JPS6391702U - - Google Patents
Info
- Publication number
- JPS6391702U JPS6391702U JP18658186U JP18658186U JPS6391702U JP S6391702 U JPS6391702 U JP S6391702U JP 18658186 U JP18658186 U JP 18658186U JP 18658186 U JP18658186 U JP 18658186U JP S6391702 U JPS6391702 U JP S6391702U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- pump
- chamber
- communicated
- cylinders
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
- Lifting Devices For Agricultural Implements (AREA)
Description
図面第１図はこの考案の実施例を示す回路図、
第２図は従来の回路図である。
Ｐ……ポンプ、Ｖ……切換弁、Ｓ１……第１シ
リンダ、Ｓ２……第２シリンダ、１３，１４……
ボトム側室、１５，１６……ロツド側室、１７…
…連通路。
Figure 1 is a circuit diagram showing an embodiment of this invention;
FIG. 2 is a conventional circuit diagram. P...Pump, V...Switching valve, S1 ...First cylinder, S2 ...Second cylinder, 13, 14...
Bottom side chamber, 15, 16... Rod side chamber, 17...
...Connection path.
Claims (1)
ダを設け、第１、２シリンダの一方の室を連通路
を介して直接連通させるとともに、この連通路を
、正転方向と逆転方向とに回転可能にしたポンプ
に接続し、また、これら第１、２シリンダの他方
の室を、切換弁を介してポンプに接続するととも
に、この切換弁は、その切り換え位置に応じて、
第１シリンダの他方の室を上記ポンプに連通させ
、第２シリンダの他方の室とポンプとの連通を遮
断したり、第２シリンダの他方の室とポンプとを
連通させ、第１シリンダの他方の室とポンプとの
連通を遮断したりする構成にしたシリンダの制御
装置。 Two cylinders, a first cylinder and a second cylinder, are provided, and one of the chambers of the first and second cylinders is directly communicated via a communication passage, and this communication passage can be rotated in the forward rotation direction and the reverse rotation direction. The other chambers of these first and second cylinders are connected to the pump via a switching valve, and this switching valve has a
The other chamber of the first cylinder may be communicated with the pump and the communication between the other chamber of the second cylinder and the pump may be cut off, or the other chamber of the second cylinder may be communicated with the pump and the other chamber of the first cylinder may be communicated with the pump. A cylinder control device configured to cut off communication between the chamber and the pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18658186U JPS6391702U (en) | 1986-12-03 | 1986-12-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18658186U JPS6391702U (en) | 1986-12-03 | 1986-12-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6391702U true JPS6391702U (en) | 1988-06-14 |
Family
ID=31136264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18658186U Pending JPS6391702U (en) | 1986-12-03 | 1986-12-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6391702U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55115606A (en) * | 1979-02-26 | 1980-09-05 | Hitachi Constr Mach Co Ltd | Closed hydraulic circuit for controlling operation of pump |
| JPS5659006A (en) * | 1979-10-19 | 1981-05-22 | Hitachi Constr Mach Co Ltd | Controlling method of hydraulic circuit for controlling pump |
-
1986
- 1986-12-03 JP JP18658186U patent/JPS6391702U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55115606A (en) * | 1979-02-26 | 1980-09-05 | Hitachi Constr Mach Co Ltd | Closed hydraulic circuit for controlling operation of pump |
| JPS5659006A (en) * | 1979-10-19 | 1981-05-22 | Hitachi Constr Mach Co Ltd | Controlling method of hydraulic circuit for controlling pump |