Tire

Abstract

The utility model provides a tire, which comprises a tread, a plurality of pattern block groups and a plurality of tread blocks, and the plurality of pattern block groups are sequentially arranged along the circumferential direction of the tread; each pattern block group comprises a plurality of pattern units, the pattern units are arranged at intervals in the circumferential direction of the tread, the circumferential direction of the tread is taken as the width direction, and the width of each pattern unit is set according to a preset proportion; wherein the width ratio of every two adjacent pattern units ranges from 1.1 to 1.14; each pattern unit comprises a plurality of longitudinal grooves, the longitudinal grooves are arranged at intervals in the axial direction of the tread, and each longitudinal groove extends in the circumferential direction of the tread. The problem that the controllability of the tire in the prior art cannot give consideration to different driving environments is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of tire pattern design, and particularly relates to a tire. BACKGROUND

[0002] With the change of global climate and the acceleration of urbanization, more and more consumers need to use vehicles in different geographical environments and climate conditions in daily life. This demand is particularly evident in areas with variable climate and distinct seasons. For people living at the junction of cities and mountains, they need tires that not only perform well on flat urban roads but also have the ability to travel on snowy or icy roads in winter. In this context, traditional HT (Highway Terrain) pattern tires, which are designed primarily for dry and wet roads, often cannot meet these diverse usage needs.

[0003] Current market HT pattern tires, when designed, mainly consider the driving performance on urban roads, such as comfort, fuel economy, and wear resistance. However, as more and more vehicles need to cross snow-covered mountain roads or cope with extreme weather in winter, the lack of grip, long braking distance, and instability when turning of this type of tire in icy conditions gradually expose problems. These defects not only affect the driving experience but also pose a serious threat to driving safety.

[0004] Traditional snow tires or winter tires perform well on icy roads, but they do not perform well on dry or wet urban roads. This type of tire usually uses softer rubber materials and deeper tread designs to enhance grip on icy roads, but it wears faster in normal temperature environments, and the increased tire noise due to deep tread affects the comfort and fuel economy of the vehicle. In addition, consumers change different types of tires in different seasons, increasing the cost and inconvenience of using the vehicle. For example, sudden snowfall and cold waves also pose new requirements for the adaptability of tires. Especially in high-cold mountainous areas and long-term low-temperature environments, the cold resistance and grip of tire materials become key factors in testing the driving safety of vehicles. Traditional HT tires, due to the hardening of rubber materials and the decrease in elasticity at low temperatures, reduce the contact area between the tire and the ground, reducing grip and seriously affecting vehicle handling. Therefore, there is an increasing demand in the market for an all-purpose HT tire that can balance the performance of urban roads and snow travel ability. SUMMARY

[0005] The main purpose of the utility model is to provide a tire to solve the problem that the maneuverability of the tire in the prior art cannot balance different driving environments.

[0006] In order to achieve the above object, according to one aspect of the present application, a tire is provided, comprising a tread, the tire comprising: a plurality of block groups, the plurality of block groups being sequentially arranged along a circumferential direction of the tread; each block group comprising: a plurality of pattern units, each pattern unit being arranged at intervals along the circumferential direction of the tread, taking the circumferential direction of the tread as a width direction, the width of each pattern unit being arranged in a predetermined proportion; wherein the width ratio between two adjacent pattern units is 1.1-1.14; each pattern unit comprising a plurality of longitudinal grooves, the plurality of longitudinal grooves being arranged at intervals along an axial direction of the tread, each longitudinal groove extending along a circumferential direction of the tread.

[0007] Further, the plurality of pattern units comprise: a first pattern unit, a second pattern unit, a third pattern unit, a fourth pattern unit and a fifth pattern unit sequentially arranged along the circumferential direction of the tread; wherein the width of the first pattern unit is Y1, the width of the fifth pattern unit is Y5, Y5:Y1=1.5-1.6.

[0008] Further, the plurality of pattern units comprise: a first pattern unit, a second pattern unit, a third pattern unit, a fourth pattern unit and a fifth pattern unit sequentially arranged along the circumferential direction of the tread; the width of the first pattern unit is Y1, the width of the second pattern unit is Y2, the width of the third pattern unit is Y3, the width of the fourth pattern unit is Y4, and the width of the fifth pattern unit is Y5.

[0009] Y1:Y2:Y3:Y4:Y5=1.00:1.14:1.20:1.32:1.4.

[0010] Further, each pattern unit comprises: a first block, a second block and a third block, sequentially arranged at intervals from the center of the tread to the axial end direction of the tread; the plurality of longitudinal grooves comprise: a first longitudinal groove extending along the circumferential direction of the tread, the first longitudinal groove being arranged between the first block and the second block; a second longitudinal groove extending along the circumferential direction of the tread, the second longitudinal groove being arranged between the second block and the third block.

[0011] Further, the area of the ground contact surface of the first block is S1, the area of the ground contact surface of the second block is S2, S1:S2=5:4.

[0012] Further, taking the axial direction of the tread as a length direction, the width of the ground contact surface of each pattern unit is S3, the width of the ground contact surface of the third block is S4, and the width of the ground contact surface of the second block is S5.

[0013] S5; S4: S3=0.358-0.394;

[0014] S5: S3 = 0.436-0.447.

[0015] Further, the first pattern block is provided with a first reinforcing member embedded in the first pattern block; the first reinforcing member has a first included angle between an extension direction and an axis of the tread.

[0016] Further, the second pattern block includes a first end face and a second end face oppositely arranged along the axis of the tread, and the second pattern block is provided with a second reinforcing member and a third reinforcing member; the second reinforcing member extends from the first end face to a middle portion of the second pattern block; and the third reinforcing member extends from the first end face to the second end face.

[0017] Further, the third pattern block includes a third end face and a fourth end face oppositely arranged along the axis of the tread, and the third pattern block is provided with a fourth reinforcing member and a fifth reinforcing member; the fourth reinforcing member extends from the third end face to a middle portion of the third pattern block; and the fifth reinforcing member extends from the third end face to the fourth end face.

[0018] Further, the first longitudinal groove includes a first groove sidewall face and a first groove bottom face, and an included angle between the first groove sidewall face and a vertical plane is A, A = 5-10°; and the second longitudinal groove includes a second groove sidewall face and a second groove bottom face, and an included angle between the second groove sidewall face and a vertical plane is B, B = 10-15°.

[0019] The technical scheme of the utility model, the tire includes a tread, a plurality of pattern block groups are sequentially arranged along the circumferential direction of the tread; each pattern block group includes: a plurality of pattern units, each pattern unit is arranged at intervals along the circumferential direction of the tread, taking the circumferential direction of the tread as a width direction, and the width of each pattern unit is arranged in a predetermined proportion; wherein the width ratio between two adjacent pattern units is 1.1-1.14; each pattern unit includes a plurality of longitudinal grooves, and the plurality of longitudinal grooves are arranged at intervals along the axis of the tread, and each longitudinal groove extends along the circumferential direction of the tread. Such arrangement not only reduces the noise of the tire during driving, but also helps to improve the drainage efficiency of the tire, enhance the traction on snow, and reduce the risk of skidding. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the utility model, and together with the exemplary embodiments of the utility model and their description, serve to explain the utility model, and do not constitute an improper limitation on the utility model. In the drawings:

[0021] Figure 1 Fig. 1 shows a structure schematic view of an embodiment of a tread of a tire according to the utility model;

[0022] Figure 2A structure diagram of a pattern unit of a tire according to the present application is shown.

[0023] Figure 3 A structure diagram of a first pattern block of a tire according to the present application is shown.

[0024] Figure 4 A structure diagram of a second pattern block of a tire according to the present application is shown.

[0025] Figure 5 A structure diagram of a third pattern block of a tire according to the present application is shown.

[0026] Figure 6 A structure diagram of a first longitudinal groove of a tire according to the present application is shown.

[0027] Figure 7 A structure diagram of a second longitudinal groove of a tire according to the present application is shown.

[0028] Figure 8 A structure diagram of a transverse groove of a tire according to the present application is shown.

[0029] Among them, the above-mentioned drawings include the following reference signs:

[0030] 100, tread; 200, pattern block group; 210, pattern unit; 211, first pattern unit; 212, second pattern unit; 213, third pattern unit; 214, fourth pattern unit; 215, fifth pattern unit; 2101, first pattern block; 2102, second pattern block; 2103, third pattern block; 2104, first longitudinal groove; 2105, second longitudinal groove; 21021, first end face; 21022, second end face; 21031, third end face; 21032, fourth end face; 221, first reinforcing member; 222, second reinforcing member; 223, third reinforcing member; 224, fourth reinforcing member; 225, fifth reinforcing member; 21041, first groove side wall face; 21042, first groove bottom face; 21051, second groove side wall face; 21052, second groove bottom face; 230, transverse groove. DETAILED DESCRIPTION

[0031] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with embodiments.

[0032] As mentioned in the background, although the existing snow tire or winter tire performs well on icy and snowy road, it performs not so well on dry or wet urban road. Such tire usually uses softer rubber material and deeper tread design to enhance the grip on icy and snowy road, but it wears faster at normal temperature and the tire noise increases due to the deep tread, which affects the comfort and fuel economy of the vehicle. In addition, consumers change different types of tires in different seasons, which increases the cost and inconvenience of using the vehicle. In order to meet this growing market demand, a tire design that can provide good driving performance on urban roads and ensure safe driving on icy and snowy mountain roads has become a necessary development direction. Especially for users living in areas with frequent snowfall in winter and large terrain, they urgently need an all-terrain tire that can maintain excellent performance throughout the year. Therefore, in order to solve the above technical problems, the tire provided by the present application sets a plurality of block groups 200 on the tread 100, each block group 200 includes a plurality of pattern units 210, each pattern unit 210 is arranged in the circumferential direction of the tread 100, the circumferential direction of the tread 100 is the width direction, and the width of each pattern unit 210 is set in a predetermined proportion; wherein the width ratio between the two adjacent pattern units 210 is 1.1-1.14; it can effectively disrupt the vibration frequency of the gas in the pattern groove, reduce the pattern noise, improve the noise comfort in driving, and meet the user's all-terrain use requirements; each pattern unit 210 includes a plurality of longitudinal grooves, a plurality of longitudinal grooves are arranged in the axial direction of the tread 100, and each longitudinal groove extends in the circumferential direction of the tread 100, which not only helps to improve the drainage efficiency of the tire, but also enhances the traction on snow and reduces the risk of skidding. Ensure stability and durability under various road conditions.

[0033] Please refer to Figures 1 to 8 The present application provides a tire, comprising a tread 100, the tire comprising: a plurality of block groups 200, the plurality of block groups 200 being arranged in the circumferential direction of the tread 100; each block group 200 comprising: a plurality of pattern units 210, each pattern unit 210 being arranged in the circumferential direction of the tread 100, the circumferential direction of the tread 100 being the width direction, and the width of each pattern unit 210 being set in a predetermined proportion; wherein the width ratio between the two adjacent pattern units 210 is 1.1-1.14; each pattern unit 210 comprises a plurality of longitudinal grooves, a plurality of longitudinal grooves are arranged in the axial direction of the tread 100, and each longitudinal groove extends in the circumferential direction of the tread 100.

[0034] The tire provided herein includes a tread 100 and a plurality of pattern block groups 200 arranged sequentially along the circumferential direction of the tread 100. Each pattern block group 200 includes a plurality of pattern units 210, each pattern unit 210 being spaced apart along the circumferential direction of the tread 100, with the width of each pattern unit 210 being arranged at a predetermined ratio, with the circumferential direction of the tread 100 being the width direction. The width ratio between two adjacent pattern units 210 is 1.1 to 1.14. Each pattern unit 210 includes a plurality of longitudinal grooves, each of which is spaced apart along the axis of the tread 100 and extends along the circumferential direction of the tread 100. This arrangement not only reduces tire noise during driving, but also helps improve the tire's drainage efficiency, enhances traction on snow, and reduces the risk of slipping.

[0035] Specifically, the plurality of pattern units 210 include: a first pattern unit 211, a second pattern unit 212, a third pattern unit 213, a fourth pattern unit 214, and a fifth pattern unit 215, sequentially arranged along the circumferential direction of the tread 100. The first pattern unit 211 has a width Y1, and the fifth pattern unit 215 has a width Y5, with Y5:Y1 = 1.5-1.6. By optimizing the width ratio, this tire significantly reduces rolling resistance while maintaining excellent grip. This layout ensures even pressure distribution during rolling, reduces localized wear, and further reduces tire noise.

[0036] like Figure 1 As shown, the plurality of pattern elements 210 include: a first pattern element 211, a second pattern element 212, a third pattern element 213, a fourth pattern element 214, and a fifth pattern element 215, sequentially arranged along the circumferential direction of the tread 100. The first pattern element 211 has a width of Y1, the second pattern element 212 has a width of Y2, the third pattern element 213 has a width of Y3, the fourth pattern element 214 has a width of Y4, and the fifth pattern element 215 has a width of Y5. The ratio of Y1:Y2:Y3:Y4:Y5 = 1.00:1.14:1.20:1.32:1.4. On the tread 100, the plurality of pattern elements 210 are arranged in a circular ring along the circumferential direction of the tread 100, including a plurality of pitches of varying numbers and sizes. Based on simulation results, these five pitches are arranged in a disordered and chaotic manner along the circumference of the tire. This arrangement can effectively disrupt the vibration frequency of the gas in the pattern grooves, reduce pattern noise, improve noise comfort during driving, and meet the user's needs for use in all road conditions.

[0037] In specific implementation, each pattern unit 210 includes: a first pattern block 2101; a second pattern block 2102 and a third pattern block 2103, sequentially and spaced apart from each other in the direction from the center of the tread 100 to the axial end of the tread 100; a plurality of longitudinal grooves including: a first longitudinal groove 2104 extending along the circumferential direction of the tread 100, the first longitudinal groove 2104 being arranged between the first pattern block 2101 and the second pattern block 2102; and a second longitudinal groove 2105 extending along the circumferential direction of the tread 100, the second longitudinal groove 2105 being arranged between the second pattern block 2102 and the third pattern block 2103. Through such a spaced arrangement, the tire can better absorb road vibrations when driving on bumpy roads, reducing vehicle bumps and improving driving comfort and safety. The design of the longitudinal grooves enables the tire to quickly drain water and maintain good grip in high summer temperatures and tropical climates, while effectively dissipating heat and preventing tire overheating.

[0038] The area of the ground contact surface of the first pattern block 2101 is S1, the area of the ground contact surface of the second pattern block 2102 is S2, and S1:S2=5:4. By optimizing the area ratio of the ground contact surface, the tire can more evenly distribute pressure on mountain roads and congested urban road sections, reducing local tire wear while providing stronger grip, ensuring that drivers can maintain good handling and driving safety in complex road conditions.

[0039] In the axial direction of the tread 100, the width of the ground contact surface of each pattern unit 210 is S3, the width of the ground contact surface of the third pattern block 2103 is S4, and the width of the ground contact surface of the second pattern block 2102 is S5.

[0040] S4:S3=0.358-0.394;

[0041] S5:S3=0.436-0.447.

[0042] By proportionally designing the width of the ground contact surface, the tire can provide excellent stability and handling at high speeds, reducing rolling resistance and fuel consumption,

[0043] In the process of specific implementation, as shown in Figures 3 to 5 The first pattern block 2101 is provided with a first reinforcing member 221, and the first reinforcing member 221 is embedded in the first pattern block 2101; the first reinforcing member 221 has a first included angle between the extension direction and the axis of the tread 100. The first reinforcing member 221 is preferably a first steel sheet, and the tortuous design of the first steel sheet significantly improves the shoulder rigidity of the tire and the grip on the ground, especially in normal road conditions and snow road conditions, which improves safety and enhances handling performance.

[0044] Further, the second pattern block 2102 includes a first end surface 21021 and a second end surface 21022 oppositely arranged along the axial direction of the tread 100, and the second pattern block 2102 is provided with a second reinforcing member 222 and a third reinforcing member 223; the second reinforcing member 222 extends from the first end surface 21021 towards the middle part of the second pattern block 2102; and the third reinforcing member 223 extends from the first end surface 21021 to the second end surface 21022. The second reinforcing member 222 is preferably a second steel sheet, and the third reinforcing member 223 is preferably a third steel sheet, and the second steel sheet and the third steel sheet divide the second pattern block 2102 into 2-4 small areas, so that the pattern design is more excellent in appearance effect than ordinary tires.

[0045] Further, the third pattern block 2103 includes a third end surface 21031 and a fourth end surface 21032 oppositely arranged along the axial direction of the tread 100, and the third pattern block 2103 is provided with a fourth reinforcing member 224 and a fifth reinforcing member 225; the fourth reinforcing member 224 extends from the third end surface 21031 towards the middle part of the third pattern block 2103; and the fifth reinforcing member 225 extends from the third end surface 21031 to the fourth end surface 21032. The fourth reinforcing member 224 is preferably a fourth steel sheet, and the fifth reinforcing member 225 is preferably a fifth steel sheet.

[0046] The application of the steel sheet makes the cutting of the first pattern block 2101 and the second pattern block 2102 more accurate, so that the tire can more evenly contact the ground during driving, avoiding abnormal wear of the pattern, thereby improving the wear performance.

[0047] In the present application, as shown in Figure 6 and Figure 7 , the first longitudinal groove 2104 includes a first groove side wall surface 21041 and a first groove bottom surface 21042, and the angle between the first groove side wall surface 21041 and the vertical plane is A, A = 5°-10°; preferably 8°; the first groove side wall surface 21041 and the first groove bottom surface 21042 are connected by an arc surface, and the radius of the arc surface is R1, R1 is preferably 2.5mm; the second longitudinal groove 2105 includes a second groove side wall surface 21051 and a second groove bottom surface 21052, and the angle between the second groove side wall surface 21051 and the vertical plane is B, B = 10°-15°, preferably 12°, and the second groove side wall surface 21051 and the second groove bottom surface 21052 are connected by an arc surface, and the radius of the arc surface is R2, R2 is preferably 2.5mm. The inclined design of the longitudinal groove not only improves the drainage performance of the tire under rainy and wet road conditions, reduces the risk of skidding, but also optimizes the aerodynamic characteristics, reduces the wind resistance during driving, and reduces fuel consumption.

[0048] Further, each pattern unit 210 further comprises a transverse groove 230, and a convex rib is arranged on the groove bottom surface of the transverse groove 230, wherein the width of the transverse groove 230 accounts for 0.144-0.151 of the total width of each pattern unit 210. Preferably, in each pattern unit, the transverse groove 230 is arranged between two adjacent third pattern blocks 2103. The depth H of the transverse groove 230 is 4.5 mm, and the third groove side wall surface of the transverse groove 230 is connected with the third groove bottom surface through an arc surface, and the radius of the circumference where the arc surface is located is R3, and R3 is preferably 2.5 mm.

[0049] In specific implementation, the two sides of the first pattern block 2101 are respectively provided with the second pattern block 2102 and the third pattern block 2103, and the two second pattern blocks 2102 in each pattern unit 210 are arranged in central symmetry, and the two third pattern blocks 2103 in each pattern unit 210 are arranged in central symmetry.

[0050] The tire has a wider tread profile, which not only improves grip on snow but also enhances performance in adverse weather conditions. The wide tread increases the tire's handling stability and gives it a more powerful appearance. While maintaining comfort, we have further improved handling performance and grip by balancing the rigidity of the shoulder, ensuring safety on various road surfaces. Through simulation analysis of tire marks and stress distribution, we have achieved uniform distribution of contact pressure, effectively avoiding wear and quality problems caused by stress concentration, significantly improving the durability and overall service life of the tire. The tire has a symmetrical pattern design with four longitudinal grooves to optimize performance on different road surfaces. The symmetrical pattern design improves handling and comfort on urban highways, while on snow or wet roads, the special shoulder design and drainage channels, i.e., the lateral grooves 230 located on the side of the third pattern block 2103 in the shoulder of the tread, enhance drainage capacity and anti-skid performance, thereby improving grip and driving safety. The design of four longitudinal grooves not only helps to improve the drainage efficiency of the tire, but also enhances the traction on snow, reducing the risk of skidding. In addition, the special shape of the steel sheet ensures stability and durability on various road conditions. The tire has a small, regular, symmetrical pattern design that effectively reduces the ground impact force on each unit area of the pattern block, thereby improving wear resistance. In snow conditions, the strong rigidity and large-angle arrangement of the first pattern block 2101 provide excellent traction and responsiveness, enhancing grip on snow. In addition, the raised design in the pattern block edge groove further improves drainage and mud removal capacity, i.e., the groove bottom of the lateral groove 230 has a raised rib with a height of 1 mm, ensuring comfort and handling on wet roads, while also extending the service life of the tire. Although this product is mainly suitable for various road surfaces, including snow, we also pay attention to the driving experience of customers on various road conditions. To meet these needs, we use finite element simulation technology with three pitch lengths to find the pitch arrangement with the least noise; in addition, this product also focuses on subjective evaluation and NVH (noise, vibration, and comfort), thereby improving the noise comfort during driving.

[0051] The overall ground contact ratio is 64.7%-65.8% in the pattern ground contact width range. The ground contact area ratio of the first pattern block 2101 to the second pattern block 2102 is 5:4. In the single pitch width Y1, Y2, Y3, Y4, Y5, the proportion of the transverse groove 230 is 0.144-0.151. The single side of the second pattern block 2102 occupies the proportion of the pattern ground contact width, which is 0.358-0.394, and the single side of the first pattern block 2101 occupies the proportion of 0.436-0.447. With the change of the pitch size, the steel sheet position is scaled, and when the pitch is too small or too large, the number of steel sheets is also added. A transverse groove 230 and the pattern block adjacent to it define a pattern pitch.

[0052] The pattern ground contact ratio refers to the proportion of the actual pattern ground contact area to the total area in the pattern ground contact width T range, and the range is 64%-65%.

[0053] The tire tread is distributed along the circumferential direction Four grooves, two first longitudinal grooves 2104 and two second longitudinal grooves 2105, and the first pattern block 2101, the second pattern block 2102 and the third pattern block 2103 all contain steel sheets. The ground contact area ratio of the first pattern block 2101 to the second pattern block 2102 is 5:4, and the overall ground contact ratio is 64.7%-65.8% in the pattern ground contact width range, wherein the overall ground contact ratio is the actual ground contact area of the pattern block ÷ the area of the overall tire pattern plane. Good handling stability is provided, especially during high-speed travel. In addition, the wide longitudinal groove design improves the drainage performance of the tire, effectively reduces the side slip phenomenon under bad road conditions, and enhances the handling performance. The application of steel sheets improves the cutting accuracy of the first pattern block 2101 and the second pattern block 2102, so that the tire contacts the ground more evenly during driving, avoids abnormal wear of the pattern, and thus improves the wear performance. The groove depth of the overall pattern design is deeper than that of ordinary HT products, and the tread formula is upgraded, which not only enhances the traction and braking performance of the tire, but also exhibits better wear resistance and snow performance than the first generation formula.

[0054] For the LTC specification in the HT product, these tires adopt a three-layer cord structure, which provides stronger load capacity compared to the ordinary two-layer design. The sidewall structure is optimized, and the support rubber adopts a low-heat generation design, which reduces the heat generation of the rim during driving, thereby improving the tear resistance, puncture resistance and ability to cope with bad road conditions of the tire.

[0055] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects:

[0056] 1. The pattern design adopts small block symmetrical design, which not only effectively increases the grounding area, but also reduces the ground impact force per unit area of the pattern block, thereby improving the wear resistance of the tire. In addition, the first pattern block 2101 is arranged at a large angle, providing excellent traction and response performance. The shoulder groove bottom protrusion design of the transverse groove 230 can improve the safety and maneuverability of the vehicle in rainy and snowy weather. Such pattern design not only optimizes the wear resistance of the tire, but also significantly enhances the performance in snow.

[0057] 2. The zigzag design of the steel sheet improves the rigidity of the shoulder of the tire and the grip on the ground, especially in normal and snowy road conditions, improving safety and enhancing maneuverability. The middle and second pattern block 2102 of the tire are divided into 2-4 small areas by the steel sheet and groove, making the pattern design more atmospheric and rugged than ordinary tires. During vehicle driving, the feedback force of the ground impact is stronger, the grip is improved, and the maneuverability is significantly enhanced. In addition, this design also significantly improves the snow performance, making the tire perform better in snowy conditions.

[0058] 3. The application of steel sheet makes the cutting of the first pattern block 2101 and the second pattern block 2102 more precise, so that the tire can more evenly contact the ground during driving, avoiding abnormal wear of the pattern, thereby improving the wear resistance. The overall pattern design has a deeper groove depth than ordinary HT products, and the tread formula has been upgraded, not only enhancing the traction and braking performance of the tire, but also showing better wear resistance and snow performance than the first generation formula. The LTC specification tire adopts a three-layer cord structure, which provides stronger load capacity compared to the ordinary two-layer design. At the same time, the sidewall structure is optimized, and the support rubber adopts a low heat generation design to reduce the heat generation of the rim during driving. In summary, the tire's tear resistance, puncture resistance, and ability to handle rough road conditions are improved.

[0059] 4. The pitch width of the pattern block is optimized within the range of the pattern grounding width, which can significantly improve the straight-line stability of the vehicle and enhance the steering response of the tire at small turning angles, allowing it to respond quickly in harsh road conditions. The ratio of groove width to pitch width is optimized, which significantly improves the drainage capacity of the pattern and enhances the drainage and mud removal performance, thereby improving safety. The pattern block within the running surface width is equipped with specially designed steel sheets with strong rigidity and large angle arrangement, providing excellent traction and response performance. In addition, the tread pattern design rules comply with the pattern appearance design requirements of HT products.

[0060] 5. The first pattern block 2101 has a large volume and is arranged at a large angle, which can quickly conduct the generated circumferential force and provide excellent handling and response performance. During driving, each pattern block is in full contact with the ground, ensuring high pattern utilization. Tests have shown that the pattern contact ratio is between 64% and 65%, which not only improves wear performance but also ensures good handling. The wide groove is designed to be deep, combined with staggered pattern blocks, effectively eliminating mud and water, and preventing water sliding. The staggered design of the shoulder pattern improves noise performance and improves the comfort of driving on urban asphalt roads. The symmetrical distribution of the pattern blocks further enhances driving handling.

[0061] 6. The first pattern block 2101, the second pattern block 2102, and the third pattern block 2103 are alternately arranged in a single pitch and symmetrically distributed along the center. This design can ensure the symmetry and uniformity of the tire upper and lower molds, thereby improving the stability of the steering. Along the entire circumference of the tire, Y1, Y2, Y3, Y4, and Y5 are arranged in a circular ring in proportion (Y1:Y2:Y3:Y4:Y5=1.00:1.14:1.20:1.32:1.4), and contain a variety of pitches with different quantities and sizes. According to the simulation results, the five pitches are arranged in a disordered and complex manner along the circumference of the tire. This arrangement can effectively disrupt the vibration frequency of the gas in the groove, reduce pattern noise, improve noise comfort during driving, and meet the user's all-terrain use requirements.

[0062] The above only describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A tyre comprising a tread (100), characterized in that, The tire comprises: A plurality of block groups (200) are sequentially arranged along the circumferential direction of the tread (100); Each block group (200) comprises a plurality of pattern units (210), each pattern unit (210) is arranged in the circumferential direction of the tread (100), and the circumferential direction of the tread (100) is the width direction, and the width of each pattern unit (210) is arranged in a predetermined proportion; Wherein, the width ratio between two adjacent pattern units (210) is 1.1-1.14; Each pattern unit (210) comprises a plurality of longitudinal grooves, and the plurality of longitudinal grooves are arranged in the axial direction of the tread (100), and each longitudinal groove extends in the circumferential direction of the tread (100).

2. Tyre according to Claim 1, characterized in that, The plurality of pattern units (210) comprise: The first pattern unit (211), the second pattern unit (212), the third pattern unit (213), the fourth pattern unit (214) and the fifth pattern unit (215) are sequentially arranged along the circumferential direction of the tread (100); Wherein, the width of the first pattern unit (211) is Y1, the width of the fifth pattern unit (215) is Y5, and Y5:Y1=1.5-1.

6.

3. The tire of claim 1, wherein, The plurality of pattern units (210) comprise: The first pattern unit (211), the second pattern unit (212), the third pattern unit (213), the fourth pattern unit (214) and the fifth pattern unit (215) are sequentially arranged along the circumferential direction of the tread (100); the width of the first pattern unit (211) is Y1, the width of the second pattern unit (212) is Y2, the width of the third pattern unit (213) is Y3, the width of the fourth pattern unit (214) is Y4, and the width of the fifth pattern unit (215) is Y5; Y1:Y2:Y3:Y4:Y5=1.00:1.14:1.20:1.32:1.

4.

4. The tire of claim 1, wherein, Each pattern unit (210) comprises: A first block (2101); A second block (2102) and a third block (2103) are sequentially arranged in the direction from the center of the tread (100) to the axial end of the tread (100); The plurality of longitudinal grooves comprise: A first longitudinal groove (2104) extending in the circumferential direction of the tread (100), the first longitudinal groove (2104) is arranged between the first block (2101) and the second block (2102); A second longitudinal groove (2105) extending in the circumferential direction of the tread (100), the second longitudinal groove (2105) is arranged between the second block (2102) and the third block (2103).

5. Tyre according to Claim 4, characterized in that, An area of a grounding surface of the first pattern block (2101) is S1, an area of a grounding surface of the second pattern block (2102) is S2, S1:S2=5:

4.

6. The tire of claim 4, wherein, In an axial direction of the tread (100) as a length direction, a width of a grounding surface of each of the pattern units (210) is S3, a width of a grounding surface of the third pattern block (2103) is S4, and a width of a grounding surface of the second pattern block (2102) is S5. S4:S3=0.358-0.394; S5:S3=0.436-0.

447.

7. The tire of claim 4, wherein, The first pattern block (2101) is provided with a first reinforcing member (221) embedded in the first pattern block (2101). The first reinforcing member (221) has a first included angle between an extension direction and an axis of the tread (100).

8. The tire of claim 4, wherein, The second pattern block (2102) includes a first end surface (21021) and a second end surface (21022) oppositely arranged in the axial direction of the tread (100), and is provided with a second reinforcing member (222) and a third reinforcing member (223); The second reinforcing member (222) extends from the first end surface (21021) toward a middle portion of the second pattern block (2102); The third reinforcing member (223) extends from the first end surface (21021) to the second end surface (21022).

9. The tire of claim 4, wherein, The third pattern block (2103) includes a third end surface (21031) and a fourth end surface (21032) oppositely arranged in the axial direction of the tread (100), and is provided with a fourth reinforcing member (224) and a fifth reinforcing member (225); The fourth reinforcing member (224) extends from the third end surface (21031) toward a middle portion of the third pattern block (2103); The fifth reinforcing member (225) extends from the third end surface (21031) to the fourth end surface (21032).

10. The tire of claim 4, wherein, The first longitudinal groove (2104) includes a first groove side wall surface (21041) and a first groove bottom surface (21042), and an included angle between the first groove side wall surface (21041) and a vertical plane is A, A＝5°～10°； The second longitudinal groove (2105) includes a second groove side wall surface (21051) and a second groove bottom surface (21052), and an included angle between the second groove side wall surface (21051) and the vertical plane is B, B=10°-15°.

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