JPH0736189Y2 - Disc brake - Google Patents

Disc brake

Info

Publication number
JPH0736189Y2
JPH0736189Y2 JP1989080939U JP8093989U JPH0736189Y2 JP H0736189 Y2 JPH0736189 Y2 JP H0736189Y2 JP 1989080939 U JP1989080939 U JP 1989080939U JP 8093989 U JP8093989 U JP 8093989U JP H0736189 Y2 JPH0736189 Y2 JP H0736189Y2
Authority
JP
Japan
Prior art keywords
guide
peripheral surface
fitted
cylindrical
facing
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.)
Expired - Lifetime
Application number
JP1989080939U
Other languages
Japanese (ja)
Other versions
JPH0320732U (en
Inventor
泰司 塩谷
直躬 三岡
一泰 薦田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hosei Brake Industry Co Ltd
Original Assignee
Hosei Brake Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hosei Brake Industry Co Ltd filed Critical Hosei Brake Industry Co Ltd
Priority to JP1989080939U priority Critical patent/JPH0736189Y2/en
Publication of JPH0320732U publication Critical patent/JPH0320732U/ja
Application granted granted Critical
Publication of JPH0736189Y2 publication Critical patent/JPH0736189Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【考案の詳細な説明】 産業上の利用分野 本考案はディスクブレーキに関するものである。DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a disc brake.

従来の技術 ガイド穴が形成されたガイド部およびそのガイド穴に摺
動可能に嵌合されるガイドピンの一方が設けられたキャ
リパと、それらガイド部およびガイドピンの他方が設け
られ、それらガイド部のガイド穴とガイドピンとの嵌合
に基づいてキャリパを移動可能に支持する支持部材と、
軸心方向において所定間隔隔てた位置に環状を成す第1
取付部および第2取付部を有し、その第1取付部が前記
ガイド部のガイド穴の開口側に取り付けられ且つその第
2取付部が前記ガイドピンに取り付けられることにより
それらガイド部およびガイドピンの摺動面を保護するダ
ストブーツとを備えた形式のディスクブレーキが知られ
ている。
2. Description of the Related Art A caliper provided with a guide portion formed with a guide hole and one guide pin slidably fitted in the guide hole, and a guide portion provided with the guide portion and the other of the guide pins. A support member that movably supports the caliper based on the fitting between the guide hole and the guide pin of
A first ring-shaped member at a position separated by a predetermined distance in the axial direction.
A guide part and a guide pin having a mounting part and a second mounting part, the first mounting part being mounted on the opening side of the guide hole of the guide part and the second mounting part being mounted on the guide pin. Disc brakes of the type having a dust boot for protecting the sliding surface of the disc brake are known.

かかるディスクブレーキにおいては、通常、ガイド部の
ガイド穴開口側の内周面であって開口端から所定距離内
側に位置する部分に切削加工により環状溝が形成されて
おり、この環状溝に前記ダストブーツの第1取付部が嵌
め着けられるようになっている。
In such a disc brake, an annular groove is usually formed by cutting on the inner peripheral surface of the guide portion on the guide hole opening side, which is located a predetermined distance inside from the opening end, and the dust is formed in the annular groove. The first mounting portion of the boot is adapted to be fitted.

しかしながら、ガイド部のガイド穴開口端から所定距離
内側に位置する内周面に、そのガイド部を軸心まわりに
回転させることなく環状溝を切削加工により形成する場
合には、通常、切削機の主軸の回転中心およびその主軸
に取り付けられた切削工具の回転中心を互いに一致させ
る状態と両回転中心を偏心させる状態とに切り換えるた
めの切換え機構が必要となって、構造が複雑で高価な切
削機を要するという問題があった。
However, in the case of forming an annular groove by cutting without rotating the guide portion around the axis on the inner peripheral surface located inside the guide hole opening end of the guide portion by a cutting process, usually, A cutting mechanism that has a complicated structure and is expensive because a switching mechanism is required to switch the rotation center of the spindle and the rotation center of the cutting tool attached to the spindle to a state in which they coincide with each other and a state in which both the rotation centers are eccentric. There was a problem that required.

これに対し、例えば実公昭63-15620号公報に記載のよう
に、予めダストブーツの第1取付部が固着された金属製
の円筒状部材をガイド部に圧入固定したり、或いは特公
昭61-57500号公報に記載のように、一端に外向きフラン
ジを有する円筒状部材をガイド部の開口側外周面に圧入
しての外向きフランジにより抜けを阻止した状態でダス
トブーツの第1取付部を円筒状部材の外周面に嵌め着け
たりすることが提案されている。
On the other hand, for example, as described in Japanese Utility Model Publication No. 63-15620, a metal cylindrical member to which the first mounting portion of the dust boot is fixed in advance is press-fitted and fixed to the guide portion, or Japanese Patent Publication No. As described in Japanese Patent No. 57500, the first mounting portion of the dust boot is fixed in a state where a cylindrical member having an outward flange at one end is press-fitted into the outer peripheral surface of the guide portion on the opening side and the outward flange prevents the cylindrical member from coming off. It has been proposed to fit the outer peripheral surface of a cylindrical member.

考案が解決しようとする課題 しかし、前者の場合には、円筒状部材とダストブーツと
を予め固着しておく必要があるためディスクブレーキの
コストが増大することが避け難いとともに、後者の場合
には、嵌着け方向に対して略直角な外向きフランジを越
えて第1取付部を嵌め着ける必要があるためその嵌着け
作業を円滑に為し難いという問題がある。
However, in the former case, since it is necessary to fix the cylindrical member and the dust boot in advance, it is unavoidable that the cost of the disc brake increases, and in the latter case, However, since it is necessary to fit the first mounting portion beyond the outward flange that is substantially perpendicular to the fitting direction, there is a problem that it is difficult to perform the fitting work smoothly.

本考案は以上の事情を背景として為されたものであっ
て、その目的とするところは、ダストブーツの第1取付
部をガイド部に外れが阻止された状態で取り着けるため
にそのガイド部に環状溝を形成する必要がないとともに
その第1取付部のガイド部への取着け作業を円滑に為し
得る安価なディスクブレーキを提供することにある。
The present invention has been made in view of the above circumstances, and the purpose thereof is to attach the first mounting portion of the dust boot to the guide portion so that the first mounting portion can be attached to the guide portion in a state in which the detachment is prevented. It is an object of the present invention to provide an inexpensive disc brake that does not need to form an annular groove and that can smoothly attach the first mounting portion to the guide portion.

課題を解決するための手段 上記目的を達成するために、本考案は、前記キャリパ
と、支持部材と、ダストブーツとを備えた形式のディス
クブレーキにおいて、円筒部と、その円筒部の一端部を
少なくとも外側面が略半円の円弧状曲面を成すように内
周側または外周側へ略180°折り曲げることにより形成
されて円筒部と対向する対向部とを有し、その円筒部の
外周面または内周面が前記ガイド部の開口側の内周面ま
たは外周面に密着するように円筒部の他端部側からその
ガイド部に圧入されるととともに、前記ダストブーツの
第1取付部が前記一端部側から前記円弧状曲面および前
記対向部に案内されつつその対向部の先端を越えて嵌め
着けられ、対向部の先端で上記第1取付部を離脱不能に
係止する金属製の環状部材を設けたことを特徴とする。
Means for Solving the Problems In order to achieve the above object, the present invention relates to a disc brake of the type including the caliper, a supporting member, and a dust boot, and a cylindrical portion and one end portion of the cylindrical portion. At least the outer surface has an opposing portion that faces the cylindrical portion and is formed by bending approximately 180 ° toward the inner peripheral side or the outer peripheral side so as to form a substantially semicircular arcuate curved surface, and the outer peripheral surface of the cylindrical portion or The inner peripheral surface is press-fitted into the guide portion from the other end side of the cylindrical portion so that the inner peripheral surface closely contacts the inner peripheral surface or the outer peripheral surface on the opening side of the guide portion, and the first mounting portion of the dust boot is A metal annular member which is guided from the one end side to the arcuate curved surface and the facing part and is fitted over the tip of the facing part so as to irremovably lock the first mounting part at the end of the facing part. Is provided .

作用および考案の効果 このようにすれば、ガイド部の開口側内周面または外周
面に円筒部の外周面または内周面が密着するように、そ
の円筒部の他端部すなわち対向部が設けられた側と反対
側の端部から環状部材をガイド部に圧入するとともに、
ダストブーツの第1取付部を一端部すなわち対向部が設
けられた側から対向部の先端を越えて嵌め着けることに
より、その第1取付部は対向部の先端に離脱不能に係止
させられ、環状部材を介してガイド部に取り付けられ
る。したがって、ガイド部に従来のような環状溝を形成
する必要がなくなって従来のような構造が複雑で高価な
切削機を要しないとともに、ダストブーツと環状部材と
を固着するための接着工程などを必要とせず、ディスク
ブレーキのコストの増大を回避し得る。
With this configuration, the other end of the cylindrical portion, that is, the facing portion, is provided so that the outer peripheral surface or the inner peripheral surface of the cylindrical portion closely contacts the inner peripheral surface or the outer peripheral surface of the guide portion on the opening side. While pressing the annular member into the guide part from the end opposite to the side where
By fitting the first mounting portion of the dust boot from one end, that is, the side where the facing portion is provided, beyond the tip of the facing portion, the first mounting portion is irremovably locked to the tip of the facing portion, It is attached to the guide portion via an annular member. Therefore, it is not necessary to form an annular groove in the guide portion as in the prior art, and a conventional structure does not require a complicated and expensive cutting machine, and a bonding step for fixing the dust boot and the annular member is performed. It is not necessary and the increase in the cost of the disc brake can be avoided.

しかも、上記対向部は前記円筒部の一端部を内周側また
は外周側へ略180°折り曲げることにより形成され、対
向部と円筒部との間の折曲げ部分の少なくとも外側面は
略半円の円弧状曲面を成しているため、ダストブーツの
第1取付部を環状部材に嵌め着ける際には、その第1取
付部を円弧状曲面および対向部に沿って滑らせつつ対向
部の先端側へ案内し得るため、第1取付部の環状部材へ
の嵌着め作業、つまり第1取付部のガイド部への取着け
作業を円滑に為し得るのである。
Moreover, the facing portion is formed by bending one end portion of the cylindrical portion toward the inner peripheral side or the outer peripheral side by approximately 180 °, and at least the outer surface of the bent portion between the facing portion and the cylindrical portion has a substantially semicircular shape. Since the arc-shaped curved surface is formed, when the first mounting portion of the dust boot is fitted and attached to the annular member, the first mounting portion is slid along the arc-shaped curved surface and the facing portion, and the tip end side of the facing portion is slid. Therefore, the work of fitting the first mounting portion to the annular member, that is, the work of mounting the first mounting portion to the guide portion can be smoothly performed.

実施例 以下、本考案の一実施例を示す図面に基づいて詳細に説
明する。
Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

第2図は本考案が適用されたディスクブレーキの要部を
示す図であって、10はディスクロータ、12はキャリパで
ある。キャリパ12は、内部に図示しないピストンが突出
し可能に嵌合されたシリンダ部16と、そのシリンダ部16
から一体に延び出してディスクロータ10を間にしてシリ
ンダ部16と対向する爪部18とを有して構成されている。
キャリパ12の内側には、前記ピストンと爪部18との間に
おいて一対のパッド20,22がディスクロータ10を挟んだ
状態で配設されており、これらパッド20,22は図示しな
い非回転部材に固定されたトルクプレート24によりディ
スクロータ10の軸心と平行な方向の移動可能に支持され
ている。
FIG. 2 is a view showing a main part of a disc brake to which the present invention is applied, in which 10 is a disc rotor and 12 is a caliper. The caliper 12 includes a cylinder portion 16 in which a piston (not shown) is fitted so that the piston can protrude, and the cylinder portion 16
And a claw portion 18 facing the cylinder portion 16 with the disc rotor 10 in between.
Inside the caliper 12, a pair of pads 20 and 22 are arranged between the piston and the claw portion 18 with the disc rotor 10 sandwiched therebetween, and these pads 20 and 22 are non-rotating members (not shown). The fixed torque plate 24 movably supports the disk rotor 10 in a direction parallel to the axis thereof.

シリンダ部16のディスクロータ10周方向と対向する両側
部には、第1図および第2図に示すように、内部にガイ
ド穴26が形成された一対のアーム部28,30が設けられて
いるとともに、前記トルクプレート24には一対のガイド
ピン32,34がディスクロータ10の軸心と平行な方向にそ
れぞれ立設されている。ガイドピン34(32)は、第1図
に示すように、円筒状のスリーブ36とそのスリーブ36を
挿通した状態で前記トルクプレート24に螺合により締め
付けられたボルト38とを有して構成されており、前記ガ
イド穴26内に圧入されたブッシュ42の内周面にスリーブ
36において摺動可能に嵌合されている。これにより、キ
ャリパ12は、そのアーム部28,30においてガイドピン32,
34を介してディスクロータ10の軸心と平行な方向の浮動
可能にトルクプレート24に支持されている。本実施例に
おいては、上記トルクプレート24が支持部材を、上記ア
ーム部28,30がガイド部をそれぞれ構成する。なお、第
2図において、58,60は、トルクプレート24とパッド20,
22との間にそれぞれ介挿されて、それらパッド20,22の
がたつきを防止するアンチラトルスプリングである。以
上のように構成されたディスクブレーキの作動は良く知
られたものであるとともに本考案の理解に必ずしも必要
ではないため、その詳細な説明は省略する。
As shown in FIGS. 1 and 2, a pair of arm portions 28, 30 having guide holes 26 formed therein are provided on both side portions of the cylinder portion 16 facing the circumferential direction of the disk rotor 10. At the same time, a pair of guide pins 32 and 34 are erected on the torque plate 24 in a direction parallel to the axis of the disk rotor 10. As shown in FIG. 1, the guide pin 34 (32) is configured to have a cylindrical sleeve 36 and a bolt 38 screwed into the torque plate 24 with the sleeve 36 inserted therethrough. And the sleeve is attached to the inner peripheral surface of the bush 42 press-fitted into the guide hole 26.
Slidably fitted at 36. As a result, the caliper 12 has the guide pins 32,
It is supported by the torque plate 24 via 34 so as to be floatable in a direction parallel to the axis of the disk rotor 10. In this embodiment, the torque plate 24 constitutes a support member and the arm portions 28, 30 constitute guide portions. In FIG. 2, 58 and 60 are torque plates 24 and pads 20,
The anti-rattle spring is inserted between the pad and the pad 22 to prevent the pads 20 and 22 from rattling. The operation of the disc brake constructed as described above is well known and is not always necessary for understanding the present invention, and thus detailed description thereof will be omitted.

ガイドピン32,34の前記ガイド穴26から突き出す両端部
とアーム部28,30のディスクロータ10軸心と平行な方向
における両端部との間にはゴム製のダストブーツ44がそ
れぞれ取り着けられており、このダストブーツ44により
ガイドピン32,34とアーム部28,30のガイド穴26(より正
確にはブッシュ42)との摺動面がそれぞれ保護されてい
る。各ダストブーツ44は同様に構成されており且つ同様
にして取り着けられているため、以下の説明はガイドピ
ン34の突出端側に設けられたダストブーツ44について行
うこととする。
Rubber dust boots 44 are attached between both ends of the guide pins 32, 34 protruding from the guide hole 26 and both ends of the arms 28, 30 in a direction parallel to the axis of the disc rotor 10. The dust boots 44 protect the sliding surfaces of the guide pins 32 and 34 and the guide holes 26 (more accurately, the bushes 42) of the arm portions 28 and 30, respectively. Since the dust boots 44 have the same structure and are attached in the same manner, the following description will be made on the dust boots 44 provided on the protruding end side of the guide pin 34.

ダストブーツ44は、第1図および第3図に示すように、
軸心方向両端部に環状を成す第1取付部46および第2取
付部48を有しており、アーム部30のガイド穴26開口側に
形成されてアーム部30の軸心方向端面において開口し且
つガイド穴26より大きい内径を有する内周面50と、ガイ
ドピン34の外周面との間において第1取付部46が取り着
けられているとともに、第2取付部48がガイドピン34の
外周面に形成された環状溝に嵌め着けられている。前記
内周面50には、円筒部52と、その円筒部52の軸心方向一
端部を複数回の曲げ加工により全周に亘って内周側へ略
180°折り曲げることにより形成されて円筒部52と略密
着した状態で対向する対向部54とを有する金属製の環状
部材56が、円筒部52の他端部すなわち対向部54側と反対
側の端部から円筒部52の外周面が密着するように圧入さ
れている。これにより、ガイド穴26および前記内周面50
間の段付面と環状部材56の円筒部52内周面と対向部54の
先端面とによって環状溝が形成されており、この環状溝
内に対向部54により抜けが阻止された状態、すなわち対
向部54の先端に離脱不能に係止させられた状態で前記第
1取付部46が嵌め着けられているのである。上記対向部
54と円筒部52との間の折曲げ部分には、曲げ加工の際に
略半円の円弧状曲面57が形成されている。
The dust boot 44, as shown in FIGS. 1 and 3,
It has an annular first mounting portion 46 and a second mounting portion 48 at both ends in the axial direction, and is formed at the guide hole 26 opening side of the arm portion 30 and opens at the axial end surface of the arm portion 30. Further, the first mounting portion 46 is mounted between the inner peripheral surface 50 having an inner diameter larger than that of the guide hole 26 and the outer peripheral surface of the guide pin 34, and the second mounting portion 48 is mounted on the outer peripheral surface of the guide pin 34. It is fitted in an annular groove formed in the. On the inner peripheral surface 50, a cylindrical portion 52 and one end portion in the axial direction of the cylindrical portion 52 are bent toward the inner peripheral side over the entire circumference by a plurality of bending processes.
An annular member 56 made of metal, which is formed by bending by 180 ° and has a facing portion 54 that faces the cylindrical portion 52 in a substantially closely contacted state, is the other end of the cylindrical portion 52, that is, the end opposite to the facing portion 54 side. The outer peripheral surface of the cylindrical portion 52 is press-fitted from the portion so as to be in close contact. Thereby, the guide hole 26 and the inner peripheral surface 50
An annular groove is formed by the stepped surface between them, the inner peripheral surface of the cylindrical portion 52 of the annular member 56, and the tip end surface of the facing portion 54, and the state in which the removal of the annular groove is prevented by the facing portion 54, that is, The first mounting portion 46 is fitted to the tip of the facing portion 54 in a state where it is irremovably locked. The facing part
A substantially semicircular arc-shaped curved surface 57 is formed in the bent portion between the 54 and the cylindrical portion 52 during bending.

上記アーム部30の内周面50に圧入された環状部材56とガ
イドピン34との間にダストブーツ44を組み着けるに際し
ては、まず、アーム部30のガイド穴26内にガイドピン34
を嵌合する前に、ダストブーツ44の第1取付部46を環状
部材56の円筒部52の内周面に対向部54側から嵌め着け
る。このとき、その第1取付部46を環状部材56の円弧状
曲面57および対向部54に沿って滑らせつつ円筒部52の内
周面まで案内することができる。次いで、ガイドピン34
のスリーブ36をダストブーツ44を挿通しつつガイド穴26
に嵌合した後、そのスリーブ36の外周面に形成された環
状溝にダストブーツ44の第2取付部48を嵌め着けること
により、ダストブーツ44がアーム部30とガイドピン34と
の間に組み着けられる。
In assembling the dust boot 44 between the annular member 56 press-fitted into the inner peripheral surface 50 of the arm portion 30 and the guide pin 34, first, the guide pin 34 is inserted into the guide hole 26 of the arm portion 30.
The first mounting portion 46 of the dust boot 44 is fitted to the inner peripheral surface of the cylindrical portion 52 of the annular member 56 from the side of the facing portion 54 before fitting. At this time, the first mounting portion 46 can be guided to the inner peripheral surface of the cylindrical portion 52 while sliding along the arcuate curved surface 57 of the annular member 56 and the facing portion 54. Then, the guide pin 34
Insert the dust boot 44 through the sleeve 36 of the guide hole 26
The second mounting portion 48 of the dust boot 44 is fitted into the annular groove formed on the outer peripheral surface of the sleeve 36, so that the dust boot 44 is assembled between the arm portion 30 and the guide pin 34. Can be worn.

ここで、第7図は従来のディスクブレーキの要部を示す
図である。なお、以下の説明において前述の実施例と同
様の部分には同一の符号を付してその詳細な説明は省略
する。第7図において、アーム部30のガイド穴26開口側
内周面には切削加工により環状溝70が形成されており、
この環状溝70に第1取付部46が嵌め着けられている。こ
の環状溝70をキャリパ12をガイド穴26の軸心まわりに回
転させることなく切削加工により形成する場合には、通
常、切削機の主軸の回転中心およびその主軸に取り着け
られた切削工具の回転中心を互いに一致させる状態と両
回転中心を偏心させる状態とに切り換えるための切換え
機構が必要となって、構造が複雑で高価な切削機を要す
るという問題があった。これに対し、第8図に示すよう
に、一端部側において第1取付部72と接着された円筒状
部材74を他端部側においてアーム部30のガイド穴26開口
側内周面に圧入すれば、第7図のような環状溝70を形成
する必要がなくなって前記のような高価な切削機を要し
ないのであるが、円筒状部材74よび第1取付部72の接着
工程を要するためディスクブレーキのコストが増大する
ことが避け難い。また、第9図に示すように、一端に外
向きフランジ78を有する円筒状部材76をアーム部30の外
周面に他端側から圧入し、その円筒状部材76の外周面に
外向きフランジ78により抜けが阻止された状態で第1取
付部80を嵌め着けるようにしても第8図の場合と同様の
効果が得られるのであるが、この場合には、第1取付部
80の円筒状部材76の外周面への嵌着け作業が外向きフラ
ンジ78により阻害されて第1取付部80の嵌着け作業を円
滑に為し難い。このことは、一端に内向きフランジを有
する円筒状部材をガイド部のガイド穴開口側内周面に圧
入し、その円筒状部材の内周面に内向きフランジにより
抜けが阻止された状態で第1取付部を嵌め着ける場合に
おいても略同様である。
Here, FIG. 7 is a view showing a main part of a conventional disc brake. In the following description, the same parts as those in the above-described embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. In FIG. 7, an annular groove 70 is formed on the inner peripheral surface of the arm portion 30 on the opening side of the guide hole 26 by cutting,
The first mounting portion 46 is fitted in the annular groove 70. When forming the annular groove 70 by cutting without rotating the caliper 12 around the axis of the guide hole 26, usually, the rotation center of the spindle of the cutting machine and the rotation of the cutting tool attached to the spindle. There is a problem that a switching mechanism for switching between a state where the centers are coincident with each other and a state where the two rotation centers are eccentric are required, which requires a cutting machine having a complicated structure and an expensive structure. On the other hand, as shown in FIG. 8, the cylindrical member 74 adhered to the first mounting portion 72 on one end side is press-fitted on the inner peripheral surface of the arm portion 30 on the opening side of the guide hole 26 on the other end side. In this case, it is not necessary to form the annular groove 70 as shown in FIG. 7 and the expensive cutting machine as described above is not required, but since the step of bonding the cylindrical member 74 and the first mounting portion 72 is required, the disk It is inevitable that the cost of braking will increase. Further, as shown in FIG. 9, a cylindrical member 76 having an outward flange 78 at one end is press-fitted into the outer peripheral surface of the arm portion 30 from the other end side, and the outward flange 78 is attached to the outer peripheral surface of the cylindrical member 76. Even if the first mounting portion 80 is fitted in the state where the detachment is prevented by, the same effect as in the case of FIG. 8 can be obtained, but in this case, the first mounting portion 80 is
The work of fitting 80 onto the outer peripheral surface of the cylindrical member 76 is hindered by the outward flange 78, and it is difficult to smoothly carry out the work of fitting the first mounting portion 80. This means that a cylindrical member having an inward flange at one end is press-fitted into the inner peripheral surface of the guide portion on the guide hole opening side, and the inner peripheral surface of the cylindrical member is prevented from coming off by the inward flange. The same applies when the 1 mounting portion is fitted.

これに対し、本実施例によれば、アーム部30のガイド穴
26開口側の内周面50に圧入された環状部材56の円筒部52
の内周面に対向部54により抜けが阻止された状態でダス
トブーツ44の第1取付部46が嵌め着けられるので、第7
図に示す従来の場合のようにアーム部30の内周面に機械
加工により環状溝70を形成する必要がなく、構造が複雑
で高価な切削機を要しないとともに、ダストブーツ44と
環状部材56との接着工程を要せず、第8図の場合に比べ
てディスクブレーキのコストを低減し得る。
On the other hand, according to the present embodiment, the guide hole of the arm 30 is
26 Cylindrical portion 52 of the annular member 56 press-fitted into the inner peripheral surface 50 on the opening side
Since the first mounting portion 46 of the dust boot 44 is fitted to the inner peripheral surface of the dust boot 44 while being prevented from coming off by the facing portion 54,
Unlike the conventional case shown in the figure, it is not necessary to form the annular groove 70 on the inner peripheral surface of the arm portion 30 by machining, so that a complicated structure and an expensive cutting machine are not required, and the dust boot 44 and the annular member 56 are provided. The cost of the disc brake can be reduced as compared with the case of FIG.

また、本実施例によれば、ダストブーツ44の第1取付部
46を環状部材56の円筒部52の内周面に対向部54側から嵌
め着ける際には、その第1取付部46を環状部材56の円弧
状曲面57および対向部54に沿って滑らせつつ円筒部52の
内周面まで案内することができるため、第1取付部46の
環状部材56への嵌着け作業すなわちアーム部30への取着
け作業を第9図の場合に比べて円滑に行うことができ
る。
Further, according to the present embodiment, the first mounting portion of the dust boot 44 is
When the 46 is fitted on the inner peripheral surface of the cylindrical portion 52 of the annular member 56 from the facing portion 54 side, the first mounting portion 46 is slid along the arcuate curved surface 57 of the annular member 56 and the facing portion 54. Since the inner peripheral surface of the cylindrical portion 52 can be guided, the work of fitting the first mounting portion 46 to the annular member 56, that is, the work of mounting the arm portion 30 can be performed more smoothly than in the case of FIG. be able to.

なお、前述の実施例では、環状部材56の対向部54は円筒
部52の全周に亘って設けられているが、円筒部52の周方
向所定間隔毎に複数の対向部を設けてもよい。
In the above embodiment, the facing portion 54 of the annular member 56 is provided over the entire circumference of the cylindrical portion 52, but a plurality of facing portions may be provided at predetermined intervals in the circumferential direction of the cylindrical portion 52. .

また、前述の実施例では、対向部54は円筒部52の内周面
と略密着するまで折り曲げられて円筒部52と平行を成し
ているが、第1取付部46を円弧状曲面および対向部に沿
って滑らかに嵌め着けることができる限りにおいて、対
向部と円筒部との間に所定の間隙が設けられていてもよ
いし、対向部は円筒部に対して比較的小さい角度で傾斜
させられていてもよい。
Further, in the above-described embodiment, the facing portion 54 is bent to be in close contact with the inner peripheral surface of the cylindrical portion 52 and is parallel to the cylindrical portion 52. As long as it can be fitted smoothly along the part, a predetermined gap may be provided between the facing part and the cylindrical part, and the facing part is inclined at a relatively small angle with respect to the cylindrical part. It may be.

また、前述の実施例では、内周側に対向部54を有する環
状部材56の円筒部52がアーム部30のガイド穴26開口側の
内周面50に圧入されており且つその円筒部52の内周面に
ダストブーツ44の第1取付部46が嵌め着けられるように
構成されているが、必ずしもそのように構成する必要は
なく、たとえば、第4図に示すように、内周側に対向部
54を有する環状部材62の円筒部52をアーム部30のガイド
穴26の開口側の外周面63に圧入してその円筒部52の内周
面に第1取付部46を嵌め着けてもよいし、あるいは第5
図に示すように、外周側に対向部64を有する環状部材65
の円筒部52をアーム部30の前記内周面50に圧入してその
円筒部52の外周面に第1取付部66を嵌め着けてもよく、
更に第6図に示すように、外周側に対向部64を有する環
状部材68の円筒部52をアーム部30の前記外周面63に圧入
してその円筒部52の外周面に第1取付部66を嵌め着けて
もよい。
Further, in the above-described embodiment, the cylindrical portion 52 of the annular member 56 having the facing portion 54 on the inner peripheral side is press-fitted into the inner peripheral surface 50 of the arm portion 30 on the opening side of the guide hole 26, and the cylindrical portion 52 The first mounting portion 46 of the dust boot 44 is configured to be fitted to the inner peripheral surface, but it is not necessarily required to be configured as such. For example, as shown in FIG. 4, it faces the inner peripheral side. Department
The cylindrical portion 52 of the annular member 62 having 54 may be press-fitted into the outer peripheral surface 63 of the arm portion 30 on the opening side of the guide hole 26, and the first mounting portion 46 may be fitted to the inner peripheral surface of the cylindrical portion 52. Or the fifth
As shown in the figure, an annular member 65 having a facing portion 64 on the outer peripheral side.
The cylindrical portion 52 may be press-fitted into the inner peripheral surface 50 of the arm portion 30 and the first mounting portion 66 may be fitted to the outer peripheral surface of the cylindrical portion 52.
Further, as shown in FIG. 6, the cylindrical portion 52 of the annular member 68 having the facing portion 64 on the outer peripheral side is press-fitted into the outer peripheral surface 63 of the arm portion 30 and the first mounting portion 66 is mounted on the outer peripheral surface of the cylindrical portion 52. May be fitted.

その他、本考案はその趣旨を逸脱しない範囲において種
々変更が加えられ得るものである。
In addition, the present invention can be variously modified without departing from the spirit thereof.

【図面の簡単な説明】[Brief description of drawings]

第1図は第2図におけるA矢視図の要部を拡大して示す
図であって、一部を断面にして示す図である。第2図は
本考案が適用されたディスクブレーキの要部を示す平面
図である。第3図は第1図の要部拡大図である。第4図
乃至第6図は本考案の他の例をそれぞれ示す図であっ
て、第3図は相当する図である。第7図は従来のディス
クブレーキの要部を示す図であって、第3図に対応する
図である。第8図および第9図は第7図の従来のディス
クブレーキに対する一改善例をそれぞれ示す図であっ
て、第3図に対応する図である。 12:キャリパ 24:トルクプレート(支持部材) 26:ガイド穴 28,30:アーム部(ガイド部) 32,34:ガイドピン 44:ダストブーツ 46,66:第1取付部 48:第2取付部 52:円筒部 54,64:対向部 56,62,65,68:環状部材 57:円弧状曲面
FIG. 1 is an enlarged view of a main part of the view as seen from the direction of arrow A in FIG. FIG. 2 is a plan view showing an essential part of a disc brake to which the present invention is applied. FIG. 3 is an enlarged view of a main part of FIG. FIGS. 4 to 6 are views showing other examples of the present invention, and FIG. 3 is a corresponding view. FIG. 7 is a view showing a main part of a conventional disc brake and is a view corresponding to FIG. FIG. 8 and FIG. 9 are views respectively showing one improvement example with respect to the conventional disc brake of FIG. 7, and are views corresponding to FIG. 12: Caliper 24: Torque plate (support member) 26: Guide hole 28,30: Arm part (guide part) 32,34: Guide pin 44: Dust boot 46,66: First mounting part 48: Second mounting part 52 : Cylindrical part 54,64: Opposing part 56,62,65,68: Annular member 57: Arc curved surface

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】ガイド穴が形成されたガイド部および該ガ
イド穴に摺動可能に嵌合されるガイドピンの一方が設け
られたキャリパと、該ガイド部およびガイドピンの他方
が設けられ、該ガイド部のガイド穴と該ガイドピンとの
嵌合に基づいて該キャリパを移動可能に支持する支持部
材と、軸心方向において所定間隔隔てた位置に環状を成
す第1取付部および第2取付部を有し、該第1取付部が
前記ガイド部のガイド穴の開口側に取り付けられ且つ該
第2取付部が前記ガイドピンに取り付けられることによ
り該ガイド部およびガイドピンの摺動面を保護するダス
トブーツとを備えた形式のディスクブレーキにおいて、 円筒部と、該円筒部の一端部を少なくとも外側面が略半
円の円弧状曲面を成すように内周側または外周側へ略18
0°折り曲げることにより形成されて該円筒部と対向す
る対向部とを有し、該円筒部の外周面または内周面が前
記ガイド部の開口側の内周面または外周面に密着するよ
うに該円筒部の他端部側から該ガイド部に圧入されると
とともに、前記ダストブーツの第1取付部が前記一端部
側から前記円弧状曲面および前記対向部に案内されつつ
該対向部の先端を越えて嵌め着けられ、該対向部の先端
で該第1取付部を離脱不能に係止する金属製の環状部材
を設けたことを特徴とするディスクブレーキ。
1. A caliper provided with a guide portion having a guide hole and one guide pin slidably fitted in the guide hole, and the other of the guide portion and the guide pin. A support member that movably supports the caliper based on the fitting between the guide hole of the guide portion and the guide pin, and a first mounting portion and a second mounting portion that form an annular shape at positions separated by a predetermined distance in the axial direction. Dust for protecting the guide portion and the sliding surface of the guide pin by attaching the first attaching portion to the opening side of the guide hole of the guide portion and attaching the second attaching portion to the guide pin. In a disc brake of a type including a boot, a cylindrical portion and one end portion of the cylindrical portion are formed to have an arc-shaped curved surface of which at least an outer surface is a substantially semicircle, and the inner surface or the outer peripheral side is substantially 18
It has a facing portion that is formed by bending by 0 ° and faces the cylindrical portion, so that the outer peripheral surface or the inner peripheral surface of the cylindrical portion closely adheres to the inner peripheral surface or the outer peripheral surface on the opening side of the guide portion. While being press-fitted into the guide portion from the other end side of the cylindrical portion, the first mounting portion of the dust boot is guided from the one end side to the arcuate curved surface and the facing portion while the tip of the facing portion is being guided. A disc brake, comprising: a metal annular member that is fitted over and that locks the first mounting portion irremovably at the tip of the facing portion.
JP1989080939U 1989-07-10 1989-07-10 Disc brake Expired - Lifetime JPH0736189Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989080939U JPH0736189Y2 (en) 1989-07-10 1989-07-10 Disc brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989080939U JPH0736189Y2 (en) 1989-07-10 1989-07-10 Disc brake

Publications (2)

Publication Number Publication Date
JPH0320732U JPH0320732U (en) 1991-02-28
JPH0736189Y2 true JPH0736189Y2 (en) 1995-08-16

Family

ID=31626429

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989080939U Expired - Lifetime JPH0736189Y2 (en) 1989-07-10 1989-07-10 Disc brake

Country Status (1)

Country Link
JP (1) JPH0736189Y2 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6157500A (en) * 1984-08-30 1986-03-24 三菱電機株式会社 Angular momentum control system of artificial satellite
JPS6315620U (en) * 1986-07-14 1988-02-02

Also Published As

Publication number Publication date
JPH0320732U (en) 1991-02-28

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