JPS62172878U

JPS62172878U -

Info

Publication number: JPS62172878U
Application number: JP6068086U
Authority: JP
Priority date: 1986-04-22
Filing date: 1986-04-22
Publication date: 1987-11-02

Description

[Brief explanation of the drawing]

第１図および第２図は本考案の実施例を示し、
第１図はパイロツト弁の縦断面図、第２図は第１
図中の操作杆を示す正面図、第３図は前記実施例
の変形例を示す第２図と同様の正面図、第４図は
従来技術によるパイロツト弁を示す縦断面図であ
る。１……ケーシング、３，３′……ポンプポート
、５……タンクポート、７，７′……出力ポート
、１３，１３′……ブツシング、３０，３０′…
…スプール、３０Ｃ，３０Ｃ′……頭部、３１，
３１′……プツシヤ、３１Ｂ，３１Ｂ′……凹溝
、３１Ｃ，３１Ｃ′……環状突部、３２，３２′
……ピン、３３……操作杆、３６，３６′，４１
，４１′……係合穴。 1 and 2 show an embodiment of the present invention,
Figure 1 is a vertical cross-sectional view of the pilot valve, Figure 2 is a vertical cross-sectional view of the pilot valve.
FIG. 3 is a front view similar to FIG. 2 showing a modification of the above embodiment, and FIG. 4 is a longitudinal sectional view showing a pilot valve according to the prior art. 1... Casing, 3, 3'... Pump port, 5... Tank port, 7, 7'... Output port, 13, 13'... Bushing, 30, 30'...
...Spool, 30C, 30C'...Head, 31,
31'... Pusher, 31B, 31B'... Concave groove, 31C, 31C'... Annular protrusion, 32, 32'
...Pin, 33...Operation rod, 36, 36', 41
, 41'...Engagement hole.

Claims

[Scope of utility model registration request]

A casing having a pump port, a tank port, and an output port, a plurality of spools that are slidably displaceably provided in the casing and communicate the output port with either the pump port or the tank port, and each spool. a plurality of pushers that are slidably inserted into the casing for sliding displacement and whose distal ends protrude outside the casing; and a plurality of pushers that are swingably provided in the casing so that each pusher can be pressed from the outside. In the pressure reducing valve type pilot valve, the operating rod is connected to the tip side of each of the pushers so as to be able to push down and push up, and the spool is returned to a neutral position by operation of the operating rod. A pressure reducing valve type pilot valve characterized in that it is provided with engaging means for respectively engaging the proximal end side of each pusher and the distal end side of each spool.