JP6594976B2 - Vehicle disc brake - Google Patents

Vehicle disc brake Download PDF

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Publication number
JP6594976B2
JP6594976B2 JP2017523707A JP2017523707A JP6594976B2 JP 6594976 B2 JP6594976 B2 JP 6594976B2 JP 2017523707 A JP2017523707 A JP 2017523707A JP 2017523707 A JP2017523707 A JP 2017523707A JP 6594976 B2 JP6594976 B2 JP 6594976B2
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disk
disc
friction pad
caliper body
caliper
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JPWO2016199880A1 (en
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大樹 熱田
小林　　直樹
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Nissin Kogyo Co Ltd
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Nissin Kogyo Co Ltd
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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
    • F16D55/225—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 the braking members being brake pads
    • F16D55/226—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 the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
    • F16D55/2265—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 the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing
    • F16D55/227—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 the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing by two or more pins
    • 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
    • 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
    • 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
    • F16D65/095—Pivots or supporting members therefor

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Description

本発明は、自動車や自動二輪車等の車両に用いられる車両用ディスクブレーキに関し、詳しくは、ディスクロータを跨いでディスク軸方向に懸架されるハンガーピンで一対の摩擦パッドを吊持した車両用ディスクブレーキに関する。   The present invention relates to a vehicle disc brake used in vehicles such as automobiles and motorcycles, and more specifically, a vehicle disc brake in which a pair of friction pads are suspended by a hanger pin suspended across a disc rotor in a disc axial direction. About.

従来、ピンスライド型のキャリパボディを用いた車両用ディスクブレーキにあっては、キャリパボディの作用部と反作用部との間に、一対の摩擦パッドをディスクロータを挟んで対向配置し、該摩擦パッドの裏板のディスク外周側に一対の吊下げ部を突設し、この吊下げ部を作用部と反作用部とに亘ってディスク軸方向に架け渡される一対のハンガーピンにそれぞれ吊持させたものがあった（例えば、特許文献１参照。）。しかし、特許文献１のようなものでは、２本のハンガーピンがキャリパボディの内側に配置されていることから、摩擦パッド及びキャリパボディを車体に組み付けた状態で、摩擦パッドの交換を行うことができず、摩擦パッドの交換に手間が掛かっていた。   2. Description of the Related Art Conventionally, in a vehicle disc brake using a pin slide type caliper body, a pair of friction pads are disposed opposite each other with a disc rotor interposed between an action portion and a reaction portion of the caliper body. A pair of hanging parts projecting from the outer peripheral side of the disk of the back plate, and the hanging parts are respectively suspended by a pair of hanger pins spanning the action part and the reaction part in the disk axial direction. (For example, see Patent Document 1). However, in the thing like patent document 1, since two hanger pins are arrange | positioned inside a caliper body, a friction pad can be replaced | exchanged in the state which assembled | attached the friction pad and the caliper body to the vehicle body. It was not possible, and it took time to replace the friction pads.

このため、摩擦パッドの吊下げ片を、キャリパボディのブリッジ部のディスク回入側へ突出させて、前記吊下げ片を、作用部と反作用部とに亘ってディスク軸方向に架け渡される１本のハンガーピンに吊持させたものがあった（例えば、特許文献２参照。）。   For this reason, the suspension piece of the friction pad is projected to the disk entry side of the bridge part of the caliper body, and the suspension piece is spanned across the action part and the reaction part in the disk axial direction. There was one hung on a hanger pin (see, for example, Patent Document 2).

実開平２−１６８３６号公報Japanese Utility Model Publication No. 2-16836 特開２００４−１３２４４９号公報JP 2004-132449 A

しかし、上述の特許文献２のものでは、摩擦パッド及びキャリパボディをキャリパブラケットに組み付けた状態でも、ハンガーピンを取り外して摩擦パッドを交換することが可能となるものの、キャリパボディの作用部と反作用部とを、ブリッジ部のディスク回出側へ突出させてハンガーピンを架け渡すことから、キャリパボディが大型化し、重量も嵩んでいた。   However, in the above-mentioned Patent Document 2, it is possible to remove the hanger pin and replace the friction pad even when the friction pad and the caliper body are assembled to the caliper bracket, but the action part and the reaction part of the caliper body Projecting toward the disk delivery side of the bridge portion and hanging the hanger pins, the caliper body was increased in size and weight.

そこで本発明は、キャリパボディの小型化を図りながら、摩擦パッドを良好に交換することができる車両用ディスクブレーキを提供することを目的としている。   Accordingly, an object of the present invention is to provide a vehicle disc brake capable of satisfactorily replacing a friction pad while reducing the size of a caliper body.

上記目的を達成するため、本発明の車両用ディスクブレーキは、ディスクロータの一側部に配置され、ピストンを備えた作用部と、前記ディスクロータの他側部に配置され、反力爪を備えた反作用部とをブリッジ部で連結してキャリパボディを形成し、該キャリパボディを、前記ディスクロータの一側部で車体に固設されるキャリパブラケットに一対のスライドピンを介してディスク軸方向にスライド可能に支持し、前記作用部と反作用部との間に前記ディスクロータを挟んで一対の摩擦パッドを対向配置し、該摩擦パッドに設けた吊下げ部を、前記作用部と反作用部とに亘ってディスク軸方向に架け渡されるハンガーピンに吊持させた車両用ディスクブレーキにおいて、前記摩擦パッドは、車両前進時におけるディスク回入側で、且つ、ディスク半径方向外側に前記パッド吊下げ部が形成されるとともに、ディスク回出側に、前記キャリパボディ又は前記キャリパブラケットのいずれか一方に設けたトルク受部に当接して制動トルクを伝達させるトルク伝達部を備え、前記キャリパボディは、前記ブリッジ部のディスクロータ側面に、前記パッド吊下げ部をディスク軸方向に移動可能に収容する収容凹部が形成され、前記ブリッジ部と前記摩擦パッドの間に縮設されるパッドスプリングが、ディスク回出側に偏って設けられていることを特徴としている。
In order to achieve the above object, a vehicle disc brake according to the present invention is disposed on one side of a disc rotor, and includes an action portion including a piston, and a reaction force claw disposed on the other side of the disc rotor. The caliper body is connected by a bridge portion to form a caliper body, and the caliper body is attached to a caliper bracket fixed to the vehicle body on one side of the disc rotor in a disc axial direction via a pair of slide pins. A slidable support is provided, and a pair of friction pads are disposed opposite to each other with the disk rotor sandwiched between the action part and the reaction part, and a hanging part provided on the friction pad is used as the action part and the reaction part. In the vehicular disc brake suspended on a hanger pin that spans across the disc axis, the friction pad is on the disc entry side when the vehicle is moving forward, Torque transmission in which the pad suspension is formed on the outer side in the radial direction of the disc and the braking force is transmitted by contacting the torque receiving portion provided on either the caliper body or the caliper bracket on the disc delivery side. The caliper body is formed with an accommodation recess for accommodating the pad suspension portion so as to be movable in the disk axial direction on a side surface of the disk rotor of the bridge portion, and is compressed between the bridge portion and the friction pad. The pad spring to be provided is provided so as to be biased toward the disk delivery side .

また、前記摩擦パッドはディスク回入側の外面に、前記キャリパボディよりも外方に突出する摘まみ片を備えていると好ましい。さらに、前記摩擦パッドは、前記ハンガーピンを前記キャリパボディから取り外し、前記摩擦パッドのディスク回入側をディスク半径方向内側に回動させることにより、前記キャリパボディを前記キャリパブラケットに組み付けた状態で、前記キャリパボディから取り外し可能となると好適である。   Further, it is preferable that the friction pad includes a knob piece protruding outward from the caliper body on the outer surface of the disk insertion side. Further, the friction pad is a state in which the caliper body is assembled to the caliper bracket by removing the hanger pin from the caliper body and rotating the disk insertion side of the friction pad inward in the disk radial direction. It is preferable that the caliper body can be removed.

本発明の車両用ディスクブレーキによれば、摩擦パッドは、ディスク回入側で、且つ、ディスク半径方向外側に形成したパッド吊下げ部を、キャリパボディの内側で１本のハンガーピンに吊持させることから、キャリパボディの小型化を図りながら、キャリパボディ及び摩擦パッドをキャリパブラケットに組み付けた状態からでも、ハンガーピンを取り外して摩擦パッドを交換することができる。   According to the vehicle disc brake of the present invention, the friction pad is configured to suspend the pad suspension portion formed on the disk entry side and on the outer side in the radial direction of the disc on one hanger pin inside the caliper body. Thus, the hanger pin can be removed and the friction pad replaced while the caliper body and the friction pad are assembled to the caliper bracket while reducing the size of the caliper body.

また、摩擦パッドのディスク回入側の外面に、キャリパボディよりも外方に突出する摘まみ片を備えていることから、摘まみ片を摘まんで摩擦パッドの交換作業を良好に行うことができる。さらに、摩擦パッドは、ハンガーピンをキャリパボディから取り外し、摩擦パッドのディスク回入側をディスク半径方向内側に回動させることにより、キャリパボディをキャリパブラケットに組み付けた状態で、キャリパボディから取り外し可能となることから、キャリパブラケットが配置される作用部側の摩擦パッドも容易に交換することができる。   In addition, since the grip pad protruding outward from the caliper body is provided on the outer surface of the friction pad on the disk insertion side, the friction pad can be exchanged favorably by picking the handle. . In addition, the friction pad can be removed from the caliper body with the caliper body assembled to the caliper bracket by removing the hanger pin from the caliper body and rotating the disk entry side of the friction pad inward in the disk radial direction. As a result, the friction pad on the working portion side where the caliper bracket is disposed can be easily replaced.

図３のＩ−Ｉ断面図である。It is II sectional drawing of FIG. 図３のＩＩ−ＩＩ断面図である。It is II-II sectional drawing of FIG. 本発明の一形態例を示す車両用ディスクブレーキの側面図である。1 is a side view of a vehicle disc brake showing an embodiment of the present invention. 図６のＩＶ−ＩＶ断面図である。It is IV-IV sectional drawing of FIG. 本発明の一形態例を示す車両用ディスクブレーキの平面図である。It is a top view of the disc brake for vehicles which shows one example of the present invention. 同じく車両用ディスクブレーキの正面図である。It is a front view of the disk brake for vehicles similarly. 作用部側の摩擦パッドを取り外す際にスライドピンを抜いて摩擦パッドを回 動させた状態の説明図である。FIG. 5 is an explanatory diagram of a state in which when the friction pad on the action part side is removed, the slide pin is pulled out and the friction pad is rotated. 作用部側の摩擦パッドを抜き出す際の説明図である。It is explanatory drawing at the time of extracting the friction pad of an action part side. 反作用部側の摩擦パッドを取り外す際の説明図である。It is explanatory drawing at the time of removing the friction pad by the side of a reaction part.

図１乃至図９は本発明の車両用ディスクブレーキの一形態例を示す図で、矢印Ａは、車両前進時に車輪と一体に回転するディスクロータの回転方向であり、以下で述べるディスク回出側及びディスク回入側とは車両前進時におけるものとする。   FIGS. 1 to 9 are views showing one embodiment of the disk brake for a vehicle according to the present invention. An arrow A indicates a rotation direction of a disk rotor that rotates integrally with a wheel when the vehicle moves forward. The disk entry side is assumed to be when the vehicle is moving forward.

本形態例の車両用ディスクブレーキ１は、車両走行時に図示しない車輪と一体に回転するディスクロータ２と、該ディスクロータ２の一側部で車体に取り付けられたキャリパブラケット３と、該キャリパブラケット３に一対のスライドピン４，５を介してディスク軸方向へスライド可能に支持されるピンスライド型のキャリパボディ６と、該キャリパボディ６の作用部６ａ及び反作用部６ｂの間に架け渡されるハンガーピン７と、該ハンガーピン７に吊持され、ディスクロータ２を挟んで対向配置される一対の摩擦パッド８，９とを備えている。   The vehicle disc brake 1 of the present embodiment includes a disc rotor 2 that rotates integrally with a wheel (not shown) during vehicle travel, a caliper bracket 3 that is attached to a vehicle body at one side of the disc rotor 2, and the caliper bracket 3 A pin slide-type caliper body 6 supported so as to be slidable in the disk axial direction via a pair of slide pins 4 and 5, and a hanger pin spanned between the action portion 6a and the reaction portion 6b of the caliper body 6 7 and a pair of friction pads 8 and 9 that are suspended by the hanger pins 7 and arranged to face each other with the disc rotor 2 interposed therebetween.

キャリパボディ６は、ディスクロータ２の両側部に配置される上述の作用部６ａ及び反作用部６ｂと、これらをディスクロータ２の外周を跨いで連結するブリッジ部６ｃとからなっており、ブリッジ部６ｃと摩擦パッド８，９との間にはパッドスプリング１０が縮設されている。作用部６ａには、ディスクロータ２側を開口して有底の３つのシリンダ孔６ｄが設けられ、反作用部６ｂには４つの反力爪６ｅが一体に形成されている。各シリンダ孔６ｄには、ピストン１１が液密に内挿され、ピストン１１とシリンダ孔６ｄの底部との間に液圧室１２が画成されている。   The caliper body 6 includes the above-described action part 6a and reaction part 6b arranged on both sides of the disk rotor 2, and a bridge part 6c that connects these parts across the outer periphery of the disk rotor 2, and the bridge part 6c. The pad spring 10 is contracted between the friction pads 8 and 9. The action portion 6a is provided with three bottomed cylinder holes 6d that open on the disk rotor 2 side, and the reaction portion 6b is integrally formed with four reaction force claws 6e. A piston 11 is inserted in each cylinder hole 6d in a liquid-tight manner, and a hydraulic pressure chamber 12 is defined between the piston 11 and the bottom of the cylinder hole 6d.

作用部６ａのディスク回入側には、ハンガーピン７を取り付ける雌ねじ部６ｆが、反作用部のディスク回入側には、ハンガーピン７を挿通させるピン挿通部６ｇがそれぞれ同軸に形成されている。雌ねじ部６ｆは、反ディスクロータ側に形成された大径の雌ねじ孔６ｈと、ディスクロータ側に形成され、雌ねじ孔６ｈよりも小径でハンガーピン７の軸部を挿通する第１軸部挿通孔６ｉとを備え、雌ねじ孔６ｈと第１軸部挿通孔６ｉとの間には、円錐状の段部が形成されている。ピン挿通部６ｇは、ディスクロータ側に形成され、ハンガーピン７の軸部７ａを挿通させる第２軸部挿通孔６ｊと、該第２軸部挿通孔６ｊに連通するとともに、該第２軸部挿通孔６ｊよりも小径に形成される小径孔６ｋと、該小径孔６ｋに連続するとともに反ディスクロータ側に開口する大径孔６ｍとを備え、大径孔６ｍは小径孔６ｋから開口部に向けて漸次大径となるすり鉢状に形成されている。   A female screw portion 6f for attaching the hanger pin 7 is formed on the disk insertion side of the action portion 6a, and a pin insertion portion 6g for inserting the hanger pin 7 is formed coaxially on the disk insertion side of the reaction portion. The female screw portion 6f has a large-diameter female screw hole 6h formed on the side opposite to the disk rotor and a first shaft portion insertion hole formed on the disk rotor side and having a smaller diameter than the female screw hole 6h and passing through the shaft portion of the hanger pin 7. 6i, and a conical step portion is formed between the female screw hole 6h and the first shaft portion insertion hole 6i. The pin insertion portion 6g is formed on the disk rotor side, communicates with the second shaft portion insertion hole 6j through which the shaft portion 7a of the hanger pin 7 is inserted, and the second shaft portion insertion hole 6j. A small-diameter hole 6k formed with a smaller diameter than the insertion hole 6j and a large-diameter hole 6m that is continuous with the small-diameter hole 6k and that opens to the opposite disk rotor side are provided. The large-diameter hole 6m extends from the small-diameter hole 6k to the opening. It is formed in a mortar shape that gradually becomes larger in diameter.

作用部６ａは、ディスク回出側に第１車体取付腕６ｎが、ディスク半径方向内側に第２車体取付腕６ｐがそれぞれ突設され、第１車体取付腕６ｎに前記一方のスライドピン４が挿通されている。一方のスライドピン４は、ねじ部をキャリパブラケット３の第１スライドピン取付腕３ａに嵌着し、スライドピン４のフランジ部４ａをキャリパブラケット３の一側面に当接させ、キャリパブラケット３の他側面側に突出するねじ部４ｂに、円筒状のトルク受ピン１３（本発明のトルク受部）を螺合している。これにより、ブリッジ部６ｃのディスク回出側に、トルク受ピン１３がディスクロータ２の外周をディスク軸方向に跨いで反作用部方向に配置される。他方のスライドピン５は、キャリパブラケット３の第２スライドピン取付腕３ｂに、反ディスクロータ方向へ向けて突出させて装着され、先端側が前記第２車体取付腕６ｐに挿入される。また、ブリッジ部６ｃのディスクロータ側面のディスク回入側には、摩擦パッド８，９に設けられたパッド吊下げ部８ａ，９ａをディスク軸方向に移動可能に収容する収容凹部６ｑが形成されている。   The action portion 6a has a first vehicle body mounting arm 6n projecting from the disk delivery side and a second vehicle body mounting arm 6p projecting radially inward from the disk, and the one slide pin 4 is inserted into the first vehicle body mounting arm 6n. Has been. One slide pin 4 has a threaded portion fitted to the first slide pin mounting arm 3 a of the caliper bracket 3, and the flange portion 4 a of the slide pin 4 is brought into contact with one side surface of the caliper bracket 3, so that A cylindrical torque receiving pin 13 (a torque receiving portion of the present invention) is screwed into the screw portion 4b protruding to the side surface side. As a result, the torque receiving pin 13 is arranged in the reaction portion direction across the outer periphery of the disc rotor 2 in the disc axial direction on the disc delivery side of the bridge portion 6c. The other slide pin 5 is mounted on the second slide pin mounting arm 3b of the caliper bracket 3 so as to protrude in the direction opposite to the disk rotor, and the tip side is inserted into the second vehicle body mounting arm 6p. An accommodating recess 6q is formed on the side of the disc rotor on the side of the disc rotor of the bridge portion 6c to accommodate the pad suspension portions 8a, 9a provided on the friction pads 8, 9 so as to be movable in the disc axial direction. Yes.

摩擦パッド８，９は、ディスクロータ２の側面と摺接するライニング８ｂ，９ｂを、金属製の裏板８ｃ，９ｃに固着して構成されており、裏板８ｃ，９ｃのディスク回入側で、且つ、ディスク半径方向外側に前記パッド吊下げ部８ａ，９ａが突設され、該パッド吊下げ部８ａ，９ａには、ハンガーピン挿通孔８ｄ，９ｄがそれぞれ穿設されている。さらに、裏板８ｃ，９ｃのディスク回入側の外面には、摩擦パッド８，９をキャリパボディ６に組み付けた際に、キャリパボディ６よりも外方に突出する摘まみ片８ｅ，９ｅがそれぞれ形成されている。   The friction pads 8 and 9 are configured by fixing linings 8b and 9b slidably in contact with the side surfaces of the disk rotor 2 to metal back plates 8c and 9c, and on the disk entrance side of the back plates 8c and 9c, In addition, the pad suspension portions 8a and 9a protrude from the outer side in the radial direction of the disk. Hanger pin insertion holes 8d and 9d are formed in the pad suspension portions 8a and 9a, respectively. Further, on the outer surface of the back plate 8c, 9c on the disk insertion side, when the friction pads 8, 9 are assembled to the caliper body 6, knobs 8e, 9e projecting outward from the caliper body 6 are respectively provided. Is formed.

作用部側の摩擦パッド８の裏板８ｃのディスク回出側には、キャリパブラケット３に支持させる耳片８ｆが突設され、裏板８ｃのディスク回出側には、制動時に制動トルクをキャリパブラケット３に伝達させるトルク伝達面８ｇ（本発明のトルク伝達部）が形成されている。また、作用部側の摩擦パッド８は、図７に示されるように、ディスク回入側をディスク半径方向内側に回動させた際に、収容凹部６ｑのディスク回入側の開口端部Ｐ１から、第２スライドピン取付腕３ｂの先端部Ｐ２の間に形成される空間部Ｅ１を通過可能な形状に形成されている。   An ear piece 8f to be supported by the caliper bracket 3 protrudes from the disk return side of the back plate 8c of the friction pad 8 on the working side, and a braking torque is applied to the disk return side of the back plate 8c during braking. A torque transmission surface 8g (a torque transmission portion of the present invention) to be transmitted to the bracket 3 is formed. Further, as shown in FIG. 7, the friction pad 8 on the working portion side is opened from the opening end portion P1 on the disk insertion side of the housing recess 6q when the disk insertion side is rotated inward in the disk radial direction. The second slide pin mounting arm 3b is formed in a shape that can pass through the space E1 formed between the distal ends P2.

反作用部側の摩擦パッド９の裏板９ｃのディスク回出側には、ディスク回出側を開口させた二股状のトルク伝達腕９ｆ（本発明のトルク伝達部）が形成され、該トルク伝達腕９ｆがトルク受ピン１３に当接している。   A bifurcated torque transmission arm 9f (torque transmission portion of the present invention) having an opening on the disk delivery side is formed on the disk delivery side of the back plate 9c of the friction pad 9 on the reaction part side. 9 f is in contact with the torque receiving pin 13.

キャリパブラケット３は、一枚の板材をプレス加工することによって形成され、ディスク回出側のディスク半径方向外側に突出する前記第１スライドピン取付腕３ａと、ディスク回入側のディスク半径方向内側に突出する前記第２スライドピン取付腕３ｂとを備ている。第１スライドピン取付腕３ａは、ディスク外周側に、スライドピン４を嵌着するスライドピン嵌着孔が形成されるとともに、該スライドピン嵌着孔よりもディスク回出側に一方の車体取付ボルトが装着されるボルト孔３ｃ（本発明の取付部）が形成されている。さらに、第１スライドピン取付腕３ａのディスク内周側には、制動時に作用部側の摩擦パッド８からトルクを受けるトルク受面３ｄ（本発明のトルク受部）と、作用部側の摩擦パッド８に形成された耳片８ｆを支持する支持部３ｅとが直交して形成されている。第２スライドピン取付腕３ｂは、他方のスライドピン５を固着させるスライドピン装着孔３ｆが形成されるとともに、該スライドピン装着孔３ｆよりもディスク内周側に、他方の車体取付ボルトが装着されるボルト孔３ｇ（本発明の取付部）が形成されている。   The caliper bracket 3 is formed by pressing a single plate material. The caliper bracket 3 protrudes outward in the radial direction of the disk on the disk delivery side, and on the inner side of the disk in the radial direction of the disk. The projecting second slide pin mounting arm 3b is provided. The first slide pin mounting arm 3a is formed with a slide pin mounting hole for mounting the slide pin 4 on the outer peripheral side of the disk, and one body mounting bolt on the disk delivery side with respect to the slide pin mounting hole. Is formed with a bolt hole 3c (an attachment portion of the present invention). Further, on the inner peripheral side of the disk of the first slide pin mounting arm 3a, a torque receiving surface 3d (torque receiving portion of the present invention) that receives torque from the friction pad 8 on the action portion side during braking, and a friction pad on the action portion side A support portion 3e that supports the ear piece 8f formed on the base plate 8 is formed orthogonally. The second slide pin mounting arm 3b is formed with a slide pin mounting hole 3f for fixing the other slide pin 5, and the other vehicle body mounting bolt is mounted on the inner peripheral side of the disk with respect to the slide pin mounting hole 3f. Bolt hole 3g (attachment portion of the present invention) is formed.

ハンガーピン７は、軸部７ａの一端側に軸部よりも大径の雄ねじ部７ｂを、他端側に、軸部７ａよりも小径の小径軸部７ｃをそれぞれ備え、雄ねじ部７ｂと軸部７ａとの間には、雄ねじ部７ｂから軸部に向けて漸次小径となる円錐部が形成されている。小径軸部７ｃは、他端側に、抜止め部材１４を嵌着する周溝７ｄが周設され、該周溝７ｄよりも他端側には、端部に向けて漸次小径となる円錐状の頭部７ｅが形成されている。抜止め部材１４は、例えば、ポリプロピレン等の樹脂でＣ字状に形成されたもので、小径孔６ｋの内径よりも僅かに大径と成る外径を有している。   The hanger pin 7 includes a male screw portion 7b having a diameter larger than that of the shaft portion on one end side of the shaft portion 7a, and a small diameter shaft portion 7c having a diameter smaller than that of the shaft portion 7a on the other end side. A conical portion having a gradually decreasing diameter from the male screw portion 7b toward the shaft portion is formed between the portion 7a and the shaft 7a. The small-diameter shaft portion 7c is provided with a circumferential groove 7d for fitting the retaining member 14 on the other end side, and on the other end side of the circumferential groove 7d is a conical shape having a gradually decreasing diameter toward the end portion. The head 7e is formed. The retaining member 14 is formed, for example, in a C shape with a resin such as polypropylene, and has an outer diameter that is slightly larger than the inner diameter of the small-diameter hole 6k.

このように形成されたキャリパブラケット３とキャリパボディ６とに、摩擦パッド８，９を組み付ける際には、作用部の摩擦パッド８の耳片８ｆを支持部３ｅに支持させ、キャリパブラケット３のトルク受面３ｄと、摩擦パッド８のトルク伝達面８ｇとを当接させる。また、反作用部側の摩擦パッド９のトルク伝達腕９ｆをトルク受ピン１３に当接させて摩擦パッド９を支持させる。この状態で、摩擦パッド８，９のパッド吊下げ部８ａ，９ａは、ブリッジ部６ｃの収容凹部６ｑに収容されており、ハンガーピン挿通孔８ｄ，９ｄとキャリパボディ６の雌ねじ部６ｆとピン挿通部６ｇとは、軸線が合致した位置に配置されている。   When the friction pads 8 and 9 are assembled to the caliper bracket 3 and the caliper body 6 formed in this way, the ear piece 8f of the friction pad 8 of the action portion is supported by the support portion 3e, and the torque of the caliper bracket 3 is set. The receiving surface 3d is brought into contact with the torque transmission surface 8g of the friction pad 8. Further, the friction transmitting pad 9 is supported by bringing the torque transmitting arm 9 f of the friction pad 9 on the reaction portion side into contact with the torque receiving pin 13. In this state, the pad suspension portions 8a and 9a of the friction pads 8 and 9 are accommodated in the accommodating recess 6q of the bridge portion 6c, and the pin insertion is performed between the hanger pin insertion holes 8d and 9d and the female thread portion 6f of the caliper body 6. The part 6g is arranged at a position where the axes coincide.

次いで、周溝７ｄに抜止め部材１４を嵌着した状態のハンガーピン７を、雌ねじ孔６ｈ、第１軸部挿通孔６ｉ、ハンガーピン挿通孔８ｄ，９ｄ、第２軸部挿通孔６ｊ、小径孔６ｋに順に挿通し、雄ねじ部７ｂを雌ねじ孔６ｈに螺合させ、雌ねじ孔６ｈと第１軸部挿通孔６ｉとの間に形成された段部を、雄ねじ部７ｂと軸部７ａとの間に形成された円錐部に当接させる。抜止め部材１４は、小径孔６ｋを圧縮された状態で通過して大径孔６ｍに配置され、頭部７ｅが大径孔６ｍから外方へ突出し、小径孔６ｋと、小径孔６ｋよりも僅かに大径に形成された抜止め部材１４とによってハンガーピン７の抜止めが図られる。   Next, the hanger pin 7 in a state in which the retaining member 14 is fitted in the circumferential groove 7d, the female screw hole 6h, the first shaft portion insertion hole 6i, the hanger pin insertion holes 8d and 9d, the second shaft portion insertion hole 6j, the small diameter The male screw portion 7b is threaded into the female screw hole 6h in order through the hole 6k, and the step formed between the female screw hole 6h and the first shaft portion insertion hole 6i is connected to the male screw portion 7b and the shaft portion 7a. It is made to contact | abut to the cone part formed in the middle. The retaining member 14 passes through the small-diameter hole 6k in a compressed state and is disposed in the large-diameter hole 6m. The head 7e protrudes outward from the large-diameter hole 6m, and is smaller than the small-diameter hole 6k and the small-diameter hole 6k. The hanger pin 7 is prevented from being removed by the retaining member 14 having a slightly larger diameter.

また、摩擦パッド８，９の交換時に、摩擦パッド８，９をキャリパボディ６から取り外す際には、ハンガーピン７の雄ねじ部７ｂを緩め、抜止め部材１４を圧縮させながらハンガーピン７を、小径孔６ｋ、第２軸部挿通孔６ｊ、ハンガーピン挿通孔８ｄ，９ｄ、第１軸部挿通孔６ｉ、雌ねじ孔６ｈから抜き出す。次いで、作用部側の摩擦パッド８は、図７に示されるように、摘まみ片８ｅを持って、摩擦パッド８のディスク回入側をディスク半径方向内側に回動させ、図８に示されるようにディスク回入側に引っ張ることにより、耳片８ｆが支持部３ｅを離れ、裏板８ｃのディスク半径方向外側が前記開口端部Ｐ１を通過し、裏板８ｃのディスク半径方向内側が前記先端部Ｐ２を通過して、摩擦パッド８を空間部Ｅ１からキャリパボディ６の外部に取り出すことができる。また、交換する新品の摩擦パッド８も、空間部Ｅ１を介して所定の場所に容易に挿入することができる。   Further, when the friction pads 8 and 9 are replaced, when the friction pads 8 and 9 are removed from the caliper body 6, the male screw portion 7 b of the hanger pin 7 is loosened and the hanger pin 7 is moved to a small diameter while the retaining member 14 is compressed. It is extracted from the hole 6k, the second shaft portion insertion hole 6j, the hanger pin insertion holes 8d and 9d, the first shaft portion insertion hole 6i, and the female screw hole 6h. Next, as shown in FIG. 7, the friction pad 8 on the working portion side has a knob 8e and rotates the disk insertion side of the friction pad 8 inward in the radial direction of the disk, as shown in FIG. By pulling to the disk entry side in this manner, the ear piece 8f leaves the support portion 3e, the disk radial outer side of the back plate 8c passes through the opening end P1, and the inner side of the back plate 8c in the disk radial direction is the tip. The friction pad 8 can be taken out of the caliper body 6 from the space E1 through the portion P2. Also, the new friction pad 8 to be replaced can be easily inserted into a predetermined place via the space E1.

一方、反作用部の摩擦パッド９は、図９に示されるように、摘まみ片９ｅを持って、摩擦パッド９のディスク回入側をディスク半径方向内側に回動させながらディスク回入側に引っ張ることにより、トルク伝達腕９ｆがトルク受ピン１３から離れ、反力爪６ｅとディスクロータ２との隙間からキャリパボディ６の外部に取り出すことができる。また、交換する新品の摩擦パッド９も、反力爪６ｅとディスクロータ２との隙間を介して所定の場所に容易に挿入することができる。   On the other hand, as shown in FIG. 9, the friction pad 9 of the reaction part has a knob 9e and pulls the friction pad 9 toward the disk insertion side while rotating the disk insertion side of the friction pad 9 inward in the disk radial direction. As a result, the torque transmitting arm 9f is separated from the torque receiving pin 13 and can be taken out of the caliper body 6 through the gap between the reaction force claw 6e and the disc rotor 2. Also, the new friction pad 9 to be replaced can be easily inserted into a predetermined place through the gap between the reaction force claw 6e and the disc rotor 2.

本形態例は上述のように、摩擦パッド８，９は、ディスク回入側で、且つ、ディスク半径方向外側に形成したパッド吊下げ部８ａ，９ａを、キャリパボディ６の内側で１本のハンガーピン７に吊持させることから、キャリパボディ６の小型化を図りながら、キャリパボディ６及び摩擦パッド８，９をキャリパブラケット３に組み付けた状態からでも、ハンガーピン７を取り外して摩擦パッド８，９を交換することができる。また、摩擦パッド８，９のディスク回入側の外面に、キャリパボディ６よりも外方に突出する摘まみ片８ｅ，９ｅを形成したことから、摘まみ片８ｅ，９ｅを摘まんで摩擦パッド８，９の交換作業を良好に行うことができる。さらに、ハンガーピン７を外して摩擦パッド８を回動させることにより、空間部Ｅ１を介して摩擦パッド８を簡単に着脱することができることから、キャリパブラケット３が配置される作用部側の摩擦パッド８も容易に交換することができる。   In the present embodiment, as described above, the friction pads 8 and 9 are arranged on the disk insertion side and the pad hanging portions 8a and 9a formed on the outer side in the radial direction of the disk. Since the caliper body 6 and the friction pads 8 and 9 are assembled to the caliper bracket 3 while the caliper body 6 is miniaturized, the hanger pins 7 are removed and the friction pads 8 and 9 are removed. Can be exchanged. Further, since the tabs 8e and 9e projecting outward from the caliper body 6 are formed on the outer surfaces of the friction pads 8 and 9 on the disk insertion side, the tabs 8e and 9e are picked and the friction pad 8 is picked. 9 can be performed satisfactorily. Further, by removing the hanger pin 7 and rotating the friction pad 8, the friction pad 8 can be easily attached / detached via the space E 1, so that the friction pad on the working portion side where the caliper bracket 3 is disposed is provided. 8 can also be easily replaced.

なお、本発明は上述の形態例に限るものではなく、摩擦パッドからの制動トルクをキャリパボディで受けるものでもよく、摩擦パッドに設けるトルク伝達部の形状や、キャリパブラケット又はキャリパボディに設けるトルク受部の形状は任意である。また、ハンガーピンも本形態例に限るものではなく、着脱が可能であれば抜止め構造は任意で、Ｃ字状の抜止め部材を用いるものに限らない。さらに、ピストンの数も本形態例に限るものではなく任意である。   Note that the present invention is not limited to the above-described embodiments, and the brake torque from the friction pad may be received by the caliper body. The shape of the torque transmitting portion provided in the friction pad, the torque receiving provided in the caliper bracket or the caliper body, and the like. The shape of the part is arbitrary. Also, the hanger pin is not limited to the present embodiment, and the retaining structure is arbitrary as long as it can be attached and detached, and is not limited to the one using a C-shaped retaining member. Furthermore, the number of pistons is not limited to this embodiment, and is arbitrary.

１…車両用ディスクブレーキ、２…ディスクロータ、３…キャリパブラケット、３ａ…第１スライドピン取付腕、３ｂ…第２スライドピン取付腕、３ｃ…ボルト孔、３ｄ…トルク受面、３ｅ…支持部、３ｆ…スライドピン装着孔、３ｇ…ボルト孔、４…スライドピン、４ａ…フランジ部、４ｂ…ねじ部、５…スライドピン、６…キャリパボディ、６ａ…作用部、６ｂ…反作用部、６ｃ…ブリッジ部、６ｄ…シリンダ孔、６ｅ…反力爪、６ｆ…雌ねじ部、６ｇ…ピン挿通部、６ｈ…雌ねじ孔、６ｉ…第１軸部挿通孔、６ｊ…第２軸部挿通孔、６ｋ…小径孔、６ｍ…大径孔、６ｎ…第１車体取付腕、６ｐ…第２車体取付腕、６ｑ…収容凹部、６ｒ…ディスクロータ側面、７…ハンガーピン、７ａ…軸部、７ｂ…雄ねじ部、７ｃ…小径軸部、７ｄ…周溝、７ｅ…頭部、８…摩擦パッド、８ａ…パッド吊下げ部、８ｂ…ライニング、８ｃ…裏板、８ｄ…ハンガーピン挿通孔、８ｅ…摘まみ片、８ｆ…耳片、８ｇ…トルク伝達面、９…摩擦パッド、９ａ…パッド吊下げ部、９ｂ…ライニング、９ｃ…裏板、９ｄ…ハンガーピン挿通孔、９ｅ…摘まみ片、９ｆ…トルク伝達腕、１０…パッドスプリング、１１…ピストン、１２…液圧室、１３…トルク受ピン、１４…抜止め部材 DESCRIPTION OF SYMBOLS 1 ... Vehicle disc brake, 2 ... Disc rotor, 3 ... Caliper bracket, 3a ... 1st slide pin mounting arm, 3b ... 2nd slide pin mounting arm, 3c ... Bolt hole, 3d ... Torque receiving surface, 3e ... Support part 3f ... Slide pin mounting hole, 3g ... Bolt hole, 4 ... Slide pin, 4a ... Flange part, 4b ... Screw part, 5 ... Slide pin, 6 ... Caliper body, 6a ... Action part, 6b ... Reaction part, 6c ... Bridge part, 6d ... cylinder hole, 6e ... reaction force claw, 6f ... female screw part, 6g ... pin insertion part, 6h ... female screw hole, 6i ... first shaft part insertion hole, 6j ... second shaft part insertion hole, 6k ... Small diameter hole, 6m ... large diameter hole, 6n ... first vehicle body mounting arm, 6p ... second vehicle body mounting arm, 6q ... receiving recess, 6r ... disk rotor side surface, 7 ... hanger pin, 7a ... shaft portion, 7b ... male screw portion 7c ... small diameter shaft portion, 7d ... Groove, 7e ... head, 8 ... friction pad, 8a ... pad suspension, 8b ... lining, 8c ... back plate, 8d ... hanger pin insertion hole, 8e ... pick piece, 8f ... ear piece, 8g ... torque transmission Surface, 9 ... friction pad, 9a ... pad suspension, 9b ... lining, 9c ... back plate, 9d ... hanger pin insertion hole, 9e ... knob, 9f ... torque transmission arm, 10 ... pad spring, 11 ... piston , 12 ... Hydraulic pressure chamber, 13 ... Torque receiving pin, 14 ... Detent member

Claims (3)

ディスクロータの一側部に配置され、ピストンを備えた作用部と、前記ディスクロータの他側部に配置され、反力爪を備えた反作用部とをブリッジ部で連結してキャリパボディを形成し、該キャリパボディを、前記ディスクロータの一側部で車体に固設されるキャリパブラケットに一対のスライドピンを介してディスク軸方向にスライド可能に支持し、前記作用部と反作用部との間に前記ディスクロータを挟んで一対の摩擦パッドを対向配置し、該摩擦パッドに設けた吊下げ部を、前記作用部と反作用部とに亘ってディスク軸方向に架け渡されるハンガーピンに吊持させた車両用ディスクブレーキにおいて、
前記摩擦パッドは、車両前進時におけるディスク回入側で、且つ、ディスク半径方向外側に前記パッド吊下げ部が形成されるとともに、ディスク回出側に、前記キャリパボディ又は前記キャリパブラケットのいずれか一方に設けたトルク受部に当接して制動トルクを伝達させるトルク伝達部を備え、
前記キャリパボディは、前記ブリッジ部のディスクロータ側面に、前記パッド吊下げ部をディスク軸方向に移動可能に収容する収容凹部が形成され、
前記ブリッジ部と前記摩擦パッドの間に縮設されるパッドスプリングが、ディスク回出側に偏って設けられていることを特徴とする車両用ディスクブレーキ。 A caliper body is formed by connecting a working part provided with a piston on one side of the disk rotor and a reaction part provided on the other side of the disk rotor with a reaction force claw at a bridge part. The caliper body is supported by a caliper bracket fixed to the vehicle body on one side of the disc rotor so as to be slidable in the disc axial direction via a pair of slide pins, and between the action portion and the reaction portion. A pair of friction pads are arranged opposite to each other with the disk rotor interposed therebetween, and a suspension portion provided on the friction pad is suspended by a hanger pin that extends across the action portion and the reaction portion in the disk axial direction. In vehicle disc brakes,
The friction pad has a pad suspension portion formed on the disk entry side when the vehicle moves forward and on the outer side in the disk radial direction, and either the caliper body or the caliper bracket on the disk delivery side. A torque transmission part that contacts the torque receiving part provided in
The caliper body is formed on the side of the disk rotor of the bridge portion with an accommodation recess for accommodating the pad suspension so as to be movable in the disc axial direction .
A vehicular disc brake , wherein a pad spring contracted between the bridge portion and the friction pad is provided to be biased toward the disc delivery side . 前記摩擦パッドはディスク回入側の外面に、前記キャリパボディよりも外方に突出する摘まみ片を備えていることを特徴とする請求項１記載の車両用ディスクブレーキ。   2. The disc brake for a vehicle according to claim 1, wherein the friction pad includes a knob piece projecting outward from the caliper body on an outer surface of the disc insertion side. 前記摩擦パッドは、前記ハンガーピンを前記キャリパボディから取り外し、前記摩擦パッドのディスク回入側をディスク半径方向内側に回動させることにより、前記キャリパボディを前記キャリパブラケットに組み付けた状態で、前記キャリパボディから取り外し可能となることを特徴とする請求項１又は２記載の車両用ディスクブレーキ。   The friction pad is formed by removing the hanger pin from the caliper body and rotating the disc insertion side of the friction pad inward in the radial direction of the disc so that the caliper body is assembled to the caliper bracket. The vehicle disc brake according to claim 1 or 2, wherein the disc brake can be removed from the body.
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