A trench bottom reinforcing tire

Abstract

The application discloses a kind of bottom of ditch reinforced tire, including: crown, side, bead and tread, the tread includes center block and shoulder block, and the center block and shoulder block are staggered to form groove between, the groove includes several circumferential grooves and several transverse grooves, the circumferential groove is formed along the tire circumferential direction, and the transverse groove is formed along the tire width direction;The bottom of the groove is provided with wedge, and the wedge is made of fiber reinforced composite material.The design of wedge can effectively prevent particulate matter from adhering in the tire tread groove, avoid the blockage and accumulation of particulate matter to the tire, and reduce the risk of crack formation.

Description

Technical Field

[0001] This application relates to the technical field of tires, specifically to a groove-reinforced tire. Background Technology

[0002] During vehicle operation, especially on rough road conditions such as when sand, pebbles, or other particles accumulate, these particles can easily adhere to the bottom of the tire tread grooves. Irregularly shaped, angular objects, in particular, can become embedded in the grooves. In such cases, these embedded objects typically cause blockages in the tire grooves and are difficult to remove; simply increasing the width or number of grooves cannot solve the problem.

[0003] If particles adhering to the bottom of the groove are not cleaned in time, they can form cracks at the adhesion points after prolonged driving. Over time, these cracks will continue to expand, which not only reduces tire lifespan but also increases the risk of tire blowout. Therefore, in existing technology, there is a need for a solution that can prevent particle adhesion and crack formation to improve tire lifespan and reduce the risk of tire blowout. Summary of the Invention

[0004] Therefore, it is necessary to propose a groove-reinforced tire to address the aforementioned technical problems.

[0005] The groove-reinforced tire includes: a crown, a sidewall, a bead, and a tread. The tread includes a center tread block and a shoulder tread block. Grooves are formed between the center tread block and the shoulder tread block. The grooves include several circumferential grooves and several lateral grooves. The circumferential grooves are formed along the circumferential direction of the tire, and the lateral grooves are formed along the width direction of the tire.

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

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

[0008] The wedge-shaped portion is provided in several circumferential grooves and several transverse grooves;

[0009] The insert is embedded in the tread and is integrally connected with the wedge-shaped part;

[0010] An adhesive portion is provided between the wedge-shaped portion and the bottom of the groove.

[0011] In some embodiments, the wedge-shaped portions extend in a strip shape and are distributed at the bottom and wall of a plurality of circumferential grooves and a plurality of transverse grooves.

[0012] In some embodiments, the angle between the trench wall and the vertical direction is α, and the value of α ranges from 1° to 20°.

[0013] The trench walls and bottom are connected and transitioned by fillet Rd, with the fillet Rd ranging from 0.5mm to 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 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 and the bottom of the groove is h, and the value of h ranges from 0.5 mm to 5 mm.

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

[0018] In some embodiments, the trench walls, trench bottom and wedge structure are connected and transitioned by fillets Rb and Rc, respectively, with the values ​​of fillets Rb and Rc ranging from 0.5mm to 5mm.

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

[0020] Preventing particulate matter adhesion: By incorporating wedge-shaped strips made of fiber-reinforced composite material at the bottom of the grooves, particulate matter can be effectively prevented from adhering to the tire tread grooves. This avoids the blockage and accumulation of particulate matter in the tire and reduces the risk of crack formation.

[0021] Increased lifespan: The addition of wedge-shaped strips prevents particles from embedding into the tire grooves and forming cracks while the vehicle is in motion. This helps reduce the propagation of groove cracks and extends tire life.

[0022] Reduced risk of tire blowout: This technology helps reduce the risk of tire blowouts by preventing crack formation and extending tire life. Since particulate matter cannot adhere to and form cracks, tire durability is improved under harsh road conditions.

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

[0024] In summary, this technical solution effectively prevents particulate matter adhesion and crack formation by using wedge-shaped strips made of fiber-reinforced composite materials, thereby improving tire lifespan and reducing the risk of tire blowout, while also enhancing vehicle driving stability. Attached Figure Description

[0025] Figure 1 This is a schematic diagram showing the tire tread in an exemplary embodiment of this application;

[0026] Figure 2 This is a schematic diagram illustrating the circumferential groove and wedge-shaped strip in an exemplary embodiment of this application;

[0027] Figure 3 This is a schematic diagram illustrating the circumferential groove and wedge-shaped strip in an exemplary embodiment of this application;

[0028] Figure 4 This is a schematic diagram illustrating the dimensions of the circumferential groove and wedge strip in an exemplary embodiment of this application.

[0029] In the diagram: 1. Circumferential groove; 2. Transverse groove; 3. Wedge-shaped strip; 31. Wedge-shaped part; 32. Embedded part; 4. Central patterned block; 5. Shoulder patterned block. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort 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," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation 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 explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] As described in the background section, during vehicle operation, especially under harsh road conditions such as the accumulation of sand, gravel, or other particles, these particles easily adhere to the bottom of the tire tread grooves. Irregularly shaped, prismatic objects, in particular, can become embedded in the grooves. In such cases, these embedded objects typically clog the tire grooves and are difficult to remove, even by simply increasing the width or number of grooves. If the particles attached to the bottom of the grooves are not cleaned in time, prolonged driving can lead to the formation of cracks at the attachment points. Over time, these cracks will continue to expand, not only reducing tire lifespan but also increasing the risk of tire blowout. Therefore, in the prior art, there is a need for a solution that can prevent particle adhesion and crack formation to improve tire lifespan and reduce the risk of tire blowout.

[0034] This application presents a groove-reinforced tire designed to prevent particulate matter adhesion and reduce crack formation. The groove-reinforced tire includes a crown, sidewall, bead, and tread. (Refer to...) Figure 1 and Figure 2 The tread includes a central tread block 4 and a shoulder tread block 5, with grooves intersecting between the central tread block 4 and the shoulder tread block 5. The grooves include several circumferential grooves 1 and several lateral grooves 2. The circumferential grooves 1 are formed along the circumferential direction of the tire, and the lateral grooves 2 are formed along the width direction of the tire.

[0035] A wedge-shaped strip 3 made of fiber-reinforced composite material is provided at the bottom of the trench. (Refer 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 shape and is distributed at the bottom and walls of several circumferential grooves 1 and several 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, preventing them from separating. The adhesive portion is located between the wedge-shaped portion 31 and the bottom of the groove. Specifically, the adhesive portion is an adhesive layer formed after the tire-specific adhesive has cured, which further enhances the connection stability between the wedge-shaped portion 31 and the tread, preventing them from separating, and also prevents particulate matter from entering between the wedge-shaped portion 31 and the groove.

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

[0037] Reference Figure 4 The outer surface of the wedge-shaped part 31 is formed as a curved protrusion, and the value of its curve radius Ra is in the range of 15mm-100mm.

[0038] The angle between the trench wall and the vertical direction is α, and the value of α ranges from 1° to 20°. The trench wall and the trench bottom are connected and transitioned by a fillet Rd, and the value of the fillet Rd ranges from 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 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 of h ranges from 0.5 mm to 5 mm.

[0041] The trench walls and bottom are connected to the wedge structure using fillets Rb and Rc, respectively, with the values ​​of fillets Rb and Rc ranging from 0.5mm to 5mm.

[0042] This embodiment of the groove-reinforced tire has the following technical advantages:

[0043] Preventing particulate matter adhesion: The design of the wedge strip 3 can effectively prevent particulate matter from adhering to the tire tread grooves, avoiding the blockage and accumulation of particulate matter on the tire, and reducing the risk of crack formation.

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

[0045] Reduced risk of blowout: By preventing crack formation and extending tire life, this groove-reinforced tire helps reduce the risk of blowout and improves tire durability.

[0046] Improved 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 descriptions are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A groove-reinforced tire, comprising: The tire crown, sidewall, bead, and tread are characterized in that, The tread includes a center tread block and a shoulder tread block, and grooves are formed alternately between the center tread block and the shoulder tread block. The grooves include a plurality of circumferential grooves and a plurality of lateral grooves. The circumferential grooves are formed along the circumferential direction of the tire, and the lateral grooves are formed along the width direction of the tire. The bottom of the groove is provided with a wedge-shaped strip, which is made of fiber-reinforced composite material; The wedge-shaped strip includes: A wedge-shaped portion is disposed in a plurality of the circumferential grooves and a plurality of the transverse grooves; An insert portion is embedded in the tread and integrally connected with the wedge-shaped portion; An adhesive portion is disposed between the wedge-shaped portion and the bottom of the groove; 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 part at the bottom of the groove is L2. The ratio of L2 to L1 ranges from 0.45 to 0.75; The outer surface of the wedge-shaped part is formed as a curved protrusion, and the value of its curve radius Ra is in the range of 15mm-100mm; The trench walls and bottom are connected to the wedge structure using fillets Rb and Rc, respectively, with the values ​​of fillets Rb and Rc ranging from 0.5mm to 5mm.

2. The groove-reinforced tire according to claim 1, characterized in that... The wedge-shaped portion extends in a strip shape and is distributed at the bottom and wall of several circumferential grooves and several transverse grooves.

3. The groove-reinforced tire according to claim 1, characterized in that... The angle between the trench wall and the vertical direction is α, and the value of α ranges from 1° to 20°. The trench wall and the trench bottom are connected and transitioned by a fillet Rd, the value of which ranges from 0.5mm to 6mm.

4. The groove-reinforced tire according to claim 1, characterized in that... The distance between the endpoint n of the wedge and the bottom of the groove is h, and the value of h ranges from 0.5mm to 5mm.

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