JPS5816477U

JPS5816477U - Pilot operated directional valve

Info

Publication number: JPS5816477U
Application number: JP11048581U
Authority: JP
Inventors: 裕二片山
Original assignee: 株式会社ナブコ
Priority date: 1981-07-24
Filing date: 1981-07-24
Publication date: 1983-02-01
Also published as: JPS6021590Y2

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

[Brief explanation of drawings]

第１図は、この考案による一実施例の断面図、第２図は
、第１図の要部拡大断面図である。１・・・圧力流体源、２：・・弁体、３・・・内孔、４
・・・操作部、５・・・スプール、６・・・方向切換弁
、７・・・端部、３５・・・ピストン、３６・・・内孔
、３７・・・供給通路、３８−・・排出通路、３９ａ、
３９ｂ−・・圧力室、４０ａ。４０ｂ・・・パイロット弁部、４１ａ、４１ｂ・・・電
磁石、４９ａ、　　４９ｂ−・・弁座、５３ａ、５３ｂ
−・・ポペット弁、６５ａ、　６５ｂ−・・弁、６７ａ
、　　６７ｂ−・・通孔、６６ａ、　　６６ｂ−・・下
端、６ｆｌａ、　　６８ｂ−・・弁部。冒６ＢｂFIG. 1 is a sectional view of one embodiment of this invention, and FIG. 2 is an enlarged sectional view of the main part of FIG. 1. 1... Pressure fluid source, 2:... Valve body, 3... Inner hole, 4
... Operating unit, 5... Spool, 6... Directional switching valve, 7... End, 35... Piston, 36... Inner hole, 37... Supply passage, 38-...・Discharge passage, 39a,
39b--Pressure chamber, 40a. 40b...Pilot valve part, 41a, 41b...Electromagnet, 49a, 49b-...Valve seat, 53a, 53b
---Poppet valve, 65a, 65b---Valve, 67a
, 67b--Through hole, 66a, 66b--Lower end, 6fla, 68b--Valve part. 6Bb

Claims

[Scope of utility model registration request]

A directional control valve including a valve body having an inner hole connecting a pressure fluid source, an actuator, and a tank, and a spool slidably fitted into the inner hole of the valve body, and a valve body of the directional control valve. A supply passage through which pilot pressure fluid is supplied, a discharge passage connected to the tank, an inner hole connected to one end of the pool into which a piston is slidably fitted, and an inner hole connected to the piston at the end thereof. having a pressure chamber formed;
A solenoid valve equipped with a poppet valve that opens and closes between the pressure chamber and the supply passage, and a flow of pressure fluid from the supply passage to the pressure chamber that occurs when the supply passage and the pressure chamber are connected by the operation of this solenoid valve. A pilot-operated directional control valve that connects an operating section with a valve that closes between a pressure chamber and a discharge passage.