Tread pattern with a curved fractal structure

Abstract

The present invention provides a tread pattern with a curved fractal structure, relating to the technical field of vehicle tire tread pattern structures. Four longitudinal grooves extending along the tire circumference divide the tread into shoulder blocks, inner blocks, and middle blocks. The middle block serves as the tire centerline, and the four longitudinal grooves are symmetrical about the centerline of the middle block. First curved fractal grooves extending symmetrically about the center of the middle block to the sidewalls and the bottom of the longitudinal grooves are provided on the two shoulder blocks. Second curved fractal grooves extending symmetrically about the center of the middle block to the bottoms of the longitudinal grooves on both sides are provided on the two inner blocks. Third curved fractal grooves extending symmetrically about the centerline of the middle block to the bottoms of the longitudinal grooves on both sides are provided. This solves the technical problem of limited air flow channels and insufficient heat dissipation capacity, which causes the tire to continuously heat up, thereby achieving the technical effect of better heat dissipation under high-speed driving or load conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle tire tread pattern structures, in particular to a tread pattern with a curved fractal structure. Background Art

[0002] As the only part of a vehicle that comes into direct contact with the ground, tire performance directly impacts vehicle safety, control, and the overall driving experience. With the rapid development of the automotive industry, vehicle speeds are constantly increasing, and driving conditions are becoming increasingly complex and diverse.

[0003] Currently, most existing tire tread patterns use traditional basic geometric shapes such as straight lines and simple arcs. While these patterns can meet basic driving needs and play a certain role under normal road conditions, their drawbacks gradually become apparent under harsh operating conditions such as high-speed driving and prolonged high-load operation. When a vehicle is traveling at high speeds, the intense friction between the tire and the ground and the high-speed flow of air generate a large amount of heat. Traditional tires with simple tread patterns have limited air flow channels and insufficient heat dissipation capacity, causing the tire temperature to continue to rise. High temperatures not only accelerate the aging and wear of the tire rubber, but also lead to a decline in the performance of the tire's internal structure, thereby reducing the tire's grip and handling stability, seriously affecting driving safety.

[0004] Fractal structures, with their unique self-similarity and infinite complexity, can create more airflow channels on the tire surface than traditional patterns. Existing technology lacks a tire tread pattern that utilizes fractal structures to promote air circulation across and within the tire, mitigating performance degradation caused by overheating. Summary of the Invention

[0005] The purpose of the present invention is to provide a tread pattern with a curved fractal structure to alleviate the technical problem in the prior art that the tire tread pattern adopts basic straight lines or geometric shapes, has limited air flow channels, insufficient heat dissipation capacity, and causes the tire temperature to continue to rise.

[0006] To achieve the above object, the technical solution of the present invention is as follows:

[0007] The present invention provides a tread pattern having a curved fractal structure, comprising:

[0008] Four longitudinal grooves are opened along the circumference of the tire, which divide the tread into shoulder blocks, inner blocks and middle blocks;

[0009] The middle tread block is the center line of the tire, and the four longitudinal grooves are symmetrical to the center line of the middle tread block;

[0010] The two shoulder tread blocks are provided with first curved fractal grooves symmetrical with the center of the middle tread block, and the first curved fractal grooves extend to the sidewalls and the bottom of the longitudinal grooves;

[0011] The two inner pattern blocks are provided with second curved fractal grooves symmetrical with the center of the middle pattern block, and the second curved fractal grooves extend to the bottoms of the longitudinal grooves on both sides respectively;

[0012] The middle pattern block is symmetrically provided with a third curved fractal groove about the center line, and the third curved fractal groove extends to the groove bottoms of the longitudinal grooves on both sides.

[0013] Furthermore, the longitudinal groove includes a first groove wall and a second groove wall, both of which are in a broken line shape; a first groove wall angle α formed by the first groove wall and the tread is 18° to 23°, a second groove wall angle β is 10° to 15°, a third groove wall angle γ formed by the second groove wall and the tread is 10° to 15°, and a fourth groove wall angle θ is 18° to 23°;

[0014] The width of the longitudinal groove is 11mm to 15mm, and the depth of the longitudinal groove is 13mm to 20mm;

[0015] The bottom of the longitudinal groove is semicircular in shape, and the diameter of the semicircular bottom of the longitudinal groove is 3 to 8 mm.

[0016] Furthermore, the first curved fractal groove includes two wave transverse grooves extending to the sidewall and the longitudinal groove respectively, the ends of the two wave transverse grooves are connected, and the first curved fractal groove also includes an independent first arc-shaped transverse groove;

[0017] The widths of the wave transverse groove and the first arc-shaped transverse groove are both 1mm to 2mm; the end spacing of the two wave transverse grooves is 3mm to 4mm, and the bending angle of the first arc-shaped transverse groove is 40° to 45°.

[0018] Furthermore, the second curved fractal groove includes a first wave crest transverse groove extending to the longitudinal groove on one side and a second wave crest transverse groove extending to the longitudinal groove on the other side; the second curved fractal groove also includes an independent second arc-shaped transverse groove;

[0019] The widths of the first wave crest transverse groove, the second wave crest transverse groove and the second arc-shaped transverse groove are all 1mm to 2mm; the end spacing of the first wave crest transverse groove is 6mm to 7mm, the end spacing of the second wave crest transverse groove is 1.5mm to 2mm, and the bending angle of the second wave crest transverse groove is 40° to 45°.

[0020] Furthermore, the third curved fractal groove includes a wave transverse groove symmetrical to the center line and a third arc-shaped transverse groove distributed on the curved surface of the wave transverse groove, and the wave front end of the wave transverse groove extends to the longitudinal groove;

[0021] The width of the wave transverse groove and the third arc-shaped transverse groove are both 1mm to 2mm.

[0022] Furthermore, the first curved fractal groove includes a first canyon line transverse groove, seven gentle slope line transverse grooves and flat valley line transverse grooves extending to the sidewall; the first canyon line transverse groove extends to the longitudinal groove;

[0023] The middle width of the first canyon line transverse groove close to the longitudinal groove is 11mm~13mm; the angle between the gentle slope line transverse groove and the horizontal line perpendicular to the sidewall increases from 53° to 80°.

[0024] Furthermore, the second curved fractal groove includes a mountain top line transverse groove, and the mountain top line transverse groove is surrounded by a gully line transverse groove, a second canyon line transverse groove and a platform line transverse groove; the gully line transverse groove extends to the bottom of the longitudinal groove on one side, the second canyon line transverse groove extends to the bottom of the longitudinal groove on the other side, and the platform line transverse groove extends to the bottom of the longitudinal grooves on both sides.

[0025] Furthermore, the third curved fractal groove includes two third canyon line transverse grooves that are centrally symmetrical.

[0026] Furthermore, the widths of the first curved fractal groove, the second curved fractal groove, and the third curved fractal groove are all 1 mm to 1.5 mm.

[0027] Beneficial effects:

[0028] The present invention provides a tread pattern with a curved fractal structure, comprising: four longitudinal grooves opened along the circumference of the tire, the four longitudinal grooves dividing the tread into shoulder pattern blocks, inner pattern blocks and middle pattern blocks; the middle pattern block is the center line of the tire, and the four longitudinal grooves are symmetrical about the center line of the middle pattern block; the four longitudinal grooves opened longitudinally can quickly and effectively drain water between the tire and the ground on rainy days or flooded roads, thereby reducing the probability of hydroplaning.

[0029] The two shoulder tread blocks are provided with first curved fractal grooves symmetrically about the center of the middle tread block, and the first curved fractal grooves extend to the sidewalls and the bottom of the longitudinal grooves; the two inner tread blocks are provided with second curved fractal grooves symmetrically about the center of the middle tread block, and the second curved fractal grooves extend to the bottom of the longitudinal grooves on both sides; the middle tread block is provided with third curved fractal grooves symmetrically about the center line, and the third curved fractal grooves extend to the bottom of the longitudinal grooves on both sides.

[0030] The first, second, and third curved fractal grooves on the shoulder, inner, and center tread blocks, respectively, significantly increase the tire's contact area with the air. During tire use, friction generates significant heat, and this larger contact area allows heat to dissipate more quickly into the surrounding air. The fractal grooves effectively reduce tire performance degradation due to overheating. Furthermore, stable tire temperatures help maintain grip and handling, ensuring driving safety.

[0031] Curved fractal grooves optimize stress distribution within the tire. When the tire is subjected to various forces, these grooves disperse the stress, preventing it from concentrating in specific areas. This makes the tire more stable during driving and further enhances its overall durability.

[0032] The fractal pattern not only gives the tire performance, but also serves as a unique visual logo for the brand, enhancing brand recognition. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 A schematic structural diagram of a tread pattern having a curved fractal structure provided by an embodiment of the present invention;

[0035] Figure 2 A schematic structural diagram of the left longitudinal groove in a tread pattern having a curved fractal structure provided by an embodiment of the present invention;

[0036] Figure 3 A schematic structural diagram of a right longitudinal groove in a tread pattern having a curved fractal structure provided by an embodiment of the present invention;

[0037] Figure 4 A schematic structural diagram of another tread pattern with a curved fractal structure provided by an embodiment of the present invention.

[0038] Icons: 1-longitudinal groove; 2-shoulder tread block; 3-inner tread block; 4-middle tread block; 5-first curved fractal groove; 6-second curved fractal groove; 7-third curved fractal groove; 101-first groove wall; 102-second groove wall;

[0039] 501-wave transverse groove; 502-first arc transverse groove; 601-first wave crest transverse groove; 602-second wave crest transverse groove; 603-second arc transverse groove; 701-wave transverse groove; 702-third arc transverse groove;

[0040] 503-first canyon line traverse ditch; 504-gentle slope line traverse ditch; 505-flat valley line traverse ditch; 604-mountain top line traverse ditch; 605-gully line traverse ditch; 606-platform line traverse ditch; 607-second canyon line traverse ditch; 703-third canyon line traverse ditch. DETAILED DESCRIPTION

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0044] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0046] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0047] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0048] Example 1

[0049] The present invention provides a tread pattern having a curved fractal structure, comprising:

[0050] Four longitudinal grooves 1 are provided along the circumference of the tire, and the four longitudinal grooves 1 divide the tread into shoulder pattern blocks 2, inner pattern blocks 3 and middle pattern blocks 4;

[0051] The middle pattern block 4 is the center line of the tire, and the four longitudinal grooves 1 are symmetrical about the center line of the middle pattern block 4;

[0052] The two shoulder tread blocks 2 are provided with first curved fractal grooves 5 symmetrically centered around the middle tread block 4. The first curved fractal grooves 5 extend to the sidewalls and the bottom of the longitudinal grooves 1.

[0053] The two inner pattern blocks 3 are provided with second curved fractal grooves 6 symmetrical with the center of the middle pattern block 4, and the second curved fractal grooves 6 extend to the bottom of the longitudinal grooves 1 on both sides respectively;

[0054] The middle pattern block 4 is provided with third curved fractal grooves 7 symmetrically about the center line, and the third curved fractal grooves 7 extend to the groove bottoms of the longitudinal grooves 1 on both sides.

[0055] Specifically, if Figure 1 As shown, four longitudinal grooves 1 are arranged along the tire's circumference. These grooves 1 perform important functions of drainage and heat dissipation. These grooves 1 divide the tread into distinct areas: two shoulder blocks 2, two inner blocks 3, and a center block 4. The center block 4 is located along the tire's centerline, and the four longitudinal grooves 1 are symmetrically distributed around the centerline of the center block 4. This symmetrical structure ensures uniform force distribution during driving, effectively improving the tire's straight-line stability.

[0056] The two shoulder blocks 2 are symmetrically centered around the center block 4, forming a first curved fractal groove 5. This curved groove not only connects to the sidewall but also extends to the bottom of the longitudinal groove 1. This extension to the sidewall enhances the tire's lateral support during cornering, allowing it to better adhere to the road surface and reduce the risk of sideslip. Its connection to the longitudinal groove 1 significantly improves drainage capacity, allowing it to quickly drain water between the tire and the ground when driving on slippery roads, effectively reducing the likelihood of hydroplaning and thereby enhancing the tire's handling safety in wet conditions.

[0057] The two inner tread blocks 3 also feature second curved fractal grooves 6, symmetrically centered around the center tread block 4. These grooves extend to the bottoms of the longitudinal grooves 1 on either side. This increases the tire's drainage path, allowing accumulated water to drain more efficiently from the inside. This also optimizes the tire's ground pressure distribution, improving wear resistance and extending its service life.

[0058] The middle tread block 4 is symmetrically arranged with third curved fractal grooves 7 extending to the longitudinal grooves 1 on either side. This better disperses stress during driving, reduces tread block deformation, and improves the tire's handling response, allowing the driver to more precisely control the vehicle.

[0059] The first, second, and third curved fractal grooves 5, 6, and 7 are complex, and their shape and layout provide more airflow channels than traditional tire tread grooves. When the vehicle is traveling at high speeds, air can flow rapidly through these intricate grooves, creating a highly efficient convection heat dissipation mechanism. Under load, the tire generates increased heat due to the greater pressure. The fractal pattern's air channels quickly transfer this heat away, effectively reducing tire performance degradation caused by overheating.

[0060] At high speeds, tires frequently rub against the road, generating a dramatic increase in heat. The complex channels of the fractal pattern guide large amounts of air into the tire, quickly dissipating heat and preventing overheating that can lead to rubber aging, increased wear, and decreased grip. Even under heavy loads, heat generated by tire deformation can be quickly dissipated through these channels, maintaining optimal tire performance and ensuring vehicle safety.

[0061] The longitudinal groove 1 includes a first groove wall 101 and a second groove wall 102, both of which are in a broken line shape; a first groove wall angle α formed by the first groove wall 101 and the tread is 18° to 23°, a second groove wall angle β is 10° to 15°, a third groove wall angle γ formed by the second groove wall 102 and the tread is 10° to 15°, and a fourth groove wall angle θ is 18° to 23°;

[0062] The width of the longitudinal groove is 11mm to 15mm, and the depth of the longitudinal groove is 13mm to 20mm; the bottom of the longitudinal groove is semicircular, and the diameter of the semicircular bottom of the longitudinal groove is 3 to 8mm.

[0063] Specifically, if Figure 2 、 Figure 3 As shown, the four longitudinal grooves 1 are symmetrically distributed in pairs with the center line of the middle pattern block 4 as the symmetry axis, that is, the groove wall angles of the two longitudinal grooves 1 on the left and the two longitudinal grooves 1 on the right are exchanged, as shown in FIG. Figure 2 and Figure 3 As shown, two longitudinal grooves on the left and right sides are shown respectively. The longitudinal groove 1 includes a first groove wall 101 and a second groove wall 102 in the shape of a broken line, and the height from the broken line to the tread is 3mm to 6mm. The first groove wall angle α formed by the first groove wall 101 and the tread is 18° to 23°, the second groove wall angle β is the angle at the broken line, and the angle is 10° to 15°, the third groove wall angle γ formed by the second groove wall 102 and the tread is 10° to 15°, and the fourth groove wall angle θ is also the angle at the broken line, and the angle is 18° to 23°. During the wear process, the tire is very prone to abnormal wear. Once a certain position begins to wear, the wear area will continue to expand outward along that position. The longitudinal grooves of the pattern with different angles can effectively alleviate the repeated wear of the same position of the tire pattern block, allowing the tire to achieve uniform wear, thereby greatly extending the service life of the tire and effectively alleviating the problem of abnormal tire wear.

[0064] Although the groove wall angles have been swapped, the width of the longitudinal groove is 13mm to 15mm. This width ensures the drainage performance of the longitudinal groove. The groove depth of longitudinal groove 1 is 13mm to 20mm, and its bottom is a narrow semicircular groove with a semicircular diameter of 3 to 8mm. This effectively prevents stones from getting stuck in the groove, greatly improving the tire's stone-entrapment prevention rate. When the vehicle is driving on a road with complex road conditions, reducing the risk of stones getting stuck in the groove not only prevents damage to the tire, but also reduces the noise caused by stone friction, improving driving comfort.

[0065] Example 2

[0066] In the embodiment 2 of the present invention, the size and shape of the longitudinal groove 1 are the same as those in the embodiment 1, while the first curved fractal groove 5, the second curved fractal groove 6 and the third curved fractal groove 7 are as shown in FIG. Figure 1 shown.

[0067] The first curved fractal groove 5 includes two wave-shaped transverse grooves 501 that extend to the sidewall and the longitudinal groove 1 and are connected at the ends, and an independent first arc-shaped transverse groove 502. The width of the wave-shaped transverse groove 501 and the first arc-shaped transverse groove 502, that is, the transverse width of the groove is 1mm to 2mm; the distance between the ends of the two wave-shaped transverse grooves 501, that is, the distance between the two adjacent wave-shaped transverse grooves 501 close to the longitudinal groove 1 after fractalization is 3mm to 4mm; the bending angle of the first arc-shaped transverse groove 502 is 40° to 45°. The first curved fractal groove 5 constructs a local air circulation channel on the tire surface. When the vehicle is running, air can flow in the channel formed by the wave-shaped transverse groove 501 and the first arc-shaped transverse groove 502, increasing the air circulation in the area and taking away the heat generated by the tire's contact with the ground and inside. At the same time, the surface area of ​​the tire edge near the sidewall is increased. Based on heat transfer, the larger surface area allows heat to be transferred to the air more efficiently. Therefore, it can effectively prevent uneven wear in this area due to local friction overheating, and achieve good tire heat dissipation effect.

[0068] The second curved fractal grooves 6 extend to the first crest transverse grooves 601 and second crest transverse grooves 602 on either side of the longitudinal grooves 1. These grooves extend independently, meaning they are not connected to each other but extend to the bottom of the longitudinal grooves 1 on either side. There are also independent second curved transverse grooves 603. The widths of all three grooves, i.e., their transverse lengths, are 1 mm to 2 mm. The spacing between the ends of the first crest transverse grooves 601 (i.e., the side closest to the longitudinal grooves 1) is 6 mm to 7 mm, while the spacing between the ends of the second crest transverse grooves 602 (i.e., the side closest to the longitudinal grooves 1) is 1.5 mm to 2 mm. The second crest transverse grooves 602 have a curvature angle of 40° to 45°. These varying end-to-end spacings cause variations in the air flow rate and direction within the transverse grooves, creating turbulence and significantly enhancing heat exchange between the air and the tire surface. Heat can quickly diffuse across the entire tire surface through the channels connecting these transverse grooves and the longitudinal grooves 1, and then dissipate through air convection. This prevents heat accumulation in the center of the tire, which could affect overall performance, and achieves efficient heat dissipation.

[0069] The third curved fractal groove 7 consists of a wave-shaped transverse groove 701 that is symmetrical along the center line and a third arc-shaped transverse groove 702 distributed along its curved surface. The wave front end of the wave-shaped transverse groove 701 is aligned with the longitudinal groove 1. The widths of the wave-shaped transverse groove 701 and the third arc-shaped transverse groove 702 are both 1mm to 2mm. The centerline-symmetrical structure, combined with the connection between the wave-shaped transverse groove 701 and the longitudinal groove 1, allows air to form a stable and continuous airflow along the wavy groove during tire rotation. On the one hand, this helps to directly remove heat from the tire surface; on the other hand, it transfers heat to other parts of the tire through the longitudinal groove 1, optimizing the heat conduction path, achieving all-round heat conduction and heat dissipation, effectively maintaining tire temperature uniformity, and improving tire stability during high-speed driving and long-term use.

[0070] It should be noted that in Example 2, the first curved fractal groove 5, the second curved fractal groove 6 and the third curved fractal groove 7 are all fractal designs based on the ocean element. While ensuring performance, the grooves on each pattern block also have similarity and aesthetics.

[0071] Example 3

[0072] like Figure 4 As shown, the size and shape of the longitudinal groove 1 are the same as those of embodiment 1, while the first curved fractal groove 5, the second curved fractal groove 6 and the third curved fractal groove 7 are as shown in FIG. Figure 4 shown.

[0073] Specifically, the first curved fractal groove 5 includes a first canyon-line transverse groove 503, seven gentle slope transverse grooves 504, and flat valley-line transverse grooves 505. These multiple transverse grooves form a dense drainage network, with numerous channels that quickly disperse water from the tire's contact area with the ground, increasing drainage paths and improving drainage efficiency. The first canyon-line transverse groove 503 extends into the longitudinal groove 1, forming a canyon-like transverse groove composed of multiple contour lines. Its mid-width near the longitudinal groove 1, or the highest point of the canyon, is 11mm to 13mm. This 11mm to 13mm width allows water in the transverse groove to drain rapidly and efficiently into the longitudinal groove, which then efficiently drains the water from the tire contact area, effectively preventing the formation of a water film and reducing the risk of vehicle skidding. The gentle slope transverse groove 504, a long, inclined line, increases its angle with the horizontal line perpendicular to the sidewall from 53° to 80°. This angle change, combined with the groove width, facilitates smoother and faster drainage of water from the tire surface toward the sidewall under the influence of centrifugal force and gravity, accelerating drainage.

[0074] The first canyon-line transverse grooves 503 and the other transverse grooves work together to significantly increase the tire's contact area with the air. During driving, air can flow freely through these grooves, efficiently removing heat generated by the tire and improving heat dissipation efficiency. The gently sloping transverse grooves 504, combined with the groove width, create a complex airflow pattern, enhancing air convection and improving heat dissipation.

[0075] The second curved fractal groove 6 is centered on a mountaintop-line transverse groove 604, which resembles a spring on a mountaintop in the figure. It is surrounded by a gully-line transverse groove 605, a second canyon-line transverse groove 607, and a platform-line transverse groove 606. Like a "circle," this system collects water from the tire surface in all directions and then channels it out through the various transverse grooves.

[0076] The gully-line transverse grooves 605 extend from multiple lines to the bottom of the longitudinal grooves 1 on one side, the second canyon-line transverse grooves 607 extend to the bottom of the longitudinal grooves 1 on the other side, and the platform-line transverse grooves 606 extend to the bottom of the longitudinal grooves 1 on both sides. Combined with the 1mm to 1.5mm width of each groove, water can quickly drain into the longitudinal grooves from multiple directions, ensuring good drainage regardless of the tire's driving state, effectively dispersing water flow and preventing water accumulation.

[0077] Multiple transverse grooves connect to the longitudinal grooves, creating a three-dimensional heat dissipation channel on the tire surface and inside. Each transverse groove is 1mm to 1.5mm wide. The interconnected network allows air to flow freely through it, dissipating heat generated by different parts of the tire and improving the uniformity and effectiveness of heat dissipation. The surrounding groove structure significantly increases the contact area and contact time between the tire and the air. Combined with the groove width, it ensures more complete heat exchange between the tire and the air, facilitating rapid heat dissipation and reducing tire temperature.

[0078] The third curved fractal groove 7 includes two centrally symmetrical third canyon-line transverse grooves 703. This symmetrical structure ensures balanced drainage on both sides of the tire during rotation. Regardless of tire rotation, water is evenly drained from the center to both sides, preventing slippage caused by poor drainage on one side. Furthermore, the centrally symmetrical structure of the center tread block 4 ensures more balanced heat dissipation. The third canyon-line transverse grooves 703 on both sides allow air to flow evenly through both sides of the tire, removing an equal amount of heat, preventing local overheating and maintaining a stable overall tire temperature.

[0079] It should be noted that the widths of the first, second, and third curved fractal grooves 5, 6, and 7 are all 1 mm to 1.5 mm. The first, second, and third canyon-line transverse grooves 503, 607, and 703 are all identical in size and spacing. This means that the different transverse grooves on each of the five tread blocks are all designed in a fractal pattern, modeled after the contoured mountain terrain. This ensures performance while maintaining similarity and aesthetics across the grooves on each block.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tread pattern with a curved fractal structure, characterized in that: include: Four longitudinal grooves (1) are provided along the circumference of the tire, wherein the four longitudinal grooves (1) divide the tread into shoulder pattern blocks (2), inner pattern blocks (3) and middle pattern blocks (4); The middle pattern block (4) is the tire centerline, and the four longitudinal grooves (1) are symmetrical about the centerline of the middle pattern block (4); The two shoulder pattern blocks (2) are provided with first curved fractal grooves (5) symmetrically centered about the middle pattern block (4), and the first curved fractal grooves (5) extend to the sidewalls and the bottom of the longitudinal grooves (1); The two inner pattern blocks (3) are provided with second curved fractal grooves (6) symmetrically centered about the middle pattern block (4), and the second curved fractal grooves (6) extend to the bottoms of the longitudinal grooves (1) on both sides respectively; The middle pattern block (4) is provided with a third curved fractal groove (7) symmetrically about the center line, and the third curved fractal groove (7) extends to the groove bottom of the longitudinal grooves (1) on both sides. The longitudinal groove (1) includes a first groove wall (101) and a second groove wall (102), and the first groove wall (101) and the second groove wall (102) are both in a broken line shape; a first groove wall angle α formed between the first groove wall (101) and the tread is 18° to 23°, and a second groove wall angle β is 10° to 15°; a third groove wall angle γ formed between the second groove wall (102) and the tread is 10° to 15°, and a fourth groove wall angle θ is 18° to 23°; The width of the longitudinal groove (1) is 11 mm to 15 mm, and the depth of the longitudinal groove (1) is 13 mm to 20 mm; The bottom of the longitudinal groove (1) is semicircular in shape, and the diameter of the semicircular bottom of the longitudinal groove (1) is 3 to 8 mm. The first curved fractal groove (5) comprises two wave transverse grooves (501) extending to the sidewall and the longitudinal groove (1) respectively, the ends of the two wave transverse grooves (501) being connected, and the first curved fractal groove (5) further comprises an independent first arc-shaped transverse groove (502); The width of the wave transverse groove (501) and the first arc-shaped transverse groove (502) are both 1 mm to 2 mm; the distance between the ends of the two wave transverse grooves (501) is 3 mm to 4 mm, and the bending angle of the first arc-shaped transverse groove (502) is 40° to 45°; The second curved fractal groove (6) comprises a first wave crest transverse groove (601) extending to the longitudinal groove (1) on one side and a second wave crest transverse groove (602) extending to the longitudinal groove (1) on the other side; the second curved fractal groove (6) further comprises an independent second arc-shaped transverse groove (603); The widths of the first wave crest transverse groove (601), the second wave crest transverse groove (602) and the second arc-shaped transverse groove (603) are all 1 mm to 2 mm; the end spacing of the first wave crest transverse groove (601) is 6 mm to 7 mm, the end spacing of the second wave crest transverse groove (602) is 1.5 mm to 2 mm, and the bending angle of the second wave crest transverse groove (602) is 40° to 45°; The third curved fractal groove (7) comprises a wave transverse groove (701) symmetrical about the center line and a third arc-shaped transverse groove (702) distributed on the curved surface of the wave transverse groove (701), and the wave front end of the wave transverse groove (701) extends to the longitudinal groove (1); The width of the wave transverse groove (701) and the third arc-shaped transverse groove (702) are both 1 mm to 2 mm.

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