JPH0169902U - - Google Patents
Info
- Publication number
- JPH0169902U JPH0169902U JP1987164810U JP16481087U JPH0169902U JP H0169902 U JPH0169902 U JP H0169902U JP 1987164810 U JP1987164810 U JP 1987164810U JP 16481087 U JP16481087 U JP 16481087U JP H0169902 U JPH0169902 U JP H0169902U
- Authority
- JP
- Japan
- Prior art keywords
- flow path
- cylinder
- spool
- check valve
- control device
- 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 1
Landscapes
- Forklifts And Lifting Vehicles (AREA)
- Sliding Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Description
図面第１図はこの考案の実施例を示す断面図、
第２，３図は従来装置を示すもので、第２図は断
面図、第３図は回路図である。
Ｓ……リフトシリンダ、１……スプール弁、１
ａ……スプール、２……シリンダポート、７……
戻り通路、８……オペレートチエツク弁、８ａ…
…ポペツト、９……パイロツト室、１４……パイ
ロツトポート、１５……第１流路、１８……バツ
クアツプ孔。
Figure 1 is a sectional view showing an embodiment of this invention;
2 and 3 show a conventional device, with FIG. 2 being a sectional view and FIG. 3 being a circuit diagram. S...Lift cylinder, 1...Spool valve, 1
a... Spool, 2... Cylinder port, 7...
Return passage, 8... Operate check valve, 8a...
...Poppet, 9...Pilot chamber, 14...Pilot port, 15...First channel, 18...Backup hole.
補正 昭６３．６．２８
実用新案登録請求の範囲を次のように補正する
。Amendment June 28, 1983 The scope of claims for utility model registration is amended as follows.
【実用新案登録請求の範囲】
スプール弁のシリンダポート側に、シリンダへ
の流通のみを許容するオペレートチエツク弁を内
装し、上記オペレートチエツク弁のパイロツト室
から戻り通路へ連通させる流路を、スプールに設
けてなる制御装置において、上記流路に連通する
補助流出孔を形成して、パイロツト室に連通する
パイロツトポートに対する上記流路の有効ラツプ
長を長く構成してなるシリンダ制御装置。
図面の簡単な説明を次のように補正する。
明細書第１０頁第８行の「バツクアツプ孔」と
あるのを「補助流出孔」と補正する。[Scope of Claim for Utility Model Registration] An operated check valve that allows flow only to the cylinder is installed on the cylinder port side of the spool valve, and a flow path communicating from the pilot chamber of the operated check valve to the return passage is provided on the spool. In the cylinder control device provided, an auxiliary outflow hole communicating with the flow path is formed to increase the effective wrap length of the flow path with respect to a pilot port communicating with a pilot chamber. The brief description of the drawing has been amended as follows. The phrase "backup hole" in line 8 of page 10 of the specification is corrected to read "auxiliary outflow hole."
Claims (1)
の流通のみを許容するオペレートチエツク弁を内
装し、上記オペレートチエツク弁のパイロツト室
から戻り通路へ連通させる流路を、スプールに設
けてなる制御装置において、上記流路に連通する
バツクアツプ孔を形成して、パイロツト室に連通
するパイロツトポートに対する上記流路の有効ラ
ツプ量を大きく構成してなるシリンダ制御装置。 In the control device, the spool valve is equipped with an operated check valve that only allows flow to the cylinder on the cylinder port side, and the spool is provided with a flow path that communicates from the pilot chamber of the operated check valve to the return passage. A cylinder control device in which a backup hole communicating with a flow path is formed to increase the effective wrap amount of the flow path with respect to a pilot port communicating with a pilot chamber.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987164810U JPH0738721Y2 (en) | 1987-10-28 | 1987-10-28 | Cylinder control device |
| US07/499,031 US5048395A (en) | 1987-07-07 | 1990-03-26 | Control device for cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987164810U JPH0738721Y2 (en) | 1987-10-28 | 1987-10-28 | Cylinder control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0169902U true JPH0169902U (en) | 1989-05-10 |
| JPH0738721Y2 JPH0738721Y2 (en) | 1995-09-06 |
Family
ID=31450733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987164810U Expired - Lifetime JPH0738721Y2 (en) | 1987-07-07 | 1987-10-28 | Cylinder control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0738721Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008029443A1 (en) * | 2006-09-04 | 2008-03-13 | Shimadzu Corporation | Fluid control valve |
-
1987
- 1987-10-28 JP JP1987164810U patent/JPH0738721Y2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008029443A1 (en) * | 2006-09-04 | 2008-03-13 | Shimadzu Corporation | Fluid control valve |
| JPWO2008029443A1 (en) * | 2006-09-04 | 2010-01-21 | 株式会社島津製作所 | Fluid control valve |
| JP4973662B2 (en) * | 2006-09-04 | 2012-07-11 | 株式会社島津製作所 | Fluid control valve |
| US8714195B2 (en) | 2006-09-04 | 2014-05-06 | Shimadzu Corporation | Fluid control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0738721Y2 (en) | 1995-09-06 |