JPH09112607A - Friction material - Google Patents
Friction materialInfo
- Publication number
- JPH09112607A JPH09112607A JP27080695A JP27080695A JPH09112607A JP H09112607 A JPH09112607 A JP H09112607A JP 27080695 A JP27080695 A JP 27080695A JP 27080695 A JP27080695 A JP 27080695A JP H09112607 A JPH09112607 A JP H09112607A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- heat insulating
- insulating material
- pad
- pad layer
- 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.)
- Granted
Links
Landscapes
- Braking Arrangements (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は摩擦材に関し、更に
詳細には金属製プレートの一面側に、断熱材層を介して
パッド層が接合された摩擦材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a friction material, and more particularly to a friction material in which a pad layer is joined to one surface side of a metal plate via a heat insulating material layer.
【0002】[0002]
【従来の技術】自動車等の車両のディスクブレーキに使
用される摩擦材としては、例えば図2に示す摩擦材10
が使用される。図2に示す摩擦材10は、結着孔12、
12が穿設された金属製プレート14の一面側に、ライ
ニング材16が一体化されている。かかる摩擦材10
は、図2のXーX面における縦断面図である図3に示す
ように、ライニング材16の一部が結着孔12、12に
進入して金属製プレート14とライニング材16との結
着を図っている。更に、ライニング材16は、回転する
ディスクロータと接触するパッド層180と中間層とし
ての断熱材層200とから成る。この断熱材層200
は、金属製プレート14とパッド層180とを接合する
役割を有すると共に、ブレーキ操作時等において、ディ
スクロータとパッド層180との接触によって発生する
摩擦熱の金属製プレート14への過度の伝熱を防止する
断熱層としての役割も有する。金属製プレート14が加
熱されると、金属製プレート14の他面側を押圧するブ
レーキシリンダのブレーキ油の蒸発に因るベーパーロッ
クが発生することがあるからである。2. Description of the Related Art As a friction material used for a disc brake of a vehicle such as an automobile, for example, a friction material 10 shown in FIG.
Is used. The friction material 10 shown in FIG.
A lining material 16 is integrated with one surface of the metal plate 14 having the holes 12 formed therein. Such friction material 10
As shown in FIG. 3, which is a vertical cross-sectional view taken along the line XX of FIG. 2, part of the lining material 16 enters the binding holes 12 and 12 to bond the metal plate 14 and the lining material 16. I am trying to wear it. Further, the lining material 16 is composed of a pad layer 180 that comes into contact with the rotating disk rotor and a heat insulating material layer 200 as an intermediate layer. This heat insulation layer 200
Has a role of joining the metal plate 14 and the pad layer 180, and excessive heat transfer to the metal plate 14 of frictional heat generated by the contact between the disk rotor and the pad layer 180 at the time of brake operation. It also has a role as a heat insulating layer for preventing the above. This is because when the metal plate 14 is heated, vapor lock may occur due to evaporation of brake oil in the brake cylinder that presses the other surface of the metal plate 14.
【0003】この様に、ライニング材16を形成するパ
ッド層180と断熱材層200とは、その有する役割を
異にするため、各層を形成する結合材としてのレジンの
特性も異なる。すなわち、パッド層180に使用される
パッド層用のレジンは、耐磨耗性が優れたものが使用さ
れ、断熱材層200に使用される断熱材層用のレジン
は、金属製プレート14との結着性が良好なものが使用
される。このため、図3に示す摩擦材は、パッド層18
0と断熱材層200との各々の線膨張係数が異なるた
め、摩擦熱等の熱に因る熱歪によって両層間の境界面に
クラックが発生し易い欠点を有していた。かかる欠点を
解決すべく、特開昭56−80532号公報には、断熱
材層200を多層とし、各層の線膨張係数に傾斜を設け
た摩擦材が提案されている。As described above, since the pad layer 180 forming the lining material 16 and the heat insulating material layer 200 have different roles, the characteristics of the resin as the binder forming each layer are also different. That is, the resin for the pad layer used for the pad layer 180 has excellent abrasion resistance, and the resin for the heat insulating material layer used for the heat insulating material layer 200 is the same as the metal plate 14. A material having good binding property is used. Therefore, the friction material shown in FIG.
Since the coefficient of linear expansion of 0 is different from that of the heat insulating material layer 200, there is a drawback that cracks easily occur at the boundary surface between the two layers due to thermal strain caused by heat such as friction heat. In order to solve such a drawback, Japanese Patent Application Laid-Open No. 56-80532 proposes a friction material in which the heat insulating material layer 200 has multiple layers and the linear expansion coefficient of each layer is inclined.
【0004】[0004]
【発明が解決しようとする課題】前記公報において提案
された摩擦材によれば、摩擦熱等の熱による熱歪に起因
する、パッド層180と断熱材層200との境界面に発
生するクラックを減少できる。しかしながら、かかる摩
擦材においても、ライニング材16に対して加熱と冷却
とを繰り返すことによって、依然として両層の境界面に
クラックが発生し易いとが判明した。一方、摩擦熱等の
熱の一部は、金属製プレート14を経由しても放熱され
るため、断熱材層200の断熱性能はブレーキシリンダ
のブレーキ油蒸発に因るベーパーロックが発生しない程
度に断熱することで充分である。この点、断熱材層20
0を多層とすることは、断熱材層200が所定厚さより
も厚くなって、必要以上の断熱性能が発揮される場合に
は、摩擦熱等の熱がパッド層180内に蓄積されてブレ
ーキ性能が低下するおそれがある。更に、断熱材層20
0の多層化は、摩擦材の製造工程を複雑化する。また、
断熱材層200とパッド層180との間に、機能層、例
えばパッド層200が擦り減ったとき、ディスクロータ
に接触して異音が発生する警報層等を設けることがある
が、かかる機能層を設ける場合には、断熱材層200を
含む中間層を所定厚さに維持するため、断熱材層200
を可及的に薄層とすることが必要である。そこで、本発
明の課題は、加熱と冷却とが繰り返して加えられてもパ
ッド層を含む中間層と断熱材層との境界面にクラックが
発生し難く、且つ製造し易い摩擦材を提供することにあ
る。According to the friction material proposed in the above publication, cracks generated at the interface between the pad layer 180 and the heat insulating material layer 200 due to thermal strain due to heat such as friction heat are generated. Can be reduced. However, even in such a friction material, it was found that cracks still tend to occur at the boundary surface between both layers by repeating heating and cooling of the lining material 16. On the other hand, a part of heat such as frictional heat is radiated even through the metal plate 14, so that the heat insulating performance of the heat insulating material layer 200 is such that vapor lock due to evaporation of brake oil in the brake cylinder does not occur. Insulation is sufficient. In this respect, the heat insulating material layer 20
When 0 is a multi-layer, when the heat insulating material layer 200 is thicker than a predetermined thickness and exhibits more heat insulation performance than necessary, heat such as frictional heat is accumulated in the pad layer 180 and the braking performance is increased. May decrease. Further, the heat insulating material layer 20
The multi-layering of 0 complicates the manufacturing process of the friction material. Also,
Between the heat insulating material layer 200 and the pad layer 180, there may be provided a functional layer, for example, an alarm layer that comes into contact with the disc rotor to generate an abnormal noise when the pad layer 200 is worn down. When the heat insulating material layer 200 is provided, the intermediate layer including the heat insulating material layer 200 is maintained at a predetermined thickness.
Is required to be as thin as possible. Therefore, an object of the present invention is to provide a friction material in which cracks are unlikely to occur at the interface between the intermediate layer including the pad layer and the heat insulating material layer even when heating and cooling are repeatedly applied, and which is easy to manufacture. It is in.
【0005】[0005]
【課題を解決するための手段】本発明者等は、前記課題
を解決すべく、先ず、中間層が単一層の断熱材層である
摩擦材において、パッド層と断熱材層との境界面にクラ
ックが発生し易い原因について検討したところ、図3の
P部分を拡大した図4に示す如く、従来の摩擦材のライ
ニング材16を形成するパッド層180と断熱材層20
0との境界がライニング材16の側端面に露出している
ため、両層間の境界面にクラックが発生し易いことを知
った。つまり、摩擦熱等の熱によってライニング材16
が加熱されてから放冷されたとき、ライニング材16の
表面近傍は急冷されるため、ライニング材16の表面近
傍温度の降温速度は、ライニング材16が加熱されたと
きの昇温速度よりも速い。このため、ライニング材16
を構成するパッド層180と断熱材層200との収縮率
差(線膨張率差)は、両層の境界が露出しているライニ
ング材16の側端面近傍において、ライニング材16の
加熱時よりも放冷時に顕在化し易いからである。かかる
知見に基づいて、本発明者等は更に検討を重ねた結果、
パッド層180と断熱材層200との境界が露出してい
るライニング材16の側端面近傍を、パッド層180で
覆うことによって、ライニング材16の放冷時に発生し
易い両層の境界面のクラックを防止できることを見出
し、本発明に到達した。In order to solve the above-mentioned problems, the inventors of the present invention firstly set a friction material in which the intermediate layer is a single heat-insulating material layer on the boundary surface between the pad layer and the heat-insulating material layer. As a result of studying the cause of easy occurrence of cracks, as shown in FIG. 4 which is an enlarged view of P portion of FIG. 3, a pad layer 180 and a heat insulating material layer 20 forming a conventional lining material 16 of a friction material are formed.
Since the boundary with 0 is exposed on the side end surface of the lining material 16, it has been found that cracks are likely to occur on the boundary surface between both layers. That is, the lining material 16 is heated by heat such as friction heat.
When the lining material 16 is heated and then allowed to cool, the vicinity of the surface of the lining material 16 is rapidly cooled. Therefore, the temperature lowering rate of the temperature near the surface of the lining material 16 is faster than the temperature rising rate when the lining material 16 is heated. . Therefore, the lining material 16
The difference in shrinkage ratio (difference in linear expansion coefficient) between the pad layer 180 and the heat insulating material layer 200, which constitutes the above, is closer to the side end surface of the lining material 16 where the boundary between the two layers is exposed than when the lining material 16 is heated. This is because it is easy to become apparent when it is allowed to cool. Based on such findings, the present inventors have made further studies,
By covering the vicinity of the side end surface of the lining material 16 where the boundary between the pad layer 180 and the heat insulating material layer 200 is exposed with the pad layer 180, cracks in the boundary surface between the two layers that are likely to occur when the lining material 16 is allowed to cool. The inventors have found that the above can be prevented and have reached the present invention.
【0006】すなわち、本発明は、金属製プレートの一
面側に、断熱材層を含む中間層を介してパッド層が接合
された摩擦材において、該金属製プレートの一面側に接
合された断熱材層を含む中間層の表面が露出しないよう
に、前記中間層がパッド層によって覆われていることを
特徴とする摩擦材にある。かかる構成を有する本発明に
おいて、金属製プレートの一面側に接合された中間層を
単一層の断熱材層とすることによって、放熱性が良好な
摩擦材を容易に製造することができる。また、金属製プ
レートの一面側に接合された中間層を多層とすることに
よって、警報機能等の機能を呈し得る機能層を断熱材層
上に形成できる。That is, according to the present invention, in a friction material in which a pad layer is bonded to one surface side of a metal plate via an intermediate layer including a heat insulating material layer, a heat insulation material bonded to one surface side of the metal plate. In the friction material, the intermediate layer is covered with a pad layer so that the surface of the intermediate layer including the layer is not exposed. In the present invention having such a configuration, by forming the intermediate layer joined to the one surface side of the metal plate as a single heat insulating material layer, it is possible to easily manufacture a friction material having good heat dissipation. Further, by forming the intermediate layer joined to the one surface side of the metal plate as a multilayer, a functional layer capable of exhibiting a function such as an alarm function can be formed on the heat insulating material layer.
【0007】かかる構成を有する本発明によれば、金属
製プレートの一面側に接合された断熱材層を含む中間層
はパッド層によって覆われているため、両層の境界もパ
ッド層によって覆われている。このため、中間層とパッ
ド層とから成るライニング材が加熱されてから放冷され
たとき、パッド層の表面近傍は急冷されるものの、中間
層とパッド層との境界面近傍は、パッド層の表面近傍よ
りも徐冷されるため、両層間の収縮率差(線膨張率差)
が急激に拡大されることなく冷却される結果、両層間の
境界面に発生するクラックを防止できる。According to the present invention having such a configuration, since the intermediate layer including the heat insulating material layer bonded to one surface side of the metal plate is covered with the pad layer, the boundary between both layers is also covered with the pad layer. ing. Therefore, when the lining material composed of the intermediate layer and the pad layer is cooled after being heated, the surface of the pad layer is rapidly cooled, but the vicinity of the interface between the intermediate layer and the pad layer is Since it is cooled more slowly than near the surface, the difference in shrinkage between the two layers (difference in linear expansion)
As a result of being cooled without being rapidly expanded, it is possible to prevent cracks occurring at the boundary surface between the two layers.
【0008】[0008]
【発明の実施の形態】本発明に係る摩擦材の外観は、先
に説明した図2に示す摩擦材10と同じであり、結着孔
12、12が穿設された金属製プレート14の一面側
に、ライニング材16が一体化されている。かかる着孔
12、12の内部には、ライニング材16の一部が進入
し、ライニング材16と金属製プレート14との結着を
図っている。本発明においては、図2に示すライニング
材16を構成するパッド層18と断熱材層20とは、図
1に示す様に、金属製プレート14の一面側に接合され
た断熱材層20がパッド層18によって覆われている。
このため、両層の境界は、パッド層18で覆うことがで
きる。この様に、パッド層18と断熱材層20との境界
を、パッド層18で覆うことによって、断熱材層20と
パッド層18とから成るライニング材16が加熱されて
から放冷されたとき、パッド層18の表面近傍は急冷さ
れるものの、断熱材層20とパッド層18との境界面近
傍は、パッド層18の表面近傍よりも徐冷される。BEST MODE FOR CARRYING OUT THE INVENTION The appearance of the friction material according to the present invention is the same as that of the friction material 10 shown in FIG. 2 described above, and one surface of the metal plate 14 having the binding holes 12, 12 is formed. The lining material 16 is integrated on the side. A part of the lining material 16 enters the inside of the attachment holes 12 and 12 to bond the lining material 16 and the metal plate 14 together. In the present invention, the pad layer 18 and the heat insulating material layer 20 constituting the lining material 16 shown in FIG. 2 have the heat insulating material layer 20 bonded to one surface side of the metal plate 14 as shown in FIG. Covered by layer 18.
Therefore, the boundary between both layers can be covered with the pad layer 18. In this way, when the boundary between the pad layer 18 and the heat insulating material layer 20 is covered with the pad layer 18, when the lining material 16 composed of the heat insulating material layer 20 and the pad layer 18 is heated and then allowed to cool, Although the vicinity of the surface of the pad layer 18 is rapidly cooled, the vicinity of the interface between the heat insulating material layer 20 and the pad layer 18 is gradually cooled as compared with the vicinity of the surface of the pad layer 18.
【0009】このため、両層間の収縮率差(線膨張率
差)が急激に拡大されることなくライニング材16を冷
却でき、両層間の境界面に発生するクラックを防止でき
る。ここで、断熱材層20の側面を覆うパッド層18の
厚さtは、1〜1.5mm程度で充分である。図1に示
す摩擦材においては、断熱材層20内にアラミドや金属
から成る短繊維22、22・・が配合されている。かか
る短繊維22、22・・の断熱材層20の表面近傍に存
在する短繊維22、22・・の一部は、端部の一方がパ
ッド層18内に入り込み、断熱材層20とパッド層18
とを一体化している。尚、断熱材層20及びパッド層1
8を形成する材料は、従来から摩擦材の製造に使用され
ているものを使用できる。Therefore, the lining material 16 can be cooled without abruptly expanding the difference in shrinkage rate (difference in linear expansion coefficient) between the two layers, and cracks occurring at the boundary surface between the two layers can be prevented. Here, the thickness t of the pad layer 18 that covers the side surface of the heat insulating material layer 20 is sufficient to be about 1 to 1.5 mm. In the friction material shown in FIG. 1, short fibers 22, 22 ... Made of aramid or metal are mixed in the heat insulating material layer 20. .. existing in the vicinity of the surface of the heat insulating material layer 20 of the short fibers 22, 22 .. 18
And are integrated. The heat insulating material layer 20 and the pad layer 1
As a material for forming 8, a material conventionally used for manufacturing a friction material can be used.
【0010】図1に示す構造の摩擦材の製造は、先ず、
結着孔12、12が穿設された金属製プレート14に各
種の表面処理を施してから乾燥を施す。かかる表面処理
には、金属製プレート14を脱脂する脱脂工程、金属製
プレート14面に向けて粒状物を噴射し、ライニング材
16と金属製プレート14との結着強度を高めるための
ショット加工工程等が含まれる。他方、ラインニング材
16を形成するパッド層18を形成するパッド原料と断
熱材層20を形成する断熱材原料とを別々に調整し計量
する。かかるパッド原料と断熱材原料とは、従来から摩
擦材に使用されている原料を使用できる。次いで、表面
処理が施された金属製プレート14の一面側に載置した
所定量の断熱材原料の表面を完全に覆うように、金属製
プレート14の断熱材原料の上に所定量のパッド原料を
載置する。その後、金属製プレート14上に載置された
断熱原料及びパッド原料を加熱・加圧成形し、更に所定
温度で焼成する。尚、得られた摩擦材には、その表面を
研磨する等の後加工を必要に応じて施すことができる。The manufacture of the friction material having the structure shown in FIG.
The metal plate 14 having the binding holes 12, 12 is subjected to various surface treatments and then dried. Such surface treatment includes a degreasing step of degreasing the metal plate 14, and a shot processing step of spraying particulate matter toward the surface of the metal plate 14 to increase the binding strength between the lining material 16 and the metal plate 14. Etc. are included. On the other hand, the pad raw material forming the pad layer 18 forming the liner 16 and the heat insulating raw material forming the heat insulating material layer 20 are separately adjusted and weighed. As the pad raw material and the heat insulating material raw material, the raw materials conventionally used for friction materials can be used. Next, a predetermined amount of pad raw material is placed on the heat insulating material of the metal plate 14 so as to completely cover the surface of the predetermined amount of heat insulating material placed on the one surface side of the surface-treated metal plate 14. To place. After that, the heat insulating raw material and the pad raw material placed on the metal plate 14 are heated and pressure-molded, and further baked at a predetermined temperature. The obtained friction material can be subjected to post-processing such as polishing the surface thereof, if necessary.
【0011】この様にして得た摩擦材は、図1に示す様
に、金属製プレート14の一面側に接合された、単一層
の断熱材層20の表面がパッド層18によって覆われて
いるものである。かかる摩擦材の断熱材層20が単一層
であっても、ライニング材16の放熱の際に、両層間の
収縮率差(線膨張率差)に起因し、両層間の境界面で発
生するクラックを防止できる。従って、断熱材層20を
単一層とすることによって、断熱材層20の厚さを容易
に調整できる結果、断熱材層20の呈する断熱性能を容
易に適正化できると共に、摩擦材の製造も容易とするこ
とができる。但し、断熱材層20を多層としても所定厚
さに形成できるならば、断熱材層20を多層として断熱
材層20の収縮率に傾斜を設けてもよい。この様に、断
熱材層20の収縮率に傾斜が設けることができたなら
ば、パッド層18と断熱材層20との境界面におけるク
ラックの発生を更に一層減少することが可能である。ま
た、断熱材層20の上に、例えば前述した警報層等の機
能層を設けたものを中間層としてもよい。かかる中間層
でも、その表面をパッド層18によって覆うことによっ
て、中間層とパッド層18との境界面に発生するクラッ
クを防止できる。In the friction material thus obtained, as shown in FIG. 1, the surface of a single heat insulating material layer 20 joined to one surface of the metal plate 14 is covered with a pad layer 18. It is a thing. Even when the heat insulating material layer 20 of the friction material is a single layer, cracks generated at the boundary surface between the two layers due to the difference in shrinkage rate between the layers (difference in linear expansion coefficient) during heat dissipation of the lining material 16. Can be prevented. Therefore, as the heat insulating material layer 20 is a single layer, the thickness of the heat insulating material layer 20 can be easily adjusted. As a result, the heat insulating performance of the heat insulating material layer 20 can be easily optimized and the friction material can be easily manufactured. Can be However, if the heat insulating material layer 20 can be formed to have a predetermined thickness even if it has multiple layers, the heat insulating material layer 20 can have multiple layers and the shrinkage rate of the heat insulating material layer 20 can be provided with an inclination. As described above, if the shrinkage rate of the heat insulating material layer 20 can be provided with an inclination, it is possible to further reduce the occurrence of cracks at the boundary surface between the pad layer 18 and the heat insulating material layer 20. Further, a layer provided with a functional layer such as the above-mentioned alarm layer on the heat insulating material layer 20 may be used as the intermediate layer. Even with such an intermediate layer, by covering the surface thereof with the pad layer 18, it is possible to prevent cracks occurring at the boundary surface between the intermediate layer and the pad layer 18.
【0012】[0012]
【発明の効果】本発明によれば、加熱されたライニング
材の冷却によって起因する、ライニング材を構成するパ
ッド層と断熱材層との境界面に発生するクラックを防止
できるため、摩擦材の耐久性を向上できる。According to the present invention, it is possible to prevent cracks occurring at the boundary surface between the pad layer and the heat insulating material layer constituting the lining material due to the cooling of the heated lining material. You can improve the property.
【図面の簡単な説明】[Brief description of the drawings]
【図1】本発明に係る摩擦材の一例を説明するための部
分断面図である。FIG. 1 is a partial cross-sectional view for explaining an example of a friction material according to the present invention.
【図2】摩擦材の一般的な説明を行うための正面図であ
る。FIG. 2 is a front view for giving a general description of a friction material.
【図3】図2に示す摩擦材が従来の摩擦材である場合、
X−X面における縦断面図である。FIG. 3 shows a case where the friction material shown in FIG. 2 is a conventional friction material,
It is a longitudinal cross-sectional view in the XX plane.
【図4】図3に示す縦断面図における部分断面拡大図で
ある。FIG. 4 is an enlarged partial cross-sectional view of the vertical cross-sectional view shown in FIG.
10 摩擦材 12 結着孔 14 金属製プレート 16 ライニング材 18 パッド層 20 断熱材層 10 Friction Material 12 Bonding Hole 14 Metal Plate 16 Lining Material 18 Pad Layer 20 Thermal Insulation Material Layer
Claims (3)
含む中間層を介してパッド層が接合された摩擦材におい
て、 該金属製プレートの一面側に接合された断熱材層を含む
中間層の表面が露出しないように、前記中間層がパッド
層によって覆われていることを特徴とする摩擦材。1. A friction material in which a pad layer is bonded to one surface side of a metal plate via an intermediate layer including a heat insulating material layer, wherein the intermediate material includes a heat insulating material layer bonded to one surface side of the metal plate. A friction material, wherein the intermediate layer is covered with a pad layer so that the surface of the layer is not exposed.
間層が、単一層の断熱材層である請求項1記載の摩擦
材。2. The friction material according to claim 1, wherein the intermediate layer joined to one surface side of the metal plate is a single heat insulating material layer.
間層が多層である請求項1記載の摩擦材。3. The friction material according to claim 1, wherein the intermediate layer bonded to one side of the metal plate is a multilayer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27080695A JP3484275B2 (en) | 1995-10-19 | 1995-10-19 | Friction material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27080695A JP3484275B2 (en) | 1995-10-19 | 1995-10-19 | Friction material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH09112607A true JPH09112607A (en) | 1997-05-02 |
JP3484275B2 JP3484275B2 (en) | 2004-01-06 |
Family
ID=17491285
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP27080695A Expired - Fee Related JP3484275B2 (en) | 1995-10-19 | 1995-10-19 | Friction material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3484275B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103629274A (en) * | 2013-12-08 | 2014-03-12 | 许世东 | Brake block for automobile |
KR20190001633A (en) * | 2017-06-26 | 2019-01-07 | 현대자동차주식회사 | Brake pad use for a brake caliper and manufacturing method therefor |
-
1995
- 1995-10-19 JP JP27080695A patent/JP3484275B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103629274A (en) * | 2013-12-08 | 2014-03-12 | 许世东 | Brake block for automobile |
KR20190001633A (en) * | 2017-06-26 | 2019-01-07 | 현대자동차주식회사 | Brake pad use for a brake caliper and manufacturing method therefor |
Also Published As
Publication number | Publication date |
---|---|
JP3484275B2 (en) | 2004-01-06 |
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