Wheelchair

Details Wheelchair Wheelchair

1980-02-12

1982-07-27

Pekar, John A.

Motor vehicles

Compensating devices

180DIG3, B62D 504

Patent

active

043412785

ABSTRACT:
An electrically driven wheelchair having steerable rear wheels controllable by means of a joystick control operating an electromechanical steering mechanism including a control circuit.
The electrical control circuit includes a voltage divider which receives a voltage determined according to the travelling speed of the wheelchair to enable the turning circle of the steering mechanism to be adjusted in relation to the travelling speed, so that at high speeds a large turning circle only is available while at low speeds a small turning circle is allowed, thereby minimizing the possibility of tipping the wheelchair over by turning too sharply at high speed.

REFERENCES:
patent: 2586273 (1952-02-01), Steven
patent: 3022850 (1962-02-01), Bidwell et al.
patent: 3566986 (1971-03-01), Udden

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