JPH0423722Y2 - - Google Patents
Info
- Publication number
- JPH0423722Y2 JPH0423722Y2 JP1987103682U JP10368287U JPH0423722Y2 JP H0423722 Y2 JPH0423722 Y2 JP H0423722Y2 JP 1987103682 U JP1987103682 U JP 1987103682U JP 10368287 U JP10368287 U JP 10368287U JP H0423722 Y2 JPH0423722 Y2 JP H0423722Y2
- Authority
- JP
- Japan
- Prior art keywords
- master cylinder
- connector
- reservoir
- hydraulic
- hydraulic master
- 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
- 239000012530 fluid Substances 0.000 claims description 15
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 1
Landscapes
- Transmission Of Braking Force In Braking Systems (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、自動二輪車や自動三・四輪車等のブ
レーキやクラツチを液圧作動する車両用液圧マス
タシリンダ装置に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a hydraulic master cylinder device for a vehicle that hydraulically operates the brakes and clutches of motorcycles, three-wheeled motor vehicles, four-wheeled motor vehicles, etc.
砂地や泥濘地等を走行する三・四輪バギー車で
は、後輪ブレーキを液圧作動する液圧マスタシリ
ンダを車体フレームの一部に取付け、液圧マスタ
シリンダに作動液を供給するリザーバを別体に形
成して、液圧マスタシリンダよりも高所に配置
し、液圧マスタシリンダとリザーバとを連結ホー
スで接続したものがある。
For three- and four-wheel buggies that drive on sandy or muddy areas, a hydraulic master cylinder that hydraulically operates the rear wheel brakes is attached to a part of the vehicle body frame, and a separate reservoir is installed to supply hydraulic fluid to the hydraulic master cylinder. There is one in which the hydraulic master cylinder and the reservoir are connected by a connecting hose.
しかしながら、この種三・四輪バギー車にあつ
ては、長期間の保管や輸送の際に、後二輪を下側
にして立て置くことがあり、この場合に、リザー
バよりも高位置となつた液圧マスタシリンダ内の
作動液がリザーバに流れ、リザーバ内のエアが気
泡となつて液圧マスタシリンダ内に混入するとい
う問題があつた。
However, when storing or transporting this type of three- and four-wheel buggy vehicle for a long period of time, the rear two wheels are sometimes placed on the bottom, and in this case, the rear two wheels are placed at a higher position than the reservoir. There was a problem in that the hydraulic fluid in the hydraulic master cylinder flows into the reservoir, and the air in the reservoir turns into bubbles and gets mixed into the hydraulic master cylinder.
本考案は、かかる実情を背景にしてなされたも
ので、連結ホースで接続された液圧マスタシリン
ダとリザーバとが逆転した位置関係になつても、
液圧マスタシリンダへの気泡の混入を防止した車
両用液圧マスタシリンダ装置を提供することを目
的としている。 The present invention was developed against this background, and even if the hydraulic master cylinder and reservoir connected by a connecting hose are in an inverted positional relationship,
It is an object of the present invention to provide a hydraulic master cylinder device for a vehicle that prevents air bubbles from entering the hydraulic master cylinder.
本考案は、上述の目的を達成するため、作動液
を昇圧する液圧マスタシリンダと、この液圧マス
タシリンダに作動液を供給するリザーバとを別体
に形成し、液圧マスタシリンダに取付けた管状の
コネクタとリザーバとを連結ホースで接続した車
両用液圧マスタシリンダ装置において、前記コネ
クタの連結ホース接続側に、リザーバ側からの作
動液中の気泡の通過を阻止する小径孔を有するオ
リフイス部材を嵌合し、該オリフイス部材は、コ
ネクタの連結ホース接続側開口端部に内挿される
筒部と、該筒部の一端に連続してコネクタの連結
ホース接続側端面に当接支持されるフランジとを
有していることを特徴としている。
In order to achieve the above-mentioned purpose, the present invention has a hydraulic master cylinder that boosts the pressure of hydraulic fluid and a reservoir that supplies hydraulic fluid to this hydraulic master cylinder, which are formed separately and attached to the hydraulic master cylinder. In a vehicle hydraulic master cylinder device in which a tubular connector and a reservoir are connected by a connecting hose, an orifice member has a small diameter hole on the connecting hose connection side of the connector to prevent passage of air bubbles in the working fluid from the reservoir side. The orifice member includes a cylindrical portion inserted into the opening end of the connecting hose connection side of the connector, and a flange continuous to one end of the cylindrical portion and supported in contact with the end surface of the connecting hose connection side of the connector. It is characterized by having the following.
上記の構成によれば、液圧マスタシリンダがリ
ザーバより高位置となつても、コネクタに嵌合し
たオリフイス部材の小径孔がリザーバからの気泡
の通過を阻止して、液圧マスタシリンダ内へのエ
アの噛み込みを防止する。
According to the above configuration, even if the hydraulic master cylinder is located at a higher position than the reservoir, the small diameter hole of the orifice member fitted to the connector prevents air bubbles from passing from the reservoir and into the hydraulic master cylinder. Prevents air entrapment.
以下、本考案を三・四輪バギー車の後輪用ブレ
ーキに適用した一実施例を図面に基づいて説明す
る。
An embodiment in which the present invention is applied to a rear wheel brake of a three-wheel or four-wheel buggy vehicle will be described below with reference to the drawings.
液圧マスタシリンダ装置1は、作動液Fを昇圧
する縦型の液圧マスタシリンダ2と、該マスタシ
リンダ2に作動液Fを供給する別体のリザーバ3
とを、連結ホース4で接続して構成される。 The hydraulic master cylinder device 1 includes a vertical hydraulic master cylinder 2 that increases the pressure of a hydraulic fluid F, and a separate reservoir 3 that supplies the hydraulic fluid F to the master cylinder 2.
are connected by a connecting hose 4.
液圧マスタシリンダ2は、車体フレームMの後
部下側の湾曲部に、シリンダボデイ7を車体後方
へやや傾斜してボルト5,5にて取付けられ、ま
たリザーバ3は、液圧マスタシリンダ2の上部の
車体フレームMにボルト6にて水平に取付けられ
ている。 The hydraulic master cylinder 2 is attached to the rear lower curved part of the vehicle body frame M with the cylinder body 7 slightly inclined toward the rear of the vehicle body using bolts 5, 5. It is horizontally attached to the upper body frame M with bolts 6.
液圧マスタシリンダ2は、シリンダボデイ7
に、下端を開口したシリンダ孔8が穿設され、該
シリンダ孔8に、ピストン9が液密且つ移動可能
に内挿されている。 The hydraulic master cylinder 2 has a cylinder body 7
A cylinder hole 8 whose lower end is open is bored in the cylinder hole 8, and a piston 9 is inserted into the cylinder hole 8 in a fluid-tight and movable manner.
ピストン9は、ブレーキペダル10に枢支され
るプツシユロツド11の先端に下端を支承され、
上部にカツプシール12を嵌装して、ピストン9
とシリンダ孔8の上部間に液圧室13を画成する
もので、液圧室13には、ピストン9及びプツシ
ユロツド11を非作動方向へ付勢するリターンス
プリング14が縮設されている。 The piston 9 has its lower end supported by the tip of a push rod 11 which is pivotally supported by the brake pedal 10.
Fit the cup seal 12 to the upper part, and then install the piston 9.
A hydraulic pressure chamber 13 is defined between the piston 9 and the upper part of the cylinder hole 8, and a return spring 14 is compressed in the hydraulic pressure chamber 13 and urges the piston 9 and the push rod 11 in the non-operating direction.
シリンダボデイ7には、ピストン9の前進によ
り、液圧室13に発生した圧液を後輪ブレーキへ
供給する吐出口15が、液圧室13の上部に連設
され、また車体後部側には、シリンダ孔8とシリ
ンダボデイ7に突設したボス部16の開口部17
とを連通するリリーフポート18及びサプライポ
ート19が穿設されている。 In the cylinder body 7, a discharge port 15 for supplying the pressure fluid generated in the hydraulic pressure chamber 13 to the rear wheel brake by the advancement of the piston 9 is connected to the upper part of the hydraulic pressure chamber 13, and on the rear side of the vehicle body. , an opening 17 of a boss portion 16 protruding from the cylinder hole 8 and the cylinder body 7.
A relief port 18 and a supply port 19 are provided to communicate with each other.
シリンダボデイ7のボス部16には、L字形に
折曲形成した管状のコネクタ20が、一方の直管
部20aを、開口部17にシールリング21を介
して液密に嵌着され、ビス22にてボス部16に
取付けられており、これにより、コネクタ20の
他方の直管部20bが、シリンダボデイ7と平行
に車体後方へ傾斜配置される。 A tubular connector 20 bent into an L-shape is fitted into the boss portion 16 of the cylinder body 7 with one straight tube portion 20 a liquid-tightly fitted into the opening 17 via a seal ring 21 . As a result, the other straight pipe part 20b of the connector 20 is arranged parallel to the cylinder body 7 and inclined toward the rear of the vehicle body.
前記リザーバ3は、キヤツプ23を被着した貯
槽24の下部に、突出管部24aが一体形成され
ており、突出管部24aとコネクタ20の他方の
直管部20bとには、連結ホース4が端部をそれ
ぞれ締結バンド25にて接続され、リザーバ3の
作動液Fを液圧マスタシリンダ2へ供給するよう
に構成されている。 In the reservoir 3, a protruding pipe part 24a is integrally formed at the lower part of a storage tank 24 to which a cap 23 is attached, and a connecting hose 4 is connected to the protruding pipe part 24a and the other straight pipe part 20b of the connector 20. The ends are connected by fastening bands 25, and are configured to supply the hydraulic fluid F from the reservoir 3 to the hydraulic master cylinder 2.
連結ホース4を接続するコネクタ20の直管部
20bには、リザーバ3側からの作動液F中の気
泡の通過を阻止する小径孔28を有するオリフイ
ス部材26が圧入等により嵌合されている。 An orifice member 26 having a small-diameter hole 28 that prevents air bubbles in the working fluid F from passing through from the reservoir 3 side is fitted into the straight pipe portion 20b of the connector 20 to which the connection hose 4 is connected by press-fitting or the like.
このオリフイス部材26は、直管部20bの開
口端部に内挿される筒部27aと、該筒部27a
の一端に連続して直管部20bの端面に当接支持
されるフランジ27bとを有し、筒部27aに小
径孔28が穿設されている。 This orifice member 26 includes a cylindrical portion 27a that is inserted into the open end of the straight pipe portion 20b, and a cylindrical portion 27a that is inserted into the open end of the straight pipe portion 20b.
It has a flange 27b continuous to one end thereof and abutted and supported on the end surface of the straight pipe portion 20b, and a small diameter hole 28 is bored in the cylindrical portion 27a.
小径孔28は、バギー車の車体を立て置き(第
1図を反時計方向へ90°回転)した際に、液圧マ
スタシリンダ2がリザーバ3よりも高位置とな
り、貯槽24に貯溜される作動液Fのエアが気泡
となつて連結ホース4内を上昇した場合にも、シ
リンダ孔8に気泡が混入して、液圧室13と後輪
ブレーキとの間のブレーキ経路中に、エアの噛み
込みを生じないように設けられるもので、この気
泡は、ブレーキングによつて生じる微細な気泡と
は異なつて、貯槽24から浮力で上昇する大きな
気泡であることから、小径孔28の口径を気泡よ
りも小径、例えば本実施例では3mm程度の小径に
すれば、気泡は小径孔28にて通過を阻止され、
液圧室13と後輪ブレーキ間のエアの噛み込みが
防止され、確実な制動作用を発揮することができ
る。 The small diameter hole 28 allows the hydraulic master cylinder 2 to be at a higher position than the reservoir 3 and to be stored in the storage tank 24 when the body of the buggy is placed upright (rotated 90 degrees counterclockwise in FIG. 1). Even when the air in the liquid F turns into bubbles and rises inside the connecting hose 4, the bubbles get mixed into the cylinder hole 8, causing air to become trapped in the brake path between the hydraulic pressure chamber 13 and the rear wheel brake. Unlike the fine air bubbles generated by braking, these air bubbles are large air bubbles that rise from the storage tank 24 due to buoyancy, so the diameter of the small diameter hole 28 is If the diameter is smaller than that, for example, about 3 mm in this embodiment, the bubbles will be prevented from passing through the small diameter hole 28.
Air is prevented from being trapped between the hydraulic pressure chamber 13 and the rear wheel brake, and a reliable braking action can be achieved.
この小径孔28を有するオリフイス部材26
は、コネクタ20の連結ホース4の接続側の直管
部20bに配置されるので、シリンダボデイ7の
接続側の直管部20aに設ける場合と較べて、車
体立て置き時にもそれほど縦向きとならず、気泡
の浮力を小さく抑えて通過を容易に阻止できると
共に、リリーフポート18とサプライポート19
へ向けて拡開する直管部20aの開口部よりも取
付けし易い。 Orifice member 26 having this small diameter hole 28
Since it is arranged in the straight pipe part 20b on the connection side of the connecting hose 4 of the connector 20, it does not have to be oriented vertically when the vehicle is placed upright, compared to when it is provided in the straight pipe part 20a on the connection side of the cylinder body 7. In addition, the buoyancy of air bubbles can be suppressed to a small level to easily prevent the passage of air bubbles, and the relief port 18 and supply port 19 can be easily prevented from passing through.
This is easier to install than the opening of the straight pipe section 20a that expands toward the outside.
しかも、小径孔28を有するオリフイス部材2
6は、フランジ27bをコネクタ20の連結ホー
ス4の接続側の直管部20bの端面に当接支持さ
れるので、特別の保持手段を用いなくても、コネ
クタ20に接続される連結ホース4の緊迫力で直
管部20bに保持することができる。 Moreover, the orifice member 2 having the small diameter hole 28
Since the flange 27b of the connector 6 is supported in contact with the end surface of the straight pipe portion 20b on the connection side of the connection hose 4 of the connector 20, the connection hose 4 connected to the connector 20 can be held without using any special holding means. It can be held in the straight pipe portion 20b with tension.
また、オリフイス部材26は、筒部27aと該
筒部27aの一端に連続するフランジ27bとの
簡単な構造であつて、小径孔28の口径及びオリ
フイス部材26の径が異なるオリフイス部材を複
数用意し、このオリフイス部材をコネクタに着脱
可能となして各種車体に合わせて交換すれば、現
行の液圧マスタシリンダとコネクタとに何等加工
を加えることなく、リザーバと共にこのまま転用
できるので、経済性の向上が図れる。 Further, the orifice member 26 has a simple structure of a cylindrical portion 27a and a flange 27b continuous to one end of the cylindrical portion 27a, and a plurality of orifice members having different diameters of the small diameter hole 28 and the diameter of the orifice member 26 are prepared. If this orifice member is made removable to the connector and replaced to suit various vehicle bodies, the current hydraulic master cylinder and connector can be reused together with the reservoir without any modification, improving economic efficiency. I can figure it out.
小径孔28の口径は、車体立て置き時に、シリ
ンダボデイ7と共に傾斜する連結ホース接続側の
直管部20bの傾きや、連結ホース4の太さ等の
各種条件に合わせて、気泡の通過を阻止できるよ
う適宜決定される。 The diameter of the small diameter hole 28 is adjusted to prevent air bubbles from passing through, depending on various conditions such as the inclination of the straight pipe section 20b on the connecting hose connection side that slopes together with the cylinder body 7 and the thickness of the connecting hose 4 when the vehicle is placed upright. A decision will be made as appropriate to ensure that this is possible.
尚、上記実施例では、コネクタをL字形に折曲
したもので説明したが、本考案は折曲しない直管
状のコネクタの連結ホース接続側にオリフイス部
材を嵌合してもよい。 In the above embodiment, the connector is bent into an L-shape, but in the present invention, an orifice member may be fitted to the connection hose connection side of a straight connector that is not bent.
本考案は以上説明したように、液圧マスタシリ
ンダに取付けた管状のコネクタに、連結ホースに
よりリザーバを接続し、コネクタの連結ホース接
続側に、リザーバ側からの作動液中の気泡の通過
を阻止する小径孔を有するオリフイス部材を嵌合
し、該オリフイス部材を、コネクタの連結ホース
接続側開口端部に内挿される筒部と、該筒部の一
端に連続してコネクタの連結ホース接続側端面に
当接支持されるフランジとで形成したので、液圧
マスタシリンダがリザーバよりも高位置となつて
も、オリフイス部材の小径孔がリザーバからの気
泡の通過を阻止して、液圧マスタシリンダ内への
エアの噛み込みを防止し、確実な液圧作動を発揮
することができる。
As explained above, the present invention connects a reservoir to a tubular connector attached to a hydraulic master cylinder through a connecting hose, and prevents air bubbles in the hydraulic fluid from passing from the reservoir side to the connecting hose connection side of the connector. An orifice member having a small diameter hole is fitted, and the orifice member is inserted into a cylindrical part inserted into an open end on the connecting hose connection side of the connector, and a cylindrical part that is continuous with one end of the cylindrical part and connected to an end surface on the connecting hose connection side of the connector. The small diameter hole of the orifice member prevents the passage of air bubbles from the reservoir even if the hydraulic master cylinder is at a higher position than the reservoir. This prevents air from getting trapped in the cylinder and ensures reliable hydraulic operation.
しかも、小径孔を有するオリフイス部材は、コ
ネクタの連結ホース接続側から嵌合されるので、
取付けが簡単で、かつ、フランジをコネクタの連
結ホース接続側の端面に当接支持されるので、特
別の保持手段を用いなくても、コネクタに接続さ
れる連結ホースの緊迫力で確実に保持することが
できる。 Moreover, since the orifice member having the small diameter hole is fitted from the connection hose connection side of the connector,
Easy to install, and the flange is supported in contact with the connecting hose connection side end of the connector, so it can be held securely by the tension of the connecting hose connected to the connector without using any special holding means. be able to.
また、オリフイス部材は、筒部と該筒部の一端
に連続するフランジとの簡単な構造であるから、
現行の液圧マスタシリンダとコネクタとに何等加
工を加えることなく取付けられるので、経済性の
向上が図れる。 In addition, since the orifice member has a simple structure of a cylindrical portion and a flange continuous to one end of the cylindrical portion,
Since it can be attached to the current hydraulic master cylinder and connector without any modification, economical efficiency can be improved.
図は本考案の一実施例を示す液圧マスタシリン
ダ装置の断面正面図である。
1……液圧マスタシリンダ装置、2……液圧マ
スタシリンダ、3……リザーバ、4……連結ホー
ス、7……シリンダボデイ、8……シリンダ孔、
9……ピストン、11……プツシユロツド、13
……液圧室、15……吐出口、16……ボス部、
17……開口部、20……コネクタ、20a……
シリンダボデイ側の直管部、20b……ホース接
続側の直管部、24……貯槽、24a……突出管
部、26……オリフイス部材、27a……筒部、
27b……フランジ、28……小径孔、M……車
体フレーム、F……作動液。
The figure is a sectional front view of a hydraulic master cylinder device showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Hydraulic pressure master cylinder device, 2...Hydraulic pressure master cylinder, 3...Reservoir, 4...Connection hose, 7...Cylinder body, 8...Cylinder hole,
9... Piston, 11... Push rod, 13
... Hydraulic pressure chamber, 15 ... Discharge port, 16 ... Boss part,
17...opening, 20...connector, 20a...
Straight pipe part on the cylinder body side, 20b... Straight pipe part on the hose connection side, 24... Storage tank, 24a... Projecting pipe part, 26... Orifice member, 27a... Cylindrical part,
27b...Flange, 28...Small diameter hole, M...Vehicle frame, F...Hydraulic fluid.
Claims (1)
液圧マスタシリンダに作動液を供給するリザーバ
とを別体に形成し、液圧マスタシリンダに取付け
た管状のコネクタとリザーバとを連結ホースで接
続した車両用液圧マスタシリンダ装置において、
前記コネクタの連結ホース接続側に、リザーバ側
からの作動液中の気泡の通過を阻止する小径孔を
有するオリフイス部材を嵌合し、該オリフイス部
材は、コネクタの連結ホース接続側開口端部に内
挿される筒部と、該筒部の一端に連続してコネク
タの連結ホース接続側端面に当接支持されるフラ
ンジとを有していることを特徴とする車両用液圧
マスタシリンダ装置。 A hydraulic master cylinder that increases the pressure of hydraulic fluid and a reservoir that supplies hydraulic fluid to this hydraulic master cylinder are formed separately, and a tubular connector attached to the hydraulic master cylinder and the reservoir are connected with a connecting hose. In vehicle hydraulic master cylinder devices,
An orifice member having a small diameter hole that prevents passage of air bubbles in the working fluid from the reservoir side is fitted into the connection hose connection side of the connector, and the orifice member is fitted into the connection hose connection side open end of the connector. A hydraulic master cylinder device for a vehicle, characterized in that it has a cylindrical portion to be inserted, and a flange continuous to one end of the cylindrical portion and abutted and supported by an end surface on the connecting hose connection side of a connector.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987103682U JPH0423722Y2 (en) | 1987-07-06 | 1987-07-06 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987103682U JPH0423722Y2 (en) | 1987-07-06 | 1987-07-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS648470U JPS648470U (en) | 1989-01-18 |
JPH0423722Y2 true JPH0423722Y2 (en) | 1992-06-03 |
Family
ID=31334732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987103682U Expired JPH0423722Y2 (en) | 1987-07-06 | 1987-07-06 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0423722Y2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5827869U (en) * | 1981-08-17 | 1983-02-23 | 富士通株式会社 | connector |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6232126Y2 (en) * | 1981-05-18 | 1987-08-17 |
-
1987
- 1987-07-06 JP JP1987103682U patent/JPH0423722Y2/ja not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5827869U (en) * | 1981-08-17 | 1983-02-23 | 富士通株式会社 | connector |
Also Published As
Publication number | Publication date |
---|---|
JPS648470U (en) | 1989-01-18 |
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