Wayside wheelchair lift

Details Wayside wheelchair lift Wayside wheelchair lift

1982-06-25

1985-02-19

Rolla, Joseph J.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

414921, 187 872, B66B 920

Patent

active

044999704

ABSTRACT:
A lifting platform for the handicapped for a transit system utilizes a pair of side support members mounted on a fixed base support at ground level in which the platform is located between the side supports and raised and lowered by a set of rotating actuating arms interconnected by a chain drive and sprocket wheel combination. A sprocket wheel and idler shaft combination interconnect the rotary actuating arms associated with each side support member and maintain the support platform at all times in a horizontal position while being raised and lowered. The rotating actuating arms rotate about an axis above ground level and intermediate between the high and low position of the platform. Final height adjustment is determined by the amount of rotation beyond the vertical by the rotating actuating arms.

REFERENCES:
patent: 2201147 (1940-05-01), Bary et al.
patent: 3229788 (1966-01-01), Booth
patent: 3516559 (1970-06-01), Walter
patent: 3737009 (1973-06-01), Stoddard
patent: 3966022 (1976-06-01), Cheney
patent: 4046226 (1977-09-01), Flinchbaugh
patent: 4141089 (1979-02-01), Krumbeck
patent: 4273498 (1981-06-01), Dickhart et al.

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