Устройство для подъема и перемещения транспортного средства

Путевой гидравлический домкрат

Регулируемая опора

Передвижной на колесах гидропневматический домкрат

Приспособление к автопогрузчику для монтажа и демонтажа колес и шин автомобилей

Устройство гидропневматического домкрата на тележке

Подъемник для вывешивания автомобилей

Передвижное устройство для технического обслуживания автомобилей

Гидравлическое устройство для подъема и опускания автомобиля

Изобретение относится к подъемно-транспортным средствам и может использоваться при вывешивании автомобилей в условиях авторемонтных и автотранспортных предприятий. Цель изобретения - повышение безопасности работы. В случае обрыва одного из соединительных шлангов при подъеме или опускании автомобилей жидкость не поступает в сливную магистраль 17, давление в которой резко падает, питание на электромагнит 15 не подается. Гидрораспределитель 14 переводится в нейтральное положение. Поток жидкости из напорной магистрали 21 перекрывается, полости нагнетания и слива непосредственно соединяются с баком насосной станции и под весом вывешенного автомобиля жидкость вытекает через разрыв шланга. При этом штоки 4, 5, 6 опускаются и автомобиль возвращается в первоначальное положение. 2 ил.

Агрегат для транспортировки, установки и прижима днищевых листов корпуса судна

Гидравлический двухниточный путеподъемник

KAMERAWAGEN

VORRICHTUNG ZUM HANDHABEN EINES FAHRZEUGRADES

FUSSBETAETIGTES PUMPAGGREGAT FUER HYDRAULISCH BETRIEBENE HEBEZEUGE

Montageständer

Jacks

... 980,050. Garage lifts; jacks. DOWNBURY Ltd. Feb. 27, 1961 [Feb. 27, 1960], No. 7045/61. Addition to 923,384. Headings B8H and B8J. The jack disclosed in the parent Specification is modified in that the linkage, which connects the vehicle supporting platform 38 to the base 10 and which comprises a beam 20, pivoted at 22 to the platform 38 and at C, D to links 18, 16 pivoted to the base 10 at B, A, respectively, is extended and retracted by an hydraulic ram 26, 26a pivoted at 28, 30 to the platform 38 and the base 10, respectively, so that in the raised position of the jack the ram lies substantially parallel to the beam 20. The pivotal connections C, D are on projections 20a, 20b on the beam 20 so that in the lowered position of the jack the connections C, D lie above the main body of the beam. The platform is maintained at a constant aspect to the horizontal by rods 32 pivoted between the links 16 and bell-crank levers 36, 36a which are pivoted at 29 on the beam 20 and which carry rollers ...

HYDRAULIC UNITS

... 1462621 Hydraulic jacks TANGYE EPCO Ltd 8 Feb 1974 [24 Jan 1973] 3512/73 Heading F1D A hydraulic unit, Fig. 1, for operating a jack, extends rapidly until the load is contacted and then extends slowly with increased force. Liquid is drawn from a reservoir 34 by a pump 39 and passes past balls 36, 37 into a chamber 24 from which it extends a piston 62. The latter moves the cylinder 10 relative to the piston 14 until an increase in pressure occurs due to the load being contacted. During this extension liquid is drawn into a chamber 29 from the reservoir 34 through a check-valve 28. When pressure in the chamber 29 reaches a predetermined value a spool 48, Fig. 2, moves against a spring 49 and allows a ball 46 to lift off a seat in a port 45. When this occurs liquid from the pump flows through the port 45 and passages 61,31 into the chamber 29 to extend the unit. Pulling a rod 51 outwards allows liquid to return to the reservoir from chamber 44 through bores 56, 57, 52 and 59. If the operating ...

Pneumatically Operable Hydraulic Jack.

... 1,177,589. Hydraulic jacks. YASUI SANGYO CO. Ltd. 22 Nov., 1968, No. 55582/68. Heading B8J. [Also in Division F1] A wheeled hydraulic garage jack driven by compressed air connected from a source (not shown) to the jack body at 11 comprises a lifting arm 5, journalled at a shaft 8, with a load table 7 and a parallel link 9. The compressed air supply is fed from the jack body inlet 11 through a hose 13 to an inlet 12 on the power generating means 3. A spring-loaded ball valve 14 may be opened by operating a lever 17 to feed the compressed air into an air chamber 18 to drive an air piston 20 to the left as shown in Fig. 2, compressing a return spring 22 and driving a plunger.21. When the head of the air piston 20 reaches an exhaust port 24 the compressed air passes through a conduit 26 into a chamber 25 and drives an air exhaust valve member 27 to the left until a groove 28 communicates with the air chamber 18. This connects the chamber 18 to the atmosphere through an opening 29. This reduces ...

Improvements in and relating to hydraulic jacks

... 621,759. Lifting-jacks. GILLETT, STEPHEN, & CO., Ltd., and CROUCHER, A. H. Aug. 30, 1946, No. 26193. [Class 78 (iii)] An hydraulic jack used in raising the axles of motor vehicles of the type in which an hydraulic cylinder is arranged length-wise upon a carriage and operates a lever having an abutment which is brought into position against the axle and is displaced about its fulcrum by the ram of the hydraulic cylinder to which liquid under pressure is supplied in the lifting operation by a hand lever which actuates the pump the handle also being used for manipulating the jack, the ram and pump being constructed as a unit that is detachable from the carriage. The two ends of the hydraulic unit 8 are formed, as shown in Fig. 1, with arcuate surfaces 38, 41 which engage correspondingly shaped surfaces 39, 42 formed on the end of a lever 10 pivoted on a pin 11 and on the mobile carriage 1. The surface 42 is formed in members engaging against transverse cross members 44 and 44a. By raising ...

Floor jack lockout assembly

A floor jack locking assembly includes a locking pin 128 to couple a frame 102 and a lifting link arm 126 of a lifting mechanism for lifting arm 106 by means of lock pin holes 130 in the frame 102 with position indicators 136 and corresponding alignment indicators 138 provided on the frame 102 and a handle 104 pivotally coupled to the lifting mechanism. Secondary position indicators 134 may be disposed on the frame 102 proximal to the lock pin holes 130. A pin lifting arm hole in the lifting link arm 126 may receive the locking pin 128. First, second and third lock pin holes 130 may be provided. The locking assembly may be used to mechanically lock out the jack at a specified lift height. The locking assembly may avoid the hydraulic lift cylinder being the only stabilizing component of the jack when supporting a significant load. The locking pin 128 may be coupled to lifting link arms 126, avoiding the need to have the locking pin 128 inserted into or through the lifting arm 106 of the ...

DEVICE FOR TRANSPORTING DISPLAY FITTINGS

WAGENHEBER

Vehicle jack, whose pad 17 for the vehicle to be lifted is supported on a base frame 5 via lifting arms 7, a hydraulic lifting device 3 for moving the pad 17 up and down being provided, and its piston rod 14 acting on a yoke 15 which is guided in a slot 11 in the base frame 5, and to which the lifting arms 7 are connected, the ends of the latter being connected to links 12, the lifting arms 7 being mounted in stationary fashion in the base frame 5 such that they can pivot about a common axis 6, the pad 17 for the vehicle to be lifted being mounted on the axis 13, which is common to a pair of links and lifting arms 12, 7, and the axis 8 which is common to the other pair of links and lifting arms 9, 1 being provided with running wheels 2. ...

STROKE AND TRANSPORT DEVICE

CYLINDER DEVICE FOR HYDRAULIC JACKING EQUIPMENT WITH TRANSLATION

ABSCHLEPPGERAET

JACK, IN PARTICULAR THREE-SUPPORT JACK FOR AIRPLANES

COMPACT LIFTING DEVICE.

MOBILE JACK FOR MAINTENANCE AND REPAIR OF MOTOR VEHICLES

ARRANGEMENT FOR HANDLING A LOAD

Displaceable hydraulic jacking equipment

HEAVY VEHICLE JACK

Mobile car body hoist

Lifting and transporting device

Heavy vehicle lifting apparatus and method

A heavy vehicle lifting apparatus and a hydraulic lifting unit. Each lifting unit has a housing with a displaceable upper portion which has an application surface being engageable with a lifting point of the heavy vehicle. Two or more hydraulic actuators are disposed within the housing and linked with a common fixed structure. Each actuator has an extendable cylinder attached to the upper portion. The cylinders in operation collectively vertically displace the upper portion and the application surface between a first position wherein the application surface is disengaged from the lifting point, and a second position wherein the application surface engages the lifting point and the heavy vehicle is lifted from a ground surface.

DEVICE FOR HANDLING VEHICLE WHEEL

LOW PROFILE JACK FOR FORK LIFT TRUCKS

VEHICLE SERVICE JACK

HYDRAULIC FLOOR JACK

VENTING VALVE FOR HYDRAULIC JACK

HYDRAULIC JACK

TRUNNION BLOCK ASSEMBLY

The present invention relates broadly to a floor jack and a multi-component trunnion assembly that transfers motion of a power unit to the lifting arm of the jack. The end block may include one or more trunnions that are coupled to the block. The trunnions may engage and be coupled to one or more connection plates coupled to the lifting arm of the jack. A hydraulic power unit, including at least one piston may be coupled to the trunnion block for lifting the lifting arm of the jack.

PNEUMATIC JACK WITH DOWNWARD PRESSING BLADDER

A pneumatic jack includes a body, a lifting arm, and a bladder. Inflating the bladder applies downward pressure on a proximal end of the lifting arm and raises a distal end of the lifting arm. Subsequently deflating the bladder has the opposite effect. A mounting block at the distal end of the lifting arm allows the pneumatic jack to be used to raise and lower an object such as an automobile through inflation and deflation of the bladder.

AIR ASSISTED HEAVY EQUIPMENT SUPPORT STAND

A heavy equipment support stand is provided have a piston therein for air pressure assisted raising and lowering of the support and having an insert support pin guide connected to the stand to direct the movement of a support pin into and out of the stand.

Wagenheber.

Lastenheber.

Chariot pour le transport et la manutention des bobines

Von Hand betätigbarer hydraulischer Hebebock.

Vérin hydraulique.

Vorrichtung zum Transportieren und Anheben von fassförmigen Behältern.

Dispositif de levage transportable

Fahrbarer Wagenheber

Dispositif pour manoeuvrer des engins de transport, notamment des semi-remorques

Macchina mobile per sollevamento di carichi, particolarmente autoveicoli

Wheel lifter for low-clearance vehicle - has lengthwise elements with wedges and rollers, lifted by pneumatic chambers

The heavy vehicle wheel lifter, designed to increase the clearance beneath a bus or truck to allow an axle stand or block to be inserted, comprises a lengthwise element with a wedge (4) and rollers (23) at each end to fit under the vehicle wheel, which is then raised by pneumatic chamebrs (6) equipped with return springs (10). The lengthwise element is mounted on rollers (22) for greater manoeuvrability, and it can be made telescopic or equipped with a mechanism to allow the distance between the wedges to be adjusted to fit the wheel. A three-way control valve (13) allows the pneumatic chambers to be inflated/deflated as required. USE/ADVANTAGE - Heavy vehicle wheel lifter gives easier access to underside of low-clearance vehicle.

Hydraulic jack

The jack comprises a frame (1), a cylinder (13), a piston (17) displaceable by means of an hydraulic fluid, and a pump which can be actuated alternatively by a pedal (55) or a manually pivoting operating lever (57). In addition a discharge valve (35) is provided, the shut off device (39) of which is displaceable by means of a control member (75) held by the operating lever (57), via a cam drive comprising a transmission member (59) which can be pivoted about the same pivot axis as the pedal (55). The operating lever (57), and a slider (105) which can be displaced across a curved guiding surface of said transmission member. The cam drive is economical to manufacture and to assemble and is operationally reliable.

UNIT FOR PRODUCTION OF TRACK ELEMENTS

Electric hydraulic lifting jack

Dispositif antirégression de sûreté pour crics hydrauliques pour véhicules automobiles.

L'INVENTION CONCERNE UN DISPOSITIF ANTIREGRESSION DE SURETE POUR CRICS HYDRAULIQUES. SELON L'INVENTION, IL COMPREND UN CADRE PORTEUR MAINTENANT PIVOTANT LE BRAS ELEVATEUR 4 D'UN PLATEAU DE POUSSEE 6 ET LE SYSTEME A LEVIERS DE TRANSLATION PARALLELE 7; ENTRE LES COTES OPPOSES DU CADRE, EST DISPOSE LE GROUPE HYDRAULIQUE DE FORCE 13, AVEC LE LEVIER PRIMAIRE DE MISE EN ACTION 19 ET LA PETITE PEDALE 21 POUR LA COMMANDE DU PLATEAU DE POUSSEE, CE GROUPE HYDRAULIQUE PRESENTANT UN PISTON DE FORCE AVEC TIGE DE PISTON 16 RACCORDEE, POUR LE TRAVAIL OPERATIONNEL, AU BRAS 4; DANS CE DISPOSITIF ANTIREGRESSION, EST PREVU UN ENCLIQUETAGE A CREMAILLERE INTERPOSE ENTRE LE GROUPE HYDRAULIQUE DE FORCE ET LE BRAS ELEVATEUR ET DANS LEQUEL SONT PREVUS DES MOYENS PERMETTANT LA COMMANDE DE L'ENCLIQUETAGE. L'INVENTION S'APPLIQUE NOTAMMENT AUX VEHICULES AUTOMOBILES.

PERFECTIONNEMENTS AUX VERINS DE LEVAGE OU CRICS

L'invention concerne des appareils à leviers transformant son mouvement vertical, le mouvement horizontal de poussée d'un organe moteur placé dans un châssis 1 comportant des roues 21, 22. Il est caractérisé par le fait qu'on combine : a. Un Un levier du premier genre 8 dont le point d'appui 7 est constitué par l'extrémité libre d'un bras 6 oscillant autour d'un axe horizontal 4 placé sur un châssis, l'extrémité du levier 8 recevant la poussée de l'organe moteur étant guidé dans une glissière de profil approprié; b. Un dispositif de sécurité 23, 24, 26. Application aux crics pour véhicules.

HYDRAULIC JACK HAS FOUR WHEELS WITH AUTOMATIC SAFETY IN RAISED POSITION, OF WHICH A PART INCLUDING/UNDERSTANDING THE REMOVABLE JACK EAST AND ALLOWS THE RELEASING AND LESERRAGE OF THE SCREWS OF WHEELS OF LIGHT VEHICLES

Motor vehicle battery operated air compressor has a facility to be integrated with a lifting jack

La présente invention concerne un compresseur d'air susceptible d'être monté à cheval sur un vérin de levage, comprenant un carter extérieur (1), un moteur (2), un mécanisme de pompe (3), un cordon de raccordement et un ensemble de tuyau et de connecteur. Selon l'invention, le carter extérieur (1) du compresseur d'air comprend à une extrémité inférieure une structure incorporée à configuration (11) en " u " inversé qui permet de le monter à cheval sur deux plaques latérales verticales du vérin de levage de façon à former une unité unique d'un seul tenant. De préférence, la structure à configuration (11) en " u " inversé comporte, sur l'un et/ ou l'autre des côtés de sa paroi interne, au moins un dispositif de serrage (7) de façon que la base du carter (1) du compresseur d'air monté sur les deux plaques latérales du vérin de levage y soit serrée de façon sûre.

Improvements with the portable pneumatic elevators

SAFETY DEVICE ANTI-DESCENTE OF the ARM OF LIFTING Of a JACK OF the TRACTION TYPE

AUTOMATIC HOISTING DEVICE HAS LIGHTING INCORPORATES

Automobile jack with wheeled base - has linkage which converts horizontal movement of hydraulic cylinder to vertical movement of support pad

Improvements relating to the transportable elevating lifting devices

MOBILE DEVICE LIFT FOR INSTALLATION ON A SCUBA DIVER UNDERWATER

Le poids d'un scaphandre autonome comprenant le gilet stabilisateur, les bouteilles de plongée et tous les accessoires, est très important hors de l'eau et donc difficile à déplacer, lever et manipuler pour l'installer sur le dos de plongeurs de morphologies différentes (petits, moyens, grands). La présente invention concerne un dispositif mobile et transportable constitué d'une structure mobile (SM) coulissant sur une structure porteuse (SP) au moyen d'un vérin pneumatique (VP) sur lequel est raccordé l'embout de l'ombilic (OD) du Direct System (DS) du gilet stabilisateur (G) du scaphandre autonome, de manière à insuffler dans ledit vérin le gaz comprimé contenu dans la ou les bouteilles de plongée et animer la structure mobile (SM) sur et par rapport à la structure porteuse (SP). Les opérations de remplissage du vérin en gaz (A) issu de la bouteille de plongée et de libération de ce gaz sont commandées à partir d'un moyen de commande (CM) actionné par le plongeur.

Carriage of rising for cars

Conjunto para a produção de elementos de pistas de tráfego

CAT OF ELEVATION IN A ONLY MANEUVER

Una disposicion de circuito hidráulico para un gato de elevacion en una unica maniobra sin carga o con poca carga y cuya estructura tiene uncircuito de entrada, un circuito de retorno y un circuito de proteccion contra sobre carga conun cilindro hidráulico, un vástago de piston, unaválvula de secuencia, una válvula de seguridad y una válvula de alivio, en el que el circuito de entrada va desde un deposito externo de un cilindrohidráulico por medio de una válvula de retencion para conectar a una cámara de aceite de una bomba manual. La cámara de aceite de la bomba está conectadaa un tubo de guía de aceite por medio de otra válvula de retencion, el tubo de guía de aceite está insertado en una cámara de aceiteinterna formada en unvástago de piston para formar un circuito cerrado. La cámara de aceite de la bomba está conectada a una cámara interna del cilindro hidráulico por mediode una válvula de secuencia y la cámara interna está conectada al depositoexterno por medio de una válvula de retencion ...

Arrangemang för hantering av en last

AN ARRANGEMENT FOR HANDLING A LOAD

L'invention se rapporte à un dispositif de manipulation de charge, notamment d'un composant automobile ou analogue. Ce dispositif comporte un ensemble vérin (12), un socle (16) et un ensemble plate-forme (14) qui peut être fixé à la charge et déplacé entre l'ensemble vérin et le socle. Ledit ensemble vérin (12) comporte une base montée sur roulettes qui supporte un ensemble à piston et tube. Ledit socle (16) comporte une poutre (114) supportée par une colonne (116) pour permettre l'ajustement relatif de la hauteur, et un tube d'amarrage (110) ou analogue supporté par une extrémité libre de la poutre. L'ensemble plate-forme (14) présente un bloc récepteur (48) dimensionné de façon à être reçu sur une broche réceptrice (46) de l'ensemble vérin, et une broche d'amarrage (108) ou analogue dimensionnée de façon à être reçue dans le tube d'amarrage (110) du socle. De cette manière, la charge peut être fixée à l'ensemble plate-forme et déplacée entre l'ensemble vérin et le socle, ce qui rend possible ...

Commercial lifting device-power unit with slide forward bridge

A bridge traverses along lift arms of a power unit, having leveling pads with inner rectangular plates and roller bearings; and each lift arms has an inner slide plate. The bridge has the general shape of a rectangular block and has a first longitudinal recess in each side, having a width slightly larger than the width of the slide rail, and a depth equal to the thickness of the slide rail. The bridge has a second longitudinal recess in each side having a width slightly larger than the diameter of the roller bearings and a depth slightly larger than the thickness of the roller bearings. The bridge is biased in the forwardly direction along the slide rails by a rectangular pusher frame. The pusher frame has a pair of side plates, with each outer side having a longitudinal recess therein slightly larger than the width of the slide rail and a depth equal to the thickness of the slide rail. The pusher frame includes a pair of tension springs having one end connected to the forward end of the lift arm and the other end connected to the rear plate of the pusher frame, to bias the frame in the forward direction. 1. A commercial power unit for use with a jack stand and having an improved slide forward bridge having sides , said power unit comprising:a rectangular frame having a central longitudinal axis; a forward end for operating the jack stand; a middle portion for retaining the lifting mechanism; a rearward end for controlling the power unit; a bottom thereof having an elongated rectangular slot opening at the forward end having a pair of separated elongated extensions for straddling the jack stand and retaining the jack stand in the slot opening; and a rearward portion having a hydraulic cylinder with a control valve and an actuator piston thereon attached along the longitudinal center thereof, a pair of longitudinal flanges extending upwardly from the bottom sides of said frame, with each flange having a “U” shaped retaining channel facing inwardly and attached ...

Portable hydraulic lift step stool for raising handicapped patients to an elevated location

A portable hydraulic lift step stool for raising handicapped patients to an elevated location comprising of a lower base positionable upon a floor, the lower base having parallel corner walls extending upwardly therefrom. An upper base having a planar surface, the upper surface of which is adapted to support a patient to be lifted and transported, the lower surface of which faces the lower base, the upper base having front and rear edges with a downwardly extending plate adapted to be positioned between the upwardly extending corner walls of the lower base. And a hydraulic jack having an upper end secured to the lower surface of the upper base and having a lower end secured to the upper surface of the lower base, the hydraulic jack including a handle extending outwardly from the upper base and lower base in a space between the corner walls of the lower base, the handle adapted to be pumped to raise and lower the hydraulic jack, the jack also having a switch for reversing the direction of ...

Crankcase guard jack utilizing double parallelogram

A jack or lift with a special fixture is provided for raising or lowering heavy and unusually shaped parts, such as crankcase and transmission guards for heavy-duty vehicles, such as track-type vehicles. The fixture on the jack engages the guard with a novel gripping or coupling arrangement for positively engaging the guard at two points. The gripping or coupling arrangement is vertically and horizontally adjustable to accommodate for different sized parts. A slope adjusting member is provided on the lift remote from the fixture to provide the third point of a three point support.

Vehicle-jack

Quick acting hydraulic lifting jack

A portable hydraulic floor jack has a swinging lift arm actuated by a hydraulic piston which is fed by a pump operated by the tiltable handle of the jack; the handle also having a camming arrangement which will move the lift arm initially into engagement with the load by a single downward movement of the handle.

Lifting jack with locking device

A lifting jack is disclosed which is operated by a handle which is pumped up and down in order to lift a lifting platform on which is supported a load. A locking device is provided which, when the handle is pivoted into the fully upright position, automatically locks the handle upright; and which can be released by a simple blow from the foot of the operator.

Lifting System

System for lifting and lowering a load, such as a vehicle, with at least one lifting mechanism such as a lifting column, a boom lift, a scissor lift and a loading platform. The lifting mechanism includes a carrier which can be moved up and downward for bearing the load and a drive which acts on the carrier. The drive herein includes at least one electrical power source and an electric motor to be energized at least during ascending of the carrier, and the electric motor forms a generator to be connected to the power source at least during even an unloaded descending movement of the carrier for the purpose of gene rating electrical energy to the power source.

HAND OPERATED JACKS FOR LIFTING FILE CABINETS

This invention discloses mechanical and hydraulic jacks for lifting heavy fireproof and burglary proof file cabinets with their contents inside for transportation to a truck or other destination. This jack can also lift lateral or regular file cabinets with their contents inside for transportation. It discloses a hook assembly which can be extended over the top of the cabinet remote from the jack with a hook to hold the cabinet from tilting. It discloses a lifting assembly with a lifting plate at the front bottom of the jack for inserting under the bottom corners of the cabinet for lifting. A device for tilting the cabinet away from the jack is disclosed to allow the lifting plate to be inserted under the cabinet. A lifting plate on the front bottom of the jack can be extended under the end of a file cabinet which is secured by the hooking assembly.

Jack apparatus

A jack apparatus that includes a pair of side support plates with a reduced distal end side profile, a lifting mechanism configured to fit between the distal end of the side support plates when the lifting mechanism is at the lower limit of its range of motion and seen from a side view. In addition, the jack apparatus includes a specialized lift plate for engaging the lift point of a vehicle. The side support plates contain a distal end side profile that includes a first angle, a horizontal portion, and a second angle that are configured to enable the distal end of the jack apparatus to fit under the chassis of a car when it is close to the ground as a result of a flat tire or a suspension malfunction, for example. The lift plate is configured with a distal end portion that contains a tapered slot that allows the lift point of the vehicle to be engaged from an approximately horizontally angle and guides it towards a proximal end recess that retains the lift point in position during lifting ...

Unit for production of track elements

The invention relates to a unit ( 10 ) for the production of track elements ( 32 ), comprising a number of retaining devices ( 14 ), arranged serially in the longitudinal direction of the unit. Said units each comprise a base element ( 20 ), which can be moved on wheels ( 34 ) and at least one support device ( 28 ), connected at least indirectly thereto. The above is arranged, such that a section ( 30, 172 ) of a pre-assembled track element ( 32 ) may be placed thereon, in the alignment which essentially corresponds to that of the most recent fitting position. Furthermore, the above may be positionally adjusted relative to the base element ( 20 ).

ADJUSTABLE HYDRAULIC HORIZONTAL JACK

An adjustable hydraulic horizontal jack including a frame, a hydraulic unit, a jib unit, link rods, and a handle. Here, the structures of the jib and the link rod(s) are improved according to an embodiment. With the improved structures, the jack has rational structures and can act reliably. In addition, under the parameters equivalent to those of conventional hydraulic horizontal jacks, the jack of an embodiment of the present invention can change the height of the lowest position and the load by adjusting the length of the jib and link rods. Therefore, the jack is adapted to jacking up not only a light automobile with a low chassis but also a heavy automobile with a high chassis, thus having a wider scope of application.

Гидравлическое устройство для подъема автомобилей

Устройство для подъемки и рихтовки пути

Устройство для рихтовки железнодорожного пути

Гидравлический домкрат

Изобретение относится к грузоподъемному оборудованию и направлено на повьшение грузоподъемности при уменьшении металлоемкости и улучше- НИИ технологичности. Гидравлический домкрат включает основание 1 с смон- тированньм на нем корпусом 5, охваты- ваюошм цилиндр 2 с помещенными в нем поршнем 3 и упором 4. Цилиндр 2 установлен с радиальным зазором вокруг центрального выступа на основании 1 и уплотнен к нему посредством уплотнения 6. Верхний конец цилиндра 2 помещен с радиальным зазором в гнезде в верхней части корпуса 5, прикрепленного нижней частью посредством резьбового соединения к основанию 1 и прижимающего цилиндр 2 к нему. о 1 ил.

Домкратная тележка

Universelle Transport-Hubvorrichtung für Ladehilfsmittel

HUBWAGEN FUER FAHRZEUGE, INSBESONDERE KRAFTFAHRZEUGE

KAMERAWAGEN

Wagenheber

Wagenheber zum Anheben von Lasten mit einer Tragstruktur (12, 112), bei dem - an der Tragstruktur (12, 112) eine Hebeaufnahme (14, 114) zum Durchführen einer vertikalen Hubbewegung in Richtung einer vertikalen Achse angelenkt ist, wobei die mindestens eine Hebeaufnahme (14, 114) dazu eingerichtet ist, an einer Last anzugreifen und diese zu heben, und - in der Tragstruktur (12, 112) ein Antrieb vorgesehen ist, der der Hebeaufnahme (14, 114) zugeordnet und dazu eingerichtet ist, die Hebeaufnahme (14, 114) zum Durchführen der vertikalen Hubbewegung anzutreiben, wobei der Antrieb einen Elektromotor (50, 150) umfasst, - der Wagenheber (10, 100) weiterhin eine Griffanordnung (30, 130) aufweist, die an der Tragstruktur (12, 112) angreift und um eine Schwenkachse, die quer zu der vertikalen Achse gerichtet ist, schwenkbar ist.

Kombinierter Rangierwagenheber-Werkstattkran

Hydraulic jack

A jack (Fig. 2) has a lift arm 2 pivotally connected to a support 3 and a hydraulic cylinder 1 operative to effect pivotal movement therebetween, the lift arm pivot 22 being intermediate the load engaging support 5 and a wheeled end 18 of the arm such that in use the wheeled end is in contact with a supporting surface and pivotal movement of the arm so as to raise the load engaging end is accompanied by rolling of the wheeled end across the surface to a position substantially vertically beneath the pivot to thereby raise the pivot and enhance the vertical stroke of the jack. In a further embodiment (Fig. 9), the cylinder 5 is pivotted to the lift arm at 12, and the piston 51 to a link 6 which also pivots, about pin 62, when the jack is raised. ...

Trunnion Block Assembly

A trunnion block or end block assembly 130 for a floor jack (100 fig. 2) comprises a block 136 with first and second trunnion recesses 140 to engage first and second trunnions 138 and a piston recess to receive at least a portion of a piston assembly 128. The multi-component trunnion assembly 130 transfers motion of a power unit to the lifting arm (106 fig. 2) of the jack (100 fig. 2). The trunnions 138 may engage and be coupled to one or more connection plates 134 coupled to the lifting arm (106 fig. 2) of the jack. The trunnions 138 may include flanged ends to hold the connection plates 134 on the block 136. The trunnions 138 may each include a recess 144 for a fastener such as a threaded bolt 142, a shear pin or a cotter pin which also engages recesses 146 in block 136. Alternatively the trunnions 138 may include threaded outer surfaces to engage with threaded interior surfaces of trunnion block recesses 140.

Мобильная установка для замены колесных пар или подвагонного оборудования

Техническое решение относится к вспомогательному железнодорожному оборудованию, в частности к мобильным установкам, которые могут быть использованы для замены колесных пар или подвагонного оборудования. Мобильная установка для замены колесных пар или подвагонного оборудования, включающая основную раму, ходовой механизм для перемещения основной рамы, установленные на основной раме подъемный механизм, агрегат для управления подъемным механизмом, подъемный стол. Подъемный механизм выполнен с возможностью перемещения подъемного стола в вертикальном направлении. На подъемном столе установлена поворотная платформа, выполненная с возможностью вращения в горизонтальной плоскости. Технический результат заключается в сокращении времени на замену колесной пары или подвагонного оборудования при повышении безопасности и удобства эксплуатации устройства. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 208 369 U1 (51) МПК B61K 5/00 (2006.01) B66F 5/04 (2006.01) B66F 7/08 (2006.01) B60S 5/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК B61K 5/00 (2021.08); B66F 5/04 (2021.08); B66F 7/0666 (2021.08); B66F 7/08 (2021.08); B60S 5/00 (2021.08) (21)(22) Заявка: 2021124628, 19.08.2021 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Общество с ограниченной ответственностью "РэилМатик" (ООО "РэилМатик") (RU) Дата регистрации: 15.12.2021 2021102591 04.02.2021 (56) Список документов, цитированных в отчете о поиске: EP 0396578 B1, 14.11.1990. US 2003/ 150657 A1, 14.08.2003. CN 205998941 U, 08.03.2017. DE 4204347 A1, 19.08.1993. RU 120057 U1, 10.09.2012. (45) Опубликовано: 15.12.2021 Бюл. № 35 2 0 8 3 6 9 R U (54) МОБИЛЬНАЯ УСТАНОВКА ДЛЯ ЗАМЕНЫ КОЛЕСНЫХ ПАР ИЛИ ПОДВАГОННОГО ОБОРУДОВАНИЯ (57) Реферат: Техническое решение относится к подъемный стол. Подъемный механизм выполнен вспомогательному железнодорожному с возможностью перемещения подъемного стола оборудованию, в частности к мобильным в вертикальном ...

Jack Structure for a Clutch

A jack structure for a clutch contains a main hydraulic cylinder to push a movable arm to move vertically, a holder including a support rod actuated by an auxiliary hydraulic cylinder of the movable arm to move vertically and horizontally relative to the holder, wherein the main hydraulic cylinder is a single acting hydraulic cylinder, the auxiliary cylinder is a double acting hydraulic cylinder, pipes of the main hydraulic cylinder communicate with an inlet tube of the auxiliary hydraulic cylinder; a valve seat includes a pump hole to draw hydraulic oil via a cylinder, an inlet connected with the inlet tube, an outlet coupled with an outlet tube of the auxiliary hydraulic cylinder, and a bore connected with an oil tank; a control post axially connected with the valve seat and includes plural grooves to selectively communicate with the pump hole, the inlet, the outlet, and the bore after rotation.

Multi-purpose jack

An automobile jack may include a base, a hydraulic cylinder, and a raising arm. The raising arm is driven by a hydraulic cylinder and the bottom of the raising arm is installed on the base, and the top of the raising arm is connected to a top plate. Two parallelly arranged removable frames placed on the upper side of the top plate. The top plate may also have supporting columns to raise the height of the removable frames, and pre-drilled holes for the storage of the supporting columns. By using two supporting columns, the removable frames may be dissembled and sit on the top plate, and may be kept on the top plate when not in use. This reduces the storage space. The removable frames may be also easily installed when it is required to raise the height. This increases the working efficiency and is easy to use.

BOOM-ADJUSTABLE HORIZONTAL HYDRAULIC JACK WITH A PULL-LOCK MECHANISM

A boom-adjustable horizontal hydraulic jack with a pull-lock mechanism belongs to a lifting apparatus. The jack comprises a chassis, a hydraulic assembly, a press handle, a boom assembly, and a link rod assembly, wherein, the boom assembly comprises a bearer, a forearm, and a rear arm; the link rod assembly comprises a first link rod and a second link rod; wherein, a pull-lock mechanism is additionally arranged on the bearer, and comprises a guide rod seat, a guide rod, a pull handle, a guide sleeve, a steel rope, a dialing plate shaft, and a locking pin shaft. 1. A boom-adjustable horizontal hydraulic jack with a pull-lock mechanism , comprising a chassis , a hydraulic assembly , a press handle , a boom assembly , and a link rod assembly , wherein , the boom assembly comprises a bearer , a forearm , and a rear arm , the bearer comprises a bearer carrier fixed under the bearer , one end of the forearm is pivotably connected with the bearer carrier via a first pin shaft , the other end of the forearm is pivotably connected with one end of the rear arm via a second pin shaft , and the other end of the rear arm is pivotably connected with the chassis; the link rod assembly comprises a first link rod and a second link rod , one end of the first link rod is pivotably connected with the bearer carrier via a third pin shaft , the other end of the first link rod is pivotably connected with one end of the second link rod via a fourth pin shaft , and the other end of the second link rod is pivotably connected with the chassis , a connecting plate is connected between the fourth pin shaft and the second pin shaft; characterized in that: a pull-lock mechanism is arranged on the bearer carrier of the bearer , and the pull-lock mechanism comprises a guide rod seat , a guide rod , a pull handle , a guide sleeve , a steel rope , a dialing plate shaft , and a locking pin shaft , wherein , the guide rod is fixed to the bearer carrier , the guide rod seat is mounted at the ends of the ...

Lifting Mechanism with Lift Stand Accommodation

The present invention is a lifting mechanism with lift stand accommodation, which is used to allow a lift stand to reside within its bounding space. The present invention comprises a lifting mechanism and a Y-shaped chassis. The Y-shaped chassis comprises a lift mechanism housing and a U-shaped base. The U-shaped base comprises a base slot that allows a jack stand frame to be inserted between its left and right end. The lifting mechanism is used to raise and lower an object from its initial position. The lifting mechanism comprises a left support arm, a right support arm, a lift arm and a U-shaped lift platform. The U-shaped platform comprises a platform slot that can allow a jack stand saddle to be inserted between its left platform end and right platform end. A brace maintains the rigidity of the lift arm, the left support arm, and the right support arm.

HYDRAULIC JACK WITH LOCKING

Hydraulic jack () comprising a main body (), an articulated lifting arm () and a hydraulic cylinder () connected to the main body () by a first articulated connection () and to the lifting arm () by a second articulated connection (), where the hydraulic jack () comprises a lever member () disposing of at least one locking zone () for receiving an element that is solidary to the lifting arm () and that serves as a stop, where the lever member () is articulately connected to the first articulated connection (). The element solidary to the lifting arm () that serves as a stop and is capable of lodging in at least one locking zone () is comprised in the second articulated connection (). This way, a mechanical locking system is provided which presents optimal performance while minimizing the number of necessary components. 111232434253611772143. Hydraulic jack ( , ′) that comprises a main body () , a lifting arm () articulated in relation to the main body () to allow lifting a vehicle and a hydraulic cylinder () for activating the lifting arm () , where the hydraulic cylinder () is connected to the main body () by a first articulated connection () and to the lifting arm () by a second articulated connection () , where the hydraulic jack ( , ′) comprises a lever member ( , ′) that is able to rotate in relation to the main body () in a locking direction (A) or in an unlocking direction (B) and which comprises at least one locking zone () for receiving an element that is solidary to the lifting arm () and that serves as a stop , characterised in that:{'b': 7', '7', '2', '5, 'the lever member (, ′) is articulately connected to the main body () in the first articulated connection ();'}{'b': 3', '14', '6, 'the element solidary to the lifting arm () and that serves as a stop and is able to lodge in at least one locking zone () is comprised in the second articulated connection ().'}21714. Hydraulic jack () according to claim 1 , characterised in that the lever member () ...

HYDRAULIC LIFTING APPARATUS

Exemplary embodiments of a lifting apparatus having a hydraulic jack for a lawn mower, ATV, or other similar vehicle are provided. A lifting apparatus can have a base portion, a wheel axle bar having a first end and a second end opposite the first end, a lifting apparatus configured to raise the wheel axle bar, a first wheel saddle connected to the first end of the wheel axle bar, a second wheel saddle connected to the second end of the wheel axle bar, and a hydraulic mechanism configured to raise the lifting apparatus. Foot pedal(s) or other mechanisms can be provided to operate the hydraulic jack to raise or lower the vehicle on the lifting apparatus. 1. A lifting apparatus , comprising:a base portion;a wheel axle bar having a first end and a second end opposite the first end;a lifting apparatus configured to raise the wheel axle bar;a first wheel saddle connected to the first end of the wheel axle bar;a second wheel saddle connected to the second end of the wheel axle bar; anda hydraulic mechanism configured to raise the lifting apparatus.2. The lifting apparatus of claim 1 , wherein the lifting apparatus comprises:a first lower lifting arm connected to the wheel axle bar; anda second lower lifting arm connected to the wheel axle bar.3. The lifting apparatus of claim 2 , wherein the lifting apparatus further comprises:a first upper lifting arm connected to the wheel axle bar; anda second upper lifting arm connected to the wheel axle bar.4. The lifting apparatus of claim 1 , wherein the hydraulic mechanism is supported by the base portion.5. The lifting apparatus of claim 1 , wherein the hydraulic mechanism comprises a hydraulic jack.6. The lifting apparatus of claim 1 , further comprising:a foot pedal configured to operate the hydraulic mechanism to raise the lifting apparatus.7. The lifting apparatus of claim 6 , further comprising:a foot pedal configured to operate the hydraulic mechanism to lower the lifting apparatus.8. The lifting apparatus of claim 1 , ...

LOAD FEEDBACK ASSEMBLY FOR LIFTING APPARATUS

A load feedback assembly includes a load receiving portion moveably secured within a main body, a sensor device selectively engageable by the load receiving portion, and a biasing device disposed between the load receiving portion and the sensor device. The biasing device has a biasing force that is configured to urge the load receiving portion away from the sensor device, and the biasing force is overcome when a load on the load receiving portion exceeds a predetermined weight threshold. 1. A load feedback assembly , comprising:a load receiving portion moveably secured within a main body;a sensor device selectively engageable by the load receiving portion;a biasing device disposed between the load receiving portion and the sensor device, the biasing device having a biasing force that is configured to urge the load receiving portion away from the sensor device, wherein the biasing force is overcome when a load on the load receiving portion exceeds a predetermined weight threshold.2. The assembly of claim 1 , wherein the load receiving portion is moveable between a non-activated position claim 1 , wherein the load receiving portion is spaced from the sensor device claim 1 , and an activated position claim 1 , wherein the load receiving portion engages the sensor device.3. The assembly of claim 1 , wherein the load receiving portion moves into the activated position when a load on the load receiving portion exceeds a predetermined weight threshold.4. The assembly of claim 1 , wherein the sensor device is a button assembly.5. The assembly of claim 4 , wherein the button assembly includes an activation button secured within a carriage.6. The assembly of claim 5 , wherein the carriage is adjustable in axial position relative to the main body.7. The assembly of claim 5 , wherein the carriage is adjustably secured within a lower cap secured to a bottom portion of the main body.8. The assembly of claim 7 , wherein the lower cap includes a central opening having threads that ...

Mechanical Tire Lift

A tire lifting assembly used to remove and replace a wheel and a tire on a vehicle is disclosed. The tire lifting assembly is configured to take the weight of the wheel and the tire when the service technician removes or replaces it thereby eliminating the need for manual efforts from a service technician. The assembly is rolled under the mounted wheel and tire and quickly adjusted to secure the wheel and tire by using a roller platform. A scissor jack mechanism is used to adjust the height of the roller platform which allows the rotation of the tire during the mounting procedure. 1. A tire lifting device , comprising:a frame having at least two fixed wheels and at least one steerable wheel with a drive member;a stand comprising at least two rollers disposed at opposite sides of the stand for supporting a tire and wheel on top of said rollers and in direct contact therewith for allowing said tire and wheel to rotate thereto;a pair of adjustable support tubes disposed at opposite sides of the frame, wherein each adjustable support tube coupled to a tire guide, wherein the tire guide configured to support and stabilize the tire and wheel in upright position;a dual action cylinder coupled to the tire guide configured to move said tire guide between an extended configuration and a retracted configuration;a jack disposed beneath the stand for raising and lowering the stand;a computing device in communication with the pair of adjustable support tubes, dual action cylinder, hydraulic jack and a drive member, anda remote-control unit in communication with the computing device comprises a plurality of control member for remotely controlling the tire lifting device.2. The tire lifting device of claim 1 , wherein the remote-control unit configured to enable an operator to:position the device beneath a vehicle requiring positioning or removal of wheel and tire, androtate at least two rollers to provide access to wheel lugs to either position or remove the wheel and tire from ...

ADAPTER ASSEMBLY FOR LIFTING A VEHICLE

An adapter assembly for lifting a vehicle includes an adapter defining a first pin aperture, a second pin aperture, and an adapter aperture, a first pin, a second pin, and a cross member removably received by the adapter aperture. The first pin is configured to be removably received by the first pin aperture and a first aperture defined by a frame of the vehicle to selectively couple the adapter to the frame. The second pin is configured to be removably received by the second pin aperture and a second aperture defined by the frame of the vehicle to selectively couple the adapter to the frame. 1. An adapter assembly for lifting a vehicle , the adapter assembly comprising:an adapter defining a first pin aperture, a second pin aperture, and an adapter aperture;a first pin configured to be removably received by the first pin aperture and a first aperture defined by a frame of the vehicle to selectively couple the adapter to the frame;a second pin configured to be removably received by the second pin aperture and a second aperture defined by the frame of the vehicle to selectively couple the adapter to the frame; anda cross member removably received by the adapter aperture.2. The adapter assembly of claim 1 , wherein the cross member is configured to engage a lift device claim 1 , and wherein the cross member and the adapter are configured to transfer a lifting force from the lift device to the frame to lift the vehicle.3. The adapter assembly of claim 1 , wherein an exterior surface of the cross member that is received by the adapter aperture has a circular cross section.4. The adapter assembly of claim 3 , wherein the adapter aperture has a circular cross section.5. The adapter assembly of claim 1 , wherein the cross member is rotatable relative to the adapter when the cross member is received within the adapter aperture.6. The adapter assembly of claim 1 , wherein the first pin aperture claim 1 , the second pin aperture claim 1 , and the adapter aperture extend ...

HYDRAULIC POWER UNIT FOR JACK WITH INTERNALLY ADJUSTABLE SAFETY RELIEF VALVE

A hydraulic power unit for a floor jack that includes an internally-adjustable relief valve that is inaccessible to an operator without removing the power unit from the jack assembly and disassembling the power unit. By placing the relief valve inside of the hydraulic assembly, hidden from operators, the relief valve is less likely to be accidently adjusted when using or servicing the jack. 1. A hydraulic power unit for a jack including a frame , a lifting arm , and a handle pivotally coupled to the frame , the hydraulic power unit comprising:a valve block including a fluid reservoir, a lift piston assembly extending from a first side and a fluid cylinder disposed in a second side opposite the first side;a lift piston slidably disposed in the lift piston assembly, and adapted to be mechanically coupled to the lifting arm;a drive piston slidably disposed in the fluid cylinder, and adapted to be actuated by the handle to pump fluid in the hydraulic power unit;a first through-bore disposed in the valve block and extending from the second side to the lift piston assembly;a release passage defined in the valve block, and fluidly connecting the first through-bore to the fluid reservoir;a release valve disposed in the first through-bore, and adapted to close the release passage during a pumping operation and to open the release passage to release fluid from the lift piston assembly into the fluid reservoir;a vertical passage disposed in the valve block, and containing first and second check valves;a first horizontal passage in the valve block, fluidly connecting the fluid cylinder to the vertical passage, to communicate fluid between the fluid cylinder and the first check valve, and between the fluid cylinder and the second check valve;a second horizontal passage in the valve block, fluidly connecting the lift piston assembly to the vertical passage, the first check valve being between the first and second horizontal passages, the first check valve adapted to open and ...

Rolling Vehicle Jack

A rolling vehicle jack for elevating a vehicle includes a base. A spring is coupled to a top of the base and is positioned in an internal space of the base. A sphere is rollably coupled to the spring and selectively extensible through a penetration that is positioned through a bottom of the base. A lift is coupled to and selectively extensible from the top of the base. An actuator, positioned in the internal space, is coupled to the base and operationally coupled to the lift. The sphere is configured to roll on a surface such that the base is reversibly positionable under a vehicle. The actuator is positioned to motivate the lift to extend vertically from the base, wherein the sphere is retracted into the base. A vehicle that is positioned above the lift is raised and is positioned for maintenance, such as changing of tires, wheels and tracks. 1. A rolling vehicle jack comprising:a base;a spring coupled to a top of said base and positioned in an internal space of said base;a penetration positioned through a bottom of said base, said penetration being circular;a sphere rollably coupled to said spring, said sphere being selectively extensible through said penetration;a lift coupled to said top of said base, said lift being selectively extensible from said base;an actuator coupled to said base and positioned in said internal space, said actuator being operationally coupled to said lift; andwherein said sphere is positioned on said spring such that said sphere is configured for rolling on a surface such that said base is reversibly positionable under a vehicle, wherein said lift is positioned on said base such that said actuator is positioned to motivate said lift to extend vertically from said base, wherein said sphere is retracted into said base, wherein a vehicle positioned above said lift is raised, such that the vehicle is positioned for maintenance, such as changing of tires, wheels and tracks.2. The jack of claim 1 , further including said base being ...

PORTABLE AUTOMOBILE LIFT

A jack assembly includes a base, a support platform, a pair of links connecting the base to the support platform and an actuator connected between the base and the support platform. The actuator is operable to move the support platform between lowered and raised positions. The actuator may be coupled to a power assist cylinder which utilizes pressurized compressible fluid to assist in lowering the support platform. A safety lock system includes a lock bar pivotally connected to the support platform and one or more pockets on the base positioned to receive a free end of the lock bar to retain the support platform in a selected raised position. A preferred support platform includes trays which receive contact blocks selected from a set of varied contact blocks. A portable automobile lift comprises a pair of the jack assemblies in combination with a portable power unit. 1. A portable automobile lift including a pair of mechanically unconnected jack assemblies , each said jack assembly comprising:a) a base, a support platform and a pair of links connecting said base to said support platform;b) a hydraulic actuator connected between said base and said support platform and operable to move said support platform between a lowered position adjacent to said base and at least one raised position spaced above said base, said actuator having a piston, a base end port and a rod end port, a first one of said ports providing fluid communication between a source of pressurized hydraulic fluid and a first side of said piston for raising said support platform; andc) a power assist canister connected to said other of said ports of said actuator, said power assist canister holding a charge of pressurized compressible fluid, said pressurized compressible fluid exerting a force on a second side of said piston and assisting in lowering of said support platform when said pressurized hydraulic fluid is drained away from said first side of said piston.2. The portable automobile lift as in ...

POWER UNIT FOR A FLOOR JACK

A power unit for a hydraulic floor jack is provided having a unitary forged steel manifold engaged with a ram assembly, the ram assembly and manifold being selected from materials and finishes that when interacting with a cylinder bearing, exhibits a longer performance life. 1. An hydraulic power unit for a floor jack comprising:a forged steel manifold welded to a reservoir, a cylinder in fluid communication with the reservoir, an upper surface of the manifold having a plurality of ports for receiving one or more check valves;a ram assembly within the cylinder, the cylinder being constructed of 45 steel and a 32 micro finish, the ram assembly further comprising a ram having a material with HRC of between about 30 to about 34 and further having a 16 micro-finish, the ram assembly further comprising a ram bearing secured to a first end of the ram, the ram bearing having an external bronze coating, a micro-finish value of 32, and comprising a steel material with a HRC value of between about 28 to about 32, the ram bearing being in contact with a nylon 1010 seal, the nylon seal being in further communication with a U-cup seal of polyurethane, the U-cup seal having a shore A 95 hardness value.2. The hydraulic power unit according to wherein the ram is in communication on a second end with a cylinder bearing claim 1 , the interior of the cylinder bearing having a micro-finish of 32.3. An hydraulic power unit for a floor jack comprising:a forged Q235 steel manifold comprising a cylinder and a reservoir;a ram assembly and operative engagement with the cylinder, the ram assembly further comprising a ram bearing secured to a first end of the ram, the ram bearing having a exterior surface comprising a welded bronze coating, the exterior surface having a hardness value of between about 28 to about 32 and a micro finish value of 32.4. The power unit according to further comprising a plurality of ports defined on an upper surface of the manifold.5. The power unit according to ...

HYDRAULIC PUMPING CYLINDER AND METHOD OF PUMPING HYDRAULIC FLUID

A hydraulic jack includes a frame and a pump connected to the frame. The pump is connected to the frame. The pump includes a rod, a housing, and a piston, with hydraulic fluid being in the housing. The rod has a cross-sectional area and has a longitudinal axis. The housing has an end through which the rod slides and has an interior wall. The piston is coupled to the rod. The piston establishing a rod side chamber and a piston side chamber within the housing. The piston having a plurality of biased check valves fluidically coupling the rod side chamber with the piston side chamber. 1. A hydraulic jack , comprising:a frame; and a rod having a cross-sectional area, said rod having a longitudinal axis;', 'a housing having an end through which said rod slides, said housing having an interior wall; and', 'a piston coupled to said rod, said piston establishing a rod side chamber and a piston side chamber within said housing, said piston having a plurality of biased check valves fluidically coupling said rod side chamber and said piston side chamber., 'a pump connected to said frame, said pump including2. The hydraulic jack of claim 1 , wherein said plurality of biased check valves include a first biased check valve and a second biased check valve claim 1 , said first biased check valve being biased in a fluidically opposite direction from said second biased check valve.3. The hydraulic jack of claim 2 , wherein said first biased check valve has a first bias claim 2 , and said second biased check valve has a second bias claim 2 , said second bias being stronger than said first bias.4. The hydraulic jack of claim 3 , wherein said first biased check valve is configured to allow a passage of fluid from said rod side chamber to said piston side chamber.5. The hydraulic jack of claim 4 , wherein said second biased check valve is configured to allow a passage of fluid from said piston side chamber to said rod side chamber.6. The hydraulic jack of claim 3 , wherein said second ...

HYDRAULIC PUMPING CYLINDER AND METHOD OF PUMPING HYDRAULIC FLUID

A method of extending a jack including the steps of: first stage pumping by passing pressurized fluid at a first pressure and a first volume to a jack cylinder primarily by movement of a piston; and second stage pumping by passing pressurized fluid at a second pressure and a second volume to the jack cylinder primarily by movement of a rod connected to the piston. 1. A method of extending a jack , comprising the steps of:first stage pumping by passing pressurized fluid at a first pressure and a first volume to a jack cylinder primarily by movement of a piston; andsecond stage pumping by passing pressurized fluid at a second pressure and a second volume to the jack cylinder primarily by movement of a rod connected to the piston.2. The method of claim 1 , further comprising the step of transitioning from the first stage pumping to the second stage pumping by way of a selected bias on a check valve having fluid communication from a piston side of a pump chamber to a rod side of the pump chamber.3. The method of claim 2 , wherein the piston has an other check valve with fluid communication in a direction from the rod side to the piston side of the pump chamber.4. The method of claim 3 , wherein the check valve has a higher bias than the other check valve.5. The method of claim 4 , wherein a ratio of a cross sectional area of the piston to a cross sectional area of the rod is one of approximately 100 and less than 100.6. The method of claim 1 , wherein the jack further includes a housing through which the rod slides and within which the piston moves claim 1 , the housing having an interior wall facing the piston claim 1 , the has a cross-sectional area and a longitudinal axis claim 1 , the piston establishing a rod side chamber and a piston side chamber within the housing claim 1 , the piston having a plurality of biased check valves fluidically coupling the rod side chamber and the piston side chamber.7. The method of claim 6 , wherein the plurality of biased check ...

TROLLEY JACK

The present invention relates to a hydraulic trolley jack of the type that aids in lifting vehicles and that basically comprises a main body (), a lifting element () capable of moving up or down with respect to the main body (), an operating lever () that can be lowered through which the user operates the lifting element (), interlocking means for fixing the operating lever () in the operative position thereof and automatic release means for automatically releasing said operating lever () such that it can be lowered on the main body () in a manner that is easy and comfortable for the user. 1. Trolley jack comprising:{'b': '1', 'a main body ();'}{'b': '2', 'a lifting element () capable of moving up or down with respect to the main body'}{'b': 3', '2, 'an operating lever () that can be lowered through which the user operates the lifting element ();'}{'b': '3', 'interlocking means for fixing the operating lever () in the operative position thereof; and'}{'b': 3', '1, 'automatic release means for automatically releasing said operating lever () so that it can be lowered on the main body ().'}2783712. Trolley jack according to claim 1 , wherein the interlocking means and automatic release means are located in a lever holder () to which the lower end () of said operating lever () is fixed in a swiveling manner and in that said lever holder () is partially introduced in the main body () of the jack such that claim 1 , when operated claim 1 , it activates the hydraulic mechanism responsible for causing the lifting element () to move up.37. Trolley jack according to claim 2 , wherein the lever holder () is formed as a hollow tubular body open at its two ends which internally comprises:{'b': '15', 'a rigid elongated body () extending from a little over half of the height thereof to the lower end thereof, protruding therethrough; and'}{'b': 9', '15', '7, 'a latch () located at the upper end which can move longitudinally along the inside thereof from a lower position in which it ...

Feeding system for hydraulic jacks, hydraulic jack, kit and associated actuation method

A feeding system for a hydraulic jack, characterized in that it comprises:

Pneumatic jack with downward pressing bladder

A pneumatic jack includes a body, a lifting arm, and a bladder. Inflating the bladder applies downward pressure on a proximal end of the lifting arm and raises a distal end of the lifting arm. Subsequently deflating the bladder has the opposite effect. A mounting block at the distal end of the lifting arm allows the pneumatic jack to be used to raise and lower an object such as an automobile through inflation and deflation of the bladder.

POWERED PALLET TRUCK

A powered pallet truck is provided having a base support portion and a load lift portion. The powered pallet truck has a lift cylinder device connected at a lower portion to a forward extending lift cylinder device seat on the base frame and pivotally connected at an upper portion within a recessed channel in the load lift frame. 1. A powered pallet truck comprising:a base support portion having a base frame and a load lift portion having a load lift frame, the load lift portion further comprising a pair of forks that extend forwardly;a drive wheel being rotatably connected to the base frame;a drive motor coupled to the drive wheel;a lift mechanism operable for moving the load lift portion and the forks thereof up and down relative to the base support portion;the lift mechanism further comprising a lift cylinder device connected at a first portion to the base frame forward of the drive wheel;the lift cylinder device being pivotally connected at a second portion to the load lift frame and being recessed within the load lift frame; anda pressurized fluid supply mechanism connected to the load lift frame and configured to supply pressurized fluid to the lift cylinder device.2. The powered pallet truck of wherein lift cylinder device is disposed in a channel in the load lift frame.3. The powered pallet truck of wherein the first portion of the lift cylinder device is connected to a lift cylinder device seat that extends forward from the base frame.4. The powered pallet truck of wherein the load lift portion further comprises an upstanding housing configured to receive one or more batteries with the pressurized fluid supply mechanism being disposed above the one or more batteries.5. The powered pallet truck of wherein the pressurized fluid supply mechanism includes a pump for supplying pressurized fluid to the lift mechanism.6. The powered pallet truck of further comprising an upper link assembly pivotally connected to the base frame at a first end and pivotally ...

LAWN MOWER LIFTING MACHINE

A lawn mower lifting machine includes a frame, a power device, a lifting device, a limit device and a support device. The frame includes a bottom frame and a jack installing board frame. The power device includes a jack with the top coupled to the lifting device and the bottom coupled to the frame. The lifting device includes a lift arm coupled between the frame and the power device. The limit device includes a brake block, a limit rack and a retractor coupled to the lifting device. The retractor can be turned to hook the brake block. The support device includes a lift beam, a lift frame coupled to both sides of the lift beam. 1. A lawn mower lifting machine , comprising a frame , a power device , a lifting device , limit device and a support device , characterized in that the frame is composed of a bottom frame and a jack installing board; the body of the power device is a jack with a base mounted onto a jack installing board of the frame , and the top end of a piston of the jack is coupled to a lift trolley of the lifting device; the lifting device comprises a lift trolley , a lift arm and a driven rod , wherein ends of the lift arm and the driven rod are installed to the frame and the other ends of the lift arm and the driven rod are coupled to a lift beam of the support device; and the lift trolley is hinged to the lift arm; the limit device is composed of a brake block and a limit rack , wherein the brake block is hinged to the lift trolley; and the support device includes a lift beam and a tire lifting frame disposed on both sides of the support device , and the tire lifting frame is installed at both ends of the lift beam.2. The lawn mower lifting machine of claim 1 , wherein the limit device is comprised of a brake block claim 1 , a limit rack and a retractor; the brake block is comprised of a main beam claim 1 , two side plates and a limit plate claim 1 , and an included angle of 120˜150° is formed between the limit plate disposed at the top end of the main ...

Commercial lifting device-power unit with bridge latching mechanism

A power unit has a frame with a bottom and a pair of lift arms with a cover plate, and a bridge. A lower latch member has a forward end, a middle portion and a rearward end with the middle portion pivotally connected near the lower inner side of one of the lift arms. The rearward end is angled downward, extending below the lower side of the lift arm. The rearward end is biased downwardly and is engagable with the bottom of the frame. The forward end has an upward finger with a beveled-up nose thereon that is engagable with a downward lateral flange at the forward end of the bridge. The bridge is retained by the forward end of the lower latch member, and whereby when the lift arm is lowered to the lowermost position, the forward end is automatically released. An upper latch member has a forward end, a middle portion and a rearward end, with the middle portion pivotally connected to a pivot arm extending downwardly from the cover plate. The forward end has a downward finger with a beveled-down nose thereon, that is biased downwardly and is engagable with an upward lateral flange at the rearward end of the bridge. The rearward end has a button extending upwardly through an aperture in the upper cover plate to release the upper latch member.

Commercial lifting device-power unit with leveling pads

A power unit includes a rectangular frame having a forward end for operating the jack stand; a middle portion for retaining the lifting mechanism; a rearward end for controlling the power unit. A pair of lift arms acting in parallel have forward ends, central portions and rearward ends and are interconnected at the rearward ends thereof by a lateral push bar. A pair of horizontally oriented U-shaped leveling pads each having an outer rectangular plate and an inner rectangular plate providing an open rearward end with the opening equal to the thickness of the lift arm, and forming a closed U-shaped forward end, and are pivotally attached at the rearward end thereof around the inner and outer sides of the forward end of the respective lift arm. Each outer rectangular plate of the leveling pad has a downwardly extended lever arm at the forward end thereof for connecting to a leveling link. Each inner rectangular plate has a rear cylindrical roller bearing mounted on the rearward end thereof, and has an adjacent forward cylindrical roller bearing mounted on the forward end thereof, with the roller bearings for engaging side flanges of a lifting plate of the jack stand, and for engaging sides of a slide forward bridge.

Rack for transporting jack stands

Each jack stand includes a rectangular bottom plate having a pair of rectangular openings therein. The rack has a rectangular platform having a lateral loading side, a width a little larger than the jack-stand-length, and a length equal to a multiple of the jack stand widths. A plurality of L-shaped fingers are located on the platform at points corresponding to the opening in the bottom plate, and extends upwardly and laterally toward the non loading side of the platform. Each finger has a rectangular upper surface thereon having a width and length slightly smaller than the width and length of the openings in the bottom plates; and creates an opening between the platform and the finger that is slightly greater that the thickness of the bottom plates of the jack stands. Each finger is for receiving one of the rectangular openings of the respective bottom plate onto the platform; and a lateral movement of the bottom plate in the direction of the lateral loading side of the platform is for locking the bottom plate under the respective finger and onto the platform of the mobile rack. The rack includes a pair of wheels attached to the rearward end of the platform, so that the platform engages the horizontal surface when the forward end of the platform is horizontal, and so that the pair of wheels engage the horizontal surface when the forward end of the platform is lifted at an acute angle.

Commercial lifting device-power unit with safety mechanism

A power unit (or a hydraulic floor jack) includes a rectangular frame with side flanges and has a tubular handle enclosing a control shaft and a control knob. A pivotal lifting mechanism is mounted on the frame including a pair of parallel lift arms having rearward ends interconnected by a lateral push bar. The forward ends (with the bridge) are rotatable upward for lifting a load as the push bar is translated forward within a pair of U channels tracks attached to the inner side flanges. A hydraulic cylinder has a ram for pushing the lateral push bar forward along the tracks for raising the forward ends of the lift arms, and has a releasable control valve for retracting the ram to lower the forward ends of the lift arms. The safety mechanism includes a toothed rack bar secured in the vertical wall of the racks. The lateral push bar has bore holes in the ends thereof. A cylindrical dog is slidably supported within each of the bore holes ad has a proximal end that is extendable for engaging a tooth of the rack bar. The dogs are biased into the extended position, and include release cables and linkage for releasing the dogs from the rack bar by rotating the control knob counter-clockwise. 1. A safety mechanism for a commercial power unit and for a hydraulic floor jack , including a rectangular frame having a forward end , a rearward end , and sides with the rearward end having a tubular control handle extending therefrom with a control knob at the upper end of the handle; a pair of longitudinal side flanges extending upward from the frame; a pivotal lifting means mounted on the frame including a pair of parallel lift arms having rearward ends interconnected by a lateral push bar and having forward ends rotatable upward for lifting a load; a pair of longitudinal U channel tracks facing inward and attached to the inner side flanges within the frame and retaining the ends of the lateral push bar therein; a hydraulic cylinder having an extendable ram for pushing the ...

TROLLEY JACK COMPRISING A HINGED LEVER ASSEMBLY

The present invention relates to a trolley jack comprising a main body and a lifting element capable of moving up or down for lifting a heavy object, and a lever assembly projecting upwards along a longitudinal axis for allowing a user to manually push and move the jack, where a lower end of the lever assembly is connected in an articulated manner to the main body according to a transverse axis of rotation, the lever assembly being capable of being lowered with respect to said transverse axis of rotation and arranged against the main body. Providing a hinged lever assembly increases jack storage and transport possibilities. 11101201210220231033034104204210220251052051101201. Trolley jack (; ; ) comprising a main body (; ; ) with respect to which a lifting element (; ; ) is capable of moving up or down for lifting a heavy object , and a lever assembly (; ; ) capable of projecting upwards from the main body (; ; ) along a longitudinal axis (; ; ) for allowing a user to manually push and move the jack (; ; ) , characterized in that:{'b': 4', '104', '204', '4', '104', '204', '2', '102', '202', '8', '108', '208', '4', '104', '204', '8', '108', '208', '2', '102', '202, 'i': c', 'c', 'c, 'a lower end (; ; ) of the lever assembly (; ; ) is connected in an articulated manner to the main body (; ; ), said connection being articulated with respect to a transverse axis of rotation (; ; ), the lever assembly (; ; ) being capable of being lowered with respect to said transverse axis of rotation (; ; ) and arranged against the main body (; ; ).'}211012014104204. Jack (; ; ) according to claim 1 , characterized in that the lever assembly (; ; ) is telescopic and its length is variable.319482. Jack () according to claim 1 , characterized in that it comprises at least one securing element () for fixing the position of the lever assembly () when it is lowered with respect to the transverse axis of rotation () and arranged against the main body (). ...

JACKSTAND FOR AUTOMATED TRAILER LOADING DOCK

Automated jackstand systems and methods deploy a jackstand to support a front end of a trailer parked at an automated loading dock. The jackstand prevents collapse of the trailer's landing gear and prevents upending of the trailer during loading and unloading. Advantageously, by deploying the jackstand automatically, presence of personnel in the yard where tractors and trailers are moving is not required. 1. An automated jackstand system for supporting a front end of a trailer parked at a loading dock , comprising: a jack pad;', 'a vertically extendable component coupling at a first end with the jack pad;', 'a collar positioned on the vertically extendable component; and', 'a mechanical socket positioned on the collar and mechanically geared to extend the vertically extendable component when rotated in a first direction and to retract the vertically extendable component when rotated in a second direction opposite the first direction;, 'a jackstand, comprising at least two claws operable by a first motor to removably couple with the collar; and', 'a drive bit operable by a second motor and shaped and sized to mechanically couple with the mechanical socket, wherein the drive bit is positioned between the at least two claws; and, 'a grabber positioned at a back end of a yard tractor, comprisinga controller, having machine-readable instructions stored in non-transitory memory that, when executed by a processor, control the first motor and the second motor to deploy the jackstand to support the front end of the trailer.2. The automated jackstand system of claim 1 , further comprising:a fiducial marking positioned on the collar;a camera positioned on the yard tractor for imaging the fiducial marking; andfurther machine-readable instructions stored in the non-transitory memory that, when executed by the processor, control the yard tractor to align the grabber with the fiducial marking when coupling with the jackstand.3. The automated jackstand system of claim 1 , the ...

Dual Level, Trailerable Mechanic's Ramp

An extremely compact, trailerable vehicle ramp that utilizes a unique, economical manner of locking the lift and raising the vehicle that is adapted to provide both safety and convenience for the user. The lift can be locked into a horizontal position with the base frame raised so that it can be towed to the desired location, such as a racetrack. Once there, the frame can quickly be lowered hydraulically until it rests on the ground simultaneously effecting the locking of the wheels. With the retraction of a couple of pins the two ramps may be tilted down at the rear and a vehicle driven on it forward until the vehicle's front wheels reach the stops in the ramp tracks. The rear of the ramp tracks may now be raised hydraulically until the ramp tracks are horizontal and the vehicle has been raised off the ground. The rear of the ramp tracks may be locked up. In this position the lift ramp is perfectly positioned beneath the center of the vehicle's frame. The lift ramp may be raised hydraulically as well if additional work space is required beneath the vehicle, or the vehicle tires are to be removed.

LEVELING SYSTEM FOR LIFT DEVICE

A leveling system for a lift device includes a control system. The control system has programmed instructions to acquire operation data regarding operation of the lift device, fluidly couple a first leveling actuator and a second leveling actuator based on the operation data, acquire an update regarding the operation data, fluidly decouple the first leveling actuator and the second leveling actuator based on the update regarding the operation data, and selectively control the first leveling actuator and the second leveling actuator to (i) selectively reposition a first tractive element and a second tractive element relative to each other about a longitudinal axis defined by the lift device and (ii) selectively reposition the first tractive element and the second tractive element about a first lateral axis defined by the lift device. 1. A leveling system for a lift device , the leveling system comprising: acquire operation data regarding operation of the lift device;', 'fluidly couple two of a first leveling actuator, a second leveling actuator, a third leveling actuator, and a fourth leveling actuator based on the operation data;', 'acquire an update regarding the operation data;', 'fluidly decouple the two of the first leveling actuator, the second leveling actuator, the third leveling actuator, and the fourth leveling actuator based on the update regarding the operation data;', 'selectively control the first leveling actuator and the second leveling actuator to (i) selectively reposition a first tractive element and a second tractive element relative to each other about a longitudinal axis defined by the lift device and (ii) selectively reposition the first tractive element and the second tractive element about a first lateral axis defined by the lift device; and', 'selectively control the third leveling actuator and the fourth leveling actuator to (i) selectively reposition a third tractive element and a fourth tractive element relative to each other about the ...

TELESCOPING JACK FOR LIFTING LARGE CAPACITY TRUCKS

A jack, comprising: a top plate adapted to contact a load; a base plate positioned below the top plate; at least one actuator coupled perpendicularly between the base plate and the top plate; wherein the at least one actuator is operable to move the top plate between a lowered position and a raised position to thereby lower and raise the load; and, at least one locking assembly adapted to lock the top plate in the raised position. 1. A jack , comprising:a top plate adapted to contact a load;a base plate positioned below the top plate;at least one actuator coupled perpendicularly between the base plate and the top plate; wherein the at least one actuator is operable to move the top plate between a lowered position and a raised position to thereby lower and raise the load; and,at least one locking assembly adapted to lock the top plate in the raised position; wherein the at least one locking assembly includes a locking bar and a ratchet rack, the locking bar having an upper end and a lower end, the locking bar hinge mounted at the upper end proximate to the top plate, the ratchet rack inclining upward from the base plate toward the top plate and having at least one notch formed therein, the at least one notch adapted to receive and lock the lower end of the locking bar, and the lower end of the locking bar slidable up the ratchet rack and into the at least one notch as the top plate is moved from the lowered position to the raised position.2. The jack of claim 1 , wherein the at least one locking assembly further includes a lock release assembly adapted to unlock the top plate allowing the top plate to be moved from the raised position to the lowered position.3. The jack of claim 2 , wherein the lock release assembly includes a lock release plate inclining upward from the base plate toward the top plate claim 2 , the lock release plate moveable from a retracted position to an extended position to urge the lower end of the locking bar out of the at least one notch ...

PORTABLE INDPENDENT VEHICLE LIFT AND SUPPORT SYSTEM

An improved vehicle lift system is provided for lifting and supporting a vehicle. The vehicle lift system includes a portable front lift for lifting and supporting a front end of the vehicle, a portable rear lift for lifting and supporting a rear end of the vehicle, and a portable control station for remotely controlling the front lift and the rear lift from a safe and convenient location. The vehicle lift system may include hydraulics, pneumatics, electronics, and/or mechanical linkages for distributing and providing lifting power to the front lift and the rear lift. 1. A vehicle lift system comprising:a portable front lift comprising one or more front lift units and a set of wheels for moving the portable front lift;a portable rear lift comprising one or more rear lift units and a set of wheels for moving the portable rear lift; anda portable control station for controlling said front and rear lifts.2. The vehicle lift system of claim 1 , further comprising one or more front power lines connected to said control station and said front lift claim 1 , further comprising one or more rear power lines connected to said control station and said rear lift claim 1 , wherein said front and rear power lines are configured to provide lifting power to said front and rear lift units claim 1 , respectively.3. The vehicle lift system of claim 2 , wherein said front power lines include at least two front pneumatic lines claim 2 , wherein said rear power lines include at least two rear pneumatic lines claim 2 , wherein each of said front lift units comprises a pneumatic cylinder powered by one of said front pneumatic lines and a mechanical lock actuator powered by another of said front pneumatic lines claim 2 , wherein each of said rear lift units comprises a pneumatic cylinder powered by one of said rear pneumatic lines and a mechanical lock actuator powered by another of said rear pneumatic lines.4. The vehicle lift system of claim 1 , wherein said rear lift comprises at least ...

Portable Auto Rack

A portable auto lift includes a plurality of vehicle engaging arms configured to selectively engage and support a vehicle, a frame coupled to and supporting the plurality of vehicle engaging arms a moveable carriage coupled to and supporting the frame and the plurality of vehicle engaging arms; a vertical support post configured to receive the movable carriage that supports frame and the vehicle engaging arms, the vertical support post further including a vertically adjustable portion for selectively vertically adjusting the height of the vertical support post; and a hydraulic system for selectively moving the moveable carriage along a length of the vertical post, including selectively moving the carriage along a length of the vertically adjustable portion. The vertically adjustable portion maybe pivoted, removable, or telescoping. 1. A portable auto lift comprising:a plurality of vehicle engaging arms configured to selectively engage and support a vehicle;a frame coupled to and supporting the plurality of vehicle engaging armsa moveable carriage coupled to and supporting the frame and the plurality of vehicle engaging arms;a vertical support post configured to receive the movable carriage that supports frame and the vehicle engaging arms, the vertical support post further including a vertically adjustable portion for selectively vertically adjusting the height of the vertical support post;a hydraulic system for selectively moving the moveable carriage along a length of the vertical post, including selectively moving the carriage along a length of the vertically adjustable portion.2. The portable auto lift according to wherein the vertically adjustable portion is one of pivoted claim 1 , removable claim 1 , or telescoping.3. The portable auto lift according to further including an array of LED lights on at least one vehicle engaging arm.4. The portable auto lift according to wherein the lights include adjustability and the ability to turn off individual LED lights ...

TELESCOPING JACK FOR LIFTING LARGE CAPACITY TRUCKS

A jack, comprising: a top plate adapted to contact a load; a base plate positioned below the top plate; at least one actuator coupled perpendicularly between the base plate and the top plate; wherein the at least one actuator is operable to move the top plate between a lowered position and a raised position to thereby lower and raise the load; and, at least one locking assembly adapted to lock the top plate in the raised position. 1. A jack , comprising:a top plate adapted to contact a load;a base plate positioned below the top plate;at least one actuator coupled perpendicularly between the base plate and the top plate; wherein the at least one actuator is operable to move the top plate between a lowered position and a raised position to thereby lower and raise the load; and,at least one locking assembly adapted to lock the top plate in the raised position; wherein the at least one locking assembly includes a locking bar and a ratchet rack, the locking bar having an upper end and a lower end, the locking bar hinge mounted at the upper end proximate to the top plate, the ratchet rack inclining upward from the base plate toward the top plate and having at least one notch formed therein, the at least one notch adapted to receive and lock the lower end of the locking bar, and the lower end of the locking bar slidable up the ratchet rack and into the at least one notch as the top plate is moved from the lowered position to the raised position.2. The jack of claim 1 , wherein the at least one locking assembly further includes a lock release assembly adapted to unlock the top plate allowing the top plate to be moved from the raised position to the lowered position.3. The jack of claim 2 , wherein the lock release assembly includes a lock release plate inclining upward from the base plate toward the top plate claim 2 , the lock release plate moveable from a retracted position to an extended position to urge the lower end of the locking bar out of the at least one notch ...

FLOOR JACK CHASSIS

A chassis member for a hydraulic floor jack having angled side frame members which have a curved upper surface and provide an inner wall attached to a rear side frame and an outer wall attached to a tapered surface of a caster support bracket. 1. A chassis for a hydraulic floor jack comprising:a front chassis member;a pair of rear side members;a first side member connected at a first end to the front chassis member;a second side member connected at a first end to the front chassis member;the first side member and the second side member each being unitary and having a curved upper edge wall, an exterior wall, and an interior wall, the exterior wall and the interior wall having a spaced distance between a lower most portion of the respective edge walls which is greater than a spaced distance along an upper portion of the opposing edge walls, the upper edge walls and the inner surface of the curved upper edge wall defining a open cavity.2. The chassis according to wherein a length of the curved upper edge is greater than a length of the lower most portion of the exterior edge wall and the lower most portion of the inner edge wall.3. The chassis according to wherein the first side member and the second side member each define a corresponding second end claim 1 , an upper edge of each side member second end is attached to caster mounting bracket.4. The chassis according to wherein a portion of the exterior side wall member is attached to the caster mounting bracket.5. The chassis according to wherein the caster mounting bracket further defines a horizontal portion for receiving there through a caster support bolt and further defining a non-horizontal portion which has an inner edge bracket wall which is attached to an exterior surface of the respective rear side member exterior wall.6. The chassis according to wherein the included angle defined between the exterior wall and the interior wall of the respective side members is between about 25 to about 45 degrees. This ...

Hydraulic jack capable of quickly lifting load

A hydraulic jack capable of quickly lifting a load includes a frame ( 1 ) mounted with a lifting arm ( 2 ), a long connecting rod, a tray ( 4 ), a bracket and a hydraulic oil pump ( 3 ) for driving the lifting arm ( 2 ), and further includes a large pump ( 11 ) and a small pump ( 12 ) for supplying high pressure oil to the hydraulic oil pump ( 3 ). An inner cavity of the large pump ( 1 ) and a small pump core are axially connected to a hand press ( 8 ) respectively. The inner cavity of the large pump ( 11 ) is in communication with a first pressure regulation mechanism ( 9 ), and the inner cavity of the small pump ( 12 ) is in communication with a second pressure regulation mechanism ( 10 ). The first pressure regulation mechanism ( 9 ) comprise a first upper valve body ( 90 ) mounted on a lower valve body ( 33 ) , a first oil outlet ( 91 ) of a communicating oil compartment ( 32 ) provided on a side wall thereof, and a first oil inlet ( 92 ) provided at a bottom thereof, the first oil inlet ( 92 ) being in communication with the inner cavity of the large of the large pump ( 11 ). A central hole of the first upper valve body ( 90 ) is sequentially provided from bottom to top with a first lower steel ball ( 93 ) capable of blocking the first oil inlet ( 92 ), a first ball valve base ( 94 ), a first pressure spring ( 95 ), a first valve core ( 96 ) and a first valve rod ( 97 ), the first pressure spring ( 95 ) being disposed between the first ball valve base ( 94 ) and the first valve core ( 96 ). The second pressure regulation mechanism ( 10 ) and the first pressure regulation mechanism ( 9 ) have the same structure.

LEVELING SYSTEM FOR LIFT DEVICE

A lift device includes a chassis, a rear leveling assembly coupled to a rear end of the chassis, and a front leveling assembly coupled to a front end of the chassis. The rear leveling assembly includes a first rear actuator and a second rear actuator. The first rear actuator and the second rear actuator are selectively engageable to facilitate providing active control of a rear pitch adjustment and a rear roll adjustment of the rear leveling assembly. The front leveling assembly includes a first front actuator and a second front actuator. The first front actuator and the second front actuator are (i) selectively fluidly couplable to facilitate providing passive control of a front pitch adjustment and a front roll adjustment of the front leveling assembly and (ii) selectively fluidly decouplable to facilitate providing active control of the front pitch adjustment and the front roll adjustment of the front leveling assembly. 1. A lift device , comprising:a chassis having a front end and a rear end; a first rear actuator; and', 'a second rear actuator, wherein the first rear actuator and the second rear actuator are selectively engageable to facilitate providing active control of a rear pitch adjustment and a rear roll adjustment of the rear leveling assembly; and, 'a rear leveling assembly coupled to the rear end of the chassis, the rear leveling assembly including a first front actuator; and', 'a second front actuator, wherein the first front actuator and the second front actuator are (i) selectively fluidly couplable to facilitate providing passive control of a front pitch adjustment and a front roll adjustment of the front leveling assembly and (ii) selectively fluidly decouplable to facilitate providing active control of the front pitch adjustment and the front roll adjustment of the front leveling assembly., 'a front leveling assembly coupled to the front end of the chassis, the front leveling assembly including2. The lift device of claim 1 , wherein each of the ...

AUTONOMOUS VEHICLE JACK SYSTEM

An autonomous jack system. The system provides an autonomous jack housed in a storage condition under a vehicle. The autonomous jack having an extensible jack arm pivotably connected to a body with a motive source and lockable tracks to exit its storage condition and traverse uneven terrain and lock its track at a point there along. The system embodies placing lift points along the underside of a vehicle, each lift point associated with a wheel that may need to be lifted off a supporting surface. The lift point includes an identifier that may send an indication of the lift point to the autonomous jack having sensors to read the indication and navigate the supporting surface. The lift point is identified through a computer-implemented control panel operated by a user. The jack arm terminates in a hand dimensioned and adapted to operatively associate with the identified lift point. 1. An autonomous lifting system for a passenger vehicle , comprising:one or more lift points associated with an underside of the passenger vehicle; and a body comprising a curved cutout formed along an upper portion of the body;', a power source to traverse a terrain;', 'one or more guiding sensors operatively associated with the power source;', 'wherein the extensible jack arm is cylindrical and telescoping, the extensible jack arm extending from a distal end to a proximal end; and', 'a pivot point connecting the proximal end to the body so that the extensible jack arm moves between a storage position and one of a plurality of operable positions, where in the storage position an entirety of the extensible jack arm is adjacent the curved cutout; and, 'an extensible jack arm pivotably connected to the body, the extensible jack arm being dimensioned to operatively associate with each lift point, the autonomous jack having], 'an autonomous jack comprisingan identifier physically associated with each lift point, wherein each identifier is readable by the one or more guiding sensors in such a ...

FLOOR JACK WITH INTEGRATED SUPPORT AND METHOD OF USE

A hydraulic floor jack with an integrated support is disclosed. The floor jack can be used with the floor jack oriented in any orientation relative to the orientation of a vehicle to be raised. The support remains suspended above the ground allowing the floor jack to roll along the ground while the vehicle is being raised. The support is then biased firmly on the ground, under weight of the vehicle, while the vehicle is suspended. A method of use of a hydraulic floor jack is also disclosed. 1. A hydraulic floor jack , comprising:a frame;a plurality of wheels operatively coupled to the frame and configured to rest on a support surface and suspend the frame above the support surface;a hydraulic lift mechanism operatively coupled to the frame;a first linear rack hingedly coupled to the frame, the first linear rack comprising a first array of teeth along a first surface thereof;a second linear rack hingedly coupled to the frame, the second linear rack comprising a second array of teeth along a second surface thereof;a support coupled between the first and second linear racks, wherein the support may be rotated between a loaded position in contact with the support surface and an unloaded position above the support surface, wherein, while in the unloaded position, the hydraulic floor jack is free to roll along the support surface and, while in the loaded position, the hydraulic floor jack is prevented from rolling along the support surface due to friction between the support and the support surface;a biasing mechanism coupled between the frame and the support to bias the support toward the unloaded position; a first pawl operationally coupled to the first linear rack;', 'a second pawl operationally coupled to the second linear rack; and', the pawl structure is moveable between an engaged position and a disengaged position;', 'the first and second pawls successively engage the first and second arrays of teeth, respectively, in the engaged position in response to the ...

Specialty dolly

Systems and methods provide a specialized dolly that works with a hydraulic floor jack and together the assembly performs the lifting and moving of vehicles with ease and efficiency. The configuration and design of the dolly enables a standard hydraulic floor jack to be positioned within a frame of the dolly in a stationary position. A handle of a hydraulic floor jack can then be used to maneuver the combination dolly/floor jack assembly with ease on the floor of the repair shop. The combination dolly/floor jack assembly can then be positioned under the undercarriage of a disabled vehicle and used to move the vehicle to a desired location with greatly-reduced rolling resistance. The dolly may be designed an d configured to have stationary low resistance front rear wheel assemblies, both of which provide for convenient maneuvering and steering. The dolly's wheel tracks (distance between front wheels) and its wheelbase length (distance between front and rear wheels) allows the dolly to be stable and significantly maneuverable, especially over or around potholes, slopes, and ramps, and at the same time provides greater safety for the operating technician.

ADJUSTABLE HYDRAULIC JACK WITH A SLIDER LOCKING STRUCTURE

An adjustable hydraulic jack with a slider locking structure that includes a chassis, hydraulic assembly, boom assembly, and handle lever. The boom assembly includes a bracket, a fore arm, and a rear arm. The bracket includes a pull handle, left and right bracket side-plates, and a bracket-fixing pin. The bracket is connected to one end of the fore arm, the other end of the fore arm is connected to one end of the rear arm, and the other end of the rear arm is connected to the chassis. The left and right bracket side-plates have left and right side-plate sockets on their respective bottoms; the fore arm has left and right sliding chutes and a spring-loaded fixing pin fixed on its upper end. A slider locking device is arranged between the bracket and the fore arm, and includes left and right sliders, a spring and at least one pin shaft. 1. An adjustable hydraulic jack with a slider locking structure , comprising a chassis , a hydraulic assembly , a boom assembly , and a handle lever , wherein , the boom assembly comprises a bracket , a fore arm , and a rear arm; the bracket comprises a pull handle , a left bracket side-plate , a right bracket side-plate , and a bracket fixing pin , and is pivotally jointed to one end of the fore arm via the bracket fixing pin , the other end of the fore arm is pivotally jointed to one end of the rear arm via a connecting shaft , and the other end of the rear arm is pivotally jointed to the chassis , wherein , the left bracket plate has a left side-plate socket with a downward opening on its bottom in the height direction , and the right bracket side-plate has a right side-plate socket with a downward opening on its bottom in the height direction; the fore arm has a left sliding chute and a right sliding chute arranged in symmetry on its left side and right side , and has a spring-loaded fixing pin fixed on its upper end in the height direction; a slider locking device is arranged between the bracket and the fore arm , and comprises a ...

Wheel Changing Assembly

A wheel changing assembly for safely changing a wheel of a vehicle includes a jack that comprises a first housing. A first power module, a first microprocessor, a pump and a lift are coupled to and positioned in the first housing. The first microprocessor is operationally coupled to the first power module. The pump is operationally coupled to the first microprocessor. The lift is fluidically coupled to the pump. A plate is coupled to a second end of the lift. A plurality of wheels is coupled to a bottom of the first housing. A camera, a plurality of lights and a locator, which are coupled to and positioned in the plate, are operationally coupled to the first microprocessor. The camera is configured to image an underside of the vehicle during placement of the jack. The locator is configured to signal proper positioning of the jack relative to the frame of the vehicle. 1. A wheel changing assembly comprising:a jack comprising a first housing;a first power module coupled to and positioned in said first housing;a first microprocessor coupled to and positioned in said first housing, said first microprocessor being operationally coupled to said first power module;a pump coupled to and positioned in said first housing, said pump being operationally coupled to said first microprocessor;a lift coupled to and positioned in said first housing, said lift being fluidically coupled to said pump;a plate coupled to a second end of said lift;a plurality of wheels coupled to a bottom of said first housing;a camera coupled to and positioned in said plate, said camera being operationally coupled to said first microprocessor, wherein said camera is configured to image an underside of the vehicle during placement of said jack;a plurality of lights coupled to and positioned in said plate, said lights being operationally coupled to said first microprocessor, wherein said lights are configured to project light upwardly from said plate;a locator coupled to and positioned in said plate, said ...

Mobile Lifting Column with Displacement System for Lifting a Vehicle, and Lifting System and Method Therefor

The present invention relates to a mobile lifting column for lifting a vehicle, and system and method therefor. The lifting system according to the invention includes: a frame with a moveable carrier configured for carrying the vehicle; a drive which acts on the carrier and is configured for raising and/or lowering the carrier relative to the frame; a displacement mechanism configured for positioning the lifting column; and a controller configured for controlling movement of the carrier, wherein the displacement mechanism has a displacement frame including a housing, a wheel that can be moved relative to this frame between a displacement and a stationary position, a counter force element, and a steering handle that is operatively coupled to the wheel with a linkage mechanism that is configured for moving the wheel relative to this frame. 1. A mobile lifting column for lifting a vehicle , the lifting column comprising:a frame with a moveable carrier configured for carrying the vehicle;a drive which acts on the carrier and is configured for raising and/or lowering the carrier relative to the frame;a displacement mechanism configured for positioning the lifting column; anda controller configured for controlling movement of the carrier,wherein the displacement mechanism comprises:a displacement frame comprising a housing, and a wheel that is provided at a first end of the housing, wherein the wheel is moveable relative to the frame between a displacement position wherein the lifting column can be displaced and a stationary position wherein the lifting column is in a stationary position;a counter force element that is providing in or on the frame; anda steering handle that is operatively coupled to the wheel with a linkage mechanism that is configured for moving the wheel relative to the frame, and wherein the steering handle is connected to the displacement frame at a second end of the housing.2. The lifting column according to claim 1 , wherein the counter force ...

Detachable Service Jack Adapter for Mounting Vehicular Spindles

An adapter bracket operable to detachably mount to the seat of a vehicular jack, permitting the vehicular jack to support an automotive spindle during servicing. The adapter bracket may comprise a mounting mechanism operable to detachably mount to a wide variety of seat configurations. The adapter bracket may comprise an adjustable arm assembly operable to support spindles having a wide variety of stud configurations. 1. A vehicular spindle frame comprising:a bracket having a mounting surface and an interface surface, the mounting surface and the interface surface forming a substantially perpendicular angle, the interface surface having an arm-slot and the mounting surface comprising a mounting mechanism configured to mount the bracket onto a service jack;an adapter arm, the adapter arm operable to be inserted through the arm-slot and operable to be positioned within the arm slot along a direction substantially perpendicular to the interface surface;a positioning nut operable to engage the adapter arm and operable to set a position of the adapter arm in a direction substantially perpendicular to the interface surface when the adapter arm is inserted through the arm-slot; anda stud washer coupled to the adapter arm such that the adapter arm defines an axis about which the stud washer may rotate, the stud washer operable to receive a stud of a vehicular spindle.2. The vehicular spindle frame of claim 1 , comprising a locking nut operable to engage the adaptor arm and cooperate with the positioning nut to set a position of the adapter arm relative to the interface surface.3. The vehicular spindle frame of claim 1 , wherein the stud washer is operable to receive a variety of studs having a variety of configurations.4. The vehicular spindle frame of claim 1 , wherein the mounting mechanism comprises a mounting slot and a mounting bolt operable to be threaded through mounting slot.5. The vehicular spindle frame of claim 1 , wherein the number of mounting slots comprises a ...

LEVELING SYSTEM FOR LIFT DEVICE

A lift device includes a chassis having a first end and an opposing second end, a first actuator coupled to the first end of the chassis, a second actuator coupled to the first end of the chassis, a third actuator coupled to the opposing second end of the chassis, a fourth actuator coupled to the opposing second end of the chassis, and a control system. The control system is configured to fluidly couple at least two of the first actuator, the second actuator, the third actuator, and the fourth actuator, and fluidly decouple and actively control the at least two of the first actuator, the second actuator, the third actuator, and the fourth actuator. 1. A lift device comprising:a chassis having a first end and an opposing second end;a first actuator coupled to the first end of the chassis;a second actuator coupled to the first end of the chassis;a third actuator coupled to the opposing second end of the chassis;a fourth actuator coupled to the opposing second end of the chassis; and fluidly couple at least two of the first actuator, the second actuator, the third actuator, and the fourth actuator; and', 'fluidly decouple and actively control the at least two of the first actuator, the second actuator, the third actuator, and the fourth actuator., 'a control system configured to2. The lift device of claim 1 , further comprising a plurality of tractive elements claim 1 , wherein each of the first actuator claim 1 , the second actuator claim 1 , the third actuator claim 1 , and the fourth actuator is configured to couple one of the plurality of tractive elements to the chassis claim 1 , and wherein each of the plurality of tractive elements is repositionable relative to (i) a longitudinal axis defined by the chassis and (ii) a lateral axis defined by the chassis.3. The lift device of claim 1 , wherein the control system is configured to selectively control the at least two of the first actuator claim 1 , the second actuator claim 1 , the third actuator claim 1 , and the ...

VEHICLE LIFT ASSEMBLY

A vehicle system includes a chassis and a lift assembly. The chassis includes a frame defining a first aperture and a second aperture. The lift assembly includes an adapter assembly and a lift device. The adapter assembly includes (a) an adapter defining a first pin aperture, a second pin aperture, and an adapter aperture, (b) a first pin extending through the first aperture and the first pin aperture and a second pin extending through the second aperture and the second pin aperture to selectively couple the adapter to the frame, and (c) a cross member configured to be received by the adapter aperture. The lift device includes a pair of receivers configured to engage the cross member of the adapter assembly to support the cross member. The first pin aperture and the adapter aperture each extend laterally when the adapter is coupled to the frame. 1. A vehicle system , comprising:a chassis including a frame defining a first aperture and a second aperture; and [ an adapter defining a first pin aperture, a second pin aperture, and an adapter aperture;', 'a first pin extending through the first aperture and the first pin aperture and a second pin extending through the second aperture and the second pin aperture to selectively couple the adapter to the frame, wherein the first pin aperture and the adapter aperture each extend laterally when the adapter is coupled to the frame; and', 'a cross member configured to extend laterally to be received by the adapter aperture; and, 'an adapter assembly including, a lift base; and', 'a pair of receivers coupled to the lift base and configured to engage the cross member of the adapter assembly to support the cross member., 'a lift device including], 'a lift assembly including2. The vehicle system of claim 1 , wherein the adapter is a first adapter claim 1 , and wherein the adapter assembly includes a second adapter selectively coupled to the frame and coupled to the cross member.3. The vehicle system of claim 2 , wherein the second ...

TIRE LIFTER

A tire lifter is provided having a horizontal frame in a vertical support, the horizontal frame providing for wheel movement of the tire lifter. A drive lift mechanism is positioned within the vertical upright of the frame and includes a screw drive that is used to raise and lower a pair of support arms which cradle a tire or a tire and wheel combination. Further, the support arms which cradle the tire can also be adjusted in a forward and rearward direction to allow for easier placement of a tire relative to an automobile. 1. A lifting apparatus for a tire mounted on a rim comprising:a frame having a horizontal base and a vertical upright;a plurality of wheels supported by the horizontal base;a lifting mechanism secured within an interior channel defined by the vertical upright, the lift mechanism adapted to selectively raise and lower a pair of support arms, the support arms adapted for engaging a tire and rim combination;wherein the support arms are laterally moveable through apertures defined by a horizontal support bar of the horizontal base, and at a perpendicular angle relative to the vertical upright, the support arm being further connected to a handle.2. The lifting apparatus according to claim 1 , further comprising an adjustable height vertical support bar claim 1 , adapted for engaging an upper surface of a tire mounted on a rim so as to provide a stabilizing force.3. The lifting apparatus according to wherein the adjustable vertical support bar may be rotated to position the support bar relative to a support bar.4. The lifting apparatus according to wherein the lifting mechanism can be actuated by use of a manual handle.5. The lifting apparatus according to wherein the lifting mechanism can be actuated by use of a electric motor.6. The lifting apparatus according to wherein the lifting mechanism is a screw drive.7. The lifting apparatus according to wherein the lifting mechanism can be actuated by use of a hydraulic cylinder.8. The lifting apparatus ...

Hydraulic Actuator

A hydraulic actuator with a minimal closed height includes a housing ( 11 ), a chamber ( 12 ), and a fluid inlet ( 13 ) formed within the housing and arranged for communicating high pressure fluid to the chamber ( 12 ), the chamber ( 12 ) being partially divided into an inner portion (P 1 ) and a radially outer portion (P 2 ) by a longitudinally extending sleeve ( 123 ) having an open end ( 1231 ) proximal to a base ( 121 ) of the chamber ( 12 ) and spaced apart therefrom, the outer portion (P 2 ) being arranged to communicate high pressure fluid from the fluid inlet( 13 ) to the inner portion (P 1 ) through a space (S) defined between the end ( 1231 ) of the sleeve ( 123 ) and the base ( 121 ), and the inner portion (P 1 ) being adapted to receive a piston ( 100 ) such that the piston ( 100 ) is slidably actuable in dependence on the high pressure fluid received from the outer portion (P 2 ).

PNEUMATIC WHEEL LIFT SYNCHRONIZATION

A self-synchronizing wheel lift system configured to lift a vehicle using compressed air. The lift system comprises a plurality of pneumatic wheel lifts and a lift control system. The lift control system is configured to automatically synchronize the heights of the wheel lifts during vehicle lifting without causing any of the wheel lifts to completely stop during vehicle lifting. 1. A self-synchronizing wheel lift system configured to lift a vehicle using compressed air , said lift system comprising:a plurality of pneumatic wheel lifts; anda lift control system configured to automatically synchronize the heights of said wheel lifts during vehicle lifting without causing any of said wheel lifts to completely stop during vehicle lifting.2. The wheel lift system of claim 1 , wherein the lift control system is configured to automatically synchronize the heights of said wheel lifts during vehicle lowering without causing any of said wheel lifts to completely stop during vehicle lowering.3. The wheel lift system of claim 1 , wherein the lift control system comprises a position indication system claim 1 , a pneumatic control system claim 1 , and an electrical control system claim 1 , wherein said position indication system is configured to provide an indication of the heights of said wheel lifts during vehicle lifting claim 1 , wherein said pneumatic power control system is configured to control the flow of compressed air to said wheel lifts during lifting claim 1 , and wherein said electrical control system is configured to control said pneumatic control system based on said indication of heights provided by said position indication system.4. The wheel lift system of claim 3 , wherein each of said wheel lifts comprises a pneumatic main cylinder claim 3 , wherein said pneumatic control system comprises a plurality of pneumatic valves each associated with one of said main cylinders claim 3 , wherein each of said pneumatic valves is configured to control air flow into and/or ...

Combustion-powered lift system

A combustion-powered portable vehicle lift comprising a base, a post supported by the base, and a carriage assembly vertically shiftable relative to the post. The vehicle lift additionally comprises a combustion power system including a fuel tank and a combustion engine. The vehicle lift further comprises a hydraulic power system including a hydraulic reservoir, a hydraulic pump, and a hydraulic cylinder. As such, the combustion power system is operable to power the hydraulic power system to shift the carriage assembly relative to the post.

WHEEL LIFT

A wheel lift comprises a frame having ground engaging elements, a four bar linkage structure supported by the frame, lifting arms extending from the four bar linkage and for receiving and supporting a wheel and a handle for operating the four bar linkage to raise and lower the wheel. The frame defines an open space for receiving a wheel, for example a vehicle wheel. The lifting arms may be raised and lowered and locked in position to aid in removing and/or mounting vehicle wheels. 116-. (canceled)17. A wheel lift , comprising:a frame having ground engaging elements, the frame defining an open space for receiving a wheel, the frame comprising a U-shaped structure defined by a base bar and a pair of side bars extending from opposed sides of the base bar and a rearward extending bar extending from a mid-point of the base bar, at least one of the ground engaging elements supporting the rearward extending bar;a four bar linkage structure supported by the frame, in which the four bar linkage structure comprises a first four bar linkage at a first side of the wheel lift and a second four bar linkage at a second side of the wheel lift and further comprising bars connecting the first four bar linkage to the second four bar linkage;the base bar and the pair of side bars lie in a first plane and the first four bar linkage and the second four bar linkage each comprises upright members that extend perpendicularly to the plane;in each of the first four bar linkage and the second four bar linkage one of the upright members is secured to the U-shaped frame to be fixed relative to the frame during operation of the wheel liftlifting arms extending from the four bar linkage, the lifting arms being spaced apart on either side of the open space for receiving and supporting a wheel, the lifting arms defining a forward side of the wheel liftthe four bar linkage structure having a handle that extends rearwardly for operating the four bar linkage structure to raise and lower the wheel;the ...

RAPID LIFT FLOOR JACK

A linkage for a lifting device having a body, a lift arm pivotally attached to the body at a first pivot point and an actuator, includes a power arm pivotally attached to the body at a second pivot point. The power arm is also pivotally connected to the actuator at a third pivot point spaced at a first distance from the second pivot point. A connecting arm has a proximate end pivotally attached to the power arm and a distal end pivotally attached to the lift arm. The proximate end of the connecting arm is preferably connected to the power arm at a fourth pivot point which is spaced at a second distance from the second pivot point wherein the second distance is greater than the first distance, however the proximate end of the connecting arm can alternatively be connected to the power arm at the third pivot point. 1. In a lifting device having a body , a lift arm pivotally connected to the body at a first pivot point and an actuator mounted to the body , the actuator having an actuator rod which extends upon operation of the actuator , a linkage between the actuator rod and the lift arm comprising:a) a power arm pivotally attached to the body at a second pivot point and pivotally connected to the actuator rod at a third pivot point spaced at a first distance from said second pivot point; andb) a connecting arm having a proximate end pivotally attached to said power arm and a distal end pivotally attached to the lift arm.2. The linkage as in wherein said proximate end of said connecting arm is connected to said power arm at a fourth pivot point spaced at a second distance from said second pivot point; and said second distance is greater than said first distance.3. The linkage as in wherein said power arm has first and second ends claim 2 , said second pivot point is proximate said first end of said power arm claim 2 , said fourth pivot point is proximate said second end of said power arm and said third pivot point is between said first and second ends of said power arm ...

ELECTRIC TRANSPORTATION CART WITH ADJUSTABLE DECK

An electric transportation cart includes a deck having two first rails located on two sides thereof a base having multiple casters connected to the underside thereof and including two second rails on two sides thereof, a first link assembly and a second link assembly pivotably connected between the deck and the base, and a handle connected to one end of the base. A first bar is slidably connected between the two first rails, and a second bar is connected between the first link assembly and the second link assembly. A hydraulic cylinder is connected between the first bar and the second bar. The travel distance of the hydraulic cylinder is longer than that of the conventional transportation carts. Users operate the control unit to activate the hydraulic cylinder to drive the first and second link assemblies to control the deck to move up and down. 1. An electric transportation cart comprising:a deck having a deck front portion and a deck rear portion, the deck rear portion including two first rails which are located on two sides of the deck, a first opening defined through a bottom wall of the two sides of the deck and communicating with the first rail corresponding thereto;a base being a rectangular frame and having multiple casters connected to an underside thereof, the base having a base front portion and a base rear portion which includes two second rails, the two second rails located on two sides of the base, a second opening defined through a top wall of the two sides of the base and communicating with the second rail corresponding thereto, a handle connected to one end of the base and a switch unit connected to the handle;a first bar slidably connected between the two first rails;a first link assembly and a second link assembly pivotably connected between the deck and the base, the first link assembly including a first link and a second link, the second link assembly including a third link and a fourth link, the first and second links located on a first side of ...

TROLLEY AND METHOD OF USING THE TROLLEY FOR VERTICAL ROLLING

A trolley for supporting the plate during vertical rolling of the plate is provided. In one embodiment, the trolley can include a support body configured to provide support for the trolley; a plurality of wheels configured to allow the trolley to move across a floor; a lifting arm supported by the support body, wherein the lifting arm is movable about a first position and a second position; a pump handle configured to raise the lifting arm between the first position and the second position; and a plate holder configured to move with the lifting arm and hold the plate in place relative to the trolley. 1. A trolley for supporting a plate during vertical rolling of the plate , the trolley comprising:a support body configured to provide support for the trolley;a plurality of wheels configured to allow the trolley to move across a floor;a lifting arm supported by the support body, wherein the lifting arm is movable about a first position and a second position;a pump handle configured to raise the lifting arm between the first position and the second position; anda plate holder configured to move with the lifting arm and hold the plate in place relative to the trolley.2. The trolley as claimed in claim 1 , wherein the plate holder further comprises a toggle clamp configured to increase the force that the plate holder applies to the plate.3. The trolley as claimed in claim 1 , wherein the plate holder further comprises a toggle clamp and a plate clamp claim 1 , wherein the toggle clamp is configured to move the plate clamp such that the force applied by the plate holder to the plate is increased.4. The trolley as claimed in claim 1 , further comprising a support bracket rotatably supported by the lifting arm claim 1 , wherein the support bracket connects the plate holder and the lifting arm claim 1 , such that the support bracket is configured to allow the plate holder to remain in substantially the same position as the lifting arm moves between the first position and the ...

Lifting System with Lock Position Sensor for Load Indication, and Method Therefor

Disclosed is a lifting device, lifting system and method for lifting a vehicle. The lifting device includes a frame with a moveable carrier that is configured for carrying the vehicle; a drive which acts on the carrier and is configured for raising and/or lowering the carrier relative to the frame; a height sensing system that is configured for directly and/or indirectly measuring the height of the carrier; and a locking mechanism for mechanically locking the carrier at a desired height, including a moveable locking element capable of locking and unlocking the carrier. The locking mechanism includes a lock sensor for measuring the position of the locking element. 1. A lifting device for lifting a vehicle , the lifting device comprising:a frame with a moveable carrier that is configured for carrying the vehicle;a drive which acts on the carrier and is configured for raising and/or lowering the carrier relative to the frame;a height sensing system that is configured for directly and/or indirectly measuring the height of the carrier; anda locking mechanism for mechanically locking the carrier at a desired height comprising a moveable locking element capable of locking and unlocking the carrier,wherein the locking mechanism comprises a lock sensor for measuring the position of the locking element.2. The lifting device according to claim 1 , wherein the locking element comprises a locking pawl.3. The lifting device according to claim 1 , wherein the lock sensor comprises a position indicator.4. The lifting device according to claim 1 , further comprising a display and a connector for connecting the lock sensor to the display to enable display of the status of the locking element.5. The lifting device according to claim 4 , wherein the display is one or more of a display of the lifting device such as a touch screen claim 4 , a display on a remote control claim 4 , and a central display.6. The lifting device according to claim 1 , further comprising a controller that is ...

JACK WITH A PROTECTING STRUCTURE OF A PUMP PISTON AND METHOD FOR USING THE SAME

A jack with a protecting structure of a pump piston and a method for using the same are provided. The jack includes a housing, a base located inside the housing, and the protecting structure. An oil cylinder and a pump body are installed on the base. A pump piston is installed on the pump body. A spring is installed on the pump piston and the pump body. A stop protrusion is arranged on the pump piston. The protecting structure includes a dustproof sleeve and a wool felt. The dustproof sleeve is installed on the base and the pump piston. One end of the dustproof sleeve is detachably fixed on the base through a fastener. The other end of the dustproof sleeve is connected to an end portion of the pump piston. The shape of the dustproof sleeve is set into a wavy type. 1. A jack with a protecting structure of a pump piston , comprising a housing , a base located inside the housing , and the protecting structure; wherein an oil cylinder and a pump body are installed on the base; a pump piston is installed on the pump body; a spring is installed on the pump piston and the pump body; a stop protrusion is arranged on the pump piston; the protecting structure comprises a dustproof sleeve and a wool felt; the dustproof sleeve is installed on the base and the pump piston; a first end of the dustproof sleeve is detachably fixed on the base through a fastener; a press ring is installed between the dustproof sleeve and the fastener; the base is further provided with a vent , and the wool felt is installed in the vent.2. The jack according to claim 1 , wherein a cushion plate is installed between the spring and a second end of the dustproof sleeve of the protecting structure claim 1 , wherein the second end of the dustproof sleeve is a top end of the dustproof sleeve; a press plate is installed between the top end of the dustproof sleeve and the stop protrusion.3. The jack according to claim 1 , wherein a configuration of the dustproof sleeve of the protecting structure is wave- ...

WIRE PULLER LIFT DOLLY

Apparatus adapted for use with an existing wire tugger includes a primary frame, a slide frame configured to receive the wire tugger, and a jack that causes the slide frame and existing wire tugger to move up and down, thereby enabling a user to position the upper end adapter of the existing wire tugger proximate to an overhead wire pull location. The system enables the existing wire puller to be transported and physically oriented to address a broader range of overhead wire pulling applications on jobsites. A wheeled cart facilitates traversing throughout jobs and vertical wire-puller mounting, thereby mitigating space constraints while allowing for easier set-up and a broader range of uses. Various interchangeable end adapters facilitate temporary coupling and stabilization with respect to different conduit sizes.

VEHICLE LIFT ASSEMBLY

A vehicle includes a chassis and a lift assembly. The chassis includes a frame defining a pair of tow points. The lift assembly includes an adapter assembly and a lift device. The adapter assembly includes a first adapter and a second adapter, each adapter configured to be coupled to one of the pair of tow points, and each adapter defining an adapter aperture, and a cross member extending laterally across the vehicle and received by each adapter aperture. The lift device includes a lift base and a pair of receivers coupled to the lift base and configured to engage with the cross member of the adapter assembly. The pair of receivers support the cross member in a vertical direction. The adapter assembly is configured to receive and redirect a lifting force of the lift device to selectively reconfigure the vehicle between a lowered position and an elevated position. 1. A vehicle , comprising:a chassis including a frame defining a pair of tow points; and [ a first adapter and a second adapter, each adapter configured to be coupled to one of the pair of tow points, and each adapter defining an adapter aperture; and', 'a cross member extending laterally across the vehicle and received by each adapter aperture; and, 'an adapter assembly including, a lift base; and', 'a pair of receivers coupled to the lift base and configured to engage with the cross member of the adapter assembly, wherein the pair of receivers support the cross member in a vertical direction;, 'a lift device including, 'wherein the adapter assembly is configured to receive and redirect a lifting force of the lift device to selectively reconfigure the vehicle between a lowered position and an elevated position., 'a lift assembly including2. The vehicle of claim 1 , wherein the pair of tow points each define a tow aperture claim 1 , wherein each adapter includes a pair of plates spaced apart from one another and disposed on either side of one of the pair of tow points claim 1 , and wherein each adapter is ...

Wheel Lift and Transport Device

A device for lifting, supporting and moving large vehicle wheels allows a single person to install and remove wheels. The device has a U-shaped frame with two opposed straight sides connected by a jack side of the frame. Lift arms rotatably affixed to the opposed straight sides have rotatable rollers that contact the vehicle wheel. The lift arms are connected to a jack via chains that translate vertical motion from the jack to raise the lift arms, and thus raise the vehicle wheel. The rollers allow a user to rotate the vehicle wheel to position it for reinstallation onto the vehicle. A stabilizer bar rotatably affixed to the frame contacts the vehicle lift to stabilize the wheel during use of the device. 1. A vehicle Wheel lift device comprisinga U-shaped frame with two opposed straight sides affixed to a jack side, the opposed straight sides spaced apart to receive opposite sides of a vehicle wheel;lift arms rotatably affixed to the opposed straight sides, the lift arms each comprising a roller;a jack centrally affixed to the jack side of the frame, the jack connected to the lift arms via one or more chains, wherein when the jack is actuated, a bracket on the jack moves substantially vertically and the chains draw the lift arms towards one another such that the rollers rotatably contact and lift the vehicle wheel.2. The device of claim 1 , wherein the jack is rotatable substantially 90 degrees inwardly with respect to the frame claim 1 , when the jack is not in use.3. The device of claim 1 , wherein the lift arms are rotatable inwardly from a deployed position wherein the lift arms are disposed substantially 30 degrees from a horizontal plane through 150 degrees of rotation to a stowed position.4. The device of claim 1 , further comprising three wheels swivelly affixed to the frame configured to support and transport the device claim 1 , the three wheels comprising one wheel centrally affixed beneath the jack side of the frame and one wheel affixed beneath each ...

Mechanical Tire Lift

The present invention provides a tire lifting device that allows an operator to lift vehicle and remove vehicle tires remotely, thereby providing a more efficient and effortless vehicle tire removal operation to the operator. The device is configured to capture, remove, replace, and minutely position vehicle wheel and tire for easy re-installation without involving lifting by the technician. The device further is powered by hydraulic and or electric operation. The device comprises a steel frame with at least at least two fixed wheels, at least one steerable wheel and drives for steering the device over surface. The device further comprises a remote control unit to perform complex motions of the device remotely. A main jack and roller stand raises and lowers the wheel and tire for height positioning, while a support tubes and tire guide hold the tire erect either for removing or remounting the vehicle tire. 1. A tire lifting device , comprising:a frame having at least two fixed wheels and at least one steerable wheel with a drive member;a stand comprising at least two rollers disposed at opposite sides of the stand for supporting a tire and wheel on top of said rollers and in direct contact therewith for allowing said tire and wheel to rotate thereto;a pair of adjustable support tubes disposed at opposite sides of the frame, wherein each adjustable support tube coupled to a tire guide, wherein the tire guide configured to support and stabilize the tire and wheel in upright position;a dual action cylinder coupled to the tire guide configured to move said tire guide between an extended configuration and a retracted configuration;a jack disposed beneath the stand for raising and lowering the stand;a computing device in communication with the pair of adjustable support tubes, dual action cylinder, hydraulic jack and a drive member, anda remote-control unit in communication with the computing device comprises a plurality of control member for remotely controlling the tire ...

LEVELING SYSTEM FOR LIFT DEVICE

A lift machine includes a base having a first end and a second end, a first assembly, and a second assembly. The first end has first and second pivot points defining a first lateral axis. The second end has third and fourth pivot points defining a second lateral axis. The first assembly is pivotably coupled to the first and second pivot points. The first assembly extends away from the base in a first direction such that first and second tractive elements are longitudinally offset from the first lateral axis and spaced from the first end of the base. The second assembly is pivotably coupled to the third and fourth pivot points. The second assembly extends away from the base in a second direction such that third and fourth tractive elements are longitudinally offset from the second lateral axis and spaced from the second end of the base. 1. A lift machine comprising:a base having a first end and an opposing second end, the first end having a first pivot point and a second pivot point defining a first lateral axis, the opposing second end having a third pivot point and a fourth pivot point defining a second lateral axis;a boom coupled to the base;a first assembly pivotably coupled to the first pivot point and the second pivot point, the first assembly including a first tractive element and a second tractive element, the first assembly extending away from the base in a first direction such that the first tractive element and the second tractive element are longitudinally offset from the first lateral axis and spaced from the first end of the base;a second assembly pivotably coupled to the third pivot point and the fourth pivot point, the second assembly including a third tractive element and a fourth tractive element, the second assembly extending away from the base in an opposing second direction such that the third tractive element and the fourth tractive element are longitudinally offset from the second lateral axis and spaced from the opposing second end of the base ...

Module Moving Systems

The present disclosure generally pertains to a system for lifting and moving pre-fabricated building modules. In certain embodiments, a lifting apparatus is provided, wherein a frame is configured to attach to the exterior surface of a pre-fabricated module and wherein the lifting apparatus, along with an attached pre-fabricated module, may be lifted and moved either by rolling the lifting apparatuses or by hoisting the pre-fabricated module using a crane attached to brackets on the lifting apparatuses. The height of the lifting apparatus may be adjusted using a source of force, such as a crank-operated or hydraulic jack, to attach the lifting apparatus to a pre-fabricated module.

LEVELING SYSTEM FOR LIFT DEVICE

A leveling assembly for a lift device includes a carrier arm, an axle, a first actuator, and a second actuator. The carrier arm includes a base that defines a first interface configured to pivotally couple the carrier arm to a chassis of the lift device to facilitate a pitch adjustment of the leveling assembly, a projection that defines a second interface, and a transition that extends angularly between the base and the projection such that the projection is elevated relative to the base. The axle defines a third interface positioned to engage with the second interface to pivotally couple the axle to the carrier arm to facilitate a roll adjustment of the leveling assembly. The first actuator is pivotally coupled to a first lateral end of the axle. The second actuator is pivotally coupled to an opposing second lateral end of the axle. 1. A lift device , comprising:a chassis having a front end and a rear end;a boom pivotally coupled to the chassis; a rear carrier arm pivotally coupled to the rear end of the chassis to facilitate a rear pitch adjustment of the rear leveling assembly;', 'a rear axle pivotally coupled to the rear carrier arm to facilitate a rear roll adjustment of the rear leveling assembly, the rear axle having a first lateral end and an opposing second lateral end;', 'a first rear actuator pivotally coupled to the rear end of the chassis and the first lateral end of the rear axle; and', 'a second rear actuator pivotally coupled to the rear end of the chassis and the opposing second lateral end of the rear axle, wherein the first rear actuator and the second rear actuator facilitate providing active control of the rear pitch adjustment and the rear roll adjustment; and, 'a rear leveling assembly including a front carrier arm pivotally coupled to the front end of the chassis to facilitate a front pitch adjustment of the front leveling assembly;', 'a front axle pivotally coupled to the front carrier arm to facilitate a front roll adjustment of the front ...

Leveling system for lift device

A lift device includes a chassis, a boom pivotally coupled to the chassis, a first leveling assembly pivotally coupled to a first end of the chassis, a second leveling assembly pivotally coupled to an opposing second end of the chassis, and a control system. The first leveling assembly includes a first pair of actuators positioned to facilitate a first pitch adjustment and a first roll adjustment of the first end of the chassis. The second leveling assembly includes a second pair of actuators positioned to facilitate a second pitch adjustment and a second roll adjustment of the opposing second end of the chassis. The control system is configured to (i) actively control the first pair of actuators and the second pair of actuators during a first mode of operation, and (ii) actively control the first pair of actuators and facilitate passive control of the second pair of actuators during a second mode of operation.

HEAVY VEHICLE LIFTING APPARATUS AND METHOD

A heavy vehicle lifting apparatus and a hydraulic lifting unit. Each lifting unit has a housing with a displaceable upper portion which has an application surface being engageable with a lifting point of the heavy vehicle. Two or more hydraulic actuators are disposed within the housing and linked with a common fixed structure. Each actuator has an extendable cylinder attached to the upper portion. The cylinders in operation collectively vertically displace the upper portion and the application surface between a first position wherein the application surface is disengaged from the lifting point, and a second position wherein the application surface engages the lifting point and the heavy vehicle is lifted from a ground surface. 1. A heavy vehicle lifting apparatus , comprising: a housing having a displaceable upper portion with an application surface being engageable with the lifting point; and', 'at least two hydraulic actuators disposed within the housing and linked with a common fixed structure, each actuator having an extendable cylinder attached to the upper portion, the cylinders in operation collectively vertically displacing the upper portion between a first position wherein the application surface is disengaged from the lifting point, and a second position wherein the application surface engages the lifting point and the heavy vehicle is lifted from a ground surface., 'a plurality of hydraulic lifting units each being positionable underneath a lifting point of the heavy vehicle and comprising2. The lifting apparatus of claim 1 , wherein the housing has a lower portion housing the at least two actuators claim 1 , the upper portion of the housing mounted about the lower portion and being displaceable relative thereto.3. The lifting apparatus of claim 2 , wherein the lower portion includes a casing and the common fixed structure includes a base plate assembly and an upper plate assembly claim 2 , the base plate assembly supporting a base of each actuator and ...

FLOOR JACK

Disclosed is a floor jack for use with a jack stand, the jack including (a) a base comprising two arms spaced apart to define a stand space between them; (b) a jack arm comprising a forked cradle comprising two spaced apart arms; and (c) a jack mechanism disposed within the base for elevating the jack pad. The base arms are configured to allow a jack stand to be positioned in the stand space, vertically aligned with the forked cradle. 2. The jack of wherein each base arm comprises a wheel or caster.3. The jack of wherein the jack mechanism comprises a hydraulic lifting mechanism.4. The jack of wherein the cradle is U-shaped.5. The jack of wherein the jack arm comprises a mounting member which supports the forked cradle.6. The jack of wherein the forked cradle is mounted directly over the mounting member and both are U-shaped.7. The jack of wherein the forked cradle is cantilevered from the mounting member.8. A method of lifting a vehicle using a floor jack which comprises (a) a base comprising two arms spaced apart to define a stand space between them; (b) a jack arm comprising a forked cradle having two spaced apart arms; and (c) a jack mechanism disposed within the base for elevating the jack arm and cradle; comprising the steps of:(a) positioning the base below a vehicle lift point and actuating the jack mechanism to lift the vehicle with the forked cradle supporting the vehicle lift point;(b) positioning a jack stand having a jack pad immediately below the vehicle lift point such that the jack pad is vertically aligned with the forked cradle and the vehicle lift point; and(c) lowering the vehicle such that the vehicle lift point rests on the jack pad which is positioned within the forked cradle. The present invention relates to a floor jack configured for use with a conventional jack stand.It is sometimes necessary to temporarily lift a vehicle for maintenance or repair purposes, such as tire changes, suspension repair, brake repair, oil changes, and the like. ...

Hand operated vehicle lifting apparatus

A hand operated vehicle lifting apparatus. The hand operated vehicle lifting apparatus preferably lifts a vehicle by engaging with the wheels of the vehicle. Preferably, the hand operated vehicle lifting apparatus comprises a wheel engagement portion and a hinge for storage.

IMPROVED JACK DEVICE AND SYSTEM

A lifting device that includes a central portion and first and second laterally extending lifting arms. Each arm extends away from opposite sides of the central portion and includes a lifting cradle disposed on a distal portion of the associated laterally extending lifting arm. Each laterally extending lifting arm and associated lifting cradle is operable to securely engage with a gear leg of a vehicle and lift when an upward force is received by the central portion. 158-. (canceled)59. A lifting device , comprising:a central portion;first and second extending lifting arms, each arm extending away from opposite sides of the central portion and comprising a lifting cradle disposed on a distal portion of the associated laterally extending lifting arm;wherein each extending lifting arm and associated lifting cradle is operable to securely engage with gear legs of a vehicle and lift the vehicle when an upward force is applied by the central portion through the lifting cradle to the gear legs.60. The device according to claim 59 , wherein the extending arms are removably attached with the central portion claim 59 , wherein a distance between each of the lifting cradles is adjustable.61. The device according to claim 60 , wherein the distance is adjustable by slidably translating one or both of the laterally extending arms along a corresponding arm receiver of the central portion between a plurality of fixed positions.62. The device according to claim 59 , wherein the extending arms are removably attached with the central portion claim 59 , wherein each extending arm is slidably inserted into a corresponding arm receiver of the central portion between a plurality of fixed positions.63. The device according to claim 59 , wherein the vehicle is an aircraft comprising landing gear with a plurality of wheel supported gear legs claim 59 , and wherein each cradle is operable to simultaneously lift the corresponding gear leg.64. The device according to claim 59 , wherein the ...

TIRE LIFTER

A tire lifter is provided having a horizontal frame in a vertical support, the horizontal frame providing for wheel movement of the tire lifter. A drive lift mechanism is positioned within the vertical upright of the frame and includes a screw drive that is used to raise and lower a pair of support arms which cradle a tire or a tire and wheel combination. Further, the support arms which cradle the tire can also be adjusted in a forward and rearward direction to allow for easier placement of a tire relative to an automobile. 1. A lifting apparatus for a tire mounted on a rim comprising:a frame having a horizontal base and a vertical upright;a plurality of wheels supported by the horizontal base;a lifting mechanism secured within an interior channel defined by the vertical upright, the lift mechanism adapted to selectively raise and lower a pair of support arms, the support arms adapted for engaging a tire and rim combination;wherein the support arms are laterally moveable through apertures defined by a horizontal support bar of the horizontal base, and at a perpendicular angle relative to the vertical upright, the support arm being further connected to a handle.2. The lifting apparatus according to claim 1 , further comprising an adjustable height vertical support bar claim 1 , adapted for engaging an upper surface of a tire mounted on a rim so as to provide a stabilizing force.3. The lifting apparatus according to wherein the adjustable vertical support bar may be rotated to position the support bar relative to a support bar.4. The lifting apparatus according to wherein the lifting mechanism can be actuated by use of a manual handle.5. The lifting apparatus according to wherein the lifting mechanism can be actuated by use of a electric motor.6. The lifting apparatus according to wherein the lifting mechanism is a screw drive.7. The lifting apparatus according to wherein the lifting mechanism can be actuated by use of a hydraulic cylinder.8. The lifting apparatus ...

TELESCOPING JACK FOR LIFTING LARGE CAPACITY TRUCKS

A jack, comprising: a top plate adapted to contact a load; an intermediate plate positioned below the top plate, the intermediate plate having a channel formed therein; a base plate positioned below the intermediate plate; a first pair of actuators coupled between the base plate and the intermediate plate, one of the first pair of actuators positioned on either side of the channel; and, a second pair of actuators coupled between the channel of the intermediate plate and the top plate; wherein the first and second pairs of actuators are operable to move the top plate and the intermediate plate between respective lowered positions and respective raised positions to thereby lower and raise the load. 1. A jack , comprising:a top plate adapted to contact a load;an intermediate plate positioned below the top plate, the intermediate plate having a channel formed therein;a base plate positioned below the intermediate plate;a first pair of actuators coupled between the base plate and the intermediate plate, one of the first pair of actuators positioned on either side of the channel; and,a second pair of actuators coupled between the channel of the intermediate plate and the top plate;wherein the first and second pairs of actuators are operable to move the top plate and the intermediate plate between respective lowered positions and respective raised positions to thereby lower and raise the load.2. The jack of claim 1 , further comprising a pair of telescoping linear guide columns coupled between the base plate claim 1 , intermediate plate claim 1 , and top plate claim 1 , one of the pair of telescoping linear guide columns positioned on either side of the first pair of actuators.3. The jack of claim 1 , wherein the first and second pairs of actuators are operable simultaneously.4. The jack of claim 1 , wherein the load is a truck.5. The jack of claim 1 , wherein the first and second pairs of actuators are first and second pairs of hydraulic cylinders claim 1 , respectively.6 ...

Method and System for Load Alleviation

A method and system for alleviating a load is provided. A support system is positioned at a nominal location with respect to an object. The support system comprises jacks and supports. Each of the supports is associated with one of the jacks. The object is positioned on the support system. The support system with the object is moved across a path. The height of each of the jacks is adjusted as the support system moves along the path to maintain a desired minimum load on each jack. Maintaining the desired minimum load prevents damage to the object. 1. A method for alleviating a load , the method comprising: jacks; and', 'supports, each associated with one of the jacks;, 'positioning a support system at a nominal location with respect to an object, wherein the support system comprisespositioning the object on the support system;moving the support system with the object across a path; andadjusting a height of each of the jacks as the support system moves along the path to maintain a desired load on each of the jacks, wherein maintaining the desired load prevents damage to the object.2. The method of claim 1 , wherein adjusting the height of each of the jacks comprises:maintaining a minimum load on each of the jacks.3. The method of claim 2 , wherein the jacks are hydraulic jacks and adjusting the height of each of the hydraulic jacks comprises:adjusting the height of a cylinder in each of the hydraulic jacks to maintain the minimum load on each of the hydraulic jacks.4. The method of claim 3 , wherein adjusting the height of each of the hydraulic jacks comprises:determining that a load placed on a hydraulic jack in the hydraulic jacks by the object is less than the minimum load for that hydraulic jack; andextending the height of the cylinder in the hydraulic jack until the minimum load is reached.5. The method of claim 4 , wherein adjusting the height of each of the hydraulic jacks comprises:determining that a load on the hydraulic jack exceeds the minimum load desired ...

Jack Stand with Dual Column Support

A jack stand includes a base having a jacking surface which receives a jack thereon, in which the jack has a main body and a lifting head which can be jacked up. Two support columns extend perpendicularly upward from the base parallel to and spaced apart from one another by a fixed lateral spacing to receive the jack therebetween. A jack body is slidably supported along the two columns and includes a jacking surface on a bottom side thereof so as to be arranged to operatively receive the jack between the two jacking surfaces of the jack body and the base respectively such that operation of the jack displaces the jack body relative to the base. A jack post, upon which an object to be jacked is supported, is slidably supported on the jack body to be adjustable in height independently of a height of the jack body. 1. A jack stand for use with a jack having a main body and a lifting head which can be jacked up relative to the main body , the jack stand comprising:a base arranged to be supported on a ground surface;two support columns extending perpendicularly upward from the base in fixed relation to one another and the base so as to be parallel to one another and spaced apart from one another by a fixed lateral spacing;a jack body supported on the two columns for sliding movement along the two columns;a jacking surface on the jack body laterally between the two columns, the jacking surface being parallel to and spaced directly above a corresponding jacking surface on the base laterally between the two columns so as to be arranged to operatively receive the jack between the two jacking surfaces of the jack body and the base respectively such that operation of the jack displaces the jack body relative to the base; andan upper surface on a top side of the jack body for supporting an object to be lifted thereon.2. The jack stand according to wherein the jack body includes two cavities formed therein in which each cavity mates with a respective one of the two columns for ...

TELESCOPING JACK FOR LIFTING LARGE CAPACITY TRUCKS

A jack, comprising: a top plate having at least one adapter block mounted thereon and adapted to contact a load; an intermediate plate; a base plate; a first pair of actuators coupled between the base and intermediate plates; and, a second pair of actuators coupled between respective lowered portions of the intermediate plate and the top plate; wherein one of the first pair of actuators is positioned on the base plate on either side of the respective lowered portions; wherein the actuators are operable to move the top and intermediate plates between respective lowered and raised positions to thereby lower and raise the load; and, wherein a top adapter plate of the at least one adapter block is operable to slide between first and second positions across the top plate as the load is raised and lowered to maintain alignment of the top, intermediate, and base plates below the load. 1. A jack , comprising:a top plate having at least one adapter block mounted thereon and adapted to contact a load;an intermediate plate positioned below the top plate;a base plate positioned below the intermediate plate;a first pair of actuators coupled between the base plate and the intermediate plate; and,a second pair of actuators coupled between respective lowered portions of the intermediate plate and the top plate;wherein one of the first pair of actuators is positioned on the base plate on either side of the respective lowered portions of the intermediate plate;wherein the first and second pairs of actuators are operable to move the top plate and the intermediate plate between respective lowered positions and respective raised positions to thereby lower and raise the load; and,wherein a top adapter plate of the at least one adapter block is operable to slide between first and second positions on the top plate as the load is raised and lowered to thereby maintain alignment of the top, intermediate, and base plates below the load.2. The jack of claim 1 , wherein the at least one adapter ...

LEVELING SYSTEM FOR LIFT DEVICE

A lift device includes a chassis having a first end and an opposing second end, a first actuator coupled to the first end, a second actuator coupled to the first end, a third actuator coupled to the opposing second end; and a fourth actuator coupled to the opposing second end. The first actuator and the second actuator are selectively engageable to facilitate providing active control of a first pitch adjustment and a first roll adjustment of the first end of the chassis. The third actuator and the fourth actuator are (i) selectively fluidly couplable to facilitate providing passive control of a second pitch adjustment and a second roll adjustment of the opposing second end of the chassis and (ii) selectively fluidly decouplable to facilitate providing active control of the second pitch adjustment and the second roll adjustment of the opposing second end of the chassis. 1. A lift device comprising:a chassis having a first end and an opposing second end;a first actuator coupled to the first end of the chassis;a second actuator coupled to the first end of the chassis;a third actuator coupled to the opposing second end of the chassis; anda fourth actuator coupled to the opposing second end of the chassis;wherein the first actuator and the second actuator are selectively engageable to facilitate providing active control of a first pitch adjustment and a first roll adjustment of the first end of the chassis; andwherein the third actuator and the fourth actuator are (i) selectively fluidly couplable to facilitate providing passive control of a second pitch adjustment and a second roll adjustment of the opposing second end of the chassis and (ii) selectively fluidly decouplable to facilitate providing active control of the second pitch adjustment and the second roll adjustment of the opposing second end of the chassis.2. The lift device of claim 1 , further comprising one or more valves positioned to facilitate selectively isolating the third actuator and the fourth ...

Pallet Jack Axle (Pin) Press

The present invention relates to a device for the removal of a pallet jack's load wheel pins. Where said invention is comprised of a hydraulic jack secured in a horizontal position within a frame assembly. A tooling adapter is fitted on the end of the piston rod so that the piston rod may push against the pallet jack's load wheel pin when the piston rod is extended. The frame assembly is slid underneath the forks of the pallet jack and the hydraulic jack's piston rod is aligned with the pallet jack load wheel pins that are to be removed. When the hydraulic jack is activated, the piston rod pushes against the pallet jack's load wheel pins pushing them out from the load wheel allowing the load wheel to be removed from the pallet jack's fork. Large extension springs are mounted on the underside of the frame assembly and are attached to piston rod to return the piston rod to the hydraulic jack once the load wheel pins are removed.

Lift system optical and rf combination remote control

A vehicle lift system includes a plurality of mobile lift columns each including a wireless communication system for sending and receiving wireless signals, at least one of the mobile lift columns including an optical receiver. A remote control unit having a wireless communication system capable of transmitting wireless control signals and the remote control unit having an optical transmitter. A control unit is associated with the plurality of lift columns for controlling operation of the plurality of lift columns. The control unit receiving control signals from the wireless communication system and the optical receiver and enabling operation of the mobile lift columns when both an optical signal transmitted by the remote control unit is received by the optical receiver and a wireless control signal transmitted by the remote control unit is received by the wireless communication system.

TRUNNION BLOCK ASSEMBLY

The present invention relates broadly to a floor jack and a multi-component trunnion assembly that transfers motion of a power unit to the lifting arm of the jack. The end block may include one or more trunnions that are coupled to the block. The trunnions may engage and be coupled to one or more connection plates coupled to the lifting arm of the jack. A hydraulic power unit, including at least one piston may be coupled to the trunnion block for lifting the lifting arm of the jack. 1. A trunnion block assembly for transferring motion from a jack power unit to a lifting arm , the assembly comprising:a block including first and second trunnion recesses and a piston recess, the piston recess is adapted to receive at least a portion of a piston;first and second trunnions adapted to respectively engage the first and second trunnion recesses.2. The trunnion block assembly of claim 1 , wherein each of the first and second trunnions includes a fastener recess claim 1 , and the first and second trunnions are coupled to the trunnion block by respective fasteners passing through the trunnion block and the respective fastener recesses.3. The trunnion block assembly of claim 2 , wherein the fastener is a threaded bolt.4. The trunnion block assembly of claim 2 , wherein the fastener is a cotter pin.5. The trunnion block assembly of claim 4 , wherein the cotter pin is coupled to the trunnion block by a retaining pin.6. The trunnion block assembly of claim 1 , wherein the first and second trunnions include threaded surfaces claim 1 , and the first and second trunnion recesses define threaded interior surfaces adapted to respectively receive the threaded surface of the first and second trunnions claim 1 , respectively.7. The trunnion block assembly of claim 1 , wherein the piston includes a hydraulic cylinder.8. A trunnion block assembly for a floor jack including a frame claim 1 , a lifting arm claim 1 , and a handle pivotally coupled to the frame claim 1 , the trunnion bock ...

FLOOR JACK LOCKOUT ASSEMBLY

A floor jack locking assembly is presented. The locking assembly may include a locking pin used to mechanically lock out the jack at a specified lift height. The locking assembly may avoid the hydraulic lift cylinder being the only stabilizing component of the jack when supporting a significant load. The locking pin may be coupled to lifting link arms, avoiding the need to have the locking pin inserted into or through the lifting arm of the jack. 1. A floor jack , comprising:a frame including lock pin holes;a lifting arm pivotally coupled to the frame;a lifting mechanism coupled to the lifting arm; a lifting link arm coupled to the lifting mechanism; and', 'a locking pin adapted to couple the lifting link arm and the frame through at least one of the lock pin holes; and, 'a locking assembly includinga handle pivotally coupled to the lifting mechanism.2. The floor jack of claim 1 , wherein the lifting link arm includes a pin lifting arm hole adapted to receive the locking pin.3. The floor jack of claim 1 , further comprising first position indicators disposed on the frame.4. The floor jack of claim 3 , further comprising alignment indicators claim 3 , wherein each of the alignment indicators corresponds to one of the first position indicators.5. The floor jack of claim 4 , further comprising secondary position indicators disposed on the frame proximal to the lock pin holes claim 4 , wherein each of the secondary position indicators corresponds to one of the first position indicators.6. The floor jack of claim 1 , wherein the lock pin holes includes first claim 1 , second claim 1 , and third lock pin holes claim 1 , the first lock pin hole corresponding to a first locked position claim 1 , the second pin hole corresponding to a second locked position claim 1 , and the third lock pin hole corresponding to a third locked position.7. The floor jack of claim 6 , further comprisinga first set of position indicators disposed on the frame;a first set of alignment indicators ...

C-shape jack

A C-Shape Jack, an accessory pedestal structured and arranged to slide onto the existing saddle of a hydraulic floor jack, and converts that saddle into an arched, C-shape for supporting and lifting cylindrical objects, from axles and spindles to pipes. Easy to use and capable of supporting any load that the jack can handle, the C-Shape Jack would be used by mechanics as well as such construction-industry tradesmen as pipe-fitters, and household do-it-yourselfers.

Vehicle Jacking Assembly

A vehicle jacking assembly for lifting a vehicle for performing maintenance thereon includes a housing, which defines an interior space and which is can be positioned on a surface below a frame of a vehicle. A pneumatic bag is engaged to the housing and is selectively extensible therefrom through an aperture positioned in a top of the housing. A compressor and a battery are engaged to the housing and positioned in the interior space. The compressor is operationally engaged to the pneumatic bag. The battery is operationally engaged to the compressor. The battery is positioned to selectively power the compressor to inflate the pneumatic bag so that the pneumatic bag extends from the housing and contacts the frame of the vehicle to lift a corner or side of the vehicle. 1. A vehicle jacking assembly comprising:a housing defining an interior space and being configured for positioning on a surface below a frame of a vehicle, the housing having an aperture positioned in a top thereof;a pneumatic bag engaged to the housing and being selectively extensible therefrom through the aperture;a compressor engaged to the housing and positioned in the interior space, the compressor being operationally engaged to the pneumatic bag; anda battery engaged to the housing and positioned in the interior space, the battery being operationally engaged to the compressor, such that the battery is positioned for selectively powering the compressor for inflating the pneumatic bag, such that the pneumatic bag extends from the housing and contacts the frame of the vehicle, wherein the pneumatic bag is configured for lifting a corner or side of the vehicle.2. The vehicle jacking assembly of claim 1 , further including:a set of wheels engaged to a bottom of the housing, each wheel being positioned proximate to a respective corner of the housing, wherein the wheels are configured for locomoting the housing on a surface; anda handle engaged to a back of the housing, the handle comprising a plurality ...

VEHICLE TRANSPORTING DEVICE

A vehicle transporting device includes a bogie frame, a total of eight arms, upper surface plates, and arm driving units. Two arms in a longitudinal direction of the bogie frame of the total of eight arms are paired with each other to support tires. The upper surface plates extend in a width direction of the bogie frame to support the arms. At least six arm driving units are provided on the bogie frame to individually drive at least six arms. Base end portions of pivoting arms are pivotably supported by the upper surface plates in outer peripheral regions of the upper surface plates. Tip portions of the pivoting arms are located outside the upper surface plates. One ends of the arm driving units are attached partway through the pivoting arms. The other ends of the arm driving units are located outside the bogie frame. 1. A vehicle transporting device that transports a four-wheeled vehicle , the vehicle transporting device comprising:a bogie frame inserted into a space below a vehicle body from front or rear of the four-wheeled vehicle;a total of eight arms each provided in a direction orthogonal to a longitudinal direction of the bogie frame, two arms in the longitudinal direction of the eight arms being paired with each other to support each tire of the four-wheeled vehicle;upper surface plates extending in the orthogonal direction on an upper surface of the bogie frame to support the arms; andat least six arm driving units provided on the bogie frame to individually switch each state of at least six pivoting arms included in the arms between a tire support state and a tire release state, wherein:each base end portion of the at least six pivoting arms is pivotably supported by each of the upper surface plates in an outer peripheral region of each of the upper surface plates in the orthogonal direction;each tip portion of the at least six pivoting arms is located on an outside of each of the upper surface plates;each acting point on which each of the at least six ...

Leveling system for lift device

A lift device includes a chassis, a boom pivotally coupled to the chassis, a first leveling assembly pivotally coupled to a first end of the chassis, a second leveling assembly pivotally coupled to an opposing second end of the chassis, and a control system. The first leveling assembly includes a first pair of actuators positioned to facilitate a first pitch adjustment and a first roll adjustment of the first end of the chassis. The second leveling assembly includes a second pair of actuators positioned to facilitate a second pitch adjustment and a second roll adjustment of the opposing second end of the chassis. The control system is configured to (i) actively control the first pair of actuators and the second pair of actuators during a first mode of operation, and (ii) actively control the first pair of actuators and facilitate passive control of the second pair of actuators during a second mode of operation.

Leveling system for lift device

A lift device includes a chassis having a first end and an opposing second end, a first actuator coupled to the first end of the chassis, a second actuator coupled to the first end of the chassis, a third actuator coupled to the opposing second end of the chassis, a fourth actuator coupled to the opposing second end of the chassis, and a control system. The control system is configured to fluidly couple at least two of the first actuator, the second actuator, the third actuator, and the fourth actuator, and fluidly decouple and actively control the at least two of the first actuator, the second actuator, the third actuator, and the fourth actuator.

Elevating device, equilibrium system for elevating device, vehicle and its control method

Tyre lifter

The tire lift is started. A lower plate; An upper plate positioned above the lower plate; A pair of scissors modules coupled to both sides of the lower plate in an X-shape to elevate or lower the upper plate from the lower plate; A support plate coupled between the pair of scissors modules, the support plate having a top protrusion protruding downward from the one side toward the other side; A lower stone plate coupled to the lower plate and having a curved surface extending from one side to the other side and projecting upward; A support bar positioned between the lower projection and the upper projection; A power module including a piston coupled to the support bar and a cylinder for pushing the piston pneumatically; And a support module coupled to at least one of the pair of scissors modules and supporting a load of the upper plate when the scissors module raises the upper plate.

Unit capable of Loading and unloading a container and method thereof

본 발명에 의하면, 화차의 적재면에 구비되어 화차로부터 트레일러에 컨테이너를 로딩/언로딩시키거나 트레일러로부터 화차에 컨테이너를 로딩/언로딩시키기 위하여 컨테이너를 로딩한 상태로 화차와 트레일러 사이를 이동하는 복수개의 수평이송부; 상기 복수개의 수평이송부에 의한 컨테이너 이동을 위하여 화차의 위치를 기준으로 트레일러의 상대적인 위치를 판단하여 상호간 정위치 정렬을 가능하게 하는 차량정위치판단부; 상기 복수개의 수평이송부의 구동수단들에 유압을 공급하는 유압공급부를 제어하여 상기 복수개의 수평이송부의 구동수단들의 구동을 제어하는 유압구동부; 상기 복수개의 수평이송부의 수평 주행을 위해 구동되는 구동수단의 동작을 감지하여 정상적인 동작 여부를 판단하고 상기 복수개의 수평이송부가 동일한 위치에서 구동되도록 상기 복수개의 수평이송부들의 정위치를 판단하는 수평주행판단부; 상기 복수개의 수평이송부의 수직 구동을 위해 구동되는 구동수단의 동작을 감지하여 정상적인 동작 여부를 판단하는 수직구동판단부; 및 상기 구성부들에 전기적으로 접속되어 상기 구성부들의 동작을 제어하는 제어부를 포함하는 컨테이너의 로딩/언로딩 장치가 제공된다. According to the present invention, a plurality of moving parts between the wagon and the trailer with a container loaded to load / unload a container from the wagon to a trailer from a wagon or to load / unload a container from the wagon to a trailer Horizontal transfer parts; A vehicle position determination unit for determining the relative position of the trailer on the basis of the position of the wagon for moving the containers by the plurality of horizontal transfer units and allowing the vehicle to be aligned with each other; A hydraulic drive unit controlling a driving of the driving means of the plurality of horizontal transfer units by controlling a hydraulic supply unit supplying hydraulic pressure to the driving means of the plurality of horizontal transfer units; Determining the normal operation by detecting the operation of the driving means driven for the horizontal running of the plurality of horizontal transfer unit and determining the correct position of the plurality of horizontal transfer unit to be driven in the same position Horizontal driving judgment; A vertical driving determining unit which detects an operation of a driving means driven for vertical driving of the plurality of horizontal transfer units and determines whether the driving unit is in normal operation; And a controller electrically connected to the components to control the operation of the components. DMT, ...

Mobile unit for replacing wheelsets or undercarriage equipment and method for use thereof

FIELD: railways. SUBSTANCE: group of inventions relates to the field of railway transport maintenance, in particular, to mobile units for replacing wheelsets or undercarriage equipment, as well as to methods for using such units. The unit comprises the main frame and a mechanism for movement thereof. An elevating table, an elevating mechanism therefor, as well as a set for controlling the mechanism are installed on the frame. A rotary platform is installed on the elevating table, configured to rotate in the horizontal plane and move transversely relative to the unit. The unit is placed under the replaced wheelset. The rotary platform is rotated and secured in the transverse direction. The elevating table is raised, and the wheelset is installed on the platform. The elevating table is lowered. The replaced wheelset is removed from the rotary platform. A new wheelset is installed on the platform, and the elevating table is raised to install the wheelset in the carriage. EFFECT: time for replacing a wheelset is reduced. 25 cl, 12 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 759 034 C1 (51) МПК B61K 5/00 (2006.01) B66F 5/04 (2006.01) B66F 7/08 (2006.01) B60S 5/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B61K 5/00 (2021.05); B66F 5/04 (2021.05); B66F 7/0666 (2021.05); B66F 7/08 (2021.05); B60S 5/00 (2021.05) (21)(22) Заявка: 2021102591, 04.02.2021 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Общество с ограниченной ответственностью "РэилМатик" (ООО "РэилМатик") (RU) Дата регистрации: 09.11.2021 (56) Список документов, цитированных в отчете о поиске: CN 205998941 U, 08.03.2017. WO 1990/000486 A1, 25.01.1990. DE 4204347 A1, 19.08.1993. RU 120057 U1, 10.09.2012. (45) Опубликовано: 09.11.2021 Бюл. № 31 2 7 5 9 0 3 4 R U (54) МОБИЛЬНАЯ УСТАНОВКА ДЛЯ ЗАМЕНЫ КОЛЕСНЫХ ПАР ИЛИ ПОДВАГОННОГО ОБОРУДОВАНИЯ И СПОСОБ ЕЕ ИСПОЛЬЗОВАНИЯ (57) Реферат: Группа изобретений относится к области ...

Apparatus for transferring, attaching and detaching air conditioner of train

The present invention relates to a transferring device and, more specifically, a device for detaching and transferring an air conditioner of a train, capable of detaching and transferring the air conditioner installed in the lower part of the train from the train to be repaired or changed. The device for detaching and transferring the air conditioner of the train according to the present invention comprises a transferring unit, a lift unit, a roller unit, and a support unit. The transferring unit transfers the air conditioner by driving wheels to be moved in all directions. The lift unit is installed on the upper surface of the transferring unit in an X-link shape and moves the air conditioner in upward and downward directions to detach the air conditioner from the train. The roller unit in which a plurality of rollers is installed on the upper part of the lift unit in parallel moves the air conditioner in left and right directions. The support unit is moved in the upward and downward directions between rollers and supports the air conditioner to be separated from the roller unit when the air conditioner is fixed.

Apparatus for moving road wheels of a track-laying vehicle

본 고안은 로드 휠 다수 개를 한꺼번에 이동시킬 수 있을 뿐만 아니라, 이동시에 작업자에게 무리를 주지 않고 작업할 수 있는 궤도차량 로드 휠 이동장치에 관한 것으로, 이동바퀴(12) 및 손잡이(15)를 갖는 본체부(20)와, 본체부(20)의 상면에 일체로 형성되며, 하단측에는 푸시부(7)를 가지며, 푸시부(7)의 펌핑 작동에 의해 상승되는 상승부(10)를 갖는 자키부(6)와, 상승부(10)와 일체로 연동되게 결합되며, 하단부에는 간격 조절 홀(4a),(4b),(4c),,을 갖는 간격 조정 프레임(11)이 형성된 기댐판(18)과, 간격 조정 프레임(11)에 결합되도록 고정홀(3)이 형성되며, 서로 일정간격을 두고 나란하게 뻗어지는 형태의 한 쌍의 걸침대(2a),(2b)로 구성된 특징이 있다. The present invention not only can move a plurality of road wheels at once, but also relates to a track vehicle road wheel moving device that can work without straining the operator at the time of movement, having a wheel 12 and a handle 15 Jockey having a main body 20, and integrally formed on the upper surface of the main body 20, having a push portion 7 at the lower end side, and having a raised portion 10 raised by the pumping operation of the push portion 7 The damping plate (6), which is integrally coupled with the rising part (10), and has an interval adjusting frame (11) having gap adjusting holes (4a), (4b), (4c), and a lower end portion ( 18) and a fixing hole 3 is formed to be coupled to the interval adjusting frame 11, and has a feature consisting of a pair of bed beds (2a, 2b) extending in parallel with a predetermined distance from each other. .

Freight car capable of unloading and loading a container

본 발명에 의하면, 열차차량에 복수개의 본체가 탈부착 가능하게 연결되어 철로를 운행하며 컨테이너가 로딩/언로딩되는 적재면이 본체의 길이방향으로 형성된 화차에 있어서, 컨테이너가 로딩/언로딩되는 화차의 적재면에 구비되어 화차와 트레일러 사이를 왕복이동 하는 수평주행수단; 상기 수평주행수단의 일측에 구비되어 승강 동작하는 수직구동수단; 및 상기 수직구동수단의 상측에 구비되어 승강 동작되며 컨테이너의 하부를 지지하는 지지수단으로 구성된 수평이송부와, 상기 컨테이너가 적재되는 적재면에 상기 수평이송부가 컨테이너를 로딩한 상태에서 안정적으로 이동하도록 하는 휠가이드부를 포함하는 컨테이너의 로딩/언로딩이 가능한 화차가 제공된다. DMT, 컨테이너, 트레일러, 화차, 이동, 수평, 수송, 화물, 트럭

Portable vehicle lift

A portable vehicle lift employed by lifting at a wheel assembly, which lift comprises a base, a stand extending vertically upward from said base, a carriage being mounted for vertical movement on a stand, a carriage further comprising a pair of arms with forwardly protruding cradle members at the bottom of arms, an engagement pad on the front of the carriage to bias the lift against the rim of the wheel assembly, and a lift mechanism for extending the combined length of the stand and the carriage. The arms may be adjustable in width to function with a variety of wheel assembly sizes. The inclusion of the engagement pad on the carriage provides contact with the wheel assembly, thereby biasing the lifting device with the tilting force due to leverage forces of the weight of the wheel assembly on the outwardly projecting cradle members. Biasing the lifting device with the engagement pad provides stability on a compact base, such that the base need not extend more than a limited distance outwardly from the front of the stand.

A kind of auto repair lifting device

本发明公开了一种汽车维修用升降设备，涉及汽车维修技术领域。本发明包括气泵和升降机构；气泵输气口的一端固定连接有进气管；进气管周侧面固定连接有气阀；升降机构包括支撑座；支撑座周侧面开有贯穿孔；支撑座内壁开有导槽；支撑底座一底面固定连接有旋转平台；旋转平台与导槽滑动连接；旋转平台一表面固定连接有旋转座；旋转座一表面固定连接有若干伸缩杆；伸缩杆远离旋转座的一端固定连接有托板；托板一表面固定连接有气囊；气囊远离托板的一端面与旋转座固定连接。本发明通过对该汽车维修用升降设备的整体设计，解决了现有的汽车维修设备过于厚重，结构不够轻巧，收纳后占用面积大的问题。

Automobile maintenance lift

본 발명은 자동차용 리프트에 관한 것으로, 자동차를 리프트가 위치된 장소로 이동하여 작업하지 않고, 리프트를 자동차가 위치한 장소로 이동시켜 간단히 리프팅 한 후 바퀴 교환 등의 정비 작업을 할 수 있도록 하는 자동차 정비용 리프트에 관한 것이다. 본 발명은 사각의 베이스 프레임에 X자형 인양바로 승하강 되는 사각의 인양 프레임을 설치하되 상기 인양 프레임은 한 쌍의 인양 실린더로 인양바를 펼치거나 접어서 승하강이 이루어지고, 상기 베이스 프레임의 전후방에는 회동축을 설치하되 상기 회동축의 전후방 측면으로는 회전바퀴와 고정바퀴를 설치하고, 상기 회동축은 베이스 프레임의 중앙에 설치된 바퀴 실린더에 회동링크를 결합시켜 전후로 배치된 체인을 당기게 하되 상기 체인의 선단은 회동축의 형성된 돌기에 걸어주어 체인을 당기면 회동축이 하강하면서 회전바퀴와 고정바퀴로 베이스 프레임을 들어주게 하고, 상기 한 쌍의 인양 실린더는 인양바를 연결하는 연결바에 L자형 회동 브라켓으로 결합되어 인양 실린더로 인양바를 펼치거나 접어주게 하고, 상기 회동 브라켓을 양쪽으로 연결하는 회동봉에는 잠금장치를 설치하는 한편 인양 실린더에도 일정 간격의 래칫바를 설치하고, 상기 잠금장치의 안전레버로 당겨지는 와이어에 의해 들려져 스톱바와 래칫바가 분리되는 한편 안전레버를 당기지 않으면 스톱바와 래칫바가 맞물려 인양 프레임이 하강되지 않게 하고, 상기 인양 프레임의 모서리 외측에는 자동차를 받치는 패드가 끼워진 회전암을 회동되게 설치하고, 상기 베이스 프레임에는 배터리 전원을 이용하는 모터를 설치하는 한편 인양 프레임의 승,하강을 조작하는 한편 안전레버가 구비된 리모콘을 구비하고, 상기 베이스 프레임의 전방 중앙에는 견인대가 끼워지는 견인고리를 설치함으로써 이루어진다.

Wheel lift device

A wheel lift device for raising and supporting a wheeled vehicle such as an automobile, by engagement with a vehicle wheel thereof includes a lower support frame, casters, a carriage for engagement with the vehicle wheel, support struts connecting the carriage to the support frame and maintaining the carriage substantially parallel to a floor, and a mechanism for raising and lowering the carriage with respect to the support frame. The support frame and carriage engage the wheel by approaching the wheel along its path of roll, i.e. from a front or rear end of the vehicle. During this engagement, portions of the wheel lift device extend parallel to and on opposite sides of the wheel to lift the wheel and vehicle from a position where the vehicle is standing on a floor. A vehicle supported by the subject wheel lift devices in engagement with each wheel is readily adjusted for wheel alignment.

DEVICE LIFTING MOWER ASSISTED BY A VERIN MOUNTED OUTSIDE

Patent FR1593386A

DEVICE LIFTING MOWER ASSISTED BY A VERIN MOUNTED OUTSIDE

L'invention concerne un dispositif de levage et/ou de basculement (10) d'un engin de tonte d'herbe, notamment une tondeuse autoportée (11), comprenant un élément de châssis fixe (12), destiné à reposer sur le sol, et un élément de châssis (14) apte à recevoir au moins une roue dudit engin, mobile autour d'un axe (13) porté par ledit élément de châssis fixe, entre une position de rangement dans lequel ledit élément de châssis mobile (14) s'étend sensiblement dans le plan formé par ledit élément de châssis fixe (12), et au moins une position relevée dans lequel ledit élément de châssis mobile (14) est écarté dudit élément de châssis fixe (12). Selon l'invention, un tel dispositif comprend un vérin (24), présentant un corps (241) solidaire dudit élément de châssis fixe (12) et une tige (242) mobile par rapport audit corps, solidaire dudit élément de châssis mobile (14), monté de sorte à s'étendre sensiblement à l'extérieur de la zone (15) délimitée par lesdits éléments de châssis fixe (12) et mobile (14) dans ladite position relevée. The invention relates to a lifting and / or tilting device (10) for a lawn mower, in particular a riding mower (11), comprising a stationary frame element (12) intended to rest on the ground. , and a frame member (14) adapted to receive at least one wheel of said machine, movable about an axis (13) carried by said stationary frame member, between a storage position in which said movable frame member (14) ) extends substantially in the plane formed by said fixed frame member (12), and at least one raised position in which said movable frame member (14) is spaced from said fixed frame member (12). According to the invention, such a device comprises a jack (24), having a body (241) integral with said fixed frame member (12) and a rod (242) movable relative to said body, integral with said movable frame member (14). ), mounted so as to extend substantially outside the zone (15) delimited by said stationary frame ...

HYDRAULIC LIFT DEVICE WITH ADJUSTABLE WIDTH

L'invention concerne un dispositif de levage (101) d'une tondeuse comprenant un bras de levage (9) mobile autour d'un axe sensiblement horizontal (91) par rapport à un élément de châssis fixe (7) entre une position de rangement dans lequel ledit bras de levage (9) s'étend sensiblement dans le plan formé par ledit élément de châssis fixe (7), et au moins une position relevée dans lequel ledit bras de levage (9) est écarté dudit élément de châssis (7), ledit bras de levage (9) étant actionné par un vérin hydraulique (8) solidaire dudit châssis fixe (7) et portant un plateau amovible (103) apte à recevoir des roues d'un même essieu de ladite tondeuse, comprenant un premier support de roue (1) s'étendant d'un côté dudit bras de levage et un deuxième support de roue (4) s'étendant de l'autre côté dudit bras de levage Selon l'invention, lesdits supports de roue (1;4) sont montés coulissants l'un par rapport à l'autre de façon à pouvoir ajuster l'écartement entre lesdits supports, et ledit dispositif de levage (9) présente des moyens de verrouillage dudit premier support (1) avec ledit deuxième support (4) et ledit bras de levage (9). The invention relates to a lifting device (101) for a mower comprising a lifting arm (9) movable about a substantially horizontal axis (91) relative to a stationary frame element (7) between a storage position wherein said lifting arm (9) extends substantially in the plane formed by said fixed frame member (7), and at least one raised position wherein said lifting arm (9) is spaced from said frame member (7). ), said lifting arm (9) being actuated by a hydraulic cylinder (8) integral with said fixed frame (7) and carrying a removable plate (103) adapted to receive wheels of the same axle of said mower, comprising a first wheel support (1) extending from one side of said lift arm and a second wheel support (4) extending from the other side of said lift arm. According to the invention, said ...

Jack stand with dual column support

A jack stand includes a base having a jacking surface which receives a jack thereon, in which the jack has a main body and a lifting head which can be jacked up. Two support columns extend perpendicularly upward from the base parallel to and spaced apart from one another by a fixed lateral spacing to receive the jack therebetween. A jack body is slidably supported along the two columns and includes a jacking surface on a bottom side thereof so as to be arranged to operatively receive the jack between the two jacking surfaces of the jack body and the base respectively such that operation of the jack displaces the jack body relative to the base. A jack post, upon which an object to be jacked is supported, is slidably supported on the jack body to be adjustable in height independently of a height of the jack body.

Improvements relating to transportable lifting devices and in particular to devices for lifting cars and trucks