Molded shock-absorbing wheel assembly

Details Molded shock-absorbing wheel assembly Molded shock-absorbing wheel assembly

1984-03-07

1985-08-20

Scherbel, David A.

Resilient tires and wheels

Spring wheels

Deformable ground engaging part

152 48, 152323, 301 63PW, 264263, 264273, B60B 502, B60B 912, B60C 708

Patent

active

045358273

ABSTRACT:
A shock-absorbing wheel assembly having an annular cast iron core member disposed concentrically about an annular bearing seat in spaced relation thereto, with the core member having passageways extending radially therethrough. A continuous integral mass of moldably polyurethane is provided to cover the exterior surface of the core member with a predetermined thickness, to fill the passageways in the core member, and to fill the spacing between the core member and the bearing seat. A method of forming the wheel assembly is provided, which includes locating the core member and bearing seat within a cylindrical mold cavity, permitting flowable polyurethane to flow into the interconnected spacings and passageways, and allowing the polyurethane to cure.

REFERENCES:
patent: 2791256 (1957-05-01), Sinclair
patent: 2836982 (1958-06-01), Voss et al.
patent: 3666322 (1972-05-01), Pickron
patent: 3843202 (1974-10-01), Lacerte
patent: 4164251 (1979-08-01), Chung

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