Patent ID: 7118087

Claim:
A coupling solenoid valve of which both side faces in the valve-width direction correspond to a first coupling face ( 8 a ) and a second coupling face ( 8 b ) for being coupled with another solenoid valve, said coupling solenoid valve comprising: a main valve unit ( 3 ) including a plurality of coupling communication holes ( 15 and 16 ) passing through in the valve-width direction, a valve hole ( 10 ) through which said coupling communication holes ( 15 and 16 ) mutually communicate, and a spool ( 6 ) for switching a channel accommodated within said valve hole ( 10 ); and a solenoid operating unit ( 4 ) connected with said main valve unit ( 3 ); wherein said solenoid operating unit ( 4 ) comprises an adapter block ( 50 ) attached to said main valve unit ( 3 ), a center base ( 50 a ) extending from this adapter block ( 50 ), one or two pilot valves ( 7 a and 7 b ) detachably assembled to this center base ( 50 a ), a coupling connector ( 61 ), which is mutually connected to an insertion type when plurality of solenoid valves are coupled, for electrically connecting between the adjacent solenoid valves, and an electroconductive mechanism ( 66 ) for electrically connecting this coupling connector ( 61 ) to said pilot valves ( 7 a and 7 b ); said electroconductive mechanism ( 66 ) comprises an electroconductive board ( 68 ) electrically connected to said coupling connector ( 61 ), board terminals ( 69 a and 69 b ) protruding from this electroconductive board ( 68 ), a coil terminal ( 57 ) formed on the side face on said center base ( 50 a ) side of said pilot valves ( 7 a and 7 b ), and electroconductive fittings ( 70 a and 70 b ) electrically connecting this coil terminal ( 57 ) with said board terminals ( 69 a and 69 b ); and these electroconductive fittings ( 70 a and 70 b ) are supported by said center base ( 50 a ), and include elastic terminal portions ( 73 a and 73 b ) formed by being folded on both end portions, and these elastic terminal portions ( 73 a and 73 b ) are flexibly in contact with said coil terminal ( 57 ) and said board terminals ( 69 a and 69 b ) from the side-face direction.