JP2538670Y2 - Load response type hydraulic controller - Google Patents
Load response type hydraulic controllerInfo
- Publication number
- JP2538670Y2 JP2538670Y2 JP1990030863U JP3086390U JP2538670Y2 JP 2538670 Y2 JP2538670 Y2 JP 2538670Y2 JP 1990030863 U JP1990030863 U JP 1990030863U JP 3086390 U JP3086390 U JP 3086390U JP 2538670 Y2 JP2538670 Y2 JP 2538670Y2
- Authority
- JP
- Japan
- Prior art keywords
- lever
- housing
- response type
- pistons
- load
- 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 - Fee Related
Links
Landscapes
- Hydraulic Control Valves For Brake Systems (AREA)
Description
【考案の詳細な説明】 〔考案の目的〕 （産業上の利用分野） 本考案は、制動液圧を二つの独立した配管系統によつ
て車両の左右後輪に設けた各ホイールシリンダへ夫々伝
達するリヤ独立二系統制動装置に使用される荷重応答型
液圧制御装置に関する。[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention transmits brake fluid pressure to each wheel cylinder provided on the left and right rear wheels of the vehicle by two independent piping systems. The present invention relates to a load response type hydraulic control device used for a rear independent two-system braking device.
（従来の技術） 上記した荷重応答型液圧制御装置として、前記各ホイ
ールシリンダに伝達される制動液圧を一対のバルブと協
働して制御する一対のピストンを一つのハウジングに並
列に組付けてこれらの一端を前記ハウジングから液密的
且つ軸方向へ摺動可能に突出させるとともに、付勢機構
により前記両ピストンをそれらの他端側へ車両積載荷重
に応じて付勢するようにしたものがあり、例えば、実開
昭56−40060号公報や実開昭58−59655号公報にて開示さ
れている。(Prior Art) As the load response type hydraulic pressure control device described above, a pair of pistons for controlling the brake hydraulic pressure transmitted to each wheel cylinder in cooperation with a pair of valves are assembled in parallel in one housing. And one end thereof is slidably and axially slidably projected from the housing, and the biasing mechanism urges the two pistons toward the other end thereof in accordance with the vehicle load. These are disclosed, for example, in Japanese Utility Model Laid-Open No. 56-40060 and Japanese Utility Model Laid-Open No. 58-59655.
（考案が解決しようとする課題） ところが、上記した従来の装置においては、付勢機構
の構成が複雑であり、液圧制御装置の性能にバラツキが
生じたり、性能が不安定になるばかりでなく、その組付
性が悪いという問題があつた。(Problems to be Solved by the Invention) However, in the above-described conventional device, the configuration of the urging mechanism is complicated, and the performance of the hydraulic pressure control device varies, and the performance becomes unstable. However, there was a problem that the assemblability was poor.
そこで、本考案は、当該荷重応答型液圧制御装置にお
いて、付勢機構の構成を簡素化し、性能の安定化を図る
と共に、その組付性を向上することをその技術的課題と
する。In view of the above, the technical object of the present invention is to simplify the configuration of the urging mechanism, stabilize the performance, and improve the assemblability of the load response type hydraulic pressure control device.
（課題を解決するための手段） 上記した技術的課題を解決するための手段は、当該荷
重応答型液圧制御装置において、付勢機構を、全体が樹
脂成形品から成りその揺動中心端部を前記ハウジングに
揺動可能に組付けられて前記一対のピストンの軸の中間
位置でピストンの軸方向へ揺動するレバーと、該レバー
の揺動端部に一体に形成された係止部に車両積載荷重に
応じた付勢力を付与するばね部材と、前記レバーの中間
部外周に形成された溝部に中央部の凹所にて直接当接し
揺動可能に支承されて両端部にて前記各ピストンの一端
に当接するイコライザとにより構成すると共に、前記レ
バーの揺動中心端部には前記ハウジングへの当接によっ
て前記レバーの中間部の揺動量を前記イコライザの凹所
の支承代未満とした所定量に規制するストッパ部を設け
たことである。(Means for Solving the Problems) A means for solving the above-mentioned technical problem is that, in the load-responsive hydraulic pressure control device, the biasing mechanism is entirely formed of a resin molded product, and a swing center end thereof. A lever pivotally mounted on the housing and pivoting in the axial direction of the piston at an intermediate position between the shafts of the pair of pistons, and a locking portion formed integrally with the pivoting end of the lever. A spring member for applying an urging force corresponding to a vehicle loading load, and a groove formed on the outer periphery of an intermediate portion of the lever, which is directly abutted at a concave portion at a central portion and is swingably supported, and the respective An equalizer that abuts one end of the piston, and at the pivot center end of the lever, the swing amount of the intermediate portion of the lever is made smaller than the bearing allowance of the concave portion of the equalizer by abutting on the housing. Storing to regulate That is, a pa section is provided.
（作用及び考案の効果） これによれば、イコライザが樹脂製レバーに一体成形
される溝部に支承されるため、部品点数が削減できると
共に、ハウジングに当接してレバーの中間部の揺動をイ
コライザの凹所の支承代未満に規制するようにレバーの
揺動中心端部に一体成形されたストツパ部により、イコ
ライザの凹所をレバーの溝部に支承させてレバーをハウ
ジングに枢支させれば、イコライザのレバーからの脱落
を抑制することができるので、当該荷重応答型液圧制御
装置の組付性を向上することができる。According to this, since the equalizer is supported by the groove formed integrally with the resin lever, the number of parts can be reduced, and the swing of the intermediate portion of the lever in contact with the housing is reduced by the equalizer. If the stopper of the equalizer is supported in the groove of the lever by the stopper part integrally formed at the pivot center end of the lever so as to regulate it to less than the bearing allowance of the recess, and the lever is pivotally supported by the housing, Since the falling off of the equalizer from the lever can be suppressed, the assemblability of the load response type hydraulic control device can be improved.
また、揺動中心，溝部及びばね部材の係止部をレバー
に一体成形しているため、レバー比（レバーの揺動中心
から揺動端である力点までの距離と揺動中心から作用点
までの距離の比）の精度を向上することができ、当該荷
重応答型液圧制御装置の性能を安定させることができ
る。In addition, since the swing center, the groove and the locking portion of the spring member are integrally formed on the lever, the lever ratio (the distance from the swing center of the lever to the force point which is the swing end and the distance between the swing center and the action point) ), And the performance of the load-responsive hydraulic control device can be stabilized.
（実施例） 以下、本考案に従つた荷重応答型液圧制御装置の一実
施例を図面に基づき説明する。(Embodiment) Hereinafter, an embodiment of a load response type hydraulic control device according to the present invention will be described with reference to the drawings.
第１図には、本考案の一例に係わる荷重応答型液圧制
御装置を採用したリヤ独立二系統制動装置の概略が示さ
れている。荷重応答型液圧制御装置100は、マスタシリ
ンダ10と左右後輪の各ホイールシリンダ42,44を連結す
る液圧管路中に配置されている。FIG. 1 shows an outline of a rear independent two-system braking device employing a load response type hydraulic control device according to an example of the present invention. The load response type hydraulic pressure control device 100 is disposed in a hydraulic line connecting the master cylinder 10 and the wheel cylinders 42 and 44 of the left and right rear wheels.
マスタシリンダ10は、公知のタンデムマスタシリンダ
で、ブレーキペダル20の踏力に応じて互いに独立した加
圧室11,12に等しい液圧を発生させる。一方の加圧室11
に発生した液圧は、管路31を介して左側前輪のホイール
シリンダ41へ伝達されるとともに、管路31から分岐した
管路32,荷重応答型液圧制御装置100及び管路33を介して
右側後輪のホイールシリンダ42へ伝達される。また、他
方の加圧室12に発生した液圧は、管路34を通して右側前
輪のホイールシリンダ43伝達されるとともに、管路34か
ら分岐した管路35,荷重応答型液圧制御装置100及び管路
36を介して左側後輪のホイールシリンダ44へ伝達され
る。The master cylinder 10 is a known tandem master cylinder, and generates a hydraulic pressure equal to the pressure chambers 11 and 12 independent of each other in accordance with the depression force of the brake pedal 20. One pressurizing chamber 11
Is transmitted to the wheel cylinder 41 of the left front wheel via the conduit 31, and via the conduit 32 branched from the conduit 31, the load response type hydraulic pressure control device 100 and the conduit 33. The power is transmitted to the wheel cylinder 42 of the right rear wheel. Further, the hydraulic pressure generated in the other pressurizing chamber 12 is transmitted to the wheel cylinder 43 of the right front wheel through the pipe 34, and is also branched from the pipe 34, the pipe 35, the load response type hydraulic pressure control device 100, and the pipe. Road
It is transmitted to the wheel cylinder 44 of the left rear wheel via 36.
荷重応答型液圧制御装置100は、第１図〜第３図に示
したように、車両のバネ上部材50に組付けられるハウジ
ング110と同ハウジング110に組付けた一対のピストン12
0（一方は図示しない）及び付勢機構140を備えている。As shown in FIGS. 1 to 3, the load response type hydraulic control device 100 includes a housing 110 mounted on a sprung member 50 of the vehicle and a pair of pistons 12 mounted on the housing 110.
0 (one not shown) and an urging mechanism 140 are provided.
各ピストン120（一方は図示しない）はハウジング110
に並列に組付けられていて、同じばね力の図示しないコ
イルスプリングにより図示上方へ付勢されると共に第３
図に示すようにハウジング110から液密的且つ軸方向へ
摺動可能に突出させられる一端120a,130aを付勢機構140
により図示上方へ付勢され得るように構成されている。
尚、図示はしないが、各ピストン120等の他端には夫々
ハウジング110に独立形成される管路35から管路36に至
る液圧管路及び管路32から管路33に至る液圧管路内に配
される弾性弁座と協働して公知のプロポーシヨニングバ
ルブを構成する弁部が形成されている。Each piston 120 (one not shown) is housing 110
And are urged upward by a coil spring (not shown) having the same spring force and
As shown in the figure, one end 120a, 130a protruded from the housing 110 so as to be slidable in a liquid-tight and axial direction.
Is configured to be urged upward in the figure.
Although not shown, the other end of each of the pistons 120 and the like has a hydraulic line extending from the line 35 to the line 36 and a hydraulic line extending from the line 32 to the line 33 formed independently of the housing 110. Is formed in cooperation with the elastic valve seat disposed in the known proportioning valve.
付勢機構140は、レバー141,ばね部材142及びイコライ
ザ143により構成されている。レバー141は、ハウジング
110の下端に形成された凹部111内にピン144を介して両
ピストン120等の軸心に平行な平面内にて摺動可能に組
付けられている。尚、レバー141は樹脂成形品で構成さ
れており、ピン144が嵌合される孔141a,イコライザ143
を支承する溝部141b及びばね部材142の一端を係止する
係止部141cを一体に備えていると共に、凹部1111の底部
112に当接してレバー141の揺動を所定量に規制するスト
ツパ部141dを一体に備えている。また、レバー141は凹
部111の両側面にて横振れ（第１図において図示左右方
向の振れ）を防止されている。The biasing mechanism 140 includes a lever 141, a spring member 142, and an equalizer 143. Lever 141 is the housing
It is slidably mounted on a plane parallel to the axis of the pistons 120 and the like via a pin 144 in a concave portion 111 formed at the lower end of the 110. The lever 141 is formed of a resin molded product, and has a hole 141a into which the pin 144 is fitted, an equalizer 143.
And a locking portion 141c for locking one end of the spring member 142, and a bottom portion of the concave portion 1111.
A stopper portion 141d is provided integrally with the stopper portion 141d to abut on the stopper 112 and regulate the swing of the lever 141 to a predetermined amount. The lever 141 is prevented from lateral vibration (vibration in the horizontal direction in FIG. 1) on both side surfaces of the concave portion 111.
ばね部材142は、レバー141の揺動端に形成される係止
部141cに車両積載荷重に応じた付勢力を付与するもので
あつて、上端を係止部141cに係止され、一端をバネ下部
材60に組付けられるロツド145に固定されたリテーナ146
に下端を係止されている。尚、ロツド145の他端はレバ
ー141の揺動端に形成された孔141eに貫通されており、
車両積載荷重が増大すると孔141e内を図示上方へ移動し
ばね部材142の荷重を高める。The spring member 142 applies a biasing force corresponding to the vehicle load to the locking portion 141c formed at the swinging end of the lever 141. The upper end of the spring member 142 is locked by the locking portion 141c. Retainer 146 fixed to rod 145 assembled to lower member 60
The lower end is locked. The other end of the rod 145 is penetrated through a hole 141e formed at the swing end of the lever 141,
When the load on the vehicle increases, the inside of the hole 141e moves upward in the drawing to increase the load on the spring member 142.
イコライザ143は、ハウジング110の凹部111に直交し
て各ピストン120等の軸心が通る平面を含むように形成
されたスリツト113内に配され、第３図に示すようにそ
の中央部の凹所143aにてレバー141の溝部141bに揺動可
能に支承されていて、両端部にて各ピストンの一端120
a,130aに当接している。イコライザ143は、ストツパ部1
41dがハウジング110の凹部111の底部112に当接点するこ
とにより、レバー141の中間部（溝部141bが儲けられて
いる部位）の揺動を凹所143aの支承代Ｓ未満に規制され
るため、組付後はレバー141より脱落しないようになつ
ている。150は、ハウジング110の下端に嵌着されてイコ
ライザ143及びレバー141の揺動中心等を覆うブーツで、
これらの部位を保護している。The equalizer 143 is disposed in a slit 113 formed so as to include a plane perpendicular to the concave portion 111 of the housing 110 and passing through the axis of each piston 120 and the like. As shown in FIG. At 143a, it is swingably supported in the groove 141b of the lever 141, and one end 120 of each piston is provided at both ends.
a, 130a. The equalizer 143 is the stop unit 1
Since the contact of 41d with the bottom 112 of the recess 111 of the housing 110 restricts the swing of the intermediate portion of the lever 141 (the portion where the groove 141b is formed) to be less than the bearing allowance S of the recess 143a, After assembly, the lever 141 does not fall off. 150 is a boot fitted to the lower end of the housing 110 and covering the swing center of the equalizer 143 and the lever 141, etc.
These sites are protected.
以上の構成からなる本実施例においては、制動時にマ
スタシリンダ10のブレーキ液圧が所定圧（折点液圧）以
上になると後輪のホイールシリンダ42,44のブレーキ液
圧が所定の割合で減圧されると共に、該折点液圧を積載
荷重に応じて可変とする周知な制御が行われる。また、
いずれかの系統が破損した場合には、上記した制動時に
正常な系統側のピストンに付勢機構140の付勢力が全て
作用することになつて折点液圧が正常時に比して高くな
り、制動力不足が解消される。In the present embodiment having the above configuration, when the brake fluid pressure of the master cylinder 10 becomes equal to or higher than a predetermined pressure (breaking point fluid pressure) during braking, the brake fluid pressure of the wheel cylinders 42, 44 of the rear wheels is reduced at a predetermined rate. At the same time, a well-known control for changing the folding point hydraulic pressure according to the load is performed. Also,
If any of the systems is broken, the urging force of the urging mechanism 140 acts on the normal system-side piston at the time of the above-mentioned braking, so that the break point hydraulic pressure becomes higher than in the normal state, The lack of braking force is eliminated.
しかして本実施例においては、イコライザ143が樹脂
製のレバー141に一体成形される溝部141bに支承される
ため、部品点数が削減できると共に、ハウジング110の
凹部111の底部112に当接してレバー141の中間部（溝部1
41bの形成される部位）の揺動をイコライザ143の凹所14
3aの支承代Ｓ未満に規制するようにレバー141の揺動中
心側端部に一体成形されたストツパ部141dにより、イコ
ライザ143の凹所143aをレバー141の溝部141bに支承させ
てレバー141をハウジング110に枢支させれば、イコライ
ザ143のレバー141からの脱落を抑制することができるの
で、当該荷重応答型液圧制御装置の組付性を向上するこ
とができる。In this embodiment, since the equalizer 143 is supported by the groove 141b integrally formed with the resin lever 141, the number of parts can be reduced, and the lever 141 is brought into contact with the bottom 112 of the recess 111 of the housing 110. In the middle (groove 1
The rocking of the part where 41b is formed)
The stopper 141d formed integrally with the swing center side end of the lever 141 so as to regulate the lever 141 to less than the bearing margin S of 3a allows the recess 143a of the equalizer 143 to be supported by the groove 141b of the lever 141, and the lever 141 to be housing. If the equalizer 143 is pivotally supported, the equalizer 143 can be prevented from falling off from the lever 141, so that the load response type hydraulic control device can be easily assembled.
また、揺動中心（孔141a），溝部141b及びばね部材14
2の係止部141cをレバー141に一体成形しているため、レ
バー比（レバー141の揺動中心から揺動端である力点ま
での距離と揺動中心から作用点までの距離の比）の精度
を向上することができ、当該荷重応答型液圧制御装置の
性能を安定させることができる。Further, the swing center (hole 141a), the groove 141b and the spring member 14
Since the locking portion 141c of the second step is integrally formed with the lever 141, the lever ratio (the ratio of the distance from the pivot center of the lever 141 to the force point at the pivot end and the distance from the pivot center to the action point) Accuracy can be improved, and the performance of the load response type hydraulic control device can be stabilized.
第１図は本考案に係わる荷重応答型液圧制御装置を含む
制動装置の概略構成図、第２図は本考案に係わる荷重応
答型液圧制御装置の一実施例を示す一部断面図、第３図
は第２図のＡ−Ａ線に沿う一部拡大断面図である。 100……荷重応答型液圧制御装置、110……ハウジング、
111……凹部、112……底部、120……ピストン、120a,13
0a……ピストンの一端、140……付勢機構、141……レバ
ー、141b……溝部、141c……係止部、142……ばね部
材、143……イコライザ、143a……凹所、Ｓ……支承
代。1 is a schematic configuration diagram of a braking device including a load response type hydraulic pressure control device according to the present invention, FIG. 2 is a partial cross-sectional view showing one embodiment of the load response type hydraulic pressure control device according to the present invention, FIG. 3 is a partially enlarged sectional view taken along line AA of FIG. 100 …… Load response type hydraulic controller, 110 …… Housing,
111 ... recess, 112 ... bottom, 120 ... piston, 120a, 13
0a: One end of the piston, 140: urging mechanism, 141: lever, 141b: groove, 141c: locking part, 142: spring member, 143: equalizer, 143a: recess, S ... ... Bearing charges.
Claims (1)
て車両の左右後輪に設けた各ホィールシリンダへ夫々伝
達するリヤ独立二系統制動装置に使用され、前記各ホィ
ールシリンダに伝達される制動液圧を一対のバルブと協
働して制御する一対のピストンを一つのハウジングに並
列に組付けてこれらの一端を前記ハウジングから液密的
且つ軸方向へ摺動可能に突出させると共に、付勢機構に
より前記両ピストンをそれらの他端側へ車両積載荷重に
応じて付勢してなる荷重応答型液圧制御装置において、
前記付勢機構を、全体が樹脂成形品から成りその揺動中
心端部を前記ハウジングに揺動可能に組付けられて前記
一対のピストンの軸の中間位置でピストンの軸方向へ揺
動するレバーと、該レバーの揺動端部に一体に形成され
た係止部に車両積載荷重に応じた付勢力を付与するばね
部材と、前記レバーの中間部外周に形成された溝部に中
央部の凹所にて直接当接し揺動可能に支承されて両端部
にて前記各ピストンの一端に当接するイコライザとによ
り構成すると共に、前記レバーの揺動中心端部には前記
ハウジングへの当接によって前記レバーの中間部の揺動
量を前記イコライザの凹所の支承代未満とした所定量に
規制するストッパ部を設けたことを特徴とする荷重応答
型液圧制御装置。1. A braking system which is used in a rear independent two-brake system for transmitting brake fluid pressure to respective wheel cylinders provided on the left and right rear wheels of a vehicle by two independent piping systems, and which is transmitted to the respective wheel cylinders. A pair of pistons for controlling hydraulic pressure in cooperation with a pair of valves are assembled in parallel to one housing, and one end of each of them is slidably and axially slidably protruded from the housing. In a load response type hydraulic pressure control device, wherein the two pistons are biased toward the other end thereof by a mechanism in accordance with the vehicle load,
A lever that is formed entirely of a resin molded product and that has a pivoting center end pivotally mounted to the housing and that pivots in the axial direction of the piston at an intermediate position between the shafts of the pair of pistons; A spring member for applying an urging force corresponding to a vehicle load to a locking portion formed integrally with a swinging end portion of the lever; and a concave portion at a central portion formed in a groove formed on an outer periphery of an intermediate portion of the lever. And an equalizer that is directly abutted and swingably supported at both ends and abuts one end of each of the pistons at both ends, and the swing center end of the lever is abutted against the housing by the abutment with the housing. A load-response type hydraulic control device, comprising a stopper for regulating the swing amount of the intermediate portion of the lever to a predetermined amount smaller than the bearing allowance of the concave portion of the equalizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990030863U JP2538670Y2 (en) | 1990-03-26 | 1990-03-26 | Load response type hydraulic controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990030863U JP2538670Y2 (en) | 1990-03-26 | 1990-03-26 | Load response type hydraulic controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03121171U JPH03121171U (en) | 1991-12-11 |
| JP2538670Y2 true JP2538670Y2 (en) | 1997-06-18 |
Family
ID=31533581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990030863U Expired - Fee Related JP2538670Y2 (en) | 1990-03-26 | 1990-03-26 | Load response type hydraulic controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2538670Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01106757A (en) * | 1987-10-20 | 1989-04-24 | Aisin Seiki Co Ltd | Manufacture of lever provided with bushing for load sensitive type hydraulic control device |
| JPH01212650A (en) * | 1988-02-19 | 1989-08-25 | Tokico Ltd | Device for controlling fluid pressure depending on load |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63148567U (en) * | 1987-03-21 | 1988-09-30 |
-
1990
- 1990-03-26 JP JP1990030863U patent/JP2538670Y2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01106757A (en) * | 1987-10-20 | 1989-04-24 | Aisin Seiki Co Ltd | Manufacture of lever provided with bushing for load sensitive type hydraulic control device |
| JPH01212650A (en) * | 1988-02-19 | 1989-08-25 | Tokico Ltd | Device for controlling fluid pressure depending on load |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03121171U (en) | 1991-12-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |