Stair-climbing wheelchair carrier with crawlers

Details Stair-climbing wheelchair carrier with crawlers Stair-climbing wheelchair carrier with crawlers

1988-10-19

1990-02-06

Hill, Mitchell J.

Motor vehicles

Special driving device

Stepper

180907, 280 522, 280 9, 280DIG10, B62B 502, B62D 5504

Patent

active

048982563

ABSTRACT:
A crawler unit for coupling to a wheelchair, especially for climbing stairs, comprises an undercarriage having power-driven tracks and an adapter for securing the wheelchair in a rearwardly tilted travelling position. In order to enable the wheelchair user to couple and decouple and maneuver the wheelchair by himself, the adapter which includes a male coupling member for mating engagement with a complementary female coupling member mounted on the wheelchair is connected to the crawler unit through lifting means adapted to be operated by the wheelchair user via actuating or control elements for selectively lifting the wheelchair relative to the crawler unit and lifting the crawler unit while the wheels of the wheelchair remain on the ground, such operation being possible both in position of the wheelchair.

REFERENCES:
patent: 4771839 (1988-09-01), Misawa

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