Wheelchair and one-piece molded braking support wheel therefor

Details Wheelchair and one-piece molded braking support wheel therefor Wheelchair and one-piece molded braking support wheel therefor

A - Human Necessities

61

G

A61G 5/10 (2006.01) B62B 5/04 (2006.01)

Patent

CA 2528570

A molded braking and support wheel assembly for a multi-wheeled wheelchair for a handicapped person. The wheel assembly includes a braking support wheel molded as a single unit of plastic or plastic-like material having concentric components including a tire receiving rim, a wheel bearing and brake assembly receiving hub, and spaced wheel spokes substantially radially extending between the hub and rim. A ring or band-shaped metal brake drum is also molded as a unit into the hub, the brake drum having a generally cylindrical inner braking friction surface and plastic-interlocking outer surface features which permanently interlock with the plastic material when the braking support wheel is mold formed. The plastic-interlocking outer features are molded with the hub into a single unit with the support wheel to secure the brake drum from relative movement in the hub. The brake drum defines a generally cylindrical cavity for operatively receiving the brake assembly. The hub includes a wheel bearing cavity coaxial with said brake drum for receiving spaced wheel bearings positioned therein.

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