Noise reduction tire

Abstract

The utility model discloses a noise-reducing tire, which comprises a tire crown, a tire tread, a tire tread, a tire tread, a tire tread, a tire tread, a tire tread, a tire tread, a tire tread and a tire tread, and is characterized in that the tire tread comprises a central area; the tire side bodies are arranged on the two sides, away from the central area, of the tire crown at intervals in the axial direction, and each tire side body comprises a tire shoulder; the first tire patterns are symmetrically arranged on the two sides of the central area in the axial direction, each first tire pattern comprises a first groove body and a second groove body, the first groove bodies and the second groove bodies are arranged on the two sides of the central area at intervals in the axial direction, a plurality of first reinforcing parts are arranged in the first groove bodies at intervals in the circumferential direction, and a plurality of second reinforcing parts are arranged in the second groove bodies at intervals in the circumferential direction; the strength of the first tread is increased; the multiple second tire patterns are symmetrically arranged between the first tire patterns and the tire side body in the axial direction; and the multiple third tire patterns are symmetrically arranged on the tire shoulder in the circumferential direction. According to the utility model, the noise generated in the running process of the tire can be effectively reduced, and the comfort of a driver and passengers is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of tire design and manufacture, particularly relates to a noise reduction tire. BACKGROUND

[0002] The design of the tire has an extremely important role for the driving performance in the vehicle driving process and the comfort of the driver and the passenger. In the prior art, the high flat tire, that is, the tire with a high height-width ratio, usually has higher performance and higher stability, but at the same time, the weight of the high flat tire is also larger, and the contact area of the high flat tire with air and ground also increases, thereby causing the air sound explosion and the resonance noise of the tire and the hub to increase when the high flat tire rotates at high speed, and these noises directly affect the comfort of the driver and the passenger. SUMMARY

[0003] The utility model discloses a tire, which can effectively reduce the noise generated in the driving process of the tire.

[0004] To solve the above technical problems, the embodiment of the utility model discloses a noise reduction tire, which comprises:

[0005] The crown comprises a tread, and the tread comprises a central region, which is arranged in a circumferential direction;

[0006] The sidewall body is arranged on both sides of the crown away from the central region in an axial direction, and the sidewall body comprises a shoulder;

[0007] At least one first sipe is arranged on both sides of the central region in the axial direction, the first sipe comprises a first groove body and a second groove body, the first groove body and the second groove body are arranged on both sides of the central region in the axial direction, a plurality of first reinforcing portions are arranged in the first groove body in the circumferential direction, and a plurality of second reinforcing portions are arranged in the second groove body in the circumferential direction, so as to increase the strength of the first sipe;

[0008] A plurality of second sipes are arranged between the first sipe and the sidewall body in the axial direction;

[0009] A plurality of third sipes are arranged on the shoulder in the circumferential direction.

[0010] The first groove body and the second groove body are arranged on both sides of the center region along the axial direction, and the first groove body and the second groove body can guide air to enter and exit in the process of vehicle driving, so that air impact on the tread to produce a sound blast is avoided, in addition, the first reinforcing part and the second reinforcing part can respectively strengthen the strength of the first groove body and the second groove body, so that the first groove body and the second groove body are prevented from being deformed under pressure in the process of tire driving to produce a sound blast with air flow, so as to further reduce the noise in the process of tire operation.

[0011] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a noise reduction tire,

[0012] Comprise:

[0013] Sound insulation layer, along the radial direction, the sound insulation layer is arranged on the side of the crown away from the tread;

[0014] Buffer layer, along the radial direction, the buffer layer is arranged on the side of the sound insulation layer away from the tread, along the circumferential direction, the first groove is arranged around the tread, and the plurality of second grooves are arranged on the tread.

[0015] According to the above technical scheme, the side of the crown away from the tread is provided with a sound insulation layer, so that resonance of the hub and the tire can be avoided, and thus resonance noise generated by the hub and the tire can be eliminated, in addition, the buffer layer arranged on the side of the sound insulation layer away from the tread can play a buffering role, further destroy the propagation of noise, and improve the noise reduction effect.

[0016] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a noise reduction tire, the first reinforcing part comprises a first reinforcing block, along the axial direction, the two sides of the first reinforcing block are connected with the groove wall of the first groove body, the first reinforcing block comprises an inclined first flow guide surface, and the projection of the first flow guide surface on the axial direction forms a first included angle with the bottom wall of the first groove body;

[0017] The second reinforcing part comprises a second reinforcing block, along the axial direction, the two sides of the second reinforcing block are connected with the groove wall of the second groove body, the second reinforcing block comprises an inclined second flow guide surface, the projection of the second flow guide surface on the axial direction forms a second included angle with the bottom wall of the second groove body, and the first included angle and the second included angle are acute angles.

[0018] The first flow guide surface can guide the air flowing into the first groove body outward, so that the air does not impact the groove wall and other components to generate a sound blast.

[0019] According to another specific embodiment of the present application, the embodiment of the present application discloses a noise reduction tire, the first reinforcing block and the second reinforcing block are both in the shape of a quadrangular pyramid, the first flow guide surface is a side surface of the first reinforcing block in the shape of a quadrangular pyramid, and the second flow guide surface is a side surface of the second reinforcing block in the shape of a quadrangular pyramid.

[0020] According to another specific embodiment of the present application, the embodiment of the present application discloses a noise reduction tire, the first reinforcing part comprises a third reinforcing block, the third reinforcing block is arranged on a side of the first reinforcing block away from the first flow guide surface along the circumferential direction, and the third reinforcing block is connected with a side wall of the first groove body along the axial direction.

[0021] The second reinforcing part comprises a fourth reinforcing block, the fourth reinforcing block is arranged on a side of the second reinforcing block away from the second flow guide surface along the circumferential direction, and the fourth reinforcing block is connected with a side wall of the second groove body along the axial direction.

[0022] According to the above technical scheme, the third reinforcing block and the fourth reinforcing block are arranged in the first groove body, the third reinforcing block is connected with the side wall of the first groove body along the axial direction, and the fourth reinforcing block is connected with the side wall of the second groove body along the axial direction, so that the strength of the central region between the first groove body and the second groove body can be increased, the deformation of the central region due to extrusion during the running of the tire is avoided, and the sound blast caused by the impact of the air flow is avoided, so that the noise during the running of the tire is reduced.

[0023] According to another specific embodiment of the present application, the embodiment of the present application discloses a noise reduction tire, the height of the third reinforcing block is not higher than the height of the first reinforcing block along the radial direction, and the height of the fourth reinforcing block is not higher than the height of the second reinforcing block along the radial direction.

[0024] According to the above technical scheme, the first reinforcing block can block the third reinforcing block, the air flow is guided out of the inside of the first groove body through the first flow guide surface, the second reinforcing block can block the fourth reinforcing block, and the air flow is guided out of the inside of the second groove body through the second flow guide surface, so that the sound blast caused by the impact of the air flow on the third reinforcing block and the fourth reinforcing block is avoided.

[0025] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a noise reduction tire, the third reinforcing block includes first slope and second slope, the projection of first slope and second slope on the radial direction meets and forms second included angle;

[0026] The fourth reinforcing block includes third slope and fourth slope, the projection of third slope and fourth slope on the radial direction meets and forms third included angle.

[0027] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a tire, the second sipe is inclinedly arranged in the shape of triangle, along the axial direction, one end of the second sipe is arranged close to the shoulder, and the other end extends towards the central region.

[0028] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a noise reduction tire, the plurality of second sipes includes second sipe arranged symmetrically in pairs along the axial direction, each second sipe includes third groove body and buffer pad, and the buffer pad can be slidably arranged in the third groove body along the first direction.

[0029] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a noise reduction tire, along the first direction, the groove wall of the third groove body is provided with a connecting portion, one end of the connecting portion away from the groove wall is connected with the buffer pad, one end of the connecting portion connected with the buffer pad can reciprocate along the first direction, the connecting portion is provided with an elastic member, along the first direction, one end of the elastic member is arranged on the groove wall of the third groove body, and the other end is connected with the buffer pad.

[0030] By the cooperation of the buffer pad, the connecting portion and the elastic member, the impact strength of airflow can be reduced, the sound blast can be reduced, the generation of noise can be effectively reduced, and the comfort of the driver can be improved.

[0031] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a tire, the plurality of third sipes includes fourth groove body arranged symmetrically in pairs along the axial direction, and the fourth groove body is in the shape of triangle. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 A three-dimensional schematic view of the noise reduction tire provided by the embodiment of the application is shown.

[0033] Figure 2A top view of the noise reduction tire provided by the embodiment of the application is shown.

[0034] Figure 3 A sectional view of the noise reduction tire provided by the embodiment of the application is shown.

[0035] Figure 4 A schematic view of the first reinforcing block and the second reinforcing block of the noise reduction tire provided by the embodiment of the application is shown.

[0036] Figure 5 A schematic view of the cushion pad, the connecting part and the elastic member of the noise reduction tire provided by the embodiment of the application is shown. DETAILED DESCRIPTION

[0037] The embodiments of the present application will be described in detail by specific embodiments, and other advantages and effects of the present application can be easily understood by those skilled in the art from the content disclosed in the specification. Although the description of the present application will be introduced in combination with the preferred embodiments, this does not mean that the features of the present application are limited to the embodiments. On the contrary, the purpose of introducing the present application in combination with the embodiments is to cover other options or modifications that can be extended based on the claims of the present application. In order to provide a deep understanding of the present application, many specific details will be included in the following description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or obscure the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0038] It should be noted that in the specification, similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0039] In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0040] The terms "first", "second" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0041] In the description of the embodiments, it should also be noted that unless specifically defined and limited, the terms "set", "connected", "connected", should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments can be understood according to the specific circumstances.

[0042] In order to make the purpose, technical scheme and advantages of the utility model more clear, the embodiments of the utility model will be described in further detail below with reference to the drawings.

[0043] In some embodiments, referring to Figure 1 , Figure 2 , Figure 3 , the application provides a noise reduction tire, which comprises a crown 10 and a sidewall body 20, the sidewall body 20 comprises a shoulder 201 and a sidewall 202, the crown 10 refers to the part of the tire in contact with the ground, the surface of the crown 10 in contact with the ground is a tread 11, the tread 11 comprises a central area 111, the central area 111 is arranged in a circumferential direction R, and the sidewall body 20 is arranged on both sides of the central area 111 away from the crown 10 in an axial direction X.

[0044] Exemplarily, the noise reduction tire further comprises a first tread 30, a second tread 40 and a third tread 50, a plurality of first treads 30 are arranged on both sides of the central area 111 in the axial direction X, a plurality of second treads 40 are arranged between the first treads 30 and the sidewall body 20, and a plurality of third treads 50 are arranged on the shoulder 201 in the circumferential direction R. Understandably, the first tread 30, the second tread 40 and the third tread 50 not only have an aesthetic effect, but also belong to the noise reduction structure of the noise reduction tire provided by the embodiments of the application.

[0045] Exemplarily, referring to Figure 3 , the noise reduction tire further comprises a sound insulation layer 60 and a buffer layer 70, the sound insulation layer 60 is arranged on the side of the crown 10 away from the tread 11 in a radial direction Y, the buffer layer 70 is arranged on the side of the sound insulation layer 60 away from the tread 11 in the radial direction Y, the first tread 30 is arranged on the tread 11 in the circumferential direction R, and a plurality of second treads 40 are arranged on the tread 11 in the circumferential direction R.

[0046] Adopting the technical scheme, the first sipe 30 and the second sipe 40 are arranged on the whole tread 11, and the third sipe 50 is arranged on the shoulder 201, so that noise generated when the tire contacts the ground can be inhibited, and a good mute effect is achieved. Meanwhile, the sound insulation layer 60 is arranged on the side of the crown 10 away from the tread 11, so that resonance of the hub and the tire can be avoided, and resonance noise generated by the hub and the tire can be eliminated. In addition, the buffer layer 70 arranged on the side of the sound insulation layer 60 away from the tread 11 can play a buffering role, further destroy the propagation of noise, and improve the noise reduction effect.

[0047] In some embodiments, the noise reduction tire further comprises a belt protection layer 80 arranged on the side of the sound insulation layer 60 away from the buffer layer 70 along the radial direction Y. The material of the sound insulation layer 60 can be selected from polyethylene, sponge and other materials that can play a sound insulation role. The material of the buffer layer 70 can be selected from rubber and other materials with good elasticity. The material of the belt protection layer 80 can be selected from nylon and steel wire. The material of the sound insulation layer 60, the buffer layer 70 and the belt protection layer 80 is not limited in the application. The belt protection layer 80 is also called a support layer, a hard buffer layer and a stabilizing layer. It can play a role of moderating impact and tightening the tire body. In addition, only the structure of the improved part is shown in the drawings, and the structure of each layer of the tire in the prior art is not specifically described.

[0048] In some embodiments, referring to Figure 1 、 Figure 2 、 Figure 3 , the first sipe 30 comprises a first groove body 301 and a second groove body 302. The first groove body 301 and the second groove body 302 are arranged on the two sides of the central area 111 along the axial direction X. A plurality of first reinforcing portions 303 are arranged in the first groove body 301 along the circumferential direction R. A plurality of second reinforcing portions 304 are arranged in the second groove body 302 along the circumferential direction R, for increasing the strength of the first sipe 30. Exemplarily, the first groove body 301 comprises a first side wall 3011 and a second side wall 3012. The second groove body 302 comprises a third side wall 3021 and a fourth side wall 3022. The number of the first sipe 30 is not limited in the embodiments of the application. For example, the number can be 2, 3, 4, 5 or the like. At this time, the number of the first groove body 301 and the second groove body 302 also corresponds to 2, 3, 4, 5 or the like.

[0049] In some embodiments, referring to Figure 2 、 Figure 3 、 Figure 4 and combining Figure 1The first reinforcing part 303 includes a first reinforcing block 3031 and a third reinforcing block 3032. In the axial direction X, two sides of the first reinforcing block 3031 are connected to the first sidewall 3011 and the second sidewall 3012 of the first groove body 301. The first reinforcing block 3031 includes a first flow guide surface 30311 that is arranged obliquely relative to the bottom wall 3014 of the first groove body 301. The first flow guide surface 30311 is used to guide air flowing into the interior of the first groove body 301 outward. The first flow guide surface 30311 intersects the bottom wall 3014 of the first groove body 301 and forms a first included angle a, which is an acute angle.

[0050] The second reinforcing part 304 includes a second reinforcing block 3041 and a fourth reinforcing block 3042. In the axial direction X, two sides of the second reinforcing block 3041 are connected to the third sidewall 3021 and the fourth sidewall 3022 of the second groove body 302. The second reinforcing block 3041 includes a second flow guide surface 30411 that is arranged obliquely relative to the bottom wall 3024 of the second groove body 302. The second flow guide surface 30411 is used to guide air flowing into the interior of the second groove body 302 outward. The second flow guide surface 30411 intersects the bottom wall 3024 of the second groove body 302 and forms a second included angle b.

[0051] Exemplarily, the first included angle a and the second included angle b can be 10°, 20°, 30°, 45°, 60°, 75°, etc. The present application does not limit the degrees of the first included angle a and the second included angle b. When the tire is running, the first flow guide surface 30311 can guide air flowing into the interior of the first groove body 301 outward, avoiding air impacting the groove wall and generating a sound burst in the interior of the first groove body 301. The second flow guide surface 30411 can guide air flowing into the interior of the second groove body 302 outward, avoiding air impacting the groove wall and generating a sound burst in the interior of the second groove body 302.

[0052] In some embodiments, referring to Figure 3 , Figure 4 and combining Figure 1 , the first reinforcing block 3031 and the second reinforcing block 3041 are both in the shape of a quadrangular pyramid. The first reinforcing block 3031 includes the first flow guide surface 30311, a first side surface 30312, a second side surface (not shown in the figure), a third side surface (not shown in the figure), and a first bottom surface 30313. The second side surface is arranged in abutment with the bottom wall 3014 of the first groove body 301. The first flow guide surface 30311 and the second side surface are arranged opposite to each other in the radial direction Y. The first side surface 30312 and the third side surface are arranged opposite to each other in the axial direction X.

[0053] The second reinforcing block 3041 comprises a second flow guide surface 30411, a fourth side surface 30412, a fifth side surface (not shown in the figure), a sixth side surface (not shown in the figure), and a second bottom surface 30413, wherein the fifth side surface is arranged in abutment with the bottom wall 3024 of the second groove body 302, the second flow guide surface 30411 and the fifth side surface are arranged in opposition along the radial direction Y, and the fourth side surface 30412 and the sixth side surface are arranged in opposition along the axial direction X.

[0054] In some embodiments, referring to Figure 3 , Figure 4 and in combination with Figure 1 , the third reinforcing block 3032 is arranged on the first bottom surface 30313 of the first reinforcing block 3031 and is connected to the first side wall 3011 and the second side wall 3012 of the first groove body 301 along the axial direction X; and the fourth reinforcing block 3042 is arranged on the second bottom surface 30413 of the second reinforcing block 3041 and is connected to the third side wall 3021 and the fourth side wall 3022 of the second groove body 401 along the axial direction X.

[0055] By arranging the third reinforcing block 3032 and the fourth reinforcing block 3042 in the first groove body 301, and connecting the third reinforcing block 3032 to the first side wall 3011 and the second side wall 3012 of the first groove body 301 along the axial direction X and connecting the fourth reinforcing block 3042 to the third side wall 3021 and the fourth side wall 3022 of the second groove body 401 along the axial direction X, the strength of the central region 111 between the first groove body 301 and the second groove body 302 can be increased, and deformation of the central region 111 due to extrusion during tire running can be avoided, so that the impact sound with air flow is avoided, and the noise during tire running is further reduced.

[0056] Exemplarily, referring to Figure 3 , Figure 4 , the third reinforcing block 3032 comprises a first portion 30321 and a second portion 30322, and the fourth reinforcing block 3042 comprises a third portion 30421 and a fourth portion 30422, the first portion 30321 is arranged on the first side wall 3011, and the second portion 30322 is arranged on the second side wall 3012; the third portion 30421 is arranged on the third side wall 3021, and the fourth portion 30422 is arranged on the fourth side wall 3022. The first portion 30321, the second portion 30322, the third portion 30421, and the fourth portion 30422 are all arranged in a triangular prism shape. Understandably, the first portion 30321, the second portion 30322, the third portion 30421, and the fourth portion 30422 can also be in other shapes such as quadrangular prism, pentagonal prism, etc., which are not limited in the present application.

[0057] In some embodiments, referring to Figure 4 and in combination with Figure 2, the height of the third reinforcing block 3032 is not higher than the height of the first reinforcing block 3031, and the height of the fourth reinforcing block 3042 is not higher than the height of the second reinforcing block 3041. In this way, the first reinforcing block 3031 can block the third reinforcing block 3032, and the airflow is guided out of the interior of the first groove body 301 by the first flow guide surface 30311, and the second reinforcing block 3041 can block the fourth reinforcing block 3042, and the airflow is guided out of the interior of the second groove body 302 by the second flow guide surface 30411, so as to avoid the sound explosion caused by the airflow impacting the third reinforcing block 3032 and the fourth reinforcing block 3042.

[0058] In some embodiments, referring to Figure 4 , the third reinforcing block 3032 comprises a first inclined surface 30323 and a second inclined surface 30324, the first inclined surface 30323 and the second inclined surface 30324 intersect and form a third included angle c; the fourth reinforcing block 3042 comprises a third inclined surface 30423 and a fourth inclined surface 30424, the third inclined surface 30423 and the fourth inclined surface 30424 intersect and form a fourth included angle d. Exemplarily, the first inclined surface 30323 is arranged on the first portion 30321, the second inclined surface 30324 is arranged on the second portion 30322, the third inclined surface 30423 is arranged on the third portion, and the fourth inclined surface 30424 is arranged on the fourth portion. The third included angle c and the fourth included angle d can be 30°, 60°, 90°, 120°, etc. The present application does not limit this.

[0059] In some embodiments, referring to Figure 1 、 Figure 2 、 Figure 5 , the second sipe 40 is in the shape of an inclined triangle, and along the axial direction X, one end of the second sipe 40 is arranged close to the sidewall body 20, and the other end extends and is arranged towards the central region 111. In some embodiments, the plurality of second sipes 40 comprises second sipes 40 arranged symmetrically two by two along the axial direction X, each second sipe 40 comprises a third groove body 401 and a buffer pad 402, the buffer pad 402 is slidably arranged in the third groove body 401 along a first direction w, and the first direction w is the extension direction of the third groove body 401. Exemplarily, the noise reduction tire comprises two rows of second sipes 40 arranged symmetrically along the axial direction X, and each row of second sipes 40 comprises a plurality of second sipes 40. The number of second sipes 40 is not limited in the embodiments of the present application, for example, it can also be 4 rows, 6 rows, 8 rows, etc.

[0060] Exemplarily, referring to Figure 1 、 Figure 2The third groove body 401 comprises a fifth side wall 4011, a sixth side wall 4012 and a seventh side wall 4013. The fifth side wall 4011 and the sixth side wall 4012 are respectively arranged at two ends of the seventh side wall 4013. Along the first direction w, the fifth side wall 4011 and the sixth side wall 4012 intersect at an end away from the seventh side wall 4013. The first direction w intersects the circumferential direction R and forms a fifth included angle d. The fifth included angle d can be 30°, 60°, 90°, 120° or the like, which is not limited in the present application.

[0061] In some embodiments, referring to Figure 1 、 Figure 2 、 Figure 5 Along the first direction w, the seventh side wall 4013 of the third groove body 401 is provided with a connecting portion 403. An end of the connecting portion 403 away from the seventh side wall 4013 is connected with the buffer pad 402. The end of the connecting portion 403 connected with the buffer pad 402 can reciprocate along the first direction w. The elastic member 404 is arranged on the connecting portion 403. Along the first direction w, one end of the elastic member 404 is arranged on the seventh side wall 4013 of the third groove body 401, and the other end is connected with the buffer pad 402.

[0062] Exemplarily, the connecting portion 403 comprises a fixed column 4031 and an extension column 4032. Along the first direction w, one end of the fixed column 4031 is arranged on the seventh side wall 4013, and the other end is provided with the extension column 4032. An end of the extension column 4032 away from the fixed column 4031 is connected with the buffer pad 402. During the driving of the tire, when the airflow entering the third groove body 401 hits the buffer pad 402, the buffer pad 402 slides along the first direction w towards the seventh side wall 4013, and the extension column 4032 moves along the first direction w towards the fixed column 4031. The spring is compressed under the force. Through the cooperation of the buffer pad 402, the connecting portion 403 and the elastic member 404, the effect of buffering and shock absorption can be effectively achieved. The impact strength of the airflow is reduced, and the effect of reducing the sound blast is achieved. The generation of noise is effectively reduced, and the comfort of the driver is improved. When there is no airflow flowing into the third groove body 401, under the action of the restoring force of the elastic member 404, the buffer pad 402 and the extension column 4032 can slide along the first direction w away from the seventh side wall 4013.

[0063] Exemplarily, the extension column 4032 can be supported by an elastic material, or a containing groove (not shown in the figure) is arranged in the fixed column 4031, and the extension column 4032 can reciprocate in the containing groove along the first direction w. Exemplarily, the elastic member 404 comprises a spring. Understandably, the elastic member 404 can also be in the form of a spring sheet or the like, which is not limited in the present application.

[0064] In some embodiments, referring to Figure 1 、 Figure 2The plurality of third sipes 50 include fourth groove bodies 501 arranged symmetrically in pairs along the axial direction X, and the fourth groove bodies 501 are in a triangular shape. It can be understood that the fourth groove bodies 501 can also be in a quadrilateral shape, a pentagonal shape, or other shapes, which are not limited in the present application. Exemplarily, the noise reduction tire includes two rows of third sipes 50 arranged symmetrically along the axial direction X, and each row of third sipes 50 includes a plurality of third sipes 50, and the number of third sipes 50 is not limited in the embodiments of the present application, for example, the number can also be 4 rows, 6 rows, 8 rows, etc.

[0065] Although the present application has been illustrated and described with reference to certain preferred embodiments thereof, it should be understood that the above description is intended to be illustrative only and not limiting of the application. Changes can be made in form and detail, including the use of equivalents, without departing from the spirit of the application.

Claims

1. A noise reducing tire characterized in that, The tire comprises: a tire crown comprising a tire tread, the tire tread comprising a center region, the center region being circumferentially disposed around; a tire side body, axially, the tire side body being spaced apart from the tire crown on both sides away from the center region, the tire side body comprising a tire shoulder; at least one first sipe, along the axial direction, the first sipe being symmetrically disposed on both sides of the center region, the first sipe comprising a first groove and a second groove, along the axial direction, the first groove and the second groove being spaced apart on both sides of the center region, along the circumferential direction, a plurality of first reinforcing portions are spaced apart in the first groove, and a plurality of second reinforcing portions are spaced apart in the second groove, for increasing the strength of the first sipe; a plurality of second sipes, along the axial direction, the plurality of second sipes being symmetrically disposed between the first sipe and the tire side body; a plurality of third sipes, along the circumferential direction, the plurality of third sipes being symmetrically disposed on the tire shoulder.

2. The noise reducing tire of claim 1, wherein, The tire comprises: a sound insulation layer, along the radial direction, the sound insulation layer being disposed on the side of the tire crown away from the tire tread; a cushion layer, along the radial direction, the cushion layer being disposed on the side of the sound insulation layer away from the tire tread, along the circumferential direction, the first sipe being circumferentially disposed on the tire tread, and the plurality of second sipes being spaced apart on the tire tread.

3. The noise reducing tire of claim 1, wherein, The first reinforcing portion comprises a first reinforcing block, along the axial direction, both sides of the first reinforcing block are connected with the groove wall of the first groove, the first reinforcing block comprises an obliquely disposed first flow guide surface, and the projection of the first flow guide surface on the axial direction forms a first included angle with the bottom wall of the first groove; The second reinforcing portion comprises a second reinforcing block, along the axial direction, both sides of the second reinforcing block are connected with the groove wall of the second groove, the second reinforcing block comprises an obliquely disposed second flow guide surface, the projection of the second flow guide surface on the axial direction forms a second included angle with the bottom wall of the second groove, and the first included angle and the second included angle are both acute angles.

4. The noise reducing tire of claim 3, wherein, The first reinforcing block and the second reinforcing block are both in the shape of a quadrangular pyramid, the first flow guide surface is the side surface of the first reinforcing block in the shape of a quadrangular pyramid, and the second flow guide surface is the side surface of the second reinforcing block in the shape of a quadrangular pyramid.

5. The noise reducing tire of claim 3 wherein, The first reinforcing portion comprises a third reinforcing block, along the circumferential direction, the third reinforcing block is disposed on the side of the first reinforcing block away from the first flow guide surface, and along the axial direction, the third reinforcing block is connected with the side wall of the first groove; The second reinforcing portion comprises a fourth reinforcing block, along the circumferential direction, the fourth reinforcing block is disposed on the side of the second reinforcing block away from the second flow guide surface, and along the axial direction, the fourth reinforcing block is connected with the side wall of the second groove.

6. The noise reducing tire of claim 5, wherein, Along the radial direction, the height of the third reinforcing block is not higher than the height of the first reinforcing block, and the height of the fourth reinforcing block is not higher than the height of the second reinforcing block.

7. The noise reducing tire of claim 5 wherein, The third reinforcing block comprises a first inclined surface and a second inclined surface, the projections of the first inclined surface and the second inclined surface on the radial direction intersect and form a second included angle; The fourth reinforcing block comprises a third inclined surface and a fourth inclined surface, the projections of the third inclined surface and the fourth inclined surface on the radial direction intersect and form a third included angle.

8. A noise reducing tyre according to any one of claims 1 to 7, characterised in that, The plurality of second sipes includes second sipes arranged symmetrically in pairs along the axial direction, and each of the second sipes includes a third groove body.

9. A noise reducing tyre according to any one of claims 1 to 7, characterised in that, The plurality of third sipes includes fourth groove bodies arranged symmetrically in pairs along the axial direction, and the fourth groove bodies are in a triangular shape.

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