TIRE

PROBLEM TO BE SOLVED: To provide a tire that exert excellent wet performance and service life of the tire.SOLUTION: A tire 1 is provided with a plurality of blocks 5. At least one of the blocks 5 is provided with a sipe 10. The sipe 10 has an opening shape 10e extending zigzag along a longitudinal d...

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Bibliographic Details
Main Author MAEHARA ATSUSHI
Format Patent
LanguageEnglish
Japanese
Published 17.05.2018
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Summary:PROBLEM TO BE SOLVED: To provide a tire that exert excellent wet performance and service life of the tire.SOLUTION: A tire 1 is provided with a plurality of blocks 5. At least one of the blocks 5 is provided with a sipe 10. The sipe 10 has an opening shape 10e extending zigzag along a longitudinal direction of the sipe on a tread surface of the block 5. The sipe 10 extends periodically to inside in a tire radial direction, while keeping an opening shape 10e and repeatedly keeping amplitude in a longitudinal direction of the sipe. In a periodic pattern in the tire radial direction of the sipe 10, a half wavelength D1 of the pattern is 0.10 to 0.24 times of a maximum depth D of the sipe 10, and a slope angle θ of the half wavelength D1 relative to total amplitude is 45-65°.SELECTED DRAWING: Figure 1 【課題】優れたウェット性能とタイヤ寿命とを発揮する。【解決手段】複数のブロック5が設けられたタイヤ1である。ブロック5の少なくとも一つには、サイプ10が設けられている。サイプ10は、ブロック5の踏面をサイプ長手方向に沿ってジグザグ状にのびる開口形状10eを有している。サイプ10は、開口形状10eを維持しつつサイプ長手方向に振幅を繰り返しながらタイヤ半径方向内側に周期的にのびている。サイプ10のタイヤ半径方向の周期的模様において、その半波長D1がサイプ10の最大深さDの0.10〜0.24倍であり、かつ、全振幅に対する半波長D1の勾配角度θが45〜65°である。【選択図】図1
Bibliography:Application Number: JP20160220892