초록 ▼

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 bo

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.

대표청구항 ▼

1. A portable vehicle lift for lifting a vehicle having a wheel assembly including awheel rim, said lift comprising;a vertically-elongated stand;a carriage supported on said stand;said carriage vertically movable relative to said stand;said carriage having a carriage front;a wheel engagement pad on

1. A portable vehicle lift for lifting a vehicle having a wheel assembly including awheel rim, said lift comprising;a vertically-elongated stand;a carriage supported on said stand;said carriage vertically movable relative to said stand;said carriage having a carriage front;a wheel engagement pad on said carriage front;at least two elongated cradle members extending outwardly from said carriage front;said engagement pad above said at least two cradle members; anda lifting mechanism for raising and lowering said carriage relative to said stand.2. The portable vehicle lift of claim 1 further comprising:said stand having a stand front and a stand bottom;said stand having a base attached to said stand bottom;a wheel receiving space adjacent said stand front; andsaid base not encroaching said wheel receiving space.3. The portable vehicle lift of claim 2 further comprising:said at least two cradle members each connected to said carriage by a carriage arm; andeach said carriage arm angularly adjustable in relation to said carriage.4. The portable vehicle lift of claim 3 further comprising:each said carriage arm hingedly connected to said carriage at a carriage arm first end; andeach said carriage arm having a cradle member extending from a carriage arm second end.5. The portable vehicle lift of claim 1 further comprising:said carriage having carriage sides and a backing bar;each said carriage arm having a movement path; andsaid backing bar extending outwardly from said carriage normal to said carriage sides and immediately adjacent said movement paths.6. The portable vehicle lift of claim 5 further comprising:a plurality of bar holes provided in said backing bar; anda plurality of backing bar pins, each bar pin insertable through a determined bar hole into said movement path of a corresponding said carriage arm.7. The portable vehicle lift of claim 1 further comprising:said carriage including an elongated vertical cavity;said carriage positioned on said stand with said stand accessing said elongated cavity;said carriage slideable on said stand;said carriage having a lowered position;said stand having a lower end; andsaid cradle member positioned adjacent said lower end of said stand when said carriage is in said lowered position.8. The portable vehicle lift of claim 7 further comprising:said stand including a hydraulic drive;said hydraulic drive comprising a vertically-oriented hydraulic cylinder and a drive rod; andsaid drive rod operable to raise and lower said carriage.9. The portable vehicle lift of claim 1 further comprising:said stand having a stand back;said stand having a stand base; andat least two wheels on said stand base proximate said stand back.10. The portable vehicle lift of claim 1 further comprising:said carriage having a lowered position;each said cradle member of said sufficient length to a variety of wheel assembly widths;said stand having a lower end; andeach said cradle member positioned adjacent said lower end of said stand when said carriage is in said lowered position.11. The portable vehicle lift of claim 1 further comprising:said lifting mechanism comprising a screw jack.12. The portable vehicle lift of claim 1 further comprising:said lifting mechanism comprising a scissors jack.13. The portable vehicle lift of claim 1 further comprising:said lifting mechanism comprising a pawl and ratchet device.14. A portable vehicle lift for lifting a vehicle having a wheel assembly including a wheel rim, said lift comprising:a vertically-elongated stand and a carriage said vertically-elongated stand having a front;said vertically-elongated stand centered about a single axis;said carriage supported on said stand;said carriage vertically movable relative to said stand;said carriage having a carriage front said front of said vertically-elongated stand not extending beyond said carriage front;an engagement pad and a wheel-engaging adapter positioned at said carriage front;said wheel-engagement adapter engagable with said wheel assembly to lift said wheel assembly;said stand and said carriage operable between a lowered position and a raised position;said lowered position wherein said wheel-engaging adapter proximate a surface; andsaid raised position wherein said wheel-engaging adapter distal said surface.15. The portable vehicle lift of claim 14 further comprising:said engagement pad extending outwardly a pad distance from said carriage front;said stand having a stand front;said stand having a base for distributing said lifted weight on said surface;said base extending outwardly from said stand front a base distance; andsaid base distance not significantly exceeding said pad distance.16. The portable vehicle lift of claim 14 further comprising:said wheel-engaging adapter having at least two cradle members.17. The portable vehicle lift of claim 16 further comprising:each said cradle member extending outwardly from said carriage front.18. The portable vehicle lift of claim 14 further comprising:said carriage having two sides adjacent and perpendicular to said front;said wheel-engaging adapter comprising two arms;said arms attached to respective said sides; andeach said arm having a cradle member extending outwardly from said carriage front.19. The portable vehicle lift of claim 18 wherein:said arms hingedly attached to said carriage at attachment points.20. The portable vehicle lift of claim 19 further comprising:a carriage back opposite said carriage front; anda backing bar attached to said carriage at said carriage back intermediate said attachment points and said base, and extending outwardly from said sides, perpendicular to said stand.21. The portable vehicle lift of claim 20 further comprising:said backing bar having a pin hole at each end distal said stand providing passageway through said backing bar from said carriage back to said carriage front; anda pin insertable through and securable in each said pin hole to selectively restrict movement of said arms about said hinges.22. The portable vehicle lift of claim 14 further comprising:said stand having a vertical lifting mechanism.23. The portable vehicle lift of claim 22 further comprising:said stand and said carriage having a combined length; andsaid vertical lifting mechanism selectively operational to vary said combined length.24. The portable vehicle lift of claim 22 wherein said vertical lifting mechanism comprising:a hydraulic drive cylinder.25. The portable vehicle lift of claim 22 wherein said vertical lifting mechanism comprising:a screw jack.26. The portable vehicle lift of claim 22 wherein said vertical lifting mechanism comprising:a scissors jack.27. The portable vehicle lift of claim 22 wherein said vertical lifting mechanism comprising:a pawl and ratchet device.28. The portable vehicle lift of claim 14 wherein said wheel-engaging adapter comprising:at least two cradle members.