CN209365784U - A kind of rubber tyre - Google Patents

Abstract

The utility model relates to a kind of rubber tyres, including fetus face, sidewall and tire lip, the sidewall is formed by concave configuration from the surface of the sidewall to lower recess with multiple, and the surface of the concave configuration and the sidewall forms the bump for guiding air-flow.In compared with the prior art for sidewall is by way of increasing thickness and forming protrusion, scheme disclosed in the utility model really forms bump in sidewall by way of reducing material, this kind of mode not only increases the heat dissipation of the sidewall of rubber tyre, improve the service life of tire, and also reduce the weight of rubber tyre, to reduce the rolling resistance of rubber tyre, and then reduce the energy consumption of vehicle.

Description

A kind of rubber tyre

Technical field

The utility model relates to tire production design field, in particular to a kind of rubber wheel with side wall decorative pattern Tire.

Background technique

Rubber tyre includes fetus face, sidewall and tire lip, and in the actual production process, sulfurizing mould can divide into tire Face ring, sidewall ring and tire lip ring have gap, therefore fetus face after sulfurizing mould combination between two neighboring mold It will form with the boundary of sidewall and surround one week point shape line of sidewall, the boundary of sidewall and tire lip will form circular One week protective wire of tire lip.

The major function of the sidewall of rubber tyre is the shock and vibration conveyed steering, absorb road surface, simultaneously because The different parts of sidewall need to recycle support vehicle weight in rolling process, therefore deflection when sidewall is also tyre in operation Most positions.

Rubber is the non-conductor of heat, and frequent deformation is so that sidewall temperature during tire is run is in 80 DEG C Between~90 DEG C, ageing of rubber speed is accelerated at such a temperature, and ageing of rubber can further increase the deflection of sidewall, this Sidewall cracking is eventually resulted in, gas leakage occurs for tire, or even generates phenomenon of blowing out under larger external impacts.

In order to improve the heat dissipation effect of sidewall, some manufacturers devise concaveconvex structure in sidewall, by recessed The air-flow generated when male structure is with tyre rotation enhances the heat dissipation of sidewall.

Such as Publication No.: in the Chinese patent application of the artificial Bridgestone Corp of CN101166642B application, wheel At least part of the sidewall of tire, which is extended, the turbulent flow generation bump being made of ditch portion and protrusion, the utility model It lies in script sidewall and increases thickness protrusion, re-form bump, recess portion is really the basal plane of sidewall, and protrusion is higher than sidewall Basal plane；

In the Chinese patent application of the artificial Bridgestone Corp of Publication No. CN101631686B application, pneumatic tire Lateral surface be provided with the turbulent flow that extends from inner circumferential side towards peripheral side circumferentially spaced apartly along tire and generate with protrusion, the reality Increase thickness protrusion also in script sidewall with novel, protrusion is higher than sidewall basal plane；

The Chinese patent application of the artificial Bridgestone Corp of Publication No. CN102026830B application, discloses one kind Pneumatic tire is included in surface of tyre and radially extends along tire, with prominent from surface of tyre to tire width direction outside Shape multiple radial projections, multiple radial projections are arranged radially centered on tire rotation axis, and multiple radial directions are prominent It rises and is respectively provided with low protrusion and high protrusion, low protrusion is lower than high rising height, can be sent out by its contents Now the utility model is also forming radial radial projection in such a way that script tire side increases material；

Publication No. CN103796850B applies for the Chinese patent application of artificial Compagnie General Des Etablissements Michelin, discloses one Kind is used for the tire of road vehicle, and with scheduled direction of rotation, and including multiple fins, the multiple fin is arranged in On the sidewall of tire, for changing the resistance and/or lift of vehicle, which is to add fin by the side in tire Mode come achieve the purpose that change vehicle resistance or lift, also result in the increase of tire weight；

Publication No. CN105339187A applies for the Chinese patent application of artificial Compagnie General Des Etablissements Michelin, discloses one Kind tire, the sidewall of the tire includes series of projections on its outer surface, and the protruding portion replaces with recess portion, described recessed Portion and protruding portion respectively have central axis, and each protruding portion has determining geometry or arbitrary geometry and sets It sets on the surface on sidewall, protruding portion is still directly realizing in such a way that sidewall increases material.

As it can be seen that the technological means of prior art improvement tire side aerodynamic quality or tire performance itself, is all By on the basis of sidewall basal plane, protrusion is formed on the basal plane of sidewall by way of increasing material and is mutually tied with recess It closes, however this kind of technological means will increase the weight of tire, the increase of tire weight can improve the rolling resistance of tire, Jin Erti The fuel consumption of high unit mileage.

Utility model content

The purpose of the utility model is to disclose a kind of tire, to reach the mesh for improving sidewall heat dissipation performance , and the weight for reducing tire can be reached, and then reduce the rolling resistance of tire, promote the purpose of fuel economy.

In order to achieve the above objectives, rubber tyre provided by the utility model, including fetus face, sidewall and tire lip, It is characterized in that, the sidewall is formed by concave configuration from the surface of the sidewall to lower recess with multiple, it is described The surface of concave configuration and the sidewall forms the bump for guiding air-flow.

Preferably, in above-mentioned rubber tyre, the concave configuration is projected as being enclosed by lines the sidewall surface The long and narrow closed arc region formed is closed, the length radially in the rubber tyre in the long and narrow closed arc region is L is D in the width of the circumferencial direction of the rubber tyre, wherein L > D.

Preferably, in above-mentioned rubber tyre, have at the interface of the fetus face and the sidewall and divide shape line, institute Stating has protective wire at the interface of sidewall and the tire lip, divide any one radial line segments in the sidewall equally Camber line is known as the middle separated time of the sidewall, wherein

The long and narrow closed arc region is proximal part close to the one end at the rubber tyre center, far from the rubber wheel One end of tire is distal end, and the distal end extends to point shape line, and the proximal part is located at the protective wire and the tire Any position between the middle separated time of side.

Preferably, in above-mentioned rubber tyre, the long and narrow closed arc region is along the rubber tyre circumferencial direction Both ends pass through the closing of two camber lines.

Preferably, in above-mentioned rubber tyre, the arc length of two camber lines is equal.

Preferably, in above-mentioned rubber tyre, constant or any one arc of any one arc curvature of a curve Line is formed by the different tangential of multistage curvature.

Preferably, in above-mentioned rubber tyre, the distal end in the long and narrow closed arc region divides shape line to close by described, Or it is intersection closed by two camber lines.

Preferably, in above-mentioned rubber tyre, the proximal part in the long and narrow closed arc region is closed by the protective wire, Or it is closed by the proximal part blockade line between the protective wire and the middle separated time of the sidewall.

Preferably, in above-mentioned rubber tyre, the end closed arc proximal part by the proximal part blockade line When closing, the proximal part blockade line is the combination of one or more of straight line, broken line or camber line.

Preferably, in above-mentioned rubber tyre, the circle of two endpoints and the rubber tyre of the proximal part blockade line The angle between two straight lines being formed centrally is 1 °~30 °.

Preferably, in above-mentioned rubber tyre, the long and narrow closed arc region is on the rubber tyre circumferencial direction The angular range crossed over is 10 °~90 °.

Preferably, in above-mentioned rubber tyre, the proximal part in the long and narrow closed arc region is starting point, described long and narrow The distal end in closed arc region is terminating point, using the center of circle of the rubber tyre as the center of circle and round made by the excessively described starting point For starting circle, by the center of circle of the center of circle of the rubber tyre and circle made by the excessively described terminating point is to terminate circle；

There is the first base point close to starting point between the starting point and the terminating point, and close to terminating point Second base point, by the center of circle of the center of circle of the rubber tyre and circle made by excessively described first base point is the first bottom part ring, Justify the second bottom part ring using the center of circle of the rubber tyre as the center of circle and made by excessively described second base point；

To first bottom part ring by starting circle, the concave configuration from the surface of the sidewall gradually to Lower recess is to minimum point；Between first bottom part ring and second bottom part ring, the depth of the concave configuration is constant；By Second bottom part ring to the termination is justified, and the concave configuration is gradually risen up to the surface of the sidewall by minimum point.

Preferably, in above-mentioned rubber tyre, the recessed depth of first base point and second base point is 0.5mm~5mm.

Preferably, in above-mentioned rubber tyre, the round difference with the radius for terminating circle of the starting is A, described second Bottom part ring and the difference of the radius for terminating circle are B, and first bottom part ring and the difference for terminating round radius are C, wherein A/3≤B≤A/2, B/3≤C≤B/2.

Preferably, in above-mentioned rubber tyre, the distal end in the long and narrow closed arc region and the flower of the fetus face Line linking.

Preferably, in above-mentioned rubber tyre, the cross sectional shape of the concave configuration is triangle, rectangle or arc.

Preferably, in above-mentioned rubber tyre, the section of the concave configuration is triangle or rectangle, and the triangle Corner location with the rectangle is round-corner transition structure.

Preferably, in above-mentioned rubber tyre, the section of the concave configuration is arc-shaped, and the camber line for constituting the arc is Cross section contour, the cross section profile curvature of a curve is constant or the cross section contour is the camber line different by multistage curvature Tangent formation.

Preferably, in above-mentioned rubber tyre, multiple concave configurations are uniform on the circumferencial direction of the sidewall Distribution；Or bump described in one group of the surface formation of several described concave configurations and the sidewall, in the sidewall Circumferencial direction on be intervally distributed with bump described in multiple groups, the concave configuration quantity in bump described in every group it is equal or Differ.

Preferably, in above-mentioned rubber tyre, the surface of the concave configuration also has knurling structure.

As can be seen from the above technical solutions, the rubber tyre disclosed in the utility model, sidewall have multiple It is recessed downwards the concave configuration of formation by the surface of sidewall, the surface of concave configuration and sidewall is formed for guiding air-flow Bump.

Technical solution disclosed in the utility model is under foring on the basis of sidewall surface to lower recess Recess portion, for lower concave part, the surface of sidewall script is formed bulge-structure, and bulge-structure is constituted with lower concave part The bump of air-flow can be guided, to improve the air flow property of sidewall, enhances the heat dissipation of sidewall.Compared to existing Have in technology for sidewall is by way of increasing thickness and forming protrusion, the scheme disclosed in the utility model is really Bump is formd in sidewall by way of reducing material, this kind of mode not only increases dissipating for the sidewall of rubber tyre Heat, improves the service life of tire, and also reduces the weight of rubber tyre, to reduce the rolling resistance of rubber tyre Power, and then reduce the energy consumption of vehicle.

Detailed description of the invention

Fig. 1 is the local axonometric schematic diagram of the rubber tyre disclosed in a kind of embodiment of the utility model；

Fig. 2 is the local axonometric schematic diagram of another angle of rubber tyre disclosed in a kind of embodiment of the utility model；

Fig. 3 is the structural schematic diagram for showing starting circle, terminating circle, the first bottom part ring and the second bottom part ring；

Fig. 4 is starting circle, the positional diagram for terminating circle, the first bottom part ring and the second bottom part ring；

Fig. 5 is the structural schematic diagram of the sidewall of the rubber tyre disclosed in a kind of embodiment of the utility model.

Wherein, 1 is fetus face, and 2 be sidewall, and 3 be tire lip, and 4 is divide shape line, and 5 be protective wire, and 6 be concave configuration, 7 It is the bottom surface depth line of concave configuration for sidewall reference surface line, 8, e is starting circle, and f is to terminate circle, and g is the first bottom part ring, H is the second bottom part ring, and M is concave configuration depth.

Specific embodiment

The core of the utility model is to provide a kind of rubber tyre, to reach raising sidewall heat dissipation performance Purpose, and can reach reduce tire weight, and then reduce tire rolling resistance, promoted fuel economy purpose.

In order to make those skilled in the art better understand the scheme of the utility model, with reference to the accompanying drawing and specific implementation The utility model is described in further detail for mode.

The utility model Fig. 1 Fig. 2 and Fig. 5 give non-limiting example, and its object is to facilitate those skilled in the art Understanding to the utility model should not constitute any restrictions to scope of protection of the utility model.

Rubber tyre disclosed in an embodiment of the present invention, including fetus face 1, sidewall 2 and tire lip 3, tire Side 2 is formed by concave configuration 6, the table of concave configuration 6 and sidewall 2 from the surface of sidewall 2 to lower recess with multiple Face forms bump, and during tyre rotation, bump can guide air-flow, to accelerate the sky of 2 position of sidewall Flow of air speed, the air quickly flowed can take away rapidly the heat of sidewall 2, so that the radiating efficiency of sidewall 2 is improved, Improve the service life of rubber tyre.

Compared at present sidewall 2 increase thickness form protrusion by way of for, disclosed in above-described embodiment Scheme really by way of reducing material form bump in sidewall 2, this kind of mode not only increases rubber wheel The heat dissipation of tire sidewall 2, improves the service life of tire, and also reduces the weight of rubber tyre, to reduce rubber The rolling resistance of rubber tire tire, and then reduce the energy consumption of vehicle.

Understandable to be, the concrete form of concave configuration 6 is unrestricted, is tied as long as having by concave configuration 6 and protrusion The bump being configured to makes the flowing velocity of air then tire is just able to guide the air around sidewall during rotation Increase, accelerates the heat dissipation of sidewall 2.

But linear concave configuration 6 often results in the increase that tire is made an uproar, this can reduce the feeling for taking of vehicle, unfavorable In the promotion of customer experience, for this purpose, the concave configuration 6 in the present embodiment is projected as long and narrow closing arc on the surface of sidewall 2 Shape region, which be enclosed by lines, and the lines for being enclosed long and narrow closed arc region include But it is not limited to straight line, curve and broken line, why is called long and narrow closed arc region, is because the length of the arc is significantly big In the width of its own, specifically, long and narrow closed arc region is L in the length radially of rubber tyre, in rubber tyre Width on circumferencial direction be D (if the width on rubber tyre circumferencial direction in long and narrow closed arc region changes, D can be regarded as maximum width), L is much larger than D, from figure 1 it appears that concave configuration 6 is long and narrow arc.

Divide shape line 4 referring to FIG. 1, having at the interface (i.e. tire shoulder position) of fetus face 1 and sidewall 2, sidewall 2 with The boundary of tire lip 3 has protective wire 5, has a middle separated time in sidewall 2, which divides equally in sidewall 2 Any one radial line segments, therefore the middle separated time is really the camber line to round, long and narrow closed arc region is close to rubber wheel The one end at tire center is known as proximal part, and one end far from rubber tyre is distal end, in order to reach preferably pneumatic effect, telecentricity End extends to a point shape line 4, proximal part between protective wire and the middle separated time of sidewall 2 any position (including protective wire 5 and Middle separated time).

Both ends of the long and narrow closed arc region on rubber tyre circumferencial direction can be closed by two camber lines, both ends Arc length equal can not also wait, and any one camber line in this two camber lines can only have a curvature, can also To be to there is the tangential with different curvature to be formed.Certainly, long and narrow closed arc region is along rubber tyre circumferencial direction Both ends can also realize by broken line and close that broken line also can achieve the effect to form long and narrow closed arc region.

It should be noted that the distal end in long and narrow closed arc region can be closed by a point shape line 4, it can also be by above-mentioned two Camber line is intersection closed, if the camber line intersection at the both ends by long and narrow closed arc region on rubber tyre circumferencial direction realize it is remote The closing at heart end, then distal end should be round-corner transition in the tip of wedge angle type or distal end.

The proximal part in long and narrow closed arc region can be closed directly by protective wire 5, or by being located at protective wire 5 and sidewall Proximal part blockade line closing between the middle separated time in portion 2, proximal part blockade line can be any in straight line, curve or broken line One, or both any or three combination.

The end that proximal part blockade line is connected with two camber lines of the long and narrow closed arc region on rubber tyre circumferencial direction Portion is two endpoints of proximal part blockade line, if two endpoints of nearly heart end seal abutment line pass through line segment and rubber tyre respectively The center of circle is connected, then the angle between this two lines section is 1 °~30 °, which is properly termed as the nearly heart in long and narrow closed arc region Hold angular span, any numerical value in the angular range is suitable for proximal part angular span, such as 10 °, 20 ° angularly It can.

The angular range that long and narrow closed arc region entirety is crossed on rubber tyre circumferencial direction is 10 °~90 °, should Span is properly termed as the whole angular span in long and narrow closed arc region, and the acquisition of the angle is to obtain as follows: by Ray is radially made in the center of circle of rubber tyre, wherein a ray and long and narrow closed arc region are on rubber tyre circumferencial direction One end it is tangent, another ray and other end of the long and narrow closed arc region on rubber tyre circumferencial direction are tangent, then Angle between two rays is the whole angular span in long and narrow closed arc region, likewise, in the angular range Any numerical value is suitable for the whole angular span in long and narrow closed arc region, such as 20 °, 45 ° etc..

More preferably, in order to guarantee the integral strength of sidewall, rubber wheel disclosed in an embodiment of the present invention In tire, the cup depth of concave configuration 6 is changed from starting point to terminating point, please refers to Fig. 3 and Fig. 4, wherein in Fig. 3 Hacures are for the ease of observation, not representative profile, and the intersection of long and narrow arc shade and long and narrow arc blank is concave configuration 6 Bottom.The proximal part in long and narrow closed arc region is starting point, and the distal end in long and narrow closed arc region is terminating point, with rubber The center of circle of rubber tire tire is the center of circle and circle made by starting point is to originate round e excessively, as the center of circle and crosses termination using the center of circle of rubber tyre Circle made by point is termination circle f；

There is the first base point close to starting point between starting point and ending point, and close to the second bottom of terminating point Point, by the center of circle of the center of circle of rubber tyre and circle made by the first base point excessively is the first bottom part ring g, with the center of circle of rubber tyre It is the second bottom part ring h for circle made by the center of circle and the second base point excessively；

Referring to FIG. 4, by originating circle e to the first bottom part ring g, concave configuration 6 by sidewall surface gradually downward It is recessed to minimum point, between the first bottom part ring g and the second bottom part ring h, the depth of concave configuration 6 is constant, by the second bottom part ring h To circle f is terminated, concave configuration 6 is gradually risen up to the surface of sidewall 2 by minimum point.On the one hand this kind design can guarantee to be formed On the other hand concaveconvex structure can also ensure that the intensity of sidewall 2 meets technical requirements.

First base point and the second base point are the minimum point of concave configuration 6, the first base point and the second base point and tire Difference in height between 2 surface of side is 0.5mm~5mm, and according to different sidewall thickness, which can guarantee tire Adaptive change is carried out under the premise of 2 intensity of side.

Referring to FIG. 4, the difference for originating circle e and terminating the radius of circle f is A, the second bottom part ring h and terminate round f radius it Difference is B, and the first bottom part ring g and the difference for terminating the radius of circle f are C, and A, B and C meet following relationship, A/3≤B≤A/2, B/3≤C ≤B/2。

In order to further increase the heat dissipation effect of sidewall 2, annular knurl knot can also be set on the surface of concave configuration 6 Structure, this can increase the contact area between sidewall 2 and air, so that heat dissipation effect is improved, the telecentricity of long and narrow closing camber line End can be connected with the decorative pattern of fetus face 1, to form the whole pattern structure of fetus face 1 Yu sidewall 2.

The cross sectional shape of concave configuration 6 is unrestricted, and the cross sectional shape of concave configuration 6 obtains as follows: crossing the The anchor ring of one bottom part ring g is known as concave configuration 6 along the section that the axial direction of rubber tyre cuts the concave configuration 6 obtained of sidewall 2 Section, which can be triangle, rectangle, arc or any other rule or irregular shape, such as this case In non-limiting embodiments shown in the drawings, the cross sectional shape of concave configuration 6 is upside-down triangle shape.

It is well known that wedge angle position is easy to appear stress concentration phenomenon, for this purpose, the cross sectional shape in concave configuration 6 is three When angular or rectangle, the corner location of triangle and rectangle is designed as round-corner transition structure, to avoid stress concentration, improves rubber The service life of tire.

When the section of concave configuration 6 is arc-shaped, the camber line for constituting arc is properly termed as cross section contour, cross section contour Can only have a curvature or cross section contour is formed by the different tangential of multistage curvature.

Multiple concave configurations 6 set by sidewall can be uniformly distributed on the circumferencial direction of entire sidewall 2；Or The surface of several concave configurations 6 and sidewall 2 forms one group of bump, is arranged at intervals on the circumferencial direction of sidewall 2 Multiple groups bump, as shown in Figure 5, the quantity of the concave configuration in every group of bump can be equal, can not also wait, in Fig. 5 Shown in rubber tyre, the quantity of the concave configuration in every group of bump is with regard to unequal.

The quantity of set concave configuration is unrestricted in entire sidewall 2, such as can be 2~360, concave configuration The area of 6 covering sidewalls 2 theoretically can be 100% any one numerical value below.

To sum up, the scheme disclosed in the utility model forms really by way of reducing material in sidewall recessed Protrusion, this kind of mode not only increase the heat dissipation of rubber tyre sidewall, improve the service life of tire, and also reduce The weight of rubber tyre, so that the rolling resistance of rubber tyre is reduced, to reduce the energy consumption of vehicle indirectly.

Rubber tyre provided by the utility model is described in detail above.Specific case pair used herein The principles of the present invention and embodiment are expounded, and the above embodiments are only used to help understand, and this is practical new The method and its core concept of type.It is practical not departing from it should be pointed out that for those skilled in the art Under the premise of new principle, several improvements and modifications can be made to this utility model, these improvement and modification also fall into this In the protection scope of utility model claims.

Claims (20)

1. a kind of rubber tyre, including fetus face (1), sidewall (2) and tire lip (3), which is characterized in that the sidewall (2) have it is multiple be formed by concave configuration (6) from the surface of the sidewall (2) to lower recess, the concave configuration (6) with The surface of the sidewall (2) forms the bump for guiding air-flow.

2. rubber tyre according to claim 1, which is characterized in that the concave configuration (6) is in the sidewall (2) table The long and narrow closed arc region for being projected as being enclosed by lines in face, the long and narrow closed arc region is in the rubber tyre Length radially be L, the rubber tyre circumferencial direction width be D, wherein L > D.

3. rubber tyre according to claim 2, which is characterized in that point of the fetus face (1) and the sidewall (2) Interface, which has, to be divided shape line (4), is had protective wire (5) at the interface of the sidewall (2) and the tire lip (3), is divided equally The camber line of any one radial line segments on the sidewall (2) is known as the middle separated time of the sidewall (2), wherein

The long and narrow closed arc region is known as proximal part close to the one end at the rubber tyre center, far from the rubber tyre One end be known as distal end, the distal end extends to point shape line (4), the proximal part be located at the protective wire (5) with Any position between the middle separated time of the sidewall (2).

4. rubber tyre according to claim 3, which is characterized in that the long and narrow closed arc region is along the rubber wheel Both ends on tire circumferencial direction pass through two camber line closings.

5. rubber tyre according to claim 4, which is characterized in that the arc length of two camber lines is equal.

6. rubber tyre according to claim 4, which is characterized in that any one arc curvature of a curve is constant, or Any one camber line is formed by the different tangential of multistage curvature.

7. rubber tyre according to claim 4, which is characterized in that the distal end in the long and narrow closed arc region is by institute A point shape line closing is stated, or intersection closed by two camber lines.

8. according to rubber tyre described in claim 3-7 any one, which is characterized in that the long and narrow closed arc region Proximal part is closed by the protective wire (5), or by between the protective wire (5) and the middle separated time of the sidewall (2) Proximal part blockade line closing.

9. rubber tyre according to claim 8, which is characterized in that the long and narrow closed arc region proximal part by When the proximal part blockade line is closed, the proximal part blockade line is the group of one or more of straight line, broken line or camber line It closes.

10. rubber tyre according to claim 9, which is characterized in that two endpoints of the proximal part blockade line and institute The angle stated between two straight lines of the center of circle formation of rubber tyre is 1 °~30 °.

11. rubber tyre according to claim 2, which is characterized in that the long and narrow closed arc region is in the rubber The angular range crossed on tire circumferential direction is 10 °~90 °.

12. rubber tyre according to claim 3, which is characterized in that the proximal part in the long and narrow closed arc region is Starting point, the distal end in the long and narrow closed arc region are terminating point, as the center of circle and cross institute using the center of circle of the rubber tyre It is round (e) for starting to state circle made by starting point, it is using the center of circle of the rubber tyre as the center of circle and round made by the excessively described terminating point To terminate circle (f)；

There is the first base point close to starting point between the starting point and the terminating point, and close to the second of terminating point Base point, by the center of circle of the center of circle of the rubber tyre and circle made by excessively described first base point is the first bottom part ring (g), with The center of circle of the rubber tyre is the second bottom part ring (h) of circle made by the center of circle and excessively described second base point；

To first bottom part ring (g) by starting circle (e), the concave configuration (6) by the sidewall (2) table Face is recessed to minimum point gradually downward；Between first bottom part ring (g) and second bottom part ring (h), the recessed knot The depth of structure is constant；By second bottom part ring (h) to terminations justify (f), the concave configuration (6) by minimum point gradually on Rise to the surface of the sidewall (2).

13. rubber tyre according to claim 12, which is characterized in that first base point and second base point Recessed depth be 0.5mm~5mm.

14. rubber tyre according to claim 12, which is characterized in that described to originate circle (e) and the termination circle (f) The difference of radius be A, second bottom part ring (h) and it is described terminate circle (f) radius difference be B, first bottom part ring (g) and The difference of the radius for terminating circle (f) is C, wherein A/3≤B≤A/2, B/3≤C≤B/2.

15. rubber tyre according to claim 3, which is characterized in that the distal end in the long and narrow closed arc region with The decorative pattern of the fetus face is connected.

16. according to claim 1-7, rubber tyre described in 9-15 any one, which is characterized in that the concave configuration (6) Cross sectional shape be triangle, rectangle or arc.

17. rubber tyre according to claim 16, which is characterized in that the section of the concave configuration (6) is triangle Or rectangle, and the corner location of the triangle and the rectangle is round-corner transition structure.

18. rubber tyre according to claim 16, which is characterized in that the section of the concave configuration (6) is arc-shaped, structure Camber line at the arc is cross section contour, the cross section profile curvature of a curve is constant or the cross section contour be by The different tangential of multistage curvature is formed.

19. rubber tyre according to claim 1, which is characterized in that multiple concave configurations (6) are in the sidewall Circumferencial direction on be uniformly distributed；Or surface one group of institute of formation of several described concave configurations (6) and the sidewall (2) Bump is stated, is intervally distributed with bump described in multiple groups on the circumferencial direction of the sidewall (2), in bump described in every group The concave configuration quantity it is equal or different.

20. according to claim 1-7, rubber tyre described in 9-15,17-19 any one, which is characterized in that the recessed knot The surface of structure (6) also has knurling structure.