发明名称 |
REDUCED ROLLING RESISTANCE PNEUMATIC RADIAL TIRE |
摘要 |
A heavy duty pneumatic radial tire includes a carcass consisting of at least one layer of metal cords substantially radially arranged, a breaker consisting of at least two layers of metal cords to form a main reinforcement with the carcass, and bead portions including hard and soft stiffeners. The carcass has a particular radial profile having a ratio of radii R/R' determined by a radius R' of a standard circle and a radius R determined by a particular definition and has a maximum distance f between an arc of the standard circle and the remaining carcass line smoothly extending from the profile curvature of the shoulder. Moreover a radial profile over a radially inner zone of the sidewall of 20-45% of the radial height SH has a curvature 1/ rho less than 6x10-3 mm-1 at a location 32.5% of the radial height corresponding to a center of the profile. |
申请公布号 |
AU5471786(A) |
申请公布日期 |
1986.09.18 |
申请号 |
AU19860054717 |
申请日期 |
1986.03.13 |
申请人 |
BRIDGESTONE CORP. |
发明人 |
SHINICHI FURUYA;KUNINOBU KADOTA;MINORU TOGASHI;KENSHIRO KATO |
分类号 |
B60C3/04;B60C9/20;B60C11/00;B60C15/06 |
主分类号 |
B60C3/04 |
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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