Pattern rib structure for preventing tire groove bottom cracks

Abstract

The utility model discloses a pattern rib structure for preventing cracks at the groove bottom of a tire, which comprises a tire tread, and pattern grooves and pattern blocks are arranged on the tire tread. According to the utility model, the reinforcing ribs with special shapes are designed at the groove bottom of the pattern to replace the traditional arc transition, so that the pressure at the edge of the groove bottom can be dispersed, the strength of the pattern block at the groove bottom can be enhanced and the tensile deformation of the groove bottom can be reduced in the running process of the tire, thereby improving the fatigue resistance of the groove bottom of the pattern, reducing the generation of cracks at the groove bottom and prolonging the service life of the tire. The tire service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of tire groove bottom ribs, in particular to a rib structure for preventing tire groove bottom cracks. Background Art

[0002] Generally, when a tire is driving on a road at high speed, the shape of the contact surface between the road and the tire surface is constantly changing. The tire is affected by the uneven road surface, and the pressure on the bottom of the tire tread groove changes the most, especially the large compression and tensile deformation process between the groove bottom edge and the tread block. Under the repeated action of pressure and tension for a long time, the tire groove bottom is prone to fatigue cracking. Based on this, a tread rib structure for preventing cracks in the tire groove bottom is now provided, which can eliminate the disadvantages of the existing device. Utility Model Content

[0003] The utility model aims to provide a tread rib structure for preventing cracks in the tire groove bottom, so as to solve the problem in the background technology that a large compression and tensile deformation process occurs between the groove bottom edge and the tread block, and fatigue cracks are easily generated in the tire groove bottom under the repeated action of pressure and tension for a long time.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A tread rib structure for preventing cracks at the bottom of a tire groove, comprising:

[0006] A tire tread, wherein grooves and blocks are provided on the tire tread;

[0007] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In an optional solution: a groove bottom is provided on the tread groove.

[0009] In an optional solution: patterned groove walls are provided on both sides of the groove bottom, and a center line is provided in the middle of the groove bottom.

[0010] In an optional solution: reinforcing ribs are symmetrically provided between the groove bottom and the groove wall on both sides of the center line.

[0011] In an optional solution: the width of the reinforcing rib is greater than or equal to 2 mm.

[0012] In an optional solution: the arc radius R1 connecting the groove wall and the reinforcing rib is 1 mm to 5 mm.

[0013] In an optional solution, the arc radius R2 where the groove bottom connects with the reinforcing rib is 3 mm to 5 mm.

[0014] In an optional solution: the arc radius R1 matches the tire size, and the arc radius R2 matches the groove bottom width and groove bottom depth.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The utility model replaces the traditional arc transition with a specially shaped reinforcing rib at the bottom of the tread groove. During the running of the tire, the pressure at the edge of the groove bottom can be dispersed, and the strength of the tread blocks at the groove bottom can be strengthened, and the tensile deformation of the groove bottom can be reduced, thereby improving the fatigue resistance of the groove bottom, reducing the generation of cracks at the groove bottom, and improving the service life of the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure in which reinforcing ribs are arranged alternately at the bottom of the groove according to the utility model.

[0018] Figure 2 It is a structural schematic diagram of the reinforcing rib curve of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the AA section of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the reinforcement rib size of the utility model.

[0021] Figure 5 It is a structural schematic diagram of the BB section of the utility model.

[0022] Figure 6 It is a schematic diagram of the 3D structure of the reinforcing rib of the utility model.

[0023] In the figure: 1. Groove wall; 2. Center line; 3. Reinforcement rib; 4. Groove bottom. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] In one embodiment, Figure 1-Figure 6 As shown, a rib structure for preventing cracks at the bottom of a tire groove comprises a tire tread, wherein the tire tread is provided with tread grooves and tread blocks, the tire tread is used to contact the ground, and when the road surface is uneven, the tread grooves are used to withstand different pressures.

[0026] In one embodiment, Figure 6As shown, the groove is provided with a groove bottom 4. When the road surface is uneven, large compression and tensile deformation will occur between the groove edge and the pattern block. Under the repeated action of pressure and tension for a long time, the groove bottom 4 is prone to cracking. The groove bottom 4 is used to absorb these tensions and pressures.

[0027] In one embodiment, Figure 6 As shown, patterned groove walls 1 are provided on both sides of the groove bottom 4, and a center line 2 is provided in the middle of the groove bottom 4, and the center line 2 is used to facilitate the symmetrical installation of the reinforcing ribs 3.

[0028] In one embodiment, Figure 6 As shown, reinforcing ribs 3 are symmetrically arranged between the groove bottom 4 and the groove wall 1 on both sides of the center line 2. The reinforcing ribs 3 are used to enhance the bearing capacity of the groove bottom 4. During the running of the tire, the pressure on the edge of the groove bottom 4 can be dispersed, and the strength of the pattern block can also be strengthened, and the tensile deformation of the groove bottom 4 can be reduced, thereby improving the fatigue resistance of the groove bottom 4, reducing the generation of cracks in the groove bottom 4, and improving the service life of the tire.

[0029] In one embodiment, Figure 1-Figure 6 As shown, the width of the reinforcing rib 3 is greater than or equal to 2 mm, which facilitates the use of the reinforcing rib 3.

[0030] In one embodiment, Figure 2-Figure 3 As shown, the arc radius R1 connecting the groove wall 1 and the reinforcing rib 3 is 1mm to 5mm, which makes it easy for the reinforcing rib 3 to play a role, disperse the pressure when the pattern block is compressed and deformed, and transmit the pressure on the edge of the groove bottom 4 to the entire groove bottom 4, avoiding the generation of large stress locally. When the pattern block is longitudinally stretched, it can strengthen the strength of the groove bottom 4 and avoid the groove bottom 4 from being torn when the stretching is too large.

[0031] In one embodiment, Figure 2-Figure 3 As shown, the arc radius R2 of the groove bottom 4 connecting the reinforcing rib 3 is 3 mm to 5 mm, which can effectively reduce the fatigue strength of the groove bottom, thereby greatly extending the service life of the tire and improving the safety of the tire.

[0032] In one embodiment, Figure 1-Figure 6 As shown, the arc radius R1 matches the tire size, and the arc radius R2 matches the width and depth of the groove bottom 4. By setting appropriate arc radius R1 and arc radius R2, the reinforcing rib 3 can play a maximum role.

[0033] The above embodiment discloses a rib structure for preventing cracks at the bottom of a tire groove, wherein the tire tread is used to contact the ground. When the road surface is uneven, the rib groove is used to withstand different pressures. When the road surface is uneven, large compression and tensile deformations will occur between the edge of the rib groove and the tread block. Under the repeated action of pressure and tension for a long time, the groove bottom 4 is prone to cracking. The groove bottom 4 is used to absorb these tensions and pressures. The reinforcing rib 3 is provided to enhance the bearing capacity of the groove bottom 4. During the running of the tire, the pressure at the edge of the groove bottom 4 can be dispersed. At the same time, the strength of the tread block can also be strengthened, and the tensile deformation of the groove bottom 4 can be reduced, thereby improving the fatigue resistance of the groove bottom 4, reducing the occurrence of cracks at the groove bottom 4, and improving the service life of the tire. By setting appropriate arc radius R1 and arc radius R2, it is convenient to maximize the role of the reinforcing rib 3, effectively reducing the fatigue strength of the groove bottom, thereby greatly extending the service life of the tire and improving the safety of the tire.

[0034] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A rib structure for preventing cracks at the bottom of a tire groove, comprising a tire tread, characterized in that: The tire tread is provided with grooves and blocks; The groove is provided with a groove bottom (4); Patterned groove walls (1) are provided on both sides of the groove bottom (4), and a center line (2) is provided in the middle of the groove bottom (4); Reinforcing ribs (3) are symmetrically provided between the groove bottom (4) and the pattern groove wall (1) on both sides of the center line (2).

2. A tread rib structure for preventing cracks at the bottom of a tire groove according to claim 1, characterized in that: The width of the reinforcing rib (3) is greater than or equal to 2 mm.

3. A rib structure for preventing cracks at the bottom of a tire groove according to claim 2, characterized in that: The radius R1 of the arc connecting the groove wall (1) and the reinforcing rib (3) is 1 mm to 5 mm.

4. A tread rib structure for preventing cracks at the bottom of a tire groove according to claim 3, characterized in that: The arc radius R2 of the groove bottom (4) connecting the reinforcing rib (3) is 3 mm to 5 mm.

5. A tread rib structure for preventing cracks at the bottom of a tire groove according to claim 4, characterized in that: The arc radius R1 matches the size of the tire, and the arc radius R2 matches the width and depth of the groove bottom (4).

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