Abstract A central hub which may contain a bearing or a bushing has a central radial web with reinforcing spokes on each side of the web. The web terminates in an outer rim. An inner rim slightly spaced from the outer rim extends from each side of the web and defines annular cavities on each side of the web. At arcuately spaced intervals in the web between the rims are small perforations. A tire is molded about the outer rim and extends into the annular cavities between the outer and inner rim and through the perforations to form a mechanically integral structure with the web and rims. Additionally thread guard discs or covers may shroud the space between the hub where it protrudes axially beyond the web and the inner face of the inner rim. The covers may be supported either by the bearings in the central bearing apertures of the hub or from the outer faces of the hub itself.
Inventors
👤 David B. Agins
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-24 08:14
CPC Classifications
B; B60; B60B; B60B5/00; B60B5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
214 words
A wheel for mounting on a spindle axle and comprising a central hub, a bearing aperture through the hub, a radial web extending centrally of the hub, an outer rim extending concentric with a bearing aperture from each side of the web, an inner rim spaced from the outer rim and extending concentric with the bearing aperture from each side of the web; a molded tire tread covering the outer rim, a tire inner ring integral with the tread and filling the space between rims, and ring ties extending through the web at intervals and integral with the inner ring on each side of the web; said tire tread being of a polyurethane plastic and said rims and hub being of a polypropylene plastic; radial spokes arcuately spaced on each side of the web from the hub to the inner rim, the spokes on one side of said web being in a different transverse plane from a spoke in the opposite side of the web; a cover disc on each side of the wheel and covering substantially the space between the bearing aperture and the inner rim, and a bearing having inner and outer races in each end of the hub bearing aperture, said cover discs each being secured to an inner bearing race.
Claim 2
Dependent Claim
214 words
A wheel for mounting on a spindle axle and comprising a central hub, a bearing aperture through the hub, a radial web extending centrally of the hub, an outer rim extending concentric with a bearing aperture from each side of the web, an inner rim spaced from the outer rim and extending concentric with the bearing aperture from each side of the web; a molded tire tread covering the outer rim, a tire inner ring integral with the tread and filling the space between rims, and ring ties extending through the web at intervals and integral with the inner ring on each side of the web; said tire tread being of a polyurethane plastic and said rims and hub being of a polypropylene plastic; radial spokes arcuately spaced on each side of the web from the hub to the inner rim, the spokes on one side of said web being in a different transverse plane from a spoke in the opposite side of the web; a cover disc on each side of the wheel and covering substantially the space between the bearing aperture and the inner rim, and a bearing having inner and outer races in each end of the hub bearing aperture, said cover discs each being secured to an inner bearing race.