One piece wheelchair wheel

Land vehicles: wheels and axles – Wheel – Tension wheel; e.g. – spoke

Patent

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Details

301104, 152323, B60B 102

Patent

active

059443901

ABSTRACT:
A unitary wheel and tire assembly for a wheelchair having an axle that includes a wheel portion and a tire portion. The wheel portion is molded from a first material and has a hub for rotative mounting to the axle of the wheelchair, a plurality of spokes extending at their innermost ends radially outwardly from the hub, and a circumferential rim connecting the plurality of spokes at their outermost ends. The circumferential rim has a radially outwardly opening annular channel extending completely therearound with a plurality of spaced-apart tabs extending radially outwardly therefrom with throughbores therethrough. The tire portion is molded from a second material onto the circumferential rim of the wheel portion, and when the second material is molten, it enters and completely fills and engages the radially outwardly opening annular channel in the circumferential rim and enters and completely fills and engages the throughbores in the plurality of spaced-apart tabs in the radially outwardly opening annular channel in the circumferential rim and completely engages and encases the plurality of spaced-apart tabs in the radially outwardly opening annular channel in the circumferential rim, and when the second material has hardened, the tire portion becomes unitary and inseparable from the wheel portion without wheel structure destruction.

REFERENCES:
patent: 4444435 (1984-04-01), Honsa
patent: 4489955 (1984-12-01), Hamilton
patent: 4511184 (1985-04-01), Schauf et al.
patent: 4593929 (1986-06-01), Williams
patent: 4770432 (1988-09-01), Wagner
patent: 4917395 (1990-04-01), Gabriele
patent: 4926777 (1990-05-01), Davis, Jr.
patent: 4989920 (1991-02-01), Kauzlarich et al.
patent: 5028065 (1991-07-01), Danecker
patent: 5101536 (1992-04-01), Gabriele
patent: 5556120 (1996-09-01), Davis
patent: 5564793 (1996-10-01), Whiteford
patent: 5603520 (1997-02-01), Pearce

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