Tire

Abstract

The utility model relates to a tire which comprises a tire body and a tire pattern part surrounding the tire body in the circumferential direction, and the tire pattern part comprises a central pattern block located in the middle, a first tire shoulder pattern block located on one side of the central pattern block and a second tire shoulder pattern block located on the other side of the central pattern block; first grooves are formed between the central pattern block and the first tire shoulder pattern block and between the central pattern block and the second tire shoulder pattern block in a surrounding manner in the circumferential direction of the tire main body; the tire pattern part further comprises a plurality of lateral grooves arranged in the circumferential direction of the tire body, the lateral grooves are arranged at unequal intervals, and the lateral grooves comprise the first lateral grooves and the second lateral grooves. And the first lateral grooves and the second lateral grooves are alternately arranged in the central pattern block in a through or disconnected manner. Therefore, the tire provided by the utility model has good control performance, abrasion performance, riding comfort, lubricating performance and ice and snow covered road gripping performance, and is excellent in comprehensive performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tires, in particular to a tire. BACKGROUND

[0002] With the continuous development of the automobile industry, higher and higher requirements are put forward for the load-carrying performance and driving performance of automobile tires. In addition, especially with the development of new energy vehicles, the noise performance, ride comfort and fuel economy performance of tires are also increasingly concerned.

[0003] In the prior art, the performance of automobile tires is influenced by the width of the tire pattern pitch, the difference in pattern type, and the number of small sipes on the tread. If the tread pattern block has small rigidity, it is beneficial to reduce the noise of the tire and improve the ride comfort and wet road drainage performance, but it will reduce the wear performance and driving performance of the tire. Conversely, if the tread pattern block has large rigidity, it is beneficial to improve the driving performance and wear performance of the tire, but it will increase the noise and reduce the ride comfort and wet road drainage performance. In addition, if a small number or no small sipe pattern is provided on the tread pattern block, it is beneficial to improve the handling performance and wear performance of the tire, but it will increase the noise of the tire and reduce the ice and snow road grip performance. If a large number of small sipe patterns are provided on the tread pattern block of the tire, it is beneficial to improve the comfort performance of the tire, reduce the noise of the tire, and improve the ice and snow road grip performance of the tire, but it is not conducive to the handling performance and wear performance of the tire.

[0004] Therefore, there is a need for a tire that can improve the ride comfort, wet performance and ice and snow road grip performance of the tire, and at the same time, can maximize the comprehensive performance of the tire, such as the handling performance and wear performance. CONTENT OF THE INVENTION

[0005] The present application aims to at least solve one of the above technical problems in the prior art. To this end, the purpose of the present application is to provide a tire with excellent comprehensive performance, which can ensure that the tire has good handling performance and wear performance, and at the same time, can ensure that the tire has good ride comfort, lubrication performance and ice and snow road grip performance.

[0006] Therefore, the first aspect of the present application provides a tire, comprising a tire body and a tire pattern portion surrounding the circumference of the tire body, characterized in that:

[0007] The tire pattern portion comprises a central pattern block located in the middle, a first shoulder pattern block located on one side of the central pattern block, and a second shoulder pattern block located on the other side of the central pattern block; wherein the central pattern block and the first shoulder pattern block and the second shoulder pattern block are each provided with a first groove surrounding the circumference of the tire body, and the included angle between the first groove and the circumference of the tire body is 5-10°.

[0008] The tire pattern part further comprises a plurality of lateral grooves arranged along the circumferential direction of the tire body, and the lateral grooves are arranged at unequal intervals, the lateral grooves comprising a first lateral groove and a second lateral groove; the first lateral groove is arranged on the first shoulder pattern block along the axial direction of the tire body and extends through the first groove into the central pattern block; the second lateral groove is arranged on the second shoulder pattern block along the axial direction of the tire body and extends through the second groove into the central pattern block.

[0009] Wherein, and the included angle between the first lateral groove and the second lateral groove and the circumferential direction of the tire body is 35-60°, and the first lateral groove and the second lateral groove are alternately arranged in the central pattern block.

[0010] The present application can effectively reduce the stiffness of the tire tread by arranging the first groove along the circumferential direction of the tire body and arranging a plurality of lateral grooves along the circumferential direction of the tire body, which is conducive to increasing the contact area between the tire and the ground and improving the ice and snow road grip performance of the tire. In addition, by setting the included angle between the first lateral groove and the second lateral groove and the circumferential direction of the tire body to 35-60°, and alternately arranging the first lateral groove and the second lateral groove in the central pattern block, the first lateral groove and the second lateral groove can be arranged in a discontinuous V shape. By this kind of pattern arrangement, the tire can quickly drain water when in use, and the front end of the V shape can conveniently break ice and snow, improving the drainage performance of the tire. In addition, by arranging a plurality of grooves on the tire tread, the tire can provide good traction and braking force in both longitudinal and lateral directions, preventing tire side slip and improving tire handling performance and wear performance. Furthermore, by setting the included angle between the first groove and the circumferential direction of the tire body to 5-10°, the traction and braking force of the tire on ice and snow can be greatly improved. Therefore, the tire of the present application has excellent comprehensive performance compared with the tire of the prior art.

[0011] According to some embodiments of the present application, a plurality of first sipes are arranged between the lateral grooves of the central pattern block, the first sipes being arranged in the same direction as the lateral grooves, one end of the first sipes being closed, and the other end of the first sipes being connected to the first groove.

[0012] By arranging the lateral grooves at unequal intervals and arranging a plurality of first sipes between the lateral grooves of the central pattern block, the present application can avoid the problem that equally spaced patterns easily cause loud resonance of the tire, thereby reducing noise and improving the ride comfort performance of the tire.

[0013] According to some embodiments of the present application, the first sipes are arranged as curved or straight sipes in different directions.

[0014] The present application can increase the flexibility of the tire, improve the mutual supporting force of the blocks of the tire tread when deformed, reduce the excessive deformation of the tire when in contact with the ground, effectively maintain the handling of the tire, and improve the quiet comfort of the tire.

[0015] According to some embodiments of the present application, a plurality of second sipes are arranged between the lateral grooves of the first shoulder block and the second shoulder block, the second sipes are arranged in the same direction as the lateral grooves, one end of the second sipes is connected to the outside, and the other end of the second sipes is connected to the first groove.

[0016] According to some embodiments of the present application, the top of the second sipe is provided with a decorative part.

[0017] According to some embodiments of the present application, the depths of the first sipes and the second sipes are not completely the same, and the depths of the first sipes and the second sipes are 1mm-8mm.

[0018] According to some embodiments of the present application, the width of the lateral groove is 4-10mm, and the groove wall angle of the lateral groove is 6-12°.

[0019] According to some embodiments of the present application, the distance between the lateral grooves is 50mm-100mm, and 24-40 lateral grooves are arranged.

[0020] According to some embodiments of the present application, the ratio of the sum of the width of the first groove and the width of the central block to the width of the tire tread is 0.45-0.7, and the ratio of the width of the first shoulder block and the second shoulder block to the width of the tire tread is 0.15-0.30.

[0021] According to some embodiments of the present application, the width of the first groove is 1.5-6mm, and the width of the first sipe and the second sipe is <2mm. BRIEF DESCRIPTION OF DRAWINGS

[0022] The present application will be further described and explained in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments embodied in the following drawings are exemplary and are only used to explain the present application, and should not be understood as limiting the present application.

[0023] Figure 1A structure diagram of a tire provided by an embodiment of the present application;

[0024] Figure 2 An enlarged view of a decorative part of a top of the second sipe in the embodiment of the present application.

[0025] Legend of reference signs:

[0026] 1, center block; 2, shoulder block; 3, lateral groove; 4, first groove; 5, first sipe; 6, second sipe; 7, decorative part of a top of the second sipe. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0028] In the description of the embodiments of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated thereby must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the embodiments of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixedly connected, or replaceably connected, or integrally connected, can be mechanically connected, or electrically connected, can be directly connected, or indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0030] The present application provides a tire with excellent comprehensive performance, which can effectively solve the technical problem that the comfort, ice and snow road grip performance, handling performance, wear performance and other performances are difficult to balance in the prior art, and can ensure that the tire has good handling performance, wear performance, and also has good low-noise comfort and ice and snow road grip performance.

[0031] It should be noted that the "axial direction" of the tire of the present application refers to the direction parallel to the rotation axis of the tire.

[0032] The "circumferential direction" of the tire of the present application refers to the direction tangent to any circle centered on the rotation axis, which is perpendicular to the axial direction and the radial direction.

[0033] The "radial direction" of the tire of the present application refers to the direction perpendicular to the rotation axis of the tire (which corresponds to the direction of the thickness of the tire tread at the center of the tire tread of the tire).

[0034] As shown in the drawings, Figure 1 The tire of the present application comprises a tire body and a tire pattern portion circumferentially surrounding the tire body, wherein the tire pattern portion comprises a central block 1 and a shoulder block 2, the central block 1 is located in the middle of the tire pattern portion, a first shoulder block and a second shoulder block are respectively arranged on both sides of the central block, and a first groove 4 circumferentially surrounding the tire body is arranged between the central block and the first shoulder block and the second shoulder block. The circumferential angle between the first groove 4 and the tire body is 5-10°, and the width of the first groove is 1.5-6mm. By forming a certain angle between the first groove and the circumferential direction of the tire body, the traction and braking force of the tire on the ice and snow road can be improved.

[0035] Exemplarily, the width of the first shoulder block and the second shoulder block can be the same or different, which is not specifically limited here.

[0036] The tire pattern portion of the present application further comprises a plurality of lateral grooves 3 arranged circumferentially along the tire body, i.e. the tire pattern portion is spaced apart by the lateral grooves. Exemplarily, the lateral grooves 3 are in the shape of a convex upward circular arc, the lateral grooves 3 can also be provided with inclined side walls to prevent stone trapping, and the lateral grooves 3 can also have other shapes, which are not specifically limited here.

[0037] The plurality of lateral grooves 3 are arranged in the same way on the tire pattern portion, i.e. the plurality of lateral grooves 3 are arranged at intervals and have the same direction.

[0038] Exemplarily, the lateral grooves 3 comprise a first lateral groove and a second lateral groove, the first lateral groove is arranged on the first shoulder block along the axial direction of the tire body and extends through the first groove into the central block 1; the second lateral groove is arranged on the second shoulder block along the axial direction of the tire body and extends through the second groove into the central block 1.

[0039] The application can effectively reduce the rigidity of the tire tread, is conducive to increasing the contact area of the tire with the ground, and improves the ice and snow road surface grip performance of the tire; in addition, by arranging various grooves on the tire tread, the tire can provide good traction and braking force in the longitudinal and lateral directions, prevent tire side slip, and improve the handling performance and wear performance of the tire.

[0040] In another embodiment, the tire pattern part adopts an axisymmetric manner, i.e., the lateral grooves 3 and the first grooves 4 are symmetrically distributed with the central pattern block 1 as the center, so as to improve the aesthetics of the tire under the premise of ensuring the performance of the tire. Therefore, compared with the prior art, the tire of the application not only has excellent use performance, but also has good aesthetics.

[0041] In the embodiment of the application, the first lateral groove and the second lateral groove are arranged at an angle of 35-60° with the circumferential direction of the tire body, and the first lateral groove and the second lateral groove are alternately arranged in the central pattern block 1 in a through or disconnected manner, forming an intermittent V-shaped arrangement. Since the tire grip force deteriorates easily during the driving of the automobile on the ice and snow road surface, such an intermittent V-shaped arrangement can improve the traction and braking force of the tire on the ice and snow road surface. In addition, since the central pattern block 1 of the tire is not entirely a V-shaped lateral groove 3 in the ground contact part, i.e., a part of the central pattern block 1 is a V-shaped lateral groove in the ground contact part, and the other part of the central pattern block 1 is a pattern block in the contact part, this can also ensure the support strength of the tire and the stability of the tire.

[0042] In another embodiment, a plurality of first sipes 5 are arranged between the lateral grooves 3 of the central pattern block 1, the first sipes 5 are arranged in the same direction as the lateral grooves 3, one end of the first sipes 5 is closed, and the other end of the first sipes 5 is connected to the first grooves 4. By arranging a plurality of first sipes 5 on the central pattern block of the tire, the softness of the central region can be effectively improved, and the grip performance of the tire is further improved.

[0043] In another embodiment, the first sipes 5 are arranged as a plurality of sipes of different directions and curved or straight shapes. By arranging a plurality of sipes of different directions on the tread, the tire can have good traction and braking force in the longitudinal and lateral directions, and prevent tire side slip.

[0044] In another embodiment, a plurality of second sipes 6 are arranged between the lateral grooves 3 of the first shoulder block and the second shoulder block, the second sipes 6 are arranged in the same direction as the lateral grooves 3, one end of the second sipes 6 is connected to the outside, and the other end of the second sipes 6 is connected to the first groove 4. By arranging a plurality of second sipes 6 on the first shoulder block and the second shoulder block, the rigidity of the shoulder can be reduced to a certain extent, the riding comfort of the tire can be improved, and the noise of the tire can be reduced and the ice and snow road grip performance of the tire can be enhanced.

[0045] In another embodiment, as shown in the drawings, a decorative part 7 is arranged on the top of the second sipe 6, and the decorative part 7 is designed as a wedge-shaped decorative edge. By arranging the decorative part, the contact area between the tire and the ground can be further increased, and the grip performance of the tire can be improved. Figure 2

[0046] In another embodiment, the width of the first sipe and the second sipe is <2mm. By selecting the appropriate width of the sipe, the softness of the tread pattern rib can be increased, and the mutual supporting force of the tread rubber blocks when deformed can be increased to enhance the rigidity of the pattern rib, reduce the excessive deformation of the tire when in contact with the ground, improve the quiet comfort of the tire, and effectively maintain the handling of the tire.

[0047] In another embodiment, the depth of the first sipe 5 is not completely the same, and the depth of the second sipe 6 is not completely the same. Preferably, the depth of the first sipe 5 and the second sipe 6 ranges from 1mm to 8mm. By arranging small first sipes and second sipes, the rigidity of the tire crown position can be effectively reduced, and the comfort of the tire can be improved. The depth of the first sipe and the second sipe can be selected according to actual needs, and this application will not be described in detail.

[0048] In another embodiment, the width of the lateral groove 3 is 4-10mm, and the groove wall angle of the lateral groove 3 is 6-12°. By arranging appropriate lateral grooves 3, the tire can have the best drainage performance, ice and snow grip performance, and stone prevention performance.

[0049] ​In another embodiment, the distance between the adjacent lateral grooves 3 of the same central block 1 is 50mm-100mm, and the lateral grooves are arranged in 24-40. Preferably, at least three different distances of lateral grooves are arranged on the central block of the tire, and by using multiple quantities, three or more different distances, the noise of the tire can be further reduced, and the comfort performance of the tire can be improved. Among them, the distance between the adjacent lateral grooves 3 of the same central block 1 and the number of lateral grooves arranged can be selected according to actual needs, and the present application will not be described in detail.

[0050] In another embodiment, as shown in Figure 1 The ratio of the sum of the width of the first groove 4 and the width of the central block 1 to the width of the tire tread is 0.45-0.7, and the ratio of the width of the first shoulder block and the second shoulder block to the width of the tire tread is 0.15-0.30. Such arrangement is to balance the proportion between the area of the middle part of the tread and the area of the tire shoulder, which can ensure that the middle part of the tread and the shoulder of the tire have sufficient area to support the entire tire, and thus can ensure the support strength of the entire tread. Among them, the specific proportion is designed according to actual needs, and the present application will not be described in detail.

[0051] Therefore, compared with the prior art, the tire of the present application has good handling performance, wear performance, ride comfort, lubrication performance and ice and snow road grip performance, and excellent comprehensive performance.

[0052] The above embodiments are the preferred embodiments of the present application, but the embodiments of the present application are not limited by the above embodiments, and any changes, modifications, substitutions, combinations and simplifications made without departing from the spirit and principles of the present application should be equivalent replacement methods, and all are included in the protection scope of the present application.

Claims

1.A tire comprising a tire body and a tire pattern portion surrounding the tire body in a circumferential direction, characterized in that: the tire pattern portion comprises a central block located in a middle portion, a first shoulder block located on one side of the central block, and a second shoulder block located on the other side of the central block; wherein the central block and the first shoulder block and the second shoulder block are each provided with a first groove surrounding the tire body in the circumferential direction, and an included angle between the first groove and the circumferential direction of the tire body is 5-10°; the tire pattern portion further comprises a plurality of lateral grooves arranged in the circumferential direction of the tire body, and the lateral grooves are arranged at unequal distances from each other, the lateral grooves comprising a first lateral groove and a second lateral groove; the first lateral groove is arranged on the first shoulder block in an axial direction of the tire body and extends through the first groove into the central block; the second lateral groove is arranged on the second shoulder block in the axial direction of the tire body and extends through the second groove into the central block; wherein the first lateral groove and the second lateral groove have an included angle of 35-60° with the circumferential direction of the tire body, and the first lateral groove and the second lateral groove are alternately arranged in the central block in a through or disconnected manner; a plurality of first sipes are arranged between the lateral grooves of the central block, the first sipes are arranged in the same direction as the lateral grooves, one end of the first sipes is closed, and the other end of the first sipes is connected to the first groove; the first sipes are arranged as a plurality of curved or straight sipes in different directions; a plurality of second sipes are arranged between the lateral grooves of the first shoulder block and the second shoulder block, the second sipes are arranged in the same direction as the lateral grooves, one end of the second sipes is connected to the outside, and the other end of the second sipes is connected to the first groove; a decorative part is arranged on the top of the second sipes; the depths of the first sipes are not completely the same, the depths of the second sipes are not completely the same, and the depths of the first sipes and the second sipes are 1-8 mm; the width of the lateral grooves is 4-10 mm, and the groove wall angle of the lateral grooves is 6-12°; the distance between the lateral grooves is 50-100 mm, and 24-40 lateral grooves are arranged; the ratio of the sum of the width of the first groove and the width of the central block to the width of the tire tread is 0.45-0.7, and the ratio of the width of the first shoulder block and the second shoulder block to the width of the tire tread is 0.15-0.30; the width of the first groove is 1.5-6 mm, and the width of the first sipes and the second sipes is less than 2 mm. ​ ​ ​ 2. Tyre according to Claim 1, characterized in that, ​ 3. Tyre according to Claim 2, characterized in that, ​ 4. The tire of claim 2, wherein, ​ 5. Tyre according to Claim 4, characterized in that, ​ 6. The tire according to claim 4, wherein, ​ 7. A tyre according to either of Claims 1 or 2, characterized in that, ​ 8. Tyre according to Claim 7, characterized in that, ​ 9. A tyre according to either of Claims 1 or 2, characterized in that, ​ 10. The tire of claim 6, wherein, ​

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