Patent ID: 9132701
Filing Date: 2015-09-15
Classification: B60C

Abstract:
1. A pneumatic vehicle tire, the pneumatic vehicle tire defining a circumferential direction (U), a radial direction (R) and an axial direction (A), the pneumatic vehicle tire comprising: a carcass; at least a first, a second and a third belt ply arranged resting one on top the other radially inward to radially outward and said plurality of belt plies conjointly defining a tire belt configured radially outside said carcass; a profiled tread constructed radially outside said belt and built up on said belt; said first belt ply being configured as a radially inner working ply having a plurality of parallel first reinforcement members made of steel embedded in rubber; said third belt ply being configured as a radially outer working ply having a plurality of parallel third reinforcement members made of steel embedded in rubber; said second belt ply being configured as a zero-degree ply having a plurality of parallel second reinforcement members embedded in rubber and being arranged between said first and said third belt plies; said first reinforcement members of said inner working ply having an orientation which, with reference to the circumferential direction (U), encloses an angle α lying in a range of 10°≦α≦45°; said third reinforcement members of said outer working ply having an orientation which, with reference to the circumferential direction (U), encloses an angle γ lying in a range of 10°≦γ≦45°; said first reinforcement members having, in relation to the circumferential direction (U), an axial inclination which is opposite the axial inclination of said third reinforcement members to the circumferential direction (U); said second reinforcement members of said zero degree ply having an orientation which, with reference to the circumferential direction (U), encloses an angle β lying in a range of 0°≦β≦5°; said first, second and third reinforcement members each having respective breaking strengths; the reinforcement members of at least one of said inner and said outer working plies having an extensibility D lying in a range of 0.22%≦D≦0.4% at 10% of the breaking strength thereof; said zero degree ply having first and second sides in the axial direction (A); said inner working ply and said outer working ply being configured wider than said zero-degree ply such that said inner working ply extends beyond said first side of said zero degree ply in a first axial section and beyond said second side of said zero degree ply in a second axial section and said outer working ply extends beyond said first side of said zero degree ply in a third axial section and beyond said second side of said zero degree ply in a fourth axial section; said first axial section of said inner working ply and said third axial section of said outer working ply being coupled in contact with one another in a first extension region having a width p1>0 mm; said second axial section of said inner working ply and said fourth section of said outer working ply being coupled in contact with one another in a second extension region having a width p2>0 mm; and, said first reinforcement members of said inner working ply and said third reinforcement members of said outer working ply being at a distance s≦1.5 mm from one another in the radial direction in said first and said second extension regions.