CN107074041B - Pneumatic tire - Google Patents
Pneumatic tire Download PDFInfo
- Publication number
- CN107074041B CN107074041B CN201580050016.6A CN201580050016A CN107074041B CN 107074041 B CN107074041 B CN 107074041B CN 201580050016 A CN201580050016 A CN 201580050016A CN 107074041 B CN107074041 B CN 107074041B
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- Prior art keywords
- tire
- belt
- even surface
- zone
- recess portion
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 17
- 210000003754 fetus Anatomy 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 description 16
- 239000011324 bead Substances 0.000 description 13
- 239000000446 fuel Substances 0.000 description 13
- 238000004073 vulcanization Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000002401 inhibitory effect Effects 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
- B60C13/001—Decorating, marking or the like
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
In the region of the tire maximum width position comprising the pneumatic tire of the sidewall surfaces of pneumatic tire, equipped with the decorative zones with sidewall pattern.The decorative zones include: convex ridge region and multiple belt-like zones in band-like extension equipped with the multiple convex ridges extended in one direction.The belt-like zone is each provided with: around by the first band-like even surface of convex ridge region encirclement and by first even surface encirclement and the first recess portion of multiple pit shapes from first even surface recess.First even surface is extended in a manner of being radially orientated tire peripheral, oblique from tire.Each comfortable tire of the belt-like zone circumferentially dispersedly configures, and the first recess portion of the pit shape is configured in column in a manner of along the belt-like zone being in the direction of band-like extension.
Description
Technical field
The present invention relates to pneumatic tires, more particularly, it relates to the pattern of the sidewall surfaces of pneumatic tire.
Background technique
In recent years, in order to improve the fuel efficiency for the vehicle for being equipped with pneumatic tire and the maximum speed of vehicle, it is desirable that drop
The rolling resistance of low pneumatic tire.In order to reduce the rolling resistance of pneumatic tire, structure, the tyre surface of change pneumatic tire are proposed
The various modes such as Pattern Design.
In addition, in order to improve the maximum speed of the fuel efficiency of vehicle and vehicle, it was also proposed that reduce filling in rotation
The mode of the air drag of air filled tyre.The air drag of pneumatic tire by be set to fetus face surface tread contour bumps,
Set on the concave-convex influence of the badge and decorative pattern of sidewall surfaces.
For example, as it is known that following pneumatic tire: pneumatic tire sidewall surfaces comprising tire maximum width position
First area is equipped with the recess portion of multiple pits (dimple, dimple) shape, around each recess portion, to cover each institute
The mode for stating recess portion, the valley equipped with the multiple threadiness extended in one direction and implement zigzag (serration) processing (specially
Sharp document 1).
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2012-106583 bulletin
Summary of the invention
Problems to be solved by the invention
The recess portion of multiple pit shapes is being set in the above-mentioned pneumatic tire of sidewall surfaces, air drag is being can reduce, mentions
High fuel efficiency, but on the contrary, since above-mentioned recess portion is equably set to the decorative zones of sidewall surfaces, the total pole of recess portion
It is more.Correspondingly, it needs to be also provided with a large amount of protrusion in tire vulcanization mold.Accordingly, there exist following problems: tyre vulcanization
It is improved with the processing cost of mold, and then the manufacturing cost of tire can also improve.
Therefore, the object of the present invention is to provide one kind can be by inhibiting being processed into for tire vulcanization mold original
Inhibit Tire production cost, and is effectively reduced the pneumatic tire of air drag when tire rolls.
A technical solution to solve project
This technology includes the pneumatic tire of following various modes.
[mode 1]
A kind of pneumatic tire, which is characterized in that
Comprising fetus face and sidewall portion,
In the region of the tire maximum width position comprising the pneumatic tire of the sidewall surfaces of the sidewall portion, it is equipped with
Decorative zones with sidewall pattern,
The decorative zones include:
Convex ridge region, equipped with the multiple convex ridges extended in one direction；With
Multiple belt-like zones, have: the first band-like even surface, are around surrounded and are not had convex by the convex ridge region
Ridge；And the first recess portion of multiple pit shapes, it is surrounded by first even surface and is set as being recessed from first even surface,
The multiple belt-like zone is constituted are as follows: first even surface is from tire radial direction inner side towards tire radial outside in sidewall surfaces
Upper is in the band-like extension, also, when first even surface extends towards the tire radial outside, with from tire radially towards
Extend to the mode of tire peripheral, oblique,
The belt-like zone is circumferentially dispersedly configured in the sidewall surfaces in tire,
First recess portion is configured in column in a manner of along the belt-like zone being in the direction of the band-like extension.
[mode 2]
According to pneumatic tire described in mode 1, wherein circumferentially adjacent to each other in tire in the multiple belt-like zone
The group of multiple belt-like zones tire circumferentially dispersedly configure it is multiple, it is described groups of band-like compared with other belt-like zones
Region is set to position close to each other.
[mode 3]
According to pneumatic tire described in mode 2, wherein in described group, be contained in tire circumferentially adjacent to each other two
The region of occupying of the tire circumferential direction of the column of first recess portion in a neighbouring strip region partly overlaps in tire circumference.
[mode 4]
The pneumatic tire according to any one of mode 1~3, wherein the tire radial direction inner side of first even surface
The belt-like zone end and first even surface tire radial outside the belt-like zone end extremely
A few side has the top pattern circumferentially to come to a point towards tire.
[mode 5]
The pneumatic tire according to any one of mode 1~4, wherein the multiple belt-like zone relative to tire
Peripheral, oblique towards same to each other, the multiple belt-like zone setting are as follows: around tire rotary shaft be in swirl shape.
[mode 6]
The pneumatic tire according to any one of mode 1~5, wherein from tire radial direction inner side towards outside
Mode, it is described convex when observing the extending direction of extending direction and first even surface of the convex ridge in the convex ridge region
The extending direction of the extending direction of ridge and first even surface is towards the mutually different direction of tire circumferential direction.
[mode 7]
The pneumatic tire according to any one of mode 1~6, wherein
In the sidewall surfaces, in addition to being additionally provided with the badge display area for showing badge equipped with the decorative zones,
The badge display area has: the second even surface, surrounds badge and does not have convex ridge；The second of multiple pit shapes
Recess portion is surrounded and be arranged in a manner of from second even surface recess by second even surface,
Multiple second recess portions configure in column, the column setting of second recess portion are as follows: take turns from tire radial direction inner side direction
Tire radial outside extends, and is radially orientated tire peripheral, oblique from tire.
[mode 8]
Pneumatic tire according to scheme 7, wherein
The multiple belt-like zone relative to tire peripheral, oblique towards same to each other, the multiple belt-like zone sets
It is set to: being in swirl shape around tire rotary shaft,
Second recess portion is arranged in rows in the swirl direction of the swirl shape.
[mode 9]
The pneumatic tire according to any one of mode 1~8, wherein first even surface is than the convex ridge region
Convex ridge at the top of it is prominent to the outside of sidewall surfaces.
The effect of invention
According to above-mentioned pneumatic tire, the original system for inhibiting tire can either be processed by inhibition tire vulcanization mold
This is caused, and air drag when tire rolls can be effectively reduced.
Detailed description of the invention
Fig. 1 is the profile cross section figure of an example of the pneumatic tire of present embodiment.
Fig. 2 is the figure for indicating an example on the surface of sidewall portion of present embodiment.
Fig. 3 (a) be by a part of amplified enlarged drawing of the pattern (decorative pattern) of the sidewall surfaces of tire shown in Fig. 2,
Fig. 3 (b) is the sectional view along X-X line shown in Fig. 3 (a).
Fig. 4 is the figure that the air stream around the sidewall surfaces to the tire of present embodiment is illustrated.
Fig. 5 is the figure that air drag caused by pattern to the sidewall surfaces of the tire of present embodiment is illustrated.
Fig. 6 is the figure for indicating an example of the different configuration modes of belt-like zone of the tire for present embodiment.
Specific embodiment
Hereinafter, the pneumatic tire of present embodiment (after, referred to as tire) is described in detail.
The pneumatic tire of present embodiment described below can also apply to small for example applied to passenger car tire
Type card tire for vehicles or bus/card tire for vehicles.The pneumatic tire of present embodiment described below is sedan-chair vehicle wheel
Tire.
In the following description, tire width direction is the direction parallel with the rotary shaft of pneumatic tire.Tyre width side
It is the side in tire width direction, far from the tire centerline CL for indicating equatorial plane outward.In addition, tyre width
It is in tire width direction, close to the side of tire centerline CL on the inside of direction.Tire is circumferentially pneumatic tire with inflated wheel
The rotary shaft of tire is the direction of the center rotation of rotation.Tire is radially the direction with the rotating shaft direct cross of pneumatic tire.Tire
Radial outside refers to the side far from the rotary shaft.In addition, tire radial direction inner side refers to close to the side of the rotary shaft.
(tire construction)
Fig. 1 shows the profile cross section figures of an example of the tire 10 of present embodiment.Tire 10 has: with tread contour
Fetus face 10T, a pair of bead portion 10B, set on fetus face 10T two sides and be connected to a pair of bead portion 10B and fetus face 10T
A pair of sidewalls portion 10S.
There is tire 10 casing ply 12, belt 14, bead core 16 to be used as frame member, in the week of these frame members
It encloses, mainly includes tread-rubber component 18, sidewall rubber component 20, bead-core rubber component 22, rim cushion rubber component
24, liner rubber component 26.
Casing ply 12 by wound between a pair of circular bead core 16 and in a ring, with the organic fibre of rubber coated
The cord tire of dimension is constituted.Cord tire winds around bead core 16 and extends to tire radial outside.In the tire of casing ply 12
Radial outside, equipped with the belt 14 constituted by two with beam material 14a, 14b.Belt 14 is by rubber coated in steel cord
Component, the steel cord is configured that relative to angle as defined in tire peripheral, oblique, such as 20~30 degree, the band with upper layer
Beam material 14b is compared, and the width of the tire width direction with beam material 14a of lower layer is long.Two layers of steel with beam material 14a, 14b
The inclined direction of cord mutually opposite direction each other.Therefore, band beam material 14a, 14b becomes cross-bedding, inhibits the air by being filled
The expansion of casing ply 12 caused by pressure.
It is equipped with tread-rubber component 18 in the tire radial outside of belt 14, is connected at the both ends of tread-rubber component 18
It is connected to sidewall rubber component 20, forms sidewall portion 10S.Rim cushion is equipped at the tire radial direction inner side end of sidewall rubber component 20
Rubber component 24 is contacted with the wheel rim for being equipped with tire 10.In the tire radial outside of bead core 16, to be clipped in around bead core 16
Mode between the part of casing ply 12 before winding and the winding part of the casing ply 12 after the winding of bead core 16, if
There is bead-core rubber component 22.In the tire towards tire cavity region that is being surrounded by tire 10 and wheel rim and filling air
10 inner surface is equipped with liner rubber component 26.
In addition to this, tire 10, which has, covers belt 14 from the tire radial outside of belt 14 and uses rubber coated
Two layers of banding coating 30 of organic fiber or steel cord.In addition it is also possible in the body piles 12 after the winding of bead core 16
Has bead reinforcement between bead-core rubber component 22.The tire construction of present embodiment is as described above, but tire construction
It is not particularly limited, well known tire construction can be applied.In addition, the tyre surface of the fetus face 10T of the tire 10 of present embodiment
Decorative pattern is not particularly limited.
(decorative pattern of side wall)
Fig. 2 is the figure for indicating an example of sidewall surfaces of sidewall portion 10S.Fig. 3 (a) is by the side wall of tire shown in Fig. 2
A part of amplified enlarged drawing of the pattern (decorative pattern) of the sidewall surfaces of portion 10S, Fig. 3 (b) are along X-X shown in Fig. 3 (a)
The sectional view of line.
It is equipped in the sidewall surfaces of the tire of present embodiment: information display area 32, badge display area 33, ornamental area
Domain 34.The combination badge of " Y " character and " YOKOHAMA " character in Fig. 2 is registered trademark.
The information such as tire size, the specification of tire 10 are indicated in information display area 32.It is shown in badge display area 33
There are the badges such as brand name or the tiremaker of tire 10.
Decorative zones 34 are set to the region of the tire maximum width position comprising tire 10.It is equipped in decorative zones 34 following
Shown in pattern, become the sidewall pattern of sidewall portion 10S.Decorative zones 34 have: convex ridge region 36 and belt-like zone 38.
Convex ridge region 36 is provided with the region of the multiple convex ridge 36a extended in one direction.For example, the vulcanization to tire 10
Zigzag processing is carried out with the inner surface of mold, the recessed of the form of ridges in convex ridge region 36 is thus formed into the inner surface of mold
Convex, which is transferred to the sidewall surfaces of tire in vulcanization, and convex ridge 36a is consequently formed.(in Fig. 2, convex ridge region 36
The line shade of convex ridge 36a is excessively black, can not identify)
Belt-like zone 38 is arranged multiple in sidewall surfaces.Belt-like zone 38 has: around by convex ridge region 36 surround and not
Band-like the first even surface 39 and the first recess portion 40 with convex ridge.The rounded pit shape setting of first recess portion 40 is multiple.The
The circular shape of one recess portion 40 is circular or ellipse.As shown in Fig. 3 (b), the first recess portion 40 setting are as follows: smooth by first
Face 39 surrounds, and is recessed from the first even surface 39 towards tire width direction inside (tire cavity region side).Such as Fig. 2 and figure
Shown in 3 (a), the first even surface 39 from tire radial direction inner side towards tire radial outside be in band-like extension in sidewall surfaces, and
And when the first even surface 39 extends towards tire radial outside, prolonged in a manner of being radially orientated tire peripheral, oblique from tire
It stretches.
Belt-like zone 38 is circumferentially dispersedly configured at sidewall surfaces in tire.First recess portion 40 of pit shape in column, the column
Extend along belt-like zone 38 in the direction of band-like extension.In the present embodiment, the column of the first recess portion 40 are preferably a column, but
A column are not limited to, two column or more are also possible to.
It is compared with the past according to the pattern of this decorative zones 34, it, also can be high even if the first recess portion 40 of pit shape is few
Effect ground reduces the air drag when rolling of tire.Therefore, it is able to suppress the processing cost of the vulcanization mold of tire, and then is pressed down
The manufacturing cost of ratch tire, and can efficiently inhibit the air drag when rolling of tire.
Fig. 4 is the figure that the air stream around the sidewall surfaces to tire 10 is illustrated.
When making wheel rim be assembled in the tire 10 of wheel rim R in arrow F direction running, in the part for being slightly away from sidewall surfaces
There are speed difference between air stream near air stream and sidewall surfaces, the speed difference with the increase of the travel speed of tire and
Increase, when being more than certain limit, the air stream A of sidewall surfaces becomes vortex shape and removes.The peeling can significantly increase
The air drag of side wall.In order to make the peeling be difficult to generate, i.e., in order to make peeling be located at downstream side, it is recessed first
The column in portion 40 towards tire radial outside extend when, the column along belt-like zone 38 extending direction, the belt-like zone 38 with from
The mode that tire is radially orientated tire peripheral, oblique extends.Therefore, in the tire of moving in rotation, with equably be set to side wall table
The recess portion of the pit shape of the decorative zones in face is same, plays following effect: making peeling relative to direction of travel as much as possible
Positioned at downstream side.Therefore, the generation position of vortex flow can be made to be located at downstream side, reduce air drag.
On the other hand, due to being set in belt-like zone 38, the number of the first recess portion 40 of present embodiment is than previous
Sum like that equably set on the recess portion of the pit shape of decorative zones is few.Therefore, it is able to suppress tire sulphur corresponding with recess portion
Processing cost needed for changing the production with the protrusion of mold.Thereby, it is possible to inhibit the manufacturing cost of tire.Therefore, this embodiment party
The tire of formula is able to suppress the manufacturing cost of tire, and is effectively reduced air drag when tire rolls.
The belt-like zone 38 of the tire 10 of present embodiment, which can separate fixed distance and be uniformly dispersed, is configured at tire
On circumference, but preferably mode below.That is, for multiple belt-like zones, it is circumferentially adjacent to each other multiple band-like in tire
The group in region circumferentially dispersedly configures multiple in tire.At this point, groups of belt-like zone is set to compared with other belt-like zones
Position close to each other.In this approach, with the group in neighbouring strip region accordingly the first recess portion 40 multiple column in groups, therefore
The group that constitutes is arranged as described above, sky around the sidewall surfaces that can efficiently make the movement with tire and generate by multiple
Peeling in air-flow is located at downstream side.
In the groups of situation of belt-like zone 38, it is preferred that in this set, be contained in circumferentially adjacent to each other in tire
The region of occupying of the tire circumferential direction of the column of first recess portion 40 in two neighbouring strip regions partly overlaps in tire circumference.In band
In the group in shape region 38, the first recess portion 40 is uninterrupted in tire circumference, therefore the sky when tire rolls, around sidewall surfaces
Air-flow is contacted with the column of the first recess portion 40 of belt-like zone 38, and thereby, it is possible to move peeling downstream.
Preferably: the end of the belt-like zone 38 of the tire radial direction inner side of the first even surface 39 in present embodiment
The tire radial outside of (end of the inclined direction of tire peripheral, oblique is radially orientated from tire) and the first even surface 39
At least one party of the end (end of the inclined direction of tire peripheral, oblique is radially orientated from tire) of belt-like zone 38 has court
The top pattern circumferentially to come to a point to tire.In this case, as shown in figure 5, the rolling (R of Fig. 5 for passing through tire1The rotation in direction
Turn), when observing on the basis of by the first even surface 39, air stream flows in a manner of shown in straight arrows.Therefore, by by
The end of one even surface 39 is set as the top pattern circumferentially to come to a point towards tire, can rectify, can drop to the air stream
Low-drag.In particular, by by the end of the tire radial direction inner side of the first even surface 39 and the belt-like zone 38 in outside
It is set as the top pattern circumferentially to come to a point towards tire, even if the installation of tire towards being set as reverse, is carried out R shown in fig. 52
In the case where the rotation in direction, air stream can also be rectified, can reduce air drag.In addition, Fig. 5 is to this implementation
The figure that air drag caused by the pattern of the sidewall surfaces of the tire of mode is illustrated, " Y " character in Fig. 5 and
The combination badge of " YOKOHAMA " character is registered trademark.
The top pattern circumferentially to come to a point to tire is other than top pattern at an acute angle, also comprising with radius of curvature
2.0mm or less makes the angle of top as the pattern of fillet.
The respective inclination direction that tire peripheral, oblique is radially orientated from tire of multiple belt-like zones 38 of present embodiment
Identical, multiple belt-like zones 38 are by around tire rotary shaft, in being arranged in a manner of swirl shape, this point is from can be to air stream
It is preferred from the perspective of being rectified.But it is generated as long as can make with the movement of tire 10 as shown in Figure 4
The peeling in air stream around sidewall surfaces downstream moves, as shown in fig. 6, belt-like zone 38 is relative to tire week
It can also be different to inclined direction.Fig. 6 is the figure for indicating an example of different configuration modes of belt-like zone 38.Though not in Fig. 6
In show, but it is same in this case, it is shown in fig. 6 from the viewpoint of moving peeling downstream
The tire circumferential direction for the first recess portion 40 that the belt-like zone 38 of Ha font is included occupies region part preferably in tire circumference
Overlapping.
In addition, from the viewpoint of highlighting the first even surface 39, preferably: from tire radial direction inner side towards outside
Mode observe the convex ridge 36a in convex ridge region 36 extending direction and the first even surface 39 extending direction when, the extension of convex ridge 36a
The extending direction of direction and the first even surface 39 is towards the circumferential mutually different direction of tire (towards clockwise direction and inverse time
Needle direction).It is highlighted by the first even surface 39 in decorative zones 34, to observe the people of sidewall surfaces along the first even surface 39
The mobile sight of inclined direction, the badge in badge display area 33 can be easily identified.In addition, the first even surface 39 and by
The swirl shape of the column for the first recess portion 40 that first even surface 39 surrounds seems obvious, therefore is easily recognizable as to air stream
Rectified and realized the reduced tire of air drag.
As shown in Fig. 2, in the present embodiment, it is preferable that badge display area 33 has: surrounding badge and do not have convex ridge
The second even surface 42, surrounded and multiple pit shapes for being arranged in a manner of being recessed from the second even surface 42 by the second even surface 42
The second recess portion 44, multiple second recess portions 44 configure in column, the column setting of the second recess portion 44 are as follows: from tire radial direction inner side towards taking turns
Tire radial outside extends, and is radially orientated tire peripheral, oblique from tire.Specifically, the direction wheel of the column of the second recess portion 44
Tire circumferential direction preferably with the column of the first recess portion 40 towards tire it is circumferential towards identical.That is, the second recess portion 44 is preferably: In
The swirl direction of the belt-like zone 38 and the first recess portion 40 that extend in swirl shape is arranged in rows.In badge display area 33,
In order to easily visual confirmation badge, the part of badge is set to the second even surface 42.But the second even surface 42 is easy to produce
The peeling of raw above-mentioned air stream.It is therefore preferable that configuring the second recess portion 44 of pit shape in column in badge display area 33.
At this point, the column of the second recess portion 44 extend from tire radial direction inner side towards tire radial outside, and tire is radially orientated from tire
Peripheral, oblique, so that range that air stream is contacted with the column of the second recess portion 44 is elongated.
In addition, as shown in Fig. 3 (b), from the viewpoint for the resistance for inhibiting the air stream being easy to produce by the bumps of convex ridge 36a
Set out, the first even surface 39 of present embodiment preferably than convex ridge region 36 convex ridge 36a top to the outside of sidewall surfaces
It is prominent.Play the role of the first recess portion 40 being arranged in a manner of being surrounded by the first even surface 39 as a result, can efficiently make
It downstream moves the generation position of the peeling of air stream.
For tire 10, both decorative zones can be respectively set in the sidewall surfaces of the two sides of tire width direction
34, decorative zones 34 only can also be set in unilateral sidewall surfaces.In addition, decorative zones 34 are arranged in the sidewall surfaces in two sides
In the case where, sidewall surfaces of the direction of belt-like zone 38 circumferentially extended to tire preferably in two sides are that identical tire is circumferential
Direction.Furthermore, it is possible to be, when tire 10 is installed on the wheel such as revolver of a side side of vehicle, belt-like zone 38 to
The direction of tire circumferentially extending is with the direction of rotation that rotates to the direction of advance of vehicle towards corresponding swirl shape, another
Aspect, when tire 10 is installed on the wheel such as right wheel of another party side of vehicle, belt-like zone 38 is circumferentially extended to tire
Direction be with the direction of rotation that is rotated to the direction of retreat of vehicle towards corresponding swirl shape.Even if in this case,
In the belt-like zone 38 of the tire 10 of two sides, by the effect of the first recess portion 40, the peeling of air stream also can be downstream
Side is mobile.
The first recess portion 40 and the second recess portion 44 of tire 10 are the opening shape of round, but are not limited to round
Opening shape, be also possible to polygonal shape.In addition, the first recess portion 40 and the second recess portion 44 are not limited to the depth in recess portion
Degree direction is arc-shaped the shape of shape recess, is also possible to the shape of rectangular shaped recess.
(embodiment, comparative example, previous example)
In order to confirm the effect of present embodiment, various patterns are made to sidewall surfaces, investigate tire manufacturing cost and
Air drag.Tire size uses 195/65R15 91H, and the air pressure of front and back wheel is set as 240kPa, uses the wheel of 15 × 6J
Rim.
Air drag is carried out by being installed on vehicle (miniature van-type vehicle) and investigating fuel efficiency.Specifically, with
Speed per hour 100km/ hours 500 circles of circuit traveling in overall length 2km calculate the combustion of every predetermined distance according to fuel consumption
Expect efficiency.Fuel efficiency is higher, and air drag is smaller.
On the other hand, manufacturing cost is used to carry out by the production costs of estimation mold.Specifically, the first recess portion 40 and
The opening of second recess portion 44 is set as round, and diameter is set as 3.6mm, and depth is set as 0.7mm.The manufacturing cost of tire is by phase
When the influence of the cost of manufacture in the protrusion of the first recess portion 40 and the inner surface of the mold of the second recess portion 44.
Made tire is previous example, comparative example, this is ten a kind of for Examples 1 to 9.
Previous example has: the side wall without the first recess portion 40 and the second recess portion 44 in sidewall surfaces shown in Fig. 2
Surface.
Comparative example has the recess portion of uniform pit shape in the entire decorative zones of sidewall surfaces.
Examples 1 to 8 sidewall surfaces shown in Fig. 2 have the first recess portion 40, but do not have the second recess portion 44.Embodiment
9 sidewall surfaces shown in Fig. 2 have the first recess portion 40 and the second recess portion 44.
" the inclined direction " in " the presence or absence of oblique arrangement of the first recess portion and inclined direction " in table 1, table 2 indicates
Be with tire march forward direction advance when the identical tire circumferential direction in direction of rotation on direction or opposite direction.In table
" being same direction with direction of rotation " refers to, when the column of the first recess portion are advanced inwardly from tire radial outside, about tire
Circumferential both direction, the direction of rotation when extending direction of the column of the first recess portion is advanced with direction of marching forward, in tire circumferential direction
On direction it is consistent." being opposite direction with direction of rotation " refers to, advances inwardly in the column of the first recess portion from tire radial outside
When, about the both direction of tire circumferential direction, the extending directions of the column of the first recess portion and tire march forward rotation of direction when advancing
Direction is opposite direction.In addition, " helical form " in embodiment is it is meant that belt-like zone 38 and first is recessed as shown in Figure 2
The orientation in portion 40 is configured in swirl shape, and " Ha font " means in shape configuration shown in fig. 6.
Table 1, table 2 " whether there is or not the groups of belt-like zone " in, " having " mean two adjacent belt-like zones 38 in groups and
The group is distributed multiple modes in tire circumference, and "None" means that belt-like zone 38 is not being taken turns in groups, singly
The mode being equably distributed on tire circumference.
For " whether there is or not the top patterns of belt-like zone to come to a point " of table 1, table 2, in the case where " having ", it is meant that
Top is 10 degree of acute angle, in the case where "None", it is meant that is rounded top with radius of curvature 3.5mm.
In following table 1, table 2, previous example is set as to 100 exponent pair fuel efficiency and manufacturing cost carry out table
Show.The index of fuel efficiency is higher, it is meant that and fuel efficiency more improves (quantitative change of fuel needed for the fixed distance of traveling is few),
Air drag is smaller.The index of manufacturing cost is lower, it is meant that manufacturing cost becomes higher.
[table 1]
[table 2]
According to above-mentioned table 1, about fuel efficiency, compared with comparative example, Examples 1 to 8 it is substantially same (traveling it is fixed away from
Amount from required fuel is substantially same), on the other hand, it can significantly inhibit manufacturing cost.1 of fuel efficiency or 2
Percentage point decline be minimum, be the level that can allow for.
In addition, compared with previous example, the manufacturing cost in Examples 1 to 9 rises (index becomes smaller), but its ascensional range with
Comparative example is compared to minimum.
More than, pneumatic tire of the invention is described in detail, but present invention is not limited to the embodiments described above
And embodiment can also carry out various improvement, change without departing from the scope of the subject in the invention certainly.
Label declaration
10 pneumatic tires
10T fetus face
10B bead part
10S sidewall portion
12 casing plies
14 belts
16 bead cores
18 tread-rubber components
20 sidewall rubber components
22 bead-core rubber components
24 rim cushion rubber components
26 liner rubber components
28 bead reinforcements
30 banding coatings
32 information display areas
33 badge display areas
34 decorative zones
36 convex ridge regions
38 belt-like zones
39 first even surfaces
40 first recess portions
42 second even surfaces
44 second recess portions
Claims (9)
1. a kind of pneumatic tire, which is characterized in that
Comprising fetus face and sidewall portion,
In the region of the tire maximum width position comprising the pneumatic tire of the sidewall surfaces of the sidewall portion, equipped with having
The decorative zones of sidewall pattern,
The decorative zones include:
Convex ridge region, equipped with the multiple convex ridges extended in one direction；With
Multiple belt-like zones, have: the first band-like even surface, are around surrounded by the convex ridge region and do not have convex ridge；With
And the first recess portion of multiple pit shapes, it is surrounded by first even surface and is set as being recessed from first even surface, it is described
Multiple belt-like zones are constituted are as follows: first even surface is in sidewall surfaces from tire radial direction inner side towards tire radial outside
The band-like extension, also, when first even surface extends towards the tire radial outside, to be radially orientated wheel from tire
The mode of tire peripheral, oblique extends,
The belt-like zone is circumferentially dispersedly configured in the sidewall surfaces in tire,
First recess portion is configured in column in a manner of along the belt-like zone being in the direction of the band-like extension.
2. pneumatic tire according to claim 1, wherein
The group in tire multiple belt-like zones circumferentially adjacent to each other in the multiple belt-like zone is circumferential dispersedly in tire
Configure multiple, compared with other belt-like zones, described group of belt-like zone is set to position close to each other.
3. pneumatic tire according to claim 2, wherein
In described group, it is contained in the tire in the column of first recess portion in tire two neighbouring strip regions circumferentially adjacent to each other
Circumferential region of occupying partly overlaps in tire circumference.
4. pneumatic tire described in any one of claim 1 to 3, wherein
The tire of the end of the belt-like zone of the tire radial direction inner side of first even surface and first even surface
At least one party of the end of the belt-like zone of radial outside has the top pattern circumferentially to come to a point towards tire.
5. pneumatic tire described in any one of claim 1 to 3, wherein
The multiple belt-like zone relative to tire peripheral, oblique towards same to each other, the multiple belt-like zone setting
Are as follows: around tire rotary shaft in swirl shape.
6. pneumatic tire described in any one of claim 1 to 3, wherein
By from tire radial direction inner side towards outside in a manner of from the convex ridge region the convex ridge extending direction and institute
When stating the extending direction of the first even surface, the extending direction of the extending direction of the convex ridge and first even surface is towards tire
Circumferential mutually different direction.
7. pneumatic tire described in any one of claim 1 to 3, wherein
In the sidewall surfaces, in addition to being additionally provided with the badge display area for showing badge equipped with the decorative zones,
The badge display area has: the second even surface, surrounds badge and does not have convex ridge；It is recessed with the second of multiple pit shapes
Portion is surrounded and be arranged in a manner of from second even surface recess by second even surface,
Multiple second recess portions configure in column, the setting of the column of second recess portion are as follows: from tire radial direction inner side towards tire diameter
Extend outward, and is radially orientated tire peripheral, oblique from tire.
8. pneumatic tire according to claim 7, wherein
The multiple belt-like zone relative to tire peripheral, oblique towards same to each other, the multiple belt-like zone setting
Are as follows: around tire rotary shaft be in swirl shape,
Second recess portion is arranged in rows in the swirl direction of the swirl shape.
9. pneumatic tire described in any one of claim 1 to 3, wherein
First even surface is more prominent to the outside of sidewall surfaces than at the top of the convex ridge in the convex ridge region.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-188765 | 2014-09-17 | ||
| JP2014188765 | 2014-09-17 | ||
| PCT/JP2015/076170 WO2016043191A1 (en) | 2014-09-17 | 2015-09-15 | Pneumatic tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107074041A CN107074041A (en) | 2017-08-18 |
| CN107074041B true CN107074041B (en) | 2019-11-08 |
Family
ID=55533228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580050016.6A Active CN107074041B (en) | 2014-09-17 | 2015-09-15 | Pneumatic tire |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP6617560B2 (en) |
| CN (1) | CN107074041B (en) |
| AU (1) | AU2015319188B9 (en) |
| DE (1) | DE112015004233T5 (en) |
| WO (1) | WO2016043191A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3061079A1 (en) * | 2016-12-27 | 2018-06-29 | Compagnie Generale Des Etablissements Michelin | PNEUMATIC COMPRISING FLANK BARS WITH A VARIABLE NO-ARRANGEMENT |
| JP7057125B2 (en) * | 2017-12-22 | 2022-04-19 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Pneumatic tires |
| JP7129380B2 (en) * | 2019-06-03 | 2022-09-01 | 株式会社ブリヂストン | tire |
| US20220297481A1 (en) * | 2019-09-30 | 2022-09-22 | The Yokohama Rubber Co., Ltd. | Pneumatic tire |
| DE102020200845A1 (en) * | 2020-01-24 | 2021-07-29 | Continental Reifen Deutschland Gmbh | Tires for a motor vehicle |
| JP2023032840A (en) * | 2021-08-27 | 2023-03-09 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | pneumatic tire |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10147114A (en) * | 1996-11-15 | 1998-06-02 | Bridgestone Corp | Pneumatic tire |
| CN102848861A (en) * | 2011-06-28 | 2013-01-02 | 横滨橡胶株式会社 | Pneumatic tire |
| CN102874057A (en) * | 2011-07-13 | 2013-01-16 | 韩国轮胎株式会社 | A vehicle tire having a sidewall section with a plurality of curved protrusions |
| JP2013071651A (en) * | 2011-09-28 | 2013-04-22 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
| JP2014037215A (en) * | 2012-08-20 | 2014-02-27 | Sumitomo Rubber Ind Ltd | Run-flat tire |
| WO2014199731A1 (en) * | 2013-06-14 | 2014-12-18 | 横浜ゴム株式会社 | Pneumatic tire |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10193922A (en) * | 1997-01-08 | 1998-07-28 | Bridgestone Corp | Tire provided with semicircular ring, decorative belt composed of many ridges |
| JP4017457B2 (en) * | 2002-07-04 | 2007-12-05 | 横浜ゴム株式会社 | Pneumatic tire |
| JP2008219704A (en) * | 2007-03-07 | 2008-09-18 | Olympus Imaging Corp | Semiconductor device |
| JP5394679B2 (en) * | 2008-08-28 | 2014-01-22 | 株式会社ブリヂストン | Pneumatic tire |
| JP5293690B2 (en) * | 2010-06-28 | 2013-09-18 | 横浜ゴム株式会社 | Pneumatic tire |
| JP4803316B1 (en) * | 2010-11-17 | 2011-10-26 | 横浜ゴム株式会社 | Pneumatic tire |
-
2015
- 2015-09-15 WO PCT/JP2015/076170 patent/WO2016043191A1/en active Application Filing
- 2015-09-15 JP JP2015545582A patent/JP6617560B2/en active Active
- 2015-09-15 CN CN201580050016.6A patent/CN107074041B/en active Active
- 2015-09-15 DE DE112015004233.4T patent/DE112015004233T5/en not_active Withdrawn
- 2015-09-15 AU AU2015319188A patent/AU2015319188B9/en not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10147114A (en) * | 1996-11-15 | 1998-06-02 | Bridgestone Corp | Pneumatic tire |
| CN102848861A (en) * | 2011-06-28 | 2013-01-02 | 横滨橡胶株式会社 | Pneumatic tire |
| CN102874057A (en) * | 2011-07-13 | 2013-01-16 | 韩国轮胎株式会社 | A vehicle tire having a sidewall section with a plurality of curved protrusions |
| JP2013071651A (en) * | 2011-09-28 | 2013-04-22 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
| JP2014037215A (en) * | 2012-08-20 | 2014-02-27 | Sumitomo Rubber Ind Ltd | Run-flat tire |
| WO2014199731A1 (en) * | 2013-06-14 | 2014-12-18 | 横浜ゴム株式会社 | Pneumatic tire |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2015319188B2 (en) | 2018-10-18 |
| WO2016043191A1 (en) | 2016-03-24 |
| AU2015319188B9 (en) | 2019-02-28 |
| JPWO2016043191A1 (en) | 2017-06-29 |
| JP6617560B2 (en) | 2019-12-11 |
| DE112015004233T5 (en) | 2017-06-14 |
| CN107074041A (en) | 2017-08-18 |
| AU2015319188A1 (en) | 2017-05-04 |
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