Invention Grant
US06318427B1 Tire system for motorcycles including annular tire core with radially inner groove
失效
摩托车轮胎系统，包括具有径向内凹槽的环形轮胎芯
- Patent Title: Tire system for motorcycles including annular tire core with radially inner groove
- Patent Title (中): 摩托车轮胎系统，包括具有径向内凹槽的环形轮胎芯
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Application No.: US09257948Application Date: 1999-02-26
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Publication No.: US06318427B1Publication Date: 2001-11-20
- Inventor: Kenichi Fujiwara , Takao Kuwahara
- Applicant: Kenichi Fujiwara , Takao Kuwahara
- Priority: JP10-052409 19980304
- Main IPC: B60C502
- IPC: B60C502
Abstract:
A tire system for motorcycles comprises a pneumatic tire having a cavity, an annular tire core made of an elastic closed-cell material disposed in the cavity and provided on the radially inside with a groove, and a pressure bag inserted in the groove, wherein: in a free state of the tire core not disposed in the cavity, the cross sectional area Sa of the tire core is in the range of from 3.1 to 4.8 times the cross sectional area Sb of the groove; and the total Sa+Sb of the cross sectional area Sa of the tire core and the cross sectional area Sb of the groove is in the range of from 1.0 to 1.3 times the cross sectional area Sc of the cavity.
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