Tire structure for inhibiting stress concentration of tire shoulder

Abstract

The utility model relates to the technical field of tires, and discloses a tire structure for inhibiting stress concentration of tire shoulders, which comprises a tire body, a tire tread is arranged on the periphery of the tire body, and a tire shoulder is laid at the joint of the tire body and the tire tread; the annular air bags are inserted into the left side and the right side of the interior of the tire body, and the left side and the right side of the tire tread and the tire shoulders are all inclined cambered surfaces. According to the tire structure for inhibiting the stress concentration of the tire shoulder, the radians of the left side and the right side of the tread and the radian of the tire shoulder are adjusted, and the chamfer design at the joint of the tread and the tire shoulder is matched, so that the stress generated by the tire shoulder in the grounding running process of the tire can be dispersed, the stress is eliminated, and the overall pressure distribution of the tread part is improved; meanwhile, the annular air bag is additionally arranged at the chamfer of the tire shoulder in the tire body, so that the impact force from the ground can be absorbed and buffered in the running process of a vehicle, particularly on an uneven road surface or a sharp turn, and the direct impact on the tire shoulder is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to tire technical field, concretely is a kind of tire structure for inhibiting stress concentration of tire shoulder. BACKGROUND

[0002] Tire is the only component of automobile and ground contact, it not only carries the weight of whole vehicle, also is responsible for transmission power, braking force and steering force, while ensuring the driving stability and ride comfort of vehicle. The basic composition of tire includes crown, shoulder, sidewall, lip and so on, wherein tire shoulder refers to the area of tire from tread transition to sidewall.

[0003] The design of common tire profile shoulder is the acute angle design generated by the intersection of the tangent arc of two or three sections of tread and tire shoulder straight line (circular arc) with the width of tire running surface and tire shoulder drop amount as reference, but this way is easy to make tire shoulder receive uneven stress in the process of vehicle driving, especially in turning or high-speed driving, and stress concentration can lead to premature wear, crack or even burst of tire shoulder, which can seriously affect the service life and driving safety of tire, cannot meet the working requirements of tire, and therefore a tire structure for inhibiting stress concentration of tire shoulder is proposed. SUMMARY

[0004] (I) technical problem solved

[0005] In view of the deficiencies of prior art, the utility model provides a tire structure for inhibiting stress concentration of tire shoulder to solve the technical problem that tire shoulder receives uneven stress in the process of vehicle driving, especially in turning or high-speed driving, and stress concentration can lead to premature wear, crack or even burst of tire shoulder.

[0006] (II) technical scheme

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a tire structure for inhibiting stress concentration of tire shoulder, comprising:

[0008] Body, the outer periphery of the body is equipped with tread, and the connecting place of the body and the tread is paved with shoulder;

[0009] Annular air bag, inserted in the inside left and right sides of body, the left and right sides of the tread and the shoulder are all inclined arc surface.

[0010] Preferably, the arc design ratio of the tread and the shoulder is 0.3-0.8, and the connecting place of the tread and the shoulder is all chamfered transition, which avoids stress concentration of the body and the shoulder, and is beneficial to the balance of the ground force of the tread and the shoulder.

[0011] Preferably, the chamfer positioning point at the junction of the tread and the shoulder is arranged 0.5mm-2mm offset from the two side end points of the tread to the center, the chamfer at the junction of the tread and the shoulder is tangent to the shoulder at the chamfer positioning point, and the radius of the chamfer is R10-R25, the chamfer in the range avoids the problem that the early wear of the shoulder cannot be inhibited due to the angle being too small, and the problem that the running surface width of the tire is changed and the service life is reduced due to the angle being too large.

[0012] Preferably, the inside of the carcass is provided with a cover layer at the position inside the annular air bag, the bottom of the cover layer is provided with a steel cord layer, the bottom of the steel cord layer is provided with a nylon belt layer, and the bottom of the nylon belt layer is provided with a carcass cord layer, the added cover layer provides grip, resists wear, and maintains traction and braking effect under various road conditions, the added steel cord layer can help maintain the shape of the tire, prevent excessive expansion, and maintain stability during high-speed driving, the added nylon belt layer can enhance the lateral stability of the tire, reduce deformation caused by load changes, and the added carcass cord layer can provide overall strength and durability to the tire, and ensure that the tire will not be broken when subjected to pressure and impact.

[0013] (Three) beneficial effects

[0014] Compared with the prior art, the tire structure for inhibiting stress concentration of the tire shoulder has the following beneficial effects:

[0015] The tire structure for inhibiting stress concentration of the tire shoulder adjusts the curvature of the left and right sides of the tread and the curvature of the shoulder, and cooperates with the chamfer design at the junction of the tread and the shoulder, so that the stress generated in the shoulder part of the tire during ground driving can be dispersed, the overall pressure distribution of the tread part is improved while the stress is eliminated, the annular air bag added inside the carcass at the chamfer of the shoulder can absorb and buffer the impact force from the ground during vehicle driving, especially when driving on uneven roads or sharp turns, thereby reducing the direct impact on the shoulder of the tire, reducing stress concentration and potential damage, and the annular air bag can provide additional elasticity to the chamfer of the shoulder, which helps to maintain the contact between the tire and the ground, improves the handling stability of the vehicle during high-speed driving or emergency obstacle avoidance, and reducing stress concentration and impact load can also slow down the wear rate of the shoulder of the tire, thereby prolonging the overall service life of the tire. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The figure is a structural schematic diagram of the utility model;

[0017] Figure 2 The figure is a structural schematic diagram of the carcass of the utility model;

[0018] Figure 3The shoulder stress concentration suppression tire structure is characterized in that: the tire structure comprises a tire body 1, a tire tread 2, a tire shoulder 3, a ring-shaped air bag 4, a cover layer 5, a steel wire cord layer 6, a nylon belt layer 7 and a tire body cord layer 8.

[0019] In the figure: 1, tire body; 2, tire tread; 3, tire shoulder; 4, ring-shaped air bag; 5, cover layer; 6, steel wire cord layer; 7, nylon belt layer; 8, tire body cord layer. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0021] The present application provides a technical scheme, a tire structure for suppressing stress concentration at tire shoulder, comprising a tire body 1, a tire tread 2, a tire shoulder 3, a ring-shaped air bag 4, a cover layer 5, a steel wire cord layer 6, a nylon belt layer 7 and a tire body cord layer 8:

[0022] Please refer to Figure 1 , the tire body 1 is provided with the tire tread 2 on the outer periphery, and the tire shoulder 3 is laid at the connection between the tire body 1 and the tire tread 2;

[0023] Please refer to Figure 2 and Figure 3 , the ring-shaped air bag 4 is inserted into the left and right sides of the tire body 1, the left and right sides of the tire tread 2 and the tire shoulder 3 are all provided with inclined arc surfaces, the arc design ratio of the tire tread 2 and the tire shoulder 3 is 0.3-0.8, the connection between the tire tread 2 and the tire shoulder 3 is all provided with a chamfer transition, the chamfer positioning point at the connection between the tire tread 2 and the tire shoulder 3 is set to be offset by 0.5mm-2mm from the two side endpoints of the tire tread 2 to the center, the chamfer transition at the connection between the tire tread 2 and the tire shoulder 3 is tangent to the tire shoulder 3, the radius of the chamfer is R10-R25, by adjusting the arc of the left and right sides of the tire tread 2 and the arc of the tire shoulder 3 and cooperating with the chamfer design at the connection between the tire tread 2 and the tire shoulder 3, the stress generated at the tire shoulder during the ground driving of the tire can be dispersed, the overall pressure distribution of the tire tread part is improved while the stress is eliminated, the ring-shaped air bag 4 added at the chamfer of the tire shoulder 3 in the tire body 1 can absorb and buffer the impact force from the ground during the driving of the vehicle, especially when the vehicle is driving on uneven road or making sharp turns, the direct impact on the tire is reduced, thereby reducing the stress concentration and potential damage, the ring-shaped air bag 4 can provide additional elasticity to the chamfer of the tire shoulder 3, which helps to maintain the contact between the tire and the ground, improves the control stability of the vehicle during high-speed driving or emergency obstacle avoidance, and reduces the stress concentration and impact load, which can also slow down the wear speed of the tire shoulder 3, thereby prolonging the overall service life of the tire, please refer to Figure 2The inside of the tire body 1 is laid with a cover layer 5 inside the annular air bag 4, the bottom of the cover layer 5 is laid with a steel cord layer 6, the bottom of the steel cord layer 6 is laid with a nylon belt layer 7, and the bottom of the nylon belt layer 7 is laid with a tire body cord layer 8.

[0024] The present scheme can disperse the stress generated by the tire shoulder during the ground driving process by adjusting the curvature of the left and right sides of the tread 2 and the curvature of the shoulder 3, and cooperating with the chamfer design at the connection between the tread 2 and the shoulder 3, and at the same time, the overall pressure distribution of the tread part is improved. The annular air bag 4 added inside the tire body 1 at the chamfer of the shoulder 3 can absorb and buffer the impact force from the ground during vehicle driving, especially on uneven road surfaces or sharp turns, reducing direct impact on the tire, thereby reducing stress concentration and potential damage. The annular air bag 4 can provide additional elasticity to the chamfer of the shoulder 3, which helps to maintain the contact between the tire and the ground, improves the handling stability of the vehicle during high-speed driving or emergency obstacle avoidance, and reduces stress concentration and impact load. The wear rate of the shoulder 3 is also slowed down, thereby prolonging the overall service life of the tire.

[0025] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0026] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A tire structure for inhibiting stress concentration in the shoulder of a tire, comprising: It includes: The tire body (1) is provided with a tire body (1) on the outer periphery of the tire body (1), and the connection between the tire body (1) and the tire body (2) is provided with a shoulder (3). The annular air bag (4) is inserted into the left and right sides of the tire body (1), and the left and right sides of the tire body (2) and the shoulder (3) are provided with inclined arc surfaces.

2. A tire construction for inhibiting stress concentration in the shoulder of a tire as defined in Claim 1, wherein: The arc design ratio of the tire body (2) and the shoulder (3) is 0.3-0.8, and the connection between the tire body (2) and the shoulder (3) is chamfered.

3. A tire construction for inhibiting stress concentration in the shoulder of a tire as defined in Claim 2, wherein: The chamfer positioning point of the tire body (2) and the shoulder (3) is set to be offset by 0.5mm-2mm from the two side endpoints of the tire body (2) to the center, the chamfer of the tire body (2) and the shoulder (3) is tangent to the shoulder (3), and the radius of the chamfer is R10-R25.

4. A tire construction for inhibiting stress concentration in the shoulder of a tire as defined in Claim 1, wherein: The inside of the tire body (1) is provided with a cover layer (5) inside the annular air bag (4), the bottom of the cover layer (5) is provided with a steel wire cord layer (6), the bottom of the steel wire cord layer (6) is provided with a nylon belt layer (7), and the bottom of the nylon belt layer (7) is provided with a tire body cord layer (8).

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