WO2016163523A1 - 空気入りタイヤ - Google Patents
空気入りタイヤ Download PDFInfo
- Publication number
- WO2016163523A1 WO2016163523A1 PCT/JP2016/061561 JP2016061561W WO2016163523A1 WO 2016163523 A1 WO2016163523 A1 WO 2016163523A1 JP 2016061561 W JP2016061561 W JP 2016061561W WO 2016163523 A1 WO2016163523 A1 WO 2016163523A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tire
- convex portion
- pneumatic tire
- convex
- pneumatic
- Prior art date
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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
- B60C13/02—Arrangement of grooves or ribs
-
- 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
- B60C19/00—Tyre parts or constructions not otherwise provided for
- B60C19/002—Noise damping elements provided in the tyre structure or attached thereto, e.g. in the tyre interior
Definitions
- the present invention relates to a pneumatic tire.
- the protruding portion has a protruding height of the intermediate portion of 1 mm or more and 10 mm or less.
- the protruding height of the intermediate portion is less than 1 mm, it is difficult to obtain an effect of increasing the flow velocity of air flowing through the bottom of the vehicle or generating a turbulent boundary layer.
- the protruding height of the intermediate portion exceeds 10 mm, the air flow tends to increase due to an increase in the flow of air that collides with the convex portion. For this reason, in order to obtain the effect of reducing the lift and reducing the air resistance, it is preferable that the protruding height of the intermediate portion is 1 mm or more and 10 mm or less.
- the concave portion is formed, the rigidity of the convex portion is reduced, so that it is possible to suppress a decrease in riding comfort due to the tire side portion having a rigid structure by the convex portion.
- the mass of a convex part falls because the recessed part is formed, the fall of the uniformity of a tire side part can be suppressed by a convex part.
- the said effect can be improved more because the recessed part and the groove
- FIG. 9 is a cross-sectional view of the convex portion in the short direction.
- FIG. 10 is a cross-sectional view of the convex portion in the short-side direction.
- FIG. 11 is a cross-sectional view of the convex portion in the short direction.
- FIG. 12 is a cross-sectional view of the convex portion in the short direction.
- FIG. 13 is a cross-sectional view of the convex portion in the short direction.
- FIG. 14 is a cross-sectional view of the convex portion in the short-side direction.
- FIG. 15 is a cross-sectional view of the convex portion in the short-side direction.
- FIG. 16 is a cross-sectional view of the convex portion in the short direction.
- the shoulder portion 3 is a portion of the tread portion 2 on both outer sides in the tire width direction. Further, the sidewall portion 4 is exposed at the outermost side in the tire width direction of the pneumatic tire 1.
- the bead unit 5 includes a bead core 51 and a bead filler 52.
- the bead core 51 is formed by winding a bead wire, which is a steel wire, in a ring shape.
- the bead filler 52 is a rubber material disposed in a space formed by folding the end portion in the tire width direction of the carcass layer 6 at the position of the bead core 51.
- the belt reinforcing layer 8 is disposed on the outer side in the tire radial direction which is the outer periphery of the belt layer 7 and covers the belt layer 7 in the tire circumferential direction.
- the belt reinforcing layer 8 is formed by coating a plurality of cords (not shown) arranged in parallel in the tire circumferential direction ( ⁇ 5 °) in the tire width direction with a coat rubber.
- the cord is made of steel or organic fiber (polyester, rayon, nylon, etc.).
- the belt reinforcing layer 8 shown in FIG. 1 is disposed so as to cover the end of the belt layer 7 in the tire width direction.
- the configuration of the belt reinforcing layer 8 is not limited to the above, and is not clearly shown in the figure.
- the pneumatic tire 1 of the present embodiment protrudes outside the tire from the tire side surface Sa, which is the profile of the surface of the tire side portion S, in at least one tire side portion S.
- a convex portion 9 is provided.
- the convex portion 9 is made of a rubber material (may be a rubber material constituting the tire side portion S or a rubber material different from the rubber material), and extends along the tire side surface Sa of the tire side portion S. Thus, it is formed as a ridge extending across the tire circumferential direction and the tire radial direction.
- the convex portion 9 shown in each drawing is formed to be curved in a C shape in a side view of the pneumatic tire 1.
- the pneumatic tire 1 is disposed in the tire house 101 of the vehicle 100 when it is assembled in the rim 50 and mounted on the vehicle 100.
- the vehicle 100 travels in the direction Y2.
- the air flow is stagnated around the pneumatic tire 1.
- the flow which the air which goes upwards from the downward direction in the tire house 101 arises so that this stagnation may be avoided, and the lift which is the force which lifts the vehicle 100 upwards generate
- in order to avoid stagnation air swells away from the vehicle 100 on the outside of the tire house 101, resulting in air resistance.
- the convex portion 9 is disposed only on the outer side in the tire radial direction from the tire maximum width position H, the intermediate portion 9A including the maximum position hH of the protruding height h is arranged. Since the air resistance at the tire maximum width position H at which the air resistance increases by extending most in the tire width direction is reduced, the air resistance can be further reduced.
- the groove depth d1 of the groove 9E is preferably 90% or less of the protruding height h of the convex portion 9, for example.
- the triangular shape of the cross section of the short part direction of the convex part 9 in FIG. 25 is an example.
- the tests of the lift reduction performance and the air resistance reduction performance were conducted in a wind tunnel when traveling at a traveling speed equivalent to 80 km / h in a simulation of a vehicle model in which a tire model having a tire size of 195 / 65R15 was mounted on a body model of a motor-assisted passenger car.
- the aerodynamic characteristics were calculated using the fluid analysis software based on the lattice Boltzmann method based on the aerodynamic resistance coefficient, and the conventional example was set as the standard (100) based on the calculation results. Index evaluation is performed. These index evaluations indicate that the larger the numerical value, the better the lift reduction performance and the air resistance reduction performance.
- the sound pressure level reduction performance test measures the sound pressure level (sound pressure level reduction performance) of outside noise when the test tire is mounted on the test vehicle and the vehicle travels at a running speed of 80 km / h. Based on the above, index evaluation with the conventional example as the standard (100) is performed. This coefficient evaluation indicates that the larger the numerical value, the better the sound pressure level reduction performance.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Description
9 凸部
9A 中間部
9B 先端部
9E 溝
9F 凹部
S タイヤサイド部
Sa タイヤサイド面
Claims (9)
- タイヤサイド部のタイヤサイド面に沿ってタイヤ周方向およびタイヤ径方向に交差して延在する複数の凸部を備え、
前記凸部は、延在方向における中間部が前記タイヤサイド面からの突出高さの最大位置を含み、かつ前記中間部の延在方向の両端側に設けられた各先端部が前記タイヤサイド面からの突出高さの最小位置を含んでおり、タイヤ最大幅位置よりタイヤ径方向外側にのみ、少なくとも前記中間部が配置されることを特徴とする空気入りタイヤ。 - 前記凸部は、タイヤ最大幅位置よりタイヤ径方向外側に前記中間部および前記先端部が配置されていることを特徴とする請求項1に記載の空気入りタイヤ。
- タイヤ周方向に1degあたりの各前記凸部の質量のタイヤ周方向での変動量が0.1g/deg以下であることを特徴とする請求項1または2に記載の空気入りタイヤ。
- 前記凸部は、前記中間部の突出高さが1mm以上10mm以下であることを特徴とする請求項1~3のいずれか1つに記載の空気入りタイヤ。
- 前記凸部は、正規リムに組み込んで正規内圧を充填した場合の無負荷状態の子午断面において、タイヤ最大幅位置におけるタイヤ断面幅からタイヤ幅方向外側に5mm以下の範囲で突出して設けられていることを特徴とする請求項1~4のいずれか1つに記載の空気入りタイヤ。
- 前記凸部の表面に溝を形成することを特徴とする請求項1~5のいずれか1つに記載の空気入りタイヤ。
- 前記凸部の表面に凹部を形成することを特徴とする請求項1~6のいずれか1つに記載の空気入りタイヤ。
- 各前記凸部のタイヤ周方向における間隔が不均一であることを特徴とする請求項1~7のいずれか1つに記載の空気入りタイヤ。
- 車両装着時での車両内外の向きが指定されており、少なくとも車両外側となるタイヤサイド部に前記凸部が形成されていることを特徴とする請求項1~8のいずれか1つに記載の空気入りタイヤ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201680020300.3A CN107428210B (zh) | 2015-04-09 | 2016-04-08 | 充气轮胎 |
JP2017511095A JP6593437B2 (ja) | 2015-04-09 | 2016-04-08 | 空気入りタイヤ |
DE112016001636.0T DE112016001636T5 (de) | 2015-04-09 | 2016-04-08 | Luftreifen |
US15/564,423 US10850573B2 (en) | 2015-04-09 | 2016-04-08 | Pneumatic tire |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015-080266 | 2015-04-09 | ||
JP2015080266 | 2015-04-09 |
Publications (1)
Publication Number | Publication Date |
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WO2016163523A1 true WO2016163523A1 (ja) | 2016-10-13 |
Family
ID=57072108
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/061561 WO2016163523A1 (ja) | 2015-04-09 | 2016-04-08 | 空気入りタイヤ |
Country Status (5)
Country | Link |
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US (1) | US10850573B2 (ja) |
JP (1) | JP6593437B2 (ja) |
CN (1) | CN107428210B (ja) |
DE (1) | DE112016001636T5 (ja) |
WO (1) | WO2016163523A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110325379A (zh) * | 2016-12-20 | 2019-10-11 | 米其林集团总公司 | 具有能够耐受化学侵蚀的增强胎侧的轮胎 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112937225B (zh) * | 2021-04-02 | 2022-11-25 | 正新橡胶(中国)有限公司 | 一种充气轮胎和车辆 |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3568747A (en) * | 1967-04-08 | 1971-03-09 | Dunlop Co Ltd | Pneumatic tires |
JP2006256433A (ja) * | 2005-03-16 | 2006-09-28 | Yokohama Rubber Co Ltd:The | 空気入りラジアルタイヤ |
WO2007032405A1 (ja) * | 2005-09-13 | 2007-03-22 | Bridgestone Corporation | 空気入りタイヤ |
JP2007297035A (ja) * | 2006-04-05 | 2007-11-15 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ |
JP2009029383A (ja) * | 2007-07-30 | 2009-02-12 | Bridgestone Corp | 空気入りタイヤ |
WO2009084634A1 (ja) * | 2007-12-28 | 2009-07-09 | Bridgestone Corporation | 空気入りタイヤ |
JP2010260378A (ja) * | 2009-04-30 | 2010-11-18 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ |
JP2011168218A (ja) * | 2010-02-19 | 2011-09-01 | Bridgestone Corp | 新交通車両用タイヤ |
JP2013071669A (ja) * | 2011-09-28 | 2013-04-22 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ |
JP2013071634A (ja) * | 2011-09-28 | 2013-04-22 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ |
JP2014080099A (ja) * | 2012-10-16 | 2014-05-08 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ |
JP2014526416A (ja) * | 2011-09-15 | 2014-10-06 | コンパニー ゼネラール デ エタブリッスマン ミシュラン | フィンを備えた道路車両用タイヤ |
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JP2015212117A (ja) * | 2014-05-02 | 2015-11-26 | 横浜ゴム株式会社 | 空気入りタイヤ |
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JP4202169B2 (ja) * | 2003-03-28 | 2008-12-24 | 東洋ゴム工業株式会社 | 空気入りラジアルタイヤ |
EP1834812B1 (en) | 2006-03-16 | 2009-08-26 | The Yokohama Rubber Co., Ltd. | Pneumatic tire |
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KR101349040B1 (ko) | 2011-07-13 | 2014-01-09 | 한국타이어 주식회사 | 차량용 타이어의 사이드월 |
WO2014024587A1 (ja) | 2012-08-07 | 2014-02-13 | 横浜ゴム株式会社 | 空気入りタイヤ |
CA2916621A1 (en) | 2013-06-27 | 2014-12-31 | Cgg Services Sa | Instantaneous frequency modulation acquisition scheme for seismic sources |
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2016
- 2016-04-08 DE DE112016001636.0T patent/DE112016001636T5/de active Pending
- 2016-04-08 US US15/564,423 patent/US10850573B2/en active Active
- 2016-04-08 WO PCT/JP2016/061561 patent/WO2016163523A1/ja active Application Filing
- 2016-04-08 CN CN201680020300.3A patent/CN107428210B/zh active Active
- 2016-04-08 JP JP2017511095A patent/JP6593437B2/ja active Active
Patent Citations (14)
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US3568747A (en) * | 1967-04-08 | 1971-03-09 | Dunlop Co Ltd | Pneumatic tires |
JP2006256433A (ja) * | 2005-03-16 | 2006-09-28 | Yokohama Rubber Co Ltd:The | 空気入りラジアルタイヤ |
WO2007032405A1 (ja) * | 2005-09-13 | 2007-03-22 | Bridgestone Corporation | 空気入りタイヤ |
JP2007297035A (ja) * | 2006-04-05 | 2007-11-15 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ |
JP2009029383A (ja) * | 2007-07-30 | 2009-02-12 | Bridgestone Corp | 空気入りタイヤ |
WO2009084634A1 (ja) * | 2007-12-28 | 2009-07-09 | Bridgestone Corporation | 空気入りタイヤ |
JP2010260378A (ja) * | 2009-04-30 | 2010-11-18 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ |
JP2011168218A (ja) * | 2010-02-19 | 2011-09-01 | Bridgestone Corp | 新交通車両用タイヤ |
JP2014526416A (ja) * | 2011-09-15 | 2014-10-06 | コンパニー ゼネラール デ エタブリッスマン ミシュラン | フィンを備えた道路車両用タイヤ |
JP2013071669A (ja) * | 2011-09-28 | 2013-04-22 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ |
JP2013071634A (ja) * | 2011-09-28 | 2013-04-22 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ |
JP2014080099A (ja) * | 2012-10-16 | 2014-05-08 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ |
WO2014207094A1 (fr) * | 2013-06-28 | 2014-12-31 | Compagnie Generale Des Etablissements Michelin | Pneumatique a carcasse radiale ou croisee |
JP2015212117A (ja) * | 2014-05-02 | 2015-11-26 | 横浜ゴム株式会社 | 空気入りタイヤ |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110325379A (zh) * | 2016-12-20 | 2019-10-11 | 米其林集团总公司 | 具有能够耐受化学侵蚀的增强胎侧的轮胎 |
Also Published As
Publication number | Publication date |
---|---|
US20180134096A1 (en) | 2018-05-17 |
JPWO2016163523A1 (ja) | 2018-02-01 |
DE112016001636T5 (de) | 2018-01-04 |
US10850573B2 (en) | 2020-12-01 |
CN107428210B (zh) | 2019-06-07 |
JP6593437B2 (ja) | 2019-10-23 |
CN107428210A (zh) | 2017-12-01 |
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