Tire

Abstract

The utility model provides a tire which comprises a tire body and a plurality of pattern block groups, and the plurality of pattern block groups are sequentially arranged on the tire body along the circumferential direction of the tire body; each pattern block group comprises two groups of unit pattern blocks, and the two groups of unit pattern blocks are sequentially arranged in the axial direction of the tire body and are arranged in a central symmetry manner; wherein each group of unit pattern blocks comprises a tire crown block group which is arranged on the tire crown surface, and the width of the tire crown block group is W1; the tire shoulder block group is arranged on the tire shoulder surface, and the width of the tire shoulder block group is W2; the ratio of W1 to W2 is A, and A is greater than or equal to 1 and less than or equal to 2. The tire solves the problems that the tire in the prior art improves the rolling resistance power of the tire by adding irregular transverse grooves, so that foreign matters such as stones are easily clamped in the circumferential grooves of the tire, and the safety performance of a vehicle is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of tire structures, in particular to a tire. Background Art

[0002] At present, cars have become an indispensable means of transportation. With the improvement of quality of life, consumers have higher and higher requirements for the safety, comfort, environmental protection and wear resistance of tires. Taking all-steel radial tires as an example, the main driving conditions are provincial roads, national roads and long-distance highways. When the vehicle turns around, the wear of the tire on the road surface is aggravated, which is easy to cause the shoulder area to fall off.

[0003] In the prior art, in order to reduce the rolling resistance of the tire, the tire is required to have a higher pattern saturation and increase irregular transverse grooves to improve the rolling resistance of the tire. However, this will cause the circumferential grooves of the tire to be more easily clamped by stones, increase safety hazards during vehicle driving, and affect the safety performance of the vehicle. Utility Model Content

[0004] The main purpose of the utility model is to provide a tire to solve the problem that the tire in the prior art improves the rolling resistance of the tire by adding irregular transverse grooves, which makes it easy for foreign objects such as stones to be clamped in the circumferential grooves of the tire, thereby affecting the safety performance of the vehicle.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a tire is provided, comprising a carcass and a plurality of pattern block groups, wherein the plurality of pattern block groups are sequentially arranged on the carcass along the circumferential direction of the carcass; each pattern block group comprises: two groups of unit pattern blocks, wherein the two groups of unit pattern blocks are sequentially arranged along the axial direction of the carcass, and the two groups of unit pattern blocks are centrally symmetrically arranged; wherein each group of unit pattern blocks comprises: a crown block group, which is arranged on the crown surface, and the width of the crown block group is W1; a shoulder block group, which is arranged on the shoulder surface, and the width of the shoulder block group is W2; the ratio of W1 to W2 is A, and the range of A is 1≤A≤2.

[0006] Furthermore, each tread block group also includes: a first groove, which is arranged between two groups of unit tread blocks, and the first groove extends in the circumferential direction of the carcass in a zigzag trajectory, with the axial direction of the carcass as the width direction, and the width of the first groove is H1; a second groove, which is arranged between the crown block group and the shoulder block group, and the second groove extends in the circumferential direction of the carcass in a zigzag trajectory, and the width of the second groove is H2; wherein, the ratio of H1 to H2 is B, and the range of B is 1≤B≤2.

[0007] Further, the first groove and / or the second groove includes: a first groove wall surface and a second groove wall surface arranged opposite to each other, and the horizontal distance between the first groove wall surface and the second groove wall surface gradually increases along the first groove bottom surface of the first groove and / or the second groove to the corresponding groove opening direction; wherein, the angle between the first groove wall surface and the second groove wall surface is C, and the range of C is 22°≤C≤24°.

[0008] Further, multiple groups of first protrusion assemblies and multiple groups of second protrusion assemblies are arranged in the first groove, and each group of first protrusion assemblies and each group of second protrusion assemblies are alternately and spaced along the extension direction of the first groove; and / or, multiple groups of first protrusion assemblies and multiple groups of second protrusion assemblies are arranged in the second groove, and each group of first protrusion assemblies and each group of second protrusion assemblies are alternately and spaced along the extension direction of the second groove; wherein a first intermediate protrusion block is arranged between adjacent first protrusion assemblies and second protrusion assemblies.

[0009] Further, the first protrusion assembly includes a plurality of first protrusions, which are arranged at intervals along the extension direction of the first groove and / or the second groove, and a second intermediate protrusion block is arranged between two adjacent first protrusions; the second protrusion assembly includes a plurality of second protrusions, which are arranged at intervals along the extension direction of the first groove and / or the second groove, and a third intermediate protrusion block is arranged between two adjacent second protrusions; wherein the length of the first protrusion is greater than the length of the second protrusion.

[0010] Furthermore, the plurality of first ridges include a first end ridge, the plurality of second ridges include a second end ridge, and the first intermediate ridge block is disposed between the first end ridge and the second end ridge; the minimum distance between the first intermediate ridge block and the first end ridge is S1, and the range of S1 is 1mm≤S1≤2mm; the minimum distance between the first intermediate ridge block and the second end ridge is S2, and the range of S2 is 1mm≤S2≤2mm.

[0011] Furthermore, the length of the first convex strip is L1, and the range of L1 is 10mm≤L1≤12mm; the length of the second convex strip is L2, and the range of L2 is 6mm≤L2≤8mm.

[0012] Furthermore, the first middle raised block includes: a first body, which is arranged on the bottom surface of the first groove and is a cylindrical structure; a second body, which is arranged at one end of the first body away from the bottom surface of the first groove and is a hemispherical structure; wherein the diameter D of the cylindrical structure is in the range of 1mm≤D≤3mm.

[0013] Furthermore, the crown block group includes: a third groove, arranged on the crown surface, the third groove includes a third groove wall surface and a fourth groove wall surface arranged opposite to each other, the third groove wall surface and the fourth groove wall surface are arc-shaped surfaces respectively, and the center of the arc where the third groove wall surface is located and the center of the arc where the fourth groove wall surface is located are located on the same side; wherein, in the direction from the crown surface to the shoulder surface, the horizontal distance between the third groove wall surface and the fourth groove wall surface gradually decreases.

[0014] Furthermore, the radius of the circle where the third groove wall is located is R1, and the range of R1 is 70mm≤R1≤100mm; the radius of the circle where the fourth groove wall is located is R2, and the range of R2 is 70mm≤R2≤100mm; the horizontal distance between the third groove wall and the fourth groove wall is W, and the range of W is 3.5mm≤W≤4mm.

[0015] Furthermore, the third groove has a second groove bottom surface, and the crown block group also includes: a fourth groove, which is arranged on the second groove bottom surface, and the extension direction of the fourth groove is consistent with the extension direction of the third groove; wherein the fourth groove includes a first groove segment and a second groove segment connected to each other, the first groove segment extends along an arc trajectory, and the second groove segment extends along a curved trajectory.

[0016] Furthermore, the first slot section includes a first slot end and a second slot end, the second slot section includes a third slot end and a fourth slot end, and the second slot end is connected to the third slot end; the horizontal distance between the first slot end and the second slot end is L3, and the horizontal distance between the third slot end and the fourth slot end is L4; the ratio of L3 to L4 ranges from 2 to 4.

[0017] Furthermore, each unit pattern block also includes: a fifth groove, the fifth groove extends from the crown surface to the shoulder surface, the depth of the fifth groove is Z, and the range of Z is 1.5mm≤Z≤2mm; a reinforcement sheet embedded in the fifth groove.

[0018] Furthermore, the tire also includes: a side surface, the side surface and the shoulder surface are connected by a connecting end surface; wherein the connecting end surface is an inclined surface, along the axial direction of the tire body, the width of the connecting end surface is X, and the width of the shoulder surface is Y; the ratio range of X to Y is Q, and the range of Q is 0.05≤Q≤0.3.

[0019] Further, the ratio of W1 to W2 is 1 / 1.17; and / or the ratio of H1 to H2 is 1 / 1.01.

[0020] The technical solution of the utility model is applied, and the tire includes a carcass and a plurality of pattern block groups, and the plurality of pattern block groups are sequentially arranged on the carcass along the circumferential direction of the carcass; each pattern block group includes: two groups of unit pattern blocks, the two groups of unit pattern blocks are sequentially arranged along the axial direction of the carcass 100, and the two groups of unit pattern blocks are centrally symmetrically arranged; wherein each group of unit pattern blocks includes: a crown block group, which is arranged on the crown surface, and the width of the crown block group is W1; a shoulder block group, which is arranged on the shoulder surface, and the width of the shoulder block group is W2; the ratio of W1 to W2 is A, and the range of A is 1≤A≤2. In the present application, by adjusting the width ratio of the crown block group and the shoulder block group, A is limited to between 1 and 2, thereby reducing the rolling resistance of the tire, improving the tear resistance of the tire, and thus improving the safety performance of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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:

[0022] Figure 1 A schematic diagram of the tire carcass unfolding structure according to the utility model is shown;

[0023] Figure 2 A schematic structural diagram of a tread block group of a tire according to the utility model is shown;

[0024] Figure 3 Shown according to Figure 2 Cross-section view of the AA surface;

[0025] Figure 4 Shown according to Figure 2 Cross-section of the middle BB surface;

[0026] Figure 5 Shown according to Figure 2 Cross-section of the mid-CC plane;

[0027] Figure 6 Shown according to Figure 2 Cross-section of the middle DD plane;

[0028] Figure 7 Shown according to Figure 2 Cross-section view of the middle EE plane;

[0029] Figure 8 A partial structural schematic diagram of a unit pattern block in a tire according to the utility model is shown.

[0030] The above drawings include the following reference numerals:

[0031] 100, carcass; 101, crown surface; 102, shoulder surface; 103, side surface; 104, connecting end surface; 200, pattern block group; 210, unit pattern block; 211, crown block group; 212, shoulder block group; 201, first groove; 202, second groove; 2010, first groove wall surface; 2011, second groove wall surface; 2012, first groove bottom surface; 203, first protrusion assembly; 204, second protrusion assembly; 205, first middle protrusion block; 2030, first protrusion strip; 2031, second middle protrusion block; 2040, second convex strip; 2041, third middle convex block; 2032, first end convex strip; 2042, second end convex strip; 2051, first body; 2052, second body; 2110, third groove; 2111, third groove wall; 2112, fourth groove wall; 2113, second groove bottom; 2114, fourth groove; 21140, first groove section; 21141, second groove section; 21142, first groove end; 21143, second groove end; 21144, third groove end; 21145, fourth groove end; 213, fifth groove. DETAILED DESCRIPTION

[0032] 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.

[0033] Please refer to Figures 1 to 8 The utility model provides a tire, comprising a carcass 100 and a plurality of pattern block groups 200, wherein the plurality of pattern block groups 200 are sequentially arranged on the carcass 100 along the circumferential direction of the carcass 100; each pattern block group 200 comprises: two groups of unit pattern blocks 210, wherein the two groups of unit pattern blocks 210 are sequentially arranged along the axial direction of the carcass 100, and the two groups of unit pattern blocks 210 are centrally symmetrically arranged; wherein each group of unit pattern blocks 210 comprises: a crown block group 211, which is arranged on the crown surface 101, and the width of the crown block group 211 is W1; a shoulder block group 212, which is arranged on the shoulder surface 102, and the width of the shoulder block group 212 is W2; the ratio of W1 to W2 is A, and the range of A is 1≤A≤2.

[0034] The tire provided by the utility model comprises a carcass 100 and a plurality of pattern block groups 200, wherein the plurality of pattern block groups 200 are sequentially arranged on the carcass 100 along the circumferential direction of the carcass 100; each pattern block group 200 comprises: two groups of unit pattern blocks 210, wherein the two groups of unit pattern blocks 210 are sequentially arranged along the axial direction of the carcass 100, and the two groups of unit pattern blocks 210 are centrally symmetrically arranged; wherein each group of unit pattern blocks 210 comprises: a crown block group 211, which is arranged on the crown surface 101, and the width of the crown block group 211 is W1; a shoulder block group 212, which is arranged on the shoulder surface 102, and the width of the shoulder block group 212 is W2; the ratio of W1 to W2 is A, and the range of A is 1≤A≤2. In the present application, by adjusting the width ratio of the crown block group 211 and the shoulder block group 212, A is limited between 1 and 2, thereby reducing the rolling resistance of the tire, improving the tear resistance of the tire, and thus improving the safety performance of the vehicle.

[0035] Specifically, each pattern block group 200 further includes: a first groove 201, which is arranged between two groups of unit pattern blocks 210, and the first groove 201 extends along the circumferential direction of the carcass 100 in a zigzag trajectory, with the axial direction of the carcass 100 as the width direction, and the width of the first groove 201 is H1; a second groove 202, which is arranged between the crown block group 211 and the shoulder block group 212, and the second groove 202 extends along the circumferential direction of the carcass 100 in a zigzag trajectory, and the width of the second groove 202 is H2; wherein, the ratio of H1 to H2 is B, and the range of B is 1≤B≤2. By limiting the width of the first groove 201 and the width of the second groove 202, it is beneficial to increase the rigidity of the overall pattern during rolling, reduce the energy loss caused by deformation, and reduce the rolling resistance.

[0036] Further, the first groove 201 and / or the second groove 202 comprises: a first groove wall surface 2010 and a second groove wall surface 2011 which are arranged opposite to each other, and the horizontal distance between the first groove wall surface 2010 and the second groove wall surface 2011 gradually increases along the first groove bottom surface 2012 of the first groove 201 and / or the second groove 202 to the corresponding groove opening direction; wherein, the angle between the first groove wall surface 2010 and the second groove wall surface 2011 is C, and the range of C is 22°≤C≤24°. Preferably, the first groove wall surface 2010 and the second groove wall surface 2011 are both inclined surfaces, and by limiting the angle between the first groove wall surface 2010 and the second groove wall surface 2011, not only the foreign matter rejection capacity of the first groove 201 and the second groove 202 is increased, but also the tear resistance of the tire is increased.

[0037] In the specific implementation process, multiple groups of first protrusion components 203 and multiple groups of second protrusion components 204 are arranged in the first groove 201, and each group of first protrusion components 203 and each group of second protrusion components 204 are alternately and spaced along the extension direction of the first groove 201; and / or, multiple groups of first protrusion components 203 and multiple groups of second protrusion components 204 are arranged in the second groove 202, and each group of first protrusion components 203 and each group of second protrusion components 204 are alternately and spaced along the extension direction of the second groove 202; wherein, a first intermediate protrusion block 205 is arranged between adjacent first protrusion components 203 and second protrusion components 204. In the present application, multiple groups of first protrusion assemblies 203 and multiple groups of second protrusion assemblies 204 are arranged in the first groove 201, and a first intermediate protrusion block 205 is arranged between adjacent first protrusion assemblies 203 and second protrusion assemblies 204; multiple groups of first protrusion assemblies 203 and multiple groups of second protrusion assemblies 204 are arranged in the second groove 202, and a first intermediate protrusion block 205 is arranged between adjacent first protrusion assemblies 203 and second protrusion assemblies 204. In this arrangement, the first protrusion assembly 203, the first intermediate protrusion block 205 and the second protrusion assembly 204 cooperate with each other to enhance the foreign matter rejection performance of the tire and reduce the risk of groove bottom damage.

[0038] Specifically, the first protrusion assembly 203 includes a plurality of first protrusions 2030, which are arranged at intervals along the extension direction of the first groove 201 and / or the second groove 202, and a second intermediate protrusion block 2031 is arranged between two adjacent first protrusions 2030; the second protrusion assembly 204 includes a plurality of second protrusions 2040, which are arranged at intervals along the extension direction of the first groove 201 and / or the second groove 202, and a third intermediate protrusion block 2041 is arranged between two adjacent second protrusions 2040; wherein, the length of the first protrusion 2030 is greater than the length of the second protrusion 2040. The length of the first convex strip 2030 is set to be greater than the length of the second convex strip 2040, and the second middle convex block 2031 and the third middle convex block 2041 are matched, so that the first groove 201 and the second groove 202 have first convex strips 2030, second convex strips 2040, second middle convex block 2031 and third middle convex block 2041 of different lengths, so that the first groove 201 and the second groove 202 can adapt to foreign bodies of different shapes and sizes. The second middle convex block 2031 is set between two adjacent first convex strips 2030, and the third middle convex block 2041 is set between two adjacent second convex strips 2040, so as to effectively prevent the phenomenon of foreign bodies being caught between two adjacent first convex strips 2030 and second convex strips 2040. Preferably, the first convex strip 2030 and the second convex strip 2040 are respectively stone-removing glue nails.

[0039] In the specific implementation process, the plurality of first convex strips 2030 include a first end convex strip 2032, the plurality of second convex strips 2040 include a second end convex strip 2042, and the first middle convex block 205 is arranged between the first end convex strip 2032 and the second end convex strip 2042; the minimum distance between the first middle convex block 205 and the first end convex strip 2032 is S1, and the range of S1 is 1mm≤S1≤2mm; the minimum distance between the first middle convex block 205 and the second end convex strip 2042 is S2, and the range of S2 is 1mm≤S2≤2mm. By limiting the range of S1 and S2, it is possible to effectively avoid foreign objects such as stones being clamped between the first end convex strip 2032 and the first middle convex block 205, and between the second end convex strip 2042 and the first middle convex block 205.

[0040] In the embodiment provided in the present application, the length of the first ridge 2030 is L1, and the range of L1 is 10 mm ≤ L1 ≤ 12 mm; the length of the second ridge 2040 is L2, and the range of L2 is 6 mm ≤ L2 ≤ 8 mm.

[0041] Specifically, the first middle protruding block 205 includes: a first body 2051, which is arranged on the first groove bottom surface 2012, and the first body 2051 is a cylindrical structure; a second body 2052, which is arranged at one end of the first body 2051 away from the first groove bottom surface 2012, and the second body 2052 is a hemispherical structure; wherein the range of the diameter D of the cylindrical structure is 1mm≤D≤3mm. By limiting the diameter range of the first body 2051 of the cylindrical structure in the first middle protruding block 205, the first middle protruding block 205 has sufficient strength to discharge foreign matter in the groove.

[0042] In a specific implementation, the crown block group 211 includes: a third groove 2110, which is arranged on the crown surface 101, and the third groove 2110 includes a third groove wall 2111 and a fourth groove wall 2112 which are arranged opposite to each other, and the third groove wall 2111 and the fourth groove wall 2112 are arc-shaped surfaces respectively, and the center of the arc where the third groove wall 2111 is located and the center of the arc where the fourth groove wall 2112 is located are located on the same side; wherein, from the crown surface 101 to the shoulder surface 102, the horizontal distance between the third groove wall 2111 and the fourth groove wall 2112 gradually decreases. Specifically, the radius of the circle where the third groove wall 2111 is located is R1, and the range of R1 is 70mm≤R1≤100mm; the radius of the circle where the fourth groove wall 2112 is located is R2, and the range of R2 is 70mm≤R2≤100mm; the horizontal distance between the third groove wall 2111 and the fourth groove wall 2112 is W, and the range of W is 3.5mm≤W≤4mm. This arrangement can effectively transfer stress when the tire touches the ground, make the stress distribution more uniform, and improve the tire's anti-eccentric wear performance.

[0043] Furthermore, the third groove 2110 has a second groove bottom surface 2113, and the crown block group 211 further includes: a fourth groove 2114, which is arranged on the second groove bottom surface 2113, and the extension direction of the fourth groove 2114 is consistent with the extension direction of the third groove 2110; wherein the fourth groove 2114 includes a first groove segment 21140 and a second groove segment 21141 connected to each other, the first groove segment 21140 extends along an arc track, and the second groove segment 21141 extends along a curved track. By setting the second groove segment 21141 of the fourth groove 2114 to extend along a curved track, the vibration wave generated when the tire rolls can be effectively absorbed, and the tire noise can be reduced.

[0044] Specifically, the first groove section 21140 includes a first groove end 21142 and a second groove end 21143, the second groove section 21141 includes a third groove end 21144 and a fourth groove end 21145, and the second groove end 21143 is connected to the third groove end 21144; the horizontal distance between the first groove end 21142 and the second groove end 21143 is L3, and the horizontal distance between the third groove end 21144 and the fourth groove end 21145 is L4; the ratio of L3 to L4 ranges from 2 to 4. Preferably, the ratio of L3 to L4 is 3, and such a setting can help the fourth groove 2114 absorb the vibration wave generated when the tire rolls, and reduce the noise during the tire driving process.

[0045] Each unit pattern block 210 further includes: a fifth groove 213, the fifth groove 213 extends from the crown surface 101 to the shoulder surface 102, the depth of the fifth groove 213 is Z, and the range of Z is 1.5mm≤Z≤2mm; a reinforcing sheet embedded in the fifth groove 213. Preferably, the reinforcing sheet is a steel sheet. By limiting the depth of the fifth groove 213, and the fifth groove 213 extends from the crown surface 101 to the shoulder surface 102, when the tire touches the ground, the stress is effectively transferred, the stress distribution is more uniform, and the anti-eccentric wear performance of the tire is improved.

[0046] The tire further includes: a sidewall 103, and the sidewall 103 is connected to the shoulder surface 102 by a connecting end surface 104; wherein the connecting end surface 104 is an inclined surface, and along the axial direction of the tire body 100, the width of the connecting end surface 104 is X, and the width of the shoulder surface 102 is Y; the ratio range of X to Y is Q, and the range of Q is 0.05≤Q≤0.3. The connecting end surface 104 is formed by the chamfer between the sidewall 103 and the shoulder surface 102, and the value of Q is preferably 1 / 10, which effectively increases the rigidity of the overall pattern during rolling, reduces the energy loss caused by deformation, and reduces the rolling resistance.

[0047] In specific implementation, preferably, the ratio of W1 to W2 is 1 / 1.17; and / or, the ratio of H1 to H2 is 1 / 1.01. When the ratio of the depth of the first groove 201 and the second groove 202 to the width of the contact surface of the tire body 100 is 0.07, it is beneficial to increase the rigidity of the overall pattern during rolling, reduce the energy loss caused by deformation, and reduce the rolling resistance. Among them, the contact surface is the surface where the tire contacts the ground, and the width direction of the contact surface is the axial direction of the tire body.

[0048] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0049] The tire provided by the utility model comprises a carcass 100 and a plurality of pattern block groups 200, wherein the plurality of pattern block groups 200 are sequentially arranged on the carcass 100 along the circumferential direction of the carcass 100; each pattern block group 200 comprises: two groups of unit pattern blocks 210, wherein the two groups of unit pattern blocks 210 are sequentially arranged along the axial direction of the carcass 100, and the two groups of unit pattern blocks 210 are centrally symmetrically arranged; wherein each group of unit pattern blocks 210 comprises: a crown block group 211, which is arranged on the crown surface 101, and the width of the crown block group 211 is W1; a shoulder block group 212, which is arranged on the shoulder surface 102, and the width of the shoulder block group 212 is W2; the ratio of W1 to W2 is A, and the range of A is 1≤A≤2. In the present application, by adjusting the width ratio of the crown block group 211 and the shoulder block group 212, A is limited between 1 and 2, thereby reducing the rolling resistance of the tire, improving the tear resistance of the tire, and thus improving the safety performance of the vehicle.

[0050] The tire of the present application, by embedding the reinforcing sheet in the fifth groove, improves the anti-eccentric wear performance of the tire, and cooperates with the fourth groove design, can effectively reduce the tire noise. Through the specific pattern groove width ratio design (i.e. the ratio of H1 to H2), the rolling resistance of the tire is effectively reduced, and the fuel-saving performance of the vehicle is improved. Through the specific pattern block width ratio (i.e. the ratio of W1 to W2) and shoulder profile (connection end face setting) design, the rigidity of the shoulder is effectively increased, the tear resistance of the tire is increased, and the phenomenon of block falling at the shoulder is reduced. At the same time, the bottom adopts a new stone-removing rubber nail (the first raised component 203, the second raised component 204 and the first middle raised block 205, the second middle raised block 2031 and the third middle raised block 2041) design to increase the stone-removing performance of the tire, solving the problem that traditional low rolling resistance tires are easy to clamp stones.

[0051] 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, comprising a carcass (100) and a plurality of tread block groups (200), wherein the plurality of tread block groups (200) are sequentially arranged on the carcass (100) along the circumferential direction of the carcass (100); characterized in that: Each of the pattern block groups (200) comprises: Two groups of unit pattern blocks (210), the two groups of unit pattern blocks (210) are arranged in sequence along the axial direction of the carcass (100), and the two groups of unit pattern blocks (210) are arranged in a centrally symmetrical manner; Wherein, each group of unit pattern blocks (210) comprises: A tread crown block group (211) is arranged on the tread crown surface (101), and the width of the tread crown block group (211) is W1; A shoulder block group (212) is arranged on the shoulder surface (102), and the width of the shoulder block group (212) is W2; The ratio of W1 to W2 is A, and the range of A is 1≤A≤2.

2. The tire according to claim 1, characterized in that Each of the pattern block groups (200) further comprises: A first groove (201) is arranged between two groups of the unit pattern blocks (210), the first groove (201) extending in a zigzag trajectory along the circumferential direction of the carcass (100), with the axial direction of the carcass (100) as the width direction, and the width of the first groove (201) is H1; A second groove (202) is arranged between the crown block group (211) and the shoulder block group (212), the second groove (202) extending in a circumferential direction of the carcass (100) in a zigzag trajectory, and the width of the second groove (202) is H2; Among them, the ratio of H1 to H2 is B, and the range of B is 1≤B≤2.

3. The tire according to claim 2, characterized in that The first groove (201) and / or the second groove (202) comprises: A first groove wall surface (2010) and a second groove wall surface (2011) are arranged opposite to each other, and a horizontal distance between the first groove wall surface (2010) and the second groove wall surface (2011) gradually increases along a first groove bottom surface (2012) of the first groove (201) and / or the second groove (202) to a corresponding groove opening direction; The included angle between the first groove wall surface (2010) and the second groove wall surface (2011) is C, and the range of C is 22°≤C≤24°.

4. The tire according to claim 3, characterized in that A plurality of groups of first protrusion components (203) and a plurality of groups of second protrusion components (204) are arranged in the first groove (201), and each group of the first protrusion components (203) and each group of the second protrusion components (204) are arranged alternately and at intervals along the extension direction of the first groove (201); and / or, A plurality of groups of first protrusion components (203) and a plurality of groups of second protrusion components (204) are arranged in the second groove (202), and each group of the first protrusion components (203) and each group of the second protrusion components (204) are arranged alternately and at intervals along the extension direction of the second groove (202); Wherein, a first middle protrusion block (205) is arranged between the adjacent first protrusion components (203) and the second protrusion components (204).

5. The tire according to claim 4, characterized in that The first protrusion assembly (203) comprises a plurality of first protrusions (2030), the plurality of first protrusions (2030) being arranged at intervals along the extension direction of the first groove (201) and / or the second groove (202), and a second intermediate protrusion block (2031) being arranged between two adjacent first protrusions (2030); The second protrusion assembly (204) comprises a plurality of second protrusions (2040), the plurality of second protrusions (2040) being arranged at intervals along the extension direction of the first groove (201) and / or the second groove (202), and a third middle protrusion block (2041) being arranged between two adjacent second protrusions (2040); Wherein, the length of the first convex strip (2030) is greater than the length of the second convex strip (2040).

6. The tire according to claim 5, characterized in that The plurality of first convex strips (2030) include a first end convex strip (2032), the plurality of second convex strips (2040) include a second end convex strip (2042), and the first middle convex block (205) is arranged between the first end convex strip (2032) and the second end convex strip (2042); The minimum distance between the first middle raised block (205) and the first end convex strip (2032) is S1, and the range of S1 is 1mm≤S1≤2mm; The minimum distance between the first middle raised block (205) and the second end raised strip (2042) is S2, and the range of S2 is 1mm≤S2≤2mm.

7. The tire according to claim 5, characterized in that The length of the first convex strip (2030) is L1, and the range of L1 is 10mm≤L1≤12mm; The length of the second convex strip (2040) is L2, and the range of L2 is 6mm≤L2≤8mm.

8. The tire according to claim 4, characterized in that The first middle raised block (205) comprises: A first body (2051) is arranged on the bottom surface (2012) of the first groove, and the first body (2051) is a cylindrical structure; A second body (2052) is arranged at one end of the first body (2051) away from the first groove bottom surface (2012), and the second body (2052) is a hemispherical structure; Wherein, the diameter D of the cylindrical structure is in the range of 1mm≤D≤3mm.

9. The tire according to claim 1, characterized in that The crown block set (211) comprises: A third groove (2110) is arranged on the tread crown surface (101), the third groove (2110) comprising a third groove wall surface (2111) and a fourth groove wall surface (2112) arranged opposite to each other, the third groove wall surface (2111) and the fourth groove wall surface (2112) are arc-shaped surfaces respectively, and the center of the arc where the third groove wall surface (2111) is located is located on the same side as the center of the arc where the fourth groove wall surface (2112) is located; Wherein, in the direction from the crown surface (101) to the shoulder surface (102), the horizontal distance between the third groove wall surface (2111) and the fourth groove wall surface (2112) gradually decreases.

10. The tire according to claim 9, characterized in that The radius of the circle where the third groove wall surface (2111) is located is R1, The range of R1 is 70mm≤R1≤100mm; The radius of the circle where the fourth groove wall surface (2112) is located is R2, and the range of R2 is 70mm≤R2≤100mm; The horizontal distance between the third groove wall surface (2111) and the fourth groove wall surface (2112) is W, and the range of W is 3.5mm≤W≤4mm.

11. The tire according to claim 9, characterized in that The third groove (2110) has a second groove bottom surface (2113), and the crown block group (211) further includes: a fourth groove (2114), arranged on the bottom surface (2113) of the second groove, wherein the extension direction of the fourth groove (2114) is consistent with the extension direction of the third groove (2110); Wherein, the fourth groove (2114) includes a first groove segment (21140) and a second groove segment (21141) which are connected to each other, the first groove segment (21140) extends along an arc-shaped trajectory, and the second groove segment (21141) extends along a curved trajectory.

12. The tire according to claim 11, characterized in that The first slot section (21140) includes a first slot end (21142) and a second slot end (21143), the second slot section (21141) includes a third slot end (21144) and a fourth slot end (21145), and the second slot end (21143) is connected to the third slot end (21144); The horizontal distance between the first slot end (21142) and the second slot end (21143) is L3, and the horizontal distance between the third slot end (21144) and the fourth slot end (21145) is L4; The ratio of L3 to L4 ranges from 2 to 4.

13. The tire according to claim 1, characterized in that Each of the unit pattern blocks (210) further comprises: a fifth groove (213), the fifth groove (213) extending from the crown surface (101) to the shoulder surface (102), the depth of the fifth groove (213) being Z, and the range of Z being 1.5 mm ≤ Z ≤ 2 mm; The reinforcing sheet is embedded in the fifth groove (213).

14. The tire according to claim 1, characterized in that The tire also includes: A tire side surface (103), wherein the tire side surface (103) is connected to the tire shoulder surface (102) via a connecting end surface (104); The connecting end surface (104) is an inclined surface, and along the axial direction of the tire body (100), the width of the connecting end surface (104) is X, and the width of the shoulder surface (102) is Y; The ratio range of X to Y is Q, and the range of Q is 0.05≤Q≤0.

3.

15. The tire according to claim 2, characterized in that The ratio of W1 to W2 is 1 / 1.17; and / or the ratio of H1 to H2 is 1 / 1.01.

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