JPS59101065U - counter balance valve - Google Patents

counter balance valve

Info

Publication number
JPS59101065U
JPS59101065U JP19734482U JP19734482U JPS59101065U JP S59101065 U JPS59101065 U JP S59101065U JP 19734482 U JP19734482 U JP 19734482U JP 19734482 U JP19734482 U JP 19734482U JP S59101065 U JPS59101065 U JP S59101065U
Authority
JP
Japan
Prior art keywords
spool
pilot
piston
virofft
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
Application number
JP19734482U
Other languages
Japanese (ja)
Inventor
「よし」田 利広
Original Assignee
カヤバ工業株式会社
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 by カヤバ工業株式会社 filed Critical カヤバ工業株式会社
Priority to JP19734482U priority Critical patent/JPS59101065U/en
Publication of JPS59101065U publication Critical patent/JPS59101065U/en
Pending legal-status Critical Current

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  • Safety Valves (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

図面第1図は従来の断面図、第2図はこの考案の実施例
を示す断面図、第3図は他の実施例とし  ゛ての方向
切換弁の記号図である。 14゜46・・・方向切換弁、19・・・スプール、2
1・・・圧力室、22・・・パイロットピストン、29
  −・・・制御絞り部、32・・・パイロットチェッ
ク、39・・・パイロット室、40・・・パイロット操
作シリンダ。
Figure 1 is a sectional view of a conventional valve, Figure 2 is a sectional view showing an embodiment of this invention, and Figure 3 is a symbolic diagram of a directional control valve as another embodiment. 14゜46... Directional switching valve, 19... Spool, 2
1... Pressure chamber, 22... Pilot piston, 29
-...Control throttle section, 32...Pilot check, 39...Pilot chamber, 40...Pilot operation cylinder.

Claims (1)

【実用新案登録請求の範囲】 カラターフロ一時にスプールに形成の制御絞り部が開口
し、その制御絞り部の開度に応じてカウンターフローに
絞り抵抗を付与するカウンターバランス弁において、カ
ウンターフロー制御をすべく方向切換弁を切換えたとき
、その方向切換弁、と連動して動作し、パイ【1ツト室
にパイロット圧を供給するパイロット操作ノリンダと、
このパイロット圧に応じて移動し、上記スプールを押す
バイロフトピストンと、上記スプール内に設け、パイロ
ットピストンがスプールを押す以前にそのパイロットピ
ストンの移動にともな−って開弁シ、バイロフトピスト
ンと反対側に設けた圧力室をタンクに連通させるパイロ
ットチェックとを備えたカウンターバラス弁。
[Scope of Claim for Utility Model Registration] A counterbalance valve in which a control constriction formed in a spool opens at the same time as a spool, and applies constriction resistance to the counterflow according to the opening degree of the control constriction, which performs all counterflow control. When the directional switching valve is switched, a pilot-operated norinda that operates in conjunction with the directional switching valve and supplies pilot pressure to the pipe chamber,
A virofft piston that moves in response to this pilot pressure and pushes the spool, and a virofft piston that is provided within the spool and opens a valve as the pilot piston moves before the pilot piston pushes the spool, opposite to the virofft piston. A counterbalance valve equipped with a pilot check that connects the pressure chamber on the side to the tank.
JP19734482U 1982-12-27 1982-12-27 counter balance valve Pending JPS59101065U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19734482U JPS59101065U (en) 1982-12-27 1982-12-27 counter balance valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19734482U JPS59101065U (en) 1982-12-27 1982-12-27 counter balance valve

Publications (1)

Publication Number Publication Date
JPS59101065U true JPS59101065U (en) 1984-07-07

Family

ID=30422680

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19734482U Pending JPS59101065U (en) 1982-12-27 1982-12-27 counter balance valve

Country Status (1)

Country Link
JP (1) JPS59101065U (en)

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