发明名称 Tire
摘要 A tire, wherein, a lateral groove (7) is disposed between a predetermined land block (5) and a land block (6) adjacent to the land block (5) in the tire circumference direction, among land blocks (4, 5, 6), and is formed of an inner lateral groove (Q) and an outer lateral groove (P), the inside lateral groove (Q) being disposed at an inside of a boundary of a bent portion (12) in a tire width direction, the outside lateral groove (P) being disposed at an outside of the bent portion (12), the bent portion (12) being formed at intermediate portion in the tire width direction. The angle θ1 of the inner lateral groove (Q) relative to the tire circumference direction is smaller than the angle θ2 of the outer lateral groove (P) relative to the circumference direction.
申请公布号 US8820374(B2) 申请公布日期 2014.09.02
申请号 US200913125215 申请日期 2009.10.21
申请人 Bridgestone Corporation 发明人 Tomida Tatsuya
分类号 B60C11/13;B60C11/11 主分类号 B60C11/13
代理机构 Sughrue Mion, PLLC 代理人 Sughrue Mion, PLLC
主权项 1. A tire in which a plurality of land blocks are formed by a circumferential groove which extends in a tire circumferential direction and a lateral groove which extends in a tire width direction, and formed on at least one of a tread portion and a shoulder portion, wherein an inter-block lateral groove is disposed between a predetermined land block and an adjacent land block which is adjacent to the predetermined land block at a tire circumferential direction side of the predetermined land block, among the plurality of the land blocks, and is formed of an inside lateral groove and an outside lateral groove, the inside lateral groove being disposed at an inside of a boundary of a bent portion in a tire width direction, the outside lateral groove being disposed at an outside of the bent portion, the bent portion being formed at intermediate portion in the tire width direction, an inside lateral groove angle θ1 relative to the tire circumferential direction of the inside lateral groove is smaller than an outside lateral groove angle θ2 relative to the tire circumferential direction of the outside lateral groove, the inside lateral groove angle θ1 is 30 degrees to 60 degrees and the outside lateral groove angle θ2 is 70 degrees to 80 degrees, and the predetermined land block and the adjacent land block are provided at the shoulder portion and the inter-block lateral groove is provided at the shoulder portion.
地址 Tokyo JP