IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0596793
(2005-05-17)
|
등록번호 |
US-8191865
(2012-06-05)
|
국제출원번호 |
PCT/US2005/017320
(2005-05-17)
|
§371/§102 date |
20080305
(20080305)
|
국제공개번호 |
WO2006/112857
(2006-10-26)
|
발명자
/ 주소 |
- Polins, Kurt E
- Felpel, Glenn D
- Pavlick, Allan
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
56 |
초록
▼
A preferred embodiment of a system includes a lifting device for lifting a motor vehicle, a support structure for mounting the lifting device in a pit, and a carriage for supporting the lifting device from the support structure and being movable within the support structure. The system also includes
A preferred embodiment of a system includes a lifting device for lifting a motor vehicle, a support structure for mounting the lifting device in a pit, and a carriage for supporting the lifting device from the support structure and being movable within the support structure. The system also includes a cover coupled to opposite sides of the carriage so that the cover extends away from the carriage and continuously between the opposite sides of the carriage.
대표청구항
▼
1. A heavy duty lift system configured for lifting a heavy motor vehicle, comprising: first and second scissor lifts capable of lifting a motor vehicle, each one of the scissor lifts including at least three tiers and a cylinder that is diagonally positioned and coupled near the top of the first tie
1. A heavy duty lift system configured for lifting a heavy motor vehicle, comprising: first and second scissor lifts capable of lifting a motor vehicle, each one of the scissor lifts including at least three tiers and a cylinder that is diagonally positioned and coupled near the top of the first tier and near the bottom of an uppermost one of the at least three tiers, and each one of the scissor lifts is located below ground surface;a support structure capable of being located in a pit;a carriage for supporting the second scissor lift from the support structure and being longitudinally movable within the support structure; anda cover coupled to opposite sides of the carriage so that the cover extends away from the carriage and continuously between the opposite sides of the carriage, the cover is configured to move in a reciprocal motion. 2. The system of claim 1, wherein the lifting device is capable of moving between an extended position in which a portion of the lifting device extends from the support structure, and a retracted position in which a substantial entirety of the lifting device is positioned within the support structure, and the reciprocal motion of the cover includes translation in response to movement of the carriage so that the lift can be moved between the extended and retracted positions at any location within a range of travel of the carriage within the support structure. 3. The system of claim 1, wherein the cover comprises a plurality of cover elements each pivotally coupled to an adjacent one of the cover elements. 4. The system of claim 3, wherein each cover element comprises a substantially rod-shaped member, and a recess for receiving the substantially rod-shaped member of the adjacent one of the cover elements. 5. The system of claim 3, wherein the each of the cover elements comprises a first major portion, a second major portion, and first and second side portions that adjoin each of the first and second major portions to form an isotropic beam. 6. The system of claim 3, further comprising first track secured to the support structure for supporting the carriage. 7. The system of claim 5, further comprising second track secured to the support structure below the first track, wherein the cover elements are movably disposed on the first and second tracks. 8. The system of claim 7, further comprising a radius end plate having a curvilinear channel formed therein, wherein the radius end plate is secured to the support structure so that ends of the channel substantially align with the first and second tracks and the cover elements translate between the first and second tracks by way of the channel. 9. The system of claim 1, further comprising a motor mounted on the carrier, a drive gear assembly mounted on the carrier and coupled to the motor so that the motor drives the drive gear assembly, a gear tack mounted on the support structure so that the drive gear assembly engages the gear track and the engagement of the drive gear assembly and the gear track causes the carriage to translate in relation to the support structure. 10. The system of claim 8, further comprising a first and a second of the radius end plates mounted on the support structure so that the first radius end plate faces the second radius end plate, wherein the channels of the first and second radius end plates each have a depth that varies along a length of the channels so that the first and second radius end plates exert a centering force on the cover elements as the cover elements translate through the channels. 11. The system of claim 7, further comprising a first bearing strip mounted on the first track for slidably contacting the carriage and the cover elements, and a second bearing strip mounted on the second track for slidably contacting the cover elements. 12. The system of claim 8, further comprising a first and a second of the radius end plates mounted on the support structure so that the channels of the first and second radius end plates and the first and second track form a substantially continuous path for the cover elements. 13. The system of claim 1, wherein the lifting device comprises a mating assembly for engaging an axle of the motor vehicle so that each scissor lift can engage the motor vehicle by the axle. 14. A kit, comprising: a support structure capable of being installed in a pit so that a lower surface of the support structure rests on a floor of the pit;fasteners for securing the support structure in place within the pit; anda scissors lift including a plurality of members each having a first width which tapers across a length to a second width which is smaller than said first width, and leaves connected to the members, and including a cylinder connected thereto;the scissor lift is capable of being mounted on the support structure so that the tiers of the scissors lift can move between an extended position wherein a portion of the scissors lift is extended from the support structure, and a retracted position wherein a substantial entirety of the scissors lift is located within the support structure; anda carriage for supporting the second scissor lift, the carriage being longitudinally movable within the support structure, whereby upon assembly the carriage is capable of positioning the scissor lift. 15. The kit of claim 14 further comprising a cover coupled to the carriage so that the cover translates with the carriage, the cover covers a portion of the support structure not occupied by the carriage, and the cover extends continuously between opposite ends of the carriage. 16. The kit of claim 14, wherein the lifting device comprises a mating assembly for engaging an axle of a motor vehicle so that the lifting device can lift the motor vehicle by the axle as the lifting device extends between the retracted and extended positions. 17. A lifting device configured for lifting a heavy vehicle, comprising: a base;multiple tiers including at least a lower tier and an upper tier;the lower tier including a first leg structure pivotably coupled to the base and a first leg leaf pivotably coupled to the base and the first leg, the first leg structure forming an approximate U-shape;a bolster;an upper tier including a second leg structure pivotably coupled to the bolster and a second leg leaf pivotably coupled to the bolster and the second leg, the second leg structure forming an approximate U-shape, anda cylinder for actuating the tiers;wherein the lower tier is operatively coupled to the upper tier so that movement of the first leg in relation to the first leg leaf and pivotal movement of the second leg in relation to the second leg leaf causes the bolster to rise and lower in relation to the base, whereby the configuration of the U-shaped first and second legs are such that the tiers form a structure that is (i) compact when in a retracted position such that the structure is suitable for being located on a carriage in a pit and (ii) capable of lifting a heavy vehicle in its extended position. 18. The device of claim 17, further comprising a mating assembly mounted on the bolster for engaging an axle of the motor vehicle, the mating assembly comprises: a base adapter that engages the bolster, the base adapter having a plurality of relatively large and small diameter holes formed therein; andan accessory adapter configured to engage the axle of the motor vehicle, the accessory adapter comprising a relatively large-diameter projection and a relatively small-diameter projection for engaging the base adapter by way of respective ones of the relatively large and small diameter holes. 19. The device of claim 18, wherein the base adapter has three of the relatively small diameter holes and two of the relatively small diameter holes formed therein, each of the relatively small diameter holes begin located between two of the relatively large diameter holes so that the accessory adapter can be installed in any one of four different positions on the base adapter. 20. The device of claim 18, further comprising a plurality of risers for mounting between the base adapter and the accessory adapter, wherein each of the risers has a different height so that a height of the accessory adapter above the base adapter can be varied. 21. The device of claim 18, wherein the base adapter comprises a plurality of the accessory adapters each configured to engage a different type of axle. 22. The device of claim 18, wherein the base adapter comprises a pin assembly for engaging a retaining plate and a stop of the bolster to restrict movement of the base plate in relation to the bolster. 23. The device of claim 17, wherein the cylinder is coupled at one end to one of the first and second legs and the first and second leg leaves, and at its opposing end to another of the of the first and second legs and the first and second leg leaves, so that movement of a piston in relation to the rest of the cylinder causes the pivotal movement of the first and second legs and the first and second leg leaves. 24. The device of claim 23, further comprising a locking mechanism comprising a first and a second jaw lock each having teeth formed thereon and pivotally coupled to one of the first and second legs and the first and second leg leaves; and an upper lock assembly having teeth formed thereon and pivotally coupled to another of the of the first and second legs and the first and second leg leaves, so that the teeth of the upper lock assembly can engage the teeth of the first and a second jaw lock on a selective basis and thereby prevent the lifting device from moving between and extended and a retracted position of the lifting device. 25. The device of claim 24, wherein the cylinder is positioned within the first and a second jaw lock and the upper lock assembly. 26. The device of claim 23, wherein the cylinder is coupled to the one of the first and second legs and the first and second leg leaves by a pin, the cylinder comprise a pin-retaining member having a split line that permits a first portion of the pin-retaining member to be removed from a remainder of the pin-retaining member. 27. The device of claim 17, wherein a lifting capacity of the device is approximately 30,000 pounds. 28. A vehicle lift, comprising: a base;a first tier comprising a first member having a first width which tapers across a length to a second width which is smaller than said first width, and two first leg leaves pivotally coupled to the first weldment, the first weldment and the first leg leaves being pivotally coupled to the base;a second tier comprising second member pivotally coupled to the first leg leaves, and two second leg leaves pivotally coupled to the first and second weldments;a third tier comprising a third member having a first width which tapers across a length to a second width which is smaller than said first width and pivotally coupled to the second leg leaves, and two third leg leaves pivotally coupled to the second and third weldments;a cylinder operatively coupled to actuate the tiers from a retracted position to an extended position, anda bolster pivotally coupled to the third weldment and the third leg leave, whereby the tiers form a structure that is compact when in a retracted position such that the structure is suitable for being located on a carriage in a pit. 29. The vehicle lift of claim 28, wherein: the first member comprises two first legs, a first cross member secured to each of the first legs, and a first pin secured to the first legs by welds formed between the first pin and inwardly and outwardly facing surfaces of each of the first legs;the second member comprises two second legs, a second cross member secured to each of the second legs, and a second pin secured to the second legs by welds formed between the second pin and inwardly and outwardly facing surfaces of each of the second legs; andthe third member comprises two third legs, a third cross member secured to each of the second legs, and a third pin secured to the third legs by welds formed between the second pin and inwardly and outwardly facing surfaces of each of the third legs. 30. The vehicle lift of claim 28, wherein the base comprises a base plate, a first and second channel mounted on the base plate, and bearings disposed within the first and second channels and coupled to the first member and the first leg leaves so that the bearings slide within the first and second channels in response pivotal movement of the first member in relation to the first leg leaves. 31. The vehicle lift of claim 28, wherein the bolster comprises a base plate, a first and second channel mounted on the base plate, bearings disposed within the first and second channels and coupled to the third member and the third leg leaves so that the bearings slide within the first and second channels in response pivotal movement of the third member in relation to the third leg leaves, and two substantially T-shaped members mounted on the base plate for engaging the mating adapter. 32. The vehicle lift of claim 28, further comprising means coupled to the first and third members at the first widths for locking the lifting device in an extended position of the lifting device. 33. The vehicle lift of claim 28, further comprising means coupled to the first and third member for causing the lifting device to translate between a retracted position of the lifting device, and the extended position. 34. The lifting device of claim 17 further comprising a middle tier connected between the lower tier and the upper tier. 35. The vehicle lift of claim 28, further comprising a mating adapter having a surface capable of engaging an axle of a motor vehicle so that the vehicle lift can lift the motor vehicle by way of the axle. 36. A vehicle lift configured for lifting a heavy vehicle, comprising: a base;a scissor lift assembly including a cylinder and multiple tiers that include legs that cooperate to extend and retract upon actuation of the cylinder;at least some of the legs having a first width which tapers across a length to a second width which is smaller than said first widthwherein said tapering forms complementary shapes to enable a compact configuration when the lift is in a fully retracted position, wherein the lift is suitable for being carried on a carriage in a pit. 37. The vehicle lift of claim 36, wherein the first and second widths are configured such that in a fully retracted position the first width of an upper one of the legs is oriented with the second width of a lower one of the legs, whereby in the retracted position the tiers fit together in the compact configuration. 38. The kit of claim 14 wherein the scissor lift is configured for lifting a heavy vehicle. 39. The kit of claim 38 wherein the scissor lift includes multiple tiers that are formed by the scissor lift members and the leaves. 40. The kit of claim 39 wherein the multiple tiers include a lower tier and an upper tier, the lower tier being formed by a first one of the scissor lift members and leaves, an upper tier being formed by a second one of the scissor lift members and leaves. 41. The kit of claim 40, wherein the multiple tiers include a lower tier and an upper tier, a first end of the cylinder is coupled to a first scissor lift member proximate the first width of the first scissor lift member and a second end of the cylinder is coupled to a second scissor lift member proximate the first width of the second scissor lift member. 42. The kit of claim 41 wherein each one of the scissor lift members is a U-shaped weldment. 43. The kit of claim 39 further comprising an intermediate tier between the upper tier and the lower tier, the intermediate tier being formed by untapered members. 44. The lift of claim 17 wherein each one of the first leg structure and the second leg structure have a first width which tapers across a length to a second width which is smaller than said first width. 45. The lift of claim 23 wherein the cylinder is coupled to the first legs proximate the first width of the first legs and the piston is coupled to the second legs proximate the second width of the second legs. 46. The vehicle lift of claim 28 wherein the vehicle lift is configured for lifting heavy vehicles. 47. The vehicle lift of claim 28 wherein the second legs are untapered. 48. The vehicle lift of claim 28 wherein each one of the first and third members are approximately U-shaped weldments. 49. The vehicle lift of claim 36 wherein the at least some legs form an approximate u-shaped configuration. 50. The vehicle lift of claim 36 wherein other of the legs are untapered.
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