Foldable wheelchair

Details Foldable wheelchair Foldable wheelchair

1994-11-22

1996-10-29

Johnson, Brian L.

Land vehicles

Wheeled

Extensible

280647, 280650, 280 4314, 280 4324, 280767, 2802501, 297 44, 297338, B62B 706, B62M 114

Patent

active

055689337

ABSTRACT:
A wheelchair is made up of a pair of parallel main frames connected to each other on the rear side via a detachable back supporter and on the front side via footplates foldable along a center hinge extending in the longitudinal direction. Large wheels and a seat plate are detachably coupled to the main frames. The seat plate is changeable in level by leverage operation. After detachment of the large wheels, and unlocking of the back supporter, the wheelchair can approach very close to a user lying on a bed. When the large wheels are detached, the wheelchair can go through doors of ordinary sizes. By folding the foot plates together, the main frames can be put together side by side for convenience in transportation.

REFERENCES:
patent: 2783055 (1957-02-01), Michaud
patent: 3833256 (1974-09-01), Dehner
patent: 4500109 (1985-02-01), Volin
patent: 4648615 (1987-03-01), Volin
patent: 5137295 (1992-08-01), Peek
patent: 5201377 (1993-04-01), Wilson
patent: 5224731 (1993-07-01), Johnson
patent: 5244222 (1993-09-01), Benoit
patent: 5255934 (1993-10-01), Wilson
patent: 5437497 (1995-08-01), Hutson

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