JPH0565927A - Floating disc brake - Google Patents

Floating disc brake

Info

Publication number
JPH0565927A
JPH0565927A JP3254231A JP25423191A JPH0565927A JP H0565927 A JPH0565927 A JP H0565927A JP 3254231 A JP3254231 A JP 3254231A JP 25423191 A JP25423191 A JP 25423191A JP H0565927 A JPH0565927 A JP H0565927A
Authority
JP
Japan
Prior art keywords
caliper
pin
slide
disc brake
diamond
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.)
Pending
Application number
JP3254231A
Other languages
Japanese (ja)
Inventor
Katsuo Arai
井 勝 男 新
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.)
Akebono Research and Development Centre Ltd
Original Assignee
Akebono Research and Development Centre 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 Akebono Research and Development Centre Ltd filed Critical Akebono Research and Development Centre Ltd
Priority to JP3254231A priority Critical patent/JPH0565927A/en
Publication of JPH0565927A publication Critical patent/JPH0565927A/en
Pending legal-status Critical Current

Links

Landscapes

  • Braking Arrangements (AREA)

Abstract

PURPOSE:To reduce brake noise by coating the slide part surface of a caliper support mechanism with diamond like carbon containing Si by means of plasma CVD or the like. CONSTITUTION:A guide pin 3 and a sub-pin 4 with its sleeve fitted to a bolt by insertion are erectly provided at a support part 2 for supporting a caliper 1. These guide pin 3 and sub-pin 4 are slidably fitted into pin shoe moving holes 5 provided at the lateral arm parts of the caliper 1, that is, into the parts corresponding to the slide face of the caliper 1. The slide part surface of caliper support mechanism is then coated with diamond like carbon containing Si in a range of (C+Si) being 15-35at.% by means of plasma CVD or the like. With the application of this surface treatment of high hardness and the low coefficient of friction, there is no need to apply grease even in the case of a dry type, and brake noise can be reduced considerably.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の産業上の利用分野】本発明は、自動車、産業機
械等のフローティング型ディスクブレーキにおけるキャ
リパ支持機構に関し、該キャリパ支持機構のスライド部
分(スライドピン又はスライド面)の発錆の防止、この
無潤滑材中での潤滑性の向上に有効なものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a caliper support mechanism in a floating disc brake of an automobile, an industrial machine, etc., which prevents rusting of a slide portion (slide pin or slide surface) of the caliper support mechanism. It is effective for improving lubricity in a non-lubricated material.

【0002】[0002]

【従来の技術】従来、フローティング型ディスクブレー
キのキャリパのスライド部分には、Ni、Cr等の金属
メッキを行い、グリースを塗布しているが、メッキ硬さ
不足による摩耗、グリースの劣化、摩擦係数が高い等が
原因でキャリパのスライドが円滑に行われなくなり、そ
の結果、ブレーキノイズの発生やブレーキ性能の不安定
が生じていた。
2. Description of the Related Art Conventionally, a sliding portion of a caliper of a floating disc brake is plated with a metal such as Ni or Cr and grease is applied, but wear due to insufficient plating hardness, deterioration of grease, friction coefficient. The caliper did not slide smoothly due to the high value, and as a result, brake noise and brake performance were unstable.

【0003】[0003]

【発明が解決しようとする課題】本発明は、このような
事情に鑑みなされたものであって、キャリパ支持機構の
スライド部分に起因するブレーキノイズが少なく、ブレ
ーキ性能の安定したフローティング型ディスクブレーキ
を提供することをその課題するものである。
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a floating disc brake having stable brake performance with less brake noise due to the sliding portion of the caliper support mechanism. The challenge is to provide.

【0004】[0004]

【課題解決のために講じた手段】上記課題を解決するた
めに、ピンスライド式フローティング型ディスクブレー
キのキャリパ支持機構のスライド部分表面に、プラズマ
CVD等で、Si/(C+Si)が15〜35at.%
の範囲のSiを含んだダイヤモンドライクカーボンを被
覆した。
In order to solve the above problems, in order to solve the above problems, Si / (C + Si) of 15 to 35 at. %
Was coated with diamond-like carbon containing Si in the range.

【0005】[0005]

【作 用】本発明は、ピンスライド式フローティング
型ディスクブレーキのキャリパー支持機構のスライド部
分表面にプラズマCVD等で、Si/(C+Si)は1
5〜35at.%の範囲のSiを含んだダイヤモンドラ
イクカーボンを被覆し、高硬度で、低摩擦係数の表面処
理を施したので、乾式でも従来のようにグリース塗布を
必要とせず、ブレーキノイズが少なく、ブレーキ性能の
安定したブレイキが得られるようになった。
[Working] The present invention uses plasma CVD or the like on the sliding portion surface of the caliper support mechanism of a pin slide type floating disc brake, and Si / (C + Si) is 1
5-35 at. % Coated with diamond-like carbon containing Si, high hardness and low friction coefficient surface treatment, so even dry type does not require grease application unlike the conventional type, less brake noise, braking performance Now you can get a stable break.

【0006】[0006]

【実 施 例】次いで、本発明の実施例を図面を参照し
つつ説明する。図1は、本発明の一実施例であるフロー
ティング型ディスクブレーキの一部切断平面図であっ
て、キャリパ1を支持する支持部2にガイドピン3およ
びボルトにスリーブを嵌挿したサブピン4(即ち、スラ
イドピンに相当する)を立設し、これらガイドピンおよ
びサブピンがキャリパ1の左右の腕部のピン摺動穴5
(即ち、キャリパのスライド面に相当する)に摺動自在
に嵌合している。上記ガイドピンとキャリパの一方の腕
部のピン摺動穴の口部との間および上記サブピンとキャ
リパの他方の腕部のピン摺動穴の両側の口部との間はダ
ストブーツ6で覆われている。なお、ピン摺動穴5はキ
ャリパ1を支持する支持部2に、またピン(ガイドピ
ン、サブピン)はキャリパ1に設けてもよい。上記キャ
リパ支持機構におけるキャリパ1を支持する支持部2の
ピン(ガイドピン、サブピン)と、上記キャリパに該支
持部のピンと嵌合するピン摺動穴5およびこれらの表
面、即ちキャリパスライド部品およびそれらの表面の形
成を説明すると、 1)図1に示すように、予め、スライドピン等の対象部
品を成形加工、機械加工等により必要形状に作成し、 2)必要に応じて洗浄等の前処理を行い、その後、スパ
ッタリング、プラズマCVD等の方法で、上記キャリパ
のスライド部分表面にSiを含んだダイアモンドライク
カーボンを被覆する。この場合、Si/(C+Si)は
15〜35at.%の範囲とし、高硬度(Hv2000
〜6000)で、低摩擦係数(約0.05)の表面処理
を施す。上記のようにSi/(C+Si)を15〜35
at.%の範囲としたのは、15at.%以下ではSi
を含んだグラファイトカーボンが生成し、35at.%
以上ではアモルファスSiCが生成するため、摩擦係数
が高く、その変動も大きいためである。望ましくは、2
0〜25at.%の範囲にするのが良く、この範囲では
摩擦係数が最も低く、変動も少ない。 3)その後は、従来と同様に、必要に応じて組み立て等
の工程を行う。この表面処理は乾式でも摩擦係数が低い
ので、従来のようなグリース塗布は必要としない。さら
に、本発明によるフローティング型ディスクブレーキの
支持機構のスライド表面およびその作動性能等について
詳述する。上記のようにピンスライド式フローティング
型ディスクブレーキのガイドピンとサブピンを従来と同
様の工程を経て作製し、 a)これらピンを洗浄した後、プラズマCVD装置内に
設置し、下記「表 1」に示すような被覆条件でピンの
表面にSiを22at.%含んだダイヤモンドライクカ
ーボンを被覆する。
EXAMPLES Next, examples of the present invention will be described with reference to the drawings. FIG. 1 is a partially cutaway plan view of a floating type disc brake according to an embodiment of the present invention, in which a guide pin 3 is attached to a support portion 2 that supports a caliper 1 and a sub pin 4 (that is, a sleeve is inserted into a bolt). , Corresponding to slide pins), and these guide pins and sub pins are pin sliding holes 5 on the left and right arms of the caliper 1.
(That is, it corresponds to the slide surface of the caliper) and is slidably fitted. A dust boot 6 covers the space between the guide pin and the mouth of the pin sliding hole of one arm of the caliper, and the space between the sub-pin and the mouth of both sides of the pin sliding hole of the other arm of the caliper. ing. The pin sliding hole 5 may be provided in the support portion 2 that supports the caliper 1, and the pin (guide pin, sub pin) may be provided in the caliper 1. Pins (guide pins, sub-pins) of the support portion 2 that supports the caliper 1 in the caliper support mechanism, pin sliding holes 5 that fit into the pins of the support portion on the caliper, and their surfaces, that is, caliper slide parts and them. 1) As shown in FIG. 1, target parts such as slide pins are formed in advance into a required shape by molding, machining, etc., and 2) pretreatment such as cleaning is performed as necessary. After that, the surface of the slide portion of the caliper is coated with diamond-like carbon containing Si by a method such as sputtering or plasma CVD. In this case, Si / (C + Si) is 15 to 35 at. % Range and high hardness (Hv2000
˜6000) and low friction coefficient (about 0.05) surface treatment. As described above, Si / (C + Si) should be 15-35.
at. The range of 15% is 15 at. % Or less is Si
35 at. %
This is because, since amorphous SiC is generated, the coefficient of friction is high and its variation is large. Desirably 2
0 to 25 at. The range is preferably in the range of%, in which the coefficient of friction is the lowest and the fluctuation is small. 3) After that, as in the conventional case, steps such as assembling are performed as necessary. Since this surface treatment has a low friction coefficient even in the dry method, it is not necessary to apply grease as in the past. Further, the sliding surface of the support mechanism of the floating disc brake according to the present invention and its operation performance will be described in detail. As described above, the guide pins and sub-pins of the pin slide type floating disc brake are manufactured through the same steps as in the conventional method. A) After cleaning these pins, the pins are installed in the plasma CVD apparatus and shown in "Table 1" below. 22 at. Of Si on the surface of the pin under such coating conditions. % Diamond-like carbon is coated.

【表 1】 この時同時に、摩擦試験用試験片(スケールテスターT
P)にも、表面処理を施す。 b)この表面処理を施したピンを使用して、ディスクブ
レーキを組み立てる。 c)この組み立てたディスクブレーキは下記の「表
2」条件で作動耐久試験を行った後、ブレーキノイズ評
価試験を行い、摩擦試験用試験片では摩擦試験を行っ
た。比較品として、従来のNiメッキをしたピンを使用
して、グリース塗布したディスクブレーキでも同様の試
験を行った。 なお、摩擦試験条件として、 制 動 開始温度 120℃ 制 動 開始速度 18m/s 制 動 圧 力 10kg/cm2 慣性モーメント 0.04kgms2 TPの大きさ 82φ×t=6 制 動 回 数 200回 のもとで行なった。また、相手材摩擦試験条件は「表
3」に示す。ブレーキノイズ評価試験の結果、本発明品
は「表 4」に示すようにブレーキノイズが発生せず、
「表 5」に示すように摩擦係数が極めて低く安定して
おり、自己および相手摩擦材の摩耗も極めて少なかっ
た。
[Table 1] At the same time, a friction test piece (scale tester T
Surface treatment is also applied to P). b) Assemble the disc brake using the surface-treated pin. c) The assembled disc brake is shown in the table below.
After performing the operation durability test under the condition of "2", the brake noise evaluation test was performed, and the friction test piece was subjected to the friction test. As a comparative product, a similar Ni-plated pin was used, and a similar test was conducted with a grease-coated disc brake. Incidentally, the friction as the test condition, Braking start temperature 120 ° C. dynamic braking start speed 18m / s dynamic braking pressure 10 kg / cm 2 moment of inertia 0.04kgms 2 TP size 82φ × t = 6 dynamic braking times of 200 times I did it under the ground. The friction test conditions for the mating material are shown in the table.
3 ”. As a result of the brake noise evaluation test, the product of the present invention did not generate brake noise as shown in "Table 4".
As shown in "Table 5", the coefficient of friction was extremely low and stable, and the wear of the self and mating friction materials was also extremely small.

【表 2】 [Table 2]

【表 3】 [Table 3]

【表 4】 [Table 4]

【表 5】 [Table 5]

【0007】[0007]

【効 果】上記のようにフローティング型ディスクブ
レーキのキャリパスライド表面(ピンまたは面)に、硬
さがHv2000〜6000と硬く摩擦係数が約0.0
5と低いSiを含んだダイアモンドライクカーボンを被
覆するため、従来、キャリパスライド部に起因していた
問題点、即ち、メッキ硬さ不足による摩耗、グリースの
劣化、摩擦係数が高い等が原因でキャリパのスライドが
円滑に行われなくなり、その結果、ブレーキノイズの発
生やブレーキ性能の不安定が解消し、ブレーキノイズが
少なく、性能の安定したブレーキが得られるようになっ
た。
[Effect] As described above, the caliper slide surface (pin or surface) of the floating disc brake has a hardness of Hv 2000 to 6000 and a friction coefficient of about 0.0.
Since diamond-like carbon containing Si as low as 5 is covered, the caliper slide part has conventionally had problems such as wear due to insufficient plating hardness, grease deterioration, and high friction coefficient. As a result, the brakes did not slide smoothly, and as a result, the occurrence of brake noise and instability of brake performance were eliminated, and brake noise was reduced and stable performance was obtained.

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

【図1】ピンスライド式フローティング型ディスクブレ
ーキの一部切断平面図である。
FIG. 1 is a partially cutaway plan view of a pin slide type floating disc brake.

【符号の説明】[Explanation of symbols]

1・・・キャリパ 2・・・支持部 3・・・ガイドピン 4・・・サブピン 5・・・ピン摺動穴 6・・・ダストブーツ 1 ... Caliper 2 ... Supporting part 3 ... Guide pin 4 ... Sub pin 5 ... Pin sliding hole 6 ... Dust boot

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】ピンまたは面スライド式フローティング型
ディスクブレーキのキャリパ支持機構のスライド部分表
面に、プラズマCVD等で、Si/(C+Si)が15
〜35at.%の範囲のSiを含んだダイヤモンドライ
クカーボンを被覆したフローティング型ディスクブレー
キ。
1. A Si / (C + Si) of 15 is formed by plasma CVD or the like on the slide portion surface of a caliper support mechanism of a pin or surface slide type floating disc brake.
~ 35 at. Floating type disc brake coated with diamond-like carbon containing Si in the range of%.
JP3254231A 1991-09-06 1991-09-06 Floating disc brake Pending JPH0565927A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3254231A JPH0565927A (en) 1991-09-06 1991-09-06 Floating disc brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3254231A JPH0565927A (en) 1991-09-06 1991-09-06 Floating disc brake

Publications (1)

Publication Number Publication Date
JPH0565927A true JPH0565927A (en) 1993-03-19

Family

ID=17262088

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3254231A Pending JPH0565927A (en) 1991-09-06 1991-09-06 Floating disc brake

Country Status (1)

Country Link
JP (1) JPH0565927A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7815028B2 (en) 2002-05-24 2010-10-19 Jtekt Corporation Clutch plate, friction clutch, and coupling device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7815028B2 (en) 2002-05-24 2010-10-19 Jtekt Corporation Clutch plate, friction clutch, and coupling device

Similar Documents

Publication Publication Date Title
EP1013779A3 (en) Method of treating and smoothing sliding surface
WO2004033757A3 (en) Tool with wear resistant low friction coating and method of making the same
US3793195A (en) Coated bearing surfaces
JPH0565927A (en) Floating disc brake
JP2000291800A (en) Piston ring
CN110468259A (en) A kind of preparation method of wear-resistant hydraulic pump component
EP1167761A3 (en) Swash plate type compressor
US5014827A (en) Actuation piston for disc brake with vibration attenuator
GB2137123A (en) Machine Tool Spindle with Coated Socket
ATE215997T1 (en) METHOD FOR WEAR COATING A YANKEE DRYER
US5934416A (en) Floating caliper-disc type brake
JPH07280005A (en) Pad returning mechanism for disk brake
CN110484696A (en) A kind of preparation method of the hydraulic pump component of antifriction antiwear
GB1194096A (en) Method for the Dry Lubrication of Mechanical Components
EP0831206A1 (en) Valve device for engine
JPS5943238A (en) Friction material
KR20150037737A (en) Internal combustion engine jacket
JP4823616B2 (en) Sliding unit and sliding method
JP2000320674A (en) Low friction material and manufacture thereof
JPS53141003A (en) Production of magnetic disc
US2966722A (en) Irregular surface diamond burnishing tool
JPH064909B2 (en) Mold
JP2017075401A (en) Friction adjustment interface between two components made of nickel, nickel alloy or cobalt-chromium alloy moving relatively at high temperature
JPH01236417A (en) Magnetic head and magnetic recording device
JP2000179593A (en) Disk brake device