Wheelchair, wheel for wheelchair, and method of producing...

Details Wheelchair, wheel for wheelchair, and method of producing... Wheelchair, wheel for wheelchair, and method of producing...

2008-07-22

2008-07-22

Bellinger, Jason R (Department: 3617)

Resilient tires and wheels

Spring wheels

Spring encircling rigid annulus

C152S053000

Reexamination Certificate

active

10557278

ABSTRACT:
A wheel for a wheelchair according to the present invention includes: an outer wheel or ring mounted on the inner periphery of a tire; an inner ring connected with a wheelchair frame (concentric with the outer ring and positioned inside the outer ring); a plurality of rolling elements interposed between the outer ring and the inner ring, arranged with an interval between each other in a circumferential direction; and a plurality of spacers (retainers or interval-holding members) for holding intervals between the rolling elements. Each spacer is in a shape extending along a circumferential direction of the outer ring and the inner ring, and is provided between the rolling elements respectively. The wheel does not have a hub and spokes, and the inner peripheral side does not rotate, and further the wheel weight is light. The wheelchair of the present invention includes the wheel for a wheelchair.

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