Automatic wheel chair brake

Details Automatic wheel chair brake Automatic wheel chair brake

1985-02-26

1986-11-18

Butler, Douglas C.

Brakes

Vehicle

188106R, 188109, 280242WC, 280289WC, 297DIG4, B60T 104

Patent

active

046230432

ABSTRACT:
An automatic wheelchair brake is provided which automatically locks both wheels when a patient attempts to rise from the wheelchair. While seated the patient manually operates a three-way lever brake with manually locked, manually unlocked and automatic positions. If the patient attempts to rise while the brake lever is in the manually unlocked position, the lever automatically returns to the automatic position and both wheels still lock automatically. After the patient has exited, the wheelchair may easily be moved by shifting the operating lever to the manual unlock position.

REFERENCES:
patent: 4268054 (1981-05-01), Twitchell et al.
patent: 4320818 (1982-03-01), Knoche
patent: 4350227 (1982-09-01), Knoche
patent: 4476964 (1984-10-01), Broman

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