PNEUMATIC TIRE

Japanese Patent JP3771351

B2

PROBLEM TO BE SOLVED: To provide a pneumatic tire which excels in the motion performances such as braking performance, turning performance, straight advance running performance, etc., without sacrificing the other performances by chamfering an end fringe part of a divided land part at a curvature which corresponds to a distance from a predetermined position of the land part.
SOLUTION: This pneumatic tire has a plurality of block land parts 6 divided by a plurality of tread grooves 3a to 3d and 5 provided in a tread part 1, and the chamfering which becomes a projection curvature toward the outside in the direction of tire diameter is applied to an end fringe part 9 of the same block land part 6 at a curvature which corresponds to a distance from a central position of the block land part 6 in the same block land part 6. Furthermore, it has a riblike land part divided by at least two circumferential main grooves extended zigzag in the tread part, and the chamfering which becomes a projection curvature toward the outside in the direction of tire diameter is applied to an end fringe part of the same riblike land part at a curvature which corresponds to a vertical distance from a circumferential position of the tire which divides the riblike land part into two parts in the same riblike land part.

Hiroyuki Matsumoto

JP11461697A

April 26, 2006

May 02, 1997

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Bridgestone Corporation

B60C11/04; B60C11/11; B60C11/03; B60C11/13; (IPC1-7): B60C11/11; B60C11/04; B60C11/13

JP7186623A
JP2179508A
JP64022601A
JP60197409A
JP5522535A
JP3186405A
JP50022282B1

Kosaku Sugimura
Norita Tomita
Hiroshi Tokunaga
Kazuaki Takami
Umemoto Masao
Juno Aoki
Shiro Fujitani

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