Schwerlastreifen

Details

Veröffentlichungs-Nr.

EP4458588

Aktenzeichen

EP24165851

Anmeldetag

25. März 2024

Veröffentlichung

23. Juli 2025

Erteilung

23. Juli 2025

Rechtsraum

EP

IPC

B60C11/03B60C11/13

Abstract

A heavy duty tire 2 includes a tread 4. The tread 4 has a plurality of circumferential main grooves 12. The plurality of circumferential main grooves 12 include a circumferential narrow groove 38. The circumferential narrow groove 38 includes a body portion 30, a tapered portion 32, and a widened portion 34. When the tread 4 comes into contact with a road surface, a pair of wall surfaces 24 of the circumferential narrow groove 38 come into contact with each other at the body portion 30. In a contour line of the circumferential narrow groove 38 in a meridian cross-section of the tire 2, an outer transition portion 40 which is a portion transitioning from the tapered portion 32 to the body portion 30 is represented by an arc tangent to a contour line of the tapered portion 32 and a contour line of the body portion 30, and an inner transition portion 42 which is a portion transitioning from the body portion 30 to the widened portion 34 is represented by an arc tangent to the contour line of the body portion 30 and a contour line of the widened portion 34.

Anmelder

Firma

Sumitomo Rubber Industries, Ltd.

Land

🇯🇵 Japan

Fachgebiete