Wheelchair

Details Wheelchair Wheelchair

1992-05-07

1993-08-31

Mitchell, David M.

Land vehicles

Wheeled

Extensible

2802501, 297325, A61G 502

Patent

active

052402770

ABSTRACT:
A wheelchair comprises a base frame section with four wheels and a seat frame section for supporting a seat and a back rest. At both sides of the wheelchair front and back rods are pivotably connected with the base frame section and the seat frame section, wherein an adjusting means is mounted between both said frame sections for adjusting the seat angle between minimum and maximum values. The front and back rods are directed obliquely towards each other at the minimum seat angle. At the minimum seat angle the back rods enclose an angle with the vertical which is substantially greater than the angle enclosed between the front rods and the vertical, wherein the front rods pass the vertical when adjusting the seat angle from the minimum value to the maximum value.

REFERENCES:
patent: 4555121 (1985-11-01), Lockard
patent: 4614246 (1986-09-01), Masse
patent: 5011175 (1991-04-01), Nicholson et al.

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