Structure for improving anti-bulging performance of tire

Abstract

The utility model discloses a structure for improving the anti-bulge performance of a tire, which relates to the technical field of tire production, and comprises a tire crown, a tire body, a sidewall, a tire bead and a belted layer, the belted layer is arranged at the lower end of the tire crown, the tire bead is arranged below the belted layer, the tire bead is positioned on the outer side of the tire body, and the tire body is arranged on the tire sidewall. The tire sidewall is arranged on one side, close to a tire bead, of a tire crown, and the tire further comprises a reinforcing layer arranged between a tire body and the tire sidewall. According to the structure for improving the anti-bulging performance of the tire, the reinforcing layer is additionally arranged between the tire body and the sidewall rubber, and the width, the angle and the position of the reinforcing layer are reasonably arranged, so that the strength of the seam allowance area of the tire is improved, and the strength of the easily damaged position of the tire is enhanced; therefore, the problem that more and more damaged bumps are generated on the tire seam allowance part along with the rising of the popularization degree of the low-flatness-ratio tire is solved, the tire body is prevented from being cut and broken by the rim during impact, and the anti-bump performance of the tire seam allowance area is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tire production, in particular to a structure for improving the anti-bulging performance of a tire. Background Art

[0002] Tires are ground-contacting, rolling, annular elastic rubber products installed on various vehicles or machinery. They are usually installed on metal rims to cushion external impacts, achieve contact with the road surface and ensure the vehicle's driving performance. As low-aspect-ratio tires become more and more popular, more and more tire bulges are appearing on the market. In order to increase the performance of the tire, different structures need to be added to improve the overall performance of the tire and improve the tire's anti-bulging performance.

[0003] Based on this, a structure is now provided to improve the anti-bulging performance of a tire, which can eliminate the disadvantages of the existing structure. Utility Model Content

[0004] The utility model aims to provide a structure for improving the anti-bulging performance of a tire, so as to solve the problem that the tire mouth is prone to damage and bulging in the background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A structure for improving the anti-bulging performance of a tire comprises a tire crown, a carcass, a sidewall, a bead and a belt layer, wherein a belt layer is arranged at the lower end of the tire crown, a bead is arranged below the belt layer, the bead is located on the outer side of the carcass, the sidewall is arranged on a side of the tire crown close to the bead, and also comprises a reinforcement layer arranged between the carcass and the sidewall.

[0007] Preferably, the sidewall sub-mouth portion includes a steel ring, an apex rubber, and a sidewall rubber, the apex rubber is arranged at the end of the tire body, the steel ring is inserted inside the apex rubber, and the sidewall rubber is arranged on the outside of the apex rubber.

[0008] Preferably, the sidewall rubber includes a first outer protective rubber and a second outer protective rubber, the first outer protective rubber is arranged on the outer surface of the reinforcing layer, and the second outer protective rubber is arranged on the outer surface of the tire bead.

[0009] Preferably, the reinforcement layer is made of metal material, and the width between the two ends of the reinforcement layer is a, and the range of a is 30 mm to 70 mm.

[0010] Preferably, the reinforcing layer is obliquely arranged on one side of the carcass, and the angle between the reinforcing layer and the carcass is set to b, and the range of b is 30° to 60°.

[0011] Preferably, the distance between the lowest point of the reinforcement layer and the tire heel line is c, and the range of c is 0 to 10 mm.

[0012] Preferably, two nylon cord layers are provided on the side of the reinforcement layer close to the sidewall rubber.

[0013] Preferably, a rubber component is provided between the two nylon cord layers, and the Shore hardness of the rubber component is 60-75 degrees.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] In the utility model, a reinforcing layer is added between the carcass and the sidewall rubber, and the width, angle and position of the reinforcing layer are reasonably arranged, thereby improving the strength of the tire bead area and enhancing the strength of the easily damaged position of the tire, thereby solving the problem of increasing damage and bulging at the tire bead area as the popularity of low-aspect-ratio tires increases, preventing the carcass from being cut and broken by the rim during impact, improving the anti-bulging performance of the tire bead area, adding two nylon cord layers above the reinforcing layer on the tire, and arranging a rubber component to reduce the shear strain between the two nylon cord layers, thereby improving the service life of the tire and achieving the purpose of protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 For the utility model Figure 1 Enlarged view of point A in the middle.

[0018] Figure 3 It is a schematic structural diagram of the first outer protective glue and the second outer protective glue of the utility model.

[0019] Figure 4 It is a structural schematic diagram of the reinforcement layer of the utility model.

[0020] Figure 5 This is a schematic structural diagram of Example 2 of the present utility model.

[0021] Notes on the accompanying drawings: 1. Tire crown; 2. Tire body; 3. Sidewall; 4. Tire bead; 5. Belt layer; 6. Reinforcement layer; 7. Nylon cord layer; 8. Rubber component; 31. Steel rim; 32. Apex rubber; 33. Sidewall rubber; 331. First outer protective rubber; 332. Second outer protective rubber. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] Example 1

[0024] In this embodiment, if Figure 1-Figure 4As shown, a structure for improving the anti-bulging performance of a tire comprises a tire crown 1, a carcass 2, a sidewall 3, a bead 4 and a belt layer 5. The belt layer 5 is provided at the lower end of the tire crown 1, and the bead 4 is provided below the belt layer 5. The bead 4 is located on the outer side of the carcass 2. The sidewall 3 is arranged on a side of the tire crown 1 close to the bead 4. The structure also comprises a reinforcement layer 6 arranged between the carcass 2 and the sidewall 3. The reinforcement layer 6 is used to improve the strength of the tire mouth area, and at the same time improve the rigidity and dimensional stability of the tire, thereby reducing the unsprung mass of the entire vehicle.

[0025] Among them Figure 2 and Figure 3 As shown, the sidewall 3 includes a steel ring 31, an apex rubber 32, and a sidewall rubber 33. The apex rubber 32 is arranged at the end of the carcass 2, and the steel ring 31 is inserted inside the apex rubber 32. The tire bead 4 is engaged with the tire through the steel ring 31. The steel ring 31 inside the tire bead 4 can firmly fix the tire on the rim and make them combined together. The sidewall rubber 33 is arranged on the outside of the apex rubber 32 to prevent the carcass 2 from being mechanically damaged, atmospherically affected, and affected by moisture.

[0026] Among them Figure 2 and Figure 3 As shown, the sidewall rubber 33 includes a first outer protective rubber 331 and a second outer protective rubber 332. The first outer protective rubber 331 is arranged on the outer surface of the reinforcing layer 6, and the second outer protective rubber 332 is arranged on the outer surface of the bead 4, which can optimize the rigidity of the tire side, optimize the stress distribution of the tire during use, reduce stress concentration points, reduce heat generation on the side, and reduce bulging and delamination of the sidewall 3 due to overheating, so as to increase the anti-bulging performance of the reinforcing layer 6 and the outer side of the bead 4;

[0027] Among them Figure 4 As shown, the reinforcing layer 6 is set to a metal material, which can enhance the strength of the tire, adapt to the working environment of low-aspect ratio tires, and improve the service life of the tire. The width between the two ends of the reinforcing layer 6 is a, and the range of a is 30mm to 70mm, which is convenient for the use of a structure that improves the anti-bulging performance of the tire and improves the overall strength of the tire mouth area;

[0028] Among them Figure 2 and Figure 4 As shown, the reinforcing layer 6 is tilted on one side of the carcass 2, and the angle between the reinforcing layer 6 and the carcass 2 is set to b, and the range of b is 30° to 60°, so as to increase the contact area between the reinforcing layer 6 and the carcass 2 and enhance the strength of the easily damaged position of the tire;

[0029] Among them Figure 2 and Figure 3 As shown, the distance between the lowest point of the reinforcing layer 6 and the tire heel line is c, and the range of c is 0 to 10 mm, which is convenient for controlling the position and length of the reinforcing layer 6 and increasing the overall practicality of the structure;

[0030] Example 2

[0031] The difference from Example 1 is that Figure 5 As shown, two layers of nylon cord layers 7 are provided on one side of the reinforcing layer 6 close to the sidewall rubber 33. The function of the nylon cord layers 7 is to greatly improve the puncture resistance of the tire, protect the tire, and extend the service life of the tire;

[0032] Among them Figure 5 As shown, a rubber component 8 is provided between the two nylon cord layers 7 . The Shore hardness of the rubber component 8 is 60-75 degrees. The rubber component 8 is wear-resistant and serves to isolate the two nylon cord layers 7 and reduce the shear strain between the nylon cord layers 7 .

[0033] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A structure for improving the anti-bulging performance of a tire, comprising a tire crown (1), a carcass (2), a sidewall (3), a bead (4) and a belt layer (5), wherein the belt layer (5) is provided at the lower end of the tire crown (1), a bead (4) is provided below the belt layer (5), the bead (4) is located outside the carcass (2), and the sidewall (3) is provided on a side of the tire crown (1) close to the bead (4); It is characterized in that It also includes a reinforcing layer (6) disposed between the carcass (2) and the sidewall (3); The width between the two ends of the reinforcing layer (6) is a, and the range of a is 30 mm to 70 mm; The reinforcing layer (6) is arranged obliquely on one side of the carcass (2), and the angle between the reinforcing layer (6) and the carcass (2) is set to b, and the range of b is 30° to 60°; The distance between the lowest point of the reinforcing layer (6) and the tire heel line is c, and the range of c is 0-10 mm.

2. The structure for improving the anti-bulging performance of a tire according to claim 1, characterized in that: The sidewall (3) sub-mouth portion comprises a steel ring (31), an apex rubber (32), and a sidewall rubber (33); the apex rubber (32) is arranged at the end of the carcass (2); the steel ring (31) is inserted inside the apex rubber (32); and the sidewall rubber (33) is arranged on the outside of the apex rubber (32).

3. The structure for improving the anti-bulging performance of a tire according to claim 2, characterized in that: The sidewall rubber (33) comprises a first outer protective rubber (331) and a second outer protective rubber (332), wherein the first outer protective rubber (331) is arranged on the outer surface of the reinforcing layer (6), and the second outer protective rubber (332) is arranged on the outer surface of the tire bead (4).

4. The structure for improving the anti-bulging performance of a tire according to claim 1, characterized in that: The reinforcement layer (6) is made of metal material.

5. The structure for improving the anti-bulging performance of a tire according to claim 2, characterized in that: Two nylon cord layers (7) are provided on the side of the reinforcing layer (6) close to the sidewall rubber (33).

6. The structure for improving the anti-bulging performance of a tire according to claim 5, characterized in that: A rubber component (8) is provided between the two nylon cord layers (7), and the Shore hardness of the rubber component (8) is 60-75 degrees.

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