Document Type and Number:
Japanese Patent JPS5511521
Kind Code:
B1
Abstract:
The hub shell and rim of a bicycle wheel are connected by a spoke system of thermoplastic synthetic resin composition forming a unitary body with the rim. The spoke system may consist either of two conical discs or two conical sets of four individual spokes defining therebetween gaps axially aligned with the spokes of the other set. Flanges on the hub are embedded in the discs or spokes. The transmission of thermal energy generated by friction in a transmission or a brake within the hub to the plastic spoke system is impeded by air-filled recesses in the flanges or elsewhere radially between the hub and the spoke system, or by the use of small engaged contact faces on the hub and flange.
Application Number:
JP3856471A
Publication Date:
March 26, 1980
Filing Date:
June 02, 1971
Export Citation:
International Classes:
B60B1/00; B60B5/02; (IPC1-7): B60B5/02; B29F1/00; B60B27/00
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