JPS6273102U - - Google Patents
Info
- Publication number
- JPS6273102U JPS6273102U JP16465485U JP16465485U JPS6273102U JP S6273102 U JPS6273102 U JP S6273102U JP 16465485 U JP16465485 U JP 16465485U JP 16465485 U JP16465485 U JP 16465485U JP S6273102 U JPS6273102 U JP S6273102U
- Authority
- JP
- Japan
- Prior art keywords
- spool
- control valve
- vent control
- chamber
- vent
- 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
- 238000010586 diagram Methods 0.000 description 3
Description
第１図はこの考案の一実施例の回路図、第２図
はこの考案のベントコントロール弁の断面図、第
３図、第４図は夫々変形例の回路図、第５図は従
来例の断面図である。
２３…バランスドピストン形のリリーフ弁、２
５…ベントコントロール弁、２６，７６…開閉弁
、３１…本体、３３…スプール、３３―１…スプ
ール本体部、３３―２…ピストン部、４１…バネ
室、４６…バネ、５１…ダンパー室、５３…絞り
、６１…パイロツト室。
Fig. 1 is a circuit diagram of an embodiment of this invention, Fig. 2 is a sectional view of a vent control valve of this invention, Figs. 3 and 4 are circuit diagrams of modified examples, and Fig. 5 is a circuit diagram of a conventional example. FIG. 23...Balanced piston type relief valve, 2
5...Vent control valve, 26, 76...Opening/closing valve, 31...Main body, 33...Spool, 33-1...Spool body part, 33-2...Piston part, 41...Spring chamber, 46...Spring, 51...Damper chamber, 53...Aperture, 61...Pilot chamber.
Claims (1)
記リリーフ弁２３のベントポートに入口が接続さ
れたベントコントロール弁２５と、上記ベントコ
ントロール弁２５の出口に入口が接続された開閉
弁２６，２７とを備えた圧抜き回路であつて、 上記ベントコントロール弁２５は、スプール３
３の一端側にバネ４６を縮装しタンクに通じるバ
ネ室４１を備えると共に、上記スプール３３の他
端に出口に接続したパイロツト室６１を備え、さ
らに、上記スプール３３のバネ室４１側の端部に
スプール本体部３３―１よりも大径のピストン部
３３―２を形成すると共に、上記ピストン部３３
―２の段部３３―２ａによりダンパー室５１を形
成し、上記ダンパー室５１とバネ室４１とを絞り
５３を介して連通させたことを特徴とする圧抜き
回路。[Claims for Utility Model Registration] A balanced piston type relief valve 23, a vent control valve 25 whose inlet is connected to the vent port of the relief valve 23, and an inlet connected to the outlet of the vent control valve 25. The vent control valve 25 is a pressure relief circuit equipped with on-off valves 26 and 27, and the vent control valve 25 is connected to the spool 3.
A spring chamber 41 is provided at one end of the spool 33 and connected to the tank, and the other end of the spool 33 is provided with a pilot chamber 61 connected to the outlet. A piston portion 33-2 having a larger diameter than the spool main body portion 33-1 is formed in the piston portion 33-1.
A pressure relief circuit characterized in that a damper chamber 51 is formed by the stepped portion 33-2a of step 33-2, and the damper chamber 51 and the spring chamber 41 are communicated through a throttle 53.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985164654U JPH0412241Y2 (en) | 1985-10-25 | 1985-10-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985164654U JPH0412241Y2 (en) | 1985-10-25 | 1985-10-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6273102U true JPS6273102U (en) | 1987-05-11 |
| JPH0412241Y2 JPH0412241Y2 (en) | 1992-03-25 |
Family
ID=31093970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985164654U Expired JPH0412241Y2 (en) | 1985-10-25 | 1985-10-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0412241Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8913321B2 (en) | 2010-09-21 | 2014-12-16 | Moxtek, Inc. | Fine pitch grid polarizer |
| US8913320B2 (en) | 2011-05-17 | 2014-12-16 | Moxtek, Inc. | Wire grid polarizer with bordered sections |
| US8873144B2 (en) | 2011-05-17 | 2014-10-28 | Moxtek, Inc. | Wire grid polarizer with multiple functionality sections |
| US8922890B2 (en) | 2012-03-21 | 2014-12-30 | Moxtek, Inc. | Polarizer edge rib modification |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49112082A (en) * | 1973-02-28 | 1974-10-25 | ||
| JPS5016508U (en) * | 1973-06-11 | 1975-02-21 | ||
| JPS57116985A (en) * | 1981-01-12 | 1982-07-21 | Uchida Yuatsu Kiki Kogyo Kk | Control valve device of discharge pressure |
-
1985
- 1985-10-25 JP JP1985164654U patent/JPH0412241Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49112082A (en) * | 1973-02-28 | 1974-10-25 | ||
| JPS5016508U (en) * | 1973-06-11 | 1975-02-21 | ||
| JPS57116985A (en) * | 1981-01-12 | 1982-07-21 | Uchida Yuatsu Kiki Kogyo Kk | Control valve device of discharge pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0412241Y2 (en) | 1992-03-25 |