JPS62190173U - - Google Patents
Info
- Publication number
- JPS62190173U JPS62190173U JP7842686U JP7842686U JPS62190173U JP S62190173 U JPS62190173 U JP S62190173U JP 7842686 U JP7842686 U JP 7842686U JP 7842686 U JP7842686 U JP 7842686U JP S62190173 U JPS62190173 U JP S62190173U
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- plunger
- spool
- pilot
- action
- 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
Landscapes
- Multiple-Way Valves (AREA)
Description
図面はこの考案の実施例を示すもので、第１図
は第１実施例の要部断面図、第２図は第２実施例
の要部断面図、第３図は従来の方向制御弁の断面
図である。
１……弁本体、７……スプール、Ｔ……タンク
、１９……タンク通路、２１……作用室、２２…
…パイロツト室、２６……プランジヤ、２８……
ノツチ。
The drawings show embodiments of this invention; Fig. 1 is a sectional view of the main part of the first embodiment, Fig. 2 is a sectional view of the main part of the second embodiment, and Fig. 3 is a sectional view of the main part of the conventional directional control valve. FIG. 1... Valve body, 7... Spool, T... Tank, 19... Tank passage, 21... Action chamber, 22...
...Pilot chamber, 26...Plunger, 28...
Notsuchi.
Claims (1)
のスプールをパイロツト圧の作用で切換える方向
制御弁において、上記スプール両端を、上記弁本
体に形成のタンク通路に連通させた作用室に臨ま
せる一方、この作用室に隣接してパイロツト室を
設けるとともに、摺動自在にしたプランジヤの一
端をパイロツト室に臨ませ、他端を作用室に臨ま
せ、しかも、プランジヤの直径をスプールの直径
よりも小さくしてなり、パイロツト室のパイロツ
ト圧の作用でプランジヤが移動してスプールを押
す構成にした方向制御弁。 (2) プランジヤの周囲にスリツトを形成し、当
該プランジヤが作用室からパイロツト室に向かつ
て移動したとき、上記スリツトを介して作用室と
パイロツト室とを連通させる前記実用新案登録請
求の範囲第１項記載の方向制御弁。[Claims for Utility Model Registration] (1) In a directional control valve in which a spool is installed in the valve body and the spool is switched by the action of pilot pressure, both ends of the spool are communicated with a tank passage formed in the valve body. At the same time, a pilot chamber is provided adjacent to this operation chamber, and one end of the slidable plunger faces the pilot chamber, and the other end faces the operation chamber, and the diameter of the plunger is A directional control valve in which the diameter of the plunger is smaller than the diameter of the spool, and the plunger moves to push the spool under the action of the pilot pressure in the pilot chamber. (2) A slit is formed around the plunger, and when the plunger moves from the action chamber toward the pilot chamber, the action chamber and the pilot chamber are communicated through the slit. Directional control valve as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7842686U JPS62190173U (en) | 1986-05-24 | 1986-05-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7842686U JPS62190173U (en) | 1986-05-24 | 1986-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62190173U true JPS62190173U (en) | 1987-12-03 |
Family
ID=30927360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7842686U Pending JPS62190173U (en) | 1986-05-24 | 1986-05-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62190173U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5097781A (en) * | 1974-01-07 | 1975-08-04 | ||
| JPS5146677A (en) * | 1974-10-17 | 1976-04-21 | Hitachi Construction Machinery | YUATSUHOKOKIRIKAEBENSOCHI |
| JPS529123A (en) * | 1975-07-09 | 1977-01-24 | Caterpillar Tractor Co | Pressure control pilot actuating control valve with safety device |
-
1986
- 1986-05-24 JP JP7842686U patent/JPS62190173U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5097781A (en) * | 1974-01-07 | 1975-08-04 | ||
| JPS5146677A (en) * | 1974-10-17 | 1976-04-21 | Hitachi Construction Machinery | YUATSUHOKOKIRIKAEBENSOCHI |
| JPS529123A (en) * | 1975-07-09 | 1977-01-24 | Caterpillar Tractor Co | Pressure control pilot actuating control valve with safety device |