High performance light truck snow tire

Abstract

The application relates to the field of tire technology and discloses a high-performance light truck snow tire, which comprises a center pattern part and a shoulder pattern part, and a longitudinal groove is arranged between the center pattern part and the shoulder pattern part; the center pattern part comprises a center groove and oblique grooves, the center groove is arranged in the middle of a tread and extends along the circumferential direction of the tread, a plurality of the oblique grooves are symmetrically arranged on the two sides of the center groove and extend to the longitudinal groove, the center groove, the oblique grooves and the longitudinal groove divide the center pattern part into a plurality of diamond-shaped center pattern blocks; the shoulder pattern part comprises transverse grooves and trapezoidal sound-absorbing plugs arranged between the transverse grooves, the transverse grooves extend along the width direction of the tread, and the transverse grooves and the longitudinal groove divide the shoulder pattern part into a plurality of shoulder pattern blocks. On the basis of ensuring the snow performance, the wet skid and noise performance of the light truck snow tire are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of tires, and more particularly to a high-performance light truck snow tire. BACKGROUND

[0002] In northern China and some parts of Europe and Russia, the winter weather is cold, and the snowfall is large, and the road surface is often covered with snow. In order to ensure driving safety, a suitable tire needs to be selected to cope with different weather and road conditions. According to research, many light truck owners still use summer tires in winter. The summer tires have reduced grip performance under low temperature conditions due to their inherent formula and pattern design, especially on icy and snowy roads, which poses a safety hazard to consumers. In recent years, with the development of the economy and the improvement of safety awareness, more and more light truck owners have consciously replaced the tires with light truck snow tires in winter to cope with the situation of road snow in winter and improve the safety of driving in winter. The so-called light truck snow tire is a light truck tire that can be used in low temperature environment (usually refers to the ambient temperature below 0 DEG) and can be driven normally on icy and snowy roads. The biggest difference between the light truck snow tire and the ordinary light truck tire is that it has greater grip on soft snow-covered road surface, prevents the vehicle from skidding out of control, and ensures the safety of the vehicle.

[0003] In recent years, vehicle owners have increasingly high requirements for vehicle quietness, comfort and handling, therefore, the light truck snow tire not only needs to meet the safety requirements, but also needs to pay enough attention to the quietness, comfort and handling requirements. SUMMARY

[0004] The present application provides a high-performance light truck snow tire to solve the problem of low quietness, comfort and poor handling of the light truck snow tire in the prior art. It comprises a center pattern part and a shoulder pattern part, the center pattern part is arranged in the middle of the tire tread, two shoulder pattern parts are symmetrically arranged on both sides of the center pattern part, and a longitudinal groove is arranged between the center pattern part and the shoulder pattern part.

[0005] The center pattern part comprises a center groove and an inclined groove, the center groove is arranged in the middle of the tread and extends along the circumferential direction of the tread, and a plurality of inclined grooves are symmetrically arranged on both sides of the center groove and extend towards the longitudinal groove, the center groove, the inclined groove and the longitudinal groove divide the center pattern part into a plurality of diamond-shaped center pattern blocks.

[0006] The shoulder pattern part comprises a transverse groove and a trapezoidal sound-absorbing plug arranged between the transverse groove, the transverse groove extends along the width direction of the tread, and the transverse groove and the longitudinal groove divide the shoulder pattern part into a plurality of shoulder pattern blocks.

[0007] Further, the center block and the shoulder block are provided with sipe steel sheets, the sipe steel sheets are zigzag 3D sipe steel sheets, the number of sipe steel sheets of the center block ranges from 2 to 10, and the number of sipe steel sheets of the shoulder block ranges from 1 to 5.

[0008] Further, a reinforcing rib is arranged between adjacent shoulder blocks, the width of the reinforcing rib is less than the width of the diagonal groove, and the height gradually decreases from the diagonal groove to the center groove.

[0009] The width of the reinforcing rib ranges from 2mm to 7mm, and the height ranges from 0mm to 5mm.

[0010] Further, the width H1 of the longitudinal groove, the width H2 of the center groove and the width H3 of the diagonal groove satisfy the following relationship: H1 = H2 ≥ 2H3.

[0011] The depth D1 of the longitudinal groove, the depth D2 of the center groove and the depth D3 of the diagonal groove satisfy the following relationship: D1 ≥ 1.5D2 > D3.

[0012] Further, the number of the trapezoidal sound-damping plugs is 5, which are connected with the shoulder blocks and staggered in the transverse groove, and the width H4 of the trapezoidal sound-damping plug and the width H5 of the transverse groove satisfy the following relationship: 1 / 2 > H4 / H5 > 1 / 6.

[0013] Further, the longitudinal groove is further provided with a sawtooth block on both sides, the sawtooth block is designed in a fan shape and connected with the center block.

[0014] The maximum width H6 of the sawtooth block and the width H1 of the longitudinal groove satisfy the following relationship: H6 ≤ 1 / 5H1.

[0015] The depth D4 of the sawtooth block and the depth D1 of the longitudinal groove satisfy the following relationship: D4 ≤ 1 / 2D1.

[0016] Further, the width of the longitudinal groove ranges from 5mm to 15mm, and the depth ranges from 6mm to 10mm.

[0017] Further, the width of the diagonal groove ranges from 2mm to 7mm, and the depth ranges from 4mm to 8mm, and the included angle of the diagonal groove with the horizontal line ranges from 20° to 80°.

[0018] Further, the width of the trapezoidal sound-damping plug ranges from 1mm to 6mm, and the height ranges from 1mm to 2.5mm.

[0019] Further, the width of the transverse groove ranges from 4mm to 12mm, the depth ranges from 2mm to 8mm, and the included angle with the horizontal line ranges from 20° to 80°.

[0020] The present application has the following advantages:

[0021] By applying the above technical solution, the present application can improve the rigidity of the pattern center and the tire grip by optimizing the pattern shape; the design of the wide groove with a large angle can make the tire drainage and snow removal more smooth, and improve the wet performance; the 3D solid knife groove steel sheet is adopted to balance the pattern rigidity, break the water film on the wet road surface, and improve the wet performance; the trapezoidal sound insulation plug design can reduce the noise generated by airflow convergence, improve the wet performance and noise performance of the light truck snow tire on the basis of ensuring the snow performance. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Fig. 1 The overall structure of a high-performance light truck snow tire according to an embodiment of the present application is shown in the figure;

[0024] Fig. 2 The structure of a reinforcing rib of a high-performance light truck snow tire according to an embodiment of the present application is shown in the figure.

[0025] In the figure: 1, longitudinal groove; 21, center groove; 22, diagonal groove; 23, center pattern block; 24, reinforcing rib; 25, sawtooth block; 31, transverse groove; 32, trapezoidal sound insulation plug; 33, shoulder pattern block; 4, knife groove steel sheet. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0027] In the description of the present application, it needs to be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0029] In the description of the present application, it needs to be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] The present application provides a kind of high-performance light truck snow tire, as shown in Figs. 1-2 As shown, it includes center pattern part and shoulder pattern part, the center pattern part is arranged in the middle of the tire tread, two the shoulder pattern part is symmetrically arranged in the center pattern part two sides, longitudinal groove 1 is opened between the center pattern part and the shoulder pattern part;The center pattern part includes center groove 21 and oblique groove 22, the center groove 21 is arranged in the middle of the tread and extends along the circumferential direction of the tread, a plurality of oblique grooves 22 are symmetrically arranged on the two sides of the center groove 21 and extend to the longitudinal groove 1, the center groove 21, the oblique groove 22 and the longitudinal groove 1 divide the center pattern part into a plurality of diamond-shaped center pattern blocks 23;The shoulder pattern part includes transverse groove 31 and trapezoidal sound plug 32 arranged between the transverse groove 31, the transverse groove 31 extends along the width direction of the tread, and the transverse groove 31 and the longitudinal groove 1 divide the shoulder pattern part into a plurality of shoulder pattern blocks 33.

[0031] In this embodiment, through the design of the center pattern block 23 and the diagonal groove 22, the rigidity of the center pattern block is balanced, the ground contact area is increased, and the handling performance is improved. By arranging the trapezoidal noise reduction plug 32 in the transverse groove 31, the pattern noise generated by the airflow convergence is reduced, and the noise performance of the tire is improved.

[0032] In some embodiments of the present application, the center pattern block 23 and the shoulder pattern block 33 are provided with a knife slot steel sheet 4, the knife slot steel sheet 4 is a zigzag 3D solid knife slot steel sheet 4, the number of knife slot steel sheets 4 of the center pattern block 23 ranges from 2 to 10, and the number of knife slot steel sheets 4 of the shoulder pattern block 33 ranges from 1 to 5.

[0033] In this embodiment, the knife slot steel sheet 4 is arranged in a zigzag structure on the center pattern block 23 and the shoulder pattern block 33, and by using a 3D solid knife slot steel sheet 4, the pattern rigidity can be effectively balanced, the pattern is softer, the pattern contact area is increased, the handling performance of the vehicle during turning can be ensured, the water film on the wet road surface is broken, and the wet performance of the tire is improved.

[0034] In some embodiments of the present application, a reinforcing rib 24 is arranged between adjacent shoulder pattern blocks 33, the width of the reinforcing rib 24 is less than the width of the diagonal groove 22, and the height gradually decreases from the diagonal groove 22 to the center groove 21; the width of the reinforcing rib 24 ranges from 2mm to 7mm, and the height ranges from 0mm to 5mm.

[0035] In this embodiment, the reinforcing rib 24 is arranged at the intersection of the diagonal groove 22 and the center groove 21 and extends along the diagonal groove 22, the pattern block is connected by the reinforcing rib 24, the pattern rigidity is enhanced, the snow performance of the tire is improved, the height of the reinforcing rib 24 gradually decreases to zero from the diagonal groove 22 to the center groove 21, so that the tire can drain water and snow more smoothly on the wet road surface, and the wet performance of the tire is improved.

[0036] In some embodiments of the present application, the width H1 of the longitudinal groove 1, the width H2 of the center groove 21 and the width H3 of the diagonal groove 22 satisfy the following relationship: H1=H2≥2H3; the depth D1 of the longitudinal groove 1, the depth D2 of the center groove 21 and the depth D3 of the diagonal groove 22 satisfy the following relationship: D1≥1.5D2>D3.

[0037] In this embodiment, the width H1 of the longitudinal groove 1 is the same as the width H2 of the center groove 21, and the depth D1 of the longitudinal groove 1, the depth D2 of the center groove 21 and the depth D3 of the diagonal groove 22 gradually decrease, when H1=H2≥2H3 and D1≥1.5D2>D3, the tire can drain water and snow more smoothly, and the water and snow drainage performance of the tire is maximized.

[0038] In some embodiments of the present application, the number of the trapezoidal sound-damping plugs 32 connected to the shoulder blocks 33 and arranged alternately in the transverse grooves 31 is 5, and the width H4 of the trapezoidal sound-damping plugs 32 and the width H5 of the transverse grooves 31 satisfy the following relationship: 1 / 2>H4 / H5>1 / 6.

[0039] In the present embodiment, when 1 / 2>H4 / H5>1 / 6, the trapezoidal sound-damping plugs 32 can disturb the airflow in the transverse grooves 31 to the greatest extent, reduce the pattern noise caused by the airflow convergence, and effectively improve the noise performance of the tire.

[0040] In some embodiments of the present application, the longitudinal grooves 1 are further provided with sawtooth blocks 25 on both sides, the sawtooth blocks 25 are connected to the center blocks 23 and are designed in a fan shape, the maximum width H6 of the sawtooth blocks 25 and the width H1 of the longitudinal grooves 1 satisfy the following relationship: H6≤1 / 5H1, and the depth D4 of the sawtooth blocks 25 and the depth D1 of the longitudinal grooves 1 satisfy the following relationship: D4≤1 / 2D1.

[0041] In the present embodiment, the sawtooth blocks 25 connected to the center blocks 23 on both sides of the longitudinal grooves 1 can improve the tread friction, when H6≤1 / 5H1 and D4≤1 / 2D1, the tire can have excellent grip and braking force on snow and wet road surfaces, and the fan-shaped sawtooth blocks 25 can effectively reduce the impact of the sawtooth blocks 25 on the snow and water drainage performance.

[0042] In some embodiments of the present application, the width of the longitudinal grooves 1 ranges from 5mm to 15mm, and the depth ranges from 6mm to 10mm.

[0043] In some embodiments of the present application, the width of the diagonal grooves 22 ranges from 2mm to 7mm, the depth ranges from 4mm to 8mm, and the angle between the diagonal grooves 22 and the horizontal line ranges from 20° to 80°.

[0044] In the present embodiment, the angle between the diagonal grooves 22 and the horizontal line is preferably 20°, and the diagonal grooves 22 can make the snow and water drainage of the tire more smooth and improve the wet performance.

[0045] In some embodiments of the present application, the width of the trapezoidal sound-damping plugs 32 ranges from 1mm to 6mm, and the height ranges from 1mm to 2.5mm.

[0046] In some embodiments of the present application, the width of the transverse grooves 31 ranges from 4mm to 12mm, the depth ranges from 2mm to 8mm, and the angle between the transverse grooves 31 and the horizontal line ranges from 20° to 80°.

[0047] In this embodiment, the angle between the transverse groove 31 and the horizontal line is preferably 20°.

[0048] By applying the above technical scheme, the present application comprises a center pattern part and shoulder pattern parts, the center pattern part is arranged in the middle of the tire tread, two shoulder pattern parts are symmetrically arranged on both sides of the center pattern part, and a longitudinal groove 1 is arranged between the center pattern part and the shoulder pattern part; the center pattern part comprises a center groove 21 and an inclined groove 22, the center groove 21 is arranged in the middle of the tread and extends along the circumferential direction of the tread, and a plurality of inclined grooves 22 are symmetrically arranged on both sides of the center groove 21 and extend to the longitudinal groove 1, the center groove 21, the inclined groove 22 and the longitudinal groove 1 divide the center pattern part into a plurality of diamond-shaped center pattern blocks 23; the shoulder pattern part comprises a transverse groove 31 and a trapezoidal sound-absorbing plug 32 arranged between the transverse grooves 31, the transverse grooves 31 extend along the width direction of the tread, and the transverse grooves 31 and the longitudinal grooves 1 divide the shoulder pattern part into a plurality of shoulder pattern blocks 33. The present application improves the wet and noise performance of the light truck snow tire on the basis of ensuring the snow performance.

[0049] The above is only one embodiment of the present application, but cannot limit the scope of the present application, any structural changes made according to the present application, as long as the essence of the present application is not lost, should be considered to fall within the scope of the present application and be restricted. The skilled person in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the platform and the related description described above can refer to the corresponding process in the foregoing platform embodiment, which will not be repeated here.

[0050] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not drive the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A high performance light truck snow tire characterized in that, The center pattern part and the shoulder pattern part, the center pattern part is arranged in the middle of the tire tread, two shoulder pattern parts are symmetrically arranged on both sides of the center pattern part, and longitudinal grooves (1) are arranged between the center pattern part and the shoulder pattern part; The center pattern part includes a center groove (21) and an inclined groove (22), the center groove (21) is arranged in the middle of the tread and extends along the circumferential direction of the tread, a plurality of inclined grooves (22) are symmetrically arranged on both sides of the center groove (21) and extend to the longitudinal groove (1), the center groove (21), the inclined groove (22) and the longitudinal groove (1) divide the center pattern part into a plurality of diamond-shaped center pattern blocks (23); The shoulder pattern part includes a transverse groove (31) and a trapezoidal sound insulation plug (32) arranged between the transverse groove (31), the transverse groove (31) extends along the width direction of the tread, and the transverse groove (31) and the longitudinal groove (1) divide the shoulder pattern part into a plurality of shoulder pattern blocks (33); The both sides of the longitudinal groove (1) are also provided with a sawtooth block (25), the sawtooth block (25) is designed in a fan shape and is connected with the center pattern block (23).

2. The high performance light truck snow tire of claim 1, wherein, The center pattern block (23) and the shoulder pattern block (33) are provided with a knife groove steel sheet (4), the knife groove steel sheet (4) is a zigzag type 3D solid knife groove steel sheet, the number of the knife groove steel sheet (4) of the center pattern block (23) ranges from 2 to 10, and the number of the knife groove steel sheet (4) of the shoulder pattern block (33) ranges from 1 to 5.

3. The high performance light truck snow tire of claim 1, wherein, A reinforcing rib (24) is arranged between adjacent shoulder pattern blocks (33), the width of the reinforcing rib (24) is smaller than the width of the inclined groove (22), and the height gradually decreases from the inclined groove (22) to the center groove (21); The width of the reinforcing rib (24) ranges from 2mm to 7mm, and the height ranges from 0mm to 5mm.

4. The high performance light truck snow tire of claim 1, wherein, The width H1 of the longitudinal groove (1), the width H2 of the center groove (21) and the width H3 of the inclined groove (22) satisfy the following relationship: H1=H2≥2H3; The depth D1 of the longitudinal groove (1), the depth D2 of the center groove (21) and the depth D3 of the inclined groove (22) satisfy the following relationship: D1≥1.5D2>D3.

5. The high performance light truck snow tire of claim 1, wherein, The number of the trapezoidal sound insulation plug (32) is 5, which is connected with the shoulder pattern block (33) and staggered in the transverse groove (31), and the width H4 of the trapezoidal sound insulation plug (32) and the width H5 of the transverse groove (31) satisfy the following relationship: l / 2>H4 / H5>1 / 6.

6. The high performance light truck snow tire of claim 1, wherein, The maximum width H6 of the sawtooth block (25) and the width H1 of the longitudinal groove (1) satisfy the following relationship: H6≤1 / 5H1; The depth D4 of the sawtooth block (25) and the depth D1 of the longitudinal groove (1) satisfy the following relationship: D4≤1 / 2D1.

7. The high performance light truck snow tire of claim 1, wherein, The width of the longitudinal groove (1) ranges from 5mm to 15mm, and the depth ranges from 6mm to 10mm.

8. The high performance light truck snow tire of claim 1, wherein, The width of the oblique groove (22) ranges from 2mm to 7mm, the depth ranges from 4mm to 8mm, and the angle with the horizontal line ranges from 20° to 80°.

9. The high performance light truck snow tire of claim 8, wherein, The width of the trapezoidal sound-damping plug (32) ranges from 1mm to 6mm, and the height ranges from 1mm to 2.5mm.

10. The high performance light truck snow tire of claim 8, wherein, The width of the transverse groove (31) ranges from 4mm to 12mm, the depth ranges from 2mm to 8mm, and the angle with the horizontal line ranges from 20° to 80°.

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