CN204149781U - Air-inflation tyre - Google Patents
Air-inflation tyre Download PDFInfo
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- CN204149781U CN204149781U CN201420375827.6U CN201420375827U CN204149781U CN 204149781 U CN204149781 U CN 204149781U CN 201420375827 U CN201420375827 U CN 201420375827U CN 204149781 U CN204149781 U CN 204149781U
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Abstract
The utility model provides a kind of and improves the toe of resistance to heel polishing machine, and balancedly can obtain road surface ground connection property, edge effect and water removal effect, and improves the air-inflation tyre of ice face performance.Its solution is as follows: tire sipe (10) has tire sipe width and is greater than the tire sipe width (W) of tread wide cut region (10A) from tread position separated by a distance; Wide cut region (10A) is formed as follows: the wall (10a), (10b) that the groove (4) extended along tire sipe (10) depth direction (M) are disposed alternately at tire sipe both sides along long dimensional directions (N); Each groove (4) has from groove (4) bottom land (4a) raised (8) outstanding to opposite side tire sipe wall; Multiple projection (8) arranges at tire sipe (10) depth direction (M); Projection (8) overhang (p1) is set as the line of centers (Ce) being no more than tread tire sipe width (W).
Description
Technical field
The utility model relates to a kind of air-inflation tyre, and described air-inflation tyre is formed with tire sipe at the ground contacting part of tread.
Background technology
Usually, studless tire is formed with the otch being referred to as tire sipe at the ground contacting part of pattern block, ribs etc., the edge effect that this tire sipe plays, water removal effect, can improve the performance (hereinafter referred to as ice face performance) travelled on the ice face that friction coefficient is lower.But, because rubber is incompressibility, when the overload of tire, the activity frequency conversion of the tyre surface contacted with road surface is numerous, time particularly on ice face, tyre surface slides and the peristome of tire sipe is easily narrowed, the situation that can produce edge effect that tire sipe should play, water removal effect thus and decline with the close property on road surface.
For solving the problem, Patent Document 1 discloses following a kind of tire, that is, as shown in Figure 10 pattern block 1 is formed with the tire sipe 10 with wide cut region 10A.Wide cut region 10A is formed so that groove 4 is arranged multiple modes along the long dimensional directions of tire sipe, and described groove 4 extends along the depth direction of tire sipe 10.During the overload of pattern block 1, owing to allowing ground contacting part to shrivel to radially inner side to a certain extent by wide cut region 10A, therefore the sipe openings of tread can be suppressed for closed trend, prevent sipe openings blocked thus, thus suitably guarantee water removal effect and the close property with road surface.
Prior art document:
Patent documentation
Patent documentation 1: Japanese Laid-Open 2010-228515 publication
Utility model content
The problem that utility model will solve
But, tire described in above-mentioned patent documentation 1, owing to allowing ground contacting part to shrivel to radially inner side by wide width part, therefore there will be situation about excessively shriveling according to the size of wide width part, although excellent with the close property on road surface, there will be on the contrary because shriveling the situation making edge effect impaired.Due to by balancedly obtaining road surface close property, edge effect and water removal effect to improve ice face performance, be therefore necessary to suppress excessively shriveling of ground contacting part.
In addition, being caused the width of the tire sipe exposed from tread by wearing and tearing, when producing great changes along with being worn, the problem relevant to the toe of resistance to heel polishing machine can be produced.
The utility model is conceived to this problem and proposes, its object is to provide a kind of improve the toe of resistance to heel polishing machine while, balancedly can obtain road surface ground connection property, edge effect and water removal effect, thus improve the air-inflation tyre of ice face performance.
Solve the method for problem
The utility model for achieving the above object, adopts following methods.
Namely, air-inflation tyre of the present utility model, tire sipe is formed at its tread, it is characterized in that, described tire sipe, from described tread position separated by a distance, there is wide cut region, the tire sipe width in described wide cut region is greater than the tire sipe width of tread, described wide cut region is formed as follows: the groove extended by the depth direction along described tire sipe, long dimensional directions along described tire sipe is disposed alternately at the wall of tire sipe both sides, groove described in each has outstanding raised of tire sipe wall from from the bottom land of this groove to opposite side, described projection is arranged with multiple at the depth direction of described tire sipe, the overhang of described projection is set as the line of centers of the tire sipe width being no more than tread.
Like this, owing to being formed with projection at the groove causing pattern block to shrivel, therefore can realize improving pattern block rigidity, and suppress excessively shrivel and improve edge effect, thus improve ice face performance.Further, the overhang due to projection is no more than the center of the tire sipe width of tread, hygroscopic character (moisture removal property) therefore can be suppressed to reduce, thus can improve ice face performance.However, owing to forming projection at groove, and do not formed compared with bossed situation, the tire sipe width exposed from tread can be suppressed to change, therefore, it is possible to improve the toe of resistance to heel wearability.Therefore, the toe of resistance to heel polishing machine can be improved, and balancedly can obtain road surface ground connection property, edge effect and water removal effect, thus improve ice face performance.
Preferably, reduce for suppressing water-scavenging capability, the length of the described projection in the long dimensional directions of tire sipe is less than the length of described groove, when seeing along tire sipe thickness direction, in order to make the described projection of the tire sipe wall being positioned at side not overlap with the described projection of the tire sipe wall being positioned at opposite side, make the position of two projections in the long dimensional directions of tire sipe different.
For improving ice face performance and the toe of resistance to heel polishing machine, preferably, described multiple projection arranges and is configured to zigzag, i.e. zig-zag as follows: along tire sipe depth direction from the dark side of shallow side direction, described projection is different mutually in the position of the long dimensional directions of tire sipe.
Reduce for suppressing water-scavenging capability, preferably, the length of the described projection in the long dimensional directions of tire sipe is identical with the length of described groove, and the overhang of described projection is less than described depth of groove, to make the tire sipe wall of described projection not from described groove to opposite side outstanding.
For realizing raising based on the pattern block rigidity of projection and hygroscopic character simultaneously, preferably, make the described projection of the dark side of the depth direction being positioned at described tire sipe, its overhang is less than the overhang of the described projection being positioned at shallow side.
For improving ice face performance and the toe of resistance to heel polishing machine, preferably, described groove tilts to the long dimensional directions of described tire sipe, and extends to the depth direction of described tire sipe.
For improving ice face performance, preferably, described groove type becomes to the bending V-shaped of the long dimensional directions of described tire sipe.
Accompanying drawing explanation
Fig. 1 is the expansion drawing of an example of the tread that the utility model tire is shown.
Fig. 2 is along elevation profile block diagram during its long dimensional directions segmentation by tire sipe.
Fig. 3 A is the figure representing tire sipe wall.
Fig. 3 B is the drawing in side sectional elevation of the A1-A1 along Fig. 3 A.
Fig. 3 C is the longitudinal diagram of the A2-A2 along Fig. 3 A
Fig. 4 is the figure of the variation representing tire sipe wall.
Fig. 5 is the longitudinal diagram of the above-mentioned variation in addition of tire sipe.
Fig. 6 A is the figure representing the above-mentioned tire sipe wall of variation in addition.
Fig. 6 B is the drawing in side sectional elevation of the A3-A3 along Fig. 6 A.
Fig. 6 C is the longitudinal diagram of the A4-A4 along Fig. 6 A.
Fig. 7 is the longitudinal diagram of the above-mentioned variation in addition of tire sipe.
Fig. 8 is the figure of the above-mentioned variation in addition representing tire sipe wall.
Fig. 9 is the figure of the above-mentioned variation in addition representing tire sipe wall.
Figure 10 is along elevation profile block diagram during its long dimensional directions segmentation by existing tire sipe.
Description of reference numerals
10 tire sipes
10A wide cut region
10a, 10b tire sipe wall
4,5,7 grooves
8,9 projections
The tire sipe width of W tread
The line of centers of the tire sipe width of Ce tread
The long dimensional directions of N tire sipe
The depth direction of M tire sipe
The thickness direction of L tire sipe
Detailed description of the invention
Below, be described with reference to the air-inflation tyre of accompanying drawing to an embodiment of the present utility model.Fig. 1 is the expansion drawing of an example of the tread that the utility model tire is shown.This air-inflation tyre has tread contour, and this tread contour has multiple pattern block 1 (belonging to an example of ground contacting part).Pattern block 1 is by the main line 3a that extends along tire circumferential direction and intersect with this main line 3a the traverse furrow groove 3b extended and divide, and is arranged with four row pattern blocks 1 across the ribs 2 extended along tire circumferential direction.
At each pattern block 1, be arranged with many tire sipes 10 with linearity peristome at predetermined intervals in parallel.In the present embodiment, although show tire sipe 10 to be parallel to tire width direction and the example extended, the utility model is not limited to this.Tire sipe 10 is open tire sipes of the sidewall opening at pattern block 1, but also can in pattern block 1 inside formation terminal in its two ends.But according to the utility model, due to excessively shriveling of pattern block 1 can be suppressed, therefore when tire sipe be open tire sipe and pattern block 1 than when being easier to shrivel, the utility model is especially preferred.In the present embodiment, the shape of the tire sipe 10 of tread is linearity, but also can be curve-like.
Fig. 2 is along elevation profile block diagram during its long dimensional directions segmentation by tire sipe 10.Fig. 3 A is the figure representing tire sipe wall.Fig. 3 B is the drawing in side sectional elevation of the A1-A1 along Fig. 3 A.Fig. 3 C is the longitudinal diagram of the A2-A2 along Fig. 3 A.As shown in Fig. 2 and 3A-C, tire sipe 10 from tread separated by a distance d1 part there is wide cut region 10A, the tire sipe width of this wide cut region 10A is greater than the tire sipe width W of tread.Wide cut region 10A is formed as follows: the groove 4 extended by the depth direction M along tire sipe 10, the long dimensional directions N along tire sipe 10 is disposed alternately at wall 10a, 10b of tire sipe both sides.The value of the tire sipe width of wide cut region 10A is, the tire sipe width W of tread is added the value of the degree of depth t of groove 4.
Wide cut region 10A is formed as in figure 3 a with the rectangle that dotted line surrounds, and is arranged on the position of the d2 separated by a distance from the two ends of the long dimensional directions N of tire sipe 10.At each tire sipe wall 10a, 10b, multiple groove 4 is spaced apart and arrange along long dimensional directions, and tire sipe width becomes large part and configures discontinuously along long dimensional directions.Therefore, while guaranteeing tire sipe 10 water removal effect, also can suppress excessively shriveling of pattern block 1, and guarantee edge effect and sticking friction (sticking friction) effect, thus ice face performance can be improved.
In the present embodiment, as shown in Figure 3 B, for the groove 4 of tire sipe wall 10a and the groove 4 of tire sipe wall 10b, the position part of long dimensional directions N is repeated, and mutually oppositely caves in.Accordingly, the continuity along the groove 4 of long dimensional directions N is guaranteed, the partial continuous that the tire sipe width in the 10A entirety of wide cut region is larger is formed, and therefore can effectively improve the water removal effect produced by tire sipe 10.In addition, in the utility model, each groove 4 being arranged at tire sipe wall 10a, 10b does not repeat can at long dimensional directions N yet.
As shown in Fig. 2 and Fig. 3 A-C, each groove 4 have tire sipe wall from from the bottom land 4a of groove 4 to opposite side outstanding raised 8.Projection 8 is multiple in the depth direction M arrangement spaced apart of tire sipe 10.In the present embodiment, a groove 4 is provided with three projections 8, but meets two or more, but is not limited thereto.Such as can two or four be set.The overhang p1 of projection 8 is set as the line of centers Ce of the tire sipe width W being no more than tread.Because if projection 8 exceedes described line of centers Ce, then hygroscopic character is obviously impaired, finally causes the deterioration of ice face performance.In the present embodiment, as shown in Figure 3, in a groove 4, the overhang of all projections 8 is set as identical value.
In the present embodiment, as shown in Figure 3 B, the length e2 of the projection 8 on the long dimensional directions N of tire sipe is less than the length e1 of groove 4.As shown in Figure 3A, projection 8 and other projections 8 being arranged on same groove 4, in the position consistency of the long dimensional directions N of tire sipe.As shown in Figure 3 B, for being positioned at the projection 8 of tire sipe wall 10a of side and the projection 8 of tire sipe wall 10b being positioned at opposite side, make these two projections 8 different in the position of the long dimensional directions N of tire sipe, thus make when seeing along tire sipe thickness direction L the two not overlap.That is, these two projections 8 are configured to its zigzag (zig-zag) different mutually in the position of the long dimensional directions N of tire sipe.If arrange projection like this, even if then tire sipe 10 forms closed shape, also can prevent projection 8 from contacting with each other.
In addition, in the present embodiment, as shown in Figure 3A, the rectangular shape of projection 8 when seeing along tire sipe thickness direction L, but shape is not limited thereto, such as, may also be the polygons such as triangle, circle or ellipse.
In the variation of the tire sipe 10 shown in Fig. 4, multiple projection 8 is configured to zigzag (zig-zag) as follows: along tire sipe depth direction M from the dark side of shallow side direction, and projection 8 is different mutually in the position of the long dimensional directions N of tire sipe.If arrange in like fashion, arrange compared with this situation with multiple projections 8 as shown in Figure 3A according to the mode identical with the position of the long dimensional directions N of tire sipe, the position of raising pattern block rigidity can be made to be dispersed in the long dimensional directions N of tire sipe.
In the variation of the tire sipe 10 shown in Fig. 5, in the projection 8 of the dark side of the depth direction M of tire sipe 10, its overhang is less than the overhang of the projection 8 being positioned at shallow side.About the arrangement of projection 8, as shown in Figure 3A, each projection 8 straight-though arrangement on depth direction M, as shown in Figure 4, each projection 8 forms zigzag (serration) along depth direction M arrangement and also can.
Fig. 6 A is the variation of tire sipe 10, is the figure representing tire sipe 10 tire sipe wall.Fig. 6 B is the drawing in side sectional elevation of the A3-A3 along Fig. 6 A.Fig. 6 C is the longitudinal diagram of the A4-A4 along Fig. 6 A.In the variation of the tire sipe 10 shown in Fig. 6 A-C, the length e2 of the projection 9 on the long dimensional directions N of tire sipe is identical with the length e1 of groove 4.Projection 9 is formed as: give prominence to and the ribs shape extended along the long dimensional directions N of tire sipe from the bottom land 4a of groove 4.For making projection 9 not outstanding to opposite side tire sipe side surface side from groove 4, the overhang p2 of projection 9 is set smaller than the degree of depth t of groove 4.Certainly, if do not give prominence to from groove 4, be then positioned at the projection of the dark side of tire sipe depth direction M, its overhang can be less than the overhang of the projection being positioned at shallow side.
In addition, as shown in above-mentioned Fig. 3 C, Fig. 5 and Fig. 6 C, the projection 8,9 of the projection 8,9 of the tire sipe wall 10a of side and the tire sipe wall 10b of opposite side, in the position consistency of tire sipe depth direction M, but the position of two projections 8,9 on tire sipe depth direction M as shown in Figure 7, also can be made different.
In addition, in the stage being worn down to wide cut region 10A and exposing from tread, owing to adding the marginal portion be made up of the cell wall of groove 4, therefore can further improve ice face performance.And in the 10A of wide cut region, because groove 4 to be disposed alternately at wall 10a, 10b of tire sipe both sides along long dimensional directions N, therefore in the process be worn, the tire sipe width exposed from tread can not change suddenly, thus can guarantee the good toe of resistance to heel (toe and heel) polishing machine.And then, be formed with projection 8,9 at groove 4, therefore compared with being only formed with the situation of groove 4, the tire sipe width exposed from tread can be suppressed further to change suddenly.
At the wearing and tearing initial stage, because wide cut region 10A does not expose from tread, therefore when making the peristome of tire sipe 10 narrow, wide cut region 10A is also difficult to close.Such as, will be set as that tire sipe degree of depth D is set as the 30-80% of the main line 3a degree of depth, to fully demonstrate the edge effect based on tire sipe 10 apart from tread 1-3.5mm apart from d1.From the viewpoint of guaranteeing the above-mentioned effect of ice face performance of improving, preferably, the height h of wide cut region 10A is set as the 50-95% of tire sipe degree of depth D.
Preferably, wide cut region 10A exceedes 50% even 60% and extended from tread of tire sipe degree of depth D.Wide cut region 10A also can arrive the bottom to tire sipe 10, but when not reaching the bottom of tire sipe 10 as shown in the present embodiment, groove 4 is not provided with bottom tire sipe, therefore can not form the part that stress is easily concentrated bottom tire sipe, thus the generation of be full of cracks can be suppressed.
At this tire sipe 10, because wide cut region 10A is arranged separated by a distance from the two ends of the long dimensional directions N of tire sipe 10, therefore can guarantee the rigidity at the both ends of tire sipe 10, thus excessively shriveling of pattern block 1 can be suppressed more effectively.Therefore, the edge effect of tire sipe 10 and the sticking friction effect on pattern block surface can be improved, thus play better ice face performance.Distance d2 such as can be set as the 1.5-6mm apart from pattern block edge.
In the present embodiment, the groove 4 of tire sipe wall 10a and the groove 4 of tire sipe wall 10b, make a part for the position of long dimensional directions N repeat, and mutually oppositely cave in.Accordingly, the continuity along the groove 4 of long dimensional directions N is guaranteed, the partial continuous that the tire sipe width in the 10A entirety of wide cut region is larger is formed, and therefore can effectively improve the water removal effect produced by tire sipe 10.In addition, in the utility model, do not repeat can at long dimensional directions N between the groove 4 being arranged at each tire sipe wall 10a, 10b yet.
The thickness t of groove 4, is preferably the 75-150% of tire sipe width W.More than 75% of tire sipe width W time, the water removal effect of tire sipe 10 can be improved, guarantee the marginal portion be made up of the cell wall of groove 4 simultaneously, thus make ice face performance better.In addition, less than 150% of tire sipe width W time, can prevent the rigidity of pattern block 1 from excessively reducing.From the viewpoint of fully demonstrating the edge effect that produced by tire sipe 10, tire sipe width W is preferably 0.2-0.6mm.
In the variation of the tire sipe 10 shown in Fig. 8, groove 5 tilts to long dimensional directions N, and extends to the depth direction of tire sipe 10.According to this structure, when pattern block 1 shrivels, opposite one another between tire sipe wall 10a, 10b, each raised line 6 between groove 5 can abut along depth direction, therefore can strongly suppress excessively shriveling of pattern block 1, thus improve ice face performance.In addition, along with being worn, because the position of the groove 5 exposed from tread changes, therefore always at a place, thus the generation of heel toe wearing and tearing can not suitably can be suppressed in the place of the peristome generation application force of tire sipe 10.
In the variation of the tire sipe 10 shown in Fig. 9, groove 7 is formed as to the bending V-shaped of long dimensional directions N.In the structure shown here, compared with situation about only tilting to a direction with groove, tire sipe 10 is at the rigidity reinforced of depth direction, and the activity of pattern block 1 can not always in a direction.Therefore can strongly suppress excessively shriveling of pattern block 1, thus improve ice face performance.In addition, connect this V-shaped at depth direction, form zigzag (zig-zag) to make groove 7 and also can.
As mentioned above, the air-inflation tyre of the present embodiment is the air-inflation tyre being formed with tire sipe 10 at tread, tire sipe 10, from tread separated by a distance d1 part there is wide cut region 10A, the tire sipe width of this wide cut region 10A is greater than the tire sipe width W of tread.Wide cut region 10A is formed as follows: the groove 4,5,7 extended by the depth direction M along tire sipe 10, the long dimensional directions N along tire sipe 10 is disposed alternately at wall 10a, 10b of tire sipe both sides.Each groove 4,5,7 have tire sipe wall from from the bottom land 4a of groove to opposite side outstanding raised 8,9, projection 8,9 arranges multiple at the depth direction M of tire sipe 10, and overhang p1, the p2 of projection 8,9 are set as the line of centers C of the tire sipe width W being no more than tread.
As mentioned above, owing to being formed with projection 8,9 at the groove 4,5,7 causing pattern block to shrivel, therefore can improving pattern block rigidity and suppress excessively to shrivel, thus edge effect and ice face performance can be improved.Overhang p1, the p2 of projection 8,9 are set to the center of the tire sipe width be no more than on tread, therefore can suppress the reduction of hygroscopic character (moisture removal property), thus improve ice face performance.In addition, owing to being formed with projection 8,9 at groove 4,5,7, therefore compared with not being formed with the situation of projection 8,9, the tire sipe width exposed from tread can be suppressed to change, thus the toe of resistance to heel polishing machine can be improved.Therefore, while the raising toe of resistance to heel polishing machine, balancedly can obtain road surface ground connection property, edge effect and water removal effect, thus improve ice face performance.
In the present embodiment, the length e2 of the projection 8 on the long dimensional directions N of tire sipe is less than the length of groove 4, in order to when seeing along tire sipe thickness direction L, the projection 8 of the tire sipe wall 10a being positioned at side is not overlapped with the projection 8 of the tire sipe wall 10b being positioned at opposite side, makes two projections 8 different in the position of the long dimensional directions N of tire sipe.
As mentioned above, between groove 4 and projection 8, form space, therefore can improve hygroscopic character.In addition, make projection 8 different in the position of the long dimensional directions N of tire sipe, to make not overlap when seeing along tire sipe thickness direction L, therefore, even if tire sipe 10 is formed close-shaped, also can prevent from contacting with each other between projection 8, thus the reduction of water-scavenging capability can be suppressed.
In the present embodiment, multiple projection 8 is configured to zigzag (zig-zag) as follows: along tire sipe depth direction M from the dark side of shallow side direction, and projection 8 is different mutually in the position of the long dimensional directions N of tire sipe.
According to this structure, compared with situation about configuring in the mode that the position of the long dimensional directions N of tire sipe is identical with multiple projection 8, because the position of improving pattern block rigidity is dispersed in the long dimensional directions N of tire sipe, ice face performance and the toe of resistance to heel polishing machine therefore can be improved.
In the present embodiment, the length e2 of the projection 9 on the long dimensional directions N of tire sipe is identical with the length of groove 4.The overhang p2 of projection 9 is set smaller than the degree of depth t of groove 4, makes the tire sipe side surface side of projection 9 not from groove 4 to opposite side outstanding.
As mentioned above, because the length e2 of the projection 9 on the long dimensional directions N of tire sipe is identical with the length of groove 4, therefore projection 9 can be used as ribs raising pattern block rigidity, thus improves ice face performance.And the overhang p2 of projection 9 is less than the degree of depth t of groove 4, the tire sipe side surface side of projection 9 not from groove 4 to opposite side is outstanding, therefore, even if tire sipe 10 is formed close-shaped, also can prevent contacting with each other between projection 9, thus suppress the reduction of moisture removal property.
In the present embodiment, the projection 8,9 being positioned at the dark side of the depth direction M of tire sipe 10 is less than the overhang of the projection 8,9 of shallow side mode with its overhang is formed.
The shallow region of tire sipe is more easily more movable than dark region, even if projection is large, absorptive reducing amount is also very little.On the contrary, due to the region activity more difficult than shallow region that tire sipe is dark, therefore, if projection is large, absorptive reducing amount also increases.Therefore, as shown in said structure, if change the overhang of projection 8,9 corresponding to the depth location of tire sipe, then to coordinate the mode of the activity of tire sipe 10, can realize raising and the hygroscopic character of pattern block rigidity, be preferred simultaneously viewed from this aspect.
In the present embodiment, groove 5 tilts to the long dimensional directions N of tire sipe 10, and extends to the depth direction M of tire sipe 10.According to this structure, when ground contacting part shrivels, between tire sipe wall opposite one another, each raised line between groove can abut along depth direction, therefore, it is possible to strongly suppress excessively shriveling of ground contacting part, thus improve ice face performance well.In addition, along with being worn, because the groove location exposed from tread changes, therefore can not be amesiality in the place of the peristome generation application force of tire sipe, thus suitably can suppress the generation of heel toe wearing and tearing.
In the present embodiment, groove 7 is formed as to the bending V-shaped of the long dimensional directions N of tire sipe 10.According to this structure, compared with situation about only tilting to a direction with groove, the rigidity of the depth direction of tire sipe can be improved well, and the activity of ground contacting part can not be partial to a direction, therefore can strongly suppress excessively shriveling of ground contacting part, thus ice face performance can be improved further.
Embodiment
In order to specifically represent structure of the present utility model and effect, following embodiment is assessed as follows.
(1) ice face turning performance (example of ice face performance)
Tire is arranged on actual vehicle (the 4WD box car of 1500cc level), when measuring brand-new and after being worn (state that wide cut region is exposed from tread), with the horizontal force value time speed turning driving of 20km/h (J type turning driving) on ice face.Comparative example 1 has been carried out Index Assessment as 100, and the larger then horizontal force value of numerical value is larger, represents that ice face turning performance is better.
(2) resistance to height polishing machine
Tire is arranged on actual vehicle (the 4WD box car of 1500cc level), after travelling the Ordinary road of 12000km, measures heel toe abrasion loss (with the difference of the abrasion loss of rear side on front side of the turn direction of tire sipe).The less toe abrasion loss of then calling in person of numerical value is less, represents that the toe of resistance to heel polishing machine is better.
Comparative example 1,2
To wide cut region 10A (groove 4) as shown in Figure 10 be had and not form bossed tire as comparative example 1 at groove 4.Groove 4 shown in Fig. 2 and Fig. 3 A-C is formed with projection 8 and this projection 8 exceedes the tire of the line of centers Ce of the tire sipe width W of tread as comparative example 2.Tire size is 195/65R15, and the main line degree of depth is 8.7mm, and the tire sipe degree of depth is 6.3mm, and the tire sipe thickness of tread is 0.3mm, and the tire sipe thickness of wide width part is 0.9mm (thickness of each wide width part is 0.3mm).
Embodiment 1
Shape have employed the tire sipe shape shown in Fig. 2 and Fig. 3 A-C.The overhang p1 of projection 8 is set as the line of centers Ce of the tire sipe width W being no more than tread.Projection 8 forms a line along tire sipe depth direction M.
Embodiment 2
Shape have employed the tire sipe shape shown in Fig. 5.From the dark side of shallow side direction, the overhang of projection 8 reduces gradually.In addition identical with embodiment 1.
Embodiment 3
Shape have employed the tire sipe shape shown in Fig. 4, and projection 8 is configured to its zig-zag mutually staggered in the position of the long dimensional directions N of tire sipe.In addition identical with embodiment 2.
Embodiment 4
Shape have employed the tire sipe shape shown in Fig. 6 A-C.On the long dimensional directions N of tire sipe, make the length of projection 9 consistent with the length e2 of groove 4.In addition identical with embodiment 1.
[table 1]
Can find out with reference to table 1, compared with comparative example 1, the turning performance on ice of embodiment 1-4 and polishing machine increase.It can thus be appreciated that it is effectively for forming projection 8,9 at groove 4,7,5.On the other hand, at aspect of performance on ice, comparative example 2 worsens to some extent compared with comparative example 1.This is because if projection 8,9 exceedes the line of centers Ce of tire sipe, then hygroscopic character will obviously worsen, along with absorptive deterioration, performance will also be worsened on ice.Compared with embodiment 1, the performance on ice of embodiment 2 improves more, this is because make the overhang of projection 8 change accordingly with the tire sipe degree of depth and create impact to performance on ice.Compared with embodiment 2, the performance on ice in embodiment 3 and polishing machine improve more, this shows that by the position of projection configuration indentation be effectively.Embodiment 4 two kinds of performances compared with comparative example 1 all increase, and therefore the scheme of known employing embodiment 4 is very useful.
Below with reference to the accompanying drawings embodiment of the present utility model is illustrated, should it is clear that, concrete structure not should limit by these embodiments.Scope of the present utility model also by the scope defined of claim, and comprises all changes in the meaning and scope that to have with the scope of claim and be equal to except the explanation by above-mentioned embodiment.
The structure adopted in above-mentioned each embodiment can be used for other arbitrary embodiments.The concrete structure at each position is not limited only to above-mentioned embodiment, can carry out various distortion in the scope not departing from the utility model aim.
Claims (7)
1. an air-inflation tyre, is formed with tire sipe at its tread, it is characterized in that,
Described tire sipe has wide cut region from tread position separated by a distance, the tire sipe width in described wide cut region is greater than the tire sipe width of tread, described wide cut region is formed as follows: the groove extended by the depth direction along tire sipe, long dimensional directions along described tire sipe is disposed alternately at the wall of tire sipe both sides
Groove described in each has outstanding raised of tire sipe wall from from this groove bottom land to opposite side, and described projection is multiple in the depth direction arrangement of described tire sipe, and the overhang of described projection is set as the line of centers of the tire sipe width being no more than tread.
2. air-inflation tyre according to claim 1, is characterized in that,
The length of the described projection in the long dimensional directions of tire sipe is less than the length of groove,
When seeing along tire sipe thickness direction, in order to make the described projection of the tire sipe wall being positioned at side not overlap with the described projection of the tire sipe wall being positioned at opposite side, make the position of the tire sipe of two projections in long dimensional directions different.
3. air-inflation tyre according to claim 2, is characterized in that,
Described multiple projection is configured to zigzag, i.e. zig-zag as follows: along tire sipe depth direction from the dark side of shallow side direction, and described projection is different mutually in the position of the long dimensional directions of tire sipe.
4. air-inflation tyre according to claim 1, is characterized in that,
The length of the described projection in the long dimensional directions of tire sipe is identical with the length of described groove,
The overhang of described projection is less than described depth of groove, to make the tire sipe side surface side of described projection not from described groove to opposite side outstanding.
5. air-inflation tyre according to claim 1, is characterized in that,
Be positioned at the described projection of the dark side of described tire sipe depth direction, its overhang is less than the overhang of the described projection being positioned at shallow side.
6. air-inflation tyre according to claim 1, is characterized in that,
Described groove tilts to the long dimensional directions of described tire sipe, and extends to the depth direction of described tire sipe.
7. air-inflation tyre according to claim 1, is characterized in that,
Described groove type becomes to the bending V-shaped of the long dimensional directions of described tire sipe.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013230110A JP6198577B2 (en) | 2013-11-06 | 2013-11-06 | Pneumatic tire |
| JP2013-230110 | 2013-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204149781U true CN204149781U (en) | 2015-02-11 |
Family
ID=52507927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420375827.6U Expired - Fee Related CN204149781U (en) | 2013-11-06 | 2014-07-08 | Air-inflation tyre |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6198577B2 (en) |
| CN (1) | CN204149781U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111511585A (en) * | 2017-12-20 | 2020-08-07 | 米其林企业总公司 | Tire tread with sipes |
| CN111572285A (en) * | 2019-02-15 | 2020-08-25 | 通伊欧轮胎株式会社 | Pneumatic tire |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102082951B1 (en) * | 2018-09-13 | 2020-02-28 | 넥센타이어 주식회사 | Pneumatic tire |
| KR102113315B1 (en) * | 2018-09-13 | 2020-06-02 | 넥센타이어 주식회사 | Pneumatic tire |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5261783B2 (en) * | 2007-09-26 | 2013-08-14 | 東洋ゴム工業株式会社 | Pneumatic tire |
-
2013
- 2013-11-06 JP JP2013230110A patent/JP6198577B2/en active Active
-
2014
- 2014-07-08 CN CN201420375827.6U patent/CN204149781U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111511585A (en) * | 2017-12-20 | 2020-08-07 | 米其林企业总公司 | Tire tread with sipes |
| CN111572285A (en) * | 2019-02-15 | 2020-08-25 | 通伊欧轮胎株式会社 | Pneumatic tire |
| CN111572285B (en) * | 2019-02-15 | 2022-05-17 | 通伊欧轮胎株式会社 | Pneumatic tire |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015089719A (en) | 2015-05-11 |
| JP6198577B2 (en) | 2017-09-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20170708 |