JP5260221B2 - 空気入りタイヤ - Google Patents
空気入りタイヤ Download PDFInfo
- Publication number
- JP5260221B2 JP5260221B2 JP2008258624A JP2008258624A JP5260221B2 JP 5260221 B2 JP5260221 B2 JP 5260221B2 JP 2008258624 A JP2008258624 A JP 2008258624A JP 2008258624 A JP2008258624 A JP 2008258624A JP 5260221 B2 JP5260221 B2 JP 5260221B2
- Authority
- JP
- Japan
- Prior art keywords
- belt
- tire
- region
- cord
- mediate
- 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.)
- Expired - Fee Related
Links
Images
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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
-
- 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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
- B60C2009/2012—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel with particular configuration of the belt cords in the respective belt layers
- B60C2009/2025—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel with particular configuration of the belt cords in the respective belt layers with angle different or variable in the same layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T152/00—Resilient tires and wheels
- Y10T152/10—Tires, resilient
- Y10T152/10495—Pneumatic tire or inner tube
- Y10T152/10765—Characterized by belt or breaker structure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T152/00—Resilient tires and wheels
- Y10T152/10—Tires, resilient
- Y10T152/10495—Pneumatic tire or inner tube
- Y10T152/10765—Characterized by belt or breaker structure
- Y10T152/10792—Structure where each bias angle reinforcing cord ply has no opposingly angled ply
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T152/00—Resilient tires and wheels
- Y10T152/10—Tires, resilient
- Y10T152/10495—Pneumatic tire or inner tube
- Y10T152/10765—Characterized by belt or breaker structure
- Y10T152/10801—Structure made up of two or more sets of plies wherein the reinforcing cords in one set lie in a different angular position relative to those in other sets
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T152/00—Resilient tires and wheels
- Y10T152/10—Tires, resilient
- Y10T152/10495—Pneumatic tire or inner tube
- Y10T152/10765—Characterized by belt or breaker structure
- Y10T152/1081—Breaker or belt characterized by the chemical composition or physical properties of elastomer or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Description
サイズ445/50R22.5のタイヤに対し、リム寄せ、新品INF及び成長後INFの3つの状態における内径を計測し、各状態間における内面状態を評価した。内径の計測位置は、タイヤ赤道線からベルトの端部にわたってタイヤ幅方向に10mm間隔で設定した。後掲する表1及び図5では、リム寄せ時から成長後INF時における内面変化量(径成長量)を載せている。但し、表1では各領域の代表位置における値を示しており、センター、メディエイト、ショルダーの各領域の代表位置は、それぞれベルト半幅に対するタイヤ赤道線からの距離が0、78、100%となる位置に設定している。
サイズ445/50R22.5のタイヤを用いて、ECE54の耐久試験に準拠したドラム走行を実施し、ベルトに故障が発生するまでの走行距離を評価した。従来例の結果を100として指数で示し、数値が大きいほどベルト耐久性が良好であることを示す。各例の評価結果を表1に示す。
4 カーカス
5 ベルト
5c コード
C タイヤ赤道線
Ce センター領域
Me メディエイト領域
Sh ショルダー領域
W ベルト幅
Claims (4)
- タイヤ周方向に対してコードが傾斜するように配設されたベルトを備える加硫成形後の空気入りタイヤにおいて、
タイヤ赤道線を中心にしてベルト幅の50〜80%となる領域をメディエイト領域、前記メディエイト領域よりもタイヤ幅方向内側の領域をセンター領域、前記メディエイト領域よりもタイヤ幅方向外側の領域をショルダー領域とし、
前記ベルトのタイヤ周方向に対するコード角度に関して、前記メディエイト領域におけるコード角度をθm、前記センター領域におけるコード角度をθc、前記ショルダー領域におけるコード角度をθsとするとき、
θc>θs>θmの関係を満たすコード角度の設定が、前記ベルトを構成する複数のベルトプライの全て、或いは、前記ベルトを構成する4枚のベルトプライのうち2枚目と3枚目に採用されていることを特徴とする空気入りタイヤ - θc−θm≦5°の関係を満たしつつ、前記メディエイト領域から前記センター領域に向かって前記ベルトのコード角度を徐々に変化させている請求項1記載の空気入りタイヤ。
- θs−θm≦3°の関係を満たしつつ、前記メディエイト領域から前記ショルダー領域に向かって前記ベルトのコード角度を徐々に変化させている請求項1又は2記載の空気入りタイヤ。
- 扁平率が70%以下である請求項1〜3いずれか1項に記載の空気入りタイヤ。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008258624A JP5260221B2 (ja) | 2008-10-03 | 2008-10-03 | 空気入りタイヤ |
US12/561,292 US8215355B2 (en) | 2008-10-03 | 2009-09-17 | Pneumatic tire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008258624A JP5260221B2 (ja) | 2008-10-03 | 2008-10-03 | 空気入りタイヤ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010089542A JP2010089542A (ja) | 2010-04-22 |
JP5260221B2 true JP5260221B2 (ja) | 2013-08-14 |
Family
ID=42074851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008258624A Expired - Fee Related JP5260221B2 (ja) | 2008-10-03 | 2008-10-03 | 空気入りタイヤ |
Country Status (2)
Country | Link |
---|---|
US (1) | US8215355B2 (ja) |
JP (1) | JP5260221B2 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5543834B2 (ja) * | 2010-04-23 | 2014-07-09 | 東洋ゴム工業株式会社 | 空気入りタイヤ |
JP6720539B2 (ja) * | 2016-01-13 | 2020-07-08 | 住友ゴム工業株式会社 | 空気入りタイヤ |
JP2018075898A (ja) * | 2016-11-08 | 2018-05-17 | 東洋ゴム工業株式会社 | 空気入りタイヤ |
JP6989356B2 (ja) * | 2017-11-09 | 2022-01-05 | Toyo Tire株式会社 | 空気入りタイヤ |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5747203A (en) * | 1980-09-05 | 1982-03-18 | Bridgestone Corp | Pneumatic flat radial tire for heavy load |
JPH01164605A (ja) * | 1987-12-21 | 1989-06-28 | Yokohama Rubber Co Ltd:The | 重荷重用空気入りラジアルタイヤ |
JPH0648111A (ja) * | 1992-07-27 | 1994-02-22 | Toyo Tire & Rubber Co Ltd | ラジアルタイヤ |
JP3466703B2 (ja) * | 1994-05-18 | 2003-11-17 | 株式会社ブリヂストン | 乗用車用空気入りタイヤ |
JP3378815B2 (ja) * | 1998-12-10 | 2003-02-17 | 住友ゴム工業株式会社 | 重荷重用タイヤ |
JP2003048111A (ja) | 2001-08-07 | 2003-02-18 | Osaka Gas Co Ltd | 管端開先加工機及び管端開先加工方法 |
JP2003154809A (ja) * | 2001-11-21 | 2003-05-27 | Bridgestone Corp | 空気入りタイヤ及び空気入りタイヤの製造方法 |
JP2004203298A (ja) * | 2002-12-26 | 2004-07-22 | Bridgestone Corp | 空気入りタイヤ |
JP2006306151A (ja) * | 2005-04-26 | 2006-11-09 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ |
JP2007084035A (ja) * | 2005-08-23 | 2007-04-05 | Toyo Tire & Rubber Co Ltd | 空気入りタイヤ及びその製造方法 |
CN101024368B (zh) | 2006-02-22 | 2010-05-26 | 东洋橡胶工业株式会社 | 充气轮胎及其制造方法 |
-
2008
- 2008-10-03 JP JP2008258624A patent/JP5260221B2/ja not_active Expired - Fee Related
-
2009
- 2009-09-17 US US12/561,292 patent/US8215355B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP2010089542A (ja) | 2010-04-22 |
US20100084068A1 (en) | 2010-04-08 |
US8215355B2 (en) | 2012-07-10 |
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