JPH0112974B2 - - Google Patents
Info
- Publication number
- JPH0112974B2 JPH0112974B2 JP61180941A JP18094186A JPH0112974B2 JP H0112974 B2 JPH0112974 B2 JP H0112974B2 JP 61180941 A JP61180941 A JP 61180941A JP 18094186 A JP18094186 A JP 18094186A JP H0112974 B2 JPH0112974 B2 JP H0112974B2
- Authority
- JP
- Japan
- Prior art keywords
- reaction force
- disk
- caliper
- disc
- force piece
- 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
Links
Landscapes
- Braking Arrangements (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はパツドの偏摩耗を極力抑えたデイスク
ブレーキに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a disc brake that minimizes uneven wear of pads.
制動作用によつてパツドが回転しているデイス
クに対し、直角方向から押し付けられると、ピス
トンの押圧力とデイスクの回転力が合成されて、
斜めの方向に力が作用する。このためブラケツト
のトルク受部がデイスクの一側において車体に固
定された片持式であり、かつキヤリパがブラケツ
トに対し摺動ピンを介してデイスク軸方向に摺動
するものにおいては、パツド全面の押圧力が一定
の場合には、この合成力によつて、アウタパツド
のトルク受部がデイスクを跨いで形成されている
ので、インナパツドのトルク受部よりも剛性が小
さいことから、アウタパツドのトルク受部はデイ
スク回出側に変形し易く、これに伴いキヤリパが
変化した摺動ピンに案内されてたわみ、デイスク
と平行でなくなり、以つてピストンに直接押動さ
れるパツドはデイスク回入側が、又反作動部によ
つて押動されるパツドはデイスク回出側が夫々摩
耗量が増大し、偏摩耗が生じる。殊に作動部に複
数のシリンダを形成し、複数のピストンによつて
パツドを押動し、かつキヤリパのデイスク側をブ
ラケツトに摺動自在に支持したデイスクブレーキ
においては、制動時におけるキヤリパのたわみが
一層顕著となりピストンがデイスクに対し斜め方
向から押動するようになり一層パツドの偏摩耗を
助長することとなる。
When the pad is pressed against the rotating disk from a perpendicular direction due to the braking action, the pressing force of the piston and the rotational force of the disk are combined,
A force acts in a diagonal direction. For this reason, if the torque receiving part of the bracket is a cantilever type fixed to the vehicle body on one side of the disc, and the caliper slides on the bracket in the axial direction of the disc via a sliding pin, the entire surface of the pad is When the pressing force is constant, this resultant force causes the torque receiving part of the outer pad to straddle the disk, so it has less rigidity than the torque receiving part of the inner pad, so the torque receiving part of the outer pad The pad is easily deformed toward the disk retraction side, and as a result, the caliper is guided by the changed sliding pin and is no longer parallel to the disk.As a result, the pad that is directly pushed by the piston is bent toward the disk retraction side, and The amount of wear on the pads pushed by the actuating portion increases on the disk retrieval side, resulting in uneven wear. In particular, in a disc brake in which a plurality of cylinders are formed in the operating part, a pad is pushed by a plurality of pistons, and the disc side of the caliper is slidably supported by a bracket, the deflection of the caliper during braking is This becomes more noticeable as the piston moves obliquely relative to the disk, further promoting uneven wear of the pads.
そこで、本発明はキヤリパ摺動部の遠方のパツ
ド押圧力を小さくして、キヤリパのたわみを減少
させてパツドの偏摩耗の助長を防止したデイスク
ブレーキを提供することを目的とする。
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a disc brake in which the pad pressing force at the far side of the caliper sliding portion is reduced, the deflection of the caliper is reduced, and uneven wear of the pads is prevented.
本発明は上記目的を達成するため、一対のパツ
ドのトルク受部を備えかつデイスクの一側で車体
に固定したブラケツトに、一対の摺動部によつて
デイスクの軸方向に摺動案内されるキヤリパを支
持し、該キヤリパはデイスクを跨ぎ一側の作動部
に複数のシリンダを、他側の反作動部に３本以上
の反力片を夫々形成してなるデイスクブレーキに
おいて、デイスク回入側と回出側との間に配設さ
れる反力片を、デイスク回出側に偏寄させて配置
したことを特徴とするものである。
In order to achieve the above object, the present invention includes a pair of pad torque receiving parts and is slidably guided in the axial direction of the disc by a pair of sliding parts on a bracket fixed to the vehicle body on one side of the disc. In a disc brake that supports a caliper, and the caliper straddles the disc and has a plurality of cylinders in the actuating part on one side and three or more reaction force pieces in the non-actuating part on the other side, the caliper is formed on the disk rotation side. It is characterized in that the reaction force piece disposed between the disk and the rotation side is biased toward the disk rotation side.
以下本発明を図示の実施例について説明する。 The present invention will be described below with reference to the illustrated embodiments.
先ず第１図乃至第４図に示す一実施例について
説明する。 First, an embodiment shown in FIGS. 1 to 4 will be described.
１は車輪（図示せず）と一体に回転するデイス
ク、２はブリツジ部３によりデイスク１を跨いで
作動部４と反作動部５とを一体に形成したキヤリ
パで、作動部４には２個のシリンダ６，６が形成
され、夫々にピストン７が摺動可能に設けられ、
マスタシリンダ（図示せず）からホース８を介し
てシリンダ６，６内に供給される液圧によりピス
トン７，７は前進する。 1 is a disk that rotates together with a wheel (not shown); 2 is a caliper in which an actuating part 4 and a counter-actuating part 5 are integrally formed by straddling the disk 1 by a bridge part 3; the actuating part 4 has two calipers; cylinders 6, 6 are formed, each having a piston 7 slidably provided therein,
The pistons 7, 7 move forward due to hydraulic pressure supplied into the cylinders 6, 6 from a master cylinder (not shown) via a hose 8.
一方、反作動部５は３本の反力片５ａ，５ｂ，
５ｃが形成されている。この反力片５ａ，５ｂ，
５ｃは、第３図及び第４図に示す如く、デイスク
回入側の反力片５ａとデイスク回出側の反力片５
ｃの間に配設される反力片５ｂを、デイスク回出
側の反力片５ｃ側に偏寄させて配置してあり、反
力片５ｂ，５ｃの間隔l2よりも反力片５ａ，５ｂ
の間隔l1を広くし、反作動部５のデイスク回入側
の剛性を小さくしたものである。 On the other hand, the reaction section 5 has three reaction force pieces 5a, 5b,
5c is formed. These reaction force pieces 5a, 5b,
5c is a reaction force piece 5a on the disk rotation side and a reaction force piece 5 on the disk rotation side, as shown in FIGS. 3 and 4.
The reaction force piece 5b arranged between the reaction force pieces 5b and 5c is arranged to be biased towards the reaction force piece 5c side on the disc retraction side, and the reaction force piece 5a is arranged closer to the reaction force piece 5c side than the reaction force piece 5a, which is disposed between the reaction force pieces 5b and 5c. ,5b
The distance l 1 is widened, and the rigidity of the reaction section 5 on the disk insertion side is reduced.
９はインナパツド、１０はその裏板、１１はア
ウタパツド、１２はその裏板、１３，１３は両パ
ツド９，１１のハンガーピンで、裏板１０，１２
を摺動可能に挿通し、キヤリパ２に両パツド９，
１１を吊持する。１４はパツドスプリングであ
る。 9 is an inner pad, 10 is its back plate, 11 is an outer pad, 12 is its back plate, 13, 13 are hanger pins for both pads 9, 11, and back plates 10, 12.
Slideably insert the pads 9 into the caliper 2,
11 is suspended. 14 is a pad spring.
１５は自動二輪のフロントフオーク１６にボル
ト孔１７，１７に挿通した固定ボルトにより締結
されたブラケツトで、キヤリパ２の作動部４のデ
イスク回入側上部耳部１８及び中央下部耳部１９
に夫々設けた摺動ピン２０，２０を摺動可能に支
持する。２１はインナパツド９の制動トルク支承
面、２２はアウタパツド１１の制動トルク支承面
である。 15 is a bracket fastened to the front fork 16 of the motorcycle by fixing bolts inserted through bolt holes 17, 17, and is connected to the upper ear part 18 and the lower center ear part 19 on the disk rotation side of the operating part 4 of the caliper 2.
The sliding pins 20, 20 provided on the respective sides are slidably supported. 21 is a braking torque bearing surface of the inner pad 9, and 22 is a braking torque bearing surface of the outer pad 11.
次に上記のデイスクブレーキの作動について説
明すると、ブラケツト１５に摺動ピン２０，２０
によりデイスク回出側を摺動可能に支持されたキ
ヤリパ２は、制動操作によりシリンダ６，６内の
液圧が昇圧するとピストン７，７が前進し、イン
ナパツド９を押動してデイスク１を押圧する。こ
の押圧作動によつてキヤリパ２は摺動ピン２０，
２０によりピストン７，７の前進方向と反対方向
に摺動し、反作動部５の反力片５ａ，５ｂ，５ｃ
でアウタパツド１１を押動し、デイスク１に押圧
し、両パツド９，１１の挾圧作用によつて制動が
行われる。 Next, to explain the operation of the above disc brake, there are sliding pins 20, 20 on the bracket 15.
When the caliper 2 is slidably supported on the disk rotation side by the brake operation, when the hydraulic pressure in the cylinders 6, 6 increases, the pistons 7, 7 move forward, pushing the inner pad 9 and pressing the disk 1. do. Due to this pressing operation, the caliper 2 moves the sliding pin 20,
20 slides in the opposite direction to the forward direction of the pistons 7, 7, and the reaction pieces 5a, 5b, 5c of the reaction part 5
The outer pad 11 is pushed and pressed against the disk 1, and braking is performed by the clamping action of both pads 9 and 11.
この実施例の場合には、デイスク回入側の反力
片５ａとデイスク回出側の反力片５ｃの間の反力
片５ｂを反力片５ｃ側に偏寄させたから、デイス
ク回入側の剛性が小さくなつている。したがつて
制動作用が行われると、ピストン７の押圧力がイ
ンナパツド９を介してデイスク１に加わり、制動
初期にはインナパツド９のデイスク回入側のピス
トン７の推力が助長し、ブラケツトが片持式であ
るが故に傾いた摺動ピンに添つてキヤリパが同方
向、即ちデイスク回出側方向に傾こうとするが、
デイスク回入側の反力片５ａの剛性を小さくして
あることから、又シリンダ側には油圧によつてデ
イスク回出入側にある液圧室昇圧によるピストン
押出作用からして、反力片５ａが開き方向にたわ
み、以つてキヤリパの傾きを抑えることができ、
インナパツド９はデイスク１にほぼ均圧接するこ
とになり、又これに伴いアウタパツド１１も均圧
接が達せられる。 In the case of this embodiment, the reaction force piece 5b between the reaction force piece 5a on the disk rotation side and the reaction force piece 5c on the disk rotation side is biased toward the reaction force piece 5c side. The rigidity of is decreasing. Therefore, when a braking action is performed, the pressing force of the piston 7 is applied to the disc 1 via the inner pad 9, and at the beginning of braking, the thrust of the piston 7 on the disc rotation side of the inner pad 9 is promoted, and the bracket is cantilevered. Because it is a type, the caliper tends to tilt in the same direction as the tilted sliding pin, that is, in the direction toward the disk rotation side.
Since the rigidity of the reaction force piece 5a on the disk rotation side is made small, and also because the piston is pushed out by the pressure increase in the hydraulic chamber on the disk rotation and extraction side by hydraulic pressure on the cylinder side, the reaction force piece 5a is flexes in the opening direction, thereby suppressing the inclination of the caliper.
The inner pad 9 comes into almost equal pressure contact with the disk 1, and accordingly, the outer pad 11 also comes into equal pressure contact.
次に反作動部５のデイスク回入側の剛性が小さ
くした他の実施例を第５図に基づいて説明する。 Next, another embodiment in which the rigidity of the reaction section 5 on the disk insertion side is reduced will be described with reference to FIG.
第５図に示す実施例は、デイスク回出側の反力
片５ｃに他の反力片５ａ，５ｂを等間隔で偏寄さ
せ、反力片５ａ，５ｂがアウタパツド１１の中心
に対しオフセツトにし、反作動部５のデイスク回
入側の剛性を小さくしたものである。 In the embodiment shown in FIG. 5, other reaction force pieces 5a and 5b are biased toward the reaction force piece 5c on the disk rotation side at equal intervals, and the reaction force pieces 5a and 5b are offset from the center of the outer pad 11. , the rigidity of the reaction section 5 on the disk insertion side is reduced.
尚、上記実施例では、反力片を３本設けたもの
について説明したが、４本以上設けたものであつ
ても同様の作用を奏することができる。 Incidentally, in the above embodiment, a case in which three reaction force pieces are provided has been described, but even if four or more reaction force pieces are provided, the same effect can be achieved.
本発明は以上のように、キヤリパの反作動部の
反力片を３本以上設け、デイスク回入側と回出側
の反力片との間の反力片をデイスク回出側の反力
片側に偏寄させて反作動部のデイスク回入側の剛
性を小さくしたから、制動初期はピストンの押力
によつてキヤリパがたわんでデイスク回入側のピ
ストンの押力が助長され、ブラケツトが片持式で
あるが故に傾いた摺動部に添つてキヤリパがデイ
スク回出側方向に傾こうとするが、反作動部のデ
イスク回入側の反力片が開き方向にたわみ、以つ
てキヤリパの傾きを抑えることができ、インナパ
ツドはデイスクに対してほぼ均圧接することにな
り、アウタパツドもインナパツドの均圧接に伴い
デイスクに均圧接し、両パツドの偏摩耗を減少さ
せることができる。さらに反作動部のデイスク回
入側の剛性を小さくすることは、一般にデイスク
回出側より摩耗量が大となるリーデイング側とし
ての影響が減少することとなり、アウタパツドの
均圧接が達成される。
As described above, the present invention provides three or more reaction force pieces in the reaction part of the caliper, and converts the reaction force piece between the reaction force piece on the disk rotation side and the reaction force side on the disk rotation side into a reaction force on the disk rotation side. By biasing it to one side, the rigidity of the counter-actuation part on the disc rotation side is reduced, so at the beginning of braking, the caliper is bent by the pushing force of the piston, and the pushing force of the piston on the disc rotation side is promoted, and the bracket is Since it is a cantilever type, the caliper tends to tilt toward the disc rotation side along the inclined sliding part, but the reaction force piece on the disc rotation side of the reaction part bends in the opening direction, and the caliper The inclination of the inner pad can be suppressed, and the inner pad will come into almost equal pressure contact with the disk, and the outer pad will also come into equal pressure contact with the disk as the inner pad comes into equal pressure contact, and uneven wear of both pads can be reduced. Further, by reducing the rigidity of the reaction section on the disk retraction side, the influence of the leading side, which generally suffers more wear than the disk retraction side, is reduced, and uniform pressure welding of the outer pad is achieved.
しかも、デイスク回入側の反力片のパツド押圧
面の先端側の肉を取除いてデイスク回入力側の剛
性を小さくしたものではないから、反力片によつ
てアウタパツドをデイスクに対してデイスク軸に
平行に押動できるので、デイスク半径方向の偏摩
耗も生じにくい。 Moreover, since the rigidity of the disc rotation input side is not reduced by removing the flesh on the tip side of the pad pressing surface of the reaction force piece on the disk rotation side, the reaction force piece moves the outer pad against the disk. Since it can be pushed parallel to the axis, uneven wear in the disk radial direction is less likely to occur.
第１図乃至第４図は本発明の一実施例を示すも
ので、第１図はデイスクブレーキの正面図、第２
図は第１図−断面図、第３図は第２図−
断面図、第４図は要部平面図、第５図は他の実施
例を示す要部平面図である。
１……デイスク、２……キヤリパ、４……作動
部、５……反作動部、５ａ，５ｂ，５ｃ……反力
片、６……シリンダ、７……ピストン、９……イ
ンナパツド、１０……裏板、１１……アウタパツ
ド、１２……裏板、１５……ブラケツト。
1 to 4 show one embodiment of the present invention, and FIG. 1 is a front view of a disc brake, and FIG. 2 is a front view of a disc brake.
The figure is Fig. 1 - sectional view, Fig. 3 is Fig. 2 -
A sectional view, FIG. 4 is a plan view of the main part, and FIG. 5 is a plan view of the main part showing another embodiment. DESCRIPTION OF SYMBOLS 1... Disc, 2... Caliper, 4... Actuation part, 5... Reaction part, 5a, 5b, 5c... Reaction force piece, 6... Cylinder, 7... Piston, 9... Inner pad, 10 ... Back plate, 11... Outer pad, 12... Back plate, 15... Bracket.
Claims (1)
クの一側で車体に固定したブラケツトに、一対の
摺動部によつてデイスクの軸方向に摺動案内され
るキヤリパを支持し、該キヤリパはデイスクを跨
ぎ一側の作動部に複数のシリンダを、他側の反作
動部に３本以上の反力片を夫々形成してなるデイ
スクブレーキにおいて、デイスク回入側と回出側
との間に配設される反力片を、デイスク回出側に
偏寄させて配置したことを特徴とするデイスクブ
レーキ。 ２ 前記反力片は、その間隔をデイスク回出側よ
りデイスク回入側を広くしたことを特徴とする特
許請求の範囲第１項記載のデイスクブレーキ。 ３ 前記反力片は、デイスク回出側の反力片に他
の反力片を等間隔で寄せたことを特徴とする特許
請求の範囲第１項記載のデイスクブレーキ。[Scope of Claims] 1. A caliper that is slidably guided in the axial direction of the disk by a pair of sliding parts is supported on a bracket that has a torque receiving part of a pair of pads and is fixed to the vehicle body on one side of the disc. The caliper straddles the disc and has a plurality of cylinders in the actuating part on one side and three or more reaction force pieces in the non-actuating part on the other side, and the caliper has two cylinders on one side and one on the retracting side. A disc brake characterized in that a reaction force piece disposed between the side and the side is biased toward the disc rotation side. 2. The disk brake according to claim 1, wherein the reaction force pieces are spaced wider on the disk retraction side than on the disk retraction side. 3. The disc brake according to claim 1, wherein the reaction force piece is a reaction force piece on the disk retraction side and another reaction force piece gathered at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61180941A JPS6246034A (en) | 1986-07-31 | 1986-07-31 | Disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61180941A JPS6246034A (en) | 1986-07-31 | 1986-07-31 | Disc brake |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55129660A Division JPS5754738A (en) | 1980-09-18 | 1980-09-18 | Disc brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6246034A JPS6246034A (en) | 1987-02-27 |
| JPH0112974B2 true JPH0112974B2 (en) | 1989-03-02 |
Family
ID=16091953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61180941A Granted JPS6246034A (en) | 1986-07-31 | 1986-07-31 | Disc brake |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6246034A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0648193Y2 (en) * | 1989-05-19 | 1994-12-12 | 日信工業株式会社 | Disc brakes for vehicles |
| DE4202394A1 (en) * | 1991-04-04 | 1992-10-08 | Teves Gmbh Alfred | SWIMMING CALIPER PART COVER DISC BRAKE WITH A BRAKE CASE MADE OF LIGHT METAL |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5013091U (en) * | 1973-06-01 | 1975-02-10 | ||
| JPS5124468A (en) * | 1974-08-23 | 1976-02-27 | Aisin Seiki | JIDOSHAYODEISUKUBUREEKI |
| JPS5835866Y2 (en) * | 1977-08-08 | 1983-08-12 | アイシン精機株式会社 | Spot type disc brake |
| JPS54144554A (en) * | 1978-04-28 | 1979-11-10 | Nisshin Kogyo Kk | Caliper body for disc brake |
| JPS54179380U (en) * | 1978-06-08 | 1979-12-18 | ||
| JPS5590825U (en) * | 1978-12-15 | 1980-06-23 | ||
| GB8618282D0 (en) * | 1986-07-26 | 1986-09-03 | Grey J C | Flexible couplings |
-
1986
- 1986-07-31 JP JP61180941A patent/JPS6246034A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6246034A (en) | 1987-02-27 |
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