JP4028405B2 - Pin slide type caliper body for disc brakes for vehicles - Google Patents

Pin slide type caliper body for disc brakes for vehicles Download PDF

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Publication number
JP4028405B2
JP4028405B2 JP2003025757A JP2003025757A JP4028405B2 JP 4028405 B2 JP4028405 B2 JP 4028405B2 JP 2003025757 A JP2003025757 A JP 2003025757A JP 2003025757 A JP2003025757 A JP 2003025757A JP 4028405 B2 JP4028405 B2 JP 4028405B2
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Japan
Prior art keywords
disk
bridge
caliper body
axial direction
action
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Expired - Lifetime
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JP2003025757A
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Japanese (ja)
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JP2004239279A (en
Inventor
敬 小野
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Nissin Kogyo Co Ltd
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Nissin Kogyo Co Ltd
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Priority to JP2003025757A priority Critical patent/JP4028405B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は、自動車等の各種走行車両に用いられる多ポット形式のディスクブレーキのキャリパボディであって、車体側のキャリパブラケットに、スライドピンを介してディスク軸方向にスライド可能に支持されるピンスライド型のキャリパボディに関する。
【0002】
【従来の技術】
ディスクロータの両側部に対向配置される作用部及び反作用部をディスクロータの外周を跨ぐブリッジ部で連結し、前記作用部のディスク回入側と回出側とに設けたピン支持腕に取り付けたスライドピンを、ディスクロータの作用部側で車体に固設されるキャリパブラケットのピン挿通孔に挿通してディスク軸方向にスライド可能に支持されるピンスライド型のキャリパボディには、車両の大型化に伴うディスクロータの大型化に対応させるために、前記作用部に複数のシリンダ孔をディスクロータの周方向に並設した、いわゆる多ポット型のキャリパボディがある(例えば、特許文献1参照。)。
【0003】
【特許文献1】
特開2000−145835号公報(第2頁、図6〜7)
【0004】
【発明が解決しようとする課題】
ところで、ディスクブレーキでは、制動時にディスクロータと摩擦パッドとの摺接による反力で、キャリパボディの作用部と反作用部とを反ディスク方向へ押し返し、ブリッジ部を支点として作用部と反作用部のディスクロータ内周側が開いてハの字変形させようとする力が作用する。このため、キャリパボディの変形を防止するための剛性を確保しようとして作用部から前記ブリッジ部を跨いで反作用部にかけてのボディ外面全体を厚肉に形成することが考えられる。しかしながら、この手法により剛性を高めようとすると、キャリパボディの重量が増加することはもとより、キャリパボディの鋳込み成形時の鋳込み材料の引け等にバラツキが生じ製造が困難である等の課題を抱えていた。
【0005】
そこで本発明は、キャリパボディのハの字変形に対する剛性力を確保しながらも軽量化等を図った車両用ディスクブレーキのピンスライド型キャリパボディを提供することを目的としている。
【0006】
【課題を解決するための手段】
上記した目的を達成するため、本発明は、ディスクロータの両側部に対向配置される作用部及び反作用部をディスクロータの外周を跨ぐブリッジ部で連結するとともに、前記作用部に複数のシリンダ孔をディスクロータの周方向に並設し、前記作用部のディスク回入側と回出側とに設けたピン支持腕に取り付けたスライドピンを、ディスクロータの作用部側で車体に固設されるキャリパブラケットのピン挿通孔に挿通してディスク軸方向にスライド可能に支持される車両用ディスクブレーキのピンスライド型キャリパボディにおいて、該キャリパボディのディスク回入側及び回出側のサイドリブ並びに前記各シリンダ孔間のセンターリブを、キャリパボディの外面部にディスク軸方向に互いに平行に***して設け、前記サイドリブは、前記反作用部からブリッジ部をディスク軸方向に直線的に延び、前記作用部にて互いに離反する方向に延びて前記ピン支持腕にそれぞれ連続させ、前記サイドリブにディスク軸方向の肉抜き部をそれぞれ凹溝状に連続形成し、前記センターリブは、前記反作用部からブリッジ部を経て作用部までディスク軸方向に直線的に延び、前記センターリブに、前記ブリッジ部から反作用部の上部にかけてディスク軸方向の肉抜き部を凹溝状に連続形成するとともに前記作用部に肉抜き部を形成し、かつ、センターリブの両肉抜き部の間にディスク回転方向のリブを形成し、前記センターリブと前記ディスク回転方向のリブとにより、全体として前記ブリッジ部方向からみて略H型を呈し、前記ブリッジ部のサイドリブとセンターリブとの間に、該ブリッジ部両側に配置される摩擦パッドを視認可能な開口部を形成したことを特徴としている。
【0007】
【発明の実施の形態】
以下、本発明を2ポット型のキャリパボディに適用した一実施形態例を図面に基づいて、さらに詳細に説明する。ディスクブレーキ1のキャリパボディ2は、矢印A方向に回転するディスクロータ3の両側部に対向配置される作用部2aと反作用部2bとをディスクロータ3の外周を跨ぐブリッジ部2cで連結し、作用部2aのディスク回入側と回出側とにピン支持腕2d,2dを設け、該ピン支持腕2d,2dにスライドピン4,4をボルト5にて取り付け、該スライドピン4,4を介してディスクロータ3の作用部側で車体に固設されるキャリパブラケット6にディスク軸方向にスライド可能に支持されている。
【0008】
作用部2aには、2つのシリンダ孔7,7が形成され、各シリンダ孔7にはコップ状のピストン8が角シール9を介して液密かつ移動可能に内挿され、各シリンダ孔7と各ピストン8の底部間にはそれぞれ液圧室10が画成され、両シリンダ孔7,7間の底壁外側には、両液圧室10,10に連通するユニオン孔11が開口するボス部12設けられ、該ユニオン孔11を通して別途の図示しない液圧マスタシリンダで昇圧された作動液が両液圧室10,10に供給される。一方のシリンダ孔7の側壁外側には、作動液中の混入エアを外部へ排除するためのブリューダボス部13が形成され、該ブリューダボス部12にブリューダスクリュー14が螺着されている。
【0009】
反作用部2bは、ディスク半径方向内側へ向けて同一長さで平行に突設された3つの反力爪2e,2f,2gを有し、ディスク回入側と回出側の反力爪2e,2gは、シリンダ孔7,7のディスク回入側と回出側とに設けられ、中央部の反力爪2fは、シリンダ孔7,7の間と対応する位置に設けられている。反作用部2bと前記ピストン8との間のブリッジ部2c内側には、一対の摩擦パッド15,15がディスクロータ3を挟んで対向配置されている。
【0010】
キャリパブラケット6は、ディスクロータ3の作用部側で車体に固設される略U字状の本体部6aと、該本体部6aの腕部先端から、ブリッジ部2c側方のディスク回入側と回出側とでディスクロータ3の外周を跨ぐ一対のキャリパ支持腕6b,6bと、反作用部2b側でキャリパ支持腕6b,6bの先端同士を連結するタイバー6cとを有し、キャリパ支持腕6b,6bには、それぞれ有底のピン挿通孔6dが作用部側に開口してディスク軸方向に設けられ、該ピン挿通孔6d,6dに前記スライドピン4,4が挿通されている。
【0011】
各摩擦パッド15は、ディスクロータ3の側面と摺接するライニング16と、該ライニング16を保持する裏板17とからなり、裏板17の両側部には耳片17a,17aが突設されている。各摩擦パッド15は、ディスクロータ3の作用部側または反作用部側で、耳片17a,17aをキャリパ支持腕6b,6bのトルク受凹部6e,6eにリテーナ兼パッドスプリング18を介してそれぞれ保持されている。
【0012】
キャリパボディ2は、該キャリパボディ2のディスク回入側及び回出側並びに前記各シリンダ孔7,7間の各外面部に、作用部2aからブリッジ部2cを跨いで反作用部2bに至るサイドリブ19,20及びセンターリブ21がディスク軸方向に互いに平行に***して設けられている。すなわち、サイドリブ19,20は、反力爪2e,2gの基部位置からブリッジ部2cをディスク軸方向に直線的に延び、作用部2aにおいて、互いに離反する方向に延びて前記ピン支持腕2d,2dにそれぞれ連続している。センターリブ21は、中央の反力爪2fの基部位置からブリッジ部2cを経て作用部2aまでディスク軸方向に直線的に延びている。
【0013】
サイドリブ19,20は、ブリッジ部2cから反作用部2bに反力爪2e,2gの上部にかけてディスク軸方向の肉抜き部19a,20aがそれぞれ凹溝状に連続形成されている。センターリブ21は、ブリッジ部2cから反作用部2bの反力爪2fの上部にかけてディスク軸方向の肉抜き部21aが凹溝状に連続形成され、作用部2aの部分には、肉抜き部21bが形成され、両肉抜き部21a,21bの間には、ディスク回転方向のリブが21cが形成され、全体として図1に示す如く平面視略H型をしている。
【0014】
サイドリブ19とセンターリブ21との間及びセンターリブ21とサイドリブ20との間は、ディスク軸方向の凹溝22,23が形成されている。そして、ブリッジ部2cでは、各リブ19,21、21,20間に、ブリッジ部2cの両側に配置される摩擦パッド15,15を視認可能な開口部24,24がそれぞれ形成され、凹溝22,23の一部に形成されたこれら開口部24,24を通して、摩擦パッド15のライニング16の摩耗状況を視認できるようにしている。
【0015】
このように構成されたディスクブレーキ1は、制動作用によって液圧マスタシリンダで昇圧された作動液が双方の液圧室10に供給されて、それぞれのピストン8がシリンダ孔7をディスクロータ方向へ前進して、作用部側の摩擦パッド14をディスクロータ3の一側面に押圧し、キャリパボディ2が押圧の反作用でスライドピン4,4に案内されて作用部方向へ移動し、反力爪2e,2f,2gが反作用部側の摩擦パッド14をディスクロータ3の他側面に押圧して制動作用が行われる。
【0016】
この制動作用時に、ディスクロータ3と摩擦パッド15,15との摺接による制動反力が、ピストン8と反力爪2e,2f,2gとを介してキャリパボディ2の作用部2aと反作用部2bとに作用し、これら作用部2aと反作用部2bとを反ディスク方向へ押し返して、ブリッジ部2cを支点にして作用部2aと反作用部2bをハの字変形させようとするが、制動反力が最もかかる反力爪2e,2f,2gの位置に対応して、サイドリブ19,20及びセンターリブ21が設けられているから、キャリパボディ2のハの字変形が生じ難くなる。
【0017】
そして、作用部2aからブリッジ部2cを跨いで反作用部2bに至る外面部の一部を***してリブ19,20,21を形成したから、キャリパボディ2のハの字変形に対する剛性力を確保しつつ、各リブ間の肉厚を薄くすることで、キャリパボディ2の軽量化を図ることができる。また、開口部24及び肉抜き部19a,20a,21a,21bを形成することにより、さらなる軽量化が図れる。さらに、サイドリブ19,20をピン支持腕2d,2dにそれぞれ連続させることにより、ピン支持腕2d,2dの剛性力を向上させることができる。
【0018】
なお、上記実施形態例では、2ポット型のキャリパボディに本発明を適用したもので説明したが、3ポット以上のキャリパボディにも適用できることは勿論である。
【0019】
【発明の効果】
以上説明したように、本発明は、制動作用時の反力によるキャリパボディのハの字変形に対する剛性力を確保しつつ、キャリパボディの軽量化を図ることができる。また、各リブ間に摩擦パッドを視認可能な開口部を設けることにより、摩擦パッドの摩耗量の確認を行うことができるとともに、各リブに設けた肉抜き部と相俟ってさらなる軽量化が図れる。
【図面の簡単な説明】
【図1】 本発明の一実施形態例を示すディスクブレーキの平面図
【図2】 同じくディスクブレーキの正面図
【図3】 同じくディスクブレーキの背面図
【図4】 図1のIV−IV断面図
【図5】 図2のV−V断面図
【符号の説明】
1…ディスクブレーキ、2…キャリパボディ、2a…作用部、2b…反作用部、2c…ブリッジ部、2d…ピン支持腕、3…ディスクロータ、4…スライドピン、6…キャリパブラケット、7…シリンダ孔、8…ピストン、19,20…サイドリブ、19a,20a…肉抜き部、21…センターリブ、21a,21b…肉抜き部、24…開口部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a caliper body of a multi-pot type disc brake used for various traveling vehicles such as automobiles, and is a pin slide supported by a caliper bracket on the vehicle body side so as to be slidable in a disc axial direction via a slide pin. Concerning the caliper body of the mold.
[0002]
[Prior art]
The action part and the reaction part arranged opposite to both sides of the disk rotor are connected by a bridge part that straddles the outer periphery of the disk rotor, and attached to the pin support arm provided on the disk entry side and the delivery side of the action part. The pin slide type caliper body, which is supported by the slide pin through the pin insertion hole of the caliper bracket fixed to the vehicle body on the working side of the disc rotor and slidable in the disc axial direction, has an increased vehicle size. In order to cope with the increase in size of the disk rotor accompanying the above, there is a so-called multi-pot type caliper body in which a plurality of cylinder holes are arranged in the working portion in the circumferential direction of the disk rotor (see, for example, Patent Document 1). .
[0003]
[Patent Document 1]
JP 2000-145835 A (second page, FIGS. 6 to 7)
[0004]
[Problems to be solved by the invention]
By the way, in the disc brake, the reaction force caused by the sliding contact between the disc rotor and the friction pad at the time of braking pushes back the action portion and reaction portion of the caliper body in the anti-disc direction, and the action portion and reaction portion disk with the bridge portion as a fulcrum. A force acts to open the rotor inner periphery and cause the C-shaped deformation. For this reason, it is conceivable that the entire outer surface of the body from the action part to the reaction part across the bridge part is formed thick in order to secure rigidity for preventing the deformation of the caliper body. However, when trying to increase the rigidity by this method, not only does the weight of the caliper body increase, but also there are problems such as variations in the cast material at the time of casting the caliper body, making it difficult to manufacture. It was.
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to provide a pin slide type caliper body for a vehicle disc brake that achieves a reduction in weight while ensuring rigidity against a C-shaped deformation of the caliper body.
[0006]
[Means for Solving the Problems]
In order to achieve the above-described object, the present invention connects an action part and a reaction part arranged opposite to both sides of a disk rotor by a bridge part that straddles the outer periphery of the disk rotor, and a plurality of cylinder holes are formed in the action part. A caliper that is arranged side by side in the circumferential direction of the disk rotor and that is fixed to the vehicle body on the disk rotor action part side by attaching slide pins attached to pin support arms provided on the disk entry side and the delivery side of the action part. In a pin slide type caliper body of a vehicle disc brake that is inserted into a pin insertion hole of a bracket and supported so as to be slidable in the disc axial direction, the side ribs on the disc insertion side and the extraction side of the caliper body, and the cylinder holes A center rib is provided on the outer surface of the caliper body so as to protrude in parallel with each other in the disk axial direction. The bridge portion extends linearly from the use portion in the disk axial direction, extends in a direction away from each other by the action portion, and continues to the pin support arms, respectively, and the side ribs are recessed in the disk axial direction. The center rib extends linearly in the disk axial direction from the reaction part to the action part through the bridge part, and extends in the disk axial direction from the bridge part to the upper part of the reaction part. A punched portion is continuously formed in the shape of a concave groove, a thinned portion is formed in the action portion, and a rib in the disk rotating direction is formed between both the hollowed portions of the center rib, and the center rib and the disk are rotated. by the direction of the ribs, has a substantially H-shaped as viewed from the bridge portion direction as a whole, between the side ribs and the center rib of the bridge portion, the bridge portion It is characterized in that an opening was formed visible friction pads arranged on the side.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment in which the present invention is applied to a two-pot caliper body will be described in more detail with reference to the drawings. The caliper body 2 of the disc brake 1 connects the action portion 2a and the reaction portion 2b, which are arranged opposite to both sides of the disc rotor 3 rotating in the direction of arrow A, with a bridge portion 2c straddling the outer periphery of the disc rotor 3, Pin support arms 2d and 2d are provided on the disk entrance side and the exit side of the portion 2a, and slide pins 4 and 4 are attached to the pin support arms 2d and 2d with bolts 5 via the slide pins 4 and 4, respectively. The disk rotor 3 is supported by a caliper bracket 6 fixed to the vehicle body so as to be slidable in the disk axial direction.
[0008]
Two cylinder holes 7 are formed in the action portion 2a, and a cup-shaped piston 8 is inserted into each cylinder hole 7 through a square seal 9 so as to be fluid-tight and movable. A hydraulic chamber 10 is defined between the bottoms of the pistons 8, and a boss portion where a union hole 11 communicating with the hydraulic chambers 10, 10 opens on the outer side of the bottom wall between the cylinder holes 7, 7. 12 is provided, hydraulic fluid is pressurized by the hydraulic pressure master cylinder which otherwise shown through the union hole 11 is supplied to both the hydraulic chamber 10, 10. On the outside of the side wall of one cylinder hole 7, a bleeder boss portion 13 is formed for excluding mixed air in the working fluid to the outside, and a brewer screw 14 is screwed to the bleeder boss portion 12.
[0009]
The reaction portion 2b has three reaction force claws 2e, 2f, 2g protruding in parallel with the same length toward the inner side in the radial direction of the disk, and the reaction force claws 2e, 2 g is provided on the disk insertion side and the extraction side of the cylinder holes 7, 7, and the reaction force claw 2 f in the center is provided at a position corresponding to the space between the cylinder holes 7, 7. A pair of friction pads 15, 15 are disposed opposite to each other with the disc rotor 3 interposed inside the bridge portion 2 c between the reaction portion 2 b and the piston 8.
[0010]
The caliper bracket 6 includes a substantially U-shaped main body portion 6a fixed to the vehicle body on the working portion side of the disk rotor 3, and a disc insertion side on the side of the bridge portion 2c from the arm end of the main body portion 6a. The caliper support arm 6b has a pair of caliper support arms 6b and 6b straddling the outer periphery of the disc rotor 3 on the outlet side, and a tie bar 6c that connects the tips of the caliper support arms 6b and 6b on the reaction portion 2b side. , 6b are respectively provided with bottomed pin insertion holes 6d that open to the working portion side and are provided in the disk axial direction, and the slide pins 4, 4 are inserted through the pin insertion holes 6d, 6d.
[0011]
Each friction pad 15 includes a lining 16 that is in sliding contact with the side surface of the disk rotor 3, and a back plate 17 that holds the lining 16. Ear pieces 17 a and 17 a protrude from both sides of the back plate 17. . Each friction pad 15 holds the ear pieces 17a, 17a in the torque receiving recesses 6e, 6e of the caliper support arms 6b, 6b via the retainer / pad spring 18 on the action part side or the reaction part side of the disc rotor 3, respectively. ing.
[0012]
The caliper body 2 has side ribs 19 extending from the action portion 2a to the reaction portion 2b across the bridge portion 2c on the disk insertion side and the extraction side of the caliper body 2 and the outer surface portions between the cylinder holes 7 and 7. , 20 and a center rib 21 are provided so as to protrude parallel to each other in the disk axial direction. That is, the side ribs 19 and 20 linearly extend from the base position of the reaction force claws 2e and 2g in the direction of the disc axis in the bridge portion 2c, and extend in a direction away from each other at the action portion 2a to extend the pin support arms 2d and 2d. Each is continuous. The center rib 21 linearly extends in the disk axial direction from the base position of the central reaction force claw 2f to the action portion 2a via the bridge portion 2c.
[0013]
The side ribs 19 and 20 are respectively formed with concave portions 19a and 20a in the disk axial direction from the bridge portion 2c to the reaction portion 2b and above the reaction force claws 2e and 2g. The center rib 21 has a hollow portion 21a continuously formed in a concave groove shape from the bridge portion 2c to the upper portion of the reaction force claw 2f of the reaction portion 2b, and the thin portion 21b is formed in the portion of the action portion 2a. A rib 21c in the disk rotation direction is formed between both the lightening portions 21a and 21b, and has a substantially H shape in plan view as a whole as shown in FIG.
[0014]
Between the side rib 19 and the center rib 21 and between the center rib 21 and the side rib 20, concave grooves 22 and 23 in the disk axial direction are formed. In the bridge portion 2c, openings 24 and 24 through which the friction pads 15 and 15 arranged on both sides of the bridge portion 2c can be visually recognized are formed between the ribs 19, 21, 21, and 20, respectively. The wear of the lining 16 of the friction pad 15 can be visually confirmed through these openings 24 and 24 formed in a part of.
[0015]
In the disc brake 1 configured as described above, the hydraulic fluid boosted by the hydraulic master cylinder by the braking action is supplied to both hydraulic chambers 10, and each piston 8 advances in the cylinder hole 7 toward the disc rotor. Then, the friction pad 14 on the working part side is pressed against one side surface of the disk rotor 3, and the caliper body 2 is guided by the slide pins 4 and 4 by the reaction of the pressing and moves toward the working part, and the reaction force claw 2e, 2f and 2g press the friction pad 14 on the reaction part side against the other side of the disk rotor 3 to perform a braking action.
[0016]
During this braking action, the braking reaction force due to the sliding contact between the disk rotor 3 and the friction pads 15 and 15 is caused by the action part 2a and the reaction part 2b of the caliper body 2 via the piston 8 and the reaction force claws 2e, 2f and 2g. The action part 2a and the reaction part 2b are pushed back in the anti-disk direction, and the action part 2a and the reaction part 2b are deformed in a U shape with the bridge part 2c as a fulcrum. Since the side ribs 19 and 20 and the center rib 21 are provided corresponding to the positions of the reaction force claws 2e, 2f, and 2g, the caliper body 2 is less likely to be deformed in a letter C shape.
[0017]
And since the ribs 19, 20, and 21 are formed by raising a part of the outer surface part extending from the action part 2a to the reaction part 2b across the bridge part 2c, the rigidity of the caliper body 2 against the C-shaped deformation is secured. However, the caliper body 2 can be reduced in weight by reducing the thickness between the ribs. Moreover, further weight reduction can be achieved by forming the opening part 24 and the lightening part 19a, 20a, 21a, 21b. Furthermore, the rigidity of the pin support arms 2d and 2d can be improved by connecting the side ribs 19 and 20 to the pin support arms 2d and 2d, respectively.
[0018]
In the embodiment described above, the present invention is applied to a two-pot caliper body. However, the present invention can be applied to a caliper body having three or more pots.
[0019]
【The invention's effect】
As described above, the present invention can reduce the weight of the caliper body while ensuring the rigidity of the caliper body against the C-shaped deformation caused by the reaction force during braking action. In addition, by providing an opening through which the friction pad can be visually recognized between the ribs, it is possible to check the wear amount of the friction pad, and in addition to the lightening part provided in each rib, the weight can be further reduced. I can plan.
[Brief description of the drawings]
FIG. 1 is a plan view of a disc brake showing an embodiment of the present invention. FIG. 2 is a front view of the disc brake. FIG. 3 is a rear view of the disc brake. FIG. 5 is a cross-sectional view taken along the line VV in FIG.
DESCRIPTION OF SYMBOLS 1 ... Disc brake, 2 ... Caliper body, 2a ... Action part, 2b ... Reaction part, 2c ... Bridge part, 2d ... Pin support arm, 3 ... Disc rotor, 4 ... Slide pin, 6 ... Caliper bracket, 7 ... Cylinder hole , 8 ... piston, 19, 20 ... side rib, 19a, 20a ... thinned portion, 21 ... center rib, 21a, 21b ... thinned portion, 24 ... opening

Claims (1)

ディスクロータの両側部に対向配置される作用部及び反作用部をディスクロータの外周を跨ぐブリッジ部で連結するとともに、前記作用部に複数のシリンダ孔をディスクロータの周方向に並設し、前記作用部のディスク回入側と回出側とに設けたピン支持腕に取り付けたスライドピンを、ディスクロータの作用部側で車体に固設されるキャリパブラケットのピン挿通孔に挿通してディスク軸方向にスライド可能に支持される車両用ディスクブレーキのピンスライド型キャリパボディにおいて、該キャリパボディのディスク回入側及び回出側のサイドリブ並びに前記各シリンダ孔間のセンターリブを、キャリパボディの外面部にディスク軸方向に互いに平行に***して設け、前記サイドリブは、前記反作用部からブリッジ部をディスク軸方向に直線的に延び、前記作用部にて互いに離反する方向に延びて前記ピン支持腕にそれぞれ連続させ、前記サイドリブにディスク軸方向の肉抜き部をそれぞれ凹溝状に連続形成し、前記センターリブは、前記反作用部からブリッジ部を経て作用部までディスク軸方向に直線的に延び、前記センターリブに、前記ブリッジ部から反作用部の上部にかけてディスク軸方向の肉抜き部を凹溝状に連続形成するとともに前記作用部に肉抜き部を形成し、かつ、センターリブの両肉抜き部の間にディスク回転方向のリブを形成し、前記センターリブと前記ディスク回転方向のリブとにより、全体として前記ブリッジ部方向からみて略H型を呈し、前記ブリッジ部のサイドリブとセンターリブとの間に、該ブリッジ部両側に配置される摩擦パッドを視認可能な開口部を形成したことを特徴とする車両用ディスクブレーキのピンスライド型キャリパボディ。The action part and the reaction part arranged opposite to both sides of the disk rotor are connected by a bridge part that straddles the outer periphery of the disk rotor, and a plurality of cylinder holes are juxtaposed in the circumferential direction of the disk rotor in the action part. The slide pin attached to the pin support arm provided on the disk entrance side and the exit side of the disk is inserted into the pin insertion hole of the caliper bracket fixed to the vehicle body on the disk rotor action part side, and the disk axial direction In a pin slide type caliper body of a vehicle disc brake that is slidably supported on the outer side of the caliper body, the side ribs on the disk inlet side and the outlet side of the caliper body and the center ribs between the cylinder holes are formed The side ribs are provided so as to protrude in parallel to each other in the disk axial direction, and the bridge portion extends from the reaction part to the disk axial direction. Linearly extending in the direction away from each other by the action portion and continuing to the pin support arms, respectively, and the side ribs are continuously formed in the shape of concave grooves in the disk axial direction, the center rib is , Extending linearly in the disk axial direction from the reaction part to the action part via the bridge part, and continuously forming a hollow part in the disk axial direction in the center rib from the bridge part to the upper part of the reaction part. In addition, a thinning portion is formed in the working portion, and a rib in the disk rotating direction is formed between both the thinning portions of the center rib, and the bridge as a whole is formed by the center rib and the rib in the disk rotating direction. has a generally H-shaped when viewed from the section direction, between the side ribs and the center rib of the bridge portion, viewable friction pads disposed on opposite sides the bridge portion Pin slide type caliper body of a vehicular disk brake, characterized in that the formation of the mouth.
JP2003025757A 2003-02-03 2003-02-03 Pin slide type caliper body for disc brakes for vehicles Expired - Lifetime JP4028405B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
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EP4083463A1 (en) * 2021-04-26 2022-11-02 Akebono Brake Industry Co., Ltd. Caliper for opposed piston type disc brake

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JP6249609B2 (en) * 2013-02-28 2017-12-20 日立オートモティブシステムズ株式会社 Disc brake
KR101448780B1 (en) 2013-06-07 2014-10-08 현대자동차 주식회사 Caliper unit
CN103322087B (en) * 2013-06-19 2015-07-15 浙江亚太机电股份有限公司 Integrated floating calipers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4083463A1 (en) * 2021-04-26 2022-11-02 Akebono Brake Industry Co., Ltd. Caliper for opposed piston type disc brake

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