Hand truck

Details Hand truck Hand truck

1976-05-05

1977-07-05

Peters, Jr., Joseph F.

Land vehicles

Step or abutment ascending type vehicle

With endless track

280 472, B62B 502

Patent

active

040335950

ABSTRACT:
The main frame of a hand truck is formed with support members on its rear lower side portions which extend angularly upwardly from the bottom thereof. Each of the support members has rollers on the upper and lower ends thereof which provide a track for an endless belt. A pair of movable handles slidably mounted on the sides of the frames are respectively connected to belt grippers on the endless belts. To move a loaded hand truck up a step, the frame is tilted back such that the endless belts contact the corner of a step. By pulling up on the movable handles the operator lifts the truck up the step with a mechanical advantage of two.

REFERENCES:
patent: 1273693 (1918-07-01), Tucker
patent: 2793868 (1957-05-01), Fuglie
patent: 2823921 (1958-02-01), Lagaard
patent: 3064990 (1962-11-01), Salvucci
patent: 3092200 (1963-06-01), Chambers

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