A portable tubular motorcycle lift is provided which utilizes a scissor frame configuration. The scissor frame includes an inner lifting structure and an outer lifting structure rotatably hinged about a common center fulcrum. An upper cradle support is attached to the inner and outer lifting structu
A portable tubular motorcycle lift is provided which utilizes a scissor frame configuration. The scissor frame includes an inner lifting structure and an outer lifting structure rotatably hinged about a common center fulcrum. An upper cradle support is attached to the inner and outer lifting structures. The motorcycle lift has a deployed configuration and a folded, stowable non-deployed configuration which allows the lift to be transported similar to a dolly. To provide the required forces to lift a large motorcycle, an articulated lifting system which includes a jacking device, lifting arm, and linkage arm, is integrated within the inner and outer lifting structures. Other features of the motorcycle lift include a bracing member, rear support section, removable ramp, well chock, remote jacking system, remote pressure release feature, and removable and positionable auxiliary jacking device positioned with the upper cradle support.
대표청구항▼
What is claimed is: 1. A portable motorcycle lifting device for supporting a motorcycle having front and rear tires, the device comprising: an inner lifting structure having a first forward and first rearward end; an outer lifting structure having a second forward and second rearward end; an upper
What is claimed is: 1. A portable motorcycle lifting device for supporting a motorcycle having front and rear tires, the device comprising: an inner lifting structure having a first forward and first rearward end; an outer lifting structure having a second forward and second rearward end; an upper wheel cradle support having a third forward and third rearward end, the wheel cradle support being sized and configured to receive tires of the motorcycle, the wheel cradle support including a wheel chock; and an articulated lifting system integrated within said inner and outer lifting structures, wherein said inner lifting structure is generally positioned within said outer lifting structure and both lifting structures are connected by a common fulcrum positioned approximately in the middle of each lifting structure, wherein said second rearward end of said outer lifting structure is rotatably and slidably attached to said third rearward end of said upper support cradle, wherein said first forward end of said inner lifting structure is rotatably attached to said third forward end of said upper cradle support, wherein said articulated lifting system may be operated to raise said upper cradle support from a non-deployed position to a fully deployed position. 2. The lifting device according to claim 1, said first rearward end of said inner lifting structure having a first transversely mounted cross member, and said second forward end of said outer lifting structure having a second transversely mounted cross member. 3. The lifting device according to claim 2, said first cross member having a roller wheel assembly mounted to each end of said first cross member. 4. The lifting device according to claim 3, wherein when said lifting device is deployed or reconfigured to the non-deployed position, said first cross member rolls on the floor surface via said roller wheel assemblies and said second cross member stays in a stationary position. 5. The lifting device according to claim 4, wherein when said lifting device may be moved similar to that of a dolly. 6. The lifting device according to claim 4, wherein said lifting device may be stored in a vertically upright position similar to that of a dolly. 7. The lifting device according to claim 1, said wheel chock adapted to accept an incoming wheel without requiring any adjustment by the operator of said lifting device. 8. The lifting device according to claim 1, said third forward end of said upper cradle having an upwardly inclined portion which forms a forward tire cradle. 9. A portable motorcycle lifting device comprising: an inner lifting structure having a first forward and first rearward end; an outer lifting structure having a second forward and second rearward end; an upper cradle support having a third forward and third rearward end; an articulated lifting system integrated within said inner and outer lifting structures, wherein said inner lifting structure is generally positioned within said outer lifting structure and both lifting structures are connected by a common fulcrum positioned approximately in the middle of each lifting structure, the articulated lifting system comprising, a hydraulic bottle jack having a base pivotally mounted about a jacking device axle mounted transversely in a rearward region of said inner lifting structure, and a displacement arm which is adapted to be hydraulically pushed from said bottle jack, said displacement arm having a distal end; a lifting arm rotatably attached about said fulcrum, said lifting arm having a forward portion and a rearward portion, said rearward portion pivotally attached to said distal end of said displacement arm; and a forward linkage arm having one end pivotally attached to said forward portion of said lifting arm, and another end pivotally attached to said second_forward end of said outer lifting structure; wherein said second rearward end of said inner lifting structure is rotatably and slidably attached to said third rearward end of said upper support cradle, wherein said first forward end of said outer lifting structure is rotatably attached to said third forward end of said upper cradle support, wherein said articulated lifting system may be operated to raise said upper cradle support from a non-deployed position to a fully deployed position. 10. The lifting device according to claim 9, wherein said bottle jack is operated by a remote jacking system comprising a jacking arm attached to a jacking arm axle housing, a jacking leverage arm connected to said axle housing, and a jacking linkage arm having one arm articulately linked to the leverage arm and another end articulately linked to a jacking input of said hydraulic bottle jack. 11. The lifting device according to claim 9, further comprising a remote pressure release feature including a cable having a flexible inner turning element with one end connected to a bleed valve on said hydraulic bottle jack, and another end attached to a first end of an inner rotatable rod rotatably housed in a longitudinal housing, and a thumb wheel knob attached to a second end of the inner rotatable rod. 12. The lifting device according to claim 11, said remote pressure release feature comprising an articulated arm comprising at least two segments having a swivel joint therebetween each of said at least two segments, said articulated arm having a first end swivel attached to a bleed valve on said hydraulic bottle jack, and a thumb wheel knob attached to a second end of said articulated arm. 13. The lifting device according to claim 1, wherein when said motorcycle lifting device is in the non-deployed position, said articulated lifting system is positioned in a generally straight configuration within said inner and outer lifting structure. 14. The lifting device according to claim 1, further comprising a removable rear support section rotatably attached to said rearward end of said upper cradle support, said rear support section having a vertically oriented lower ramp support formed from a tubular member having a substantial bend forming an elbow which is adapted to contact the ground for support when a motorcycle is being loaded onto said lifting device. 15. The lifting device according to claim 14, further comprising an upper support plate positioned atop and fixedly attached to said removable rear support section. 16. The lifting device according to claim 14, wherein said rear support section may be folded upwards and positioned next to said upper cradle support when said lifting device stored in a vertical position. 17. The lifting device according to claim 1, further comprising a bracing member which is hingedly attached to an upper forward end of said inner lifting member and which may be engaged with one of a series of catches positioned on an upper forward portion of said outer lifting structure. 18. The lifting device according to claim 14, further comprising a removable ramp adapted to be attached to a rearward portion of the rear support section and further adapted to contact the ground. 19. The lifting device according to claim 18, said removable ramp comprising a tubular frame structure having a generally rectangular and planar shape, and a ramp hook attached to an end of said ramp for attachment to said rear support section. 20. The lifting device according to claim 1, further comprising a removable and positionable auxiliary jacking device adapted to fit within said upper cradle support. 21. A portable motorcycle lifting device comprising: a first lifting structure having a first forward and first rearward end; a second lifting structure having a second forward and second rearward end, the second lifting structure connected to the first lifting structure by a common fulcrum positioned approximately in the middle of each lifting structure; an upper cradle support having a third forward and third rearward end, the second rearward end being rotatably and slidably attached to the third rearward end, and the first forward end being rotatably attached to the third forward end; and an articulated lifting system integrated with said first and second lifting structures, the articulated lifting system comprising: a jack connected to the first rearward end of the first lifting structure; a lifting arm rotatably attached about the fulcrum, the lifting arm having a forward portion and a rearward portion, the rearward portion of the lifting arm rotatably connected to the jack; and a forward linkage arm having one end pivotally attached to forward portion of the lifting arm and another end pivotally attached to the second forward end of the second lifting structure; wherein extension of the jack draws the second rearward end closer to the first forward end to raise the upper cradle support from a non-deployed position to a fully deployed position.
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이 특허에 인용된 특허 (18)
Williams, Richard, Electric motorcycle lift for motor homes.
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