To provide a pneumatic tire of which snow performance can be improved while suppressing decrease in a block rigidity.SOLUTION: Plural lug grooves 21 having a sharp bent part 22, and plural sipes 11B, which extend in a direction intersecting these lug grooves 21, are provided on an intermediate land part 10B. Respective lug grooves 21 are so located as to be not overlapped on one another in a tire circumferential direction in such a manner that one end 21a of each lug groove is opened to an outer side main groove 9B, and on the other hand, the other end 21b thereof is terminated in the intermediate land part 10B. When dividing pitches p1 to p5 with an end point 23 of the lug groove 21, which is opened to the outer side main groove 9B, as a reference position, each sipe 11B is so located as to be accommodated in a single pitch p1 to p5, and a groove area ratio of each pitch p1 to p5 in the intermediate land part 10B falls within a range of 15% to 25%.SELECTED DRAWING: Figure 2
【課題】ブロック剛性の低下を抑制しながら、スノー性能を向上させることを可能にした空気入りタイヤを提供する。【解決手段】中間陸部10Bに、鋭角な屈曲部22を有する複数本のラグ溝21と、これらラグ溝21に対して交差する方向に延在する複数本のサイプ11Bとが設けられ、各ラグ溝21は、一方の端部21aが外側主溝9Bに開口する一方で他方の端部21bが中間陸部10B内で終端すると共に、タイヤ周方向に互いに重ならずに配置され、ラグ溝21における外側主溝9Bに開口する端点23を基準位置としてピッチp1〜p5を区分したとき、サイプ11Bの各々が単一のピッチp1〜p5内に収まるように配置され、中間陸部10Bにおける各ピッチp1〜p5の溝面積比率が15%〜25%の範囲にある。【選択図】図2
PNEUMATIC TIRE
空気入りタイヤ
2019-10-03
Patent
Elektronische Ressource
Japanisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
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