JPS63215788A - Method of bonding friction material - Google Patents
Method of bonding friction materialInfo
- Publication number
- JPS63215788A JPS63215788A JP62049183A JP4918387A JPS63215788A JP S63215788 A JPS63215788 A JP S63215788A JP 62049183 A JP62049183 A JP 62049183A JP 4918387 A JP4918387 A JP 4918387A JP S63215788 A JPS63215788 A JP S63215788A
- Authority
- JP
- Japan
- Prior art keywords
- friction material
- backing plate
- bonding
- distortion
- strain
- 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
Links
- 239000002783 friction material Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims description 12
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 4
- 239000000853 adhesive Substances 0.000 abstract description 8
- 230000001070 adhesive effect Effects 0.000 abstract description 7
- 229920001187 thermosetting polymer Polymers 0.000 abstract description 7
- 238000012856 packing Methods 0.000 abstract 2
- 230000010354 integration Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- F16D2069/005—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces having a layered structure
Landscapes
- Braking Arrangements (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は摩擦材の接着方法に関し、特に接着後一体化し
た摩擦材とバッキングプレートの歪を極めて小さくする
ことを目的としたものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for adhering friction materials, and in particular is aimed at extremely minimizing distortion of the friction material and backing plate that are integrated after adhesion.
摩擦材をバッキングプレートに固定するには第３図に示
すように摩擦材（４°）とバッキングプレート（１゛）
との間に熱硬化性接着剤（５゛）を挾んで高温で該接着
剤（５゛）を硬化させて接着する方法が一般的である。To fix the friction material to the backing plate, as shown in Figure 3, attach the friction material (4°) and the backing plate (1°).
A common method for bonding is to sandwich a thermosetting adhesive (5') between the two and harden the adhesive (5') at high temperature.
ところが通常は摩擦材とバッキングプレートとは異なる
材料を用いるため熱膨張率が異なっている。従って熱硬
化性接着剤で接着する場合、硬化時に高温中に置かれた
摩擦材及びバッキングプレートは硬化終了時、即ち常温
に降温した時に両者は収縮量が異なるため形状の変化、
所謂歪が発生してしまい、このため使用時に摩擦材の全
面積がディスクに接触しない等の不具合が生じて効率が
低下したり振動を発生するこζがある。However, since the friction material and the backing plate are usually made of different materials, they have different coefficients of thermal expansion. Therefore, when bonding with a thermosetting adhesive, the friction material and backing plate placed in a high temperature during curing will shrink in different amounts when the curing is completed, that is, when the temperature drops to room temperature, resulting in a change in shape.
This results in so-called distortion, which may cause problems such as the entire area of the friction material not coming into contact with the disk during use, resulting in reduced efficiency and generation of vibration.
そこで現在硬化終了時の歪を最少にするために、次のよ
うな対策がとられている。即ち、硬化終了時に発生する
歪と逆向きで同じ大きざの歪をめらかしめ硬化時に摩擦
材とバッキングプレートに与えて両者を接着することに
より常温に降温した時に歪のない形状を得るというもの
である。また他の対策は硬化の終了する常温に降温する
時収縮量の違いにより摩擦材の内部に残留する応力がバ
ッキングプレートに大きな変形力を与えるため歪が生じ
てしまうことは明らかであるので、摩擦材の内部応力を
軽減すれば歪は極めて小さくなることからバッキングプ
レート上で摩擦材を平面的にいくつかに分断すればよく
、その方法として摩擦材を切断分離（セグメント化）し
てバッキングプレート上に接着するか、摩擦材に加工溝
を入れて接着する方法が採られている。Therefore, the following measures are currently being taken to minimize distortion at the end of curing. In other words, by smoothing the distortion of the same size and in the opposite direction to the distortion that occurs at the end of curing, and applying it to the friction material and backing plate during curing to bond them together, a shape without distortion is obtained when the temperature drops to room temperature. It is. Another countermeasure is that it is clear that the stress remaining inside the friction material due to the difference in the amount of shrinkage when the temperature drops to room temperature where curing ends will give a large deformation force to the backing plate, causing distortion. If the internal stress of the material is reduced, the strain will be extremely small, so it is sufficient to divide the friction material into several pieces on the backing plate. The method of adhering to the friction material is either by gluing it to the friction material, or by cutting grooves into the friction material and adhering it.
しかしながら上記のような対策に対してはそれぞれ次の
問題がおる。即ち、硬化時に逆歪を与えておく方法は摩
擦材の材質、形状やバッキングプレートの材質、形状が
異なるため逆歪を機械的に与えるのに用いる治具が多数
必要となり、あまり工業的とはいい難い。さらにこの場
合使用中に発生する摩擦熱により接触部材の温度が上昇
することによる歪は避けられない。However, each of the above measures has the following problems. In other words, the method of applying reverse strain during curing requires a large number of jigs used to mechanically apply reverse strain because the material and shape of the friction material and the material and shape of the backing plate are different, so this method is not very industrial. Good and difficult. Furthermore, in this case, distortion due to an increase in the temperature of the contact member due to frictional heat generated during use is unavoidable.
また摩擦材をセグメント化する方法は歪に対しての効果
は大きいが、摩擦材をセグメント化するための切断工数
及び切断により小片となった摩擦材をバッキングプレー
トに接着する工数が大幅に増大し、コストアップにつな
がってしまう。Furthermore, although the method of segmenting the friction material has a large effect on distortion, it significantly increases the man-hours required for cutting the friction material into segments and for adhering the friction material that has become small pieces due to cutting to the backing plate. , leading to an increase in costs.
さらに摩擦材に加工溝を入れる方法は加工溝の深さを深
くしないと所期の効果が得難く、又加工溝の深さを深く
すると摩擦材はスリット部より分離し易いという欠点を
伴う。Furthermore, the method of forming machined grooves in the friction material has the drawback that it is difficult to obtain the desired effect unless the depth of the machined grooves is made deep, and when the depth of the machined grooves is made deep, the friction material is more likely to separate from the slit portion.
本発明はこれに鑑み種々検討の結果、摩擦材の内部応力
を小さくし、かつ摩擦材がバッキングプレートから分離
せず、ざらに接着工数の増加もない摩擦材の接着方法を
開発したもので、摩擦材をバッキングプレートもしくは
補強板に接着するに当り、内部応力を小さくするための
長いスリットを切込んだ摩擦材を用いることを特徴とす
る摩擦材の接着方法を特徴とするものでおる。In view of this, as a result of various studies, the present invention has developed a friction material bonding method that reduces the internal stress of the friction material, does not separate the friction material from the backing plate, and does not significantly increase the number of bonding steps. This method is characterized by using a friction material having long slits cut therein to reduce internal stress when bonding the friction material to a backing plate or a reinforcing plate.
本発明によれば摩擦材は接着に先立って接着後の内部応
力を小さくするための長いスリットを切込んで、切断分
離（セグメント化）することなく部分結合の状態となっ
ており、これを熱膨張率の異なるバッキングプレートな
いしは補強板に接着しても温度変化による歪みの発生を
極小にすることができる。According to the present invention, prior to adhesion, long slits are cut into the friction material to reduce the internal stress after adhesion, and the friction material is partially bonded without being cut and separated (segmented). Even when bonded to a backing plate or reinforcing plate having a different coefficient of expansion, distortion caused by temperature changes can be minimized.
上記の切込まれる長いスリットは普通各摩擦材当り隔設
された複数の直線状のものからなり、各直線状のスリッ
トの外延部又は内延部に切込まれていない接続部が残さ
れている。The long slits mentioned above usually consist of a plurality of linear slits spaced apart for each friction material, and uncut connections are left in the outer or inner extension of each linear slit. There is.
複数本の長いスリットとしての切り込みを摩擦材に設け
るのは、摩擦材をいくつかの応力部分に分けるためであ
り、これによって内部応力を軽減でき、バッキングプレ
ートの歪を極小に抑えることができるからである。また
上記切り込み同志の間（内延部）や該切り込みの外延部
に非切り込み部（摩擦材の接続部）を設けるのは接着作
業時に摩擦材が完全に分離してしまうのを防ぐためであ
る。The reason why cuts in the form of multiple long slits are provided in the friction material is to divide the friction material into several stressed parts, which can reduce internal stress and minimize distortion of the backing plate. It is. In addition, the non-cut portions (friction material connection portions) are provided between the above-mentioned notches (inner extension portions) and in the outer extension portions of the notches to prevent the friction material from completely separating during the bonding process. .
［実施例］ 本発明の実施例を図面に基づき説明する。[Example] Embodiments of the present invention will be described based on the drawings.
実施例（Ｉ）
第１図に示すように略扇形状のバッキングプレート（１
）上に該扇形の円弧の仮想中心に向ってそれぞれ１カ所
の非切り込み部（２）を中間に残して２本の直線状の長
い切り込み（３ａ） （３ｔ））をくり扱いた摩擦材（
４）を熱硬化性接着剤（５）を用いて通常の条件にて高
温で硬化させ常温に冷却して接着を終了した後、歪量を
測定したところ０．３〜０．５ ａであった。Example (I) As shown in FIG.
), two linear long cuts (3a) (3t)) are cut out toward the virtual center of the fan-shaped arc, leaving one non-cut part (2) in the middle.
4) was cured at high temperature under normal conditions using the thermosetting adhesive (5), and after cooling to room temperature to complete the bonding, the amount of strain was measured and was found to be 0.3 to 0.5 a. Ta.
実施例（ＩＩ＞
第２図に示すように略扇形状のバッキングプレート（１
）上に該扇形の円弧の仮想中心に向ってその両端にそれ
ぞれ非切り込み部（２ａ）（２ｂ）を残して２本の直線
状の長い切り込み（３）をくり疲いた摩擦材（４）を熱
硬化性接着剤（５）を用いて通常の条件にて高温で硬化
させ常温に冷却して接着を終了し、歪量を測定したとこ
ろ０．３〜０．５ｍであった。Example (II> As shown in FIG. 2, a substantially fan-shaped backing plate (1
), cut two linear long cuts (3) on the top of the fan-shaped arc toward the virtual center, leaving non-cut portions (2a) and (2b) at both ends of the worn friction material (4). Using a thermosetting adhesive (5), the bonding was completed by curing at a high temperature under normal conditions and cooling to room temperature, and the amount of strain was measured and was found to be 0.3 to 0.5 m.
比較のため第３図に示す従来の方法による切り込みのな
い平坦な摩擦材（４°）をバッキングプレート（１’）
上に熱硬化性接着剤〔５′）を用いて通常の条件で接着
した後、歪量を測定したところ３〜４ｍであり、本発明
によれば歪は約１７１０となり大幅に低減されることが
判る。For comparison, a flat friction material without notches (4°) made by the conventional method shown in Figure 3 was used as a backing plate (1').
After bonding under normal conditions using a thermosetting adhesive [5'], the amount of strain was measured and was found to be 3 to 4 m, and according to the present invention, the strain was approximately 1710, which was significantly reduced. I understand.
また本発明実施例はいずれも従来例と同じ接着工数で作
業を行なうことができた。In addition, all of the embodiments of the present invention were able to carry out the work with the same number of bonding steps as the conventional example.
このように本発明によれば摩擦材をバッキングプレート
等に接着により一体化した後の歪をきわめて小さくでき
る等工業上顕著な効果を奏するものである。As described above, according to the present invention, the strain after the friction material is integrated with the backing plate or the like by adhesion can be extremely reduced, and other industrially significant effects can be achieved.
第１図及び第２図はそれぞれ本発明の一実施例を示す斜
視図、第３図は従来例を示す斜視図である。
１．１“・・・バッキングプレート
２、２ａ、 ２ｂ・・・非切り込み部
３、３ａ、 ３ｂ・・・切り込み部
４．４′・・・摩擦材
５．５°・・・熱硬化性接着剤
第１図
霜
ｂ
第２図
ａ
ｂ
第３図FIGS. 1 and 2 are perspective views showing one embodiment of the present invention, and FIG. 3 is a perspective view showing a conventional example. 1.1"... Backing plate 2, 2a, 2b... Non-cut portion 3, 3a, 3b... Cut portion 4.4'... Friction material 5.5°... Thermosetting adhesive Agent Figure 1 Frost b Figure 2 a b Figure 3
Claims (1)
着するに当り、内部応力を小さくするための長いスリッ
トを切込んだ摩擦材を用いることを特徴とする摩擦材の
接着方法。(1) A method for adhering a friction material, which comprises using a friction material cut with long slits to reduce internal stress when adhering the friction material to a backing plate or a reinforcing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62049183A JPS63215788A (en) | 1987-03-04 | 1987-03-04 | Method of bonding friction material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62049183A JPS63215788A (en) | 1987-03-04 | 1987-03-04 | Method of bonding friction material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63215788A true JPS63215788A (en) | 1988-09-08 |
Family
ID=12823924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62049183A Pending JPS63215788A (en) | 1987-03-04 | 1987-03-04 | Method of bonding friction material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63215788A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2697306A1 (en) * | 1992-10-26 | 1994-04-29 | Valeo | Friction clutch disc with friction lining and support disc - and intermediate elastic porous underlayer comprising adhesive matrix of heat hardening resin and impregnated reinforcement |
| JP2019529840A (en) * | 2016-10-05 | 2019-10-17 | タラノ・テクノロジー | Brake pad and brake unit for capturing dust |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58128543A (en) * | 1982-01-25 | 1983-08-01 | Nissin Kogyo Kk | Friction pad |
-
1987
- 1987-03-04 JP JP62049183A patent/JPS63215788A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58128543A (en) * | 1982-01-25 | 1983-08-01 | Nissin Kogyo Kk | Friction pad |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2697306A1 (en) * | 1992-10-26 | 1994-04-29 | Valeo | Friction clutch disc with friction lining and support disc - and intermediate elastic porous underlayer comprising adhesive matrix of heat hardening resin and impregnated reinforcement |
| JP2019529840A (en) * | 2016-10-05 | 2019-10-17 | タラノ・テクノロジー | Brake pad and brake unit for capturing dust |
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