WO2016043191A1 - Pneumatic tire - Google Patents
Pneumatic tire Download PDFInfo
- Publication number
- WO2016043191A1 WO2016043191A1 PCT/JP2015/076170 JP2015076170W WO2016043191A1 WO 2016043191 A1 WO2016043191 A1 WO 2016043191A1 JP 2015076170 W JP2015076170 W JP 2015076170W WO 2016043191 A1 WO2016043191 A1 WO 2016043191A1
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- WIPO (PCT)
- Prior art keywords
- tire
- belt
- smooth surface
- region
- circumferential direction
- Prior art date
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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
- B60C13/001—Decorating, marking or the like
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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
Definitions
- the present invention relates to a pneumatic tire, and more particularly to a pattern on a sidewall surface of the pneumatic tire.
- a plurality of dimple-shaped recesses are provided in a first region including a tire maximum width position on a sidewall surface of a pneumatic tire, and each of the recesses is arranged in one direction so as to cover each of the recesses.
- a pneumatic tire provided with a plurality of linear troughs extending to the surface and subjected to serration processing (Patent Document 1).
- the air resistance is reduced and the fuel consumption can be improved.
- the recesses are uniform in the decorative region on the sidewall surface.
- the total number of recesses is extremely large. Accordingly, it is necessary to provide a large number of convex portions on the tire vulcanization mold. For this reason, there is a problem that the processing cost of the tire vulcanization mold is increased, and the manufacturing cost of the tire is increased.
- an object of the present invention is to provide a pneumatic tire capable of effectively reducing the air resistance during rolling of the tire while suppressing the tire manufacturing cost by suppressing the processing cost of the tire vulcanizing mold.
- the present technology includes the following various types of pneumatic tires.
- the first smooth surface extends in the shape of a belt on the sidewall surface from the tire radial inner side toward the tire radial outer side, and the first smooth surface extends outward in the tire radial direction.
- a plurality of strip-like regions configured to extend from the tire radial direction to the tire circumferential direction when extending toward the tire,
- the belt-shaped region is disposed on the sidewall surface dispersed in the tire circumferential direction,
- a mark display area for displaying a mark is provided on the sidewall surface,
- the mark display area includes a second smooth surface that does not have a ridge surrounding the mark, and a plurality of dimple-like shapes that are surrounded by the second smooth surface and are recessed from the second plane.
- a second recess, The plurality of second recesses are arranged in a row, and the row of the second recesses extends from the inner side in the tire radial direction toward the outer side in the tire radial direction and is inclined from the tire radial direction to the tire circumferential direction.
- FIG. 2 It is a profile sectional view of an example of a pneumatic tire of this embodiment. It is the figure which showed an example of the surface of the side part of this embodiment.
- (A) is an enlarged view of a part of the pattern (pattern) on the sidewall surface of the tire shown in FIG. 2, and
- (b) is a cross section taken along line XX shown in FIG. 3 (a).
- FIG. It is a figure explaining the flow of the air around the sidewall surface in the tire of this embodiment. It is a figure explaining the air resistance by the pattern of the sidewall surface in the tire of this embodiment. It is a figure which shows an example of the arrangement
- the pneumatic tire of the present embodiment (hereinafter simply referred to as a tire) will be described in detail.
- the pneumatic tire of this embodiment described below is applied to, for example, a tire for a passenger car, but can also be applied to a tire for a small truck or a tire for a bus / truck.
- the pneumatic tire of this embodiment described below is a passenger tire.
- the tire width direction is a direction parallel to the rotation axis of the pneumatic tire.
- the outer side in the tire width direction is the side away from the tire center line CL representing the tire equatorial plane in the tire width direction.
- the inner side in the tire width direction is a side closer to the tire center line CL in the tire width direction.
- the tire circumferential direction is a direction in which the pneumatic tire rotates around the rotation axis of the pneumatic tire.
- the tire radial direction is a direction orthogonal to the rotation axis of the pneumatic tire.
- the outer side in the tire radial direction refers to the side away from the rotation axis.
- the inner side in the tire radial direction refers to the side approaching the rotation axis.
- FIG. 1 shows a profile cross-sectional view of an example of a tire 10 of the present embodiment.
- the tire 10 includes a tread portion 10T having a tread pattern, a pair of bead portions 10B, and a pair of bead portions 10B and a pair of side portions 10S that are connected to the tread portion 10T.
- the tire 10 includes a carcass ply layer 12, a belt layer 14, and a bead core 16 as a skeleton material. Around these skeleton materials, a tread rubber member 18, a side rubber member 20, and a bead filler rubber member 22. And a rim cushion rubber member 24 and an inner liner rubber member 26.
- the carcass ply layer 12 is made of a carcass ply material in which organic fibers are covered with rubber, which is wound between a pair of annular bead cores 16 to form a toroidal shape.
- the carcass ply material is wound around the bead core 16 and extends outward in the tire radial direction.
- a belt layer 14 composed of two belt members 14a and 14b is provided outside the carcass ply layer 12 in the tire radial direction.
- the belt layer 14 is a member in which a steel cord disposed with a predetermined angle, for example, 20 to 30 degrees inclined with respect to the tire circumferential direction, is covered with rubber, and the lower belt material 14a becomes the upper belt material 14b.
- the width in the tire width direction is longer than that.
- the inclination directions of the steel cords of the two-layer belt materials 14a and 14b are opposite to each other. For this reason, belt material 14a, 14b is a crossing layer, and controls expansion of carcass ply layer
- a tread rubber member 18 is provided on the outer side of the belt layer 14 in the tire radial direction, and side rubber members 20 are connected to both ends of the tread rubber member 18 to form a side portion 10S.
- a rim cushion rubber member 24 is provided at the inner end in the tire radial direction of the side rubber member 20 and is in contact with a rim on which the tire 10 is mounted.
- the bead core 16 is sandwiched between the portion of the carcass ply layer 12 before being wound around the bead core 16 and the portion of the carcass ply layer 12 that is wound around the bead core 16 on the outer side in the tire radial direction.
- a bead filler rubber member 22 is provided.
- An inner liner rubber member 26 is provided on the inner surface of the tire 10 facing the tire cavity region filled with air surrounded by the tire 10 and the rim.
- the tire 10 includes a two-layer belt cover layer 30 that covers the belt layer 14 from the outer side in the tire radial direction of the belt layer 14 and is coated with an organic fiber or a steel cord with rubber.
- a bead reinforcing material may be provided between the carcass layer 12 wound around the bead core 16 and the bead filler rubber member 22.
- the tire structure of the present embodiment is as described above, but the tire structure is not particularly limited, and a known tire structure can be applied. Further, the tread pattern in the tread portion 10T of the tire 10 of the present embodiment is not particularly limited.
- FIG. 2 is a diagram illustrating an example of a sidewall surface of the side portion 10S.
- Fig.3 (a) is the enlarged view which expanded a part of pattern (pattern) of the sidewall surface of the side part 10S of the tire shown in FIG. 2,
- FIG.3 (b) is shown in Fig.3 (a). It is sectional drawing along the XX line.
- An information display area 32, a mark display area 33, and a decoration area 34 are provided on the sidewall surface of the tire of the present embodiment.
- the mark of the combination of the letter “Y” and the letter “YOKOHAMA” in FIG. 2 is a registered trademark.
- Information such as a tire size and a standard of the tire 10 is written in the information display area 32.
- the mark display area 33 a brand name of the tire 10 or a mark such as a tire manufacturer is displayed.
- the decoration region 34 is provided in a region including the tire maximum width position of the tire 10.
- the decoration area 34 is provided with the following pattern, which is a side pattern of the side portion 10S.
- the decoration region 34 includes a ridge region 36 and a strip region 38.
- the ridge region 36 is a region provided with a plurality of ridges 36a extending in one direction. For example, by performing serration processing on the inner surface of the vulcanizing mold of the tire 10, ridge-shaped irregularities that become the ridge regions 36 are formed on the inner surface of the mold. As a result, the ridge 36a is formed. (In FIG. 2, the line of the ridge 36a in the ridge region 36 is blacked out and cannot be identified.)
- a plurality of strip regions 38 are provided on the sidewall surface.
- the belt-like region 38 includes a belt-like first smooth surface 39 and a first recess 40 that do not have a ridge surrounded by the ridge region 36.
- a plurality of first recesses 40 are provided in a circular dimple shape.
- the circular shape of the first recess 40 is a perfect circle shape or an elliptical shape.
- the first recess 40 is surrounded by the first smooth surface 39 and is recessed from the first smooth surface 39 toward the inner side in the tire width direction (the tire cavity region side). Is provided. As shown in FIGS.
- the first smooth surface 39 extends in a band shape on the sidewall surface from the inner side in the tire radial direction toward the outer side in the tire radial direction, and the first smooth surface 39.
- the tire When extending toward the outer side in the tire radial direction, the tire extends from the tire radial direction to the tire circumferential direction.
- the belt-like regions 38 are distributed on the sidewall surface in the tire circumferential direction.
- the dimple-shaped first recesses 40 form a row, and this row extends along the direction in which the belt-like region 38 extends in a belt shape.
- the first recesses 40 are preferably arranged in one row, but are not limited to one row, and may be two or more rows.
- Such a pattern of the decoration region 34 can efficiently reduce the air resistance during rolling of the tire even when the number of the dimple-shaped first recesses 40 is smaller than that in the conventional case. Accordingly, it is possible to efficiently suppress the air resistance during rolling of the tire while suppressing the processing cost of the tire vulcanizing mold and consequently the manufacturing cost of the tire.
- FIG. 4 is a diagram illustrating the flow of air around the sidewall surface in the tire 10.
- the tire 10 assembled to the rim R is run in the direction of arrow F, there is a speed difference between the air flow slightly away from the sidewall surface and the air flow near the sidewall surface.
- the air flow A on the sidewall surface spirals and delaminates when it exceeds a certain limit.
- This peeling phenomenon remarkably increases the air resistance of the sidewall.
- the row of the first recesses 40 extends outward in the tire radial direction, the row extends from the tire radial direction to the tire circumference.
- the peeling phenomenon acts as downstream as possible in the traveling direction as much as possible in the same manner as the dimple-like recesses provided uniformly in the decorative region on the sidewall surface. For this reason, it is possible to reduce the air resistance by positioning the spiral flow generation position on the downstream side.
- the number of the first recesses 40 of the present embodiment is provided in the belt-like region 38, it is smaller than the total number of dimple-like recesses provided uniformly in the decoration region as in the prior art.
- the processing cost required for preparation of the convex part of the tire vulcanization mold corresponding to the concave part can be suppressed.
- the manufacturing cost of a tire can be held down. Therefore, the tire of this embodiment can effectively reduce the air resistance during tire rolling while suppressing the manufacturing cost of the tire.
- the belt-like region 38 of the tire 10 of the present embodiment may be uniformly distributed at a certain distance on the tire circumference, but the following modes are preferable. That is, in the plurality of belt-like regions, a plurality of sets of belt-like regions adjacent to each other in the tire circumferential direction are arranged in a plurality dispersed in the tire circumferential direction. At this time, the pair of band-like regions are provided at positions closer to each other than the other band-like regions.
- the plurality of rows of the first recesses 40 are set corresponding to the set of adjacent belt-like regions, the set of the plurality of rows is accompanied by the movement of the tire as described above. The separation phenomenon in the air flow around the sidewall surface that occurs can be efficiently located downstream.
- the occupied region in the tire circumferential direction of the row of the first concave portions 40 included in two adjacent belt-like regions adjacent to each other in the tire circumferential direction of the set is It is preferable that it overlaps partially.
- the first recesses 40 are not interrupted on the tire circumference, so that when the tire rolls, the flow of air around the sidewall surface is a row of the first recesses 40 in the belt-like regions 38. By touching, the peeling phenomenon can be moved to the downstream side more efficiently.
- the end portion of the belt-like region 38 on the inner side in the tire radial direction of the first smooth surface 39 (the end portion in the inclined direction inclined from the tire radial direction to the tire circumferential direction), and the tire diameter of the first smooth surface 39. It is preferable that at least one of the end portions (end portions in the inclined direction inclined from the tire radial direction to the tire circumferential direction) of the band-like region 38 on the outer side in the direction has a pointed tip pattern in the tire circumferential direction.
- the rolling of the tire (rotation R 1 direction in FIG. 5)
- the flow of air flows as straight arrows.
- FIG. 5 is a diagram for explaining the air resistance due to the pattern of the sidewall surface in the tire of the present embodiment.
- the mark of the combination of the letters “Y” and “YOKOHAMA” in FIG. 5 is registered. Trademark.
- the tip pattern pointed in the tire circumferential direction includes a pattern in which the leading edge is rounded with a curvature radius of 2.0 mm or less, in addition to a pattern in which the leading edge forms an acute angle.
- each of the plurality of belt-like regions 38 has the same inclination direction inclined from the tire radial direction to the tire circumferential direction, and the plurality of belt-like regions 38 are provided so as to form a spiral around the tire rotation axis. It is preferable that the air flow can be rectified. However, as long as the peeling phenomenon in the air flow around the sidewall surface shown in FIG. 4 caused by the movement of the tire 10 can be moved downstream, as shown in FIG. The direction of the inclination with respect to the circumferential direction may be different.
- FIG. 6 is a diagram showing an example of a different arrangement form of the band-like regions 38.
- the occupied area in the tire circumferential direction of the first recess 40 included in the C-shaped band-shaped area 38 shown in FIG. 6 is not shown in FIG. 6, but partially on the tire circumference.
- the overlapping is preferable from the viewpoint of more efficiently moving the peeling phenomenon downstream.
- the extending direction of the ridge 36a in the ridge region 36 and the extending direction of the first smooth surface 39 are viewed from the inner side to the outer side in the tire radial direction, the extending direction of the ridge 36a and the first smoothing surface
- the extending direction of the surface 39 is preferably directed in different directions in the tire circumferential direction (ie, directed in a clockwise direction and a counterclockwise direction) from the viewpoint of making the first smooth surface 39 stand out.
- the first smooth surface 39 stands out in the decoration area 34, a person viewing the sidewall surface moves his / her line of sight along the inclination direction of the first smooth surface 39, and the mark in the mark display area 33 is displayed. Can be easily recognized.
- the spiral shape of the first smooth surface 39 and the row of the first concave portions 40 surrounded by the first smooth surface 39 is conspicuous, the air flow is rectified and the air resistance is reduced. It is easy to be recognized as a tire.
- the mark display area 33 is surrounded by the second smooth surface 42 having no ridge surrounding the mark and the second smooth surface 42, and the second smooth surface 42.
- a plurality of dimple-shaped second recesses 44 provided so as to be recessed from the surface 42, the plurality of second recesses 44 being arranged in a row, and the row of the second recesses 44 is a tire diameter. It is preferably provided so as to extend from the inner side in the tire direction toward the outer side in the tire radial direction and to be inclined from the tire radial direction to the tire circumferential direction.
- the direction of the rows of the second recesses 44 facing the tire circumferential direction is preferably the same as the direction of the rows of the first recesses 40 facing the tire circumferential direction. That is, the second recesses 44 are preferably provided in a row in the spiral direction of the band-like region 38 extending in a spiral shape and the first recess 40.
- the mark portion is provided by the second smooth surface 42 so that the mark can be easily visually recognized.
- the 2nd smooth surface 42 makes it easy to produce the peeling phenomenon in the air flow mentioned above. For this reason, it is preferable that the dimple-shaped second recesses 44 are arranged in a row in the mark display area 33.
- the row of the second recesses 44 extends from the inner side in the tire radial direction toward the outer side in the tire radial direction so that the range in which the air flow contacts the row of the second recesses 44 is increased. From the direction to the tire circumferential direction.
- the first smooth surface 39 of the present embodiment protrudes from the top of the ridge 36a in the ridge region 36 to the outside of the sidewall surface. This is preferable in terms of suppressing the resistance of air flow that is likely to occur.
- the function of the 1st recessed part 40 provided so that it may be enclosed by the 1st smooth surface 39 ie, the generation
- the tire 10 may be provided with the decoration region 34 on each of the sidewall surfaces on both sides in the tire width direction, or may be provided with the decoration region 34 only on one side wall surface.
- region 34 is provided in the sidewall surface of both sides, it is preferable that the direction extended in the tire circumferential direction of the strip
- the direction extending in the tire circumferential direction of the belt-like region 38 when the tire 10 is mounted on a wheel on one side of the vehicle, for example, the left wheel is a spiral shape corresponding to the direction of the rotational direction rotating in the forward direction of the vehicle.
- the direction extending in the tire circumferential direction of the belt-like region 38 when the tire 10 is attached to the wheel on the other side of the vehicle, for example, the right wheel corresponds to the direction of the rotational direction rotating in the reverse direction of the vehicle. It may be a spiral shape. Even in this case, in the belt-like regions 38 of the tires 10 on both sides, the peeling phenomenon in the air flow moves downstream by the action of the first recess 40.
- Each of the first recess 40 and the second recess 44 of the tire 10 has a circular opening shape, but is not limited to a circular opening shape, and may be a polygonal shape.
- the 1st recessed part 40 and the 2nd recessed part 44 are not limited to the shape recessed in circular arc shape in the depth direction of a recessed part, The shape recessed in the rectangular shape may be sufficient.
- the air resistance was measured by installing it on a vehicle (minivan type) and examining the fuel consumption. Specifically, the fuel consumption per predetermined distance was calculated from the fuel consumption by running 500 laps at a speed of 100 km / h on a 2 km round course. The higher the fuel consumption, the less air resistance.
- the manufacturing cost was estimated by estimating the production cost of the mold. Specifically, the openings of the first recess 40 and the second recess 44 were circular, the diameter thereof was 3.6 mm, and the depth was adjusted to 0.7 mm. The manufacturing cost of the tire is affected by the production cost of the convex portions on the inner surface of the mold corresponding to the first concave portion 40 and the second concave portion 44.
- the conventional example includes a sidewall surface that does not have the first recess 40 and the second recess 44 among the sidewall surfaces shown in FIG.
- the comparative example has a uniform dimple-like recess on the entire decoration region on the sidewall surface.
- Examples 1 to 8 have the first recess 40 on the sidewall surface shown in FIG. 2, but do not have the second recess 44.
- Example 9 has the 1st recessed part 40 and the 2nd recessed part 44 in the sidewall surface shown in FIG.
- “Inclination direction” and “Inclination direction” in “Inclination direction of first recess” is the direction in the tire circumferential direction that is the same as the rotational direction when the tire advances in the forward direction, or is the opposite? Represents.
- “the same direction as the rotational direction” means that when the first row of recesses advances from the outer side to the inner side in the tire radial direction, the direction in which the row of first recesses extends in two directions in the tire circumferential direction. This means that the direction of rotation when traveling in the direction and the direction in the tire circumferential direction match.
- the direction opposite to the rotational direction means that when the first row of recesses advances from the outer side to the inner side in the tire radial direction, the direction in which the first row of recesses extends in two directions in the tire circumferential direction It is the direction opposite to the direction of rotation when moving in the direction.
- the “spiral shape” in the embodiment means that the arrangement direction of the band-shaped region 38 and the first recess 40 is arranged in a spiral shape as shown in FIG. It means that they are arranged in a shape as shown in FIG. “Yes” in “Presence / absence of belt-shaped region groups” in Tables 1 and 2 indicates that two adjacent belt-shaped regions 38 form a group, and a plurality of these groups are distributed on the tire circumference.
- “None” means that the belt-like regions 38 do not form a set and are evenly distributed on the tire circumference one by one.
- “existence of pointed tip pattern in the belt-like area” means “when present” means that the leading edge is an acute angle of 10 degrees, while “not” means that the leading edge is curved. It means that it is rounded with a radius of 3.5 mm.
- the fuel consumption and the manufacturing cost are shown as indexes with the conventional example being 100. It means that the higher the fuel efficiency index is, the better the fuel efficiency is (the amount of fuel required to travel a certain distance is reduced), and the air resistance is reduced. A lower manufacturing cost index means a higher manufacturing cost.
- Examples 1 to 8 are substantially the same as the comparative example (the amount of fuel required for traveling over a certain distance is substantially the same), while the manufacturing cost can be greatly reduced. .
- the decrease in fuel consumption by 1 or 2 points is extremely small and is at an acceptable level.
- the manufacturing costs in Examples 1 to 9 are higher than the conventional examples (the index is lower), but the increase is extremely low compared to the comparative examples.
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Abstract
Description
また、車両の燃費向上および車両の最高速度の向上のために、転動中の空気入りタイヤの空気抵抗を低減することも提案されている。空気入りタイヤの空気抵抗は、トレッド部表面に設けられたトレッドパターンの凹凸やサイドウォール表面に設けられた標章やパターンの凹凸に影響される。 In recent years, in order to improve the fuel consumption of a vehicle equipped with a pneumatic tire and improve the maximum speed of the vehicle, it is required to reduce the rolling resistance of the pneumatic tire. In order to reduce the rolling resistance of a pneumatic tire, various forms in which the structure of the pneumatic tire, the tread pattern design, and the like are changed have been proposed.
It has also been proposed to reduce the air resistance of a pneumatic tire during rolling in order to improve vehicle fuel efficiency and vehicle maximum speed. The air resistance of the pneumatic tire is affected by the unevenness of the tread pattern provided on the surface of the tread portion and the unevenness of the mark or pattern provided on the sidewall surface.
[形態1]
空気入りタイヤであって、
トレッド部と、
サイド部と、を含み、
前記サイド部のサイドウォール表面の、前記空気入りタイヤのタイヤ最大幅位置を含む領域には、サイド模様を有する装飾領域が設けられ、
前記装飾領域は、
一方向に延びる複数のリッジが設けられたリッジ領域と、
周囲が前記リッジ領域に囲まれたリッジを有さない帯状の第1の平滑面及び前記第1の平滑面に囲まれ前記第1の平滑面から凹むように設けられた複数のディンプル状の第1の凹部を備え、前記第1の平滑面がタイヤ径方向内側からタイヤ径方向外側に向かってサイドウォール表面上で前記帯状に延び、かつ、前記第1の平滑面が前記タイヤ径方向外側に向かって延びるとき、タイヤ径方向からタイヤ周方向に傾斜するように延びた構成の複数の帯状領域と、を含み、
前記帯状領域は、タイヤ周方向に分散して前記サイドウォール表面上に配置され、
前記第1の凹部は、前記帯状領域が前記帯状に延びる方向に沿うように、列を成して配置されている、ことを特徴とする空気入りタイヤ。 The present technology includes the following various types of pneumatic tires.
[Form 1]
A pneumatic tire,
The tread part,
Including a side part,
In the region including the tire maximum width position of the pneumatic tire on the sidewall surface of the side portion, a decorative region having a side pattern is provided,
The decorative area is
A ridge region provided with a plurality of ridges extending in one direction;
A belt-shaped first smooth surface that does not have a ridge surrounded by the ridge region, and a plurality of dimple-shaped first surfaces surrounded by the first smooth surface and recessed from the first smooth surface. 1 concave portion, the first smooth surface extends in the shape of a belt on the sidewall surface from the tire radial inner side toward the tire radial outer side, and the first smooth surface extends outward in the tire radial direction. A plurality of strip-like regions configured to extend from the tire radial direction to the tire circumferential direction when extending toward the tire,
The belt-shaped region is disposed on the sidewall surface dispersed in the tire circumferential direction,
The pneumatic tire according to claim 1, wherein the first recesses are arranged in a row so that the belt-like region extends along the belt-like direction.
前記複数の帯状領域のうち、タイヤ周方向に互いに隣り合う複数の帯状領域の組が、タイヤ周方向に分散して複数配置され、前記組の帯状領域は、他の帯状領域に比べてお互いに近い位置に設けられている、形態1に記載の空気入りタイヤ。 [Form 2]
Among the plurality of belt-like regions, a plurality of pairs of belt-like regions adjacent to each other in the tire circumferential direction are arranged in a dispersed manner in the tire circumferential direction, and the belt-like regions of the set are mutually compared to other belt-like regions. The pneumatic tire according to aspect 1, which is provided at a close position.
前記組のうちタイヤ周方向に互いに隣接する2つの隣接帯状領域に含まれる第1の凹部の列のタイヤ周方向の占有領域は、タイヤ周上で部分的に重なっている、形態2に記載の空気入りタイヤ。 [Form 3]
The occupying area in the tire circumferential direction of the row of first recesses included in two adjacent belt-like areas adjacent to each other in the tire circumferential direction in the set is partially overlapped on the tire circumference. Pneumatic tire.
前記第1の平滑面のタイヤ径方向内側の前記帯状領域の端部、及び前記第1の平滑面のタイヤ径方向外側の前記帯状領域の端部の少なくとも一方は、タイヤ周方向に向かって尖った先端模様を有している、形態1~3のいずれか1つに記載の空気入りタイヤ。 [Form 4]
At least one of the end of the belt-like region on the inner side in the tire radial direction of the first smooth surface and the end of the belt-like region on the outer side in the tire radial direction of the first smooth surface is pointed toward the tire circumferential direction. 4. The pneumatic tire according to any one of forms 1 to 3, wherein the pneumatic tire has a tip pattern.
前記複数の帯状領域のタイヤ周方向に対する傾斜の向きは互いに同じであり、前記複数の帯状領域は、タイヤ回転軸周りに渦巻き形状を成すように設けられている、形態1~4のいずれか1つに記載の空気入りタイヤ。 [Form 5]
The direction of the inclination of the plurality of belt-like regions with respect to the tire circumferential direction is the same, and the plurality of belt-like regions are provided so as to form a spiral around the tire rotation axis. Pneumatic tire described in one.
前記リッジ領域の前記リッジの延在方向と前記第1の平滑面の延びる方向を、タイヤ径方向内側から外側に向かうようにみたとき、前記リッジの延在方向と、前記第1の平滑面の延びる方向は、タイヤ周方向の互いに異なる方向に向いている、形態1~5のいずれか1つに記載の空気入りタイヤ。 [Form 6]
When the extending direction of the ridge and the extending direction of the first smooth surface in the ridge region are viewed from the inside to the outside in the tire radial direction, the extending direction of the ridge and the first smooth surface The pneumatic tire according to any one of forms 1 to 5, wherein the extending directions are directed in different directions in the tire circumferential direction.
前記サイドウォール表面には、前記装飾領域の他に、さらに、標章を表示するための標章表示領域が設けられ、
前記標章表示領域は、標章を囲むリッジを有さない第2の平滑面と、前記第2の平滑面に囲まれ、前記第2の平面から凹むように設けられた複数のディンプル状の第2の凹部、を備え、
複数の前記第2の凹部は列を成して配置され、前記第2の凹部の列は、タイヤ径方向内側からタイヤ径方向外側に向かって延びるとともに、タイヤ径方向からタイヤ周方向に傾斜するように設けられている、形態1~6のいずれか1つに記載の空気入りタイヤ。 [Form 7]
In addition to the decorative area, a mark display area for displaying a mark is provided on the sidewall surface,
The mark display area includes a second smooth surface that does not have a ridge surrounding the mark, and a plurality of dimple-like shapes that are surrounded by the second smooth surface and are recessed from the second plane. A second recess,
The plurality of second recesses are arranged in a row, and the row of the second recesses extends from the inner side in the tire radial direction toward the outer side in the tire radial direction and is inclined from the tire radial direction to the tire circumferential direction. The pneumatic tire according to any one of forms 1 to 6, provided as described above.
前記複数の帯状領域のタイヤ周方向に対する傾斜の向きは互いに同じであり、前記複数の帯状領域は、タイヤ回転軸周りに渦巻き形状を成すように設けられ、
前記第2の凹部は、前記渦巻き形状の渦巻き方向に列を成して設けられている、形態7に記載の空気入りタイヤ。 [Form 8]
The direction of the inclination of the plurality of belt-like regions with respect to the tire circumferential direction is the same as each other, and the plurality of belt-like regions are provided so as to form a spiral around the tire rotation axis,
The pneumatic tire according to aspect 7, wherein the second recesses are provided in a row in the spiral direction of the spiral shape.
前記第1の平滑面は、前記リッジ領域のリッジ頂部よりもサイドウォール表面の外側にとびだしている、形態1~8のいずれか1つに記載の空気入りタイヤ。 [Form 9]
The pneumatic tire according to any one of forms 1 to 8, wherein the first smooth surface protrudes outside the sidewall surface from the ridge top of the ridge region.
以下に説明する本実施形態の空気入りタイヤは、例えば、乗用車用タイヤに適用するが、小型トラック用タイヤあるいはバス・トラック用タイヤに適用することもできる。以下説明する本実施形態の空気入りタイヤは乗用車用タイヤである。 Hereinafter, the pneumatic tire of the present embodiment (hereinafter simply referred to as a tire) will be described in detail.
The pneumatic tire of this embodiment described below is applied to, for example, a tire for a passenger car, but can also be applied to a tire for a small truck or a tire for a bus / truck. The pneumatic tire of this embodiment described below is a passenger tire.
図1は、本実施形態のタイヤ10の一例のプロファイル断面図を示す。タイヤ10は、トレッドパターンを有するトレッド部10Tと、一対のビード部10Bと、トレッド部10Tの両側に設けられ、一対のビード部10Bとトレッド部10Tに接続される一対のサイド部10Sと、を備える。
タイヤ10は、骨格材として、カーカスプライ層12と、ベルト層14と、ビードコア16とを有し、これらの骨格材の周りに、トレッドゴム部材18と、サイドゴム部材20と、ビードフィラーゴム部材22と、リムクッションゴム部材24と、インナーライナゴム部材26と、を主に有する。 (Tire structure)
FIG. 1 shows a profile cross-sectional view of an example of a
The
この他に、タイヤ10は、ベルト層14のタイヤ径方向外側からベルト層14を覆う、有機繊維あるいはスチールコードをゴムで被覆した2層のベルトカバー層30を備える。また、ビードコア16の周りに巻きまわしたカーカス層12とビードフィラーゴム部材22との間にビード補強材を備えてもよい。本実施形態のタイヤ構造は上記の通りであるが、タイヤ構造は、特に限定されず、公知のタイヤ構造を適用することができる。また、本実施形態のタイヤ10のトレッド部10Tにおけるトレッドパターンは、特に限定されない。 A
In addition, the
図2は、サイド部10Sのサイドウォール表面の一例を示した図である。図3(a)は、図2に示すタイヤのサイド部10Sのサイドウォール表面の模様(パターン)の一部を拡大した拡大図であり、図3(b)は、図3(a)に示すX-X線に沿った断面図である。
本実施形態のタイヤのサイドウォール表面には、情報表示領域32と、標章表示領域33と、装飾領域34と、が設けられている。図2中の「Y」の文字と「YOKOHAMA」の文字の組み合わせの標章は、登録商標である。
情報表示領域32には、タイヤ10のタイヤサイズや規格等の情報が記されている。標章表示領域33には、タイヤ10のブランド名、あるいはタイヤ製造メーカ等の標章が表示されている。 (Sidewall pattern)
FIG. 2 is a diagram illustrating an example of a sidewall surface of the
An
Information such as a tire size and a standard of the
リッジ領域36は、一方向に延びる複数のリッジ36aが設けられた領域である。例えばタイヤ10の加硫用金型の内表面にセレーション加工を行なうことによりリッジ領域36となるリッジ状の凹凸が金型の内表面に形成され、この凹凸が加硫時、タイヤのサイドウォール表面に転写されることにより、リッジ36aが形成される。(図2では、リッジ領域36のリッジ36aの線は黒くつぶれ識別できない。) The
The
帯状領域38は、サイドウォール表面に、タイヤ周方向に分散して配置されている。ディンプル状の第1の凹部40は列を成し、この列は、帯状領域38が帯状に延びる方向に沿って延びている。本実施形態では、第1の凹部40は列は一列であることが好ましいが、一列に限定されず、二列以上であってもよい。 A plurality of
The belt-
リムRにリム組みしたタイヤ10を矢印F方向に走行させると、サイドウォール表面から少し離れた部分の空気の流れとサイドウォール表面近傍の空気の流れとには速度差があり、この速度差はタイヤの走行速度の増大に伴って増加し、一定限度を越えるとサイドウォール表面の空気の流れAが渦巻状になって剥離する。この剥離現象がサイドウォールの空気抵抗を著しく大きくする。この剥離現象を生じ難くさせるために、すなわち剥離現象を下流側に位置させるために、第1の凹部40の列がタイヤ径方向外側に向かって延びるとき、この列は、タイヤ径方向からタイヤ周方向に傾斜するように延びている帯状領域38の延びる方向に沿っている。このため、回転して移動するタイヤにおいて、サイドウォール表面の装飾領域に均一に設けられたディンプル状の凹部と同様に、剥離現象をできる限り進行方向に対して下流側に位置するよう作用する。このため、渦巻流の発生位置を下流側に位置させて空気抵抗を低減することができる。
一方、本実施形態の第1の凹部40の個数は、帯状領域38内に設けられているので、従来のように装飾領域に均一に設けられたディンプル状の凹部の総数よりも少ない。このため、凹部に対応するタイヤ加硫用金型の凸部の作製のために要する加工コストを抑えることができる。これによりタイヤの製造コストを抑えることができる。したがって、本実施形態のタイヤは、タイヤの製造コストを抑えつつ、タイヤ転動時の空気抵抗を有効に低減することができる。 FIG. 4 is a diagram illustrating the flow of air around the sidewall surface in the
When the
On the other hand, since the number of the
タイヤ周方向に尖った先端模様とは、最先端が鋭角の角を成した模様の他に、最先端の角を曲率半径2.0mm以下で丸めた模様も含まれる。 In the present embodiment, the end portion of the belt-
The tip pattern pointed in the tire circumferential direction includes a pattern in which the leading edge is rounded with a curvature radius of 2.0 mm or less, in addition to a pattern in which the leading edge forms an acute angle.
タイヤ10の第1の凹部40及び第2の凹部44は、いずれも円形状の開口形状であるが、円形状の開口形状に限定されず、多角形形状であってもよい。また、第1の凹部40及び第2の凹部44は、凹部の深さ方向に円弧形状に凹んだ形状に限定されず、矩形形状に凹んだ形状であってもよい。 The
Each of the
本実施形態の効果を確認するために、サイドウォール表面に種々の模様を作製して、タイヤの製造コストと空気抵抗を調べた。タイヤサイズは195/65R15 91Hとし、前後輪の空気圧を240kPaとし、15×6Jのリムを使用した。 (Examples, comparative examples, conventional examples)
In order to confirm the effect of this embodiment, various patterns were produced on the sidewall surface, and the manufacturing cost and air resistance of the tire were examined. The tire size was 195 / 65R15 91H, the front and rear wheel air pressure was 240 kPa, and a 15 × 6J rim was used.
一方、製造コストは、金型の作製費用を見積もることにより行なった。具体的には、第1の凹部40及び第2の凹部44の開口を円形状としその直径を3.6mmとし、深さを0.7mmに揃えた。タイヤの製造コストは、第1の凹部40及び第2の凹部44に相当する金型の内表面の凸部の作製コストの影響を受ける。 The air resistance was measured by installing it on a vehicle (minivan type) and examining the fuel consumption. Specifically, the fuel consumption per predetermined distance was calculated from the fuel consumption by running 500 laps at a speed of 100 km / h on a 2 km round course. The higher the fuel consumption, the less air resistance.
On the other hand, the manufacturing cost was estimated by estimating the production cost of the mold. Specifically, the openings of the
従来例は、図2に示すサイドウォール表面のうち第1の凹部40及び第2の凹部44を有さないサイドウォール表面を備える。
比較例は、サイドウォール表面の装飾領域全面に均一なディンプル状の凹部を有する。
実施例1~8は、図2に示すサイドウォール表面に、第1の凹部40を有するが、第2の凹部44を有さない。実施例9は、図2に示すサイドウォール表面に、第1の凹部40及び第2の凹部44を有する。
表1,2における「第1の凹部の傾斜配列の有無と傾斜の向き」における「傾斜の向き」とは、タイヤが前進方向に進むときの回転方向と同じタイヤ周方向における向きか、逆かを表す。表中「回転方向と同方向」とは、タイヤ径方向外側から内側に第1の凹部の列が進むとき、タイヤ周方向の2つの方向に関して、第1の凹部の列の延びる方向が、前進方向に進むときの回転方向とタイヤ周方向における向きが一致していることをいう。「回転方向と逆方向」とは、タイヤ径方向外側から内側に第1の凹部の列が進むとき、タイヤ周方向の2つの方向に関して、第1の凹部の列の延びる方向が、タイヤが前進方向に進むときの回転方向と反対の方向であることをいう。また、実施例における「螺旋状」とは、図2に示すように帯状領域38及び第1の凹部40の配列方向が渦巻き形状に配置されることを意味し、「ハの字状」は、図6に示すような形状に配置されることを意味する。
表1,2の「帯状領域の組の有無」の中で「有り」は、隣接する2つの帯状領域38が組を成し、この組が複数、タイヤ周上に分散配意されている形態を意味し、「無し」は、帯状領域38が組を作らず、1つずつタイヤ周上に均等に分散配置されている形態を意味する。
表1,2の「帯状領域の尖った先端模様の有無」は、「有り」の場合、最先端は10度の鋭角の角であることを意味し、「無し」の場合、最先端を曲率半径3.5mmで丸くしたことを意味する。 There are 11 types of tires manufactured: a conventional example, a comparative example, and Examples 1 to 9.
The conventional example includes a sidewall surface that does not have the
The comparative example has a uniform dimple-like recess on the entire decoration region on the sidewall surface.
Examples 1 to 8 have the
In Tables 1 and 2, “Inclination direction” and “Inclination direction” in “Inclination direction of first recess” is the direction in the tire circumferential direction that is the same as the rotational direction when the tire advances in the forward direction, or is the opposite? Represents. In the table, “the same direction as the rotational direction” means that when the first row of recesses advances from the outer side to the inner side in the tire radial direction, the direction in which the row of first recesses extends in two directions in the tire circumferential direction. This means that the direction of rotation when traveling in the direction and the direction in the tire circumferential direction match. “The direction opposite to the rotational direction” means that when the first row of recesses advances from the outer side to the inner side in the tire radial direction, the direction in which the first row of recesses extends in two directions in the tire circumferential direction It is the direction opposite to the direction of rotation when moving in the direction. In addition, the “spiral shape” in the embodiment means that the arrangement direction of the band-shaped
“Yes” in “Presence / absence of belt-shaped region groups” in Tables 1 and 2 indicates that two adjacent belt-shaped
In Tables 1 and 2, “existence of pointed tip pattern in the belt-like area” means “when present” means that the leading edge is an acute angle of 10 degrees, while “not” means that the leading edge is curved. It means that it is rounded with a radius of 3.5 mm.
また、実施例1~9における製造コストは、従来例対比上昇する(指数は低くなる)が、その上昇分は比較例に比べて極めて低い。 From Table 1 above, in terms of fuel consumption, Examples 1 to 8 are substantially the same as the comparative example (the amount of fuel required for traveling over a certain distance is substantially the same), while the manufacturing cost can be greatly reduced. . The decrease in fuel consumption by 1 or 2 points is extremely small and is at an acceptable level.
In addition, the manufacturing costs in Examples 1 to 9 are higher than the conventional examples (the index is lower), but the increase is extremely low compared to the comparative examples.
10T トレッド部
10B ビード部
10S サイド部
12 カーカスプライ層
14 ベルト層
16 ビードコア
18 トレッドゴム部材
20 サイドゴム部材
22 ビードフィラーゴム部材
24 リムクッションゴム部材
26 インナーライナゴム部材
28 ビード補強材
30 ベルトカバー層
32 情報表示領域
33 標章表示領域
34 装飾領域
36 リッジ領域
38 帯状領域
39 第1の平滑面
40 第1の凹部
42 第2の平滑面
44 第2の凹部 DESCRIPTION OF
Claims (9)
- 空気入りタイヤであって、
トレッド部と、
サイド部と、を含み、
前記サイド部のサイドウォール表面の、前記空気入りタイヤのタイヤ最大幅位置を含む領域には、サイド模様を有する装飾領域が設けられ、
前記装飾領域は、
一方向に延びる複数のリッジが設けられたリッジ領域と、
周囲が前記リッジ領域に囲まれたリッジを有さない帯状の第1の平滑面及び前記第1の平滑面に囲まれ前記第1の平滑面から凹むように設けられた複数のディンプル状の第1の凹部を備え、前記第1の平滑面がタイヤ径方向内側からタイヤ径方向外側に向かってサイドウォール表面上で前記帯状に延び、かつ、前記第1の平滑面が前記タイヤ径方向外側に向かって延びるとき、タイヤ径方向からタイヤ周方向に傾斜するように延びた構成の複数の帯状領域と、を含み、
前記帯状領域は、タイヤ周方向に分散して前記サイドウォール表面上に配置され、
前記第1の凹部は、前記帯状領域が前記帯状に延びる方向に沿うように、列を成して配置されている、ことを特徴とする空気入りタイヤ。 A pneumatic tire,
The tread part,
Including a side part,
In the region including the tire maximum width position of the pneumatic tire on the sidewall surface of the side portion, a decorative region having a side pattern is provided,
The decorative area is
A ridge region provided with a plurality of ridges extending in one direction;
A belt-shaped first smooth surface that does not have a ridge surrounded by the ridge region, and a plurality of dimple-shaped first surfaces surrounded by the first smooth surface and recessed from the first smooth surface. 1 concave portion, the first smooth surface extends in the shape of a belt on the sidewall surface from the tire radial inner side toward the tire radial outer side, and the first smooth surface extends outward in the tire radial direction. A plurality of strip-like regions configured to extend from the tire radial direction to the tire circumferential direction when extending toward the tire,
The belt-shaped region is disposed on the sidewall surface dispersed in the tire circumferential direction,
The pneumatic tire according to claim 1, wherein the first recesses are arranged in a row so that the belt-like region extends along the belt-like direction. - 前記複数の帯状領域のうち、タイヤ周方向に互いに隣り合う複数の帯状領域の組が、タイヤ周方向に分散して複数配置され、前記組の帯状領域は、他の帯状領域に比べてお互いに近い位置に設けられている、請求項1に記載の空気入りタイヤ。 Among the plurality of belt-like regions, a plurality of pairs of belt-like regions adjacent to each other in the tire circumferential direction are arranged in a dispersed manner in the tire circumferential direction, and the belt-like regions of the set are mutually compared to other belt-like regions. The pneumatic tire according to claim 1, which is provided at a close position.
- 前記組のうちタイヤ周方向に互いに隣接する2つの隣接帯状領域に含まれる第1の凹部の列のタイヤ周方向の占有領域は、タイヤ周上で部分的に重なっている、請求項2に記載の空気入りタイヤ。 The occupied area of the tire circumferential direction of the row | line | column of the 1st recessed part contained in the two adjacent strip | belt-shaped area | regions mutually adjacent | abutted mutually in a tire circumferential direction among the said groups has overlapped on the tire circumference partially. Pneumatic tires.
- 前記第1の平滑面のタイヤ径方向内側の前記帯状領域の端部、及び前記第1の平滑面のタイヤ径方向外側の前記帯状領域の端部の少なくとも一方は、タイヤ周方向に向かって尖った先端模様を有している、請求項1~3のいずれか1項に記載の空気入りタイヤ。 At least one of the end of the belt-like region on the inner side in the tire radial direction of the first smooth surface and the end of the belt-like region on the outer side in the tire radial direction of the first smooth surface is pointed toward the tire circumferential direction. The pneumatic tire according to any one of claims 1 to 3, wherein the pneumatic tire has a tip pattern.
- 前記複数の帯状領域のタイヤ周方向に対する傾斜の向きは互いに同じであり、前記複数の帯状領域は、タイヤ回転軸周りに渦巻き形状を成すように設けられている、請求項1~4のいずれか1項に記載の空気入りタイヤ。 The direction of inclination of the plurality of belt-like regions with respect to the tire circumferential direction is the same, and the plurality of belt-like regions are provided so as to form a spiral around the tire rotation axis. The pneumatic tire according to item 1.
- 前記リッジ領域の前記リッジの延在方向と前記第1の平滑面の延びる方向を、タイヤ径方向内側から外側に向かうようにみたとき、前記リッジの延在方向と、前記第1の平滑面の延びる方向は、タイヤ周方向の互いに異なる方向に向いている、請求項1~5のいずれか1項に記載の空気入りタイヤ。 When the extending direction of the ridge and the extending direction of the first smooth surface in the ridge region are viewed from the inside to the outside in the tire radial direction, the extending direction of the ridge and the first smooth surface The pneumatic tire according to any one of claims 1 to 5, wherein the extending directions are directed in different directions in the tire circumferential direction.
- 前記サイドウォール表面には、前記装飾領域の他に、さらに、標章を表示するための標章表示領域が設けられ、
前記標章表示領域は、標章を囲むリッジを有さない第2の平滑面と、前記第2の平滑面に囲まれ、前記第2の平面から凹むように設けられた複数のディンプル状の第2の凹部、を備え、
複数の前記第2の凹部は列を成して配置され、前記第2の凹部の列は、タイヤ径方向内側からタイヤ径方向外側に向かって延びるとともに、タイヤ径方向からタイヤ周方向に傾斜するように設けられている、請求項1~6のいずれか1項に記載の空気入りタイヤ。 In addition to the decorative area, a mark display area for displaying a mark is provided on the sidewall surface,
The mark display area includes a second smooth surface that does not have a ridge surrounding the mark, and a plurality of dimple-like shapes that are surrounded by the second smooth surface and are recessed from the second plane. A second recess,
The plurality of second recesses are arranged in a row, and the row of the second recesses extends from the inner side in the tire radial direction toward the outer side in the tire radial direction and is inclined from the tire radial direction to the tire circumferential direction. The pneumatic tire according to any one of claims 1 to 6, wherein the pneumatic tire is provided as described above. - 前記複数の帯状領域のタイヤ周方向に対する傾斜の向きはお互いに同じであり、前記複数の帯状領域は、タイヤ回転軸周りに渦巻き形状を成すように設けられ、
前記第2の凹部は、前記渦巻き形状の渦巻き方向に列を成して設けられている、請求項7に記載の空気入りタイヤ。 The direction of the inclination of the plurality of belt-like regions with respect to the tire circumferential direction is the same as each other, and the plurality of belt-like regions are provided so as to form a spiral around the tire rotation axis,
The pneumatic tire according to claim 7, wherein the second recesses are provided in a row in the spiral direction of the spiral shape. - 前記第1の平滑面は、前記リッジ領域のリッジ頂部よりもサイドウォール表面の外側にとびだしている、請求項1~8のいずれか1項に記載の空気入りタイヤ。 The pneumatic tire according to any one of claims 1 to 8, wherein the first smooth surface protrudes outside the sidewall surface from the ridge top of the ridge region.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015545582A JP6617560B2 (en) | 2014-09-17 | 2015-09-15 | Pneumatic tire |
CN201580050016.6A CN107074041B (en) | 2014-09-17 | 2015-09-15 | Pneumatic tire |
AU2015319188A AU2015319188B9 (en) | 2014-09-17 | 2015-09-15 | Pneumatic tire |
DE112015004233.4T DE112015004233T5 (en) | 2014-09-17 | 2015-09-15 | tire |
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JP2014-188765 | 2014-09-17 | ||
JP2014188765 | 2014-09-17 |
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WO2016043191A1 true WO2016043191A1 (en) | 2016-03-24 |
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PCT/JP2015/076170 WO2016043191A1 (en) | 2014-09-17 | 2015-09-15 | Pneumatic tire |
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JP (1) | JP6617560B2 (en) |
CN (1) | CN107074041B (en) |
AU (1) | AU2015319188B9 (en) |
DE (1) | DE112015004233T5 (en) |
WO (1) | WO2016043191A1 (en) |
Cited By (2)
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 |
US20230118426A1 (en) * | 2020-01-24 | 2023-04-20 | Continental Reifen Deutschland Gmbh | Tire for a motor vehicle |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
DE112020003546T5 (en) * | 2019-09-30 | 2022-04-14 | The Yokohama Rubber Co., Ltd. | tire |
JP2023032840A (en) * | 2021-08-27 | 2023-03-09 | Toyo Tire株式会社 | pneumatic tire |
Citations (8)
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JPH10147114A (en) * | 1996-11-15 | 1998-06-02 | Bridgestone Corp | Pneumatic tire |
JPH10193922A (en) * | 1997-01-08 | 1998-07-28 | Bridgestone Corp | Tire provided with semicircular ring, decorative belt composed of many ridges |
JP2004034860A (en) * | 2002-07-04 | 2004-02-05 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
JP2010052585A (en) * | 2008-08-28 | 2010-03-11 | Bridgestone Corp | Pneumatic tire |
JP2013010401A (en) * | 2011-06-28 | 2013-01-17 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
JP2013018474A (en) * | 2011-07-13 | 2013-01-31 | Hankook Tire Co Ltd | Vehicle tire having sidewall for forming curved projection part |
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 |
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JP2008219704A (en) * | 2007-03-07 | 2008-09-18 | Olympus Imaging Corp | Semiconductor device |
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 |
JP6209870B2 (en) * | 2013-06-14 | 2017-10-11 | 横浜ゴム株式会社 | Pneumatic tire |
-
2015
- 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
- 2015-09-15 JP JP2015545582A patent/JP6617560B2/en active Active
- 2015-09-15 WO PCT/JP2015/076170 patent/WO2016043191A1/en active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10147114A (en) * | 1996-11-15 | 1998-06-02 | Bridgestone Corp | Pneumatic tire |
JPH10193922A (en) * | 1997-01-08 | 1998-07-28 | Bridgestone Corp | Tire provided with semicircular ring, decorative belt composed of many ridges |
JP2004034860A (en) * | 2002-07-04 | 2004-02-05 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
JP2010052585A (en) * | 2008-08-28 | 2010-03-11 | Bridgestone Corp | Pneumatic tire |
JP2013010401A (en) * | 2011-06-28 | 2013-01-17 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
JP2013018474A (en) * | 2011-07-13 | 2013-01-31 | Hankook Tire Co Ltd | Vehicle tire having sidewall for forming curved projection part |
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 |
Cited By (3)
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 |
WO2018122484A1 (en) * | 2016-12-27 | 2018-07-05 | Compagnie Generale Des Etablissements Michelin | Tyre with sidewall bars arranged with a variable pitch |
US20230118426A1 (en) * | 2020-01-24 | 2023-04-20 | Continental Reifen Deutschland Gmbh | Tire for a motor vehicle |
Also Published As
Publication number | Publication date |
---|---|
AU2015319188B2 (en) | 2018-10-18 |
JPWO2016043191A1 (en) | 2017-06-29 |
AU2015319188B9 (en) | 2019-02-28 |
CN107074041A (en) | 2017-08-18 |
DE112015004233T5 (en) | 2017-06-14 |
AU2015319188A1 (en) | 2017-05-04 |
JP6617560B2 (en) | 2019-12-11 |
CN107074041B (en) | 2019-11-08 |
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