PROBLEM TO BE SOLVED: To increase the cornering stability or stiffness of a pneumatic tire.SOLUTION: A pneumatic tire 1 comprises an annular tread portion 10 including a plurality of circumferentially extending main grooves 20, 21, 22. The main grooves include an innermost groove 22, an outermost groove 20, and at least one middle groove 21 arranged between the innermost groove 22 and the outermost groove 20. The outermost groove 20 comprises an inner sidewall 24, an outer sidewall 23, a groove bottom 25, and a groove opening opposite to the groove bottom 25. The outermost groove 20 has an asymmetric cross section with respect to any straight line perpendicular to the groove opening, and the outer sidewall 29 of the outermost groove 20 is tilted by more than 20° with respect to a straight line perpendicular to the groove opening.
【課題】コーナリングの安定性または空気タイヤの剛性を高める。【解決手段】空気タイヤ1は周方向に延びる複数の主溝20,21,22を含む環状のトレッド部10を有している。主溝は、最も内側の溝22と、最も外側の溝20と、最も内側の溝22と最も外側の溝20との間に配置された少なくとも1つの中間溝21とを含み、最も外側の溝20は、内側側壁24と、外側側壁23と、溝底部25と、溝底部25と対向する溝開口とを含み、最も外側の溝20は、溝開口に直交する任意の直線に関して非対称な断面を有し、最も外側の溝20の外側側壁29は、溝開口に直交する直線に対して20度より大きい角度傾いている。【選択図】図1
TIRE COMPRISING TREAD WITH ASYMMETRIC GROOVE PROFILES
非対称な溝形状を備えたトレッドを有するタイヤ
2015-06-22
Patent
Elektronische Ressource
Japanisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
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