A high mileage all-steel radial truck tire tread pattern and tire suitable for all wheel positions

Abstract

The utility model provides a kind of high mileage all-steel load radial tire tread pattern suitable for full wheel position and tire, the design of the pattern groove of the present application can prevent the pattern groove from clamping stone, and can effectively reduce the damage of groove bottom crack caused by groove bottom fatigue stress;The design of U-shaped groove improves the drainage property while ensuring the self-cleaning performance of the tire;Moreover, the angle of the normal direction of the sidewall of the central pattern groove and the sidewall above the tread is the same, which can also make the stress on both sides of the entire tread pattern more uniform.

Description

Technical Field

[0001] This utility model relates to all-steel radial truck tires, and more particularly to a tread pattern and tire for a high-mileage all-steel radial truck tire suitable for all wheel positions. Background Technology

[0002] Currently, with the continuous development of the domestic economy and infrastructure, the transportation environment and demand of the transportation industry are completely different from those in the past.

[0003] The prior art CN117207715A provides an all-steel radial tire that is resistant to stone inclusion and groove cracking. Compared with this application, its groove bottom small protrusion design reduces the width and angle of the bottom of the tread groove, thereby increasing the probability of groove bottom cracking and reducing the tire's heat dissipation performance. The tread groove curve transition of this application is smoother, which provides design support to avoid fatigue groove cracking under long-term use.

[0004] The CN202006702U_pneumatic tire tread anti-stone-clamping structure requires intermittent anti-stone-clamping protrusions extending laterally from the bottom of the left and right groove walls, making the structure relatively complex.

[0005] The tread pattern provided by the TWI464078B_Multiple asymmetric groove wall tire tread structure requires multiple asymmetric groove walls to achieve the purpose of expelling small sand and gravel. The multiple asymmetric groove wall has a complex structure. Utility Model Content

[0006] To address the aforementioned issues, this invention provides a tread pattern and tire suitable for high-mileage all-steel radial truck tires with all wheel positions. The tread groove wall structure is relatively simple, effectively preventing stones from being trapped in the tread grooves and reducing groove bottom cracking damage caused by fatigue stress. It also makes the stress on both sides of the entire tread pattern more uniform. The U-shaped groove design improves water drainage while ensuring the tire's self-cleaning performance.

[0007] The technical solution of this utility model is as follows: a tread pattern for a high-mileage all-steel radial truck tire suitable for all wheel positions, including tread grooves and tread strips arranged along the tire circumference. Along the tire circumference, the tread grooves are zigzag grooves. Along the tire transverse direction, from the center of the tread to both sides, the tread grooves are successively a central tread groove and an intermediate tread groove. The bottom of the central tread groove and the intermediate tread groove are respectively provided with U-shaped grooves along the tire circumference. The angle between the groove walls on both sides of the central tread groove and the normal direction of the tread above the groove wall is the same, and the angle is α, which is 13-17°. The angle b between the groove wall of the intermediate tread groove near the central tread groove and the normal direction of the tread above the groove wall is 20-24°. The angle c between the groove wall of the intermediate tread groove away from the central tread groove and the normal direction of the tread above the groove wall is 7-9°.

[0008] The groove pattern is a zigzag groove, and the angle d between the groove pattern and the longitudinal direction is 16-20°.

[0009] Along the tire's circumference, adjacent tread grooves are arranged in a staggered pattern.

[0010] The tread pattern is symmetrical.

[0011] The tread strips on both sides of the center tread groove are the middle tread strips. The middle tread strips have transverse grooves that connect the bends of the center tread groove and the bends of the middle tread grooves. Adjacent transverse grooves on the same tread strip along the tire circumference are connected at intervals of one bend of the middle tread groove. The transverse grooves divide the middle tread strips into hexagonal tread blocks.

[0012] The transverse groove connects the nearest bends of two adjacent patterned grooves.

[0013] The width of the transverse groove is 1.8-2.2mm, and the depth is 4.6-5.4mm.

[0014] The hexagonal patterned block has a quadrilateral groove. Two connected sides of the quadrilateral groove are parallel to the pattern groove and the transverse groove, respectively. The intersection point A formed by these two sides is 13-17mm away from the nearest bend in the pattern groove. This nearest bend in the pattern groove is the bend in the middle pattern groove connecting the transverse groove. These two sides intersect with the other two sides of the quadrilateral groove to form included angles e and f, where e is 10-12° and f is 13.5-15.5°.

[0015] The tread strips on the outer side of the middle tread groove are the shoulder tread strips. The two shoulder tread strips have shoulder grooves, and the positions of the shoulder grooves on the two shoulder tread strips are asymmetrical about the center line of the tread. The transverse center line of each shoulder groove coincides with the bend of the middle tread groove.

[0016] A high-mileage all-steel radial truck tire suitable for all wheel positions, wherein the tire tread pattern is the tire tread pattern described above.

[0017] The beneficial effects of this utility model are as follows: This utility model provides a tread pattern and tire suitable for all wheel positions, high mileage all-steel radial truck tires. The design of the tread grooves in this application can prevent stones from being trapped in the tread grooves and can effectively reduce the damage to the groove bottom caused by fatigue stress. The U-shaped groove design can improve water drainage while ensuring the tire's self-cleaning performance. Moreover, the angle between the groove walls on both sides of the central tread groove and the normal direction of the tread above the groove wall is the same, which can also make the stress on both sides of the entire tread pattern more uniform. Attached Figure Description

[0018] Fig. 1 This is a schematic diagram of the structure of this utility model.

[0019] Fig. 2This is a cross-sectional structural diagram of the central patterned groove and the intermediate patterned groove of this utility model.

[0020] Fig. 3 This is a schematic diagram showing the position of quadrilateral groove 32. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. It should be understood that the preferred embodiments described herein are only for illustration and explanation of this utility model and should not be construed as limiting the scope of protection of this utility model. Those skilled in the art can make some non-essential improvements and adjustments based on the content of this utility model below. In this utility model, unless otherwise expressly specified and limited, the technical terms used in this application should have the ordinary meaning understood by those skilled in the art.

[0022] like Figs. 1-3 As shown, a high-mileage all-steel radial truck tire tread pattern suitable for all wheel positions includes tread grooves and tread strips arranged along the tire circumference. Along the tire circumference, the tread grooves are zigzag grooves. Along the tire transverse direction, from the center of the tread to both sides, the tread grooves are successively a central tread groove 1 and an intermediate tread groove 2. The bottom of the central tread groove and the intermediate tread groove are respectively provided with U-shaped grooves 5 along the tire circumference. The angle between the groove walls on both sides of the central tread groove and the normal direction of the tread above the groove wall is the same, and the angle is α, which is 13-17°. The angle b between the groove wall of the intermediate tread groove near the central tread groove and the normal direction of the tread above the groove wall is 20-24°. The angle c between the groove wall of the intermediate tread groove away from the central tread groove and the normal direction of the tread above the groove wall is 7-9°.

[0023] The design of the tread grooves in this application can prevent stones from getting trapped in the tread grooves and can effectively reduce the damage to the groove bottom caused by fatigue stress. The U-shaped groove design can improve water drainage while ensuring the tire's self-cleaning performance. Moreover, the angle between the groove walls on both sides of the central tread groove and the normal direction of the tread above the groove wall is the same, which can also make the stress on both sides of the entire tread pattern more uniform.

[0024] The groove pattern is a zigzag groove, and the angle d between the groove pattern and the longitudinal direction is 16-20°.

[0025] Along the tire circumference, adjacent tread grooves are arranged in a staggered manner. Preferably, each tread groove is staggered from the adjacent tread groove by 0.5 pitch, which is the single bend length of tread groove 2.

[0026] The width distance between the leftmost bend and the rightmost bend of the same groove is 23-27 mm, preferably 25.2 mm. The width of the groove is approximately 12 mm - 15 mm, preferably 13.5 mm.

[0027] The tread pattern is centrally symmetrical. This centrally symmetrical design allows for more even force distribution across the tire during driving, providing more stable longitudinal grip and effectively preventing abnormal wear.

[0028] The tread strips on both sides of the center tread groove 1 are intermediate tread strips 3. The intermediate tread strips 3 are provided with transverse grooves 31 that connect the bend of the center tread groove 1 and the bend of the intermediate tread groove 2. The adjacent transverse grooves 31 on the same tread strip along the tire circumference are separated by an intermediate tread groove bend. The transverse grooves 31 divide the intermediate tread strip into hexagonal tread blocks.

[0029] Except for the two sides located in the transverse groove 31, the other four sides of the same hexagonal pattern block are equal.

[0030] The design of the lateral grooves 31 effectively provides driving force and drainage performance, and also breaks the continuity of the tire surface, thereby reducing the overall noise level.

[0031] The transverse groove 31 connects the closest bends of two adjacent patterned grooves.

[0032] The width of the transverse groove 31 is 1.8-2.2mm and the depth is 4.6-5.4mm.

[0033] The hexagonal patterned block has a quadrilateral groove 32. Two connected sides of the quadrilateral groove 32 are parallel to the patterned groove and the transverse groove 31, respectively. The distance L between the intersection point A formed by these two sides and the nearest bend in the patterned groove is 13-17 mm. This nearest bend in the patterned groove is the middle bend in the patterned groove connecting to the transverse groove 31. These two sides intersect with the other two sides of the quadrilateral groove 32 to form included angles e and f, respectively, where e is 10-12° and f is 13.5-15.5°.

[0034] The quadrilateral groove 32 structure of this application can absorb and digest some noise during driving, and can provide a certain noise reduction effect for the tire.

[0035] The tread strips on the outer side of the central tread groove are the shoulder tread strips 4. Each shoulder tread strip has a shoulder groove 41, and the positions of these grooves 41 are asymmetrical about the tire's centerline. This enhances the tire's heat dissipation performance, effectively reducing damage such as shoulder gaps caused by heat generation. Furthermore, the asymmetrical position of the shoulder grooves 41 ensures that the tire's contact area with the ground is nearly equal at every moment during driving, resulting in more even force distribution and extending the tire's effective lifespan.

[0036] The transverse centerline of each shoulder groove 41 coincides with the bend of the intermediate tread groove 2. This effectively prevents the reduction of the horizontal contact area due to the shoulder design, thereby optimizing pressure distribution, reducing localized excessive wear, and minimizing abnormal tire damage. Compared with other products for the same purpose, this shoulder groove has a smaller opening, and the area occupied by the shoulder groove is only 76.5% of the tread area compared to previous products. The advantage of this is that it can increase the tread saturation of the tire, increase the volume of wearable rubber, and effectively extend the tire's service life. In terms of heat dissipation, due to the current improved infrastructure in China and the significant difference in road conditions compared to the past, the small shoulder design of this utility model can fully meet the heat dissipation requirements of the usage scenario, while also increasing the tire's mileage.

[0037] Based on past design experience, the tread saturation of all-wheel-position high-load all-steel radial truck tires is generally around 60-68%. The saturation of this tread pattern is close to 79%, which can significantly increase the product's mileage.

[0038] A high-mileage all-steel radial truck tire suitable for all wheel positions, wherein the tire tread pattern is the tire tread pattern described in this application.

[0039] In summary, the present invention provides a high-mileage all-steel radial truck tire tread pattern suitable for all wheel positions. Through optimization of tire tread pattern, size of each tread strip, and balance of tread groove angles, combined with balanced control of tread saturation and tread depth, the tire tread pattern achieves ultra-high load capacity and ultra-long mileage performance, fully meeting customers' needs for fuel efficiency, wear resistance, and safety.

[0040] The above descriptions are merely preferred embodiments of this utility model, not all embodiments. The scope of protection of this utility model is not limited thereto. The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model. It should be noted that for those skilled in the art and any person skilled in the art, any equivalent substitutions or changes made based on the technical solutions and utility model concept of this utility model, as well as any changes and improvements made without departing from the overall concept and spirit of this utility model, should also be considered within the scope of protection of this utility model.

Claims

1. A tread pattern for high-mileage all-steel radial truck tires suitable for all wheel positions, characterized in that: It includes tread grooves and tread strips arranged along the tire circumference. Along the tire circumference, the tread grooves are zigzag tread grooves. Along the tire transverse direction, from the center of the tread to both sides, the tread grooves are successively the central tread groove (1) and the intermediate tread groove (2). The bottom of the central tread groove and the intermediate tread groove are respectively provided with U-shaped grooves (5) along the tire circumference. The angle between the groove walls on both sides of the central tread groove and the normal direction of the tread above the groove wall is the same, and the angle is a, which is 13-17°. The angle b between the groove wall of the intermediate tread groove near the central tread groove and the normal direction of the tread above the groove wall is 20-24°. The angle c between the groove wall of the intermediate tread groove away from the central tread groove and the normal direction of the tread above the groove wall is 7-9°.

2. The tread pattern of the high-mileage all-steel radial truck tire applicable to all wheel positions as described in claim 1, characterized in that: The groove pattern is a zigzag groove, and the angle d between the groove pattern and the longitudinal direction is 16-20°.

3. The tread pattern of the high-mileage all-steel radial truck tire applicable to all wheel positions as described in claim 1, characterized in that: Along the tire's circumference, adjacent tread grooves are arranged in a staggered pattern.

4. The tread pattern of the high-mileage all-steel radial truck tire applicable to all wheel positions as described in claim 1, characterized in that: The tread pattern is symmetrical.

5. The tread pattern of the high-mileage all-steel radial truck tire applicable to all wheel positions as described in claim 1, characterized in that: The tread strips on both sides of the central tread groove (1) are intermediate tread strips (3). The intermediate tread strips (3) are provided with transverse grooves (31) connecting the bend of the central tread groove (1) and the bend of the intermediate tread groove (2). Adjacent transverse grooves (31) on the same tread strip along the tire circumference are connected at intervals of one bend of the intermediate tread groove. The transverse grooves (31) divide the intermediate tread strip into hexagonal tread blocks.

6. The tread pattern of the high-mileage all-steel radial truck tire applicable to all wheel positions as described in claim 5, characterized in that: The transverse groove (31) connects the bends of two adjacent patterned grooves that are closest to each other.

7. The tread pattern of a high-mileage all-steel radial truck tire applicable to all wheel positions as described in claim 5, characterized in that: The width of the transverse groove (31) is 1.8-2.2 mm and the depth is 4.6-5.4 mm.

8. The tread pattern of a high-mileage all-steel radial truck tire applicable to all wheel positions as described in claim 5, characterized in that: The hexagonal patterned block is provided with a quadrilateral groove (32). The two connected sides of the quadrilateral groove (32) are parallel to the pattern groove and the transverse groove (31) respectively. At the same time, the distance between the intersection point A formed by these two sides and the nearest bend of the pattern groove is 13-17mm. This nearest bend of the pattern groove is the bend of the middle pattern groove connecting the transverse groove (31). These two sides intersect with the other two sides of the quadrilateral groove (32) to form included angles e and f, where e is 10-12° and f is 13.5-15.5°.

9. The tread pattern of a high-mileage all-steel radial truck tire applicable to all wheel positions as described in claim 1, characterized in that: The tread strips on the outside of the middle tread groove are shoulder tread strips (4). The two shoulder tread strips are provided with shoulder grooves (41). The positions of the shoulder grooves (41) on the two shoulder tread strips (4) are asymmetrical about the center line of the tread. The transverse center line of each shoulder groove (41) coincides with the bend of the middle tread groove (2).

10. A high-mileage all-steel radial truck tire suitable for all wheel positions, characterized in that: The tire tread pattern is the tire tread pattern as described in any one of claims 1-9.

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