CN209955671U - All-weather SUV radial tire - Google Patents

Abstract

An all-weather SUV radial tire comprises a first pattern part, a second pattern part, a third pattern part, a fourth pattern part and a fifth pattern part which are divided by four longitudinal straight grooves, and the braking performance, ice, snow and off-road traction of the all-weather SUV radial tire are effectively improved by adopting the sea-land ratio range of a braking area, the reinforcing design of a cutter groove and the like; under the condition of ensuring that the integral sea-land ratio is not changed, the total area of the pattern blocks in the braking area and the total area of the braking area are designed to be in the range of 69-71%, so that the braking performance can be improved under the condition of not influencing the snow performance; the design method is characterized in that different pattern parts adopt three different cutter groove patterns, different forms of reinforcing blocks are added on different cutter grooves to improve the rigidity of the pattern block, the angles and the occupation ratios of different reinforcing blocks are subjected to simulation, the optimal angles and the volume occupation ratios are obtained for different positions, the braking performance is improved to the maximum extent on the basis of effectively guaranteeing the uniformity of the ice and snow performance and abrasion, the design of chain-shaped patterns under shoulders is combined, the lateral traction performance in the snowfield is improved, the braking performance is effectively improved, and the driving safety is improved.

Description

All-weather SUV radial tire

Technical Field

The utility model belongs to the automobile tire field, concretely relates to all-weather SUV radial tire.

Background

The all-weather SUV radial tire can still keep better traction performance under the condition of light snow in winter and has stronger ground holding force on various road surfaces including field complex road surfaces compared with a summer tire aiming at various weather conditions and different road conditions. The all-weather SUV radial tire is popular with users because the tire in winter does not need to be replaced in winter or in light snow climate and various road surfaces can be used, the use cost of the users is reduced, and the use range is expanded.

In the traditional all-weather SUV radial tire pattern design, the traction performance in winter is considered, the snow traction performance is improved by generally adopting a method of adding the small grooves on the pattern blocks, but after the small grooves are added, the integral rigidity of the pattern blocks is reduced, the insufficient ground gripping force during braking is caused, and the braking performance is reduced.

At present, white carbon black is generally added in a tread formula in the industry to solve the problem, but the cost of the tire is increased due to the high price of the white carbon black, the wear resistance of the tire is reduced after the white carbon black is added, and the service life of the tire is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the not enough problem of traditional all-weather SUV radial tire brake performance, increase white carbon black and bring the problem that the wearability descends in avoiding the tread formulation in the current solution simultaneously, provide an all-weather SUV radial tire, through optimizing the decorative pattern design, improve brake performance and all-weather traction force.

The utility model discloses an adopt following technical scheme to realize: the utility model provides an all-weather SUV radial tire, is provided with four vertical grooves along tire circumference extension on its tread portion, four vertical grooves symmetrical distribute in tread portion the both sides of central axis and divide tread portion into first pattern portion, second pattern portion, third pattern portion, fourth pattern portion and fifth pattern portion from a left side to the right side in proper order:

defining an area surrounded by the outer edge of the second pattern part and the outer edge of the fourth pattern part as a central braking area, wherein the outer side is a side far away from the central axis, the total area of pattern blocks in the central braking area accounts for 69-71% of the total area of the central braking area, designing the optimal sea-land ratio of the SUV radial tire pattern in all seasons by providing the concept of the sea-land ratio of the central braking area and associating the sea-land ratio of the central braking area with the braking performance, and achieving the optimal braking performance on the basis of meeting the ice and snow performance;

the first pattern part and the fifth pattern part are provided with a first cutter groove, the second pattern part and the fourth pattern part are provided with a second cutter groove, the third pattern part is provided with a third cutter groove, and a first reinforcing block, a second reinforcing block and a third reinforcing block are respectively and correspondingly arranged in the first cutter groove, the second cutter groove and the third cutter groove, the height of the first reinforcing block, the second reinforcing block and the third reinforcing block is less than the depth of the cutter groove, and the volumes of the first reinforcing block, the second reinforcing block and the third reinforcing block respectively account for 18-20%, 14-17% and 13-14% of the volumes of the first cutter groove, the second cutter groove and the third cutter groove, the small cutter groove reinforcement design is added to the pattern block of the tire, so that the rigidity of the pattern block is improved aiming at different cutter groove patterns corresponding to different positions of the tire tread and corresponding to different forms of reinforcement blocks;

the first pattern part and the fifth pattern part are provided with closed transverse grooves, the closed transverse grooves extend inwards along the outer edges of the first pattern part and the fifth pattern part in an inclined mode and are not communicated with the longitudinal straight grooves on the outermost side, the closed transverse grooves are arranged along the edge of the first cutter groove, and the design of the shoulder closed transverse grooves can effectively improve the rigidity of the shoulder, improve the controllability and reduce the noise; the military thorn-shaped short grooves are arranged on the second pattern part and the fourth pattern part and comprise 1# short grooves located on the inner side and 2# short grooves located on the outer side, the 1# short grooves and the 2# short grooves are distributed on two sides of the second pattern part and two sides of the fourth pattern part, the shape of the 1# short grooves and the shape of the 2# short grooves are centrosymmetric, the 1# short grooves correspond to the closed transverse grooves, and the 2# short grooves equally divide pattern blocks formed by cutting adjacent 1# short grooves.

Furthermore, the distance between adjacent closed transverse grooves on the first pattern part and the fifth pattern part is called pattern pitch, the pattern pitch comprises three patterns of L2, L3 and L4, the three pattern pitches are randomly arranged along the circumferential direction of the tire to ensure that the rigidity of the tire is uniform, different numbers of first sipes are arranged according to different pattern pitches, the pattern blocks in the same pattern pitch are equally divided along the longitudinal direction of the pattern blocks, and the difference of the longitudinal distance between the adjacent pattern blocks divided by the first sipes is not more than 3mm, so that the rigidity transition uniformity of the adjacent pattern blocks is ensured, and uneven abrasion is avoided.

Further, the number of the first sipes on the pattern blocks in each pattern pitch is set to an upper limit value under the condition that the difference of the longitudinal distances between the adjacent pattern blocks divided by the first sipes is not more than 3 mm.

Furthermore, the first reinforcing block, the second reinforcing block, the third reinforcing block and the cutter groove are equal in width and are positioned in the center of the first cutter groove, the second cutter groove and the third cutter groove, the angles of the first reinforcing block, the second reinforcing block and the third reinforcing block are respectively alpha, beta and gamma, the alpha value is 14 degrees +/-0.5 degrees, the beta value is 8 degrees +/-0.5 degrees, the gamma value is 5 degrees +/-0.5 degrees, the angle refers to the included angle between the plane where the two side faces of the reinforcing block are located and the vertical plane, and the design of the angle can ensure that the braking performance is improved to the greatest extent on the basis of uniform ice and snow performance and abrasion.

Furthermore, the closed transverse grooves on the first pattern part are arranged in a staggered mode relative to the closed transverse grooves on the fifth pattern part, the opening directions of the closed transverse grooves on the first pattern part and the fifth pattern part are opposite, the staggered mode means that the closed transverse grooves on the two sides are not symmetrically arranged relative to the central axis, the opening directions are opposite, the closed transverse grooves on the first pattern part are opened downwards, and the closed transverse grooves on the fifth pattern part are opened upwards.

Furthermore, the No. 1 short grooves on the second pattern part are arranged in a staggered mode relative to the No. 1 short grooves on the fourth pattern part, the No. 1 short grooves on the second pattern part correspond to the closed transverse grooves on the first pattern part, and the No. 1 short grooves on the fourth pattern part correspond to the closed transverse grooves on the fifth pattern part.

Further, the third sipes arranged on the third pattern portion are uniformly distributed along two sides of the central axis of the tread portion, and the third sipes on the two sides of the central axis are arranged in a staggered mode relative to the central axis.

Furthermore, chain-shaped patterns are arranged on the outer sides of the first pattern part and the fifth pattern part and penetrate through the closed transverse grooves, so that the lateral traction performance in the snowfield is improved.

Further, the second knife groove and the third knife groove are in a great wall shape, the great wall shape is that a plurality of bending bulges bending to two sides of the knife groove are arranged along the length direction of the knife groove, the first knife groove is in a folding ruler shape, and the folding ruler shape is that a bending part is arranged at one end of the knife groove along the length direction of the knife groove.

Further, a central groove is arranged at the central axis of the tire tread along the circumferential direction of the tire, so that the effect of reducing noise is achieved.

Compared with the prior art, utility model's advantage lies in with positive effect:

the utility model discloses carry out ingenious design to the tire decorative pattern, adopt regional sea-land of braking than scope, sword groove reinforcement design etc. effectively improve all-weather SUV radial tire brake performance and ice and snow and cross-country traction nature:

(1) braking area sea-land ratio: in the design of tread pattern, the concept of sea-land ratio in braking area is proposed, and the sea-land ratio in this partial area has larger influence on braking performance. Under the condition of ensuring that the integral sea-land ratio is not changed, the total area of the pattern blocks in the braking area and the total area of the braking area are designed to be in the range of 69-71%, so that the braking performance can be improved under the condition of not influencing the snow performance;

(2) the knife grooves are in three types: the tire tread has different corresponding cutter groove patterns at different positions, the purpose of increasing the cutter grooves is mainly to cut water films or ice and snow on the water surface or the ice and snow road surface to improve the traction performance, but the cutter grooves can reduce the rigidity of the pattern blocks to reduce the braking performance, different forms of reinforcing blocks are added on different cutter grooves to improve the rigidity of the pattern blocks, the angles and the occupation ratios of different reinforcing blocks are simulated, the optimal angles and volume occupation ratios are obtained according to different positions, and the braking performance is improved to the maximum extent on the basis of effectively ensuring the uniformity of the ice and snow performance and the abrasion;

(3) pattern style: the design of four vertical straight grooves and 5 pattern parts is combined, the arrangement design of the troops-shaped short grooves and the closed transverse grooves and the specific distribution of the three cutter grooves are combined with the mutual matching between other pattern blocks, and the design of chain-shaped patterns under shoulders is combined, so that the lateral traction performance in the snowfield is improved, the braking performance is effectively improved, and the driving safety is improved.

Drawings

FIG. 1 is a schematic diagram of a developed pattern structure of a tread portion of an all-weather SUV radial tire according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a first knife slot according to an embodiment of the present invention;

FIG. 3 is a schematic sectional view of a second blade groove of the embodiment of the present invention;

FIG. 4 is a schematic sectional view of a third blade groove of the embodiment of the present invention;

wherein: a. a longitudinal groove and a straight groove; b. a central trench; c. a central braking region; d. shoulder line.

Detailed Description

In order to more clearly understand the above objects, features and advantages of the present invention, the following description of the present invention is made with reference to the accompanying drawings and embodiments, and it should be noted that the above, lower, inner and outer positional relationships in the present embodiment are based on the directions shown in fig. 1.

As shown in fig. 1, the utility model provides an all-weather SUV radial tire, be provided with four vertical furrows a on the tread portion of tire, four vertical furrows a symmetrical distribution are in tread portion center groove b's both sides, tread portion center groove b plays the effect of noise reduction, four vertical furrows a divide tread portion decorative patterns into firstdecorative pattern portion 1, seconddecorative pattern portion 2, thirddecorative pattern portion 3, fourth decorative pattern portion 4 and fifthdecorative pattern portion 5 from left to right in proper order, the region that the outside edge of seconddecorative pattern portion 2 and the outside edge of fourth decorative pattern portion 4 enclose is defined as central braking region c (namely the edge line that the vertical furrows of shoulder department are close to central axis one side is the boundary line, the region that left and right sides boundary line encloses is central braking region); the tire has the advantages that the footprint ratio of the central braking area is small and mainly concentrated in the central braking area when the tire runs at a high speed, so that the influence of the land-sea ratio of the central braking area on the braking performance, particularly the braking performance at a high speed, is large, the ice and snow performance is poor due to the overlarge land-sea ratio of the central braking area, the braking performance is poor due to the undersize of the central braking area, and meanwhile, the braking performance is also affected by the division of the central braking area;

thefirst pattern part 1 and thefifth pattern part 5 are provided with closedtransverse grooves 9, the closedtransverse grooves 9 extend inwards along the outer edges of thefirst pattern part 1 and thefifth pattern part 5 in an inclined mode and are not communicated with the longitudinal straight grooves a on the outermost side, the closedtransverse grooves 9 are arranged along the edge of thefirst knife slot 6, and the design of the shoulder closedtransverse grooves 9 can effectively improve the rigidity of the shoulder, improve the controllability and reduce the noise; the military thorn-shaped short grooves are arranged on thesecond pattern part 2 and the fourth pattern part 4 and comprise 1# short grooves located on the inner side and 2# short grooves located on the outer side, the 1# short grooves and the 2# short grooves are distributed on two sides of thesecond pattern part 2 and two sides of the fourth pattern part 4, the shape of the 1# short grooves and the shape of the 2# short grooves are centrosymmetric, the 1# short grooves correspond to the closedtransverse grooves 9, and the 2# short grooves are evenly distributed on pattern blocks formed by cutting the adjacent 1# short grooves.

With continued reference to fig. 1, thefirst pattern portion 1 and thefifth pattern portion 5 are provided with afirst sipe 6, thesecond sipe portion 2 and the fourth pattern portion 4 are provided with a second sipe 7, thethird sipe portion 3 is provided with athird sipe 8, the second sipe 7 and thethird sipe 8 are great wall-shaped sipes, thefirst sipe 6 is a folding ruler-shaped sipe, the great wall-shaped sipe has a plurality of bending protrusions bending to two sides of the sipe along the length direction of the sipe, the folding ruler-shaped sipe has a bending portion at one end of the sipe along the length direction of the sipe. Thefirst reinforcing block 61, thesecond reinforcing block 71 and the third reinforcing block 81 with the same width as the sipes are respectively and correspondingly arranged at the central positions in thefirst sipe 6, the second sipe 7 and thethird sipe 8, the height of thefirst reinforcing block 61, the second reinforcingblock 71 and the third reinforcing block 81 is less than the depth of the sipes (the depth of the three sipes is uniform), as shown in fig. 2-4, L1 is about 3mm, in the tread pattern design, a tiny sipe reinforcing design is added to the tire pattern block, the sipe patterns corresponding to different positions of the tire tread are different, different sipe patterns are mainly designed to cut a water film or ice and snow on a water surface or an ice and snow road surface to improve the traction performance, considering that the sipes can reduce the rigidity of the pattern block so as to reduce the braking performance, different forms of reinforcing blocks are respectively added in the middle of the sipes for different conditions, the rigidity of the pattern blocks is improved, the braking performance is further improved, and different forms of reinforcing blocks are adopted according to different positions of the pattern blocks.

According to researches, the size requirements of the reinforcing blocks at different positions are different, for example, improper increase easily causes uneven pressure, thereby causing uneven wear, and affects the service life of the tire, in the embodiment, the volumes of thefirst reinforcing block 61, thesecond reinforcing block 71 and the third reinforcing block 81 respectively account for 18% -20%, 14% -17%, 13% -14%, preferably 20%, 15% and 13% of the volumes of thefirst knife slot 6, the second knife slot 7 and thethird knife slot 8, respectively, the angles of thefirst reinforcing block 61, thesecond reinforcing block 71 and the third reinforcing block 81 are respectively alpha, beta and gamma, alpha is 14 ° ± 0.5 °, beta is 8 ° ± 0.5 ° and gamma is 5 ° ± 0.5 °, the corresponding preferred values of alpha, beta and gamma are respectively 14 °, 8 ° and 5 °, as shown in fig. 2-4, wherein the angle refers to the included angle between the plane where the two side faces of the reinforcing block and the vertical face, the design of the angle can ensure that the braking performance is improved to the maximum extent on the basis that the ice and snow performance and the abrasion are uniform, and the knife groove is prevented from being torn when the die is opened in a vulcanization mode.

In addition, the closedtransverse grooves 9 on thefirst pattern part 1 are arranged in a staggered manner relative to the closedtransverse grooves 9 on thefifth pattern part 5, and the opening directions of the closedtransverse grooves 9 on thefirst pattern part 1 and thefifth pattern part 5 are opposite, wherein the staggered arrangement means that the closed transverse grooves on the two sides are not symmetrically arranged relative to the central axis, and the opening directions are opposite (based on the direction shown in fig. 1) means that the closed transverse grooves on the first pattern part are opened downwards, and the closed transverse grooves on the fifth pattern part are opened upwards; the No. 1 short grooves on thesecond pattern part 2 are arranged in a staggered mode relative to the No. 1 short grooves on the fourth pattern part 4, the No. 1 short grooves on thesecond pattern part 2 correspond to the closedtransverse grooves 9 on thefirst pattern part 1, the No. 1 short grooves on the fourth pattern part 4 correspond to the closedtransverse grooves 9 on thefifth pattern part 5, the third sipes on thethird pattern part 3 are uniformly distributed along two sides of the central groove b of the tread part, and thethird sipes 8 on two sides of the central groove b are arranged in a staggered mode relative to the central groove b; in the scheme, chain-shaped patterns 10 are arranged on the outer sides of thefirst pattern part 1 and thefifth pattern part 5, and the chain-shaped patterns 10 penetrate through the closedtransverse grooves 9 to improve the lateral traction performance in the snowfield.

In the present embodiment, three pattern pitches are designed, for example, the space between adjacent closedlateral grooves 9 on thefirst pattern part 1 and thefifth pattern part 5 is referred to as a pattern pitch, the pattern pitch includes three types, i.e., L2, L3 and L4, L2 may be 20mm, L3 may be 30mm, and L4 may be 40mm, the three pattern pitches are randomly arranged along the circumferential direction of the tire, and include at least 65+ blocks when viewed in the longitudinal direction, and noise can be effectively reduced by the random and random arrangement; in order to ensure that the rigidity of the tire is uniform, different numbers offirst knife grooves 6 are arranged according to different pattern pitches, the pattern blocks in the same pattern pitch are equally divided along the longitudinal direction of the pattern blocks, the longitudinal distance difference between the adjacent pattern blocks divided by thefirst knife grooves 6 is not more than 3mm, namely the longitudinal width difference between L21, L31 and L41 is not more than 3mm, so that the rigidity transition uniformity of the adjacent pattern blocks is ensured, and uneven abrasion is avoided.

In addition, the number of first sipes in each block pitch is made to take the upper limit value (at most) while ensuring that the difference in longitudinal distance between adjacent blocks divided by thefirst sipes 6 is not more than 3mm, that is, the number of first sipes is made to take the most in the case of ensuring that the difference in longitudinal width is not more than 3mm, for example: the same requirements that the proposal (1) is provided with 1 first sipe in the L2 pattern pitch, 2 first sipes in the L3 pattern pitch and 3 first sipes in the L4 pattern pitch as the proposal (2) is provided with 2 first sipes in the L2 pattern pitch, 3 first sipes in the L3 pattern pitch and 4 first sipes in the L4 pattern pitch are satisfied, the proposal (2) is preferable, not only can effectively reduce noise, but also greatly improves the mobility of the snow traction machine.

The utility model discloses a regional sea land of braking is than scope, sword groove reinforcement design and other decorative pattern designs, effectively improves all-weather SUV radial tire brake performance and ice and snow and cross-country traction nature, has higher practical value and economic value.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims (10)

1. The utility model provides an all-weather SUV radial tire, is provided with four vertical grooves (a) that extend along tire circumference on its tread portion, four vertical grooves (a) symmetrical distribute in tread portion the both sides of central axis to divide first pattern portion (1), second pattern portion (2), third pattern portion (3), fourth pattern portion (4) and fifth pattern portion (5) into from a left side to the right side in proper order, its characterized in that:

defining a region enclosed by the outer edge of the second pattern part (2) and the outer edge of the fourth pattern part (4) as a central braking region (c), wherein the outer side is a side far away from the central axis, and the total area of the pattern blocks in the central braking region (c) accounts for 69-71% of the total area of the central braking region;

a first knife groove (6) is arranged on the first pattern part (1) and the fifth pattern part (5), a second knife groove (7) is arranged on the second pattern part (2) and the fourth pattern part (4), a third knife groove (8) is arranged on the third pattern part (3), and a first reinforcing block (61), a second reinforcing block (71) and a third reinforcing block (81) are respectively and correspondingly arranged in the first cutter groove (6), the second cutter groove (7) and the third cutter groove (8), the heights of the first reinforcing block (61), the second reinforcing block (71) and the third reinforcing block (81) are smaller than the depth of the cutter groove, and the volumes of the first reinforcing block (61), the second reinforcing block (71) and the third reinforcing block (81) respectively account for 18-20%, 14-17% and 13-14% of the volumes of the first cutter groove (6), the second cutter groove (7) and the third cutter groove (8);

the first pattern part (1) and the fifth pattern part (5) are provided with closed transverse grooves (9), and the closed transverse grooves (9) extend inwards along the outer edges of the first pattern part (1) and the fifth pattern part (5) in an inclined mode and are not communicated with the longitudinal straight grooves (a) on the outermost side; be provided with army thorn form short furrow on second flower pattern portion (2) and fourth flower pattern portion (4), army thorn form short furrow is including the 1# short furrow that is located the inboard and the 2# short furrow that is located the outside, and 1# short furrow and 2# short furrow distribute in the both sides of second flower pattern portion (2) and the both sides of fourth flower pattern portion (4), and the shape of 1# short furrow is central symmetry with the shape of 2# short furrow, wherein 1# short furrow with it is corresponding to seal horizontal furrow (9), and adjacent 1# short furrow cutting pattern block that forms is equallyd divide to the 2# short furrow.

2. The all-weather SUV radial tire according to claim 1, wherein: the space between adjacent closed transverse grooves (9) on the first pattern part (1) and the fifth pattern part (5) is called pattern pitch, the pattern pitch comprises three types of L2, L3 and L4, the three types of pattern pitches are randomly arranged along the circumferential direction of the tire, different numbers of first sipes (6) are arranged according to the difference of the pattern pitches, the pattern blocks in the same pattern pitch are equally divided along the longitudinal direction of the pattern blocks, and the difference of the longitudinal distance between the adjacent pattern blocks divided by the first sipes (6) is not more than 3 mm.

3. The all-weather SUV radial tire according to claim 2, wherein: the number of first sipes per block pitch is set to an upper limit value while ensuring that the difference in longitudinal distance between adjacent blocks divided by the first sipes (6) is not more than 3 mm.

4. The all-weather SUV radial tire according to claim 1, wherein: the first reinforcing block (61), the second reinforcing block (71) and the third reinforcing block (81) are as wide as the cutter grooves and are positioned at the central parts of the first cutter groove (6), the second cutter groove (7) and the third cutter groove (8), the angles of the first reinforcing block (61), the second reinforcing block (71) and the third reinforcing block (81) are respectively alpha, beta and gamma, the alpha value is 14 degrees +/-0.5 degrees, the beta value is 8 degrees +/-0.5 degrees, the gamma value is 5 degrees +/-0.5 degrees, and the angle is the included angle between the plane where the two side faces of the reinforcing block are positioned and the vertical plane.

5. The all-weather SUV radial tire according to claim 2, wherein: the closed transverse grooves (9) on the first pattern part (1) are arranged in a staggered mode relative to the closed transverse grooves (9) on the fifth pattern part (5), and the opening directions of the closed transverse grooves (9) on the first pattern part (1) and the fifth pattern part (5) are opposite.

6. The all-weather SUV radial tire of claim 5, wherein: the number 1 short grooves on the second pattern part (2) are arranged in a staggered mode relative to the number 1 short grooves on the fourth pattern part (4), the number 1 short grooves on the second pattern part (2) correspond to the sealed transverse grooves (9) on the first pattern part (1), and the number 1 short grooves on the fourth pattern part (4) correspond to the sealed transverse grooves (9) on the fifth pattern part (5).

7. The all-weather SUV radial tire according to claim 1, wherein: the third sipes (8) arranged on the third pattern part (3) are uniformly distributed along two sides of the central axis of the tread part, and the third sipes (8) on the two sides of the central axis are arranged in a staggered mode relative to the central axis.

8. The all-weather SUV radial tire according to claim 1, wherein: chain-shaped patterns (10) are arranged on the outer sides of the first pattern part (1) and the fifth pattern part (5), and the chain-shaped patterns (10) penetrate through the closed transverse grooves (9).

9. The all-weather SUV radial tire according to claim 1, wherein: the second cutter groove (7) and the third cutter groove (8) are in a great wall shape, the great wall shape is that a plurality of bending bulges bent to two sides of the cutter groove are arranged along the length direction of the cutter groove, the first cutter groove (6) is in a folding ruler shape, and the folding ruler shape is that a bending part is arranged at one end of the cutter groove along the length direction of the cutter groove.

10. The all-weather SUV radial tire according to claim 1, wherein: and a central groove (b) is arranged at the central axis of the tread along the circumferential direction of the tire.

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