Bumper mounted anti-tip stabilizers for chair-mounting vehicles

Details Bumper mounted anti-tip stabilizers for chair-mounting vehicles Bumper mounted anti-tip stabilizers for chair-mounting vehicles

1993-06-14

1994-05-31

Focarino, Margaret A.

Land vehicles

Wheeled

Occupant propelled type

280755, B60R 2113

Patent

active

053163281

ABSTRACT:
A vehicle for physically disadvantaged persons and others desiring assistance which carries a chair at a relatively high level, is supported by wheels on front and rear axles. It has a rear bumper, supported by the frame and consisting of side attaching elements connected by a bumper cross element. Pivotally connected to each bumper side element is an anti-tip wheel support leg which mounts an anti-tip wheel having an axle connected to the lower end of each leg such that the legs are gravity biased to swing in toward the bumper. The wheel-supporting legs support the anti-tip wheels at a predetermined vertical distance above the ground when the frame is traveling over level ground, and are operative to automatically swing rearwardly away from the rear wheels to cause the anti-tip wheels to engage the ground and stabilize the vehicle from further tilting, when the frame tilts upwardly a predetermined amount from front to rear.

REFERENCES:
patent: 1492487 (1924-04-01), Stokes
patent: 2629611 (1953-02-01), Covington
patent: 4284286 (1981-08-01), Lewallen
patent: 4522320 (1985-06-01), Hannappel
patent: 4772037 (1988-09-01), Jones
patent: 4886294 (1989-12-01), Nahachewski
patent: 5071150 (1991-12-01), Conrad
patent: 5121806 (1992-06-01), Johnson
patent: 5181733 (1993-01-01), Tague
patent: 5207439 (1993-05-01), Mortenson

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