Detachable propulsive device for wheelchair

Details Detachable propulsive device for wheelchair Detachable propulsive device for wheelchair

1996-08-15

1998-10-27

DePumpo, Daniel G.

Motor vehicles

Additional traction wheel

180 12, 180 16, 180211, 180907, B60K 100

Patent

active

058266704

ABSTRACT:
A detachable propulsive device for a wheelchair includes a longitudinal skeleton frame, a driving unit attached to the front of the skeleton frame, a handle for steering the propulsive device, dimensions adjusting unit, and auxiliary wheels. The dimensions adjusting unit carries four retaining clips and allows to adjust distances between these clips lengthwise and widthwise, so that the clips are capable of engaging and holding side members of the bottom frame of the wheelchair of any desired length and width. The length adjusting mechanism of the dimensions adjusting unit includes a system of telescopically movable hollow tubes with U-shaped cross sliding rails secured to them, while the width adjusting mechanism includes sliding arms carrying the retaining clips on their outer ends and sliding longitudinally along the U-shaped cross sliding rails in the lateral direction. The auxiliary wheels at the rear of the propulsive device are lifted from the ground once the device has been attached to the wheelchair.

REFERENCES:
patent: 2495573 (1950-01-01), Duke
patent: 2978053 (1961-04-01), Schmidt
patent: 3336042 (1967-08-01), Southhall
patent: 3349862 (1967-10-01), Shirey
patent: 3912032 (1975-10-01), Benz et al.
patent: 3945449 (1976-03-01), Ostrow
patent: 5016720 (1991-05-01), Coker
patent: 5050695 (1991-09-01), Kleinwolterink
patent: 5135063 (1992-08-01), Kropf
patent: 5494126 (1996-02-01), Meeker

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