The present invention relates to a vehicle pneumatic tire having a strength member layer comprising steel filaments having a cross-sectional area of 98 mm2 to 125 mm2 per meter of the strength member layer wherein the steel has a carbon content of at least 0.86% by weight. The aim of the invention is to provide improved long-term durability while maintaining favorable rolling resistance. This is achieved in that the monofilament has a brass coating having a copper content of 61% to 70% by weight and a zinc content of 30% to 39% by weight; the monofilaments have a linear density of 92 g/100 m to 105 g/100 m; the monofilaments each having a tensile density Td of 34 MPa/(g/100 m) to 39 MPa/(g/100 m), where the tensile density Td is defined as the quotient of the tensile strength and the linear density of the respective strength member; the strength member layer has an area strength AS of 109 Nmm2 to 166 Nmm2, the area strength AS being defined as a product of a breaking strength and a diameter of a monofilament, and a pitch between the monofilament and an adjacent monofilament of the strength member layer; and the rubber material has an elongation at break of 300% to 450%.
本发明涉及一种车辆充气轮胎,该车辆充气轮胎具有强度构件层,该强度构件层包括钢单丝,这些钢单丝具有每米强度构件层98mm2至125mm2的横截面积,其中,钢具有按重量计至少0.86%的碳含量。本发明的目的是提供改进的长期耐久性同时保持有利的滚动阻力。这通过以下得以实现:单丝具有黄铜涂层,该黄铜涂层具有按重量计61%至按重量计70%的铜含量和按重量计30%至按重量计39%的锌含量;单丝具有92g/100m至105g/100m的线密度;单丝各自具有34MPa/(g/100m)至39MPa/(g/100m)的拉伸密度Td,其中,拉伸密度Td被定义为相应的强度构件的拉伸强度与线密度的商;强度构件层具有109Nmm2至166Nmm2的面积强度AS,所述面积强度AS被定义为单丝的断裂强度和直径、以及强度构件层的该单丝与相邻单丝之间的间距的乘积;以及橡胶材料具有300%至450%的断裂伸长率。
Pneumatic vehicle tire comprising reinforcement layer with steel filaments
包括具有钢单丝的增强层的车辆充气轮胎
10.01.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
Europäisches Patentamt | 2019
|Europäisches Patentamt | 2022
|PNEUMATIC TIRE HAVING IMPROVED REINFORCEMENT BELT LAYER
Europäisches Patentamt | 2015
|