Invention Grant
US09108472B2 Pneumatic heavy-duty tire having circumferential reinforcing layer and sipes
有权
具有圆周增强层和刀槽花纹的气动重型轮胎
- Patent Title: Pneumatic heavy-duty tire having circumferential reinforcing layer and sipes
- Patent Title (中): 具有圆周增强层和刀槽花纹的气动重型轮胎
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Application No.: US14346699Application Date: 2011-09-22
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Publication No.: US09108472B2Publication Date: 2015-08-18
- Inventor: Hideki Hamanaka
- Applicant: Hideki Hamanaka
- Applicant Address: JP
- Assignee: The Yokohama Rubber Co., LTD.
- Current Assignee: The Yokohama Rubber Co., LTD.
- Current Assignee Address: JP
- Agency: Thorpe North & Western
- International Application: PCT/JP2011/071686 WO 20110922
- International Announcement: WO2013/042257 WO 20130328
- Main IPC: B60C9/22
- IPC: B60C9/22 ; B60C9/28 ; B60C11/11 ; B60C11/12 ; B60C9/20 ; B60C9/18 ; B60C9/00

Abstract:
In the pneumatic tire, the blocks above the circumferential reinforcing layer have at least one sipe. Also, the sipe has a bent shape, in a plan view, with two flex points P1, P2, and has a closed structure with two end points Q1, Q2 terminating within the block. Also, the angle α between the line that connects the flex points P1, P2 and the tire circumferential direction is within the range such that 0°≦α≦10°. Also, the angle β1 between the line connecting the flex point P1 and the end point Q1 and the tire circumferential direction, and the angle β2 between the line connecting the flex point P2 and the end point Q2 and the tire circumferential direction are within the range such that 35°≦β1≦55° and 35°≦β2≦55°.
Public/Granted literature
- US20140326381A1 Pneumatic Tire Public/Granted day:2014-11-06
Information query