Land vehicles: wheels and axles – Wheel – Skate wheel
Patent
1985-12-16
1987-05-19
Scherbel, David A.
Land vehicles: wheels and axles
Wheel
Skate wheel
301 63PW, 29235, 29450, B60B 502, B60C 100
Patent
active
046662154
ABSTRACT:
A wheel assembly, and a method and apparatus for fabricating the same, are disclosed. The wheel assembly includes an annular bearing hub and an annular tread layer of thermoplastic elastomeric material, such as a copolyester polymer elastomer material, about the bearing hub. The tread layer has an initial free radial thickness. The material is such that upon being radially compressed at least thirty percent of its initial radial thickness the material will retain a substantial portion of the thickness reduction after being compressed. The method and apparatus include applying a radial force by means of a cone-shaped wedge member from within the tread layer while the outer periphery of the tread layer is radially contained, the radially applied force being sufficient to compress the tread layer at least thirty percent of its initial radial thickness. The bearing hub is moved axially into the compressed annular tread layer immediately behind the cone-shaped wedge member.
REFERENCES:
patent: 2047976 (1936-07-01), Lord
patent: 2100542 (1937-11-01), Grange et al.
patent: 3073016 (1963-01-01), Drake
patent: 4198037 (1980-05-01), Anderson
patent: 4535827 (1985-08-01), Seaford
patent: 4566678 (1986-01-01), Anderson
Miner Enterprises Inc.
Scherbel David A.
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