JP6318480B2 - 空気入りタイヤ - Google Patents
空気入りタイヤ Download PDFInfo
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- JP6318480B2 JP6318480B2 JP2013130941A JP2013130941A JP6318480B2 JP 6318480 B2 JP6318480 B2 JP 6318480B2 JP 2013130941 A JP2013130941 A JP 2013130941A JP 2013130941 A JP2013130941 A JP 2013130941A JP 6318480 B2 JP6318480 B2 JP 6318480B2
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- Prior art keywords
- tire
- rim
- point
- bead
- carcass
- 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.)
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- 239000011324 bead Substances 0.000 claims description 65
- 229920001971 elastomer Polymers 0.000 claims description 24
- 239000005060 rubber Substances 0.000 claims description 24
- 238000010276 construction Methods 0.000 claims description 16
- 238000004804 winding Methods 0.000 claims description 15
- 239000000945 filler Substances 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 description 9
- 238000011056 performance test Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 230000014509 gene expression Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
- B60C9/02—Carcasses
- B60C9/04—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
- B60C9/08—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship the cords extend transversely from bead to bead, i.e. radial ply
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/02—Seating or securing beads on rims
- B60C15/024—Bead contour, e.g. lips, 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
- B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
-
- 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
- B60C13/003—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof characterised by sidewall curvature
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/0009—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/0009—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion
- B60C15/0036—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion with high ply turn-up, i.e. folded around the bead core and terminating radially above the point of maximum section width
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/0009—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion
- B60C15/0054—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion with ply turn-up portion parallel and adjacent to carcass main portion
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
- B60C15/0603—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead characterised by features of the bead filler or apex
-
- 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
- B60C3/00—Tyres characterised by the transverse section
- B60C3/04—Tyres characterised by the transverse section characterised by the relative dimensions of the section, e.g. low profile
-
- 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
- B60C2013/005—Physical properties of the sidewall rubber
- B60C2013/007—Thickness
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/0009—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion
- B60C2015/009—Height of the carcass terminal portion defined in terms of a numerical value or ratio in proportion to section height
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
- B60C15/0603—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead characterised by features of the bead filler or apex
- B60C2015/061—Dimensions of the bead filler in terms of numerical values or ratio in proportion to section height
-
- 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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
- B60C2015/0614—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead characterised by features of the chafer or clinch portion, i.e. the part of the bead contacting the rim
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
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を示すタイヤ子午線方向の断面図である。同図は、タイヤ径方向の断面図の片側領域を示している。また、同図は、空気入りタイヤの一例として、ORタイヤ(Off the Road Tire)と呼ばれる建設車両用ラジアルタイヤを示している。
図2は、図1に記載した空気入りタイヤのビード部を示す説明図である。同図は、タイヤを規定リムに装着して50[kPa]の内圧を充填して無負荷状態としたときの、一方のビード部の拡大断面図を示している。また、同図では、符号10の仮想線が、規定リムのリムフランジ部を示している。
b=0.052×x+21.6 (2)
以上説明したように、この空気入りタイヤ1は、一対のビードコア11、11と、一対のビードコア11、11のタイヤ径方向外側にそれぞれ配置される一対のビードフィラー12、12と、一対のビードコア11、11間に架け渡されると共にビードコア11およびビードフィラー12を包み込みつつ巻き返されて係止されるカーカス層13とを備える(図1参照)。また、タイヤを規定リムに装着して50[kPa]の内圧を充填して無負荷状態としたタイヤ子午線方向の断面視にて、サイドウォール部の外表面であって規定リムのリムフランジ高さHfを基準とする1.30×Hfの位置に点Pをとり、点Pからカーカス層13の本体部131のカーカスラインに引いた法線Lの足を点Mとし、法線Lとカーカス層13の巻き返し部132のカーカスラインとの交点を点Tとする(図2参照)。このとき、点Mから点Tまでの距離a[mm]と、点Tから点Pまでの距離b[mm]と、規定荷重x[kN]とが、許容差を0[%]以上20[%]以下として、a=0.019×x+13.3およびb=0.052×x+21.6の関係を有する。
この空気入りタイヤ1は、建設車両用ラジアルタイヤを適用対象とすることが好ましい。建設車両用ラジアルタイヤは、土木建設現場などの不整地を走行する建設車両に装着されるタイヤであり、大型ダンプ車、タイヤローラ、スクレーパ、グレーダ、クレーン、ホイールローダ等の建設車両に装着される。
図3は、この発明の実施の形態にかかる空気入りタイヤの性能試験の結果を示す図表である。
図4および図5は、この発明の実施の形態にかかる空気入りタイヤの具体例を示す図表である。
Claims (1)
- 一対のビードコアと、前記一対のビードコアのタイヤ径方向外側にそれぞれ配置される一対のビードフィラーと、前記一対のビードコア間に架け渡されると共に前記ビードコアおよび前記ビードフィラーを包み込みつつ巻き返されて係止されるカーカス層と、複数のベルトプライを積層して成ると共に前記カーカス層の外周に掛け廻されて配置されるベルト層とを備える空気入りタイヤであって、
建設車両用ラジアルタイヤであり、
前記カーカス層が、スチールから成る複数のカーカスコードをコートゴムで被覆して圧延加工して構成されると共に絶対値で85[deg]以上95[deg]以下のカーカス角度を有し、
ビード部のリム嵌合面が、規定リムのリムフランジ部に対応する直線部および湾曲部を有し、
前記リム嵌合面の前記直線部が、ビードヒールからタイヤ径方向外側に向かって直線的に延びる部分であり、タイヤ赤道面に対して0[deg]〜3[deg]の範囲で傾斜し、
前記リム嵌合面の前記湾曲部が、前記直線部からタイヤ径方向外側に向かうに連れてタイヤ幅方向外側に湾曲する部分であり、前記直線部に対して所定の変曲点で連続的に接続し、
タイヤを規定リムに装着して50[kPa]の内圧を充填して無負荷状態としたタイヤ子午線方向の断面視にて、サイドウォール部の外表面であって前記規定リムのリムフランジ高さHfを基準とする1.30×Hfの位置に点Pをとり、点Pから前記カーカス層の本体部のカーカスラインに引いた法線Lの足を点Mとし、法線Lと前記カーカス層の巻き返し部のカーカスラインとの交点を点Tとするときに、
点Mから点Tまでの距離a[mm]と、点Tから点Pまでの距離b[mm]と、規定荷重x[kN]とが、許容差を0[%]以上20[%]以下として、a=0.019×x+13.3およびb=0.052×x+21.6の関係を有し、
前記ビードコアの重心位置におけるリムクッションゴムのゲージc[mm]と、規定荷重x[kN]とが、許容差を0[%]以上20[%]以下として、c=0.004×x+13.5の関係を有し、
前記規定リムのリムフランジ部に対する接触面の曲率半径Rと、前記規定リムのリムフランジ部の曲率半径R’とが、1.2≦R/R’≦1.6の関係を有し、
サイドウォール部からビード部に接続するプロファイルラインのラジアスLSRと、タイヤ断面高さSHとが、0.25≦LSR/SH≦0.65の関係を有し、且つ、
リム径の測定点を基準とする前記カーカス層の巻き上げ部の変曲点の高さHiと、リムフランジ高さHfとが、1.65≦Hi/Hfの範囲にあることを特徴とする空気入りタイヤ。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013130941A JP6318480B2 (ja) | 2013-06-21 | 2013-06-21 | 空気入りタイヤ |
PCT/JP2014/066067 WO2014203909A1 (ja) | 2013-06-21 | 2014-06-17 | 空気入りタイヤ |
AU2014282222A AU2014282222B2 (en) | 2013-06-21 | 2014-06-17 | Pneumatic tire |
CN201480032899.3A CN105377580B (zh) | 2013-06-21 | 2014-06-17 | 充气轮胎 |
US14/900,042 US10538131B2 (en) | 2013-06-21 | 2014-06-17 | Pneumatic tire |
RU2016101347A RU2616483C1 (ru) | 2013-06-21 | 2014-06-17 | Пневматическая шина |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013130941A JP6318480B2 (ja) | 2013-06-21 | 2013-06-21 | 空気入りタイヤ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2015003667A JP2015003667A (ja) | 2015-01-08 |
JP6318480B2 true JP6318480B2 (ja) | 2018-05-09 |
Family
ID=52104639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013130941A Active JP6318480B2 (ja) | 2013-06-21 | 2013-06-21 | 空気入りタイヤ |
Country Status (6)
Country | Link |
---|---|
US (1) | US10538131B2 (ja) |
JP (1) | JP6318480B2 (ja) |
CN (1) | CN105377580B (ja) |
AU (1) | AU2014282222B2 (ja) |
RU (1) | RU2616483C1 (ja) |
WO (1) | WO2014203909A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2017228601B2 (en) * | 2016-09-25 | 2023-03-23 | The Goodyear Tire & Rubber Company | Heavy duty tyre |
JP6418339B1 (ja) * | 2016-12-15 | 2018-11-07 | 横浜ゴム株式会社 | 空気入りタイヤ |
JP6311810B1 (ja) * | 2017-02-28 | 2018-04-18 | 横浜ゴム株式会社 | 空気入りタイヤ |
JP2018167772A (ja) * | 2017-03-30 | 2018-11-01 | 株式会社ブリヂストン | タイヤ |
FR3069191A1 (fr) * | 2017-07-18 | 2019-01-25 | Compagnie Generale Des Etablissements Michelin | Pneumatique dont la zone du bourrelet est allegee |
JP6954060B2 (ja) * | 2017-11-30 | 2021-10-27 | 横浜ゴム株式会社 | 空気入りタイヤ |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4724103Y1 (ja) | 1968-02-16 | 1972-07-31 | ||
JP3643191B2 (ja) * | 1995-11-29 | 2005-04-27 | 株式会社ブリヂストン | トラック及びバス用15°テーパラジアルタイヤ |
JPH02171308A (ja) * | 1988-12-24 | 1990-07-03 | Sumitomo Rubber Ind Ltd | 空気入りタイヤ |
JPH04218414A (ja) * | 1990-12-19 | 1992-08-10 | Bridgestone Corp | 空気入りタイヤ |
US5429168A (en) | 1993-11-16 | 1995-07-04 | The Goodyear Tire & Rubber Company | Off-the-road pneumatic tire with specified bead area design |
ID20252A (id) * | 1997-01-09 | 1998-11-12 | Sumitomo Rubber Ind | Ban pneumatik |
JP3836595B2 (ja) * | 1998-02-18 | 2006-10-25 | 株式会社ブリヂストン | 重荷重用空気入りラジアル・タイヤ |
JP4434766B2 (ja) * | 2004-02-02 | 2010-03-17 | 株式会社ブリヂストン | 航空機用ラジアルタイヤ |
JP3934623B2 (ja) * | 2004-03-29 | 2007-06-20 | 住友ゴム工業株式会社 | 空気入りタイヤ |
JP2006069290A (ja) * | 2004-08-31 | 2006-03-16 | Bridgestone Corp | 空気入りラジアルタイヤ |
JP2006218936A (ja) * | 2005-02-09 | 2006-08-24 | Bridgestone Corp | 重荷重用空気入りラジアルタイヤ |
JP2007210363A (ja) * | 2006-02-07 | 2007-08-23 | Bridgestone Corp | 空気入りタイヤ |
JP4724103B2 (ja) * | 2006-12-08 | 2011-07-13 | 株式会社ブリヂストン | 重荷重用空気入りラジアルタイヤ |
FR2952589B1 (fr) | 2009-11-13 | 2011-11-11 | Michelin Soc Tech | Bourrelet de pneu pour vehicule petit poids lourd. |
JP2011207319A (ja) * | 2010-03-29 | 2011-10-20 | Bridgestone Corp | 空気入りタイヤ |
JP5671546B2 (ja) | 2010-09-16 | 2015-02-18 | 株式会社ブリヂストン | 空気入りタイヤ |
-
2013
- 2013-06-21 JP JP2013130941A patent/JP6318480B2/ja active Active
-
2014
- 2014-06-17 AU AU2014282222A patent/AU2014282222B2/en active Active
- 2014-06-17 RU RU2016101347A patent/RU2616483C1/ru active
- 2014-06-17 CN CN201480032899.3A patent/CN105377580B/zh active Active
- 2014-06-17 US US14/900,042 patent/US10538131B2/en active Active
- 2014-06-17 WO PCT/JP2014/066067 patent/WO2014203909A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2014203909A1 (ja) | 2014-12-24 |
CN105377580B (zh) | 2017-06-30 |
JP2015003667A (ja) | 2015-01-08 |
AU2014282222B2 (en) | 2016-11-17 |
CN105377580A (zh) | 2016-03-02 |
AU2014282222A1 (en) | 2015-12-24 |
US20160137009A1 (en) | 2016-05-19 |
US10538131B2 (en) | 2020-01-21 |
RU2616483C1 (ru) | 2017-04-17 |
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