WO2016126295A1 - Rampe et dispositif d'extension d'un seul tenant - Google Patents

Rampe et dispositif d'extension d'un seul tenant Download PDF

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Publication number
WO2016126295A1
WO2016126295A1 PCT/US2015/060391 US2015060391W WO2016126295A1 WO 2016126295 A1 WO2016126295 A1 WO 2016126295A1 US 2015060391 W US2015060391 W US 2015060391W WO 2016126295 A1 WO2016126295 A1 WO 2016126295A1
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WO
WIPO (PCT)
Prior art keywords
platform
extension member
extension
vehicle
top surface
Prior art date
Application number
PCT/US2015/060391
Other languages
English (en)
Inventor
Steven H. Taylor
Original Assignee
Vehicle Service Group, Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vehicle Service Group, Llc filed Critical Vehicle Service Group, Llc
Publication of WO2016126295A1 publication Critical patent/WO2016126295A1/fr

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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
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065—Scissor linkages, i.e. X-configuration
    • B66F7/0666—Multiple scissor linkages vertically arranged

Definitions

  • a vehicle lift is a device operable to lift a vehicle such as a car, truck, bus, etc.
  • Some vehicle lifts operate by positioning two or more scissor lift assemblies at, or near, a shop floor level. The vehicle may be then driven or rolled into position above the two scissor lift assemblies, while the scissor lift assemblies are in a retracted position. The scissor lift assemblies may be actuated to extend the scissor lift assemblies upwardly, thus raising the vehicle to a desired height. Where two scissor lift assemblies are utilized, the scissor lift assemblies may be positioned at a central location relative to the vehicle's body such that the vehicle may balance on the scissor lift assemblies (e.g., under each axle). Afterward, the vehicle may then be lowered once the user has completed his or her task requiring the vehicle lift. In some instances, the scissor lift assemblies may be equipped with a hydraulic cylinder or other similar device to actuate the scissor lift assemblies.
  • FIG. 1 depicts a perspective view of an exemplary vehicle lift
  • FIG. 2 depicts a perspective view of a scissor lift assembly of the vehicle lift of FIG. 1 ;
  • FIG. 3 depicts an exploded view of the scissor lift assembly of FIG. 2;
  • FIG. 4 depicts a perspective view of a hydraulic actuator of the scissor lift assembly of FIG. 2;
  • FIG. 5A depicts a another perspective view of a scissor lift assembly similar to FIG. 2 with the platform ramps in a first configuration
  • FIG. 5C depicts a perspective view of the scissor lift assembly of FIG. 5A with the platform ramps in a third configuration
  • FIG. 6 depicts a top elevation view of the platform ramp of FIG. 5A without a ramp plate attached to a platform;
  • FIG. 7B depicts a side elevation view of the platform ramp of FIG. 6 in a second position
  • FIG. 7C depicts a side elevation view of the platform ramp of FIG. 6 in a third position
  • FIG. 8A depicts a perspective view of a scissor lift assembly with an optional platform extension in a first position
  • FIG. 9A depicts a perspective view of a scissor lift assembly with an optional platform extension on one end of the platform in a first position, and an optional platform ramp on the other end of the platform in a first position
  • FIG. 9B depicts a perspective view of the scissor lift assembly of FIG. 9A with the platform extension in a second position while the platform ramp remains in the first position
  • FIG. 9C depicts a perspective view of the scissor lift assembly of FIG. 9A with both the optional platform extension and the optional platform ramp in the respective second positions.
  • FIG. 10A depicts a perspective view of a scissor lift assembly with an optional platform ramp on one end of the platform.
  • FIG. 10B depicts a perspective view of the scissor lift assembly of FIG. 10A with an optional platform extension on the end of the platform.
  • FIG. 1 shows a perspective view of vehicle lift system (100) in a raised position.
  • Vehicle lift system (100) comprises two scissor lift assemblies (110).
  • Vehicle lift system (100) is operable to lift a vehicle by to a desired height by actuating scissor lift assemblies (110) from a retracted position to the extended position shown in FIG. 1.
  • scissor lift assemblies (110) may be positioned corresponding to each axle of a vehicle, or in other configurations they may be positioned to act as runways such that the platforms run parallel to the longitudinal axis of the vehicle. Even though the orientation may differ, the lifting aspects of the scissor lift assemblies (110) are still the same.
  • scissor lifts assemblies (1 10) support a vehicle by engaging each axle while raising the vehicle to a desired height.
  • vehicle lift system (100) is shown as comprising two scissor lift assemblies (1 10), it should be understood that any suitable number of scissor lift assemblies (110) may be used. For instance, in some examples four scissor lift assemblies (110) may be used with each scissor lift assembly (1 10) positioned at each corner of a vehicle.
  • other types of lift assemblies including for example post-mounted, parallelogram, mobile column, and frame- engaging lifts, will be used in various implementations of the systems described herein as will occur to those skilled in the art.
  • scissor lift assembly (1 10) comprises a base (120), a set of lifting linkages (130), a set of stabilizing linkages (150), a hydraulic actuator assembly (170), and a platform (180).
  • Base (120) provides a stable platform to which linkages (130, 150) and the rest of scissor lift assembly (1 10) may mount.
  • Base (120) may be freely movable about a shop floor, fixed in position on a shop floor, or mounted below a shop floor.
  • platform (180) may be positioned relatively close to base (120) and thus near a shop floor.
  • base (120) includes a pair of fixed mounting brackets (122) and a pair of slidable mounting brackets (124).
  • Fixed mounting brackets (122) rotatably secure a lower portion of lifting linkages (130) to base (120), as will be described in greater detail below.
  • slidable mounting brackets (124) slidable and rotatably secure a lower portion of stabilizing linkages (150) to base (120).
  • Lifting linkages (130) comprise a lower linkage assembly (132) and an upper linkage assembly (140).
  • Lower linkage assembly (132) comprises two longitudinally extending links (134) and a mounting bracket (136) fixed to the bottom of each link (134).
  • Each link (134) of lower linkage assembly (132) is parallel to the other and is rotatably mounted to base (120) by mounting bracket (136).
  • mounting bracket (136) also rotatably mounts hydraulic actuator assembly (170) to base (120) such that links (134) and hydraulic actuator assembly (170) are rotatable about a common axis.
  • Upper linkage assembly (140) comprises two parallel longitudinally extending links (142) and a mounting bracket (144). Each link (142) includes a bottom mounting portion (146) and a top mounting portion (147). Bottom mounting portion (146) rotatably secures upper linkage assembly (140) to bottom linkage assembly (130) such that links (142) of upper linkage assembly (140) may pivot relative to links (134) of lower linkage assembly (132). As will be described in greater detail below, top mounting portion (147) rotatably secures links (142) to platform (180). As will also be describe in greater detail below, mounting bracket (144) rotatably secures hydraulic actuation assembly (170) to upper linkage assembly (140).
  • Both links (134) of lower linkage assembly (132) and links (142) of upper linkage assembly (140) comprise fastening bores (139, 148).
  • fastening bores (139, 148) rotatably couple lifting linkages (130) to support linkages (150) such that loads carried by one linkage (130, 150) may be transferred to the other linkage (150, 130).
  • Fastening bores (139, 148) may be configured to support bearings, pins, screws, and/or other rotatable fastening devices as will be apparent to those of ordinary skill in the art in view of the teachings herein.
  • Each stabilizing linkage (150) comprises a lower linkage assembly (152) and an upper linkage assembly (160).
  • Lower linkage assembly (152) comprises two parallel longitudinally extending links (154).
  • Links (154) include a bottom mounting portion (156) and a top mounting portion (158).
  • Each bottom mounting portion (156) rotatably secures each link (154) to mounting brackets (124) on base (120).
  • mounting brackets (124) of base (120) are slidable relative to base (120).
  • bottom mounting portions (156) are operable to both slide and pivot links (154) relative to base.
  • this sliding and pivoting feature of bottom mounting portions (156) permits scissor lift assembly (110) to actuate vertically.
  • Top mounting portions (158) rotatably secure each link (154) to upper linkage assembly (160) such that lower linkage assembly (152) and upper linkage assembly (160) may pivot relative to each other. It should be understood that, while not specifically depicted in FIGS. 2 and 3, mounting portions (156, 158) may also include bearings, pins, screws, and/or other fasteners configured to facilitate rotatable fastening.
  • Upper linkage assembly (160), like lower linkage assembly (152), comprises two parallel longitudinally extending links (162).
  • Links (162) include a bottom mounting portion (164) and a top mounting portion (166).
  • Each bottom mounting portion (164) rotatably secures each link (162) to top mounting portions (158) of lower linkage assembly (152) such that lower linkage assembly (152) and upper linkage assembly (160) are pivotable relative to each other.
  • Top mounting portions (166) rotatably secure each link (162) to a mounting bracket (not shown) of platform (180).
  • the mounting brackets of platform (180) are similar to mounting brackets (124) of base (120) in that the mounting brackets of platform (180) are slidable relative to platform.
  • top mounting portions (166) are operable to both pivot and slide links (162) relative to platform (180).
  • top mounting portions (166) are operable to permit scissor lift assembly (110) to actuate vertically. It should be understood that, while not specifically depicted in FIGS. 2 and 3, mounting portions (164, 166) may also include bearings, pins, screws, and/or other fasteners configured to facilitate rotatable fastening.
  • Both links (154) of lower linkage assembly (152) and links (162) of upper linkage assembly (160) comprise fastening bores (159, 168).
  • fastening bores (159, 168) rotatably couple lifting linkages (130) to support linkages (150) such that loads carried by one linkage (130, 150) may be transferred to the other linkage (150, 130).
  • Fastening bores (159, 168) may be configured to support bearings, pins, screws, and/or other rotatable fastening devices as will be apparent to those of ordinary skill in the art in view of the teachings herein.
  • Platform (180) is generally shaped as a longitudinally extending rectangle and includes an upper surface (182) and an open bottom (not shown).
  • Upper surface (182) may be configured to support an axle of a vehicle.
  • upper surface (182) is shown as generally flat, although it should be understood that in other examples upper surface (182) may have any other suitable shape or may contain other features configured to support an axle of a vehicle.
  • upper surface (182) may include an adaptor device, which may be selectively actuated by a user so that upper surface may adapt to axles of different shapes and/or sizes.
  • upper surface (182) may include a fixed geometry comprising annular indentations, which may be configured to support a specific axle shape and/or size.
  • upper surface (182) may include any other features suitable for supporting an axle as will be apparent to those of ordinary skill in the art in view of the teachings herein.
  • Hydraulic actuator assembly (170) comprises a locking mechanism (172) and a hydraulic actuator (174).
  • Locking mechanism (172) is configured to successively lock scissor lift assembly (110) as it is actuated vertically, preventing scissor lift assembly (110) from inadvertently lowering. In other words, as scissor lift assembly is actuated vertically in the upward direction, further upward actuation is permitted, yet actuation in the downward direction is prevented by locking mechanism (172).
  • locking mechanism (172) may be selectively unlocked to permit such lowering.
  • locking mechanism (172) may be constructed and operable in accordance with at least some of the teachings of U.S. Pub. No. 2012/0048653, entitled “Multi-Link Automotive Alignment Lift,” published March 1, 2012, the disclosure of which is incorporated by reference herein.
  • the actuation sequence is initiated by actuating hydraulic actuator (174) by communicating pressurized hydraulic fluid to cylinder (175), thereby driving elongate arm (176) outwardly away from hydraulic cylinder (175).
  • Mounting brackets (136, 144) are thus forced in away from each other. Because mounting bracket (136) is in a relatively fixed position, mounting bracket (144) is pushed upwardly relative to base (120). Links (134, 142) are thus pivoted relative to each other and relative to base (120), driving platform (180) upwardly in the vertical direction.
  • links (134, 142) of lifting linkages (130) are rotatably secured to links (154, 162) of stabilizing linkages (150) via fastening bores (139, 148, 159, 168). Because of this, the lifting force imparted upon links (134, 142) by hydraulic actuator (174) is also imparted upon links (154, 162). Thus, upward motion of lifting linkages (130) also results in upward motion of stabilizing linkages (150), which in turn results in upper surface (182) of platform (180) being raised relatively horizontally. This lifting process continues until platform (180) is raised to a desired height. Platform (180) may be lowered by relieving hydraulic fluid from cylinder (175), such that the weight of the vehicle and the weight of lift assembly (110) itself will drive platform (180) back downwardly to the retracted position.
  • base (120) provides a stable platform to which the rest of scissor lift assembly (1 10) may mount.
  • Base (120) may be freely moveable about a shop floor, fixed in position on a shop floor, or mounted below a shop floor. While in the retracted position, platform (180) may permit a vehicle to be driven or rolled over scissor lift assembly (1 10) prior to initiation of the lifting process. If upper surface (182) of platform (180) is not low enough for any reason, such as base (120) not being mounted below a shop floor, the vehicle may be driven over ramp (300) in order to place the vehicle over scissor lift assembly.
  • FIGS. 5A-C show scissor lift assembly (110) with ramps (300) and (301) at respective ends of platform (180) in three different
  • FIG. 5A shows ramps (300) of scissor lift assembly (1 10) in a first configuration where both ramps (300) and (301) are in a downward position.
  • This first configuration can be used in a variety of circumstances. For a first example, if scissor lift assembly (110) is in a retracted position, ramps (300) and (301) can be used for vehicles to drive or roll on top of ramps (300) and (301) to help lift and guide the vehicle onto scissor lift assembly (1 10).
  • FIG. 5B shows ramps (300) and (301) of scissor lift assembly (110) in a second configuration, wherein one ramp (300) is in a downward position and second ramp (301) is in a raised position.
  • vehicles can drive or roll on top of downward ramp (300) to help lift and guide the vehicle onto scissor lift assembly (110) prior to initiation of the lifting process.
  • the vehicle may then drive all the way over or even past raised ramp (301), as the raised ramp (301) acts as an extension of upper surface (182) of platform (180). Therefore, raised ramp (301) helps support the weight of the vehicle as scissor lift assembly (1 10) lifts the vehicle.
  • This configuration may be utilized when the length or configuration of the vehicle being lifted requires the upper surface (182) of scissor lift assembly (110) to be longer.
  • the extension of upper surface (182) provided by raised ramp (301) ensures that more of the vehicle will be in contact with platform (180) of scissor lift assembly (1 10), increasing stability of the lifted vehicle and potentially reducing the weight borne by each unit of surface area of the underside of the vehicle.
  • FIG. 5C shows ramps (300) and (301) of scissor lift assembly (110) in a third configuration, wherein both ramps (300) and (301) are in a raised position.
  • This configuration may be utilized, for example, after a vehicle has driven or rolled on top of upper surface (182) of platform (180).
  • both raised ramps (300) and (301) of the third configuration may act as extensions of upper surface (182) of platform (180). Therefore, both raised ramps (300) and (301) help support the weight of the vehicle as scissor lift assembly (110) lifts the vehicle.
  • This configuration may be utilized, for example, when the length or configuration of the vehicle being lifted requires an even greater extension of upper surface (182) than the configuration of FIG. 5B.
  • the extension of upper surface (182) provided by raised ramps (300) and (301) ensures more of the vehicle's frame will be in contact with scissor lift assembly (1 10), increasing stability of the lifted vehicle and potentially reducing the weight borne by each unit of surface area of the underside of the vehicle.
  • raised ramps (300) and (301) lengthen upper surface (182) enough that the wheels of the vehicle support the weight of the vehicle, and the trim or underbody bears none of that weight.
  • FIGS. 6-7C show a more detailed description of ramp (300), which will be described below.
  • FIG. 6 shows a top view of ramp (300) at the end of platform (180) (for clarity, ramp plate (310) is not shown in this illustration).
  • FIGS. 7A-C show ramp (300) in various positions from a raised position to a downward position.
  • Platform (180) comprises upper surface (182), extending support block (183), and support frame hinge (184).
  • Ramp (300) comprises ramp plate (310), support frame (340), link (320), and link hinge (330).
  • Support frame (340) connects to link hinge (330) and support frame hinge (184) as well as ramp plate (310).
  • Support frame (340) can rotate about support frame hinge (184).
  • Support frame hinge (184) is mounted to platform (180).
  • Link hinge (330) is located on the distal end of support frame (340) and connects to link (320).
  • Link (320) can rotate about link hinge (330). Therefore, support frame (340) rotates relative to platform (180), and link (320) rotates relative to support frame (340).
  • Link (320) has a support recess (322) and a stability recess (321).
  • link (320) allows the distal end of ramp plate (310) to move downward, possibly to the extent that link hinge (330) touches the floor or ground, as shown.
  • a vehicle may utilize ramp (300) by driving or rolling on top of ramp plate (310) in order to access or descend from platform (180).
  • a third position, illustrated in FIG. 7C, shows link (320) rotated completely upward to the point that its edge contacts or nearly contacts ramp plate (310), and stability recess (321) mates with extending support block (183). This is the position ramp (300) would take if scissor lift assembly (110) were in a lifted state and ramp (300) were not in contact with the frame of the vehicle.
  • extender (400) can be built into or inserted on one or both of the ends of platform (180). As shown in FIG. 8A-8B, extender (400) comprises extender arms (410) and extender plates (420). One or both ends of platform (180) have a transverse surface (185) with slots at the end to receive extender arms (410).
  • Extender plate (420) is designed for contact with a vehicle to distribute the load of a vehicle in a manner providing more stability while the vehicle is lifted. Extender plate (420) is adjustable by sliding extender arms (410) along platform (180), thereby changing the effective length of platform (180). Therefore, the length of a vehicle is not an issue when providing stability of a lifted vehicle. A greater portion of the vehicle will be in contact with extenders (400) and upper surface (182) of platform (180), which in turn more safely distributes the load of the lifted vehicle.
  • FIGS. 9A-C show scissor lift assembly (110) with ramp (300) attached to one end of platform (180) and extender (400) placed on the other end of platform (180).
  • ramp (300) base (120) does not have to be close to the ground when scissor lift assembly (110) is in a lowered position.
  • extenders (400) the length of the vehicle is more easily adapted to when attempting to provide more stability in a raised state.
  • FIG. 9A shows ramp (300) in a downward position and extender (400) in a retracted position. If scissor lift assembly (110) were lowered from the illustrated position, a vehicle could roll or drive over scissor lift assembly (110) via ramp (300).
  • FIG. 9B shows ramp (300) in a downward position and extender (400) in an extended position. If the vehicle were too long for upper surface (182) of platform (180) to provide maximum contact with the vehicle in a lifted state, then extender (400) in an extended position could provide more stability.
  • FIG. 9C shows ramp (300) in a raised position and extender (400) in an extended position. This configuration can be used if upper surface (182) of platform (180) and extender (400) in an extended position could not provide enough length to provide maximum contact with the vehicle in order to provide more stability in a lifted state.
  • FIGS. 9A-9C allows for both greater flexibility with the location of upper surface (182) of platform (180) due to ramp (300), and the ability to accommodate more vehicle lengths due to extender (400).
  • FIGS. 10A-10B A hybrid extension lift assembly (500) is illustrated in FIGS. 10A-10B.
  • platform (180) includes ramp (301) as described in connection with other embodiments herein.
  • ramp plate (510) is attached to platform (180) by hinge (512), which enables ramp plate (510) to rotate from the lowered position illustrated in FIG. 10A at least to a horizontal position approximately coplanar with top surface (182) of platform (180).
  • rollers (514) Positioned along the opposite edge of ramp plate (510) from hinge (512) are rollers (514), which strike the ground as platform (180) is being lowered, providing an inclined plane between the surface of the floor or ground and the top surface (182) of platform (180).
  • Vertical slots (525) in the end of platform (180) are configured to receive horizontally extending arms (522) of extension (520) as illustrated in FIG. 10B, for example, after a vehicle is positioned over lift assembly (500) but before platform (180) is raised to bear the weight of the vehicle.
  • Extender plate (524) of extension (520) is then able to support part of the vehicle, spreading the weight of the vehicle across a greater total surface area and, in some embodiments, increasing stability.
  • teachings herein may be readily applied to various kinds of lifts.
  • teachings herein may be readily applied to platform lifts, material lifts, man lifts, etc.
  • teachings herein may also be readily applied to robotic leg assemblies, adjustable work stations, and shock absorber systems.
  • suitable ways in which the teachings herein may be incorporated into such systems and assemblies will be apparent to those of ordinary skill in the art.
  • various other kinds of systems and assemblies in which the teachings herein may be incorporated will be apparent to those of ordinary skill in the art.

Abstract

La présente invention concerne un ensemble de levage de véhicule (110) comprenant une plateforme (180) qui supporte le véhicule levé. Une ou plusieurs extensions (300, 301) sont liées dans la plateforme (180) pour supporter le véhicule sur une surface plus grande. Certaines des extensions (300) servent de rampes pour la plateforme (180) lorsqu'elles sont dans une position, puis de structures de support horizontales lorsqu'elles se trouvent dans une seconde position. Certaines extensions (300) sont raccordées de manière rotative à l'extrémité de la plateforme (180) tandis que d'autres extensions (400) comprennent des parties allongées qui peuvent être insérées dans des fentes ou d'autres structures de réception dans la plateforme (180). Certains modes de réalisation comprennent de multiples types d'extensions.
PCT/US2015/060391 2015-02-02 2015-11-12 Rampe et dispositif d'extension d'un seul tenant WO2016126295A1 (fr)

Applications Claiming Priority (2)

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US201562110695P 2015-02-02 2015-02-02
US62/110,695 2015-02-02

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WO2016126295A1 true WO2016126295A1 (fr) 2016-08-11

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0878438A1 (fr) * 1997-05-15 1998-11-18 Société Fogautolube Perfectionnements aux chemins de roulement de ponts élévateurs à prise sous coque.
EP1528034A1 (fr) * 2003-10-27 2005-05-04 Stenhoj Autolift A/S Chemin de roulement pour pont élévateur
US20100270523A1 (en) * 2009-04-23 2010-10-28 Maha Maschinenbau Haldenwang Gmbh & Co. Kg Scissor lifting platform
TW201226305A (en) * 2010-12-31 2012-07-01 Ming Lurn Prec Machine Co Ltd Vehicle lift

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0878438A1 (fr) * 1997-05-15 1998-11-18 Société Fogautolube Perfectionnements aux chemins de roulement de ponts élévateurs à prise sous coque.
EP1528034A1 (fr) * 2003-10-27 2005-05-04 Stenhoj Autolift A/S Chemin de roulement pour pont élévateur
US20100270523A1 (en) * 2009-04-23 2010-10-28 Maha Maschinenbau Haldenwang Gmbh & Co. Kg Scissor lifting platform
TW201226305A (en) * 2010-12-31 2012-07-01 Ming Lurn Prec Machine Co Ltd Vehicle lift

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