JPH0165747U - - Google Patents
Info
- Publication number
- JPH0165747U JPH0165747U JP1987161236U JP16123687U JPH0165747U JP H0165747 U JPH0165747 U JP H0165747U JP 1987161236 U JP1987161236 U JP 1987161236U JP 16123687 U JP16123687 U JP 16123687U JP H0165747 U JPH0165747 U JP H0165747U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- hole
- piston
- hydraulic
- chamber
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Transmission Of Braking Force In Braking Systems (AREA)
Description
第１図乃至第３図は本考案の一実施例を示し、
第１図は液圧マスタシリンダの断面正面図、第２
図はバルブステムの一部断面斜視図、第３図は第
１図の―断面図、第４図及び第５図は他の実
施例を示し、第４図は液圧マスタシリンダ先端部
の断面正面図、第５図は第４図の―断面図で
ある。
１…液圧マスタシリンダ、２…シリンダボデイ
、３…シリンダ孔、４Ａ…第１ピストン、４Ｂ…
第２ピストン、５Ａ…第１液圧室、５Ｂ…第２液
圧室、８Ａ…第１給油室、８Ｂ…２給油室、１２
Ａ，１２Ｂ…スプリング、１３Ａ，１３Ｂ…貫通
孔、１４Ａ…第１ストツパピン、１４Ｂ…第２ス
トツパピン、１７…スプリング、１８…係止リン
グ、１９ａ…弁孔、１９ｂ…連通孔、１９ｃ…連
接孔、１９ｄ…弁座、１９ｅ…油孔、２０…リテ
ーナ、２１…鋼球等の金属製のボール弁、２２…
バルブステム、２２ａ…芯軸、２２ｂ…スリーブ
、２２ｃ…翼片、２３…弁バネ、２４…液通路。
1 to 3 show an embodiment of the present invention,
Figure 1 is a cross-sectional front view of the hydraulic master cylinder;
The figure is a partial cross-sectional perspective view of the valve stem, Figure 3 is a cross-sectional view of Figure 1, Figures 4 and 5 show other embodiments, and Figure 4 is a cross-section of the tip of the hydraulic master cylinder. The front view and FIG. 5 are cross-sectional views of FIG. 4. 1... Hydraulic pressure master cylinder, 2... Cylinder body, 3... Cylinder hole, 4A... First piston, 4B...
2nd piston, 5A...1st hydraulic pressure chamber, 5B...2nd hydraulic pressure chamber, 8A...1st oil supply chamber, 8B...2 oil supply chamber, 12
A, 12B... Spring, 13A, 13B... Through hole, 14A... First stopper pin, 14B... Second stopper pin, 17... Spring, 18... Locking ring, 19a... Valve hole, 19b... Communication hole, 19c... Connection hole, 19d... Valve seat, 19e... Oil hole, 20... Retainer, 21... Metal ball valve such as steel ball, 22...
Valve stem, 22a...core shaft, 22b...sleeve, 22c...wing piece, 23...valve spring, 24...liquid passage.
Claims (1)
ストンとの間に液圧室を画成し、液圧室に開口す
る弁孔と、ピストン後部側の給油室に開口する連
通孔をピストンに連設して、弁孔内に弁体を支持
するバルブステムを連通孔に挿通し、ピストンの
前進時に、弁孔底部の弁座に弁体を着座させて、
液圧室に圧液を発生させるセンタバルブ型車両用
液圧マスタシリンダにおいて、前記弁体をバルブ
ステムと別体のボール弁で形成し、該ボール弁と
弁孔先端部との間にボール弁を弁座方向へ付勢す
る弁バネを縮設すると共に、バルブステムには、
弁孔を介して液圧室と給油室とを連通する液通路
を形成したことを特徴とするセンタバルブ型車両
用液圧マスタシリンダ。 A hydraulic pressure chamber is defined between the bottom of the cylinder hole and the piston inserted into the cylinder hole, and a valve hole that opens into the hydraulic pressure chamber and a communication hole that opens into the oil supply chamber on the rear side of the piston are connected to the piston. and inserting the valve stem supporting the valve body into the valve hole into the communication hole, and seating the valve body on the valve seat at the bottom of the valve hole when the piston moves forward.
In a center valve type vehicle hydraulic master cylinder that generates pressure fluid in a hydraulic chamber, the valve body is formed by a ball valve separate from a valve stem, and a ball valve is provided between the ball valve and the tip of the valve hole. In addition to compressing the valve spring that urges the valve toward the valve seat, the valve stem has a
A center valve type hydraulic master cylinder for a vehicle, characterized in that a fluid passage is formed that communicates a fluid pressure chamber and an oil supply chamber through a valve hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987161236U JP2532922Y2 (en) | 1987-10-21 | 1987-10-21 | Center valve type hydraulic master cylinder for vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987161236U JP2532922Y2 (en) | 1987-10-21 | 1987-10-21 | Center valve type hydraulic master cylinder for vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0165747U true JPH0165747U (en) | 1989-04-27 |
| JP2532922Y2 JP2532922Y2 (en) | 1997-04-16 |
Family
ID=31443992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987161236U Expired - Lifetime JP2532922Y2 (en) | 1987-10-21 | 1987-10-21 | Center valve type hydraulic master cylinder for vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2532922Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04127068U (en) * | 1991-05-10 | 1992-11-19 | トキコ株式会社 | master cylinder |
| JPH04135868U (en) * | 1991-06-11 | 1992-12-17 | 株式会社ナブコ | master cylinder |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54122284U (en) * | 1978-02-16 | 1979-08-27 |
-
1987
- 1987-10-21 JP JP1987161236U patent/JP2532922Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54122284U (en) * | 1978-02-16 | 1979-08-27 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04127068U (en) * | 1991-05-10 | 1992-11-19 | トキコ株式会社 | master cylinder |
| JPH04135868U (en) * | 1991-06-11 | 1992-12-17 | 株式会社ナブコ | master cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2532922Y2 (en) | 1997-04-16 |