JPS6424702U - - Google Patents
Info
- Publication number
- JPS6424702U JPS6424702U JP11911387U JP11911387U JPS6424702U JP S6424702 U JPS6424702 U JP S6424702U JP 11911387 U JP11911387 U JP 11911387U JP 11911387 U JP11911387 U JP 11911387U JP S6424702 U JPS6424702 U JP S6424702U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- type switching
- switching valve
- pilot type
- spring 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
- 230000007935 neutral effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
Landscapes
- Safety Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図は本考案の実施例の油圧回路図、第２図
は従来装置の油圧回路図である。
１……液圧源（液圧ポンプ）、３……作動シリ
ンダ、４，５……液室、７……パイロツト式切換
弁、１１，１２……流路、１４……ロジツク弁、
１５……ばね室、１６……２次側ポート、１７…
…スプリングセツトパイロツト式切換弁、１８…
…パイロツト通路、１９……絞り、２２……リリ
ーフ弁。
FIG. 1 is a hydraulic circuit diagram of an embodiment of the present invention, and FIG. 2 is a hydraulic circuit diagram of a conventional device. DESCRIPTION OF SYMBOLS 1...Liquid pressure source (hydraulic pump), 3...Working cylinder, 4, 5...Liquid chamber, 7...Pilot type switching valve, 11, 12...Flow path, 14...Logic valve,
15...Spring chamber, 16...Secondary side port, 17...
...Spring set pilot type switching valve, 18...
...Pilot passage, 19...throttle, 22...relief valve.
Claims (1)
式切換弁を介して接続し、作動シリンダの一方の
液室とパイロツト式切換弁とをつなぐ流路にロジ
ツク弁を配設すると共に、このロジツク弁のばね
室を、パイロツト式切換弁の機能位置から中立位
置への切換わりと共にタンクに中立位置から機能
位置への切換わりと共にロジツク弁の２次側ポー
トに接続するスプリングセツトパイロツト式切換
弁を備えた作動シリンダ液圧回路において、前記
スプリングセツトパイロツト式切換弁とロジツク
弁のばね室とをつなぐパイロツト通路に絞りを設
け、この絞りの下流にリリーフ弁を配設したこと
を特徴とする作動シリンダ制御装置。 The fluid pressure source and both fluid chambers of the working cylinder are connected via a pilot type switching valve, and a logic valve is disposed in the flow path connecting one of the fluid chambers of the working cylinder and the pilot type switching valve. The spring chamber of the valve is connected to the tank when the pilot type switching valve switches from the functional position to the neutral position, and the spring chamber is connected to the secondary side port of the logic valve when the pilot type switching valve switches from the neutral position to the functional position. An operating cylinder hydraulic circuit comprising: a throttle in a pilot passage connecting the spring set pilot type switching valve and a spring chamber of a logic valve; and a relief valve disposed downstream of the throttle. Control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987119113U JPH0520885Y2 (en) | 1987-08-03 | 1987-08-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987119113U JPH0520885Y2 (en) | 1987-08-03 | 1987-08-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6424702U true JPS6424702U (en) | 1989-02-10 |
| JPH0520885Y2 JPH0520885Y2 (en) | 1993-05-28 |
Family
ID=31364061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987119113U Expired - Lifetime JPH0520885Y2 (en) | 1987-08-03 | 1987-08-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0520885Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5746103U (en) * | 1980-09-01 | 1982-03-13 | ||
| JPS585502A (en) * | 1981-06-29 | 1983-01-12 | Uchida Yuatsu Kiki Kogyo Kk | Control circuit of elevating cylinder |
| JPS6169504U (en) * | 1984-10-11 | 1986-05-13 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5315037A (en) * | 1976-07-27 | 1978-02-10 | Mitsubishi Electric Corp | Sine wave function generator |
-
1987
- 1987-08-03 JP JP1987119113U patent/JPH0520885Y2/ja not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5746103U (en) * | 1980-09-01 | 1982-03-13 | ||
| JPS585502A (en) * | 1981-06-29 | 1983-01-12 | Uchida Yuatsu Kiki Kogyo Kk | Control circuit of elevating cylinder |
| JPS6169504U (en) * | 1984-10-11 | 1986-05-13 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0520885Y2 (en) | 1993-05-28 |