JPS6443201U - - Google Patents
Info
- Publication number
- JPS6443201U JPS6443201U JP13864087U JP13864087U JPS6443201U JP S6443201 U JPS6443201 U JP S6443201U JP 13864087 U JP13864087 U JP 13864087U JP 13864087 U JP13864087 U JP 13864087U JP S6443201 U JPS6443201 U JP S6443201U
- Authority
- JP
- Japan
- Prior art keywords
- piston chamber
- actuator
- valve body
- actuator ports
- ports
- 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図はこの考案の実施例を示す断面図、
第２図は従来の装置を示す断面図である。
１……バルブ本体、２，３……アクチユエータ
ポート、Ｓ……チルトシリンダ、７……スプール
、８……ポンプ通路、９……タンク通路、１４…
…チエツクポペツト、１６……ピストン室、１７
……ピストン、１８……プツシユロツド、２３…
…ドレン通路。
Figure 1 is a sectional view showing an embodiment of this invention;
FIG. 2 is a sectional view showing a conventional device. 1... Valve body, 2, 3... Actuator port, S... Tilt cylinder, 7... Spool, 8... Pump passage, 9... Tank passage, 14...
...Check poppet, 16...Piston chamber, 17
...Piston, 18...Push rod, 23...
...Drain passage.
Claims (1)
成し、このアクチユエータポートをシリンダに接
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、いずれか一方のアク
チユエータポートをポンプ通路に連通し、他方の
アクチユエータポートをタンク通路に連通し、し
かも、一方のアクチユエータポート側にはチエツ
クポペツトを備え、このチエツクポペツトを備え
たアクチユエータポート側の戻り流量を、スプー
ルの切り換え量に応じて制御し、かつ、バルブ本
体側にはピストン室を形成し、このピストン室に
は他方のアクチユエータポート側の圧力作用で移
動するピストンを内装するとともに、このピスト
ンとチエツクポペツトとの間に、プツシユロツド
を摺動自在に介在させてなるオペレートチエツク
装置において、上記ピストン室であつて、パイロ
ツト圧作用面とは反対側にドレン通路を連通した
オペレートチエツク装置。 A pair of actuator ports are formed in the valve body, and these actuator ports are connected to the cylinder, and either one of the actuator ports is connected to the pump depending on the switching direction of the spool built into the valve body. The other actuator port is connected to the tank passage, and one of the actuator ports is equipped with a check poppet, and the return flow rate from the actuator port equipped with the check poppet is connected to the spool. The switching amount is controlled according to the switching amount, and a piston chamber is formed on the valve body side, and this piston chamber houses a piston that moves under the action of pressure on the other actuator port side. An operator check device comprising a push rod slidably interposed between the piston chamber and the piston chamber, wherein a drain passage communicates with the side of the piston chamber opposite to the pilot pressure acting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13864087U JPS6443201U (en) | 1987-09-10 | 1987-09-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13864087U JPS6443201U (en) | 1987-09-10 | 1987-09-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6443201U true JPS6443201U (en) | 1989-03-15 |
Family
ID=31401161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13864087U Pending JPS6443201U (en) | 1987-09-10 | 1987-09-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6443201U (en) |
-
1987
- 1987-09-10 JP JP13864087U patent/JPS6443201U/ja active Pending