| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of realizing enhancement of upsetting limitation performance without reducing operation stability and wearing-resistance. SOLUTION: A buttress part pattern having the number of pitch than a ground-contact part pattern, i.e., a tread pattern of a ground-contact part 41 is formed on a buttress part 45 positioned at the outside in a tire width direction of the ground-contact part 41 at a tread part 10 of the pneumatic tire 1. Although the buttress part 45 is brought into contact with a road surface when the vehicle attached with the pneumatic tire 1 travels and performs cornering, since the number of pitch of the buttress part 45 becomes many, rigidity becomes low. Therefore, when large lateral G is applied and large ground-contact pressure is applied to the buttress part 45, cornering force can be reduced by deflecting a buttress part land part 51 for forming the buttress part pattern can be reduced. As a result, enhancement of the upsetting limitation performance can be realized without reducing the operation stability and the wearing-resistance. COPYRIGHT: (C)2006,JPO&NCIPI |
