Reifen

Details

Veröffentlichungs-Nr.

EP4778739

Anmeldetag

19. Dezember 2025

Veröffentlichung

22. Juli 2026

Rechtsraum

EP

Abstract

Provided is a tire 1 that can improve wet performance and heat dissipation property from an early stage of wear to a late stage of wear while maintaining rolling resistance performance and wear resistance performance. The tire 1 includes a tread 10 having a tread surface TRS. The tread 10 has a plurality of circumferential grooves 300. The plurality of circumferential grooves 300 divide the tread 10 into a plurality of land portions 200, and have a pair of circumferential main grooves 330 and at least one circumferential narrow groove 320. The circumferential narrow groove 320 has a narrow width portion 321 and an enlarged width portion 322. A groove width NIW of the narrow width portion 321 has a width at which, when the tire 1 comes into contact with the road surface, side walls (321a, 321b) of the narrow width portion 321 come into contact with each other. At least one of the land portions 200, which is adjacent to the circumferential narrow groove 320, has a plurality of pinholes 100. A depth PHD of the pinhole 100 is shallower than a depth CMD of the circumferential main groove 330. The pinhole 100 has a shape tapering toward the inner side in the tire radial direction. The relationship between a width L1 of the land portion 200 having the pinhole 100 and a distance L2 from the circumferential narrow groove 320 to the pinhole 100 satisfies the following Formula (1): 0.3 ≤ L 2 / L 1 ≤ 0.7 <img class="EMIRef" id="073c77b3-bed1-4340-86eb-7e24600469af-ia01" />

Anmelder

Firma

Sumitomo Rubber Industries, Ltd.

Land

🇯🇵 Japan