CN217994018U - Tyre for vehicle wheels - Google Patents

Abstract

The utility model provides a tire, the pattern structure on the tread of which comprises a plurality of circumferential grooves extending along the circumferential direction to form a plurality of pattern blocks and a plurality of transverse grooves transversely penetrating through each pattern block and arranged along the circumferential direction at intervals to form a plurality of pattern parts, and each pattern part is provided with a cutter groove; one pattern portion and one lateral groove adjacent to the one pattern portion form a pattern pitch, and each pattern block comprises a first pattern pitch, a second pattern pitch, a third pattern pitch, a fourth pattern pitch, a fifth pattern pitch and a sixth pattern pitch, wherein the widths of the first pattern pitch, the second pattern pitch, the third pattern pitch, the fourth pattern pitch, the fifth pattern pitch and the sixth pattern pitch are respectively P1, P2, P3, P4, P5 and P6; the structures of the pattern parts of the first pattern pitch and the second pattern pitch are different; the structures of the pattern parts of the third pattern pitch and the fourth pattern pitch are different; the structure of the pattern part in the fifth pattern pitch is different from that of the pattern part in the sixth pattern pitch; wherein P1= P2, P3= P4, P5= P6, P1: p3=0.81 to 0.85, and P3: p5=0.80 to 0.84, in order to solve the problem of the prior art that the noise of the all-road-condition tire is large.

Description

Tyre for vehicle wheels

Technical Field

The utility model relates to a tire technical field particularly, relates to a tire.

Background

With the increasing market of SUV cars (i.e. sport utility vehicles), users concentrate more on the running performance of the cars under all road conditions, and tires are key parts for the running of the cars, thus having great influence on the safety and comfort of the running.

AT present, for AT tires (namely all-road tires), people pay more attention to the off-road performance, the stone removing and tear resistance performance is better, but the silencing performance is not good, and when the AT tires are driven on expressways and urban road surfaces, the all-road tires cannot meet the requirement of low noise.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a tire to solve the great problem of the noise of the full road condition tire among the prior art.

In order to achieve the above object, according to an aspect of the present invention, there is provided a tire including: the tire tread is provided with a pattern structure, the pattern structure comprises a plurality of circumferential grooves extending along the circumferential direction of the tire so as to divide the pattern structure into a plurality of pattern blocks, the pattern structure also comprises a plurality of transverse grooves transversely penetrating the plurality of pattern blocks and arranged at intervals along the circumferential direction of the tire so as to divide each pattern block into a plurality of pattern parts, and each pattern part is provided with a cutter groove; in each block, one pattern portion and one lateral groove adjacent thereto constitute one pattern pitch, and each block includes a first pattern pitch, a second pattern pitch, a third pattern pitch, a fourth pattern pitch, a fifth pattern pitch, and a sixth pattern pitch; the structure of the pattern part in the first pattern pitch is different from that of the pattern part in the second pattern pitch; the pattern part in the third pattern pitch and the pattern part in the fourth pattern pitch have different structures; the pattern part in the fifth pattern pitch and the pattern part in the sixth pattern pitch have different structures; the widths of first, second, third, fourth, fifth and sixth pattern pitches are P1, P2, P3, P4, P5 and P6, respectively; wherein P1= P2, P3= P4, P5= P6, P1: the value range of P3 is 0.81 to 0.85, and P3: p5 ranges from 0.80 to 0.84.

Further, first pattern pitch, second pattern pitch, third pattern pitch, fourth pattern pitch, and fifth pattern pitch are N1, N2, N3, N4, N5, and N6, respectively, in number by sixth pattern pitch; wherein, N1: n2: n3: n4: n5: n6=11:10:13:13:9:8.

further, the plurality of circumferential grooves include a first circumferential groove, a second circumferential groove, a third circumferential groove and a fourth circumferential groove which are sequentially arranged from inside to outside along the width direction of the tire so as to divide the pattern structure into five pattern blocks; the five pattern blocks comprise three crown pattern blocks and two shoulder pattern blocks which are respectively positioned at two opposite sides of the three crown pattern blocks; the three crown pattern blocks comprise a first crown pattern block, a second crown pattern block and a third crown pattern block which are sequentially arranged from inside to outside along the width direction of the tire; the two shoulder pattern blocks comprise a first shoulder pattern block and a second shoulder pattern block, the first shoulder pattern block is located on one side, close to the first circumferential groove, of the three crown pattern blocks, and the second shoulder pattern block is located on one side, close to the fourth circumferential groove, of the three crown pattern blocks.

Furthermore, the circumferential groove comprises a plurality of groove parts which are sequentially connected along the circumferential direction of the tire, each groove part comprises a first groove section, and a second groove section and a third groove section which are respectively positioned at two opposite sides of the first groove section, the central line of each first groove section and the central line of the corresponding second groove section are respectively crossed with the central line of the corresponding third groove section, the included angle between the central line of each second groove section and the central line of each third groove section and the central plane S of the tire is alpha, and the value range of the alpha is 4-8 degrees; in each groove part of the first circumferential groove and the fourth circumferential groove, the second groove section is connected with one end, close to the central plane S of the tire, of the first groove section, and the third groove section is connected with one end, far away from the central plane S of the tire, of the first groove section; and/or in each of the second and third circumferential grooves, the second groove segment is connected to an end of the first groove segment remote from the central plane S of the tyre, and the third groove segment is connected to an end of the first groove segment close to the central plane S of the tyre; and/or the included angle between the central line of the second groove section in each groove part of the first circumferential groove and the fourth circumferential groove and the central line of the second groove section in each groove part of the second circumferential groove and the third circumferential groove is 2 alpha; the angle between the center line of the third groove segment in each groove portion of the first and fourth circumferential grooves and the center line of the third groove segment in each groove portion of the second and third circumferential grooves is 2 α.

Furthermore, one side, close to the first circumferential groove, of the first shoulder pattern block is provided with a plurality of first step structures, and the plurality of first step structures and the plurality of second groove sections of the first circumferential groove are arranged in a one-to-one correspondence manner; and/or one side of the first crown pattern block close to the first circumferential groove is provided with a plurality of second step structures, and the plurality of second step structures and the plurality of third groove sections of the first circumferential groove are arranged in a one-to-one correspondence manner; and/or one side, close to the fourth circumferential groove, of the second shoulder pattern block is provided with a plurality of third step structures, and the plurality of third step structures and the plurality of second groove sections of the fourth circumferential groove are arranged in a one-to-one correspondence manner; and/or one side of the third crown pattern block close to the fourth circumferential groove is provided with a plurality of fourth step structures, and the fourth step structures and the third groove sections of the fourth circumferential groove are arranged in a one-to-one correspondence manner; and/or one side of the first crown pattern block close to the second circumferential groove is provided with a plurality of fifth step structures, and the fifth step structures and the second groove sections of the second circumferential groove are arranged in a one-to-one correspondence manner; and/or one side of the second crown pattern block close to the second circumferential groove is provided with a plurality of sixth stepped structures, and the sixth stepped structures and the second groove sections of the second circumferential groove are arranged in a one-to-one correspondence manner; and/or one side of the third crown pattern block close to the third circumferential groove is provided with a plurality of seventh stepped structures, and the seventh stepped structures and the second groove sections of the third circumferential groove are arranged in a one-to-one correspondence manner; and/or one side of the second crown pattern block close to the third circumferential groove is provided with a plurality of eighth step structures, and the eighth step structures and the second groove sections of the third circumferential groove are arranged in a one-to-one correspondence mode.

Furthermore, a plurality of first transverse grooves are arranged on the second crown pattern block at intervals along the circumferential direction of the tire, the plurality of first transverse grooves comprise a plurality of first straight transverse grooves and a plurality of first fold-line transverse grooves, and a first fold-line transverse groove is arranged between any two adjacent first straight transverse grooves; wherein the angle θ =62 ° to 68 ° between the centerline of the first linear transverse groove and the central plane S of the tire; and/or the first zigzag-type transverse groove comprises a first groove wall surface and a second groove wall surface which are oppositely arranged, and the value range of an included angle gamma between a connecting line between the first end of the first groove wall surface and the second end of the second groove wall surface and the central plane S of the tire is 64-70 degrees; and/or the first fold line type transverse groove comprises a fourth groove section and two fifth groove sections respectively positioned at two ends of the fourth groove section, the included angle beta between the central line of the fourth groove section and the central plane S of the tire ranges from 48 degrees to 52 degrees, and a first boss is arranged in the fourth groove section; and/or each pattern part of the second crown pattern block is provided with a groove and groove combination, the groove and groove combination comprises a first communicating groove and a first communicating groove, the first end of the first communicating groove is communicated with the second circumferential groove or the third circumferential groove, and the second end of the first communicating groove is communicated with the first end of the first communicating groove; the second end of the first communicating cutter groove is communicated with a first fold line type transverse groove arranged on one side of the corresponding pattern part; the central line of the groove and knife slot combination and the central line of the first fold line type transverse groove are arranged in a crossed mode.

Furthermore, a plurality of second transverse grooves are arranged on the first crown pattern block and the third crown pattern block at intervals along the circumferential direction of the tire, the plurality of second transverse grooves comprise a plurality of second arc-shaped transverse grooves and a plurality of second fold-line-shaped transverse grooves, and a second fold-line-shaped transverse groove is arranged between any two adjacent second arc-shaped transverse grooves; wherein, the value range of the included angle delta between the connecting line between the two ends of any one groove wall surface of the second arc-shaped transverse groove and the central plane S of the tire is 48-52 degrees; and/or the second fold-line type transverse groove comprises a sixth groove section and two seventh groove sections respectively positioned at two ends of the sixth groove section, the center line of the sixth groove section is parallel to the center line of the seventh groove section, the width of the sixth groove section is smaller than that of the seventh groove section, the depth of the sixth groove section is larger than that of the seventh groove section, and the included angle epsilon between the center line of the sixth groove section and the central plane S of the tire ranges from 48 degrees to 52 degrees; and/or a first chamfer is arranged on at least one groove wall surface of one end, close to the second crown pattern block, of the second fold-line type transverse groove.

Furthermore, a plurality of third transverse grooves which are arranged at intervals along the circumferential direction of the tire are arranged on the shoulder pattern blocks, each third transverse groove comprises an eighth groove section and a ninth groove section which are sequentially connected, and the eighth groove section is positioned on one side of the ninth groove section, which is close to the three crown pattern blocks; wherein, the included angle sigma between the central line of the eighth groove section and the central line of the ninth groove section ranges from 138 degrees to 142 degrees; and/or the included angle eta between the central line of the ninth groove section and the central plane S of the tire ranges from 84 degrees to 88 degrees; and/or a second boss is arranged at the joint of the eighth groove section and the ninth groove section.

Furthermore, each pattern part of the shoulder pattern block is provided with a second communication groove, two ends of each second communication groove are respectively communicated with two third transverse grooves on two sides of the corresponding pattern part, and the value range of an included angle omega between a connecting line between two ends of any one groove wall surface of each second communication groove and the central plane S of the tire is 20-30 degrees; and/or one of any two adjacent pattern parts of the shoulder pattern blocks is provided with a longitudinal groove, two ends of the longitudinal groove are respectively communicated with two third transverse grooves on two sides of the corresponding pattern part, and the central line of the longitudinal groove is parallel to the central plane S of the tire.

Furthermore, the plurality of third transverse grooves comprise a plurality of first shoulder transverse grooves and a plurality of second shoulder transverse grooves, and a second shoulder transverse groove is arranged between any two adjacent first shoulder transverse grooves; in the first shoulder transverse groove, a tenth groove section is arranged at one end, far away from the eighth groove section, of the ninth groove section, the minimum width of the tenth groove section is larger than the maximum width of the ninth groove section, and the width of the tenth groove section is gradually increased along the direction far away from the ninth groove section; and/or in the second shoulder transverse groove, a second chamfer is arranged on at least one groove wall surface of one end, far away from the ninth groove section, of the eighth groove section.

Use the technical scheme of the utility model, the utility model discloses a tire includes: the tire tread is provided with a pattern structure, the pattern structure comprises a plurality of circumferential grooves extending along the circumferential direction of the tire so as to divide the pattern structure into a plurality of pattern blocks, the pattern structure also comprises a plurality of transverse grooves transversely penetrating the plurality of pattern blocks and arranged at intervals along the circumferential direction of the tire so as to divide each pattern block into a plurality of pattern parts, and each pattern part is provided with a cutter groove; in each block, one pattern part and one transverse groove adjacent to the pattern part form a pattern pitch, and each block comprises a first pattern pitch, a second pattern pitch, a third pattern pitch, a fourth pattern pitch, a fifth pattern pitch and a sixth pattern pitch; the structure of the pattern part in the first pattern pitch is different from that of the pattern part in the second pattern pitch; the pattern part in the third pattern pitch and the pattern part in the fourth pattern pitch have different structures; the pattern part in the fifth pattern pitch and the pattern part in the sixth pattern pitch have different structures; the widths of first, second, third, fourth, fifth and sixth pattern pitches are P1, P2, P3, P4, P5 and P6, respectively; wherein P1= P2, P3= P4, P5= P6, P1: the value range of P3 is 0.81 to 0.85, and P3: p5 ranges from 0.80 to 0.84. Thus, the pattern structure on the tire tread of the tire adopts the arrangement mode that six pattern pitches are arranged in disorder along the circumferential direction of the tire so as to disperse the frequency of impact sound generated when the pattern blocks impact the road surface, thereby being capable of inhibiting the generation of noise; each pattern part is provided with a cutter groove, and each cutter groove is internally provided with different bent steel sheets so as to improve the integral rigidity of the pattern structure, improve the shock absorption capability of the pattern structure and ensure that the vibration of the tire and the ground is absorbed by the tire as much as possible, thereby reducing the noise generated when the tire runs, not only ensuring the off-road performance of the tire, but also meeting the requirement of urban road conditions on comfort, and solving the problem of higher noise of the tire under all road conditions in the prior art.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a reference drawing of a first part of the structure of the pattern of the tread of a tyre according to the invention;

fig. 2 shows a reference diagram of the structure of a second part of the pattern structure of the tread of the tire according to the invention;

FIG. 3 shows an enlarged partial view of the pattern structure shown in FIG. 2 at A;

figure 4 shows an enlarged partial view at B of the pattern structure shown in figure 2;

FIG. 5 shows an enlarged partial view of the pattern structure shown in FIG. 2 at C;

FIG. 6 shows a close-up view of the pattern structure shown in FIG. 2 at D;

FIG. 7 shows an enlarged partial view of the pattern structure shown in FIG. 2 at E;

figure 8 shows an enlarged partial view at F of the pattern structure shown in figure 2;

FIG. 9 shows a cross-sectional view of a sixth groove segment of the tread pattern shown in FIG. 8;

FIG. 10 shows an enlarged partial view of the pattern structure shown in FIG. 2 at G;

FIG. 11 shows a cross-sectional view of the tread structure of FIG. 10 taken along the direction I-I;

FIG. 12 shows a close-up view of the pattern structure shown in FIG. 2 at H;

fig. 13 shows a reference diagram of the third partial structure of the pattern structure of the tread of the tire according to the invention;

FIG. 14 illustrates a cross-sectional view of a first sipe of the pattern structure illustrated in FIG. 13;

FIG. 15 shows a cross-sectional view of a second sipe of the pattern structure shown in FIG. 13;

FIG. 16 shows a cross-sectional view of a third sipe of the tread pattern shown in FIG. 13;

FIG. 17 shows a cross-sectional view of a fourth sipe of the pattern structure shown in FIG. 13;

FIG. 18 shows a cross-sectional view of a fifth sipe of the pattern structure shown in FIG. 13;

FIG. 19 shows a cross-sectional view of a sixth sipe of the pattern structure shown in FIG. 13;

fig. 20 shows a cross-sectional view of the seventh sipe of the pattern structure shown in fig. 13.

Wherein the figures include the following reference numerals:

10. a circumferential groove; 11. a first circumferential groove; 12. a second circumferential groove; 13. a third circumferential groove; 14. a fourth circumferential groove; 101. a first groove section; 102. a second groove section; 103. a third groove section;

20. pattern blocks; 200. a pattern part; 21. a first shoulder pattern block; 22. a first crown block; 23. a second crown block; 24. a third crown block; 25. a second shoulder pattern block;

30. a lateral trench; 31. a first lateral trench; 311. a first linear lateral trench; 312. a first fold line type transverse groove; 3121. a fourth groove section; 3122. a fifth trough section; 3123. a first boss; 32. a second lateral trench; 321. a second arc-shaped transverse groove; 322. a second fold-line type transverse groove; 3221. a sixth trough section; 3222. a seventh trough section; 3223. a first chamfer; 33. a third lateral trench; 3301. an eighth groove section; 3302. a ninth trough section; 3303. a tenth trough section; 3304. a second boss; 3305. a second chamfer; 331. a first shoulder transverse groove; 332. a second shoulder transverse groove;

40. a cutter groove; 41. a first knife slot; 411. a first boss; 42. a second knife slot; 421. a second boss; 43. a third knife slot; 431. a third boss; 44. a fourth knife slot; 441. a fourth boss; 45. a fifth knife slot; 451. a fifth boss; 46. a sixth knife slot; 461. a sixth boss; 47. a seventh knife slot; 471. a seventh boss; 48. an eighth knife slot; 50. a groove and cutter groove combination; 51. a first communicating groove; 52. a first communicating cutter groove;

60. a stepped structure; 61. a first stepped structure; 62. a second stepped structure; 63. a third step structure; 64. a fourth stair step structure; 65. a fifth stair step structure; 66. a sixth stepped structure; 67. a seventh stepped structure; 68. an eighth stair step structure; 70. A second communicating groove; 80. a longitudinal groove; 100. an outer peripheral surface.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 to 20, the present invention provides a tire, including: a tread provided with a pattern structure, wherein the pattern structure comprises a plurality of circumferential grooves 10 extending along the circumferential direction of the tire so as to divide the pattern structure into a plurality of pattern blocks 20, and a plurality of transverse grooves 30 transversely penetrating the plurality of pattern blocks 20 and arranged at intervals along the circumferential direction of the tire so as to divide each pattern block 20 into a plurality of pattern portions 200, and each pattern portion 200 is provided with a cutter groove 40; in each block 20, one lug 200 and one lateral groove 30 adjacent thereto constitute one pattern pitch, each block 20 comprising a first pattern pitch, a second pattern pitch, a third pattern pitch, a fourth pattern pitch, a fifth pattern pitch and a sixth pattern pitch; the structure of pattern portions 200 in the first pattern pitch and pattern portions 200 in the second pattern pitch are different; pattern portions 200 in the third pattern pitch and pattern portions 200 in the fourth pattern pitch have different structures; pattern portions 200 in the fifth pattern pitch and pattern portions 200 in the sixth pattern pitch have different structures; the widths of first, second, third, fourth, fifth and sixth pattern pitches are P1, P2, P3, P4, P5 and P6, respectively; wherein P1= P2, P3= P4, P5= P6, P1: the value range of P3 is 0.81 to 0.85, and P3: p5 ranges from 0.80 to 0.84.

Thus, the pattern structure on the tread of the tire of the utility model adopts the arrangement mode that six pattern pitches are arranged in disorder along the circumferential direction of the tire so as to disperse the frequency of the impact sound generated when the pattern block 20 impacts the road surface, thereby being capable of inhibiting the generation of noise; each pattern part 200 is provided with a cutter groove 40, and each cutter groove 40 is internally provided with different bent steel sheets so as to improve the integral rigidity of the pattern structure, improve the shock absorption capacity of the pattern structure and enable the vibration of the tire and the ground to be absorbed by the tire as much as possible, thereby reducing the noise generated when the tire runs, not only ensuring the off-road performance of the tire, but also meeting the requirement of urban road conditions on comfort, and solving the problem of higher noise of the tire under the whole road condition in the prior art.

Specifically, "circumferential" refers to a direction around the axis of rotation of the tire; "lateral" means a direction parallel to the axis of rotation of the tire, that is, the width direction of the tire.

Preferably, first pattern pitch, second pattern pitch, third pattern pitch, fourth pattern pitch, fifth pattern pitch are N1, N2, N3, N4, N5 and N6, respectively, in number by sixth pattern pitch; wherein, N1: n2: n3: n4: n5: n6=11:10:13:13:9:8.

as shown in fig. 1 and 2, the plurality of circumferential grooves 10 includes a first circumferential groove 11, a second circumferential groove 12, a third circumferential groove 13 and a fourth circumferential groove 14 which are arranged in this order from inside to outside in the width direction of the tire to divide the pattern structure into five blocks 20; the five lugs 20 include three crown lugs and two shoulder lugs located on opposite sides of the three crown lugs, respectively; the three crown pattern blocks comprise a first crown pattern block 22, a second crown pattern block 23 and a third crown pattern block 24 which are sequentially arranged from inside to outside along the width direction of the tire; the two shoulder blocks include a first shoulder block 21 and a second shoulder block 25, the first shoulder block 21 is located on one side of the three crown blocks close to the first circumferential groove 11, and the second shoulder block 25 is located on one side of the three crown blocks close to the fourth circumferential groove 14.

Specifically, in the above-described "from inside to outside", the "inside" refers to a position near the inside of the vehicle after the tire is mounted on the vehicle, and the "outside" refers to a position near the outside of the vehicle after the tire is mounted on the vehicle.

As shown in fig. 1 to 4, the circumferential groove 10 includes a plurality of groove portions connected in sequence in the circumferential direction of the tire, each groove portion includes a first groove segment 101, and a second groove segment 102 and a third groove segment 103 respectively located on opposite sides of the first groove segment 101, a center line of each first groove segment 101 is respectively arranged to intersect with a center line of the corresponding second groove segment 102 and a center line of the corresponding third groove segment 103, an included angle between the center line of each second groove segment 102 and the center line of each third groove segment 103 and a central plane S of the tire is α, and a value range of α is 4 ° to 8 °.

The following table 1 shows the influence of the range of the included angle θ on the noise level of the tire.

Specifically, the included angle α should not be too large, and if the included angle α is larger than 8 °, noise of the tire may be increased; in order to balance the overall performance of the tire, the value of the included angle α is preferably 6 ° to enhance the off-road performance of the pattern structure.

As shown in fig. 3, in each of the groove portions of the first circumferential groove 11 and the fourth circumferential groove 14, the second groove segment 102 is connected to one end of the first groove segment 101 close to the center plane S of the tire, the third groove segment 103 is connected to one end of the first groove segment 101 away from the center plane S of the tire, and the width of the second groove segment 102 is larger than that of the third groove segment 103.

As shown in fig. 4, in each of the groove portions of the second circumferential groove 12 and the third circumferential groove 13, the second groove segment 102 is connected to an end of the first groove segment 101 away from the center plane S of the tire, the third groove segment 103 is connected to an end of the first groove segment 101 close to the center plane S of the tire, and the width of the second groove segment 102 is equal to the width of the third groove segment 103.

As shown in fig. 1 and 2; wherein the angle between the centre line of the second groove segment 102 in each groove portion of the first and fourth circumferential grooves 11, 14 and the centre line of the second groove segment 102 in each groove portion of the second and third circumferential grooves 12, 13 is 2 a; the angle between the center line of the third segment 103 in each of the groove portions of the first and fourth circumferential grooves 11, 14 and the center line of the third segment 103 in each of the groove portions of the second and third circumferential grooves 12, 13 is 2 α.

Specifically, the included angle between the center line of the second groove segment 102 in each groove portion of the first circumferential groove 11 and the center line of the second groove segment 102 in each groove portion of the second circumferential groove 12 is 2 α; the angle between the center line of the second groove segment 102 in each groove portion of the first circumferential groove 11 and the center line of the second groove segment 102 in each groove portion of the third circumferential groove 13 is 2 α; the included angle between the center line of the second groove segment 102 in each groove portion of the fourth circumferential groove 14 and the center line of the second groove segment 102 in each groove portion of the second circumferential groove 12 is 2 α; the included angle between the center line of the second groove segment 102 in each groove portion of the fourth circumferential groove 14 and the center line of the second groove segment 102 in each groove portion of the third circumferential groove 13 is 2 α; the included angle between the center line of the third groove segment 103 in each groove portion of the first circumferential groove 11 and the center line of the third groove segment 103 in each groove portion of the second circumferential groove 12 is 2 α; an angle between a center line of the third groove segment 103 in each groove portion of the first circumferential groove 11 and a center line of the third groove segment 103 in each groove portion of the third circumferential groove 13 is 2 α; an included angle between a center line of the third groove segment 103 in each groove portion of the fourth circumferential groove 14 and a center line of the third groove segment 103 in each groove portion of the second circumferential groove 12 is 2 α; an angle between a center line of the third groove segment 103 in each groove portion of the fourth circumferential groove 14 and a center line of the third groove segment 103 in each groove portion of the third circumferential groove 13 is 2 α.

As shown in fig. 1, 2, 3, and 4, a plurality of first stepped structures 61 are provided on a side of the first shoulder block 21 close to the first circumferential groove 11, the plurality of first stepped structures 61 being provided in one-to-one correspondence with the second groove segments 102 of the plurality of groove portions of the first circumferential groove 11; and/or a side of the first crown block 22 close to the first circumferential groove 11 is provided with a plurality of second stepped structures 62, and the plurality of second stepped structures 62 are provided in one-to-one correspondence with the third groove segments 103 of the plurality of groove portions of the first circumferential groove 11.

Wherein each first step structure 61 is disposed on the second groove segment 102 side of the corresponding pattern portion 200 of the first shoulder block 21, which is close to the corresponding groove portion of the first circumferential groove 11, and the extending direction of each first step structure 61 is parallel to the center line of the second groove segment 102 of the corresponding groove portion of the first circumferential groove 11; each second stepped structure 62 is disposed on the third groove segment 103 side of the corresponding pattern portion 200 of the first crown block 22 close to the corresponding groove portion of the first circumferential groove 11, and the extending direction of each second stepped structure 62 is parallel to the center line of the third groove segment 103 of the corresponding groove portion of the first circumferential groove 11, so as to enhance the cross-country ground gripping capability and the stone and mud discharging capability of the pattern structure.

As shown in fig. 1, 2, 3 and 4, a plurality of third step structures 63 are provided on a side of the second shoulder block 25 close to the fourth circumferential groove 14, and the plurality of third step structures 63 are provided in one-to-one correspondence with the second groove segments 102 of the plurality of groove portions of the fourth circumferential groove 14; and/or a plurality of fourth step structures 64 are provided on a side of the third crown block 24 close to the fourth circumferential groove 14, and the plurality of fourth step structures 64 are provided in one-to-one correspondence with the third groove segments 103 of the plurality of groove portions of the fourth circumferential groove 14.

Wherein, each third step structure 63 is disposed on the side of the second groove segment 102 of the corresponding pattern portion 200 of the second shoulder pattern block 25, which is close to the corresponding groove portion of the fourth circumferential groove 14, and the extending direction of each third step structure 63 is parallel to the central line of the second groove segment 102 of the corresponding groove portion of the fourth circumferential groove 14; each fourth step structure 64 is disposed on the third groove segment 103 side of the corresponding pattern portion 200 of the third crown block 24 close to the corresponding groove portion of the fourth circumferential groove 14, and the extending direction of each fourth step structure 64 is parallel to the center line of the third groove segment 103 of the corresponding groove portion of the fourth circumferential groove 14, so as to enhance the cross-country road-holding capacity and the stone and mud discharging capacity of the pattern structure.

As shown in fig. 1, 2, 3, and 4, a plurality of fifth step structures 65 are provided on a side of the first crown block 22 close to the second circumferential groove 12, the plurality of fifth step structures 65 being provided in one-to-one correspondence with the second groove segments 102 of the plurality of groove portions of the second circumferential groove 12; and/or a side of the second crown block 23 close to the second circumferential groove 12 is provided with a plurality of sixth stepped structures 66, the plurality of sixth stepped structures 66 being provided in one-to-one correspondence with the second groove segments 102 of the plurality of groove portions of the second circumferential groove 12.

Wherein each fifth stepped structure 65 is provided at a sharp corner of the second groove segment 102 side of the corresponding pattern portion 200 of the first crown block 22 close to the corresponding groove portion of the second circumferential groove 12, and the extending direction of each fifth stepped structure 65 is provided crosswise to the center line of the second groove segment 102 of the corresponding groove portion of the second circumferential groove 12; each sixth stepped structure 66 is disposed on the second groove segment 102 side of the corresponding pattern portion 200 of the second crown block 23, which is close to the corresponding groove portion of the second circumferential groove 12, and the extending direction of each sixth stepped structure 66 is parallel to the center line of the second groove segment 102 of the corresponding groove portion of the second circumferential groove 12, so as to enhance the cross-country road-holding capacity and the stone and mud discharging capacity of the pattern structure.

As shown in fig. 1, 2, 3, and 4, the third crown block 24 is provided with a plurality of seventh step structures 67 on a side close to the third circumferential groove 13, the plurality of seventh step structures 67 being provided in one-to-one correspondence with the second groove segments 102 of the plurality of groove portions of the third circumferential groove 13; and/or a side of the second crown block 23 close to the third circumferential groove 13 is provided with a plurality of eighth step structures 68, and the plurality of eighth step structures 68 are provided in one-to-one correspondence with the second groove segments 102 of the plurality of groove portions of the third circumferential groove 13.

Wherein each seventh stepped structure 67 is provided at the sharp corner of the second groove segment 102 side of the corresponding tread portion 200 of the third crown block 24 close to the corresponding groove portion of the third circumferential groove 13, and the extending direction of each seventh stepped structure 67 is provided crosswise to the center line of the second groove segment 102 of the corresponding groove portion of the third circumferential groove 13; each eighth stepped structure 68 is disposed on the side of the second groove segment 102 of the corresponding tread portion 200 of the second crown block 23 close to the corresponding groove portion of the third circumferential groove 13, and the extending direction of each eighth stepped structure 68 is parallel to the center line of the second groove segment 102 of the corresponding groove portion of the third circumferential groove 13, so as to enhance the off-road gripping capability and the stone and mud discharging capability of the tread structure.

As shown in fig. 1, 2, 5 to 6, the second crown block 23 is provided with a plurality of first transverse grooves 31 at intervals in the circumferential direction of the tire, the plurality of first transverse grooves 31 includes a plurality of first straight transverse grooves 311 and a plurality of first fold-line transverse grooves 312, and one first fold-line transverse groove 312 is provided between any two adjacent first straight transverse grooves 311.

Wherein one end of each first linear transverse groove 311 is communicated with the middle of the second groove segment 102 of the corresponding groove portion of the second circumferential groove 12, and the other end of each first linear transverse groove 311 is communicated with the middle of the second groove segment 102 of the corresponding groove portion of the third circumferential groove 13; one end of each first zigzag-type lateral groove 312 communicates with a junction between the respective two groove portions of the second circumferential groove 12, and the other end of each first zigzag-type lateral groove 312 communicates with a junction between the respective two groove portions of the third circumferential groove 13.

As shown in fig. 5, the angle θ between the center line of the first linear lateral groove 311 and the center plane S of the tire ranges from 62 ° to 68 °.

The following table 2 shows the influence of the range of the included angle θ on the noise level of the tire.

Preferably, in order to balance the overall performance of the tire, the included angle θ is 65 °.

As shown in fig. 6, the first zigzag-type lateral groove 312 includes a first groove wall surface and a second groove wall surface that are disposed opposite to each other, and an angle γ between a line connecting a first end of the first groove wall surface (i.e., an end close to the second circumferential groove 12) and a second end of the second groove wall surface (i.e., an end close to the third circumferential groove 13) and the center plane S of the tire is in a range of 64 ° to 70 °.

The first groove wall surface is a wall surface of the second groove segment 102 of the first fold line type transverse groove 312 close to the corresponding groove portion, and the second groove wall surface is a wall surface of the third groove segment 103 of the first fold line type transverse groove 312 close to the corresponding groove portion.

The following table 3 shows the influence of the range of the included angle γ on the noise level of the tire.

Preferably, in order to balance the overall performance of the tyre, the included angle γ is 67 °.

As shown in fig. 1 and 2, the first linear transverse groove 311 extends in a direction opposite to the first zigzag transverse groove 312, i.e., an angle between a center line of the first linear transverse groove 311 and a line connecting the first end of the first groove wall surface and the second end of the second groove wall surface of the first zigzag transverse groove 312 is 180 ° - θ - γ.

As shown in table 4 below, the influence of the same or opposite general extending direction of the first straight transverse groove 311 and the first zigzag transverse groove 312 on the noise level of the tire is shown.

Preferably, in order to balance the overall performance of the tyre, it is necessary to have the first rectilinear transverse groove 311 extend substantially in the opposite direction to that of the first foldline transverse groove 312.

As shown in fig. 6, the first zigzag-type transverse groove 312 includes a fourth groove segment 3121 and two fifth groove segments 3122 respectively located at two ends of the fourth groove segment 3121, an included angle β between a center line of the fourth groove segment 3121 and a center plane S of the tire is in a range of 48 ° to 52 °, a first boss 3123 is provided in the fourth groove segment 3121, an extending direction of the first boss 3123 is parallel to the center line of the fourth groove segment 3121, and noise of the tire tube cavity is greatly improved.

The influence of the presence or absence of the first boss 3123 in the fourth groove section 3121 on the noise level of the tire is shown in table 5 below.

Preferably, in order to balance the overall performance of the tire, the first boss 3123 is required to be provided in the fourth groove section 3121.

As shown in fig. 13, the eighth sipe 48 is provided on the first boss 3123, the extending direction of the eighth sipe 48 is parallel to the center line of the fourth groove segment 3121, and both ends of the eighth sipe 48 are respectively communicated with the two fifth groove segments 3122 of the corresponding first zigzag-type lateral groove 312, so as to balance the overall rigidity of the second crown block 23 and reduce the noise generated from the tire.

As shown in fig. 6, each of the tread portions 200 of the second crown block 23 is provided with a groove sipe combination 50, the groove sipe combination 50 includes a first communicating groove 51 and a first communicating groove 52, a first end of the first communicating groove 51 communicates with the second circumferential groove 12 or the third circumferential groove 13, and a second end of the first communicating groove 51 communicates with a first end of the first communicating groove 52; the second end of the first communicating sipe 52 communicates with the first zigzag-type lateral groove 312 provided on one side of the corresponding tread 200 to increase the connectivity of the second crown block 23; the center line of the groove and slot combination is crossed with the center line of the first fold line type transverse groove 312.

Wherein, in the two groove siping combinations 50 respectively located at the opposite sides of each first fold line type transverse groove 312, the first end of the first groove siping combination 50 is communicated with the first groove section 101 of the corresponding groove portion of the second circumferential groove 12, and the second end of the first groove siping combination 50 is communicated with one end, close to the third circumferential groove 13, of the fourth groove section 3121 of the corresponding first fold line type transverse groove 312; the first end of the second groove and sipe combination 50 is communicated with the first groove section 101 of the corresponding groove portion of the third circumferential groove 13, and the second end of the second groove and sipe combination 50 is communicated with the end of the fourth groove section 3121 of the corresponding first fold-line type transverse groove 312, which is close to the second circumferential groove 12.

As shown in fig. 13, 16, 19 and 20, each of the tread portions 200 of the second crown block 23 is provided with a third sipe 43, a sixth sipe 46 and a seventh sipe 47, and the bottom of the third sipe 43 is provided with a third projection 431, the bottom of the sixth sipe 46 is provided with a sixth projection 461, and the bottom of the seventh sipe 47 is provided with a seventh projection 471, so as to enhance the stability of the third sipe 43, the sixth sipe 46 and the seventh sipe 47, balance the rigidity of the edge of the corresponding tread portion 200 in the second crown block 23, prevent the corresponding tread portion 200 from falling down when the tire is running, and balance the overall performance of the tire.

As shown in fig. 1, 2, and 7 to 9, a plurality of second transverse grooves 32 are disposed on each of the first crown block 22 and the third crown block 24 at intervals along the circumferential direction of the tire, the plurality of second transverse grooves 32 include a plurality of second arc-shaped transverse grooves 321 and a plurality of second fold-shaped transverse grooves 322 (i.e., dumbbell-shaped grooves), and one second fold-shaped transverse groove 322 is disposed between any two adjacent second arc-shaped transverse grooves 321, so as to increase the drainage performance and the off-road performance of the tire.

In the first crown block 22, one end of each second arc-shaped lateral groove 321 communicates with the intersection of the corresponding two groove portions of the first circumferential groove 11, and the other end of each second arc-shaped lateral groove 321 communicates with the intersection of the corresponding two groove portions of the second circumferential groove 12; one end of each second zigzag-type lateral groove 322 communicates with the first groove segment 101 of the corresponding groove portion of the first circumferential groove 11, and the other end of each second zigzag-type lateral groove 322 communicates with the first groove segment 101 of the corresponding groove portion of the second circumferential groove 12.

In the third crown block 24, one end of each second arc-shaped lateral groove 321 communicates with the junction of the corresponding two groove portions of the fourth circumferential groove 14, and the other end of each second arc-shaped lateral groove 321 communicates with the junction of the corresponding two groove portions of the third circumferential groove 13; one end of each of the second zigzag-type lateral grooves 322 communicates with the first groove section 101 of the corresponding groove portion of the fourth circumferential groove 14, and the other end of each of the second zigzag-type lateral grooves 322 communicates with the first groove section 101 of the corresponding groove portion of the third circumferential groove 13.

As shown in fig. 7, an included angle δ between a connecting line between both ends of any one of the groove wall surfaces of the second arc-shaped lateral groove 321 and the central plane S of the tire has a value ranging from 48 ° to 52 °, and if the included angle δ is too small, it will not satisfy the requirements for the off-road performance and the noise performance of the tire, and if it is too large, it will have a negative effect on the reduction of the noise.

The following table 6 shows the effect of the range of the angle δ on the noise level of the tire.

Preferably, in order to balance the overall performance of the tyre, the included angle δ has a value of 50 °.

As shown in fig. 8, the second zigzag-type transverse groove 322 includes a sixth groove segment 3221 and two seventh groove segments 3222 respectively located at two ends of the sixth groove segment 3221, a centerline of the sixth groove segment 3221 is parallel to a centerline of the seventh groove segment 3222, a width of the sixth groove segment 3221 is smaller than a width of the seventh groove segment 3222, a depth of the sixth groove segment 3221 is greater than a depth of the seventh groove segment 3222, and an included angle epsilon between the centerline of the sixth groove segment 3221 and a central plane S of the tire ranges from 48 ° to 52 °.

Although the closed grooves are beneficial to reducing noise generated when the tire runs, the blocks 20 of the all-terrain tire are large and have high rigidity, and if the blocks are not divided, the impact between the blocks 20 and the ground is severe, so that much noise is generated; therefore, we connect the two seventh groove segments 3222 with the narrow sixth groove segment 3221 to balance the overall rigidity of the first crown block 22 and the third crown block 24, reduce the impact effect with the ground when they travel, and thus reduce the generation of noise.

The presence or absence of the sixth trough section 3221 in the second zigzag-type transverse trough 322 and the effect of the specific size of the sixth trough section 3221 on the noise level of the tire are shown in table 7 below.

Preferably, the width L1 of the sixth groove segment 3221 ranges from 2mm to 3mm.

Further preferably, the width L1 of the sixth groove segment 3221 is 2mm.

As shown in fig. 8, the second zigzag-type lateral groove 322 is provided at least at one groove wall surface thereof near one end of the second crown block 23 with a first chamfer 3223.

As shown in fig. 13, three sixth sipes 46 are provided on each of the tread portions 200 of the first crown block 22 and the third crown block 24, and the sixth sipes 46 are fine bent sipes to balance the rigidity of the whole of the first crown block 22 and the third crown block 24, ensure the balance of the pressure in the whole ground contact area of the tire, and prevent abnormal wear in the later period.

As shown in fig. 19, the bottom of the sixth sipe 46 is provided with a sixth boss 461, which is also used for balancing the rigidity of the edges of the first crown block 22 and the third crown block 24, and ensuring that the edges of the first crown block 22 and the third crown block 24 are not easy to topple and the rubber is not easy to curl during the running, thereby ensuring the wear performance of the first crown block 22 and the third crown block 24 during the running.

As shown in fig. 1, 2, 10 to 12, the shoulder blocks are provided with a plurality of third lateral grooves 33 arranged at intervals in the circumferential direction of the tire, each third lateral groove 33 includes an eighth groove section 3301 and a ninth groove section 3302 connected in sequence, and the eighth groove section 3301 is located on the side of the ninth groove section 3302 close to the three crown blocks; wherein, the angle σ between the center line of the eighth slot segment 3301 and the center line of the ninth slot segment 3302 ranges from 138 ° to 142 °; and/or the angle η between the centerline of the ninth slot section 3302 and the tire centerline plane S ranges from 84 ° to 88 °, with either too small or too large of the angle η negatively affecting the reduction of tire noise.

As shown in fig. 10 and 11, a second boss 3304 perpendicular to the center line of the third transverse groove 33 is disposed at the junction of the eighth groove section 3301 and the ninth groove section 3302 to change the airflow direction in the third transverse groove 33, so as to reduce the pumping noise; the width of the second boss 3304 gradually decreases from the groove bottom surface of the third lateral groove 33 toward a direction close to the outer circumferential surface 100 of the tire.

Specifically, the minimum width L2 of the second boss 3304 ranges from 1mm to 5mm, and the minimum distance h between the second boss 3304 and the outer circumferential surface 100 of the tire ranges from 1.5mm to 4.5mm.

The presence or absence of the third transverse grooves 33 and the effect of the particular dimensions of the second bosses 3304 on the noise level of the tire are shown in table 8 below.

Preferably, the minimum width L2 of the second boss 3304 ranges from 2mm to 3mm, and the minimum distance h between the second boss 3304 and the outer circumferential surface 100 of the tire ranges from 1.5mm to 2.5mm, which is not too large, and if it is too large, the noise reduction ability of the second boss 3304 is not significant enough.

Further preferably, the minimum width L2 of the second boss 3304 is 2mm, and the minimum distance h between the second boss 3304 and the outer circumferential surface 100 of the tire is 1.5mm.

As shown in fig. 1, each pattern portion 200 of the shoulder block is provided with a second communicating groove 70, two ends of each second communicating groove 70 are respectively communicated with two third transverse grooves 33 on two sides of the corresponding pattern portion 200, an included angle ω between a connecting line between two ends of any one groove wall surface of each second communicating groove 70 and a central plane S of the tire has a value range of 20 ° to 30 °, on one hand, in order to cut the pattern block, so that the overall pressure of the pattern structure is kept consistent when the pattern structure is grounded, on the other hand, the connectivity of the pattern structure is increased, and the off-road performance and urban wet driving performance of the tire are ensured.

As shown in fig. 1, one of any two adjacent tread portions 200 of the shoulder blocks is provided with a longitudinal groove 80, both ends of the longitudinal groove 80 are respectively communicated with two third lateral grooves 33 on both sides of the corresponding tread portion 200, and a center line of the longitudinal groove 80 is parallel to a center plane S of the tire.

Specifically, in the same pattern part 200, the second communication groove 70 is located on the side of the longitudinal groove 80 close to the center plane S.

As shown in fig. 1, 2, and 10 to 12, the plurality of third transverse grooves 33 includes a plurality of first shoulder transverse grooves 331 and a plurality of second shoulder transverse grooves 332, and one second shoulder transverse groove 332 is disposed between any two adjacent first shoulder transverse grooves 331; wherein, in the first shoulder transverse groove 331, an end of the ninth groove section 3302 away from the eighth groove section 3301 is provided with a tenth groove section 3303, a minimum width of the tenth groove section 3303 is greater than a maximum width of the ninth groove section 3302, and a width of the tenth groove section 3303 gradually increases in a direction away from the ninth groove section 3302; and/or in the second shoulder transverse groove 332, a second chamfer 3305 is provided at least one groove wall surface of the eighth groove section 3301 at an end distal from the ninth groove section 3302.

In the first shoulder block 21, one end of each first shoulder lateral groove 331 communicates with the first groove segment 101 of the corresponding groove portion of the first circumferential groove 11; one end of each second shoulder lateral groove 332 communicates with the intersection of the corresponding two groove portions of the first circumferential groove 11.

In the second shoulder block 25, one end of each first shoulder lateral groove 331 communicates with the first groove segment 101 of the corresponding groove portion of the fourth circumferential groove 14; one end of each second shoulder transverse groove 332 communicates with the intersection of two corresponding groove portions of the fourth circumferential groove 14.

As shown in fig. 13 to 18, of any adjacent two ribs 200 of each shoulder block, one rib 200 is provided with a first sipe 41, a third sipe 43, and a fifth sipe 45, and the other rib 200 is provided with a second sipe 42, and a fourth sipe 44, for each balancing the rigidity of the rib 200; bent steel sheets are arranged inside the first sipe 41, the second sipe 42, the third sipe 43, the fourth sipe 44 and the fifth sipe 45, a first boss 411 is arranged at the bottom of the first sipe 41, a second boss 421 is arranged at the bottom of the second sipe 42, a third boss 431 is arranged at the bottom of the third sipe 43, a fourth boss 441 is arranged at the bottom of the fourth sipe 44, and a fifth boss 451 is arranged at the bottom of the fifth sipe 45 to balance the rigidity of the edge of the corresponding pattern portion 200.

According to the utility model discloses a pattern structure of tire sets up most preferred pattern structure on the tire that the model is LT265/65R17 112S to make whole scheme and carry out the noise test, the result is shown as following table 9:

the regulatory requirements for C1 tire noise in the european labeling act are set forth in table 10 below:

according to the actual measurement result, the utility model discloses a noise that the produced noise of tire can satisfy the noise requirement to B level tire product in the European standard.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

the utility model discloses a tire includes: a tread provided with a pattern structure, wherein the pattern structure comprises a plurality of circumferential grooves 10 extending along the circumferential direction of the tire so as to divide the pattern structure into a plurality of pattern blocks 20, and a plurality of transverse grooves 30 transversely penetrating the plurality of pattern blocks 20 and arranged at intervals along the circumferential direction of the tire so as to divide each pattern block 20 into a plurality of pattern portions 200, and each pattern portion 200 is provided with a cutter groove 40; in each block 20, one lug 200 and one lateral groove 30 adjacent thereto constitute one pattern pitch, each block 20 comprising a first pattern pitch, a second pattern pitch, a third pattern pitch, a fourth pattern pitch, a fifth pattern pitch and a sixth pattern pitch; the structure of pattern portions 200 in the first pattern pitch and pattern portions 200 in the second pattern pitch are different; pattern portions 200 in the third pattern pitch and pattern portions 200 in the fourth pattern pitch have different structures; pattern portion 200 in the fifth pattern pitch and pattern portion 200 in the sixth pattern pitch have different structures; first, second, third, fourth, fifth, and sixth pattern pitches have widths P1, P2, P3, P4, P5, and P6, respectively; wherein P1= P2, P3= P4, P5= P6, P1: the value range of P3 is 0.81 to 0.85, and P3: p5 ranges from 0.80 to 0.84. Thus, the tread pattern structure of the tire of the utility model adopts the arrangement mode that six pattern pitches are arranged in disorder along the circumferential direction of the tire to disperse the frequency of the impact sound generated when the pattern blocks 20 impact the road surface, thereby being capable of inhibiting the generation of noise; each pattern part 200 is provided with a cutter groove 40, and each cutter groove 40 is internally provided with different bent steel sheets so as to improve the integral rigidity of the pattern structure, improve the shock absorption capability of the pattern structure and ensure that the vibration of the tire and the ground is absorbed by the tire as much as possible, thereby reducing the noise generated when the tire runs, not only ensuring the off-road performance of the tire, but also meeting the requirement of urban road conditions on comfort, and solving the problem of higher noise of the tire under all road conditions in the prior art.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "above … …", "above … …", "above … … upper surface", "above", etc. may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A tire, comprising:

the tread is provided with a pattern structure, the pattern structure comprises a plurality of circumferential grooves (10) extending along the circumferential direction of the tire so as to divide the pattern structure into a plurality of pattern blocks (20), the pattern structure also comprises a plurality of transverse grooves (30) transversely penetrating the plurality of pattern blocks (20) and arranged at intervals along the circumferential direction of the tire so as to divide each pattern block (20) into a plurality of pattern parts (200), and each pattern part (200) is provided with a siping (40);

in each of said blocks (20), one of said tread portions (200) and one of said lateral grooves (30) adjacent thereto constitute one tread pitch, each of said blocks (20) including a first tread pitch, a second tread pitch, a third tread pitch, a fourth tread pitch, a fifth tread pitch, and a sixth tread pitch;

the structure of the pattern portion (200) in the first pattern pitch and the structure of the pattern portion (200) in the second pattern pitch are different; the pattern portions (200) in the third pattern pitch and the pattern portions (200) in the fourth pattern pitch are different in structure; the pattern portions (200) in the fifth pattern pitch and the pattern portions (200) in the sixth pattern pitch are different in structure;

said first pattern pitch, said second pattern pitch, said third pattern pitch, said fourth pattern pitch, said fifth pattern pitch, and said sixth pattern pitch have widths P1, P2, P3, P4, P5, and P6, respectively; wherein P1= P2, P3= P4, P5= P6, P1: the value range of P3 is 0.81 to 0.85, and P3: p5 ranges from 0.80 to 0.84.

2. Tire according to claim 1, wherein said first pattern pitch, said second pattern pitch, said third pattern pitch, said fourth pattern pitch, said fifth pattern pitch are N1, N2, N3, N4, N5 and N6, respectively, in the number of said sixth pattern pitch; wherein, N1: n2: n3: n4: n5: n6=11:10:13:13:9:8.

3. the tire according to claim 1,

the plurality of circumferential grooves (10) comprise a first circumferential groove (11), a second circumferential groove (12), a third circumferential groove (13) and a fourth circumferential groove (14) which are sequentially arranged from inside to outside along the width direction of the tire so as to divide the pattern structure into five pattern blocks (20);

the five lugs (20) comprise three crown lugs and two shoulder lugs which are respectively positioned at two opposite sides of the three crown lugs;

the three crown pattern blocks comprise a first crown pattern block (22), a second crown pattern block (23) and a third crown pattern block (24) which are sequentially arranged from inside to outside along the width direction of the tire;

the two shoulder pattern blocks comprise a first shoulder pattern block (21) and a second shoulder pattern block (25), the first shoulder pattern block (21) is located on one side, close to the first circumferential groove (11), of the three crown pattern blocks, and the second shoulder pattern block (25) is located on one side, close to the fourth circumferential groove (14), of the three crown pattern blocks.

4. A tyre as claimed in claim 3, wherein said circumferential groove (10) comprises a plurality of groove portions connected in series in the circumferential direction of the tyre, said groove portions comprising a first groove segment (101) and a second groove segment (102) and a third groove segment (103) located on opposite sides of said first groove segment (101), respectively, a centre line of each of said first groove segments (101) being arranged crosswise to a centre line of the corresponding second groove segment (102) and a centre line of the corresponding third groove segment (103), respectively, an angle between a centre line of each of said second groove segments (102) and a centre line of each of said third groove segments (103) and a centre plane S of the tyre being α, both values of α being in the range of 4 ° to 8 °; wherein the content of the first and second substances,

in each of said circumferential grooves (11, 14), said second groove segment (102) is connected to an end of said first groove segment (101) close to the central plane S of the tyre, and said third groove segment (103) is connected to an end of said first groove segment (101) remote from the central plane S of the tyre; and/or

In each of the groove portions of the second circumferential groove (12) and the third circumferential groove (13), the second groove segment (102) is connected to an end of the first groove segment (101) remote from the central plane S of the tire, and the third groove segment (103) is connected to an end of the first groove segment (101) close to the central plane S of the tire; and/or

The angle between the centre line of the second groove segment (102) in each of the groove portions of the first circumferential groove (11) and the fourth circumferential groove (14) and the centre line of the second groove segment (102) in each of the groove portions of the second circumferential groove (12) and the third circumferential groove (13) is 2 a; the angle between the centre line of the third segment (103) in each of the groove portions of the first circumferential groove (11) and the fourth circumferential groove (14) and the centre line of the third segment (103) in each of the groove portions of the second circumferential groove (12) and the third circumferential groove (13) is 2 a.

5. Tire according to claim 4,

a plurality of first step structures (61) are arranged on one side, close to the first circumferential groove (11), of the first shoulder pattern block (21), and the plurality of first step structures (61) are arranged in one-to-one correspondence with the plurality of second groove sections (102) of the first circumferential groove (11); and/or

A plurality of second stepped structures (62) are arranged on one side, close to the first circumferential groove (11), of the first crown pattern block (22), and the plurality of second stepped structures (62) and the plurality of third groove sections (103) of the first circumferential groove (11) are arranged in a one-to-one correspondence manner; and/or

A plurality of third step structures (63) are arranged on one side, close to the fourth circumferential groove (14), of the second shoulder pattern block (25), and the third step structures (63) are arranged in one-to-one correspondence with the second groove sections (102) of the fourth circumferential groove (14); and/or

A plurality of fourth step structures (64) are arranged on one side, close to the fourth circumferential groove (14), of the third crown pattern block (24), and the fourth step structures (64) are arranged in one-to-one correspondence with the third groove sections (103) of the fourth circumferential groove (14); and/or

A plurality of fifth stepped structures (65) are arranged on one side of the first crown block (22) close to the second circumferential groove (12), and the fifth stepped structures (65) are arranged in one-to-one correspondence with the second groove sections (102) of the second circumferential groove (12); and/or

A plurality of sixth stepped structures (66) are provided on a side of the second crown block (23) close to the second circumferential groove (12), the plurality of sixth stepped structures (66) being provided in one-to-one correspondence with the plurality of second groove segments (102) of the second circumferential groove (12); and/or

A plurality of seventh stepped structures (67) are arranged on one side of the third crown pattern block (24) close to the third circumferential groove (13), and the seventh stepped structures (67) are arranged in one-to-one correspondence with the second groove sections (102) of the third circumferential groove (13); and/or

A plurality of eighth stepped structures (68) are arranged on one side of the second crown block (23) close to the third circumferential groove (13), and the plurality of eighth stepped structures (68) and the plurality of second groove sections (102) of the third circumferential groove (13) are arranged in a one-to-one correspondence manner.

6. A tyre as claimed in claim 3, wherein said second crown block (23) is provided with a plurality of first transverse grooves (31) at intervals along the circumferential direction of the tyre, said plurality of first transverse grooves (31) comprising a plurality of first rectilinear transverse grooves (311) and a plurality of first zigzag transverse grooves (312), one first zigzag transverse groove (312) being provided between any two adjacent first rectilinear transverse grooves (311); wherein the content of the first and second substances,

-the angle θ =62 ° to 68 ° between the centre line of the first rectilinear transverse groove (311) and the central plane S of the tyre; and/or

The first fold line type transverse groove (312) comprises a first groove wall surface and a second groove wall surface which are oppositely arranged, and the value range of an included angle gamma between a connecting line between a first end of the first groove wall surface and a second end of the second groove wall surface and the central plane S of the tire is 64-70 degrees; and/or

The first broken line type transverse groove (312) comprises a fourth groove section (3121) and two fifth groove sections (3122) respectively located at two ends of the fourth groove section (3121), an included angle beta between a center line of the fourth groove section (3121) and a center plane S of the tire ranges from 48 degrees to 52 degrees, and a first boss (3123) is arranged in the fourth groove section (3121); and/or

Each pattern part (200) of the second crown pattern block (23) is provided with a groove and sipe combination (50), the groove and sipe combination (50) comprises a first communication groove (51) and a first communication sipe (52), a first end of the first communication groove (51) is communicated with the second circumferential groove (12) or the third circumferential groove (13), and a second end of the first communication groove (51) is communicated with a first end of the first communication sipe (52); a second end of the first communicating sipe (52) communicates with the first fold-line type lateral groove (312) provided at one side of the corresponding pattern portion (200); the center line of the groove and cutter groove combination (50) and the center line of the first fold line type transverse groove (312) are arranged in a crossed mode.

7. A tyre as claimed in claim 3, wherein each of said first crown block (22) and said third crown block (24) is provided with a plurality of second transverse grooves (32) at intervals in the circumferential direction of the tyre, said plurality of second transverse grooves (32) comprising a plurality of second arc-shaped transverse grooves (321) and a plurality of second zigzag-shaped transverse grooves (322), one second zigzag-shaped transverse groove (322) being provided between any two adjacent second arc-shaped transverse grooves (321); wherein the content of the first and second substances,

the value range of an included angle delta between a connecting line between two ends of any one groove wall surface of the second arc-shaped transverse groove (321) and the central plane S of the tire is 48-52 degrees; and/or

The second zigzag-type transverse groove (322) comprises a sixth groove segment (3221) and two seventh groove segments (3222) which are respectively located at two ends of the sixth groove segment (3221), the center line of the sixth groove segment (3221) is parallel to the center line of the seventh groove segment (3222), the width of the sixth groove segment (3221) is smaller than the width of the seventh groove segment (3222), the depth of the sixth groove segment (3221) is larger than the depth of the seventh groove segment (3222), and the included angle epsilon between the center line of the sixth groove segment (3221) and the central plane S of the tire ranges from 48 degrees to 52 degrees; and/or

A first chamfer (3223) is provided on at least one groove wall surface of the second zigzag-type lateral groove (322) near one end of the second crown block (23).

8. A tyre according to claim 3, wherein said shoulder blocks are provided with a plurality of third transverse grooves (33) arranged at intervals in the circumferential direction of the tyre, each of said third transverse grooves (33) comprising an eighth groove segment (3301) and a ninth groove segment (3302) connected in series, said eighth groove segment (3301) being located on the side of said ninth groove segment (3302) close to the three block crowns; wherein the content of the first and second substances,

the value of the included angle zeta between the central line of the eighth groove section (3301) and the central line of the ninth groove section (3302) is 138-142 degrees; and/or

The included angle eta between the central line of the ninth groove section (3302) and the central plane S of the tire ranges from 84 degrees to 88 degrees; and/or

And a second boss (3304) is arranged at the joint of the eighth groove section (3301) and the ninth groove section (3302).

9. The tire according to claim 8,

each pattern part (200) of the shoulder pattern block is provided with a second communication groove (70), two ends of each second communication groove (70) are respectively communicated with two third transverse grooves (33) on two sides of the corresponding pattern part (200), and an included angle omega between a connecting line between two ends of any one groove wall surface of each second communication groove (70) and a central plane S of the tire ranges from 20 degrees to 30 degrees; and/or

One of any two adjacent pattern parts (200) of the shoulder pattern blocks is provided with a longitudinal groove (80), two ends of the longitudinal groove (80) are respectively communicated with two third transverse grooves (33) on two sides of the corresponding pattern part (200), and the central line of the longitudinal groove (80) is parallel to the central plane S of the tire.

10. Tyre according to claim 8, wherein said third plurality of transverse grooves (33) comprises a first plurality of shoulder transverse grooves (331) and a second plurality of shoulder transverse grooves (332), one second shoulder transverse groove (332) being provided between any two adjacent first shoulder transverse grooves (331); wherein, the first and the second end of the pipe are connected with each other,

in the first shoulder transverse groove (331), an end of the ninth groove segment (3302) remote from the eighth groove segment (3301) is provided with a tenth groove segment (3303), a minimum width of the tenth groove segment (3303) is greater than a maximum width of the ninth groove segment (3302), and a width of the tenth groove segment (3303) is gradually increased in a direction remote from the ninth groove segment (3302); and/or

In the second shoulder transverse groove (332), a second chamfer (3305) is provided at least one groove wall surface of an end of the eighth groove section (3301) remote from the ninth groove section (3302).

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