Tires and vehicles

Abstract

This utility model discloses a tire and a vehicle, comprising an inner liner, a tire carcass, a steel wire bead assembly, and a sidewall arranged sequentially from the inside out. The tire carcass has a double-layer structure, comprising a first tire carcass cord layer and a second tire carcass cord layer arranged sequentially. The first tire carcass cord layer covers the outside of the inner liner and has a first reverse-wrapped end that wraps around the steel wire bead assembly. The second tire carcass cord layer has a second reverse-wrapped end that wraps around the first reverse-wrapped end. The length of the first reverse-wrapped end is greater than the length of the second reverse-wrapped end. By setting a double-layer tire carcass, the tire and vehicle of this utility model can effectively improve the tire's impact resistance and handling, while reducing tire rolling resistance.

Description

Technical Field

[0001] This utility model relates to the field of wheel technology, and in particular to a tire and a vehicle. Background Technology

[0002] Passenger car tires frequently encounter various road conditions during daily use, such as uneven surfaces, potholes, and gravel. These conditions can easily impact tires, leading to tire damage or blowouts. Although existing tires have seen improvements in structure and materials, their impact resistance under extreme road conditions still needs further enhancement, especially for new energy vehicles with their heavier weight, which increases the probability of tire blowouts due to impacts.

[0003] Therefore, it is necessary to improve the structure of existing tires to enhance their impact resistance, reduce the probability of tire blowouts and damage, and improve driving safety. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a tire and vehicle that improves the tire's structure, thereby enhancing the tire's impact resistance, reducing the probability of tire blowouts and damage, and improving driving safety.

[0005] The tire of this utility model includes an inner liner, a tire body, a steel wire bead assembly, and a tire sidewall arranged sequentially from the inside to the outside. The tire body has a double-layer structure and includes a first tire body cord layer and a second tire body cord layer arranged sequentially. The first tire body cord layer covers the outside of the inner liner and has a first reverse-wrapped end that wraps around the steel wire bead assembly. The second tire body cord layer has a second reverse-wrapped end that wraps around the first reverse-wrapped end. The length of the first reverse-wrapped end is greater than the length of the second reverse-wrapped end.

[0006] Furthermore, both the first and second tire cord layers are composed of composite cords made of aramid and nylon.

[0007] Furthermore, the tire also includes a nylon reinforcing layer, which is disposed on the outside of the second carcass cord layer and has a third reverse end that wraps around the second reverse end, the length of the third reverse end being less than the length of the second reverse end.

[0008] Furthermore, the tire also includes a tread and a belt layer disposed between the tread and the tire body. The belt layer includes a first belt layer and a second belt layer disposed in two layers. The first belt layer covers the outer side of the tire body, and the second belt layer covers the space between the first belt layer and the tread.

[0009] Furthermore, the end of the nylon reinforcing layer away from the tread is flush with the end of the steel wire bead assembly away from the tread, and the width of the nylon reinforcing layer is 40mm to 60mm.

[0010] Furthermore, both the first belt layer and the second belt layer are steel wire belt layers, and the width of the first belt layer is greater than the width of the second belt layer.

[0011] Furthermore, the tire also includes a crown belt layer disposed outside the belt layer, the crown belt layer including a first crown belt layer and a second crown belt layer, the first crown belt layer covering the outside of the second belt layer, and the second crown belt layer covering the space between the first crown belt layer and the tread.

[0012] Furthermore, the outer end of the first coronal band layer is located outside the outer end of the first band layer, and the width of the second coronal band layer after molding is greater than the width of the first coronal band layer after molding.

[0013] Furthermore, the horizontal distance between the outer end of the first crown band layer and the outer end of the first band layer is 5mm, and the width of the first crown band layer after molding is 5mm to 10mm smaller than that of the second crown band layer after molding.

[0014] The vehicle of this utility model is equipped with the aforementioned tires.

[0015] The beneficial effects of this utility model are as follows: The tire and vehicle of this utility model, by setting a double-layer tire carcass, can improve the strength of the tire skeleton, thereby improving the tire's load-bearing capacity and impact resistance, extending the tire's service life under extreme road conditions, reducing the risk of tire blowout and damage, and effectively improving driving safety. At the same time, the overall structure is also easy to form and process, and can achieve the improvement of tire performance at a lower production cost. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the tire structure of this utility model.

[0018] Figure label:

[0019] 1. Tread; 2. First crown belt layer; 3. Second crown belt layer; 4. First belt layer; 5. Second belt layer; 6. First carcass cord layer; 7. Second carcass cord layer; 8. Triangle rubber; 9. Bead wire; 10. Nylon reinforcement layer; 11. Sidewall; 12. Inner liner. Detailed Implementation

[0020] Figure 1 This is a schematic diagram of the tire structure of this utility model, as shown below. Figure 1As shown: The tire of this embodiment includes an inner liner 12, a tire carcass, a steel wire bead assembly, and a sidewall 11 arranged sequentially from the inside to the outside. The tire carcass has a double-layer structure, and the tire carcass includes a first tire carcass cord layer 6 and a second tire carcass cord layer 7 arranged sequentially. The first tire carcass cord layer 6 covers the outside of the inner liner 12 and has a first reverse-wrapped end that wraps around the steel wire bead assembly. The second tire carcass cord layer 7 has a second reverse-wrapped end that wraps around the first reverse-wrapped end. The length of the first reverse-wrapped end is greater than the length of the second reverse-wrapped end. The beaded wire assembly includes a pre-composite beaded wire 9 and a triangular rubber 8. A first carcass cord layer 6 is disposed on the outside of the inner liner layer 12, and a second carcass cord layer 7 is disposed on the outside of the first carcass cord layer 6. During tire forming, the processing sequence from the inside out is inner liner layer 12, carcass, beaded wire assembly, and sidewall 11, which is an application of existing technology and will not be elaborated further here. The first carcass cord layer 6 has a first reverse-wrapped end that wraps around the beaded wire assembly, and the second carcass cord layer 7 has a second reverse-wrapped end that wraps around the first reverse-wrapped end. Figure 1 As stated in the text, relative to Figure 1 In the vertical direction, the length (height) of the first reverse wrapping end is greater than the length (height) of the second reverse wrapping end, which can disperse stress, effectively balance the stress distribution and strength of the tire body, reduce stress concentration at the cord end point of the steel wire bead assembly, improve the stability and reliability of the tire under various working conditions, and strengthen the protection of the tire sidewall 11. This is beneficial to improving the tire's impact resistance, extending the tire's service life under various road conditions, effectively reducing the risk of tire blowout, and improving the tire's load-bearing capacity and stability.

[0021] In this embodiment, both the first tire carcass cord layer 6 and the second tire carcass cord layer 7 are composed of composite cords of aramid and nylon. The tire carcass is composed of composite cords of aramid and nylon. The structure and composite process of aramid and nylon are applications of existing technology and will not be described in detail here. By changing the material of the tire carcass, compared with the polyester cords in the prior art, the tire carcass strength can be effectively improved, thereby effectively improving the tire's impact resistance.

[0022] In this embodiment, the tire further includes a nylon reinforcing layer 10, which is disposed on the outside of the second carcass cord layer 7 and has a third reverse-wrapped end that wraps around the second reverse-wrapped end. The length of the third reverse-wrapped end is less than the length of the second reverse-wrapped end. The nylon reinforcing layer 10 is disposed on the outside of the second carcass cord layer 7, and during the tire forming process, it has a third reverse-wrapped end that wraps around the second reverse-wrapped end, as shown below. Figure 1 As shown, relative to Figure 1In the vertical direction, the length (height) of the third reverse wrapping end is less than the length of the second reverse wrapping end. By setting the nylon reinforcing layer 10, the structural strength of the steel wire ring assembly can be improved, the steel wire ring assembly can be protected, and the tire's impact resistance and handling can be further improved. This allows the tire to have good comfort while reducing rolling resistance, thus improving driving comfort.

[0023] In this embodiment, the tire further includes a tread 1 and a belt layer disposed between the tread 1 and the tire body. The belt layer includes a first belt layer 4 and a second belt layer 5, which are arranged in two layers. The first belt layer 4 covers the outer side of the tire body, and the second belt layer 5 covers the space between the first belt layer 4 and the tread 1. The tread 1 is a double-layer rubber design. The contact surface between the tread 1 and the ground and the contact surface with the second crown belt layer 3 can be made of rubber products with different formulations. Of course, the specific formulation is an application of existing technology and will not be described in detail here, thus providing excellent elasticity to absorb impact energy.

[0024] In this embodiment, the end of the nylon reinforcing layer 10 away from the tread 1 is flush with the end of the steel wire bead assembly away from the tread 1, and the width of the nylon reinforcing layer 10 is 40mm to 60mm. The height of the third reverse end can be set according to usage requirements, and the width of the nylon reinforcing layer 10 (relative to...) Figure 1 The vertical direction can be set according to actual needs. The end of the nylon reinforcing layer 10 away from the tread 1 is flush with the end of the steel wire ring assembly away from the tread 1, thereby strengthening the steel wire ring 9.

[0025] In this embodiment, both the first belt layer 4 and the second belt layer 5 are steel wire belt layers, and the width of the first belt layer 4 is greater than the width of the second belt layer 5. The width of the first belt layer 4 (relative to...) Figure 1 The width of the steel belt layer (in the left and right directions) is greater than that of the second belt layer 5, which allows the tire to have better durability during use and extend the tire's service life. At the same time, the high strength and good fatigue resistance of the steel belt layer further improve the tire's safety.

[0026] In this embodiment, the tire further includes a crown belt layer disposed outside the belt layer. The crown belt layer includes a first crown belt layer 2 and a second crown belt layer 3. The first crown belt layer 2 covers the outside of the second belt layer 5, and the second crown belt layer 3 covers the space between the first crown belt layer 2 and the tread 1. The crown belt layer is made of nylon, which can effectively prevent the edges of the first belt layer 4 and the second belt layer 5 from coming apart, enhance tire durability, reduce the risk of sudden tire damage, and at the same time enhance the lateral rigidity of the tire, helping the vehicle maintain stability at high speeds, thereby improving handling performance, reducing tire deformation at high speeds, and improving safety.

[0027] In this embodiment, the outer end of the first crown layer 2 is located outside the outer end of the first belt layer 4, and the width of the second crown layer 3 after molding is greater than the width of the first crown layer 2 after molding. The outer end of the first crown layer 2 (in the inward and outward direction relative to the top view of the vehicle when the tire is installed on the vehicle) is located outside the outer end of the first belt layer 4. Both the first crown layer 2 and the second crown layer 3 are double-layer wound structures, so the first crown layer 2 and the second crown layer 3 are made of double-layer nylon products wound together. The width of the first crown layer 2 after winding is smaller than the width of the second crown layer 3 after winding.

[0028] In this embodiment, the horizontal distance between the outer end of the first crown belt layer 2 and the outer end of the first belt layer 4 is 5mm, and the width of the first crown belt layer 2 after molding is 35mm to 10mm smaller than the width of the second crown belt layer after molding. When the tire is installed on the vehicle, in the direction of the vehicle's top view and relative to the vehicle's inward and outward directions, the horizontal distance between the outer end of the first crown belt layer 2 and the outer end of the first belt layer 4 is 5mm. The specific widths of the first crown belt layer 2 and the second crown belt layer 3 can be set according to usage requirements.

[0029] The vehicle in this embodiment includes the aforementioned tires.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A tire, characterized in that: The tire includes an inner liner, a carcass, a bead assembly, and a sidewall arranged sequentially from the inside out. The carcass has a double-layer structure and includes a first carcass cord layer and a second carcass cord layer arranged sequentially. The first carcass cord layer covers the outside of the inner liner and has a first reverse-wrapped end that wraps around the bead assembly. The second carcass cord layer has a second reverse-wrapped end that wraps around the first reverse-wrapped end. The length of the first reverse-wrapped end is greater than the length of the second reverse-wrapped end.

2. The tire according to claim 1, characterized in that: Both the first and second tire cord layers are composed of composite cords made of aramid and nylon.

3. The tire according to claim 1, characterized in that: The tire also includes a nylon reinforcing layer, which is disposed on the outside of the second carcass cord layer and has a third reverse end that wraps around the second reverse end, the length of the third reverse end being less than the length of the second reverse end.

4. The tire according to claim 3, characterized in that: The tire also includes a tread and a belt layer disposed between the tread and the tire body. The belt layer includes a first belt layer and a second belt layer disposed in two layers. The first belt layer covers the outer side of the tire body, and the second belt layer covers the space between the first belt layer and the tread.

5. The tire according to claim 4, characterized in that: The end of the nylon reinforcing layer away from the tread is flush with the end of the steel wire bead assembly away from the tread, and the width of the nylon reinforcing layer is 40mm to 60mm.

6. The tire according to claim 4, characterized in that: Both the first belt layer and the second belt layer are steel wire belt layers, and the width of the first belt layer is greater than the width of the second belt layer.

7. The tire according to claim 4, characterized in that: The tire also includes a crown belt layer disposed outside the belt layer. The crown belt layer includes a first crown belt layer and a second crown belt layer. The first crown belt layer covers the outside of the second belt layer, and the second crown belt layer covers the space between the first crown belt layer and the tread.

8. The tire according to claim 7, characterized in that: The outer end of the first coronal band layer is located outside the outer end of the first band layer, and the width of the second coronal band layer after molding is greater than the width of the first coronal band layer after molding.

9. The tire according to claim 8, characterized in that: The horizontal distance between the outer end of the first crown band layer and the outer end of the first band layer is 5mm, and the width of the first crown band layer after molding is 5mm to 10mm smaller than that of the second crown band layer after molding.

10. A vehicle, characterized in that: The tire is installed according to any one of claims 1-9.

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