Tread pattern structure of heavy load all-steel radial tire
By designing the tread pattern structure of heavy-duty all-steel radial tires, combining longitudinal straight grooves, zigzag grooves, and anti-stone steps, the problems of tire stone trapping and uneven grip were solved, improving the tire's load-bearing capacity and handling, and enhancing its impact resistance and aesthetics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DOUBLE COIN GRP JIANGSU TIRE
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-26
Smart Images
Figure CN224408824U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile tire tread technology, specifically a tread pattern structure for a heavy-duty all-steel radial tire. Background Technology
[0002] In recent years, with the rapid development of transportation vehicles, consumers' demand for tires has been increasing, and their requirements for various tire performance aspects have become more stringent. For example, consumers expect tires to have higher load-bearing capacity, better heat dissipation, higher wear resistance, and better anti-skid performance.
[0003] Some tires on the market still have some degree of stone trapping issues. This is because the tire tread design did not fully consider the risk of stones trapping in the tread grooves or did not have an effective anti-stone trapping structure. As a result, it is not easy to throw stones out during driving, causing stones to get stuck at the bottom of the grooves. The stones will be repeatedly squeezed during driving, which may damage the rubber at the bottom of the grooves, leading to damage such as cracks and bulges, shortening the normal service life of the tire. In addition, some tire tread structures on the market cannot balance the dry and wet grip performance of the tire, and due to unreasonable heat dissipation hole design, shoulder gaps may occur during long-term high-speed driving. Therefore, the tire's service life is reduced and its application range is severely limited.
[0004] Based on this, this application proposes a new tread pattern structure for heavy-duty all-steel radial tires. Summary of the Invention
[0005] The purpose of this utility model is to provide a tread pattern structure for a heavy-duty all-steel radial tire, which is aesthetically pleasing, improves the tire's load-bearing capacity, ensures excellent drainage and grip performance, reduces the risk of slippage, and enhances the vehicle's handling and stability on wet and slippery roads. It also solves current tire problems related to grip, drainage, uneven wear, shoulder gaps, and stone trapping.
[0006] To solve the above technical problems, this utility model provides a tread pattern structure for a heavy-duty all-steel radial tire, including two longitudinal straight grooves and two zigzag grooves extending circumferentially along the tread. The two zigzag grooves are located between the two longitudinal straight grooves. Anti-stone steps are provided above the bottom of both the two longitudinal straight grooves and the two zigzag grooves. A central tread strip is formed between the two zigzag grooves. The central tread strip is divided into several central tread blocks along the circumferential direction of the tread by several first oblique wavy steel sheets. Each central tread block is provided with a longitudinally reversed S-shaped steel sheet.
[0007] Each of the zigzag grooves and the adjacent longitudinal straight grooves are formed with a crown pattern strip. Each crown pattern strip is divided into several crown pattern blocks along the circumferential direction of the tread by several second oblique wavy steel plates. Each crown pattern block is provided with a first oblique steel plate.
[0008] Each longitudinal groove has a shoulder tread strip on the side away from the zigzag groove. Each shoulder tread strip has several diamond-shaped heat dissipation holes on its outer side. Each shoulder tread strip is divided into several shoulder tread blocks along the circumferential direction of the tread by several second oblique steel plates on the side near the longitudinal groove. The other side of each shoulder tread strip away from the longitudinal groove is a single piece.
[0009] Furthermore, each of the longitudinal straight grooves has a variable-angle groove wall and a bottom anti-stone step structure. Along the depth direction of the groove, a layer of anti-stone steps is provided at the bottom of the groove, and the anti-stone steps are located at 3 / 5 of the groove depth. Along the depth direction of the groove, the angle between the groove wall above the anti-stone step and the tread plane is continuously changing, ranging from 97° to 117°. Along the depth direction of the groove, the groove wall below the anti-stone step is vertically downward, and the bottom of the groove is a full arc.
[0010] Furthermore, each of the aforementioned meandering grooves is a structure with variable-angle groove walls and anti-stone steps at the bottom. Along the depth direction of the groove, an anti-stone step is provided at the bottom of the groove, and the anti-stone step is located at 3 / 5 of the groove depth. Along the depth direction of the groove, the angle between the groove wall above the anti-stone step and the tread plane is continuously changing, ranging from 101° to 117°. Along the depth direction of the groove, the groove wall below the anti-stone step is vertically downward, and the bottom of the groove is a full arc.
[0011] Furthermore, several of the first oblique wavy steel sheets are parallel to each other and equidistantly distributed along the circumference of the tire tread, dividing the central tread strip into several central tread blocks of the same size.
[0012] Furthermore, the reverse S-shaped steel strips on several of the central tread blocks are distributed at equal intervals along the circumference of the tire tread, each reverse S-shaped steel strip is located in the middle of the central tread block, and the two ends of the reverse S-shaped steel strip are not connected to the adjacent first oblique wavy steel strip.
[0013] Furthermore, several second oblique wavy steel sheets are parallel to each other and equidistantly distributed along the circumference of the tire tread, dividing the crown pattern strips into several crown pattern blocks of the same size along the circumference of the tire tread.
[0014] Furthermore, the adjacent first oblique steel sheets are arranged in parallel, and the two ends of the first oblique steel sheets are respectively connected to the adjacent longitudinal straight groove and the tortuous groove, and each crown pattern block is divided into two pattern blocks of the same size.
[0015] Furthermore, the angle between the first inclined steel sheet and the horizontal direction is 10°±5°.
[0016] Furthermore, the adjacent second oblique steel plates are arranged in parallel and form an angle of 10°±5° with the horizontal direction.
[0017] Furthermore, the anti-stone step and the upper ditch wall have a rounded transition with a radius of 1.5mm.
[0018] The beneficial effects of this utility model are:
[0019] 1. The tread pattern structure of the heavy-duty all-steel radial tire of this utility model has a beautiful and elegant appearance, improves the tire's load-bearing capacity, and ensures excellent drainage and grip performance, reduces the risk of slippage, improves the vehicle's handling and stability on wet and slippery roads, and solves the current problems of tire grip, drainage, uneven wear, and shoulder gap.
[0020] Specifically, the design of two longitudinal straight grooves and two zigzag grooves enhances the tire driving force during vehicle operation and provides excellent drainage performance, which can quickly drain water between the tire and the ground, reduce the risk of slipping, and improve the vehicle's handling and stability on wet and slippery roads.
[0021] The design of the first oblique wave-shaped steel sheet, the second oblique wave-shaped steel sheet, the first oblique steel sheet and the second oblique steel sheet enhance the tire's grip performance. Combined with the longitudinally set reverse S-shaped steel sheet, the tire has a certain anti-skid performance and exhibits stable handling performance on wet and slippery roads, making driving safer and more reliable.
[0022] The integrated design of the shoulder tread strip enhances the uniformity of ground pressure distribution, improves shoulder rigidity and aesthetics, effectively prevents the tread blocks from creeping during driving, minimizes tread block deformation, thereby reducing rolling resistance and reducing uneven tire wear. Combined with the diamond-shaped heat dissipation holes on the shoulder, it reduces heat generation on the tire shoulder, thus reducing the proportion of shoulder gaps that are prone to occur during long-term high-speed driving, and the overall structure is more aesthetically pleasing.
[0023] 2. This utility model utilizes a variable-angle trench wall structure with longitudinal straight trenches and tortuous trenches, plus a trench bottom anti-stone step structure. The anti-stone step can form a barrier, restricting stones from continuing to penetrate to the bottom of the trench and preventing stones from making full contact with the trench bottom, thereby damaging the trench bottom rubber. The variable-angle trench wall makes it easier for stones to be discharged, effectively reducing the phenomenon of stones getting stuck, improving the stone discharge performance of the tire, and enhancing the tire's impact resistance and puncture resistance.
[0024] 3. The central tread block, crown tread block, and shoulder tread block of this utility model are all arranged in a staggered manner, which can disperse the vibration frequency generated when the tread block contacts the ground, avoid noise superposition, thereby reducing tire noise during driving and improving driving comfort.
[0025] 4. This utility model features a design where each reverse S-shaped steel sheet is located in the middle of the central pattern block, and the two ends of the reverse S-shaped steel sheet are not connected to the adjacent first oblique wave-shaped steel sheet. This design can increase tire grip and provide a certain degree of anti-skid effect through the longitudinally arranged reverse S-shaped steel sheets, while also ensuring a certain degree of aesthetics.
[0026] 5. This utility model uses a first oblique wavy steel sheet, a second oblique wavy steel sheet, and a first oblique steel sheet and a second oblique steel sheet, which are distributed in different positions in a staggered manner, to break the water film more efficiently, allowing the tire to contact the ground more directly, increasing friction and reducing slippage.
[0027] 6. The first oblique wave-shaped steel sheet, the second oblique wave-shaped steel sheet, and the second oblique steel sheet of this utility model adopt steel sheet structures with different depths. This design can not only ensure the rigidity of each tread block and reduce the creep of the tread block, but also ensure the tire's grip through the combination of the above steel sheets in the later stages of tire wear. Attached Figure Description
[0028] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0029] Figure 1 This is a schematic diagram of the tread pattern structure of the heavy-duty all-steel radial tire of this utility model;
[0030] Figure 2 yes Figure 1 A sectional view of line A-A';
[0031] Figure 3 yes Figure 1 A sectional view of line B-B';
[0032] Figure 4 yes Figure 1 A cross-sectional view of C-C';
[0033] Figure 5 yes Figure 1 Sectional view of D-D';
[0034] Figure 6 yes Figure 1 Sectional view of E-E';
[0035] In the diagram: 1-longitudinal straight groove, 2-zigzag groove, 3-central patterned strip, 4-first oblique wavy steel sheet, 5-central patterned block, 6-reverse S-shaped steel sheet, 7-crown patterned strip, 8-second oblique wavy steel sheet, 9-crown patterned block, 10-first oblique steel sheet, 11-shoulder patterned strip, 12-diamond-shaped heat dissipation hole, 13-second oblique steel sheet, 14-shoulder patterned block, 15-anti-stone step. Detailed Implementation
[0036] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0037] In one specific embodiment of this utility model, such as Figure 1-6 As shown, a tread pattern structure for a heavy-duty all-steel radial tire includes two longitudinal straight grooves 1 and two zigzag grooves 2 extending circumferentially along the tread. The two zigzag grooves 2 are located between the two longitudinal straight grooves 1. Anti-stone steps 15 are provided above the bottom of both the two longitudinal straight grooves 1 and the two zigzag grooves 2. A central tread strip 3 is formed between the two zigzag grooves 2. The central tread strip 3 is divided into several central tread blocks 5 along the circumferential direction of the tread by several first oblique wavy steel strips 4. Each central tread block 5 is provided with a longitudinally reversed S-shaped steel strip 6.
[0038] Each zigzag groove 2 and the adjacent longitudinal straight groove 1 are formed with a crown pattern strip 7. Each crown pattern strip 7 is divided into several crown pattern blocks 9 by several second oblique wavy steel strips 8 along the circumferential direction of the tread. Each crown pattern block 9 is provided with a first oblique steel strip 10.
[0039] Each longitudinal groove 1 has a shoulder tread strip 11 formed on the side away from the zigzag groove 2. Each shoulder tread strip 11 has several diamond-shaped heat dissipation holes 12 on its outer side. On the side of each shoulder tread strip 11 closest to the longitudinal groove 1 (at the position of 2 / 5 of the width of the shoulder tread strip), it is divided into several shoulder tread blocks 14 along the circumferential direction of the tread by several second oblique steel plates 13. The other side of each shoulder tread strip 11 away from the longitudinal groove 1 retains its original whole structure.
[0040] The tread pattern structure of this utility model for heavy-duty all-steel radial tires is aesthetically pleasing, improves the tire's load-bearing capacity, ensures excellent drainage and grip performance, reduces the risk of slippage, and enhances the vehicle's handling and stability on wet and slippery roads. It also solves the current problems of tire grip, drainage, uneven wear, and shoulder gap.
[0041] Specifically, the combined design of two longitudinal straight grooves 1 and two zigzag grooves 2 makes the tire driving force stronger during the car's driving process, while also having excellent drainage performance. It can quickly drain the water between the tire and the ground, reduce the risk of slipping, and improve the vehicle's handling and stability on wet and slippery roads.
[0042] The design of the first oblique wave-shaped steel sheet 4, the second oblique wave-shaped steel sheet 8, the first oblique steel sheet 10 and the second oblique steel sheet 13 enhances the tire's grip performance. Combined with the longitudinally set reverse S-shaped steel sheet 6, the tire has a certain anti-skid performance and exhibits stable handling performance on wet and slippery roads, making driving safer and more reliable.
[0043] The shoulder tread strip 11 is designed as a single piece, which improves the rigidity and aesthetics of the shoulder and effectively prevents the creep of the shoulder tread block 14 during driving. This results in less deformation of the tread block, thereby reducing rolling resistance and reducing tire wear problems. Combined with the diamond-shaped heat dissipation hole design on the shoulder, the heat generation of the tire shoulder is reduced, thereby reducing the proportion of shoulder gaps that are prone to occur during long-term high-speed driving. The overall structure is more beautiful and elegant.
[0044] like Figure 2 As shown, each zigzag groove 2 has a variable-angle groove wall and a bottom anti-stone step structure. Along the depth direction of the groove, there is a layer of anti-stone steps 15 at the bottom of the groove, and the anti-stone steps 15 are located at 3 / 5 of the groove depth. Along the depth direction of the groove (from the tread surface to the step), the angle between the groove wall above the anti-stone step 15 (the side where the tread block connects to the step) and the tread plane changes continuously, ranging from 101° to 117°. Along the depth direction of the groove (from the step to the bottom of the groove), the groove wall below the anti-stone step 15 (the side where the step connects to the bottom of the groove) is vertically downward, and the bottom of the groove is a full arc.
[0045] like Figure 3 As shown, in this embodiment, each longitudinal straight groove 1 is a structure with a variable angle groove wall and a bottom anti-stone step. Along the depth direction of the tread groove, a layer of anti-stone steps 15 is provided at the bottom of the groove, and the anti-stone steps 15 are located at 3 / 5 of the depth of the tread groove. Along the depth direction of the tread groove (from the tread surface to the anti-stone step), the angle between the groove wall above the anti-stone step 15 (the side where the tread block connects to the anti-stone step) and the tread plane changes continuously, with a range of 97°-117°. Along the depth direction of the tread groove (from the anti-stone step to the bottom of the groove), the groove wall below the anti-stone step 15 (the side where the anti-stone step connects to the bottom of the groove) is vertically downward, and the bottom of the groove is a full arc.
[0046] In this embodiment, a structure with variable-angle trench walls and anti-stone steps at the bottom of the trench is used to create a longitudinal straight trench and a tortuous trench. The anti-stone steps can form a barrier to limit the stones from going deeper into the trench bottom and prevent the stones from making full contact with the trench bottom, thereby cutting the rubber at the bottom of the trench. The variable-angle trench walls can make it easier for stones to be discharged, effectively reducing the phenomenon of stones getting stuck, improving the stone discharge performance of the tire, and enhancing the tire's impact resistance and puncture resistance.
[0047] like Figure 2 and Figure 3 As shown, in this embodiment, the anti-stone step 15 of each longitudinal straight ditch 1 and tortuous ditch 2 has a rounded transition with the upper ditch wall, and the radius is 1.5mm. Of course, in other embodiments, the rounded radius can be adjusted according to the requirements.
[0048] In this embodiment, several first oblique wave-shaped steel sheets 4 are parallel to each other and distributed at equal distances along the circumference of the tire tread, and the central pattern strip 3 is divided into several central pattern blocks 5 of the same size;
[0049] Several second oblique wavy steel sheets 8 are parallel to each other and are distributed at equal distances along the circumference of the tread, and divide the crown pattern strips 7 into several crown pattern blocks 9 of the same size along the circumference of the tread;
[0050] The adjacent first oblique steel plates 10 are arranged in parallel, and the two ends of the first oblique steel plates 10 are respectively connected to the adjacent longitudinal straight grooves 1 and zigzag grooves 2, and each crown pattern block 9 is divided into two pattern blocks of the same size.
[0051] Of course, such as Figure 1 As shown, in this embodiment, the shoulder tread block 14, the center tread block 5, and the crown tread block 9 are all designed with a staggered arrangement, which effectively reduces the noise of the tire tread during driving and improves driving comfort.
[0052] In this embodiment, several reverse S-shaped steel strips 6 on the center tread blocks 5 are distributed at equal intervals along the circumference of the tire tread. Each reverse S-shaped steel strip 6 is located in the middle of the center tread block 5, and the two ends of the reverse S-shaped steel strip 6 are not connected to the adjacent first oblique wave-shaped steel strip 4. The longitudinally arranged reverse S-shaped steel strips can increase the tire grip and also play a certain role in preventing sideslip, while ensuring a certain degree of aesthetics.
[0053] In this embodiment, the first inclined steel sheet 10 has an angle of 10°±5° with the horizontal direction; it can break the water film and improve the tire's wet grip performance; the adjacent second inclined steel sheets 13 are arranged in parallel and have an angle of 10°±5° with the horizontal direction.
[0054] like Figure 4-5 As shown, in this embodiment, the first oblique corrugated steel sheet 4 (not shown, its structure in this embodiment can be referred to) Figure 4), second oblique corrugated steel sheet 8 (such as Figure 5 ), second oblique steel sheet 13 (such as Figure 4 The design employs steel plates of varying depths, which ensures the rigidity of each tread block, reduces tread block creep, and guarantees tire grip even in the later stages of tire wear.
[0055] like Figure 6 As shown, the diamond-shaped heat dissipation hole 12 has a diameter of 16mm and a depth of 3mm, which improves the heat dissipation performance of the tire. Compared with the structure without heat dissipation grooves, it can reduce the heat generation phenomenon in the shoulder area, thereby reducing the proportion of shoulder gaps that are prone to occur during long-term high-speed driving.
[0056] The above-disclosed embodiment is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A tread pattern structure for a heavy-duty all-steel radial tire, characterized in that, It includes two longitudinal straight grooves (1) and two zigzag grooves (2) extending along the circumference of the tire tread. The two zigzag grooves (2) are located between the two longitudinal straight grooves (1). Anti-stone steps (15) are provided above the bottom of the two longitudinal straight grooves (1) and the two zigzag grooves (2). A central tread strip (3) is formed between the two zigzag grooves (2). The central tread strip (3) is divided into several central tread blocks (5) along the circumference of the tire tread by several first oblique wavy steel strips (4). Each central tread block (5) is provided with a reverse S-shaped steel strip (6) in the longitudinal direction. Each of the zigzag grooves (2) and the adjacent longitudinal straight grooves (1) are provided with a crown pattern strip (7). Each crown pattern strip (7) is divided into several crown pattern blocks (9) along the circumferential direction of the tread by several second oblique wavy steel plates (8). Each crown pattern block (9) is provided with a first oblique steel plate (10). Each longitudinal groove (1) has a shoulder pattern strip (11) formed on the side away from the zigzag groove (2). Each shoulder pattern strip (11) has several diamond-shaped heat dissipation holes (12) on its outer side. Each shoulder pattern strip (11) is divided into several shoulder pattern blocks (14) along the circumferential direction of the tread by several second oblique steel plates (13) on the side close to the longitudinal groove (1). The other side of each shoulder pattern strip (11) away from the longitudinal groove (1) is a whole structure.
2. The tread pattern structure of a heavy-duty all-steel radial tire according to claim 1, characterized in that, Each of the longitudinal straight grooves (1) is a structure with a variable angle groove wall and a bottom anti-stone step. Along the depth direction of the groove, a layer of anti-stone steps (15) is provided at the bottom of the groove, and the anti-stone steps are located at 3 / 5 of the groove depth. Along the depth direction of the groove, the angle between the groove wall above the anti-stone step (15) and the tread plane changes continuously, with a range of 97°-117°. Along the depth direction of the groove, the groove wall below the anti-stone step (15) is vertically downward, and the bottom of the groove is a full arc.
3. The tread pattern structure of a heavy-duty all-steel radial tire according to claim 1, characterized in that, Each of the meandering grooves (2) is a structure with a variable angle groove wall and a bottom anti-stone step. Along the depth direction of the groove, a layer of anti-stone steps (15) is provided at the bottom of the groove, and the anti-stone steps are located at 3 / 5 of the groove depth. Along the depth direction of the groove, the angle between the groove wall above the anti-stone step (15) and the tread plane changes continuously, with a range of 101°-117°. Along the depth direction of the groove, the groove wall below the anti-stone step (15) is vertically downward, and the bottom of the groove is a full arc.
4. The tread pattern structure of a heavy-duty all-steel radial tire according to claim 1, characterized in that, Several first oblique wavy steel sheets (4) are parallel to each other and distributed at equal distances along the circumference of the tire tread, and divide the central pattern strip (3) into several central pattern blocks (5) of the same size.
5. The tread pattern structure of a heavy-duty all-steel radial tire according to claim 1, characterized in that, The reverse S-shaped steel strips (6) on several central tread blocks (5) are distributed at equal distances along the circumference of the tire tread. Each reverse S-shaped steel strip (6) is located in the middle of the central tread block (5), and the two ends of the reverse S-shaped steel strip (6) are not connected to the adjacent first oblique wavy steel strip (4).
6. The tread pattern structure of a heavy-duty all-steel radial tire according to claim 1, characterized in that, Several second oblique wavy steel sheets (8) are parallel to each other and are distributed at equal distances along the circumference of the tire tread, and the crown pattern strips (7) are divided into several crown pattern blocks (9) of the same size along the circumference of the tire tread.
7. The tread pattern structure of a heavy-duty all-steel radial tire according to claim 1, characterized in that, The adjacent first oblique steel plates (10) are arranged in parallel, and the two ends of the first oblique steel plates (10) are respectively connected to the adjacent longitudinal straight groove (1) and the tortuous groove (2), and each crown pattern block (9) is divided into two pattern blocks of the same size.
8. The tread pattern structure of a heavy-duty all-steel radial tire according to claim 7, characterized in that, The first oblique steel sheet (10) forms an angle of 10°±5° with the horizontal direction.
9. The tread pattern structure of a heavy-duty all-steel radial tire according to claim 1, characterized in that, The adjacent second inclined steel plates (13) are arranged in parallel and form an angle of 10°±5° with the horizontal direction.
10. The tread pattern structure of a heavy-duty all-steel radial tire according to claim 2 or 3, characterized in that, The anti-stone step (15) and the upper ditch wall are rounded, with a radius of 1.5mm.