JPS6448402U - - Google Patents
Info
- Publication number
- JPS6448402U JPS6448402U JP14399487U JP14399487U JPS6448402U JP S6448402 U JPS6448402 U JP S6448402U JP 14399487 U JP14399487 U JP 14399487U JP 14399487 U JP14399487 U JP 14399487U JP S6448402 U JPS6448402 U JP S6448402U
- Authority
- JP
- Japan
- Prior art keywords
- check
- flow path
- check poppet
- poppet
- main
- 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
Description
図面第１，２図はこの考案の第１実施例を示す
もので、第１図は断面図、第２図は要部の拡大断
面図、第３図は第２実施例の要部拡大断面図、第
４図は従来の装置の断面図である。
２１……バルブ本体、２２，２３……メイン流
路、２９……スプール、３０……ポンプ流路、３
１……タンク流路、３５……チエツクポペツト、
３８……制御突部、３９，４４……絞り、４０…
…ピストン室、４１……ピストン。
Drawings 1 and 2 show the first embodiment of this invention, in which Fig. 1 is a sectional view, Fig. 2 is an enlarged sectional view of the main part, and Fig. 3 is an enlarged sectional view of the main part of the second embodiment. FIG. 4 is a sectional view of a conventional device. 21... Valve body, 22, 23... Main channel, 29... Spool, 30... Pump channel, 3
1... Tank flow path, 35... Check poppet,
38...Control protrusion, 39, 44...Aperture, 40...
...Piston chamber, 41... Piston.
Claims (1)
メイン流路をシリンダに接続し、しかも、このバ
ルブ本体に内装したスプールの切り換え方向に応
じて、いずれか一方のメイン流路をポンプ流路に
連通し、他方のメイン流路をタンク流路に連通し
、しかも、一方のメイン流路側にはチエツクポペ
ツトを備え、このチエツクポペツトに対向する側
にはピストン室を形成し、このピストン室には他
方のメイン流路側の圧力作用で移動するピストン
を内装するとともに、このピストンの移動力をチ
エツクポペツトに伝達して、当該チエツクポペツ
トを開弁するオペレートチエツク装置において、
上記チエツクポペツトの先端に制御突部を形成し
、当該制御突部とチエツクポペツトが圧接するシ
ート部とが相まつて絞りを構成したオペレートチ
エツク装置。 A pair of main passages are formed in the valve body, and these main passages are connected to the cylinder, and one of the main passages is connected to the pump passage depending on the switching direction of the spool built into the valve body. The other main flow path is connected to the tank flow path, and a check poppet is provided on one side of the main flow path, and a piston chamber is formed on the side opposite to the check poppet. An operating check device that includes a piston that moves under the action of pressure on the main flow path side and transmits the moving force of this piston to a check poppet to open the check poppet,
An operator check device, wherein a control protrusion is formed at the tip of the check poppet, and the control protrusion and the seat portion with which the check poppet comes into pressure contact together constitute a diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14399487U JPS6448402U (en) | 1987-09-21 | 1987-09-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14399487U JPS6448402U (en) | 1987-09-21 | 1987-09-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6448402U true JPS6448402U (en) | 1989-03-24 |
Family
ID=31411309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14399487U Pending JPS6448402U (en) | 1987-09-21 | 1987-09-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6448402U (en) |
-
1987
- 1987-09-21 JP JP14399487U patent/JPS6448402U/ja active Pending