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

摘要

A wheel for a wheelchair according to the present invention includes: an outer wheel 13 mounted on the inner periphery of a tire; an inner wheel 15 connected with a wheelchair frame 65 (concentric with the outer wheel 13 and positioned inside the outer wheel 13 ); a plurality of balls (rolling elements) 17 interposed between the outer wheel 13 and the inner wheel 15 , arranged with an interval between each other in a circumferential direction; and a plurality of retainers (interval-holding members) 18 for holding intervals between the rolling elements 17 . The retainer 18 is in a shape extending almost along a circumferential direction of the outer wheel 13 and the inner wheel 15 , and is provided between the balls 17 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.