Tire with reinforced groove base

Abstract

A tire with a reinforced groove base, the tire comprising a tire crown, a tire sidewall, a tire bead and a tire tread, wherein the tire tread comprises central pattern blocks (4) and shoulder pattern blocks (5), grooves are formed between the central pattern blocks (4) and the shoulder pattern blocks (5) in a staggered manner, the grooves comprise a plurality of circumferential grooves (1) and a plurality of transverse grooves (2), the circumferential grooves (1) are formed in the circumferential direction of the tire, and the transverse grooves (2) are formed in the width direction of the tire; and wedge-shaped strips (3) are provided at bases of the grooves, and the wedge-shaped strips (3) are made of a fiber reinforced composite material. By means of the design of the wedge-shaped strips (3), particulate matter can be effectively prevented from being attached to the grooves in the tire tread, blocking and accumulation of the particulate matter on the tire are avoided, and the risk of crack formation is reduced.

Description

Groove bottom reinforced tire Technical Field

[0001] The present application relates to the technical field of tires, and in particular to a groove bottom reinforced tire. Background Art

[0002] During driving, especially on harsh road conditions, such as those with accumulated sand, gravel, and other particles, the bottom of the tire tread grooves can easily become lodged with these particles. Irregularly shaped, angular objects are particularly prone to becoming embedded in the grooves. In such cases, these embedded objects often clog the grooves and are difficult to remove. Simply increasing the width or number of grooves alone cannot resolve this problem.

[0003] If particles adhering to the groove bottom aren't promptly removed, prolonged driving can lead to cracks forming in the adhering areas. These cracks can expand over time, reducing the tire's service life and increasing the risk of blowouts. Therefore, a solution is needed to prevent particle adhesion and crack formation, thereby extending tire service life and reducing the risk of blowouts. Summary of the Invention

[0004] Based on this, it is necessary to propose a groove bottom reinforced tire to address the above technical problems.

[0005] The groove bottom reinforced tire comprises: a crown, a sidewall, a bead and a tread, the tread comprising a central pattern block and a shoulder pattern block, grooves are staggered between the central pattern block and the shoulder pattern block, the grooves comprising a plurality of circumferential grooves and a plurality of transverse grooves, the circumferential grooves being formed along the circumferential direction of the tire, and the transverse grooves being formed along the width direction of the tire;

[0006] The bottom of the groove is provided with a wedge-shaped strip made of fiber reinforced composite material. In some embodiments,

[0007] In some embodiments, the wedge strip comprises:

[0008] a wedge-shaped portion disposed in the plurality of circumferential grooves and the plurality of transverse grooves;

[0009] An embedded portion, embedded in the tread and integrally connected to the wedge-shaped portion;

[0010] The bonding portion is arranged between the wedge-shaped portion and the bottom of the groove.

[0011] In some embodiments, the wedge-shaped portions extend in a strip-like manner and are distributed on the bottoms and walls of a plurality of circumferential grooves and a plurality of transverse grooves.

[0012] In some embodiments, the angle between the groove wall and the vertical direction is α, and the value range of α is 1°-20°;

[0013] The groove wall and groove bottom are connected and transitioned through the rounded corner Rd, and the value range of the rounded corner Rd is 0.5mm-6mm.

[0014] In some embodiments, the width of the groove is L1, and the distance between the top of the groove wall and the end point m of the wedge-shaped portion is L2;

[0015] The ratio of L2 to L1 ranges from 0.45 to 0.75.

[0016] In some embodiments, the distance between the end point n of the wedge-shaped portion and the bottom of the groove is h, and the value range of h is 0.5 mm-5 mm.

[0017] In some embodiments, the outer side surface of the wedge-shaped portion is formed as a curved protrusion, and the curve radius Ra thereof ranges from 15 mm to 100 mm.

[0018] In some embodiments, the groove wall, groove bottom and wedge-shaped structure are connected and transitioned by using rounded corners Rb and Rc, respectively. The value range of the rounded corners Rb and Rc is 0.5 mm-5 mm.

[0019] The technical solution proposed in this application has at least the following technical effects:

[0020] Preventing particle adhesion: By placing wedge-shaped strips made of fiber-reinforced composite materials at the bottom of the groove, particles can be effectively prevented from adhering to the tire tread groove. This can prevent particles from blocking and accumulating in the tire and reduce the risk of crack formation.

[0021] Increased service life: The addition of wedge strips can prevent particles from embedding in the tire groove bottom and forming cracks while the vehicle is driving. This helps reduce the expansion of groove bottom cracks and extend the service life of the tire.

[0022] Reduced risk of tire blowouts: This technology helps reduce the risk of tire blowouts by preventing crack formation and extending tire life. Because particles are unable to attach and form cracks, tire durability in adverse road conditions is improved.

[0023] Improved driving stability: The introduction of a wedge-shaped structure can further increase the tire's grip, thereby improving the vehicle's driving stability on adverse road conditions. This has a positive impact on providing a safer and more comfortable driving experience.

[0024] In summary, this technical solution effectively prevents particle adhesion and crack formation by using wedge-shaped strips made of fiber-reinforced composite materials, thereby increasing the service life of tires and reducing the risk of tire blowouts, while also enhancing the vehicle's driving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG1 is a schematic diagram showing a tire tread in an exemplary embodiment of the present application;

[0026] FIG2 is a schematic diagram showing circumferential grooves and wedge strips in an exemplary embodiment of the present application;

[0027] FIG3 is a schematic diagram showing circumferential grooves and wedge strips in an exemplary embodiment of the present application;

[0028] FIG. 4 is a schematic diagram showing the dimensions of the circumferential groove and the wedge strip in an exemplary embodiment of the present application.

[0029] In the figure: 1. Circumferential groove; 2. Transverse groove; 3. Wedge strip; 31. Wedge portion; 32. Embedded portion; 4. Center pattern block; 5. Shoulder pattern block. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "two ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of this application and simplify the description. They do not 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 this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0033] As described in the background art, during vehicle driving, especially under harsh road conditions, such as when there is accumulation of particles such as sand and gravel, the bottom of the tire tread grooves can easily be attached by these particles. In particular, irregularly shaped angular block-like objects may be embedded in the groove bottom. In this case, these embedded objects usually cause blockage of the tire grooves and are difficult to discharge. Even simply increasing the width or number of the grooves cannot solve this problem. If the particles attached to the groove bottom are not cleaned in time, cracks will form at the attached parts after long-term rolling driving. Over time, these cracks will continue to expand, which not only reduces the service life of the tire, but also increases the risk of tire blowout. Therefore, in the prior art, there is a need for a solution that can prevent the adhesion of particles and the formation of cracks to increase the service life of the tire and reduce the risk of tire blowout.

[0034] This application designs a groove-bottom reinforced tire to prevent particle adhesion and reduce crack formation. This groove-bottom reinforced tire comprises a crown, sidewalls, beads, and a tread. Referring to Figures 1 and 2 , the tread includes a center tread block 4 and shoulder tread blocks 5, with grooves interlaced between the center and shoulder blocks 4 and 5. The grooves include several circumferential grooves 1 and several transverse grooves 2. The circumferential grooves 1 run along the tire's circumference, while the transverse grooves 2 run along the tire's width.

[0035] A wedge-shaped strip 3 made of fiber-reinforced composite material is provided at the bottom of the groove. Referring to Figure 3, the wedge-shaped strip 3 includes a wedge-shaped portion 31, an embedded portion 32 and an adhesive portion. The wedge-shaped portion 31 extends in a strip-shaped manner and is distributed on the bottom and wall of a number of circumferential grooves 1 and a number of transverse grooves 2. The embedded portion 32 is embedded in the tread and integrally connected with the wedge-shaped portion 31 to enhance the connection stability between the wedge-shaped portion 31 and the tread and prevent the two from separating; the adhesive portion is provided between the wedge-shaped portion 31 and the bottom of the groove. The adhesive portion is specifically an adhesive layer formed after the tire-specific adhesive is cured, which can further enhance the connection stability between the wedge-shaped portion 31 and the tread and prevent the two from separating. It can also prevent particulate matter from entering between the wedge-shaped portion 31 and the groove.

[0036] Furthermore, the fiber-reinforced composite material used in the wedge-shaped strip 3 may be any one of a carbon fiber-reinforced polymer composite material, a glass fiber-reinforced polymer composite material, a carbon fiber-reinforced ceramic composite material, and a carbon fiber-reinforced metal composite material.

[0037] 4 , the outer side surface of the wedge-shaped portion 31 is formed as a curved protrusion, and the radius Ra of the curve is in the range of 15 mm to 100 mm.

[0038] The angle between the groove wall and the vertical direction is α, and the value range of α is 1° to 20°. The groove wall and the groove bottom are connected and transitioned by a rounded corner Rd, and the value range of the rounded corner Rd is 0.5mm to 6mm.

[0039] The width of the groove is L1, and the distance between the top of the groove wall and the end point m of the wedge strip 3 is L2. The ratio of L2 to L1 ranges from 0.45 to 0.75.

[0040] The distance between the end point n of the wedge strip 3 and the bottom of the groove is h, and the value range of h is 0.5 mm to 5 mm.

[0041] The groove wall, groove bottom and wedge-shaped structure are connected and transitioned by fillets Rb and Rc respectively, and the value range of fillets Rb and Rc is 0.5mm to 5mm.

[0042] The embodiment of the groove bottom reinforced tire has the following technical effects:

[0043] Preventing particles from adhering: The design of the wedge strip 3 can effectively prevent particles from adhering to the tire tread grooves, avoid the blockage and accumulation of particles on the tire, and reduce the risk of crack formation.

[0044] Increased service life: By preventing particles from embedding into the groove bottom and forming cracks, the wedge strip 3 can extend the service life of the tire and reduce the expansion of groove bottom cracks.

[0045] Reduced risk of flat tires: This groove-reinforced tire helps reduce the risk of flat tires and improves tire durability by preventing crack formation and extending tire life.

[0046] Improve driving stability: The introduction of the wedge structure can increase the tire's grip, improve the vehicle's driving stability under harsh road conditions, and provide a safer and more comfortable driving experience.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A groove bottom reinforced tire, comprising: The crown, sidewalls, beads and tread are characterized by: The tread comprises a central pattern block and a shoulder pattern block, grooves are staggered between the central pattern block and the shoulder pattern block, the grooves comprise a plurality of circumferential grooves and a plurality of transverse grooves, the circumferential grooves are formed along the circumferential direction of the tire, and the transverse grooves are formed along the width direction of the tire; A wedge-shaped strip is arranged at the bottom of the groove, and the wedge-shaped strip is made of a fiber-reinforced composite material.

2. The groove bottom reinforced tire according to claim 1, characterized in that , the wedge-shaped strip comprises: a wedge-shaped portion, disposed in the plurality of circumferential grooves and the plurality of transverse grooves; An embedding portion, embedded in the tread and integrally connected with the wedge-shaped portion; The bonding portion is arranged between the wedge-shaped portion and the bottom of the groove.

3. The groove bottom reinforced tire according to claim 2, characterized in that The wedge-shaped portion extends in a strip-like manner and is distributed on the bottom and wall of a plurality of circumferential grooves and a plurality of transverse grooves.

4. The groove bottom reinforced tire according to claim 2, characterized in that , the angle between the groove wall and the vertical direction is α, and the value range of α is 1°-20°; The groove wall and the groove bottom are connected and transitioned by a rounded corner Rd, and the value range of the rounded corner Rd is 0.5mm-6mm.

5. The groove bottom reinforced tire according to claim 2, characterized in that , the width of the groove is L1, and the distance between the top of the groove wall and the end point m of the wedge-shaped portion is L2; The ratio of L2 to L1 ranges from 0.45 to 0.

75.

6. The groove bottom reinforced tire according to claim 2, characterized in that , the distance between the end point n of the wedge-shaped portion and the bottom of the groove is h, and the value range of h is 0.5mm-5mm.

7. The groove bottom reinforced tire according to claim 2, characterized in that The outer side surface of the wedge-shaped portion is formed as a curved protrusion, and the radius Ra of the curve ranges from 15mm to 100mm.

8. The groove bottom reinforced tire according to claim 2, characterized in that The groove wall, groove bottom and wedge-shaped structure are connected and transitioned by fillets Rb and Rc respectively, and the value range of fillets Rb and Rc is 0.5mm-5mm.

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