Tire crown anti-breaking block structure

Abstract

The utility model discloses a tire crown anti-breaking block structure, and relates to the technical field of tires. According to the technical scheme, the tire comprises a plurality of reinforcing layers which are arranged on the crown of the tire at intervals in the circumferential direction, the reinforcing layers are arranged on the outermost belted layer and located at the bottoms of transverse pattern blocks, longitudinal pattern grooves are formed between the transverse pattern blocks in the radial direction of the tire, and the reinforcing layers transversely cover all the longitudinal pattern grooves. According to the utility model, the pattern change is reduced as much as possible, and the discontinuous reinforcing layer is embedded under the pattern block, so that the overall rigidity of the pattern is increased, the overall transverse rigidity of the pattern is enhanced, the transverse deformation of the pattern is reduced, and the purpose of reducing crown block breaking is achieved.

Description

Technical Field

[0001] This utility model relates to the field of tire technology, specifically to a tire crown anti-breakage structure. Background Technology

[0002] Traditional tire tread designs typically employ two methods: reinforcing ribs and angled grooves. Reinforcing ribs are raised sections in the tire tread pattern, usually used to enhance the strength and rigidity of the tread. However, the presence of reinforcing ribs significantly increases the thickness of the groove bottom in their respective areas, and because they occupy space, the corresponding groove depth decreases. Therefore, reinforcing ribs increase the friction area between the tire and the ground, leading to increased heat generation and potentially causing tire overheating. Furthermore, the reduced groove depth decreases tire grip, especially on wet or muddy surfaces, affecting traction performance. Shallower grooves also hinder the removal of stones and mud, easily causing tire blockage and impacting driving safety. Angled grooves, on the other hand, refer to grooves that are angled rather than perpendicular to the tire surface. Angled grooves help drain mud and water, improving tire performance on muddy roads. However, angled grooves reduce the tire's longitudinal stiffness, affecting stability and handling; and reduced longitudinal stiffness may also make the tire more prone to deformation during driving, thus affecting its lifespan.

[0003] Therefore, the research and development direction should focus on how to increase the overall rigidity of the tread pattern and reduce lateral deformation while minimizing tread pattern variations, thereby reducing crown breakage. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a tire crown anti-breakage structure. While minimizing the changes in the tread pattern, a discontinuous reinforcing layer is embedded under the tread block to increase the overall rigidity of the tread pattern. This enhances the lateral rigidity of the tread pattern and reduces the lateral deformation of the tread pattern, thereby achieving the purpose of reducing crown breakage.

[0005] The technical solution of this utility model is as follows:

[0006] The tire crown anti-breakage block structure includes several reinforcing layers spaced circumferentially on the tire crown. The reinforcing layers are located on the outermost belt layer and at the bottom of the lateral tread blocks. Along the radial direction of the tire, longitudinal tread grooves are provided between the lateral tread blocks, and the reinforcing layers cover all the longitudinal tread grooves laterally.

[0007] Preferably, the distance g between the two ends of the reinforcing layer and the endpoint of the outermost belt layer is ≥10mm.

[0008] Preferably, the radial length d of the reinforcing layer and the tire running surface width c satisfy 0.4c≤d≤0.6c.

[0009] Preferably, the tire track pitch b, the shoulder lateral tread block width e, and the reinforcing layer circumferential width satisfy 0.5b ≤ f ≤ e.

[0010] Preferably, transverse tread grooves are provided between the transverse tread blocks along the tire circumference, and the angle α between the reinforcing layer and the transverse tread groove wall is ≤10°.

[0011] Preferably, the reinforcing layer is made of nylon.

[0012] Compared with the prior art, this utility model has the following advantages:

[0013] 1. The tire crown anti-breakage block structure of this utility model minimizes tread pattern changes while embedding a discontinuous reinforcing layer under the tread blocks, thereby increasing the overall rigidity of the tread pattern, enhancing the lateral rigidity of the tread pattern, reducing lateral deformation of the tread pattern, and thus achieving the purpose of reducing crown breakage.

[0014] 2. By adopting the structural design of this utility model, the tire can effectively solve the problem of high proportion of external damage at the bottom of the groove without changing the tire tread pattern; at the same time, the mold modification cost is low, and it hardly increases the risk of heat generation, which can reduce external damage problems, improve the overall service life, and save costs for customers. Attached Figure Description

[0015] Figure 1 This is a schematic diagram showing the location of the anti-breakage block structure on the tire crown of this utility model.

[0016] Figure 2 This is a schematic diagram of the anti-breakage block structure of the tire crown of this utility model on the tire tread.

[0017] In the diagram, 1 is the reinforcing layer; 2 is the belt layer; 3 is the transverse patterned block; 4 is the longitudinal patterned groove; and 5 is the transverse patterned groove. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model.

[0019] Example 1

[0020] like Figure 1-2 As shown, the tire has belt layers 1#, 2#, 3# and 4# arranged sequentially from the inside to the outside, and the lateral tread blocks 3 on the tire tread are arranged in a Z-shape. Along the tire circumference, there are lateral tread grooves 5 between the lateral tread blocks 3; along the tire radial direction, there are longitudinal tread grooves 4 between the lateral tread blocks 3.

[0021] The anti-breakage block structure of the tire crown in this embodiment, such as Figure 1-2 As shown, the tire includes several reinforcing layers 1 arranged circumferentially at intervals on the crown. The reinforcing layers 1 are made of nylon cord fabric. The reinforcing layers 1 are arranged on the 4# belt layer 2 and located at the bottom of the transverse tread blocks 3. The reinforcing layers 1 cover all the longitudinal tread grooves 4 laterally, thereby connecting the transverse tread blocks 3 cut by the longitudinal tread grooves 4 to play a reinforcing role.

[0022] At the same time, such as Figure 1 As shown, the distance g between the two ends of the reinforcing layer 1 and the end point of the outermost belt layer 2 is ≥10mm to prevent material displacement during rolling and reduce overall durability.

[0023] like Figure 2 As shown, the radial length d of the reinforcing layer 1 and the tire running surface width c satisfy 0.4c≤d≤0.6c, so as to ensure that the reinforcing layer 1 provides sufficient reinforcement without affecting the shoulder performance.

[0024] To provide sufficient lateral rigidity while ensuring that the thickness of the adhesive at the bottom of the groove is not affected and to prevent cracking at the bottom of the lateral patterned groove 5, in this embodiment, as follows: Figure 2 As shown, the tire pitch b, the width e of the shoulder lateral tread block 3, and the circumferential width of the reinforcing layer 1 satisfy 0.5b ≤ f ≤ e, so that the reinforcing layer 1 is completely covered by the lateral tread block 3.

[0025] Single-interval patterns generally have a certain angle. To simplify construction, patterns with similar angles can be combined, such as... Figure 2 As shown, ensure that the angle α between the reinforcing layer 1 and the wall of the transverse patterned groove 5 is ≤10°, so that the reinforcing layer 1 has sufficient space.

[0026] By adopting the structure of this utility model, the tire can effectively solve the problem of high proportion of external damage at the bottom of the groove without changing the tire tread pattern; at the same time, the mold modification cost is low, and it hardly increases the risk of heat generation, which can reduce external damage problems, improve the overall service life, and save costs for customers.

Claims

1. A tire crown anti-breakage structure, characterized in that, It includes several reinforcing layers (1) arranged circumferentially at intervals on the crown of the tire. The reinforcing layers (1) are arranged on the outermost belt layer (2) and located at the bottom of the lateral tread blocks (3). Along the radial direction of the tire, there are longitudinal tread grooves (4) between the lateral tread blocks (3). The reinforcing layers (1) cover all the longitudinal tread grooves (4) laterally.

2. The tire crown anti-breakage block structure as described in claim 1, characterized in that, The distance g between the two ends of the reinforcing layer (1) and the endpoint of the outermost belt layer (2) is ≥10mm.

3. The tire crown anti-breakage block structure as described in claim 1, characterized in that, The radial length d of the reinforcing layer (1) and the tire running surface width c satisfy 0.4c≤d≤0.6c.

4. The tire crown anti-breakage block structure as described in claim 1, characterized in that, The tire section b, the width e of the shoulder lateral tread block (3), and the circumferential width of the reinforcing layer (1) satisfy 0.5b ≤ f ≤ e.

5. The tire crown anti-breakage block structure as described in claim 1, characterized in that, Along the tire circumference, there are transverse tread grooves (5) between the transverse tread blocks (3), and the angle a between the reinforcing layer (1) and the wall of the transverse tread groove (5) is ≤10°.

6. The tire crown anti-breakage block structure as described in claim 1, characterized in that, The reinforcing layer (1) is made of nylon.

Images