Multi-dimensional depth groove four-season tire

Abstract

The invention relates to the field of tire patterns, and discloses a multi-dimensional depth groove four-season tire which is provided with a plurality of multi-dimensional grooves and cutter grooves. A stepped groove bottom with equal width and three-dimensional depth is arranged in the multi-dimensional groove, the stepped groove bottom comprises a first groove bottom, a second groove bottom and a third groove bottom, and the depths from the groove bottoms to the tread are 2 mm, 4 mm and 6 mm in sequence; the included angle between the groove walls of the two side edges and the longitudinal direction is 1-2 degrees, the included angle between the groove wall between the first groove bottom and the second groove bottom and the longitudinal direction is 1-2 degrees, and the included angle between the groove wall between the second groove bottom and the third groove bottom and the longitudinal direction is 2-3 degrees; and the intersection point of the bottom of the groove is subjected to fillet treatment, the fillet R of the external corner is 0.4-0.6, and the fillet R of the internal corner is 0.1-0.3. The arrangement of the multi-dimensional grooves can effectively improve the snowfield traction force, the snowfield road holding force and the water sliding performance of ice, snow and wet lands of the tire, and the resonance phenomenon is completely eradicated; due to the arrangement of the sawtooth-shaped three-dimensional cutter grooves, the ground gripping of the tires can be further improved; the pattern blocks are asymmetrically staggered, so that the rolling noise of the tire can be greatly reduced.

Description

Technical Field

[0001] The invention relates to the field of tire pattern design, in particular to a multi-dimensional deep groove four-season tire. Background Art

[0002] With the widespread use of all four seasons, more and more tire companies are designing tire treads in a style that is a mixture of summer tires and winter tires to suit different road conditions. Although the existing all-season tire design takes into account the problems of most tires on ice and snow, it is still difficult to improve the grip on ice and snow. How to further improve the grip of all-season tires on ice and snow has become an important issue that tire technicians urgently need to solve.

[0003] Tire grooves have many functions, the main ones being drainage, increased grip, noise reduction and reduced side slip. The groove design increases the contact area between the tire and the ground, thereby increasing friction and enhancing the tire's grip. On dry roads, the groove design also provides better traction and braking capabilities, ensuring that the vehicle can drive stably under various road conditions. When driving at high speeds, the friction between the tire and the road will generate noise. The groove design can effectively discharge the noise and reduce the contact area between the tire and the road, thereby reducing noise.

[0004] Tire grooves also have multiple functions. They not only improve the friction and drainage performance of the vehicle, but also significantly improve the handling performance and driving safety, ensuring the stability and reliability of the vehicle under different road conditions. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a multi-dimensional deep groove all-season tire, which has good snow traction, snow grip and hydroplaning performance on ice and snow wetlands.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: A multi-dimensional deep groove all-season tire, the tire comprising a middle rib, a left rib, a right rib, a left shoulder rib and a right shoulder rib extending in the tire circumferential direction; the middle rib is located in the center of the tread, and the left and right sides of the middle rib are respectively provided with side ribs and shoulder ribs in sequence from the inside to the outside; the tire comprises, from left to right, a first longitudinal main groove, a second longitudinal main groove, a third longitudinal main groove and a fourth longitudinal main groove extending in the tire circumferential direction, and the above main grooves are spaced and distributed between the ribs; The middle rib is divided into a plurality of first pattern blocks by a first combination groove arranged obliquely in a transverse direction, wherein the first combination groove comprises a first multidimensional groove and a first sipe, the bottom of the first multidimensional groove is flush with the bottom of the first sipe, the left end of the first multidimensional groove is connected with the second longitudinal main groove, and the first sipe extends from the right end of the first multidimensional groove to be connected with the third longitudinal main groove; The left rib is divided into a plurality of "V"-shaped second pattern blocks by the second combination groove, the first combination groove includes a second multidimensional groove and a second sipe, the left end of the second multidimensional groove is connected with the right end of the second sipe to form a "V" shape, the "V"-shaped angle is 105-115 degrees, the right end of the second multidimensional groove is connected with the second longitudinal main groove, and the left end of the second sipe is connected with the first longitudinal main groove; a curved multidimensional groove is also arranged inside the second pattern block, and the left end of the curved multidimensional groove is connected with the first longitudinal main groove; The right rib is divided into a plurality of third pattern blocks by a third combination groove arranged transversely and obliquely, the third combination groove comprises a third multidimensional groove and a third knife groove, the bottom of the third multidimensional groove is flush with the bottom of the third knife groove, the right end of the third multidimensional groove is connected with the fourth longitudinal main groove, and the third knife groove extends from the left end of the third multidimensional groove to be connected with the third longitudinal main groove; The left shoulder rib is divided into a plurality of fourth pattern blocks by a fourth combination groove arranged transversely and obliquely, the fourth combination groove includes a fourth multidimensional groove and a fourth groove, the fourth multidimensional groove is as wide as the interface of the fourth groove, the right end of the fourth multidimensional groove is connected to the first longitudinal main groove, and the fourth groove extends from the left end of the fourth multidimensional groove to the left edge of the left shoulder rib; a fourth knife groove is also arranged inside the fourth pattern block, and the fourth knife groove extends from the left end of the upper fourth groove to the lower fourth groove at a vertical angle of 24-28°; A longitudinal auxiliary groove is arranged inside the right shoulder rib near the left edge, and is divided into a plurality of fifth pattern blocks by a transversely arranged fifth sipe. A fifth combination groove is arranged inside the fifth pattern block. The fifth combination groove includes a fifth multidimensional groove and a fifth groove. The fifth multidimensional groove is the same width as the interface of the fifth groove. The right end of the fourth multidimensional groove passes through the longitudinal auxiliary groove and is not connected to the fourth longitudinal main groove. The fifth groove extends from the right end of the fifth multidimensional groove to the right edge of the right shoulder rib. The pattern blocks are arranged asymmetrically and staggered on the left and right sides of the tread with the circumferential center axis of the tread, so the pattern blocks on the left and right sides of the tread are arranged asymmetrically and staggered, and the tread pattern blocks are arranged in an optimized staggered manner to avoid resonance noise during the rotation of the tire and greatly reduce the rolling noise of the tire; The multi-dimensional grooves make the formed pattern block structure upgraded and diversified. When the tire rotates and contacts the ground, the air noise generated by the multi-dimensional grooves and pattern blocks is of different frequencies, eliminating the resonance phenomenon; the multi-dimensional grooves and pattern blocks also produce different stresses, providing diversified grip for all-season tires on icy and snowy roads, making it easier for the tires to grip the ground, greatly improving the grip performance of all-season tires; The multi-dimensional groove is provided with a stepped groove bottom of equal width and three-dimensional depth, and the stepped groove bottom includes a first groove bottom, a second groove bottom and a third groove bottom, and the depth of the groove bottom from the tread is 2mm, 4mm and 6mm respectively; the angle between the groove wall at both sides and the longitudinal direction is 1°-2°, the angle between the groove wall between the first groove bottom and the second groove bottom and the longitudinal direction is 1°-2°, and the angle between the groove wall between the second groove bottom and the third groove bottom and the longitudinal direction is 2°-3°; the intersection of the groove bottom is rounded, with a positive corner rounded R0.4-R0.6 and a negative corner rounded R0.1-R0.3. This design can not only ensure that the longitudinal groove has the largest area of ​​snow absorption, but also ensure that the centrifugal force of the snow in the groove is the largest during movement, and the resistance of the tire groove wall is the smallest. Under the force of the tire and the ground, the multi-dimensional stepped groove bottom is easier to form a snow removal demoulding angle, so that the snow and snow water are easier to discharge, the contact area between the tire and the ground is increased, and the snow is removed to the greatest extent, thereby improving the tire's grip.

[0007] The multiple multi-dimensional grooves arranged as above, that is, the multi-dimensional stepped groove bottoms with different heights designed on the inner wall and groove bottom of the main transverse grooves, can reduce the turbulence near the groove wall. Because the turbulence contacts the apex and slope of each layer of the multi-dimensional stepped groove bottom, the turbulence will be confined to the multi-dimensional stepped groove bottom, thereby improving the hydroplaning performance of the tire on icy and snowy wet roads; during the driving process of the tire on icy and snowy roads, under the action of snow or snow water, the multi-dimensional grooves form a reaction force, and the elastic deformation of the rubber is subjected to the reaction force on the snow blocks and snow water in the groove. The resultant force is perpendicular to the multi-dimensional stepped grooves and upward, and the shear stress Fs of the snow in the gap increases. The shear strength increases due to the compression of the vertical force. This shear stress is within the shear strength of the snow, which effectively improves the traction and grip of the tire on icy and snowy ground. Preferably, two sixth sipes are arranged transversely and obliquely inside the first pattern block, and both ends of the sipes are connected to adjacent main grooves; The third pattern block has a seventh knife groove arranged vertically and obliquely inside, and the seventh knife groove divides the third pattern block into two trapezoids by connecting the third multidimensional groove and the third knife groove; the right trapezoidal pattern block has an eighth knife groove and a ninth knife groove arranged horizontally and obliquely inside, and the left trapezoidal pattern block has a tenth knife groove and an eleventh knife groove arranged horizontally and obliquely inside; the tenth knife groove, the eighth knife groove, the eleventh knife groove and the ninth knife groove are arranged in parallel in sequence with staggered positions.

[0008] The fourth pattern block has a twelfth and a thirteenth groove arranged transversely and obliquely inside. The twelfth and thirteenth grooves are located on the right side of the fourth groove. The right end of the thirteenth groove is connected to the first longitudinal main groove, and the right end of the twelfth groove is connected to the first longitudinal main groove through a trapezoidal groove.

[0009] Two fourteenth grooves are arranged transversely and obliquely inside the fifth pattern block, and the two fourteenth grooves are respectively located above and below the fifth groove. The left end of the fourteenth groove is connected to the longitudinal auxiliary groove, and the right end is located inside the pattern block.

[0010] Reasonably arranged multi-slots can increase tire friction and improve grip performance.

[0011] Preferably, in the first pattern block, the first multi-dimensional groove and the first sipe have the same inclination angle; The maximum angle between the first multi-dimensional groove and the horizontal is 15-25°, the groove width is 3-4mm in a gradual manner, and the outer end gradually narrows toward the inner end; The first groove has an angle of 15-25° with the horizontal, a groove width of 0.6-1mm, and a depth of 3-6mm; The sixth knife groove has an angle of 15-25° with the horizontal, a groove width of 0.6-1 mm, and a depth of 3-6 mm.

[0012] Preferably, in the second pattern block, the second multi-dimensional groove has an angle of 15-25° with the horizontal and a groove width of 3-4 mm; The second groove has an angle of 40-60° with the horizontal, a groove width of 0.6-1mm, and a depth of 3-6mm; The maximum angle between the curved multi-dimensional groove and the horizontal is 55-70 degrees, the groove width is 3-4 mm in a gradual manner, and the outer end gradually narrows toward the inner end.

[0013] Preferably, in the third pattern block, the third multi-dimensional groove and the third sipe have the same inclination angle; the third sipe is parallel to the eighth sipe, the ninth sipe, the tenth sipe and the eleventh sipe; The maximum angle between the third multi-dimensional groove and the horizontal is 15-25°, the groove width is 3-4mm in a gradual manner, and the outer end gradually narrows toward the inner end; The seventh groove has an angle of 50-60° with the horizontal, a groove width of 0.6-1mm, and a depth of 3-6mm; The angles between the third knife groove, the eighth knife groove, the ninth knife groove, the tenth knife groove and the eleventh knife groove and the horizontal are 15-25 degrees, the groove width is 0.6-1mm, and the depth is 3-6mm.

[0014] Preferably, in the fourth pattern block, the fourth multi-dimensional groove has an angle of 5°-10° with the horizontal, and a groove width of 3.5-5 mm; The fourth groove has a maximum angle of 5°-10° with the horizontal, a width of 3.5-5 mm, and a depth of 8-8.5 mm; The fourth groove width is 0.6-1mm and the depth is 2-6mm; The angle between the twelfth and thirteenth knife grooves and the horizontal is 5-10 degrees, the groove width is 0.6-1mm, and the depth is 2-6mm.

[0015] Preferably, in the fifth pattern block, the fifth multi-dimensional groove has an angle of 15-20° with the horizontal, a groove width of 3-4 mm in a gradual variation, and the outer end portion gradually narrows toward the inner end portion; The fifth groove has an angle of 15-20° with the horizontal, a width of 3-4 mm, and a depth of 8-8.5 mm; The fifth and fourteenth knife grooves have an angle of 15-20° with the horizontal, a groove width of 0.6-1 mm, and a depth of 2-6 mm.

[0016] Preferably, the second knife groove, the sixth knife groove, the twelfth knife groove and the fourteenth knife groove are serrated.

[0017] The serrated three-dimensional sipes can further improve the friction coefficient of tires on icy and snowy roads because they can not only absorb moisture from between the tire and the road surface, but also penetrate into the ice or snow surface. The serrated three-dimensional sipes give the rubber blocks a multi-dimensional geometric shape in the depth direction, which can improve the shear self-locking ability between the rubber blocks, thereby improving the contact surface of the rubber blocks. The vertical contact force of the rubber blocks with serrated three-dimensional sipes is greater than that of the rubber blocks with ordinary two-dimensional sipes. Therefore, under the action of shear load, the friction displacement rate of the rubber blocks with serrated three-dimensional sipes will be greatly reduced, that is, the grip will be greatly improved.

[0018] The beneficial effects of the present invention are: 1) The pattern blocks are arranged asymmetrically on the left and right sides of the tread with the circumferential center axis of the tread to avoid resonance noise during the rotation of the tire and greatly reduce the rolling noise of the tire; 2) The multi-dimensional grooves make the formed pattern block structure upgraded and diversified. When the tire rotates and touches the ground, the air noise generated by the multi-dimensional grooves and pattern blocks is of different frequencies, eliminating the resonance phenomenon; 3) The multi-dimensional groove design makes it easier to form a snow demolding angle, making it easier to discharge snow and snow water, increasing the contact area between the tire and the ground, and removing snow to the greatest extent. Under the force of snow or snow water, the multi-dimensional groove forms a reaction force, and the elastic deformation of the rubber is reacted to the snow and snow water in the groove, effectively improving the traction and grip of the tire on ice and snow. 4) Multi-dimensional grooves can limit turbulence on the multi-dimensional stepped groove bottom, thereby improving the hydroplaning performance of the tire on icy and snowy wet roads; 5) The serrated three-dimensional sipes can further increase the friction coefficient of the tire on icy and snowy roads, thereby reducing the friction displacement rate of the rubber block, that is, improving the tire's grip. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the all-season tire tread unfolded into a plane.

[0020] Figure 2 Cross-sectional view of multi-dimensional transverse grooves.

[0021] Figure 3 It is a multi-dimensional groove force diagram, F is the force of snow and snow water, and Fs is the reaction force.

[0022] Reference numerals: 21 - first longitudinal main groove, 22 - second longitudinal main groove, 23 - third longitudinal main groove, 24 - fourth longitudinal main groove, 25 - longitudinal auxiliary groove; 11-middle rib, 31-first groove, 41-first multi-dimensional groove, 51-sixth groove; 12-left rib, 32-second sipe, 42-second multi-dimensional groove, 52-curved multi-dimensional groove; 13-right rib, 33-third groove, 43-third multi-dimensional groove, 53-seventh groove, 63-eighth groove, 73-ninth groove, 83-tenth groove, 93-eleventh groove; 14-left shoulder rib, 34-fourth groove, 44-fourth multi-dimensional groove, 64-fourth groove, 74-twelfth groove, 84-thirteenth groove, 94-trapezoidal groove; 15-right shoulder rib, 35-fifth knife groove, 45-fifth multidimensional groove, 65-fifth groove, 75-fourteenth knife groove; 01-the first groove bottom, 02-the second groove bottom, 03-the third groove bottom. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0025] Example 1 A multi-dimensional deep groove all-season tire, such as Figure 1 , 2The tire comprises a middle rib 11, a left rib 12, a right rib 13, a left shoulder rib 14 and a right shoulder rib 15 extending along the circumferential direction of the tire; the middle rib 11 is located in the center of the tread, and the left and right sides of the middle rib 11 are respectively provided with side ribs and shoulder ribs from the inside to the outside; the tire comprises, from left to right, a first longitudinal main groove 21, a second longitudinal main groove 22, a third longitudinal main groove 23 and a fourth longitudinal main groove 24 extending along the circumferential direction of the tire, and the above main grooves are spaced and distributed between the ribs.

[0026] The middle rib 11 is divided into a plurality of first pattern blocks by a first combination groove arranged transversely and obliquely. The first combination groove includes a first multidimensional groove 41 and a first sipe 31. The bottom of the first multidimensional groove 41 is flush with the bottom of the first sipe 31. The left end of the first multidimensional groove 41 is connected to the second longitudinal main groove 22. The first sipe 31 extends from the right end of the first multidimensional groove 41 to be connected to the third longitudinal main groove 23. Two sixth sipes 51 are arranged transversely and obliquely inside the first pattern block, and both ends of the sipes are connected to the adjacent main grooves.

[0027] The left rib 12 is divided into a plurality of "V"-shaped second pattern blocks by the second combination grooves. The first combination grooves include the second multidimensional groove 42 and the second sipe 32. The left end of the second multidimensional groove 42 is connected to the right end of the second sipe 32 to form a "V" shape. The "V" angle is 110°. The right end of the second multidimensional groove 42 is connected to the second longitudinal main groove 22, and the left end of the second sipe 32 is connected to the first longitudinal main groove 21. A curved multidimensional groove 52 is also provided inside the second pattern block. The left end of the curved multidimensional groove 52 is connected to the first longitudinal main groove 21.

[0028] The right rib 13 is divided into a plurality of third pattern blocks by a third combination groove arranged transversely and obliquely. The third combination groove includes a third multidimensional groove 43 and a third sipe 33. The bottom of the third multidimensional groove 43 is flush with the bottom of the third sipe 33. The right end of the third multidimensional groove 43 is connected to the fourth longitudinal main groove 24. The third sipe 33 extends from the left end of the third multidimensional groove 43 to be connected to the third longitudinal main groove 23. A seventh sipe 53 is arranged vertically and obliquely inside the third pattern block. The seventh sipe 53 divides the third pattern block into two trapezoids by connecting the third multidimensional groove 43 and the third sipe 33. An eighth sipe 63 and a ninth sipe 73 are arranged transversely and obliquely inside the right trapezoidal pattern block. A tenth sipe 83 and an eleventh sipe 93 are arranged transversely and obliquely inside the left trapezoidal pattern block. The tenth sipe 83, the eighth sipe 63, the eleventh sipe 93 and the ninth sipe 73 are arranged in parallel and staggered in sequence.

[0029] The left shoulder rib 14 is divided into a plurality of fourth pattern blocks by a fourth combination groove arranged transversely and obliquely. The fourth combination groove includes a fourth multidimensional groove 44 and a fourth groove 64. The fourth multidimensional groove 44 and the fourth groove 64 have the same width at their interfaces. The right end of the fourth multidimensional groove 44 is connected to the first longitudinal main groove 21. The fourth groove 64 extends from the left end of the fourth multidimensional groove 44 to the left edge of the left shoulder rib 14. A fourth sipe 34 is also arranged inside the fourth pattern block. The fourth sipe 34 extends from the left end of the upper fourth groove 64 at a vertical angle of 26° to the lower fourth groove 64. A twelfth sipe 74 and a thirteenth sipe 84 are arranged transversely and obliquely inside the fourth pattern block. The twelfth sipe 74 and the thirteenth sipe 84 are located on the right side of the fourth sipe 34. The right end of the thirteenth sipe 84 is connected to the first longitudinal main groove 21. The right end of the twelfth sipe 74 is connected to the first longitudinal main groove 21 through a trapezoidal groove 94.

[0030] A longitudinal auxiliary groove 25 is arranged inside the right shoulder rib 15 near the left edge, and is divided into a plurality of fifth pattern blocks by a transversely arranged fifth sipe 35. A fifth combination groove is arranged inside the fifth pattern block, and the fifth combination groove includes a fifth multidimensional groove 45 and a fifth groove 65. The fifth multidimensional groove 45 and the fifth groove 65 have the same width at the interface. The right end of the fourth multidimensional groove 44 passes through the longitudinal auxiliary groove 25 and is not connected to the fourth longitudinal main groove 24. The fifth groove 65 extends from the right end of the fifth multidimensional groove 45 to the right edge of the right shoulder rib 15. Two fourteenth sipes 75 are arranged transversely and obliquely inside the fifth pattern block. The two fourteenth sipes 75 are respectively located above and below the fifth sipe 35. The left end of the fourteenth sipe 75 is connected to the longitudinal auxiliary groove 25, and the right end is located inside the pattern block.

[0031] The pattern blocks are asymmetrically and staggeredly distributed on the left and right sides of the tread with the circumferential center axis of the tread.

[0032] The multi-dimensional groove is provided with a stepped groove bottom of equal width and three-dimensional depth, and the stepped groove bottom includes a first groove bottom 01, a second groove bottom 02 and a third groove bottom 03, and the depths of the above groove bottoms from the tread are 2mm, 4mm and 6mm respectively; the angle between the groove walls on both sides and the longitudinal direction is 2°, the angle between the groove wall of the first groove bottom 01 and the second groove bottom 02 and the longitudinal direction is 2°, and the angle between the groove wall of the second groove bottom 02 and the third groove bottom 03 and the longitudinal direction is 3°; the intersection of the groove bottoms is rounded, the positive corner is rounded by R0.5, and the negative corner is rounded by R0.2.

[0033] Furthermore, in the first pattern block, the first multi-dimensional groove 41 has an angle of 25° with the horizontal, a groove width of 3-4 mm in a gradual variation, and gradually narrows from the outer end to the inner end; The first sipe 31 and the sixth sipe 51 have an angle of 25° with the horizontal, a groove width of 0.8 mm, and a depth of 5 mm.

[0034] Furthermore, in the second pattern block, the second multi-dimensional groove 42 has an angle of 25° with the horizontal and a groove width of 3.5 mm; The second sipe 32 has an angle of 45° with the horizontal, a groove width of 0.8 mm, and a depth of 5 mm; The angle between the curved multi-dimensional groove 52 and the horizontal is 60°, the groove width is 3-4 mm in a gradual variation, and the outer end portion gradually narrows toward the inner end portion.

[0035] Furthermore, in the third pattern block, the third multi-dimensional groove 43 has an angle of 25° with the horizontal, a groove width of 3-4 mm in a gradual variation, and gradually narrows from the outer end to the inner end; The seventh sipe 53 has an angle of 55° with the horizontal, a groove width of 0.8 mm, and a depth of 5 mm; The third knife groove 33, the eighth knife groove 63, the ninth knife groove 73, the tenth knife groove 83, and the eleventh knife groove 93 have an angle of 25° with the horizontal, a groove width of 0.8 mm, and a depth of 5 mm.

[0036] Furthermore, in the fourth pattern block, the fourth multi-dimensional groove 44 has an angle of 10° with the horizontal and a groove width of 5 mm; The fourth groove 64 has an angle of 10° with the horizontal, a width of 3.5-5 mm, and a depth of 85 mm; The fourth sipe 34 has a width of 0.6-1 mm and a depth of 2-6 mm; The twelfth knife groove 74 and the thirteenth knife groove 84 have an angle of 10° with the horizontal, a groove width of 0.8 mm, and a depth of 5 mm.

[0037] Furthermore, in the fifth pattern block, the fifth multi-dimensional groove 45 has an angle of 20° with the horizontal, a groove width of 3-4 mm in a gradual variation, and gradually narrows from the outer end to the inner end; The fifth groove 65 has an angle of 20° with the horizontal, a width of 3-4 mm, and a depth of 8 mm; The fifth knife groove 35 and the fourteenth knife groove 75 have an angle of 20° with the horizontal, a groove width of 0.8 mm, and a depth of 5 mm.

[0038] Furthermore, the second sipe 32 , the sixth sipe 51 , the twelfth sipe 74 , and the fourteenth sipe 75 are serrated.

[0039] Comparative Example 1 The multi-dimensional grooves in Example 1 are all changed into ordinary grooves.

[0040] Example 1 and Comparative Example 1 were tested and compared. The test was carried out in accordance with the provisions of UNECE / R117 regulations. The grip test includes a braking test on a vehicle equipped with an ABS system. The shorter the stopping distance, the better the performance of the tire.

[0041] Table 1 As shown in Table 1, the comparison of the experimental data of Comparative Example 1 and Example 1 shows that the ice and snow test of Example 1 takes less time when accelerating from 0-30 km / h, and has a good traction effect per unit distance; the braking distance of ice and snow of Example 1 is smaller, and the braking effect per unit distance is good. In summary, the tire grip of Example 1 is higher, and the braking effect is also better than that of Comparative Example 1.

[0042] The above is a description of the embodiments of the present invention. Through the above description of the disclosed embodiments, professionals and technicians in the field can implement or use the present invention. Various modifications to these embodiments will be apparent to professionals and technicians in the field. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown in this article, but will conform to the widest range consistent with the principles and novelties disclosed herein.

Claims

1. A multi-dimensional deep groove all-season tire, the tire comprising a middle rib (11), a left rib (12), a right rib (13), a left shoulder rib (14) and a right shoulder rib (15) extending in the tire circumferential direction; the middle rib (11) is located in the center of the tread, and the left and right sides of the middle rib (11) are respectively provided with side ribs and shoulder ribs in sequence from the inside to the outside; the tire comprises, from left to right, a first longitudinal main groove (21), a second longitudinal main groove (22), a third longitudinal main groove (23) and a fourth longitudinal main groove (24) extending in the tire circumferential direction, the main grooves being spaced apart and distributed between the ribs; and characterized in that: The middle rib (11) is divided into a plurality of first pattern blocks by a first combination groove arranged transversely and obliquely, the first combination groove comprising a first multidimensional groove (41) and a first sipe (31), the bottom of the first multidimensional groove (41) being flush with the bottom of the first sipe (31), the left end of the first multidimensional groove (41) being connected to the second longitudinal main groove (22), and the first sipe (31) extending from the right end of the first multidimensional groove (41) to be connected to the third longitudinal main groove (23); The left rib (12) is divided into a plurality of "V"-shaped second pattern blocks by a second combined groove, the first combined groove comprises a second multidimensional groove (42) and a second sipe (32), the left end of the second multidimensional groove (42) is connected to the right end of the second sipe (32) to form a "V" shape, the "V" shape angle is 105-115 degrees, the right end of the second multidimensional groove (42) is connected to the second longitudinal main groove (22), and the left end of the second sipe (32) is connected to the first longitudinal main groove (21); a curved multidimensional groove (52) is further provided inside the second pattern block, and the left end of the curved multidimensional groove (52) is connected to the first longitudinal main groove (21); The right rib (13) is divided into a plurality of third pattern blocks by a third combined groove arranged transversely and obliquely, the third combined groove comprising a third multidimensional groove (43) and a third knife groove (33), the bottom of the third multidimensional groove (43) is flush with the bottom of the third knife groove (33), the right end of the third multidimensional groove (43) is connected to the fourth longitudinal main groove (24), and the third knife groove (33) extends from the left end of the third multidimensional groove (43) to be connected to the third longitudinal main groove (23); The left shoulder rib (14) is divided into a plurality of fourth pattern blocks by a fourth combination groove arranged transversely and obliquely, the fourth combination groove comprising a fourth multidimensional groove (44) and a fourth groove (64), the fourth multidimensional groove (44) and the fourth groove (64) having the same width at their interfaces, the right end of the fourth multidimensional groove (44) being connected to the first longitudinal main groove (21), the fourth groove (64) extending from the left end of the fourth multidimensional groove (44) to the left edge of the left shoulder rib (14); a fourth knife groove (34) is further arranged inside the fourth pattern block, the fourth knife groove (34) extending from the left end of the upper fourth groove (64) to the lower fourth groove (64) at a vertical angle of 24-28 degrees; A longitudinal auxiliary groove (25) is arranged inside the right shoulder rib (15) near the left edge, and is divided into a plurality of fifth pattern blocks by a transversely arranged fifth sipe (35). A fifth combined groove is arranged inside the fifth pattern block. The fifth combined groove includes a fifth multidimensional groove (45) and a fifth groove (65). The fifth multidimensional groove (45) and the fifth groove (65) have the same width at their interfaces. The right end of the fourth multidimensional groove (44) passes through the longitudinal auxiliary groove (25) and is not connected to the fourth longitudinal main groove (24). The fifth groove (65) extends from the right end of the fifth multidimensional groove (45) to the right edge of the right shoulder rib (15). The pattern blocks are asymmetrically and staggeredly distributed on the left and right sides of the tread with the circumferential center axis of the tread; The multi-dimensional groove is provided with a stepped groove bottom of equal width and three-dimensional depth, the stepped groove bottom comprising a first groove bottom (01), a second groove bottom (02) and a third groove bottom (03), the depths of the groove bottoms from the tread being 2 mm, 4 mm and 6 mm respectively; the angle between the groove walls at both sides and the longitudinal direction is 1°-2°, the angle between the groove wall between the first groove bottom (01) and the second groove bottom (02) and the longitudinal direction is 1°-2°, and the angle between the groove wall between the second groove bottom (02) and the third groove bottom (03) and the longitudinal direction is 2°-3°; the intersection of the groove bottoms is rounded, the positive corner is rounded to R0.4-R0.6, and the negative corner is rounded to R0.1-R0.

3.

2. The multi-dimensional deep groove all-season tire according to claim 1, characterized in that: Two sixth sipes (51) are arranged transversely and obliquely inside the first pattern block, and both ends of the sipes are connected to adjacent main grooves; A seventh sipe (53) is vertically inclinedly arranged inside the third pattern block, and the seventh sipe (53) divides the third pattern block into two trapezoids by connecting the third multi-dimensional groove (43) and the third sipe (33); an eighth sipe (63) and a ninth sipe (73) are transversely inclinedly arranged inside the right trapezoidal pattern block, and a tenth sipe (83) and an eleventh sipe (93) are transversely inclinedly arranged inside the left trapezoidal pattern block; the tenth sipe (83), the eighth sipe (63), the eleventh sipe (93) and the ninth sipe (73) are sequentially staggered and arranged in parallel; A twelfth sipe (74) and a thirteenth sipe (84) are arranged transversely and obliquely inside the fourth pattern block, the twelfth sipe (74) and the thirteenth sipe (84) are located on the right side of the fourth sipe (34), the right end of the thirteenth sipe (84) is connected to the first longitudinal main groove (21), and the right end of the twelfth sipe (74) is connected to the first longitudinal main groove (21) via a trapezoidal groove (94); Two fourteenth sipes (75) are arranged transversely and obliquely inside the fifth pattern block. The two fourteenth sipes (75) are respectively located above and below the fifth pattern block. The left end of the fourteenth sipe (75) is connected to the longitudinal auxiliary groove (25), and the right end is located inside the pattern block.

3. The multi-dimensional deep groove all-season tire according to claim 2, characterized in that: In the first pattern block, the first multi-dimensional groove (41) and the first sipe (31) have the same inclination angle; The maximum angle between the first multi-dimensional groove (41) and the horizontal is 15-25 degrees, the groove width is 3-4 mm in a gradual manner, and the outer end gradually narrows toward the inner end; The first slit (31) has an angle of 15-25° with respect to the horizontal, a groove width of 0.6-1 mm, and a depth of 3-6 mm; The sixth sipe (51) has an angle of 15-25° with respect to the horizontal, a groove width of 0.6-1 mm, and a depth of 3-6 mm.

4. The multi-dimensional deep groove all-season tire according to claim 2, characterized in that: In the second pattern block, the second multi-dimensional groove (42) has an angle of 15-25° with the horizontal and a groove width of 3-4 mm; The second slit (32) has an angle of 40-60° with respect to the horizontal, a groove width of 0.6-1 mm, and a depth of 3-6 mm; The maximum angle between the curved multi-dimensional groove (52) and the horizontal is 55-70 degrees, the groove width is 3-4 mm in a gradual manner, and the outer end gradually narrows toward the inner end.

5. The multi-dimensional deep groove all-season tire according to claim 2, characterized in that: In the third pattern block, the third multidimensional groove (43) and the third sipe (33) have the same inclination angle; the third sipe (33) and the eighth sipe (63), the ninth sipe (73), the tenth sipe (83), and the eleventh sipe (93) are parallel to each other; The third multi-dimensional groove (43) has a maximum angle of 15-25° with respect to the horizontal, a groove width of 3-4 mm in a gradual manner, and gradually narrows from the outer end to the inner end; The seventh groove (53) has an angle of 50-60° with the horizontal, a groove width of 0.6-1 mm, and a depth of 3-6 mm; The third knife groove (33), the eighth knife groove (63), the ninth knife groove (73), the tenth knife groove (83), and the eleventh knife groove (93) have an angle of 15-25° with the horizontal, a groove width of 0.6-1 mm, and a depth of 3-6 mm.

6. The multi-dimensional deep groove all-season tire according to claim 2, characterized in that: In the fourth pattern block, the fourth multi-dimensional groove (44) has an angle of 5°-10° with the horizontal and a groove width of 3.5-5 mm; The fourth groove (64) has a maximum angle of 5°-10° with respect to the horizontal, a width of 3.5-5 mm, and a depth of 8-8.5 mm; The fourth groove (34) has a groove width of 0.6-1 mm and a depth of 2-6 mm; The twelfth knife groove (74) and the thirteenth knife groove (84) have an angle of 5-10° with the horizontal, a groove width of 0.6-1 mm, and a depth of 2-6 mm.

7. The multi-dimensional deep groove all-season tire according to claim 2, characterized in that: In the fifth pattern block, the fifth multi-dimensional groove (45) has an angle of 15-20° with the horizontal, a groove width of 3-4 mm in a gradual manner, and gradually narrows from the outer end to the inner end; The fifth groove (65) has an angle of 15-20° with respect to the horizontal, a width of 3-4 mm, and a depth of 8-8.5 mm; The fifth knife groove (35) and the fourteenth knife groove (75) have an angle of 15-20° with the horizontal, a groove width of 0.6-1 mm, and a depth of 2-6 mm.

8. The multi-dimensional deep groove all-season tire according to claim 2, characterized in that: The second knife groove (32), the sixth knife groove (51), the twelfth knife groove (74), and the fourteenth knife groove (75) are sawtooth-shaped.

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