JPS63134868U - - Google Patents
Info
- Publication number
- JPS63134868U JPS63134868U JP2632787U JP2632787U JPS63134868U JP S63134868 U JPS63134868 U JP S63134868U JP 2632787 U JP2632787 U JP 2632787U JP 2632787 U JP2632787 U JP 2632787U JP S63134868 U JPS63134868 U JP S63134868U
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- reservoir tank
- communicates
- small diameter
- stepped piston
- 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
- 239000012530 fluid Substances 0.000 claims 2
Landscapes
- Transmission Of Braking Force In Braking Systems (AREA)
Description
第１図はこの考案の１実施例を示す一部断面図
、第２図は同じく要部を拡大して示す断面図であ
る。
１：シリンダ本体、２：大径シリンダ部、３：
小径シリンダ部、４：段付きピストン、５：小径
部、６，８，１３，１４：リツプシール、７：大
径部、１０：サプライ室、１２：シールフロート
、１５：補助室、１６：圧力室、１７：戻しスプ
リング、２０，３３：リリーフポート、２２：リ
ザーバタンク、２３：バルブ、２６：チルトバル
ブ、３５：プツシユロツド。
FIG. 1 is a partial sectional view showing one embodiment of this invention, and FIG. 2 is a sectional view showing an enlarged main part of the same. 1: Cylinder body, 2: Large diameter cylinder part, 3:
Small diameter cylinder section, 4: Stepped piston, 5: Small diameter section, 6, 8, 13, 14: Lip seal, 7: Large diameter section, 10: Supply chamber, 12: Seal float, 15: Auxiliary chamber, 16: Pressure chamber , 17: return spring, 20, 33: relief port, 22: reservoir tank, 23: valve, 26: tilt valve, 35: push rod.
Claims (1)
トンの大径部及び小径部が、それぞれリツプシー
ルを介してシリンダ本体の開口側の大径シリンダ
部及び底部側の小径シリンダ部に摺動自在に嵌合
してサプライ室を画成し、該サプライ室とリザー
バタンクとを、該サプライ室の所定圧以上の圧力
にて開き、該リザーバタンクから該サプライ室へ
の作動液の供給は比較的容易なバルブを介して連
通させ、該シリンダ本体の底部側に摺動自在に嵌
合し、圧力室を画成するシールフロートと段付き
ピストンの小径部との間に補助室を画成し、該シ
ールフロートの復帰を付勢する戻しスプリングを
該圧力室に設け、前記小径部のリツプシールは、
該サプライ室から該補助室への作動液の流通を許
容するものとすると共に、該シールフロートの復
帰時に該圧力室と該リザーバタンクとを連通する
リリーフポート、及び該段付きピストンの復帰時
に該補助室と該リザーバタンクとを連通するリリ
ーフポートを設けたことを特徴とするマスタシリ
ンダ。 The large diameter portion and small diameter portion of the stepped piston pushed by the push rod are slidably fitted into the large diameter cylinder portion on the opening side and the small diameter cylinder portion on the bottom side of the cylinder body via lip seals, respectively. The supply chamber and the reservoir tank are opened at a pressure equal to or higher than the predetermined pressure of the supply chamber, and the supply of hydraulic fluid from the reservoir tank to the supply chamber is performed using a relatively easy valve. An auxiliary chamber is defined between a seal float that communicates with the stepped piston and is slidably fitted to the bottom side of the cylinder body and defines a pressure chamber, and a small diameter portion of the stepped piston. A return spring for urging return is provided in the pressure chamber, and the lip seal of the small diameter portion is
A relief port that allows the flow of working fluid from the supply chamber to the auxiliary chamber and communicates the pressure chamber and the reservoir tank when the seal float returns, and a relief port that communicates the pressure chamber and the reservoir tank when the stepped piston returns. A master cylinder characterized by being provided with a relief port that communicates between an auxiliary chamber and the reservoir tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2632787U JPS63134868U (en) | 1987-02-26 | 1987-02-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2632787U JPS63134868U (en) | 1987-02-26 | 1987-02-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63134868U true JPS63134868U (en) | 1988-09-05 |
Family
ID=30827309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2632787U Pending JPS63134868U (en) | 1987-02-26 | 1987-02-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63134868U (en) |
-
1987
- 1987-02-26 JP JP2632787U patent/JPS63134868U/ja active Pending