JPH05149357A - Disc brake - Google Patents
Disc brakeInfo
- Publication number
- JPH05149357A JPH05149357A JP3308697A JP30869791A JPH05149357A JP H05149357 A JPH05149357 A JP H05149357A JP 3308697 A JP3308697 A JP 3308697A JP 30869791 A JP30869791 A JP 30869791A JP H05149357 A JPH05149357 A JP H05149357A
- Authority
- JP
- Japan
- Prior art keywords
- caliper
- center
- pad
- strength
- rigidity
- 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]
【産業上の利用分野】本発明は、キャリパ２分割型ディ
スクブレーキに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a caliper split type disc brake.
【０００２】[0002]
【従来の技術】従来知られたディスクブレーキの中に、
摩擦パッド（以下単にパッドと言う）のディスク接線方
向の偏摩耗を抑制する目的でピストンによるパッドの押
圧中心をパッドのディスク周方向中心からディスクの回
入側又は回出側のいずれかに偏らせた（オフセットし
た）ものがある。2. Description of the Related Art In a conventionally known disc brake,
The center of pressing of the pad by the piston is deviated from the center of the disk circumferential direction of the pad to either the inflow side or the outflow side of the disk in order to suppress uneven wear of the friction pad (hereinafter simply referred to as the pad) in the disk tangential direction. There are some (offset).
【０００３】図３及び図４にその一例を示す。これ等の
ディスクブレーキは、キャリパをインナキャリパ１とア
ウタキャリパ２に分割し、その両者をディスクＤの回入
側と回出側においてディスク軸方向の締結ボルト３、４
により一体的に結合したものであって、図３のブレーキ
は、インナ、アウタの各キャリパに対向して設けるシリ
ンダ５、６の中心をそれぞれ、インナパッド７、アウタ
パッド８の中心から所定量Ｌディスクの接線方向に偏ら
せてある。また、インナキャリパ１にのみシリンダ５を
設けた図４の浮動型ディスクブレーキは、インナ側の押
圧中心のみをディスク接線方向にＬ偏らせてある。パッ
ドはシリンダに同心的に挿入したピストン９で加圧する
ので、押圧中心はシリンダの中心上にある。FIG. 3 and FIG. 4 show an example thereof. In these disc brakes, the caliper is divided into an inner caliper 1 and an outer caliper 2, and both of them are fastened to each other on the entrance side and the exit side of the disk D in the axial direction of the fastening bolts 3, 4, respectively.
In the brake of FIG. 3, the centers of the cylinders 5 and 6 provided to face the inner and outer calipers are respectively separated from the center of the inner pad 7 and the outer pad 8 by a predetermined amount. Is biased in the tangential direction of. Further, in the floating disc brake of FIG. 4 in which the cylinder 5 is provided only on the inner caliper 1, only the pressing center on the inner side is biased L in the disc tangential direction. Since the pad is pressed by the piston 9 which is concentrically inserted in the cylinder, the center of pressing is on the center of the cylinder.
【０００４】なお、片側にシリンダを複数備えるマルチ
ポット型のディスクブレーキについては、複数シリンダ
のサイズを異ならせることにより、シリンダの押圧中心
（合力中心）をシリンダの設置位置を変えずにパッド中
心からディスクの回入側又は回出側に偏らせることも考
えられている。In a multi-pot type disc brake having a plurality of cylinders on one side, the sizes of the plurality of cylinders are made different so that the center of pressing of the cylinder (center of resultant force) is not changed from the pad center without changing the installation position of the cylinder. It is also considered that the disc is biased toward the feeding side or the feeding side.
【０００５】[0005]
【発明が解決しようとする課題】キャリパ２分割型のデ
ィスクブレーキにおける前述の締結ボルトは、ブレーキ
センタを中心にして対称に配置され、かつ、それ等の剛
性、強度配分も対称にしてある。そして、この配置、配
分は、偏摩耗対策としてシリンダの押圧中心を上述した
ようにパッド中心から特定の方向に偏らせる場合にもそ
のまま利用されてる。The above-mentioned fastening bolts in the two-piece caliper type disc brake are symmetrically arranged about the brake center, and their rigidity and strength distribution are also symmetrical. Then, this arrangement and distribution is used as it is when the pressing center of the cylinder is deviated in a specific direction from the pad center as described above as a measure against uneven wear.
【０００６】ところが、この場合、パッドの押圧中心を
オフセットした側の締結ボルトは、反対側のボルトより
も負荷張力が大きくなり、そのために、制動時に加わる
引張力に耐えられなくなって、キャリパの突き合わせ面
が離反したり、ボルトが切断されると言った不具合が生
じてくる。However, in this case, the fastening bolt on the side where the pressing center of the pad is offset has a larger load tension than the bolt on the opposite side, and as a result, the pulling force applied during braking cannot be withstood, and the caliper abuts. Problems such as separation of surfaces and disconnection of bolts will occur.
【０００７】なお、使用ボルトの剛性、強度を高めれば
上記の不具合は無くなるが対称配分の設計思想をそのま
ま残すと、反対側のボルトの負荷に対する剛性、強度が
過剰になってコスト面や軽量化の面で不利になる。If the rigidity and strength of the bolts used are increased, the above problems will be eliminated, but if the design concept of symmetrical distribution is left as it is, the rigidity and strength against the load of the bolts on the opposite side become excessive, and the cost and weight are reduced. Is disadvantageous in terms of.
【０００８】本発明は、上記の問題点を解決することを
課題としている。An object of the present invention is to solve the above problems.
【０００９】[0009]
【課題を解決するための手段】本発明は、上記の課題を
解決するため、ピストンによる摩擦パッドの押圧中心を
摩擦パッドのディスク周方向中心からディスクの回入側
又は回出側のいずれかに偏らせたキャリパ２分割型のデ
ィスクブレーキにおいて、上記インナキャリパとアウタ
キャリパを締結するボルトのうち、上記押圧中心を偏ら
せた側のボルトの剛性、強度を反対側のボルトのそれよ
りも大きくする。In order to solve the above-mentioned problems, the present invention sets the center of pressing of the friction pad by the piston to either the center of the friction pad in the circumferential direction of the disc to the inflow side or the outflow side of the disc. In the biased caliper two-division disc brake, among the bolts for fastening the inner caliper and the outer caliper, the rigidity and strength of the bolt on the side on which the pressing center is biased are made larger than those on the opposite side. ..
【００１０】[0010]
【作用】パッドの押圧中心のオフセットにより、オフセ
ット側締結ボルトの制動時の負荷が反対側のボルトの負
荷より大きくなるが、オフセット側ボルトの剛性、強度
を高めてオフセット側、反対側とも負荷に応じた剛性、
強度をもたせれば、剛性、強度がオフセット側で不足
し、反対側で過剰になると言う問題が無くなる。[Function] The offset of the pressing center of the pad causes the load on the offset side fastening bolt during braking to be greater than the load on the opposite side bolt, but the rigidity and strength of the offset side bolt are increased to increase the load on the offset side and the opposite side. According to the rigidity,
If strength is provided, the problem that rigidity and strength are insufficient on the offset side and excessive on the opposite side is eliminated.
【００１１】[0011]
【実施例】図１に、本発明の一実施例を示す。図に示す
ように、インナキャリパ１には、シリンダ５がその中心
をブレーキセンタＣ上からディスク接線方向にＬオフセ
ットして設けてある。インナパッド７はディスク周方向
中心をブレーキセンタＣ上に置いてシリンダ５に挿入し
たピストン９で加圧する。従って、パッドの押圧中心は
パッド中心からＬディスクの回入側又は回出側に偏るこ
とになる。FIG. 1 shows an embodiment of the present invention. As shown in the figure, the inner caliper 1 is provided with a cylinder 5 whose center is offset L from the brake center C in the disc tangential direction. The inner pad 7 is placed with the center in the circumferential direction of the disc on the brake center C, and is pressurized by the piston 9 inserted into the cylinder 5. Therefore, the pressing center of the pad is deviated from the pad center toward the inflow side or the outflow side of the L disc.
【００１２】アウタキャリパ（図示せず）にシリンダ、
ピストンを設けるものはアウタ側も同様に構成される。A cylinder is attached to the outer caliper (not shown).
The one provided with a piston is also similarly configured on the outer side.
【００１３】さて、図のブレーキは、インナキャリパ１
が２本の締結ボルト３、４によってアウタキャリパに締
結されているが、ここではパッドの押圧中心をボルト４
側にオフセットしたので、ボルト４の剛性、強度をオフ
セットなしのブレーキに用いるボルトのそれよりも大き
くしてある。ボルト３は、オフセット無し時に用いるボ
ルトと同じものでもよいが、オフセットにより負荷が下
がるので、オフセット無し時に用いるものよりも剛性、
強度を少し下げたものが望ましい。Now, the brake shown in the figure is the inner caliper 1
Is fastened to the outer caliper by two fastening bolts 3 and 4, but here the pad pressing center is set to the bolt 4
Since it is offset to the side, the rigidity and strength of the bolt 4 are made larger than those of the bolt used for the brake without offset. The bolt 3 may be the same as the bolt used when there is no offset, but since the load decreases due to the offset, it is more rigid than that used when there is no offset,
It is desirable that the strength is slightly lowered.
【００１４】図２は、他の実施例である。このように、
キャリパはディスク回入側と回出側をそれぞれ数本のボ
ルトで結合することもある。そこで、この場合には、ボ
ルト３ａ、３ｂの剛性、強度の和（これをＡと仮定す
る）とボルト４ａ、４ｂの剛性、強度の和（これをＢと
する）を比較し、Ａ＜Ｂの条件を成立させる。FIG. 2 shows another embodiment. in this way,
The caliper may connect the disc entry side and the entry side with several bolts. Therefore, in this case, the sum of the rigidity and strength of the bolts 3a and 3b (this is assumed to be A) is compared with the sum of the rigidity and strength of the bolts 4a and 4b (this is assumed to be B), and A <B Satisfy the condition of.
【００１５】なお、ディスクの回入側に用いるボルトと
回出側に用いるボルトの剛性、強度の差は、（１）サイ
ズを変える。（２）材質を変える。（３）熱処理の有無
で差をつけると言った任意の方法を利用して生じさせる
ことができる。The difference in rigidity and strength between the bolt used on the turn-in side and the bolt used on the turn-out side of the disk (1) changes the size. (2) Change the material. (3) It can be generated using any method such as making a difference depending on the presence or absence of heat treatment.
【００１６】[0016]
【発明の効果】以上述べたように、本発明によれば、デ
ィスクの回入側と回出側に設けるキャリパ締結ボルトの
剛性、強度に差をつけて剛性、強度配分の適正化を計っ
たので、パッド押圧中心のオフセットによる偏摩耗防止
策を採用したキャリパ２分割型ディスクブレーキのキャ
リパ結合の信頼性維持とコストアップ回避を両立させる
ことが可能になる。As described above, according to the present invention, the caliper fastening bolts provided on the inflow side and the outflow side of the disc are made different in rigidity and strength to optimize the rigidity and strength distribution. Therefore, it is possible to maintain the reliability of the caliper coupling of the two-divided caliper disc brake and the avoidance of cost increase, which employs a measure for preventing uneven wear due to the offset of the pad pressing center.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の一実施例を締結ボルトの頭部を切断し
た状態にして示す正面図FIG. 1 is a front view showing an embodiment of the present invention with a head portion of a fastening bolt being cut off.
【図２】他の実施例を締結ボルトの頭部を切断した状態
にして示す正面図FIG. 2 is a front view showing another embodiment with the heads of fastening bolts cut off.
【図３】パッドの押圧中心をオフセットしたキャリパ２
分割型ディスクブレーキの従来例を示す平面図[Fig. 3] Caliper 2 in which the pressing center of the pad is offset
Plan view showing a conventional example of a split type disc brake
【図４】パッドの押圧中心をオフセットしたキャリパ２
分割型ディスクブレーキの他の従来例を示す平面図[Fig. 4] Caliper 2 in which the pressing center of the pad is offset
The top view which shows the other conventional example of a split type disc brake.
１ インナキャリパ ２ アウタキャリパ ３、３ａ、３ｂ、４、４ａ、４ｂ 締結ボルト ５、６ シリンダ ７ インナパッド ８ アウタパッド ９ ピストン Ｄ ディスク 1 Inner caliper 2 Outer caliper 3, 3a, 3b, 4, 4a, 4b Fastening bolt 5, 6 Cylinder 7 Inner pad 8 Outer pad 9 Piston D disk
Claims (1)
キャリパを互いに突き合わせてディスク軸方向のボルト
で締結し、さらに、ピストンによる摩擦パッドの押圧中
心を摩擦パッドのディスク周方向中心からディスクの回
入側又は回出側のいずれかに偏らせたキャリパ２分割型
のディスクブレーキにおいて、上記インナキャリパとア
ウタキャリパを締結するボルトのうち、上記押圧中心を
偏らせた側のボルトの剛性、強度を反対側のボルトのそ
れよりも大きくしたことを特徴とするディスクブレー
キ。1. An inner caliper and an outer caliper, which are divided into two parts, are butted against each other and fastened with a bolt in the axial direction of the disc, and the center of pressing the friction pad by the piston is moved in from the disc circumferential direction center of the friction pad. In a disc brake of a two-piece type caliper that is biased to either the drive side or the delivery side, of the bolts that fasten the inner caliper and the outer caliper, the bolts on the side that deviates the pressing center have opposite rigidity and strength. Disc brake characterized by making it larger than that of the side bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3308697A JPH05149357A (en) | 1991-11-25 | 1991-11-25 | Disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3308697A JPH05149357A (en) | 1991-11-25 | 1991-11-25 | Disc brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05149357A true JPH05149357A (en) | 1993-06-15 |
Family
ID=17984196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3308697A Pending JPH05149357A (en) | 1991-11-25 | 1991-11-25 | Disc brake |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05149357A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010048302A (en) * | 2008-08-20 | 2010-03-04 | Hitachi Automotive Systems Ltd | Disk brake |
-
1991
- 1991-11-25 JP JP3308697A patent/JPH05149357A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010048302A (en) * | 2008-08-20 | 2010-03-04 | Hitachi Automotive Systems Ltd | Disk brake |
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