发明名称 |
PNEUMATIC TIRE |
摘要 |
Provided is a pneumatic tire which uses, as an inner liner layer, a laminated sheet obtained by laminating an air permeation preventing layer, made of any one of a thermoplastic resin and a thermoplastic elastomer composition containing a blend of the thermoplastic resin and an elastomer, and a tie rubber layer, and which has high durability making it possible to prevent development of a crack in the tie rubber layer that occurs around a splice portion of the laminated sheet after the tire starts to be used. In a pneumatic tire which uses any one of a thermoplastic resin and a thermoplastic elastomer composition containing a blend of the thermoplastic resin and an elastomer for an air permeation preventing layer, a sagged portion is formed by a concavo-convex structure in the air permeation preventing layer at least between a point P and a point Q in such a shape that a length La of a straight line connecting the point P and the point Q and a length Lb of the air permeation preventing layer actually passing through the point P and the point Q satisfy a relationship of (1.03×La)‰¤Lb‰¤(1.5×La), where the point P is a point at which a perpendicular line extending from a cavity-side end A of a splice portion of the air permeation preventing layer intersects the air permeation preventing layer on a non-cavity side, and the point Q is a point at a position on the air permeation preventing layer away from the cavity-side end A of the splice portion of the air permeation preventing layer by 25 mm in a tire circumferential direction. |
申请公布号 |
EP2657045(A1) |
申请公布日期 |
2013.10.30 |
申请号 |
EP20110851424 |
申请日期 |
2011.11.25 |
申请人 |
THE YOKOHAMA RUBBER CO., LTD. |
发明人 |
ENDO,TOYOAKI;HASHIMURA,YOSHIAKI;SETO,HIDEKI;MATSUDA,JUN;HARA,YUICHI |
分类号 |
B60C5/14;B29D30/06;B29D30/30;B60C1/00 |
主分类号 |
B60C5/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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