JP2002098177A - Disc brake pad - Google Patents
Disc brake padInfo
- Publication number
- JP2002098177A JP2002098177A JP2000286207A JP2000286207A JP2002098177A JP 2002098177 A JP2002098177 A JP 2002098177A JP 2000286207 A JP2000286207 A JP 2000286207A JP 2000286207 A JP2000286207 A JP 2000286207A JP 2002098177 A JP2002098177 A JP 2002098177A
- Authority
- JP
- Japan
- Prior art keywords
- back plate
- weight
- brake pad
- iron
- resin
- 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
Landscapes
- Braking Arrangements (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ディスクブレーキ
パッド、特に樹脂製裏板をもつディスクブレーキパッド
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc brake pad, and more particularly to a disc brake pad having a resin back plate.
【０００２】[0002]
【従来の技術】ディスクブレーキパッドは摩擦部材と金
属製の裏板により構成され、キャリパのピストンにより
該裏板に圧力を加え、円板状のディスクロータと摩擦さ
せる役目を有する。このためディスクブレーキパッド
は、高面圧、高負荷、高温、低温と様々な履歴、応力を
受けても破壊されることなく安定した制動力を示すこと
が求められている。これに耐えるために摩擦部材は耐熱
性、弾性率、剛性率の高い原料が用いられ、その摩擦部
材をキャリパに取り付ける前記裏板は強度の高い鉄製の
ものが多く用いられている。2. Description of the Related Art A disc brake pad is constituted by a friction member and a metal back plate, and has a function of applying pressure to the back plate by a caliper piston to cause friction with a disc rotor. For this reason, the disc brake pad is required to exhibit a stable braking force without being destroyed even when subjected to various histories and stresses such as high surface pressure, high load, high temperature and low temperature. In order to withstand this, a material having high heat resistance, elastic modulus, and rigidity is used for the friction member, and a high-strength iron back plate for attaching the friction member to the caliper is often used.
【０００３】近来車輌の低燃費化にともない車輌の軽量
化が進む中、ディスクブレーキパッドについても軽量化
が求められている。その方策の一つとして裏板の樹脂化
が検討されている。さらにディスクブレーキパッドの耐
食性の向上、振動吸収による鳴き性能の向上も裏板を樹
脂化する理由である。[0003] As vehicles have become lighter with the recent trend toward lower fuel efficiency of vehicles, disc brake pads are also required to be lighter. As one of the measures, use of resin for the back plate is being studied. Further, the improvement of the corrosion resistance of the disc brake pad and the improvement of the squealing performance due to vibration absorption are also the reasons why the back plate is made of resin.
【０００４】たとえば、特開昭５７−１２４１３４号公
報には繊維強化複合プラスチックを主体とするディスク
ブレーキパッド裏板が開示されている。そして補強用繊
維としては切断繊維と連続繊維とを併用することが望ま
しいとしている。For example, Japanese Patent Laying-Open No. 57-124134 discloses a back plate of a disc brake pad mainly composed of a fiber-reinforced composite plastic. It is stated that it is desirable to use both cut fibers and continuous fibers as reinforcing fibers.
【０００５】特開平５−２４０２７３号公報には金属板
を芯材とし、該芯材に繊維状物質をおよび熱硬化性樹脂
を含む材料で一体成形した成形品の裏板が開示されてい
る。さらに、特開平５−１８０２５１号公報には裏板と
摩擦部材とからなるディスクブレーキパッドにおいて、
裏板に繊維状物質および熱硬化性樹脂を含む成形体を用
いて軽量化した裏板の開示がある。Japanese Patent Application Laid-Open No. 5-240273 discloses a back plate of a molded product in which a metal plate is used as a core material and the core material is integrally formed of a material containing a fibrous substance and a thermosetting resin. Further, Japanese Patent Laid-Open No. 5-180251 discloses a disc brake pad including a back plate and a friction member.
There is a disclosure of a back plate that is reduced in weight by using a molded body containing a fibrous substance and a thermosetting resin for the back plate.
【０００６】[0006]
【発明が解決しようとする課題】ディスクブレーキパッ
ドを軽量化するには、金属を併用することなく高強度の
補強用繊維などを分散した樹脂で成形することが好まし
い。ところが、鉄製裏板を樹脂製とすることにより、従
来、鉄製裏板の持っていた特性である磁力が利用できな
くなり、製造工程内でのワークの搬送方法に従来の方法
に代わる新たな設備を導入しなければならない、という
不具合が発生している。In order to reduce the weight of the disc brake pad, it is preferable to use a resin in which high-strength reinforcing fibers are dispersed without using a metal. However, by making the iron back plate made of resin, the magnetic force, which was the characteristic of the iron back plate, cannot be used, and new equipment that replaces the conventional method for transferring the work in the manufacturing process is required. There is a problem that must be introduced.
【０００７】本願発明は上記の事情に鑑みてなされたも
ので、軽量化した樹脂製の裏板でありかつ製造工程内で
磁力が利用できる裏板をもつディスクブレーキパッドと
することを課題とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a disc brake pad having a lightweight resin back plate and a back plate capable of utilizing magnetic force in a manufacturing process. .
【０００８】[0008]
【課題を解決するための手段】本発明の第１のディスク
ブレーキパッドは、樹脂製裏板と摩擦部材とからなるデ
ィスクブレーキパッドであって、前記裏板は該裏板全体
量を１００重量％としたとき繊維径２００μｍ以下の鉄
系繊維を１〜５０重量％を含む熱硬化性樹脂で成形され
該裏板が磁力応答性を有することを特徴とする。A first disk brake pad according to the present invention is a disk brake pad comprising a resin back plate and a friction member, wherein the back plate occupies 100% by weight of the entire back plate. Wherein the iron-based fiber having a fiber diameter of 200 μm or less is molded from a thermosetting resin containing 1 to 50% by weight, and the back plate has magnetic responsiveness.
【０００９】本発明の第２のディスクブレーキパッド
は、樹脂製裏板と摩擦部材とからなるディスクブレーキ
パッドであって、前記裏板は該裏板全体量を１００重量
％としたとき平均粒子径５００μｍ以下の鉄粉または鉄
粉および酸化鉄粉を１〜５０重量％を含む熱硬化性樹脂
で成形され該裏板が磁力応答性を有することを特徴とす
る。A second disk brake pad according to the present invention is a disk brake pad comprising a resin back plate and a friction member, wherein the back plate has an average particle size when the total amount of the back plate is 100% by weight. It is characterized by being formed of a thermosetting resin containing 1 to 50% by weight of iron powder or iron powder and iron oxide powder of 500 μm or less, and wherein the back plate has magnetic responsiveness.
【００１０】[0010]
【発明の実施の形態】本発明のディスクブレーキパッド
は、樹脂製裏板と摩擦部材とからなり、該樹脂製裏板が
鉄系繊維または鉄粉を含む熱硬化性樹脂成形体で形成さ
れ、かつ、磁力応答性を有し該樹脂製裏板には摩擦部材
が接合されて構成されている。BEST MODE FOR CARRYING OUT THE INVENTION A disc brake pad according to the present invention comprises a resin back plate and a friction member, wherein the resin back plate is formed of a thermosetting resin molding containing iron-based fiber or iron powder. The resin back plate has magnetic responsiveness, and a friction member is joined to the resin back plate.
【００１１】前記鉄系繊維としては、スチールファイバ
ーなどが挙げられる。繊維の直径は、２００μｍ以下の
微細繊維が熱硬化性樹脂中に均一に分散させることがで
きるので、裏板としての強度および物性を保持する補強
剤として好ましい。繊維の直径が、２００μｍを超えて
大きい場合は、鉄系繊維を熱硬化性樹脂中に均一に分散
させることができなくなるので好ましくない。裏板中に
含まれる鉄系繊維の量は裏板の重量を１００重量％とし
たとき１〜５０重量％である。１重量％未満であると鉄
を添加して裏板を用いての磁力の活用ができなくなり好
ましくない、また、添加量が５０重量％を超えると裏板
の重量低減の効果が得られないので好ましくない。好ま
しくは５〜２０重量％である。この添加量により磁力を
利用してディスクブレーキパッドの搬送、組み付けを従
来の工程内で容易に行うことができる。すなわち、ディ
スクブレーキパッドが磁力で持ち上げられ搬送可能とな
り、従来通りパット製造工程内および組付工程内での部
品搬送が従来工程でおこなうことができる。[0011] Examples of the iron-based fibers include steel fibers. Since the fine fibers having a diameter of 200 μm or less can be uniformly dispersed in the thermosetting resin, they are preferable as a reinforcing agent that maintains the strength and physical properties of the back plate. If the diameter of the fiber is larger than 200 μm, it is not preferable because the iron-based fiber cannot be uniformly dispersed in the thermosetting resin. The amount of the iron-based fiber contained in the back plate is 1 to 50% by weight when the weight of the back plate is 100% by weight. If the amount is less than 1% by weight, it is not preferable because iron cannot be added and the magnetic force using the back plate cannot be used, and if the amount exceeds 50% by weight, the effect of reducing the weight of the back plate cannot be obtained. Not preferred. Preferably it is 5 to 20% by weight. By using the added amount, the disk brake pad can be easily transported and assembled by utilizing the magnetic force in the conventional process. That is, the disc brake pad is lifted by the magnetic force and can be transported, so that the parts can be transported in the pad manufacturing process and the assembling process in the conventional process as before.
【００１２】この鉄系繊維と共に用いる熱硬化性樹脂と
しては、フェノール樹脂、メラミン樹脂、エポキシ樹脂
などが利用できる。As the thermosetting resin used with the iron-based fiber, a phenol resin, a melamine resin, an epoxy resin and the like can be used.
【００１３】さらに、裏板の強度補強用として有機繊
維、カーボン繊維などの軽量の補強用繊維を併用して用
いることができる。さらに、必要に応じてセラミックス
系の補強用の充填剤を軽量化を阻害しない程度に強度や
成型品の形態安定製の目的で添加することができる。さ
らに、鉄系繊維と以下に述べる鉄粉と所定の添加量の範
囲で併用して同様の効果を得ることができる。Furthermore, lightweight reinforcing fibers such as organic fibers and carbon fibers can be used in combination for reinforcing the strength of the back plate. Further, if necessary, a ceramic-based reinforcing filler can be added for the purpose of strength and form stability of a molded product to such an extent that weight reduction is not hindered. Further, the same effect can be obtained by using the iron-based fiber and the iron powder described below in combination within a predetermined addition amount.
【００１４】本発明においては鉄系繊維に代わって、鉄
粉を用いて裏板を製造することができる。該鉄粉として
は平均粒子径５００μｍ以下、好ましくは０．１〜１０
μｍ程度の鉄粉を用いることができる。さらに、鉄粉に
酸化鉄粉を併用して用いてもよい。ディスクブレーキパ
ッドの裏板中に鉄粉が存在することで鉄系繊維の場合と
同様に磁力を利用して搬送が可能となる。鉄粉の粒径が
５００μｍ以下であることが鉄粉を凝集させることなく
熱硬化性樹脂中に均一に分散した樹脂製の裏板とするこ
とができる。鉄粉の添加量は裏板を１００重量％とした
とき１〜５０重量％の範囲の量である。鉄粉の添加量が
１重量％未満であると裏板の磁力への応答が弱く、製造
工程などで磁力の活用ができなくなり好ましくない。ま
た、鉄粉の添加量が５０重量％を超えると裏板の重量低
減の効果が期待できなくなるので好ましくない。好まし
い添加量は５〜２０重量％の範囲である。In the present invention, the back plate can be manufactured by using iron powder instead of iron-based fiber. The iron powder has an average particle diameter of 500 μm or less, preferably 0.1 to 10 μm.
Iron powder of about μm can be used. Further, iron oxide powder may be used in combination with iron powder. The presence of the iron powder in the back plate of the disc brake pad makes it possible to convey using magnetic force, as in the case of iron-based fibers. When the particle size of the iron powder is 500 μm or less, the resin back plate can be uniformly dispersed in the thermosetting resin without aggregating the iron powder. The amount of iron powder added is in the range of 1 to 50% by weight when the back plate is 100% by weight. When the addition amount of the iron powder is less than 1% by weight, the response of the back plate to the magnetic force is weak, and the magnetic force cannot be utilized in a manufacturing process or the like, which is not preferable. If the amount of iron powder exceeds 50% by weight, the effect of reducing the weight of the back plate cannot be expected, which is not preferable. The preferred addition amount is in the range of 5 to 20% by weight.
【００１５】さらに、鉄系繊維と鉄粉とを併用すること
もできる。この場合も鉄系繊維と鉄粉を併せた添加量は
樹脂１００重量％中１〜５０重量％の範囲であればよ
い。Further, iron-based fibers and iron powder can be used in combination. Also in this case, the addition amount of the iron-based fiber and the iron powder may be in the range of 1 to 50% by weight based on 100% by weight of the resin.
【００１６】鉄粉を添加する場合も鉄系繊維を添加する
場合と同様に、裏板の強度補強用として有機繊維、カー
ボン繊維などの軽量の補強用繊維を併用して用いること
ができる。さらに、必要に応じてセラミックス系の補強
用の充填剤を添加することができる。In the case of adding iron powder, as in the case of adding iron-based fibers, lightweight reinforcing fibers such as organic fibers and carbon fibers can be used in combination for reinforcing the strength of the back plate. Further, a ceramic-based reinforcing filler can be added as needed.
【００１７】本発明の裏板は、特定の繊維径の鉄系繊維
または特定の粒径の鉄粉を熱硬化性のフェノール樹脂と
混合し、必要に応じて他の添加剤、充填剤を加えて均一
に混合し、通常の加圧成形法により形成できる。さらに
裏板の成形時に下方から磁力を作用させ鉄成分を下層側
に集めて成形することで、裏板の磁力応答性を高めるこ
とができる。The back plate of the present invention is obtained by mixing iron-based fibers having a specific fiber diameter or iron powder having a specific particle diameter with a thermosetting phenol resin, and adding other additives and fillers as necessary. And can be uniformly mixed and formed by an ordinary pressure molding method. Further, when the back plate is formed, a magnetic force is applied from below to collect and form the iron component on the lower layer side, whereby the magnetic response of the back plate can be improved.
【００１８】裏板に添加される鉄系繊維または鉄粉は、
摩擦材が接合される面の反対側に多く分布させ、磁力に
対する応答性を高めるようにすることが望ましい。すな
わち、成形時に一方側より磁力を加えて成形することに
より製造できる。The iron-based fiber or iron powder added to the back plate is
It is desirable that the friction material be distributed more on the side opposite to the surface to be joined so as to enhance the response to magnetic force. That is, it can be manufactured by applying a magnetic force from one side during molding.
【００１９】得られた裏板は、上面に接着剤を介して、
基材繊維、結合剤、摩擦調整剤（研削剤、潤滑剤、有機
ダスト、金属粉）、充填剤からなる配合材料を混合して
摩擦部材を加熱加圧成形法で接合させてディスクブレー
キパッドが得られる。また裏板と摩擦部材は同時に成形
することも可能である。このディスクブレーキパッド
は、裏板に反りやクラックの発生がなく金属製裏板の重
量のおよそ半分の重量に低減することができる。また、
裏板には磁力に応答する鉄成分が微粉末や繊維状で存在
するので、樹脂のみで形成された裏板とは異なり磁力を
利用したワークの搬送ができる。The obtained back plate is provided on the upper surface with an adhesive,
The mixing material consisting of base fiber, binder, friction modifier (grinding agent, lubricant, organic dust, metal powder) and filler is mixed, and the friction members are joined by heat and pressure molding method. can get. The back plate and the friction member can be formed at the same time. This disc brake pad can be reduced to approximately half the weight of the metal back plate without warping or cracking of the back plate. Also,
Since the iron component that responds to the magnetic force is present in the back plate in the form of fine powder or fibrous material, the work can be transferred using the magnetic force unlike the back plate made of only resin.
【００２０】[0020]
【実施例】以下、実施例により具体的に説明する。The present invention will be specifically described below with reference to examples.
【００２１】（実施例１）平均繊維径が５０μｍの鉄系
繊維（短繊維）１０重量％とフェノール樹脂２０重量
％、ガラス繊維２０重量％、炭酸カルシウム５０重量％
とを均一に混合し裏板金型に投入し、前記裏板材料の上
に摩擦部材の材料を均一に混合して投入して両者の一体
成形用金型に充填して温度１５０℃で圧力３０ＭＰａで
１０分間成形した。（摩擦材配合比：アラミド繊維５重
量％、スチール繊維１０重量％、チタン酸カリウム繊維
１５重量％、フェノール樹脂１０重量％、グラファイト
５重量％、カシューダスト１０重量％、シリカ５重量
％、硫酸バリウム４０重量％）得られたディスクブレー
キパッドは表１に示す評価を行った。Example 1 10% by weight of iron-based fiber (short fiber) having an average fiber diameter of 50 μm, 20% by weight of phenol resin, 20% by weight of glass fiber, 50% by weight of calcium carbonate
Are uniformly mixed and charged into a back plate mold, the material of the friction member is uniformly mixed and charged on the back plate material, and the two are integrally filled into a mold for molding, and the pressure is 30 MPa at a temperature of 150 ° C. For 10 minutes. (Friction material mixing ratio: aramid fiber 5% by weight, steel fiber 10% by weight, potassium titanate fiber 15% by weight, phenolic resin 10% by weight, graphite 5% by weight, cashew dust 10% by weight, silica 5% by weight, barium sulfate The obtained disc brake pads were evaluated as shown in Table 1.
【００２２】（実施例２）平均粒径が１μｍの鉄粉１０
重量％とフェノール樹脂２０重量％、ガラス繊維２０重
量％、炭酸カルシウム５０重量％とを均一に混合し裏板
用材料として実施例１と同様にしてディスクブレーキパ
ッドを作製した。Example 2 Iron powder 10 having an average particle size of 1 μm
By weight, 20% by weight of phenolic resin, 20% by weight of glass fiber, and 50% by weight of calcium carbonate were uniformly mixed, and a disc brake pad was produced in the same manner as in Example 1 as a backing plate material.
【００２３】（実施例３）平均繊維径が５０μｍの鉄系
繊維１０重量％と平均粒径１μｍの鉄粉１０重量％およ
びにフェノール樹脂２０重量％、ガラス繊維２０重量
％、炭酸カルシウム４０重量％とを均一に混合し裏板用
材料として実施例１と同様にしてディスクブレーキパッ
ドを作製した。Example 3 10% by weight of iron-based fiber having an average fiber diameter of 50 μm, 10% by weight of iron powder having an average particle diameter of 1 μm, 20% by weight of phenol resin, 20% by weight of glass fiber, and 40% by weight of calcium carbonate Were uniformly mixed to produce a disc brake pad in the same manner as in Example 1 as a back plate material.
【００２４】（比較例１）平均繊維径が５０μｍの鉄系
繊維０．５重量％とフェノール樹脂２０重量％およびガ
ラス繊維２９．５重量％、炭酸カルシウム５０重量％と
を均一に混合し裏板用材料として実施例１と同様にして
ディスクブレーキパッドを作製した。(Comparative Example 1) 0.5% by weight of iron-based fiber having an average fiber diameter of 50 μm, 20% by weight of phenol resin, 29.5% by weight of glass fiber, and 50% by weight of calcium carbonate were uniformly mixed and mixed. A disc brake pad was produced in the same manner as in Example 1 as a material for use.
【００２５】（比較例２）平均繊維径が５０μｍの鉄系
繊維６０重量％とフェノール樹脂２０重量％およびガラ
ス繊維５重量％、炭酸カルシウム１５重量％とを均一に
混合し裏板用材料とし実施例１と同様にしてディスクブ
レーキパッドを作製した。Comparative Example 2 A material for a back plate was prepared by uniformly mixing 60% by weight of an iron-based fiber having an average fiber diameter of 50 μm, 20% by weight of a phenol resin, 5% by weight of glass fiber, and 15% by weight of calcium carbonate. A disk brake pad was produced in the same manner as in Example 1.
【００２６】（比較例３）繊維径が３００μｍ鉄系繊維
４０重量％とフェノール樹脂２０重量％、ガラス繊維５
重量％、炭酸カルシウム３５重量％とを均一に混合し裏
板用材料として実施例１と同様にしてディスクブレーキ
パッドを作製した。Comparative Example 3 A fiber diameter of 300 μm, 40% by weight of iron-based fiber, 20% by weight of phenol resin, and 5% of glass fiber
% By weight and 35% by weight of calcium carbonate were uniformly mixed, and a disc brake pad was produced in the same manner as in Example 1 as a back plate material.
【００２７】（比較例４）平均粒径１μｍの鉄粉０．５
重量％とフェノール樹脂２０重量％、ガラス繊維２９．
５重量％、炭酸カルシウム５０重量％とを均一に混合し
裏板用材料として実施例１と同様にしてディスクブレー
キパッドを作製した。(Comparative Example 4) Iron powder 0.5 having an average particle size of 1 μm
20% by weight, phenolic resin 20% by weight, glass fiber
5% by weight and 50% by weight of calcium carbonate were uniformly mixed, and a disc brake pad was produced in the same manner as in Example 1 as a backing plate material.
【００２８】（比較例５）平均粒径２５０μｍの鉄粉４
０重量％と平均繊維径５０μｍスチール繊維と、フェノ
ール樹脂２０重量％、ガラス繊維２０重量％、炭酸カル
シウム１０重量％とを均一に混合し裏板用材料として実
施例１と同様にしてディスクブレーキパッドを作製し
た。Comparative Example 5 Iron powder 4 having an average particle size of 250 μm
0% by weight, steel fiber having an average fiber diameter of 50 μm, 20% by weight of phenol resin, 20% by weight of glass fiber, and 10% by weight of calcium carbonate are uniformly mixed, and a disc brake pad is prepared as a backing plate material in the same manner as in Example 1. Was prepared.
【００２９】[0029]
【表１】 [Table 1]
【００３０】表１に示したように実施例の所定の繊維径
の鉄繊維、所定の粒径の鉄粉を添加したディスクブレー
キパッドの裏板はいずれもクラックや反りが発生せず、
従来の鉄製裏板重量の約半分の重量（従来品は８０ｇ／
個であったのが４０ｇ／個となり５０％軽量化）とする
ことができた。As shown in Table 1, the back plate of the disc brake pad to which the iron fiber having the predetermined fiber diameter and the iron powder having the predetermined particle diameter of the embodiment were added did not crack or warp.
Approximately half the weight of the conventional iron backing plate (80 g /
Was 40 g / piece and the weight was reduced by 50%).
【００３１】磁気的保持性：ディスクブレーキパッドの
裏板側をワーク搬送設備のワークチャック部に取り付
け、電磁チャックした際のワーク引きはがし力２００Ｎ
以上であることを確認した。このことにより裏板に鉄系
繊維、鉄粉を所定の範囲で添加することによりその特性
が発揮できた。Magnetic Retention: The back plate side of the disc brake pad is attached to the work chuck of the work transfer equipment, and the work peeling force when electromagnetic chucking is performed is 200 N.
It was confirmed that it was above. Thus, by adding iron-based fibers and iron powder in a predetermined range to the back plate, the characteristics could be exhibited.
【００３２】一方、比較例２ではスチールファイバーの
添加量が６０重量％と多いため軽量化効果が期待できな
い。比較例３および比較例５では繊維径および粒径が特
定の範囲より大きいため成形後の裏板に反りやクラック
が発生した。比較例１および比較例４はスチールファイ
バーおよび鉄粉の添加量が１重量％未満であるため磁力
の応答性が認められなかった。On the other hand, in Comparative Example 2, since the amount of steel fiber added was as large as 60% by weight, a weight reduction effect could not be expected. In Comparative Examples 3 and 5, since the fiber diameter and the particle size were larger than the specific ranges, warping and cracks occurred in the back plate after molding. In Comparative Examples 1 and 4, since the addition amount of the steel fiber and the iron powder was less than 1% by weight, no responsiveness of magnetic force was recognized.
【００３３】実施例１はスチールファイバーを実施例２
では鉄粉を添加したもので、成形品の不具合もなく軽量
化でき、磁力の応答性も優れていた。さらに、実施例３
では、スチールファイバーと鉄粉を同量ずつ併用した場
合であるが、この場合も他の実施例と同様に良好な結果
が得られた。Example 1 uses steel fiber and Example 2
With iron powder added, the molded article could be reduced in weight without any trouble and the magnetic response was excellent. Further, Example 3
In this case, the same amount of steel fiber and iron powder were used in combination. In this case, as in the other examples, good results were obtained.
【００３４】[0034]
【発明の効果】以上詳述したように本願発明のディスク
ブレーキパッドは、樹脂の裏板に鉄系繊維または鉄粉を
添加したことにより、通常の樹脂製の裏板の場合と同様
に成形性も良く、製品の割れや反りの発生も抑制でき鉄
製の裏板と同様に磁力が利用できると共に鉄製の裏板よ
り軽量化できた。したがって、従来の磁力を利用した工
程を変更することなく製造できる利点を有する。さら
に、従来の樹脂製のディスクブレーキパッドの裏板の特
性も備えており有用な製品である。As described above in detail, the disc brake pad of the present invention has the same moldability as the ordinary resin back plate by adding iron-based fiber or iron powder to the resin back plate. Also, the generation of cracks and warpage of the product can be suppressed, the magnetic force can be used similarly to the iron back plate, and the weight can be reduced compared to the iron back plate. Therefore, there is an advantage that the manufacturing can be performed without changing the process using the conventional magnetic force. In addition, it is a useful product because it has the characteristics of the back plate of a conventional resin disc brake pad.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 楢崎 哲 愛知県刈谷市朝日町２丁目１番地 アイシ ン精機株式会社内 Ｆターム(参考） 3J058 BA61 BA68 CA42 CA47 EA02 EA12 EA13 EA16 EA29 GA07 GA20 GA26 GA28 GA34 GA37 GA55 GA57 GA58 GA78 GA92 GA95 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tetsu Narasaki 2-1-1 Asahi-machi, Kariya-shi, Aichi F-term in Aisin Seiki Co., Ltd. 3J058 BA61 BA68 CA42 CA47 EA02 EA12 EA13 EA16 EA29 GA07 GA20 GA26 GA28 GA34 GA37 GA55 GA57 GA58 GA78 GA92 GA95
Claims (2)
ブレーキパッドであって、前記裏板は該裏板全体量を１
００重量％としたとき繊維径が２００μｍ以下の鉄系繊
維を１〜５０重量％を含む熱硬化性樹脂で成形され該裏
板が磁力応答性を有することを特徴とするディスクブレ
ーキパッド。1. A disk brake pad comprising a resin back plate and a friction member, wherein said back plate has a total amount of said back plate of one.
A disc brake pad characterized by being formed of a thermosetting resin containing 1 to 50% by weight of an iron-based fiber having a fiber diameter of 200 μm or less when the weight is set to 00% by weight, wherein the back plate has magnetic responsiveness.
ブレーキパッドであって、前記裏板は該裏板全体量を１
００重量％としたとき平均粒子径５００μｍ以下の鉄粉
または鉄粉および酸化鉄粉を１〜５０重量％を含む熱硬
化性樹脂で成形され該裏板が磁力応答性を有することを
特徴とするディスクブレーキパッド。2. A disk brake pad comprising a resin back plate and a friction member, wherein said back plate has a total amount of said back plate of one.
Wherein the back plate is magnetically responsive, comprising iron powder having an average particle diameter of not more than 500 μm or an iron powder and iron oxide powder having an average particle diameter of 500 μm or less and containing 1 to 50% by weight. Disc brake pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000286207A JP2002098177A (en) | 2000-09-20 | 2000-09-20 | Disc brake pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000286207A JP2002098177A (en) | 2000-09-20 | 2000-09-20 | Disc brake pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002098177A true JP2002098177A (en) | 2002-04-05 |
Family
ID=18770164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000286207A Pending JP2002098177A (en) | 2000-09-20 | 2000-09-20 | Disc brake pad |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002098177A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005172241A (en) * | 2003-12-12 | 2005-06-30 | Rex Industrie-Produkte Graf Von Rex Gmbh | Integrated friction body having support and friction pad mounted on the support and manufacturing method thereof |
| JP2012036932A (en) * | 2010-08-04 | 2012-02-23 | Hitachi Automotive Systems Ltd | Brake pad |
| WO2014065384A1 (en) * | 2012-10-26 | 2014-05-01 | 住友ベークライト株式会社 | Back-plate composition, back plate, brake pad, and caliper device |
| WO2014077160A1 (en) * | 2012-11-13 | 2014-05-22 | 住友ベークライト株式会社 | Brake pad and caliper device |
-
2000
- 2000-09-20 JP JP2000286207A patent/JP2002098177A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005172241A (en) * | 2003-12-12 | 2005-06-30 | Rex Industrie-Produkte Graf Von Rex Gmbh | Integrated friction body having support and friction pad mounted on the support and manufacturing method thereof |
| JP2012036932A (en) * | 2010-08-04 | 2012-02-23 | Hitachi Automotive Systems Ltd | Brake pad |
| WO2014065384A1 (en) * | 2012-10-26 | 2014-05-01 | 住友ベークライト株式会社 | Back-plate composition, back plate, brake pad, and caliper device |
| CN104755787A (en) * | 2012-10-26 | 2015-07-01 | 住友电木株式会社 | Back-plate composition, back plate, brake pad, and caliper device |
| US9618065B2 (en) | 2012-10-26 | 2017-04-11 | Sumitomo Bakelite Company Limited | Back-plate composition, back plate, brake pad, and caliper device |
| US10100886B2 (en) | 2012-10-26 | 2018-10-16 | Sumitomo Bakelite Company Limited | Back-plate composition, back plate, brake pad, and caliper device |
| WO2014077160A1 (en) * | 2012-11-13 | 2014-05-22 | 住友ベークライト株式会社 | Brake pad and caliper device |
| JPWO2014077160A1 (en) * | 2012-11-13 | 2017-01-05 | 住友ベークライト株式会社 | Brake pads and caliper devices |
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