Patent ID: 6318408
Filing Date: 2001-11-20
Classification: F15B,F16K,Y10T

Abstract:
A directional control valve comprising:a main valve body having, on a first side surface, a plurality of ports;a solenoid section provided at the inside of said main valve body and including a fixed iron core, a movable iron core, and a coil; anda valve mechanism section provided with a valve plug arranged coaxially with said solenoid section at the inside of said main valve body, for switching communication states of said plurality of ports by making displacement in accordance with an exciting action on said coil,wherein said valve mechanism section includes a displacement member connected to a first end of said movable iron core, a first spring member for pressing said displacement member toward said plurality of ports, a first pressing member and a second pressing member provided substantially in parallel to an axis of said displacement member, a second spring member fastened to said second pressing member, and a swinging member for being engaged with said first pressing member at a first end side and being engaged with said second pressing member at a second end side, said swinging member making swinging displacement about a supporting point of a shaft member attached at a central portion for rotation, andwherein said first pressing member is fitted to a hole of said displacement member to make displacement in an integrated manner, and said second pressing member is loosely fitted to a hole of said displacement member via a second spring member.