Rt tire pattern and tire

Abstract

This utility model proposes an RT tire tread pattern and tire, belonging to the tire industry. It includes multiple first lateral grooves and first longitudinal grooves, which divide the tire tread into multiple central tread block groups and multiple shoulder tread block groups located on both sides of the central tread block groups and symmetrical with respect to the center of the central tread block groups. Each central tread block group has a second longitudinal groove. Second and third lateral grooves are staggered on both sides of the second longitudinal groove. The second longitudinal groove, second lateral groove, and third lateral groove divide the corresponding central tread block group into multiple central tread blocks with irregular polygonal transverse cross-sections arranged in an S-shape. Each central tread block has a through-type steel strip with a zigzag structure. This utility model can improve the overall off-road performance, overall handling performance, and driving performance of the tire, ensure the tire's water and mud drainage performance, and improve driving safety and comfort.

Description

Technical Field

[0001] This utility model belongs to the field of tire technology, and in particular relates to an RT tire tread pattern and tire. Background Technology

[0002] Off-road tires are designed for use in off-road driving. Currently, the main types of off-road tires on the market include AT (All Terrain) tires and MT (Mud-Terrain) tires. AT tires are all-terrain tires with a moderate tread pattern, balancing on-road and off-road performance, but their off-road capability is relatively weak. MT tires are mud-type tires; their high sidewall rigidity results in poor comfort, and their large tread blocks and deep grooves cause significant noise during driving. RT (Rough / Rugged-terrain) tires are a type of tire that falls between AT and MT tires. While RT tires combine the performance advantages of both AT and MT tires, balancing off-road and on-road performance inevitably impacts other performance aspects. Therefore, providing an RT tire tread pattern that improves overall handling and traction while ensuring good water and mud drainage, and enhancing driving safety and comfort, is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0003] Details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects and advantages of the present application more readily apparent.

[0004] This utility model proposes an RT tire tread pattern and tire, which solves the technical problem that existing RT tires affect other performances while balancing off-road capability and on-road performance. It has the characteristics of improving the overall off-road performance of RT tires, improving the overall handling and driving performance of tires, ensuring the tire's water and mud removal performance, and improving driving safety and comfort.

[0005] This utility model discloses an RT tire tread pattern, including a plurality of first lateral grooves spaced apart along the circumference of the tire tread and a plurality of first longitudinal grooves extending along the circumference of the tire tread. The two ends of the first lateral grooves extend to the two sides of the tire sidewalls respectively. The first lateral grooves and the first longitudinal grooves divide the tire tread into a plurality of central tread block groups and a plurality of shoulder tread block groups located on both sides of the central tread block groups and symmetrical with respect to the center of the central tread block groups. Each central tread block group is provided with a second longitudinal groove. The two sides of the second longitudinal groove are staggered with a second lateral groove and a third lateral groove. The second longitudinal groove, the second lateral groove and the third lateral groove divide the corresponding central tread block group into a plurality of central tread blocks with irregular polygonal cross-sections arranged in an S-shape. Each central tread block is provided with a through central steel sheet with a zigzag structure.

[0006] In some embodiments, each central pattern block group includes a first central pattern block, a second central pattern block, a third central pattern block, and a fourth central pattern block, wherein the first central pattern block and the third central pattern block are centrally symmetrical, and the second central pattern block and the fourth central pattern block are centrally symmetrical, wherein a first cutting groove is provided at one end of the first central pattern block near the second longitudinal groove, and the first cutting groove is connected to the second longitudinal groove.

[0007] In some embodiments, the second lateral groove and the third lateral groove are arranged centrally symmetrically. The second lateral groove has a broken line structure and includes a first lateral groove and two lateral grooves connected in sequence. The end of the first lateral groove near the center line of the tread is connected to the second longitudinal groove. The width of the first lateral groove gradually decreases from the sidewall to the center line of the tread. The end of the second lateral groove near the sidewall is connected to the first longitudinal groove.

[0008] In some embodiments, the first longitudinal groove is a polygonal structure with an obtuse angle at the bend, the width of the first longitudinal groove is greater than the width of the second longitudinal groove, and the depth of the first longitudinal groove is equal to the depth of the second longitudinal groove.

[0009] In some embodiments, the first longitudinal trench divides the first transverse trench into a central transverse trench segment and side transverse trench segments located on both sides of the central transverse trench segment, wherein the depth of the central transverse trench segment is equal to the depth of the side transverse trench segments, the depth of the central transverse trench segment is greater than the depth of the first longitudinal trench, and the depth of the central transverse trench segment is greater than the depth of the second longitudinal trench.

[0010] In some embodiments, each shoulder tread block group includes a fourth lateral groove, which has a Y-shaped structure with its opening facing the center line of the tread and its opening end is connected to the first longitudinal groove. The width of the fourth lateral groove is smaller than the width of the side lateral groove segment, and the depth of the fourth lateral groove is equal to the depth of the side lateral groove segment.

[0011] In some embodiments, each shoulder tread block group further includes multiple shoulder tread blocks divided by a fourth transverse groove. Each shoulder tread block is provided with a shoulder steel plate with a zigzag structure. One end of each shoulder steel plate is connected to the adjacent first longitudinal groove, and the other end of each shoulder steel plate is a closed structure.

[0012] In some embodiments, each shoulder tread block group further includes a first shoulder tread block and a second shoulder tread block divided by a fourth lateral groove, wherein the area of ​​the first shoulder tread block is larger than the area of ​​the second shoulder tread block, the axial width of the first shoulder tread block is larger than the circumferential width of the first shoulder tread block, the axial width of the second shoulder tread block is larger than the circumferential width of the second shoulder tread block, the axial width of the first shoulder tread block is smaller than the axial width of the second shoulder tread block, and the circumferential width of the first shoulder tread block is smaller than the circumferential width of the second shoulder tread block.

[0013] In some embodiments, the circumferential tread blocks arranged along the tire tread are unequal pitch tread blocks, and the unequal pitch tread blocks have at least three unequal pitches.

[0014] Another aspect of this utility model discloses a tire, including a tread, on which the above-mentioned RT tire pattern is provided.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] (1) This utility model, through the design of a wide and deep through-type first transverse groove and a first longitudinal groove, forms an "anchoring effect" when embedded in mud and rocks, reducing tire slippage and enabling the tire to drive stably on cement roads. It can achieve high passability on various harsh road surfaces and ensure driving safety. The central tread block is an irregular polygonal large tread block. Through the protruding design on the tire surface, it is beneficial to improve the tire's grip and also improve the rigidity of the central tread block, making the tread pattern appear stronger and more powerful, thus improving the overall off-road performance of the tire. Each central tread block is provided with a central steel sheet with a zigzag structure, which can divide the rigidity of the tread block, improve handling performance, and reduce wear.

[0017] (2) Both the first and third middle tread blocks of this utility model are provided with a knife groove structure, which can cut the water film of the middle tread blocks, assist in drainage, improve wet handling and drainage performance, and enhance the overall handling performance of the tire.

[0018] (3) This utility model improves the grip of the tire by setting open interconnected grooves on the shoulder, increases the speed of getting off in muddy and gravel road conditions, avoids slipping, and ensures the vehicle's ability to climb and get out of trouble.

[0019] (4) The grounding areas of the shoulder pattern blocks arranged at intervals in this utility model are different, so that the frequency of contact between the two when they contact the road surface is inconsistent, which is beneficial to reduce tire noise of the shoulder.

[0020] (5) The irregular arrangement of unequal pitches in this utility model achieves the purpose of reducing tire noise, effectively reducing resonance effect, alleviating road bumps, and improving driving comfort. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with their descriptions, serve to explain the present invention and do not constitute an undue limitation thereof. Wherein:

[0022] Figure 1 This is a schematic diagram of the structure of the RT tire tread pattern provided in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the tread block group in the middle of the RT tire pattern provided in an embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the RT tire tread shoulder tread block assembly provided in an embodiment of the present invention;

[0025] In the attached diagram: 11. First transverse groove; 111. Middle transverse groove section; 112. Edge transverse groove section; 12. Second transverse groove; 121. First transverse groove section; 122. Second transverse groove section; 13. Third transverse groove; 14. Fourth transverse groove; 15. First longitudinal groove; 16. Second longitudinal groove; 21. First central tread block; 22. Second central tread block; 23. Third central tread block; 24. Fourth central tread block; 25. First shoulder tread block; 26. Second shoulder tread block; 31. First central steel sheet; 32. Second central steel sheet; 33. Third central steel sheet; 34. Fourth central steel sheet; 35. First shoulder steel sheet; 36. Second shoulder steel sheet; 41. First cutting groove; 42. Second cutting groove; 51. First chamfer; 52. Second chamfer. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be understood that the terms "center," "lateral," "longitudinal," "upper," "lower," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," and "third" may explicitly or implicitly include one or more of that feature. The term "longitudinal" refers to the direction in which the tire rolls; the term "lateral" refers to the direction perpendicular to the mid-surface of the tire.

[0028] This utility model embodiment provides an RT tire tread pattern and a tire. Figure 1 This is a schematic diagram of the RT tire tread pattern according to an embodiment of the present invention. (Reference) Figure 1As shown, the RT tire tread pattern includes at least: a plurality of first lateral grooves 11 spaced apart along the circumference of the tire tread and a plurality of first longitudinal grooves 15 extending along the circumference of the tire tread. Each first lateral groove 11 extends to both sides of the tire sidewalls. The first lateral grooves 11 and the first longitudinal grooves 15 divide the tire tread into a plurality of central tread block groups located in the middle of the tread and a plurality of shoulder tread block groups located on both sides of the central tread block groups and symmetrical with respect to the center of the central tread block groups. Each central tread block group is provided with a second longitudinal groove 16, the width of which is preferably... The diameter is 8mm-12mm, and the depth is preferably 12mm-16mm. The two ends of the second longitudinal groove 16 are connected to the adjacent first transverse groove 11. The second transverse groove 12 and the third transverse groove 13 are staggered on both sides of the second longitudinal groove 16. The second longitudinal groove 16, the second transverse groove 12 and the third transverse groove 13 divide the corresponding central pattern block group into multiple central pattern blocks with irregular polygonal transverse cross sections arranged in an S-shape. Each central pattern block is inclined relative to the center line of the tread. Each central pattern block is provided with a through central steel plate with a zigzag structure. This invention utilizes a wide and deep through-type first lateral groove 11 and first longitudinal groove 15 to create an "anchoring effect" when embedded in mud and rocks, reducing tire slippage and enabling stable tire driving on concrete roads. This achieves high passability on various harsh road surfaces, ensuring driving safety. The protruding design of large, irregular polygonal tread blocks on the tread surface enhances tire grip and increases the rigidity of the central tread blocks, making the tread pattern appear more robust and powerful, thus improving the overall off-road performance of the tire. The design of large shoulder tread blocks matched with slightly smaller central tread blocks ensures tire off-road performance while improving comfort on paved roads, achieving a perfect combination of off-road and on-road driving performance. The irregular central tread blocks are inclined relative to the tread centerline, which facilitates the rapid transmission of circumferential driving force and also helps to remove mud and sand from the longitudinal grooves. The zigzag-shaped central steel sheet on each central tread block can divide the tread block rigidity, improving handling performance while reducing wear.

[0029] Each central tread block group of the RT tire pattern of this utility model includes a first central tread block 21, a second central tread block 22, a third central tread block 23, and a fourth central tread block 24. The first central tread block 21 and the third central tread block 23 are centrally symmetrical, and the second central tread block 22 and the fourth central tread block 24 are also centrally symmetrical. A first central steel sheet 31 is provided on the first central tread block 21. The first central steel sheet 31 has a four-segment zigzag structure. One end of the first central steel sheet 31 is connected to the first transverse groove 11, and the other end is connected to the third transverse groove 13. A second central steel sheet 32 ​​is provided on the second central tread block 22. The second central steel sheet 32 ​​has a three-segment zigzag structure. One end of the second central steel sheet 32 ​​is connected to the first transverse groove 11, and the other end is connected to the first longitudinal groove 15. A third central steel sheet 33 is provided on the third central patterned block 23. The third central steel sheet 33 has a four-segment zigzag structure. One end of the third central steel sheet 33 is connected to the second transverse groove 12, and the other end of the third central steel sheet 33 is connected to the first transverse groove 11. A fourth central steel sheet 34 is provided on the fourth central patterned block 24. The fourth central steel sheet 34 has a three-segment zigzag structure. One end of the fourth central steel sheet 34 is connected to the first longitudinal groove 15, and the other end of the fourth central steel sheet 34 is connected to the first transverse groove 11. In some embodiments, a first cutting groove 41 is provided on the end of the first central patterned block 21 near the second longitudinal groove 16, and the first cutting groove 41 is connected to the second longitudinal groove 16; a first chamfer 51 is provided on the end of the first central patterned block 21 near the first transverse groove 11 and the second longitudinal groove 16. In some embodiments, a second sipe 42 is provided at one end of the third central tread block 23 near the second longitudinal groove 16, and the second sipe is connected to the third longitudinal groove; a second chamfer 52 is provided at one end of the third central tread block 23 near the first transverse groove 11 and the second longitudinal groove 16. This invention, by providing sipe structures in the first central tread block 21 and the third central tread block 23, can cut the water film in the central tread block, assisting in drainage, improving wet handling and drainage performance, and enhancing the overall handling performance of the tire.

[0030] In some embodiments, the second lateral groove 12 has a two-segment zigzag structure, comprising a first lateral groove 121 and two lateral grooves 122 connected to each other. The first lateral groove 121, near the centerline of the tire tread, is connected to the second longitudinal groove 16. The width of the first lateral groove 121 gradually decreases from the tire sidewall towards the centerline of the tire tread, and the included angle between the two lateral grooves 121 in the tire circumferential direction is 70°-74°. The second lateral groove 122, near the tire sidewall, is connected to the first longitudinal groove 15. The second lateral groove 12 and the third lateral groove 13 are centrally symmetrically arranged. Preferably, the width of both the second lateral groove 12 and the third lateral groove 13 is 8mm-12mm, and the depth is 12mm-16mm.

[0031] The first longitudinal groove 15 of the RT tire tread of this utility model has a zigzag structure, and the angle between the first longitudinal groove 15 and the center line of the tread is 23°-27°. The width of the first longitudinal groove 15 is greater than the width of the second longitudinal groove 16, and the depth of the first longitudinal groove 15 is equal to the depth of the second longitudinal groove 16. The width of the first longitudinal groove 15 is preferably 8mm-12mm, and the depth is preferably 12mm-16mm. This utility model, through its wide and deep through-type main groove design, forms an "anchoring effect" when embedded in mud and rocks, reducing tire slippage and enabling stable tire driving on concrete roads. It achieves high passability on various harsh road surfaces, ensuring driving safety. The equal depth of the first longitudinal groove 15 and the second longitudinal groove 16 ensures balanced tread rigidity. The greater width of the first longitudinal groove 15 compared to the second longitudinal groove 16 significantly improves the drainage and mud removal efficiency at the tire shoulder, enhancing self-cleaning properties in muddy conditions.

[0032] The first longitudinal groove 15 divides the first transverse groove 11 into a central transverse groove section 111 and side transverse groove sections 112 located on both sides of the central transverse groove section 111. The width of the central transverse groove section 111 is greater than the widths of the second transverse groove 12 and the third transverse groove 13. The depth of the central transverse groove section 111 is equal to the depths of the second transverse groove 12 and the third transverse groove 13, and greater than the depth of the first longitudinal groove 15 and the second longitudinal groove 16. The depth of the side transverse groove sections 112 is equal to the depth of the central transverse groove section 111. The depth of the first transverse groove 11 is greater than the depth of the longitudinal groove. This deep transverse groove powerfully displaces mud and creates an anchoring effect when embedded in muddy rocks, significantly improving the self-cleaning properties and traction of muddy terrain, achieving high passability on rough roads, and ensuring driving safety.

[0033] In some embodiments, the angle between the central transverse groove segment 111 and the center line of the tread is 662°-66°, the width of the central transverse groove segment 111 is preferably 8mm-12mm, the depth of the central transverse groove segment 111 is preferably 12mm-16mm, the central transverse groove segment 111 includes a first central transverse groove segment located in the middle and a second central transverse groove segment located on both sides of the first central transverse groove segment, the width of the second central transverse groove segment gradually increases from the end near the first central transverse groove segment towards the tire side; the side transverse groove segment 112 is located between the first shoulder tread block 25 and the second shoulder tread block 26 of two adjacent pitches, and has a Y-shaped structure with the opening facing the center line of the tread, and the opening end is connected to the first longitudinal groove 15, and the end of the side transverse groove segment 112 away from the center line of the tread extends towards the tire side.

[0034] Each shoulder tread block group of the RT tire pattern of this utility model includes a fourth lateral groove 14. The fourth lateral groove 14 has a Y-shaped structure with its opening facing the center line of the tread, and its opening end is connected to the first longitudinal groove 15. The end of the fourth lateral groove 14 away from the center line of the tread extends towards the tire sidewall. The width of the fourth lateral groove 14 is smaller than the width of the side lateral groove section 112, and the depth of the fourth lateral groove 14 is equal to the depth of the side lateral groove section 112. By setting lateral grooves of different widths at the tire shoulder, the efficiency of lateral mud ejection can be improved, and the rigidity and stability of the tire shoulder can be enhanced for steering. The fact that the depth of the fourth lateral groove 14 is the same as that of the side lateral groove section 112 can improve the tire's self-cleaning ability and achieve a balance between steering grip and mud removal. The fourth lateral groove 14 divides each shoulder tread block group into a first shoulder tread block 25 and a second shoulder tread block 26 from top to bottom. The open interconnected grooves on the shoulder improve tire grip, increase the speed of shedding in muddy and gravel conditions, prevent slippage, and ensure the vehicle's ability to climb and get out of trouble. Specifically, the area of ​​the first shoulder tread block 25 is larger than that of the second shoulder tread block 26, the axial width of the first shoulder tread block 25 is larger than its circumferential width, the axial width of the second shoulder tread block 26 is larger than its circumferential width, the axial width of the first shoulder tread block 25 is smaller than that of the second shoulder tread block 26, and the circumferential width of the first shoulder tread block 25 is smaller than that of the second shoulder tread block 26. The shoulder tread blocks of this utility model are all designed with widened tread patterns to increase the rigidity of the tread blocks when the tire is turning, improve the driving performance and handling performance on unpaved roads, and avoid problems such as excessive deformation of the tread pattern causing tread torsion, tearing and excessive wear. The shoulder tread blocks arranged at intervals have different ground contact areas, so that the frequency of contact between the two with the road surface is inconsistent, which helps to reduce tire noise in the shoulder.

[0035] In some embodiments, a first shoulder steel plate 35 is provided on the first shoulder tread block 25. The first shoulder steel plate 35 has a two-segment zigzag structure, and the included angle of the zigzag structure of the first shoulder steel plate 35 is 155°-160°. One end of the first shoulder steel plate 35 is connected to the first longitudinal groove 15, and the other end is a closed structure. A second shoulder steel plate 36 is provided on the second shoulder tread block 26. The second shoulder steel plate 36 has a three-segment zigzag structure, and the included angle of the zigzag structure of the second shoulder steel plate 36 is 155°-160°. One end of the second shoulder steel plate 36 is connected to the first longitudinal groove 15, and the other end is a closed structure. The orientation of the second shoulder steel plate 36 is roughly the same as that of the first shoulder steel plate 35. By providing shoulder steel plates on each shoulder tread block, the rigidity of the tread block can be divided, improving handling performance while reducing wear performance.

[0036] The circumferential tread blocks of this RT tire feature unequal pitch tread blocks, with at least three different pitches. This invention achieves reduced tire noise, effectively reduced resonance, lessened road bumps, and improved ride comfort through the irregular arrangement of unequal pitches.

[0037] The above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. An RT tire tread pattern, characterized in that: The tire includes multiple first lateral grooves spaced apart along the circumference of the tire tread and multiple first longitudinal grooves extending along the circumference of the tire tread. The two ends of the first lateral grooves extend to the two sides of the tire sidewalls. The first lateral grooves and the first longitudinal grooves divide the tire tread into multiple central tread block groups and multiple shoulder tread block groups located on both sides of the central tread block groups and symmetrical with respect to the center of the central tread block groups. Each central tread block group is provided with a second longitudinal groove. The two sides of the second longitudinal groove are staggered with second and third lateral grooves. The second longitudinal groove, the second lateral groove, and the third lateral groove divide the corresponding central tread block group into multiple central tread blocks with irregular polygonal cross-sections arranged in an S-shape. Each central tread block is provided with a through central steel sheet with a zigzag structure.

2. The RT tire tread pattern according to claim 1, characterized in that: Each central pattern block group includes a first central pattern block, a second central pattern block, a third central pattern block, and a fourth central pattern block. The first central pattern block and the third central pattern block are centrally symmetrical, and the second central pattern block and the fourth central pattern block are centrally symmetrical. The first central pattern block has a first cutting groove at one end near the second longitudinal groove, and the first cutting groove is connected to the second longitudinal groove.

3. The RT tire tread pattern according to claim 1, characterized in that: The second and third lateral grooves are arranged symmetrically at the center. The second lateral groove has a broken line structure and includes a first lateral groove and two lateral grooves connected in sequence. The end of the first lateral groove near the center line of the tire tread is connected to the second longitudinal groove. The width of the first lateral groove gradually decreases from the tire sidewall to the center line of the tire tread. The end of the second lateral groove near the tire sidewall is connected to the first longitudinal groove.

4. The RT tire tread pattern according to claim 1, characterized in that: The first longitudinal groove has a broken line structure with an obtuse angle at the bend. The width of the first longitudinal groove is greater than the width of the second longitudinal groove, and the depth of the first longitudinal groove is equal to the depth of the second longitudinal groove.

5. The RT tire tread pattern according to claim 1, characterized in that: The first longitudinal trench divides the first transverse trench into a central transverse trench segment and side transverse trench segments located on both sides of the central transverse trench segment. The depth of the central transverse trench segment is equal to the depth of the side transverse trench segments. The depth of the central transverse trench segment is greater than the depth of the first longitudinal trench, and the depth of the central transverse trench segment is greater than the depth of the second longitudinal trench.

6. The RT tire tread pattern according to claim 5, characterized in that: Each shoulder tread block group includes a fourth lateral groove. The fourth lateral groove has a Y-shaped structure with its opening facing the center line of the tread, and its opening end is connected to the first longitudinal groove. The width of the fourth lateral groove is less than the width of the side lateral groove section, and the depth of the fourth lateral groove is equal to the depth of the side lateral groove section.

7. The RT tire tread pattern according to claim 6, characterized in that: Each shoulder tread block group also includes multiple shoulder tread blocks divided by the fourth transverse groove. Each shoulder tread block is provided with a shoulder steel plate with a zigzag structure. One end of each shoulder steel plate is connected to the adjacent first longitudinal groove, and the other end of each shoulder steel plate is a closed structure.

8. The RT tire tread pattern according to claim 6, characterized in that: Each shoulder tread block group also includes a first shoulder tread block and a second shoulder tread block divided by a fourth lateral groove. The area of ​​the first shoulder tread block is larger than that of the second shoulder tread block. The axial width of the first shoulder tread block is larger than its circumferential width. The axial width of the second shoulder tread block is larger than its circumferential width. The axial width of the first shoulder tread block is smaller than its axial width. The circumferential width of the first shoulder tread block is smaller than its circumferential width.

9. The RT tire tread pattern according to claim 1, characterized in that: The circumferential tread blocks along the tire tread are unequal pitch tread blocks, and there are at least three unequal pitches in the unequal pitch tread blocks.

10. A tire, characterized in that: Includes a tread, on which the RT tire pattern as described in any one of claims 1-9 is provided.

Images