Tire capable of improving sidewall protection performance

Abstract

The utility model discloses a tire capable of improving the sidewall protection performance, which comprises a tire sidewall, a tire crown, a first bulge, a second bulge and a third bulge, the first bulge is arranged at the starting part of an arc transition section from the tire sidewall to the tire crown, and the second bulge and the third bulge are both arranged on the arc transition section from the tire sidewall to the tire crown. Compared with the prior art, due to the additional arrangement of the first bulge, the second bulge and the third bulge, the thickness of the connecting part of the tire sidewall and the tire crown is increased, the design of the anti-friction part of the tire is improved, and the protection effect of friction between the tire sidewall and curbstone is improved; the problems of rubber material abrasion and cord thread exposure are effectively avoided, and the service life of the tire is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of tires, and in particular to a tire with improved sidewall protection performance. Background Art

[0002] Tires are one of the most important components of a car. Their main functions are: supporting the entire weight of the vehicle and bearing the load of the car; transmitting traction and braking torque to ensure the adhesion between the wheels and the road; reducing and absorbing the vibration and impact of the car when driving, preventing car parts from severe vibration and early damage, adapting to the high-speed performance of the vehicle and reducing noise during driving, ensuring driving safety, handling stability, comfort and energy saving.

[0003] Existing tire sidewall designs usually adopt a tangent arc design at both ends, with the upper sidewall portion having a basically uniform thickness and a slow transition to maintain a certain degree of flexural and deformation resistance. However, buses and passenger vehicles often used on urban roads need to frequently stop and start close to the roadside, which makes them prone to friction with curbstones. Existing sidewall designs have poor protection against curbstone friction, and are prone to rubber wear and cord leakage, which cannot meet usage requirements. Therefore, a tire with improved sidewall protection performance is needed to meet the needs. Utility Model Content

[0004] The purpose of the present invention is to provide a tire with improved sidewall protection performance, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a tire with improved sidewall protection performance, comprising a tire sidewall, a tire crown, a first protrusion, a second protrusion and a third protrusion, wherein the first protrusion is arranged at the starting position of the arc transition section from the tire sidewall to the tire crown, the second protrusion and the third protrusion are both arranged on the arc transition section from the tire sidewall to the tire crown, and the second protrusion is located between the first protrusion and the third protrusion.

[0006] Preferably, the thickness of the first protrusion, the second protrusion and the third protrusion are all 2-3 mm.

[0007] Preferably, a first arc transition edge is provided at the starting position of the arc transition section between the first protrusion and the tire sidewall to the tire crown.

[0008] Preferably, a first transition groove is provided at the connection portion between the first protrusion and the second protrusion, and the depth of the first transition groove is the same as the thickness of the first protrusion.

[0009] Preferably, a second transition groove is provided at the connection portion between the second protrusion and the third protrusion, and the depth of the second transition groove is less than the thickness of the second protrusion.

[0010] Preferably, a second arc transition edge is provided at the connection between the third protrusion and the crown of the tire.

[0011] The beneficial effects of the utility model are:

[0012] The utility model increases the thickness of the connection between the tire sidewall and the tire crown by adding the first protrusion, the second protrusion and the third protrusion compared with the prior art, improves the design of the tire anti-friction part, improves the protection effect of the sidewall against friction with the curb, effectively avoids the problems of rubber wear and cord exposure, and increases the service life of the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of a tire with improved sidewall protection performance proposed by the present invention;

[0014] Figure 2 This is a schematic diagram of a partially enlarged structure of a tire for improving sidewall protection performance proposed by the present invention.

[0015] In the figure: 1, tire sidewall; 2, tire crown; 3, first protrusion; 4, second protrusion; 5, third protrusion; 6, first arc transition edge; 7, first transition groove; 8, second transition groove; 9, second arc transition edge. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] Reference Figure 1-2 A tire with improved sidewall protection performance includes a tire sidewall 1, a tire crown 2, a first protrusion 3, a second protrusion 4 and a third protrusion 5. The first protrusion 3 is arranged at the starting position of the arc transition section from the tire sidewall 1 to the tire crown 2, the second protrusion 4 and the third protrusion 5 are both arranged on the arc transition section from the tire sidewall 1 to the tire crown 2, and the second protrusion 4 is located between the first protrusion 3 and the third protrusion 5.

[0018] By adding the first protrusion 3, the second protrusion 4 and the third protrusion 5, compared with the existing technology, the thickness of the connection between the tire sidewall 1 and the tire crown 2 is increased, the design of the tire anti-friction part is improved, the protection effect of the sidewall against friction with the curb is improved, and the problems of rubber wear and cord exposure are effectively avoided, thereby increasing the service life of the tire.

[0019] Specifically, in this embodiment, the thickness of the first protrusion 3, the second protrusion 4 and the third protrusion 5 are all 2-3 mm.

[0020] Specifically, in this embodiment, a first arc transition edge 6 is provided at the starting portion of the arc transition section between the first protrusion 3 and the tire sidewall 1 to the tire crown 2 .

[0021] Specifically, in this embodiment, a first transition groove 7 is provided at the connection portion between the first protrusion 3 and the second protrusion 4 . The depth of the first transition groove 7 is the same as the thickness of the first protrusion 3 .

[0022] Specifically, in this embodiment, a second transition groove 8 is provided at the connection portion between the second protrusion 4 and the third protrusion 5 , and the depth of the second transition groove 8 is less than the thickness of the second protrusion 4 .

[0023] Specifically, in this embodiment, a second arc transition edge 9 is provided at the connection between the third protrusion 5 and the top of the tire crown 2 .

[0024] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A tire with improved sidewall protection performance, comprising a tire sidewall (1), a tire crown (2), a first protrusion (3), a second protrusion (4) and a third protrusion (5), characterized in that: The first protrusion (3) is arranged at the starting position of the circular arc transition section from the tire sidewall (1) to the tire crown (2), the second protrusion (4) and the third protrusion (5) are both arranged on the circular arc transition section from the tire sidewall (1) to the tire crown (2), and the second protrusion (4) is located between the first protrusion (3) and the third protrusion (5).

2. The tire with improved sidewall protection performance according to claim 1, characterized in that: The thickness of the first protrusion (3), the second protrusion (4) and the third protrusion (5) are all 2-3 mm.

3. The tire with improved sidewall protection performance according to claim 1, characterized in that: A first arc transition edge (6) is provided between the first protrusion (3) and the starting position of the arc transition section from the tire sidewall (1) to the tire crown (2).

4. The tire with improved sidewall protection performance according to claim 1, characterized in that: A first transition groove (7) is provided at the connection portion between the first protrusion (3) and the second protrusion (4), and the depth of the first transition groove (7) is the same as the thickness of the first protrusion (3).

5. The tire with improved sidewall protection performance according to claim 1, characterized in that: A second transition groove (8) is provided at the connection portion between the second protrusion (4) and the third protrusion (5), and the depth of the second transition groove (8) is less than the thickness of the second protrusion (4).

6. The tire with improved sidewall protection performance according to claim 1, characterized in that: A second arc transition edge (9) is provided at the connection between the third protrusion (5) and the top of the tire crown (2).

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