Block pattern tire and automobile

Abstract

The block pattern tire comprises a tread, a plurality of circumferential grooves are formed in the tread in the circumferential direction to divide the tread into a shoulder area located on the outer side and a plurality of middle areas located on the inner side of the shoulder area, and a plurality of transverse grooves are formed in the tread in the width direction; the tire is characterized in that the circumferential groove between the shoulder area and the adjacent middle area is a broken line type groove, a mute block is arranged on the inner side of the vertex angle part of the broken line type groove, the mute block is of a sharp corner structure, the sharp end of the mute block extends into the circumferential groove, and the middle area is arranged in the circumferential groove. The tire provided by the invention has the advantages of low noise and high wear resistance.

Description

Technical Field

[0001] The present invention relates to the technical field of automobiles, and particularly to a block pattern tire and an automobile. Background Art

[0002] The statements herein only provide background art related to the present invention and do not necessarily constitute prior art.

[0003] Tire patterns are divided into longitudinal patterns, transverse patterns, and block patterns; longitudinal patterns are continuous in the longitudinal direction of the tread and discontinuous in the transverse direction. When using longitudinal patterns, the tire has low rolling resistance and good anti-side slip performance, and is suitable for driving on relatively clean and good roads. However, the braking performance of longitudinal patterns is poor; Transverse patterns are continuous in the transverse direction of the tread and discontinuous in the longitudinal direction. Tires with transverse patterns have strong grip and high rolling resistance, and are suitable for off-road vehicles. However, the drainage performance of transverse patterns is poor; Block patterns are interlaced tire patterns, and their performance is between that of longitudinal patterns and transverse patterns, overcoming the defects of tires with pure longitudinal patterns or pure transverse patterns. For example, there is currently an all-road tire with axial grooves provided along the circumferential direction of the tread and transverse grooves provided along the width direction of the tire. The circumferential grooves and transverse grooves divide the tread into several pattern blocks. However, although the above-mentioned tire ensures the grip and drainage performance of the tire, the noise and wear performance of the block pattern are still poor. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a block pattern tire and an automobile, which reduce the noise generated by the block pattern tire and improve its wear resistance.

[0005] To achieve the above purpose, the present invention is realized through the following technical solutions: In a first aspect, an embodiment of the present invention provides a block pattern tire, including a tread. The tread is provided with a plurality of circumferential grooves along the circumferential direction to divide the tread into a shoulder area located on the outside and a plurality of middle areas located inside the shoulder area. The tread is provided with a plurality of transverse grooves along the width direction. The transverse grooves divide the shoulder area and the middle areas into a plurality of pattern blocks distributed along the circumferential direction of the tire. The circumferential groove between the shoulder area and its adjacent middle area is a zigzag groove. Inside the apex part of the zigzag groove, there is a sound-absorbing block. The sound-absorbing block adopts a sharp-angle structure, its tip extends into the circumferential groove, and its wide end extends into the corresponding pattern block.

[0006] Optionally, all the pattern blocks are provided with a plurality of steel blade grooves arranged along the width direction of the wheel surface, and the steel blade grooves adopt zigzag grooves.

[0007] Optionally, the shoulder region is separated into a plurality of alternately arranged first tread blocks and second tread blocks by transverse grooves, wherein the width of the first tread block is greater than that of the second tread block, and the outer edge of the first tread block is an inward concave arc structure.

[0008] Optionally, the transverse grooves include alternately arranged first transverse grooves and second transverse grooves. In the middle region located inside and adjacent to the shoulder region, the corresponding first transverse grooves and second transverse grooves are both V-shaped structures, and the corner angle of the first transverse groove is greater than that of the second transverse groove. The two sides of the first transverse groove communicate with the wide sides of the V-shaped pointed grooves provided on the tread blocks on its two sides.

[0009] Optionally, the angle of the tip of the pointed groove is 35° - 45°, and the depth of the pointed groove is the same as that of the first transverse groove.

[0010] Optionally, the transverse grooves separate the middle region at the very center of the tread into a plurality of alternately arranged third tread blocks and fourth tread blocks, and the third tread blocks and the fourth tread blocks are arranged symmetrically in reverse.

[0011] Optionally, both the third tread block and the fourth tread block are provided with stepped chamfer structures, and the stepped chamfer structures extend to the intersection positions of the transverse grooves and the circumferential grooves.

[0012] Optionally, the tip of the sound-absorbing block is located at the center line position of the corresponding circumferential groove.

[0013] Optionally, the depth of the transverse groove part corresponding to the shoulder region is the same as that of the circumferential groove. The depth of the transverse groove part in the middle region located inside and adjacent to the shoulder region is half of the depth of the circumferential groove, and the depth of the transverse groove part in the middle region at the very center is two-thirds of the depth of the circumferential groove.

[0014] In a second aspect, an embodiment of the present invention provides an automobile provided with the block pattern tire described in the first aspect.

[0015] The beneficial effects of the present invention are as follows: 1. In the block pattern tire of the present invention, the circumferential groove between the shoulder region and the adjacent middle region is a broken line groove. A sound-absorbing block is provided inside the apex part of the broken line groove. The sound-absorbing block adopts a sharp angle structure, its tip extends into the circumferential groove, and its wide end extends to the corresponding tread block. Through the sound-absorbing block with a sharp angle structure, the airflow frequency in the circumferential groove can be staggered, thereby effectively reducing the noise of the tire.

[0016] 2. In the block pattern tire of the present invention, the transverse grooves in the central area adjacent to the shoulder area are of a V-shaped structure, such that the tread blocks in this central area are irregular multi-angle tread blocks. The design of the multi-angle tread blocks helps prevent groove slippage of the tire, reduces the tire wear rate, and improves the wear resistance of the tire.

[0017] 3. In the block pattern tire of the present invention, the tread blocks in the central area at the very center include a third tread block and a fourth tread block. The third and fourth tread blocks are arranged symmetrically in the reverse direction and are provided with a stepped chamfer structure. Through the stepped chamfer structure, a certain stiffness of the tread blocks can be ensured, and the wear resistance and self-cleaning property of the tire can be improved.

[0018] 4. In the block pattern tire of the present invention, multiple steel sheet knife grooves are provided in all tread blocks and are arranged along the width direction of the tread surface. The steel sheet knife grooves adopt a zigzag groove. Since the steel sheet knife grooves adopt a zigzag shape, they have multiple angles, which can balance the stiffness of each tread block, make the ground contact pressure distribution of the tire more uniform and reasonable, ensure uniform wear of the tire, and improve the overall wear performance of the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The schematic drawings of the specification forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0020] Figure 1 is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 2 is a schematic diagram of the sound-absorbing blocks in the first tread area and the fifth tread area of Embodiment 1 of the present invention; Figure 3 is a schematic diagram of the sound-absorbing blocks in the second tread area and the fourth tread area of Embodiment 1 of the present invention; Figure 4 is a schematic diagram of the stepped chamfer structure of Embodiment 1 of the present invention; Among them, 1. First tread area, 2. Second tread area, 3. Third tread area, 4. Fourth tread area, 5. Fifth tread area, 6. W-shaped zigzag groove, 7. Z-shaped zigzag groove, 8. First tread block, 9. Second tread block, 10. First shoulder transverse groove, 11. Second shoulder transverse groove, 12. Concave arc structure, 13. First sound-absorbing block, 14. First transverse groove section, 15. Second transverse groove section, 16. Fifth tread block, 17. Sixth tread block, 18. Second sound-absorbing block, 19. Pointed knife groove, 20. Third transverse groove section, 21. Fourth transverse groove section, 22. Third tread block, 23. Fourth tread block, 24. Stepped chamfer structure, 25. Steel sheet knife groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Embodiment 1 This embodiment provides a block pattern tire, including a tire body. The tire body has a tread surface, on which a plurality of circumferential grooves and a plurality of transverse grooves are provided. The circumferential grooves are arranged along the circumferential direction of the tire, and the transverse grooves are arranged along the width direction of the tire. The circumferential grooves and the transverse grooves are cross-distributed, forming a plurality of tread blocks on the tread surface of the tire body, thus forming a block pattern tire.

[0022] In this embodiment, four circumferential grooves are provided, dividing the tire tread into five tread zones. The five tread zones are successively the first tread zone 1, the second tread zone 2, the third tread zone 3, the fourth tread zone 4, and the fifth tread zone 5. Among them, the first tread zone 1 and the fifth tread zone 5 are shoulder zones, the second tread zone 2 and the fourth tread zone 4 are middle zones located inside and adjacent to the shoulder zones, and the third tread zone 3 is the central middle zone.

[0023] The total width of the five tread zones accounts for 78%-82% of the TAW area, ensuring that the saturation of the tread blocks in the TAW area can reach 72%-75% to guarantee the safe driving performance of the tire.

[0024] Those skilled in the art can determine the percentage of the total width of the five tread zones accounting for the TAW according to actual needs, and no detailed description will be given here.

[0025] Among them, the circumferential groove between the first tread zone 1 and the second tread zone 2 is a zigzag groove. In this embodiment, a W-shaped zigzag groove 6 is adopted, which is composed of a plurality of successively arranged W-shaped groove segments. The circumferential composition between the fourth tread zone 4 and the fifth tread zone 5 also adopts a zigzag composition. In this embodiment, a W-shaped zigzag groove is adopted, which is composed of a plurality of successively arranged W-shaped groove segments.

[0026] In this embodiment, the bending angle of the W-shaped zigzag groove 6 at the bending point is 145°-160°. Those skilled in the art can set it according to actual needs, and no detailed description will be given here.

[0027] The circumferential grooves between the second tread zone 2, the third tread zone 3, and the fourth tread zone 4 are Z-shaped zigzag grooves 7, which are composed of a plurality of successively arranged Z-shaped groove segments. The bending angle of the Z-shaped zigzag groove 7 at the bending point is 115°-130°. Those skilled in the art can set it according to actual needs, and no detailed description will be given here.

[0028] The transverse grooves include a first transverse groove and a second transverse groove that are alternately arranged in sequence. For the first tread zone 1 and the fifth tread zone 5, the shape, size, and extension direction of the first transverse groove and the second transverse groove in the first tread zone 1 are the same, and the shape, size, and extension direction of the first transverse groove and the second transverse groove in the fifth tread zone 5 are the same.

[0029] The first transverse groove and the second transverse groove divide the first tread area 1 and the fifth tread area 5 into a plurality of alternately arranged first tread blocks 8 and second tread blocks 9.

[0030] Define the groove segments of the first transverse groove located in the first tread area 1 and the fifth tread area 5 as the first shoulder transverse groove 10, and the groove segments of the second transverse groove located in the first tread area and the fifth tread area as the second shoulder transverse groove 11. The depths of the first shoulder transverse groove 10 and the second shoulder transverse groove 11 are the same as the depth of the W-shaped broken line groove 6, which can ensure the balance of drainage performance and grip.

[0031] In this embodiment, along the width direction of the tire, the width of the first tread block 8 is greater than the width of the second tread block 9. This setting method is used to enhance the grip under driving and braking conditions and optimize the stability during high-speed driving. Along the circumferential direction of the tire, the sizes of the first tread block 8 and the second tread block 9 are the same. The specific sizes of the first tread block 8 and the second tread block 9 can be set according to actual needs and will not be described in detail here.

[0032] The width ratio of the second tread block 9 to the first tread block 8 is 0.75 - 0.80, which can be set by those skilled in the art according to actual needs and will not be described in detail here.

[0033] Along the width direction of the tire, the outer edge of the first tread block 8 is provided with an inward concave arc structure 12 to improve the drainage performance and grip of the tire. At the same time, it can reduce the impact sound between the tread block in the shoulder area and the ground, and further reduce the noise generated during tire driving. Preferably, the width of the inward concave arc structure 12 is 12 mm - 16 mm, which can be set by those skilled in the art according to actual needs.

[0034] In this embodiment, a first sound deadening block 13 is provided at the position corresponding to the bending position (i.e., the vertex position) of the W-shaped broken line groove 6 on the inner edge of the first tread block 8. The first sound deadening block 13 adopts a sharp angle structure, with its tip located inside the W-shaped broken line groove 6 and its wide end integrally connected to the first tread block 8.

[0035] Preferably, the sharp angle position of the first sound deadening block 13 extends to the center line position of the W-shaped broken line groove 6, that is, the first sound deadening block 13 occupies 1 / 2 of the width of the W-shaped broken line groove 6. In this embodiment, according to the wavelength formula λ = c / f, where c represents the wave speed and f represents the frequency, the first sound deadening block occupying 1 / 2 of the width of the W-shaped broken line groove can reduce the noise in the 800 - 1200 Hz frequency band by 6 - 8 dB.

[0036] Define the groove segments of the first transverse groove located in the second tread area 2 and the fourth tread area 4 as the first transverse groove segment 14, and the groove segments of the second transverse groove located in the second tread area 2 and the fourth tread area 4 as the second transverse groove segment 15.

[0037] The depths of the first transverse groove section 14 and the second transverse groove section 15 are one - half of the circumferential groove depth, achieving a gradual change in stiffness and avoiding sudden stress changes.

[0038] The first transverse groove section 14 and the second transverse groove section 15 separate the second tread area 2 and the fourth tread area 4 into alternating fifth tread blocks 16 and sixth tread blocks 17. The fifth tread block 16 corresponds to the position of the first tread block 8, and the sixth tread block 17 corresponds to the position of the second tread block 9.

[0039] A second sound - deadening block 18 is provided near the edge of the W - shaped zigzag groove 6 in the sixth tread block 17. The position of the second sound - deadening block 18 corresponds to the bending position (i.e., the apex position) of the W - shaped zigzag groove 6. The second sound - deadening block 18 also adopts a pointed structure at this place. Its tip extends into the interior of the W - shaped zigzag groove 6, and its wide end is integrally connected to the sixth tread block 17. The tip of the second sound - deadening block 18 is located at the center line position of the W - shaped zigzag groove 6. Therefore, the sound - deadening blocks in the first tread area 1 and the second tread area 2 are staggered, and the sound - deadening blocks in the fourth tread area 4 and the fifth tread area 5 are staggered.

[0040] Traditional block - pattern tires do not have sound - deadening blocks. In this embodiment, through the sound - deadening blocks arranged at the apex positions of the W - shaped zigzag grooves 6, based on the principle of acoustic frequency modulation and vortex interference control, it is known that the air flow frequencies in the circumferential grooves can be staggered, thereby effectively reducing the noise of the tire.

[0041] Both the first transverse groove section 14 and the second transverse groove section 15 in the second tread area 2 and the fourth tread area 4 adopt a V - shaped structure. The sharp angles of the first transverse groove section 14 and the second transverse groove section 15 in the second tread area 2 face the same direction. The sharp angles of the first transverse groove section 14 and the second transverse groove section 15 in the fourth tread area 4 face the same direction and are opposite to the sharp angles of the first transverse groove section 14 and the second transverse groove section 15 in the second tread area 2. Among them, the angle of the corner of the first transverse groove section 14 is greater than the angle of the corner of the second transverse groove section 15. Preferably, the angle of the corner of the first transverse groove section 14 is 150° - 155°, and the angle of the corner of the second transverse groove section 15 is 140° - 145°. Those skilled in the art can set the angles of the first transverse groove section 14 and the second transverse groove section 15 according to actual needs, and no detailed description is given here.

[0042] V - shaped pointed - knife grooves 19 are provided on both sides of the first transverse groove section 14. By setting the pointed - knife grooves 19, the following can be achieved: 1. Effectively enhance the drainage performance. Specifically, through the V - shaped structure of the pointed - knife grooves, a directional drainage channel is formed, improving the drainage efficiency by 30% - 40%. It can also effectively divide the water film, reducing the risk of hydroplaning, and increasing the critical speed by 10 - 15 km / h.

[0043] 2. Optimized grip. Specifically, through the setting of the knife-edge grooves, the edge effect can be increased, the friction coefficient on wet roads can be increased by 15% - 20%, and the braking distance can be shortened by 5% - 8%.

[0044] 3. Wear control. Specifically, through the setting of the knife-edge grooves, the ground contact stress can be dispersed, and the life of the tread blocks can be extended by 40% - 50%. It can also avoid irregular wear and maintain performance consistency.

[0045] The wide end of the knife-edge groove communicates with the first transverse groove section 14. The knife-edge grooves 19 on both sides of the first transverse groove section 14 are staggeredly arranged.

[0046] It can be understood that one or more knife-edge grooves 19 can be provided on both sides of the first transverse groove section 14, and those skilled in the art can set them according to actual needs, and no detailed description will be given here.

[0047] The sharp angle of the tip of the knife-edge groove 19 is 35° - 45°, and those skilled in the art can set it according to actual needs. The depth of the knife-edge groove 19 is the same as that of the first transverse groove section 14.

[0048] In this embodiment, since the corner angle of the first transverse groove section 14 is greater than that of the second transverse groove section 15 and the knife-edge grooves 19 are provided, the fifth tread block 16 and the sixth tread block 17 are irregular multi-angle tread blocks. The design of the multi-angle tread blocks helps prevent the tire from experiencing groove slippage, reduces the tire wear rate, and improves the tire wear resistance.

[0049] The groove section of the first transverse groove located in the third tread area 3 is the third transverse groove section 20, and the groove section of the second transverse groove located in the third tread area 3 is the fourth transverse groove section 21.

[0050] In this embodiment, both the third transverse groove section 20 and the fourth transverse groove section 21 adopt a Z-shaped structure. The fold angle at the bending position of the third transverse groove section 20 is 155° - 160°, and the fold angle at the bending position of the fourth transverse groove section 21 is 115° - 120°. Those skilled in the art can set them according to actual needs, and no detailed description will be given here.

[0051] The depths of the third transverse groove section 20 and the fourth transverse groove section 21 are two-thirds of the depth of the circumferential groove, which can maintain the central drainage channel while ensuring stiffness.

[0052] In this embodiment, the third transverse groove section 20 and the fourth transverse groove section 21 divide the third tread area 3 into a plurality of alternately distributed third tread blocks 22 and fourth tread blocks 23, and the adjacent third tread blocks 22 and fourth tread blocks 23 are arranged in reverse symmetry.

[0053] In the third tread block 22, a stepped chamfer structure 24 is provided at the corner corresponding to the intersection position of the third transverse groove section 20 and the Z-shaped zigzag groove 7 near the second tread area 2Z.

[0054] In the fourth tread block 23, a stepped chamfer structure 24 is provided at the corner corresponding to the intersection position of the third transverse groove section 20 and the Z-shaped zigzag groove 7 near the fourth tread area 4Z.

[0055] In this embodiment, the stepped chamfer structure 24 is a multi-stage stepped structure. The end with a thicker thickness is integrally connected to the tread block, and the end with a thinner thickness extends to the intersection position of the third transverse groove section 20 and the Z-shaped zigzag groove 7.

[0056] The number of stages of the stepped structure can be set according to actual needs and will not be described in detail here.

[0057] Traditional block-pattern tires do not have a stepped chamfer structure 24. In this embodiment, through the stepped chamfer structure 24, the tread block can be ensured to have a certain stiffness to improve the wear resistance and self-cleaning property of the tire. Specifically, the stepped chamfer has the following effects: 1. Stiffness enhancement, specifically: The stepped structure is like a "reinforcing bar" in a building, which improves the bending resistance of the tread block by 20%-30%.

[0058] The chamfer disperses the ground contact pressure and avoids stress concentration (the peak pressure is reduced by about 40%).

[0059] 2. Wear resistance optimization, specifically: The stepped chamfer structure makes the pressure distribution more uniform and reduces local excessive wear.

[0060] The rubber deformation amount is reduced by 30%-40%, extending the service life.

[0061] 3. Self-cleaning mechanism The stepped surface of the stepped chamfer forms a "shovel effect" and automatically scrapes off sediment during driving.

[0062] Furthermore, a plurality of steel blade grooves 25 are provided on each tread block. Preferably, two steel blade grooves 25 are opened on each tread block. The width of the steel blade grooves 25 is 0.5 mm - 0.8 mm, and the depth is 3 mm - 5 mm. Those skilled in the art can set the width and depth of the steel blade grooves 25 according to actual needs and will not be described in detail here.

[0063] In this embodiment, the steel blade groove 25 adopts a zigzag groove, and its extending direction is substantially the same as that of the transverse grooves on both sides of the tread block where it is located. Those skilled in the art can set it according to actual needs. The steel blade groove 25 has multiple bending angles. The setting of the steel blade groove 25 with multi-angle bending can balance the stiffness of each tread block. Specifically, the steel blade groove has the following effects: 1. Stress dispersion mechanism The different bending angles of the steel blade groove form an elastic gradient, so that the stiffness difference between adjacent tread blocks is controlled within ±10%.

[0064] Microscopic plastic deformation zones are generated at the bending points of the steel blade groove to absorb local stress concentration.

[0065] 2. Dynamic compensation effect The straight section of the steel blade groove provides basic support (the stiffness contribution is about 60%).

[0066] The acute-angle bending (30° - 45°) of the steel blade groove enhances the lateral rigidity.

[0067] The obtuse-angle bending (>50°) of the steel blade groove improves the longitudinal flexibility.

[0068] In summary, the setting of the steel blade groove makes the ground contact pressure distribution of the tire more uniform and reasonable, ensures uniform tire wear, and can improve the overall wear performance of the tire.

[0069] In this embodiment, only the tread of the tire is improved, and the rest of the tire structure can adopt the existing technology, which will not be described in detail here.

[0070] For the tire of this embodiment, a sound-absorbing block is provided in the outermost shoulder area, which can stagger the airflow frequencies in the outermost circumferential grooves, thereby effectively reducing the noise of the tire.

[0071] For the middle area on the outside, the tread blocks are irregular multi-angle tread blocks, which helps to prevent groove slippage of the tire and reduce the tire wear rate, and improve the wear resistance of the tire.

[0072] For the middle area at the very center, by setting the stepped chamfer structure 25, the stiffness of the tread block can be ensured, and the wear resistance and self-cleaning property of the tire can be improved.

[0073] Through the combination of the above improvement technical means, the noise during tire driving is greatly reduced, the wear performance of the tire is improved, and thus the service life of the tire is improved. The block pattern tire of this embodiment is suitable for any vehicle, especially for off-road vehicles.

[0074] Embodiment 2 This embodiment provides a vehicle, which is provided with the block pattern tires described in Embodiment 1. The remaining structures of the vehicle can adopt the existing technologies and will not be described in detail herein.

[0075] The foregoing are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A block pattern tire, comprising a tread surface. The tread surface is provided with a plurality of circumferential grooves along the circumferential direction to divide the tread surface into a shoulder area located on the outer side and a plurality of central areas located inside the shoulder area. The tread surface is provided with a plurality of transverse grooves along the width direction. The transverse grooves divide the shoulder area and the central areas into a plurality of tread blocks distributed along the circumferential direction of the tire, and is characterized in that The circumferential groove between the shoulder area and its adjacent middle area is a zigzag groove. A sound deadening block is provided inside the apex part of the zigzag groove. The sound deadening block adopts a sharp corner structure, with its tip extending into the circumferential groove and its wide end extending to the corresponding tread block.

2. The block pattern tire according to claim 1, characterized in that, All tread blocks are provided with a plurality of steel blade grooves arranged in the tread width direction. The steel blade grooves adopt zigzag grooves.

3. The block pattern tire according to claim 1, characterized in that, The shoulder area is separated by transverse grooves into a plurality of alternately arranged first tread blocks and second tread blocks. Among them, the width of the first tread block is greater than that of the second tread block, and the outer edge of the first tread block is an inward concave arc structure.

4. The block pattern tire according to claim 1, characterized in that, The transverse grooves include alternately arranged first transverse grooves and second transverse grooves. In the middle area adjacent to and inside the shoulder area, the corresponding first transverse grooves and second transverse grooves are both V-shaped structures, and the corner angle of the first transverse groove is greater than that of the second transverse groove. The two sides of the first transverse groove communicate with the wide sides of the V-shaped sharp blade grooves provided on the tread blocks on its two sides.

5. The block pattern tire according to claim 4, characterized in that, The angle of the tip of the sharp blade groove is 35°-45°, and the depth of the sharp blade groove is the same as that of the first transverse groove.

6. The block pattern tire according to claim 1, characterized in that, The transverse grooves separate the middle area at the center of the tread into a plurality of alternately arranged third tread blocks and fourth tread blocks. The third tread blocks and the fourth tread blocks are arranged in reverse symmetry.

7. The block pattern tire according to claim 6, wherein, Both the third tread blocks and the fourth tread blocks are provided with stepped chamfer structures, and the stepped chamfer structures extend to the intersection positions of the transverse grooves and the circumferential grooves.

8. The block pattern tire according to claim 1, wherein The tip of the sound deadening block is located at the center line position of the corresponding circumferential groove.

9. A block pattern tire according to claim 1, characterized in that, The depth of the transverse groove part corresponding to the shoulder area is the same as that of the circumferential groove. The depth of the transverse groove part in the middle area adjacent to and inside the shoulder area is one-half of the depth of the circumferential groove, and the depth of the transverse groove part in the middle area at the very center is two-thirds of the depth of the circumferential groove.

10. A vehicle, characterized in that, There is provided a block pattern tire according to any one of claims 1-9.

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