Shock absorber for a power wheelchair

Details Shock absorber for a power wheelchair Shock absorber for a power wheelchair

2005-01-25

2005-01-25

Ilan, Ruth (Department: 3616)

Land vehicles

Wheeled

Running gear

C280S124100, C180S907000

Reexamination Certificate

active

06845996

ABSTRACT:
A shock absorber is installed in a power wheelchair to absorb shocks transmitted from rear wheels of the power wheelchair. The shock absorber includes a bracket, a seat and a suspension device. The suspension device is installed between the bracket and the seat and includes two suspension springs. Each suspension spring has a different spring stiffness. The seat is pivotally connected to the bracket at a pivot point between the two suspension springs. Consequently, the suspension springs will balance absorbing shocks caused by bumps while the power wheelchair is moving.

REFERENCES:
patent: 2026909 (1936-01-01), Nallinger
patent: 4573703 (1986-03-01), Linger
patent: 5685555 (1997-11-01), McCormick et al.
patent: 5899475 (1999-05-01), Verhaeg et al.
patent: 6199647 (2001-03-01), Schaffner et al.
patent: 2002-301114 (2002-10-01), None

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