Light truck tire pattern and tire

Abstract

The utility model provides a light truck tire pattern and a tire, and belongs to the technical field of tires, the light truck tire pattern comprises a plurality of longitudinal grooves arranged along the circumferential direction of a tread and pattern blocks divided by the longitudinal grooves, the pattern blocks comprise shoulder pattern blocks positioned on tire shoulders on two sides and middle pattern blocks positioned between the shoulder pattern blocks, a middle transverse groove is formed between the middle pattern blocks adjacent in the circumferential direction and is of an inverted N-shaped structure, and the two ends of the middle transverse groove extend to the longitudinal grooves respectively; a linear middle thin groove is formed in the middle of the middle pattern block in the circumferential direction; and each middle pattern block is divided into two V-shaped pattern blocks which are centrosymmetric by the longitudinal groove, the middle transverse groove and the middle thin groove. The light truck tire pattern disclosed by the utility model has the characteristics of improving the controllability of a tire and the impact resistance of coping with complex road surfaces, enhancing the traction force and the wet skid resistance of the tire, improving the heat dissipation and the durability of the tire, reducing the noise of the tire and improving the comfort.

Description

Technical Field

[0001] The utility model belongs to the technical field of tires, and particularly relates to a pattern and a tire for light truck tires. Background Art

[0002] With the rapid development of the automotive industry and highways, the classification of tire uses has become more refined and specialized, and the performance requirements for automotive tires have also become higher. Compared with passenger car tires, light truck tires need to carry a certain weight. Due to the large load and the complex and harsh road surfaces used, higher requirements are put forward for the performance of the tires.

[0003] Currently, in the design of existing heavy truck tire patterns, a large pattern block structure is usually adopted, which emphasizes the tire's grip and traction. However, tires with this structure have a large amount of heat generation during driving and extremely poor comfort, and are not suitable for light truck vehicles.

[0004] Therefore, on the premise of ensuring the grip and traction performance, improving the heat dissipation and comfort of the tire, and developing a tire suitable for light truck vehicles are urgent problems to be solved in this field. Summary of the Utility Model

[0005] The details of one or more embodiments of the present utility model are set forth in the following drawings and description to make other features, objects, and advantages of the present application more concise and understandable.

[0006] The present utility model provides a pattern and a tire for light truck tires, which solve the above technical problems of large heat generation and poor comfort existing in existing heavy truck tires, and have the characteristics of improving the handling performance of the tire and the anti-impact ability for complex road surfaces, enhancing the tire's traction and anti-hydroplaning performance, improving the heat dissipation and durability of the tire, reducing tire noise, and enhancing comfort.

[0007] On the one hand, the present utility model discloses a pattern for a light truck tire, which includes a plurality of longitudinal grooves arranged circumferentially along the tread and pattern blocks divided by the longitudinal grooves. The pattern blocks include shoulder pattern blocks located at both tire shoulders and middle pattern blocks located between the shoulder pattern blocks. Among them, middle transverse grooves are provided between circumferentially adjacent middle pattern blocks. The middle transverse grooves are in an inverted N-shaped structure, and both ends thereof extend to the longitudinal grooves respectively; a linear middle fine groove is arranged circumferentially in the middle of the middle pattern blocks; the longitudinal grooves, middle transverse grooves, and middle fine grooves divide each middle pattern block into two V-shaped structure pattern blocks that are centrosymmetric.

[0008] In some of these embodiments, the longitudinal grooves are linear grooves, the depth of the longitudinal grooves is 7-8 mm, and the width of the longitudinal grooves in the middle is less than the width of the longitudinal grooves on both sides.

[0009] In some of these embodiments, the longitudinal grooves include a central longitudinal groove circumferentially arranged along the center of the tread, and side longitudinal grooves located on both sides of the central longitudinal groove; wherein, central transverse small grooves are arranged in a staggered manner on both sides of the central longitudinal groove, and side transverse small grooves are correspondingly arranged on both sides of the side longitudinal grooves.

[0010] In some of these embodiments, middle steel sheets are arranged on the middle tread blocks. The middle steel sheets are located on both sides of the middle fine grooves. One end of the middle steel sheet extends to the middle fine groove, and the other end is a closed structure.

[0011] In some of these embodiments, a plurality of shoulder transverse grooves are arranged at intervals on the shoulder tread blocks, and one end of the shoulder transverse grooves extends to the tire shoulder.

[0012] In some of these embodiments, the width of the shoulder transverse grooves accounts for 45%-55% of the width of the shoulder tread blocks; the radian of the shoulder transverse grooves is 125°-135°, and the length is 21-25 mm.

[0013] In some of these embodiments, inclined shoulder steel sheets are arranged inside the shoulder tread blocks. The width of the shoulder steel sheets is 0.8-1.2 mm, and the depth is 3-4 mm.

[0014] In some of these embodiments, the shoulder steel sheets include a first shoulder steel sheet, a second shoulder steel sheet, and a third shoulder steel sheet. Among them, one end of the first shoulder steel sheet extends to the longitudinal groove; one end of the second shoulder steel sheet extends to the tire shoulder, and the other end is connected to the first shoulder steel sheet. The second shoulder steel sheet and the first shoulder steel sheet form an L-shaped structure; one end of the third shoulder steel sheet is connected to the middle of the first shoulder steel sheet, and the other end is connected to the shoulder transverse groove. The third shoulder steel sheet, the first shoulder steel sheet, and the second shoulder steel sheet jointly form an inverted F-shaped structure.

[0015] In some of these embodiments, the tread blocks located on both sides of the center of the tread are arranged in a staggered manner, and the staggering amount is 3-4 mm.

[0016] On the other hand, the present utility model also discloses a tire, on which the above-mentioned light truck tire tread pattern is arranged.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] (1) The multiple longitudinal grooves arranged circumferentially along the tread of the light truck tire tread pattern of the present utility model and the tread blocks divided by the longitudinal grooves, by setting through tread blocks and grooves, while enhancing the traction of the tire, can cut through the water film on a wet road surface and improve the grip performance of the tire; the middle tread blocks are designed with continuous longitudinal patterns. Middle fine grooves are arranged on the middle tread blocks, and middle transverse grooves are arranged between circumferentially adjacent middle tread blocks, improving the high-speed performance and drainage performance of the tire and ensuring the safety of driving in rainy days.

[0019] (2) In the middle tread blocks of the light truck tire tread pattern of the present utility model, middle steel sheets are provided, which cooperate with the circumferential middle fine grooves to disperse the hardness of the tread blocks and improve the grip performance of the tire during driving.

[0020] (3) In the shoulder tread blocks of the light truck tire tread pattern of the present utility model, semi-closed shoulder transverse grooves are provided. While enhancing the traction of the tire, it ensures high drainage performance of the tire and improves the wet skid resistance of the tire; shoulder steel sheets are provided on the shoulder tread blocks, which improve the stability, durability and load-carrying capacity of the shoulder tread blocks, enhance the steering performance of the tire during driving, and at the same time provide good heat dissipation performance and durability for the tire.

[0021] (4) The tread blocks of the light truck tire tread pattern located on both sides of the center of the tread surface of the present utility model are arranged in a staggered manner, which can disperse the impact energy of the tread blocks on the ground, reduce the tread block noise and improve the comfort. Description of the Drawings

[0022] The drawings described herein are used to provide a further understanding of the present utility model and form a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0023] Figure 1 It is a schematic structural diagram of the light truck tire tread pattern provided by the embodiment of the present utility model;

[0024] In the drawings: 1, central longitudinal groove; 2, side longitudinal groove; 3, middle tread block; 4, shoulder tread block; 51, first central transverse small groove; 52, second central transverse small groove; 61, first side transverse small groove; 62, second side transverse small groove; 7, middle transverse groove; 8, middle fine groove; 9, middle steel sheet; 91, first middle steel sheet; 92, second middle steel sheet; 10, shoulder transverse groove; 11, shoulder steel sheet; 111, first shoulder steel sheet; 112, second shoulder steel sheet; 113, third shoulder steel sheet. Detailed Embodiments

[0025] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "lateral", "longitudinal", "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. The terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include one or more of such features. The term "longitudinal" refers to the direction in which the tire rolls; the term "lateral" refers to the direction perpendicular to the mid-plane of the tire.

[0027] An embodiment of the present utility model provides a light truck tire tread pattern and a tire, which are of a central symmetry tread pattern structure. Figure 1 It is a schematic structural diagram of the light truck tire tread pattern according to the embodiment of the present utility model. Refer to Figure 1 As shown, the light truck tire tread pattern includes: a plurality of longitudinal grooves arranged circumferentially along the tread and tread blocks divided by the longitudinal grooves. The tread blocks include shoulder tread blocks 4 located on both sides of the tire shoulders and middle tread blocks 3 located between the shoulder tread blocks 4. Among them, middle transverse grooves 7 are provided between circumferentially adjacent middle tread blocks 3. The middle transverse grooves 7 are in an inverted N-shaped structure, and both ends thereof extend to the longitudinal grooves respectively; a straight middle fine groove 8 is arranged circumferentially in the middle of the middle tread block 3; the longitudinal grooves, middle transverse grooves 7 and middle fine grooves 8 divide each middle tread block 3 into two V-shaped structure tread blocks that are centrosymmetric. By providing through tread blocks and grooves, the present utility model is beneficial to improving the drainage performance and handling stability of the tire; the middle tread block 3 adopts a continuous longitudinal pattern, which is a continuous pattern design and can ensure the best straight-line driving stability of the tire. Preferably, the width of the middle tread block is 65-67 mm.

[0028] In the embodiment of the utility model, the longitudinal grooves of the tread pattern of the light truck tire are straight grooves. The depth of the longitudinal grooves is 7-8 mm, and the width of the longitudinal grooves in the middle is less than that of the longitudinal grooves on both sides. The design of the longitudinal grooves can cut through the water film on the wet road surface while enhancing the traction of the tire, improving the grip performance of the tire. In a preferred embodiment, the longitudinal grooves include a central longitudinal groove 1 arranged circumferentially along the center of the tread, and side longitudinal grooves 2 located on both sides of the central longitudinal groove 1; a first central transverse small groove 51 and a second central transverse small groove 52 are arranged staggeredly on both sides of the central longitudinal groove 1; both the first central transverse small groove and the second central transverse small groove are in a triangular structure; a first side transverse small groove 61 and a second side transverse small groove 62 are correspondingly arranged on both sides of the side longitudinal groove 2.

[0029] In the embodiment of the utility model, the two ends of the middle transverse groove 7 of the tread pattern of the light truck tire extend to the central transverse small groove and the side transverse small groove respectively; the width of the middle transverse groove 7 is 10 mm, and the depth is 3-7 mm; the width of the middle fine groove 8 is 3 mm, and the depth is 3-4 mm; the middle transverse groove 7 is connected and cooperated with the middle fine groove 8 and the longitudinal groove, improving the high-speed performance and drainage performance of the tire, and ensuring the safety of driving in rainy days.

[0030] In the embodiment of the utility model, a middle steel sheet 9 is further arranged on the middle tread block 3 of the tread pattern of the light truck tire. The middle steel sheet 9 is located on both sides of the middle fine groove 8. One end of the middle steel sheet 9 extends to the middle fine groove 8, and the other end is a closed structure; the width of the middle steel sheet 9 is 4 mm. The middle steel sheet 9 includes a first middle steel sheet 91 and a second middle steel sheet 92, and the first middle steel sheet 91 and the second middle steel sheet 92 are on the same straight line. The middle steel sheet 9 arranged on the middle tread block 3 cooperates with the circumferential middle fine groove 8, playing a role in dispersing the hardness of the tread block and improving the grip performance of the tire during driving.

[0031] In the embodiment of the utility model, semi-closed shoulder transverse grooves 10 are arranged at intervals on the shoulder tread block 4 of the tread pattern of the light truck tire. The width of the shoulder transverse grooves 10 accounts for 45%-55% of the width of the shoulder tread block 4; one end of the shoulder transverse grooves 10 extends to the tire shoulder; the radian of the shoulder transverse grooves 10 is 125°-135°, and the length is 21-25 mm. The shoulder transverse grooves 10 are connected with the side longitudinal grooves 2, enhancing the traction of the tire while ensuring high drainage performance of the tire and improving the anti-wet-slip performance of the tire.

[0032] In the shoulder tread blocks 4 of the light truck tire tread pattern according to the embodiment of the present utility model, inclined shoulder steel sheets 11 are provided inside. The width of the shoulder steel sheets 11 is 0.8 - 1.2 mm, and the depth is 3 - 4 mm. The shoulder steel sheets 11 include a first shoulder steel sheet 111, a second shoulder steel sheet 112, and a third shoulder steel sheet 113. Among them, one end of the first shoulder steel sheet 111 extends to the edge longitudinal groove 2; one end of the second shoulder steel sheet 112 extends to the tire shoulder, and the other end is connected to the first shoulder steel sheet 111. The second shoulder steel sheet 112 and the first shoulder steel sheet 111 form an L-shaped structure; one end of the third shoulder steel sheet 113 is connected to the middle of the first shoulder steel sheet 111, and the other end is connected to the shoulder transverse groove 10. The third shoulder steel sheet 113, the first shoulder steel sheet 111, and the second shoulder steel sheet 112 together form an inverted F structure. In a preferred embodiment, the first shoulder steel sheet 111 forms an angle of 45 degrees with the tire circumference; the arc length of the second shoulder steel sheet 112 is 27.8 - 28.2 mm, and the radius is 56.5 mm. By providing semi-closed shoulder steel sheets on the shoulder tread blocks 4 of the tire tread pattern of the present utility model, the rigidity of the tread blocks is reduced, the comfort performance is improved, the ground contact area is more uniform during the steering and normal driving of the tire, the driving is more stable, the wear is more uniform, the stability, durability, and load-carrying capacity of the shoulder tread blocks are improved, the steering performance during tire driving is enhanced, and at the same time, good heat dissipation performance and durability performance are provided for the tire.

[0033] The tread blocks on both sides of the center of the tread of the present utility model are arranged in a staggered manner, which can disperse the impact energy of the tread blocks on the ground, reduce the tread block noise, and improve the comfort. In a preferred embodiment, the staggering amount is 3 - 4 mm.

[0034] The above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them; although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: still can modify the specific implementation manners of the present utility model or perform equivalent replacements for some technical features; without departing from the spirit of the technical solutions of the present utility model, they should all be covered within the scope of the technical solutions claimed by the present utility model.

Claims

1. Light load tire pattern, characterized by: It includes a plurality of longitudinal grooves arranged along the circumference of the tread and pattern blocks divided by the longitudinal grooves, the pattern blocks include shoulder pattern blocks located at the shoulders on both sides and middle pattern blocks located between the shoulder pattern blocks, wherein a middle transverse groove is arranged between the circumferentially adjacent middle pattern blocks, the middle transverse groove is in an inverted N-shaped structure, and its two ends respectively extend to the longitudinal grooves; a straight middle fine groove is arranged in the middle of the middle pattern block along the circumference; the longitudinal grooves, the middle transverse grooves and the middle fine grooves divide each middle pattern block into two V-shaped structure pattern blocks with central symmetry.

2. The light load tire pattern according to claim 1, characterized in that: The longitudinal grooves are linear grooves, the depth of the longitudinal grooves is 7-8 mm, and the width of the longitudinal grooves located in the middle is smaller than the width of the longitudinal grooves located on both sides.

3. The light load tire pattern according to claim 1, characterized in that: The longitudinal grooves include a central longitudinal groove arranged along the circumference of the center of the tread, and side longitudinal grooves located on both sides of the central longitudinal groove; wherein, central transverse small grooves are staggered on both sides of the central longitudinal groove, and side transverse small grooves are correspondingly arranged on both sides of the side longitudinal groove.

4. The light load tire pattern according to claim 1, characterized in that: A middle steel sheet is arranged on the middle pattern block, and the middle steel sheet is located on both sides of the middle fine groove, one end of the middle steel sheet extends to the middle fine groove, and the other end is a closed structure.

5. The light load tire pattern according to claim 1, characterized in that: A plurality of shoulder transverse grooves are arranged at intervals on the shoulder pattern block, and one end of the shoulder transverse groove extends to the tire shoulder.

6. The light load tire pattern according to claim 5, characterized in that: The width of the shoulder transverse groove accounts for 45%-55% of the width of the shoulder pattern block; the curvature of the shoulder transverse groove is 125°-135°, and the length is 21-25mm.

7. The light load tire pattern according to claim 5, characterized in that: An inclined shoulder steel sheet is arranged inside the shoulder pattern block, and the width of the shoulder steel sheet is 0.8-1.2 mm and the depth is 3-4 mm.

8. The light load tire pattern according to claim 7, characterized in that: The shoulder steel sheet includes a first shoulder steel sheet, a second shoulder steel sheet and a third shoulder steel sheet, wherein one end of the first shoulder steel sheet extends to the longitudinal groove; one end of the second shoulder steel sheet extends to the tire shoulder, and the other end is connected to the first shoulder steel sheet, and the second shoulder steel sheet and the first shoulder steel sheet form an L-shaped structure; one end of the third shoulder steel sheet is connected to the middle part of the first shoulder steel sheet, and the other end is connected to the shoulder transverse groove, and the third shoulder steel sheet, the first shoulder steel sheet and the second shoulder steel sheet together form an inverted F structure.

9. The light load tire pattern according to claim 1, characterized in that: The pattern blocks on both sides of the tread center are staggered with a staggered amount of 3-4mm.

10. A tire, characterized in that: The tire tread is provided with the light load tire pattern as claimed in any one of claims 1 to 9.

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