High-load tubeless tire bead structure

Abstract

The utility model discloses a tire bead structure of a high-load tubeless tire, which relates to the technical field of tire manufacturing and comprises a tire bead, wear-resistant rubber, a sidewall, a steel wire ring, a lining layer, seam allowance cloth, a tire body, a soft rubber core and a hard rubber core, the wear-resistant rubber is arranged at the lower part of the tire bead, the sidewall is arranged on the outer side of the tire bead, reinforcing cloth is arranged above the wear-resistant rubber, and the hard rubber core is arranged above the tire bead. The bead cloth is located above the reinforcing cloth, the bead cloth is adjacent to the tire body and penetrates through the whole tire, the steel wire ring is located above the bead cloth, the hard rubber core is located above the steel wire ring, the soft rubber core is located above the hard rubber core, the lining layer is located on the innermost side of the tire, and the lining layer is located on the outer side of the tire body. By designing the size and the difference level of parts such as the seam allowance cloth and the like, the reinforcing cloth is designed at the position of the tubeless tire bead, so that the tire bead is reinforced, and the overload performance of the tire is improved.

Description

Technical Field

[0001] This utility model applies to the field of tire manufacturing technology, specifically a high-load tubeless tire bead structure. Background Technology

[0002] Tires are load-bearing components of automobiles. With the development of the automobile manufacturing industry, the conditions for high-load use have increased. Under high-load conditions, the tire sinks more, the bead area is subjected to more stress, and the failure rate increases, mainly manifested as bead cracking and bead separation. Utility Model Content

[0003] To address the aforementioned problems, specifically those raised in the background section, this utility model patent proposes a high-load tubeless tire bead structure, comprising a bead, wear-resistant rubber, a sidewall, a steel wire ring, an inner liner, a bead fabric, a tire body, a soft rubber core, and a hard rubber core. The wear-resistant rubber is located below the bead, the sidewall is located outside the bead, a reinforcing fabric is positioned above the wear-resistant rubber, the bead fabric is located above the reinforcing fabric and is adjacent to the tire body, extending through the entire tire, the steel wire ring is located above the bead fabric, the hard rubber core is located above the steel wire ring, the soft rubber core is located above the hard rubber core, and the inner liner is located on the innermost side of the tire.

[0004] The further configuration of this utility model patent is as follows: the reinforcing fabric is divided into two layers with widths of 155mm and 145mm, a cutting angle of 45 degrees, a difference of 10mm between the two layers, and a distance of 84mm from the outer side of the steel wire ring 8, wherein the difference between the widest layer and the sub-fabric is 12mm.

[0005] The further configuration of this utility model patent is as follows: the width of the beaded fabric is 130mm, the upper outer part is covered with a 30mm wide and 1.5mm thick adhesive film, the upper inner part is covered with a 30mm wide and 1.5mm thick adhesive film, the lower inner part is covered with a 50mm wide and 2.0mm thick adhesive film, the adhesive film overlaps with the beaded fabric by 25mm, the distance between the outer end of the beaded fabric and the steel wire ring is 62mm, and the difference between the beaded fabric and the tire body is 18mm.

[0006] A further feature of this utility model patent is that the distance between the outer end of the tire and the wire ring is 44mm.

[0007] The beneficial technical effects of this utility model patent are as follows: by designing and adjusting the size and grade of components such as the bead cloth, a reinforcing cloth is designed in the tubeless tire bead area to strengthen the tire bead, thereby improving the tire's overload performance, reducing the failure rate, and increasing its applicability. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model.

[0009] Attached reference numerals: 1. Sidewall, 2. Abrasion-resistant rubber, 3. Reinforcing fabric, 4. Bead fabric, 5. Carcass, 6. Soft rubber core, 7. Hard rubber core, 8. Bead wire, 9. Inner liner. Detailed Implementation

[0010] The preferred embodiments of this utility model patent are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely for explaining the technical principles of this utility model patent and are not intended to limit the scope of protection of this utility model patent.

[0011] This utility model patent proposes a high-load tubeless tire bead structure. By designing reasonable component widths and reasonable differences between components, and designing reinforcing fabric 3 in the tubeless bead area, the bead is strengthened, which solves the problem of frequent tire failures under overload conditions.

[0012] The reinforcing fabric 3 is designed with 1400 dtex / 2V-2 nylon 66 as the material. The manufacturing process involves first applying adhesive using a calender to a thickness of 1.2 mm, then cutting it at a 45-degree angle with widths of 155 mm and 145 mm. The two layers are then laminated together, with a 10 mm difference between them. During molding, the distance from the steel wire ring 8 is 84 mm, and the difference between the narrow layer and the inner fabric 4 is 12 mm.

[0013] The design includes a bead fabric 4, made of steel wire with a 3×0.24 / 9×0.225CCHT structure. The manufacturing process involves first applying rubber coating on a calender to a thickness of 2.0 mm and a wire density of 60, then cutting it at a 30-degree angle with a width of 130 mm. A 30 mm wide and 1.5 mm thick rubber sheet is applied to the upper outer side, the upper inner side to the same extent, and the lower inner side to the same extent. The rubber sheet overlaps the bead fabric by 25 mm. The purpose of applying the rubber sheet to the inner and outer ends of the bead fabric 4 is to prevent internal and external cracking of the bead area under high-load conditions. The distance between the outer end of the bead fabric 4 and the steel wire bead 8 is 62 mm, and the difference in thickness between the bead fabric 4 and the tire carcass 5 is 18 mm.

[0014] The tire body is designed as 5, and the material is 0.25+6+12×0.225ST steel wire. The manufacturing process is as follows: first, the tire is coated with rubber using a calender to a thickness of 2.3mm, and then it is cut with a cutting machine at an angle of 90 degrees and a width of 778mm.

[0015] Although this utility model patent has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of this utility model patent. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any way. This utility model patent is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0016] In the description of this utility model patent, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for descriptive purposes and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model patent. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] Furthermore, it should be noted that, in the description of this utility model patent, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model patent according to the specific circumstances.

[0018] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0019] The technical solution of this utility model patent has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of this utility model patent is obviously not limited to these specific embodiments. Without departing from the principles of this utility model patent, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this utility model patent.

Claims

1. A high-load tubeless tire bead structure, comprising a bead, wear-resistant rubber (2), a sidewall (1), a steel wire ring (8), an inner liner (9), a bead fabric (4), a tire body (5), a soft rubber core (6), and a hard rubber core (7), characterized in that: The wear-resistant rubber (2) is located at the bottom of the tire bead, the tire sidewall (1) is located outside the tire bead, a reinforcing cloth (3) is provided above the wear-resistant rubber (2), the bead cloth (4) is located above the reinforcing cloth (3), the bead cloth (4) is adjacent to the tire body (5) and runs through the entire tire, the steel wire bead (8) is located above the bead cloth (4), the hard rubber core (7) is located above the steel wire bead (8), the soft rubber core (6) is located above the hard rubber core (7), and the inner liner (9) is located on the innermost side of the tire.

2. The high-load tubeless tire bead structure according to claim 1, characterized in that: The reinforcing fabric (3) is divided into two layers with widths of 155mm and 145mm, a cutting angle of 45 degrees, a difference of 10mm between the two layers, and a distance of 84mm from the outside of the wire loop (8). The difference between the widest layer and the sub-fabric (4) is 12mm.

3. The high-load tubeless tire bead structure according to claim 1 or 2, characterized in that: The width of the liner (4) is 130mm. The upper outer part is covered with a 30mm wide and 1.5mm thick film. The upper inner part is covered with a 30mm wide and 1.5mm thick film. The lower inner part is covered with a 50mm wide and 2.0mm thick film. The film overlaps the liner (4) by 25mm. The distance between the outer end of the liner (4) and the wire ring (8) is 62mm. The difference between the liner (4) and the tire body (5) is 18mm.

4. The high-load tubeless tire bead structure according to claim 1, characterized in that: The distance between the outer end of the tire body (5) and the wire ring (8) is 44mm.

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