A heavy load pneumatic tire (100) includes a carcass ply (40) that forms a framework of the tire, and a belt layer (15) located outside the carcass ply in a tire radial direction in a tread section (10). The carcass ply (40) includes a first curvature change portion (P1) that is a boundary between a first segment (P0-P1) containing a tire equator line (CL) and a second segment (P1-P2) that is located outside the first segment in a tire width direction and inside the first segment in the tire radial direction and whose curvature is larger than a curvature of the first segment in a cross-section, and a second curvature change portion (P2) that is a boundary between the second segment and a third segment (P2-P3) that is located inside the second segment in the tire radial direction and whose curvature is smaller than the curvature of the second segment on the cross section. The tire further includes a cushion rubber (17a) whose inner edge is located at the first curvature change portion (P1) and that is disposed between the carcass ply (40) and the belt layer (15).
HEAVY-DUTY PNEUMATIC TIRE
SCHWERLASTLUFTREIFEN
PNEUMATIQUE POUR POIDS-LOURD
2025-03-19
Patent
Electronic Resource
English
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |