Radialer Luftreifen

Details

Veröffentlichungs-Nr.

EP4368417

Aktenzeichen

EP23208903

Anmeldetag

9. November 2023

Veröffentlichung

25. Februar 2026

Erteilung

25. Februar 2026

Rechtsraum

EP

IPC

B60C15/06B60C9/02B60C9/28B60C15/00B60C11/03B60C13/00B60C15/04B60C9/20

Abstract

A pneumatic radial tire (1) comprising a tire carcass is disclosed. The tire (1) comprises a tread portion comprising a tread (3) disposed on the tire carcass; a pair of sidewall portions (4) adjacent to the tread portion;=a carcass ply (5, P<C>) extending circumferentially about the tire (1) and exhibiting two ply ending portions (20), wherein each ply ending portion (20) comprises a first ply contact section (21, Si) adjacent to a ply turn-up section (22, S<T>), said ply turn-up section (22, S<T>) being adjacent to a second ply contact section (23, S<2>), said second ply contact section (23, S<2>) forming or including the end of the ply ending portion (20); and a pair of bead portions adjacent to the sidewall portions (4). Each bead portion comprises a bead core (7), one or more apex elements (6) and one of the two ply ending portions (20) of said carcass ply (5, P<C>). In each bead portion, the ply ending portion (20) comprised therein forms a sealed enclosure (30) containing the bead core (7), said sealed enclosure (30) exhibiting a ply-to-ply contact section (11, Sc) formed by the first ply contact section (21, Si) and the second ply contact section (22, S<2>), and further exhibiting a surrounding section formed by the ply turn-up section (22, S<T>). In each bead portion, at least one apex element (6, E<A>) of the one or more apex elements (6) is located axially outwards from the ply-to-ply contact section (11, Sc) and at least a portion of the axially inward surface of said at least one apex element (6, E<A>) is in direct contact with an axially outward surface of the ply-to-ply contact section (11, Sc).

Anmelder

Firma

The Goodyear Tire & Rubber Company

Land

🇺🇸 USA

Fachgebiete