Walking truck

Details Walking truck Walking truck

1993-07-21

1994-09-13

Focarino, Margaret A.

Motor vehicles

Special driving device

Stepper

180 86, 180 41, 280840, B62B 502

Patent

active

053460278

ABSTRACT:
A walking truck including a platform pivotably supported above a base frame, inner racks and outer racks bilaterally disposed below the base frame and coupled by transmission shafts and cranks, a first motor drive controlled to move the inner racks and the outer racks alternatively for going upstairs or downstairs, a second motor drive controlled by a pendulum and two micro switches to move a balance linkage in either direction for keeping the platform in balance as the walking truck goes upstairs or downstairs.

REFERENCES:
patent: 3034591 (1962-05-01), Bell
patent: 3760897 (1973-09-01), Reynolds
patent: 4566707 (1986-01-01), Nitzberg

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