JPS63125204U

JPS63125204U -

Info

Publication number: JPS63125204U
Application number: JP1739087U
Authority: JP
Priority date: 1987-02-09
Filing date: 1987-02-09
Publication date: 1988-08-16

Description

[Brief explanation of the drawing]

第１図ないし第４図は本考案のアクチユエータ
駆動装置の実施例を示し、第１図はスペーサの横
断面図、第２図は同上縦断面図、第３図は全体の
正面図、第４図は作動状態を示すシンボル図、第
５図は既提案の方向切換弁の動作説明図である。１１……スペーサ、１２……方向切換弁、２１
ａ，２１ｂ……駆動部、２２ａ，２２ｂ……入力
開口、２３ａ，２３ｂ……出力開口、２５……シ
ヤトル弁、２８ａ，２８ｂ……逆止弁、３０ａ，
３０ｂ……弁座、３１ａ，３１ｂ……ピストン、
３２ａ，３２ｂ……圧力室、３４ａ，３４ｂ……
入力口、３６……出力口、Ｐ……供給ポート、Ａ
，Ｂ……出力ポート、ＥＡ，ＥＢ……排出ポート
。 1 to 4 show an embodiment of the actuator drive device of the present invention, in which FIG. 1 is a cross-sectional view of a spacer, FIG. 2 is a longitudinal sectional view of the same, FIG. 3 is a front view of the whole, and FIG. The figure is a symbol diagram showing the operating state, and FIG. 5 is an explanatory diagram of the operation of the already proposed directional control valve. 11... Spacer, 12... Directional switching valve, 21
a, 21b...driver, 22a, 22b...input opening, 23a, 23b...output opening, 25...shuttle valve, 28a, 28b...check valve, 30a,
30b...valve seat, 31a, 31b...piston,
32a, 32b...pressure chamber, 34a, 34b...
Input port, 36... Output port, P... Supply port, A
, B...output port, EA, EB...exhaust port.

Claims

[Claims for Utility Model Registration] A system comprising a supply port, two output ports, and two discharge ports, two switching positions for communicating the supply port with one of the output ports and the other of the output ports with the discharge port, and both output ports. An actuator drive device comprising a three-position directional switching valve that can be switched between a three-position directional switching valve that communicates between a port and an intermediate position that communicates with the discharge port, and a spacer that is connected to the switching valve, the spacer communicating with the two output ports that communicates with the output port.
two input openings, two output openings that communicate with the actuator, a poppet-shaped check valve that closes a valve seat in a passage that communicates with these openings, a drive that opens and closes the check valve, and communicates with the input openings. a shuttle valve having an input port, and the drive unit includes a pressure chamber communicating with the output port of the shuttle valve, and a piston driven by pilot fluid pressure supplied to and discharged from the pressure chamber. Characteristic actuator drive device.