Foldable bicycle tire having flexible beads

Details Foldable bicycle tire having flexible beads Foldable bicycle tire having flexible beads

1981-06-02

1983-03-29

Kimlin, Edward C.

Resilient tires and wheels

Tires, resilient

Patches

152359, 156136, 245 15, 57241, 57902, B60C 1504, B29H 1732

Patent

active

043780423

ABSTRACT:
An improved bicycle tire which can be folded for storage and transportation while maintaining the same running properties as a conventional tire. A plurality of bead cores made of a cord tensile member embedded in the bead section of the tire are provided by winding three to five turns of a cord tensile member having a low elongation ratio and high strength and which has been twisted one to two turns/10 cm in such a manner that the start and finish ends of the bead core overlap one another by 60 to 150 mm. The bead core preferably has a cut elongation of 5% or less and the strength of 300 kg/core.

REFERENCES:
patent: 3446003 (1969-05-01), Kolek et al.
patent: 4022009 (1977-05-01), Van Assendelft
patent: 4098316 (1978-07-01), Carvalho et al.
patent: 4293018 (1981-10-01), Dubois
patent: 4320791 (1982-03-01), Fujii et al.

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