Tubeless all-steel truck radical tire tread pattern structure and tire

Abstract

The utility model relates to a tubeless type all-steel truck radial tire tread pattern structure and a tire, a tire tread is provided with four longitudinal pattern zigzag grooves, including two central longitudinal zigzag grooves and two outer longitudinal zigzag grooves; a plurality of C-shaped transverse shallow grooves and transverse zigzag shallow grooves are uniformly distributed on the central trapezoidal pattern blocks between the two central longitudinal zigzag grooves, and a plurality of first Z-shaped shallow grooves and inclined straight grooves are uniformly distributed on the longitudinal irregular hexagonal pattern blocks between the central longitudinal zigzag grooves and the outer longitudinal zigzag grooves; and a plurality of second Z-shaped shallow grooves and transverse inclined wide grooves are uniformly distributed on the transverse irregular pentagonal pattern blocks between the longitudinal zigzag grooves on the outer side and the tire shoulders on the two sides of the tire tread. Compared with the prior art, the tire with the pattern form has the advantages that the rolling resistance is lower, the heat dissipation function is good, the noise condition is effectively reduced, the symmetrical pattern design ensures uniform abrasion, eccentric wear is avoided, and the service life of the tire is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of tire design, and in particular to a tubeless all-steel radial truck tire tread pattern structure and tire. Background Technology

[0002] Tires are annular, elastic rubber products mounted on various vehicles or machinery for contact with the ground and rolling. Tires are typically mounted on metal rims, supporting the vehicle body, cushioning external impacts, ensuring contact with the road surface, and guaranteeing vehicle performance. Tires are often used under complex and harsh conditions, enduring various deformations, loads, forces, and extreme temperatures during operation. Therefore, they must possess high load-bearing capacity, traction, and cushioning performance. Simultaneously, tires are also required to have high wear resistance and flexural strength, as well as low rolling resistance and heat generation.

[0003] Tire tread designs vary widely and must be considered based on their suitability for different uses and road conditions. Tire tread plays a crucial role in the overall driving experience. A well-designed tread pattern can not only effectively save fuel but also reduce noise during driving. Furthermore, it can enhance the vehicle's driving force, braking force, and traction performance on various harsh and slippery road surfaces, thereby improving driving safety.

[0004] Tire tread patterns are broadly categorized into straight groove patterns, lateral groove patterns, longitudinal and transverse groove patterns, and block patterns. Straight groove patterns, also known as standard tread patterns, are primarily designed with longitudinal grooves. Straight groove patterns offer excellent handling stability, low rotational resistance, low noise, and particularly excellent water drainage, making them less prone to lateral slippage. They are suitable for driving on flat roads and are applicable to passenger cars, trucks, and even aircraft. However, straight groove patterns have the disadvantage of relatively poor traction and drive capability. Lateral groove patterns are a design primarily based on transverse grooves. Lateral groove patterns offer exceptionally good driving force, braking force, and traction, and also exhibit excellent wear resistance. Lateral groove patterns are suitable for harsh road surfaces such as gravel roads and are mostly used in industrial and short-to-medium-distance vehicles such as bulldozers, excavators, and loaders. However, lateral groove patterns have the disadvantage of higher noise levels. Longitudinal and transverse groove patterns, also known as composite patterns, combine the design of straight and transverse grooves, possessing the advantages of both, and are suitable for harsh road surfaces. However, they are prone to abnormal wear during use. Block patterns have patterns arranged in regular blocks. Block patterns provide good driving and braking force, providing the power to propel the vehicle forward, and are suitable for roads such as snow and mud. However, block patterns have the disadvantages of poor wear resistance and short mileage life.

[0005] The main metric all-steel tubeless radial truck tires on the market are used on paved roads. The main quality defects are shoulder gaps, crown gaps, and poor wear resistance. Poor wear resistance stems from uneven ground pressure distribution or abnormal wear (such as stone scratches or localized overheating and softening). Shoulder gaps (delamination or cracking in the tire shoulder area) are mainly caused by stress concentration and high-temperature aging, commonly seen in heavy-load, frequent steering, or poor heat dissipation conditions. Crown gaps (delamination in the tire crown area) are often caused by excessive localized impact loads or stones embedding and damaging the belt layer. Tires require high-quality tread patterns, including good shoulder heat dissipation, wear resistance, low rolling resistance, low noise, and a novel appearance. Utility Model Content

[0006] The purpose of this invention is to provide a tubeless all-steel radial truck tire tread pattern structure and tire, which has low rolling resistance, excellent wear resistance, and low noise.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] This utility model provides a tubeless all-steel radial truck tire tread pattern structure. The tread pattern structure is set on the tire tread, and the tire tread is provided with 4 longitudinal tread grooves. The tread blocks between adjacent longitudinal tread grooves are provided with transverse tread grooves.

[0009] The longitudinal tread grooves include two central longitudinal tread grooves located in the middle of the tire tread, and outer longitudinal tread grooves located on both sides of the central longitudinal tread grooves.

[0010] The tread blocks include a central trapezoidal tread block between two central longitudinal zigzag grooves, a longitudinally irregular hexagonal tread block between the central longitudinal zigzag groove and the outer longitudinal zigzag groove, and a transversely irregular pentagonal tread block between the outer longitudinal zigzag groove and the two tire shoulders on both sides of the tire tread.

[0011] The tread grooves include lateral inclined wide grooves, C-shaped lateral shallow grooves, lateral zigzag shallow grooves, first Z-shaped shallow grooves, inclined straight grooves, and second Z-shaped shallow grooves. The C-shaped lateral shallow grooves and lateral zigzag shallow grooves are evenly distributed along the tire tread circumference on the central trapezoidal tread block. The first Z-shaped shallow grooves and inclined straight grooves are evenly distributed along the tire tread circumference on the longitudinal irregular hexagonal tread block. The second Z-shaped shallow grooves and lateral inclined wide grooves are evenly distributed along the tire tread circumference on the lateral irregular pentagonal tread block.

[0012] The bottoms of both the longitudinal zigzag grooves and the transverse zigzag grooves are rounded.

[0013] Preferably, the four longitudinal tread grooves are spaced apart, and their extension direction is the same as the circumferential direction of the tire tread 1.

[0014] Preferably, the width of the central longitudinal tortuous groove is 11-13 mm, the depth is 21-23 mm, and the radius of the arc transition at the bottom of the groove is 3.6-3.9 mm.

[0015] More preferably, the width of the central longitudinal tortuous groove is 12mm, the depth is 22mm, and the radius of the arc transition at the bottom of the groove is 3.73mm.

[0016] Preferably, the width of the outer longitudinal tortuous groove is 5-7 mm, the depth is 21-23 mm, and the radius of the arc transition at the bottom of the groove is 1.8-2.1 mm.

[0017] More preferably, the width of the outer longitudinal tortuous groove is 6 mm, the depth of the groove is 22 mm, and the radius of the arc transition at the bottom of the groove is 1.95 mm.

[0018] In this invention, the bottom of the central longitudinal tortuous ditch has a rounded transition, which provides strong drainage.

[0019] Preferably, the width of the central trapezoidal patterned block is between 39.7 and 47.6 mm, and its width varies with the turning point of the central longitudinal zigzag groove.

[0020] Preferably, the width of the longitudinally irregular hexagonal patterned block is between 30-35 mm.

[0021] More preferably, the width of the longitudinally irregular hexagonal patterned block is 32.25 mm.

[0022] Preferably, the width of the horizontally irregular pentagonal patterned block is between 44.5 and 45.6 mm.

[0023] More preferably, the width of the short side of the horizontal irregular pentagonal pattern block is 44.5 mm, and the width of the long side is 45.6 mm.

[0024] Preferably, the C-shaped horizontal shallow grooves and the horizontally tortuous shallow grooves are alternately arranged on the central trapezoidal pattern block, the first Z-shaped shallow grooves and the inclined straight grooves are alternately arranged on the longitudinally irregular hexagonal pattern block, and the second Z-shaped shallow grooves and the horizontally inclined wide grooves are alternately arranged on the horizontally irregular pentagonal pattern block.

[0025] Preferably, the width of the C-shaped transverse shallow trench and the transverse tortuous shallow trench is 0.7-0.9 mm, the depth is 16-18 mm, and the bottom of the trench is set as a circular arc transition with a radius of 0.3-0.5 mm.

[0026] More preferably, the width of the C-shaped transverse shallow trench and the transverse tortuous shallow trench is 0.8 mm, the depth is 17 mm, and the bottom of the trench is set as an arc transition with a radius of 0.4 mm.

[0027] Preferably, the width of the first Z-shaped shallow trench and the inclined straight trench is 0.7-0.9 mm, the depth is 16-18 mm, the bottom of the trench is set as a circular arc transition with a radius of 0.3-0.5 mm, and the inclination angle of the inclined straight trench reaches 14-20°.

[0028] More preferably, the width of the first Z-shaped shallow trench and the inclined straight trench is 0.8 mm, the depth is 17 mm, the bottom of the trench is set as a circular arc transition with a radius of 0.4 mm, and the inclination angle of the inclined straight trench reaches 17°.

[0029] Preferably, the width of the second Z-shaped shallow trench is 0.7-0.9 mm, the depth is 2-4 mm, and the bottom of the trench is set as a circular arc transition with a radius of 0.3-0.5 mm.

[0030] More preferably, the second Z-shaped shallow trench has a width of 0.8 mm, a depth of 3 mm, and a bottom of the trench with a circular arc transition of 0.4 mm radius.

[0031] Preferably, the width of the transversely inclined wide trench is 8-10mm, the depth is 4-6mm, the radius of the arc transition at the bottom of the trench is set to 1-3mm, and the inclination angle of the transversely inclined wide trench reaches 14-20°.

[0032] More preferably, the width of the transversely inclined wide trench is 9mm, the depth is 5mm, the radius of the arc transition at the bottom of the trench is set to 2mm, and the inclination angle of the transversely inclined wide trench reaches 17°.

[0033] Preferably, multiple square grooves are evenly distributed on the tire shoulders on both sides of the tire tread, one end of the lateral inclined wide groove is connected to the square groove, and the other end of the lateral inclined wide groove is connected to the outer longitudinal zigzag groove.

[0034] Preferably, the square trench is 28-31mm long, 8.4-10.4mm wide, and 5-7mm deep, and has a downward-facing conical angle of 8-12°.

[0035] More preferably, the square trench is 29.5 mm long, 9.4 mm wide, and 6 mm deep, and is tapered downwards at a 10° angle.

[0036] Preferably, the inner corner at the transition point between the horizontally inclined wide ditch and the square ditch is a circular arc transition with a radius of 1-3mm.

[0037] More preferably, the inner corner at the transition point between the transversely inclined wide ditch and the square ditch is a circular arc transition with a radius of 2mm.

[0038] Preferably, the transition point between the other end of the horizontally inclined wide groove and the outer longitudinal tortuous groove is set as an arc transition with a radius of 3.5-5.5mm and a drop of 15-19mm, so that the overall transition is smooth and provides heat dissipation and overall aesthetics for the shoulder.

[0039] More preferably, the radius of the arc transition is 4.5 mm and the drop is 17 mm.

[0040] Preferably, each longitudinal tread groove has 6 wear indicators evenly distributed at the same intervals along the circumference of the tire tread. The wear indicator is a raised platform 2-2.8mm above the bottom of the longitudinal tread groove. The width of the wear indicator is the same as the groove surface of the longitudinal tread groove, the length is 8-12mm, the depth is 2-2.8mm, and a hollow circular hole with a diameter of 2.5-3.5mm is provided in the center.

[0041] More preferably, the wear mark is a boss that is 2.4 mm higher than the bottom of the longitudinal zigzag groove. The width of the wear mark is the same as the width of the longitudinal zigzag groove, the length is 10 mm, the depth is 2.4 mm, and a hollow circular hole with a diameter of 3 mm is provided in the center.

[0042] In this invention, the tire wear indicator is a mark used to determine the degree of tire wear, which is of great significance for the safe driving of vehicles and the service life of tires.

[0043] Preferably, the tread blocks and tire shoulders are provided with several vent holes with a diameter of 0.7-0.9 mm to facilitate venting during vulcanization, prevent air pockets from causing tread rounding and sidewall lack of rubber, promote rubber flow, and make rubber vulcanization more uniform.

[0044] More preferably, the diameter of the vent hole is 0.8 mm.

[0045] Preferably, the tire tread is composed of nine equal parts of movable mold, and the tread pattern pitch is 75 segments.

[0046] On the other hand, this utility model provides a tire, including a wheel disc and a tire tread, wherein the tire tread adopts the tread pattern structure of the tubeless all-steel radial truck tire.

[0047] Tires employing this novel tread pattern exhibit superior tread heat dissipation performance. The rationally arranged mixed tread pattern enhances driving safety, while the horizontal and vertical groove design provides excellent traction and braking performance. The symmetrical tread design ensures even wear, preventing uneven wear and extending tire lifespan.

[0048] Compared with the prior art, the present invention has the following beneficial effects:

[0049] (1) The present invention adopts a design of four longitudinal zigzag grooves, which makes the tire have lower rolling resistance and save fuel; the pattern of the present invention is regularly arranged, so it can effectively reduce the noise of the tire during driving; the symmetrical pattern design ensures uniform wear, avoids uneven wear, and improves the service life of the tire.

[0050] (2) The tire with the pattern of this utility model has high crown heat dissipation performance. The shoulder is designed with lateral pattern, which makes the shoulder heat dissipation excellent and can effectively prevent early shoulder damage. The mixed pattern is reasonably arranged, which improves the safety during driving. The horizontal and vertical pattern groove design provides good traction and braking performance.

[0051] (3) The tire tread of this utility model is provided with four longitudinal tread grooves (including the central longitudinal tread groove and the outer longitudinal tread groove) at intervals along its circumference. Adjacent longitudinal tread grooves form tread blocks (including the central trapezoidal tread block, the longitudinal irregular hexagonal tread block, and the transverse irregular pentagonal tread block). The tread blocks are provided with tread grooves (transverse inclined wide groove, C-shaped transverse shallow groove, transverse zigzag shallow groove, first Z-shaped shallow groove, inclined straight groove, and second Z-shaped shallow groove). The mixed tread design provides driving safety in various weather conditions.

[0052] (4) The tread pattern pitch of this utility model is 75 segments. The tread is divided into nine equal parts, with four longitudinal zigzag grooves extending from the swivel mold to the upper and lower side plates. The two middle grooves are central longitudinal zigzag grooves with a width of 12mm and a depth of 22mm, with a circular arc transition at the bottom of the groove with a radius of 3.73mm. The two outer longitudinal zigzag grooves are 6mm wide and 22mm deep, with a circular arc transition at the bottom of the groove with a radius of 1.95mm. The circular arc transition at the bottom of the grooves provides strong drainage.

[0053] (5) This utility model achieves good guidance, drainage, grip and anti-skid performance of the tire at high speed through the combination design of longitudinal and transverse tread patterns. In addition, the constantly changing tread groove angle improves the tire's traction and lateral force. Attached Figure Description

[0054] Figure 1 This is a schematic diagram of the structure of this utility model;

[0055] Figure 2 This is a structural diagram of a single pitch of the tire tread pattern of this utility model;

[0056] In the diagram: 1-Tire tread; 2-Longitudinal tread groove; 21-Central longitudinal tread groove; 22-Outer longitudinal tread groove; 3-Tread block; 31-Central trapezoidal tread block; 32-Longitudinal irregular hexagonal tread block; 33-Transverse irregular pentagonal tread block; 4-Tread groove; 41-Transverse sloping wide groove; 42-Type C-shaped transverse shallow groove; 43-Transverse zigzag shallow groove; 44-First Z-shaped shallow groove; 45-Sloping straight groove; 46-Second Z-shaped shallow groove; 5-Square groove; 6-Ventilation port; 7-Wear indicator; 8-Tire shoulder. Detailed Implementation

[0057] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0058] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0059] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0060] Unless otherwise specified, the functional components or structures in the following embodiments or examples are conventional components or structures used in the art to achieve the corresponding functions.

[0061] Example 1

[0062] like Figure 1 As shown, a tubeless all-steel radial truck tire tread pattern structure is provided on the tire tread 1. The tire tread 1 has 4 longitudinal tread grooves 2, and shallow grooves 4 are provided on the tread blocks 3 between adjacent longitudinal tread grooves 2.

[0063] The longitudinal tread groove 2 includes two central longitudinal tread grooves 21 and two outer longitudinal tread grooves 22: the two central longitudinal tread grooves 21 are located in the middle of the tire tread 1, and the two outer longitudinal tread grooves 22 are located on both sides of the two central longitudinal tread grooves 21.

[0064] The tread blocks 3 include a central trapezoidal tread block 31, a longitudinal irregular hexagonal tread block 32, and a transverse irregular pentagonal tread block 33. The central trapezoidal tread block 31 is located between two central longitudinal zigzag grooves 21. The longitudinal irregular hexagonal tread block 32 is located between the central longitudinal zigzag groove 21 and the outer longitudinal zigzag groove 22. The transverse irregular pentagonal tread block 33 is located between the outer longitudinal zigzag groove 22 and the tire shoulders 8 on both sides of the tire tread 1.

[0065] The specific distribution of the tread grooves 4 is as follows: On the central trapezoidal tread block 31, several C-type lateral shallow grooves 42 and lateral zigzag shallow grooves 43 are evenly distributed along the circumference of the tire tread 1; On the longitudinal irregular hexagonal tread block 32, several first Z-type shallow grooves 44 and inclined straight grooves 45 are evenly distributed along the circumference of the tire tread 1; On the lateral irregular pentagonal tread block 33, several second Z-type shallow grooves 46 and lateral inclined wide grooves 41 are evenly distributed along the circumference of the tire tread 1.

[0066] Furthermore, in this embodiment, the bottom of both the longitudinal patterned zigzag groove 2 and the patterned transverse groove 4 adopts a rounded transition.

[0067] Example 2

[0068] Based on Example 1, this example provides a tubeless all-steel radial truck tire tread pattern structure. The tire tread 1 is composed of nine equal parts of movable molds, and the tread pitch of the tire tread 1 is 75 segments.

[0069] Multiple square grooves 5 are evenly distributed on the tire shoulder 8 on both sides of the tire tread 1. In this embodiment, the square groove 5 is 29.5 mm long, 9.4 mm wide, and 6 mm deep, and is tapered downward at a 10° angle.

[0070] like Figure 2 As shown, four longitudinal tread grooves 2 are spaced apart on the tire tread 1. The extension direction of the four longitudinal tread grooves 2 is the same as the circumferential direction of the tire tread 1. The longitudinal tread grooves 2 include two central longitudinal tread grooves 21 located in the center of the tire tread 1 and two outer longitudinal tread grooves 22 located on both sides of the two central longitudinal tread grooves 21.

[0071] Six wear indicators 7 are evenly distributed at the same intervals along the circumference of the tire tread 1 on each longitudinal tread groove 2. These wear indicators 7 are used to determine the degree of tire wear. The wear indicator 7 is a raised platform 2.4 mm above the bottom of the longitudinal tread groove 2, and the width of the wear indicator 7 is the same as the width of the groove surface of the longitudinal tread groove 2.

[0072] A central trapezoidal tread block 31 is provided between two central longitudinal zigzag grooves 21. Several C-shaped lateral shallow grooves 42 and lateral zigzag shallow grooves 43 are provided on the central trapezoidal tread block 31 at intervals. The C-shaped lateral shallow grooves 42 and lateral zigzag shallow grooves 43 are evenly distributed on the central trapezoidal tread block 31 along the circumference of the tire tread 1.

[0073] A longitudinal irregular hexagonal pattern block 32 is provided between the central longitudinal zigzag groove 21 and the outer longitudinal zigzag groove 22. Several first Z-shaped shallow grooves 44 and inclined straight grooves 45 are provided at intervals on the longitudinal irregular hexagonal pattern block 32. The first Z-shaped shallow grooves 44 and inclined straight grooves 45 are evenly distributed along the circumference of the tire tread 1 on the longitudinal irregular hexagonal pattern block 32.

[0074] A transversely irregular pentagonal pattern block 33 is provided between the outer longitudinal zigzag groove 22 and the two tire shoulders 8 on both sides of the tire tread 1. Several second Z-shaped shallow grooves 46 and transversely inclined wide grooves 41 are provided at intervals on the transversely irregular pentagonal pattern block 33. The second Z-shaped shallow grooves 46 and transversely inclined wide grooves 41 are evenly distributed on the transversely irregular pentagonal pattern block 33 along the circumference of the tire tread 1. Among them, one end of the transversely inclined wide groove 41 is connected to the square groove 5 and the other end is connected to the outer longitudinal zigzag groove 22.

[0075] In this embodiment, a number of exhaust holes 6 with a diameter of 0.8 mm are distributed on the central trapezoidal pattern block 31, the longitudinal irregular hexagonal pattern block 32, the transverse irregular pentagonal pattern block 33, and the tire shoulder 8.

[0076] Example 3

[0077] Based on Example 2, in this example, the width of the central longitudinal tortuous groove 21 is 12mm, the depth is 22mm, and the radius of the arc transition at the bottom of the groove is 3.73mm; the width of the outer longitudinal tortuous groove 22 is 6mm, the depth is 22mm, and the radius of the arc transition at the bottom of the groove is 1.95mm.

[0078] The wear mark 7 is 10mm long and 2.4mm deep, with a hollow circular hole with a diameter of 3mm in the center.

[0079] The width of the central trapezoidal patterned block 31 is between 39.7 and 47.6 mm, and its width varies with the turning point of the central longitudinal zigzag groove 21; the width of the C-shaped transverse shallow groove 42 and the transverse zigzag shallow groove 43 is 0.8 mm, the depth is 17 mm, and the bottom of the groove is set as a circular arc transition with a radius of 0.4 mm.

[0080] The width of the longitudinally irregular hexagonal patterned block 32 is 32.25 mm; the width of the first Z-shaped shallow groove 44 and the inclined straight groove 45 is 0.8 mm and the depth is 17 mm. The bottom of the groove is set as a circular arc transition with a radius of 0.4 mm, and the inclination angle of the inclined straight groove reaches 17°.

[0081] The width of the horizontally irregular pentagonal patterned block 33 is between 44.5 and 45.6 mm; the width of the second Z-shaped shallow groove 46 is 0.8 mm and the depth is 3 mm, with the bottom of the groove set as a rounded transition with a radius of 0.4 mm; the width of the horizontally inclined wide groove 41 is 9 mm and the depth is 5 mm, with the radius of the rounded transition at the bottom of the groove set as 2 mm, and the inclination angle of the horizontally inclined wide groove 41 reaches 17°; the inner corner of the transition between the horizontally inclined wide groove 41 and the square groove 5 is a rounded transition with a radius of 2 mm, and the other end is a rounded transition with a radius of 4.5 mm at the connection transition with the outer longitudinal tortuous groove 22, with a drop of 17 mm. The overall transition is smooth and rounded, providing heat dissipation and overall aesthetics for the shoulder.

[0082] Example 4

[0083] This embodiment provides a tubeless all-steel radial truck tire, including a wheel and a tire tread 1. The tire tread 1 adopts the metric all-steel tubeless radial truck tire tread pattern structure in Embodiment 3.

[0084] After adopting the tire tread structure of this utility model, indoor mileage tests and outdoor actual vehicle mileage tests have confirmed that this tubeless all-steel radial truck tire has low rolling resistance and saves fuel; the lateral tread pattern on the shoulder provides good heat dissipation. The tread pattern is regularly arranged, thus effectively reducing tire noise during driving.

[0085] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A tubeless truck and bus radial tire tread pattern structure characterized in that, The pattern structure is set on the tire tread (1), and the tire tread (1) is provided with 4 longitudinal pattern grooves (2), and the pattern blocks (3) between adjacent longitudinal pattern grooves (2) are provided with transverse pattern grooves (4); The longitudinal tread groove (2) includes two central longitudinal tread grooves (21) disposed in the middle of the tire tread (1), and outer longitudinal tread grooves (22) disposed on both sides of the central longitudinal tread grooves (21). The tread blocks (3) include a central trapezoidal tread block (31) between two central longitudinal zigzag grooves (21), a longitudinal irregular hexagonal tread block (32) between the central longitudinal zigzag groove (21) and the outer longitudinal zigzag groove (22), and a transverse irregular pentagonal tread block (33) between the outer longitudinal zigzag groove (22) and the two tire shoulders (8) on both sides of the tire tread (1); The tread grooves (4) include a transverse inclined wide groove (41), a C-shaped transverse shallow groove (42), a transverse zigzag shallow groove (43), a first Z-shaped shallow groove (44), an inclined straight groove (45), and a second Z-shaped shallow groove (46). The C-shaped transverse shallow groove (42) and the transverse zigzag shallow groove (43) are evenly distributed around the tire tread (1) on the central trapezoidal tread block (31). The first Z-shaped shallow groove (44) and the inclined straight groove (45) are evenly distributed around the tire tread (1) on the longitudinal irregular hexagonal tread block (32). The second Z-shaped shallow groove (46) and the transverse inclined wide groove (41) are evenly distributed around the tire tread (1) on the transverse irregular pentagonal tread block (33). The bottom of both the longitudinal patterned zigzag groove (2) and the patterned transverse groove (4) are rounded.

2. The tread pattern structure of a tubeless truck and bus radial tire according to claim 1, wherein Four longitudinal zigzag grooves (2) are spaced apart, and their extension direction is the same as the circumferential direction of the tire tread (1). The width of the central longitudinal zigzag groove (21) is 11-13mm, the groove depth is 21-23mm, and the radius of the arc transition at the bottom of the groove is 3.6-3.9mm. The width of the outer longitudinal zigzag groove (22) is 5-7mm, the groove depth is 21-23mm, and the radius of the arc transition at the bottom of the groove is 1.8-2.1mm.

3. The inner liner-free type TBR tire tread pattern structure according to claim 1, wherein, The width of the central trapezoidal pattern block (31) is between 39.7 and 47.6 mm, and its width varies with the turning point of the central longitudinal zigzag groove (21); the width of the longitudinal irregular hexagonal pattern block (32) is between 30 and 35 mm; and the width of the transverse irregular pentagonal pattern block (33) is between 44.5 and 45.6 mm.

4. The inner liner-free type TBR tire tread pattern structure according to claim 1, wherein The C-shaped transverse shallow groove (42) and the transverse zigzag shallow groove (43) are alternately arranged on the central trapezoidal pattern block (31), the first Z-shaped shallow groove (44) and the inclined straight groove (45) are alternately arranged on the longitudinal irregular hexagonal pattern block (32), and the second Z-shaped shallow groove (46) and the transverse inclined wide groove (41) are alternately arranged on the transverse irregular pentagonal pattern block (33).

5. The inner liner-free type TBR tire tread pattern structure according to claim 1, wherein The width of the C-shaped transverse shallow trench (42) and the transverse tortuous shallow trench (43) is 0.7-0.9 mm and the depth is 16-18 mm, with the bottom of the trench set as an arc transition with a radius of 0.3-0.5 mm; the width of the first Z-shaped shallow trench (44) and the inclined straight trench (45) is 0.7-0.9 mm and the depth is 16-18 mm, with the bottom of the trench set as an arc transition with a radius of 0.3-0.5 mm, and the inclination angle of the inclined straight trench (45) reaches 14-20°; the width of the second Z-shaped shallow trench (46) is 0.7-0.9 mm and the depth is 2-4 mm, with the bottom of the trench set as an arc transition with a radius of 0.3-0.5 mm; the width of the transverse inclined wide trench (41) is 8-10 mm and the depth is 4-6 mm, with the arc transition radius of the bottom of the trench set as 1-3 mm, and the inclination angle of the transverse inclined wide trench (41) reaches 14-20°.

6. The tread pattern structure of a tubeless truck and bus radial tire according to claim 1, wherein Multiple square grooves (5) are evenly distributed on the tire shoulder (8) on both sides of the tire tread (1). One end of the lateral inclined wide groove (41) is connected to the square groove (5) and the other end of the lateral inclined wide groove (41) is connected to the outer longitudinal zigzag groove (22).

7. The tread pattern structure of a tubeless all-steel radial truck tire according to claim 6, characterized in that, The square ditch (5) is 28-31 mm long, 8.4-10.4 mm wide, and 5-7 mm deep, and has a downward conical angle of 8-12°. The inner corner at the transition point between the horizontally inclined wide ditch (41) and the square ditch (5) is a circular arc transition with a radius of 1-3mm; The other end of the transversely inclined wide ditch (41) and the outer longitudinal tortuous ditch (22) are connected by an arc transition with a radius of 3.5-5.5 mm and a drop of 15-19 mm.

8. A tubeless truck and bus radial tire tread pattern according to claim 1 characterized in that, Each longitudinal tread groove (2) has 6 wear indicators (7) evenly distributed at the same interval along the circumference of the tire tread (1). The wear indicator (7) is a protrusion that is 2-2.8 mm higher than the bottom of the longitudinal tread groove (2). The width of the wear indicator (7) is the same as the groove surface of the longitudinal tread groove (2), the length is 8-12 mm, the depth is 2-2.8 mm, and a hollow round hole with a diameter of 2.5-3.5 mm is set in the center.

9. The tread pattern structure of a tubeless truck and bus radial tire according to claim 1, wherein Several exhaust holes (6) with a diameter of 0.7-0.9 mm are distributed on the tread block (3) and the tire shoulder (8).

10. A tire, comprising a disc and a tire tread (1), characterized in that, The tire tread (1) adopts the tread pattern structure of tubeless all-steel radial truck tire as described in any one of claims 1 to 9.

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