JPS6412906U

JPS6412906U -

Info

Publication number: JPS6412906U
Application number: JP10416187U
Authority: JP
Priority date: 1987-07-07
Filing date: 1987-07-07
Publication date: 1989-01-24
Anticipated expiration: 2002-07-07
Also published as: JPH0747603Y2

Description

[Brief explanation of the drawing]

図面第１，２図はこの考案の実施例を示すもの
で、第１図は断面図、第２図は回路図、第３図は
従来装置の断面図である。１……スプール弁、１ａ……ポペツト、２……
シリンダポート、Ｓ……アクチユエータとしての
リフトシリンダ、１４……オペレートチエツク弁
、１４ａ……ポペツト、１８……オリフイス、２
１……キリ孔。 Figures 1 and 2 show an embodiment of this invention, where Figure 1 is a sectional view, Figure 2 is a circuit diagram, and Figure 3 is a sectional view of a conventional device. 1... Spool valve, 1a... Poppet, 2...
Cylinder port, S... Lift cylinder as actuator, 14... Operate check valve, 14a... Poppet, 18... Orifice, 2
1...Kill hole.

補正昭６２．８．１９実用新案登録請求の範囲を次のように補正する
。Amendment August 19, 1982 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設
けてなる制御装置において、オペレートチエツク
弁のポペツトに、このオペレートチエツク弁のパ
イロツト室に連通するオリフイスを形成し、この
パイロツト室をパイロツト通路に連通するととも
に、スプール弁にはキリ孔を形成し、このキリ孔
は、上記パイロツト通路に対してオーバラツプと
なる関係にし、しかも、このオーバラツプ量を長
くした戻り通路に連通する構成にしたシリンダの
制御装置。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
。[Scope of Claim for Utility Model Registration] In a control device that is provided with an operated check valve that only allows flow to the cylinder on the cylinder port side of a spool valve, the poppet of the operated check valve is connected to the pilot chamber of this operated check valve. A communicating orifice is formed to communicate the pilot chamber with the pilot passage, and a drilled hole is formed in the spool valve, and this bored hole overlaps the pilot passage, and the amount of overlap is A cylinder control device configured to communicate with a long return passage. 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設
けてなる制御装置において、オペレートチエツク
弁のポペツトに、このオペレートチエツク弁のパ
イロツト室に連通するオリフイスを形成し、この
パイロツト室をパイロツト通路に連通するととも
に、スプールにはキリ孔を形成し、このキリ孔は
、スプールが中立位置にあるとき閉状態を保ち、
スプールをストロークしたとき開くようにラツプ
させてなり、しかも、そのラツプ長を長くしたシ
リンダの制御装置。[Scope of Claim for Utility Model Registration] In a control device that is provided with an operated check valve that only allows flow to the cylinder on the cylinder port side of a spool valve, the poppet of the operated check valve is connected to the pilot chamber of this operated check valve. forming a communicating orifice to communicate the pilot chamber with the pilot passage; and forming a drill hole in the spool, which remains closed when the spool is in a neutral position;
A cylinder control device that wraps the spool so that it opens when it is stroked, and has a longer wrap length.

Claims

[Scope of utility model registration request]

In a control device that includes an operated check valve that only allows flow to the cylinder on the cylinder port side of a spool valve, an orifice that communicates with the pilot chamber of the operated check valve is formed in the poppet of the operated check valve. In addition to communicating the pilot chamber with the pilot passage, a through hole is formed in the spool valve, and this through hole overlaps with the pilot passage, and the length of this overlapping length is communicated with the return passage. A cylinder control device configured to