Tire tread structure and tire with same

Abstract

The utility model provides a tire tread structure and a tire with the same. The tire tread structure comprises a plurality of pattern groups which are arranged on a tire tread at intervals in the circumferential direction of a tire, and each pattern group comprises a tire shoulder pattern part and a tire tread pattern part, the plurality of pattern blocks are located between two adjacent tire shoulder pattern parts, at least one pattern block comprises a pattern block main body and a strip-shaped convex part, the strip-shaped convex part is arranged on at least part of the side surface of the pattern block main body and is connected with the tire tread, and the strip-shaped convex part is arranged around the pattern block main body; wherein a plurality of longitudinal grooves are formed between every two adjacent pattern blocks and between the tire shoulder pattern part and the pattern blocks in a surrounding mode, at least part of the strip-shaped protruding parts are located in the longitudinal grooves, and the longitudinal grooves which coincide with at least part of the central plane S of the tire are central longitudinal grooves. The R / T tire effectively solves the problem that the R / T tire in the prior art is relatively low in wear resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of tires, and in particular to a tire tread structure and a tire having the same. Background Art

[0002] At present, with the further segmentation of the tire market, R / T (Rough / Rugged-terrain) - a tire category between A / T and M / T has emerged. R / T tires combine the wilder appearance aesthetics of M / T tires with the more comfortable driving performance of A / T tires. Compared with A / T tires, R / T tires are usually more aggressive in appearance and can provide drivers with greater off-road traction, while compared with M / T tires, R / T tires have better noise performance and driving smoothness.

[0003] In the prior art, R / T tires improve the overall traction capability of the tire by increasing the porosity (ie, the groove area or number of the contact patch) or by improving the edge effect in the lateral direction perpendicular to the circumferential direction of the tire.

[0004] However, reducing the tread contact ratio or increasing the lateral edge effect of the tire will lead to a decrease in the overall rigidity of the tire pattern structure. The wear condition is already serious, and for off-road tires, there are also low-pressure driving conditions. The wear condition in the crown area is even more serious, seriously affecting the service life of the tire. Utility Model Content

[0005] The main purpose of the utility model is to provide a tire tread structure and a tire having the same, so as to solve the problem of low wear resistance of R / T tires in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a tire tread structure is provided, the tire tread structure includes a plurality of pattern groups arranged on the tire tread at intervals along the circumferential direction of the tire, each pattern group includes: a shoulder pattern portion; a plurality of pattern blocks, located between two adjacent shoulder pattern portions, at least one pattern block includes a pattern block body and a strip convex portion, the strip convex portion is arranged on at least part of the side surface of the pattern block body and is connected to the tire tread, and the strip convex portion is arranged around the pattern block body; wherein, a plurality of longitudinal grooves are formed between two adjacent pattern blocks and between the shoulder pattern portion and the pattern block, at least part of the strip convex portion is located in the longitudinal groove, the longitudinal groove that coincides with at least part of the center plane S of the tire is the central longitudinal groove, and the depth D1 of the central longitudinal groove and the height H1 of the strip convex portion satisfy the following relationship: 0.45D1≤H1≤0.5D1.

[0007] Furthermore, the width of the strip-shaped protrusion gradually decreases in the direction away from the tire tread, so that the strip-shaped protrusion forms an inclined surface away from at least part of the side surface of the pattern block body; wherein the strip-shaped protrusion has a lower surface close to the tire tread and an upper surface away from the tire tread, and the width B1 of the lower surface and the width B2 of the upper surface satisfy: 0.6B2≤B1≤0.8B2.

[0008] Furthermore, the strip-shaped protrusion is arranged on the side surface of the pattern block body away from the center plane S.

[0009] Furthermore, the tire tread structure also includes: an intermediate sheet-like structure, which is arranged in the pattern block, and the intermediate sheet-like structure includes a first sub-sheet-like structure and a second sub-sheet-like structure that are connected to each other, and the first sub-sheet-like structure is arranged away from the tire tread relative to the second sub-sheet-like structure; wherein the first sub-sheet-like structure is straight, and the second sub-sheet-like structure includes at least two straight segments and a structural reinforcement segment arranged between two adjacent straight segments, and the structural reinforcement segment is serrated or wavy.

[0010] Furthermore, the multiple pattern blocks include a crown pattern block, and the crown pattern block includes: a first sub-crown pattern block; a second sub-crown pattern block; a connecting block, the first sub-crown pattern block is connected to the second sub-crown pattern block through the connecting block, and along the circumference of the tire, the second sub-crown pattern block is located on one side of the first sub-crown pattern block; wherein, a plurality of intermediate sheet structures are arranged in the first sub-crown pattern block and the second sub-crown pattern block, the plurality of intermediate sheet structures include a first intermediate sheet structure, a second intermediate sheet structure and a third intermediate sheet structure, the second intermediate sheet structure is located between the first intermediate sheet structure and the third intermediate sheet structure, and the ends of the first intermediate sheet structure and the third intermediate sheet structure away from each other respectively extend into the longitudinal grooves adjacent to the crown pattern block.

[0011] Furthermore, a first transverse groove is formed between two adjacent pattern groups, and the multiple pattern blocks also include: a central pattern block located between two adjacent crown pattern blocks, a plurality of intermediate sheet structures are arranged in the central pattern block, and the multiple intermediate sheet structures include a fourth intermediate sheet structure and a fifth intermediate sheet structure, the fourth intermediate sheet structure extends into the longitudinal groove at one end away from the fifth intermediate sheet structure, and the fifth intermediate sheet structure extends into the first transverse groove at one end away from the fourth intermediate sheet structure.

[0012] Furthermore, a first transverse groove is formed between two adjacent pattern groups, and the shoulder pattern portion includes a first shoulder pattern block and a second shoulder pattern block arranged at intervals along the circumferential direction of the tire, and a second transverse groove is formed between the first shoulder pattern block and the second shoulder pattern block; wherein the tire tread structure also includes a strip-shaped protrusion, the strip-shaped protrusion is arranged on the bottom of the second transverse groove; and / or the strip-shaped protrusion is arranged on the bottom of the first transverse groove.

[0013] Furthermore, the tire tread structure also includes: a shoulder sheet-like structure, which is arranged in the first shoulder pattern block and / or the second shoulder pattern block, the shoulder sheet-like structure includes a third sub-sheet-like structure and a fourth sub-sheet-like structure that are connected to each other, and the third sub-sheet-like structure and the fourth sub-sheet-like structure are set at an angle; and / or, the extension direction of each pattern block is set at a second angle A2 with the width direction of the tire, and the second angle A2 satisfies: 120°≤A2≤170°; and / or, the longitudinal groove includes a first sub-longitudinal groove, a second sub-longitudinal groove and a third sub-longitudinal groove that are connected to each other, the second sub-longitudinal groove is located between the first sub-longitudinal groove and the third sub-longitudinal groove, the first sub-longitudinal groove is set at an angle to the second sub-longitudinal groove, and the third sub-longitudinal groove is set at an angle to the second sub-longitudinal groove.

[0014] Furthermore, the pattern group has a length L, and the multiple pattern groups include a first pattern group, a second pattern group and a third pattern group. The length L1 of the first pattern group, the length L2 of the second pattern group and the length L3 of the third pattern group satisfy: 1.23L3≤L1≤1.43L3, 1.06L3≤L2≤1.26L3.

[0015] In order to achieve the above object, according to one aspect of the utility model, a tire is provided, and the tire comprises the above tire tread structure.

[0016] The technical solution of the utility model is applied, and the tire tread structure includes a plurality of pattern groups arranged on the tire tread at intervals along the circumferential direction of the tire, each pattern group includes a shoulder pattern portion and a plurality of pattern blocks, the plurality of pattern blocks are located between two adjacent shoulder pattern portions, at least one pattern block includes a pattern block body and a strip convex portion, the strip convex portion is arranged on at least part of the side surface of the pattern block body and connected to the tire tread, and the strip convex portion is arranged around the pattern block body. Among them, a plurality of longitudinal grooves are formed around two adjacent pattern blocks and between the shoulder pattern portion and the pattern block, at least part of the strip convex portion is located in the longitudinal groove, and the longitudinal groove that coincides with at least part of the center plane S of the tire is the central longitudinal groove, and the depth D1 of the central longitudinal groove and the height H1 of the strip convex portion satisfy: 0.45D1≤H1≤0.5D1. In this way, the strip-shaped convex portion located in the longitudinal groove and designed with the above-mentioned height can, on the one hand, block the stones entering the longitudinal groove to reduce the probability of "stone clamping" in the longitudinal groove; on the other hand, it can enhance the rigidity of the pattern block and reduce the area of ​​the longitudinal groove clamping the stone, so that the stone can be more easily discharged from the longitudinal groove, thereby avoiding to a large extent the phenomenon that the stone follows the rotation and squeezing of the tire, causing local wear of the pattern block, thereby solving the problem of low wear resistance of the R / T tire in the prior art and extending the service life of the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 A partial front view of an embodiment of a tire tread structure according to the present utility model is shown;

[0019] Figure 2 Shows Figure 1 An enlarged view of a tread block of a tire tread structure;

[0020] Figure 3 Shows Figure 1 A front view of a middle sheet structure of a tire tread structure;

[0021] Figure 4 Shows Figure 3 A cross-sectional view of a middle sheet structure of a tire tread structure;

[0022] Figure 5 Shows Figure 1 An enlarged view of the shoulder pattern portion of the tire tread structure;

[0023] Figure 6 Shows Figure 1 An enlarged view of the sidewall pattern group of the tire tread structure.

[0024] The above drawings include the following reference numerals:

[0025] 1. Pattern group; 10. Shoulder pattern portion; 11. First shoulder pattern block; 12. Second shoulder pattern block; 20. Pattern block; 21. Pattern block body; 22. Strip convex portion; 23. Crown pattern block; 231. First sub-crown pattern block; 232. Second sub-crown pattern block; 233. Connecting block; 24. Center pattern block; 30. Longitudinal groove; 31. First sub-longitudinal groove; 32. Second sub-longitudinal groove; 33. Third sub-longitudinal groove; 34. Second longitudinal groove; 40. Intermediate sheet structure; 41. First sub-sheet structure; 42. Second sub-sheet structure Structure; 421, straight section; 422, structural reinforcement section; 43, first intermediate sheet-like structure; 44, second intermediate sheet-like structure; 45, third intermediate sheet-like structure; 46, fourth intermediate sheet-like structure; 47, fifth intermediate sheet-like structure; 50, first transverse groove; 60, second transverse groove; 70, strip-like protrusion; 80, shoulder sheet-like structure; 81, third sub-sheet-like structure; 82, fourth sub-sheet-like structure; 90, sidewall pattern group; 91, first sidewall pattern block; 92, second sidewall pattern block; 93, first sidewall pattern group; 94, second sidewall pattern group. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directional words such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0029] In order to solve the problem of low wear resistance of R / T tires in the prior art, the present application provides a tire tread structure and a tire having the same.

[0030] like Figures 1 to 6 As shown, the tire tread structure includes a plurality of pattern groups 1 arranged on the tire tread at intervals along the circumferential direction of the tire, each pattern group 1 includes a shoulder pattern portion 10 and a plurality of pattern blocks 20, the plurality of pattern blocks 20 are located between two adjacent shoulder pattern portions 10, at least one pattern block 20 includes a pattern block body 21 and a strip convex portion 22, the strip convex portion 22 is arranged on at least part of the side surface of the pattern block body 21 and connected to the tire tread, and the strip convex portion 22 is arranged around the pattern block body 21. Among them, a plurality of longitudinal grooves 30 are formed around two adjacent pattern blocks 20 and between the shoulder pattern portion 10 and the pattern block, at least part of the strip convex portion 22 is located in the longitudinal groove 30, the longitudinal groove 30 that coincides with at least part of the center plane S of the tire is a central longitudinal groove, and the depth D1 of the central longitudinal groove and the height H1 of the strip convex portion 22 satisfy: 0.45D1≤H1≤0.5D1.

[0031] The technical solution of this embodiment is applied, and the tire tread structure includes a plurality of pattern groups 1 arranged on the tire tread at intervals along the circumferential direction of the tire, each pattern group 1 includes a shoulder pattern portion 10 and a plurality of pattern blocks 20, the plurality of pattern blocks 20 are located between two adjacent shoulder pattern portions 10, at least one pattern block 20 includes a pattern block body 21 and a strip convex portion 22, the strip convex portion 22 is arranged on at least part of the side surface of the pattern block body 21 and connected to the tire tread, and the strip convex portion 22 is arranged around the pattern block body 21. Among them, a plurality of longitudinal grooves 30 are formed around two adjacent pattern blocks 20 and between the shoulder pattern portion 10 and the pattern block 20, at least part of the strip convex portion 22 is located in the longitudinal groove 30, and the longitudinal groove 30 that coincides with at least part of the center plane S of the tire is a central longitudinal groove, and the depth D1 of the central longitudinal groove and the height H1 of the strip convex portion satisfy: 0.45D1≤H1≤0.5D1. In this way, the strip-shaped protrusion 22 located in the longitudinal groove 30 and designed with the above-mentioned height can, on the one hand, block the stones entering the longitudinal groove 30 to reduce the probability of "stone clamping" in the longitudinal groove 30; on the other hand, it can enhance the rigidity of the pattern block 20 and reduce the area of ​​the longitudinal groove 30 clamping the stones, so that the stones can be more easily discharged from the longitudinal groove 30, thereby largely avoiding the phenomenon that the stones follow the rotation and squeezing of the tire, causing local wear of the pattern block 20, thereby solving the problem of low wear resistance of the R / T tire in the prior art and extending the service life of the tire.

[0032] In this embodiment, each pattern block 20 includes a pattern block body 21 and a strip-shaped protrusion 22 .

[0033] In this embodiment, each pattern block 20 is actually an irregular block structure, so that the appearance of the tire tread structure is more visually impactful and aggressive, thereby improving the aesthetics of the tire tread structure.

[0034] In the present embodiment, the tire tread structure also includes a side pattern group 90, each side pattern group 90 includes a first side pattern block 91 and a second side pattern block 92, the first side pattern block 91 is horn-shaped, and the second side pattern block 92 is shield-shaped, which can give the tire a wilder appearance while providing certain protection for the tire shoulder (enhancing the shoulder's anti-puncture ability) and at the same time, improving the tire's traction in deep mud and loose rocks.

[0035] In the present embodiment, the sidewall pattern group 90 includes a first sidewall pattern group 93 and a second sidewall pattern group 94 , and the horns of the first sidewall pattern blocks 91 in the first sidewall pattern group 93 and the second sidewall pattern group 94 are oriented in opposite directions.

[0036] In this embodiment, the first sidewall pattern group 93 and the second sidewall pattern group 94 are alternately arranged in sequence.

[0037] In this embodiment, stud holes are additionally provided on the shoulder pattern portion 10 to support TSMI#15 studs, thereby improving the tear resistance and ice and snow resistance of the tire.

[0038] In this embodiment, the shoulder pattern portion 10 uses a sunken spring air hole sleeve, which makes the whole more neat and beautiful.

[0039] The sidewalls feature an auxiliary ridge design, which gives the tire greater traction on mud, rocks and snow when driving off-road in low-pressure conditions.

[0040] In this embodiment, the width of the strip convex portion 22 gradually decreases in the direction away from the tire tread, so that the strip convex portion 22 forms an inclined surface away from at least part of the side surface of the pattern block body 21. The strip convex portion 22 has a lower surface close to the tire tread and an upper surface away from the tire tread, and the width B1 of the lower surface and the width B2 of the upper surface satisfy: 0.6B2≤B1≤0.8B2.

[0041] In the present embodiment, the strip-shaped protrusion 22 is disposed on the side surface of the pattern block body 21 away from the center plane S.

[0042] Specifically, the strip-shaped protrusion 22 is actually a strip-shaped structure with a right-angled trapezoidal cross section, which is arranged on the side of the pattern block body 21 and connected to the tire tread, and actually forms a stepped structure on the side of the pattern block body 21.

[0043] Specifically, the height H1 of the strip convex portion 22 is actually the step height, and the step height is greater than or equal to 0.45D1, and the lower surface width B2 of the step-shaped structure is less than or equal to 0.8B1, which can effectively prevent stones from entering the longitudinal groove 30 and invading the corners of the pattern block 20, so as to effectively inhibit the stone clamping phenomenon at the corners of the pattern block 20, and the stones clamped at the corners are also very easy to be discharged due to the increased rigidity of the pattern block 20, which improves the overall wear resistance of the tire tread structure. At the same time, the step height is less than or equal to 0.5D1, and the lower surface width B2 of the step-shaped structure is greater than or equal to 0.6B1, which can increase the volume of the central longitudinal groove to improve the traction performance of the tire on snow and off-road roads. Therefore, the step-shaped structure design of the strip convex portion 22 can improve the traction performance of the tire on the one hand; on the other hand, it can reduce the probability of stone clamping of the tire, thereby enabling the tire to take into account both traction performance and wear resistance.

[0044] like Figure 3 and Figure 4The tire tread structure also includes an intermediate sheet structure 40, which is disposed in the pattern block 20. The intermediate sheet structure 40 includes a first sub-sheet structure 41 and a second sub-sheet structure 42 connected to each other, and the first sub-sheet structure 41 is disposed away from the tire tread relative to the second sub-sheet structure 42. The first sub-sheet structure 41 is in a straight line shape, and the second sub-sheet structure 42 includes at least two straight line segments 421 and a structural reinforcement segment 422 disposed between two adjacent straight line segments 421, and the structural reinforcement segment 422 is in a sawtooth shape or a wavy shape. In this way, the rigidity of the straight section 421 of the second sub-sheet structure 42 is relatively small, and the rigidity of the structural reinforcement section 422 with a serrated or wavy design is relatively large, so that the middle sheet structure 40 as a whole presents the structural characteristics of small rigidity at both ends and large rigidity in the middle. During the driving process of the tire, when the middle sheet structure 40 contacts the driving surface, the two ends with small rigidity are prone to deformation. On the one hand, they can cut the complete water film between the driving surface and the tire, thereby improving the tire's anti-humidification performance; on the other hand, after deformation, the two ends can facilitate the discharge of water from between the tire and the driving surface, thereby improving the drainage performance of the tire. At the same time, the structural reinforcement section 422 with relatively large rigidity can interlock with the tire rubber material to play a role in supporting the load. At the same time, after the middle sheet structure 40 is separated from the driving surface, the structure of the middle sheet structure 40 is restored to effectively improve the tire's grip and wear resistance, and play a role in safety protection.

[0045] In this embodiment, the middle sheet structure 40 is actually a 3D steel sheet, which can regularly undergo the above-mentioned deformation and stretching during the running process of the tire, thereby improving the tire's grip and traction on ice and snow while improving the rigidity and wear resistance of the pattern block 20, and providing excellent ice and snow handling and driving performance.

[0046] like Figure 2As shown, the plurality of pattern blocks 20 include a crown pattern block 23, and the crown pattern block 23 includes a first sub-crown pattern block 231, a second sub-crown pattern block 232 and a connecting block 233. The first sub-crown pattern block 231 is connected to the second sub-crown pattern block 232 through the connecting block 233. Along the circumferential direction of the tire, the second sub-crown pattern block 232 is located at one side of the first sub-crown pattern block 231. In particular, a plurality of intermediate sheet structures 40 are disposed in both the first sub-crown pattern block 231 and the second sub-crown pattern block 232. The plurality of intermediate sheet structures 40 include a first intermediate sheet structure 43, a second intermediate sheet structure 44 and a third intermediate sheet structure 45. The second intermediate sheet structure 44 is located between the first intermediate sheet structure 43 and the third intermediate sheet structure 45. The ends of the first intermediate sheet structure 43 and the third intermediate sheet structure 45 away from each other extend into the longitudinal grooves 30 adjacent to the crown pattern block 23. In this way, the multiple intermediate sheet structures 40 (3D steel sheets) located on the first sub-crown block 231 and the second sub-crown block 232 can improve the tire's grip and traction on ice and snow while improving the rigidity and wear resistance of the crown block 23, and can provide excellent handling and driving performance on ice and snow; on the other hand, it allows the water between the tire and the driving surface to flow along the multiple intermediate sheet structures 40 to achieve liquid circulation between two adjacent longitudinal grooves 30, thereby improving the tire's drainage capacity.

[0047] In the present embodiment, there are two crown pattern blocks 23 , one crown pattern block 23 is adjacent to one shoulder pattern portion 10 , and the other crown pattern block 23 is adjacent to the other shoulder pattern portion 10 .

[0048] In this embodiment, the connection block 233 is a tire dam.

[0049] Optionally, a first transverse groove 50 is formed between two adjacent pattern groups 1, and the multiple pattern blocks 20 also include a central pattern block 24 located between two adjacent crown pattern blocks 23. A plurality of intermediate sheet structures 40 are arranged in the central pattern block 24. The multiple intermediate sheet structures 40 include a fourth intermediate sheet structure 46 and a fifth intermediate sheet structure 47. One end of the fourth intermediate sheet structure 46 away from the fifth intermediate sheet structure 47 extends into the longitudinal groove 30, and one end of the fifth intermediate sheet structure 47 away from the fourth intermediate sheet structure 46 extends into the first transverse groove 50. In this way, the multiple intermediate sheet structures 40 (3D steel sheets) located on the central tread block 24 can improve the tire's grip and traction on ice and snow while improving the rigidity and wear resistance of the central tread block 24, and can provide excellent handling and driving performance on ice and snow; on the other hand, it allows the water between the tire and the driving surface to flow along the multiple intermediate sheet structures 40, so as to achieve liquid circulation between the longitudinal grooves 30 and the first transverse grooves 50, thereby improving the drainage capacity of the tire.

[0050] In this embodiment, there are two center pattern blocks 24 , and the two center pattern blocks 24 are located between the two crown pattern blocks 23 .

[0051] In this embodiment, a central longitudinal groove is formed around the sides of the two central pattern blocks 24 .

[0052] Optionally, a first transverse groove 50 is formed around two adjacent pattern groups 1, and the shoulder pattern portion 10 includes a first shoulder pattern block 11 and a second shoulder pattern block 12 arranged at intervals along the circumference of the tire, and a second transverse groove 60 is formed around the first shoulder pattern block 11 and the second shoulder pattern block 12. The tire tread structure also includes a strip-shaped protrusion 70, which is arranged on the groove bottom of the second transverse groove 60; and / or, the strip-shaped protrusion 70 is arranged on the groove bottom of the first transverse groove 50. In this way, the shoulder pattern portion 10 in the pattern group 1 actually adopts a double shoulder design, which can not only improve the aesthetics of the tire, but also disperse the inherent noise frequency during the tire driving process, so that the single noise peak area in the spectrum is dispersed into two lower noise peaks, thereby reducing the driving noise of the tire and improving the user experience. At the same time, the strip-shaped protrusions 70 located in the first transverse groove 50 or the second transverse groove 60 can block stones from entering the transverse groove to reduce the probability of stone clamping, thereby improving the wear resistance of the tire and extending the service life of the tire.

[0053] In this embodiment, the strip-shaped protrusion 70 is disposed in the first transverse groove 50 .

[0054] In this embodiment, four strip-shaped protrusions 70 are disposed in the first transverse groove 50 , two strip-shaped protrusions 70 are located at one end of the first transverse groove 50 , and two strip-shaped protrusions 70 are located at the other end of the first transverse groove 50 .

[0055] It should be noted that the number of the strip-shaped protrusions 70 is not limited thereto, and can be adjusted according to working conditions and usage requirements. Optionally, the number of the strip-shaped protrusions 70 is two, three, five, six, seven, eight, or more.

[0056] In the present embodiment, the tire tread structure also includes a shoulder sheet structure 80, which is arranged in the first shoulder pattern block 11 and / or the second shoulder pattern block 12, and the shoulder sheet structure 80 includes a third sub-sheet structure 81 and a fourth sub-sheet structure 82 that are connected to each other, and the third sub-sheet structure 81 and the fourth sub-sheet structure 82 are set at an angle; and / or, the extension direction of each pattern block 20 is set at a second angle A2 with the width direction of the tire, and the second angle A2 satisfies: 120°≤A2≤170°; and / or, the longitudinal groove 30 includes a first sub-longitudinal groove 31, a second sub-longitudinal groove 32 and a third sub-longitudinal groove 33 that are connected to each other, the second sub-longitudinal groove 32 is located between the first sub-longitudinal groove 31 and the third sub-longitudinal groove 33, the first sub-longitudinal groove 31 and the second sub-longitudinal groove 32 are set at an angle, and the third sub-longitudinal groove 33 and the second sub-longitudinal groove 32 are set at an angle. In this way, the shoulder sheet structure 80 located on the first shoulder pattern block 11 and the second shoulder pattern block 12 can improve the overall rigidity of the shoulder pattern portion 10, so as to improve the wear resistance and traction performance of the shoulder pattern portion 10, and also facilitate the discharge of water. At the same time, the pattern block 20 designed with a large inclination angle can quickly transmit the circumferential force generated during the tire's driving process, thereby ensuring that the tire has excellent traction performance and response performance. At the same time, the longitudinal groove 30 designed in a zigzag shape (actually formed by two adjacent pattern blocks 20) can further suppress the stone clamping phenomenon and also help improve the tire's grip.

[0057] In this embodiment, at least a portion of the middle sheet structure 40 located in the pattern block 20 is consistent with the extension direction of the pattern block 20 (ie, parallel to each other), so as to further enhance the driving force of the tire.

[0058] Optionally, the pattern group 1 has a length L, and the plurality of pattern groups 1 include a first pattern group, a second pattern group, and a third pattern group, and the length L1 of the first pattern group, the length L2 of the second pattern group, and the length L3 of the third pattern group satisfy: 1.23L3≤L1≤1.43L3, 1.06L3≤L2≤1.26L3. In this way, the above configuration makes the arrangement of the tire tread structure more chaotic, so as to reduce the driving noise of the tire.

[0059] In this embodiment, the length of the pattern group 1 is actually the pitch of the tire.

[0060] Specifically, the tire in this embodiment actually adopts a three-pitch design. The three pitches are simulated by finite element simulation. By establishing a reasonable objective function, the evolutionary algorithm is used to finally find the pitch arrangement with low noise performance for different pitch arrangements, and finally the combination of the optimal sorting method of the noise spectrum composed of 24 pattern groups. Among them, the pitch order energy distribution value is 21.78, and the energy amplitude after Fourier transformation is 7.58. This pitch arrangement achieves the purpose of improving the tire noise performance and effectively reduces the resonance effect.

[0061] Specifically, the tire tread structure in this embodiment is actually a centrally symmetrical figure, that is, with the center plane S as the boundary, the tire tread structure on one side of the center plane S can be obtained by rotating 180° to obtain the tire tread structure on the other side of the center plane S.

[0062] The present application also provides a tire (not shown), which includes the tire tread structure described above.

[0063] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0064] The tire tread structure includes a plurality of pattern groups arranged on the tire tread at intervals along the circumference of the tire, each pattern group includes a shoulder pattern portion and a plurality of pattern blocks, the plurality of pattern blocks are located between two adjacent shoulder pattern portions, at least one pattern block includes a pattern block body and a strip convex portion, the strip convex portion is arranged on at least part of the side surface of the pattern block body and connected to the tire tread, and the strip convex portion is arranged around the pattern block body. Among them, a plurality of longitudinal grooves are formed around two adjacent pattern blocks and between the shoulder pattern portion and the pattern block, at least part of the strip convex portion is located in the longitudinal groove, the longitudinal groove that coincides with at least part of the center plane S of the tire is the central longitudinal groove, and the depth D1 of the central longitudinal groove and the height H1 of the strip convex portion satisfy: 0.45D1≤H1≤0.5D1. In this way, the strip-shaped convex portion located in the longitudinal groove and designed with the above-mentioned height can, on the one hand, block the stones entering the longitudinal groove to reduce the probability of "stone clamping" in the longitudinal groove; on the other hand, it can enhance the rigidity of the pattern block and reduce the area of ​​the longitudinal groove clamping the stone, so that the stone can be more easily discharged from the longitudinal groove, thereby avoiding to a large extent the phenomenon that the stone follows the rotation and squeezing of the tire, causing local wear of the pattern block, thereby solving the problem of low wear resistance of the R / T tire in the prior art and extending the service life of the tire.

[0065] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0066] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0067] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0068] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A tire tread structure, characterized in that: The tire tread structure comprises a plurality of pattern groups (1) arranged on the tire tread at intervals along the circumferential direction of the tire, each of the pattern groups (1) comprising: A shoulder pattern portion (10); A plurality of pattern blocks (20) are located between two adjacent shoulder pattern portions (10), at least one of the pattern blocks (20) comprises a pattern block body (21) and a strip-shaped convex portion (22), the strip-shaped convex portion (22) is arranged on at least a portion of the side surface of the pattern block body (21) and is connected to the tire tread, and the strip-shaped convex portion (22) is arranged around the pattern block body (21); A plurality of longitudinal grooves (30) are formed between two adjacent tread blocks (20) and between the shoulder tread portion (10) and the tread block, at least part of the strip-shaped protrusion (22) is located in the longitudinal groove (30), and the longitudinal groove (30) that coincides with at least part of the center plane S of the tire is a central longitudinal groove, and the depth D1 of the central longitudinal groove and the height H1 of the strip-shaped protrusion (22) satisfy the following relationship: 0.45D1≤H1≤0.5D1.

2. The tire tread structure according to claim 1, characterized in that: In a direction away from the tire tread, the width of the strip-shaped protrusion (22) gradually decreases, so that at least part of the side surface of the strip-shaped protrusion (22) away from the pattern block body (21) forms an inclined surface; The strip-shaped protrusion (22) has a lower surface close to the tire tread and an upper surface away from the tire tread, and the width B1 of the lower surface and the width B2 of the upper surface satisfy: 0.6B2≤B1≤0.8B2.

3. The tire tread structure according to claim 1, characterized in that: The strip-shaped protrusion (22) is arranged on a side surface of the pattern block body (21) away from the center plane S.

4. The tire tread structure according to claim 1, characterized in that: The tire tread structure further comprises: an intermediate sheet-like structure (40) disposed in the pattern block (20), the intermediate sheet-like structure (40) comprising a first sub-sheet-like structure (41) and a second sub-sheet-like structure (42) connected to each other, the first sub-sheet-like structure (41) being disposed away from the tire tread relative to the second sub-sheet-like structure (42); The first sub-sheet structure (41) is in a straight line shape, and the second sub-sheet structure (42) comprises at least two straight line segments (421) and a structural reinforcement segment (422) arranged between two adjacent straight line segments (421), and the structural reinforcement segment (422) is in a sawtooth shape or a wavy shape.

5. The tire tread structure according to claim 4, characterized in that: The plurality of pattern blocks (20) include a crown pattern block (23), and the crown pattern block (23) includes: A first sub-tread crown pattern block (231); A second sub-crown pattern block (232); a connecting block (233), wherein the first sub-crown pattern block (231) is connected to the second sub-crown pattern block (232) via the connecting block (233), and along the circumferential direction of the tire, the second sub-crown pattern block (232) is located on one side of the first sub-crown pattern block (231); Wherein, a plurality of intermediate sheet-like structures (40) are arranged in the first sub-tread crown pattern block (231) and the second sub-tread crown pattern block (232), and the plurality of intermediate sheet-like structures (40) include a first intermediate sheet-like structure (43), a second intermediate sheet-like structure (44) and a third intermediate sheet-like structure (45), the second intermediate sheet-like structure (44) is located between the first intermediate sheet-like structure (43) and the third intermediate sheet-like structure (45), and the ends of the first intermediate sheet-like structure (43) and the third intermediate sheet-like structure (45) away from each other respectively extend into the longitudinal groove (30) adjacent to the crown pattern block (23).

6. The tire tread structure according to claim 5, characterized in that: A first transverse groove (50) is formed between two adjacent pattern groups (1), and the plurality of pattern blocks (20) further include: A central pattern block (24) is located between two adjacent crown pattern blocks (23), wherein a plurality of intermediate sheet-like structures (40) are arranged in the central pattern block (24), wherein the plurality of intermediate sheet-like structures (40) include a fourth intermediate sheet-like structure (46) and a fifth intermediate sheet-like structure (47), wherein one end of the fourth intermediate sheet-like structure (46) away from the fifth intermediate sheet-like structure (47) extends into the longitudinal groove (30), and one end of the fifth intermediate sheet-like structure (47) away from the fourth intermediate sheet-like structure (46) extends into the first transverse groove (50).

7. The tire tread structure according to claim 1, characterized in that: A first transverse groove (50) is formed between two adjacent pattern groups (1). The shoulder pattern portion (10) comprises a first shoulder pattern block (11) and a second shoulder pattern block (12) arranged at intervals along the circumferential direction of the tire, and a second transverse groove (60) is formed between the first shoulder pattern block (11) and the second shoulder pattern block (12); Wherein, the tire tread structure further comprises a strip-shaped protrusion (70), wherein the strip-shaped protrusion (70) is arranged on the bottom of the second transverse groove (60); and / or the strip-shaped protrusion (70) is arranged on the bottom of the first transverse groove (50).

8. The tire tread structure according to claim 7, characterized in that: The tire tread structure further comprises: A shoulder sheet-like structure (80) is arranged in the first shoulder pattern block (11) and / or in the second shoulder pattern block (12), the shoulder sheet-like structure (80) comprising a third sub-sheet-like structure (81) and a fourth sub-sheet-like structure (82) connected to each other, the third sub-sheet-like structure (81) and the fourth sub-sheet-like structure (82) being arranged at an angle; and / or, The extension direction of each of the pattern blocks (20) forms a second angle A2 with the width direction of the tire, and the second angle A2 satisfies: 120°≤A2≤170°; and / or, The longitudinal groove (30) comprises a first sub-longitudinal groove (31), a second sub-longitudinal groove (32) and a third sub-longitudinal groove (33) which are interconnected, the second sub-longitudinal groove (32) is located between the first sub-longitudinal groove (31) and the third sub-longitudinal groove (33), the first sub-longitudinal groove (31) and the second sub-longitudinal groove (32) are arranged at an angle, and the third sub-longitudinal groove (33) and the second sub-longitudinal groove (32) are arranged at an angle.

9. The tire tread structure according to claim 1, characterized in that: The pattern group (1) has a length L, and the plurality of pattern groups (1) include a first pattern group, a second pattern group and a third pattern group. The length L1 of the first pattern group, the length L2 of the second pattern group and the length L3 of the third pattern group satisfy the following conditions: 1.23L3≤L1≤1.43L3, 1.06L3≤L2≤1.26L3.

10. A tire, characterized in that: The tire comprises the tire tread structure according to any one of claims 1 to 9.

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