Reifen und Radialer Luftreifen

Details

Veröffentlichungs-Nr.

EP3750721

Aktenzeichen

EP20177887

Anmeldetag

2. Juni 2020

Veröffentlichung

23. Februar 2022

Erteilung

23. Februar 2022

Rechtsraum

EP

IPC

B60C9/20B60C9/18B60C11/00

Abstract

A tire (10) is disclosed comprising a belt structure (20) having a radially innermost main belt layer (26), a first, unreinforced cushion layer (30) disposed on a radially outer side of the main belt layer (26), a second, unreinforced cushion layer (32) disposed on a radially outer side of the first cushion layer (30), and a protective belt layer (28) disposed between a radially outer side of the second cushion layer (32) and a radially inner side of the tread layer (18). A radially outermost layer of the main belt layer (26) has reinforcement cords (261) with a specified diameter (C<d>), the first unreinforced cushion layer (30) having a radial thickness in a range of from 0.5 to 4.0 times the specified diameter (C<d>). Also, a tread (18) for a tire (10) is disclosed, the tread (18) comprising a plurality of circumferentially extending tread grooves (181); one circumferentially extending center rib (184) defined by two of the tread grooves (181), a radially outer surface of the center rib (184) having a first radius of curvature (TR<1>); two circumferentially extending intermediate ribs (183) defined by the tread grooves (181), a radially outer surface of each intermediate rib (183) having a second radius of curvature (TR<2>); and two circumferentially extending shoulder ribs (186) defined by the tread grooves (181), a radially outer surface of each shoulder rib (186) having a third radius of curvature (TR<3>) and a different fourth radius of curvature (TR<4>), the third radii (TR<3>) each being disposed adjacent one of the tread grooves (181), the fourth radii (TR<4>) each being disposed adjacent an axial outer edge of the tread (18), and the second radii (TR<2>) each being greater than the first radius (TR<1>).

Anmelder

Firma

The Goodyear Tire & Rubber Company

Land

🇺🇸 USA

Fachgebiete