Tire

Abstract

The utility model relates to the field of tires, in particular to a tire. The tire is provided with a circumferential surface, and a first longitudinal groove, a second longitudinal groove, a third longitudinal groove and a fourth longitudinal groove which are spaced are formed in the circumferential surface in the direction from inside to outside so as to divide the circumferential surface into an inner side tire shoulder area, an inner side rib area, a central rib area, an outer side rib area and an outer side tire shoulder area; the inner side tire shoulder area is provided with a plurality of first pattern grooves; the inner side rib area is provided with a plurality of first cutter grooves; the central rib region is provided with a plurality of second cutter grooves and third pattern grooves; the outer rib region is provided with a plurality of third cutter grooves and fourth pattern grooves; the outer tire shoulder area is provided with a plurality of second pattern grooves; the width of any one of the first cutter groove, the second cutter groove and the third cutter groove is smaller than the width of the third pattern groove, and the width of any one of the first cutter groove, the second cutter groove and the third cutter groove is smaller than the width of the fourth pattern groove. The technical effects of reducing noise and enhancing road holding force are achieved.

Description

Technical Field

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

[0002] As people's requirements for car performance increase, ordinary tires can no longer meet people's requirements for different usage scenarios. Therefore, it is necessary to develop a tire that can be precisely controlled, reduce noise, and enhance grip on urban roads based on the needs of car owners, so that the tire can be controlled more freely and the driving experience is better. Utility Model Content

[0003] The present application provides a tire, which solves the technical problem of poor tire performance and achieves the technical effects of reducing noise and enhancing grip.

[0004] In order to achieve the above objectives, the main technical solutions adopted in this application include:

[0005] The embodiment of the present application provides a tire, the tire having a circumferential surface, along the direction from inside to outside, the circumferential surface is provided with a first longitudinal groove, a second longitudinal groove, a third longitudinal groove and a fourth longitudinal groove spaced apart from each other, so as to divide the circumferential surface into an inner shoulder area, an inner rib area, a central rib area, an outer rib area and an outer shoulder area; the inner shoulder area has a plurality of first pattern grooves, and the plurality of first pattern grooves are spaced apart along the circumference of the tire; the inner rib area has a plurality of first knife grooves, and the plurality of first knife grooves are spaced apart along the circumference of the tire; the central rib area has a plurality of first pattern portions, and the plurality of first pattern portions The tire is arranged at intervals along the circumference; the outer rib area has a plurality of second pattern portions, and the plurality of second pattern portions are arranged at intervals along the circumference of the tire; the outer shoulder area has a plurality of second pattern grooves, and the plurality of second pattern grooves are arranged at intervals along the circumference of the tire; wherein the first pattern portion includes a second sipe and a third pattern groove, the second pattern portion includes a third sipe and a fourth pattern groove, the width of any one of the first sipe, the second sipe and the third sipe is smaller than the width of the third pattern groove, and the width of any one of the first sipe, the second sipe and the third sipe is smaller than the width of the fourth pattern groove.

[0006] The tire proposed in this embodiment is provided with a first sipe in the inner rib region, a second sipe and a third tread groove in the central rib region, and a third sipe and a fourth tread groove in the outer rib region. The width of any one of the first sipe, the second sipe and the third tread groove is smaller than the width of the third tread groove. The width of any one of the first sipe, the second sipe and the third tread groove is smaller than the width of the fourth tread groove. When the tire is pressed on the ground, the first sipe, the second sipe, the third sipe, the third tread groove and the fourth tread groove can destroy the water film on the road surface, improve the drainage performance, increase the tire grip, and improve the safety performance of the tire; and the tire can be divided into multiple blocks, and air blocks can be formed between the blocks to reduce the noise generated by air squeezing, thereby achieving the purpose of effective noise reduction.

[0007] Optionally, the extension direction of the first sipe is inclined relative to the axis of the tire. The first sipe inclined relative to the axial direction of the tire can effectively reduce the tearing of the tire during use.

[0008] Optionally, the inner end of the first sipe is connected to the first longitudinal groove, and the outer end of the first sipe is connected to the second longitudinal groove. The two ends of the first sipe are connected to the first longitudinal groove and the second longitudinal groove respectively, and when the tire is pressed on the ground, the second sipe can destroy the water film on the ground and assist in drainage, thereby improving the grip of the tire.

[0009] Optionally, the second sipe extends in a direction inclined relative to the axial direction of the tire, and the third groove extends in a direction inclined relative to the axial direction of the tire. The second sipe and the third groove inclined relative to the axis of the tire can effectively reduce the tearing of the tire during use.

[0010] Optionally, the inclination angle of the extension direction of the second sipe relative to the axial direction of the tire is the same as the inclination angle of the extension direction of the third groove relative to the axial direction of the tire. The second sipe and the third groove with the same inclination angle can reduce the friction and rolling resistance between the tire and the ground.

[0011] Optionally, the inner end of the second sipe is connected to the second longitudinal groove, and the outer end of the second sipe is connected to the third longitudinal groove; the inner end of the third pattern groove is connected to the second longitudinal groove, and the outer end of the third pattern groove is spaced from the third longitudinal groove. The wider third pattern groove is connected to the second longitudinal groove to improve the drainage capacity of the second longitudinal groove, and the two ends of the second sipe are respectively connected to the second longitudinal groove and the third longitudinal groove to assist the drainage of the second longitudinal and transverse grooves and the third longitudinal groove. When the tire is pressed on the ground, the second sipe and the third pattern groove can destroy the water film on the ground and assist drainage, thereby improving the grip of the tire.

[0012] Optionally, the extension direction of the third sipe is inclined relative to the axis of the tire, and the extension direction of the fourth groove is inclined relative to the axial direction of the tire. The inclined third sipe and fourth groove can improve the tear resistance of the tire during use.

[0013] Optionally, the inclination angle of the extending direction of the third sipe compared to the axial direction of the tire is the same as the inclination angle of the extending direction of the fourth groove compared to the axial direction of the tire. The third sipe and the fourth groove with the same inclination angle can reduce the friction and rolling resistance between the tire and the ground.

[0014] Optionally, the inner end of the third sipe is connected to the third longitudinal groove, and the outer end of the third sipe is connected to the fourth longitudinal groove; the inner end of the fourth groove is spaced from the third longitudinal groove, and the outer end of the fourth groove is connected to the fourth longitudinal groove. When the tire is pressed on the ground, the third sipe and the fourth groove can destroy the water film on the ground and assist in drainage, thereby improving the grip of the tire; and the third sipe and the fourth groove arranged obliquely can improve the tear resistance of the tire during use.

[0015] Optionally, the outer end of the first groove is connected to the first longitudinal groove; the inner end of the second groove is connected to the fourth longitudinal groove. The outer end of the first groove is connected to the first longitudinal groove, and when the tire rolls, a closed tubular area is formed between the first longitudinal groove that contacts the ground and the ground, and the outer end of the second groove is connected to the fourth longitudinal groove, and when the tire rolls, a closed tubular area is formed between the fourth longitudinal groove that contacts the ground and the ground. The first groove can assist the first longitudinal groove in drainage, and the second groove can assist the fourth longitudinal groove in drainage, thereby improving the tire's grip and drainage capabilities, and enhancing driving comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the structure of the tire of this application;

[0018] Figure 2 This is a schematic diagram of the local structure of the tire surface of this application.

[0019] [Description of Reference Numerals]

[0020] 1: first longitudinal groove; 2: second longitudinal groove; 3: third longitudinal groove; 4: fourth longitudinal groove; 5: inner shoulder area; 51: first tread groove; 6: inner rib area; 61: first knife groove; 7: central rib area; 71: second knife groove; 72: third tread groove; 8: outer rib area; 81: third knife groove; 82: fourth tread groove; 9: outer shoulder area; 91: second tread groove. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0022] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0023] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0024] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0026] The term "multiple" as used in this application refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple sheets" refers to more than two sheets (including two sheets).

[0027] Based on people's requirements for vehicle driving comfort and safety, it is necessary to develop a high-performance tire with better grip pattern to achieve precise control, which is specifically manifested in providing more precise control and better stability during high-speed steering and cornering. Multiple geometric pattern grooves cut the water film at multiple angles at different positions on the tread to ensure effective contact with the road surface and achieve reliable grip, thereby ensuring that the tire has excellent drainage performance when it rains, and has stable cornering performance and handling performance on dry and wet roads, and provides a relatively comfortable and quiet driving experience when driving at high speeds.

[0028] refer to Figure 1 and Figure 2, the embodiment of the present application provides a tire, the tire has a circumferential surface, wherein the position installed on the inner side of the vehicle is the inner side of the tire, and the position installed on the outer side of the vehicle is the outer side of the tire. Along the direction from the inside to the outside, the circumferential surface is provided with a first longitudinal groove 1, a second longitudinal groove 2, a third longitudinal groove 3 and a fourth longitudinal groove 4 spaced apart from each other, so as to divide the circumferential surface into an inner shoulder area 5, an inner rib area 6, a central rib area 7, an outer rib area 8 and an outer shoulder area 9. That is to say, along the direction from the inside to the outside, the inner shoulder area 5, the first longitudinal groove 1, the inner rib area 6, the second longitudinal groove 2, the central rib area 7, the third longitudinal groove 3, the outer rib area 8, the fourth longitudinal groove 4 and the outer shoulder area 9 are arranged in sequence. The first longitudinal groove 1, the second longitudinal groove 2, the third longitudinal groove 3 and the fourth longitudinal groove 4 extend along the circumferential direction of the tire, and are arranged at intervals along the direction from the inside to the outside of the tire. The first longitudinal groove 1, the second longitudinal groove 2, the third longitudinal groove 3 and the fourth longitudinal groove 4 are main grooves of the tire, which can provide good drainage performance, improve the braking and braking of the tire when the road surface is wet, and improve driving safety. An inner rib area 6 is provided between the first longitudinal groove 1 and the second longitudinal groove 2, a central rib area 7 is provided between the second longitudinal groove 2 and the third longitudinal groove 3, and an outer rib area 8 is provided between the third longitudinal groove 3 and the fourth longitudinal groove 4. The wider inner rib area 6, the central rib area 7 and the outer rib area 8 increase the contact area with the ground, which can increase the wear mileage while reducing the rolling resistance, and improve the cruising range of the vehicle. It should be understood that the width of any one of the first longitudinal groove 1, the second longitudinal groove 2, the third longitudinal groove 3 and the fourth longitudinal groove 4 is greater than the width of any one of the patterns in the inner shoulder area 5, the inner rib area 6, the central rib area 7, the outer rib area 8 and the outer shoulder area 9, and the above-mentioned pattern includes a pattern groove or a knife groove.

[0029] The inner shoulder area 5 has a plurality of first tread grooves 51, which are arranged at intervals along the circumference of the tire; the inner rib area 6 has a plurality of first sipes 61, which are arranged at intervals along the circumference of the tire; the central rib area 7 has a plurality of first pattern portions, which are arranged at intervals along the circumference of the tire; the outer rib area 8 has a plurality of second pattern portions, which are arranged at intervals along the circumference of the tire; the outer shoulder area 9 has a plurality of second pattern grooves 91, which are arranged at intervals along the circumference of the tire; wherein the first pattern portion includes the second sipe 71 and the third sipe 72, the second pattern portion includes the third sipe 81 and the fourth sipe 82, the width of any one of the first sipe 61, the second sipe 71 and the third sipe 81 is smaller than the width of the third sipe 72, and the width of any one of the first sipe 61, the second sipe 71 and the third sipe 81 is smaller than the width of the fourth sipe 82.

[0030] The wide inner rib area 6, the central rib area 7 and the outer rib area 8 are arranged in the center of the tire to increase the tire base area, which can increase the wear mileage while reducing the rolling resistance, and improve the vehicle's cruising range; and can improve the grip to achieve instant response, making wet braking more agile. The multiple first grooves 51 located in the inner shoulder area 5 and the multiple second grooves 91 located in the outer shoulder area 9 extend along the width direction of the tire from the inside to the outside, which can assist in drainage and improve the tire's grip. In addition, the extension direction of the first grooves 51 and the second grooves 91 is at an angle to the rolling direction of the tire, which can enhance the tire's grip and effectively prevent side slip. The first sipe 61, the second sipe 71, the third sipe 81, the third groove 72 and the fourth groove 82 divide the tire into multiple small areas, each of which is separated from the other, and the air is blocked between the small areas, reducing the noise generated by air squeezing, thereby achieving noise reduction; at the same time, it can respond to the change of operation immediately, and can start and stop quickly on both dry and wet roads, effectively preventing hydroplaning and increasing wetland safety. The first groove 51, the second groove 91, the first sipe 61, the second sipe 71, the third sipe 81, the third groove 72 and the fourth groove 82 on the entire tire adopt a variety of pitches, which ensures grip while improving driving comfort, reducing noise and improving vehicle endurance performance.

[0031] Specifically, along the direction from the inside to the outside of the tire, the width of the fourth longitudinal groove 4 on the outside is the smallest, and the main function of the outside is grip. The narrower fourth longitudinal groove 4 on the outside can increase the ground contact area of ​​the outer area, increase the outer shoulder rigidity, and improve the grip performance; the width of the first longitudinal groove 1, the second longitudinal groove 2 and the third longitudinal groove 3 on the inside is wider, and the main function of the inside is drainage. The wider first longitudinal groove 1, the second longitudinal groove 2 and the third longitudinal groove 3 on the inside can improve the drainage performance.

[0032] In the tire proposed in this embodiment, the inner rib region 6 is provided with a first sipe 61, the central rib region 7 is provided with a second sipe 71 and a third groove 72, and the outer rib region 8 is provided with a third sipe 81 and a fourth groove 82. The width of any one of the first sipe 61, the second sipe 71 and the third sipe 81 is smaller than the width of the third groove 72. The width of any one of the first sipe 61, the second sipe 71 and the third sipe 81 is smaller than the width of the fourth groove 82. The wider third groove 72 and the fourth groove 82 have better drainage performance and better assist drainage. The first sipe 61, the second sipe 71, the third sipe 81, the third groove 72 and the fourth groove 82 can destroy the water film on the road surface, improve the drainage performance, increase the tire grip, and improve the safety performance of the tire; and can divide the tire into multiple blocks, and form air blocking between the blocks to reduce the noise generated by air compression, thereby achieving the purpose of effective noise reduction. The tire in this embodiment can improve the grip performance, precise control, and reduce rolling resistance and noise.

[0033] Optionally, the extension direction of the first sipe 61 is inclined relative to the axis of the tire. The first sipe 61 has an angle with the axis of the tire, that is, along the tire width direction from the inside to the outside, the first sipe 61 has an angle with the width of the tire, wherein the angle ranges from 35 degrees to 45 degrees, such as 40 degrees. The first sipe 61 inclined relative to the axial direction of the tire can effectively reduce the tearing generated by the tire during use.

[0034] Optionally, the inner end of the first sipe 61 is connected to the first longitudinal groove 1, and the outer end of the first sipe 61 is connected to the second longitudinal groove 2. The two ends of the first sipe 61 are connected to the first longitudinal groove 1 and the second longitudinal groove 2 respectively, and when the tire is pressed on the ground, the second sipe 71 can destroy the water film on the ground and assist in drainage, thereby improving the grip of the tire.

[0035] Optionally, the extension direction of the second sipe 71 is inclined relative to the axial direction of the tire, and the extension direction of the third groove 72 is inclined relative to the axial direction of the tire. That is, the second sipe 71 has an angle with the axis of the tire, and the third groove 72 has an angle with the axis of the tire, that is, along the tire width direction from the inside to the outside, the second sipe 71 has an angle with the width of the tire, and the third groove 72 has an angle with the width of the tire, wherein the angle ranges from 35 degrees to 45 degrees, such as 40 degrees. The second sipe 71 and the third groove 72 inclined relative to the axis of the tire can effectively reduce the tearing generated by the tire during use, and make the tire have better grip and improve the safety factor. The second sipe 71 and the third groove 72 are spaced apart along the axial direction of the tire, which can divide the inner rib area 6 into more small blocks, better form air resistance, and achieve the purpose of noise reduction.

[0036] Optionally, the inclination angle of the extension direction of the second sipe 71 compared to the axial direction of the tire is the same as the inclination angle of the extension direction of the third tread groove 72 compared to the axial direction of the tire. The second sipe 71 and the third tread groove 72 are spaced apart along the circumferential direction of the tire, dividing the central rib area 7 into a plurality of independent areas, which can effectively block the air flow between the areas and reduce the noise generated by air squeezing. In addition, the second sipe 71 and the third tread groove 72 have the same inclination angle, thereby reducing the friction and rolling resistance between the tire and the ground.

[0037] Optionally, the inner end of the second sipe 71 is connected to the second longitudinal groove 2, and the outer end of the second sipe 71 is connected to the third longitudinal groove 3; the inner end of the third groove 72 is connected to the second longitudinal groove 2, and the outer end of the third groove 72 is spaced from the third longitudinal groove 3. The inner end of the third groove 72 is connected to the second longitudinal groove 2, and extends from the second longitudinal groove 2 toward the outside of the central rib area 7, and there is a gap between the outer end of the third groove 72 and the third longitudinal groove 3. In other words, the third groove 72 does not penetrate the central rib area 7, and an air block is formed between the outer end of the third groove 72 and the central rib area 7 to achieve noise reduction. The inner end of the wider third groove 72 is connected to the second longitudinal groove 2, which can improve the drainage performance of the second longitudinal groove 2, enhance the grip, and shorten the braking distance. The two ends of the second sipe 71 are respectively connected to the second longitudinal groove 2 and the third longitudinal groove 3, which can assist the second longitudinal groove 2 and the third longitudinal groove 3 in drainage. When the tire is pressed against the ground, the second sipes 71 and the third grooves 72 can destroy the water film on the ground and assist in drainage, thereby improving the grip of the tire.

[0038] Optionally, the extending direction of the third sipe 81 is inclined relative to the tire axis, and the extending direction of the fourth groove 82 is inclined relative to the tire axial direction. The inclined third sipe 81 and fourth groove 82 can improve the tear resistance of the tire during use.

[0039] Optionally, the inclination angle of the extending direction of the third sipe 81 relative to the axial direction of the tire is the same as the inclination angle of the extending direction of the fourth groove 82 relative to the axial direction of the tire. The third sipe 81 and the fourth groove 82 with the same inclination angle can reduce the friction and rolling resistance between the tire and the ground.

[0040] Optionally, the inner end of the third sipe 81 is connected to the third longitudinal groove 3, and the outer end of the third sipe 81 is connected to the fourth longitudinal groove 4; the inner end of the fourth groove 82 is spaced apart from the third longitudinal groove 3, and the outer end of the fourth groove 82 is connected to the fourth longitudinal groove 4. The fourth groove 82 is connected to the fourth longitudinal groove 4 and spaced apart from the third longitudinal groove 3, that is, the fourth groove 82 extends from the fourth longitudinal groove 4 to the inner side of the outer rib area 8, and the fourth groove 82 does not penetrate the outer rib area 8, and there is a gap between the inner end of the fourth groove 82 and the third longitudinal groove 3, and an air block is formed between the inner end of the fourth groove 82 and the outer rib area 8 to achieve noise reduction. In addition, the outer end of the wider fourth groove 82 is connected to the fourth longitudinal groove 4, which can improve the drainage performance of the fourth longitudinal groove 4, increase the grip, and shorten the braking distance. The two ends of the third sipe 81 are connected to the third longitudinal groove 3 and the fourth longitudinal groove 4 respectively, and the third sipe 81 can assist the third longitudinal groove 3 and the fourth longitudinal groove 4 in draining water. When the tire is pressed on the ground, the third sipe 81 and the fourth pattern groove 82 provided in the outer rib area 8 can break the water film on the ground and assist in draining water, thereby improving the grip of the tire. In addition, the third sipe 81 and the fourth pattern groove 82 provided in an inclined manner can improve the tear resistance of the tire during use.

[0041] Optionally, the outer end of the first groove 51 is connected to the first longitudinal groove 1; the inner end of the second groove 91 is connected to the fourth longitudinal groove 4. The extension direction of the first groove 51 is inclined compared to the axis of the tire, and the outer end of the first groove 51 is connected to the first longitudinal groove 1. When the tire rolls, a closed tubular area is formed between the first longitudinal groove 1 that is grounded and the ground, and the airflow is compressed in the tubular area and not released, reducing the outflow of airflow, which can reduce the noise generated by the pumping effect when the tire rolls. The extension direction of the second groove 91 is inclined compared to the axis of the tire, and the outer end of the second groove 91 is connected to the fourth longitudinal groove 4. When the tire rolls, a closed tubular area is formed between the fourth longitudinal groove 4 that is grounded and the ground, and the airflow is compressed in the tubular area and not released, reducing the outflow of airflow, which can reduce the noise generated by the pumping effect when the tire rolls. Furthermore, the first grooves 51 can assist the first longitudinal grooves 1 in draining water, and the second grooves 91 can assist the fourth longitudinal grooves 4 in draining water, thereby improving the tire's grip and drainage capabilities and enhancing driving comfort.

[0042] The tire pattern provided by the present application is a left-right asymmetric pattern, and adopts a four-way main groove design of a first longitudinal groove 1, a second longitudinal groove 2, a third longitudinal groove 3, and a fourth longitudinal groove 4, which can provide good drainage performance, improve wetland braking and braking, and improve driving safety. The middle pattern area includes three rib patterns, namely, an inner rib area 6, a central rib area 7, and an outer rib area 8, which are arranged in sequence. The central wide rib pattern design can increase the wear mileage while reducing rolling resistance, thereby increasing the vehicle's cruising range; the inner rib area 6 has an inclined first sipe 61, the central rib area 7 has an inclined second sipe 71 and a third sipe 72, and the outer rib area 8 has an inclined third sipe 81 and a fourth sipe 82. When the tread is pressed on the ground, the water film on the road surface can be destroyed, thereby improving drainage performance and increasing wetland safety.

[0043] The two ends of the first sipe 61 of the inner rib area 6 are connected to the first longitudinal groove 1 and the second longitudinal groove 2 respectively; the two ends of the second sipe 71 of the central rib area 7 are connected to the second longitudinal groove 2 and the third longitudinal groove 3 respectively, the inner end of the third pattern groove 72 is connected to the second longitudinal groove 2, and the outer end is separated from the third longitudinal groove 3; the two ends of the third sipe 81 of the outer rib area 8 are connected to the third longitudinal groove 3 and the fourth longitudinal groove 4 respectively, the outer end of the fourth pattern groove 82 is connected to the fourth longitudinal groove 4, and the inner end is separated from the third longitudinal groove 3. Through such a setting, when the tire rolls, the ground-contacting main groove forms a closed tubular area with the ground, the airflow is compressed and blocked and not released, and the outflow of airflow is reduced. The narrower short groove can reduce the noise generated by the pumping effect during rolling, improve driving comfort and reduce noise, while improving drainage performance and wetland safety. The width of any one of the third groove 72 and the fourth groove 82 is smaller than the width of any one of the first longitudinal groove 1 , the second longitudinal groove 2 , the third longitudinal groove 3 and the fourth longitudinal groove 4 .

[0044] The inner shoulder area 5 is provided with a first groove 51, and the first groove 51 is connected to the first longitudinal groove 1. The width of the first groove 51 is narrower than that of the grooves in the same type of tire. With such a configuration, when the tire rolls, the ground-contacting main groove forms a closed tubular area with the ground, and the airflow is compressed and blocked from being released, reducing the outflow of the airflow, which can reduce the noise generated by the pumping effect during rolling, improve driving comfort, and at the same time improve the grip and accelerate drainage.

[0045] The outer shoulder area 9 is provided with a second groove 91, which is connected to the fourth longitudinal groove 4, and the width of the second groove is narrower than that of the grooves in the same type of tire. With such a configuration, when the tire rolls, the main groove that contacts the ground forms a closed tubular area with the ground, and the airflow is compressed and blocked from being released, which reduces the outflow of airflow, reduces the noise generated by the pumping effect during rolling, and improves driving comfort. At the same time, the grip is improved and the drainage is accelerated.

[0046] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0047] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0048] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

[0049] Although the embodiments of the present application have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A tire, characterized in that: include: The tire has a circumferential surface, and along the direction from the inside to the outside, the circumferential surface is provided with a first longitudinal groove, a second longitudinal groove, a third longitudinal groove and a fourth longitudinal groove spaced apart from each other, so as to divide the circumferential surface into: An inner shoulder region has a plurality of first grooves, wherein the plurality of first grooves are arranged at intervals along the circumference of the tire; An inner rib region has a plurality of first sipes, wherein the plurality of first sipes are arranged at intervals along the circumference of the tire; A central rib region has a plurality of first pattern portions, wherein the plurality of first pattern portions are arranged at intervals along the circumferential direction of the tire; An outer rib region has a plurality of second pattern portions, wherein the plurality of second pattern portions are arranged at intervals along the circumferential direction of the tire; An outer shoulder region has a plurality of second grooves, wherein the plurality of second grooves are arranged at intervals along the circumference of the tire; The first tread portion includes a second sipe and a third tread groove, the second tread portion includes a third sipe and a fourth tread groove, the width of any one of the first sipe, the second sipe and the third sipe is smaller than the width of the third tread groove, and the width of any one of the first sipe, the second sipe and the third sipe is smaller than the width of the fourth tread groove.

2. The tire according to claim 1, characterized in that An extending direction of the first sipe is inclined relative to an axis of the tire.

3. The tire according to claim 2, characterized in that The inner end of the first knife groove is communicated with the first longitudinal groove, and the outer end of the first knife groove is communicated with the second longitudinal groove.

4. The tire according to claim 1, characterized in that An extending direction of the second sipe is inclined compared to an axial direction of the tire, and an extending direction of the third groove is inclined compared to an axial direction of the tire.

5. The tire according to claim 4, characterized in that The inclination angle of the extending direction of the second sipe compared to the axial direction of the tire is the same as the inclination angle of the extending direction of the third groove compared to the axial direction of the tire.

6. The tire according to claim 1, characterized in that The inner end of the second knife groove is communicated with the second longitudinal groove, and the outer end of the second knife groove is communicated with the third longitudinal groove; The inner end of the third groove is communicated with the second longitudinal groove, and the outer end of the third groove is spaced apart from the third longitudinal groove.

7. The tire according to claim 1, characterized in that An extending direction of the third sipe is inclined relative to an axis of the tire, and an extending direction of the fourth groove is inclined relative to an axial direction of the tire.

8. The tire according to claim 7, characterized in that The inclination angle of the extending direction of the third sipe compared to the axial direction of the tire is the same as the inclination angle of the extending direction of the fourth groove compared to the axial direction of the tire.

9. The tire according to claim 7, characterized in that The inner end of the third knife groove is communicated with the third longitudinal groove, and the outer end of the third knife groove is communicated with the fourth longitudinal groove; The inner end of the fourth groove is spaced apart from the third longitudinal groove, and the outer end of the fourth groove is communicated with the fourth longitudinal groove.

10. The tire according to claim 1, characterized in that The outer end of the first groove is connected to the first longitudinal groove; the inner end of the second groove is connected to the fourth longitudinal groove.

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