Wheelchairs

Details Wheelchairs Wheelchairs

1977-06-09

1978-11-14

Peters, Jr., Joseph F.

Motor vehicles

Steering by driving

Independently operable drive motors

180 65A, 180DIG3, B62D 1104

Patent

active

041251695

ABSTRACT:
A power assisted wheelchair has a pair of larger ground wheels with handwheels mounted thereon and a pair of smaller castor wheels carrying motors drivably coupled therewith. The handwheels are rotatable relative to their ground wheels against a spring bias and operate the castor wheel motors on the corresponding sides of the chair through respective switch mechanisms. Variations of this arrangement are possible to suit different ground wheel configurations, the motors can be energized in increasing manner, the motors can be disconnected when the castors turn rearwardly, and the motors can drive through freewheel mechanisms.

REFERENCES:
patent: 2798565 (1975-07-01), Rosenthal
patent: 3100547 (1963-08-01), Rosenthal
patent: 3100860 (1963-08-01), Rosenthal
patent: 4050533 (1977-09-01), Seamone

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