EP2414271B1 - Dispositif de levage, notamment dispositif de levage mobile - Google Patents

Dispositif de levage, notamment dispositif de levage mobile Download PDF

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Publication number
EP2414271B1
EP2414271B1 EP10712349.9A EP10712349A EP2414271B1 EP 2414271 B1 EP2414271 B1 EP 2414271B1 EP 10712349 A EP10712349 A EP 10712349A EP 2414271 B1 EP2414271 B1 EP 2414271B1
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EP
European Patent Office
Prior art keywords
carrier
lifting
lifting column
lifting device
column
Prior art date
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Active
Application number
EP10712349.9A
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German (de)
English (en)
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EP2414271A1 (fr
Inventor
Gerhard Finkbeiner
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Individual
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Individual
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/46—Combinations of several jacks with means for interrelating lifting or lowering movements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars
    • B66F7/04—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars hydraulically or pneumatically operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/247—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated pneumatically actuated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts

Definitions

  • the invention relates to a lifting device, in particular mobile lifting device, for lifting loads, vehicles or the like.
  • a lifting device which is also referred to as a single column stage.
  • Such a lifting device comprises a base frame with a lifting column arranged thereon, in which a carrier with a load receiving means arranged thereon is guided movable up and down.
  • a lifting unit for lifting and lowering a lifting unit is provided, which comprises at least one controller and a hydraulic cylinder to move the load-receiving means up and down.
  • the carrier is guided by roller guides, which engage in lateral recesses of the lifting column, movable up and down.
  • CA 2 524 462 A1 From the CA 2 524 462 A1 is a single column lifting device with a lifting column along which a load pick up and down is movable.
  • This load bearing is guided by means of a holding section along the lifting column, wherein on the holding portion of the load receiving opposite a winch is attached.
  • a deflection roller At the upper end of the lifting column, a deflection roller is provided, so that via a cable by means of the winch, the load bearing is guided up and down movable.
  • both of the aforementioned lifting devices have the disadvantage that open guides are provided and the drive units are arranged on the outside.
  • these lifts are only limited load capacity.
  • the invention is therefore an object of the invention to provide a lifting device, which allows a simple structural design with a high rigidity, in particular using a few components.
  • a preferred embodiment of the invention provides that at least one lower guide element is provided at a lower end of the carrier or on the load receiving means, which is supported on the lifting column and can be moved with the carrier during a lifting movement and at the upper or near the upper end of the lifting column at least one upper guide element is mounted, which is fixed in position during the lifting movement to the movable up and down carrier and supports the carrier.
  • At least one lower guide element provided on the load receiving means or arranged outside the lifting column on the carrier engages on at least one guide surface facing the load bearing on the lifting column.
  • This alternative embodiment can be provided when a particularly compact design of the lifting column is required, so that the at least one lower guide element is to be moved outside the lifting column.
  • a further preferred embodiment of the alternative embodiment of the invention provides that the at least one positionally fixed at the upper end of the lifting column upper guide element is attached directly to the lifting column, for example on the side walls and / or the rear wall of the lifting column.
  • a further preferred embodiment of the invention provides that a wear-resistant material for forming the guide surface than in the head region of the lifting column is provided along a movement range of the carrier within which engages the at least one lower guide element on at least one guide surface of the lifting column. Due to the separate arrangement of the at least one lower guide element on the carrier and the at least one upper guide element on the lifting column, an upper region, which is determined by the minimum distance between the respective guide elements in an upper stroke end position, be formed from a less wear-resistant material than this in lifting devices according to the prior art is the case. As a result, a cost saving can be achieved.
  • a further preferred embodiment of the invention provides that guide elements are provided only on the carrier, which are supported on the lifting column.
  • two or more opposing guide elements can be arranged on an inner wall portion of the carrier, which are movable along the lifting column and absorb the forces occurring when lifting and lowering a load.
  • these guide elements are provided exclusively on the lifting column, so that the carrier along these arranged on the lifting column guide elements is movable.
  • guide elements both sliding elements and support or rollers or the like may be provided. When using running or support rollers, these have a constant distance from each other and are fixedly arranged on the carrier or the sleeve. When using sliding elements, these may extend partially or completely along the support or the lifting column.
  • FIG. 1 is a perspective view of a lifting device 11 is shown, which is preferably suitable for mobile use.
  • Lifting devices 11 are also referred to as single-column lifting devices 11.
  • the lifting device 11 has a base device 12, which according to the embodiment of the lifting device 11 is designed as a mobile lifting device 11, and preferably comprises a chassis or steering gear.
  • the base means 12 may be formed as a support plate or mounting plate, which fixes the lifting device 11 to the floor of a workshop, or in a mobile or stationary workspace.
  • a common carrier plate or two separate carrier plates may be provided for their attachment to the substrate on a stationary two-column lifting device.
  • a lifting column 14 is provided at the base device 12.
  • the guide of the carrier 21 in the lifting column 14 via at least one arranged on the carrier 21 upper guide member 41 and at least one positionally fixed to the lifting column 14 arranged lower guide element 43.
  • the upper guide member 41 is fixed to the lifting column 14, and the lower Guide member 43 passes through a lifting movement in analogy to the travel distance or lifting movement of the carrier 21.
  • a pair of guide elements 41 in particular rollers, arranged, each engaging with guide surfaces 42, wherein the guide surfaces 42 through the Rear wall 31 or by separately patch guide surfaces 42 or as machined or in particular hardened guide surfaces 42 are formed on the rear wall 31 or attached thereto.
  • the arrangement of the upper guide elements 41 on the carrier 21 is shown in the schematic sectional view FIG. 4 out.
  • a pair of guide elements 41 is also preferably provided, which may either be attached directly to the side walls 32 or these according to an advantageous embodiment according to FIG. 3 are attached to an assembly 45.
  • F is according to a load pickup FIG. 4 caused by the load receiving means 22 causes the lower guide members 43 forcibly on the rear wall 21 and the guide surfaces 42 arranged thereon according to the force F 2 attack and engage the guide surfaces 28 of the carrier 21 on the upper guide member 41 according to the force F 3 .
  • FIG. 7 is a perspective view of a two-column lifting device 61 shown, which consists of two individual lifting devices 11 according to FIG. 1 consists.
  • These two lifting devices 11 can each be provided separately on a base device 12 or a carrier plate. Alternatively, a common mounting or mounting plate 12 may be provided as the base device.
  • This embodiment has the advantage that, when receiving the counterforce F 3, an independent centering of the carrier 21 to the upper guide elements 41 takes place.
  • these upper guide elements 41 are formed as sliding elements. Alternatively, however, rollers can be used.
  • FIGS. 10a, b and c is another alternative embodiment to the FIGS. 9a, b and c shown.
  • This embodiment differs from the effect that the central recess 46 is square or rectangular and the upper guide elements 41 are instead of at an obtuse or right angle to each other in a common axis.
  • the profile of the carrier 21 or its cross-sectional geometry can be square or rectangular, whereas the carrier 21 according to FIGS FIGS. 9a, b and c
  • the carrier 21 according to FIGS. 9a, b and c is designed as a pentagon profile in order to arrange the guide surfaces 28 at an obtuse or right angle to each other.
  • the upper guide elements 41 are designed as sliding elements and the lower guide elements 43 as rollers. Such an arrangement can also be formed reversed.
  • the mixture of rollers and plain bearings can be made application-specific.
  • both for the lifting column 14 and for the carrier 21 closed cross sections are created, which allow a high power consumption.
  • the drive spindle or the lifting cylinder is arranged within the carrier 21.
  • the profile geometry for the lifting column 14 and the carrier 21 can be varied.
  • the carrier 21 receives the controller 17 and the hydraulic unit 20 and preferably accumulators 63 and is movable up and down. As a result, the structure by the entrainment of the controller 17, the hydraulic unit 20th and the accumulators 63 on the carrier 21 and the associated wiring and laying of possibly hydraulic lines simplify.
  • FIG. 11d is an enlarged half-section of the alternative embodiment of the lifting device 11 according to the FIGS. 11a to c shown.
  • a lifting cylinder 19 is arranged as a drive element. This is thus not accessible and protected from the outside.
  • this embodiment has the advantage that the upper guide member 41 and the lower guide member 43 are also always inside and thus protected.
  • FIG. 11c In addition, a spacer 67 for receiving the drive element 19 is shown. This spacer 67 is screwed before the cylinder mounting on the free end of the piston rod or attached thereto. Subsequently, the drive element 19 is fixed in the carrier 21. Subsequently, the carrier 21 is slipped over the lifting column 14, wherein the spacer 67 is inserted into the lifting column 14. As a result, an independent arrangement and positioning of the free piston end of the lifting cylinder in the lifting column 14 take place.
  • the spacer 67 is preferably clover-shaped or four finger-shaped or star-shaped, in particular three-star-shaped, so that each blade end or finger can be supported in a corner of the preferably square or rectangular shaped lifting column 14, wherein the engaging fingers have a curve to a welded Lift column 14 to leave the corner slightly.
  • An analogous embodiment also applies to a drive spindle or the like instead of a lifting cylinder.
  • FIG. 12c is an alternative embodiment to FIG. 12b shown, in this embodiment, the self-centering guide surfaces are not provided on the rear wall of the lifting column, but to the load receiving 22 facing.
  • FIG. 12d Another alternative embodiment to the above FIGS. 11a to d and 12a to c is in FIG. 12d shown.
  • the lifting column 14 has a cross-sectional geometry as the carrier 21 in the embodiment according to the FIGS. 1 to 6 on.
  • the carrier 21 has a circumference which completely surrounds the lifting column 14.
  • the upper and lower guide elements 41, 43 are respectively provided on side walls of the carrier 21, so that they engage the guide surfaces 28 of the profiled lifting column 14. These can be fixed by fasteners to the carrier 21.
  • the configuration of the profile of the lifting column 14 within the carrier 21 is only an example. In addition, more diverse trained, even open, profiles may be provided for the lifting column.
  • the one end of the leg of the locking element 74 which is mounted within a housing 77 of the locking device 71 may be formed narrower than the other leg which engages the thrust bearing 82 and receives an adhesive element 78, which is attracted by the drive means 72 for unlocking.
  • the second leg of the locking element 74 is disposed between the carrier 21 and the lifting column 14 and engages in a locking position in a recess 81 of an abutment 82 a.
  • the load acting from above on the carrier 21 is transmitted via the recess on the carrier 21 on the locking element 74 and derived via the legs thereof between the carrier 21 and the lifting column 14 on the recess 81 and via the anvil 82 in the lifting column 14.
  • the recess on the carrier 21 is preferably stiffened with a particular U-shaped stiffening element 84, wherein the U-shaped stiffening element 84 is formed open at the bottom and surrounds the recess on the carrier 21.
  • the anvil 82 is for example according to FIG. 13b from a perforated plate 86 with an anchoring element 87 arranged at the upper end, in particular a mushroom head, which is arranged in a suspension device 88 for receiving the load.
  • the suspension device 88 is firmly connected to the load transfer with the lifting column 14.
  • the anvil 82 is fixed in position via a detachable connection 91, in particular screw, only to the lifting column 14.
  • the anvil 82 extends from the upper end of the lifting column 14 to the lower End in which the load suspension is arranged in a home position or exception position.
  • the activation device 72 or a currentless connection of the holding magnet is deactivated, and the locking element 74 autonomously engages against the abutment 82 or into the recess 81.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Pinball Game Machines (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Types And Forms Of Lifts (AREA)

Claims (15)

  1. Dispositif de levage, notamment dispositif de levage mobile, destiné au levage de charges, véhicules ou choses similaires, avec une colonne de levage (14), avec un élément porteur (21) conduit à travers la colonne de levage (14) et sur lequel peut être disposé un dispositif porte-charge (22), avec une unité d'entraînement (18) activable par une commande (17) et qui fait monter et descendre l'élément porteur (21) par rapport à la colonne de levage (14), caractérisé en ce que l'élément porteur (21) est réalisé en forme de douille ou de cartouche et entoure au moins partiellement la colonne de levage (14) et en ce que l'élément d'entraînement (19) est disposé dans la colonne de levage (14), à l'intérieur de l'élément porteur (21).
  2. Dispositif de levage selon la revendication 1, caractérisé en ce que l'élément porteur (21) entoure la colonne de levage (14) lorsque le dispositif porte-charge (22) se trouve dans une position abaissée et en ce que de préférence la colonne de levage (14) présente un profil qui est notamment fermé.
  3. Dispositif de levage selon la revendication 1, caractérisé en ce qu'à une extrémité inférieure de l'élément porteur (21) ou sur le dispositif porte-charge (22) est prévu au moins un élément de guidage inférieur (43) qui s'appuie contre la colonne de levage (14) et qui peut, pendant un mouvement de course, être déplacé ensemble avec l'élément porteur (21) et en ce qu'à l'extrémité supérieure de la colonne de levage (14) ou à proximité de celle-ci est prévu au moins un élément de guidage supérieur (41) qui est, pendant le mouvement de course de l'élément porteur (21), disposé en position fixée sur la colonne de levage (14) et qui sert de support à l'élément porteur (21).
  4. Dispositif de levage selon la revendication 3, caractérisé en ce que ledit au moins un élément de guidage inférieur (43) prévu sur le dispositif porte-charge (22) ou disposé sur l'élément porteur (21) à l'extérieur de la colonne de levage (14) appuie contre au moins une surface de guidage (28) de la colonne de levage (14) orientée vers le dispositif porte-charge (22).
  5. Dispositif de levage selon la revendication 1, caractérisé en ce que sur l'élément porteur (21) sont prévus au moins une unité hydraulique (20) et/ou la commande (17) et/ou au moins un accumulateur (63), et en ce que de préférence sur un dispositif de base (12) recevant la colonne de levage (14) est disposé un dispositif de manipulation (66).
  6. Dispositif de levage selon la revendication 3 ou 4, caractérisé en ce que ledit au moins un élément de guidage supérieur (41) disposé en position fixée à l'extrémité supérieure de la colonne de levage (14) est fixé directement aux parois latérales (32) et/ou à la paroi arrière (31) de la colonne de levage (14).
  7. Dispositif de levage selon la revendication 1, caractérisé en ce que l'élément porteur (21) présente une section fermée, notamment en forme de douille ou de tube, à l'intérieur de laquelle est disposé un élément d'entraînement (19) de l'unité d'entraînement (18).
  8. Dispositif de levage selon la revendication 1, caractérisé en ce que l'élément porteur (21) qui entoure la colonne de levage (14) est réalisé en tant que douille fermée qui permet à la colonne de levage (14) de plonger dans l'élément porteur (21).
  9. Dispositif de levage selon la revendication 1, caractérisé en ce que l'élément porteur (21) présente des surfaces de guidage (28) qui sont disposées à angle obtus ou à angle droit entre elles et que les éléments de guidage supérieurs (43) sont disposés sur la colonne de levage (14) selon le même angle obtus ou le même angle droit pour permettre le guidage de l'élément porteur (21).
  10. Dispositif de levage selon la revendication 1, caractérisé en ce que le long d'une zone de déplacement de l'élément porteur (21) à l'intérieur de laquelle ledit au moins un élément de guidage inférieur (43) appuie contre au moins une surface de guidage (42) de la colonne de levage (14), il est prévu d'utiliser pour la formation de ladite au moins une surface de guidage (42) un matériau qui est plus résistant à l'usure que celui utilisé dans une partie supérieure de la colonne de levage (14).
  11. Dispositif de levage selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit au moins un élément de guidage supérieur et inférieur (41, 43) est formé en tant qu'au moins un galet de roulement et/ou au moins un élément de glissement, et en ce que de préférence pour des galets de roulement conjugués au moins par paires sur l'élément porteur (21) sont prévus des galets de roulement conjugués au moins par paires sur la colonne de levage (14).
  12. Dispositif de levage selon la revendication 1, caractérisé en ce qu'à l'extrémité inférieure de l'élément porteur (21) est prévu un dispositif de verrouillage (71) qui présente un élément de verrouillage mécanique activable (72) qui peut être activé à l'aide d'un dispositif d'activation (72) et qui appuie, dans une position de verrouillage (75), contre un palier-support (82) situé sur la colonne de levage (14), et en ce que de préférence le palier-support (81) est réalisé sous forme de tôle perforée (86) pourvue de plusieurs ouvertures (81) disposées à intervalles réguliers entre elles, et en ce que de préférence le palier-support (81) est maintenu à l'extrémité supérieure de la colonne de levage (14) avec un dispositif d'accrochage (88) et est fixé en position par rapport à la colonne de levage (14) notamment par au moins un assemblage amovible (91).
  13. Dispositif de levage selon la revendication 12, caractérisé en ce que l'élément de verrouillage (72) est réalisé en tant que coude en forme de L qui est logé dans une ouverture en forme de trou oblong ménagée dans l'élément porteur (21) de manière à pouvoir pivoter dans celle-ci et en ce qu'il est fixé dans l'ouverture ménagée dans l'élément porteur (21) de manière renforcée par rapport à ladite ouverture de l'élément porteur (21) de préférence à l'aide d'un élément de renforcement (84), notamment d'un élément de renforcement en forme de U qui est orienté de manière à être fermé en direction de la réception de charge.
  14. Dispositif de levage selon la revendication 12, caractérisé en ce qu'en vue du déverrouillage du dispositif de verrouillage (71) est prévu un dispositif d'activation (72), en particulier un aimant de collage, qui est mis hors tension après un mouvement de déplacement de l'élément porteur (21) par rapport à la colonne de levage (14).
  15. Dispositif de levage selon la revendication 1, caractérisé en ce que sur l'élément porteur (21) ou sur la colonne de levage (14) sont prévus des éléments de guidage (41, 43) qui s'appuient contre la colonne de levage (14) ou contre l'élément porteur (21).
EP10712349.9A 2009-03-30 2010-03-30 Dispositif de levage, notamment dispositif de levage mobile Active EP2414271B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009014951A DE102009014951A1 (de) 2009-03-30 2009-03-30 Hebevorrichtung, insbesondere mobile Hebevorrichtung
PCT/EP2010/002020 WO2010112200A1 (fr) 2009-03-30 2010-03-30 Dispositif de levage, notamment dispositif de levage mobile

Publications (2)

Publication Number Publication Date
EP2414271A1 EP2414271A1 (fr) 2012-02-08
EP2414271B1 true EP2414271B1 (fr) 2016-02-17

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP10712349.9A Active EP2414271B1 (fr) 2009-03-30 2010-03-30 Dispositif de levage, notamment dispositif de levage mobile
EP10711593.3A Active EP2414270B1 (fr) 2009-03-30 2010-03-30 Dispositif de levage, notamment dispositif de levage mobile

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP10711593.3A Active EP2414270B1 (fr) 2009-03-30 2010-03-30 Dispositif de levage, notamment dispositif de levage mobile

Country Status (6)

Country Link
US (2) US9249000B2 (fr)
EP (2) EP2414271B1 (fr)
CN (1) CN102387980B (fr)
BR (1) BRPI1012735B1 (fr)
DE (1) DE102009014951A1 (fr)
WO (2) WO2010112199A1 (fr)

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CN106586900A (zh) * 2017-02-07 2017-04-26 天津市富仁德钢管有限公司 一种镀锌钢管固定升降装置

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FR3012122B1 (fr) * 2013-10-18 2015-12-04 Sefac Systeme de levage d'un vehicule compose de plusieurs colonnes
US10081523B2 (en) * 2014-05-15 2018-09-25 Vehicle Service Group, Llc Load indicator for vehicle lift
US10486950B2 (en) * 2014-07-16 2019-11-26 Gray Manufacturing Company, Inc. Down stop indicator for vehicle lift
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WO2010112199A1 (fr) 2010-10-07
EP2414270A1 (fr) 2012-02-08
US20120018688A1 (en) 2012-01-26
CN102387980B (zh) 2014-12-03
WO2010112200A1 (fr) 2010-10-07
EP2414270B1 (fr) 2013-09-04
DE102009014951A1 (de) 2010-10-14
US9249000B2 (en) 2016-02-02
BRPI1012735A2 (pt) 2016-10-25
US20120032126A1 (en) 2012-02-09
US10781089B2 (en) 2020-09-22
CN102387980A (zh) 2012-03-21
BRPI1012735B1 (pt) 2020-09-08
EP2414271A1 (fr) 2012-02-08

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