to the body () inside the rotating cylinder (). Annular ratchet teeth () are provided to the body () or the rotating body (), a detachable locking spring body () for locking with the ratchet teeth () is provided, and a lock release mechanism is provided for forcibly releasing the locking between the ratchet teeth () and the locking spring body () when a rotational force in a tightening direction is brought to zero after the rotating cylinder () has been rotated in the tightening direction and a holding force on the tool () has reached a predetermined value. 1. A chuck apparatus for expanding or contracting , by rotating a rotating cylinder , a plurality of jaws inserted into a hole provided to a tip end of a body , and sandwiching and holding a tool using the jaws; said chuck apparatus characterized in that an annular rotating body screwed together with the jaws and rotating together with the rotating cylinder is fitted to the body inside of the rotating cylinder; annular ratchet teeth are provided to the body or the rotating body; a detachable locking spring body for locking with the ratchet teeth is provided; and a lock release mechanism is provided for forcibly releasing the locking between the ratchet teeth and the locking spring body when a rotational force in a tightening direction is brought to zero after the rotating cylinder has been rotated in the tightening direction and a holding force on the tool has reached a ...

HAND-TIGHT DRILL CHUCK WITH LOCK

A hand-tight drill chuck with a lock and self-locking structure including an elastic piece with an arcuate portion, arranged on a ring member threadedly connected to a clamping claw. The two ends of the arcuate portion are restricted. The elastic piece has a locking portion and groove or protrusion that cooperate with teeth between two ends of the arcuate portion. The drill chuck has a rotation sleeve with control structure. The control structure includes a metal member with elastic portion having a protrusion or groove that cooperate with the groove or protrusion. When the groove or protrusion of the elastic piece withstands against and is engaged with the protrusion or groove of the metal member via elasticity, the drill chuck is in a self-locking state. This ensures a locking torque and unlocking torque by elastic match between an elastic force which is not slack. 1. A hand-tight drill chuck with a lock , comprising a drill body , a ring member , a clamping jaw and a self-locking structure , wherein the ring member has an internal thread while an outer side of the clamping jaw has a thread , the ring member and the clamping jaw are threadedly connected , the self-locking structure comprises a ring of teeth , a ring of the teeth is arranged on the drill body or arranged on a component fixed to the drill body; wherein the self-locking structure further comprises an elastic piece having an arcuate portion , an elastic piece is arranged on the ring member , both ends of the arcuate portion are restricted , the elastic piece is provided with a lock portion and a groove or a protrusion that cooperate with a ring of the teeth the elastic piece between the two ends of the arcuate portion , the drill chuck is provided with a rotation sleeve , and the rotation sleeve is provided with a control structure so that the self-locking structure is in a self-locking state or an unlocked state , the control structure comprises a metal member having an elastic portion , the elastic ...

Power Tong Apparatus and Method of Using Same

A power tong assembly has a transmission box having a plurality of speeds. A gear train completely encircles a rotary gear by including idler gears, fluid lines and actuating mechanisms within a tong door, which itself can be remotely operated. Cam roller assemblies can be inversely mounted into cage plates and a support race can be mounted into an opening, thereby eliminating the need to cut a groove in a rotary gear. Filler blocks can be inserted adjacent to gears to catch and redirect slung grease from gears back to said gears, while dampening noise and reducing the misuse of grease, thereby increasing effectiveness of lubrication. A make and break actuator assembly can be housed on the power tong body such that it is completely covered from external damage except when momentarily activated. A symmetric rotary gear, rotary gear inserts, cam shoe inserts and over-travel cam stops are provided.

Drill apparatus and drill chuck

A drill chuck and a drill apparatus is provided that includes a drilling machine, which has a motor and a machine spindle that is supported in rotary fashion in a machine housing. The a drill chuck is connected to the machine spindle and can be moved between a clamping configuration and a drilling configuration and has a clamping sleeve and a chuck body in which clamping jaws are movably guided by a threaded connection. When a sliding sleeve is moved relative to the chuck body between a first position that corresponds to the clamping configuration and a second position that corresponds to the drilling configuration, a flow of force traveling from the motor via the machine spindle to the threaded connection is shifted to a flow of force traveling from the motor via the machine spindle to the chuck body and vice versa.

MANDREL AND ACCESSORY FOR ROTARY TOOL

A rotary tool mandrel includes a shaft, locking projections, a collar, and a fastener. The shaft extends along a longitudinal axis and includes a distal end. The locking projections protrude radially relative to the longitudinal axis and positioned on opposite sides of the longitudinal axis from one another. Each of the locking projections define a locking projection outer profile that is rectilinear. The collar is coupled to the shaft and includes a pair of coupling projections protruding from a surface of the collar adjacent the distal end of the shaft. The coupling projections are angularly offset from the locking projections with respect to the longitudinal axis. Each of the coupling projections define a coupling projection that is rectilinear. The fastener is coupled to the shaft and movable relative to the shaft along the longitudinal axis, and movement of the fastener causes the locking projections to move toward the coupling projections. 1. A mandrel for a rotary tool , the mandrel comprising:a shaft extending along a longitudinal axis and including a distal end;a locking projection positioned adjacent the distal end of the shaft, the locking projection protruding radially relative to the longitudinal axis, the locking projection having a locking projection outer profile that is similar to a portion of a profile of a mating interface of an accessory;a collar coupled to the shaft, the collar including a coupling feature, the coupling feature having a coupling outer profile that is similar to the locking projection outer profile; anda nut threadably coupled to the shaft to move the nut relative to the shaft along the longitudinal axis, threading the nut causing the locking projection to move toward the coupling feature.2. The mandrel of claim 1 , wherein the locking projection includes a pair of locking projections positioned in a plane oriented perpendicular to a longitudinal axis of the shaft claim 1 , each of the locking projections having a rectilinear ...

DRILL CHUCK

A drill chuck comprises: a drill body () having a plurality of inclined guiding holes distributed evenly along a circumferential direction; a plurality of clamping jaws () arranged slidably in the inclined guiding holes respectively and having external thread segments (); an outer socket () rotatably fitted over the drill body; and a nut () engaged with the clamping jaws and connected to the out socket in a driving manner; further comprises: a locking mechanism located between a first thrust surface of the drill body and the nut and having a locking plate () and locking balls (), wherein an end face of the locking plate facing the nut is thereon provided with a plurality of slide grooves () having a helix angle, the helix angle of the slide grooves is less than a friction angle between the locking balls and locking plate, and the locking balls are movably arranged along the slide grooves. The drill chuck can prevent itself from loosening by a simple structure during operation. 1. A drill chuck , comprising:a drill body having a plurality of inclined guiding holes distributed evenly along a circumferential direction;a plurality of clamping jaws arranged slidably in the inclined guiding holes respectively and having external thread segments;an outer socket rotatably fitted over the drill body; anda nut engaged with the clamping jaws and connected to the outer socket in a driving manner;further comprising:a locking mechanism located between a first thrust surface of the drill body and the nut and having a locking plate and locking balls, wherein an end face of the locking plate facing the nut is thereon provided with a plurality of slide grooves having a helix angle, the helix angle of the slide grooves is less than a friction angle between the locking balls and the locking plate, and the locking balls are movably arranged along the slide grooves.2. The drill chuck according to claim 1 , further comprising:a nut socket fixedly connected to the nut and connected to the ...

ACTUATOR FOR A POWER TOOL

An actuator for use with a power tool is disclosed. The power tool includes a spindle-chuck body defining a tool axis and a collet nut surrounding the tool axis and rotatable about the tool axis. The collet nut is coupled to the spindle-chuck body. The actuator comprises a holder positionable to engage the spindle-chuck body and an actuation assembly including a first member positioned to engage the collet nut when the holder engages the spindle-chuck body and a second member operatively coupled to the first member to rotate the first member about a first axis. The second member is rotatable about a second axis non-parallel to the first axis. 1. An actuator for use with a power tool having a spindle-chuck body defining a tool axis and a collet nut surrounding the tool axis and rotatable about the tool axis , the collet nut being coupled to the spindle-chuck body , the actuator comprising:a holder positionable to engage the chuck body; andan actuation assembly including a first member positioned to engage the collet nut when the holder engages the spindle-chuck body and a second member operatively coupled to the first member to rotate the first member about a first axis, and the second member being rotatable about a second axis non-parallel to the first axis.2. The actuator of claim 1 , wherein the holder includes an opening configured to receive the spindle-chuck body.3. The actuator of claim 1 , wherein the holder has a first planar engagement surface adapted to contact a second planar engagement surface of the chuck body to prevent rotation of the chuck body.4. The actuator of claim 1 , wherein the holder is configured to maintain a stationary position of the spindle-chuck body and the actuation assembly is configured to adjust a position of a collet operably coupled to the collet nut relative to the spindle-chuck body.5. The actuator of claim 1 , wherein the first axis is parallel to the tool axis and the second axis is perpendicular to the tool axis.6. The ...

Hand-held Power Tool Comprising a Locking Device

A hand-held power tool includes a tool receiver that includes a tubular tool holder configured to lock an insert tool therein by an assigned locking device via at least one locking element. The locking device includes a pressure sleeve that is spring-loaded via an assigned spring element, and a stop sleeve, the stop sleeve having a contact surface on its inner circumference, and the spring-loaded pressure sleeve pressing the at least one locking element in a locking position against the contact surface. The tubular tool holder has at least one recess in which the at least one locking element in the locking position is located, at least portionally, the at least one recess having a ramp-type guideway. The at least one locking element is displaceable along the ramp-type guideway from the locking position to an unlocking position. 1. A hand-held power tool , comprising: a pressure sleeve that is spring-loaded via an assigned spring element, and', 'a stop sleeve, the stop sleeve having a contact surface on its inner circumference, and the spring-loaded pressure sleeve pressing the at least one locking element in a locking position against the contact surface, wherein', 'the tubular tool holder has at least one recess in which the at least one locking element in the locking position is located, at least portionally, the at least one recess having a ramp-type guideway, and', 'the at least one locking element is displaceable along the ramp-type guideway from the locking position to an unlocking position., 'a tool receiver that includes a tubular tool holder configured to lock an insert tool therein by an assigned locking device via at least one locking element, the locking device having'}2. The hand-held power tool according to claim 1 , wherein:the at least one locking element comprises a locking sphere of a predefined diameter; andthe ramp-type guideway is of a length that is greater than or equal to the predefined diameter.3. The hand-held power tool according to claim ...

Hand-held Power Tool Comprising a Locking Device

A hand-held power tool includes a tool receiver with a tubular tool holder and an assigned locking device. The assigned locking device includes a locking element configured to lock an insert tool in the tubular tool holder, a pressure sleeve that is spring-loaded via an assigned spring element, and a stop sleeve, the spring-loaded pressure sleeve configured to press the locking element in a locking position against the stop sleeve. The tubular tool holder includes at least one recess in which the locking element in the locking position is located, at least portionally. The stop sleeve has, on its inner circumference, at least one contact surface that is matched to an outer contour of the locking element such that a first surface contact between the at least one contact surface and the locking element is established in the locking position. 1. A hand-held power tool , comprising: a tubular tool holder,', 'an assigned locking device including at least one locking element configured to lock an insert tool in the tubular tool holder, a pressure sleeve that is spring-loaded via an assigned spring element, and a stop sleeve, the spring-loaded pressure sleeve configured to press the at least one locking element in a locking position against the stop sleeve, wherein, 'a tool receiver including'}the tubular tool holder includes at least one recess in which the at least one locking element in the locking position is located, at least portionally, andthe stop sleeve has, on its inner circumference, at least one contact surface that is matched to an outer contour of the at least one locking element such that a first surface contact between the at least one contact surface and the at least one locking element is established in the locking position.2. The hand-held power tool according to claim 1 , wherein:{'b': '250', 'the spring-loaded pressure sleeve has at least one receiver in which the at least one locking element () is received;'}a pressure surface is assigned to the at ...

Drill Chuck

Some embodiments of the present disclosure provide a drill chuck. The drill chuck includes: a drill body; jaws, partially disposed in the drill body, external threads being provided on an outer wall of the jaws; a locking member, disposed on the outer side of the drill body, the locking member being provided with internal threads, the locking member and the jaws being in threaded fit to enable the jaws to be movably disposed in the drill body; a driving assembly, disposed on an outer side of the locking member, the driving assembly being configured to drive the locking member to rotate, the driving assembly being disposed between a housing and the locking member, the housing driving the locking member to rotate by the driving assembly to enable the jaws to move in the drill body; and a locking structure, located between the housing and the jaws. 1. A drill chuck , comprising:a drill body;jaws, partially disposed in the drill body, the jaws being movably disposed in the drill body to realize clamping and unclamping, and external threads being provided on an outer wall of the jaws;a locking member, the locking member being disposed on an outer side of the drill body, the locking member being provided with internal threads, and the locking member and the jaws being in threaded fit to enable the jaws to be movably disposed in the drill body;a driving assembly, disposed on an outer side of the locking member, the driving assembly being configured to drive the locking member to rotate;a housing, the drill body, the jaws, the locking member and the driving assembly being disposed in the housing, the driving assembly being disposed between the housing and the locking member, and the housing driving the locking member to rotate by the driving assembly to enable the jaws to move in the drill body; anda locking structure, disposed in the housing, the locking structure being located between the housing and the jaws, the locking structure having a locking state and an avoiding ...

CHUCK SLEEVE FOR POWER TOOL

A power tool is provided and includes a housing, a motor, a gear case, a bearing assembly, and a chuck assembly. The motor is disposed in the housing and defines an axis of rotation. The gear case is coupled to the motor and includes a proximal end and a distal end. The proximal end of the gear case is coupled to the housing. The bearing assembly extends from the distal end of the gear case along the axis of rotation and supports a driveshaft for rotation about the axis of rotation. The chuck assembly is rotatably coupled to the driveshaft and includes a chuck sleeve annularly surrounding the bearing assembly about the axis of rotation. 1. A power tool comprising:a housing;a motor disposed in the housing and defining an axis of rotation;a gear case coupled to the motor, the gear case including a proximal end and a distal end, the proximal end of the gear case coupled to the housing;a bearing assembly extending from the distal end of the gear case along the axis of rotation, the bearing assembly supporting a driveshaft for rotation about the axis of rotation; anda chuck assembly rotatably coupled to the driveshaft, the chuck assembly including a chuck sleeve annularly surrounding the bearing assembly about the axis of rotation.2. The power tool of claim 1 , wherein the chuck sleeve includes a radially inwardly extending flange portion claim 1 , and wherein the bearing assembly is disposed between the flange portion and the distal end of the gear case along the axis of rotation.3. The power tool of claim 1 , wherein the flange portion is operable to prevent the chuck sleeve from moving relative to the chuck body along the axis of rotation.4. The power tool of claim 3 , wherein the chuck assembly includes a chuck body claim 3 , and wherein the flange portion is coupled to the chuck body.51. The power tool of claim 1 , wherein the chuck sleeve includes a proximal end and a distal end claim 1 , and wherein the distal end of the gear case and the proximal end of chuck ...

LOCKING CHUCK

A chuck includes a body having a nose section with an axial bore and a plurality of passageways formed therein, and a plurality of jaws disposed in the passageways. A nut for driving the jaws is rotatably mounted about the body and a sleeve defining a first recess and a second recess is rotatable with respect to the nut between a first rotational position and a second rotational position. An array of locking teeth is fixed to the body and a pawl member with an engagement portion is non-rotatably fixed to the nut. The engagement portion is received in the second recess and engages the locking teeth when the sleeve is in the second rotational position, the engagement portion being compressed so that an amount of force is exerted on the nut in the closing direction by the engagement portion. 1. A chuck for use with a manual or powered driver having a rotatable drive shaft , the chuck comprising:a generally cylindrical body having a nose section, a tail section and a center axis, the tail section being configured to rotate with the drive shaft and the nose section having an axial bore formed therein and a plurality of passageways formed therethrough and intersecting the axial bore;a plurality of jaws movably disposed in the passageways;a nut rotatably mounted about the body and in operative communication with the jaws so that rotation of the nut in a closing direction moves the jaws toward the center axis of the body and rotation of the nut in an opening direction moves the jaws away from the center axis;a generally cylindrical sleeve rotatably mounted about the body, the sleeve including an inner surface defining a first recess and a second recess, the sleeve being in operative communication with the nut so that the sleeve rotationally drives the nut but is rotatable with respect to the nut between a first rotational position and a second rotational position;an annular array of locking teeth non-rotatably fixed to the body; anda locking pawl non-rotatably fixed to the ...

DRILL CHUCK

A chuck including a body having a tail section and a nose section defining an axial bore. A plurality of jaws are movably disposed with respect to the axial bore and a nut is in threaded engagement with the jaws. A sleeve engages the nut so that rotation of the sleeve moves the jaws. A first ring defines a plurality of teeth and a second ring is rotatable relative to the nut over a limited arc and defines at least one pawl. In a first state, the second ring is non-rotatable relative to the first ring in both the opening and closing directions, and in a second state the first and second rings are rotatable about the body, and the second ring is rotatable relative to the first ring in the closing direction. 1a. a body having a nose section and a tail section;b. a plurality of jaws movably disposed with respect to the body;c. a nut rotatably disposed about the body, the nut engaging the jaws so that rotation of the nut causes the jaws to move with respect to the body;d. a sleeve rotatably mounted about the body and in driving engagement with the nut;e. a first ring defining a plurality of teeth disposed about a periphery thereof; and when the sleeve is in the first position with respect to the second ring, the first ring and the second ring are rotationally coupled to each other so that the first ring and the second ring are rotatable about the body, and', 'when the sleeve is in the second position with respect to the second ring, in which the jaws clamp onto the shank of the tool, the second ring is rotatable relative to the first ring in a closing direction so that the second ring rotates in the closing direction relative to the first ring and the body., 'f. a second ring that is rotatable relative to the sleeve over a limited arc between a first position and a second position, the second ring continuously engaging the plurality of teeth of the first ring so that,'}. A chuck for securing a tool with a shank to a manual or powered driver having a drive shaft, the ...

WAFER-TO-WAFER FUSION BONDING CHUCK

A chuck face of a wafer bonding chuck that includes a flat central zone and an outer annular zone contiguous to the central zone, the outer annular zone being lower than the flat central zone such that an annular edge portion of a wafer that is mounted to the chuck face has a convex profile with respect to the chuck face of the bonding chuck. The outer annular zone may move along an axis that is perpendicular to the central zone. The chuck face may include a plurality of contiguous zones, with at least one of the zones moveable with respect to another of the zones. 1. A chuck face of a wafer bonding chuck , comprising:a flat central zone; andan outer annular zone contiguous to the central zone, the outer annular zone being lower than the flat central zone such that an annular edge portion of a wafer that is mounted to the chuck face has a convex profile with respect to the chuck face of the bonding chuck.2. A bonding chuck in accordance with claim 1 , wherein the profile of the outer annular zone includes one or more of: a constant radius arc claim 1 , a variable radius arc claim 1 , and a linear portion.3. A bonding chuck in accordance with claim 2 , wherein the profile of the outer annular zone is shaped sufficient to disrupt a van der Waals bonding wave between a bonding surface of a first wafer mounted in the bonding chuck and a bonding surface of another wafer mounted in another chuck when the bonding chuck and the other bonding chuck are used in a van der Waals bonding process to form a van der Waals bond between a bonding surface of the first wafer and a bonding surface of the other wafer.4. A bonding chuck in accordance with claim 1 , wherein the profile of the outer annular zone at a radius corresponding to the extant radial dimension of a mounted wafer is lower than the flat central zone by between approximately 1 nm and approximately 100 microns.5. A chuck face of a wafer bonding chuck comprising:a flat central zone; andan outer annular zone contiguous to ...

AUTO SIZING CHUCK

A chuck includes a chuck body extending along a longitudinal axis, the chuck body including a plurality of slots each arranged at an oblique angle with respect to the longitudinal axis. A plurality of jaws each includes a first engagement portion, a jaw end, and a drive end. Each of the jaws is disposed within one of the plurality of slots and is movable between a close position and an open position. A biasing member is coupled to the plurality of jaws and is operable to bias the plurality of jaws toward the close position and a rotating assembly is selectively engageable with the plurality of jaws such that when engaged, the plurality of jaws are movable in response to rotation of the rotating assembly. 1. A chuck for a power tool , the chuck comprising:a chuck body extending along a longitudinal axis and defining an attachment end and a tool receiving end;a plurality of jaws, each of the jaws including a jaw end and a drive end, each of the jaws movable along a respective jaw axis between a closed position and an open position, each respective jaw axis oriented at an oblique angle relative to the longitudinal axis of the chuck body;a biasing member coupled to each of the jaws and operable to bias the plurality of jaws toward the closed position, the biasing member including a spring disposed radially between the longitudinal axis of the chuck body and the drive ends of the jaws; anda rotating assembly selectively engageable with the plurality of jaws such that, when engaged, the plurality of jaws are movable in response to rotation of the rotating assembly.2. The chuck of claim 1 , wherein the rotating assembly includes an engagement portion selectively engageable with each of the plurality of jaws.3. The chuck of claim 2 , wherein each of the jaws includes threads formed on a surface of each of the jaws claim 2 , and wherein the engagement portion includes threads adapted to engage the threads of the jaws.4. The chuck of claim 1 , wherein the biasing member ...

Gear Self-tightening Drill Chuck

A gear self-tightening drill chuck, comprising a rear pressing cover or a retaining ring, a rear body, a main body, a front sleeve, clamping jaws, and driven bevel gears; the rear body is arranged inside the main body; one end of the rear body is provided with a driving bevel gear, the large end thereof being arranged next to the rear body; the driving bevel gear is arranged inside the main body, and is engaged with the driven bevel gears; a plurality of driven bevel gears are arranged uniformly with the axis of the driving bevel gear as the centre line; the driven bevel gears have an inner screw thread; one end of the clamping jaw has an outer screw thread for use together with the inner screw thread; the main body is provided with clamping jaw holes and bevel gear holes. 1. A gear self-tightening drill chuck , comprising a rear pressing cover , a rear body , a main body , a front sleeve , a plurality of clamping jaws , and driven bevel gears in a same number as the clamping jaws ,wherein the rear body is arranged in the main body;a driving bevel gear is provided at one end of the rear body;a big end of the driving bevel gear is provided to be close to the rear body;a connection portion configured to be connected with an external device is provided at the other end of the rear body;the driving bevel gear is arranged in the main body, and is engaged with the driven bevel gears;the plurality of driven bevel gears are uniformly arranged around a center line which is an axis of the driving bevel gear;an inner hole of each of the driven bevel gears is provided with an internal thread;one end of each of the clamping jaws is provided with an external thread in cooperative use with the internal thread of the respective driven bevel gear;the main body is provided with clamping jaw holes capable of allowing the clamping jaws to pass therethrough and bevel gear holes configured to accommodate the driven bevel gears respectively;the main body has one end fixedly arranged in ...

HAND-HELD POWER TOOL AND CONTROL METHOD

A hand-held power tool having a machine housing, a motor, a shaft driven by the motor, and a tool socket. The tool socket is mounted on the shaft. The tool socket has a holding space to hold a tool and it has a clamping jaw situated in a link and projecting into the holding space. A carriage coupled to the clamping jaw is provided with a screw drive that has a thread on the carriage and a mating thread on the shaft. An actuation element movable between a first position and a second position is provided in order to select either the operational mode or else the loosening or tightening of the clamping jaws. A switchable coupling is mounted on the tool socket. The switchable coupling alternatingly engages either with the shaft or with the machine housing, depending on the positions of the actuation element. 111-. (canceled)12: A hand-held power tool comprising:a machine housing;a motor;a shaft driven by the motor;a tool socket mounted on the shaft and having a holding space to hold a tool, and having a clamping jaw situated in a link and projecting into the holding space;a carriage coupled to the clamping jaw and having a thread engaging into a mating thread of the shaft to form a screw drive;an actuator movable by a user between a first position and a second position; anda switchable coupling mounted on the tool socket and alternatingly engaging either with the shaft or with the machine housing, depending on the first and second positions of the actuator.13: The hand-held power tool as recited in wherein the tool socket is mounted on the shaft rotatably relative to the shaft.14: The hand-held power tool as recited in wherein the shaft is permanently coupled to the motor.15: The hand-held power tool as recited in wherein the shaft is connected directly to a gear or to the motor.16: The hand-held power tool as recited in wherein the shaft has teeth and the machine housing has machine housing teeth claim 12 , the switchable coupling having a movable element with at least ...

SELF-TIGHTENING CHUCK WITH A RADIAL LOCK

A drill chuck including a spindle portion with a pusher bore, a spindle bore, an annular array of teeth, and an annular groove defined by the outer surface of the first end. A body is rotatably disposed about the spindle portion and includes a central bore, an annular groove defined by the central bore, and a pawl pivotably mounted to the body for selectively engaging the annular array of teeth. A jaw pusher includes a threaded post and a head, the threaded post being disposed in the pusher bore and configured for axial motion. A jaw guide is disposed on the first end of the body and includes a plurality of jaw slots. A plurality of jaws is slidably received in the corresponding jaw slots and slidably received by the head of the jaw pusher. A plurality of bearing balls is received between the annular groove of the spindle portion and the annular groove of the body. The annular groove of the spindle portion and the annular groove of the body form a continuous pair of bearing races for the plurality of bearing balls. 1. A drill chuck for use with a powered driver , comprising:a spindle portion including a pusher bore on a first end, a spindle bore on a second end, and an annular array of teeth disposed about its outer surface;a body rotatably disposed about the spindle portion, the body including a central bore for receiving the spindle portion, and a pawl including an engagement end, the pawl being pivotably mounted to the body, the pawl being configured to selectively engage the annular array of teeth on the spindle portion;a spring disposed on the body, the spring biasing the engagement end of the pawl radially inwardly and extending along substantially an entire circumference of the body;a jaw pusher including a threaded post and a head, the threaded post being rotatably disposed in the pusher bore of the spindle portion; anda plurality of jaws, each jaw being slidably received by the head of the jaw pusher.2. The drill chuck of claim 1 , further comprising:an ...

DRILL CHUCK

A drill chuck has a chuck body having a plurality of angularly spaced and axially extending but angled guide grooves each holding a jaw that is axially displaceable between an axially front closed position and an axially rear open position. Each jaw has an outer edge formed with external teeth, and also has an axially rearwardly directed rear face extending at an acute angle to a plane perpendicular to the axis. A ring rotatable on the body about the axis has an internal screwthread meshing with the teeth, and an adjustment sleeve rotationally coupled to the ring is rotatable to move the jaws between the open and closed positions. A cover disk on the rear end of the body is formed with respective throughgoing chip-discharge holes each having an inner end aligned with a respective one of the grooves and an outwardly open outer end. 1. A drill chuck comprising:a chuck body extending along an axis and having a rear end formed with a drive-spindle seat and a plurality of angularly spaced and axially extending but angled guide grooves;respective jaws axially displaceable in the grooves between an axially front and radially closely spaced closed position and an axially rear and radially less closely spaced open position, each jaw having an inner edge adapted to grip a tool and an outer edge formed with external teeth, each jaw further having an axially rearwardly directed rear face extending at an acute angle to a plane perpendicular to the axis and inclined axially forward from the outer edge toward the inner edge;a ring rotatable on the body about the axis and having an internal screwthread meshing with the teeth;an adjustment sleeve rotationally coupled to the ring and rotatable to move the jaws between the open and closed positions; anda cover disk on the rear end of the body and formed with respective throughgoing chip-discharge holes each having an inner end aligned with a respective one of the grooves and an outwardly open outer end, whereby chips in the grooves ...

CHUCK ASSEMBLY FOR A ROTARY POWER TOOL

A method of operating a power tool chuck assembly includes inserting a tool bit within a central bore of a chuck body, displacing a plurality of jaws with the tool bit from an extended position to a retracted position, displacing the jaws from the retracted position toward the extended position with a spring, rotating a tightening sleeve about a rotational axis in a tightening direction, thereby imparting an axial displacement to the tightening sleeve relative to the chuck body, inwardly displacing a plurality of clamping nuts in a radial direction in response to engagement between a wedge defined on the tightening sleeve and the clamping nuts, causing respective threads on the clamping nuts and the jaws to engage, and applying a clamping force on the tool bit with the jaws in response to continued rotation of the tightening sleeve in the tightening direction. 1. A method of operating a chuck assembly for use with a rotary power tool , the method comprising:inserting a tool bit within a central bore of a chuck body, the bore defining a rotational axis;displacing a plurality of jaws with the tool bit, from an extended position to a retracted position, during insertion of the tool bit within the central bore;biasing the jaws, from the retracted position toward the extended position, after insertion of the tool bit within the central bore with a first spring;rotating a tightening sleeve about the rotational axis in a tightening direction, imparting an axial displacement to the tightening sleeve relative to the chuck body;inwardly displacing a plurality of clamping nuts in a radial direction in response to engagement between a wedge defined on the tightening sleeve and the clamping nuts, causing respective threads on the clamping nuts and the jaws to engage; andapplying a clamping force on the tool bit with the jaws in response to continued rotation of the tightening sleeve in the tightening direction.2. The method of claim 1 , wherein claim 1 , after engagement of the ...

CHUCK

A chuck for use with a driver having a rotatable drive shaft, the chuck including a body having a nose section and a tail section, the tail section being configured to rotate with the drive shaft and the nose section having an axial bore. A plurality of jaws is movably disposed with respect to the body and in communication with the axial bore. A first sleeve is rotatably mounted to the body in operative communication with the jaws so that rotation of the sleeve moves the jaws either toward a longitudinal center axis of the axial bore or away from the longitudinal center axis. A second sleeve is rotatably mounted to the body and is movable between a first position in which the second sleeve is rotatably fixed to the body and a second position in which the second sleeve is rotatable about the body. The second sleeve moves in a direction transverse to the longitudinal center axis of the axial bore when moving between the first position and the second position. 1. A chuck for use with a manual or powered driver having a rotatable drive shaft , said chuck comprising:a generally cylindrical body having a nose section and a tail section, the tail section being configured to rotate with the drive shaft, and the nose section having an axial bore formed therein;a plurality of first teeth rotationally fixed to the body;a plurality of jaws movably disposed in respective jaw passageways formed in the body and in communication with the axial bore;a nut rotatably mounted about the body and having threads that engage threads on the jaws so that rotation of the nut in a closing direction with respect to the body moves the jaws toward a longitudinal center axis of the axial bore and rotation of the nut in an opening direction with respect to the body moves the jaws away from the longitudinal center axis;a first sleeve rotatably mounted to the body and defining a camming surface, wherein an engagement between the first sleeve and the nut transfers torque from the first sleeve to the ...

DRILL SYSTEM, AN UPPER DRILL TOOL AND A LOWER DRILL TOOL FOR PRECISION FORMING OF OPENINGS IN A BRACKET, AND METHODS OF USE

An upper drill tool including a central chuck, an upper component, a lower component and a coupling assembly. The central chuck has a chuck base and a chuck structurally configured to retain a drill bit. The upper component is attached to the central chuck and has a lower stop surface. The lower component has a central body and an outer ring that threadedly engages the central body, with the outer ring having an upper stop. The coupling assembly is configured to facilitate the slidable movement of the lower component from a first orientation wherein the upper stop is spaced apart from the lower stop surface and a second orientation wherein the upper stop is in abutting engagement with the lower stop surface, with the first orientation and the second orientation defining a stroke. 1. An upper drill tool comprising:central chuck having a chuck base and at least one chuck, the at least one chuck structurally configured to retain a drill bit;an upper component coupled to the central chuck, the upper component having a lower stop surface; a central body with an outer surface, the outer surface having threads disposed thereon, the central body having a drill bit bore corresponding to each of the at least one chuck, to facilitate the passage of the drill bit therethrough, the bore terminating at a lower end of the central body; and', 'an outer ring having an inner surface, with the inner surface having outer ring threads positioned thereon, the outer ring threads matingly engaging the threads of the central body, the outer ring having an upper stop interfaceable with the lower stop surface of the upper component; and, 'a lower component havinga coupling assembly having a slidable coupling having a first end attached to the lower component and a second end attached to one of the central chuck and the upper component, the slidable coupling facilitating the slidable movement of the lower component from a first orientation wherein the upper stop is spaced apart from the lower ...

CHUCK DEVICE

[Problem] A chuck device capable of reliable locking with a simple structure is provided. 1. A chuck device to be attached to a driving device having a driving shaft rotatable on an axis , the chuck device comprising:a generally cylindrical chuck main body arranged on the axis and having a shaft hole at a front end side thereof, the shaft hole allowing insertion of a base shaft of a rotating jig;a plurality of chuck pawls which communicate with the shaft hole at the front end side in the chuck main body, which, at a rear end side, are inserted into a slanting hole opened in a side of the chuck main body, and which are arranged movably relative to the chuck main body;a nut ring which moves the plurality of chuck pawls in synchronization with each other in a slanting direction in the slanting hole by screwing with the chuck main body and the chuck pawls;a plurality of rolling bodies which roll while being sandwiched between the nut ring and the chuck main body;a retainer which holds the plurality of rolling bodies so as to be rolled while being aligned, the retainer being rotatable relative to the chuck main body and the nut ring;a first rotation restriction body configured to rotate together with the nut ring and to switch between a rotation restricted state in which rotation of the retainer in a loosening direction is restricted and a restriction released state in which a restriction of the rotation of the retainer in the loosening direction is released; anda second rotation restriction body which restricts the rotation of the retainer in the loosening direction relative to the chuck main body,whereinthe plurality of rolling bodies, the retainer, and the second rotation restriction body configure a bearing mechanism between the nut ring and the chuck main body, the bearing mechanism having rotation in a loosening direction being restricted, andthe retainer, the rolling bodies, and the first rotation restriction body in the rotation restricted state configure a lock ...

SELF-LOCKING DRILL CHUCK

A self-locking drill chuck is disclosed herein. Among the rotating sleeve, the spring leaf and the nut, the nut is rotated by the rotating sleeve without being driven by the spring leaf, the spring leaf is loaded on the nut to rotate with the nut synchronously, under normal state, the locking end of the spring leaf is in a closed state against the teeth, and the self-locking drill chuck is also provided with a state switching part which is connected with the rotating sleeve and rotates with the rotating sleeve synchronously; the spring leaf is provided with a state switching matching structure. The nut is directly driven by a rotating sleeve without the spring leaf during the rotating process in the clamping direction or the releasing direction, which can enhance the hand feeling and efficiency in the clamping operation; the spring leaf has self-locking functions which can be in normally closed and the elastic force is opposite to the centrifugal force, greatly enhancing the reliability of the drill chuck self-locking structure. 1. A self-locking drill chuck , comprising a rotating sleeve , a drill body , a nut , a clamping jaw , a self-locking structure , the self-locking structure comprises teeth and a spring leaf , the teeth are on the drill body or the part fixed on the drill body , and the spring leaf has a locking end matching with teeth , wherein ,among the rotating sleeve, the spring leaf and the nut, the nut is rotated by the rotating sleeve without being driven by the spring leaf, the spring leaf is loaded on the nut to rotate with the nut synchronously, under normal state, the locking end of the spring leaf is in a closed state against the teeth, and the self-locking drill chuck is also provided with a state switching part which is connected with the rotating sleeve and rotates with the rotating sleeve synchronously;the spring leaf is provided with a state switching matching structure, and the state switching part rotates a certain angle relative to the ...

Impact Tool Attachment

An impact tool attachment for an impact tool includes a chuck, a shaft and a screw. A first channel is axially positioned in a back face of the chuck. The first channel is right-handedly threaded. The shaft has a first end and a second end. The first end is complementary to the first channel. The second end is hexagonally shaped when viewed longitudinally. The screw is left-handedly threaded. A penetration is axially positioned in the first end of the shaft. The penetration is complementary to the screw. The shaft is threadedly couplable to the first channel and the screw is threadedly couplable to the penetration. The shaft is coupled to the chuck such that the second end is configured to couple the shaft to an impact driver. 1. An impact tool attachment comprising:a chuck;a first channel, said first channel being axially positioned in a back face of said chuck, said first channel being right-handedly threaded;a shaft, said shaft having a first end and a second end, said first end being complementary to said first channel, said second end being hexagonally shaped when viewed longitudinally;a screw, said screw being left-handedly threaded;a penetration, said penetration being axially positioned in said first end of said shaft, said penetration being complementary to said screw; andwherein said shaft is threadedly couplable to said first channel, wherein said screw is threadedly couplable to said penetration, such that said shaft is coupled to said chuck and such that said second end is configured to couple said shaft to an impact driver.2. The attachment of claim 1 , further including said chuck being keyless.3. The attachment of claim 1 , further including said chuck comprising:a fixed section, said fixed section being substantially cylindrically shaped;a rotatable section, said rotatable section being operationally coupled to said fixed section, said rotatable section having an interior face, said interior face being complementary to an inner face of said fixed ...

Self-Aligning Chuck

A chuck configured to be operably coupled to a power driver having a rotatable drive spindle is provided. The chuck () may include a body () having a center axis () and a plurality of clamping jaws () configured to clamp onto a working bit. The clamping jaws () may be configured to angularly translate relative to the center axis towards or away from a clamping jaw point of convergence () to close or open a working bit opening defined by the clamping jaws (). The clamping jaw point of convergence () may be on the center axis. The chuck () may also include a plurality of bit alignment jaws (). The bit alignment jaws () may be configured to maintain the working bit within the working bit opening by being configured translate towards or away from a bit alignment jaw point of convergence () that is on the center axis () and disposed rearward of the clamping jaw point of convergence (). 1. A chuck configured to be operably coupled to a power driver having a rotatable drive spindle , the chuck comprising:a body having a center axis about which the body rotates;a plurality of clamping jaws configured to clamp onto a working bit, the clamping jaws being configured to angularly translate relative to the center axis within clamping jaw passageways of the body towards or away from a clamping jaw point of convergence to close or open a working bit opening defined by the clamping jaws, wherein the clamping jaw point of convergence is on the center axis; anda plurality of bit alignment jaws, wherein the bit alignment jaws are configured to maintain the working bit within the working bit opening by being configured translate towards or away from a bit alignment jaw point of convergence that is on the center axis and disposed rearward of the clamping jaw point of convergence.2. The chuck of claim 1 , wherein each bit alignment jaw is disposed between two clamping jaws.3. The chuck of claim 1 , wherein each bit alignment jaw is configured to translate into the working bit opening in ...

DRILL CHUCK

A drill chuck having a chuck body connectable to a drilling spindle, in which are arranged clamping jaws in guide seats extending at an angle to the chuck axis, which jaws are movable for opening and closing via a threaded ring that is arranged to be rotatable and axially immovable relative to the chuck body. A locking device includes a coaxial ring of locking recesses as well as at least one locking element that is engaged in the locking recesses under the force of a locking spring. An adjusting ring rotatable to a limited extent between stops, the rotation of which adjusts the locking element. A detent device creating two detent positions in the circumferential direction. The threaded ring is designed as an undivided threaded ring with an opening width that is larger than the diameter of the axially forward section of the chuck body. Attached to the axially forward section of the chuck body in a rotationally fixed and axially immovable manner is a locking sleeve that carries the ring of locking recesses and serves to axially secure the threaded ring. 1. A drill chuck comprising:a chuck body connectable to a drilling spindle, the chuck body being arranged clamping jaws in guide seats extending at an angle towards the chuck axis, the clamping jaws being movable for opening and closing via a threaded ring that is arranged to be rotatable and axially immovable relative to the chuck body;a locking device having a coaxial ring of locking recesses;at least one locking element that is engaged in the locking recesses under the force of a locking spring;an adjusting ring adapted to be rotated to a limited extent between stops, the rotation of which adjusts the locking element; anda detent device creating two detent positions in a circumferential direction,wherein the threaded ring is an undivided threaded ring with an opening width that is larger than a diameter of an axially forward section of the chuck body, andwherein a locking sleeve, which carries the ring of the ...

LOCKING CHUCK

A chuck has a body (). A plurality of first teeth () are rotationally fixed to the body. At least one second tooth () opposes the first teeth. The first teeth and the at least one second tooth are configured so that engagement of the first teeth and the at least one second tooth prevents relative rotation between a nut () and the body in an opening direction. A sleeve () defines a notch () that engages a spring () so that in a relative rotational position between the sleeve and the nut, the notch receives the spring so that the notch resists relative rotational movement between the sleeve and the spring in the opening direction of the chuck. 1. A chuck for use with a manual or powered driver having a rotatable drive shaft , the chuck comprising:a body configured to rotate with the drive shaft and having an axial bore formed therein centered about an axis of the body;a plurality of first teeth rotationally fixed to the body;a plurality of jaws movably disposed with respect to the body in communication with the axial bore;an annular nut having threads formed thereon in engagement with threads on the jaws so that rotation of the nut about the body and the axis in a closing direction moves the jaws toward the axis and rotation of the nut about the body and the axis in an opening direction, opposite the closing direction, moves the jaws away from the axis; a first annular spring rotationally fixed to the nut and having a body that biases a first distal end of the first annular spring in a radial direction with respect to the axis and that extends over an angular width about the axis that is greater than 180° in a plane perpendicular to the axis, and wherein the first annular spring defines at least one second tooth at the first distal end opposing the first teeth, and', 'a second annular spring rotationally fixed to the nut and having a body that biases a second distal end of the second annular spring in a radial direction with respect to the axis and that extends over ...

CHUCK ASSEMBLY FOR A ROTARY POWER TOOL

A chuck assembly includes a chuck body rotatable about an axis, a plurality of jaws each received within a slot of the chuck body for co-rotation with the chuck body about the axis, a wedge engageable with an outer surface of each jaw, a pusher coupled to the plurality of jaws to bias the plurality of jaws in a forward direction into engagement with the wedge, and a tightening sleeve threadably coupled to the chuck body for relative rotation with the chuck body. The tightening sleeve includes a clamping surface engageable with the wedge for inwardly displacing the plurality of jaws in a radial direction, causing the plurality of jaws to secure a tool bit received within the chuck assembly, in response to rotation of the tightening sleeve relative to the chuck body in a tightening direction. 1. A chuck assembly for use with a rotary power tool , the chuck assembly comprising:a chuck body rotatable about an axis;a plurality of jaws each received within a slot of the chuck body for co-rotation with the chuck body about the axis;a wedge engageable with an outer surface of each jaw;a pusher coupled to the plurality of jaws to bias the plurality of jaws in a forward direction into engagement with the wedge; anda tightening sleeve threadably coupled to the chuck body for relative rotation with the chuck body, the tightening sleeve including a clamping surface engageable with the wedge for inwardly displacing the plurality of jaws in a radial direction, causing the plurality of jaws to secure a tool bit received within the chuck assembly, in response to rotation of the tightening sleeve relative to the chuck body in a tightening direction.2. The chuck assembly of claim 1 , wherein the pusher includes an end coupled to the plurality of jaws by a keyed arrangement such that each jaw is radially moveable relative to the pusher with respect to the axis.3. The chuck assembly of claim 2 , wherein the pusher includes a shank configured to be slidably received within an axial bore ...

IMPACT DRIVER HAVING AN IMPACT MECHANISM

In an impact driver including an impact mechanism for percussive driving of an output drive shaft on which is provided a tool receptacle for receiving an inserted tool, the tool receptacle is embodied as a clamping chuck, a permanent connection being embodied between the clamping chuck and the output drive shaft in order to prevent at least tool-free detachment of the clamping chuck from the output drive shaft. 1. An impact driver , comprising:an impact mechanism for rotary percussive driving of an output drive shaft on which is provided a tool receptacle for receiving an inserted tool;wherein the tool receptacle is a clamping chuck, a permanent connection being embodied between the clamping chuck and the output drive shaft to prevent at least tool-free detachment of the clamping chuck from the output drive shaft,wherein the impact mechanism includes a mechanical impact mechanism having a spring-loaded impact member having at least one input drive cam, the output drive shaft having at least one output drive cam,wherein the output drive shaft is embodied in at least two pieces and has an output drive stud and a cam member having at least one output drive cam, the output drive stud being fastened via a rigid connection on the clamping chuck and being connected nonrotatably to the cam member.2. The impact driver of claim 1 , wherein the output drive stud has claim 1 , at its axial end connected to the cam member claim 1 , a rotationally entrained member that engages in a rotationally secured manner into a rotationally entraining member correspondingly embodied on the cam member.3. The impact driver of claim 2 , wherein the rotationally entrained member is embodied in the manner of a polygonal contour on the external periphery of the output drive stud claim 2 , and the rotationally entraining member is provided in the manner of a polygonal opening on the cam member.4. The impact driver of claim 1 , wherein the cam member is fastened on the output drive stud via a ...

DRILL CHUCK

A drill chuck having a chuck body, having a clamping sleeve with a conical basic shape that can rotate about the chuck axis of the chuck body, by the rotation of which clamping sleeve a plurality of clamping jaws can be moved relative to the clamping body. The clamping sleeve is made in two parts, having a conical, metallic outer sleeve, having a conical, inner sleeve made of plastic, wherein the outer sleeve has a cylindrical subsection on its inner circumference for radial centering of the outer sleeve on the inner sleeve. A clamping sleeve and a method for producing knurling on the clamping sleeve are also provided. 1. A drill chuck comprising:a chuck body;a clamping sleeve with a conical shape that is rotatable about a chuck axis of the chuck body, via rotation of the clamping sleeve a plurality of clamping jaws are movable relative to the clamping body,wherein the clamping sleeve is made in two parts, having a conical metallic outer sleeve and having a conical inner sleeve made of plastic, andwherein the outer sleeve has a cylindrical subsection on its inner circumference for radial centering of the outer sleeve on the inner sleeve.2. The drill chuck according to claim 1 , wherein the cylindrical subsection is provided in duplicate and is implemented on an edge of the outer sleeve.3. The drill chuck according to claim 1 , wherein the cylindrical subsection is composed of an annular collar that is beaded radially inward at an axially forward edge and that engages an annular groove formed on the inner sleeve.4. The drill chuck according to claim 1 , wherein the clamping jaws are guided in a longitudinally movable manner in guide seats formed at an angle to the chuck axis and stand in engagement via external toothing with an internal thread of a threaded ring that is rotated by the clamping sleeve.5. The drill chuck according to claim 4 , wherein control cams are formed on the inner surface of the inner sleeve for moving the blocking element or the detent element ...

CHUCK MECHANISM

The chuck mechanism includes: a chuck body ; an axially movable plunger disposed inside the chuck body; and a master jaw radially movable by wedge action caused by fitting the plunger in the master jaw . A guide groove that radially guides the master jaw and has a T-shaped cross section is formed in the chuck body. The master jaw has a narrow portion and a wide portion that form a T-shaped cross section. A wedge fitted in a wedge groove of the plunger is formed radially inside the wide portion. The end face of the wedge in the width direction is positioned outward in the width direction with respect to the end face of the narrow portion in the width direction. 1. A chuck mechanism comprising:a chuck body;an axially movable plunger disposed inside the chuck body; anda master jaw that is disposed in an axially front face of the chuck body and is radially movable by wedge action caused by being fit with the plunger, whereina guide groove that radially guides the master jaw and has a T-shaped cross section is formed in the axially front face of the chuck body,the master jaw has a narrow portion and a wide portion that form a T-shaped cross section,a wedge projecting toward an axially rear side is formed radially inside the wide portion, and the wedge is fitted in a wedge groove formed in the plunger, andan end face of the wedge in the width direction is positioned outward in a width direction with respect to an end face of the narrow portion in the width direction.2. The chuck mechanism of claim 1 , wherein L≥⅓×Lis satisfied claim 1 , where a distance between the end face of the narrow portion in the width direction and the end face of the wedge in the width direction is represented by L claim 1 , and a distance between the end face of the narrow portion in the width direction and the end face of the wide portion in the width direction is represented by L.3. The chuck mechanism of claim 1 , wherein the end face of the wedge in the width direction is flush with the end ...

LOCKING CHUCK WITH ANTI-VIBRATION FEATURE

A chuck () for use with a powered driver having a rotatable drive shaft is provided. The chuck may include a body, a plurality of movable jaws (), a nut (), a sleeve (), and an anti-vibration assembly (). The anti-vibration assembly may be operably disposed between the sleeve and the nut and configured to absorb vibration caused by operation of the power driver and maintain a position of the sleeve relative to the nut when the sleeve is in at least a locked position. 1. A chuck for use with a powered driver having a rotatable drive shaft , the chuck comprising:a body having a nose section and a tail section, the tail section being configured to rotate with the drive shaft and the nose section having an axial bore formed therein and a plurality of passageways formed therethrough and intersecting the axial bore;a plurality of jaws movably disposed in the passageways;a nut rotatably mounted about the body and operably coupled with the jaws such that rotation of the nut in a closing direction moves the jaws toward an axis of the axial bore and rotation of the nut in an opening direction moves the jaws away from the axis;a sleeve rotatably mounted about the body, wherein the sleeve is operably coupled to the nut such that the sleeve selectively rotates the nut, wherein the sleeve is configured to rotate relative to the nut when transitioning between a locked position and an unlocked position; andan anti-vibration assembly operably disposed between the sleeve and the nut, wherein the anti-vibration assembly is configured to absorb vibration caused by operation of the power driver.2. The chuck of claim 1 , wherein the anti-vibration assembly comprises an elastic member affixed to a surface that rotates with the nut and is compressed against the sleeve.3. The chuck of claim 2 , wherein the elastic member is formed as a ring that encircles the nut.4. The chuck of claim 2 , wherein the elastic member comprises at least one pad affixed to a protruded portion of the nut that ...

LOCKING CHUCK

A chuck () has a body (), a plurality of jaws (), and a rotatable nut (). A sleeve () is rotatable between a first rotational position and a second rotational position with respect to the nut. An annular array of first teeth () are non-rotatable with respect to the body. One or more second teeth () are non-rotatable with respect to the nut and axially movable with respect to the body. When the teeth engage, they resist the nut's rotation in the opening direction. An engagement between the sleeve and the one or more second teeth moves the one or more second teeth out of engagement with the first teeth when the sleeve moves from the second rotational position to the first rotational position and moves the one or more second teeth into engagement with the first teeth when the sleeve moves from the first rotational position to the second rotational position. 1. A chuck for use with a manual or powered driver having a rotatable drive shaft , the chuck comprising:a body having a nose section, a tail section, and a center axis, the tail section being configured to rotate with the drive shaft and the nose section having an axial bore formed therein and a plurality of passageways formed therethrough and intersecting the axial bore;a plurality of jaws movably disposed in the passageways;a nut rotatably mounted about the body and in operative communication with the jaws so that rotation of the nut in a closing direction with respect to the body moves the jaws toward the center axis of the body and rotation of the nut in an opening direction with respect to the body moves the jaws away from the center axis of the body;a sleeve rotatably mounted about the body, the sleeve being in operative communication with the nut so that the sleeve rotationally drives the nut but is rotatable with respect to the nut between a first rotational position and a second rotational position;an annular array of first teeth that are non-rotatable about the center axis with respect to the body and ...

Tool attachment for a hand-held machine tool

A tool system having a hand-held machine tool including a tool holder for receiving an insert tool; and a mounting interface configured for mounting thereon: an angle attachment that includes an angle locking section for locking on the mounting interface and an angle drive unit; and an eccentric attachment that includes an eccentric locking section for locking on the mounting interface and an eccentric drive unit.

LOCKING CHUCK JAWS

A jaw for use in a drill chuck having a longitudinal center axis, comprising a chuck body which includes a jaw face formed on an inner surface of the chuck body and a plurality of teeth formed on an outer surface of the chuck body, the jaw face being substantially parallel to the longitudinal center axis. A ridge depends inwardly from the jaw face toward the longitudinal center axis. The ridge includes a tool engaging surface that is substantially parallel to the longitudinal center axis and has a width of between 0.020 to 0.060 inches. 1. A drill chuck having a rotatable drive shaft , comprising:a generally cylindrical body having a nose section, a tail section, and a longitudinal axis, the tail section being configured to rotate with the drive shaft and the nose section having an axial bore formed therein and a plurality of passageways formed therethrough and intersecting the axial bore; a body including a jaw face formed on a first surface of the body and a plurality of teeth formed on a second surface of the body that is on a side of the body opposite the first surface, wherein a first plane includes the longitudinal axis and a center axis of the passageway in which the jaw is received; and', 'a ridge depending from the jaw face toward the longitudinal center axis, the ridge including a substantially planar tool engaging surface that is disposed in a second plane that is parallel to the longitudinal center axis and perpendicular to the first plane,', 'wherein the tool engaging surface is disposed closer to the longitudinal center axis than the jaw face and the tool engaging surface, but not the jaw face, engages the shank of the tool when the tool is secured in the chuck;, 'a plurality of jaws disposed in respective said passageways movably with respect to the body and in communication with the axial bore for securing a shank of a tool in the drill chuck, each jaw comprising'}a nut rotatably mounted about the body such that rotation of the nut in a closing ...

Hend-Held Machine Tool

A hand-held power tool comprises a tool receiver, a drive spindle, and at least one active drive unit configured to drive the tool receiver via the drive spindle. The tool receiver and the drive spindle are moveable with respect to each other and connected in the circumferential direction via a form-fit connection.

CHUCK WITH LOCKING DEVICE

The chuck with locking device has a ratchet mechanism comprising a toothed ring () with asymmetrical teeth () fixed to an outer casing (), a ratchet ring () arranged such that it can slide but not rotate with respect to a base body () and provided with tabs () or teeth () providing ratchet interlocking elements, a release elastic element arranged under compression between the ratchet ring () and the toothed ring (), a locking ring () arranged adjacent to the ratchet ring () outside the base body () and fixed inside a locking control sleeve (), a cam groove () formed in the locking ring (), and a pin () inserted in the cam groove () and in a hole () formed in the base body (). The locking control sleeve () moves the locking ring () and the ratchet ring () between locking and unlocking positions. 1. A chuck with locking device , comprising:a base body having a central longitudinal axis and being connectable for rotating with a drive shaft;an outer casing coupled outside said base body such that it can rotate coaxially but not move axially with respect to the base body, said outer casing having an axial opening;a plurality of jaws arranged movably with respect to the base body and the outer casing communicated with said axial opening;a fitting mechanism linking movements of the outer casing to movements of the jaws, such that rotation of the outer casing with respect to the base body in a tightening direction moves the jaws towards said central longitudinal axis and rotation of the outer casing with respect to the base body in an opposite loosening direction moves the jaws away from the central longitudinal axis; anda locking device comprising a ratchet mechanism operated by a locking control sleeve coupled outside the base body such that it can rotate between angular locking and release positions in cooperation with a cam and an elastic element, where said ratchet mechanism, when said locking control sleeve is in said angular locking position, blocks relative rotation ...

AUTO SIZING CHUCK

A chuck for a power tool includes a chuck body extending along a longitudinal axis. The chuck also includes a plurality of jaws, each with a jaw end, and each movable along a respective jaw axis between a closed position and an open position. Each respective jaw axis is oriented at an oblique angle relative to the longitudinal axis. A biasing member is coupled to the jaws and is operable to bias the jaws toward the closed position. The biasing member includes a spring. The chuck also includes a rotating assembly selectively engageable with the jaws such that, when engaged, the jaws are movable in response to rotation of the rotating assembly. The biasing member includes a guide sleeve coupled to each of the jaws and movable axially along the longitudinal axis in response to each of the jaws moving along its respective jaw axis. 1. A chuck for a power tool , the chuck comprising:a chuck body extending along a longitudinal axis and defining an attachment end and a tool receiving end;a plurality of jaws, each of the jaws including a jaw end and a drive end, each of the jaws movable along a respective jaw axis between a closed position and an open position, each respective jaw axis oriented at an oblique angle relative to the longitudinal axis of the chuck body;a biasing member coupled to each of the jaws and operable to bias the jaws toward the closed position, the biasing member including a spring; anda rotating assembly selectively engageable with the jaws such that, when engaged, the jaws are movable in response to rotation of the rotating assembly,wherein the biasing member includes a guide sleeve coupled to each of the jaws and movable axially along the longitudinal axis in response to each of the jaws moving along its respective jaw axis.2. The chuck of claim 1 , wherein the rotating assembly includes an engagement portion selectively engageable with each of the jaws.3. The chuck of claim 2 , wherein each of the jaws includes threads formed on a surface of each ...

POWER DRILL

A drilling apparatus has a housing, a motor in the housing, a drive spindle rotatable about an axis on the housing, a chuck body, and a plurality of jaws shiftable in the chuck body. First and second elements interconnected by a screw thread and engaged between the body and the jaws for shifting the jaws on the housing. A drive sleeve rotationally fixed to the first element is drivable by the motor. 1. A drilling apparatus comprising:{'b': '1', 'a housing ;'}{'b': 37', '1, 'a motor in the housing ;'}{'b': 28', '37', '1', '29, 'a drive spindle rotatable by the motor about an axis A on the housing , axially shiftable between a drilling position and an adjustment position, and having at least one ring of external teeth forming a sun gear of a planetary-gear transmission;'}{'b': 26', '27', '28', '29', '29', '28', '27', '27', '26, 'a chuck sleeve forming a planet carrier of the transmission and formed with at least one ring of internal teeth surrounding the drive spindle and meshable with the at least one ring of external teeth , the external teeth of the spindle meshing in the drilling position with the internal teeth of the sleeve and being in the adjustment position out of mesh with the internal teeth of the sleeve ;'}{'b': 12', '26', '29', '28, 'at least one planet gear of the transmission carried on the chuck sleeve and meshing with the ring of external teeth of the drive spindle ;'}{'b': 7', '26, 'a plurality of jaws shiftable in the chuck sleeve and having external screwthread teeth;'}{'b': 5', '8', '13', '12', '6', '7, 'a drive sleeve , forming a ring gear of the transmission, meshing with the at least one planet gear , and having an internal screwthread meshing with the external screwthread teeth of the jaws ; and'}{'b': 26', '28, 'means for shifting the chuck sleeve and drive spindle relatively axially between the drilling position and the adjustment position.'}2. The drilling apparatus defined in claim 1 , further comprising{'b': 26', '28', '28, 'a spring ...

POWER DRILL

A power drill has a housing holding a motor and a drive member rotatable about an axis. An arbor extending along the axis outside the housing is rotationally coupled by complementary formations with the drive member. A tube shaft on which is fixed a chuck body holding a plurality of axially displaceable jaws. A sleeve in the tube shaft is rotationally coupled to the arbor. A pusher element braced axially forward against the jaws extends axially rearward into the sleeve, and interengaging screwthreads on the sleeve and pusher element axially displace the pusher element and the jaws on relative rotation of the sleeve and pusher element. A setting sleeve rotationally coupled to the rear end of the tube shaft is axially displaceable between a tightening position engaging a slip coupling on the housing and a drilling position disengaged from the slip coupling and rotationally coupled to the arbor. 1. A power drill comprisinga housing;a drive member rotatable about an axis in the housing;an arbor outside the power unit and coaxial with the drive member;complementary coupling formations between the shaft and the arbor rotationally coupling the shaft to the arbor;a drive shaft rotatable about the axis relative to the member;a chuck body rotatable about the axis and rotationally coupled to the drive shaft;chuck jaws movable in the chuck body;a sleeve rotationally connected with the arbor;a pusher element in the sleeve and bearing on the jaws;screwthreads between the sleeve and the pusher element for axially shifting the pusher element and the jaws on relative rotation of the pusher element and the sleeve; anda setting sleeve axially spaced toward the drill chuck from the drive member, permanently rotationally connected to but axially displaceable relative to the shaft, and shiftable between a drilling position and a tightening position in which adjustment of the chuck jaws is possible2. The power drill according to claim 1 , wherein the coupling formation of the drive member ...

CHUCK DEVICE AND COMPONENT MOUNTING MACHINE

A chuck device includes a plurality of types of chuck pawls clamping a component, a chuck pawl switching mechanism switching the chuck pawls in use among the plurality of types of chuck pawls in accordance with the type of the component to be clamped, and a driving mechanism allowing the chuck pawl switched by the chuck pawl switching mechanism to be put into a clamping operation. The chuck pawl switching mechanism is configured to use a cylindrical cam, the plurality of types of chuck pawls are placed at predetermined intervals around the cylindrical cam, a cam follower disposed in each of the chuck pawls is fitted into a cam groove in an outer peripheral surface of the cylindrical cam, and the respective chuck pawls are moved upward and downward independently of each other by the cylindrical cam being rotated. 1. A chuck device comprising:a plurality of types of chuck pawls clamping a component;a chuck pawl switching mechanism switching the chuck pawls in use among the plurality of types of chuck pawls in accordance with the type of the component to be clamped; anda driving mechanism allowing the chuck pawl switched by the chuck pawl switching mechanism to be put into a clamping operation.2. The chuck device according to claim 1 ,wherein the chuck pawl switching mechanism retracts the chuck pawl not used among the plurality of types of chuck pawls to a retraction position not interfering with the clamping operation of the chuck pawl in use.3. The chuck device according to claim 2 ,wherein the plurality of types of chuck pawls are supported such that the respective chuck pawls are moved upward and downward independently of each other, andwherein the chuck pawl switching mechanism lifts the chuck pawl not used to the retraction position and lowers the chuck pawl in use to a clamping operation position below the retraction position.4. The chuck device according to claim 3 ,wherein the chuck pawl switching mechanism is configured to use a cylindrical cam, the ...

Chuck structure

Provided is a chuck structure, which is configured to chuck an annular workpiece from a radially outer side of the workpiece. The chuck structure includes: leaf spring members arranged at a predetermined pitch along a circumferential direction of the chuck structure so as to be symmetrical with respect to a mechanism center axis; chuck claw members mounted to distal ends of the leaf spring members, respectively; and a pressing force applying mechanism configured to apply a force of pressing the leaf spring members radially inward, to thereby elastically press the chuck claw members onto a radially outer surface of the workpiece.

POWER TOOL CHUCK

A chuck for a power tool includes a body extending along a longitudinal axis, a central bore extending along the longitudinal axis and configured to receive a tool bit, a plurality of angled passageways defined in the body, and a plurality of jaws at least received in the passageways and moveable between an axially forward and radially inward clamping position to clamp a tool bit and an axially rearward and radially outward retracted position. At least one jaw has a rear end lying in a first plane transverse to the longitudinal axis. A first key drive member is coupled to a tail portion of the body and configured to be engaged by a second key drive member on an output shaft of a power tool to non-rotationally couple the body to the output shaft. The first key drive member extends axially from a rearward end to a forward end that lies in a second plane transverse to the longitudinal axis. The second plane is axially forward of the first plane when the jaws are in the retracted position. 1. A chuck for a power tool comprising:a body extending along a longitudinal axis and having a nose portion and a tail portion,a central bore defined in the body and open to the nose portion, the central bore extending along a longitudinal axis and configured to receive a tool bit;a plurality of angled passageways defined in the body in communication with the central bore, with each passageway disposed at an angle to the longitudinal axis;a plurality of jaws, each jaw at least partially received in one of the passageways, at least one of the jaws having a rear end lying in a first plane transverse to the longitudinal axis, the jaws moveable in the passageways between an axially forward and radially inward clamping position to clamp a tool bit received in the central bore, and an axially rearward and radially outward retracted position; anda first key drive member coupled to the tail portion of the body and configured to be engaged by a second key drive member on an output shaft of a ...

Chuck assembly for a rotary power tool

A chuck assembly, for use with a rotary power tool, includes a chuck body rotatable about an axis, a plurality of jaws supported by the chuck body for relative movement therewith between a retracted position for permitting insertion of a tool bit within the chuck body and an extended position for clamping the tool bit, a plurality of clamping nuts surrounding the chuck body and having interior threads engageable with corresponding threads on the respective jaws, a tightening sleeve surrounding and threadably engaged with the chuck body for relative rotation therewith, and a wedge defined on the tightening sleeve for selective engagement with the clamping nuts for inwardly displacing the clamping nuts, causing the respective threads on the clamping nuts and jaws to engage, in response to rotation of the tightening sleeve relative to the chuck body in a tightening direction.

DRILL CHUCK

A drill chuck having a chuck body that has a receptacle on its axially rearward end, having clamping jaws that can be moved relative to the chuck axis, and having a clamping sleeve that serves to move the clamping jaws. An adapter body can be placed in the receptacle and coupled in a torque-transmitting manner, which adapter body has an adapter receptacle for detachable connection to the drilling spindle of a power drill and has, in the wall of the adapter receptacle, at least one detent element that can be moved by a release sleeve. 1. A drill chuck comprising:a chuck body that has a receptacle on an axially rearward end;clamping jaws that are movable relative to a chuck axis; anda clamping sleeve that is adapted to move the clamping jaws; andan adapter body arrangable in the receptacle and coupled in a torque-transmitting manner, the adapter body having an adapter receptacle for detachable connection to a drilling spindle of a power drill and having in a wall of the adapter receptacle at least one detent element that is moveable by a release sleeve.2. The drill chuck according to claim 1 , wherein the chuck body and the adapter body are connectable by a threaded joint claim 1 , and wherein a drive insert is adapted to be pressed into the adapter body after the threaded joint is established to wedge threads and transmit torque from the drilling spindle.3. The drill chuck according to claim 2 , wherein the drive insert is non-round in cross-section and projects into the adapter receptacle.4. The drill chuck according to claim 1 , wherein a control cam is provided on an inner circumference of the release sleeve to bear against a detent element or a detent ball claim 1 , and wherein a return spring bears axially against the release sleeve.5. The drill chuck according to claim 4 , wherein the return spring braces against the clamping sleeve when the adapter body is attached to the chuck body. This nonprovisional application claims priority under 35 U.S.C. §119(a) to ...

SELF-LOCKING DRILL CHUCK

The present invention provide a self-locking drill chuck, its rotating sleeve is provided with a convex leaf spring fixed to a rotating sleeve at both ends, its nut or ring fixedly connected with the nut are provided with a first groove and a second groove matching with the convex portion of the leaf spring; the self-locking structure includes a ring tooth on the drill body and rotatable locking block arranged on the nut or ring fixedly connected to the nut, the nut or ring fixedly connected to the nut is provided with a leaf spring, the rotating sleeve is provided with a first part compressing the leaf spring and a second part compressing the locking block. This invention can achieve positioning matching between metals, which has a stronger holding force for maintaining self-locking state of the drill chuck, greatly enhancing the operating feel. 1. A self-locking drill chuck , comprising a drill body , a nut , a clamping jaw , a self-locking structure , a rotating sleeve , wherein the rotating sleeve is provided with a convex leaf spring fixed to a rotating sleeve at both ends , the nut or ring fixedly connected with the nut are provided with a first groove and a second groove matching with the convex portion of the leaf spring , the first groove is a groove corresponding to the drill chuck in the self-locking state , and the second groove is a groove converting from self-locking state to unlocking state corresponding to the drill chuck;the self-locking structure comprises a ring tooth on the drill body and rotatable locking block arranged on the nut or ring fixedly connected to the nut, the nut or ring fixedly connected to the nut is provided with a leaf spring, the rotating sleeve is provided with a first part compressing the leaf spring and a second part compressing the locking block, and by compressing the leaf spring via the first part, the leaf spring compresses the locking block, to rotate the locking block and engage with teeth on the drill body, drill ...

DRILL CHUCK FOR PREVENTING OVER-POSITION OPERATION

The present invention provides a drill chuck for preventing over-position operation, a drill body thereof is provided with an elastic switch part; the elastic switch part is matched up with the stepped surface in front of a clamping jaw thread, and can be pressed down under the action of the stepped surface when the clamping jaw retreats to and is close to a limit and can automatically upwarp and reset during being released; at the front end of the nut there is provided with a protrusion matching up with the elastic switch part, the protrusion can be in contact with the pressed elastic switch part during rotating with the nut, thereby forming a stop fit. The drill chuck play the role of switching operation through the self motion of the clamping jaw, and when the clamping jaw retreats to the bottom, the elastic switch part is pressed down by the clamping jaw and is matched up with the protrusion on the nut to limit nut to further rotate, thereby preventing operation over-position and having a protective effect on the drill chuck; in addition, the present invention is simple in structure, and is very convenient for manufacturing and assembling. 1. A drill chuck for preventing over-position operation , comprising a drill body , a clamping jaw and a nut , wherein the nut is connected with a clamping jaw thread , and the nut drives the clamping jaw to move forward or backward; the drill chuck is characterized in that the drill body is provided with an elastic switch part; the elastic switch part is matched up with a stepped surface in front of the clamping jaw thread , can be pressed down under the action of the stepped surface when the clamping jaw retreats to and is close to a limit , and can automatically upwarp and reset when the clamping jaw is released; at the front end of the nut there is provided with a protrusion matching up with the elastic switch part , the protrusion can be in contact with the pressed elastic switch part during rotating with the nut , so as ...

MACHINE FOR MACHINING PIPE ENDS, HAVING A CENTERING DEVICE FOR CENTERING A TUBULAR WORKPIECE IN RELATION TO AN AXIS OF ROTATION

The invention relates to a machine () for machining pipe ends. At least one centering device () is associated to said machine, which centering device centers a tubular workpiece () in relation to an axis of rotation (D) of the machine for machining pipe ends extending in the center of the machine, the tubular workpiece either being stationary in the case of a rotating tool head () or rotating in the case in which the tubular workpiece is fastened in the machine chuck (). Precise centering of the tubular workpiece () is quickly and simply achieved in that the centering device () has a clamping housing () that is open toward the axis of rotation (D), which clamping housing is designed comprising at least three means ( ) for contacting the tubular workpiece at the outer circumference and for clamping the tubular workpiece () in a centered manner, which means are circumferentially distributed and adjust mechanically independently of each other to the particular diameter of the workpiece () to be machined. 1. An apparatus for machining pipe ends with at least one centering device for centering on an axis extending through the center of the apparatus a tubular workpiece that is either rotated adjacent a stationary tool or is stationary while the tool head orbits when gripped in a machine chuck , whereinthe centering device has a body that is open toward the axis and that is provided with at least three angularly spaced and mechanically coupled centering jaws for synchronously contacting an outer surface of the workpiece to be machined and thereby centering of the tubular workpiece to be machined; andthe actuating body is carried on a pivot arm that can pivot an open side of the actuating body toward or away from the axis of the pipe-end machining apparatus.2. (canceled)3. The pipe-end machining apparatus according to claim 1 , wherein the actuating body is as a roller centering device that guides a rotating tubular workpiece and is carried on a locally fixed base frame so ...

SELF-LOCKING DRILL CHUCK

A self-locking drill chuck is disclosed herein; its rotating sleeve is provided with a convex leaf spring fixed on a rotating sleeve on both ends, its nut or the ring fixedly connected with the nut is provided with a first groove and a second groove matching with the convex portion of the convex leaf spring, and the self-locking structure includes a ring tooth on the drill body and a rotatable locking block disposed on the nut or ring fixedly connected to the nut; the nut or ring fixedly connected to the nut is also provided with a leaf spring, the rotating sleeve is provided with a first part compressing the leaf spring and a second part compressing the locking block. This invention can achieve positioning fit of metals, and self-locking and unlocking switching is realized by the lever, the interference phenomenon in the self-locking structure will not occur, which has a stronger holding force for the self-locking state of the drill chuck, greatly enhancing the operating feeling and increasing the self-locking force. 1. A self-locking drill chuck , comprising a drill body , a nut , a clamping jaw , a self-locking structure , and a rotating sleeve , wherein the self-locking structure comprises a ring tooth and a locking piece , the locking piece has a locking end engaged with the tooth , the locking piece is arranged at the part rotating with the nut , the ring tooth is arranged on the drill body or a part rotating with the drill body , the tooth face of the ring tooth is directed toward the front of the drill chuck , the rotating sleeve is connected with a part for driving the locking piece to allow the locking end of the locking piece to be inserted into the tooth of the ring tooth.2. The new self-locking drill chuck according to claim 1 , wherein the ring tooth is arranged on the end face of the first ring claim 1 , the first ring is nested outside of the drill body claim 1 , having interference fit with the drill body and being supported on the step of the drill ...

TOOL SEARCHING DEVICE

A chuck main body type and claw type deciding table and a pusher type deciding table are memorized in advance, information related to a leaded component such as component size, lead pitch, lead diameter, and component form is acquired, a combination of the chuck main body type and the claw type is searched from the chuck main body type and claw type deciding table using the acquired component size, lead pitch, lead diameter, and the like as search terms, the pusher is searched from the pusher type deciding table using the acquired component form or the like as a search term, and the search results are displayed. By this, it is possible to automatically select a tool made from a combination of multiple configuration members. 1. A tool searching device , which is used when gripping a leaded component and mounting the leaded component on a board by using a tool formed from multiple configuration members , for searching for the configuration member or a combination of the configuration members appropriate for gripping or mounting the leaded component on the board , the tool searching device comprising:a memory section configured to memorize multiple configuration member information related to each of the multiple configuration members, linked to size-related information that relates to a size of a component main body of the leaded component or lead-related information that relates to a lead of the leaded component;an acquiring section configured to acquire the size-related information or the lead-related information,a search section configured to search the configuration member or the combination of the configuration members from the memory section using the acquired size-related information or the acquired lead-related information as a search term; andan output section configured to output a search result.2. The tool searching device according to claim 1 , whereinthe configuration members include at least one of a tool main body, and a claw attached to the tool main ...

DRILLING CHUCK

A drilling chuck for operation on an impact drilling spindle, which can be subjected to tangential loading, with a chuck body, which is connected or connectable to the impact drilling spindle in which jaw guides are formed, which are arranged inclined to the chuck axis, in which clamping jaws are guided which can be adjusted by means of a threaded ring, with a clamping sleeve, which is coupled in a torque-transmitting manner to the threaded ring, and with a locking device, which is adjustable between a release configuration which enables a relative rotation of the threaded ring with respect to the chuck body, and a locking configuration which obstructs or prevents this relative rotation. The locking device is formed from a locking sleeve, which is essentially rotationally fixed but axially displaceable with respect to the chuck body, which locking sleeve comprises at least one locking member. 1. A drilling chuck for operation on an impact drilling spindle that is subjectable to tangential loading , the drilling chuck comprising:a chuck body connectable to the impact drilling spindle in which jaw guides are formed, which are arranged inclined to the chuck axis in which clamping jaws are guided that are adjusted via a threaded ring;a clamping sleeve coupled to the threaded ring in a torque-transmitting manner;a locking device that is adjustable between a release configuration, which enables a relative rotation of the threaded ring with respect to the chuck body and between a locking configuration, which obstructs or prevents the relative rotation,wherein the locking device is formed from a locking sleeve, which is mounted substantially non-rotating but axially displaceable with respect to the chuck body, the locking device comprising at least one locking member that the threaded ring or a part connected thereto is assigned at least one locking recess for receiving the at least one locking member, andwherein the at least one locking member is adjustable via a switching ...

Drilling chuck

A drilling chuck for operation on an impact drilling spindle, which can be subjected to tangential loading, with a chuck body, which is connected or connectable to the impact drilling spindle in which jaw guides are formed, which run inclined to the chuck axis in which jaw guides and clamping jaws are guided, which can be adjusted by a threaded ring, with a clamping sleeve, which can be coupled in a torque-transmitting manner to the threaded ring, and with a locking device, which is adjustable between a release configuration, which enables a relative rotation of the threaded ring with respect to the chuck body and a locking configuration, which obstructs or prevents this relative rotation. The locking device is formed from a locking sleeve, which is mounted essentially rotationally fixed but axially displaceable with respect to the chuck body, which comprises at least one locking member.