JPS62123474U - - Google Patents
Info
- Publication number
- JPS62123474U JPS62123474U JP1202686U JP1202686U JPS62123474U JP S62123474 U JPS62123474 U JP S62123474U JP 1202686 U JP1202686 U JP 1202686U JP 1202686 U JP1202686 U JP 1202686U JP S62123474 U JPS62123474 U JP S62123474U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- diameter portion
- primary piston
- piston
- small diameter
- 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
- 239000007788 liquid Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims 3
Landscapes
- Transmission Of Braking Force In Braking Systems (AREA)
Description
第１図は本考案の一実施例の縦断面図、第２図
は第１図の一部拡大図、第３図他実施例の縦断面
図、第４図は更に別の実施例の縦断面図である。
符号の説明、１０…マスタシリンダ、１１…シ
リンダボデー、１２…シリンダ、１２ａ…シリン
ダ小径部、１２ｂ…シリンダ大径部、１３…ピス
トン、１３ａ…ピストン大径部、１３ｂ…ピスト
ン小径部、１８…第１加圧液室、２０…第２加圧
液室、２１…カツプシール係止部材、２２…リン
グ型カツプシール、３１…第１リターンスプリン
グ、３２…リテーナ、３５…第２リターンスプリ
ング、３６…ストツプボルト、５１…リテーナ。
Fig. 1 is a longitudinal sectional view of one embodiment of the present invention, Fig. 2 is a partially enlarged view of Fig. 1, Fig. 3 is a longitudinal sectional view of another embodiment, and Fig. 4 is a longitudinal sectional view of yet another embodiment. It is a front view. Explanation of symbols, 10... Master cylinder, 11... Cylinder body, 12... Cylinder, 12a... Cylinder small diameter part, 12b... Cylinder large diameter part, 13... Piston, 13a... Piston large diameter part, 13b... Piston small diameter part, 18... First pressurized liquid chamber, 20... Second pressurized liquid chamber, 21... Cup seal locking member, 22... Ring type cup seal, 31... First return spring, 32... Retainer, 35... Second return spring, 36... Stop bolt , 51...retainer.
Claims (1)
ツト並びに第１及び第２アウトレツトとを有する
シリンダボデーと、前記シリンダの小径部内に摺
動可能に嵌合され且つその一側にシリンダの小径
部と接触するカツプシールが取付けられた大径部
と前記シリンダ外に突出する小径部とを有したプ
ライマリピストンと、前記シリンダの小径部内に
摺動可能に嵌合され且つその両端部にシリンダの
小径部と接触するカツプシールが取付けられたセ
カンダリピストンと、前記シリンダの一端大径部
内にシリンダボデーに対して固定関係に配置され
てその外周部にてシリンダ大径部に液密的に接触
するとともにその内周側のリツプ部にて前記プラ
イマリピストンの小径部に摺動可能に接触する固
定カツプシールとを備え、前記プライマリピスト
ンの大径部の一側と前記セカンダリピストン間に
第１アウトレツトと連通する第１加圧液室が、前
記セカンダリピストンと前記シリンダの端壁間に
第２アウトレツトと連通する第２加圧液室が、前
記プライマリピストンの大径部の他側と前記固定
カツプシールとの間に第１インレツトと連通する
第１サプライ液室が、前記セカンダリピストンの
外周に第２インレツトと連通する第２サプライン
液室がそれぞれ形成され、前記第１加圧液室には
前記プライマリピストンに対し所定量離間可能に
組付けられ且つ前記セカンダリピストンと当接可
能なリテーナと前記プライマリピストン間に張設
された第１リターンスプリングが、前記第２加圧
液室内には前記セカンダリピストンを前記プライ
マリピストン側へ付勢する第２リターンスプリン
グがそれぞれ配置されて成るタンデム型マスタシ
リンダにおいて、非作動状態では前記第２リター
ンスプリングの付勢力が前記リテーナに伝達しな
いようにするとともに前記プライマリピストンと
前記リテーナ及び前記第１リターンスプリングが
一体的に微少量だけ自由に摺動可能にして成るタ
ンデム型マスタシリンダ。 a cylinder body having a cylinder open at one end, first and second inlets, and first and second outlets; a cylinder body that is slidably fitted within a small diameter portion of the cylinder and is in contact with the small diameter portion of the cylinder on one side thereof; a primary piston having a large diameter portion to which a cup seal is attached and a small diameter portion protruding outside the cylinder; and a primary piston that is slidably fitted within the small diameter portion of the cylinder and contacts the small diameter portion of the cylinder at both ends thereof. a secondary piston to which a cup seal is attached; a fixed cup seal that slidably contacts the small diameter portion of the primary piston at a lip portion thereof, and a first pressurizing member that communicates with a first outlet between one side of the large diameter portion of the primary piston and the secondary piston; a second pressurized fluid chamber communicating with a second outlet between the secondary piston and an end wall of the cylinder; a second pressurized fluid chamber communicating with a second outlet between the other side of the large diameter portion of the primary piston and the fixed cup seal; A first supply liquid chamber communicating with the primary piston is formed on the outer periphery of the secondary piston, and a second supply liquid chamber communicating with the second inlet is formed on the outer periphery of the secondary piston, and the first pressurized liquid chamber is spaced apart from the primary piston by a predetermined distance. A first return spring tensioned between the primary piston and a retainer that can be assembled and abutted against the secondary piston is in the second pressurized fluid chamber, and is configured to move the secondary piston toward the primary piston. In the tandem master cylinder, in which second return springs are disposed, the biasing force of the second return springs is not transmitted to the retainer in a non-operating state, and the biasing force of the second return springs is not transmitted to the retainer, and the biasing force of the primary piston, the retainer, and the first A tandem type master cylinder with a return spring that can freely slide by a small amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1202686U JPS62123474U (en) | 1986-01-30 | 1986-01-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1202686U JPS62123474U (en) | 1986-01-30 | 1986-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62123474U true JPS62123474U (en) | 1987-08-05 |
Family
ID=30799772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1202686U Pending JPS62123474U (en) | 1986-01-30 | 1986-01-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62123474U (en) |
-
1986
- 1986-01-30 JP JP1202686U patent/JPS62123474U/ja active Pending