Land vehicles – Wheeled – Extensible
Patent
1976-12-08
1978-05-02
Stoner, Jr., Bruce H.
Land vehicles
Wheeled
Extensible
190 18A, 280 40, B62B 302
Patent
active
040871029
ABSTRACT:
A support pallet carrying at opposite ends thereof, jointly extensible tow-handle and pair of rollers, which pallet can form original-construction false bottom of luggage container such as suit case, or as free form can be extended to form hand cart for manually moving one or several containers. Operating mechanism comprises parallel pair of oppositely (90.degree.) twisted, flat-faced rigid ribbons each simultaneously rotatable on its longitudinal axis and lengthwise forming a helical slide track. Each track is transversely engaged jointly by a bifurcate-ended, slide yoke forming a distal cross arm of a lengthwise displaceable tow handle. Distal end of each track-ribbon is attached to a ground-support roller, which rollers are jointly movable by transverse pivoting between housed and functional positions effected by longitudinal movement of cross-arm-yoke and tow handle. Independently carryable container or alternately flat-collapsed pallet unit, upon conversion to pull cart form, can carry multiple containers or objects stacked or bound to upper transverse face. Retraction of rollers and pull handle makes unit storable like ordinary rectangular box.
REFERENCES:
patent: 2581417 (1952-01-01), Jones
patent: 2602675 (1952-07-01), Forman
patent: 3842953 (1974-10-01), Royet
Forman Michael J.
Johnson Howard L.
Stoner Jr. Bruce H.
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