发明名称 PNEUMATIC TIRE
摘要 PROBLEM TO BE SOLVED: To provide a pneumatic tire having a part where a land part continuously directed to the bead part side from a tread surface and a protruded part displaying an emblem formed along the tire circumferential direction exist in a mixed manner on a side wall part and both of them are overlapped and capable of solving a problem that visibility of the emblem such as a letter, a logo, etc. displayed by the protruded part is lowered, a crack may be produced on a bottom part of the protruded part as a result of an improving method of the visibility. SOLUTION: The protruded part 3 at an overlapped part is protruded more than the land part 2, an end bottom part 31 on the outside in the diametrical direction of the protruded part 3 and the end bottom part 31 on the inside in the diametrical direction at a part where the protruded part 3 and the land part 2 are not overlapped make contact with a bottom surface 1 of a side wall part in a curved line by respectively having a radius of curvature, and the radius of curvature of the end bottom part 31 on the higher side in end part height from a bottom surface of the side wall part of the protruded part 3 out of the radii of curvature on the outside and the inside in the diametrical direction of the protruded part 3 is made larger than the radius of curvature of the end bottom part 31 on the other side on this pneumatic tire. COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2007076486(A) 申请公布日期 2007.03.29
申请号 JP20050266322 申请日期 2005.09.14
申请人 TOYO TIRE & RUBBER CO LTD 发明人 MIYAZAKI TETSUJI
分类号 B60C13/00 主分类号 B60C13/00
代理机构 代理人
主权项
地址