Tread pattern structure of all-steel truck tubeless radial tire

Abstract

The utility model relates to a tread pattern structure of an all-steel truck tubeless radial tire, which belongs to the field of tires and comprises a tire tread and longitudinal zigzag pattern grooves arranged at the center of a tire crown and distributed along the circumferential direction of the tire tread. The transverse pattern parts, the longitudinal straight pattern grooves, the shoulder pattern parts and the under-shoulder pattern grooves are distributed on the two sides of the longitudinal zigzag pattern grooves in a central symmetry manner. The utility model provides a tread pattern structure of an all-steel truck tubeless radial tire, which comprises a tire tread and longitudinal zigzag pattern grooves which are arranged at the center of a tire crown and are distributed along the circumferential direction of the tire tread, the transverse pattern parts, the longitudinal straight pattern grooves, the shoulder pattern parts and the under-shoulder pattern grooves are distributed on the two sides of the longitudinal zigzag pattern grooves in a central symmetry mode, so that the tire with the pattern structure has excellent drainage performance and low rolling resistance, and fuel oil is saved.

Description

Technical Field

[0001] The utility model relates to the field of tires, in particular to a tread pattern structure of an all-steel load-bearing tubeless radial tire. Background Art

[0002] Tires are donut-shaped elastic rubber products used on various vehicles and machinery for grounded rolling. Typically mounted on metal rims, they support the vehicle's body, cushion external impacts, maintain contact with the road, and ensure vehicle performance. Tires often operate under complex and demanding conditions, enduring deformation, loads, forces, and high and low temperatures. Therefore, they must possess high load-bearing, traction, and cushioning properties. They must also possess high wear and flex resistance, as well as low rolling resistance and heat buildup. Half of the world's rubber consumption is used in tire production, demonstrating the sheer volume of rubber consumed by tires.

[0003] Tire tread designs vary widely, each designed based on suitability for different uses and road conditions. These factors should also be considered when selecting a tire. Tire tread patterns play a crucial role in driving. A well-designed tread not only effectively saves fuel but also reduces noise while driving. It also enhances driving force, braking force, and traction on harsh and slippery roads, thereby improving driving safety.

[0004] There are generally several types of tire patterns:

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

[0006] Features: excellent operating stability, low rotation resistance, low noise, especially excellent drainage performance, not easy to slip laterally.

[0007] Applicable to: vehicles used on flat roads: cars, trucks, and even airplanes.

[0008] Disadvantages: Poor drive and traction.

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

[0010] Features: The transverse groove pattern has excellent driving force, braking force and traction, and its wear resistance is excellent.

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

[0012] Disadvantages: loud noise.

[0013] (3) Vertical and horizontal groove pattern: Vertical and horizontal groove pattern is also called comprehensive pattern, which is a combination of straight groove and horizontal groove pattern design.

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

[0015] Applicable to: bad road conditions.

[0016] Disadvantages: prone to abnormal wear.

[0017] (4) Block pattern: The pattern is arranged regularly in blocks.

[0018] Features: good driving force and braking force, providing power to drive the car forward.

[0019] Applicable to: snowy, muddy and other roads.

[0020] Disadvantages: poor wear resistance and short mileage life.

[0021] The main metric all-steel load-bearing tubeless radial tires on the market are used on roads above paved roads. The main quality defects of these tires are shoulder and crown voids and poor wear resistance. The tires have high requirements for tread patterns, low heat generation, good wear resistance, low noise, low rolling resistance, and a novel appearance. Utility Model Content

[0022] The purpose of the present utility model is to provide a tread pattern structure of an all-steel load-bearing tubeless radial tire in order to overcome at least one of the above-mentioned defects in the prior art.

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

[0024] A tread pattern structure of an all-steel load-bearing tubeless radial tire includes a tire tread, a longitudinal zigzag groove arranged at the center of the tire crown and distributed circumferentially along the tire tread, and a transverse pattern portion, a longitudinal straight pattern groove, a shoulder pattern portion, and a shoulder groove that are centrally and symmetrically distributed on both sides of the longitudinal zigzag groove.

[0025] Furthermore, the longitudinal zigzag groove has a groove width of 12-13 mm, a groove depth of 18-19 mm, and a circular arc transition with a radius of 1-2 mm at the inner corner of the groove bottom.

[0026] Furthermore, the longitudinal straight groove has a groove width of 12-13 mm, a groove depth of 18-19 mm, and a circular arc transition with a radius of 1-2 mm at the inner corner of the groove bottom.

[0027] Furthermore, a V-shaped stone-removing block is provided at the bottom of the longitudinal zigzag groove, and the V-shaped stone-removing block is provided at the turning point of the longitudinal zigzag groove, and the turning point of the V-shaped stone-removing block is an obtuse angle.

[0028] Furthermore, the row of stones arranged on the longitudinal straight groove includes a first row of stone groups and a second row of stone groups; the first row of stone groups includes two first row stones of the same length, the second row of stone groups includes two second row stones of the same length, and the length of the first row of stones is greater than the length of the second row of stones; the first row of stone groups and the second row of stone groups are evenly and alternately distributed on the bottom of the longitudinal straight groove along the circumference of the longitudinal straight groove.

[0029] Furthermore, the transverse pattern portion includes two rows of pattern block groups evenly distributed along the circumference of the tire tread; there is a Z-shaped zigzag groove between the two rows of pattern block groups, and the bottom of the Z-shaped zigzag groove has an arc transition; there is an S-shaped groove between two adjacent pattern blocks in each row of pattern block groups, and the bottom of the S-shaped groove has an arc transition.

[0030] Furthermore, the pattern blocks of the two rows of pattern block groups are polygonal pattern blocks, the angles corresponding to the vertices on both sides of the pattern blocks along the radial direction of the tire tread are both obtuse angles, and the two side edges of the pattern blocks along the circumferential direction of the tire tread are S-shaped.

[0031] Furthermore, the Z-shaped zigzag groove has a width of 2-3 mm, a depth of 18-19 mm, and an obtuse angle at the turning point; the S-shaped groove has a width of 0.8-1 mm, and a depth of 16-17 mm.

[0032] Furthermore, the shoulder pattern portion is composed of a plurality of shoulder pattern blocks distributed circumferentially along the tire tread; there is an oblique groove between two adjacent shoulder pattern blocks, the groove width of the oblique groove is 9-10 mm, and the groove depth is 18-19 mm; the shoulder pattern blocks are provided with transverse pattern grooves, the groove width of the transverse pattern grooves is 0.8-1 mm, and the groove depth is 2-3 mm.

[0033] Furthermore, exhaust holes are distributed around the pattern blocks on the transverse pattern portion and the shoulder pattern portion and pass through the mold.

[0034] Compared with the prior art, the utility model has the following advantages:

[0035] (1) The utility model provides a tread pattern structure of an all-steel load-bearing tubeless radial tire, which includes a tire tread, a longitudinal zigzag groove arranged at the center of the tire crown and distributed circumferentially along the tire tread, and a transverse pattern portion, a longitudinal straight pattern groove, a shoulder pattern portion and a shoulder groove symmetrically distributed on both sides of the longitudinal zigzag groove. The tire having the pattern structure has excellent drainage performance, low rolling resistance and fuel saving.

[0036] (2) The utility model provides a tread pattern structure of an all-steel load-bearing tubeless radial tire, in which the bottoms of the longitudinal zigzag grooves and the longitudinal straight grooves are provided with stone removal blocks, which effectively prevent stones from getting stuck in the tread and improve the tire's grip and braking performance;

[0037] (3) The utility model provides a tread pattern structure of an all-steel load-bearing tubeless radial tire, in which the bottoms of the longitudinal zigzag grooves and the longitudinal straight grooves have arc transitions, which effectively prevent cracks in the groove bottoms.

[0038] (4) The utility model provides a tread pattern structure of an all-steel load-bearing tubeless radial tire, wherein the transverse pattern portion of the structure includes two rows of pattern block groups uniformly distributed along the circumference of the tire tread, wherein a Z-shaped zigzag groove is provided between the two rows of pattern block groups, and the bottom of the Z-shaped zigzag groove has an arc transition; and an S-shaped groove is provided between two adjacent pattern blocks in each row of the pattern block group, and the bottom of the S-shaped groove has an arc transition, which helps to enhance the braking performance of the tire, reduce heat generation, and improve handling and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a schematic structural diagram of the tread pattern of the middle tire in the present invention;

[0040] Figure 2 This is a schematic structural diagram of one pitch of the tire tread pattern in the present invention;

[0041] The numbers in the figure are as follows: 1-tire tread; 2-transverse pattern portion; 21-middle pattern block; 22-side pattern block; 3-longitudinal pattern groove; 31-longitudinal zigzag pattern groove; 32-longitudinal straight pattern groove; 41-V-shaped stone removal block; 42-rectangular stone removal block; 43-Z-shaped zigzag groove; 51-oblique groove; 52-S-shaped groove; 53-transverse pattern groove; 6-shoulder pattern block; 7-exhaust hole; 8-under-shoulder pattern groove. DETAILED DESCRIPTION

[0042] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0043] Any features such as component models, material names, connection structures, control methods, etc. that are not clearly stated in this technical solution shall be deemed as common technical features disclosed in the prior art.

[0044] In the description of the present invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined. Furthermore, the terms "mounted," "connected," and "connected" should be interpreted broadly, encompassing, for example, fixed, removable, or integral connections; bolted or welded; directly or indirectly through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model on a case-by-case basis.

[0046] Example 1

[0047] Tubeless radial tires are driven on roads above paved roads. The main quality defects of tires are shoulder hollows, crown hollows and poor wear resistance. Tires have high requirements for tread patterns and should have low heat generation and good wear resistance, low noise and low rolling resistance. Based on this, this embodiment provides a tread pattern structure of an all-steel load-bearing tubeless radial tire. The specific structure is shown in Figure 1-2 , including a tire tread 1, a longitudinal zigzag groove 31 arranged at the center of the crown and distributed circumferentially along the tire tread 1, and a transverse pattern portion 2, a longitudinal straight groove 32, a shoulder pattern portion 6 and a shoulder groove 8 that are centrally symmetrically distributed on both sides of the longitudinal zigzag groove 31.

[0048] In this embodiment, the longitudinal zigzag groove 31 has a groove width of 12-13 mm, a groove depth of 18-19 mm, and a circular arc transition with a radius of 1-2 mm at the inner corner of the groove bottom.

[0049] In this embodiment, the longitudinal straight groove 32 has a groove width of 12-13 mm, a groove depth of 18-19 mm, and a circular arc transition with a radius of 1-2 mm at the inner corner of the groove bottom.

[0050] In this embodiment, a V-shaped stone-removing block 41 is provided at the bottom of the longitudinal zigzag groove 31 . The V-shaped stone-removing block 41 is provided at the turning point of the longitudinal zigzag groove 31 , and the turning point of the V-shaped stone-removing block 41 is an obtuse angle.

[0051] In this embodiment, the rectangular row of stones 42 arranged on the longitudinal straight groove 32 includes a first row of stone groups and a second row of stone groups; the first row of stone groups includes two first row stones of the same length, and the second row of stone groups includes two second row stones of the same length, and the length of the first row of stones is greater than the length of the second row of stones; the first row of stone groups and the second row of stone groups are evenly and alternately distributed on the bottom of the longitudinal straight groove 32 along the circumference of the longitudinal straight groove 32.

[0052] In this embodiment, the transverse pattern portion 2 includes two rows of pattern block groups uniformly distributed along the circumference of the tire tread 1; there is a Z-shaped zigzag groove 43 between the two rows of pattern block groups, and the bottom of the Z-shaped zigzag groove 43 has an arc transition; there is an S-shaped groove 52 between two adjacent pattern blocks in each row of pattern block groups, and the bottom of the S-shaped groove 52 has an arc transition.

[0053] In this embodiment, the blocks in the two rows of the pattern block groups are polygonal blocks, the angles corresponding to the vertices on both sides of the pattern blocks along the radial direction of the tire tread 1 are both obtuse angles, and the two sides of the pattern blocks along the circumferential direction of the tire tread 1 are S-shaped.

[0054] In this embodiment, the Z-shaped zigzag groove 43 has a width of 2-3 mm, a depth of 18-19 mm, and an obtuse angle at the turning point; the S-shaped groove 52 has a width of 0.8-1 mm, and a depth of 16-17 mm.

[0055] In this embodiment, the shoulder pattern portion 6 is composed of a plurality of shoulder pattern blocks 6 distributed circumferentially along the tire tread 1; an oblique groove 51 is provided between two adjacent shoulder pattern blocks 6, and the groove width of the oblique groove 51 is 9-10 mm and the groove depth is 18-19 mm; a transverse pattern groove 53 is provided on the shoulder pattern block 6, and the groove width of the transverse pattern groove 53 is 0.8-1 mm and the groove depth is 2-3 mm.

[0056] In this embodiment, the vent holes (6) are distributed around the pattern blocks and pass through the mold.

[0057] Example 2

[0058] like Figure 1 As shown, this embodiment proposes a tread pattern structure of an all-steel load-bearing tubeless radial tire, including three longitudinal main grooves 3 and a transverse pattern portion 2, as well as a Z-shaped zigzag groove 43 and an S-shaped groove 52 located between the transverse pattern portion 2, and shoulder pattern blocks 6 located at both shoulders, and a shoulder pattern groove 8.

[0059] The described tire tread is designed with three longitudinal grooves (3). There is a longitudinal zigzag tread groove 31 in the middle, and two longitudinal straight tread grooves 32 on both sides. It has excellent drainage performance, low rolling resistance, and saves fuel. Drain stones are evenly distributed at the bottom of the three longitudinal main grooves 3, effectively preventing stones from getting stuck in the tread and improving the tire's grip and braking performance. Two double-row transverse tread parts 2 are distributed circumferentially along the tire tread between the three longitudinal main grooves 3. The tread blocks in the transverse tread part 2 are irregular polygons. There is a Z-shaped zigzag groove 43 at the longitudinal center position of the double-row polygons, providing excellent heat dissipation and drainage performance for the tire. All transitions at the bottom of the tread grooves are arc transitions. Multiple S-shaped grooves 52 are evenly distributed circumferentially between the tread blocks, with a groove depth of 16.5 mm, which helps enhance the tire's braking performance, reduce heat generation, and improve handling and safety.

[0060] The tread pitch is 53 pitches. In the direction from the nine-equivalent flexible mold to the upper and lower side plates, the tread has longitudinal tread grooves 3, with low rolling resistance and fuel savings. The width of the middle longitudinal zigzag tread groove 31 is 13 mm, and the groove depth is 18.5 mm, sloping downwards. The corner at the bottom of the groove has an arc transition with a radius of 2 mm. The outer longitudinal straight tread groove 32 is a straight groove, with a width of 13 mm and a groove depth of 18.5 mm, sloping downwards. The corner at the bottom of the groove has an arc transition with a radius of 2 mm, effectively preventing cracks at the bottom of the groove.

[0061] V-shaped drain stones 41 with a width of 4 mm and a height of 2.5 mm are evenly distributed at the bottom of the middle longitudinal zigzag tread groove 31 of the tread. The V-shaped drain stones 41 are evenly distributed along the zigzag direction of the longitudinal zigzag tread groove 31, with a turning angle of 137°, a longitudinal long side length of 4.8 mm, and a short side length of 4.2 mm. Rectangular drain stones 42 with a width of 2.5 mm and a height of 2.5 mm are evenly distributed at the bottom of the two outer longitudinal straight tread grooves 32. The lengths of the rectangular drain stones 42 are 10 mm and 6 mm. Two drain stones of the same length form a group, and each group is evenly distributed alternately along the bottom direction of the straight groove.

[0062] Two double-row transverse tread parts 2 are distributed circumferentially along the tire tread between the three longitudinal main grooves 3. The transverse tread part 2 consists of an intermediate tread block 21 and side tread blocks 22 that are irregular polygons. There is a Z-shaped zigzag groove 43 between the intermediate tread block 21 and the side tread blocks 22, providing excellent heat dissipation and drainage performance for the tire. The intermediate tread block 21 has obtuse angles on both the left and right sides and is a polygon similar to an S shape on the top and bottom. The angles of the left and right outer sides near the Z-shaped zigzag groove 43 are 104°, and the angles of the inner sides near the longitudinal zigzag tread groove 31 are 137°. One of the angles on both sides of the side tread block 22 near the intermediate tread block 21 is 104°, and the other side is in the shape of "冖". The top and bottom of the side tread block 22 are approximately S-shaped. The two rows of tread blocks are symmetric about the longitudinal center line of the tread and are distributed with an offset up and down, increasing the aesthetics of the tire and improving wear resistance.

[0063] A Z-shaped zigzag groove 43, 3mm wide and 18.5mm deep, with a 104° angle at the turning point, is located between the center and side tread blocks 21 and 22, providing excellent heat dissipation and drainage. Multiple S-shaped grooves 52, 0.8mm wide and 16.5mm deep, are evenly distributed around the lateral tread portion 2, enhancing braking performance, reducing heat generation, and improving handling and safety.

[0064] Transverse grooves 53 are located between the shoulder blocks 6 on both sides of the tread. These grooves are 0.8mm wide and 3mm deep, extending all the way down to the shoulder. These shoulder blocks 6 connect to the adjacent longitudinal straight grooves 32 at zigzag angles, with each shoulder block 6 protruding two sharp corners toward the adjacent longitudinal straight grooves 32, creating a beautiful transition.

[0065] Multiple shoulder blocks 6 are evenly distributed on both sides of the tread. Between these shoulder blocks 6 are diagonal grooves 51, each 10mm wide and 18.5mm deep. The center section of the diagonal grooves 51 is 30.3mm long and 5mm deep. The depth of the grooves 51 connecting the vertical straight grooves 32 on either side of the center section and the shoulder below is 18.5mm. The three sections connect in a circular arc, creating a smooth transition and elegant lines.

[0066] There are multiple 0.8mm diameter vent holes 7 distributed around the tread blocks to facilitate vulcanization.

[0067] Exhaust air in time to prevent air pockets from causing rounded corners in the tread and rubber deficiency on the sidewalls, promote rubber flow, and make rubber vulcanization more uniform.

[0068] There are multiple square shallow grooves 8 evenly distributed under the two shoulders of the tire tread. The groove width is 14.73mm and the groove depth is 5mm. The turning transitions all use arc transitions with a radius of 3mm, and the groove bottom uses an arc transition with a radius of 3mm to improve shoulder heat dissipation and avoid shoulder cracks.

[0069] Indoor mileage testing and outdoor actual vehicle loading mileage tests using this new tire's tread structure confirm that this metric all-steel, load-bearing, tubeless radial tire offers low rolling resistance and fuel efficiency. The symmetrical, staggered design of the tread blocks enhances braking performance, reduces heat generation, and improves handling and safety. The wear-resistant tread compound increases mileage and is suitable for highways, national highways, and provincial roads.

[0070] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation thereto. Any person skilled in the art may utilize the above disclosure to modify or remodel the present invention into equivalent embodiments. However, any simple modification, equivalent variation, or modification of the above embodiment that does not depart from the technical content of the present invention and is based on the technical essence of the present invention shall still fall within the scope of protection of the present invention.

Claims

1. A tread pattern structure of an all-steel load-bearing tubeless radial tire, characterized in that: The tire comprises a tire tread (1), a longitudinal zigzag groove (31) arranged at the center of the tire crown and distributed circumferentially along the tire tread (1), and a transverse pattern portion (2), a longitudinal straight pattern groove (32), a shoulder pattern portion, and a shoulder pattern groove (8) centrally and symmetrically distributed on both sides of the longitudinal zigzag groove (31).

2. The tread pattern structure of the all-steel load-bearing tubeless radial tire according to claim 1, characterized in that: The longitudinal zigzag groove (31) has a groove width of 12-13 mm, a groove depth of 18-19 mm, and a circular arc transition with a radius of 1-2 mm at the inner corner of the groove bottom.

3. The tread pattern structure of the all-steel load-bearing tubeless radial tire according to claim 1, characterized in that: The longitudinal straight groove (32) has a groove width of 12-13 mm, a groove depth of 18-19 mm, and a circular arc transition with a radius of 1-2 mm at the inner corner of the groove bottom.

4. The tread pattern structure of the all-steel load-bearing tubeless radial tire according to claim 1, characterized in that: A V-shaped stone-removing block (41) is provided at the bottom of the longitudinal zigzag groove (31), and the V-shaped stone-removing block (41) is provided at the turning point of the longitudinal zigzag groove (31), and the turning point of the V-shaped stone-removing block (41) is an obtuse angle.

5. The tread pattern structure of the all-steel load-bearing tubeless radial tire according to claim 1, characterized in that: The rectangular row of stones (42) arranged on the longitudinal straight groove (32) includes a first row of stone groups and a second row of stone groups; The first row of stones comprises two first-row stones of the same length, the second row of stones comprises two second-row stones of the same length, and the length of the first row of stones is greater than the length of the second row of stones; The first row of stone groups and the second row of stone groups are evenly and alternately distributed on the bottom of the longitudinal straight groove (32) along the circumference of the longitudinal straight groove (32).

6. The tread pattern structure of the all-steel load-bearing tubeless radial tire according to claim 1, characterized in that: The transverse pattern portion (2) comprises two rows of pattern block groups evenly distributed along the circumference of the tire tread (1); There is a Z-shaped zigzag groove (43) between the two rows of pattern block groups, and the bottom of the Z-shaped zigzag groove (43) has an arc transition; An S-shaped groove (52) is provided between two adjacent pattern blocks in each row of the pattern block groups, and the bottom of the S-shaped groove (52) has an arc transition.

7. The tread pattern structure of the all-steel load-bearing tubeless radial tire according to claim 6, characterized in that: The pattern blocks of the two rows of pattern block groups are polygonal pattern blocks, the angles corresponding to the vertices on both sides of the pattern blocks along the radial direction of the tire tread (1) are both obtuse angles, and the two side edges of the pattern blocks along the circumferential direction of the tire tread (1) are S-shaped.

8. The tread pattern structure of the all-steel load-bearing tubeless radial tire according to claim 6, characterized in that: The Z-shaped zigzag groove (43) has a groove width of 2-3 mm, a groove depth of 18-19 mm, and an obtuse angle at the turning point; the S-shaped groove (52) has a groove width of 0.8-1 mm, and a groove depth of 16-17 mm.

9. The tread pattern structure of the all-steel load-bearing tubeless radial tire according to claim 1, characterized in that: The shoulder pattern portion is composed of a plurality of shoulder pattern blocks (6) distributed along the circumference of the tire tread (1); An oblique groove (51) is provided between two adjacent shoulder pattern blocks (6), wherein the width of the oblique groove (51) is 9-10 mm and the depth is 18-19 mm; The shoulder pattern block (6) is provided with a transverse pattern groove (53), and the transverse pattern groove (53) has a groove width of 0.8-1 mm and a groove depth of 2-3 mm.

10. The tread pattern structure of the all-steel load-bearing tubeless radial tire according to claim 1, characterized in that: Vent holes (7) are distributed around the pattern blocks of the transverse pattern portion (2) and the shoulder pattern portion and pass through the mold.

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