Commercial vehicle tyre
A technology for commercial vehicles and tires, applied to heavy tires, heavy vehicles, vehicle parts, etc., can solve the problems of steel cord extrusion and penetration of the inner layer, to avoid extrusion penetration, high puncture resistance, prevent The effect of extrusion penetration
Inactive Publication Date: 2018-12-21
CONTINENTAL REIFEN DEUTSCHLAND GMBH
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
These steel cords, although imparting good strength properties to the carcass ply, have the disadvantage that the steel cords may be crushed in the shoulder area of the tire when molding the finished tire blank into the curing mould. penetrate the inner layer
Method used
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[0012] The commercial vehicle tire embodied according to the invention is a commercial vehicle tire of radial construction with a cross-sectional height of 135 mm to 200 mm and a load index of 121 to 154. The commercial vehicle tire has the usual components such as a profiled tread, a multi-ply cord belt reinforced especially with steel cords, an inner layer, a bead area with bead cores and core profiles, and a A radial carcass formed of at least one carcass layer reinforced by wires. The steel cords of the carcass ply extend radially in the sidewalls, in the axial direction radially inside the tread and cord band.
[0013] figure 1 Shown is a cross-section of a steel cord particularly suitable for use in the carcass ply of a commercial vehicle tire embodied according to the invention, having a 1+6 structure and correspondingly a single core element 1 and with The outer side of the core single wire contacts the six layer single wires 2 . The layer individual wires 2 are twi...
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Abstract
Commercial vehicle tyre of a radial type with a cross-sectional height of 135 mm to 200 mm, a load index of 121 to 154, a radial-ply casing with at least one casing ply comprising steel cords embeddedin rubber and with bead regions comprising bead cores and bead fillers, around which the casing ply runs, thereby forming turnups. The casing ply is reinforced with steel cords of the construction 1+ 6, wherein the core filament (1) has a diameter (d1) of 0.19 mm to 0.22 mm and the ply filaments (2) have coinciding diameters (d2) of 0.17 mm to 0.20 mm, wherein the diameter (d2) of the ply filaments (2) is less than the diameter (d1) of the core filament (1) by at least 0.01 mm and wherein, at the crown of the tyre, the steel cords are arranged in the casing ply with 60 epdm to 75 epdm.
Description
technical field [0001] The invention relates to a commercial vehicle tire of radial construction having: a cross-sectional height of 135 mm to 200 mm, a load index of 121 to 154, with at least one carcass ply consisting of steel cords embedded in rubber A radial carcass, and bead regions with bead cores and core profiles, around which the carcass layer extends in such a way as to form a turn-up. Background technique [0002] It is common to reinforce the carcass in commercial vehicle tires of the type mentioned in the opening paragraph (with a cross-sectional height of 135 mm to 200 mm and a load index of 12 to 154) with steel cords of construction 3 x 0.20 mm + 9 x 0.175 mm layer, where the steel single wire has a value of 2700N / mm in the NT range 2 to 3050N / mm 2 The tensile strength of the tire is arranged to be 30 to 45 epdm in the tire crown. These steel cords, although imparting good strength properties to the carcass ply, have the disadvantage that the steel cords m...
Claims
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IPC IPC(8): D02G3/48B60C9/00B60C9/04
CPCB60C2200/06B60C2009/0466B60C2009/0425B60C2009/045B60C9/0007D07B1/062D07B2201/2006D07B2201/2051D07B2201/2059D07B2201/2025D07B2801/12D02G3/48D07B2201/202D07B2201/2041D07B2201/2066D07B2205/3025D07B2501/2046D10B2505/022
Inventor 福尔克马·弗里斯马蒂金·奥斯特巴恩米夏埃尔·舒纳克
Owner CONTINENTAL REIFEN DEUTSCHLAND GMBH