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WO2015029929A1 - Pneumatique - Google Patents

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Publication number
WO2015029929A1
WO2015029929A1 PCT/JP2014/072108 JP2014072108W WO2015029929A1 WO 2015029929 A1 WO2015029929 A1 WO 2015029929A1 JP 2014072108 W JP2014072108 W JP 2014072108W WO 2015029929 A1 WO2015029929 A1 WO 2015029929A1
Authority
WO
WIPO (PCT)
Prior art keywords
tire
pneumatic tire
recesses
arc
recess
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2014/072108
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English (en)
Japanese (ja)
Inventor
武士 金子
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yokohama Rubber Co Ltd
Original Assignee
Yokohama Rubber Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yokohama Rubber Co Ltd filed Critical Yokohama Rubber Co Ltd
Publication of WO2015029929A1 publication Critical patent/WO2015029929A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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

Definitions

  • the present invention relates to a pneumatic tire, and more particularly to a design of a sidewall surface of the pneumatic tire.
  • a pneumatic tire in which there is no spew or spew mark on the sidewall surface and the air resistance can be reduced (Patent Document 1).
  • a plurality of recesses are provided in a first region including the tire maximum width position on the sidewall surface of the pneumatic tire, and around each of the recesses, a plurality of extending in one direction so as to cover each of the recesses A linear trough is provided and serrated. Providing a plurality of recesses in the region including the tire maximum width position on the sidewall surface of the pneumatic tire can reduce the air resistance caused by the rolling of the pneumatic tire, which is effective in improving fuel consumption.
  • the thickness of the rubber of the sidewall (hereinafter also referred to as a side gauge) is reduced.
  • a side gauge is made thin, an appearance defect that causes irregularities on the sidewall surface occurs with a high probability.
  • the sheet-like carcass member is wound once on the tire molding drum, and the winding start end and the winding end end of the carcass member are partially overlapped and joined.
  • the thickness of the overlapped portion becomes thick, and this portion appears as irregularities on the sidewall surface in the final tire.
  • this unevenness is conspicuous. This poor appearance does not adversely affect the durability and other athletic performances of the tire, but gives the user a concern that the tire may be a defective product with low durability and other athletic performance.
  • an object of the present invention is to provide a pneumatic tire that can reduce the air resistance during rolling of the tire and make the unevenness caused by the tire structure or the like less noticeable on the sidewall surface.
  • One embodiment of the present invention is a pneumatic tire having a sidewall portion.
  • the sidewall portion is any one of n points (n is a natural number of 2 or more) provided at equal intervals on a first arc having a constant radius R 1 centered on the tire rotation center O 1 . It has a pattern region including n recess rows each having a plurality of dimple-like recesses arranged at equal intervals on a second arc having a constant radius R 2 centered at a point O 2 .
  • the interval between the adjacent second arcs is preferably wider than the center interval between the plurality of recesses on the second arc.
  • the equivalent circle diameter of each of the plurality of recesses periodically varies according to the circumferential position on the first arc at the center of the second arc where each of the recesses is located.
  • the equivalent circle diameter of each of the plurality of recesses periodically varies according to the circumferential position of the second arc where each of the recesses is located.
  • the equivalent circle diameter of each of the plurality of recesses periodically varies according to the circumferential position of the tire.
  • the equivalent circle diameter of each of the plurality of recesses varies according to the radial position of the tire.
  • the circle equivalent diameter of the recess is preferably 1.0 to 5.0 mm.
  • the depth of the recess is preferably 0.3 to 1.5 mm.
  • portions other than the portion where the plurality of concave portions are formed in the pattern region are provided with a plurality of linear valley portions extending in one direction and subjected to serration processing.
  • the ratio of the total area of the plurality of concave portions to the area of the serrated portion is preferably 25% to 60%.
  • the pattern region is preferably provided in a region having a distance of 30% to 80% of the tire cross-section height in the tire radial direction from the innermost end portion in the tire radial direction of the sidewall portion.
  • the sidewall portion has a non-decorative region made of a smooth surface provided at least in two locations in the tire circumferential direction,
  • a non-decorative region made of a smooth surface provided at least in two locations in the tire circumferential direction
  • the rubber member used for the sidewall portion has a hardness according to JIS of 45 to 60.
  • air resistance during rolling of the tire can be reduced, and unevenness caused by the tire structure and the like can be made inconspicuous on the sidewall surface.
  • 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 that rotates around the rotation axis of the pneumatic tire as the center of rotation.
  • 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 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.
  • the carcass ply material is wound between a pair of annular bead cores 16 and extends outward in the tire radial direction, so that the carcass ply layer 12 has a toroidal shape.
  • a belt layer 14 is provided outside the carcass ply layer 12 in the tire radial direction.
  • the belt layer 14 is composed of two belt members 14a and 14b.
  • the belt members 14a and 14b are members in which rubber is coated on a steel cord disposed at a predetermined angle, for example, 20 to 30 degrees with respect to the tire circumferential direction.
  • the lower belt material 14a has a longer width in the tire width direction than the upper belt material 14b.
  • the inclination directions of the steel cords of the two-layer belt materials 14a and 14b are opposite to each other. For this reason, the steel cords of the belt members 14a and 14b are interlaced.
  • the belt members 14a and 14b suppress the expansion of the carcass ply layer 12 due to the filled air pressure.
  • a tread rubber member 18 is provided on the outer side of the belt layer 14 in the tire radial direction.
  • Side rubber members 20 that form side portions are connected to both ends of the tread rubber member 18.
  • a rim cushion rubber member 24 is provided at the inner end in the tire radial direction of the side rubber member 20. The rim cushion rubber member 24 comes into contact with a rim on which the tire 10 is mounted.
  • a bead filler rubber member 22 is provided on the outer side in the tire radial direction of the bead core 16 so as to be sandwiched between the carcass ply layers 12 wound around the bead core 16.
  • An inner liner rubber member 26 that suppresses air leakage is provided on the inner surface of the tire 10.
  • the inner surface of the tire 10 faces a tire cavity region that is filled with air surrounded by the tire 10 and the rim.
  • the tire 10 includes a two-layer belt cover layer 30 formed by coating organic fibers with rubber.
  • the belt cover layer 30 covers the belt layer 14 from the outer side in the tire radial direction of the belt layer 14.
  • the tire 10 may include a bead reinforcing material between the carcass layer 12 and the bead filler rubber member 22.
  • the tire structure of the tire 10 of the present embodiment is not limited to the above structure, and may be a known structure or a novel structure.
  • the tread pattern of the tire 10 of the present embodiment is not particularly limited.
  • FIG. 2 is a view showing the surface of the side portion 10S.
  • the side portion 10S has an information display area 32, a pattern area 34, and an undecorated area 36 on the sidewall surface.
  • Such a sidewall pattern of the side portion 10S is provided on both side surfaces of the pneumatic tire, but may be provided only on one side surface. When provided only on one side surface, it is preferable to provide the pattern region 34 of the present embodiment on the surface of the tire 10 that faces the outside of the vehicle when mounted on the vehicle.
  • the information display area 32 is provided adjacent to the inner side in the tire radial direction of the pattern area 34 along the bead portion 10B. Information such as the tire size, model number, and country of manufacture is written in the information display area 32.
  • the non-decorative region 36 is formed of a smooth surface where the valley portion 50 is not provided, and is provided adjacent to the pattern region 34 on the periphery of the side portion 10S.
  • the undecorated region 36 is preferably provided at at least two locations in the tire circumferential direction. In the undecorated area 36, a mark such as a tire name and a tire manufacturer's trademark may be displayed.
  • the undecorated region 36 has a certain width in the tire radial direction.
  • the length of the undecorated region 36 in the tire circumferential direction is provided so as to increase toward the outer side in the tire radial direction.
  • the angles formed by two straight lines connecting both ends of the arc in the tire radial direction outer peripheral side of each undecorated region 36 and the tire rotation center O 1 are ⁇ 1 , ⁇ 2 .
  • ⁇ 1 ′ and ⁇ 2 ′ are angles formed by two straight lines connecting both ends of the arc on the inner circumferential side in the tire radial direction of the region 36 and the tire rotation center, ⁇ 1 > ⁇ 1 ′ and ⁇ 2 > ⁇ 2 'Is preferred.
  • the pattern area 34 is provided adjacent to the outer side of the information display area 32 in the tire radial direction so as to go around the side portion 10S.
  • the pattern area 34 is a position where an undecorated area 36 in the tire circumferential direction is provided, and the height in the tire radial direction is small.
  • the pattern region 34 is provided in a region having a distance of 30% to 80% of the tire cross-section height H in the tire radial direction from the innermost end portion in the tire radial direction of the sidewall portion. This is preferable in that it is attracted to the side pattern by a periodic change in the size of the recess 60.
  • the tire cross-section height H is a radial direction in which the distance from the tire rotation center of the tread portion 10 ⁇ / b> T is maximum from the innermost end portion of the tire bead portion 10 ⁇ / b> B in the tire radial direction. This is the distance in the tire radial direction to the position.
  • the pattern area 34 includes the tire maximum width position.
  • the tire maximum width position refers to a position in the tire radial direction where the tire width in the tire width direction is maximum.
  • the tire width refers to the maximum width between the side portions on both sides obtained by mounting on a rim determined by JATMA, ETRTO or TRA and filling with a predetermined air pressure.
  • FIG. 3 is a partially enlarged view of the pattern region 34 on the side wall surface of the side portion 10S.
  • the pattern region 34 is provided with a plurality of linear valley portions 50 and a plurality of concave portions (circled portions in FIG. 2) 60.
  • the direction in which the plurality of valley portions 50 extend may be any direction, but is preferably provided in a region excluding the inside of the concave portion 60 of the pattern region 34 so as to extend radially in the tire radial direction.
  • a ridge 52 is formed between the valleys 50 adjacent to each other, and a serration pattern composed of the valley 50 and the ridge 52 is formed.
  • unevenness is formed on the surface of the vulcanization mold by serration processing, and the tire is pressure-cured in the vulcanization mold at the time of vulcanization, whereby the pattern region 34 on the surface of the sidewall 10S of the tire 10 is The valley 50 and the ridge 52 can be formed.
  • the ratio of the total area of the plurality of recesses 60 to the area of the serrated portion (portion having the serration pattern) is 25%. It is preferable to be 60% from the viewpoint of reducing air resistance.
  • the area ratio is less than 25%, the air resistance cannot be reduced, and the recess 60 becomes too sparse, and the pattern in the pattern region 34 hardly attracts the viewer's line of sight. The appearing irregularities are easily recognized.
  • the area ratio exceeds 60%, the air resistance cannot be reduced.
  • the area ratio is more preferably 30 to 45%.
  • the recess 60 has a dimple shape that is recessed in a spherical shape, and the contour of the recess 60 is preferably circular.
  • the plurality of concave portions are n (n is a natural number of 2 or more) provided at equal intervals on the first arc C 1 having a constant radius R 1 centered on the tire rotation center O 1 in a side view of the tire.
  • n recess rows are arranged at equal intervals and spaced apart from each other on a plurality of second arcs C 2 having a constant radius R 2 centered on any point O 2 .
  • equal intervals means that the distances (center intervals) between the centers of the recesses 60 are equal.
  • the recessed part 60 is not circular, it means that the distance between the gravity centers of the recessed part 60 is equal intervals.
  • the pattern region 34 has n number of such recess rows.
  • the sum of R 1 and R 2 is larger than the tire diameter, and the absolute value of the difference between R 1 and R 2 is smaller than the tire diameter.
  • the second circular arc C 2 to each other so as to identify the look person adjacent interval of the second circular arc C 2 adjacent to each other, rather than the center spacing of the plurality of recesses 60 with each other on the second circular arc C2 Wide is preferable.
  • the distance to the other recesses 60 which are adjacent on the same second circular arc C 2 is preferably less than the distance to the recess 60 on the other second circular arc C 2 adjacent .
  • interval of adjacent center O2 of 2nd circular arc is wider than the center space
  • the contour shape of the recess 60 is not limited to a circle, but may be an elliptical shape or a shape close to a polygonal shape (for example, a rectangle).
  • the equivalent circle diameter of the recess 60 (the diameter of a circle having the same area as the occupied area) is larger than the interval between the valley portions 50.
  • the area occupied by the recess 60 is the area occupied by the recess 60 on the surface of the sidewall 10S. If the contour shape of the recess 60 is circular, the equivalent circle diameter is equal to the diameter.
  • the equivalent circle diameter of the recess 60 is, for example, 1.0 to 5.0 mm.
  • the equivalent circle diameter of the recess 60 is smaller than 1.0 mm, turbulent flow of the air surrounding the rolling tire 10 due to the recess 60 is difficult to occur. For this reason, the effect of reducing the air resistance due to laminar flow is reduced, and the fuel consumption of the traveling vehicle is deteriorated. Further, if the equivalent circle diameter of the recess 60 is smaller than 1.0 mm, it is difficult to process the vulcanization mold, the accuracy of the mold is insufficient, and the visibility of each recess 60 is deteriorated, resulting in the tire structure and the like. The effect that the unevenness is not conspicuous on the surface of the sidewall 10S is reduced.
  • the equivalent circle diameter of the recess 60 is larger than 5.0 mm, the visibility of each recess 60 is deteriorated, and the effect of not conspicuous unevenness due to the tire structure or the like on the surface of the sidewall 10S is reduced.
  • the equivalent circle diameter of the recess 60 is preferably 3 to 10 times the interval between the adjacent valley portions 50.
  • each of the plurality of concave portions 60 and the plurality of valley portions 50 has the same depth, but does not necessarily have the same depth.
  • the depth of the recess 60 from the sidewall surface is preferably deeper than the depth of the valley 50 from the sidewall surface. Specifically, the depth of the recess is preferably 0.3 to 1.5 mm.
  • the sidewall surface serving as a reference for the depth refers to the smooth surface 56 of the non-decorated region 36.
  • hardness (hardness measured using a type A durometer at a temperature of 20 ° C. in accordance with a durometer hardness test specified in JIS K6253) of 45 to 60 Rubber can be used. When rubber having such hardness is used, poor appearance due to air retention during vulcanization hardly occurs.
  • the equivalent circular diameter of the plurality of recesses is the circumferential direction on the first arc at the center of the second arc in which the recesses are arranged. You may change periodically according to a position.
  • the equivalent circle diameter of the recess 60 increases as the second arc moves to the right side of FIG. 4A.
  • the second arc moves to the right side of FIG. 4B. Accordingly, the equivalent circle diameter of the recess 60 is reduced.
  • the equivalent circle diameter of the recess 60 in the second arc at the center in the left-right direction is the largest, and the equivalent circle diameter of the recess 60 arranged in the second arc toward the left side and the right side in FIG. 5A. Is decreasing.
  • the equivalent circle diameter of the recess in the second arc at the center in the left-right direction is the smallest, and the equivalent circle diameter of the recess arranged in the second arc toward the left and right sides in FIG. Yes.
  • the equivalent circle diameter of the recess 60 may periodically change according to the circumferential position of the tire.
  • the equivalent circle diameters of the plurality of recesses may be periodically changed according to the circumferential position of the second arc.
  • the equivalent circle diameters of the plurality of recesses 60 on the same second arc are the largest at the central portion in the left-right direction of FIG. 6A and decrease toward the left side and the right side of FIG.
  • the equivalent circle diameter of the concave portion 60 on the same second arc is the smallest at the central portion in the left-right direction and increases toward the left side and the right side of FIG. 6B.
  • the equivalent circle diameter of the recess 60 may periodically change according to the circumferential position of the tire.
  • the equivalent circle diameter of the recess 60 may be larger toward the inner side in the tire radial direction, and the equivalent circle diameter of the recess 60 may be decreased toward the outer side in the tire radial direction.
  • the equivalent circle diameter of the recess 60 may be smaller toward the inner side in the tire radial direction, and the equivalent circle diameter of the recess 60 may increase toward the outer side in the tire radial direction.
  • the equivalent circle diameter of the recess 60 has a change of at least three steps.
  • the change in the equivalent circle diameter of the recess 60 may be a continuous change or an intermittent change. A person who looks at the surface of the sidewall 10S is further deprived of by the change in the size of the recess 60, and the unevenness caused by the tire structure or the like is overlooked on the surface of the sidewall 10S and becomes inconspicuous.
  • the maximum depth of the recess 60 is preferably constant regardless of the size of the equivalent circle diameter.
  • the edge of the largest recess 60 can be obtained by making the maximum depth constant regardless of the size of the recess 60. Since the inclination angle in the depth direction of the bottom surface in the vicinity is smaller than the inclination angle in the depth direction of the bottom surface in the vicinity of the edge of the smallest concave portion 60, the light reflection angle on the bottom surface of the concave portion 60 is the size of the concave portion 60. It depends on.
  • Example, conventional example, comparative example In order to investigate the effect of this embodiment, a tire having a sidewall pattern as shown in FIG. 2 was produced.
  • the size of the produced tire is 195 / 65R15 91H.
  • the manufactured tire was viewed from a distance of 1 m from the tire, and whether or not the irregularities actually appearing on the tire sidewall surface (excluding serrations and irregularities due to the concave portions 60) were visually recognized (surface) The visibility of the unevenness was investigated.
  • Tables 1 and 2 below show the specifications and evaluation results of Examples 1 to 7, conventional examples, and comparative examples 1 and 2, respectively.
  • a predetermined radius R 2 centered on a point on the circumference (first arc) of a circle having a predetermined radius R 1 (R 1 > 0) centered on the tire rotation center O 1 .
  • R 1 250.0 mm
  • R 2 50.0 mm.
  • a plurality of concave portions are formed on an arc having a predetermined radius R 2 centered on a point on the circumference of a circle having a predetermined radius R 1 (R 1 > 0) centered on the tire rotation center O 1.
  • 60 were provided at non-uniform intervals so that the intervals between the recesses 60 increased toward the outer side in the tire radial direction.
  • the comparative example 3, and the examples 1 to 7, serrations were applied to portions other than the formation of the concave portions 60 in the pattern region.
  • the interval between the valley portions 50 was 1.0 mm.
  • serration processing was not performed.
  • the shape of the recess 60 is a perfect circular recess, and the bottom surface of the recess 60 is spherical.
  • the number of types of diameters of the recesses, the values of the diameter, and the depth were as shown in Tables 1 and 2. When the number of types of the diameters of the recesses 60 is plural, the diameters of the recesses 60 are arranged so as to periodically change in the tire circumferential direction.
  • Tables 1 and 2 show the values of (2 ⁇ ) / 2 ⁇ where ⁇ is the sum of the angles formed by the two straight lines connecting the tire circumferential ends of each undecorated region and the tire rotation center O 1. It was as follows. In Comparative Examples 1 and 2, no undecorated region was provided.
  • the unevenness caused by the tire structure and the like can be made inconspicuous on the surface of the sidewall 10S by the pattern of the recess 60 that reduces the air resistance during tire rolling.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

L'invention concerne un pneumatique capable de réduire la résistance à l'air lorsque le pneu roule et capable de rendre les irrégularités provoquées par la construction du pneu, etc, moins apparentes sur la surface de la paroi latérale. Une section de paroi latérale a une surface dotée de motifs ayant un nombre n (n étant un entier naturel au moins égal à 2) de rangées creuses ayant une pluralité de sections creuses en forme d'alvéoles disposées à intervalles réguliers sur un second arc d'un rayon établi (R2) ayant en son centre n'importe quel point (O2) parmi n points ménagés à intervalles réguliers sur un premier arc d'un rayon établi (R1) dont le centre est le centre de rotation du pneu (O1).
PCT/JP2014/072108 2013-08-26 2014-08-25 Pneumatique Ceased WO2015029929A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013174943A JP6149607B2 (ja) 2013-08-26 2013-08-26 空気入りタイヤ
JP2013-174943 2013-08-26

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WO2015029929A1 true WO2015029929A1 (fr) 2015-03-05

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3628512A1 (fr) * 2018-09-27 2020-04-01 Bridgestone Europe NV/SA Surveillance de la pression de gonflage de pneus
CN112074423A (zh) * 2018-06-18 2020-12-11 横滨橡胶株式会社 充气轮胎
CN112937224A (zh) * 2019-12-11 2021-06-11 住友橡胶工业株式会社 充气轮胎
CN113043798A (zh) * 2019-12-26 2021-06-29 住友橡胶工业株式会社 充气轮胎
US11225112B2 (en) 2017-07-24 2022-01-18 Bridgestone Americas Tire Operations, Llc Sidewall treatment for cooling and aerodynamics

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6528468B2 (ja) 2015-03-04 2019-06-12 スズキ株式会社 多段式変速装置
CN111216496A (zh) * 2018-11-26 2020-06-02 正新橡胶（中国）有限公司 一种橡胶轮胎
JP7592522B2 (ja) * 2021-03-16 2024-12-02 株式会社ブリヂストン タイヤ
JP7592523B2 (ja) * 2021-03-16 2024-12-02 株式会社ブリヂストン タイヤ

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Publication number Priority date Publication date Assignee Title
JPH11321243A (ja) * 1998-05-18 1999-11-24 Bridgestone Corp 多数の半球状の突起よりなる環状装飾体を備えた空気入りタイヤ
JP2010260376A (ja) * 2009-04-30 2010-11-18 Yokohama Rubber Co Ltd:The 空気入りタイヤ
JP2012106583A (ja) * 2010-11-17 2012-06-07 Yokohama Rubber Co Ltd:The 空気入りタイヤ
JP2012162177A (ja) * 2011-02-07 2012-08-30 Yokohama Rubber Co Ltd:The 空気入りタイヤ
JP2013071651A (ja) * 2011-09-28 2013-04-22 Yokohama Rubber Co Ltd:The 空気入りタイヤ

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Publication number Priority date Publication date Assignee Title
JP6007473B2 (ja) * 2011-09-28 2016-10-12 横浜ゴム株式会社 タイヤ／ホイール組立体

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11321243A (ja) * 1998-05-18 1999-11-24 Bridgestone Corp 多数の半球状の突起よりなる環状装飾体を備えた空気入りタイヤ
JP2010260376A (ja) * 2009-04-30 2010-11-18 Yokohama Rubber Co Ltd:The 空気入りタイヤ
JP2012106583A (ja) * 2010-11-17 2012-06-07 Yokohama Rubber Co Ltd:The 空気入りタイヤ
JP2012162177A (ja) * 2011-02-07 2012-08-30 Yokohama Rubber Co Ltd:The 空気入りタイヤ
JP2013071651A (ja) * 2011-09-28 2013-04-22 Yokohama Rubber Co Ltd:The 空気入りタイヤ

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11225112B2 (en) 2017-07-24 2022-01-18 Bridgestone Americas Tire Operations, Llc Sidewall treatment for cooling and aerodynamics
CN112074423A (zh) * 2018-06-18 2020-12-11 横滨橡胶株式会社 充气轮胎
EP3628512A1 (fr) * 2018-09-27 2020-04-01 Bridgestone Europe NV/SA Surveillance de la pression de gonflage de pneus
CN112937224A (zh) * 2019-12-11 2021-06-11 住友橡胶工业株式会社 充气轮胎
CN112937224B (zh) * 2019-12-11 2024-02-20 住友橡胶工业株式会社 充气轮胎
CN113043798A (zh) * 2019-12-26 2021-06-29 住友橡胶工业株式会社 充气轮胎

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JP6149607B2 (ja) 2017-06-21

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