Invention Grant
- Patent Title: Pneumatic tire
- Patent Title (中): 气动轮胎
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Application No.: US12863649Application Date: 2008-01-24
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Publication No.: US08490667B2Publication Date: 2013-07-23
- Inventor: Makoto Ishiyama , Masafumi Koide
- Applicant: Makoto Ishiyama , Masafumi Koide
- Applicant Address: JP Tokyo
- Assignee: Bridgestone Corporation
- Current Assignee: Bridgestone Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- International Application: PCT/JP2008/051006 WO 20080124
- International Announcement: WO2009/093325 WO 20090730
- Main IPC: B60C9/18
- IPC: B60C9/18 ; B60C9/20 ; B60C9/22

Abstract:
Driving stability and durability is efficiently improved.Since a protecting layer 43 embedded with reinforcing cords 41 is disposed between a tread 35 and a belt reinforcing layer 31, both of the protecting layer 43 and the belt reinforcing layer 31 decentrally bear a large bending force generated when a pneumatic tire 11 runs on a sharp projection or a difference in level. As a result, even if reinforcing elements 33 in the belt reinforcing layer 31 are extended by large tension due to fill internal pressure, increase of strain generated in the reinforcing elements 33 can be effectively suppressed.
Public/Granted literature
- US20100282391A1 PNEUMATIC TIRE Public/Granted day:2010-11-11
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