Light truck tire

Abstract

The utility model provides a light truck tire, which belongs to the technical field of truck tires and is characterized in that the tread of the light truck tire is divided into a left tire shoulder pattern block, a left middle pattern block, a central pattern block, a right middle pattern block and a right tire shoulder pattern block by four longitudinal grooves extending along the circumferential direction of the tread; the first transverse ditches, the second transverse ditches and the third transverse ditches are arranged in a staggered manner; the first transverse groove and the longitudinal grooves on the two sides are in arc transition, and the third transverse groove and the longitudinal grooves on the two sides are in arc transition. The first linear part, the second linear part and the third linear part limit the second transverse groove to be Z-shaped; and a first reinforcing rib covering the first linear part, part of the second linear part and part of the third linear part is arranged in the second transverse groove. The light truck tire solves the technical problems that an existing light truck tire cannot give consideration to the abrasion resistance and the wet and slippery road braking performance and is high in rolling resistance, and has the advantages of giving consideration to the abrasion resistance and the wet and slippery road braking performance and being low in rolling resistance.

Description

Technical Field

[0001] This utility model belongs to the field of truck tire technology, and in particular relates to a light truck tire. Background Technology

[0002] With the rapid development of the automotive industry, users' demands for vehicle performance are becoming increasingly diversified. As the only component of a vehicle in contact with the road surface, tires have seen a significant increase in functionality, specialization, and segmentation. Especially in the commercial light vehicle sector (such as vans and light trucks), tires need to meet multiple requirements, including high load capacity, adaptability to complex road conditions, and fuel economy.

[0003] However, light truck tires in the current market often have the following pain points: 1. Conflict between wear resistance and grip: Traditional tread design is difficult to balance long-mileage wear and braking performance on wet and slippery roads; 2. High rolling resistance: This leads to reduced fuel efficiency and increased operating costs; 3. Insufficient adaptability to unpaved roads: Light trucks often need to deal with mixed road conditions such as urban-rural fringe areas and construction sites, and ordinary tread patterns are prone to slipping or being cut. Utility Model Content

[0004] Details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects and advantages of the present application more readily apparent.

[0005] This utility model proposes a light truck tire that solves the technical problems of existing light truck tires, which cannot balance wear resistance and braking performance on wet roads, as well as high rolling resistance. It has the characteristics of balancing wear resistance and braking performance on wet roads, and low rolling resistance.

[0006] This utility model discloses a light truck tire. The tread of the light truck tire is divided into a left shoulder tread block, a left middle tread block, a central tread block, a right middle tread block, and a right shoulder tread block by four longitudinal grooves extending circumferentially along the tread.

[0007] The longitudinal channels on both sides of the left middle patterned block are connected by the first transverse groove on the left middle patterned block; the longitudinal channels on both sides of the central patterned block are connected by the second transverse groove on the central patterned block; the longitudinal channels on both sides of the right middle patterned block are connected by the third transverse groove on the right middle patterned block; the first transverse groove, the second transverse groove, and the third transverse groove are arranged alternately.

[0008] The first transverse ditch and the two side longitudinal ditches, as well as the third transverse ditch and the two side longitudinal ditches, are connected by a circular arc.

[0009] The second transverse groove includes a first straight section, and a second straight section and a third straight section connected to both ends of the first straight section. The first straight section, the second straight section, and the third straight section define the second transverse groove as Z-shaped. The second transverse groove is provided with a first reinforcing rib that covers the first straight section, a portion of the second straight section, and a portion of the third straight section.

[0010] In some embodiments, the angle between the first and third transverse grooves and the direction of travel is 100°-122°.

[0011] In some embodiments, the depth of the second transverse groove is 8-10 mm, and the thickness of the first reinforcing rib is 4-5 mm.

[0012] In some embodiments, the depth of the longitudinal trench is 8.5-10.0 mm, the width of the trench top is 8-9 mm, and the inclination angle of the trench wall is 80°-85°.

[0013] In some embodiments, the longitudinal grooves located between the left shoulder tread block and the left middle tread block, and between the right shoulder tread block and the right middle tread block, are alternately connected with sipes.

[0014] In some embodiments, both the left and right shoulder tread blocks are provided with knife-shaped transverse grooves that communicate with the longitudinal grooves.

[0015] In some embodiments, the width of the knife-shaped transverse groove increases from the longitudinal groove toward the shoulder.

[0016] In some embodiments, the width of the knife-shaped transverse groove from the longitudinal groove toward the shoulder transitions from 5 mm to 10 mm.

[0017] In some embodiments, the left and right shoulder tread blocks are provided with two connected T-shaped semi-open grooves.

[0018] In some embodiments, steel plates are provided on the left shoulder tread block, the left middle tread block, the central tread block, the right middle tread block, and the right shoulder tread block.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This utility model provides a light truck tire. The first and third transverse grooves are connected to the two longitudinal grooves by an arc transition, which connects the four longitudinal grooves in an interlaced manner. While enhancing traction, it also takes into account drainage and grip, ensuring high drainage performance, improving wet performance, and guaranteeing comprehensive performance for use on all-weather roads. The second transverse groove is Z-shaped and is defined by a first reinforcing rib that covers the first straight section, part of the second straight section, and part of the third straight section. This increases the strength and rigidity of the tread blocks, maintains good shape and stability of the tread pattern when the tire rolls, reduces energy loss, lowers rolling resistance, improves fuel economy, and also improves the overall load-bearing capacity and crown strength of the tire, enhancing grip and wear resistance. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of a light truck tire tread pattern provided in an embodiment of the present utility model;

[0023] Figure 2 for Figure 1 Cross-sectional view along the AA direction;

[0024] Figure 3 for Figure 1 Cross-sectional view along the N-N1 direction;

[0025] Figure 4 for Figure 1 Cross-sectional view along the BB direction;

[0026] In the above figures: 101, left shoulder tread block; 102, left middle tread block; 103, central tread block; 104, right middle tread block; 105, right shoulder tread block; 2, longitudinal groove; 3, first transverse groove; 4, second transverse groove; 401, first straight section; 402, second straight section; 403, third straight section; 5, third transverse groove; 6, first reinforcing rib; 7, sipe; 8, sipe-shaped transverse groove; 9, T-shaped semi-open groove. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described and explained below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments provided by this utility model without inventive effort are within the scope of protection of this utility model.

[0028] This utility model embodiment provides a light truck tire. Figure 1 This is a structural schematic diagram of a light truck tire according to an embodiment of the present invention. (Reference) Figure 1 As shown, the tread of this light truck tire is divided into a left shoulder tread block 101, a left center tread block 102, a center tread block 103, a right center tread block 104, and a right shoulder tread block 105 by four longitudinal grooves extending circumferentially along the tread. This light truck tire adopts a symmetrical tread pattern design, using four unequal pitch circumferential pitches (L, M, S, F) arranged alternately (see...). Figure 1 The unequal pitch design breaks the regular pattern of the tread, thus avoiding resonance caused by the periodic contact between the tread and the ground during tire rolling, thereby reducing noise. Additionally, a uniform tread distribution also helps ensure smoother contact between the tire and the ground, reducing vibration and noise.

[0029] A light truck tire has longitudinal grooves 2 on both sides of the left middle tread block 102 connected by a first transverse groove 3 on the left middle tread block 102; longitudinal grooves 2 on both sides of the central tread block 103 connected by a second transverse groove 4 on the central tread block 103; and longitudinal grooves 2 on both sides of the right middle tread block 104 connected by a third transverse groove 5 on the right middle tread block 104. The first transverse groove 3, the second transverse groove 4, and the third transverse groove 5 are arranged alternately. The first transverse groove 3 and the two side longitudinal grooves 2, as well as the third transverse groove 5 and the two side longitudinal grooves 2, are connected by arc transitions. In some embodiments, the angles between the first transverse groove 3 and the third transverse groove 5 and the direction of travel are 100°-122°. The transverse grooves (first transverse groove 3 and third transverse groove 5) are connected to the four longitudinal grooves 2 at an angle of 100°-122° and with a rounded transition. This enhances traction while taking into account drainage and grip, ensuring high drainage performance of the tire, improving wet performance, and guaranteeing comprehensive performance for use on all-weather roads.

[0030] A light truck tire includes a second lateral groove 4 comprising a first straight portion 401, and a second straight portion 402 and a third straight portion 403 connected to both ends of the first straight portion 401. The first straight portion 401, the second straight portion 402, and the third straight portion 403 define the second lateral groove 4 as Z-shaped. A first reinforcing rib 6 is provided within the second lateral groove 4, covering the first straight portion 401 and portions of the second straight portion 402 and third straight portion 403. In some embodiments, the depth of the second lateral groove 4 is 8-10 mm, and the thickness of the first reinforcing rib 6 is 4-5 mm. The central tread block 103 adopts a Z-shaped tread pattern with a 0.8 mm wide transverse steel strip design, such as... Figure 2As shown, the Z-shaped tread pattern adopts a design with varying depths of 5-10mm. The central 5mm depth features a first reinforcing rib design, which increases the strength and rigidity of the tread blocks. This ensures that the tread pattern maintains good shape and stability when the tire is rolling, reducing energy loss, lowering rolling resistance, improving fuel economy, and also enhancing the overall load-bearing capacity and crown strength of the tire, as well as increasing grip and wear resistance.

[0031] In some embodiments, the longitudinal groove 2 has a depth of 8.5-10.0 mm, a top width of 8-9 mm, and a wall inclination angle of 80°-85°, which can provide the tire with better high-speed guiding performance.

[0032] In some embodiments, the longitudinal grooves 2 located between the left shoulder tread block 101 and the left middle tread block 102, and between the right shoulder tread block 105 and the right middle tread block 104, are alternately connected with sipes 7 on both sides. The inner transverse tread pattern intersects with the shoulder transverse tread pattern, penetrating the longitudinal grooves 2. A small through-plate design is added in the middle. The smooth transverse grooves combined with the small sipes 7 pattern improve grip and water drainage. Figure 3 As shown, the acute angles of the pattern are rounded and beveled to increase the stability and tear resistance of the pattern blocks.

[0033] In some embodiments, both the left shoulder tread block 101 and the right shoulder tread block 105 have knife-shaped transverse grooves 8 communicating with the longitudinal groove 2. In some embodiments, the width of the knife-shaped transverse groove 8 increases from the longitudinal groove 2 towards the shoulder. Further, the width of the knife-shaped transverse groove 8 transitions from 5mm to 10mm from the longitudinal groove 2 towards the shoulder. Figure 4 As shown, the shoulder features a transverse, open-pattern tread design with a tread width transitioning from 5mm to 10mm, effectively improving the tire's water drainage and wet grip performance. The shoulder's transverse grooves incorporate reinforcing ribs to increase tread rigidity. During vehicle acceleration, braking, and steering, these ribs help the tread blocks better adhere to the ground, increasing the contact area and friction, thereby enhancing tire grip and ensuring good vehicle handling and stability. Furthermore, they reduce tread block wear during driving, effectively extending tire life and lowering operating costs.

[0034] In some embodiments, the left shoulder tread block 101 and the right shoulder tread block 105 are provided with two connected T-shaped semi-open grooves 9. The two T-shaped semi-open grooves 9 on the shoulder tread blocks are supplemented with a fine steel sheet design. This groove accelerates heat dissipation from the shoulder, giving the tire good heat dissipation performance and thus improving tire durability. The inner side of each groove adopts a semi-closed design, supplemented with a fine steel sheet. This steel sheet evenly divides the shoulder tread block, ensuring uniform contact force on the shoulder. This ensures that each shoulder tread block has sufficient rigidity while also possessing a certain degree of flexibility, resulting in suitable shoulder rigidity, improved tire steering performance, wear resistance, and enhanced driving stability on wet roads.

[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A light truck tire, characterized in that, The tread of the light truck tire is divided into a left shoulder tread block, a left middle tread block, a central tread block, a right middle tread block, and a right shoulder tread block by four longitudinal grooves extending circumferentially along the tread. The longitudinal channels on both sides of the left middle patterned block are connected by the first transverse groove on the left middle patterned block; the longitudinal channels on both sides of the central patterned block are connected by the second transverse groove on the central patterned block; the longitudinal channels on both sides of the right middle patterned block are connected by the third transverse groove on the right middle patterned block; the first transverse groove, the second transverse groove, and the third transverse groove are arranged alternately. The first transverse groove is connected to the two side longitudinal grooves, and the third transverse groove is connected to the two side longitudinal grooves by a circular arc transition; The second transverse groove includes a first straight section, and a second straight section and a third straight section connected to both ends of the first straight section. The first straight section, the second straight section, and the third straight section define the second transverse groove as Z-shaped. The second transverse groove is provided with a first reinforcing rib that covers the first straight section, a portion of the second straight section, and a portion of the third straight section.

2. The light truck tire according to claim 1, characterized in that, The angle between the first and third transverse grooves and the direction of travel is 100°-122°.

3. The light truck tire according to claim 1, characterized in that, The second transverse groove has a depth of 8-10 mm, and the first reinforcing rib has a thickness of 4-5 mm.

4. The light truck tire according to claim 1, characterized in that, The longitudinal trench has a depth of 8.5-10.0 mm, a top width of 8-9 mm, and a wall inclination angle of 80°-85°.

5. The light truck tire according to claim 1, characterized in that, The longitudinal grooves located between the left shoulder tread block and the left middle tread block, and between the right shoulder tread block and the right middle tread block, are alternately connected with sipes.

6. The light truck tire according to claim 1, characterized in that, Both the left and right shoulder tread blocks are provided with knife-shaped transverse grooves that communicate with the longitudinal groove.

7. The light truck tire according to claim 6, characterized in that, The width of the knife-shaped transverse groove increases from the longitudinal groove toward the tire shoulder.

8. The light truck tire according to claim 7, characterized in that, The width of the knife-shaped transverse groove transitions from 5 mm to 10 mm from the longitudinal groove toward the tire shoulder.

9. The light truck tire according to claim 1, characterized in that, The left and right shoulder tread blocks are provided with two connected T-shaped semi-open grooves.

10. The light truck tire according to claim 1, characterized in that, Steel plates are provided on the left shoulder tread block, the left middle tread block, the central tread block, the right middle tread block, and the right shoulder tread block.

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