Tire tread structure and tire with same

Abstract

The utility model relates to a tire tread structure which comprises a tire pattern part surrounding in the circumferential direction of a tire body, and the tire pattern part comprises a central pattern block located in the middle, a first tire shoulder pattern block located on one side of the central pattern block and a second tire shoulder pattern block located on the other side of the central pattern block; first circumferential grooves which are arranged in a surrounding manner in the circumferential direction of the tire main body are formed between the central pattern block and the first tire shoulder pattern block and between the central pattern block and the second tire shoulder pattern block; the central pattern block is further provided with a plurality of second circumferential grooves symmetrically distributed in the circumferential direction of the tire body, and the circumferential included angles between the first circumferential grooves and the tire and between the second circumferential grooves and the tire are different; the tire pattern part further comprises a plurality of lateral grooves arranged in the circumferential direction of the tire body, the lateral grooves are arranged at unequal intervals, the lateral grooves comprise the first lateral grooves and the second lateral grooves, and the first lateral grooves and the second lateral grooves are symmetrically distributed in the circumferential direction of the tire body. Therefore, the tire tread structure has good control performance, abrasion performance, riding and driving comfort, lubricating performance and ice and snow road gripping performance, and the comprehensive performance is excellent.

Description

TECHNICAL FIELD

[0001] The present application relates to the tire technical field, and particularly relates to a tire tread structure and a tire with the same. BACKGROUND

[0002] In today's increasingly developed highway traffic, the driving safety of automobiles is highly valued by countries all over the world, and the use safety of tires, as the direct contact component of automobiles and road surface, is indispensable. In many developed countries in Europe and America, the tires used on automobiles are subject to mandatory regulations due to the change of road conditions caused by climate change throughout the year, such as the use of winter pattern tires in winter. Under the current global warming environment, the sales volume of winter tires will gradually decrease, forcing the tire industry to make innovative design of the pattern style in view of this situation. Therefore, the all-season tire that meets the use in the same season has emerged as the times require.

[0003] The all-season tire needs to meet various road conditions and seasonal use, and therefore, the all-season tire needs to have excellent comprehensive performance. In addition, the all-season tire can reduce the repeated purchase of summer tires and winter tires, which will greatly reduce the burden of consumers and the maintenance cost of tires, and meet the growing demands of consumers for environmental protection and cost saving. However, the current all-season tires cannot well balance the handling performance, wear performance, ride comfort, lubrication performance and ice and snow road grip performance. Therefore, it is currently difficult to develop an all-season tire with excellent comprehensive performance. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to solve at least one of the above technical problems in the prior art. To this end, the purpose of the present application is to provide an all-season tire with excellent comprehensive performance, which can meet various road conditions and seasonal use.

[0005] Therefore, the first aspect of the present application provides a tire tread structure, which comprises a tire pattern portion surrounding the circumference of a tire body,

[0006] The tire pattern portion comprises a central pattern block located in the middle, a first shoulder pattern block located on one side of the central pattern block, and a second shoulder pattern block located on the other side of the central pattern block; wherein the central pattern block and the first shoulder pattern block and the second shoulder pattern block are each provided with a first circumferential groove surrounding the circumference of the tire body;

[0007] Wherein the central pattern block is further provided with a plurality of second circumferential grooves symmetrically distributed along the circumference of the tire body, and the first circumferential groove and the second circumferential groove have different angles with the circumference of the tire;

[0008] The tire pattern part further comprises a plurality of lateral grooves arranged along the circumferential direction of the tire body, and the lateral grooves are arranged at unequal distances from each other, wherein the lateral grooves comprise first lateral grooves and second lateral grooves; the first lateral grooves are arranged on the first shoulder pattern blocks along the axial direction of the tire body and extend through the first circumferential grooves into the central pattern block; the second lateral grooves are arranged on the second shoulder pattern blocks along the axial direction of the tire body and extend through the second circumferential grooves into the central pattern block; and the first lateral grooves and the second lateral grooves are symmetrically distributed along the circumferential direction of the tire body.

[0009] The present application can effectively reduce the rigidity of the tire tread, increase the contact area between the tire and the ground, and improve the ice and snow road gripping performance of the tire by arranging the first circumferential grooves, the second circumferential grooves, and the lateral grooves along the circumferential direction of the tire body. In addition, the rigidity of the central pattern block can be reduced by arranging the second circumferential grooves symmetrically along the circumferential direction of the tire body, dividing the central pattern block into a first pattern block, a second pattern block, a third pattern block, and a fourth pattern block, solving the problem of loud resonance of the central pattern block, reducing the noise of the tire, and enhancing the drainage performance of the tire. Furthermore, the rigidity of the circumferential and axial directions of the tire tread can be balanced by arranging the first circumferential grooves and the second circumferential grooves at different angles with the circumferential direction of the tire, improving the steering performance of the tire. Therefore, the tire tread structure of the present application has excellent comprehensive performance and an attractive appearance.

[0010] According to some embodiments of the present application, the first lateral grooves and the second lateral grooves are arranged at an angle of 35-60° with the circumferential direction of the tire body, and the first lateral grooves and the second lateral grooves extend through the central pattern block and downward to the adjacent second lateral grooves and first lateral grooves.

[0011] By arranging the first lateral grooves and the second lateral grooves at an angle of 35-60° with the circumferential direction of the tire body and making the first lateral grooves and the second lateral grooves extend through the central pattern block, the first lateral grooves and the second lateral grooves can be arranged in a continuous X-shaped pattern. By this kind of pattern arrangement, the tire can quickly drain water during use, improving the drainage performance of the tire.

[0012] According to some embodiments of the present application, a plurality of first sipes and second sipes are arranged between the lateral grooves of the central pattern block, and the first sipes and the second sipes have the same inclination direction as the circumferential direction of the tire body.

[0013] According to some embodiments of the present application, a plurality of third sipes and fourth sipes are arranged on the first shoulder block and the second shoulder block, one end of the third sipes being in communication with one end of the fourth sipes.

[0014] The present application can increase the flexibility of the tire, improve the mutual supporting force of the blocks of the tire tread when deformed, reduce the excessive deformation of the tire when in contact with the ground, effectively maintain the handling of the tire, and improve the quiet comfort of the tire.

[0015] According to some embodiments of the present application, the ratio of the width between the two first circumferential grooves to the width of the tire body is 0.46-7, and the ratio of the width of the first shoulder block and the second shoulder block to the width of the tire body is 0.17-3.

[0016] According to some embodiments of the present application, the radial depth of the first sipes and the second sipes is not completely the same, and the radial depth of the third sipes and the fourth sipes is not completely the same.

[0017] According to some embodiments of the present application, the depth of the first sipes, the second sipes, the third sipes and the fourth sipes is 1mm-8mm.

[0018] According to some embodiments of the present application, the first sipes and the second sipes are in a wave shape, and the third sipes and the fourth sipes are in a straight line shape.

[0019] According to some embodiments of the present application, the width of the lateral groove is 4-10mm, and the groove wall angle of the lateral groove is 6-12.

[0020] The second aspect of the present application provides a tire, comprising a tire tread structure provided by the first aspect of the present application and a tire body. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described and explained in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments embodied in the following drawings are exemplary and are only used to explain the present application, and should not be understood as a limitation of the present application.

[0022] Figure 1 A plan view of a tire tread structure provided by an embodiment of the present application;

[0023] Figure 2Fig. 8 is an enlarged view of the third and fourth sipes in the embodiment of the present application.

[0024] 100, tire tread structure; 110, first shoulder block; 120, center block; 130, second shoulder block; 1, first block; 2, second block; 3, third block; 4, fourth block; 5, fifth sipe; 6, first sipe; 7, second sipe; 8, third sipe; 9, fourth sipe; 10, lateral groove; 11, second circumferential groove; 12, first circumferential groove; 13, first decorative component; 14, second decorative component. DETAILED DESCRIPTION

[0025] The technical solutions 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 of the present application. 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 protection of the present application.

[0026] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the embodiments of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or replaceable connection, or integral connection, it can be mechanical connection, or electrical connection, it can be direct connection, or indirect connection through an intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0028] The present application provides a four-season tire with excellent comprehensive performance, which can meet various road conditions and seasonal use, and can well balance the handling performance, wear performance and ride comfort, lubrication performance and ice and snow road grip performance.

[0029] Reference Figures 1-2 , Figure 1A plan view of the tire tread structure 100 in the present application. It should be noted that the "axial direction" of the tire in the present application refers to the direction parallel to the rotation axis of the tire. The "circumferential direction" of the tire in the present application refers to the direction tangent to any circle centered on the rotation axis, which is perpendicular to the axial direction and the radial direction. The "radial direction" of the tire in the present application refers to the direction perpendicular to the rotation axis of the tire (which corresponds to the direction of the thickness of the tire tread at the center of the tire).

[0030] In the present application, the dimension of each part of the tire tread structure 100 extending along the "axial direction" of the tire is referred to as the width, the dimension extending along the "circumferential direction" of the tire is referred to as the length, and the dimension extending along the "radial direction" of the tire is referred to as the depth.

[0031] As shown in Figure 1 The tire tread structure 100 in the present application includes a tire pattern portion that circumferentially surrounds the tire body, which includes a central block 120, a first shoulder block 110 and a second shoulder block 130 disposed on both sides of the central block 120, respectively, wherein the central block 120 and the first shoulder block 110 and the second shoulder block 130 are respectively provided with a first circumferential groove 12 circumferentially disposed on the tire body, wherein the central block 120 is further provided with a plurality of second circumferential grooves 11 symmetrically distributed along the circumferential direction of the tire body, which divides the central block 120 along the circumferential direction of the tire body into a first block 1, a second block 2, a third block 3 and a fourth block 4, which can reduce the rigidity of the central block 120, solve the problem of loud resonance of the central block 120, reduce the noise of the tire and enhance the drainage performance of the tire.

[0032] The first circumferential groove 12 and the second circumferential groove 11 have different angles with the circumferential direction of the tire, and the width of the first groove is 1.5-6mm. By setting the first circumferential groove 12 and the second circumferential groove 11 in different directions, the circumferential and axial rigidity of the tire tread can be balanced, and the steering performance of the tire tread can be improved.

[0033] Exemplarily, the width of the first shoulder block 110 and the second shoulder block 130 can be the same or different, which is not specifically limited here.

[0034] In another embodiment, the tire pattern of the present application further comprises a plurality of lateral grooves 10 arranged along the circumferential direction of the tire body, and the lateral grooves 10 are arranged at unequal distances, the lateral grooves comprise first lateral grooves and second lateral grooves, the first lateral grooves are arranged on the first shoulder pattern blocks 110 along the axial direction of the tire body and extend through the first circumferential grooves into the central pattern blocks 120; the second lateral grooves are arranged on the second shoulder pattern blocks 130 along the axial direction of the tire body and extend through the second circumferential grooves into the central pattern blocks 120, and the first lateral grooves and the second lateral grooves are symmetrically distributed along the circumferential direction of the tire body.

[0035] Exemplarily, the lateral grooves 10 are convex upward circular arc shapes, the lateral grooves 10 can also be provided with inclined side walls to prevent stone trapping, and the lateral grooves 10 can also be other shapes, which are not specifically limited here.

[0036] Exemplarily, the opening width of the lateral grooves 10 gradually decreases from the opening to the groove bottom, such design not only can improve the self-cleaning performance of the tire against stone trapping, but also the width of the opening of the lateral grooves 10 can maximize the rapid drainage, which can provide excellent wet skid resistance performance, turning stability and precise turning responsiveness, and is beneficial to improve the wet road safety performance of the tire.

[0037] Exemplarily, the opening width of the lateral grooves 10 along the radial direction of the tire is 4-10mm, and the groove wall angle of the lateral grooves is 6-12°, by selecting appropriate lateral grooves 10, the tire can have good drainage performance and stone trapping performance.

[0038] In another embodiment, the plurality of lateral grooves 10 of the present application are arranged in the same way on the tire pattern, that is, the plurality of lateral grooves 10 are arranged at intervals and have consistent directions.

[0039] The present application can effectively reduce the stiffness of the tire tread by arranging the first circumferential groove 12, the second circumferential groove 11 and the plurality of lateral grooves 10 along the circumferential direction of the tire body, which is beneficial to increase the contact area between the tire and the ground and improve the ice and snow road grip performance of the tire. In addition, by arranging a plurality of grooves on the tire tread, the tire can provide good traction and braking force in the longitudinal and lateral directions, prevent tire side slip, and improve the handling performance and wear performance of the tire.

[0040] In another embodiment, the tire pattern part adopts an axisymmetric manner, that is, the first circumferential groove 12, the second circumferential groove 11 and the lateral groove 10 are symmetrically distributed with the central pattern block 120 as the center, so as to improve the beauty of the tire while ensuring the performance of the tire. Therefore, compared with the prior art, the tire of the present application not only has excellent use performance, but also has good beauty.

[0041] In another embodiment, a plurality of first sipes 6 and second sipes 7 are arranged between the lateral grooves 10 of the central pattern block 120, and the first sipes 6 and the second sipes 7 have the same inclination direction as the tire body circumferential direction. In addition, a plurality of third sipes 8 and fourth sipes 9 are arranged on the first shoulder pattern block 110 and the second shoulder pattern block 130, and one end of the third sipe 8 is in communication with one end of the fourth sipe 9.

[0042] In another embodiment, a fifth sipe 5 can also be arranged on the central pattern block 120, and the fifth sipe 5 can be arranged as a plurality of straight sipes.

[0043] The present application can ensure that the tire has good traction and braking force in the longitudinal and lateral directions by arranging a plurality of sipes in different directions, thereby preventing the tire from skidding. In addition, the present application can reduce the rigidity of the tire shoulder to some extent, improve the riding comfort of the tire, and also reduce the noise of the tire and enhance the ice and snow road grip performance of the tire by arranging a plurality of third sipes 8 and fourth sipes 9 on the first shoulder pattern block 110 and the second shoulder pattern block 130.

[0044] In another embodiment, the radial depth of the first sipe 6 and the second sipe 7 along the tire body is not completely the same, and the radial depth of the third sipe 8 and the fourth sipe 9 along the tire body is not completely the same; wherein the depth of the first sipe 6, the second sipe 7, the third sipe 8 and the fourth sipe 9 is 1mm-8mm. By arranging the first sipe 5 and the second sipe 6, the rigidity of the tire crown part can be effectively reduced, and the comfort of the tire can be improved. The depth of the first sipe 5 and the second sipe 6 can be selected according to actual needs, and the present application will not be described in detail.

[0045] In another embodiment, the first sipe 6 and the second sipe 7 are in a wavy shape, and the third sipe 8 and the fourth sipe 9 are in a straight line shape.

[0046] The application can effectively reduce the rigidity of the pattern block, improve the riding comfort and the grip on the ice and snow road by setting the first and second sipes 6 and 7 in a wave shape on the central pattern block. In addition, the third and fourth sipes 8 and 9 in a linear shape are set on the shoulder pattern block, which can improve the handling performance of the tire on dry and wet road surfaces.

[0047] In another embodiment, as shown in FIG. 1, a plurality of first decorative parts 13 are arranged on the first shoulder pattern block 110 and the second shoulder pattern block 130. The first decorative parts 13 are in the shape of raindrops, the sun or snowflakes, for example. In addition, second decorative parts 14 can also be arranged. The cooperation of the first decorative parts 13 and the second decorative parts 14 can reflect the category of the season suitable for the tire shoulder, specifically, rainy days, summer or winter, while also increasing the aesthetic appearance of the tire shoulder. Figure 2

[0048] In another embodiment, the width of the first sipe 5 and the second sipe 6 is <2mm. By selecting the appropriate width of the sipe, the softness of the tread pattern rib can be increased, while the mutual supporting force of the tread rubber pattern block when deformed is also increased to enhance the rigidity of the pattern rib, reduce the excessive deformation of the tire when in contact with the ground, and effectively maintain the handling performance of the tire while improving the quiet comfort of the tire.

[0049] In another embodiment, the width of the lateral groove 10 is 4-10mm, and the groove wall angle of the lateral groove 10 is 6-12°. By setting the appropriate lateral groove 10, the tire can have the best drainage performance, ice and snow grip performance and stone prevention performance.

[0050] In another embodiment, as shown in FIG. 1, the ratio of the width between the two first circumferential grooves 12 to the width of the tire body is 0.46-7, and the ratio of the width of the first shoulder pattern block 110 and the second shoulder pattern block 130 to the width of the tire body is 0.17-3. By this setting, the ratio between the area of the middle part of the tread and the area of the tire shoulder can be balanced, which can ensure that the middle part of the tread and the shoulder of the tire have sufficient area to support the entire tire, thereby ensuring the support strength of the entire tread. The specific ratio is designed according to actual needs, which will not be described in detail. Figure 1 Therefore, compared with the prior art, the tire tread and the tire having the same have good handling performance, wear performance, riding comfort, lubrication performance and ice and snow road grip performance, and are a four-season tire tread and tire having the same with excellent comprehensive performance, which can meet the use of various road conditions and seasons.

[0051]

[0052] ​​The above embodiments are the preferred embodiments of the present application, but the embodiments of the present application are not limited to the above embodiments, and any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present application should be equivalent replacement methods, and are included in the protection scope of the present application.

Claims

1.A tire tread structure, comprising a tire pattern portion circumferentially surrounding a tire body, characterized in that: the tire pattern portion comprises a central block located in a middle portion, a first shoulder block located on one side of the central block, and a second shoulder block located on the other side of the central block; wherein the central block and the first shoulder block and the second shoulder block are each provided with a first circumferential groove circumferentially surrounding the tire body; wherein the central block is further provided with a plurality of second circumferential grooves symmetrically distributed along the circumferential direction of the tire body, and the first circumferential groove and the second circumferential groove have different angles with the circumferential direction of the tire; the tire pattern portion further comprises a plurality of lateral grooves arranged along the circumferential direction of the tire body, and the lateral grooves are arranged at different distances; the lateral grooves comprise first lateral grooves and second lateral grooves; the first lateral grooves are arranged on the first shoulder block along the axial direction of the tire body and extend through the first circumferential groove into the central block; the second lateral grooves are arranged on the second shoulder block along the axial direction of the tire body and extend through the second circumferential groove into the central block; the first lateral grooves and the second lateral grooves are symmetrically distributed along the circumferential direction of the tire body; the angles between the first lateral grooves, the second lateral grooves and the circumferential direction of the tire body are 35-60°; the first lateral grooves and the second lateral grooves are through and extend downward in the central block to the adjacent second lateral grooves and first lateral grooves; a plurality of first sipes and second sipes are arranged between the lateral grooves of the central block, and the first sipes and the second sipes have the same inclination direction as the circumferential direction of the tire body; a plurality of third sipes and fourth sipes are arranged on the first shoulder block and the second shoulder block, and one end of the third sipes is connected to one end of the fourth sipes; the ratio of the width between the two first circumferential grooves to the width of the tire body is 0.46-7, and the ratio of the width of the first shoulder block and the second shoulder block to the width of the tire body is 0.17-3; the radial depths of the first sipes and the second sipes along the tire body are not completely the same, and the radial depths of the third sipes and the fourth sipes along the tire body are not completely the same; the depths of the first sipes, the second sipes, the third sipes and the fourth sipes are 1-8 mm; the first sipes and the second sipes are in a wave shape, and the third sipes and the fourth sipes are in a straight line shape; the opening width of the lateral grooves along the radial direction of the tire is 4-10 mm, and the groove wall angle of the lateral grooves is 6-12°; the tire body and the tire tread structure according to any one of claims 1-9 are included. ​ ​ ​ 2. The tire tread structure of claim 1 wherein, ​ 3. The tire tread structure according to either of claims 1 or 2, characterized in that, ​ 4. The tire tread structure of claim 3 wherein, ​ 5. The tire tread structure of claim 1 wherein, ​ 6. The tire tread structure of claim 4 wherein, ​ 7. The tire tread structure of claim 6 wherein, ​ 8. The tire tread structure of claim 4 wherein, ​ 9. The tire tread structure of claim 1 wherein, ​ 10. A tire characterized by ​

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