JP4508641B2 - テンショナ - Google Patents
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- JP4508641B2 JP4508641B2 JP2003549763A JP2003549763A JP4508641B2 JP 4508641 B2 JP4508641 B2 JP 4508641B2 JP 2003549763 A JP2003549763 A JP 2003549763A JP 2003549763 A JP2003549763 A JP 2003549763A JP 4508641 B2 JP4508641 B2 JP 4508641B2
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
- F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
- F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
- F16H7/1254—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
- F16H7/1281—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially circular path
- F16H7/129—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially circular path with means for impeding reverse motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/20—Freewheels or freewheel clutches with expandable or contractable clamping ring or band
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/20—Freewheels or freewheel clutches with expandable or contractable clamping ring or band
- F16D41/206—Freewheels or freewheel clutches with expandable or contractable clamping ring or band having axially adjacent coils, e.g. helical wrap-springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
- F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
- F16H7/1209—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley with vibration damping means
- F16H7/1218—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley with vibration damping means of the dry friction type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/081—Torsion springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
- F16H2007/084—Means for varying tension of belts, ropes, or chains with vibration damping means having vibration damping characteristics dependent on the moving direction of the tensioner
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
- F16H7/0831—Means for varying tension of belts, ropes, or chains with vibration damping means of the dry friction type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
- F16H7/0834—Means for varying tension of belts, ropes, or chains with vibration damping means of the viscous friction type, e.g. viscous fluid
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Description
以下、添付図面を参照しつつ、本発明について詳細に説明する。
前述の如く、ピボットアーム320とストップスリーブ350との間に回転方向の“遊び”を提供することによって(そのためには例えば、ストップスリーブ350の軸方向舌片350aが嵌入している空洞321を、軸方向舌片350aに比べて大きくする。)、液圧装置が受ける振動の大きさを低減することができる。これによって、液圧装置の耐用年数を長くすることができる。
Claims (11)
- 車両のエンジン用のベルトのテンショナ(10)であって、
車両のエンジンに取り付けられるピボットシャフト(16)と、
前記ピボットシャフト(16)に枢動可能に取り付けられているピボットアーム(20,420)と、
前記ピボットアーム(20,420)に回転可能に支持されているプーリー(12)と、
ベルトが張られる方向へ前記ピボットアーム(20,420)を付勢するバネ(18)と、
逆転ストッパ装置(40,140,240)と、
を有し、前記逆転ストッパ装置は、一方向クラッチ部材(80,180,280,480)及び摩擦ブレーキ部材(70,170,270,470)を備え、前記ピボットアームに係合可能であり、この逆転ストッパ装置と前記ピボットアームとの間に所定の回転の遊びを提供し、前記ピボットアームが、ベルトの張り具合が最小になる位置から前記ベルトが張られる方向とは反対方向に回転することを阻止し、
前記逆転ストッパ装置の摩擦ブレーキ部材は、摩擦係合によって前記ピボットシャフトに固定された摩擦クランプ部材であり、前記逆転ストッパ装置を回転位置に据え付ける時には手作業にて前記摩擦係合に打ち勝って、ベルトの張り具合が最小になる位置にあるときのピボットアームに前記逆転ストッパ装置を係合させ、
前記逆転ストッパ装置の一方向クラッチ部材は、前記ピボットシャフトのまわりに配置されて軸方向に整列された一対の回動部材を備え、前記一対の回動部材の一方は、前記ピボットアームに係合し、前記一対の回動部材の他方は、前記摩擦クランプ部材に係合するクランプホルダであり、前記一対の回動部材の少なくとも一方は、円筒部分を備え、
前記逆転ストッパ装置の一方向クラッチ部材は、クラッチバネをさらに備え、前記クラッチバネの一方の端部は、前記少なくとも一方の前記回動部材における前記円筒形部分の上に重なり、前記クラッチバネの他方の端部は、前記回動部材の他方に取り付けられ、これによって、前記クラッチバネは、前記回動部材が互いに相対的に一方向に回転する許容し、前記ピボットアームが前記ベルトが張られる方向に自由に回転することを許容する一方、前記回動部材が互いに反対方向に回転することを阻止し、前記ピボットアームが前記ベルトが張られる方向とは反対方向に回転することを阻止することを特徴とするテンショナ。 - 前記摩擦ブレーキ部材(70,170,270,470)と前記ピボットシャフトとの間における前記摩擦係合の強さは、通常のエンジン運転条件下において前記ピボットアーム(20,420)がベルト荷重によるトルクを受けたとき、前記ベルトが張られる方向とは反対である前記方向へ前記ピボットアーム(20,420)が回転することを停止させるのに十分に大きくて、且つ、前記ピボットアーム(20,420)を手作業によって前記ベルトが張られる方向とは反対である前記方向へ回転させることができるだけ十分に小さい、ことを特徴とする請求項1に記載のテンショナ。
- 前記逆転ストッパ装置は、その摩擦ブレーキ部材が摩擦クランプ部材(270)を備え、前記ピボットアーム(20)が据付け時に手作業によって前記ベルトが張られる方向とは反対方向へ回転させられたとき、前記摩擦クランプ部材(270)が少なくとも部分的に開くように構成されていることを特徴とする請求項2に記載のテンショナ。
- 前記摩擦クランプ部材が摩擦係合によって前記ピボットシャフトに固定される固定部分は、前記ピボットシャフト(16)のうちの前記逆転ストッパ装置(40,140,240)が配置されている部分によって構成されていることを特徴とする請求項1に記載のテンショナ。
- 前記遊びは、前記エンジンの熱膨張に起因するアームの動きの回転の大きさと同一である所定の回転成分を含んでいることを特徴とする請求項1記載のテンショナ。
- 前記遊びは、前記エンジンの熱膨張に起因するアームの動きの回転の大きさ、並びに、エンジンによる前記ピボットアーム(20,420)の動的振動に起因するアームの動きの回転の大きさと同一である所定の回転成分を含んでいることを特徴とする請求項1記載のテンショナ。
- 前記逆転ストッパ装置は、その摩擦ブレーキ部材が摩擦クランプ部材(70,170,270)から構成され、
前記逆転ストッパ装置(40,140,240)は、前記ピボットシャフト(16)のまわりに配置されてなる軸方向に整列された一対の回動部材(50,150,250;60,160,260)をさらに備え、前記回動部材の一方(50,150,250)は前記ピボットアーム(20)に係合し、前記回動部材の他方(60,160,260)は前記摩擦クランプ部材(70,170,270)に係合するクランプホルダ(60,160,260)をさらに備え、前記回動部材の少なくとも一方は円筒形部分を有しており、
前記逆転ストッパ装置(40,140,240)は、その一方向クラッチ部材がクラッチバネ(80,180,280)をさらに備え、前記クラッチバネの一方の端部は、前記少なくとも一方の前記回動部材における前記円筒形部分の上に重なっていて、前記クラッチバネの他方の端部(82,182,282)は、前記回動部材の他方に取り付けられていて、これによって、前記クラッチバネ(80,180,280)は、前記回動部材が互いに相対的に一方向へ回転することを許容し、前記回動部材が互いに反対方向へ回転することを阻止することを特徴とする請求項1〜6のいずれか1項に記載のテンショナ。 - 前記クランプホルダ(260)は、上方にあるクランプスリーブ部材(260a)と、下方にあるボトムスリーブ部材(260b)とから構成されていて、前記摩擦クランプ部材(270)は、前記上方のクランプスリーブ部材と前記下方のボトムスリーブ部材との間に収容されていることを特徴とする請求項7に記載のテンショナ。
- 前記クラッチバネ(80)が有している突起(82)によって、前記ピボットアーム(20)に係合している回動部材に、クラッチバネが固定されていることを特徴とする請求項7に記載のテンショナ。
- 前記クラッチバネ(180,280)が有している突起(182,282)によって、クラッチバネが前記クランプホルダ(160,260)に固定されていることを特徴とする請求項7又は8に記載のテンショナ。
- 前記一対の回動部材(50,150,250;60,160,260)は、互いに直接的に軸方向に相互結合されていることを特徴とする請求項7〜10のいずれか1項に記載のテンショナ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US33580101P | 2001-12-05 | 2001-12-05 | |
PCT/CA2002/001854 WO2003048606A1 (en) | 2001-12-05 | 2002-12-03 | Timing belt tensioner with stops controlled by frictional brake |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005511984A JP2005511984A (ja) | 2005-04-28 |
JP4508641B2 true JP4508641B2 (ja) | 2010-07-21 |
Family
ID=23313263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2003549763A Expired - Lifetime JP4508641B2 (ja) | 2001-12-05 | 2002-12-03 | テンショナ |
Country Status (10)
Country | Link |
---|---|
US (2) | US7507172B2 (ja) |
EP (2) | EP1451486B1 (ja) |
JP (1) | JP4508641B2 (ja) |
KR (1) | KR100933816B1 (ja) |
CN (1) | CN100439758C (ja) |
AU (1) | AU2002347150A1 (ja) |
BR (1) | BR0214737B1 (ja) |
CA (1) | CA2469497C (ja) |
DE (1) | DE60225716T2 (ja) |
WO (1) | WO2003048606A1 (ja) |
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DE102010019066A1 (de) * | 2010-05-03 | 2011-11-03 | Schaeffler Technologies Gmbh & Co. Kg | Riemenspanner |
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-
2002
- 2002-12-03 EP EP02782567A patent/EP1451486B1/en not_active Expired - Lifetime
- 2002-12-03 JP JP2003549763A patent/JP4508641B2/ja not_active Expired - Lifetime
- 2002-12-03 CA CA2469497A patent/CA2469497C/en not_active Expired - Lifetime
- 2002-12-03 EP EP07004611A patent/EP1788283B1/en not_active Expired - Lifetime
- 2002-12-03 DE DE60225716T patent/DE60225716T2/de not_active Expired - Lifetime
- 2002-12-03 KR KR1020047008564A patent/KR100933816B1/ko active IP Right Grant
- 2002-12-03 BR BRPI0214737-8A patent/BR0214737B1/pt active IP Right Grant
- 2002-12-03 WO PCT/CA2002/001854 patent/WO2003048606A1/en active IP Right Grant
- 2002-12-03 US US10/497,958 patent/US7507172B2/en not_active Expired - Lifetime
- 2002-12-03 CN CNB028244214A patent/CN100439758C/zh not_active Expired - Lifetime
- 2002-12-03 AU AU2002347150A patent/AU2002347150A1/en not_active Abandoned
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WO2003048606A1 (en) | 2003-06-12 |
EP1451486A1 (en) | 2004-09-01 |
US20090176609A1 (en) | 2009-07-09 |
US8267819B2 (en) | 2012-09-18 |
BR0214737B1 (pt) | 2011-02-22 |
CN100439758C (zh) | 2008-12-03 |
BR0214737A (pt) | 2004-09-14 |
CN1599847A (zh) | 2005-03-23 |
CA2469497A1 (en) | 2003-06-12 |
US7507172B2 (en) | 2009-03-24 |
KR20050044684A (ko) | 2005-05-12 |
AU2002347150A1 (en) | 2003-06-17 |
DE60225716T2 (de) | 2009-04-30 |
US20060035740A1 (en) | 2006-02-16 |
EP1788283A2 (en) | 2007-05-23 |
EP1451486B1 (en) | 2008-03-19 |
DE60225716D1 (de) | 2008-04-30 |
EP1788283B1 (en) | 2012-01-18 |
EP1788283A3 (en) | 2009-09-02 |
CA2469497C (en) | 2010-07-20 |
JP2005511984A (ja) | 2005-04-28 |
KR100933816B1 (ko) | 2009-12-24 |
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