Luftreifen

Details

Veröffentlichungs-Nr.

EP3988333

Aktenzeichen

EP21202480

Anmeldetag

13. Oktober 2021

Veröffentlichung

20. März 2024

Erteilung

20. März 2024

Rechtsraum

EP

IPC

B60C11/00B60C19/00B60C19/12B60C9/00

Abstract

A pneumatic tire includes bead cores, a carcass layer, a belt layer, a tread rubber, an inner liner rubber layer, and a porous sound damper disposed on a tire inner cavity side of the inner liner rubber layer. In a normal state, a length in a tire axial direction of the sound damper is smaller than a distance in a tire radial direction from a bead base line to a maximum width position in an inner cavity surface of the sidewall portion. In a region in the tire axial direction where the sound damper is provided, a tread portion includes no cord, and includes rubber layers each having a larger thickness than the inner liner rubber layer and stacked in the tire radial direction. As for a hardness of each rubber layer, the hardness of the rubber layer located more inward in the tire radial direction is smaller.

Anmelder

Firma

Sumitomo Rubber Industries, Ltd.

Land

🇯🇵 Japan

Fachgebiete