WO2012159256A1 - Tread pattern structure of tire - Google Patents

Abstract

A tread pattern structure of a tire includes middle pattern blocks and shoulder pattern blocks located at two sides. The middle pattern blocks include strip-shaped pattern blocks and oblique pattern blocks. At least one strip-shaped pattern block is continuously formed on the tread center, and plural pattern main grooves symmetrically intersect and obliquely extend outward from the two sides of the strip-shape pattern block. The oblique pattern blocks are formed between pattern main grooves. Pattern transverse assistant grooves connected with the pattern main grooves are distributed on the shoulder pattern blocks and the oblique pattern blocks. The strip-shaped pattern blocks decrease tire rolling resistance, reduce energy consumption, and improve the straight running stability. The oblique pattern blocks improve the ride comfort and reduce the tire noise. The shoulder pattern blocks inhibit the eccentric abrasion of the running tire on land. The pattern main grooves and the shoulder pattern blocks have good drainage performance and improve the tire trailing characteristics. The tire improves the handling characteristic when driving, the stability of a running tire on dry and wet land and traveling comfort, thereby enabling all-terrain vehicle with good all-around performance when riding on paved road.

Description

Tire tread pattern structure Technical field

The present invention relates to a tire, and more particularly to an all-terrain vehicle (ALLTerrainVehicle) tire tread pattern structure for use on paved roads.

Background technique

With the widespread popularity of paving conditions, the performance requirements for driving in the market are further improved. In addition to the basic wear resistance and drainage requirements, it is also required to have ride comfort and stability, in addition to noise and beauty. The requirements are also getting more and more attention from consumers.

Traditionally used in the tread pattern structure on the pavement, the ALLTerrainVehicle is used as a special vehicle, which is often used in mud, sand, rock, woodland and other evil roads. In order to improve the traction performance under special driving road surface, a tread pattern setting of a block pattern (BLOCK) is often used. However, with the improvement of the performance requirements of the all-terrain vehicles on the pavement, the original BLOCK tread pattern setting can not meet the performance requirements of the users, so in order to improve the overall performance of the all-terrain vehicle on the pavement, this case This is the result.

Summary of the invention

The object of the present invention is to provide a tire tread pattern structure, which can effectively increase the handling of the vehicle driving, improve the running stability of the tire under the wet and dry road surface, and improve the riding comfort.

To achieve the above object, the solution of the present invention is:

A tire tread pattern structure comprising a middle block and shoulder blocks on both sides, the middle block comprising a strip block and a diagonal block, the strip block being continuously formed at least in the center of the tread The two sides of the strip are symmetrically staggered and extend obliquely outward to form a plurality of main grooves, and a diagonal block is formed between the main grooves; the shoulder block and the diagonal block are distributed The pattern lateral groove is connected to the main groove of the pattern.

The strip blocks are straight strips.

The strips are wavy or continuously curved.

The lateral width of the strip block is 5% to 25% of the tread width.

The width of the main groove of the pattern is 5 to 15 mm.

The angle between the main groove of the pattern and the circumferential center plane of the tire is less than 45°.

The angle between the main groove of the pattern and the circumferential center plane of the tire is preferably less than 30°.

The angle between the lateral sub-groove of the pattern and the axial direction of the tire is less than 45°.

The angle between the lateral sub-groove of the pattern and the axial direction of the tire is preferably less than 30°.

The length of the main groove of the pattern is greater than the length of the ground in the direction of travel when the tire is running.

After adopting the above scheme, the central strip block in the tread pattern of the invention effectively reduces the rolling resistance of the tire, reduces the energy consumption, and at the same time improves the stability of the tire in straight running; and the inclined block can effectively improve the tire Smoothness during driving, and can reduce the noise of the tire; the shoulder block effectively suppresses the partial wear caused by the tire when it is grounded, and improves the service life of the tire; the main groove of the pattern allows the tire to smoothly drain the water when driving on the wetland; The shoulder block makes the whole tire have good drainage performance, and can also improve the traction of the tire and improve the acceleration performance of the tire. In combination with the above-mentioned functional features, the tire can increase the handling of the driving, improve the driving stability of the tire under the wet and dry road surface, improve the ride comfort, and make the all-terrain vehicle exhibit comprehensive performance on the pavement.

DRAWINGS

Figure 1 is a perspective view of a tire of the present invention;

Figure 2 is a front elevational view of the tire of the present invention;

Figure 3 is a schematic view showing the configuration of a tire tread pattern of the present invention;

4A is a schematic view of Embodiment 2 of a strip block of the present invention;

4B is a schematic view of Embodiment 3 of the strip block of the present invention;

4C is a schematic view of Embodiment 4 of the strip block of the present invention.

Main component symbol:

Tread 1 shoulder 2 strips 10

Oblique block 20 shoulder block 30 pattern main groove 40

Pattern lateral auxiliary groove 50

The angle between the main groove of the pattern and the circumferential center plane of the tire

The angle between the lateral minor groove of the pattern and the axial direction of the tire

detailed description

As shown in FIGS. 1 to 3, the present invention discloses a tire tread pattern structure including a middle block disposed on a tread 1 and a shoulder block 30 on both sides of the near shoulder 2, The middle block includes a strip block 10 and a diagonal block 20;

A continuous strip block 10 is disposed at a circumferential center line of the tread, and the lateral width W1 of the strip block 10 is designed to be 5% to 25% of the width W of the tire tread 1, and the design can be effectively reduced. The rolling resistance of the tire reduces the energy consumption and at the same time improves the stability of the tire in straight running. If the lateral width W1 is less than 5% tread width W, the stability of the straight running of the tire will decrease if the lateral width W1 is greater than 25%. When the tread width is W, the tire does not discharge water well when it is running on a wet road surface, which affects the wet handling of the tire.

The strip block 10 may be designed as a single or a plurality of continuous blocks, or may be a wave shape, a continuous bent shape or a straight strip shape as shown in FIGS. 4A, 4B, and 4C.

The two sides of the strip block 10 are symmetrically staggered and extend obliquely outwardly to form a plurality of pattern main grooves 40. A diagonal block 20 is formed between each pattern main groove 40, and the inclined block 20 adopts a progressive type. The grounding method is designed to effectively improve the smoothness of the tire while driving, to give the driver a more comfortable feeling and to reduce the noise of the tire.

The shoulder block 30 is designed with a high-strength block, that is, a block design with a high land ratio, which increases the density of the blocks. Increasing the strength of the overall block can effectively suppress the partial wear of the tire when it is grounded and improve the service life of the tire.

The pattern main groove 40 is designed in a longitudinal direction, that is, the main body is designed in the tire circumferential direction, and the length thereof is designed to be greater than 100% of the grounding length in the traveling direction when the tire is running. When the length of the pattern main groove 40 is less than 100% of the grounding length in the traveling direction when the tire is running, the tire cannot smoothly discharge the water when traveling on the wet land, which causes the tire to float and affect the driving safety of the tire. The angle α between the pattern main groove 40 and the circumferential center plane of the tire should be less than 45°, preferably less than 30°. The design of the main groove 40 of the pattern can effectively discharge water and improve the wet performance of the tire. If the angle α is designed to be greater than 45°, the anti-slip ability of the tire when cornering is lowered, and the rigidity of the tire shoulder 2 is affected, resulting in a decrease in the traction performance of the tire. The longitudinal width of the longitudinal main groove 40 is 5-15 mm. If the groove width of the main groove 40 is less than 5 mm, the wet drainage of the tire will be affected. If the groove width is greater than 15 mm, the overall wear performance of the tire will be lowered. .

A lateral lateral auxiliary groove 50 communicating with the main groove 40 is distributed on the shoulder block 30 and the inclined block 20, and the lateral auxiliary groove 50 adopts a lateral design manner, that is, a manner in which the main body is designed along the tire axial direction. The angle β with the axial direction of the tire is less than 45°, preferably less than 30°. If the angle β design is greater than 45°, it will affect the traction performance of the tire. The lateral auxiliary groove 50 is evenly distributed in the tire circumferential direction, and penetrates between the main groove 40 of the tread 1 to make the whole tire have good drainage performance, and can also improve the traction of the tire and improve the acceleration performance of the tire. .

Therefore, the design of the tread pattern can increase the handling of the driving, improve the driving stability of the tire under the wet and dry road surface, improve the riding comfort, and make the all-terrain vehicle show comprehensive excellent on the pavement road. performance.

Claims (10)

1. A tire tread pattern structure, comprising: a middle block and a shoulder block on both sides, wherein the middle block comprises a strip block and a diagonal block, and the strip block is formed continuously at least one piece In the center of the tread, the two sides of the strip are symmetrically staggered outwardly and obliquely extending out of a plurality of main grooves, and a diagonal block is formed between the main grooves of each pattern; shoulder blocks and diagonal blocks A lateral sub-ditch is connected to the main groove of the pattern.
2. The tire tread pattern structure according to claim 1, wherein the strip blocks are straight strips.
3. The tire tread pattern structure according to claim 1, wherein the strip blocks are wavy or continuously bent.
4. The tire tread pattern structure according to claim 1, 2 or 3, wherein the lateral width of the strip block is 5% to 25% of the tread width.
5. The tire tread pattern structure according to claim 1, wherein the width of the main groove of the pattern is 5 to 15 mm.
6. The tire tread pattern structure according to claim 1, wherein the angle between the main groove of the pattern and the center plane of the tire circumferential direction is less than 45°.
7. The tire tread pattern structure according to claim 6, wherein the angle between the main groove of the pattern and the center plane of the tire circumferential direction is preferably less than 30°.
8. The tire tread pattern structure according to claim 1, wherein the angle between the lateral minor groove of the pattern and the axial direction of the tire is less than 45°.
9. The tire tread pattern structure according to claim 8, wherein the angle between the lateral minor groove of the pattern and the axial direction of the tire is preferably less than 30°.
10. The tire tread structure according to claim 1, wherein the length of the main groove of the pattern is greater than the length of the ground in the traveling direction when the tire is running.

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