Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Reexamination Certificate
2004-06-08
2010-10-26
Fischer, Justin (Department: 1791)
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
C152S520000
Reexamination Certificate
active
07819156
ABSTRACT:
Disclosed is a tire/wheel assembly which, even in a case of forming a run-flat support member by processing a metal material high in breaking strength, realizes the forming without generating wrinkles and cracks. In the tire/wheel assembly, a run-flat support member is inserted into a cavity portion of a pneumatic tire mounted onto a rim, a run-flat support member being formed of an annular shell having an arched cross-section, and elastic rings attached to bent ends of the annular shell in an inner peripheral side thereof. In the tire/wheel assembly, while plural notches are provided in the bent ends along a circumferential direction thereof, a length Ln (mm) of the notches in the circumferential direction is set between 1.0 mm and 15.0 mm inclusive, and a ratio Ws/Wg of a width Ws (mm) of the bent ends of the annular shell to a thickness Wg (mm) of the elastic rings is set between 0.55 and 0.92 inclusive.
REFERENCES:
patent: 2384402 (1945-09-01), Schubert et. al.
patent: 6463974 (2002-10-01), Hellweg et al.
patent: 6843288 (2005-01-01), Seko et al.
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patent: 2003-341312 (2003-12-01), None
patent: 2004-058749 (2004-02-01), None
patent: 2004-075002 (2004-03-01), None
International Search Report, Aug. 24, 2004.
Fischer Justin
Greer Burns & Crain Ltd.
The Yokoyama Rubber Co., Ltd
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