发明申请
- 专利标题: Pneumatic Tire
- 专利标题(中): 气动轮胎
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申请号: US11792484申请日: 2005-12-08
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公开(公告)号: US20080105349A1公开(公告)日: 2008-05-08
- 发明人: Go Yoshida
- 申请人: Go Yoshida
- 申请人地址: JP Chuo-ku
- 专利权人: Bridgestone Corporation
- 当前专利权人: Bridgestone Corporation
- 当前专利权人地址: JP Chuo-ku
- 优先权: JP2004-357211 20041209
- 国际申请: PCT/JP05/22546 WO 20051208
- 主分类号: B60C11/12
- IPC分类号: B60C11/12
摘要:
The present invention has an object to improve snow/ice performance, wet performance, and wear resistance of a pneumatic tire. The present invention provides a pneumatic tire which includes, in a tread, at least two circumferential grooves extending along a tire circumferential direction, a plurality of lug grooves extending in a direction crossing the circumferential grooves, and a plurality of blocks (30, 32) sectioned by the circumferential grooves and the lug grooves, wherein each of the blocks (30, 32) has a circumferential sipe (40, 46) connecting the lug grooves to each other formed on both sides of the circumferential sipe in the tire circumferential direction, and two lateral sipes (42, 48) extending from the circumferential sipe (40, 46) to a block end in a tire width direction, and the circumferential sipe (40, 46) extends so as to change the direction thereof at least once. With this structure, high performance of traction and braking on snowy and icy road surfaces and wet road surfaces can be obtained. Further, rigidity of the blocks at the time of ground contact, and thus wear resistance of the blocks can be improved.
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