JPWO2014119573A1 - ブレーキパッドおよびキャリパ装置 - Google Patents
ブレーキパッドおよびキャリパ装置 Download PDFInfo
- Publication number
- JPWO2014119573A1 JPWO2014119573A1 JP2014559696A JP2014559696A JPWO2014119573A1 JP WO2014119573 A1 JPWO2014119573 A1 JP WO2014119573A1 JP 2014559696 A JP2014559696 A JP 2014559696A JP 2014559696 A JP2014559696 A JP 2014559696A JP WO2014119573 A1 JPWO2014119573 A1 JP WO2014119573A1
- Authority
- JP
- Japan
- Prior art keywords
- back plate
- fiber
- brake pad
- resin
- fibers
- 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.)
- Granted
Links
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
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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
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/04—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by moving discs or pads away from one another against radial walls of drums or cylinders
- F16D55/14—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by moving discs or pads away from one another against radial walls of drums or cylinders with self-tightening action, e.g. by means of coacting helical surfaces or balls and inclined surfaces
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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
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
- F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
- F16D55/2245—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members in which the common actuating member acts on two levers carrying the braking members, e.g. tong-type brakes
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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
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
- F16D69/025—Compositions based on an organic binder
- F16D69/026—Compositions based on an organic binder containing fibres
-
- 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
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
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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
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
- F16D69/0416—Attachment of linings specially adapted for curved linings
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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
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D2069/004—Profiled friction surfaces, e.g. grooves, dimples
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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
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
- F16D2069/0425—Attachment methods or devices
- F16D2069/0441—Mechanical interlocking, e.g. roughened lining carrier, mating profiles on friction material and lining carrier
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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
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
- F16D2069/0425—Attachment methods or devices
- F16D2069/045—Bonding
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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
- F16D2200/00—Materials; Production methods therefor
- F16D2200/006—Materials; Production methods therefor containing fibres or particles
- F16D2200/0065—Inorganic, e.g. non-asbestos mineral fibres
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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
- F16D2200/00—Materials; Production methods therefor
- F16D2200/006—Materials; Production methods therefor containing fibres or particles
- F16D2200/0069—Materials; Production methods therefor containing fibres or particles being characterised by their size
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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
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0082—Production methods therefor
- F16D2200/0086—Moulding materials together by application of heat and pressure
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- Engineering & Computer Science (AREA)
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- Braking Arrangements (AREA)
- Chemical & Material Sciences (AREA)
- Reinforced Plastic Materials (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
Abstract
Description
(1) 回転するディスクを制動するブレーキパッドであって、
前記ディスク側に設けられた摩擦材と、前記摩擦材の前記ディスクと反対側に接合された裏板とを備え、
前記裏板は、前記ディスクの回転方向における前記裏板の中央部での厚さが、前記ディスクの回転方向における前記裏板の両側の縁部での厚さよりも大きいことを特徴とするブレーキパッド。
[キャリパ装置]
図1および図2は、それぞれ、本発明のキャリパ装置の一例を示す断面図である。図1および図2は、それぞれ、キャリパ装置をディスクに配置した状態を示す図である。これらのうち、図1は、ディスクの制動が解除されている状態を示すための図であり、図2は、キャリパ装置により、ディスクが制動されている状態を示すための図である。
なお、以下の説明では、図1中の上側を「上」、下側を「下」と言う。
対向型のキャリパ装置の場合には、図示しないが、ディスク200の中心線220を介して、前述した空間40、ピストン30およびブレーキパッド10を備える制御機構と同様の構成の制御機構が、ディスクの下側に対向配置(鏡像関係の配置で)されている。すなわち、対向型のキャリパ装置の場合には、ディスク200を介して、空間、ピストンおよびブレーキパッドを備える一対の制御機構が設けられる。かかる構成の対向型のキャリパ装置では、一対のブレーキパッドの双方が、キャリパ50に対して可動し、ディスク200を挟んで、ディスク200の回転を制動する。また、このような制御機構の組数(対の数)は、1組に限らず、例えば、2組、3組等、複数組であってもよい。
キャリパ装置100は、非制動時(初期状態)では、摩擦材12の下面が、ディスク200の上面と若干の隙間を隔てて離間している。
次に、本発明のキャリパ装置が備えるブレーキパッドの第1実施形態について説明する。
本実施形態において、図4に示すように、裏板11は、ディスク200の回転方向における両端(両縁部)での厚さが略等しく、この両端の厚さは、ディスク200の回転方向における略中央(中央部)の厚さよりも小さくなっている。すなわち、ディスク200の回転方向における裏板11の略中央での厚さ(図中、h2で表される厚さ)が、ディスク200の回転方向における裏板11の両端での裏板11の厚さ(図中、h1で表される厚さ)よりも大きくなっている。
換言すれば、裏板11は、図4に示すように、摩擦材12が接合される面(接合面)と反対側の面(ピストン30と当接する面)が略平坦面で構成され、接合面が摩擦材12(ディスク200)側に向かって突出する凸曲面で構成されている。すなわち、裏板11は、ディスク200の回転方向における略中央が、摩擦材12側に向かって突出している。一方、摩擦材12の裏板11と接合する面(接合面)は、裏板11の接合面の形状に対応して、ディスク200の回転方向における略中央がディスク200側に向かって凹没している。
このような裏板11と摩擦材12とは、裏板11の接合面(凸曲面)と摩擦材12の接合面とが密着した状態で接合される。かかる接合体では、裏板の接合面と摩擦材の接合面との双方が平坦面で構成される場合と比較して、裏板11と摩擦剤12との間の接触面積を増大させることができるため、裏板11と摩擦材12との接合強度を向上させることができる。さらに、ディスク200の回転方向に掛かる力に対する裏板11の耐久性を向上させることができる。また、ディスク200の回転方向における裏板11の中央部の厚さを厚くすることで、裏板11の曲げ剛性が向上する。これにより、ブレーキパッド10全体の曲げ剛性を向上させることができる。
摩擦材12は、制動時にディスク200と当接し、この当接による摩擦によって、ディスク200の回転を抑制する機能を有している。
<<裏板用組成物>>
以下、裏板用組成物を構成する各材料について詳細に説明する。
本実施形態において、裏板用組成物は、樹脂を含む。
本実施形態において、裏板用組成物は、複数本の繊維を含むが、複数本の繊維として複数本の第1の繊維を含むのが好ましく、複数本の第1の繊維と複数本の第2の繊維とを含むのがさらに好ましい。
第1の繊維の平均長さをL1[μm]とし、第2の繊維の平均長さをL2[μm]としたとき、L2/L1が0.001〜0.5の関係を満足するのが好ましく、0.01〜0.4の関係を満足するのがより好ましく、0.015〜0.3の関係を満足するのがさらに好ましい。第1の繊維の平均長さL1と、第2の繊維の平均長さL2との比率L2/L1が、前記範囲内であると、裏板用組成物は、その成形性がより向上し、裏板11は、寸法精度および機械的強度が特に高くなる。
樹脂として、例えば、フェノール樹脂を用いる場合には、硬化剤としては、2官能以上のエポキシ系化合物、イソシアネート類、および、ヘキサメチレンテトラミン等から選択して用いることができる。
次に、本発明のブレーキパッドの第2実施形態について説明する。
図6は、本発明のブレーキパッドの第2実施形態を示す断面図である。
なお、前記実施形態では、裏板11のディスク200の回転方向における両端の厚さが略等しい構成について説明したが、互いに異なっていてもよい。
また、裏板は、ディスク200の回転方向における両側の縁部が、略一定の厚さを有するような構成であってもよく、裏板11の中央に向かって、厚さが漸減するような構成であってもよい。
Claims (9)
- 回転するディスクを制動するブレーキパッドであって、
前記ディスク側に設けられた摩擦材と、前記摩擦材の前記ディスクと反対側に接合された裏板とを備え、
前記裏板は、前記ディスクの回転方向における前記裏板の中央部での厚さが、前記ディスクの回転方向における前記裏板の両側の縁部での厚さよりも大きいことを特徴とするブレーキパッド。 - 前記裏板の前記縁部での厚さの最小値をh1[mm]、前記裏板の前記中央部での厚さの最大値をh2[mm]としたとき、h2−h1<3の関係を満足する請求項1に記載のブレーキパッド。
- 前記裏板の前記縁部での厚さの最小値は、3mm〜5mmである請求項1または2に記載のブレーキパッド。
- 前記裏板の前記中央部での厚さの最大値は、4mm〜7mmである請求項1ないし3のいずれか1項に記載のブレーキパッド。
- 前記裏板は、その厚さが、各前記縁部から前記中央部に向かって、連続的に漸増する請求項1ないし4のいずれか1項に記載のブレーキパッド。
- 前記裏板は、樹脂と、複数本の繊維とを含む裏板用組成物で構成されている請求項1ないし5のいずれか1項に記載のブレーキパッド。
- 前記繊維は、ガラス繊維である請求項1ないし6のいずれか1項に記載のブレーキパッド。
- 前記樹脂は、フェノール樹脂、エポキシ樹脂、ビスマレイミド樹脂、ベンゾオキサジン樹脂、不飽和ポリエステル樹脂よりなる群から選択される少なくとも1種を含む請求項1ないし7のいずれか1項に記載のブレーキパッド。
- 請求項1ないし8のいずれか1項に記載の前記ブレーキパッドと、ディスクに向けて前記ブレーキパッドを押圧するピストンと、前記ピストンを移動可能に収納するキャリパとを備えることを特徴とするキャリパ装置。
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JPS6019830U (ja) * | 1983-07-18 | 1985-02-12 | トキコ株式会社 | デイスクブレ−キ |
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JPH09177845A (ja) * | 1995-12-28 | 1997-07-11 | Nissan Motor Co Ltd | 車両のデイスクブレーキ用パッド |
JP2012036932A (ja) * | 2010-08-04 | 2012-02-23 | Hitachi Automotive Systems Ltd | ブレーキパッド |
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EP1045749B1 (de) | 1998-01-16 | 2003-04-16 | Neopreg AG | Verfahren zum beschichten von fasern |
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JP2005351288A (ja) | 2004-06-08 | 2005-12-22 | Shimano Inc | 自転車用ディスクブレーキパッド |
US20080169161A1 (en) * | 2007-01-17 | 2008-07-17 | Jim Chern | Brake moan and groan splitter |
JP2009174568A (ja) | 2008-01-22 | 2009-08-06 | Advics Co Ltd | ディスクブレーキ用パッド |
DE102008019003A1 (de) * | 2008-04-14 | 2009-10-15 | Tmd Friction Services Gmbh | Bremsbelag mit Adapter für Scheibenbremsen |
JP2010048387A (ja) | 2008-08-25 | 2010-03-04 | Mitsubishi Plastics Inc | ブレーキパッド |
JP2013127305A (ja) | 2011-12-19 | 2013-06-27 | Toyota Motor Corp | ブレーキパッド及びディスクブレーキ装置 |
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- 2014-01-28 CN CN201480006810.6A patent/CN105026787A/zh active Pending
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5724335U (ja) * | 1980-07-17 | 1982-02-08 | ||
JPS602030U (ja) * | 1983-06-20 | 1985-01-09 | トキコ株式会社 | デイスクブレ−キ |
JPS6019830U (ja) * | 1983-07-18 | 1985-02-12 | トキコ株式会社 | デイスクブレ−キ |
JPH0256926U (ja) * | 1988-10-19 | 1990-04-24 | ||
JPH09177845A (ja) * | 1995-12-28 | 1997-07-11 | Nissan Motor Co Ltd | 車両のデイスクブレーキ用パッド |
JP2012036932A (ja) * | 2010-08-04 | 2012-02-23 | Hitachi Automotive Systems Ltd | ブレーキパッド |
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