JPH0160002U - - Google Patents
Info
- Publication number
- JPH0160002U JPH0160002U JP15582487U JP15582487U JPH0160002U JP H0160002 U JPH0160002 U JP H0160002U JP 15582487 U JP15582487 U JP 15582487U JP 15582487 U JP15582487 U JP 15582487U JP H0160002 U JPH0160002 U JP H0160002U
- Authority
- JP
- Japan
- Prior art keywords
- engine
- solenoid valve
- hydraulic circuit
- cylinder
- check valve
- 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
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000008602 contraction Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の一実施例を示す回路図、第２
図は複数シリンダ同調回路に本考案を適用した別
の実施例を示す回路図、第３図は従来の油圧回路
図である。
１０，３０……油圧回路、１１，３１……エン
ジン、１２，３２……油圧ポンプ、１３，３３…
…シリンダ、１４，３４……シリンダ伸縮切換用
電磁弁、１５，３７……管路、１６，４０……カ
ツプリング、１７，３８……パイロツトチエツク
バルブ、２０，４２……圧抜き管路、２２，４５
……電磁弁、２５，４８……オイルプレツシヤス
イツチ。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a circuit diagram showing another embodiment in which the present invention is applied to a multi-cylinder tuning circuit, and FIG. 3 is a conventional hydraulic circuit diagram. 10,30...Hydraulic circuit, 11,31...Engine, 12,32...Hydraulic pump, 13,33...
...Cylinder, 14, 34... Solenoid valve for cylinder telescopic switching, 15, 37... Pipe line, 16, 40... Coupling, 17, 38... Pilot check valve, 20, 42... Pressure release pipe line, 22 ,45
... Solenoid valve, 25, 48 ... Oil pressure switch.
Claims (1)
ンダと該シリンダの伸縮切換用電磁弁との間に、
カツプリングとパイロツトチエツクバルブを有す
る油圧回路において、前記カツプリングとパイロ
ツトチエツクバルブとを結ぶ管路から圧抜き用管
路を分岐するとともに、該圧抜き用管路に前記エ
ンジンのオイルプレツシヤスイツチに連動して作
動する電磁弁を設けたことを特徴とする油圧回路
。 Between a cylinder operated by an engine-driven hydraulic pump and a solenoid valve for switching expansion and contraction of the cylinder,
In a hydraulic circuit having a coupling ring and a pilot check valve, a pressure relief pipe is branched from a pipe connecting the coupling and the pilot check valve, and the pressure relief pipe is connected to an oil pressure switch of the engine. A hydraulic circuit characterized by being provided with a solenoid valve that operates by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15582487U JPH0160002U (en) | 1987-10-12 | 1987-10-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15582487U JPH0160002U (en) | 1987-10-12 | 1987-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0160002U true JPH0160002U (en) | 1989-04-17 |
Family
ID=31433797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15582487U Pending JPH0160002U (en) | 1987-10-12 | 1987-10-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0160002U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017187144A (en) * | 2016-04-08 | 2017-10-12 | 株式会社竹内製作所 | Working machine |
-
1987
- 1987-10-12 JP JP15582487U patent/JPH0160002U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017187144A (en) * | 2016-04-08 | 2017-10-12 | 株式会社竹内製作所 | Working machine |