БОЛТОВОЕ СОЕДИНЕНИЕ ДЕТАЛЕЙ

Предложено болтовое соединение деталей. Оно включает изготовление болта, установку болта в отверстие деталей и затягивание гайкой, при этом болт изготавливают из головки и стержня отдельно, стержень выполняют с конусным участком на одном конце стержня и с цилиндрическим с нанесенной резьбой участком на противоположном конце стержня. Конусный и цилиндрический участки стержня сопряжены радиусной поверхностью, а угол конуса, расширяющегося к концу стержня участка, противоположного участку с резьбой, выполняют равным 6-15°; головку высотой h=(0,65-1)d(диаметра стержня) выполняют с конусным сквозным отверстием, угол конуса отверстия в головке выполняют соответствующим углу конуса расширяющегося участка стержня. После этого стержень вставляют в конусное отверстие головки до соприкосновения конусных поверхностей стержня и головки и вводят собранный болт в отверстие соединяемых деталей и производят соединение деталей путем установки и затягивания гайки. При этом по образующей конусной поверхности ...

ШУРУП С ЗЕНКЕРОМ ДЛЯ ДЕРЕВЯННЫХ КОНСТРУКЦИЙ

Полезная модель относится к резьбовым крепежным изделиям и применяется преимущественно в деревянном строительстве, производстве для скрепления деревянных деталей между собой. Шуруп для соединения деревянных деталей, выполненный в виде стального цилиндрического стержня (1, 2, 5), имеющего с одной стороны шлицевую головку (6), переходящую в гладкий стержень (2) через короткий участок стержня (5) большего диаметра, чем гладкий стержень в многолезвийный зенкер (4), который в свою очередь переходит в резьбовую часть стержня, проходящую вдоль тела стержневого основания (1) до конусообразного острия с одновитковой резьбовой частью, имеющей широкий (крупный) шаг высокого витка до 68 мм и угол в пределах от 40 до 45 градусов с выходом окончания витка на кончик острия. 7 з.п. ф-лы, 2 ил.

УСТРОЙСТВО ДЛЯ КРЕПЛЕНИЯ ПРИБОРОВ К МНОГОКАМЕРНЫМ ПРОФИЛЯМ

... 1. Устройство (1) для крепления приборов (4) на многокамерных профилях (5), которое имеет монтажный винт (2) и крепежный винт (3), при этом монтажный винт (2) имеет наружную резьбу (11), опорный буртик (13), расположенный на заднем конце относительно направления ввода, внутреннюю резьбу (19) и поверхности (10) под монтажный инструмент, и при этом крепежный винт (2) может быть ввинчен во внутреннюю резьбу монтажного винта (2), отличающееся тем, что опорный буртик (13) имеет внешний периметр (16), который с центрированием и с зацеплением входит в отверстие (15) прибора (4). 2. Устройство по п.1, отличающееся тем, что периметр (16) опорного буртика (13) имеет зубцы (16). 3. Устройство по п.2, отличающееся тем, что диаметр окружности головок зубцов (16) на опорном буртике (13) больше, а диаметр окружности впадин зубцов (16) меньше, чем диаметр отверстия (15) в приборе (4). 4. Устройство по п.1, отличающееся тем, что внутренняя резьба (19) расположена в монтажном винте (2) сзади по направлению ...

СТОПОРНОЕ КОЛЬЦО И РЕЗЬБОВАЯ ШПИЛЬКА

... 1. Стопорное кольцо (26) для крепления резьбовой шпильки (15) к первому элементу (2), и отличающееся тем, что содержит:- первую поверхность (30), определяющую упомянутое кольцо (26) на стороне, являющейся обращенной к первой оси (С) симметрии упомянутого кольца (26); и- вторую поверхность (31), определяющую упомянутое кольцо (26) на стороне, противоположной упомянутой первой оси (С);отличающееся тем, что упомянутая первая поверхность (30) является гладкой до вставки внутрь упомянутого первого элемента (2); зубчатый отпечаток (27) формируется на упомянутой первой поверхности (30), когда она надевается с усилием на зубчатый участок (19) упомянутой резьбовой шпильки (15);упомянутая вторая поверхность (31) является конической и выполненной с возможностью интерференционного вставления, при использовании, внутрь упомянутого первого элемента (2).2. Кольцо по п.1, отличающееся тем, что упомянутая вторая поверхность (31) симметрична относительно упомянутой первой оси (С).3. Кольцо по п.1 или 2, ...

Aufnahmeelement

Aufnahmeelement, enthaltend einen Bolzen (2), welcher eine zu einer Längsachse (20) im wesentlichen parallele, insbesondere koaxiale Außenfläche (18) aufweist und welcher in eine Bohrung eines Bauteils bevorzugt wenigstens zweier Bauteile einführbar ist, dadurch gekennzeichnet, dass der Bolzen (2) aus verschleißfestem Sinterwerkstoff besteht oder solchen enthält, dass am vorderen Ende des Bolzens (2) eine Spitze (4) aus Metall angeordnet ist, deren Endteil (6) in eine Ausnehmung (8) des Bolzens (2) eingreift, und dass in dem am vorderen Ende des Bolzens (2) vorgesehenen Verbindungsbereich eine direkte Verbindung zwischen dem Endteil (6) und der Ausnehmung (8) besteht.

Quick action assembly screw - has thickened neck in blank adjacent to head accommodating fixing device recess

The quick-action assembly screw has a self-tapping thread formed by cold or hot-shaping and extending as far as the head. A recess in the top of the head accommodates the boss of a fixing device, e.g. a screw head cover. The shank of the screw blank (1), without thread, has a thickened neck (9) immediately adjacent to the head (2), to accommodate the recess (5). The finished screw, with thread, has a constant dia. for the whole length of the screwed portion. The base of the thread groove can be of greater dia. at the neck than elsewhere.

Funktionselement in Form eines Einpresselements

Die vorliegende Erfindung betrifft ein Funktionselement in Form eines Einpresselements zur Befestigung an ein Blechteil, wobei das Funktionselement einen Kopfteil und einen Schaftteil aufweist, der Kopfteil auf der dem Schaftteil zugewandten Seite eine ringförmige Blechanlagefläche und innerhalb dieser ringförmigen Blechanlagefläche eine ringförmige axiale Vertiefung aufweist, die am Übergang des Kopfteils in den Schaftteil diesen umgibt. Erfindungsgemäß weist der Schaftteil mehrere umfangsmäßig verteilte, sich in axialer Richtung erstreckende radiale Vertiefungen und dazwischen ebenfalls axial erstreckende und radial hervorstehende Nasen auf, wobei an den Stellen der radialen Vertiefungen, an deren dem Kopfteil zugewandten axialen Enden Materialerhöhungen vorliegen, die im Bereich der ringförmigen Vertiefung mit dem Kopfteil Hinterschneidungen bilden.

Nail has point at front and point at rear, and rectangular plate is located in middle of double-pointed nail to aid hammering in of nail, and has hammering sleeve slipped over section of double nail to effect hammering in of nail

The nail has a point (1) at the front and a point (2) at the rear. A rectangular striking plate (3) is located in the middle of the double-pointed nail to aid the hammering in of the nail. A hammering sleeve is slipped over a section of the double nail to effect hammering in of the nail. The sleeve is made of hardened and magnetized metal. The double point nail is manufactured from materials from existing available nail and screw production and in existing available sizes. Independent claims are also included for the following: (a) a nail and screw combination; (b) a nail and thread combination; (c) a nail and eye combination; (d) a nail and hook combination; (e) a hammering sleeve; and (f) a keyed pin as a screwing in aid for the double point.

Improvements in shackle bolts and the like

... 191,530. Guy, S. S. Nov. 7, 1921. Oil-hole closures.-The head 5 of a shackle bolt 2 forming a reservoir 6 for lubricant has the filling orifice 9 closed by a spring clip 10. The clip is retained in place by integral flanges on the head or by making the head of curved form as shown in Fig. 4. Where an oil hole 19 is provided in the clip it is preferably diametrically opposite the detent 11 so that water which creeps under the clip edges is prevented from being carried round to the oil hole in the head on rotation of the clip.

Connecting bolt assembly

... 1,067,304. Nuts and bolts. KIELER HOWALDTSWERKE A.G. Feb. 10. 1966 [Feb. 15, 1965], No. 5857/66. Heading F2H. A connecting bolt for supporting thin-walled tanks for liquid gas on a ship comprises a bolt (3) made of an elastic heat-insulating material, such as polamide, formed at one end with a tapped hole (9) and having an external thread (10) at its opposite end. The bolt is fixed by its tapped hole to a wall bolt (2) on the ship's side (1) and a nut (7) formed with a disc (6) is screwed to the thread (10). The disc (6) is then welded to wall (5) of the tank. Insulating material (8) lies between the walls of the tank and ship.

Coupling and repair sleeves for submerged pipe lines

... 727,714. Devices for coupling and repairing leaks in pipes. DRESSER INDUSTRIES Inc. Sept. 21, 1953 [Sept. 26, 1952 ; Sept. 26, 1952], No. 25950/53. Classes 99 (1) and 99 (2). A sleeve 20 comprising complementary segments 22, 24 and providing a fluid-tight enclosure for a portion of a submerged pipe 30 is installed by attaching lines 68, Fig. 4, to the segment 24 and lowering and drawing that segment into contact with the underside of the pipe, Fig. 6, and then, using the lines as guides, lowering the segment 22 into contact with the upper side of the pipe and securing the segments together, e.g. by bolts and nuts 43, 44. As shown in Fig. 1, the lines 68 are attached to sockets 70 screwed onto the bolts 43, and as shown in Fig. 4, the segment 24 is lowered by the lines attached to one side of the segment, those lines on the lower side of the segment being allowed to fall freely and then being drawn under the pipe and returned to the surface of the water. The segment 22 may be provided with ...

Self tapping screw having two threads of differing pitch

A self tapping screw has a screw head (101), a screw shaft (102) and a screw tip (103). Two thread sections (105, 107) are formed on the screw shaft (102) which are separated by a thread free section (106) where the threads of the two thread sections (105, 107) have differing pitches. One option is that the pitches are opposite, the other is that the section (105) nearer the head (101) has greater pitch and is a multiple thread.

Improvements in or relating to screws or connections for securing joints between wood and other solid substances

... 541,345. Bolts bolting;; wood-screws OSMOND, G. E. May 22, 1940, No. 9097. Addition to 521,842. [Classes 89 (i) and 89 (ii)] [Also in Groups XXII and XXIII] In making joints as described in the parent Specification the parallel headless screws are tubular in form so that they may serve also as bushes or for the passage of electric conductors &c. The ends may be notched at C to render the screws, self-tapping. The screws may be formed by corrugating thin metal tubing. The screws may be inserted by a tommy bar with a cross pin G to engage notches E or with a screwed end terminating in an abutment shoulder for use with the corrugated screws.

Fastener device

The fastener device comprises a tubular member (30) which is taken through aligned holes in two parts (31, 32) which are to be fastened together, and which is slotted so as to be radially expandible by an externally threaded core member (38) which extends through the tubular member (30) and engages an internally threaded core head (37) to draw the latter into the tubular member (30) when the core member (38) is rotated. Lugs project from the core head (37) to engage in the slots in the tubular member (30) to prevent rotation of the core head (37). A resilient retaining ring (40) engages the outer periphery of the tubular member (30) and the lugs to hold the core head (37) in assembly with the tubular member (30) prior to use. ...

Screw assembly for attachment of constructional members to masonry

... 1,015,688. Woodscrews; screws; screwsockets; anchor-nuts; covers for screw-holes. A. FISCHER. Aug. 14, 1962 [Oct. 25, 1961], No. 31217/62. Addition to 1,015,687. HeadingF2H. A headless screw having a narrow threaded part 3a for screwing into a plug 4 to be received in a bore 2a in a wall 2 and a wider threaded part 3b for screwing into an internally-threaded socket 5 is used with the socket to attach a board 1 to the wall 2. A nut 6 on an external thread 5a on the socket holds it in the board. Since the threads 3a, 3b are of the same pitch, the spacing of the board 1 from the wall 2 is maintained. A cap 7 is fitted in the end of the bush 5 to cover the end of the screw.

Two-piece rivet

A two-piece rivet assembly comprising a shank member and a collar. The shank member includes a head, a cylindrical shank, and a helical thread with a substantially constant pitch, but with a crest diameter which decreases as it extends away from a maximum adjacent to its end farthest from the shank. The ring-like collar has an inner wall, an outer wall, and a first and a second end. The inner wall defines a passage between the ends to receive at least a portion of the thread. With the shank placed in an aperture in a workpiece with at least a portion of the thread projecting beyond a surface of the workpiece, the collar is placed over the thread and a swaging setting force is applied. This force applies both axial and radial components to the collar. This forces the collar against a surface of the workpiece and swages the wall into the thread at its maximum diameter and then continuously along the thread, exerting a tensile force on the shank member.

WALL CONSTRUCTION

... 1349378 Self-tapping screws AMERICAN METAL CLIMAX Inc 7 May 1971 [1 June 1970] 13772/71 Heading B3N [Also in Division E1] Self-tapping screws 65, for use in interconnecting horizontal and vertical frame members of, e.g. glazed walls, each have a threaded shank 66 with thread sections removed along two opposed sides to provide flattened sides 68. The shank co-operates with a channel 55 formed inside a hollow aluminium member 50, the opposed flanges 57 and 58 of the channel having opposed arcuate grooves 61 formed therealong. The screw is inserted into the end of member 50 to a required depth and then turned through a quarter turn to the position illustrated in Fig. 13 (not shown). The head of the screw is shaped as shown to sit with its inner shoulder 70 on the rim of a hole in one face of a hollow vertical frame member.

IMPROVEMENTS IN AND RELATING TO BOLTS

FASTENER FOR BUILDING CONSTRUCTION

... 1453904 Anchoring bolts by axial thrust; pins R J HADAWAY 30 July 1974 [30 July 1973] 34280/74 Heading F2H A fastener to be inserted in a previouslydrilled hole by axial force alone applied to one of its ends includes a shank 1 having indentations, e.g. thread 2, in its outer surface and a coating 4 of tough dense resilient material bonded to the shank, filling the indentations and forming a continuous layer over at least part of the indented area on the shank. When the fastener is hammered into a hole whose diameter just accepts the major diameter of the thread 2, the coating 4 is compressed and grips the walls of the hole to anchor the fastener. If the fastener has a slotted or hexagonal head 8, it may be subsequently screwed out from the hole. In the embodiment shown in Fig. 2 the thread 2 extends along the entire length of the shank and beyond the coating 4 and is engaged by a nut 5 to fasten an object to a wall in which the hole is drilled. A set screw 6 may engage in an internally ...

Improved screwed fastening system for railway rails

TWIST AND PRESS OUT SURELY INTO A SHEET METAL OF INSERTIONCASH PINS

WANDKONSTRUKTION

SCREW, PREFERABLY TAPPING SCREW WITH A COUNTERSUNK HEAD

VERSCHLUSSVORRICHTUNG, IN PARTICULAR FUER COVER OF TURNING RECEIVERS.

FASTENING PART FOR DRIVING INTO HARD MATERIALS.

WALL CONSTRUCTION

SCREW TO THE SPACER DISTANCE FROM COVER PLATES OR RAILS AT AN UNDERBODY

BARBED FASTENER RESISTING WITHDRAWAL

Fastening element for hard constructional components

A bolt

A bolt (10) for securing timber to any other material, comprises: a bolt head (101) with a series of spiked teeth (102) on its underside; a cylindrical bolt rod (103) extending from the bolt head (101) is threaded and split into two rods (105 a,b) at its free end, so as to define a slot (106) therebetween. In use a user drills a hole through pieces of timber to be secured together, and hammers the bolt through the hole. The spiked teeth on the bolt head lock into the timber, securing the bolt at one end. At the free, split end of the bolt rod, a washer and nut are tightened onto the bolt. A cold chisel is hammered into the slot between the split ends of the rod, bending the ends outwards and thus preventing the nut from loosening.

A bolt for use in an electrical connector

Flexible threaded fastener

Male anti-false thread fastener member

A male anti-false thread fastener member (10) having features, including: a shank that has a lead end and a tool engagement end; a head formed at the tool engagement end of the shank; at least one male fastening thread (15) formed on the exterior of the shank as a plurality of thread windings adapted to mate with a corresponding female fastening thread formed in an interior of a female fastener member; at least one male lead thread (17) formed on the exterior of the shank at the lead end that is at least a half winding around the shank and comprises curved profile defined by an arc having a radius (R) approximately equal to a radius of an arc that is tangent to both flanks of a thread profile of the at least one male fastening thread (15) and below the pitch line of the at least one male fastener thread (15).

IMPROVEMENTS RELATING TO ANCHOR BOLTS AND METHODS OF INSTALLING SAME

Apparatus for repairing cracks

FORMWORK SYSTEM FOR SLIP FORM CASTING

A formwork system for use in slip form casting central cores of high rise buildings provides a rebate form for a rebate at the level of each floor slab which is subsequently to be cast. The rebate form is designed to carry ferrules to be cast into the core at the level of the rebate to provide anchoring points for incorporation of reinforcement associated with the floor slab. The ferrules are carried from the rebate form via plugs which are stripped from the ferrules after casting when the rebate form and main slip form to which it is attached is withdrawn.

FASTENER FOR ASSEMBLY AND DISASSEMBLY

A fastener (12) assembly for joining a first element (13) such as a circuit board to a second element such as a casing includes a first component (19) which has a pin (20) and a second component (24) which includes a cavity (28) for receiving at least part of the pin (20). Either the first component or the second component is made of a material adapted to change from a first shape to second shape at a particular temperature. The pin (19) of the first component is adapted to be locked into the cavity (28) of the second component when the second shape is attained through interaction of the material with the cavity. The heating means such as resistors (14) for generating the particular temperature may be included in the first element.

FASTENER ASSEMBLY FOR ROCKER ARM COVER

Case 5030 A fastener assembly adapted for use in connection with a first and second apertured workpiece, said fastener assembly comprising a fastener, washer and rubber grommet, said fastener having a head, and a shank; said shank including an upper shank portion a lower threaded shank portion and a pair of wings spaced between said upper unthreaded shank portion and lower threaded shank portion; said washer and rubber grommet being telescopically associated with said fastener.

WATER BAR

FASTENING MEMBER FOR SECUREMENT INTO HARD MATERIALS

A fastening member to be driven into a hard receiving material, such as concrete, masonry, rock and the like, has an axially extending shank with a drilling head at its leading end and a thread adjacent its trailing end for connecting a load to the fastening member. A device is located on the shank for engagement with a tool for driving the fastening member into the receiving material. Initially, the fastening member drills a blind bore into the receiving material and then an explosive powder charge drives the member into its final position.

NUCLEAR CORE REGION FASTENER ARRANGEMENT

METAL TO METAL FASTENER

A fastener (100) includes a shank (102) having a diameter (D2) including a helical thread (125) and a cutting tip (116). The fastener (100) includes a head (140) having an integral washer (145) and nut (142). The washer (145) has a diameter (d) and a thickness (t), wherein a relation of the diameter to the thickness is established through a shape factor greater than 0.55, the shape factor for the thickness (t) greater than 0.06 inches being d*(l+2.5t)*t(t"0 06)and for the thickness (t) less than or equal to 0.06 inches being d (1+2.5t) *t(O.06-t). The fastener (100) may be used in a system wherein a thin steel element (210) abuts the washer (145) and the fastener (100) joins the thin steel element (210) to a thick steel element (220).

MALE ANTI-FALSE THREAD FASTENER MEMBER

A male anti-false thread fastener member (10) having features, including: a shank that has a lead end and a tool engagement end; a head formed at the tool engagement end of the shank; at least one male fastening thread (15) formed on the exterior of the shank as a plurality of thread windings adapted to mate with a corresponding female fastening thread formed in an interior of a female fastener member; at least one male lead thread (17) formed on the exterior of the shank at the lead end that is at least a half winding around the shank and comprises curved profile defined by an arc having a radius (R) approximately equal to a radius of an arc that is tangent to both flanks of a thread profile of the at least one male fastening thread (15) and below the pitch line of the at least one male fastener thread (15).

ANTI-FALSE THREADING FASTENER SYSTEM

An anti-false threading fastener system comprising: a female fastener member (30) comprising: at least one female fastening thread formed in an interior of the female fastener member (30); at least one female lead thread (31) formed in the interior of the female fastener member (30); a male fastener member (10) comprising: a shank (12) that has a lead end (14) for insertion into the interior of the female fastener member (30); at least one male fastening thread (11) formed on the exterior of the shank (12) as a plurality of thread windings (15) adapted to mate with the female fastening thread; at least one male lead thread (17) formed on the exterior of the shank (12) at the lead end (14) that is at least a half winding around the shank (12) and comprises a curved profile defined by an arc having a radius (R) approximately equal to a radius of an arc that is tangent to both flanks of a thread profile of the at least one male fastening thread (11) and below the pitch line of the at least ...

DOUBLE-END THREADED BODY AND INTERNALLY-THREADED BODY

A duplex-threaded body having a right-handed thread and a left-handed thread on the circumferential surface of a single solid member. The duplex-threaded body may be an internally-threaded single-nut body or a internally-threaded double-nut body that demonstrates a locking effect even at an intermediate position without substantially loosening by using a combination of a duplex externally-threaded body and one or more internally-threaded bodies. Also provided is a screw structure in which a pair of internally-threaded bodies can only be removed by destruction once they are mutually coupled by screwing onto a duplex externally-threaded body, thereby making it possible to impart tamper-proof characteristics in addition to a locking effect. The duplex externally-threaded body has, on the outer circumferential surface of a rod-like member, an overlapping region in which a clockwise spiral right-handed thread and a counter-clockwise spiral left-handed thread are provided in at least an overlapping ...

COMPRESSIBLE SCREW-TYPE LOCKING MECHANISM

The present invention relates to compressible screw-type locking mechanism including an oversized locking screw (12) and a tool for compressing and rotatively driving the oversized locking screw (12) is a head portion (12a) and extending downwardly from the head portion is a threaded shaft (12G). At least one longitudinal slot (18) extends through the head and at least partially through the shaft to form a locking screw with plural resilient segments. The locking screw assumes a normal expanded state with its threaded pitch diameter being oversized with respect to its companion bore. The locking screw is compressed by engaging the head (12a) thereof with the tool (16). In one embodiment, the compression of the locking screw is achieved through a torquing action. In a second embodiment, the compression is achieved by the axial movement of the tool. In either case, by relieving the applied torque or removing the tool. In either case, by relieving the applied torque or removing the tool from ...

Metall-Haltestift.

Verfahren zur Herstellung eines Gewindebegrenzungswulstes an einer Schraube mit gedrücktem oder gerolltem Gewinde.

Piton destiné à être implanté dans une masse compacte.

Metallhaltestift.

Bride.

Vorrichtung zum Befestigen von Türblockrahmen oder ähnlichen Bauteilen, am Mauerwerk

Klammerschraube.

Klammerschraube

Schraube

Befestigungsvorrichtung

Justierbarer Distanzbolzen und Verwendung desselben

ARRANGEMENT FOR THE CONNECTION OF IN ONE OR MULTILEVEL ONE, COMPACTIBLE FLAT MATERIAL WITH AN AMONG THEM IT PRESENT ONE STARING BODY.

Adjustable device for fixing insulation and joists

This adjustable device for fixing insulation and joists comprises a rod (4) a part of which has insulation (2) fitted over it and one threaded end (6) of which is fixed in a wall (1). It comprises a shoulder (5) which abuts against a wall (1), and the other end (7) comprises a threading interacting with a positioning member (8) which can be moved over part of the length of the rod (4) and a pointed part in which a joist (3) is fixed, one of the faces of the positioning member (8) being in contact with one of the faces of the joist (3). ...

WITH BEARING JOURNAL.

Befestigungsvorrichtung zur Befestigung von Gebäudeelementen.

Die Erfindung betrifft eine Befestigungsvorrichtung zur Befestigung von Gebäudeelementen an einer Gebäudestruktur, insbesondere zur Befestigung von Führungselementen zur Führung von Schiebetüren oder -wänden, die einen Schraubanker (1) zur Verankerung in der Gebäudestruktur und ein Schraubelement (8) zum Befestigen eines Gebäudeelements umfasst. Der Schraubanker (1) weist an einem Ende ein Aussengewinde (2) zum Einschrauben in die Gebäudestruktur und an einem gegenüberliegenden, hülsenartig ausgebildeten Ende (6) ein Innengewinde (11) zum Einschrauben des Schraubelements (8) in den Schraubanker (1) auf.

Threaded assembly for a sanitary installation structure.

Eine Gewindeeinheit (1) für eine sanitäre Montagestruktur (10) umfasst eine Schraube mit einer Mittelachse, einem Gewindeabschnitt einem Lagerabschnitt und einem Betätigungsabschnitt (5), ein Lagerelement (6) mit einer Lageröffnung (7), In welcher die Schraube mit dem Lagerabschnitt um die Mittelachse drehbar und von einer ersten Position in eine zweite Position verschiebbar gelagert ist, und mindestens ein am Lagerelement (6) bezüglich der Mittelachse fest gelagertes Klemmelement (8) mit mindestens einem Klemmabschnitt zur klemmenden Befestigung des Lagerelements (6) an einer Montagestruktur (10), und wobei der mindestens eine Klemmabschnitt durch das Verschieben der Schraube von der ersten Position in die zweite Position radial zur Mittelachse nach aussen von einer Montageposition, in welcher die Gewindeeinhelt (1) relativ zur Montagestruktur (10) verschiebbar ist, In eine Klemmposition, in welcher die Gewindeeinheit (1) zur Montagestruktur (10) fest geklemmt ist, bewegbar ist.

A R-type thread

FITTING FOR the FIXING OF the COMPONENTS OF the INTERNAL BODIES Of a TANK OF Nuclear reactor

Connecting holding bolt forming harpoon

A method for obtaining a screw with multistage body

JOURNAL, IN PARTICULAR FOR A SLIDE OF A MACHINE TOOL

MEASURE FOR ASSEMBLY Of a SCREW

Construction anti-sparking, particularly for aircraft.

SCREW INSTALLATION AND WITHDRAWAL RAPIDS, ITS MANUFACTORING PROCESS AND TOOL FOR ITS WITHDRAWAL

Harness eye bolt for building - has threaded shank with stop shoulder before head with eye

Screw mounting gauge for solid assembling of e.g. exterior plate, in aeronautic field, has ring whose length and graduation distribution are provided in such manner that graduation represents distance separating thread from plate

Cette jauge pour montage d'une vis dans une cage-écrou ou dans un écrou (23) en vue de l'assemblage d'au moins deux pièces (13, 15), comprend une tige (37) à partie lisse (39) munie de graduations (47) et à extrémité filetée (41) analogues à celles de ladite vis. Une bague (49) est montée coulissante sur ladite partie lisse (39). La longueur axiale de ladite bague (49) et la répartition desdites graduations (47) sont telles que lorsque la tige (37) de ladite jauge est vissée en butée dans ladite cage-écrou ou dans ledit écrou (23) et que ladite bague (49) est plaquée contre l'une (13) desdites deux pièces (13, 15), la graduation indiquée par ladite bague (49) sur ladite partie lisse (39) est représentative de la distance séparant le filetage (43) de ladite cage-écrou ou dudit écrou (23) de la surface externe de la pièce (13) située à l'opposé de cette cage-écrou ou dudit écrou (23).

Composite-metal male fastener for use with aircraft construction, has core element filling central bore to extend length of hollow shell that is made of metal and titanium alloy, where shell includes proximal and distal extremities

L'invention se rapporte à un élément de fixation mâle composite-métal comportant : une coquille creuse allongée (21) fabriquée en métal, ledit élément de coquille comprenant une extrémité proximale (3), une extrémité distale (5) et un alésage central longitudinalement aligné (25) qui s'étend sur toute la longueur à travers ladite coquille creuse, ladite extrémité proximale comprenant un rebord s'étendant radialement (29) afin de former une tête d'élément de fixation mâle (7) pour la rotation de l'élément de fixation mâle et une ouverture s'étendant dans ledit alésage, ladite extrémité distale de coquille comprenant des filets mâles extérieurs destinés à recevoir de manière vissée les filets d'un élément de fixation femelle ; et un élément de noyau (37) fabriqué dans une matière composite, ledit élément de noyau remplissant ledit alésage central de ladite coquille afin de s'étendre sur la longueur de ladite coquille.

HEAT AND FLAME-RESISTANT MEMBER FOR CABLE TRAY WHICH CAN BE EASILY INSPECTED, REPAIRED, AND MAINTAINED

The present invention relates to a heat and flame-resistant member for a cable tray, and more particularly, to a heat and flame-resistant member for a cable tray which includes a thermally expandable resin which is expanded due to heat in case of a fire by being formed to surround the cable tray in which a cable or a pipe is buried. The heat and flame-resistant member for a cable tray includes an inspection hole. According to the present invention, the heat and flame-resistant member can protect the cable tray and the cable from an external impact, prevent damage due to a contact with an external object, and prevent the performance degradation of the cable in which heat dissipation is important, due to the heat by ensuring air permeability in normal times. The heat and flame-resistant member can safely protect the cable tray and the cable from the fire by being expanded due to the heat of a high temperature in case of the fire. Also, the states of the electric wire pipe and the cable buried ...

BOLT STRUCTURE WITH INTERNAL LOCKING DEVICE

The present invention relates to a bolt structure with an internal locking device, which comprises: a base bolt having one side end inserted into a hole formed by overlapping a fixed structure and an object to be fixed; a core bolt screwed to be able to move forward and backward through the center in the longitudinal direction of the base bolt; a nut coupled to the base bolt to maintain a state in which the fixed structure and the object to be fixed to be overlapped with each other by being coupled to an end of the base bolt inserted into and protruding from the hole; a locking member for selectively pressing the outer surface of the nut in accordance with the forward and backward movement of the core bolt to prevent separation of the base bolt; and a restriction part screwed to the core bolt in the longitudinal direction of the base bolt to be able to move forward and backward by penetrating the center while facing the core bolt so as to come in contact with an end of the core bolt to ...

DOWEL

Fastening means

A fastening means that can be driven into a pre-fabricated bore hole in a hard substrate such as steel, concrete, rock or the like using a setting tool. The fastening means comprises a shank (1) and a load application means (2), wherein the shank (1) has a free end that is planar and a cylindrical outer contour, such that the driving of the fastening means into the substrate is done with an essentially consistently uniform driving force.

CORROSION-RESISTANT SCREW, USE OF A SCREW OF THIS TYPE IN A CORROSIVE ENVIRONMENT, AND METHOD FOR PRODUCING A SCREW OF THIS TYPE

The invention relates to a screw, having a shank which is provided with a thread, produced from a material which is suitable for a strength-increasing thermal treatment and is resistant to corrosion, and to the use of a screw of this type in a corrosive environment in conjunction with a corrosion-resistant component to be screwed, and, furthermore, to a method for producing a screw of this type. Screws of this type are used, in particular, for direct screwing.

REPLACEMENT STUD AND SETTING TOOL FOR MACHINE SCREW ANCHORS

A stud (20) includes a shaft (24) having an integrated stop washer (26), helical threading (23 and 25) on opposing sides of the integrated stop washer, and an integral driver mechanism (22) having a diameter smaller than the diameter of the shaft. The stud can mate with a wing-nut (18) that can be placed over the integral driver mechanism. The stud can further include an integral fluted thread cleaning feature (32). The cleaning feature can clean the threads (14) on an anchor (17) having an inner sleeve (12) and an outer sleeve (16) as the stud is being threaded into the anchor. The stud can further include a compressible washer (28) abutting against the integrated stop washer. The stud (20) can further include an optional spacer (30) abutting against the compressible washer when under compression. The stud can serve as a setting tool for the machine screw anchor arrangement.

DEVICE FOR SUSPENDING A UNIT SUCH THAT VIBRATIONS ARE DAMPED

The invention relates to a device (10) for suspending a unit (22), especially a hydraulic unit of an electronically slip-controlled brake system of a motor vehicle, in a receptacle (32a, b, c) provided for that purpose on the vehicle such that vibrations are damped. Hydraulic units of vehicle brake systems are usually equipped with an electric motor (26) which drives pumps located in the hydraulic unit. The brake pressure in the wheel brakes can be modulated via said pumps. The pump drive can cause mechanical and hydraulic vibrations in the unit (22) which can result in unwanted operational noise in case said vibrations are transmitted to the vehicle body without being damped. Devices (10) known in prior art for damping such vibrations can be preloaded with the aid of tools. Disclosed is a manually preloaded device (10) because generally space for using tools is limited in the vehicle. The inventive device (10) comprises a clamping means (16) which is guided in an axially movable manner ...

BOLT

In the prior art, many shavings are formed at the leading end of the threaded portion of a bolt fastened in a nut when a car door is tentatively mounted by means of bolts on an electrodeposition-coated car body. The shavings are splashed around to stick to the surfaces of the door or car body, thereby to cause the coating quality defectives at the subsequent coating step. Provided is a bolt (1) including a head (1a) and a threaded portion (1c) extending from the head (1a). The bolt (1) has a through hole (1e) formed to extend in the axial direction thereof from the end of the head (1a) to the end of the threaded portion (1c). Thus, the shavings, which are produced near the leading end of the threaded portion (1c) of the bolt (1) when a nut (2a) is fastened on the bolt (1), can be sucked and recovered through the through hole (1e) so that they can be prevented from flying around.

APPARATUS FOR REPAIRING CRACKS

A pin (10) is provided for repairing cracks (C) in a material (M) such as iron casting materials. The pin includes threads (60) with both upper and lower surfaces wich angle toward a head of the pin. A tapping bit (550) is utilized in a hole (H) of similar diameter to the pin, positioned with half of the hole on each side of a crack, the bit creating threads in the hole which are substantially complemental to the threads of the pin. The pin includes a shoulder (40) which has a greater diameter than a diameter of the hole. When the pin is threaded into the hole, the shoulder abuts against a surface (S) of the cracked material causing the pin to cease translation into the material. Upon further rotation of the pin, the upwardly angled threads draw opposite sides of the crack towards each other.

Masonry block anchor bolt assembly

An anchor bolt assembly includes a bolt having an elongate portion and an arcuate end portion integral therewith. The arcuate end portion is positioned within a hollow core of a masonry block with the elongate portion extending outwardly thereof. The assembly further includes a toggle member positionable along the elongate portion and adjacent the arcuate end portion so that the toggle member becomes disposed within a hollow core of a masonry block after being positioned along the elongate portion. The toggle member preferably has a front surface engageable with an interior surface of the masonry block. A nut is threadably positionable at the elongate portion and opposite to the toggle member so that the nut becomes disposed at an exterior of the masonry block.

Fastener

A fastener comprising an elongate shank having a workpiece engaging end and a driving end. The shank is provided with at least one protrusion characterized by having a leading edge and a trailing edge. The leading edge is oriented in a direction non-parallel to any plane containing the longitudinal axis of the shank. The angle subtended between the leading edge and the longitudinal axis towards the driving end is less than 90 degrees and chosen such that, in use, the fastener may be driven into the workpiece, the angle subtended between the trailing edge and the longitudinal axis towards the driving end being such that the trailing edge resists removal of the fixing member from the workpiece. Preferably the protrusion is welded to the shank.

THREADED FASTENER

A threaded fastener having a threaded portion with a ratio of pitch diameter to minor diameter less than 1.28, and the threaded portion with a major diameter portion, a leading flank having a normal angle between 10° and 60°, a trailing flank having a normal angle between 1° and 30°, and a shank portion extending between the trailing flank and the leading flank of adjacent threads of a arcuate surface having a radius greater than the thread height. The arcuate surface forming the shank portion may have a radius between 1.2 and 1.8 times the thread height.

FASTENERS

РЕГУЛИРОВОЧНОЕ УСТРОЙСТВО ДЛЯ СОРТИРОВОЧНЫХ СИСТЕМ

Предложенная группа изобретений относится к сортировочным системам для сортировки объектов, основанным на конвейерном оборудовании с гребневыми ремнями (лентами). Регулировочное устройство для сортировочного аппарата с множеством бесконечных гребневых ремней, расположенных на заданном расстоянии друг от друга, способных к непрерывному перемещению в переднем направлении и поддерживаемых в продольном направлении множеством направляющих планок. Регулировочное устройство установлено под указанными гребневыми ремнями и поддерживающими их направляющими планками для регулировки расстояния между указанными гребневыми ремнями и содержит: множество опорных компонентов, каждый из которых имеет цилиндрическую центральную секцию, а также первую резьбовую секцию, которая является внутренней частью двойного действия, находящейся внутри цилиндрической центральной секции и формирующей резьбовую структуру, отходящую от центра цилиндра в направлении каждого торцевого отверстия, множество регулировочных ввинчивающихся ...

РЕГУЛИРОВОЧНОЕ УСТРОЙСТВО ДЛЯ СОРТИРОВОЧНЫХ СИСТЕМ

ИЗМЕРИТЕЛЬНЫЙ ИНСТРУМЕНТ, ИСПОЛЬЗУЕМЫЙ ПРИ УСТАНОВКЕ БОЛТА

... 1. Измерительный инструмент, используемый при установке болта (1) в закладную гайку или гайку (23) другого типа с целью соединения по меньшей мере двух деталей (13, 15), причем болт содержит головку (9) и стержень (3) с промежуточной гладкой частью (7) и резьбовым концом (5), а измерительный инструмент содержит стержень (37) с гладкой частью (39), снабженной делениями (47), и резьбовым концом (41), аналогичными гладкой части и резьбовому концу болта (1), а также втулку (49), установленную с возможностью скольжения по гладкой части (39) стержня, причем осевая длина втулки (49) и расположение делений (47) таковы, что, если стержень (37) измерительного инструмента максимально ввинчен в закладную гайку или указанную гайку (23), а втулка прижата к одной (13) из двух деталей (13, 15), то деление, нанесенное на гладкой части стержня, на которое указывает втулка (49), соответствует длине отрезка, отделяющего резьбу (43) закладной гайки или указанной гайки (23) от внешней поверхности детали (13) ...

ПОЛЫЙ МЕТАЛЛИЧЕСКИЙ ВИНТ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

BEFESTIGUNGSELEMENT ZUM EINTREIBEN IN HARTE WERKSTOFFE

Building system

Резьбовое крепежное средство с покрытием

Резьбовое крепежное средство (1) и сборочный инструмент для завинчивания резьбового крепежного средства (1). Крепежное средство содержит головку (2) и стержень (4), содержащий наружную резьбу (3). Головка (2) содержит часть (5) для передачи крутящего момента, причем часть (5) для передачи крутящего момента является наружной частью, имеющей внешнюю и выступающую контактную поверхность (6). Контактная поверхность (6) содержит профиль, имеющий по меньшей мере два выступа (7), продолжающихся наружу от продольной средней оси (X) крепежного средства, и имеющий по меньшей мере две впадины (8), причем впадина (8) выполнена с возможностью отделения расположенных смежно выступов (7). Выступ (7) имеет переднюю контактную поверхность (9) и заднюю контактную поверхность (10), причем контактные поверхности (9, 10) расположены по меньшей мере по существу параллельно продольной средней оси (X) крепежного средства. Профиль имеет асимметричную форму, так что воображаемое продолжение (E) передней контактной поверхности (9) проходит на большем расстоянии от продольной средней оси (X) крепежного средства, чем воображаемое продолжение (E) задней контактной поверхности (10). РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 188 604 U1 (51) МПК F16B 23/00 (2006.01) F16B 25/00 (2006.01) F16B 35/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК F16B 23/00 (2019.02); F16B 25/00 (2019.02); F16B 35/04 (2019.02) (21) (22) Заявка: 2018132185, 10.09.2018 (24) Дата начала отсчета срока действия патента: 10.09.2018 (72) Автор(ы): ХЯМЯЛЯЙНЕН Паулюс (FI) Дата регистрации: 17.04.2019 (56) Список документов, цитированных в отчете о поиске: WO 1999052680 A1, 21.10.1999. US 3584667 A1, 15.06.1971. US 3352190 A1, 14.11.1967. US 6131493 A1, 17.10.2000. WO 2010014881 A1, 04.02.2010. RU 2168077 C1, 27.05.2001. 12.09.2017 EP 17190582.1 (45) Опубликовано: 17.04.2019 Бюл. № 11 1 8 8 6 0 4 R U (54) РЕЗЬБОВОЕ КРЕПЕЖНОЕ СРЕДСТВО С ПОКРЫТИЕМ (57) Реферат: ...

Mounting device for fastening a module onto a component, in particular an outside housing of another module

The invention relates to a mounting device for fastening a module onto a component, in particular an outside housing of another module. The device includes a fastening screw having a thread, a screw carrier to receive the screw shaft of the fastening screw, and a thread carrier which is connected to the component and has an inside thread corresponding to the thread of the fastening screw. A force-locking connection between the screw carrier and the thread carrier is established by means of the fastening screw in the fastening position, and the module is supported on a supporting element of the component in the fastening position. The screw shaft of the fastening screw has an additional shaft section which is connected to the front shaft section at the screw head end for receiving a spring element.

Contaminant-rejecting screw threads

A threaded connection ( 10 ) has an improved ability to engage and tighten screw threads ( 16 ) when they are contaminated with gritty materials. Adding axial grooves ( 18 ) to the male ( 14 ) and/or female ( 12 ) halves of a screw thread ( 16 ) enables the tightening action to expel gritty contaminants from the mesh of the threads by providing an “escape path” for the contaminants.

Seat track and monument attach fastener

A blind fastener employs a split bolt element having two symmetrical half sections split at mating separation faces and cooperatively displaceable between a first collapsed position and a second expanded position. A capture portion split bolt has a substantially circular plan form in the fist collapsed position with a diameter which is received through an attachment hole in a structural member. A bearing section and a threaded portion both have a substantially circular plan form in the second expanded position while the capture portion has compression surfaces extending with an elliptical major axis greater than the hole diameter in the extended second position to engage a bottom surface surrounding the attachment hole. The bearing section closely engages the attachment hole in the expanded position. A wedge separator element is insertable between the half sections to expand them from the first collapsed position to the second expanded position. A nut is threadably received on the threaded portion and engages a lip on a mounting aperture in a monument to be attached to the supporting structure.

Universal device mount

A method for mounting an electrical device to plurality of weapons includes attaching a universal mounting member having a head to the electrical device and receiving the head into a first track of first weapon mount to from a first mated coupling. The method further includes inserting a screw through the first track and into the head to secure the mated coupling.

Load-bearing member with hollow fastener

A load-bearing member such as a beam, column, girder or post comprises an elongated body defining a rigid structure for bearing a load. A hollow fastener extends through the body from a first side of the body to a second side of the body. The hollow fastener, which may be a hollow bolt, nail, lag screw or threaded shaft, defines a passageway through the load-bearing member for insertion of a cable, wire, tube or pipe. This obviates the need to drill the beam or column, which can compromise its structural integrity.

Composite joist floor system

The composite joist floor system includes joists supported by supporting members. Corrugated steel decking is positioned over the joists such that the corrugations are substantially perpendicular to the joists. Self-drilling, self-tapping, stand-off screws are spaced along the length of the joist, aligned with the deck corrugations. These stand-off screws provide the required shear transfer between the joist and concrete slab to form a composite floor system. The placed concrete encapsulates the upper non-threaded shank portions of the stand-off screws and the end of the joists. After the concrete has cured, the resultant system comprised of steel joists, steel decking, stand-off screws, and concrete, act together to form a composite system with greater load carrying capacity and less vertical deflection. The stand-off screws connect the joist upper chords to the concrete slab allowing the joist and concrete slab to act as a unit, by transferring shear between the two joined components.

Compound differential thread systems

A compound differentially threaded element engages two or more longitudinally severed segments of a mating threaded element to provide differential linear motion. Different thread types may include pitch, thread starts, handedness or thread-form. Combinations of differential threads may be selected to enable fine or coarse linear motion without correspondingly fine or coarse thread pitches.

Unconventional Bolt and a Fastening Device Using the Unconventional Bolt Thereof

An unconventional bolt includes a main body having two heads, and two threaded rods respectively formed at the external surface of each head coaxially with the main body, wherein the cross section of each head has a noncircular shape, and the axial projection of the cross section of the middle of the main body is located in the noncircular axial projection of each head of the main body. The unconventional bolt has a simple structure and a convenient assembly, and can improve the strength and rigidity of the nested profiled components after the connection; and the fastening device using the unconventional bolt can not only support the component but also reinforce it, thus effectively preventing the nested profiled components from transforming. 1. An unconventional bolt comprising:a main body with a first cross section and two ends,wherein each end comprisesa head coaxially connected to the main body, anda threaded rod coaxially connected to the head,the head has a noncircular cross section, and the first cross section of the main body is contained within the noncircular cross section of the head.2. The unconventional bolt of claim 1 , wherein the first cross section of the main body is substantially identical to the noncircular cross section of the head claim 1 , and the first cross section of the main body has a shape selected from the following group: waist-round claim 1 , rectangle claim 1 , oval claim 1 , square claim 1 , triangle claim 1 , diamond claim 1 , trapezoid claim 1 , and polygon with four or more edges.3. The unconventional bolt of claim 1 , wherein the first cross section of the main body has a center line defined by a longest diameter line of the first cross section that is perpendicular to a shortest diameter line of the first cross section claim 1 , and each end has a marking slot claim 1 , the marking slot has an opening aligned with the center line.4. A fastening device using the unconventional bolt of claim 1 , the fastening device connecting ...

Screw

The invention relates to a screw having a screw head, a screw end which lies opposite the screw head, and an external screw threading for the purpose of screwing the screw into a material, wherein the screw has at least two parts which are connected to each other via a detachable connection, wherein the screw head is arranged on another part than the external screw threading and the screw end, as well as a tool for the complete removal of such a screw.

Electrically Conducting Screw Connection And Special Screw For Such A Screw Connection

The invention relates to an electrically conducting screw connection between two parts ( 10, 12 ) which are fastened to each other by a screw ( 16 ) having a screw head ( 18 ) and a shaft ( 22 ) and by a nut ( 28 ), wherein the screw ( 16 ) extends through a hole ( 14 ) in one of the parts ( 10 ), wherein the electrical contact between the other part ( 12 ) and the screw ( 16 ) is established by teeth ( 27 ) on the workpiece-side surface of the screw head ( 18 ) and/or of the nut ( 28 ) or of a washer ( 30 ) arranged between the nut ( 28 ) and the outer part ( 12 ), while the contact between the screw ( 16 ) and the one part ( 10 ) is established by elevations ( 26 ) on the shaft ( 22 ) of the screw ( 16 ), the outer diameter of the elevations being slightly greater than the inner diameter of the hole ( 14 ) and the elevations being arranged between the external thread ( 24 ) and the screw head ( 18 ), wherein the elevations ( 26 ) have flanks ( 42, 44 ) that extend at an angle and that meet each other at an angle of approximately 60° and that are connected to each other by circular arc sections ( 46, 48 ).

WELD STUD

A welding stud including a head and a shank extending from the head. The shank has an end region opposite the head and the end region includes at least two angled surfaces which incline towards an axis of the shank in a direction moving away from the head. 1. A welding stud comprising:a head and a shank extending from the head;wherein the shank has an end region opposite the head, wherein the end region comprises at least two angled surfaces which incline towards an axis of the shank in a direction moving away from the head.2. The welding stud of claim 1 , wherein the angled surfaces are inclined in the range of 2° to 20° with respect to the axis.3. The welding stud of claim 1 , wherein the angled surfaces are inclined in the range of 3° to 12° with respect to the axis.4. The welding stud of claim 1 , wherein the angled surfaces are inclined by about 6° with respect to the axis.5. The welding stud of claim 1 , wherein the end region includes at least four angled surfaces.6. The welding stud of claim 1 , wherein the end region of the shank includes at least one tapered gradation of diameter7. The welding stud of claim 1 , wherein the shank includes an external thread.8. The welding stud of claim 7 , wherein the end region includes at least one tapered gradation of diameter claim 7 , the diameter of the gradation of diameter being slightly smaller than a minor diameter of the thread.9. The welding stud of claim 7 , wherein the end region of the shank includes a first and a second gradation of diameter claim 7 , wherein the first gradation of diameter is farther away from the head of the shank and is smaller than the second gradation of diameter claim 7 , andwherein the second gradation of diameter is smaller than a nominal diameter of the thread.10. The welding stud of claim 7 , wherein the shank includes at least one paint scraping groove that extends in a longitudinal direction of the shank and at which the threads are interrupted.11. The welding stud of claim 10 , ...

Form locking connection with compensation of position errors

A form-locking connection with compensation of position errors including a first component and a second component to be connected to each other; characterized by a first circular form-locking element associated with the first component; a second circular form-locking element associated with the second component, and a compensating element provided between the first form-locking element and the second form-locking element, wherein the form-locking elements are fixed in the axial position thereof and together with the compensating element form an interlocking arrangement which positions the first component and the second component with respect to each other, wherein a side of the first form-locking element which faces the second from locking element is provided with a first surface which is curved in the manner of a spherical segment and the center point of curvature of which is positioned on the axis of the first form-locking element; wherein that side of the second form-locking element which faces the first form-locking element is provided with a second surface which is curved in the manner of a spherical segment and the center point of curvature of which is positioned on the axis of the second form-locking element, and wherein the compensating element, on the sides thereof remote from each other in the axial direction, has a third surface and a fourth surface respectively curved in the manner of spherical segments, the respective curvatures of which surfaces are matched to the facing first surface and second surface curved in the manner of spherical segments.

Magnetic Wall Anchoring System

An apparatus and method are provided for affixing an object to a surface. In an exemplary embodiment, the apparatus includes a magnet formed with an opening at its center. The magnet is attached to the surface by inserting a screw into the opening. A spacer and a flat washer are attached to the screw, with the spacer being positioned between the flat washer and the magnet. After the screw is affixed to the surface, a metal object can be magnetically attached to the screw and magnet to secure the object to the surface. A backer plate is also contemplated for securing non-magnetic objects to the screw and magnet. Multiple backer plates can be affixed to objects to support a greater amount of weight if required. 1. An apparatus for anchoring an object to a surface , wherein the apparatus comprises:a magnet having a thickness “t”, a first side, a second side, and a center, wherein the magnet is formed with a an opening in the center extending between the first side and the second side, and wherein the opening has a diameter “d”;{'sub': 1', '2', '1', '2, 'a screw having a point end and a head end, wherein the point end has a diameter “d” and is positioned in the opening in the magnet and the head end has a diameter greater than “d”, wherein d Подробнее

Composite joist floor system

Embodiments of the present invention provide systems for connecting a flooring system to a vertical wall. In one embodiment the building structure includes a floor comprising a cementitious slab and a wall supporting at least a portion of the cementitious slab. A plurality of stand-off screws extend from the top of the wall into the cementitious slab and are configured to transfer forces between the cementitious slab and the wall. The stand-off screws comprise a lower screw portion and an upper stand-off portion. The lower screw portion is drilled into the top of the wall, and the upper stand-off portion extends above the top of the wall and is encapsulated within the cementitious slab. In some embodiments, at least a portion of the lower screw portion is heat treated to a higher degree of hardness relative to the remainder of the stand-off screw.

Anti-splay medical implant closure with multi-surface removal aperture

A convex spinal fusion interbody space device includes spaced apart superior and inferior abutment surfaces which are effectively medially convex. The peak of such convexity is displaced anteriorly of a central plane through the device. The spacer device has a height which is greater than the width of the device. The spacer device is implanted between a pair of adjacent vertebrae by insertion in a tipped-over orientation and then reoriented to an upright orientation for engagement by facing surfaces of the vertebrae. Fusion promoting bone material is packed between the vertebrae and about and within the spacer device subsequent to implantation.

CONNECTING ELEMENT FOR ATTACHING A COMPONENT TO A FIBER COMPOSITE STRUCTRUE

A connecting element for fastening connection pieces to fiber composite components made of at least one fiber layer and of matrix material is provided, the connecting element has a screw- or bolt-like shape, the connecting element includes a tip at one end thereof, which tip supports the penetration of the fiber layers of the fiber composite component in the dry or matrix-impregnated, unconsolidated state, and comprising a casing in the region that comes in contact with matrix material of the fiber composite component, but at least in the region that comes in contact with the reinforcing fibers of the fiber composite component. 1. Connecting element for fixing connection pieces to fibre composite components made of at least one fibre ply and matrix material , comprising a screw- or bolt-like shape with a head and a body , wherein the body has an elongated shape with a smaller cross section than the head , and wherein at the end which is facing away from the head a tip is arranged , which supports the penetration of the fibre plies of the fibre composite component in the dry state or unconsolidated state impregnated with matrix , wherein the metallic connection piece has openings for feeding through the body of the connecting element or is itself the head of one or more connecting elements , wherein the connecting element has a casing in the area which comes into contact with the matrix material of the fibre composite component , but at least in the area which comes into contact with the reinforcing fibres of the fibre composite component.2. Connecting element according to claim 1 , wherein the tip is removable.3. Connecting element according to claim 2 , wherein the tip is screwed onto an external thread of the connecting element.4. Connecting element according to claim 2 , wherein the tip is screwed onto an internal thread of the connecting element which is arranged axially at the end of the connecting element.5. Connecting element according to claim 2 , wherein ...

FASTENERS

A pin for a blind bolt, the pin having a proximal end, a distal end and a shaft between the proximal and distal ends, extending axially from the distal end an outwardly tapered surface and an inwardly tapered surface, the pin comprising a strike portion at the proximal end, wherein the cross sectional area of the strike portion is greater than the cross sectional area of the shaft. 1. A pin for a blind bolt , the pin having a proximal end , a distal end and a shaft between the proximal and distal ends , extending axially from the distal end an outwardly tapered surface and an inwardly tapered surface , the pin comprising a strike portion at the proximal end , wherein the cross sectional area of the strike portion is greater than the cross sectional area of the shaft.2. A pin as claimed in claim 1 , wherein the outwardly tapered surface and the inwardly tapered surface provide at least part of a tip having a length L.3. A pin as claimed in claim 2 , wherein the inwardly tapered surface has a length of at least approximately 0.2 L.4. A pin as claimed in claim 1 , wherein the pin comprises at least one facing surface.5. A pin as claimed in claim 4 , wherein the or each facing surface is orthogonal to the principal long axis of the shaft.6. A pin as claimed in or claim 4 , wherein the or each facing surface faces the distal end of the pin.7. A pin for a blind bolt claim 4 , the pin comprising a shaft and a tip at one end of the shaft claim 4 , the tip having a length L claim 4 , extending axially in a direction towards the shaft the tip comprises successively an outwardly tapered surface and an inwardly tapered surface claim 4 , wherein the inwardly tapered surface has a length of at least approximately 0.2 L.8. A pin as claimed in claim 7 , wherein the pin further comprises a strike portion at a second end of the shaft.9. A pin as claimed in claim 7 , wherein the cross sectional area of the strike portion is greater than the cross sectional area of the shaft.10. A bolt ...

HOLLOW METAL SCREW AND METHOD OF MAKING

A hollow screw and related process of making is provided, wherein the hollow screw is formed from a generally circular corrosion resistant stainless steel disk cut from flat roll stock. The hollow screw includes a head and an elongated and hollow shaft having a wall thickness between about 0.2 to about 0.7 millimeters extending therefrom and defining a shank portion and a threaded portion having a plurality of threads thereon with a rotational drive mechanism configured to facilitate tightening via the threads. The process involves annealing to soften the stamped hollow screw, followed by thread rolling, and then age hardening the hollow screw. As such, the resultant hollow screw is relatively lightweight, about 50% the mass of a solid core screw made from the same material, with a sufficient thread strength to meet most aerospace applications and contributes to important aircraft fuel economy. 1. A hollow screw , comprising:a head formed from a flat stock of metal material;an elongated and hollow shaft formed from the flat stock of metal material and integrally extending from the head, the elongated and hollow shaft including a shank portion and a threaded portion having a plurality of threads thereon; anda rotational drive mechanism integrally formed from the flat stock of metal material and coupled with the head or the elongated and hollow shaft, and configured to facilitate tightening of the hollow screw by way of the threads.2. The hollow screw of claim 1 , wherein the elongated and hollow shaft comprises a wall thickness between about 0.2 and 0.7 millimeters.3. The hollow screw of claim 1 , including an integral washer formed from the flat stock of metal material and extending outwardly from the head.4. The hollow screw of claim 3 , including a captive washer at least partially formed around the integral washer in a manner permitting free rotation of the captive washer relative to the integral washer claim 3 , the head and the elongated and hollow shaft.5. The ...

ANCHORING SYSTEM

The invention relates to an anchoring system for anchoring a securing means such as a bolt in a bore of a substrate, comprising a plurality of rupturable containers each for holding a respective component of a multi-component adhesive, the containers being adjacent and each having a plurality of longitudinally spaced frangible means having a configuration including a transverse element and an elongate element, so that on application of at least a rotational force, the containers twist and the frangible means rupture and form opposed container segments whereby to enhance mixing of the components of the adhesive. 1. An anchoring system for anchoring a securing means such as a bolt in a bore of a substrate , comprising a plurality of rupturable containers each for holding a respective component of a multi-component adhesive , the containers being adjacent , wherein frangible means of the containers having a configuration including a transverse element , so that on application of at least a rotational force , the containers twist and the frangible means rupture and form opposed container segments whereby to enhance mixing of the components of the adhesive.2. A system according to claim 1 , wherein the containers being elongate and by the frangible means comprising an element lying substantially longitudinally of the length of the containers.3. A system according to claim 2 , wherein the transverse element being inclined to the length of the longitudinal element.4. A system according to claim 3 , wherein the transverse element comprising a diagonally inclined element.5. A system according to claim 4 , wherein there being two diagonally inclined elements defining a substantially triangular configuration element.6. A system according to wherein the frangible means being of substantially star-shaped configuration.7. A system according to claim 2 , wherein the frangible means comprising impressions in the material of the containers containers.8. A system according to wherein ...

OLIVE-LIKE AND DUMBBELL-LIKE ASYMMETRICAL BIDIRECTIONAL TAPERED THREAD CONNECTION PAIRS

The present invention belongs to the technical field of general technology of devices, and relates to olive-like and dumbbell-like asymmetric bidirectional tapered thread connection pairs, which solve the problems of poor self-positioning and self-locking performance of existing threads. An internal thread () is a bidirectional tapered hole () (non-entity space) in an inner surface of a cylindrical body (); an external thread () is a bidirectional truncated cone body () (material entity) on an outer surface of a columnar body (); and a complete unit thread is a bidirectional tapered body in an olive-like shape () and with a left taper () greater than a right taper () and/or in a dumbbell-like () shape and with the left taper () smaller than the right taper (). 19619395969495964171629394937193949519626995961119596122. An olive-like and dumbbell-like asymmetric bidirectional tapered thread connection pair , comprising an external thread () and an internal thread () which are in threaded fitting with each other , wherein a complete unit thread of an asymmetric bidirectional tapered thread () comprises a special bidirectional tapered body in an olive-like shape () with a helical large middle and two small ends and left taper () larger than right taper () and/or in a dumbbell-like shape () with a helical small middle and two large ends and the left taper () smaller than the right taper () , and the special bidirectional tapered body comprises a bidirectional tapered hole () and/or a bidirectional truncated cone body (); a thread body of the internal thread () is a cylindrical body () with a helical inner surface , comprises a bidirectional tapered hole in the olive-like shape () and/or in the dumbbell-like shape () and exists in the form of a non-entity space; a thread body of the external thread () is a columnar body () with a helical outer surface , comprises a bidirectional truncated cone body () in the olive-like shape () and/or in the dumbbell-like shape () and ...

DUMBBELL-LIKE AND OLIVE-LIKE ASYMMETRICAL BIDIRECTIONAL TAPERED THREAD CONNECTION PAIRS

The present disclosure belongs to the technical field of general technology of devices, and relates to olive-like and dumbbell-like asymmetric bidirectional tapered thread connection pairs, which solve the problems of poor self-positioning and self-locking performance of existing threads. An internal thread () is a bidirectional tapered hole () (non-entity space) in an inner surface of a cylindrical body (); an external thread () is a bidirectional truncated cone body () (material entity) on an outer surface of a columnar body (); and a complete unit thread is a bidirectional tapered body in an olive-like shape () and with a left taper () greater than a right taper () and/or in a dumbbell-like () shape and with the left taper () smaller than the right taper (). 196. A dumbbell-like shaped and olive-like shaped asymmetric bidirectional tapered thread connection pair , comprising an external thread () and an internal thread () which are in mutual threaded fit;{'b': 1', '93', '94, 'wherein a complete unit thread of the asymmetric bidirectional tapered thread () comprises a bidirectional tapered body in an olive-like shape () and/or in a dumbbell-like shape ();'}{'b': 41', '71', '6', '2', '93', '94, 'the bidirectional tapered body comprises a bidirectional tapered hole () and/or a bidirectional truncated cone body (); a thread body of the internal thread () is a cylindrical body () with a helical inner surface, comprises a bidirectional tapered hole in the olive-like shape () and/or in the dumbbell-like shape () and exists in the form of a non-entity space;'}{'b': 9', '3', '71', '93', '94', '95', '1', '96', '2, 'a thread body of the external thread () is a columnar body () with a helical outer surface, comprises a bidirectional truncated cone body () in the olive-like shape () and/or in the dumbbell-like shape () and exists in the form of a material entity; the left taper () formed by the left conical surface of the bidirectional tapered body corresponds to a first ...

OLIVE-SHAPED BIDIRECTIONAL TAPERED THREAD BOLT AND NUT CONNECTION STRUCTURE HAVING LARGE LEFT TAPER AND SMALL RIGHT TAPER

The disclosure belongs to the technical field of general technology of devices, and relates to an olive-shaped bidirectional tapered thread bolt and nut connection structure having a large left taper and a small right taper, solving the problems of poor self-positioning and self-locking performances of the existing threads. An inner thread () is a bidirectional tapered hole () on the inner surface of the cylindrical body (), an external thread () is a bidirectional truncated cone body () on the outer surface of a columnar body (), the complete unit threads are both helical olive-like () shaped bidirectional tapered bodies which have larger left taper () being than right taper (), and are large in the middle and small in two ends. The performance mainly depends on conical surfaces and tapers of mutually fit thread bodies. 19619395964171. An olive-shaped bidirectional tapered thread bolt and nut connection structure having a large left taper and a small right taper , namely , a bolt and nut connection structure of an olive-like (left taper is larger than right taper) shaped asymmetrical bidirectional tapered thread , comprising: an external thread () and an internal thread () which are in mutual thread fit , wherein the complete unit thread of the olive-like (left taper is larger than right taper) shaped asymmetric bidirectional tapered thread () is a helical olive-like () shaped asymmetric bidirectional tapered body which is large in the middle and small in two ends , has a left taper () being larger than a right taper () and comprises a bidirectional tapered hole () and/or bidirectional truncated cone body ();{'b': 6', '41', '2', '9', '71', '3, 'the thread body of the internal thread () is presented by the helical bidirectional tapered hole () on the inner surface of the cylindrical body () and exists in a form of “non-entity space”, and the thread body of the external thread () is presented by the helical bidirectional truncated cone body () on the outer surface of ...

FASTENING MEMBER AND ROD-SHAPED MEMBER FOR FASTENING MEMBER

A fastening member includes: a first alloy section made of aluminum alloy containing zinc in an amount of 0.005 wt % or more and 6.5 wt % or less and containing magnesium in an amount of 0.6 wt % or more and 2.0 wt % or less, and provided at a portion being in contact with at least one of the plurality of members; and a second alloy section made of an aluminum alloy containing magnesium in an amount of greater than 0.2 wt % and 2.3 wt % or less and containing copper in an amount of greater than 1.0 wt % and 8.0 wt % or less, and bonded to the first alloy section. 1. A fastening member that fastens members , the fastening member comprising:a first alloy section made of aluminum alloy containing zinc in an amount of 0.005 wt % or more and 6.5 wt % or less and containing magnesium in an amount of 0.6 wt % or more and 2.0 wt % or less, is the first alloy section being provided in a portion in contact with at least one of the members; anda second alloy section made of an aluminum alloy containing magnesium in an amount of greater than 0.2 wt % and 2.3 wt % or less and containing copper in an amount of greater than 1.0 wt % and 8.0 wt % or less, the second alloy section being bonded to the first alloy section.2. The fastening member according to claim 1 , wherein Vickers hardness of the second alloy section is 130 or more.3. The fastening member according to claim 1 , wherein a screw thread is formed in a part of a surface of the first alloy section.4. The fastening member according to claim 3 , wherein a cylindrical shaft section with the screw thread formed in at least a part of the outer periphery;', 'a head section provided at one end of the shaft section in an axial direction; and', 'a neck section demarcating a boundary between the shaft section and the head section,, 'the fastening member is a male screw includingthe first alloy section constitutes at least a surface layer portion of the screw thread, a surface of the neck section and a surface layer portion of a ...

Clevis Pin Assembly

A clevis pin assembly includes a pin that may be removably inserted into a coupling. The pin is structured to have a channel extending therethrough. The channel may receive a lubricant thereby inhibiting the pin from becoming seized within the coupling. A fitting is removably coupled to the pin. The fitting may be fluidly coupled to a lubrication source thereby facilitating the lubricant to be introduced into the channel. A retainer is removably inserted through the pin thereby retain the pin within the coupling.

CONNECTION STRUCTURE OF BOLT AND NUT OF ASYMMETRIC BIDIRECTIONAL TAPERED THREAD IN OLIVE-LIKE SHAPE

The present invention belongs to the field of general technology of device, and particularly relates a connection structure of a bolt and a nut of an asymmetric bidirectional tapered thread in an olive-like shape, which solves the problems such as poor self-positioning and self-locking performance of the existing screw thread. The connection structure is characterized in that an external thread () is a bidirectional tapered hole () (non-entity space) in an internal surface of a cylindrical body (); an external thread () is a bidirectional truncated cone body () (material entity) on an external surface of a columnar body (); and a complete unit thread is a helical bidirectional tapered body in an olive-like shape () in which a left taper () is greater than and/or less than a right taper (). 196. A connection structure of a bolt and a nut of an asymmetric bidirectional tapered thread in an olive-like shape , comprising an external thread () and an internal thread () in mutual threaded fit , wherein{'b': 6', '93', '93', '95', '96', '93', '41', '71', '95', '96', '95', '96, 'a complete unit thread of the asymmetric bidirectional tapered internal thread () in the olive-like shape () is a helical asymmetric bidirectional tapered body in an olive-like shape (), with a large middle and two small ends, and with different sizes in a left taper () and a right taper (), the helical asymmetric bidirectional tapered body in the olive-like shape () comprises a bidirectional tapered hole () and/or a bidirectional truncated cone body (), and the complete unit thread comprises two taper structure forms in which the left taper () is greater than the right taper () and the left taper () is less than the right taper ();'}{'b': 6', '41', '2, 'a thread body of the internal thread () is the helical bidirectional tapered hole () in an internal surface of a cylindrical body () and exists in the form of a “non-entity space”;'}{'b': 9', '71', '3, 'a thread body of the external thread () is a ...

REMOVABLE FASTENER FOR STRUCTURAL ELEMENTS AND A METHOD OF ITS USE

A removable fastener for securing a first stud to a second stud each stud having an aperture with lateral and bottom edges, includes a joining member with a first end and second end having first and second notches sized to admit lateral edges made adjacent by placing the studs back-to-back. Fastener includes a locking member that has a stud end configured to rest on the bottom edges of the apertures and a fastener end configured to attach to the joining member, holding the joining member in position within the apertures when the joining member is engaged within the apertures; the fastener end may include a clip. 1. A removable fastener for securing a first structural element to a second structural element wherein the first structural element includes a substantially planar first web portion and a first aperture formed in the first web portion , the first aperture having a first aperture width , a first lateral edge , a second lateral edge , and a first bottom edge , and the second structural element includes a substantially planar second web portion and a second aperture formed in the second web portion , the second aperture having a second aperture width , a third lateral edge , a fourth lateral edge , and a second bottom edge , the fastener comprising: the first end further comprises a first notch having a first opening facing away from the second end, the first notch having a first width sized to admit the first lateral edge and the third lateral edge when the joining member is engaged within the first aperture and second aperture; and', 'the second end further comprises a second notch having a second opening facing away from the first end, the second notch having a second width sized to admit the second lateral edge and the fourth lateral edge when the joining member is engaged within the first aperture and second aperture; and, 'a joining member, the joining member including an elongate body having a first end and a second end, the elongate body having a length ...

OLIVE-SHAPED ASYMMETRIC BIDIRECTIONAL TAPERED THREAD CONNECTION PAIR WITH SMALLER LEFT TAPER AND GREATER RIGHT TAPER

The present invention belongs to the field of general technology of device, and relates to an olive-shaped asymmetric bidirectional tapered thread connection pair with smaller left taper and greater right taper, which solves the problems of poor self-positioning and self-locking performance of existing threads, wherein an internal thread () is a bidirectional tapered hole () (non-entity space) on an inner surface of a cylindrical body (); an external thread () is a bidirectional truncated cone body () (material entity) on an outer surface of a columnar body (), and a complete unit thread is a helical special bidirectional tapered body in an olive-like shape () with a left taper () smaller than a right taper () and with a large middle and two small ends. 1961939596417164129713951962959669122. An olive-shaped asymmetric bidirectional tapered thread connection pair with smaller left taper and greater right taper , i.e. , an olive-like shaped (left taper is smaller than right taper) asymmetric bidirectional tapered thread , comprising: an external thread () and an internal thread () in thread fit , wherein a complete unit thread of the olive-like (left taper is smaller than right taper) asymmetric bidirectional tapered thread () is a helical asymmetric bidirectional tapered body in an olive-like shape () and with a left taper () smaller than a right taper () and with a large middle and two small ends , comprising a bidirectional tapered hole () and/or a bidirectional truncated cone body (); a thread body of the internal thread () is a helical bidirectional tapered hole () on an inner surface of a cylindrical body () and exists in the form of “non-entity space”; a thread body of the external thread () is a helical bidirectional truncated cone body () on an outer surface of a columnar body () and exists in the form of “material entity”; the left taper () formed on a left tapered surface of the asymmetric bidirectional tapered body corresponds to a first taper angle (α); ...

OLIVE-SHAPED BIDIRECTIONAL TAPERED INTERNAL THREAD AND TRADITIONAL THREAD CONNECTION STRUCTURE HAVING LARGE LEFT TAPER AND SMALL RIGHT TAPER

The disclosure belongs to the technical field of general technology of devices, and relates to an olive-shaped bidirectional tapered internal thread and traditional thread connection structure having a large left taper and a small right taper. An internal thread () is a helical bidirectional tapered hole () located on the inner surface of a cylindrical body () and having an olive-like () shaped complete unit body thread which is large in left taper (), small in right taper (), large in the middle and small in two ends, and has the ability of assimilating a traditional external thread (); the assimilated external thread () is a helical special tapered body () on the outer surface of a columnar body (). 19693419596. An olive-shaped bidirectional tapered internal thread and traditional thread connection structure having a large left taper and a small right taper , namely , an olive-like (left taper is larger than right taper) shaped asymmetric bidirectional tapered thread internal thread and traditional thread connection structure , comprising an external thread () and an internal thread () which are in mutual thread fit , wherein the complete unit body thread of the olive-like (left taper is larger than right taper) shaped asymmetric bidirectional tapered internal thread is a helical olive-like () shaped asymmetric bidirectional tapered hole () which is large in the middle and small in two ends and has a left taper () being larger than a right taper ();{'b': 6', '41', '2', '9', '7', '3', '6, 'the thread body of the internal thread () is a helical bidirectional tapered hole () on the inner surface of the columnar body () and exists in a form of “non-entity space”, the thread body of the external thread () is a helical special tapered body () on the outer surface of the columnar body () and formed by assimilating the thread tooth of original traditional external thread due to cohesion contact with the bidirectional tapered internal thread () and exists in a form of “ ...

CONNECTION STRUCTURE OF OLIVE-SHAPE BIDIRECTIONAL TAPERED EXTERNAL THREAD WITH GREATER LEFT TAPER AND SMALLER RIGHT TAPER AND TRADITIONAL THREAD

The present disclosure belongs to the technical field of general technology of devices, and relates to a connection structure of an olive-shape bidirectional tapered external thread with greater left taper and smaller right taper and a traditional thread, which solves the problems of poor self-positioning and self-locking performance of existing threads. An external thread () is a helical bidirectional truncated cone body () (material entity) on an outer surface of a columnar body (), and a complete unit thread is in an olive-like shape () with a left taper () greater than a right taper () and with a large middle and two small ends. The external thread has capacity of assimilating a traditional internal thread (). The assimilated internal thread () is a helical special tapered hole () in an inner surface of a cylindrical body (). 1699719395969713646299591962959669121. A connection structure of an olive-shape bidirectional tapered external thread with greater left taper and smaller right taper and a traditional thread , i.e. , a connection structure of an external thread of an olive-like (left taper is greater than right taper) asymmetric bidirectional tapered thread and the traditional thread , comprising: an internal thread () and an external thread () in thread fit , wherein a complete unit thread of the olive-like (left taper is greater than right taper) asymmetric bidirectional tapered external thread () is a helical asymmetric bidirectional truncated cone body () in an olive-like shape () and with a left taper () greater than a right taper () and with a large middle and two small ends; the external thread () is a helical bidirectional truncated cone body () on an outer surface of a columnar body () and exists in the form of “material entity”; a thread body of the internal thread () is a helical special tapered hole () assimilated from an original traditional internal thread () on an inner surface of a cylindrical body () resulting from engaged contact with a ...

BOLT AND NUT CONNECTION STRUCTURE OF OLIVE-SHAPE BIDIRECTIONAL TAPERED THREAD WITH SMALLER LEFT TAPER AND GREATER RIGHT TAPER

The present invention belongs to the technical field of device access, and relates to a bolt and nut connection structure of an olive-shape bidirectional tapered thread with smaller left taper and greater right taper, which solves the problems of poor self-positioning and self-locking performance of existing threads, wherein an internal thread () is a bidirectional tapered hole () (non-entity space) on an inner surface of a cylindrical body (); an external thread () is a bidirectional truncated cone body () (material entity) on an outer surface of a columnar body (), and a complete unit thread is a bidirectional tapered body in an olive-like shape () with a left taper () smaller than a right taper () and with a large middle and two small ends.

CONNECTION PAIR FOR SYMMETRIC BIDIRECTIONAL TAPERED THREAD IN OLIVE-LIKE SHAPE

The present disclosure belongs to the field of general technology of device, and particularly relates to a connection pair for a symmetric bidirectional conical thread in an olive-like shape, which solves the problems such as poor self-positioning and self-locking properties of a screw thread in the prior art. The symmetric bidirectional tapered thread connection pair is characterized in that an internal thread () is a bidirectional tapered hole () (a non-entity space) in an internal surface of a cylindrical body (), an external thread () is a bidirectional truncated cone body () in an external surface of a columnar body (), and each of the complete unit threads thereof is a bidirectional tapered body in an olive-like shape (), with a large middle and two small ends and the same and/or approximately the same size in a left taper () and a right taper (). 19619393. A connection pair for a symmetric bidirectional tapered thread in an olive-like shape , comprising an internal thread () and an internal thread () in mutual thread fit , wherein a complete unit thread of the symmetric bidirectional tapered thread () in an olive-like shape () is a symmetric bidirectional helical tapered body having an olive-like () , with a large middle and two small ends;{'b': 93', '41', '71, 'the symmetric bidirectional helical cone in an olive-like shape () comprises a bidirectional tapered hole () and/or a bidirectional truncated cone body ();'}{'b': 6', '41', '2', '9', '71', '3, 'a thread body of the internal thread () is provided with the bidirectional tapered helical hole () in an internal surface of a cylindrical body () and exists in the form of a “non-entity space”, and a thread body of the external thread () is provided with the bidirectional helical truncated cone body () in an external surface of a columnar body () and exists in the form of a “material entity”;'}{'b': 95', '1', '96', '2, 'a left taper () formed by a left conical surface of the asymmetric bidirectional tapered ...

CONNECTION STRUCTURE OF INTERNAL THREAD OF ASYMMETRIC BIDIRECTIONAL TAPERED THREAD IN OLIVE-LIKE SHAPE AND TRADITIONAL SCREW THREAD

The present invention belongs to the field of general technology of device, and particularly relates to a connection structure of an internal thread of an asymmetric bidirectional tapered thread in an olive-like shape and a traditional screw thread, which solves the problems such as poor self-positioning and self-locking properties of the existing screw thread. The connection structure is characterized, in that an internal thread () is a bidirectional helical tapered hole () (a non-entity space) in an internal surface of a cylindrical body (), with a complete unit thread having a left taper () greater than and/or less than a right taper (), and is capable of assimilating a traditional external thread (). 196. A connection structure of an internal thread of an asymmetric bidirectional tapered thread in an olive-like shape and a traditional screw thread , comprising an external thread () and an internal thread () in mutual threaded fit , wherein{'b': 6', '93', '41', '93', '95', '96', '95', '96', '95', '96, 'a complete unit thread of the asymmetric bidirectional tapered internal thread () in an olive-like shape () is a helical asymmetric bidirectional tapered hole () in an olive-like shape (), with a large middle and two small ends, and with different taper sizes of a left taper () and a right taper (), comprising two taper structure forms in which the left taper () is greater than the right taper () and the left taper () is less than the right taper ();'}{'b': 6', '41', '2', '9', '7', '9', '3', '6', '6, 'a thread, body of the internal thread () is a helical bidirectional tapered hole () in an internal surface of a cylindrical body () and, exists in the form of a “non-entity space”, and a thread body of the external thread () is a special helical tapered body () formed in a way that a thread body of the traditional external thread () on an external surface of a columnar body () is assimilated by the bidirectional tapered internal thread () due to engaging contact with ...

DUMBBELL-LIKE BIDIRECTIONAL TAPERED BOLT-NUT THREADED CONNECTION STRUCTURE WITH LARGE-CONICITY LEFT SIDE AND SMALL-CONICITY RIGHT SIDE

Disclosed is a dumbbell-like bidirectional tapered bolt-nut threaded connection structure with a large-conicity left side and a small-conicity right side, which solves the problems that the existing thread is poor in the self-positioning and self-locking property. The internal thread () is a cylindrical body () with a bidirectional tapered hole () on the inner surface (non-solid space). The external thread () is a columnar body () with a bidirectional truncated cone () on the outer surface (material entity). The whole unit thread is a spiral dumbbell-like () bidirectional tapered body with a small middle part and two large ends, the conicity of the left side () is greater than the conicity of the right side (). The performance mainly depends on the taper surfaces and the conicity size of the threads matching with each other. 19691949596417162419371195296959669121. A dumbbell-like bidirectional tapered bolt-nut threaded connection structure with a large-conicity left side and a small-conicity right side , which is a dumbbell-like (the conicity of the left side is greater than the conicity of the right side) asymmetric bidirectional tapered bolt-nut threaded connection structure , comprising an external thread () and an internal thread () in screw-thread fit with the external thread (); wherein the whole unit thread of the dumbbell-like (the conicity of the left side is greater than the conicity of the right side) asymmetric bidirectional tapered thread () is a spiral dumbbell-like () asymmetric bidirectional tapered body with a small middle part and two large ends; the conicity of the left side () is greater than the conicity of the right side () , and the tapered body comprises a bidirectional tapered hole () and/or a bidirectional truncated cone (); the thread of the internal thread () is a cylindrical body () with a spiral bidirectional tapered hole () on the inner surface and exists in the form of non-solid space; the thread of the external thread () is a ...

CONNECTION STRUCTURE HAVING DUMBBELL-SHAPED BIDIRECTIONAL TAPERED EXTERNAL THREAD AND TRADITIONAL THREAD HAVING LARGE LEFT TAPER AND SMALL RIGHT TAPER

Disclosed is a connection structure having a dumbbell-shaped bidirectional tapered external thread and a traditional thread having a large left taper and a small right taper. The connection structure includes an external thread () which is a dumbbell-shaped () bidirectional truncated cone () having a small middle and two large ends, wherein an outer surface of a columnar body () is a spiral and the left taper () of a complete unit body thread is larger than the right taper (), having the ability to assimilate a traditional internal thread (). After being assimilated, the internal thread () is a special tapered hole () of a cylindrical body () an inner surface of which is a spiral. The present invention solves the problems of existing threads having poor self-positioning and self-locking, the performance mainly depending on the conical surface and taper size of the thread body.

CONNECTION STRUCTURE OF INTERNAL THREAD OF DUMBELL-LIKE SHAPED SYMMETRICAL BIDIRECTIONAL TAPERED THREAD AND TRADITIONAL THREAD

The invention belongs to the field of general technology of device, and relates to a connection structure of an internal thread of a dumbbell-like shaped symmetrical bidirectional tapered thread and a traditional thread, which solves the problem of poor self-positioning and self-locking of existing threads. An internal thread () is a dumbbell-like shaped bidirectional tapered hole () (non-entity space) helically distributed on an inner surface of a cylindrical body (), with a complete unit thread having a left taper () same as and/or approximately same as a right taper (), and has an ability to assimilate a traditional external thread (); and the traditional external thread () after assimilation is a helical special tapered body () on an outer surface of a columnar body (). 196. A connection structure of an internal thread of a dumbbell-like shaped symmetrical bidirectional tapered thread and a traditional thread , comprising an external thread () and an internal thread () in mutual thread fit , wherein:{'b': 6', '41, 'a complete unit thread of the dumbbell-like shaped symmetrical bidirectional tapered internal thread () is a helical dumbbell-like shaped symmetrical bidirectional tapered hole () small in the middle and large in both ends;'}{'b': 6', '41', '2, 'a thread body of the internal thread () is the helical bidirectional tapered hole () on an inner surface of a cylindrical body (), and exists in a form of a “non-entity space”;'}{'b': 9', '7', '3', '9', '6', '6, 'a thread body of the external thread () is a helical special tapered body () on an outer surface of a columnar body () formed by a tooth body of the original traditional external thread () which is assimilated by the bidirectional tapered internal thread () due to cohesive contact with the bidirectional tapered internal thread (), and exists in a form of a “material entity”;'}{'b': 95', '6', '1', '96', '6', '2, 'a left taper () is formed on a left conical surface of the symmetrical bidirectional ...

CONNECTION STRUCTURE OF BOLT AND NUT HAVING DUMBELL-LIKE SHAPED ASYMMETRICAL BIDIRECTIONAL TAPERED THREAD

The disclosure belongs to the field of general technology of device, and relates to a connection structure of a bolt and a nut having dumbbell-like shaped asymmetrical bidirectional tapered thread, which solves the problem of poor self-positioning and self-locking of existing threads. An internal thread () is a bidirectional tapered hole () (non-entity space) on an inner surface of, a cylindrical body (), an external thread () is a bidirectional tapered cone body () (material entity) on an outer surface of a columnar body (), and a complete unit thread is a helical dumbbell-like shaped asymmetrical bidirectional tapered body small in the middle and large in both ends and having a left taper () greater than and/or small than a right taper (). 196. A connection structure of a bolt and a nut having dumbbell-like shaped asymmetrical bidirectional tapered thread , comprising an external thread () and an internal thread () in mutual thread fit , wherein:{'b': 1', '41', '71, 'a complete unit thread of the dumbbell-like shaped asymmetrical bidirectional tapered thread () is a helical dumbbell-like shaped asymmetrical bidirectional tapered body small in the middle and large in both ends and comprising a bidirectional tapered hole () and/or a bidirectional truncated cone body ();'}{'b': 41', '71', '95', '96', '95', '96', '95', '96, 'the bidirectional tapered hole () and/or the bidirectional truncated cone body () have/has a left taper () and a right taper (), wherein the left taper () is greater than the right taper () and/or the left taper () is smaller than the right taper (){'b': 6', '41', '2, 'a thread body of the internal thread () is the helical bidirectional tapered hole () on an inner surface of a cylindrical body (), and exists in a form of a “non-entity space”;'}{'b': 9', '71', '3, 'a thread body of the external thread () is the helical bidirectional truncated cone body () on an outer surface of a columnar body (), and exists in a form of a “material entity”;'}{'b': ...

Connection structure of internal thread of dumbell-like shaped asymmetrical bidirectional tapered thread and traditional thread

The disclosure belongs to the field of general technology of device, and relates to a connection structure of an internal thread of a dumbbell-like shaped asymmetrical bidirectional tapered thread and a traditional thread, which solves the problem of poor self-positioning and self-locking of existing threads. An internal thread (6) is a dumbbell-like shaped bidirectional tapered hole (41) (non-entity space) helically distributed on an inner surface of a cylindrical body (2), with a complete unit thread small in the middle and large in both ends and having a left taper (95) greater than and/or smaller than a right taper (96), and has an ability to assimilate a traditional external thread (9); and the traditional external thread (9) after assimilation is a helical special tapered body (7) on an outer surface of a columnar body (3).

Connection structure of bolt and nut with dumbbell shape bidirectional tapered thread having small left taper and large right taper

The disclosure relates to the general technology of devices, and in particular relates to a connection structure of bolt and nut with dumbbell shape bidirectional tapered thread having small left and large right taper. The disclosure solves the problems of poor self-positioning and poor self-locking of existing thread. The disclosure is characterized that an internal thread (6) is a bidirectional tapered hole (41) in an inner surface of a cylindrical body (2) (non-solid space) and an external thread (9) is a bidirectional truncated cone body (71) in an the outer surface of a columnar body (3) (material entity), and each of the complete unit threads thereof is a dumbbell-like shape (94) bidirectional conical body with a left-side taper (95) smaller than a right-side taper (96) in the form of a helical and having a small middle and two large ends.

Wind turbine

Provided is a wind turbine with a nacelle including a mounting structure to which at least one facing element is attached and/or with a hub including a mounting structure to which at least one facing element is attached, which at least one facing element is attached with several fixation devices, whereby each fixation device includes a bolt with a bolt head at one end, a threaded shaft extending through an opening in the facing element and the mounting structure and a tool mount for attaching a tool for holding the bolt, and a nut screwed on the threaded shaft, with the bolt head positioned at the outside of the nacelle or the hub and the tool mount and nut positioned at the inside of the nacelle or the hub.

STAKING BOLT

The staking bolt of the present invention includes a head and a shank having an external thread . At the upper end of the shank , a ring-shaped protrusion and a ring groove located closer to the head relative to the ring-shaped protrusion are formed. The head is flat, and on the bearing face , a whirl-stop protrusion having a plurality of radially extending arms protrudes with a thickness oft. The minimum diameter D between respective arms is larger than the outer diameter d of the ring-shaped protrusion , and t×(D−d)/2 which is the longitudinal cross-sectional area A of the minimum diameter portion of the whirl-stop protrusion is equal to or greater than the longitudinal cross-sectional area of the ring groove 1. A staking bolt comprising:a head having a bearing face;a shank having an external thread;wherein the shank includes a ring-shaped protrusion formed at an upper end of the shank and a ring groove located closer to the head relative to the ring-shaped protrusion,wherein the head is flat and includes on its bearing face, a whirl-stop protrusion having a plurality of radially extending arms that protrude a thickness oft from the bearing face,wherein a minimum diameter D between respective arms of the whirl-stop protrusion is larger than an outer diameter d of the ring-shaped protrusion, andwherein t×(D−d)/2, which is a longitudinal cross-sectional area A of a minimum diameter portion of the whirl-stop protrusion, is equal to or greater than a longitudinal cross-sectional area of the ring groove.212. The staking bolt according to claim 1 , wherein an outer diameter d of the shank at a portion between the ring-shaped protrusion and the external thread is equal to or less than a root diameter d of the external thread. This application is a continuation of International Application No. PCT/JP2017/043502 filed Dec. 4, 2017, which designated the United States, and claims the benefit under 35 USC § 119(a)-(d) of Japanese Application No. 2017-106171 filed May 30, 2017 ...

OFFSET WASHER FOR ADJUSTING CAMBER ANGLE

An offset washer for adjusting the camber angle in a vehicle is disclosed. The offset washer includes a body having an upper surface and a lower surface, an aperture extending through the body, and a protrusion having a longitudinal width different than the body thickness. The protrusion is configured to be inserted into a receiving aperture on a flange of a vehicle suspension system. The protrusion is defined by a formed upset defining a step in the material along a portion of the edge of the aperture, which is formed by upsetting the portion of the edge of the aperture when forming the aperture. 130. An offset washer for adjusting camber angle in a vehicle comprising:{'b': '42', 'a body having an upper surface and a lower surface;'}{'b': 43', '42, 'an aperture extending through the body ;'}{'b': '46', 'a spacing protrusion having a longitudinal width different than the body thickness from the upper surface to the lower surface with the spacing protrusion extending from the lower surface, wherein the spacing protrusion is configured to be inserted into a receiving aperture on a flange of a vehicle suspension system.'}2. The offset washer of claim 1 , wherein the spacing protrusion is defined by a step in the material along a portion of the edge of the aperture.3. The offset washer of claim 2 , wherein the step in the material is formed by upsetting the portion of the edge of the aperture when forming the aperture.4. The offset washer of claim 1 , wherein the longitudinal width is greater than the thickness from the upper surface to the lower surface.5. The offset washer of claim 1 , wherein the longitudinal width is less than the thickness from the upper surface to the lower surface.6. The offset washer of claim 1 , further comprising a fastener received through the aperture claim 1 , with the fastener having a neck and a lobe along a length of the fastener claim 1 , wherein the neck has a neck diameter that is smaller than the lobe having a lobe diameter.7. The ...

FASTENER AND FASTENER INSTALLATION TOOL

A fastening system including a fastener and a fastener installation tool. The fastener includes a pin member having an elongated shank portion with a threaded portion, a stop shoulder located at an end of the threaded portion, and a pull portion extending from the stop shoulder. The stop shoulder includes an outer rim and an inner annular wall. The inner annular wall and the inner face form an annular recess. The fastener installation tool includes a puller having a front face. The recess of the fastener is adapted to receive the front face of the fastener installation tool when the puller engages the pull portion of the pin member and facilitates alignment of teeth of the installation tool and pull grooves of the pin member. 1. A fastening system , comprising:a fastener having a pin member including an elongated shank portion having a threaded portion, a stop shoulder located at an end of the threaded portion, and a pull portion extending from the stop shoulder, wherein the stop shoulder includes an outer rim and an inner annular wall which form an annular recess; anda fastener installation tool having a puller with a front face, wherein the annular recess of the fastener is adapted to receive the front face of the fastener installation tool when the puller engages the pull portion of the pin member.2. The fastening system of claim 1 , wherein the front face of the puller of the fastener installation tool is angled at an angle measured transverse to a longitudinal axis of the puller.3. The fastening system of claim 2 , wherein the receiving recess of the fastener includes a semi-circular-shaped cross section.4. The fastening system of claim 2 , wherein the receiving recess of the fastener includes a square-shaped cross section.5. The fastening system of claim 2 , wherein the pull portion of the pin member includes at least one pull groove claim 2 , and the puller of the fastener installation tool includes at least one tooth that is sized and shaped to engage the at ...

SCREW FOR AN ELECTRICALLY CONTACTING CONNECTION

A screw for an electrically contacting connection includes a screw head and a thread having a thread profile with a first thread flank facing the screw head and a second thread flank facing away from the screw head. The first thread flank is continuously curved from a radially inner bottom region to a radially outer run-out region in such a way that first angles between the center axis and local tangents, which lie on the first thread flank and intersect the center axis of the screw, increase radially outward along this direction. The second thread flank and the center axis include a second angle, which lies below the maximum first angle, in the opposite direction of the first angle. The run-out region continuously connects the first thread flank and the second thread flank to one another and is completely rounded. 1. A screw for an electrically contacting connection , the screw comprising:a screw head; anda thread having a thread profile with a first thread flank facing the screw head and a second thread flank facing away from the screw head,wherein the first thread flank is continuously curved from a radially inner bottom region to a radially outer run-out region in such a way that first angles between the center axis and local tangents, which lie on the first thread flank and intersect the center axis of the screw, increase radially outward along this direction,wherein the second thread flank and the center axis enclose a second angle, which lies below the maximum first angle, in the opposite direction of the first angle, andwherein the run-out region continuously connects the first thread flank and the second thread flank to one another and is completely rounded.2. The screw of claim 1 , wherein the first angle continuously increases from the bottom region to the run-out region.3. The screw of claim 1 ,wherein the first thread flank comprises a reinforcement region and an adjacent functional region radially outward thereof,wherein the minimal first angle of the ...

OLIVE-SHAPED ASYMMETRIC BIDIRECTIONAL TAPERED THREAD CONNECTION PAIR HAVING LARGE LEFT TAPER AND SMALL RIGHT TAPER

The disclosure belongs to the technical field of general technology of devices, and relates to an olive-shaped asymmetric bidirectional tapered thread connection pair having a large left taper and a small right taper, solving the problems of poor self-positioning and self-locking properties of the existing thread. An internal thread () is a bidirectional tapered hole () (non-entity space) on the inner surface of the cylindrical body (), an external thread () is a bidirectional truncated cone body () (material entity), the complete unit threads are both helical olive-like () shaped special bidirectional tapered bodies which have a left taper () being a right taper () and is large in the middle and small in two ends. 19619395964171. An olive-shaped asymmetric bidirectional tapered thread connection pair having a large left taper and a small right taper , namely , an olive-like (left taper is larger than right taper) shaped asymmetrical bidirectional tapered thread connection pair , comprising: an external thread () and an internal thread () which are in mutual thread fit , wherein the complete unit thread of the olive-like (left taper is larger than right taper) shaped asymmetric bidirectional tapered internal thread () is a helical olive-like () shaped asymmetric bidirectional tapered thread which is large in the middle and small in two ends , has a left taper () being larger than a right taper () and comprises a bidirectional tapered hole () and/or bidirectional truncated cone body ();{'b': 6', '41', '2', '9', '71', '3, 'the thread body of the internal thread () is presented by a helical bidirectional tapered hole () on the inner surface of the cylindrical body () and exists in a form of “non-entity space”, the thread body of the external thread () is presented by a helical bidirectional truncated cone body () on the outer surface of the columnar body () and exists in a form of “material entity”;'}{'b': 95', '1', '96', '2', '95', '96, 'the left conical surface of ...

Exchangeable wheel stud

A wheel stud includes a fixing segment, which has a first external thread, and a receiving segment, which has a second external thread. Here, the first external thread runs opposite in direction to the second external thread. More particularly, the wheel stud is configured to be connected to a wheel hub through the fixing segment, where the wheel hub includes at least one receiver bore having an internal thread corresponding to the first external thread.

PLUG FOR CLOSING AN APERTURE DEFINED IN MACHINE COMPONENT

A plug for closing an aperture defined in a machine component includes a flange, a first portion, and a second portion. The first portion includes a first set of threads configured at a first pitch to engage with threads on the machine component, and a second set of threads configured at a second pitch to lock with the threads on the machine component and retain the first portion within the aperture. The second portion includes a neck portion, and a bolt head extending from the neck portion. The neck region is configured to withstand a pre-determined maximum torque load. The bolt head is operable to threadably engage the first set of threads and the second set of threads with the threads of the machine component and allow shearing of the neck portion if a torque applied on the bolt head exceeds the pre-determined maximum torque load. 1a flange having a first side and a second side, wherein the first side of the flange is configured to abut an outer surface of the machine component disposed adjacent to the aperture; a first set of threads distally located from the first side of the flange, the first set of threads configured at a first pitch to threadably engage with the threads on the machine component;', 'a second set of threads continuously formed with the first set of threads and located proximal to the first side of the flange, wherein the second set of threads are configured at a second pitch that is different than the first pitch, the second set of threads configured to lock with the threads on the machine component so as to retain the first portion within the aperture; and, 'a first portion extending axially away from the first side of the flange, wherein the first portion includes a neck portion disposed on the second side of the flange, wherein the neck region is configured to withstand a maximum torque load; and', 'a bolt head extending from the neck portion, wherein the bolt head is operable to threadably engage the first set of threads and the second set ...

MOVEMENT-COMPENSATING PLATE ANCHOR

A system configured to anchor a cover plate over an interface formed between substantially coplanar substrates includes a sleeve capable of being anchored in a first substrate; a spring located in the sleeve; a post located in communication with the spring; and a fastener secured onto the post. A head of the post is located in the sleeve, and an end of the post opposite the head of the post extends out of the sleeve to receive the fastener. The fastener is secured onto the post over the cover plate located on the first substrate such that the cover plate extends over the interface formed between the first and second substrates when they are positioned to be substantially coplanar. 1. A system configured to anchor a cover plate over an interface formed between substantially coplanar substrates , the system comprising:a sleeve anchorable in a first substrate;a spring located in the sleeve;a post located in communication with the spring, a head of the post being located in the sleeve, and an end of the post opposite the head extending out of the sleeve; anda fastener secured onto a portion of the post extending out of the sleeve;wherein the fastener is secured onto the post over the cover plate located on the first substrate, the cover plate extending over the interface formed between the first substrate and a second substrate positioned substantially coplanar to the first substrate.2. The system of claim 1 , further comprising a securing mechanism configured to anchor the sleeve in the first substrate.3. A covering system configured to cover a gap between two substantially coplanar substrates claim 1 , the covering system comprising:a cover plate locatable over a gap defined between a first substrate and a second substrate substantially coplanar with the first substrate; and a sleeve located in the first substrate;', 'a spring located in the sleeve;', 'a post located in communication with the spring, a head of the post being located in the sleeve, and an end of the ...

Screw Connection For A Non-Shiftable Multi-Plate Clutch, And Multi-Plate Clutch

Screw connection for a non-shiftable multiple plate clutch with a clamping bolt, a bolt nut cooperating with the clamping bolt, and a clamping bushing which likewise cooperates with the clamping bolt. A seat between the clamping bolt and clamping bushing has at least one gradation such that a first cylindrical seat surface having a first diameter is formed at a first side of the respective gradation and a second cylindrical seat surface having a second diameter is formed at a second side of the respective gradation. 110.-. (canceled)11. A screw connection for a non-shiftable multiple plate clutch comprising:a clamping bolt;a bolt nut threadingly connectable to the clamping bolt;a clamping bushing configured to be arranged on the clamping bolt; anda seat between the clamping bolt and clamping bushing having at least one gradation such that a first cylindrical seat surface having a first diameter is formed at a first side of the respective gradation and a second cylindrical seat surface having a second diameter is formed at a second side of the respective gradation.12. The screw connection according to claim 11 , whereinthe first cylindrical seat surface faces a clamping bolt head of the clamping bolt and the second cylindrical seat surface faces the bolt nut, andthe first diameter of the first cylindrical seat surface is greater than the second diameter of the second cylindrical seat surface.131112. The screw connection according to claim 11 , wherein the at least one gradation of the seat that separates the first cylindrical seat surface and second cylindrical seat surface is formed by gradations ( claim 11 , ) of the clamping bushing and the clamping bolt.14. The screw connection according to claim 11 , wherein an interference relative to the clamping bushing is formed at least in a region of the first cylindrical seat surface of the clamping bolt.15. The screw connection according to claim 11 , wherein the clamping bushing is a plate stack support.16. The screw ...

LOCKING PIN

Subject matter of the disclosure is a locking pin arrangement with a basic element for receiving an insert and a fall-proof locking pin for fixing the insert in the basic element. The locking pin is at least partially inserted into a borehole of the basic element and is pushed towards an opening of the borehole by a spring. The locking pin has a guiding surface for axial guidance in the borehole, an outer thread and a constriction positioned between the outer thread and the guiding surface, wherein the diameter of the outer thread is smaller than the diameter of the guiding surface and the diameter of the locking pin at the constriction is smaller than the diameter of the outer thread. Further, the arrangement comprises an inner thread going from the wall of the borehole into the space formed by the constriction. 1. Locking pin arrangement with a basic element for receiving an insert and a locking pin for fixing the insert in the basic element , wherein the locking pin is at least partially inserted into a borehole of the basic element and is pressed towards an insertion opening of the borehole by a spring positioned between a first end of the locking pin and a bearing surface of the borehole , a second end of the locking pin being shaped for fixing the insert ,wherein the locking pin has a guiding surface for axial guidance in the borehole, an outer thread and a constriction between the outer thread and the guiding surface, the outer thread being positioned between the first end of the locking pin and the constriction, the diameter of the outer thread is smaller than the diameter of the guiding surface and the diameter of the locking pin on the constriction is smaller than the diameter of the outer thread, and in that an inner thread matching the outer thread extends into the space formed by the constriction from the wall of the borehole.2. Locking pin arrangement according to claim 1 , wherein a cylindrical bushing is arranged between the locking pin and the ...

Fastener Device

A fastener device, adapted to be installed on a wall through an aperture of the wall, has an inner stud that is sized to fit through the aperture of the wall, and an outer stud that engages the inner stud. The inner stud has a securing mechanism on an outer surface of the inner stud. A spiral structure has an inner diameter that is sized to receive the inner stud, wherein the inner diameter engages with the securing mechanism of the inner stud. The outer fastener engages the inner stud to compress the spiral structure into a washer-like structure. 1. A fastener device adapted to be installed on a wall through an aperture of the wall , the aperture having an aperture diameter , the fastener device comprising:an inner stud that is sized to fit through the aperture of the wall, the inner stud having a securing mechanism on an outer surface of the inner stud;a spiral structure having an inner diameter that is sized to receive the inner stud, wherein the inner diameter engages with the securing mechanism of the inner stud such that the spiral structure is fixed in place and will not rotate relative to the inner stud, to facilitate insertion of the spiral structure through the aperture of the wall; andan outer fastener that engages the inner stud to compress the spiral structure into a flattened washer-like structure behind the wall.2. The fastener of claim 1 , wherein the spiral structure engages with the inner stud at the inner diameter via an internally threaded inner surface.3. The fastener of claim 1 , wherein the spiral structure is in the form of a spiral that includes a first end having an inner diameter that is larger than the aperture in the wall claim 1 , a middle section that spirals inwardly to smaller diameters to a second end having the inner diameter which is attached to the inner stud.4. The fastener of claim 1 , wherein the inner stud is in the form of a bolt that includes a head claim 1 , and an externally threaded shank extending from the head to a ...

CONNECTION STRUCTURE OF INTERNAL THREAD OF SYMMETRIC BIDIRECTIONAL TAPERED THREAD IN OLIVE-LIKE SHAPE AND TRADITIONAL SCREW THREAD

The present invention belongs to the field of general technology of device, and particularly relates to a connection structure of an internal thread of a symmetric bidirectional tapered thread in an olive-like shape and a traditional screw thread, which solves the problems such as poor self-positioning and self-locking properties of the existing screw thread. The connection structure is characterized in that an internal thread () is in a helical form on an internal surface of a cylindrical body () and a complete unit thread is a bidirectional helical tapered hole () (a non-entity space) in an olive-like shape () in which a left taper () and a right taper () are the same and/or approximately the same. 196. A connection structure of an internal thread of a symmetric bidirectional tapered thread in an olive-like shape and a traditional screw thread , comprising an external thread () and an internal thread () in mutual threaded fit , wherein{'b': 6', '93', '41', '93, 'a complete unit thread of the symmetric bidirectional tapered internal thread () in an olive-like shape () is a helical symmetric bidirectional tapered hole () in an olive-like shape (), with a large middle and two small ends;'}{'b': 6', '41', '2', '9', '7', '9', '3', '6', '6, 'a thread body of the internal thread () is a helical bidirectional tapered hole () in an internal surface of a cylindrical body () and exists in the form of a “non-entity space”, and a thread body of the external thread () is a special helical tapered body () formed in a way that a thread body of the traditional external thread () on an external surface of a columnar body () is assimilated by the bidirectional tapered internal thread () due to cohesive contact with the bidirectional tapered internal thread (), and the thread body exists in the form of a “material entity”;'}{'b': 95', '6', '1', '96', '2', '95', '96, 'a left taper () formed by a left conical surface of the bidirectional tapered internal thread () corresponds to a ...

DUMBBELL-SHAPED ASYMMETRIC BIDIRECTIONAL TAPERED THREAD CONNECTION PAIR HAVING LAGER LEFT TAPER AND SMALL RIGHT TAPER

Disclosed is a dumbbell-shaped asymmetric bidirectional tapered thread connection pair having lager left taper and a small right taper. The internal thread () of the thread connection pair () is a bidirectional taper hole () on the inner surface of a cylindrical base body () and external thread () is a bidirectional truncated cone body () on the outer surface of a columnar base body (). Complete unit body threads are both helical, dumbbell-shaped (), special bidirectional cone bodies each having a lager left taper () than right taper () and being small in the middle and large at both ends. The performance mainly depends on the conical surfaces and the tapers of the threaded bodies matching with each other. 196919596417162419371951962959669121. A dumbbell-shaped asymmetric bidirectional tapered threaded connection pair having lager left taper and a small right taper , or a dumbbell like (a left taper is greater than a right taper) asymmetric bidirectional tapered thread connection pair comprising an external thread () and an internal thread () threaded to the external thread (); wherein a thread of the complete body of the dumbbell-shaped (left taper is greater than the right one) asymmetric bidirectional tapered thread () is a spiral shaped cone with small middle ends and large ends and a left taper () is larger than the right taper () , including bidirectional taper hole () and/or bidirectional truncated cone body (); a threaded body of the internal thread () is a cylindrical base body () with a spiral bidirectional taper hole () on the inner surface and presented in the form of non-solid space; the threaded body of the external thread () is a cylindrical matrix () with a spiral bidirectional truncated cone body () on outer surface and presented in the form of a material solid; the left taper of the asymmetric bidirectional cone forms the left taper () corresponding to a first taper angle (α) , and the right cone forms the right taper () corresponding to the second ...

CONNECTION STRUCTURE OF DUMBELL-LIKE SHAPED BIDIRECTIONAL TAPERED EXTERNAL THREAD HAVING SMALL LEFT TAPER AND LARGE RIGHT TAPER AND TRADITIONAL THREAD

The disclosure belongs to the field of general technology of device, and relates to a connection structure of a dumbbell-like shaped bidirectional tapered external thread having small left taper and large right taper and a traditional thread, which solves the problem of poor self-positioning and self-locking of existing threads. An external thread () is a dumbbell-like shaped bidirectional tapered cone body () (material entity) helically distributed on an outer surface of a columnar body (), with a complete unit thread small in the middle and large in both ends and having a left taper () smaller than a right taper (), and has an ability to assimilate a traditional internal thread (), and the traditional internal thread () after assimilation is a helical special tapered hole () on an inner surface of a cylindrical body (). 169. A connection structure of a dumbbell-like shaped bidirectional tapered external thread having small left taper and large right taper and a traditional thread , comprising an internal thread () and an external thread () in mutual thread fit , wherein:the connection structure is a connection structure of an external thread of a dumbbell-like shaped (a left taper smaller than a right taper) asymmetrical bidirectional tapered thread and a traditional thread;{'b': 9', '71', '95', '96, 'a complete unit thread of the dumbbell-like shaped (the left taper smaller than the right taper) asymmetrical bidirectional tapered external thread () is a helical dumbbell-like shaped asymmetrical bidirectional truncated cone body () small in the middle and large in both ends and having a left taper () smaller than a right taper ();'}{'b': 9', '71', '3, 'a thread body of the external thread () is the helical bidirectional tapered hole () on an outer surface of a columnar body (), and exists in a form of a “material entity”;'}{'b': 6', '4', '2', '6', '9', '9, 'a thread body of the internal thread () is a helical special tapered hole () on an inner surface of a ...

CONNECTION STRUCTURE OF BOLT AND NUT HAVING DUMBELL-LIKE SHAPED SYMMETRICAL BIDIRECTIONAL TAPERED THREAD

The disclosure belongs to the field of general technology of device, and relates to a connection structure of a bolt and a nut having dumbbell-like shaped symmetrical bidirectional tapered thread, which solves the problem of poor self-positioning and self-locking of existing threads. An internal thread () is a bidirectional tapered hole () (non-entity space) on an inner surface of a cylindrical body (), an external thread () is a bidirectional tapered cone body () (material entity) on an outer surface of a columnar body (), and a complete unit thread is a helical dumbbell-like shaped symmetrical bidirectional tapered body small in the middle and large in both ends and having a left taper () same as and/or approximately same as a right taper (). 196. A connection structure of a bolt and a nut having dumbbell-like shaped symmetrical bidirectional tapered thread , comprising an external thread () and an internal thread () in mutual thread fit , wherein:{'b': 1', '41', '71, 'a complete unit thread of the dumbbell-like shaped symmetrical bidirectional tapered thread () is a helical dumbbell-like shaped symmetrical bidirectional tapered body small in the middle and large in both ends and comprising a bidirectional tapered hole () and/or a bidirectional truncated cone body ();'}{'b': 6', '41', '2, 'a thread body of the internal thread () is the helical bidirectional tapered hole () on an inner surface of a cylindrical body (), and exists in a form of a “non-entity space”;'}{'b': 9', '71', '3, 'a thread body of the external thread () is the helical bidirectional truncated cone body () on an outer surface of a columnar body (), and exists in a form of a “material entity”;'}{'b': 95', '1', '96', '2, 'a left taper () is formed on a left conical surface of the symmetrical bidirectional tapered body and corresponds to a first taper angle (α), and a right taper () is formed on a right conical surface of the symmetrical bidirectional tapered body and corresponds to a second taper ...

Connection structure of external thread of dumbell-like shaped symmetrical bidirectional tapered thread and traditional thread

The invention belongs to the field of general technology of device, and relates to a connection structure of an external thread of a dumbbell-like shaped symmetrical bidirectional tapered thread and a traditional thread, which solves the problem of poor self-positioning and self-locking of existing threads. An external thread (9) is a dumbbell-like shaped bidirectional tapered cone body (71) (material entity) helically distributed on an outer surface of a columnar body (3), with a complete unit thread having a left taper (95) same as and/or approximately same as a right taper (96), and has an ability to assimilate a traditional internal thread (6), and the traditional internal thread (6) after assimilation is a helical special tapered hole (4) on an inner surface of a cylindrical body (2).

FASTENER INCLUDING A TRANSITION ZONE AND METHOD OF USE THEREOF

A fastener and a method of fastening are provided. The fastener can comprise a first end, an oppositely disposed second end, and an elongate portion intermediate the first end and the second end. The elongate portion comprises a first region adjacent to the first end and a second region adjacent to the second end. The first region extends a distance along the elongate portion and has a first diameter. The second region extends a distance along the elongate portion and has a second diameter different from the first diameter. The fastener comprises a transition zone which extends a distance along the elongate portion and connects the first region and the second region. The transition zone comprises a radiused region and a taper region. 1. A fastener comprising:a first end;an oppositely disposed second end; and a generally cylindrical first region adjacent to the first end, extending a distance along the elongate portion, and having a first diameter,', 'a generally cylindrical second region adjacent to the second end, extending a distance along the elongate portion, and having a second diameter different from the first diameter, and', a radiused region comprising a shoulder defining a radius of curvature in a range of 0.0002 inch to 0.02 inch, and', 'a taper region comprising an angled surface defining an angle in a range of 2 degrees to 10 degrees relative to the longitudinal axis., 'a transition zone extending a distance along the elongate portion and connecting the first portion and the second portion, the transition zone comprising'}], 'an elongate portion intermediate the first end and the second end and defining a longitudinal axis of the fastener, wherein the elongate portion comprises'}2. The fastener of claim 1 , wherein the second diameter is less than the first diameter.3. The fastener of claim 2 , wherein the taper region extends a distance along the elongate portion in a range of 0.031 inch to 0.062 inch.4. The fastener of claim 2 , wherein the taper ...

BOLT STRUCTURE HAVING LOCKING UNIT EMBEDDED THEREIN

The present invention relates to a bolt structure including: a base bolt having one side end portion inserted into holes formed at the time when a fixed structure and an object to be fixed are laid on top of each other; a core bolt adapted to be advanceably and retreatably screw-coupled to the base bolt; a nut fastened to the end portion of the base bolt protruding from the holes to maintain the state where the fixed structure and the object to be fixed are laid on top of each other; locking units adapted to selectively pressurize the external surface of the nut to prevent the escape of the base bolt; and a restraint unit adapted to be advanceably and retreatably screw-coupled to the base bolt and come into contact with the end portion of the core bolt to restrain the advancement and retreat of the core bolt. 1. A bolt structure comprising:a base bolt having one side end portion inserted into holes formed at the time when a fixed structure and an object to be fixed are laid on top of each other;a core bolt adapted to pass through the center of the base bolt in a longitudinal direction of the base bolt in such a manner as to be advanceably and retreatably screw-coupled to the base bolt;a nut fastened to the end portion of the base bolt protruding from the holes to maintain the state where the fixed structure and the object to be fixed are laid on top of each other;locking units adapted to selectively pressurize the external surface of the nut according to the advancement and retreat of the core bolt to prevent the escape of the base bolt; anda restraint unit adapted to pass through the center of the base bolt in the longitudinal direction of the base bolt at the opposite side to the core bolt in such a manner as to be advanceably and retreatably screw-coupled to the base bolt and come into contact with the end portion of the core bolt to restrain the advancement and retreat of the core bolt.2. The bolt structure according to claim 1 , wherein the base bolt comprises: ...

Master Mounting and Hydraulic Disk Brake

A master cylinder for a hydraulic brake or clutch, the master cylinder comprising a lever and a cylinder housing in which a piston is slidably arranged, wherein the piston is secured against rotation in the cylinder housing, and a piston position detection device having a signal member asymmetrically arranged with respect to a circumference of the piston and a detection member that is at least one of assigned to the signal member and opposite to the signal member. 1. A master cylinder for a hydraulic brake or clutch , comprising:a lever and a cylinder housing in which a piston is slidably arranged, wherein the piston is secured against rotation in the cylinder housing; and a signal member asymmetrically arranged with respect to a circumference of the piston; and', assigned to the signal member; and', 'opposite to the signal member., 'a detection member that is at least one of], 'a piston position detection device having2. The master cylinder according to claim 1 , wherein the signal member is a bar magnet.3. The master cylinder according to claim 1 , wherein the detection member is a Hall sensor.4. The master cylinder according to claim 1 , wherein the detection member is a reed contact.5. The master cylinder according to claim 1 , wherein the signal member is press-fitted transversely in the piston.6. The master cylinder according to claim 1 , wherein the signal member is flush with a circumferential surface of the piston.7. The master cylinder according to claim 1 , wherein the signal member is cast with the piston.8. The master cylinder according to claim 1 , wherein a surface or flattening is formed at the piston.9. The master cylinder according to claim 8 , wherein a pin is arranged in the housing and defines a fixed rotary position of the piston.10. The master cylinder according to claim 9 , wherein the pin glides along the surface or flattening formed at the piston when the master cylinder is actuated.11. The master cylinder according to claim 9 , wherein the ...

FASTENER STRUCTURE

A fastener structure includes a fastener having a stem portion and at least one movement portion. The stem portion has a fastening section. The movement portion is formed on the stem portion and has a retaining section. With these arrangements, the retaining section of the movement portion can be detachably assembled to a first object and the fastening section can be then detachably assembled or fastened to a second object. In this way, at least two objects can be connected to and disconnected from one another in a quick and repeatable manner. 1. A fastener structure , comprising a fastener having a stem portion and at least one movement portion; the stem portion having a fastening section , and the movement portion being formed on the stem portion and having a retaining section.2. A fastener structure , comprising a fastener having a stem portion and at least one movement portion; the movement portion being formed on the stem portion and having a retaining section.3. The fastener structure according to claim 1 , wherein the stem portion further has a head section claim 1 , such that a recess or a spacing section is formed between the head section and the movement portion to provide a connecting section; and the recess serving as a space that allows the movement portion to be elastically deformable and restorable.4. The fastener structure according to claim 2 , wherein the stem portion further has a head section claim 2 , such that a recess or a spacing section is formed between the head section and the movement portion to provide a connecting section; and the recess serving as a space that allows the movement portion to be elastically deformable and restorable.5. The fastener structure according to claim 1 , further comprising a connecting section formed between the movement portion and the stem portion.6. The fastener structure according to claim 2 , further comprising a connecting section formed between the movement portion and the stem portion.7. The fastener ...

CONNECTION STRUCTURE OF TRADITIONAL THREAD AND EXTERNAL THREAD OUTLINING BIDIRECTIONAL TAPERED OLIVE-LIKE SHAPE HAVING SMALLER LEFT TAPER

A connection structure of a traditional thread and an external thread outlining a bidirectional tapered olive-like shape having a smaller left taper is provided. The external thread () forms a helical shape on the outer surface of a columnar body (), and the complete unit thread forms a bidirectional truncated cone body () in an olive-like shape () having a large middle part and two small ends, and the left taper () being smaller than the right degree (), and the external thread () has the capability of fitting a traditional internal thread (). The olive-like shape () outlines The fitted internal thread () on the inner surface of a cylindrical body () outlines a helical special tapered hole (). The performance mainly depends on the conical surface and the taper of the thread body. 16997193959697136424699951962959669122. A connection structure of a traditional thread and an external thread outlining a bidirectional tapered olive-like shape having a smaller left taper , namely a connection structure of a traditional thread and an external thread outlining an asymmetrically bidirectional tapered olive-like shape having a smaller left taper , comprising an internal thread () and an external thread () threaded with each other , wherein , for the external thread () outlining an asymmetrically bidirectional tapered olive-like shape having a smaller left taper , its complete unit thread forms an asymmetrically bidirectional truncated cone body () in an olive-like shape () having a large middle part and two small ends , the left taper () being smaller than the right taper () , the thread body of the external thread () outlines a bidirectional truncated cone body () in a helical shape on the outer surface of a columnar body () and is present in form of a material entity , the thread body of the internal thread () outlines a special tapered hole () in a helical shape on the inner surface of a cylindrical body () and is present in form of a non-entity space , the special ...

Fastener for Installation Tool for Roof Truss Framing and Construction System

An installation tool fastener is particularly adapted for fastening a top plate to a roof support member and other structural connections and is particularly adapted for use with an installation tool. The installation tool fastener has a head with a maximum head diameter and a recess for coupling with a drive coupler. The shank of the head has an unthreaded portion and a uniform thread which has a major diameter approximately equal to the maximum diameter of the head. The head preferably has a slight taper. The thread preferably has a 7.5 thread per inch pitch and a thread angle from approximately 25° to 45°. In one embodiment for a 6 inch fastener, the thread length is approximately 5 inches and extends along the tapered distal tip.

Pressing-type screw

A pressing-type screw includes a screw-head component, two first drilling-fastening components, and a drilling-head component. The screw-head component is provided with a fastening slot. The two first drilling-fastening components form an axis passing through the center of the screw-head component. The two first drilling-fastening components each has a top end in connection with the screw-head component, and each includes a first thread portion formed on a surface of each of the two first drilling-fastening components and furthest away from the axis. The drilling-head component is in connection with the bottom end of each of the two first drilling-fastening components. A hollow space is formed between the two first drilling-fastening components and the drilling-head component.

Low axial force sealing system

A deformable fastening system that has a deformable member and a mating member that seal together at a reduced clamp load from a conventional fastening system. The deformable member reduces the axial force that is required to install a fastener. The system can be used in connection with the installation of various fasteners with one or more steps under the head of the bolt, or a deformable washer with at least one step or at least one taper. The stepped configuration provides a reduced contact area where the stepped portion contacts the mating member which translates into reduced clamp force range for a given torque. Thus, less axial force is needed to properly install the fastener. Alternatively, a non-deformable bolt with a clinch feature and a stepped underhead forms a seal with deformed staking material when the bolt is staked in the staking material.

Fence connector system and method

A fence connector system and/or method can include a post connection element securable to a fence support structure and comprising an outwardly extending receptacle having a bore hole; a fence receiving arm comprising (a) a head retainable in the receptacle and (b) a shaft extending from the head insertable through the receptacle bore hole and comprising a fence engaging slot adapted to receive and engage a fence wire; and a fence securing mechanism configured to secure the fence wire in the fence engaging slot. The fence receiving arm is rotatable in the receptacle and bore hole about an axis, whereby the fence wire is securable to the fence support structure in any circumferential position about the axis.

EZ fastener series

The novel EZ fastener series is disclosed that a newborn round, square and triangle fasteners would make your next job from uncertain to very positive. The novel EZ fasteners comprise two parts of a male and a female. There are some parallel threads on the male; From the side, the threads look like jagged lines or saw teeth. There are a few movable teeth inside of the female forming a round, square and triangle hole in the center, and the teeth come with opposite saw teeth than the ones on the male. When a male goes into the hole of the female, the movable teeth inside of female will do open and close movement as a locking mechanism, the opposite saw teeth on both part will be griped and locked each other, the male can only go in not out. 1. The novel EZ fastener series comprising the round style fastener , the square style fastener and the triangle style fastener. The round style fastener comprising a male with round body , and a female with a round hole in the center; the square style fastener comprising a male with square body , and a female with a square hole in the center; the triangle style fastener comprising a male with triangle body , and a female with a triangle hole in the center. Novel EZ fastener series would be made of plastic , aluminum , copper and stain less steel.2. The fastener of claim 1 , the body of round style male is in round shape with parallel saw teeth threads on it.3. The fastener of claim 1 , the round style female comes with four movable teeth inside of it forming a round hole in the center claim 1 , there are some space between and around the movable teeth.4. The fastener of claim 1 , the body of square style male is in square shape with parallel saw teeth threads on it.5. The fastener of claim 1 , the square style female comes with four movable teeth inside of it forming a square hole in the center claim 1 , there are some space between and around the movable teeth.61. The fastener of claim claim 1 , the body of triangle style male is ...

CONICAL OIL PAN PLUG FOR STRIPPED ALUMINIUM AND IRON OIL PANS

The invention relates to a plug () of the type used in threaded openings (AB) of oil pans (CT) of various vehicles. The plug () is made in a single piece (), preferably of iron or other suitable material, the plug () having a six-sided head (). An NPT threaded portion () in the shape of a truncated cone extends from the flat face () of the six-headed head () and has a base (A) with an increased diameter (d), the threaded portion extending along the axis (E) with a slight taper such that the end portion (B) has a reduced diameter (d). The slight angle (#) formed by the threaded portion () provides gradual sealing points (PV) for punctually sealing damaged threaded openings (AB) of various oil pans (CT), thus preventing leakage of lubricant oil. 110102010212322212311223. Conical stopper for damaged aluminum and iron made vehicle sumps , more precisely it is related to a stopper () of a type used in threaded openings (AB) of several vehicle oil sumps (CT); said stopper () comprises a single piece () which is preferably manufactured with steel or any other suitable material , having said stopper () a hexagonal head () , characterized in that a threaded NPT portion () extends from a flat surface () proximal end in the hexagonal head () , said threaded portion having a truncated conical shape and the base (A) of said threaded portion having a wider diameter (d) and extending longitudinally in accordance with an axis (E) having a slight tapering that configures a reduced diameter (d) in a distal end (B).223. Conical stopper for damaged aluminum and iron made vehicle sumps in accordance with the previous claim characterized in that a slight tapering angularity (a) in said threaded portion () configures gradual sealing points (PV) for local sealing of damaged threaded openings (AB) in vehicle oil sumps (CT).323123. Conical stopper for damaged aluminum and iron made vehicle sumps In accordance with claim 1 , characterized in that said NPT conical thread () is provided with ...

FASTENING DEVICE

A fastening device includes a head member and a body member. The head member has a stem portion provided with a fastening section; and the body member is movably assembled to the head member and includes an elastic fastening section for engaging with a first workpiece. To connect the first workpiece to a second workpiece, simply fasten the fastening section of the stem portion to the second workpiece. To disconnect the first workpiece from the second workpiece, simply release the fastening section from the second workpiece. With these arrangements, it is able to quickly connect and easily disconnect two workpieces to and from one another. 1. A fastening device , comprising:a head member having a stem portion, and the stem portion having a fastening section; anda body member being movably assembled to the head member and including an elastic fastening section for engaging with a first workpiece.2. A fastening device , comprising a head member and a body member; the head member having a stem portion provided with a fastening section , the body member including an elastic fastening section for engaging with a first workpiece , and the body member and the head member being structurally abutted against each other to thereby assemble together while being movable relative to each other within a limited range.3. The fastening device as claimed in claim 1 , wherein the head member includes a first abutting section and the body member includes a second abutting section; and the second abutting section being abutted against one of the first abutting section claim 1 , the stem portion and the fastening section of the stem portion claim 1 , so that the head member and the head member are movably assembled together.4. The fastening device as claimed in claim 2 , wherein the head member includes a first abutting section and the body member includes a second abutting section; and the second abutting section being abutted against one of the first abutting section claim 2 , the stem ...

ASSEMBLY METHOD FOR A CONNECTOR

The present invention relates to an assembly method for a connector, in particular for a high-voltage connector, having an electrical conductor and an electric contact, which assembly method comprises the following steps: providing a screw having a first drive and a second drive which is formed opposite the first drive; establishing a connection with play between the electrical conductor and the electric contact by means of the screw by the screw being inserted respectively into a passage hole in the electrical conductor and in the electric contact and being turned in a first direction by way of its first drive; tightening the connection between the electrical conductor and the electric contact by the screw being turned in a second direction, which is opposite the first direction, by way of its second drive. The present invention further relates to a connector and also to a screw. 112.-. (canceled)13. An electrical connector , comprising:a first contact comprising an opening;a second contact comprising a through-hole; anda screw comprising a head portion and an end portion opposite said head portion, whereinsaid screw extends through said opening into said through-hole,said head portion effects a compressive force onto a first surface of said first contact opposite a second surface of said first contact that abuts said second contact,said head portion comprises a first drive structure, andsaid end portion comprises a second drive structure.14. The electrical connector of claim 14 , comprising:a housing that snappingly engages said second contact.15. The electrical connector of claim 14 , wherein:said through-hole comprises a first thread,said screw comprises a second thread that engages said first thread.16. The electrical connector of claim 14 , wherein:said screw extends only partially into said through-hole.17. An electrical connector assembly method claim 14 , comprising:inserting a screw, through an opening of a first contact, into a through-hole of a second ...

CAM ADJUSTABLE ASSEMBLY

A cam adjustable assembly generally includes a cam bolt, a cam washer, and a driving tool. The cam bolt includes a head and a shank coupled to the head. The shank includes a first shank portion coupled to the head. The second shank portion is coupled to the first shank portion. The cam washer can be coupled to the second shank portion. The cam washer includes a washer body and defines a shank receiving hole extending through the washer body and a tool receiving hole extends through the washer body. The shank receiving hole is configured to receive the second shank portion. The driving tool includes a tool body and a protrusion extending from the tool body. The protrusion is configured to be received in the tool receiving hole such that rotation of the driving tool causes the cam bolt to rotate. 1. A system , comprising: a cam bolt including a head and a shank coupled to the head, wherein the shank includes a first shank portion coupled to the head and a second shank portion coupled to the first shank portion;', 'a cam washer couplable to the second shank portion,, 'a cam adjustable assembly includingwherein the cam washer includes a washer body and defines a shank receiving hole extending through the washer body and a tool receiving hole extending through the washer body, and the shank receiving hole is configured to receive the second shank portion; anda driving tool including a tool body and a protrusion extending from the tool body, wherein the protrusion is configured to be received in the tool receiving hole such that rotation of the driving tool causes the cam bolt to rotate when the protrusion is disposed in the tool receiving hole and the second shank portion is disposed in the shank receiving hole.2. The system of claim 1 , wherein the first shank portion and the second shank portion have different cross-sectional shapes.3. The system of claim 1 , wherein a cross-sectional shape of the second shank portion matches a cross-sectional shape of the shank ...

Compliant self-anchoring screw with auxetic properties

The present invention provides compliant screws compatible with standard threaded holes that are self-anchoring via auxetic properties. Once a screw has been twisted in place using a mating screw driver, the screw won't be able to be removed unless it is broken, its surrounding material is torn out with the screw, or unless the screw driver itself is again used to twist the screw in the opposite direction. Thus, although reusable, the screw will never come out of its hole in the presence of vibrations or other cyclic or random loading scenarios. The screws are thereby suitable for critical joint applications where screws must never come loose. Non-limiting examples include satellite fasteners, high-speed vehicle bolts, pedicle screws, and other screws used to secure medical implants within a human body.

Tie for composite wall system that is both screwable and axially pushable

Ties, and related methods, for use in making insulating composite wall structures including first and second structural layers comprising a hardenable material and an insulating layer having a high thermal resistance disposed between the structural layers. The tie includes features that allow it to readily be either axially pushed through the insulating layer (e.g., by hand), or screwed through the insulating layer, (e.g., using a powered tool such as a drill). Thus, a tie of a single configuration is provided which is suitable for both methods of installation. The tie may include discontinuous helical ribs including limited prominence so as to not interfere with the ability to axially push the tie into the insulating layer by hand, yet, the ribs are prominent enough to catch the insulating layer as the tie is drilled in, helping it to “screw” into the insulating layer.

SEMI-LEFT-HAND-THREAD-REMOVAL SCREW

A semi-left-hand-thread-removal screw including a screw end head and a bolt, wherein a sink hole is provided on the screw end head, a lower portion of the sink hole is an inscribed polygon structure or an I-shaped structure, a thread which is opposite to the bolt is provided on an upper portion of the sink hole, the inscribed polygon structure is an inscribed hexagon. A screw according to aspects of the disclosure may be screwed in with a common inscribed hexagon screwdriver and an inscribed hexagon structure thereof which are embedded into each other; the screw can be unscrewed with a left-hand-thread screwdriver which is matched with a left-hand-thread structure thereof and screwed in the left-hand-thread structure thereof, after the left-hand-thread screwdriver is screwed in tightly, the screwdriver is continuously co-rotated and then the screw may be unscrewed. 1. A semi-left-hand-thread-removal screw , comprising:a screw end head and a bolt, wherein a sink hole is provided on the screw end head, a lower portion of the sink hole is an inscribed polygon structure or an I-shaped structure, and a thread, which is opposite to a thread of the bolt, is provided on an upper portion of the sink hole.2. The semi-left-hand-thread-removal screw according to claim 1 , wherein the inscribed polygon structure is an inscribed hexagon.3. The semi-left-hand-thread-removal screw according to claim 1 , wherein the inscribed polygon structure is an inscribed quadrate or a quincunx.4. The semi-left-hand-thread-removal screw according to claim 1 , wherein the thread provided on the upper portion of the sink hole is a left-hand-thread.5. The semi-left-hand-thread-removal screw according to claim 2 , wherein the thread provided on the upper portion of the sink hole is a left-hand-thread.6. The semi-left-hand-thread-removal screw according to claim 3 , wherein the thread provided on the upper portion of the sink hole is a left-hand-thread.7. The semi-left-hand-thread-removal screw ...

FASTENER SYSTEM COMPRISING AN EXTERNALLY THREADED BOLT AND AN INTERNALLY THREADED NUT FOR THE AVOIDANCE OF CROSS-THREADING OF THE MATING THREADS DURING ASSEMBLY

A threaded fastener system, incorporating a bolt and a nut assembly, wherein the bolt has a threaded lead entry point whose pitch and helix angle are of a higher magnitude than that of those on the body/shank of the bolt. 1. A system comprising:a shank of a bolt, having an external thread formed to engage a pre-threaded internal thread in a nut member, wherein the external thread of the shank and the internal thread of the nut member have a same thread pitch and a same thread helix angle;a lead entry point on the bolt, having a threaded entry point, wherein the threaded entry point has an entry point thread pitch higher in magnitude than the thread pitch of the body/shank and wherein the threaded entry point has an entry point helix angle higher in magnitude than the thread helix angle, of the body/shank of the bolt andwherein an outside diameter of the lead entry point being approximately equal to a minor thread diameter of the nut member.2. The system of wherein the internal thread of the nut member is in accordance with any internationally known standard.3. The system of wherein the internal thread of the nut member is in accordance with a proprietary design.4. The system in accordance with wherein a thread root diameter of threads along the lead entry point is equal to or less than that of a thread root diameter of threads along the shank.5. The system of wherein an outside diameter of threaded entry point is smaller than that of the minor diameter of the nut member to allow for a sliding fit to be present without any interference patterns to occur at these diameters.6. The system of wherein the internal thread of the nut member is in accordance with any internationally known standard.7. The system of wherein the internal thread of the nut member is in accordance with a proprietary design.8. The system of wherein the entry point thread pitch equals approximately 1.562 times the thread pitch.9. The system of wherein the entry point thread have a pitch that lies ...

FASTENING DEVICE FOR TAMPER-PROOF FASTENING, AND COMPONENT ARRANGEMENT

A fastening device for fastening a first component to a second component in a tamper-proof manner, includes a screw having an actuation region that can be at least partially arranged in a receptacle of the first component; and a threaded region that is connected to the actuation region and can be connected to the second component in a retaining manner. In addition, the screw includes a security projection which adjoins the actuation region, and is arranged on the side of the actuation region facing away from the threaded region and has latching element that engages with a counter latching element of a covering device of the fastening device, wherein the covering device at least partially covers the receptacle. 110.-. (canceled)11. A component arrangement , comprising:a first component having a receptacle;a second component;at least one fastening device for tamper-proof fastening of the first component on the second component, said fastening device comprising a screw having an actuating region at least partially receivable in the receptacle of the first component, a threaded region adjoining the actuating region and constructed for threaded engagement in the second component, and a safety protrusion adjoining the actuating region and being arranged on a side of the actuating region which faces away from the threaded region, said safety protrusion having a latching element; anda cover constructed as a clamping disc and having a counter-latching element constructed for latching engagement with the latching element, said cover at least partially covering the receptacle of the second component when the threaded region is engaged in the second component and the actuating region is received in the receptacle of the second component, wherein the clamping disc engages with the safety protrusion so that removal of the clamping disc from the safety protrusion causes marks that indicate a tampering with the fastening device.12. The component arrangement of claim 11 , wherein ...

Fastening member

A fastening member includes a column member, a first screw, and a second screw. The column member has a first end and a second end in the axial direction. The first screw is provided at the first end. The second screw is provided at the second end. The column member is configured so that a jig is axially fitted thereover from the second end, and so that rotating the jig having been fitted over the column member engages the first screw with a first body to be fastened. The first screw and the second screw have different axial lengths. The column member has a protrusion which prevents the jig from being fitted from the first end over the column member up to a position at which the jig can rotate the column member.

THREADED SHANK, CONNECTION ASSEMBLY AND GAS TURBINE ENGINE FOR IMPROVED FATIGUE LIFE OF THREADS

A threaded shank for engaging with a threaded further component is provided herein, the further component having a cylindrical first thread with a uniform first thread pitch and a uniform first thread angle, the threaded shank including a second thread with a uniform second thread pitch and a uniform second thread angle and including a third thread with a uniform third thread pitch and a uniform third thread angle along an axial expanse of the third thread. The first thread angle and the second thread angle and the third thread angle being substantially identical, the first thread pitch and the second thread pitch and the third thread pitch being substantially identical, wherein the second thread and the third thread are spaced apart axially by a thread-free region, a second thread helix and a third thread helix have an axial offset to one another. 1. A threaded shank of a turbomachine rotor for engaging with a threaded further component of the turbomachine rotor , the threaded shank adapted to engage with the further component , the further component comprising a cylindrical first thread with a uniform first thread pitch and a uniform first thread angle along an axial expanse of the first thread , the threaded shank comprising:a second thread with a uniform second thread pitch and a uniform second thread angle along an axial expanse of the second thread and comprising a third thread with a uniform third thread pitch and a uniform third thread angle along an axial expanse of the third thread,the first thread angle and the second thread angle and the third thread angle being substantially identical, the first thread pitch and the second thread pitch and the third thread pitch being substantially identical, the second thread and the third thread being engageable with the first thread, whereinthe second thread and the third thread are spaced apart axially by a thread-free region, and a second thread helix of the second thread and a third thread helix of the third ...

DUAL LOAD PATH FASTENER SYSTEM

A dual load path assembly includes an outer pin, which has an axial through bore and at least one end that includes a threaded section. The threaded section includes at least one slot orientated from the end and extends axially along at least part of the threaded section. The assembly also includes an inner pin, which is receivable in the through bore of the outer fastener. A female fastener comprising at least one notch is receivable on the threaded end of the outer pin. A locking plate comprises a through hole via which it is receivable on the shank of the inner pin and at least one projection. The locking plate is arranged such that the projection is receivable in both the notch and the slot. A locking member engages with the end of the inner pin and abuts a face of the locking plate thereby sandwiching the locking plate between the locking member and the female fastener. 1. A dual load path fastener assembly , comprising:an outer male fastener, comprising an axial through bore and at least one end comprising a threaded section, wherein the threaded section includes at least one slot orientated from the end and extending axially along at least part of the threaded section;an inner male fastener, comprising a shank, which is receivable in the through bore of the outer fastener;at least one female fastener receivable on the threaded end of the outer fastener, wherein a face of the female fastener includes at least one axially extending notch;a locking plate comprising at least one projection, wherein the projection projects longitudinally from a first face of the plate; wherein the locking plate includes a through hole via which the locking plate is receivable on the shank of the inner fastener and is arranged to engage with the at least one female fastener, wherein engagement is via the projection being receivable in the notch and in the slot; andat least one locking member configured to engage with the end of the inner fastener and a second face of the locking ...

Multi-featured panel fastener and panel system including the multi-featured panel fastener

A panel fastener is provided that has a head having a first surface and a second surface opposite the first surface; an engagement feature on the first surface of the head, the engagement feature being configured to be engaged by a driving tool; a shank extending from the second surface of the head; a threaded portion extending from the shank, the threaded portion having first and second helical threads arranged in an intertwined manner; the first thread extending farther radially from the central axis than does the second thread; and the shank being located between the head and the threaded portion.

FASTENING MEMBER

A fastening member includes a screw thread formed therein. A portion including a crest portion of the screw thread is formed of a first alloy material and includes: a thick portion where the portion is maximized in thickness in a circumferential direction; and a thin portion where the portion is minimized in thickness in the circumferential direction. A portion including a root of the screw thread is formed of a second alloy material having a tensile strength higher than that of the first alloy material. 1. A fastening member comprising a screw thread formed therein , whereina portion including a crest portion of the screw thread is formed of a first alloy material and includes: a thick portion where the portion is maximized in thickness in a circumferential direction; and a thin portion where the portion is minimized in thickness in the circumferential direction, anda portion including a root of the screw thread is formed of a second alloy material having a tensile strength higher than that of the first alloy material.2. A fastening member comprising:a head portion; anda shaft portion including a screw thread formed therein, whereinthe shaft portion includes a main body portion, and an outer peripheral portion provided radially outside the main body portion,the outer peripheral portion in the screw thread is formed of a first alloy material, and forms a portion including at least a crest portion of the screw thread,the main body portion in the screw thread is formed of a second alloy material having a tensile strength higher than that of the first alloy material, and forms a portion including a root of the screw thread, andthe outer peripheral portion in the screw thread includes: a thick portion where the outer peripheral portion is maximized in thickness in a circumferential direction of the shaft portion; and a thin portion where the outer peripheral portion is minimized in thickness in the circumferential direction of the shaft portion.3. The fastening member ...

Liner Bolt

A liner bolt () comprising an elongate stud () and a head () engageable with a first end () of the stud (). The head () including an inwardly tapered first end portion () adjacent a first end () thereof. A threaded portion () is provided adjacent a second end () of the stud for receiving a nut (). The first end () of the head () includes an inwardly tapered opening () having an internal thread () and the first end () of the stud () includes an inwardly tapered end portion () having an external thread () such that the first end () of the stud () is engageable in the opening () in the head (). 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. A liner bolt comprising:an elongate stud;a head having a first end engageable with a first end of the stud, the head including an inwardly tapered first end portion adjacent the first end thereof; anda threaded portion provided adjacent a second end of the stud for receiving a nut;wherein the first end of the head includes an inwardly tapered opening having an internal thread and the first end of the stud includes an inwardly tapered end portion having an external thread such that the first end of the stud is engageable in the opening in the head.9. The liner bolt in accordance with claim 8 , wherein the stud includes a tool engagement at the second end thereof for engagement by a rotating tool.10. The liner bolt in accordance with claim 9 , wherein the head includes a first end portion which tapers inwardly towards the first end of the head and a second end portion having a constant transverse cross section.11. The liner bolt in accordance with claim 10 , wherein the second end portion of the head is obround in transverse cross section.12. The liner bolt in accordance with claim 11 , wherein the first end portion of the head tapers inwardly in respect of height and not width.13. The liner bolt in accordance with claim 12 , wherein the first end portion is obround in transverse cross ...

Fastening tool systems and methods

A fastening tool system includes a housing including a main body having a proximal end and a distal end. The main body defines an internal chamber extending between a proximal opening at the proximal end and a distal opening at the distal end. A plunger includes a stem that extends into the internal chamber through the proximal opening. The plunger is configured to be moved in relation to the main body between a retracted position and an extended position. A securing stud is in a collapsed position when the plunger is in the retracted position. The plunger is configured to move into the extended position to engage the securing stud to expand the securing stud into an expanded position.

Bolt

A bolt for securing timber to any other material, comprises: a bolt head with a series of spiked teeth on its underside; a cylindrical bolt rod extending from the bolt head is threaded and split into two rods at its free end, so as to define a slot therebetween. In use a user drills a hole through pieces of timber to be secured together, and hammers the bolt through the hole. The spiked teeth on the bolt head lock into the timber, securing the bolt at one end. At the free, split end of the bolt rod, a washer and nut are tightened onto the bolt. A cold chisel is hammered into the slot between the split ends of the rod, bending the ends outwards and thus preventing the nut from loosening.

Bolt for gas turbine engine rotor

The bolt has, in sequence along a bolt axis: a threaded portion, a thread run-out portion, a shank, and a head, the threaded portion having a thread with a given root radius and a given depth, the thread run-out portion connected to the shank via a thread run-out fillet having a thread run-out fillet radius, the thread run-out fillet radius being between two and six times the thread root radius.

ANTI-BURR FASTENER

A fastener includes a cylindrical shaft located between a head and a tapered point, threads integrally extending from the shaft and extending along a portion of a length thereof, and a burr cutoff area near the tapered point and including flank surfaces therein forming an angle greater than 90° therebetween. A flattened area can be located between the flank surfaces. 1. A fastener comprising:a shaft, a head located at a first end of the shaft, and a tapered point located at an opposite end of the shaft;threads integrally extending from the shaft and extending along a portion of a length thereof; anda burr cutoff area formed in the shaft adjacent to the tapered point, the burr cutoff area including flank surfaces forming an angle α of greater than 90° therebetween.2. The fastener of claim 1 , wherein α is from at least 90° to 145°.3. The fastener of claim 1 , further comprising a flattened area located between the flank surfaces4. The fastener of claim 1 , further comprising a sealing washer located on the shaft under the head.5. The fastener of claim 1 , wherein the flank surfaces are arranged at an angle of α/2 from a center of the cutoff area.6. The fastener of claim 1 , wherein a first one of the flank surfaces is arranged at an angle αof about 90° from a radial line extending from a bottom of the burr cutoff area claim 1 , and a second one of the flank surfaces is arranged at an angle αof about 5° to 50° from the radial line.7. The fastener of claim 5 , wherein the angle αis about 45°.8. The fastener of claim 5 , wherein the second one of the flank surfaces faces in an advancing direction of the thread.9. The method of forming an anti-burr-forming fastener comprising:providing a rotating cutting tool with a cutting surface including, in cross-section, two sides set at an angle of greater than 90° to each other;applying the cutting surface to a screw in an area adjacent to a tip of the screw, cutting a groove generally parallel to an axis of the screw forming a ...

FIXING DEVICE FOR A FURNITURE FITTING

The invention relates to a fixing device for fixing a furniture fitting to an item of furniture, which furniture fitting is able to be fixed to the item of furniture using said fixing device, selectively using a left-hand or a right-hand furniture-fitting side. Said device comprises: —a connecting element and—a fixing body that has a through-passage, the connecting element being at least partially arranged in said through-passage, being movable in a limited manner relative to the fixing body, and comprising at least two connecting element stops as well as two connecting element regions for fixing said furniture fitting to the item of furniture. At least two stops are designed in or on the fixing body, and when in the assembly position, one of these two stops corresponds, in each case, to one of the two connecting element stops. 1. A fixing device for fixing a furniture fitting to an article of furniture , wherein the furniture fitting can be fixed to the article of furniture with the fixing device selectively with a left-hand or a right-hand furniture fitting side , comprising:a connecting element, anda fixing body having a through opening, wherein the connecting element is at least partially arranged in the through opening and the connecting element is limitedly moveable relative to the fixing body,wherein the connecting element has at least two connecting element abutments and further two connecting element regions for fixing the furniture fitting to the article of furniture and at least two abutments are provided in or on the fixing body, wherein a respective one of the two abutments corresponds to one of the two connecting element abutments in the assembly position.2. A fixing device as set forth in wherein the connecting element and the fixing body are jointly in the form of a pre-assembled inseparable structural unit.3. A fixing device as set forth in wherein the connecting element extends substantially completely through the through opening in the fixing body ...

Self-tightening Fastening Apparatus for Vibrating Work-parts

A self-tightening fastening apparatus for vibrating work-parts includes a male fastener, a main female fastener, a locking female fastener, an anti-rotation female fastener, and a first compression body. The main female fastener is threadedly engaged around a first threaded-shaft section of the male fastener, wherein a head of the male fastener and the main female fastener compress the vibrating work-parts together. The locking female fastener is threadedly engaged around a second threaded-shaft section of the male fastener. The first compression body is compressed in between the main female fastener and the locking female fastener. The anti-rotation female fastener is threadedly engaged around a third threaded-shaft section of the male fastener.

ORTHOPEDIC FASTENER

An orthopedic fastener has a head and a shank. The shank has a leading end portion adjacent a distal tip and a trailing end portion adjacent a head. An intermediate portion is positioned between the leading and trailing end portions. At the intermediate portion, the shank increases in diameter. The leading end portion has a first thread which includes one or more self-tapping cutting grooves extending adjacent the distal tip and through a plurality of the first threads. The intermediate portion has second threads extending toward the head from the leading end portion. The second threads of the intermediate portion are larger in outer diameter than the first threads in the leading end portion. The intermediate portion has one or more cutting grooves traversing at each of a leading transition at the leading end portion and at a trailing transition. 1. An orthopedic fastener with a stepped up dual diameter comprising:a head;a shank, the shank extending from the head to a distal tip, the shank having a leading end portion adjacent the distal tip and a trailing end portion adjacent the head and an intermediate transition positioned between the leading and trailing end portions, at the intermediate transition the shank increasing in diameter to a larger diameter; andwherein the leading end portion has a first thread extending adjacent the distal tip through to at least the intermediate transition, and the trailing end portion has a second thread extending toward the head from the intermediate transition, the second thread of the trailing end portion being larger in outer diameter than the first threads in the leading end portion, the intermediate transition having one or more cutting grooves extending from at least a first thread in the intermediate transition through at least one of said second threads to initiate tapping of the second threads into cortical bone, and wherein the one or more cutting grooves in combination with the threads form threads in the bone to hold ...

HIGH PERFORMANCE SLEEVED INTERFERENCE FASTENERS FOR COMPOSITE APPLICATIONS

A fastener adapted to pass through aligned holes through workpieces is disclosed. The fastener includes a pin member having a transition portion wherein the diameter of the transition portion decreases radially as it extends from the smooth cylindrical shank portion to the threaded portion. The fastener may also comprise a sleeve member and a clamping means. The clamping means includes a collar, a nut, or any other possible clamping means. In exemplary embodiments, the workpieces can be formed with a plurality of materials, the materials including composite, metallic, or composite/metallic structures, any combination thereof. In particular embodiments, the fastener has interference capability of 0.0005 to 0.0100 inches in composite structures without risk of composite delamination or damage. As a result of the fastener interference, gaps between the fastener and the structure are eliminated thereby providing good electrical conductivity between components. As a result, the potential for electrical sparks is reduced, providing a safer fastener for use with aerospace applications. 1. A fastener , comprising:a sleeve member having an enlarged head at one end and a tubular portion, the tubular portion having an inner surface with an inner diameter, and an outer surface with an outer diameter, wherein the outer diameter of the tubular portion is less than an inner diameter of inner surfaces of aligned holes of a plurality of workpieces in which the fastener is adapted to be installed, wherein the inner surface of the tubular portion of the sleeve member is coated with a low friction coating;and a pin member having an enlarged pin head at one end thereof, a threaded portion at an opposite end thereof, a smooth cylindrical shank portion located below the pin head and having a diameter greater than the inner diameter of the tubular portion of the sleeve member, and a transition portion between the smooth cylindrical shank portion and the threaded portion,wherein the pin ...

Device and method for fastening a vehicle accessory

The fastening device includes a nut ( 1 ) and a screw ( 2 ) coupled by being screwed together, the screw ( 2 ) being movable with respect to the nut ( 1 ), wherein the screw ( 2 ) comprises a head ( 3 ) provided with a washer ( 4 ) able to tilt in any adjustment direction, the axis of the washer ( 4 ) able to move within an angle by tilting with respect to the axis of the screw ( 2 ). A fastening method includes the steps of vertically introducing the fastening device in a polygonal hole until a seal ( 6 ) butts against the roof of the vehicle, and rotating the device in a counterclockwise direction until it butts against the same. The fastening device allows a function of adjustment to be carried out and compensates for the lack of parallelism and tolerance between the fastened accessory and the body of the vehicle.

Post-to-beam fastener

Various embodiments provide a post-to-beam fastener including a head, a tip, and a threaded shank connected to the head at a first end and the tip and a second end. In various embodiments, threaded shank includes a longitudinal axis extending from the head to the tip, and the tip includes a recess operable to removably receive a drill bit to the fastener.

Expansion screw based fastening device

An expansion screw based fastening device includes an expansion screw, an internally threaded member, and a sleeve. The expansion screw includes a head having a plurality of positioning protrusions on a bottom; and a threaded shank. The internally threaded member includes a nut, a constriction member formed with the nut, and an internally threaded hole through both the nut and the constriction member with the threaded shank threadedly passing through. The sleeve includes a fitting member and a moveable hollow member with the fitting member partially disposed therein, the moveable hollow member including a hole for receiving the nut. The fitting member includes positioning members on an outer surface and urging against an inner surface of the hole, and a through hole including a fastening member having threads, and a joining member. 1. An expansion screw based fastening device comprising an expansion screw , an internally threaded member , and a sleeve whereinthe expansion screw includes a head having a plurality of positioning protrusions on a bottom; and a threaded shank;the internally threaded member includes a nut, a constriction member formed with the nut, and an internally threaded hole through both the nut and the constriction member with the threaded shank threadedly passing through;the sleeve includes a fitting member and a moveable hollow member with the fitting member partially disposed therein, the moveable hollow member including a hole for receiving the nut;the fitting member includes a plurality of positioning members on an outer surface and urging against an inner surface of the hole, and a through hole including a fastening member having a plurality of spiral threads, and a joining member configured to join a power tool; anda width of a first end of the fastening member distal the joining member is greater than that of a second end of the fastening member proximate the joining member.2. The expansion screw based fastening device of claim 1 , wherein ...

WEIGHT SCREW

A screw comprising a drive part, a threaded part, and a retaining ring is disclosed herein. Each of the drive part and the threaded part comprises a plurality of interface surfaces that transmit torque from the drive part to the threaded part and prevent the parts from disengaging from one another during use. Each plurality of interface surfaces forms one or more geometric shapes that create additional friction between the drive and threaded parts, and may further include mating pins and holes to prevent the parts from detaching from one another. The retaining ring, which removably connects the screw to a wrench during assembly of the screw with a receptacle, is disposed within a cavity formed when the drive part is assembled with the threaded part. 1. A screw comprising:a drive part comprising a receiving cavity;a threaded part comprising a projecting portion and a pocket; anda retaining ringwherein the drive part is formed separately from the threaded part,wherein the retaining ring is disposed in the pocket,wherein the projecting portion is sized to mate with the receiving cavity,wherein one of the receiving cavity and the projecting portion comprises a plurality of pins,wherein the other of the receiving cavity and the projecting portion comprises a plurality of holes, andwherein the plurality of pins mates with the plurality of holes.2. The screw of claim 1 , wherein the retaining ring is composed of a material selected from the group consisting of elastomer claim 1 , metal claim 1 , and composite.3. The screw of claim 2 , wherein the retaining ring is composed of a metal material.4. The screw of claim 3 , wherein the retaining ring is composed of steel.5. The screw of claim 1 , wherein the receiving cavity comprises a shape.6. The screw of claim 5 , wherein the shape is selected from the group consisting of circular claim 5 , triangular claim 5 , square claim 5 , rectangular claim 5 , oval claim 5 , and hexalobular.7. The screw of claim 1 , wherein the pocket ...

Anchoring System

The disclosure relates to an anchor system having an internally threaded anchor and a bolt or shaft screwed together with said anchor for holding an add-on component in a hole that is pre-drilled into a wall made of concrete or brick work, characterized in that the bolt of shaft comprises a coil spring which is wound suitably to the inner thread of the internally threaded anchor and screwed into said inner thread.

SYSTEMS AND METHODS FOR ATTACHING A PLATE TO A VEHICLE

A system for attaching a plate to a vehicle is provided. The system includes lug nuts and lug bolts for attaching the plate to a threaded wheel stud. The lug nuts each define a threaded stud recess for engagement with a threaded wheel stud and a threaded bolt recess for engagement with a threaded portion of a lug bolt. The lug bolts each define a head for rotating the threaded portion of the lug bolt into the bolt recess of the lug nut, a shaft positioned between the threaded portion and the head, and a rotatable portion. The rotatable portion defines a center aperture freely rotatable about the shaft and a bolt aperture for accepting a fastener. A lock nut is positioned about each of the lug bolts for locking the lug bolt into position relative to the lug nut. 1. A system for attaching a plate to a vehicle , comprising: a threaded stud recess for engagement with a threaded wheel stud; and', 'a threaded bolt recess for engagement with a threaded portion of a lug bolt;, 'lug nuts each defining a head for rotating the threaded portion of the lug bolt into the bolt recess of the lug nut;', 'a shaft positioned between the threaded portion and the head;', a center aperture freely rotatable about the shaft; and', 'a bolt aperture for accepting a plate fastener; and, 'a rotatable portion defining], 'the lug bolts each defininga lock nut positioned about each of the lug bolts for locking the lug bolt into position relative to the lug nut.2. The system of claim 1 , wherein each shaft defines a recessed portion about which the rotatable portion rotates.3. The system of claim 1 , wherein the lug nut includes a tapered end which is conical-shaped or rounded for engagement with the vehicle.4. The system of claim 1 , further comprising threaded wheel studs for being accepted by a threaded hole of the vehicle.5. The system of claim 1 , wherein the rotatable portion defines:a washer portion extending radially from the center aperture for rotating about the shaft; anda mounting ...

Ramp Angle Indexing Assembly for Snowmobile Clutch

An indexing assembly for a snowmobile drive clutch assembly includes an adapter collar having a first portion which is hexagonal in cross section for mounting in the index socket of the drive clutch housing which normally receives a conventional indexing bolt therein. The adapter collar defines a first indexing surface which mates with a corresponding second indexing surface of the indexing head of an auxiliary bolt which replaces the conventional indexing bolt to define an eccentric cam surface which defines the ramp angle of a flyweight ramp member of the drive clutch that can be adjusted through a greater number of mating positions than the conventional indexing bolt. A difference in ramp angle between sequential mating positions of the auxiliary bolt can thus be made smaller than the difference in ramp angle between sequential mating positions of the conventional indexing bolt.

SCREW MEMBER, FASTENING STRUCTURE, AND CONNECTION STRUCTURE FOR SOLAR PANEL FLOAT

A screw member, a fastening structure, and a connection structure for a solar panel float which can facilitate the fastening operation performed by a screw. A pair of screw members is provided with a male screw member and a female screw member. One of the male screw member and the female screw member has a body portion at least partly inserted into a through-hole provided in an object to be fastened, and a temporary fixing portion provided adjacent to an end of the body portion and locked in the object to be fastened so as to prevent the body portion from deviating from the through-hole during a fastening operation. 1. A pair of screw members , comprising:a male screw member anda female screw member,wherein one of the male screw member and the female screw member comprises: a body portion at least partly inserted into a through-hole provided in an object to be fastened, anda temporary fixing portion provided adjacent to an end of the body portion and locked in the object to be fastened so as to prevent the body portion from deviating from the through-hole during a fastening operation.2. The pair of screw members according to claim 1 , wherein the female screw member comprises the temporary fixing portion claim 1 , and the temporary fixing portion is provided adjacent to a leading end of the body portion in an insertion direction where the body portion is inserted.3. The pair of screw members according to claim 2 , wherein the temporary fixing portion comprises a deformable portion which is elastically inwardly deformable in a perpendicular direction perpendicular to the insertion direction claim 2 , and a locking portion which outwardly projects from a leading end of the deformable portion in the perpendicular direction so as to be locked in an opening of the through-hole.4. The pair of screw members according to claim 2 , wherein a plurality of the temporary fixing portions is arranged at substantially regular intervals in a circumferential direction of the body ...

Bus bar and wire harness

A bus bar that includes a main body having a plate shape for arranging a terminal to be electrically connected to the bus bar; and an upright provided at a side in a widthwise direction of the main body, wherein: the main body has an open hole into which a shaft of a bolt is to be inserted, and the upright has an inner surface with which a head of the bolt can come into contact in a rotational direction.

Dowel element

A dowel element is provided and includes a shank portion including first and second mating parts. One of the first and second mating parts includes a first exterior surface and is formed to define an anti-fretting relief including a second exterior surface recessed from the first exterior surface in a radial dimension.

Lock and pin combination for cold working cracks

A lock and pin for the structural and fluid tight repair of cracks not amenable to high temperature repairs or synthetic material patches. Fluid tight pins and locks seal the crack while one or more locks prevent the crack from growing. These repairs need to endure the remaining life cycle of the machinery part while withstanding all the strain, pressure, heat and expansion and contraction of the part before the crack(s) were formed. Often these cracks evolved due to engineering design flaws that will require even greater strength from these areas than when new.