Tire structure

Abstract

A tire structure relates to the technical field of tire production and comprises a tread, a belted layer, a tire body layer and a lining layer which are sequentially arranged from outside to inside, shoulder pad rubber is arranged between the tread and the tire body layer, nylon wrapping cloth is arranged between the shoulder pad rubber and the tire body layer, the nylon wrapping cloth is formed by calendering nylon threads and a rubber material, and the nylon threads and the rubber material are arranged on the lining layer. According to the utility model, the nylon wrapping cloth is applied to the tire body layer, so that the strength of the tire shoulder can be enhanced, the stress deformation of the tire shoulder can be reduced, and the service life of the tire shoulder can be prolonged after the nylon wrapping cloth is applied to the tire body layer. And meanwhile, displacement of a tire body steel wire in a rubber material in the tire vulcanization process is reduced, so that the line appearance in the tire can be reduced, and the problem of U-shaped explosion caused by rubber material stripping due to aging of the steel wire in the later use period of the tire can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of tire production, in particular to a tire structure. Background Art

[0002] Tires are circular elastic rubber products that roll on the ground and are installed on various vehicles or machines. They are usually installed on metal rims, can support the vehicle body, buffer external impacts, achieve contact with the road surface and ensure the driving performance of the vehicle. Tires are often used under complex and harsh conditions. They are subjected to various deformations, loads, forces, and high and low temperature effects when driving, so they must have high load-bearing performance, traction performance, and buffering performance; at the same time, they are also required to have high wear resistance and flexibility resistance, as well as low rolling resistance and heat generation.

[0003] Under high load and extreme road conditions, the existing tire structure has the steel wire on the shoulder of the tire body easily separated from the rubber due to flexion deformation. Under long-term load, the steel wire on the tire body wears through the rubber, causing tire leakage and forming a U-shaped explosion, which greatly reduces the service life of the tire. Utility Model Content

[0004] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide a tire structure that can solve the above technical problems.

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

[0006] A tire structure comprises a tread, a belt layer, a carcass layer and an inner liner layer which are arranged in sequence from the outside to the inside, a shoulder pad is arranged between the tread and the carcass layer, a nylon wrap is arranged between the shoulder pad and the carcass layer, the nylon wrap is formed by calendering nylon thread and rubber, the angle between the nylon thread and the tire shoulder pad 3 in the bonding direction is 0-45°, and the width of the nylon wrap is greater than the width of the shoulder pad.

[0007] Preferably, a flap reinforcement layer is provided on the outside of the carcass layer, a rubber apex is provided on the outside of the flap reinforcement layer, a sidewall layer is provided on the outside of the rubber apex, and the upper end of the sidewall layer is connected to the tread.

[0008] Preferably, the model of the nylon line is 1400detx / 2V2.

[0009] Preferably, the nylon wrapping cloth is 3-5 mm wider than the shoulder pad rubber.

[0010] Compared with the prior art, the utility model has the following beneficial effects: by applying a layer of nylon wrapping cloth to the tire carcass layer, the tire shoulder strength can be enhanced, the stress deformation of the tire shoulder can be reduced, and at the same time, the displacement of the carcass steel wire in the rubber during the vulcanization process of the tire can be reduced, which can not only reduce the tire tire line disease phenomenon, but also prevent the U-shaped explosion problem caused by rubber peeling due to aging of the steel wire in the later stage of tire use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0012] Figure 1 This is a schematic diagram of the tire cross-section structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the nylon wrapping structure of the utility model;

[0014] Figure 3 It is a schematic diagram of deformation of the stress-bearing shoulder of the tire of the present invention.

[0015] Description of reference numerals:

[0016] 1-tread, 2-belt layer, 3-shoulder pad rubber, 4-carcass layer, 5-inner liner, 6-nylon cover, 7-sidewall layer, 8-bead cover reinforcement layer, 9-apex rubber. DETAILED DESCRIPTION

[0017] The following is a detailed description of the invention of the utility model by way of examples in conjunction with the accompanying drawings of the specification. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Example

[0018] like Figure 1 to Figure 2 As shown, the utility model discloses a tire structure, comprising a tread 1, a belt layer 2, a carcass layer 4 and an inner liner 5 which are arranged in sequence from the outside to the inside, a shoulder pad 3 is arranged between the tread 1 and the carcass layer 4, a nylon wrapping 6 is arranged between the shoulder pad 3 and the carcass layer 4, the nylon wrapping 6 is formed by calendering a nylon wire with a model of 1400detx / 2V2 and a flexure-resistant and tensile-resistant rubber material, the angle of the nylon wire and the tire shoulder pad 3 in the fitting direction is 0-45°, preferably 45°, and the width of the nylon wrapping 6 is greater than the width of the shoulder pad 3, preferably, the nylon wrapping 6 is 4 mm wider than the shoulder pad 3.

[0019] In this embodiment, the tread 1 mainly functions to make the tire contact with the ground and provide driving force for driving; the belt layer 2 mainly functions to shape the tire load-bearing contact with the ground, and at the same time prevents the tire crown from being punctured and damaged; the shoulder pad rubber 3 mainly functions to maintain the flatness of the belt layer 2 and fill the shoulder of the tire; the carcass layer 4 mainly functions to protect and bear the entire tire, and to keep the tire at a certain external aid size; the inner liner 5 mainly functions to protect the tire carcass and at the same time keep the tire airtight; the nylon wrapping cloth 6 mainly functions to reduce the displacement of the carcass steel wire in the carcass rubber during the vulcanization process of the tire, and at the same time reduce the deformation of the tire shoulder carcass during the use of the tire, which can effectively protect the carcass shoulder from damage, thereby avoiding the U-shaped explosion of the tire caused by the peeling of the carcass rubber and the steel wire at the shoulder of the tire.

[0020] The carcass layer 4 is provided with a bead reinforcement layer 8 on the outside, the bead reinforcement layer 8 is provided with an apex rubber 9 on the outside, and a sidewall layer 7 is provided on the outside of the apex rubber 9, and the upper end of the sidewall layer 7 is connected to the tread 1. The sidewall layer 7 mainly plays a role in protecting the carcass; the bead reinforcement layer 8 mainly plays a role in reinforcing the bead; and the apex rubber 9 mainly plays a role in bearing the tire and fixing its shape.

[0021] like Figure 3 As shown, during the driving process, the shoulder of the tire deforms greatly under stress. The carcass steel wire is subjected to the greatest stress here, deforms under long-term stress, and ages severely under high temperature. The steel wire and rubber are easily peeled off, causing damage to the shoulder of the tire and forming a U-shaped explosion. The tire structure of the utility model is that a layer of nylon wrapping cloth 6 is applied to two shoulders of a carcass layer 4, two shoulder rubber pads 3 are applied to the nylon wrapping cloth 6, and then a belt layer 2 and a tread 1 are adhered to the carcass layer 4. The nylon wrapping cloth 6 is composed of 1400detx / 2 V2 nylon wire and high-strength, tensile-resistant rubber material. It is located above the carcass layer 4 and below the shoulder rubber pad 3. This position is exactly the position where the carcass layer 4 is deformed the most. The nylon wrapping cloth 6 is arranged here, which can significantly suppress the deformation of the tire shoulder carcass steel wire under load, and can also fix the rubber material around the shoulder carcass steel wire to prevent the carcass steel wire from shifting during the vulcanization process. The performance degradation caused by the degradation can be significantly improved through this new structure, thereby ensuring the stability of the tire quality.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and application concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tire structure, comprising a tread (1), a belt layer (2), a carcass layer (4) and an inner liner (5) arranged in sequence from the outside to the inside, a shoulder pad rubber (3) being arranged between the tread (1) and the carcass layer (4), Features: A nylon wrapping cloth (6) is provided between the shoulder pad rubber (3) and the tire body layer (4); the nylon wrapping cloth (6) is formed by calendering nylon thread and rubber material; the angle between the nylon thread and the tire shoulder pad rubber (3) in the laminating direction is 0-45°, and the width of the nylon wrapping cloth (6) is greater than the width of the shoulder pad rubber (3).

2. A tire structure as claimed in claim 1, Features: A tread reinforcement layer (8) is provided on the outside of the carcass layer (4), a rubber apex (9) is provided on the outside of the rubber apex (9), a sidewall layer (7) is provided on the outside of the rubber apex (9), and the upper end of the sidewall layer (7) is connected to the tread (1).

3. A tire structure as claimed in claim 1, Features: The model of the nylon line is 1400detx / 2V2.

4. A tire structure as claimed in claim 1, Features: The nylon wrapping cloth (6) is 3-5 mm wider than the shoulder pad rubber (3).

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