TH26532B - Tread reinforcement for "heavy duty" tires - Google Patents

Abstract

The DC60 tire p with radial reinforcement (1) with the largest axial width, So, is included. The tread reinforcement (3) is assembled with a canvas layer. Two or more layers (32,34), the non-extensible parts, are placed across from one canvas to the next. With an angle between 10 degrees and 45 degrees with the direction along the circumference The above canvas is The axial width L32, L34 is at least 80% of the So width, and there is an additional layer of canvas (33) in pieces for reinforcement that are truly parallel to the circumferential direction arranged. The radius between the working canvas layers mentioned above. The working canvas layer (32,34) is L32, L34 greater than the L33 width of the additional canvas (33), at least 16% of the So width, and will be on both sides of the equator plane. And in the medium axial elongation of the additional canvas layer (33) is connected over axial distance 1 at at least 3% of the width So, after which it is separated by a section. (4) Of the rubber mixture having a thickness of at least 2 mm, p tires with radial rib reinforcement (1) with the greatest axial width So are included. Tread reinforcement (3) consisting of at least two operational tread structure layers (32,34) constituting a non-self-retaining reinforcement lay across from the first rubber construction layer. To the next floor with an angle between 10 and 45 degrees and the direction along the circumference. The aforementioned tire construction layer is at least L32, L34 axial width equal to 80% of the So width, and a composite reinforced rubber structure layer (83) for reinforcement that is truly parallel to the direction. The circumference is arranged along the radial line between the structural rubber phases for the aforementioned operations. The operational rubber structure layer (32,34) is at least L32, L33 wider than the L33 width of the reinforced rubber structure layer (33), being at least 16% of the So width and is located on both sides of the plane. Along the level And in the medium axial adhesion of the reinforced rubber structure layer (33) is connected by axial distance 1 that is at least 3% of the width So, after which it is separated by a segment. (4) of rubber mixture Which has a thickness of at least 2 mm.

Claims (1)

1.Tyre P with radial undercarriage reinforcement (1) with the largest axial width So, consisting of a tread reinforcement (3) running at least two layers (32, 34) of parts for non-extensible reinforcement By placing it crosswise from one layer to the next at an angle between 10E and 45 relative to the perimeter direction, such a layer comes at least the axial width L32, L34 equal to 80% of the width. So and arranged along the radial axis between the above working canvas layers, an additional layer (33) of the piece for reinforcement is significantly parallel to the circumferential direction. It is unique in that the working canvas layer (32,34) has a width of L32, L34 greater than the width. The L33 of the additional canvas layer (33) is at least 16% of the So width on both sides of the equator plane and with instant axial extension of the additional canvas layer (33) is spliced throughout. The axial distance 1 was at least 3.5% of the width So, then was separated by the mixture fraction that was at least the rest of the width together with the two working canvas layers (32, 34) 2. Tires according to claim 1 are unique in that The narrowest (32,34) working canvas layer (4) that the fish asked for was at least 2 mm thick. 3. The tires according to claim 2 were unique in that The tread reinforcement (3) where the tarp layer (32,34) is unequal in axial width, with the radial outer five-blade (34) axially narrower than the tarp. Work (32) arranged radially on the inside It consists of a radial outer canvas (35) of the part for elastic reinforcement, which is arranged relative to the circumferential direction at an angle between 10 and 45 and is arranged like the formed corners. Comes by the intensible part of the narrowest working canvas layer (34), such a protective canvas layer (35) with the axial width L35 less than the L34 axial width of the narrowest working canvas layer. Most (34) 4. Tires according to claim 2 are unique in that The tread reinforcement (3) where the working canvas layer (32,34) is unequal in axial width, with the axial outer working layer (34) narrower than the working canvas layer. The radial inner (32), comprising the radial outer canvas (35) of the part for elastic reinforcement, is arranged at an angle relative to the circumferential direction between 10 and 45 and is Arranged like the angles formed by the intensible part of the narrowest working canvas (34), such layer (35) with an axial width L35. In such a way that this layer covers the edge of the narrowest working canvas (34) radially, and then, in an axial stretch of the additional layer, is welded to the layer. The widest working tread (32) across the axial distance 1 \ ', which is at least equal to 2% of the width So, after that it was axially separated on the outside from the widest working layer (32) by a section (4) with a thickness of at least 2 mm. Claim 4 is unique in that The protective tarp layer (35), composed of a component for elastic reinforcement, is separated from the edge of the narrowest working canvas (32) by a section whose thickness is less than its thickness. Part (4) that separates the edge of the two working canvas layers (32,34) 6. Tires according to claim 1 to 5, either Has a unique feature in that The tread reinforcement (3) is additionally included, along the inner upper inner, between the ribbed reinforcement (1) and the radial inner work canvas (32), the canvas layer (31) of the Parts for non-extensible reinforcement at an angle relative to the circumferential direction. 60, with an arrangement identical to the angle of the part for the reinforcement of the working canvas layer (32) and the axial width L31 is less than the axial width. L32 of the widest working canvas (32) 7. Tires according to claim 5 are unique in that The tread reinforcement (3) is additionally assembled, radially on the inside, between the ribbed reinforcement (1) and the radial inner work canvas (32), the canvas layer (31) of the piece. Parts for non-extensible reinforcement, angled relative to circumferential directions greater than 60, are arranged like the corners of the part for reinforcement in the working canvas layer (32) and at the width along the line. The L31 axis is greater than the width of the widest working canvas, the protective canvas layer (35) that joins the widest working layer (32) at the width. L35 In such a way that this canvas layer In an axial instantaneous extension of the widest working canvas (32) is coupled to the aforementioned triangular layer (31) along the axial distance. 1, at least 0.02 times the So width of the ribbed reinforcement (1), after which it has been axially separated on the outside from the edge of the triangular tarp (31) by part (4) that A thickness of at least 2 mm. 8. Tires according to claim 2 are unique in that There is a tread reinforcement (3) where the working canvas layer (32,34) is unequal in width, with the radial outermost layer (34) of the axial runway wider than the working canvas. The innermost, along the radial line (32), is assembled by a layer of canvas (31) of the part for the non-stretchable reinforcement Which is angled relative to the circumferential direction greater than 60, with an arrangement similar to the angle of the part for the reinforcement of the narrowest layers (32) and where the axial width is L31 is less than the narrowest L32 width of the canvas (32) 9. Tires according to claim 2 are unique in that The tread reinforcement (3) where the working canvas layer (32,34) is unequal in width, with the radial outermost layer (34) axially wider than the inner working canvas. The radial end (32), comprised of a triangular canvas layer (31) of the part for the non-extensible reinforcement at an angle relative to the circumferential direction greater than 60, is arranged like the corners of Piece for reinforcement of the narrowest layers (32) and at axial width. L31 is greater than the narrowest L32 width of the working layer (32), the working layer (34) with a width greater than the L34 in the instantaneous extension of the working layer (32) is interlocked with the layer. Triangular canvas (31) across the axial distance l1 is at least 0.02 times the width S0 of the trussed reinforcement (1), after which it has been separated from the edge of the triangular canvas (31). By virtue of the part made of a rubber-like mixture and with a thickness of at least 2 mm. 1 0. Any tire under Claim 8 to 9. Has a unique feature in that There is a tread reinforcement (3) included. Along the outer radial of the widest working canvas layer (34), protective canvas layer (35) of the part for elastic reinforcement. Which are arranged at an angle relative to the circumferential direction between 10 and 45, with an arrangement similar to the corners formed by the intensible part of the widest layer (34) 1. 1. Tires according to claim 10 are unique in that The tread reinforcement (3) consists of, along the outer side of the widest working tarp (34), a protective canvas layer (35) of the elastic reinforcement part, which is arranged at an angle by In comparison with the perimeter direction between 10 and 45, with an arrangement similar to the angles formed by the incompatible part of the widest layer (34), the canvas layer (35). With axial width L35 in such a way that This layer is enclosed along the tip radius of the widest working layer (34) and, in the instantaneous extension of the narrowest working layer (32), is coupled to the inner layer accordingly. The radial (31) of the non-extensible part, which is inclined at a steep angle with the axial width L2, is at least 2% of the width S0, after which it is separated from the edge of the triangular canvas. As mentioned, the rubber-like part with a thickness of at least 2 mm.