发明名称 Pneumatic tire with tread having both end closed groove bottom concave portions and both end open groove bottom sipes
摘要 A pneumatic tire provided with a tread pattern on which a plurality of blocks are formed with circumferential grooves which extend along a circumferential direction of the tire and lateral grooves which traverse the circumferential grooves, wherein the lateral groove disposed between the blocks on the endmost tread edge region has a depth from 10 to 50% of a depth of the circumferential groove to be traversed and has a groove bottom concave portion whose both ends in a longitudinal direction are disposed inside the groove bottom, and a width of the groove bottom concave portion, which is determined on the basis of the bottom plane of the groove bottom, is from 25 to 45% of a groove width of the lateral groove.
申请公布号 US7954527(B2) 申请公布日期 2011.06.07
申请号 US20070844670 申请日期 2007.08.24
申请人 TOYO TIRE & RUBBER CO., LTD. 发明人 OHARA MASAAKI
分类号 B60C11/11;B60C11/117;B60C11/12;B60C11/13 主分类号 B60C11/11
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