Reifen für Schwerlastfahrzeug

Details

Veröffentlichungs-Nr.

EP3246181

Aktenzeichen

EP17168641

Anmeldetag

28. April 2017

Veröffentlichung

18. März 2020

Erteilung

18. März 2020

Rechtsraum

EP

IPC

B60C11/00

Abstract

In oder to provide a heavy-duty tire that allows wear resistance of a tread part to be improved while preventing an increase in rolling resistance, a heavy-duty tire (1) includes a tread part (2); in a tire cross section including a tire rotation axis in a 5% internal pressure state, a profile (20) of the tread part (2) includes a crown profile (21) and a pair of shoulder profiles (22) that respectively extend from both sides of the crown profile (21) to tread edges; the crown profile (21) and the shoulder profiles (22) each have an arc shape that is convex toward a tire radial direction outer side, the ratio (Rc/Rs) of a curvature radius (Rc) of the crown profile (21) to a curvature radius (Rs) of each of the shoulder profiles is 7.0; i.e. the ratio (Rs/Rc) is 0.143 or less; the tire axial direction distance (L1) from the tire equator (C) to the connecting point (23) is 0.70 or more times the tread half width (TWh).

Anmelder

Firmen

SUMITOMO RUBBER INDUSTRIES, LTD.
Sumitomo Rubber Industries, Ltd.

Land

🇯🇵 Japan

Fachgebiete