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This tire lift caddy has a rectangular frame supported on casters, and a pair of rollers mounted therein across the frame. The rollers are guided along a respective pair of inclined slots in the side of the frame. A threaded rod extends along a length of the frame. A pair of push bar assemblies are

This tire lift caddy has a rectangular frame supported on casters, and a pair of rollers mounted therein across the frame. The rollers are guided along a respective pair of inclined slots in the side of the frame. A threaded rod extends along a length of the frame. A pair of push bar assemblies are mounted to the threaded rod and to the axles of said rollers for moving the rollers in unison along the slots upon a rotation of the threaded rod. The threaded rod has a left-hand thread thereon and a cylindrical handle on a working end thereof. The cylindrical handle can be worked with the palm of the hand, or finely adjusted with the fingers to raise the rollers to a desired level. The rollers have a central groove in surfaces thereof for nesting the threaded rod therein when the rollers are in their lowermost positions.

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1. A tire lift caddy comprising: a rectangular frame supported on casters;said rectangular frame having inclined slots in sides thereof;a pair of spaced-apart rollers mounted in said rectangular frame across a width of said rectangular frame;said rollers having a respective axle therein, each of sai

1. A tire lift caddy comprising: a rectangular frame supported on casters;said rectangular frame having inclined slots in sides thereof;a pair of spaced-apart rollers mounted in said rectangular frame across a width of said rectangular frame;said rollers having a respective axle therein, each of said axles being guided along a respective pair of said inclined slots;a threaded rod extending along a length of said rectangular frame;a pair of push bar assemblies mounted to said threaded rod and to said axles of said rollers for moving said rollers in unison along said slots upon a rotation of said threaded rod. 2. The tire lift caddy as claimed in claim 1, further comprising a cylindrical handle on a working end of said threaded rod. 3. The tire lift caddy as claimed in claim 2, wherein said threaded rod has an ACME left-hand 8 thread-per-inch thread pitch thereon. 4. The tire lift caddy as claimed in claim 2, wherein said cylindrical handle extends horizontally and has a length of about 4-5 inch. 5. The tire lift caddy as claimed in claim 4, wherein said cylindrical handle has a diameter of about 1.5 to 1.75 inches, and said cylindrical handle being inclined upward on its working end for increasing a hand-knuckle clearance between said cylindrical handle and a floor surface. 6. The tire lift caddy as claimed in claim 1, further having a carrying handle on a side of said rectangular frame. 7. The tire lift caddy as claimed in claim 1, wherein each of said push bar assembly comprises a threaded block mounted to said threaded rod and a pair of Z-shaped linkage members pivotally mounted to said threaded block and to said axle of a respective one of said rollers. 8. The tire lift caddy as claimed in claim 1, wherein a total height thereof is 3-4 inch. 9. The tire lift caddy as claimed in claim 1, wherein each of said rollers has a central groove in a surface thereof for nesting said threaded rod therein when said rollers are in their lowermost positions. 10. The tire lift caddy as claimed in claim 1, wherein said rollers are mounted on bearings on a respective one of said axle. 11. A tire lift caddy comprising: a rectangular frame supported on casters;said rectangular frame having inclined slots in the sides thereof;a pair of spaced-apart rollers mounted in said rectangular frame across a width of said rectangular frame;said rollers having a respective axle therein, each of said axles being guided along a respective pair of said inclined slots;a threaded rod extending along a length of said rectangular frame;a pair of push bar assemblies mounted to said threaded rod and to said axles of said rollers for moving said rollers in unison along said slots upon a rotation of said threaded rod;said threaded rod has an ACME left-hand 8 thread-per-inch thread pitch thereon and a cylindrical handle on an working end of said threaded rod. 12. The tire lift caddy as claimed in claim 11 wherein said cylindrical handle extends horizontally and has a length of about 4-5 inch and a diameter of about 1.5 to 1.75 inches. 13. The tire lift caddy as claimed in claim 11, further having a flip-down carrying handle on each side of said rectangular frame. 14. The tire lift caddy as claimed in claim 11, wherein each of said push bar assembly comprises a threaded block mounted to said threaded rod and a pair of Z-shaped linkage members pivotally mounted to said threaded block and to said axle of a respective one of said rollers. 15. The tire lift caddy as claimed in claim 11, wherein a total height thereof is 3-4 inch. 16. The tire lift caddy as claimed in claim 11, wherein each of said rollers is mounted on bearings on one of said axle, and has a central groove in a surface thereof for nesting said threaded rod therein when said rollers are in their lowermost positions. 17. A tire lift caddy comprising: a rectangular frame supported on casters;said rectangular frame having inclined slots in the sides thereof;a pair of spaced-apart rollers mounted in said rectangular frame across a width of said rectangular frame;said rollers having a respective axle therein, each of said axles being guided along a respective pair of said inclined slots; each of said rollers being mounted on bearings on one of said axles;a threaded rod extending along a length of said rectangular frame;a pair of push bar assemblies mounted to said threaded rod and to said axles of said rollers for moving said rollers in unison along said slots upon a rotation of said threaded rod; each of said push bar assemblies comprising a threaded block mounted to said threaded rod and a pair of Z-shaped linkage members pivotally mounted to said threaded block and to said axle of a respective one of said rollers;said threaded rod has an ACME left-hand 8 thread-per-inch thread pitch thereon and a cylindrical handle on an working end of said threaded rod;said cylindrical handle extends horizontally and has a length of about 4-5 inch and a diameter of about 1.5 to 1.75 inches;each of said rollers having a central groove in a surface thereof for nesting said threaded rod therein when said rollers are in their lowermost positions. 18. The tire lift caddy as claimed in claim 17, further having a carrying handle on each side of said rectangular frame.