Chassis for invalid wheelchairs

Details Chassis for invalid wheelchairs Chassis for invalid wheelchairs

1982-04-30

1984-03-13

Pekar, John A.

Land vehicles

Wheeled

Occupant propelled type

180DIG3, 297DIG4, B62M 114

Patent

active

044363206

ABSTRACT:
The chassis features left and right lateral frames rotatably supporting at their front and rear ends front and rear wheels. The rear wheels are pivoted for steering. First and second connecting members arranged in a cross and lying in a horizontal plane extend between and are attached to the lateral frames to confine the movements of the lateral frames into predominantly parallel planes. A third connecting member extends horizontally between and is attached to the lateral frames in a position spaced above the horizontal plane so that when the chassis is viewed from the side at the most only two frame mounting points fall on a straight line. Elastic relative movement between the left and right lateral frames is achieved as a result of the inherent elasticity of the connecting members and in addition resilient mountings at the attachment points of the connecting members to the lateral frames.

REFERENCES:
patent: 565443 (1896-08-01), Eells
patent: 636155 (1899-10-01), Mackay
patent: 4030769 (1977-06-01), Peng et al.
patent: 4360213 (1982-11-01), Rudwick et al.

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