JP5478472B2 - ブッシュ・ブラケット一体スタビライザーバー - Google Patents
ブッシュ・ブラケット一体スタビライザーバー Download PDFInfo
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- JP5478472B2 JP5478472B2 JP2010272759A JP2010272759A JP5478472B2 JP 5478472 B2 JP5478472 B2 JP 5478472B2 JP 2010272759 A JP2010272759 A JP 2010272759A JP 2010272759 A JP2010272759 A JP 2010272759A JP 5478472 B2 JP5478472 B2 JP 5478472B2
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- stabilizer bar
- rubber
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Classifications
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- B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
- B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
- B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
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- B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
- B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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- C—CHEMISTRY; METALLURGY
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/16—Halogen-containing compounds
Description
特許文献1は、スタビライザーバーおよびブラケットを金型内に設置し、ゴムブッシュの加硫成型と同時に接着を行う技術を開示している。しかし、金型内に金属製のスタビライザーバーおよびブラケットを設置するため、金型には強度および精度が要求されるうえに、金型の耐久性も低下する。また、通常、スタビライザーバーは長さが1m程度あるため、金型などを含む設備が大型化し、多大なコストがかかるという問題がある。さらに、加硫接着後にスタビライザーバーなどに塗装を施すため、ゴムブッシュとスタビライザーバーとの間などに塗装不良を生じやすく、信頼性の低下を招く。しかも、通常、スタビライザーバーの塗装に用いられる粉体塗装、カチオン塗装は、乾燥(硬化)に高温、長時間の処理を必要とするため、加硫接着されたゴムブッシュの熱劣化を生じる可能性も問題になる。
特許文献3は、(1)の方法によるコスト上昇を抑える方策として、加硫済みのゴムに対し加硫接着を行う方法を開示している。この方法では、加硫済みゴムを用い、(1)に挙げた設備の大型化によるコスト増などのデメリットを解消している。しかし、開示された内容に基づき同一条件(10%圧縮、160℃、60分加熱)で試作を行ったところ、熱劣化によるゴムブッシュの大幅な強度低下が確認され、ゴムブッシュの長期信頼性の点で問題があった。また、特許文献3では、ブッシュとブラケットを接着・固着していないため、この部分で発生する異音や異物の侵入による磨耗、折損の問題を解決できない。
特許文献4は、熱硬化性接着剤を用いる方法を開示している。この方法は、塗装工程における高温塗装処理(130〜200℃、20分)を利用して接着剤を硬化させている。しかし、この方法でも、加硫済みのゴムブッシュを高温に長時間さらすことによる熱劣化を避けられない。また、この方法もスタビライザーバーとブッシュとを接着しているだけであり、ブッシュとブラケットとを接着していないため、この部分への異物の侵入による異音の発生や磨耗、破損を防げない。さらに、未塗装のスタビライザーバーにゴムブッシュを接着してから塗装を行うため、スタビライザーバーとゴムブッシュとの境界において、未塗装部が残るなどの塗装不良が発生し、塗装不良部からの腐食が進行し、長期間使用の際、スタビライザーバーが折損するなどの問題があった。
特許文献7は、塗装済みスタビライザーバーに対し、塩素化処理を行ったゴムブッシュを、熱硬化性接着剤で接着する方法を開示している。この方法は、塩素化処理を行うことでゴムブッシュの接着力を向上させていると考えられる。しかし、開示されている情報を基に試作した結果、塩素化処理によりゴム表面が粗化され、アンカー効果によりいくらかの接着力の向上は確認されたが、接着剤だけでは加硫接着の接着強度には大きく劣り、ゴム破断には至らないことが確認できている。また、この方法でもブッシュとブラケットをクランプにより固定しているだけであるため、この部分で発生する異音や異物の侵入による磨耗、折損の問題には対応できない。
第1の鋼材を用意し、その表面をアミン系硬化エポキシ塗料で塗装した。第2の鋼材を用意し、その表面をアミン含有カチオン電着塗料で塗装した。また、ショア硬度Hs60のディスク状天然ゴムを用意した。これらの部材の表面を、5%トリクロロイソシアヌル酸の酢酸エチル溶液で表面処理して表面処理層を形成した。次に、これらをビスフェノールF型エポキシ樹脂であるエピクロンEXA835(DIC社製の商品名)100部および硬化剤としてフジキュアーFXR1000(冨士化成工業社製の商品名)20部を含む熱硬化性エポキシ接着剤により接着して接着剤層を形成した。こうして図2に示すテストピースを作製した。
ディスク状の天然ゴムとしてショア硬度Hs85のものを用いた。その他の条件は、実施例1と同一にしてテストピースを作製した。
ディスク状の天然ゴムとしてショア硬度Hs55のものを用いた。その他の条件は、実施例1と同一にしてテストピースを作製した。
エポキシ接着剤の硬化剤を有機ヒドラジド系であるアミキュアーPN23(味の素社製)に代えた以外は実施例1と同一の条件でテストピースを作製した。混合比は、エポキシ樹脂100部、硬化剤30部とした。
エポキシ樹脂および硬化剤を、市販のエポキシ系接着剤であるFosur320/322(LORD社製)に代えた以外は実施例1と同一の条件でテストピースを作製した。硬化剤はアミン系のものである。混合比は、エポキシ樹脂100部、硬化剤100部である。
天然ゴムを表面処理する前に、接着部をJIS R6010における粒度P150を有する研磨紙を用いて、表面を粗化した後、表面処理を行った。その他の条件は実施例1と同一にしてテストピースを作製した。
第1の鋼材および第2の鋼材の塗装(アミン系硬化エポキシ塗料およびアミン含有カチオン電着塗料)を行わず、鋼材表面に表面処理を施し、その他の条件は実施例1と同一にしてテストピースを作製した。
第1の鋼材の表面をアミン系硬化エポキシ塗料で塗装したが表面処理を施さなかった。第2の鋼材の表面をアミン含有カチオン電着塗料で塗装したが表面処理を施さなかった。その他の条件は実施例1と同一にしてテストピースを作製した。
ディスク状天然ゴムに表面処理を施さなかった。その他の条件は実施例1と同一にしてテストピースを作製した。
エポキシ接着剤の硬化剤を酸無水物系硬化剤であるエピクロンB570(日立化成社製)に代え、硬化促進剤としてジメチルベンジルアミンを用いた以外は実施例1と同一の条件でテストピースを作製した。混合比は、エポキシ樹脂100部、硬化剤80部、硬化促進剤0.8部とした。
エポキシ接着剤の硬化剤をポリメルカプタン系硬化剤であるEH317(アデカ社製)に代えた以外は実施例1と同一の条件でテストピースを作製した。混合比はエポキシ樹脂100部、硬化剤60部とした。
未塗装の鋼材に対し、未加硫の天然ゴムを用いて、加硫接着を行って、テストピースを作製した。6
テストピースの引っ張り試験を行った結果、ゴム破断し、強度は65MPaであった。ブッシュ・ブラケット一体スタビライザーバーを試作してねじ切り試験を行った結果、ゴム内部で破断し、強度は149N・mであった。
Claims (4)
- スタビライザーバーと、前記スタビライザーバーの外周に装着されたゴムブッシュと、前記ゴムブッシュの外周に設けられ、前記ゴムブッシュを介して前記スタビライザーバーを車体の底部に取付けるためのブラケットとを具備し、
前記スタビライザーバーはアミン系硬化エポキシ塗料またはアミン含有カチオン塗料および前記塗料上にハロゲンドナー系表面処理剤を含む表面処理層を有し、前記ゴムブッシュは内表面にハロゲンドナー系表面処理剤を含む表面処理層を有し、前記スタビライザーバーと前記ゴムブッシュとの間にそれぞれの表面処理層を介して、アミン系または有機ヒドラジド系硬化剤およびエポキシ樹脂を含む接着剤層が形成されていることを特徴とするブッシュ・ブラケット一体型スタビライザーバー。 - 前記ブラケットは内表面にアミン系硬化エポキシ塗料またはアミン含有カチオン塗料および前記塗料上にハロゲンドナー系表面処理剤を含む表面処理層を有し、前記ゴムブッシュは外表面にハロゲンドナー系表面処理剤を含む表面処理層を有し、前記ブラケットと前記ゴムブッシュとの間にそれぞれの表面処理層を介して、アミン系または有機ヒドラジド系硬化剤およびエポキシ樹脂を含む接着剤層が形成されていることを特徴とする請求項1に記載のブッシュ・ブラケット一体型スタビライザーバー。
- 前記ハロゲンドナー系表面処理剤はトリクロロイソシアヌル酸を含むことを特徴とする請求項1または2に記載のブッシュ・ブラケット一体スタビライザーバー。
- 前記接着剤層が形成されている前記ゴムブッシュの表面が粗面化されていることを特徴とする請求項1または2に記載のブッシュ・ブラケット一体スタビライザーバー。
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JP2010272759A JP5478472B2 (ja) | 2010-12-07 | 2010-12-07 | ブッシュ・ブラケット一体スタビライザーバー |
MX2013006380A MX345273B (es) | 2010-12-07 | 2011-12-07 | Barra estabilizadora integrada con buje y ménsula. |
KR1020137014496A KR101423015B1 (ko) | 2010-12-07 | 2011-12-07 | 부시·브래킷 일체 스태빌라이저 바 |
EP11846567.3A EP2650150B1 (en) | 2010-12-07 | 2011-12-07 | Bush- and bracket-integrated stabilizer bar |
ES11846567.3T ES2552464T3 (es) | 2010-12-07 | 2011-12-07 | Barra estabilizadora con cojinete y soporte integrados |
PCT/JP2011/078297 WO2012077710A1 (ja) | 2010-12-07 | 2011-12-07 | ブッシュ・ブラケット一体スタビライザーバー |
CN201180058789.0A CN103249580B (zh) | 2010-12-07 | 2011-12-07 | 集成了衬套、支架的横向稳定杆 |
US13/911,934 US8613460B2 (en) | 2010-12-07 | 2013-06-06 | Bush- and bracket-integrated stabilizer bar |
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