JP5041104B1 - 空気入りタイヤ - Google Patents
空気入りタイヤ Download PDFInfo
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- JP5041104B1 JP5041104B1 JP2011542385A JP2011542385A JP5041104B1 JP 5041104 B1 JP5041104 B1 JP 5041104B1 JP 2011542385 A JP2011542385 A JP 2011542385A JP 2011542385 A JP2011542385 A JP 2011542385A JP 5041104 B1 JP5041104 B1 JP 5041104B1
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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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
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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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/28—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers characterised by the belt or breaker dimensions or curvature relative to carcass
-
- 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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
-
- 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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/04—Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag
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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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/04—Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag
- B60C11/042—Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag further characterised by the groove cross-section
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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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
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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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
- B60C11/1307—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls
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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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
- B60C11/1307—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls
- B60C11/1315—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls having variable inclination angles, e.g. warped groove walls
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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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
-
- 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
- B60C9/2003—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords
- B60C9/2006—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords consisting of steel cord plies only
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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
- 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
- B60C9/22—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
- B60C2009/2252—Physical properties or dimension of the zero degree ply cords
- B60C2009/2266—Density of the cords in width direction
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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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0341—Circumferential grooves
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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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0386—Continuous ribs
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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
- B60C2200/00—Tyres specially adapted for particular applications
- B60C2200/06—Tyres specially adapted for particular applications for heavy duty vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
【選択図】図2
Description
図1は、この発明の実施の形態にかかる空気入りタイヤ1を示すタイヤ子午線方向の断面図である。同図は、空気入りタイヤ1の一例として、長距離輸送用のトラック、バスなどに装着される重荷重用ラジアルタイヤを示している。
また、この空気入りタイヤ1では、周方向補強層145を構成するベルトコードがスチールワイヤであり、周方向補強層145が17[本/50mm]以上30[本/50mm]以下のエンド数を有することが好ましい。また、ベルトコードの外径が、1.2[mm]以上2.2[mm]以下の範囲内にあることが好ましい。なお、ベルトコードが縒り合わされた複数本のコードから成る構成では、ベルトコードの外径がベルトコードの外接円の直径として測定される。
ここで、ベルト層が周方向補強層を有する構成では、周方向補強層のタガ効果により、接地長が短くなり、接地圧が大きくなる。タイヤ転動時には、周方向補強層の配置領域における接地圧がさらに大きくなる。すると、周方向補強層の配置領域にある陸部間で偏摩耗が発生するという課題がある。
また、この空気入りタイヤ1では、第一陸部31のタイヤ幅方向外側のエッジ部の溝壁角度θ1と、第二陸部33のタイヤ幅方向内側のエッジ部の溝壁角度θ2とが、θ1>θ2の関係を有する(図2参照)。すなわち、トレッド部中央にある第一陸部31の溝壁角度θ1が、周方向補強層145の端部にある第二陸部33の溝壁角度θ2よりも大きい。
以上説明したように、この空気入りタイヤ1は、周方向補強層145を含むベルト層14を備える(図1および図2参照)。また、空気入りタイヤ1は、複数の周方向主溝21〜23と、これらの周方向主溝21〜23に区画されて成る複数の陸部31〜34とをトレッド部に備える。また、タイヤ赤道面CL上にある陸部31(あるいは、タイヤ赤道面CLを挟む左右の陸部31)の幅W1と、周方向補強層の端部にある第二陸部の幅W2とが、1.05≦W1/W2≦1.30の関係を有する。
なお、この空気入りタイヤ1は、重荷重用タイヤに適用されることが好ましい。重荷重用タイヤでは、乗用車用タイヤと比較して、タイヤ使用時の負荷が大きい。すると、周方向補強層の配置領域と、周方向補強層よりもタイヤ幅方向外側の領域との径差が大きくなりショルダー陸部に偏摩耗が生じ易い。そこで、かかる重荷重用タイヤを適用対象とすることにより、耐偏摩耗抑制効果を顕著に得られる。
Claims (10)
- 周方向補強層を含むベルト層を備えると共に、複数の周方向主溝と、前記周方向主溝に区画されて成る複数の陸部とをトレッド部に備える空気入りタイヤであって、
タイヤ赤道面上にある前記陸部あるいはタイヤ赤道面を挟む左右の前記陸部を第一陸部と呼ぶと共に、前記周方向補強層上にある前記陸部のうちタイヤ幅方向の最も外側にある前記陸部を第二陸部と呼ぶときに、
前記第一陸部の幅W1と、前記第二陸部の幅W2とが、1.05≦W1/W2≦1.30の関係を有し、且つ、
前記第一陸部のタイヤ幅方向外側のエッジ部の溝壁角度θ1と、前記第二陸部のタイヤ幅方向内側のエッジ部の溝壁角度θ2とが、1[deg]≦θ1−θ2≦20[deg]の関係を有することを特徴とする空気入りタイヤ。 - 前記第二陸部よりもタイヤ幅方向外側にある前記陸部を第三陸部と呼ぶときに、
前記第二陸部の幅W2と、前記第三陸部の幅W3とが、1.15≦W3/W2≦1.50の関係を有する請求項1に記載の空気入りタイヤ。 - 前記ベルト層が、高角度ベルトと、前記高角度ベルトのタイヤ径方向外側に配置される前記一対の交差ベルトと、前記一対の交差ベルトのタイヤ径方向外側に配置されるベルトカバーと、前記一対の交差ベルトの間、前記一対の交差ベルトのタイヤ径方向内側あるいは前記高角度ベルトのタイヤ径方向内側に配置される前記周方向補強層とから成る請求項1または2に記載の空気入りタイヤ。
- 前記周方向補強層を構成するベルトコードがスチールワイヤであり、前記周方向補強層が17[本/50mm]以上30[本/50mm]以下のエンド数を有する請求項1〜3のいずれか一つに記載の空気入りタイヤ。
- 前記周方向補強層を構成するベルトコードの部材時における引張り荷重100Nから300N時の伸びが1.0[%]以上2.5[%]以下である請求項1〜4のいずれか一つに記載の空気入りタイヤ。
- 前記周方向補強層を構成するベルトコードのタイヤ時における引張り荷重500Nから1000N時の伸びが0.5[%]以上2.0[%]以下である請求項1〜5のいずれか一つに記載の空気入りタイヤ。
- 前記周方向補強層が、前記一対の交差ベルトのうち幅狭な交差ベルトの左右のエッジ部よりもタイヤ幅方向内側に配置され、且つ、
前記幅狭な交差ベルトの幅Wと前記周方向補強層のエッジ部から前記幅狭な交差ベルトのエッジ部までの距離Sとが、0.03≦S/Wの範囲にある請求項1〜6のいずれか一つに記載の空気入りタイヤ。 - 前記周方向補強層が、前記一対の交差ベルトのうち幅狭な交差ベルトの左右のエッジ部よりもタイヤ幅方向内側に配置され、且つ、
前記幅狭な交差ベルトの幅Wと前記周方向補強層の幅Wsとが、0.60≦Ws/Wの範囲内にある請求項1〜7のいずれか一つに記載の空気入りタイヤ。 - 前記周方向補強層の幅Wsが、タイヤ展開幅TDWに対して、0.65≦Ws/TDW≦0.80の範囲内にある請求項1〜8のいずれか一つに記載の空気入りタイヤ。
- 偏平率70[%]以下のタイヤに適用される請求項1〜9のいずれか一つに記載の空気入りタイヤ。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2011/071687 WO2013042258A1 (ja) | 2011-09-22 | 2011-09-22 | 空気入りタイヤ |
Publications (2)
Publication Number | Publication Date |
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JP5041104B1 true JP5041104B1 (ja) | 2012-10-03 |
JPWO2013042258A1 JPWO2013042258A1 (ja) | 2015-03-26 |
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JP2011542385A Active JP5041104B1 (ja) | 2011-09-22 | 2011-09-22 | 空気入りタイヤ |
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US (1) | US9045004B2 (ja) |
JP (1) | JP5041104B1 (ja) |
KR (1) | KR101292532B1 (ja) |
CN (1) | CN103813913B (ja) |
DE (1) | DE112011105656B4 (ja) |
WO (1) | WO2013042258A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019156312A (ja) * | 2018-03-15 | 2019-09-19 | 横浜ゴム株式会社 | 空気入りタイヤ |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10556466B2 (en) * | 2013-10-29 | 2020-02-11 | Bridgestone Corporation | Tire |
US10077872B2 (en) | 2014-11-03 | 2018-09-18 | Gilbarco Inc. | Compressed gas filling method and system |
US10088109B2 (en) | 2014-11-03 | 2018-10-02 | Gilbarco Inc. | Compressed gas filling method and system |
JP6518492B2 (ja) * | 2015-04-07 | 2019-05-22 | 株式会社ブリヂストン | 空気入りタイヤ |
WO2016200507A1 (en) * | 2015-06-11 | 2016-12-15 | Bridgestone Americas Tire Operations, Llc | Belt assemblies coated with a magnetic rubber composition and tires including the same |
FR3051144B1 (fr) * | 2016-05-10 | 2018-04-27 | Compagnie Generale Des Etablissements Michelin | Pneumatique a couches de travail comprenant des monofilaments et a bande de roulement rainuree |
FR3051143A1 (fr) * | 2016-05-11 | 2017-11-17 | Michelin & Cie | Pneumatique a couches de travail comprenant des monofilaments pour eviter la fissuration |
JP6891515B2 (ja) * | 2017-01-31 | 2021-06-18 | 住友ゴム工業株式会社 | タイヤ |
JP6844377B2 (ja) * | 2017-03-30 | 2021-03-17 | 住友ゴム工業株式会社 | タイヤ |
FR3067287B1 (fr) * | 2017-06-08 | 2020-09-18 | Michelin & Cie | Pneumatique comprenant une architecture et une sculpture optimisees |
JP2019131082A (ja) * | 2018-01-31 | 2019-08-08 | Toyo Tire株式会社 | 空気入りタイヤ |
JP7340999B2 (ja) | 2019-09-06 | 2023-09-08 | Toyo Tire株式会社 | 非空気圧タイヤ |
KR102521630B1 (ko) * | 2021-01-04 | 2023-04-14 | 한국타이어앤테크놀로지 주식회사 | 중하중용 타이어 |
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2011
- 2011-09-22 CN CN201180073531.8A patent/CN103813913B/zh active Active
- 2011-09-22 JP JP2011542385A patent/JP5041104B1/ja active Active
- 2011-09-22 KR KR1020137006966A patent/KR101292532B1/ko active IP Right Grant
- 2011-09-22 WO PCT/JP2011/071687 patent/WO2013042258A1/ja active Application Filing
- 2011-09-22 US US14/346,150 patent/US9045004B2/en active Active
- 2011-09-22 DE DE112011105656.7T patent/DE112011105656B4/de active Active
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JP2009073337A (ja) * | 2007-09-20 | 2009-04-09 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ |
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Cited By (2)
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DE112011105656B4 (de) | 2016-02-18 |
CN103813913A (zh) | 2014-05-21 |
CN103813913B (zh) | 2015-06-24 |
KR20130042031A (ko) | 2013-04-25 |
DE112011105656T5 (de) | 2014-08-21 |
KR101292532B1 (ko) | 2013-08-12 |
US20140311642A1 (en) | 2014-10-23 |
JPWO2013042258A1 (ja) | 2015-03-26 |
WO2013042258A1 (ja) | 2013-03-28 |
US9045004B2 (en) | 2015-06-02 |
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