Land vehicles: wheels and axles – Wheel – Compression wheel
Patent
1984-03-12
1986-06-03
Scherbel, David A.
Land vehicles: wheels and axles
Wheel
Compression wheel
1523793, 152380, B60B 502
Patent
active
045925950
ABSTRACT:
A wheel construction especially adapted for use with a shopping cart and the like, including a wheel of a first relatively inexpensive material comprising a central hub defining a central opening providing an axis of rotation for the wheel, a rim, and web means connecting the rim and hub. The rim defines an outermost peripheral surface and adjoining surfaces merging into the peripheral surface. Further said rim defines a plurality of circumferentially spaced notches, each of the notches extending generally laterally of the rim and inwardly of the peripheral surface toward said hub, and providing undercuts. A generally U-shaped tread member of a second material, such as relatively more expensive polyurethane rubber, is molded to the rim. The tread member defines an outer tread surface, an inner tread surface confronting the peripheral surface, a plurality of projections substantially corresponding in shape to the notches to interlock in the notches, and a pair of lateral surfaces confronting the adjoining surfaces. The notches may be U-shaped and may extend across the entire width of the peripheral surface. The central opening includes sockets on each side of the hub, each receiving a resilient socket liner, each of which receives a bearing assembly.
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patent: 4358162 (1982-11-01), Schneider
Scherbel David A.
UNR Lighting
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