PROBLEM TO BE SOLVED: To provide a pneumatic tire improving on-snow turning performance without damaging the steering stability performance on a dry road surface.SOLUTION: A pneumatic tire has on a shoulder rib 23B, plural shoulder lugs 11 extending along a tire width direction, ending in the shoulder rib without communicating with a shoulder main groove 22B and provided plurally in a tire circumferential direction, and plural shoulder circumferential narrow grooves 12 extending along the tire circumferential direction and having both ends ending in the shoulder rib including one end 12a provided separating within 5 mm from the end edge 11a of the shoulder lug groove. Further, the tire has on the inner rib 23A adjacent to the inside of the shoulder rib in the tire width direction, the inside lug grooves 31 extending along the tire width direction, including one end communicating with the shoulder main groove 22B and the other end ending in the inside rib and provided plurally in the tire circumferential direction, and the inside circumferential narrow grooves 32 extending along the tire circumferential direction, including both ends ending in the inside rib and including one end 32a provided separating within 5 mm from the end edge 31a of the inside lug groove.SELECTED DRAWING: Figure 2
【課題】乾燥路面での操縦安定性能を損なうことなく雪上旋回性能を向上する。【解決手段】ショルダーリブ23Bに、タイヤ幅方向に沿って延在しショルダー主溝22Bに連通せずにショルダーリブ内で終端してタイヤ周方向に複数設けられたショルダーラグ溝11と、タイヤ周方向に沿って延在し両端がショルダーリブ内で終端すると共に一方の端部12aがショルダーラグ溝の終端11aに対して5mm以内で離れて設けられたショルダー周方向細溝12と、を備え、ショルダーリブのタイヤ幅方向内側に隣接する内側リブ23Aに、タイヤ幅方向に沿って延在し一端がショルダー主溝22Bに連通し、他端が内側リブ内で終端してタイヤ周方向に複数設けられた内側ラグ溝31と、タイヤ周方向に沿って延在し両端が内側リブ内で終端すると共に一方の端部32aが内側ラグ溝の終端31aに対して5mm以内で離れて設けられた内側周方向細溝32と、を備える。【選択図】図2
PNEUMATIC TIRE
空気入りタイヤ
2018-03-22
Patent
Elektronische Ressource
Japanisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
PNEUMATIC TIRE INNER LINER, PNEUMATIC TIRE, AND PNEUMATIC TIRE PRODUCTION METHOD
Europäisches Patentamt | 2017
|