发明名称 |
Pneumatic tyre for racing kart |
摘要 |
A tyre (2) comprises a tread portion (4), a sidewall portion (6), a bead portion (8), a carcass portion (10), an inner liner (12) and a chafer (14). The carcass portion (10) is formed by a first carcass ply (22) and a second carcass ply (24). The absolute values of the angles of the cords of the carcass plies (22) and (24) in a circumferential direction are 25 to 38 degrees. The bead portion (8) is constituted by a bead core (18) and a bead apex (20) extended outward in a radial direction from the bead core (18). A complex elastic modulus E* of the bead apex (20) measured on a condition that a temperature is 70 DEG C, a frequency is 10 Hz and an amplitude is 2% is equal to or greater than 80 MPa. <IMAGE> |
申请公布号 |
EP1535758(A1) |
申请公布日期 |
2005.06.01 |
申请号 |
EP20040020897 |
申请日期 |
2004.09.02 |
申请人 |
SUMITOMO RUBBER INDUSTRIES, LTD. |
发明人 |
SAIWAKI, IZUMI;UEDA, TOSHIAKI;MINE, AKIHIRO |
分类号 |
B60C9/06;B60C15/06 |
主分类号 |
B60C9/06 |
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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