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
Application number
JP1987164810U
Other languages
Japanese (ja)
Other versions
JPH0738721Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1987164810U priority Critical patent/JPH0738721Y2/en
Publication of JPH0169902U publication Critical patent/JPH0169902U/ja
Priority to US07/499,031 priority patent/US5048395A/en
Application granted granted Critical
Publication of JPH0738721Y2 publication Critical patent/JPH0738721Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Forklifts And Lifting Vehicles (AREA)
  • Sliding Valves (AREA)
  • Fluid-Pressure Circuits (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

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)

【実用新案登録請求の範囲】[Scope of utility model registration request] 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
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.
JP1987164810U 1987-07-07 1987-10-28 Cylinder control device Expired - Lifetime JPH0738721Y2 (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008029443A1 (en) * 2006-09-04 2008-03-13 Shimadzu Corporation Fluid control valve

Cited By (4)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
JPH01171984U (en)
JPH0330105U (en)
JPH0169902U (en)
JPS6340603U (en)
JPH0196502U (en)
JPS6244106U (en)
JPH0393661U (en)
JPH0167303U (en)
JPH0479982U (en)
JPH0311185U (en)
JPH01132802U (en)
JPS5824501U (en) Hydraulic cylinder cushioning device
JPS6412906U (en)
JPH01173577U (en)
JPS63195105U (en)
JPS6212002U (en)
JPS61150672U (en)
JPS62180739U (en)
JPS63101304U (en)
JPS6234162U (en)
JPS61172203U (en)
JPS61204003U (en)
JPS6184033U (en)
JPH01103478U (en)
JPH01115880U (en)