Truck all-wheel-position pattern and tire

Abstract

The utility model provides a lorry all-wheel-position pattern and a tire, which belong to the technical field of lorry tires, and comprise four longitudinal grooves which continuously extend along the circumferential direction of a tire tread and are arranged along the radial direction of the tire tread; the longitudinal grooves are bent; in the left-right side direction of the groove bottom, each bending part of the longitudinal groove is divided into a convex part positioned on one side of the groove bottom and a concave part positioned on the other side of the groove bottom; and one side of the same longitudinal groove is formed by alternately connecting a plurality of convex parts and concave parts. The utility model solves the technical problem that all wheel positions of the existing lorry are difficult to meet the requirements of high load and high mileage at the same time, and has the characteristics of high load and high mileage.

Description

Technical Field

[0001] The utility model belongs to the technical field of truck tires, in particular to a truck all-wheel position pattern and a tire. Background Art

[0002] Tires are round, ground-contacting rubber products mounted on various vehicles and machinery. Mounted on metal rims, they support the vehicle's body, mitigate external impacts, maintain contact with the road, and ensure the vehicle's driving and handling performance. As the only part of a vehicle that contacts the ground, tires bear the vehicle's load, transmit driving and braking forces to the road, cushion and absorb shock, and maintain and change the vehicle's direction.

[0003] Depending on the wheel position they are suitable for, tires can be divided into guide wheel, drive wheel, tug wheel, and all-wheel position tires. Tires have different characteristics depending on the wheel position. Among them, all-wheel position tires are a relatively special category of short- and medium-distance tires. They must have the excellent guiding, driving, braking, and anti-skid properties of guide wheel, drive wheel, and tug wheel position tires. At the same time, they must also have the excellent passability, good load capacity, strong grip, and outstanding wear and puncture resistance of conventional short- and medium-distance tires. In recent years, low rolling resistance, lightweight, high mileage, and high load capacity have become the demands of owners in today's commercial vehicle industry. However, existing all-wheel position tires for heavy-duty trucks find it difficult to simultaneously meet the requirements of high load capacity and high mileage. Utility Model Content

[0004] The details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent.

[0005] The utility model provides a tread pattern and tire for all wheel positions of a truck, which solves the technical problem that it is difficult for existing trucks to meet the requirements of high load and high mileage at the same time, and has the characteristics of high load and high mileage.

[0006] The utility model discloses one kind of truck full wheel position pattern, including four longitudinal grooves extending continuously along the circumferential direction of tire tread and being arranged along the radial direction of tire tread;Longitudinal groove is bent shape;Along the left and right side direction of groove bottom, longitudinal groove is divided into convex part located at one side of groove bottom and concave part located at the other side of groove bottom at each bending place;The same longitudinal groove is connected by a plurality of convex parts and concave parts alternately on one side;Convex part's groove wall includes: first arc-shaped groove wall, first vertical groove wall, first inclined groove wall;First arc-shaped groove wall one end is connected with groove bottom;First vertical groove wall is perpendicular to groove bottom, and one end is tangentially connected with the other end of first arc-shaped groove wall;First inclined groove wall one end is connected with the other end of first vertical groove wall, and the other end extends to tire tread, and the groove wall angle of first inclined groove wall is first angle;Concave part's groove wall includes: second arc-shaped groove wall, second vertical groove wall, second inclined groove wall;Second arc-shaped groove wall one end is connected with groove bottom;Second vertical groove wall is perpendicular to groove bottom, and one end is tangentially connected with the other end of second arc-shaped groove wall;Second inclined groove wall, one end is connected with the other end of second vertical groove wall, and the other end extends to tire tread, and the groove wall angle of second inclined groove wall is second angle;Second angle is greater than first angle, and first arc-shaped groove wall and second arc-shaped groove wall are connected to limit a semicircular groove wall along the left and right sides of groove bottom.

[0007] In some embodiments, along the extension direction of longitudinal groove, the longitudinal groove is composed of a plurality of longitudinal groove units, and the connection of adjacent longitudinal groove units defines the bending place of the longitudinal groove;Each longitudinal groove unit includes a middle part, and a first part and a second part connected to both ends of the middle part;Along the left and right side direction of groove bottom, both sides of the middle part are part of concave part;One side of the first part is part of concave part, and the other side is part of convex part;One side of the second part is part of convex part, and the other side is part of concave part.

[0008] In some embodiments, the first angle is selected from 25-30°, and the second angle is 35-45°.

[0009] In some embodiments, the width of the longitudinal groove is any value in the range of 8.5-10mm.

[0010] In some embodiments, the four longitudinal grooves are uniformly spaced along the radial direction of the tire tread and define a left shoulder pattern block, a left middle pattern block, a central pattern block, a right middle pattern block and a right shoulder pattern block.

[0011] In some embodiments, the ratio of the width of the left shoulder pattern block to the width of the central pattern block is 0.9803-1.3184, and the ratio of the width of the right shoulder pattern block to the width of the central pattern block is 0.9803-1.3184;The width of the left middle pattern block and the width of the right middle pattern block are equal to the width of the central pattern block.

[0012] In some embodiments, the all-wheel tread pattern for trucks further includes a steel sheet connected to the longitudinal groove at one end, and the other free end of the steel sheet is closed to the tread block on that side.

[0013] In some embodiments, one end of the steel sheet is vertically connected to the recess.

[0014] In some embodiments, the steel sheet is a curved steel sheet with a length of 7-9 mm, a width of 0.7-0.9 mm, and a depth of 5-7 mm.

[0015] The utility model further discloses a truck all-wheel position tire, the tread of which is provided with a truck all-wheel position pattern according to any one of the above technical solutions.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model provides a tread pattern for all wheel positions of a truck. By limiting the longitudinal groove wall structure and adopting a stepped groove wall variable angle design, the rigidity of the crown tread strip is ensured while the stress stability of the tread strip is facilitated, the stress deformation of the tread is improved, the ground contact of the tire is more uniform, the service life of the tire is increased, and the traction of the tire is greatly improved. The occurrence of phenomena such as groove cracking can be effectively avoided, while meeting the requirements of high load and high mileage. In addition, the stepped groove wall can be designed with a larger groove wall angle, providing the pattern with better self-cleaning performance.

[0018] The utility model provides a truck tire for all wheel positions, which has the characteristics of high load capacity and high mileage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 A schematic diagram of the structure of the all-wheel pattern for a truck provided by an embodiment of the present utility model;

[0021] Figure 2 for Figure 1 Cross-sectional view of the longitudinal groove along the AA direction;

[0022] Figure 3 for Figure 1 Cross-sectional view of the longitudinal groove along the BB direction;

[0023] In the above figures: 101, convex part; 1011, first arcuate groove wall; 1012, first vertical groove wall; 1013, first inclined groove wall; 102, concave part; 1021, second arcuate groove wall; 1022, second vertical groove wall; 1023, second inclined groove wall; 103, middle part; 104, first part; 105, second part; 201, left shoulder tread block; 202, left middle tread block; 203, central tread block; 204, right middle tread block; 205, right shoulder tread block; 30, steel sheet. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] The embodiment of the utility model provides a full wheel pattern for a truck. Figure 1 This is a schematic diagram of the structure of the all-wheel pattern of a truck according to an embodiment of the present invention. Figure 1 As shown, the all-wheel pattern of the truck includes four longitudinal grooves extending continuously along the circumference of the tire tread and arranged radially along the tire tread; the longitudinal grooves are bent; along the left and right sides of the groove bottom, the longitudinal grooves are divided into a convex portion 101 located on one side of the groove bottom and a concave portion 102 located on the other side of the groove bottom at each bend; one side of the same longitudinal groove is formed by a plurality of convex portions 101 and concave portions 102 alternately connected; as shown in FIG. Figure 2As shown, the groove wall of the convex part 101 comprises a first arc-shaped groove wall 1011, a first vertical groove wall 1012, and a first inclined groove wall 1013. The first arc-shaped groove wall 1011 is connected to the groove bottom at one end. The first vertical groove wall 1012 is perpendicular to the groove bottom and connected to the other end of the first arc-shaped groove wall 1011 at one end. The first inclined groove wall 1013 is connected to the other end of the first vertical groove wall 1012 at one end and extends to the tire tread at the other end. The groove wall angle of the first inclined groove wall 1013 is a first angle. The groove wall of the concave part 102 comprises a second arc-shaped groove wall 1021, a second vertical groove wall 1022, and a second inclined groove wall 1023. The second arc-shaped groove wall 1021 is connected to the groove bottom at one end. The second vertical groove wall 1022 is perpendicular to the groove bottom and connected to the other end of the second arc-shaped groove wall 1021 at one end. The second inclined groove wall 1023 is connected to the other end of the second vertical groove wall 1022 at one end and extends to the tire tread at the other end. The groove wall angle of the second inclined groove wall 1023 is a second angle. The second angle is greater than the first angle. The first arc-shaped groove wall 1011 and the second arc-shaped groove wall 1021 are connected to define a semicircular groove wall along the left and right sides of the groove bottom. Further, along the extension direction of the longitudinal groove, the longitudinal groove is composed of a plurality of longitudinal groove units connected in an obtuse angle. The connection between adjacent longitudinal groove units defines a bending portion of the longitudinal groove. Each longitudinal groove unit comprises a middle portion 103, a first portion 104, and a second portion 105 connected to both ends of the middle portion 103. Along the left and right side direction of the groove bottom, the first portion 104 is a convex part 101, and the second portion 105 is a concave part 102. Figure 3 As shown, the middle portion 103 is a concave part 102 on both sides. Figure 2 As shown, one side of the first portion 104 is a concave part 102, and the other side is a convex part 101. One side of the second portion 105 is a convex part 101, and the other side is a concave part 102.

[0026] The above-mentioned all-wheel tread pattern of the heavy-duty truck limits the longitudinal groove wall structure and adopts a stepped groove wall variable angle design. While ensuring the rigidity of the crown tread strip, it is beneficial to the force stability of the tread strip, improves the force deformation of the tread, makes the tire ground contact more uniform, and increases the service life of the tire. At the same time, it greatly improves the traction of the tire, can effectively avoid the occurrence of groove cracks and other phenomena, and at the same time ensures the requirements of high load and high mileage. In addition, the stepped groove wall can be designed with a larger groove wall angle to provide the pattern with better self-cleaning properties. The longitudinal groove adopts a W-shaped zigzag widening pattern groove design. Specifically, since the groove wall angle of the first inclined groove wall 1013 of the convex part 101 is smaller than the groove wall angle of the second inclined groove wall 1023 of the concave part 102, and the first part 104 and the second part 105 are on both sides of partial convex parts 101 and partial concave parts 102, and both sides of the middle part 103 are partial concave parts 102, the width of the middle part 103 is greater than the width of the first part 104 and the second part 105, and the wide and narrow positions are alternately distributed along the circumference of the tread on the tire, which is more conducive to balancing various aspects of the tire performance and maximizing the optimization of the performance advantages of the convex part 101 and the concave part 102 in the tire.

[0027] In some embodiments, the first angle is selected from 25-30 degrees, and the second angle is 35-45 degrees. It is understood that the first angle can also be 26 degrees, 27 degrees, 28 degrees, 29 degrees, and any value therein, and the second angle can also be 36 degrees, 37 degrees, 38 degrees, 39 degrees, 40 degrees, 41 degrees, 42 degrees, 43 degrees, 44 degrees, and any value therein.

[0028] In some embodiments, the width of the longitudinal groove is any value between 8.5 and 10 mm. It is understood that the width of the longitudinal groove can also be 9.0 mm, 9.5 mm, and any point value within the range thereof.

[0029] In some embodiments, four longitudinal grooves are evenly spaced radially along the tire tread and define a left shoulder block 201, a left middle block 202, a central block 203, a right middle block 204, and a right shoulder block 205. The shoulder blocks, the left middle block 202, the central block 203, the right middle block 204, and the right shoulder block 205 are all continuous blocks. The ratio of the width of the left shoulder block 201 to the width of the central block 203 is 0.9803-1.3184, and the ratio of the width of the right shoulder block 205 to the width of the central block 203 is 0.9803-1.3184. The widths of the left middle block 202 and the right middle block 204 are equal to the width of the central block 203. The combination of different tread rib widths and the appropriate width variation optimizes the tire's contact patch, ensuring more even force distribution across the crown during high-speed driving. This prevents problems such as uneven crown wear and uneven wear, and avoids issues like crown voids and shoulder voids in the early stages of tire use. The shoulder ribs feature a closed design to ensure shoulder rigidity, address uneven shoulder wear, and extend tire life. Furthermore, to address heat dissipation issues, grooves are used on the outer side of the shoulder to improve shoulder heat dissipation and effectively reduce shoulder voids and other wear-related issues.

[0030] In some embodiments, the all-wheel tread pattern of the truck further includes a steel sheet 30 connected to the longitudinal groove at one end, and the other free end of the steel sheet 30 is closed on the tread block on that side. Furthermore, one end of the steel sheet 30 is vertically connected to the recess 102; the steel sheet 30 is a curved steel sheet 30 with a length of 7-9 mm, a width of 0.7-0.9 mm, and a depth of 5-7 mm. The presence of the steel sheet 30 is beneficial to heat dissipation of the tread and at the same time helps to improve the grip performance of the tire. It is understandable that the length of the steel sheet 30 can also be 7.5 mm, 8.0 mm, 8.5 mm, and any value within the range thereof. The width of the steel sheet 30 can also be 0.8 mm. The depth of the steel sheet 30 can also be 5.5 mm, 6.0 mm, 6.5 mm, and any value within the range thereof.

[0031] Another aspect of the present invention discloses a heavy-duty truck tire with an all-wheel-position tread pattern according to any of the above-mentioned technical solutions. This all-wheel-position truck tire combines high load capacity and high mileage. Furthermore, the tread pattern of this all-wheel-position truck tire utilizes an unequal pitch design.

[0032] Furthermore, the high-saturation design improves the tire's wear resistance, thereby increasing mileage. The four-way W-shaped tread pattern design provides superior traction and excellent wet-slip resistance, enhancing safety in actual use. Optimizing the profile and pattern design improves tire performance while strengthening the bead design, reducing premature tire damage, extending tire life, and improving cost-effectiveness.

[0033] Furthermore, to meet the load requirements of this specification, the tire's contours and construction are optimized to enhance its wear resistance. A low-heating, ultra-wear-resistant rubber compound is used for the tread. 30 small steel plates are added to the tire tread strips to effectively increase the rigidity of the tire surface and reduce deformation during load application. The tread pattern also features a high saturation design to improve the tire's wear resistance. Furthermore, the bead opening can be optimized and reinforced to improve the tire's load-bearing performance, effectively preventing quality issues at the bead opening, extending the tire's service life, and significantly improving its cost-effectiveness.

[0034] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A tread pattern for all wheel positions of a truck, characterized in that: It comprises four longitudinal grooves extending continuously along the circumference of the tire tread and arranged radially along the tire tread; the longitudinal grooves are bent; Along the left and right sides of the groove bottom, the longitudinal groove is divided into a convex portion located on one side of the groove bottom and a concave portion located on the other side of the groove bottom at each bend; one side of the same longitudinal groove is formed by a plurality of the convex portions and the concave portions being alternately connected; The groove wall of the convex portion includes: The first arc-shaped trench wall has one end connected to the trench bottom; a first vertical groove wall, perpendicular to the groove bottom, and having one end tangentially connected to the other end of the first arc-shaped groove wall; a first inclined groove wall, one end of which is connected to the other end of the first vertical groove wall and the other end of which extends to the tire tread, wherein the groove wall angle of the first inclined groove wall is a first angle; The groove wall of the recess comprises: The second arc-shaped trench wall has one end connected to the trench bottom; a second vertical groove wall, perpendicular to the groove bottom, and having one end tangentially connected to the other end of the second arc-shaped groove wall; a second inclined groove wall, one end of which is connected to the other end of the second vertical groove wall and the other end of which extends to the tire tread, wherein the groove wall angle of the second inclined groove wall is a second angle; The second angle is greater than the first angle, and the first arc-shaped groove wall and the second arc-shaped groove wall arranged opposite to each other along the left and right sides of the groove bottom are connected to define a semicircular groove wall.

2. The all-wheel pattern for trucks according to claim 1, characterized in that: Along the extension direction of the longitudinal groove, the longitudinal groove is composed of a plurality of longitudinal groove units connected at an obtuse angle, and the connection between adjacent longitudinal groove units defines the bending point of the longitudinal groove; Each of the longitudinal groove units includes a middle portion, and a first portion and a second portion connected to both ends of the middle portion; Along the left and right sides of the groove bottom, both sides of the middle part are partially concave; one side of the first part is partially concave, and the other side is partially convex; one side of the second part is partially convex, and the other side is partially concave.

3. The all-wheel pattern for trucks according to claim 1, characterized in that: The first angle is selected from 25-30°, and the second angle is 35-45°.

4. The all-wheel pattern for trucks according to claim 1, characterized in that: The width of the longitudinal groove is any value between 8.5 and 10 mm.

5. The all-wheel pattern for trucks according to claim 1, characterized in that: The four longitudinal grooves are evenly spaced along the radial direction of the tire tread and define a left shoulder pattern block, a left middle pattern block, a central pattern block, a right middle pattern block, and a right shoulder pattern block.

6. The all-wheel pattern for trucks according to claim 5, characterized in that: The ratio of the width of the left shoulder pattern block to the width of the central pattern block is 0.9803-1.3184, and the ratio of the width of the right shoulder pattern block to the width of the central pattern block is 0.9803-1.3184; the width of the left middle pattern block and the width of the right middle pattern block are equal to the width of the central pattern block.

7. The all-wheel pattern for trucks according to claim 1, characterized in that: The all-wheel pattern of the truck further comprises a steel sheet with one end connected to the longitudinal groove, and the other free end of the steel sheet is closed on the pattern block on the side.

8. The all-wheel pattern for trucks according to claim 7, characterized in that: One end of the steel sheet is vertically connected to the recess.

9. The all-wheel pattern for trucks according to claim 7, characterized in that: The steel sheet is a curved steel sheet with a length of 7-9 mm, a width of 0.7-0.9 mm, and a depth of 5-7 mm.

10. A truck all-wheel tire, characterized in that: The tread is provided with the truck all-wheel pattern according to any one of claims 1 to 9.

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