Motorized wheel chair

Details Motorized wheel chair Motorized wheel chair

1985-03-08

1987-02-10

Pekar, John A.

Motor vehicles

Steering by driving

Combined with manual steering

180 74, B62D 1108

Patent

active

046417206

ABSTRACT:
A motorized wheel chair is provided comprising a chassis having two rear wheels and one front wheel mounted thereon. The front wheel is steerable by a handlebar. The rear wheels are driven by an electric motor, coupled to a gearbox, for reducing the speed of the wheel chair. The gearbox drives a friction drive assembly which is engageable with the rear wheels and also is coupled to the handlebar such that one of the rear wheels will be disengaged depending upon which direction the handlebar is turned. The drive is provided with a switch which cuts power to the device when a change in surface elevation of a desired amount is detected either in front of or behind the device. A second switch may be provided to stop the vehicle upon contact with a foreign object. A third switch may be activated remotely to stop the device. Also, the chassis is adjustable in length, such that as a child grows the device may be adjusted accordingly.

REFERENCES:
patent: 2836253 (1958-05-01), Lovell
patent: 3506080 (1970-04-01), Hott et al.
patent: 3513931 (1970-05-01), Warner et al.
patent: 3664450 (1972-05-01), Udden
patent: 4020918 (1977-05-01), Housekamp et al.

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