JPS58109603U - Hydraulic pilot type switching valve device - Google Patents

Hydraulic pilot type switching valve device

Info

Publication number
JPS58109603U
JPS58109603U JP664082U JP664082U JPS58109603U JP S58109603 U JPS58109603 U JP S58109603U JP 664082 U JP664082 U JP 664082U JP 664082 U JP664082 U JP 664082U JP S58109603 U JPS58109603 U JP S58109603U
Authority
JP
Japan
Prior art keywords
switching valve
type switching
valve device
hydraulic pilot
pilot type
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
JP664082U
Other languages
Japanese (ja)
Inventor
貞緒 鈴木
Original Assignee
株式会社クボタ
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 株式会社クボタ filed Critical 株式会社クボタ
Priority to JP664082U priority Critical patent/JPS58109603U/en
Publication of JPS58109603U publication Critical patent/JPS58109603U/en
Pending legal-status Critical Current

Links

Landscapes

  • Lifting Devices For Agricultural Implements (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) [Abstract] 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]

第１図は従来例を示す油圧回路図、第２図は本考案の一
実施例を示す全体の断面図、第３図は同油圧ポンプの断
面図、第４図Ａ、　Ｂ、　Ｃは同芯合せ用ピンを示す図
、第５図弁本体部の断面図、第６図Ａ、　Ｂは作用説明
図である。 １２・・・油圧ポンプ、１３・・・弁本体、２５・・・
切換弁、２６・・・チェック弁、２７・・・パイロット
ピスト７．２９・・・スプール、３６・・・パイロット
ピストン孔、３９・・・リターンポート。 ２４　　　　　　　　ｊＵ 第２図 ′ごニンFig. 1 is a hydraulic circuit diagram showing a conventional example, Fig. 2 is an overall sectional view showing an embodiment of the present invention, Fig. 3 is a sectional view of the same hydraulic pump, and Fig. 4 A, B, and C are the same. FIG. 5 is a cross-sectional view of the valve main body, and FIGS. 6A and 6B are diagrams illustrating the operation. 12... Hydraulic pump, 13... Valve body, 25...
Switching valve, 26...Check valve, 27...Pilot piston 7.29...Spool, 36...Pilot piston hole, 39...Return port. 24 jU Figure 2'Gonin

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 切換弁に連動してパイロット圧によりパイロットピスト
ンが作動し、該パイロットピストンでチェック弁を開放
するようにした油圧パイロット式切換弁において、パイ
ロット回路に、チェック弁の開放後に油をタンクへ戻す
ためのリターンポートを設けたことを特徴とする油圧パ
イロット式切換弁装置。In a hydraulic pilot type switching valve, in which a pilot piston is actuated by pilot pressure in conjunction with the switching valve, and the pilot piston opens a check valve, the pilot circuit has a function for returning oil to the tank after opening the check valve. A hydraulic pilot type switching valve device characterized by having a return port.
JP664082U 1982-01-20 1982-01-20 Hydraulic pilot type switching valve device Pending JPS58109603U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP664082U JPS58109603U (en) 1982-01-20 1982-01-20 Hydraulic pilot type switching valve device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP664082U JPS58109603U (en) 1982-01-20 1982-01-20 Hydraulic pilot type switching valve device

Publications (1)

Publication Number Publication Date
JPS58109603U true JPS58109603U (en) 1983-07-26

Family

ID=30019425

Family Applications (1)

Application Number Title Priority Date Filing Date
JP664082U Pending JPS58109603U (en) 1982-01-20 1982-01-20 Hydraulic pilot type switching valve device

Country Status (1)

Country Link
JP (1) JPS58109603U (en)

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