Tread pattern structure of medium-short-distance all-steel truck radial tire

Abstract

The utility model relates to a tread pattern structure of a medium-short distance all-steel truck radial tire, which belongs to the field of tires and comprises a tire tread as well as an under-shoulder pattern groove, a tire shoulder, a second longitudinal zigzag groove, a pattern block group, a first longitudinal zigzag groove, a pattern block group, a second longitudinal zigzag groove, a tire shoulder and an under-shoulder pattern groove which are arranged on the tire tread from left to right, the pattern block group is formed by arranging a plurality of pattern blocks in the circumferential direction of the tire tread, and a transverse groove is formed between every two adjacent pattern blocks; and the outermost top points of the pattern blocks in the pattern block group arranged on one side of the first longitudinal zigzag groove are opposite to the transverse grooves in the pattern block group arranged on one side of the first longitudinal zigzag groove. The tire adopting the pattern form disclosed by the utility model has lower rolling resistance and saves fuel oil; due to the closed tire shoulder design, the rigidity of shoulder pattern strips is improved, and eccentric wear is effectively prevented; the patterns are regularly arranged, so that the noise generated in the running process of the tire can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of tires, specifically to a tread pattern structure for a medium-to-short distance all-steel radial truck tire. Background Technology

[0002] Tires are annular, elastic rubber products fitted onto various vehicles or machinery for contact with the ground and rolling. They 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, they are required to have high wear resistance and flexural strength, as well as low rolling resistance and heat generation. Half of the world's rubber consumption is used in tire production, demonstrating the significant rubber consumption of tires.

[0003] Tire tread designs come in a variety of styles, tailored to different uses and road conditions. These factors should be considered when selecting tires. Tire tread plays a crucial role in overall driving performance. A well-designed tread pattern can not only effectively save fuel and reduce noise during driving, but also enhance the vehicle's driving force, braking force, and traction on various harsh and slippery road surfaces, thereby improving driving safety.

[0004] There are several main types of tire tread patterns:

[0005] (1) Straight groove pattern, also called ordinary pattern, is a pattern design with vertical grooves as the main feature.

[0006] Features: Excellent handling stability, low rotational resistance, low noise, and especially excellent drainage performance, making it less prone to lateral slippage.

[0007] Suitable for: travel on flat roads. Vehicle types: cars, trucks, and even airplanes.

[0008] Disadvantages: Poor driving and traction.

[0009] (2) Horizontal groove pattern: Pattern design with horizontal grooves as the main feature.

[0010] Features: The transverse groove pattern provides exceptional driving force, braking force, and traction, and also exhibits excellent wear resistance.

[0011] Suitable for: rough roads such as gravel roads. Vehicle types: mostly used in industrial and short-to-medium distance vehicles such as bulldozers, excavators, loaders and other medium and heavy-duty trucks.

[0012] Disadvantage: It's noisy.

[0013] (3) Vertical and horizontal groove pattern: The vertical and horizontal groove pattern is also called the composite pattern, which combines the design of vertical groove and horizontal groove patterns.

[0014] Features: It combines the advantages of both longitudinal and transverse groove patterns.

[0015] Suitable for: rough road surfaces.

[0016] Disadvantages: Prone to abnormal wear.

[0017] (4) Block pattern: The pattern is arranged in a regular block pattern.

[0018] Features: Good driving and braking force, providing the power to propel the vehicle forward.

[0019] Suitable for: snow, mud, and other road surfaces.

[0020] Disadvantages: Poor wear resistance and short service life.

[0021] The main short-to-medium range all-steel radial truck tires on the market are used on paved roads. The main quality defects of these tires are shoulder gaps, crown gaps, and poor wear resistance. The tires have high requirements for tread patterns and should have low heat generation and good wear resistance, low noise, low rolling resistance, and a novel appearance. Utility Model Content

[0022] The purpose of this utility model is to overcome at least one of the defects of the prior art and provide a tread pattern structure for a medium-to-short distance all-steel radial truck tire.

[0023] The objective of this utility model can be achieved through the following technical solutions:

[0024] A tread pattern structure for a medium-to-short distance all-steel radial truck tire includes a tire tread and, from left to right, a shoulder groove, a shoulder, a second longitudinal zigzag groove, a tread block group, a first longitudinal zigzag groove, a tread block group, a second longitudinal zigzag groove, a shoulder, and a shoulder groove.

[0025] The tread block group consists of multiple tread blocks arranged circumferentially along the tire tread, with lateral grooves between adjacent tread blocks, providing the tire with excellent traction and braking performance.

[0026] The outermost apex of the tread blocks in the tread block group located on one side of the first longitudinal zigzag groove is opposite to the transverse groove in the tread block group located on the same side of the first longitudinal zigzag groove. That is, the tread blocks in the two rows of tread block groups are staggered in the same direction along the tire tread, which makes the overall shape beautiful and greatly enhances the tire's grip.

[0027] Furthermore, the tread pitch is 52 sections, and the tread has a three-longitudinal zigzag groove design from the nine-part active mold to the upper and lower side plates, which has lower rolling resistance and saves fuel.

[0028] Furthermore, the first longitudinal tortuous groove has a width of 13-14 mm and a depth of 15-16 mm, descends in a funnel shape in the vertical direction, and has a circular arc transition with a radius of 2-3 mm at the bottom of the groove, which effectively prevents cracks at the bottom of the groove.

[0029] Furthermore, the second longitudinal tortuous groove has a width of 14-15mm and a depth of 15-16mm, descends in a funnel shape in the vertical direction, and has a circular arc transition with a radius of 3-3.5mm at the bottom of the groove, which effectively prevents cracks at the bottom of the groove.

[0030] Furthermore, the patterned blocks are hexagonal in shape, with each of the six corners having a rounded transition with a radius of 4-5mm, resulting in an aesthetically pleasing overall design while significantly enhancing the tire's grip.

[0031] Furthermore, the transverse groove is divided into an upper wide groove and a lower narrow groove, with the lower narrow groove located at the bottom of the upper wide groove. The upper wide groove has a width of 3-4 mm and a depth of 3-4 mm. The lower narrow groove has a width of 1-2 mm and a depth of 5-6 mm, with a rounded transition at the bottom of the groove having a radius of 0.5-1 mm. The internal angle at the transition point between the upper wide groove and the lower narrow groove has a rounded transition with a radius of 0.5-1 mm, while the external angle has a right-angle transition.

[0032] Furthermore, the transition between the upper wide groove and the second longitudinal zigzag groove is an inclined downward transition, and the positive angle at the transition is an obtuse angle; the lower narrow groove and the second longitudinal zigzag groove have an arc transition with a radius of 3-4mm.

[0033] Furthermore, the transition between the upper wide groove and the first longitudinal tortuous groove is an inclined downward transition, and the positive angle at the transition is an obtuse angle; the lower narrow groove and the first longitudinal tortuous groove have an arc transition with a radius of 2-3mm.

[0034] Furthermore, along the second longitudinal zigzag groove and the first longitudinal zigzag groove, there are six equally spaced protrusions, each 2.4 mm higher than the bottom of the groove, which are the wear indicators (7). The wear indicators are the same width as the groove surface, 10 mm long, and 2.4 mm deep, with a hollow circular hole in the center with a diameter of 3 mm. Tire wear indicators are a type of mark used to determine the degree of tire wear, and they are of great significance for the safe driving of vehicles and the service life of tires.

[0035] Furthermore, the tire shoulder is a closed type, which improves the rigidity of the shoulder tread pattern and effectively prevents uneven wear.

[0036] Furthermore, the underside tread grooves are evenly distributed under the tread shoulder, with a long side of 25-30mm, a short side of 10-13mm, and a groove depth of 2-3mm. The transition points are all made of arcs with a radius of 1-2mm, and the bottom of the grooves is also made of arcs with a radius of 1-2mm to improve heat dissipation in the shoulder and prevent shoulder cracking.

[0037] Furthermore, the tread block group and the tire shoulder are provided with multiple vent holes to facilitate venting during vulcanization, prevent air pockets from causing tread rounding corners and missing rubber on the tire sidewalls, promote rubber flow, and make the rubber vulcanization more uniform.

[0038] Compared with the prior art, the present invention has the following advantages:

[0039] (1) This utility model provides a tread pattern structure for a medium-to-short distance all-steel radial truck tire. The structure includes a tire tread and, from left to right, a shoulder groove, a shoulder, a second longitudinal zigzag groove, a tread block group, a first longitudinal zigzag groove, a tread block group, a second longitudinal zigzag groove, a shoulder, and a shoulder groove. The tread block group is composed of multiple tread blocks arranged circumferentially along the tire tread. There is a transverse groove between two adjacent tread blocks, which provides excellent traction and braking performance for the tire. The outermost apex of the tread block in the tread block group on one side of the first longitudinal zigzag groove is opposite to the transverse groove in the tread block group on one side of the first longitudinal zigzag groove. That is, the tread blocks in the two rows of tread block groups are staggered in the same direction along the tire tread, which makes the overall shape beautiful and greatly enhances the tire's grip.

[0040] (2) This utility model provides a tread pattern structure for a medium- and short-distance all-steel radial truck tire. The tread blocks in this structure are hexagonal in shape, and each of the six corners has a rounded transition with a radius of 4-5mm. The overall shape is beautiful, and the tire's grip is greatly enhanced.

[0041] (3) This utility model provides a tread pattern structure for a medium- and short-distance all-steel radial truck tire. The tire shoulder of this structure is a closed tire shoulder, which improves the rigidity of the shoulder tread strip and effectively prevents uneven wear.

[0042] (4) This utility model provides a tread pattern structure for a medium- and short-range all-steel radial truck tire. The first longitudinal zigzag groove descends in a funnel shape in the vertical direction and has a rounded transition at the bottom of the groove, which effectively prevents cracks at the bottom of the groove. The second longitudinal zigzag groove descends in a funnel shape in the vertical direction and has a rounded transition at the bottom of the groove, which effectively prevents cracks at the bottom of the groove.

[0043] (5) This utility model provides a tread pattern structure for a medium- and short-range all-steel radial truck tire. The shoulder grooves of this structure are evenly distributed under the shoulder of the tread, and the transition points are all rounded. The bottom of the grooves is rounded, which can improve heat dissipation in the shoulder and avoid shoulder cracking. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the tire tread pattern of this utility model;

[0045] Figure 2 This is a structural diagram of a single pitch of the tire tread pattern of this utility model.

[0046] In the diagram: 1-Tire tread; 2-Tread block; 21-Lateral groove; 3-Longitudinal zigzag groove; 31-First longitudinal zigzag groove; 32-Second longitudinal zigzag groove; 4-Shoulder; 5-Under-shoulder tread groove; 6-Exhaust vent; 7-Wear indicator. Detailed Implementation

[0047] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are implemented based on the technical solution of the present invention, providing detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0048] Example 1

[0049] Medium- and short-range all-steel radial truck tires are used on paved roads. The main quality defects of these tires are shoulder gaps, crown gaps, and poor wear resistance. The tires require high-quality tread patterns with low heat generation, good wear resistance, low noise, and low rolling resistance. Based on this, this invention proposes a tread pattern structure for medium- and short-range all-steel radial truck tires. The specific structure is shown in [details omitted]. Figure 1-2 The tire tread includes the underside tread groove 5, shoulder 4, second longitudinal zigzag groove 32, tread block group, first longitudinal zigzag groove 31, tread block group, second longitudinal zigzag groove 32, shoulder 4, and underside tread groove 5 arranged from left to right on the tire tread.

[0050] The tread block group is composed of multiple tread blocks 2 arranged circumferentially along the tire tread, and there is a lateral groove 21 between two adjacent tread blocks 2, which provides the tire with excellent traction and braking performance.

[0051] The outermost vertex of the tread block 2 in the tread block group set on one side of the first longitudinal zigzag groove 31 is opposite to the transverse groove 21 in the tread block group set on one side of the first longitudinal zigzag groove 31. That is, the tread blocks 2 in the two rows of tread block groups are staggered in the same direction along the tire tread, which makes the overall shape beautiful and greatly enhances the tire's grip.

[0052] In this embodiment, the tread pitch is 52 sections, and the tread is designed with three longitudinal zigzag grooves from the nine-part movable mold to the upper and lower side plates, which has lower rolling resistance and saves fuel.

[0053] In this embodiment, the first longitudinal tortuous groove 31 has a groove width of 13-14mm and a groove depth of 15-16mm. It descends in a funnel shape in the vertical direction, and the bottom of the groove has a circular arc transition with a radius of 2-3mm, which effectively prevents cracks at the bottom of the groove.

[0054] In this embodiment, the second longitudinal tortuous groove 32 has a groove width of 14-15mm and a groove depth of 15-16mm. It descends in a funnel shape in the vertical direction, and the bottom of the groove has an arc transition with a radius of 3-3.5mm, which effectively prevents cracks at the bottom of the groove.

[0055] In this embodiment, the patterned block is hexagonal in shape, with each of the six corners having a rounded transition with a radius of 4-5mm, resulting in an aesthetically pleasing overall design and significantly enhanced tire grip.

[0056] In this embodiment, the transverse groove 21 is divided into an upper wide groove and a lower narrow groove, with the lower narrow groove located at the bottom of the upper wide groove. The upper wide groove has a width of 3-4 mm and a depth of 3-4 mm. The lower narrow groove has a width of 1-2 mm and a depth of 5-6 mm, with a circular arc transition at the bottom of the groove with a radius of 0.5-1 mm. The internal angle at the transition point between the upper wide groove and the lower narrow groove has a circular arc transition with a radius of 0.5-1 mm, while the external angle has a right angle transition.

[0057] In this embodiment, the transition between the upper wide groove and the second longitudinal tortuous groove 32 is an inclined downward transition, and the positive angle of the transition is an obtuse angle; the lower narrow groove and the second longitudinal tortuous groove 32 have an arc transition with a radius of 3-4mm.

[0058] In this embodiment, the transition between the upper wide groove and the first longitudinal tortuous groove 31 is an inclined downward transition, and the positive angle of the transition is an obtuse angle; the lower narrow groove and the first longitudinal tortuous groove 31 have an arc transition with a radius of 2-3mm.

[0059] In this embodiment, along the second longitudinal zigzag groove 32 and the first longitudinal zigzag groove 31, there are six equally spaced protrusions, 2.4 mm higher than the bottom of the groove, which are wear indicators (7). The wear indicator is the same width as the groove surface, 10 mm long, and 2.4 mm deep, with a hollow circular hole with a diameter of 3 mm in the center. Tire wear indicators are a type of 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.

[0060] In this embodiment, the tire shoulder 4 is a closed tire shoulder, which improves the rigidity of the shoulder tread pattern and effectively prevents uneven wear.

[0061] In this embodiment, the under-shoulder tread grooves 5 are evenly distributed under the shoulder of the tread, with a long side of 25-30mm, a short side of 10-13mm, and a groove depth of 2-3mm. The transition points are all made of arcs with a radius of 1-2mm, and the bottom of the groove is also made of arcs with a radius of 1-2mm to improve heat dissipation in the shoulder and prevent shoulder cracks.

[0062] In this embodiment, multiple vent holes 6 are provided around the tread block group and the tire shoulder 4 to facilitate venting during vulcanization, prevent air pockets from causing tread rounded corners and missing rubber on the tire sidewall, promote rubber flow, and make the rubber vulcanization more uniform.

[0063] Example 2

[0064] like Figure 1 As shown, this embodiment proposes a tread pattern structure for a medium-to-short-range all-steel radial truck tire, including three longitudinal zigzag grooves 3 and tread blocks 2, as well as transverse grooves 21 located between the tread blocks 2, wear marks 7 between the longitudinal zigzag grooves 3, and shoulder grooves 5 evenly distributed on both sides under the shoulders.

[0065] The tire tread features a three-groove longitudinal zigzag design, consisting of a first longitudinal zigzag groove 31 and second longitudinal zigzag grooves 32 located on either side of the first longitudinal zigzag groove 31. The first longitudinal zigzag groove 31 has a width of 14mm and a depth of 15.5mm, descending in a funnel shape vertically, with a 2.4mm radius arc transition at the bottom. The second longitudinal zigzag groove 32 has a width of 15mm and a depth of 15.5mm, descending in a funnel shape vertically, with a 3.1mm radius semi-circular arc transition at the bottom, effectively preventing cracks at the bottom of the groove.

[0066] Two rows of hexagonal pattern blocks 2 are evenly distributed between the longitudinal zigzag grooves 3. The six corners of the pattern blocks 2 are all rounded with a radius of 5mm. The two rows of pattern blocks 2 are staggered in the same direction along the circumferential direction on both sides of the first longitudinal zigzag groove 31, which makes the overall shape beautiful and greatly enhances the tire's grip.

[0067] The tread pattern 2 has multiple transverse grooves 21 evenly distributed along the tire's axial direction. Each transverse groove 21 has a width of 4mm and a depth of 9mm. The groove depth descends vertically in a double-step pattern: the upper groove is 4mm wide and 3mm deep, while the lower groove is 1mm wide and 6mm deep, with a 0.5mm radius rounded transition at the bottom. The internal angles at the transition points between the upper and lower ends are rounded with a 0.5mm radius, while the external angles are right angles. This design provides excellent water drainage and heat dissipation performance for the tire.

[0068] The transition between the transverse groove 21 and the longitudinal zigzag grooves 3 on the left and right sides is an inclined downward transition, with the external angle of the horizontal groove surface being 109° inclined downward. The transition to the bottom of the first longitudinal zigzag groove 31 is an arc transition, with the arc transition to the bottom of the first longitudinal zigzag groove 31 having a radius of 2.44mm and the arc transition to the bottom of the second longitudinal zigzag grooves 32 on both sides having a radius of 3.14mm. The transition is smooth and fluid, with smooth and beautiful lines.

[0069] The tire tread is divided into 6 equal parts along the 3rd circumference of the tread grooves, with raised platforms 2.4mm above the bottom of the grooves, which are called wear indicators 7. The wear indicators are the same width as the groove surface, 10mm long, and 2.4mm deep, with a hollow circular hole with a diameter of 3mm in the center. Tire wear indicators are used to determine the degree of tire wear, and they are of great significance for safe driving and tire life.

[0070] The tire tread is composed of nine equal parts of a movable mold. The circumference of the movable mold is divided into nine equal parts, and the tread pattern has a total of 52 segments. The 52 segments are evenly divided into nine equal parts and arranged on the movable mold of the mold. Three longitudinal zigzag grooves 3 are distributed along the circumference of the tire tread. There is a first longitudinal zigzag groove 31 in the center and two second longitudinal zigzag grooves 32 on both sides. The bottom of the grooves is rounded, which provides good drainage and heat dissipation.

[0071] After adopting the tire tread structure of this utility model, indoor test mileage and outdoor actual vehicle mileage tests have confirmed that the medium and short distance all-steel radial truck tire of this utility model has low rolling resistance and saves fuel; the tread pattern of this utility model adopts a closed shoulder design, which improves the rigidity of the shoulder tread strips and effectively prevents uneven wear; the tread pattern is arranged in a regular pattern, so it can effectively reduce the noise of the tire during driving.

[0072] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A tread pattern structure for a medium-to-short-range all-steel radial truck tire, characterized in that, Including the tire tread, and from left to right, the under-shoulder tread groove (5), shoulder (4), second longitudinal zigzag groove (32), tread block group, first longitudinal zigzag groove (31), tread block group, second longitudinal zigzag groove (32), shoulder (4), and under-shoulder tread groove (5) are arranged on the tire tread. The pattern block group is composed of multiple pattern blocks (2) arranged circumferentially along the tire tread, and there is a transverse groove (21) between two adjacent pattern blocks (2); The outermost vertex of the pattern block (2) in the pattern block group set on one side of the first longitudinal zigzag groove (31) is opposite to the transverse groove (21) in the pattern block group set on one side of the first longitudinal zigzag groove (31).

2. The tread pattern structure of a medium-to-short-range all-steel radial truck tire according to claim 1, characterized in that, The first longitudinal tortuous groove (31) has a width of 13-14 mm and a depth of 15-16 mm. It descends in a funnel shape in the vertical direction and has a circular arc transition with a radius of 2-3 mm at the bottom.

3. The tread pattern structure of a medium-to-short-range all-steel radial truck tire according to claim 1, characterized in that, The second longitudinal tortuous groove (32) has a width of 14-15 mm and a depth of 15-16 mm. It descends in a funnel shape in the vertical direction and has a circular arc transition with a radius of 3-3.5 mm at the bottom.

4. The tread pattern structure of a medium-to-short-range all-steel radial truck tire according to claim 1, characterized in that, The patterned blocks are hexagonal in shape, with each of the six corners having a rounded transition with a radius of 4-5 mm.

5. The tread pattern structure of a medium-to-short-range all-steel radial truck tire according to claim 1, characterized in that, The transverse ditch (21) is divided into a wide ditch at the top and a narrow ditch at the bottom, with the narrow ditch at the bottom located at the bottom of the wide ditch at the top. The width of the upper wide groove is 3-4mm, and the depth is 3-4mm; The width of the lower narrow groove is 1-2mm, the depth is 5-6mm, and the bottom of the groove has a circular arc transition with a radius of 0.5-1mm. The inner corner at the transition between the upper wide groove and the lower narrow groove has a rounded transition with a radius of 0.5-1mm, while the outer corner has a right-angle transition.

6. The tread pattern structure of a medium-to-short-range all-steel radial truck tire according to claim 5, characterized in that, The transition between the upper wide groove and the second longitudinal tortuous groove (32) is an inclined downward transition, and the positive angle of the transition is an obtuse angle; the lower narrow groove and the second longitudinal tortuous groove (32) have an arc transition with a radius of 3-4mm.

7. The tread pattern structure of a medium-to-short-range all-steel radial truck tire according to claim 5, characterized in that, The transition between the upper wide groove and the first longitudinal tortuous groove (31) is an inclined downward transition, and the positive angle of the transition is an obtuse angle; the lower narrow groove and the first longitudinal tortuous groove (31) have an arc transition with a radius of 2-3mm.

8. The tread pattern structure of a medium-to-short-range all-steel radial truck tire according to claim 1, characterized in that, The shoulder (4) is a closed shoulder.

9. The tread pattern structure of a medium-to-short-range all-steel radial truck tire according to claim 1, characterized in that, The underside tread grooves (5) are evenly distributed under the tread shoulder, with a long side of 25-30mm, a short side of 10-13mm, and a groove depth of 2-3mm. The transition points are all made of arcs with a radius of 1-2mm, and the bottom of the groove is made of arcs with a radius of 1-2mm.

10. The tread pattern structure of a medium-to-short-range all-steel radial truck tire according to claim 1, characterized in that, Multiple vent holes (6) are provided around the tread block group and the shoulder (4).

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