CN108422814A - Pneumatic tire - Google Patents
Pneumatic tire Download PDFInfo
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- CN108422814A CN108422814A CN201810030824.1A CN201810030824A CN108422814A CN 108422814 A CN108422814 A CN 108422814A CN 201810030824 A CN201810030824 A CN 201810030824A CN 108422814 A CN108422814 A CN 108422814A
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- Prior art keywords
- tire
- curved ridges
- ridge
- radius direction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
- B60C13/02—Arrangement of grooves or ribs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
The present invention provides a kind of pneumatic tire that can improve the cloaking effect that protrusion is recessed and the generation for inhibiting crackle.The pneumatic tire (1) has ridge (4) toothed region (3) made of tire is circumferential side by side on the surface (2a) of side of sidewall portion (2).Ridge (4) includes the straight line ridge (8) and curved ridges (9) for not being bent and linearly extending.In curved ridges (9), the middle section (4A) of the ridge (4) of 40% length of the overall length (H1) with the tire radius direction is formed by not having the straight part of bending section (10) (11), and the lateral area (4B) or inside region (4C) in the tire radius direction of the ridge (4) other than middle section (4A) are formed with bending section (10).
Description
Technical field
The present invention relates to a kind of pneumatic tires being provided with toothed region on the surface of side of sidewall portion.
Background technology
A kind of pneumatic tire being formed with toothed region on the surface of side of sidewall portion is proposed in following patent documents 1.Toothed region
Along tire circumferential direction and to show the ridges of multiple ridge shapes.In addition, proposing a kind of curved ridges in patent document 1.Curved ridges include：
When the main visual observation of side of sidewall portion, relative to the inclined rake in tire radius direction；And it is linear along tire radius direction
The straight part that shape extends.Such curved ridges assign side of sidewall portion complicated decorative pattern, for example, be difficult to notice with
The lap joints part of casingply is bad order (hereinafter referred to as " protrusion ", " recess " of the concaveconvex shape of reason.)
Screening effect.
However, above-mentioned curved ridges strain because of squeegee action when driving and are easy to concentrate on bending section.In addition, in general,
Vibration when ridge is there are because of tire running, and the central portion of the length direction of ridge becomes the antinode of vibration and is easy to the width in ridge
Degree vibrates on direction, and strain is easy to concentrate on the trend of the central portion.Therefore, the middle section of ridge is provided with bending section
In the case of, there are being easy to generate larger strain herein, and then it is easy to crack this problem.
Existing technical literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2015-033983 bulletins
Invention content
Problems to be solved by the invention
The present invention is to complete in view of the above problems, and therefore, project is, provides a kind of raising protrusion, recess
Screening effect and inhibit using ridge as the pneumatic tire of the generation of the crackle of starting point.
Mode for solving project
The present invention is a kind of pneumatic tire, and the ridge extended along tire radius direction is formed with along wheel on the surface of side of sidewall portion
Toothed region made of tire is circumferentially arranged side by side, wherein the ridge includes straight line ridge and curved ridges, and the straight line ridge is in the side of sidewall portion
It when main visual observation, is not bent and linearly extends, the curved ridges extend in a manner of with bending section, in the curved ridges
In, the middle section of the ridge of the length of the overall length 40% with the tire radius direction is by without the linear of the bending section
Portion is formed, and the lateral area or inside region in the tire radius direction of the ridge other than the middle section are formed with described
Bending section.
Pneumatic tire according to the present invention is preferably, the straight line ridge in the main visual observation of the side of sidewall portion, along
Tire radius direction extend, the curved ridges in the main visual observation of the side of sidewall portion, including：Extend along tire radius direction
The straight part and relative to the inclined rake in tire radius direction.
Pneumatic tire according to the present invention is preferably that the toothed region includes at least：The ridge is between minimum first
Away from the first area for being arranged in tire circumferential direction；And the ridge is arranged in tire week with the second spacing more than first spacing
To second area, the curved ridges are formed in the first area.
Pneumatic tire according to the present invention is preferably that the curved ridges are made only in the first area.
Pneumatic tire according to the present invention is preferably that the curved ridges are included in the outside area in the tire radius direction of ridge
Domain and inside region are formed with the both sides curved ridges of the bending section.
Pneumatic tire according to the present invention is preferably the rake of the lateral area of the both sides curved ridges
It is tilted to the direction opposite with the rake of the inside region.
Pneumatic tire according to the present invention is preferably, and in the main visual observation, the both sides curved ridges include：It is described
First direction side the first both sides curved ridges outstanding of straight part to tire circumferential direction；And the straight part is in tire circumferential direction
On second direction the second both sides curved ridges outstanding to side opposite to the first direction.
Pneumatic tire according to the present invention is preferably that the toothed region includes：First pair, be first liang of lateral bending
Inside and outside of the circumferential lengths of bent ridge and second both sides curved ridges between their ridge towards tire radius direction
It is adjacent in the direction of reduction to form；And second pair, exist with second both sides curved ridges for first both sides curved ridges
Circumferential lengths between their ridge towards the inside in tire radius direction and outside it is increased towards it is upper it is adjacent form, described
Between the respective straight part of first centering, adjacent first both sides curved ridges and second both sides curved ridges
Tire circumferential lengths the straight part of the maximum length of tire circumferential direction less than described second between.
Invention effect
The toothed region of the pneumatic tire of the present invention has straight line ridge and curved ridges.Such straight line ridge and curved ridges pair
Side of sidewall portion assigns complicated decorative pattern, for example, improving raised or sunken screening effect.
In the curved ridges of the present invention, the middle section of the ridge of 40% length of the overall length with the tire radius direction
It is formed by the straight part without the bending section, the outside area in the tire radius direction of the ridge other than middle section
Domain or inside region are formed with the bending section.It is easy to the middle section for the ridge concentrated in strain when driving in tire as a result,
The bending section of curved ridges is not formed, therefore, the generation of the crackle at curved ridges is inhibited.
Therefore, the present invention can play excellent screening effect to protrusion, the recess of side of sidewall portion and can effectively inhibit
The generation of crackle at ridge.
Description of the drawings
Fig. 1 is the tyre equatorial sectional view of the right part for the pneumatic tire for indicating an embodiment of the invention.
Fig. 2 is the front view of the part of the side of sidewall portion of the pneumatic tire of Fig. 1.
Fig. 3 is the line A-A sectional view of Fig. 2.
Fig. 4 is the front view of the side of sidewall portion of Fig. 1.
Fig. 5 is the front view of the side of sidewall portion of Fig. 1.
Symbol description
1：Pneumatic tire；2：Side of sidewall portion；2a：Surface；3：Toothed region；4：Ridge；4A：Middle section；4B：Lateral area；4C：
Inside region；8：Straight line ridge；9：Curved ridges；10：Bending section；11：Straight part.
Specific implementation mode
Hereinafter, being described in detail to a mode of the implementation of the present invention.
Fig. 1 is the pneumatic tire of present embodiment (hereinafter, the case where there are simply referred to as " tires ".) 1 right side it is half of
Tyre equatorial sectional view.Fig. 2 is the front view of the part of the side of sidewall portion 2 of the tire 1 of Fig. 1.Fig. 3 is the line A-A section view of Fig. 2
Figure.In the present embodiment, as preferred mode, the tire 1 of car is shown.But the present invention for example also can certainly
Enough tires for being applied to other classifications such as heavy duty is used, motor is automobile-used.
In Fig. 1, tire is normal state." normal state " is, tire is assembled in regular wheel rim and is filled with
The non-loaded state of regular internal pressure.In the case where not illustrating, the size in each portion of tire etc. is the value of its normal state.
" regular wheel rim " refers to, in the schematism including specification based on tire, each specification is according to each tire
And the wheel rim determined, it is then " Design Rim " if it is TRA to be then if it is JATMA " standard rim ", if it is ETRTO
It is then " Measuring Rim "." regular internal pressure " refers to, in the schematism including specification based on tire, each specification
According to each tire, the air pressure of determination, is then " highest air pressure " if it is JATMA, is then table " TIRE if it is TRA
Maximum value recorded in LOAD LIMITS AT VARIOUS COLD INFLATION PRESSURES ", then if it is ETRTO
It is " INFLATION PRESSURE ".
As shown in Figures 1 to 3, the tire 1 of present embodiment is formed with toothed region in the surface 2a of the side of sidewall portion 2 of at least one party
3.The toothed region 3 is that multiple ridges 4 are along the pattern part that tire is circumferentially formed side by side.In preferred present embodiment, toothed region
3 along tire it is circumferentially continuous be formed as cyclic annular.In other implementations, toothed region 3 can also be in the local landform of side of sidewall portion 2
At in tire circumferential direction.
Toothed region 3 is for example arranged to be leaned on configuration than the first rib 5A in the first rib 5A circumferentially extended along tire
On the inside of tire radius direction and between the second rib 5B of tire circumferentially extending.In preferred present embodiment, in order to
Improve the durability of ridge 4, at least one party of the end in the tire radius direction of ridge 4 and the first rib 5A or the second rib 5B
Connection.
As shown in figure 3, each ridge 4 is formed as ridge shape that is prominent to tire axial outside and extending along tire radius direction.
In present embodiment, ridge 4 configures in a manner of separated by a distance.As a result, in the cross-sectional view of Fig. 3, it is formed between ridge 4,4 flat
Smooth bottom 4h.
In the embodiment of fig. 3, such as cross-sectional shape with trapezoidal shape of each ridge 4 still, such as can also be
Triangular shaped, rectangular shape.In arbitrary embodiment, based on the vulcanization forming product as rubber as pneumatic tire
The characteristics of, it can be understood as the corner of the cross section of ridge 4 is to implement chamfering with small circular arc and formed.
As toothed region 3, the masking of protrusion, recess is played to form the light and shade of the tire circumferential direction generated by reflected light
The height h of effect, ridge 4 is for example preferably 0.1mm or more.In addition, in order to obtain the basic durability of ridge 4, the height h of ridge 4
Preferably 1mm or less.For example it is preferably 0.4mm at the width w for the ridge 4 of ridge 4 partly measured at all according to same viewpoint
~2mm.
As shown in Fig. 2, can also be in toothed region 3, ridge 4 is circumferentially arranged side by side along tire with certain spacing.As further excellent
The toothed region 3 of the present embodiment of choosing, present embodiment includes：Ridge 4 is with the first minimum spacing P1 along tire circumferential array
First area 6；And ridge 4 with the second spacing P2 more than the first spacing P1 along the second area 7 of tire circumferential array.Due to this
The toothed region 3 of sample makes the variation of light and shade further become larger, and therefore, further plays excellent screening effect.In addition, Fig. 2 (with
And aftermentioned Fig. 4~Fig. 5) in, for convenience of description, the center line 4t alongst of ridge 4 is described by single line,
Bottom 4h (as shown in Figure 3) is indicated by the pattern-free part between adjacent line.
It is for example preferably provided with 3~9 or so ridges 4 in each first area 6 and second area 7.In this implementation
In mode, ridge 4 is provided with different radicals in each region 6 and 7.The screening effect of protrusion recess is further carried as a result,
It is high.
In the present embodiment, ridge 4 includes straight line ridge 8 and curved ridges 9.In fig. 2, for ease of understand, curved ridges 9 with
The line thicker than straight line ridge 8 indicates.
Straight line ridge 8 is not bent and linearly extends in the main visual observation of side of sidewall portion 2.On the other hand, curved ridges 9 exist
When the main visual observation of side of sidewall portion 2, there is bending section 10 and extend along tire radius direction.So include straight in mutually different shapes
The toothed region 3 of line ridge 8 and curved ridges 9 assigns side of sidewall portion 2 complicated decorative pattern, raised, recess to further increase
Screening effect.
The middle section 4A in the tire radius direction of curved ridges 9 is formed by the straight part 11 without bending section 10.This
Outside, the lateral area 4B or inside region 4C in the tire radius direction other than middle section 4A of curved ridges 9 are formed with
Bending section 10.Typically, there are tire 1 when driving, the middle section 4A that strain is easy to concentrate on the length of ridge 4 becomes
Gesture.But according to the present embodiment, since bending section 10 is not formed in the middle section 4A in curved ridges 9, curved ridges 9
The generation of the crackle at place is effectively inhibited.
The middle section 4A of ridge 4 is the region that strain is easy to concentrate in tire running as described above, in this specification
In, it is defined as the region with the 40% length L1 of the overall length La in the tire radius direction of ridge 4.In addition, the tire radius of ridge 4
The overall length La in direction itself is not particularly limited, however, it is preferred to for the 15%~30% of section height H (as shown in Figure 1)
Range.
Straight line ridge 8 extends in the main visual observation of side of sidewall portion 2, such as along tire radius direction.On the other hand, curved ridges
9 are configured to：In the main visual observation of side of sidewall portion 2, such as it include the straight part 11 extended along tire radius direction；And phase
For the inclined rake in tire radius direction 12.Though and be not particularly limited, in order to mitigate improve screening effect bending
Stress concentration at portion 10, curved ridges 9 bending angle θ 1 (straight part 11 with and 12 institute of rake that connect of the straight part 11
At acute side angle of reporting to the leadship after accomplishing a task), such as be preferably 4 degree~12 degree or so.
In the present specification, include not only correctly along the embodiment party in tire radius direction " along tire radius direction "
Formula further includes the embodiment of the deviation relative to tire radius direction with the error degree in manufacture.This is allowed for
In view of the vulcanization forming product that pneumatic tire is rubber, and the case where include inevitable foozle.For example, in ridge 4
Heart line 4t and angle, θ 2 across the tire radius direction line n of the centre position 4c in the tire radius direction of ridge 4 be 5 degree with
Under embodiment in, it should be construed to ridge 4 along tire radius direction.
Straight line ridge 8 is for example formed in first area 6 and this two region of second area 7 of toothed region 3.
Curved ridges 9 are for example formed in at least first area 6 of toothed region 3.Ridge 4 is with the of smaller first spacing P1 configurations
One region 6 makes the light and shade of toothed region 3 be easy to show to become apparent from.When being provided with curved ridges 9 in such first area 6, easily
It is further enhanced in the screening effect of the decorative pattern of clearly visual confirmation complexity, and then protrusion, recess.Preferred
In present embodiment, curved ridges 9 are made only in first area 6.In more preferred present embodiment, curved ridges 9 are first
Region 6 is provided with more.In addition, first area 6 further includes more straight line ridges 8.Such first area 6 assigns side of sidewall portion 2
More complicated decorative pattern, to further increase screening effect.
Fig. 4 is the front view of the side of sidewall portion 2 of Fig. 1.As shown in figure 4, curved ridges 9 include both sides curved ridges 14.
Both sides curved ridges 14 are respectively formed with rake 12 in lateral area 4B and inside region 4C.Both sides curved ridges
14 pairs of side of sidewall portion 2 provide more complicated decorative pattern, to help to further increase the screening effect of protrusion, recess.
Both sides curved ridges 14 include in rake 12：It configures including the outer inclined portion 12A of outer side region 4B and configuration
The interior inclined portion 12B of side region 4C.The outer inclined portion 12A of the both sides curved ridges 14 of present embodiment is tilted to the inside
Direction opposite portion 12B tilts.In other implementations, the outer inclined portion 12A of both sides curved ridges 14 can also to
The interior inclined portion 12B is identical towards inclination.
Both sides curved ridges 14 further include the first both sides curved ridges 14A and the second both sides curved ridges 14B.
First both sides curved ridges 14A is configured to, and straight part 11 is to the first direction side (in figure be left side) of tire circumferential direction
It is prominent.On the other hand, the second both sides curved ridges 14B is configured to, and straight part 11 is on tire is circumferential to opposite with first direction
The second direction (being right side in figure) of side is prominent.First both sides curved ridges 14A and the second both sides curved ridges 14B are for example by making
Load dispersing on tire radius direction is in the both sides of tire circumferential direction, so as to mitigate the strain of toothed region 3.
Toothed region 3 can also include first pair 20 and second pair 21.
First pair 20 is, the circumferential direction of the first both sides curved ridges 14A and the second both sides curved ridges 14B between their ridge 4,4
Length Lb towards tire radius direction inside and outside reduction direction on adjacent embodiment.First pair 20 in side wall
When the main visual observation in portion 2, given like convex by the part clipped the first both sides curved ridges 14A and the second both sides curved ridges 14B
The visual effect for going out such solid to be difficult to protrusion, recess etc., and can further increase the aesthetic appearance of tire 1
Energy.
Second pair 21 is, the circumferential direction of the first both sides curved ridges 14A and the second both sides curved ridges 14B between their ridge 4,4
Length Lb is increased towards upper adjacent embodiment towards the inside in tire radius direction and outside.Second pair 21 in side wall
When the main visual observation in portion 2, given like recessed by the part clipped the first both sides curved ridges 14A and the second both sides curved ridges 14B
The visual effect for entering such solid to be difficult to protrusion, recess etc., and can further increase the aesthetic appearance of tire
Energy.
It is preferred that first pair 20 and second pair 21 is circumferentially alternately arranged along tire.
In first pair 20, the first preferably adjacent both sides curved ridges 14A and the second both sides curved ridges 14B's is respective straight
Tire circumferential lengths straight parts 11,11 of the maximum length A of tire circumferential direction between linear portion 11,11 less than second between 21
B.As a result, in the main visual observation of side of sidewall portion 2, compared with second pair 21, first pair 20 is endowed deep impression, therefore, association
Visual effect to sphere is improved, and therefore, appearance property is effectively improved.In order to effectively play above-mentioned work
With first couple 20 of maximum length A is preferably 90% or less second couple 21 of circumferential lengths B.
Toothed region 3 can also further include unilateral curved ridges 16.Unilateral curved ridges 16 are, only in lateral area 4B or inside
Either side in the 4C of region is formed with the curved ridges 9 of rake 12.Compared with both sides curved ridges 15, unilateral curved ridges 16 are in straight
The part that threadiness extends is larger, and therefore, the concentration of strain is inhibited.
In the present embodiment, unilateral curved ridges 16 are formed with rake 12 in inside region 4C, in outer side region 4B shapes
At there is the straight part 11 linearly extended along tire radius direction.The unilateral curved ridges 16 of such present embodiment due to
The smaller inside region 4C of the squeegee action of the tire circumferential direction generated by traveling is provided with rake compared to lateral area 4B
12, therefore, it is possible to be effectively prevented the generation of crackle.
Fig. 5 is the front view of the side of sidewall portion 2 of Fig. 1.As shown in figure 5, multiple curved ridges 9 are continuously formed.In this embodiment party
In formula, the outer inclined portion 12A of each curved ridges 9 is respectively relative to tire radius direction to identical towards inclination.Similarly, respectively
The interior inclined portion 12B of curved ridges 9 is relative to tire radius direction to identical towards inclination.In such an embodiment,
The effect of the generation of screening effect and inhibition crackle is further enhanced.
In the case where multiple curved ridges 9 are continuous or closely configure, the preferred arranging position of the rake 12 of each curved ridges 9
It sets different on tire radius direction.The decorative pattern of further complexity is assigned to side of sidewall portion 2 as a result,.
In the present embodiment, first party of each outer inclined portion 12A of the first both sides curved ridges 14A towards tire circumferential direction
It is deviated to side to tire radius direction outer fix.In addition, in the present embodiment, the first both sides curved ridges 14A's is each interior
Inclined portion 12B is deviated towards the first direction side of tire circumferential direction to tire radius direction inner side.Moreover, in this implementation
In mode, each outer inclined portion 12A of the second both sides curved ridges 14B is towards the second direction side of tire circumferential direction and to tire radius
Direction outer fix offset.In addition, in the present embodiment, each interior inclined portion 12B directions wheel of the second both sides curved ridges 14B
The second direction side of tire circumferential direction and to tire radius direction inner side deviate.Such embodiment can further increase by
The visual effect of first pair of 20 three-dimensional raised design (as shown in Figure 4) generated, to which screening effect is further enhanced.
In the present embodiment, unilateral curved ridges 16A and the first both sides curved ridges 14A is disposed adjacently.The unilateral side is bent
The rake 12C of ridge 16A from the interior inclined portion 12B of the first both sides curved ridges 14A towards the second direction side of tire circumferential direction and
It is deviated to tire radius direction outer fix.In addition, unilateral side curved ridges 16B is disposed adjacently with the second both sides curved ridges 14B.It should
The rake 12D of unilateral curved ridges 16B from the interior inclined portion 12B of the second both sides curved ridges 14B towards tire it is circumferential second
Direction side and to tire radius direction inner side deviate.Such embodiment, which can be further increased, to be generated by first Dui 20
Three-dimensional raised design visual effect, to which screening effect is further enhanced.
It is preferred that the length Lc in the tire radius direction of the rake 12 of curved ridges 9 is less than lateral area 4B and inside region
Length L2, L3 in the tire radius direction of 4C.The rigidity of lateral area 4B or inside region 4C is reduced and is inhibited as a result, because
This, can prevent crackle etc..
Improve the screening effect of crackle prevented and protrusion is recessed well due to that can balance, rake 12
The length Lc in tire radius direction is for example preferably length L2, L3 in the tire radius direction of lateral area 4B or inside region 4C
20%~50%.
It is preferred that in first area 6, curved ridges 9 are for example to form the end of the arbitrary side of the tire circumferential direction of first area 6
Mode be arranged.In this way, forming the straight line of the curved ridges 9 and second area 7 of the end of the side of the tire circumferential direction of first area 6
Ridge 8 is circumferentially upper adjacent in tire, and therefore, the variation of the light and shade of the toothed region 3 of the part further becomes larger.Therefore, it is possible to play
Excellent screening effect.
More than, the particularly preferred present embodiment of the present invention is described in detail, still, the present invention is simultaneously unlimited
Due to embodiment illustrated, and various embodiments can be deformed into implement.
【Embodiment】
Study the pneumatic tire for having formed the side of sidewall portion that the toothed region of the specification based on table 1 is formed in both sides.Also, it is right
It is tested with the relevant appearance property of generation of the screening effect and crackle of the protrusion recess in each tire.In addition to table 1
Substantially the same specification other than recorded specification.The cross sectional shape of ridge is trapezoidal shape.
Tire size：195/65R15
Ridge height：H=0.4mm
The width of ridge：W=1.5mm
The length of ridge：La/H=21.7%
Spacing：P1, P2a, P2b (as shown in Figure 2)=0.24 degree, 0.30 degree, 0.36 degree
The length of straight part：Lc/L2=35%
First couple of maximum length A and the formation radical of curved ridges are identical in each example.
" first and second " expression " the first both sides curved ridges and second liang of " the presence or absence of the both sides curved ridges " of table 1
The case where lateral bend ridge is alternately arranged ", " only first " expression " the case where being provided only with the first both sides curved ridges ".
<Appearance property (screening effect of protrusion recess)>
To each examination after vulcanization for filling tires internal pressure 230kPa.Later, raised caused by the surface by side of sidewall portion
Appearance property caused by the noticeable situation of recess, by being evaluated by the sense evaluation visually implemented.Knot
Fruit is indicated by the way that embodiment 1 to be set as to 5 points of 5 methods.Numerical value is bigger, more being difficult to notice protrusion recess and screening effect
It is excellent.
<Appearance property (generation of crackle)>
Each examination is installed in all wheels of the car of capacity 2000cc for tire, and test driver makes car in drying
The test route of bituminous paving travels 10,000 km.Later, the generation situation of crackle caused by toothed region passes through by visually implementing
Sense evaluation is evaluated.As a result it is indicated so that embodiment 1 to be set as to 5 points of 5 methods.Numerical value is bigger, crackle less and
Appearance property is more excellent.
【Table 1】
It is as shown in the table, has confirmed compared with the tire of comparative example, and the tire of embodiment makes the screening effect that protrusion is recessed
It is improved and the generation of crackle is inhibited, therefore, there is excellent appearance property.
Claims (8)
1. a kind of pneumatic tire, it is circumferentially arranged side by side along tire to be formed with the ridge that extends along tire radius direction on the surface of side of sidewall portion
Made of toothed region, wherein
The ridge includes straight line ridge and curved ridges,
The straight line ridge is not bent and linearly extends in the main visual observation of the side of sidewall portion,
The curved ridges extend in a manner of with bending section,
In the curved ridges, the middle section of the ridge of the length of the overall length 40% with the tire radius direction, by not having
The straight part of the bending section is formed, the tire radius direction of the ridge other than the middle section lateral area or
Inside region is formed with the bending section.
2. pneumatic tire as described in claim 1, wherein
The straight line ridge extends in the main visual observation of the side of sidewall portion along tire radius direction,
The curved ridges in the main visual observation of the side of sidewall portion, including：Extend along tire radius direction described linear
Portion and relative to the inclined rake in tire radius direction.
3. pneumatic tire as claimed in claim 1 or 2, wherein
The toothed region includes at least：The ridge is arranged in the first area of tire circumferential direction with the first minimum spacing；And institute
The second area that ridge is arranged in tire circumferential direction with the second spacing more than first spacing is stated,
The curved ridges are formed in the first area.
4. pneumatic tire as claimed in claim 3, wherein
The curved ridges are made only in the first area.
5. the pneumatic tire as described in any one of claim 2 to 4, wherein
The curved ridges are included in the lateral area in the tire radius direction of ridge and inside region is formed with the bending section
Both sides curved ridges.
6. pneumatic tire as claimed in claim 5, wherein
The rake of the lateral area of the both sides curved ridges, to opposite with the rake of the inside region
Direction tilt.
7. pneumatic tire as claimed in claim 6, wherein
In the main visual observation, the both sides curved ridges include：First direction pleurapophysis of the straight part to tire circumferential direction
The the first both sides curved ridges gone out；And the straight part on tire is circumferential to the second party of side opposite to the first direction
To the second both sides outstanding curved ridges.
8. pneumatic tire as claimed in claim 7, wherein
The toothed region includes：First pair is first both sides curved ridges and second both sides curved ridges at them
Circumferential lengths between ridge towards tire radius direction inside and outside reduction direction on adjacent form；And second pair,
It is the circumferential lengths of first both sides curved ridges and second both sides curved ridges between their ridge towards tire radius
The inside and outside in direction it is increased towards it is upper it is adjacent form,
In described first pair, adjacent first both sides curved ridges are respective described straight with second both sides curved ridges
Tire circumferential lengths the straight part of the maximum length of tire circumferential direction between linear portion less than described second between.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017016907A JP6880788B2 (en) | 2017-02-01 | 2017-02-01 | Pneumatic tires |
| JP2017-016907 | 2017-08-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108422814A true CN108422814A (en) | 2018-08-21 |
| CN108422814B CN108422814B (en) | 2022-06-07 |
Family
ID=63110105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810030824.1A Active CN108422814B (en) | 2017-02-01 | 2018-01-12 | Pneumatic tire |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6880788B2 (en) |
| CN (1) | CN108422814B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114206635A (en) * | 2019-08-05 | 2022-03-18 | 横滨橡胶株式会社 | Pneumatic tire |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7129380B2 (en) * | 2019-06-03 | 2022-09-01 | 株式会社ブリヂストン | tire |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08318717A (en) * | 1995-05-26 | 1996-12-03 | Bridgestone Corp | Pneumatic tire provided with decoration body consisting of multiple ridge |
| CN103660806A (en) * | 2012-09-21 | 2014-03-26 | 住友橡胶工业株式会社 | Pneumatic tire |
| CN104339988A (en) * | 2013-08-09 | 2015-02-11 | 住友橡胶工业株式会社 | Pneumatic tire |
| CN103568739B (en) * | 2012-08-10 | 2016-12-28 | 住友橡胶工业株式会社 | Pneumatic tire |
-
2017
- 2017-02-01 JP JP2017016907A patent/JP6880788B2/en active Active
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2018
- 2018-01-12 CN CN201810030824.1A patent/CN108422814B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08318717A (en) * | 1995-05-26 | 1996-12-03 | Bridgestone Corp | Pneumatic tire provided with decoration body consisting of multiple ridge |
| CN103568739B (en) * | 2012-08-10 | 2016-12-28 | 住友橡胶工业株式会社 | Pneumatic tire |
| CN103660806A (en) * | 2012-09-21 | 2014-03-26 | 住友橡胶工业株式会社 | Pneumatic tire |
| CN104339988A (en) * | 2013-08-09 | 2015-02-11 | 住友橡胶工业株式会社 | Pneumatic tire |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114206635A (en) * | 2019-08-05 | 2022-03-18 | 横滨橡胶株式会社 | Pneumatic tire |
| CN114206635B (en) * | 2019-08-05 | 2024-01-02 | 横滨橡胶株式会社 | Pneumatic tire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108422814B (en) | 2022-06-07 |
| JP2018122751A (en) | 2018-08-09 |
| JP6880788B2 (en) | 2021-06-02 |
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