Surelock wheelchair brakes

Details Surelock wheelchair brakes Surelock wheelchair brakes

1997-03-31

1998-09-01

Oberleitner, Robert

Brakes

Vehicle

188 31, 188 69, 2802501, 2803041, 745016, B60T 100, B62M 114

Patent

active

057997560

ABSTRACT:
A brake system for a wheelchair is disclosed. The brake may comprise two assemblies one for each of the wheels. Each brake comprises a mounting bracket adapted to be connected to a frame portion of a wheelchair, a handle pivotally attached at a pivot point to the mounting bracket, a cable having one end connected to the handle and another end connected to a pivot arm. The pivot arm is pivotally attached to one end of a cam rod. The rod is attached to another mounting bracket adapted to be connected to another frame portion of the wheelchair and has a latching mechanism connected to a portion of the rod and biased into engagement with a splined disc by a spring. The disc is adapted to be connected to a hub of the wheel chair. In use, when the occupant of the wheel chair pivots the handle past a certain rotary position with respect to the pivot point of the handle, either in a forward or rearward direction, the spring forces the latching mechanism into either a positive braking engagement with the disc, thereby locking the wheelchair against movement, or a released position in which the wheelchair is free to move.

REFERENCES:
patent: 2621523 (1952-12-01), Taylor
patent: 2966969 (1961-01-01), Morse
patent: 3316776 (1967-05-01), Schroter
patent: 3400606 (1968-09-01), Schroter
patent: 4671133 (1987-06-01), Yamada
patent: 4733755 (1988-03-01), Maning
patent: 4762332 (1988-08-01), Seol
patent: 5211414 (1993-05-01), Galumbeck
patent: 5365804 (1994-11-01), Downs et al.
patent: 5401094 (1995-03-01), Galumbeck
patent: 5685406 (1997-11-01), Crun et al.

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