DOOR OPENING/CLOSING DEVICE

摘要

A door opening/closing device including a door, a locking hook mounted on an inner surface of the door, a solenoid mounted in a device housing, a locking lever connected swingably to a movable iron core of the solenoid and having a free end on an opposite side of a connection portion, and a controller for controlling the solenoid, in which the controller executes control so as to, if the door is closed and locked, separate the locking lever from the locking hook to release locking in conjunction with the movable iron core retreated by an electromagnetic attracting force by executing conduction control of the solenoid, and maintain an unlocked state while the door is closed by executing non-conduction control of the solenoid after unlocking and bringing the free end of the locking lever into contact with the locking hook by a return spring force.

主权项

1. A door opening/closing device comprising:
a door mounted on a device housing so as to be opened and closed; a locking hook mounted on an inner surface of the door; a solenoid mounted in the device housing and having a movable iron core advancing/retreating between a first position advanced by a return spring force during non-conduction and a second position retreated by an electromagnetic attracting force against the return spring force during conduction; a locking lever connected swingably on a movable iron core side of the solenoid and having a free end on an opposite side of a connection portion; and a controller for controlling the solenoid, wherein the controller executes control so as to when the door is closed, maintain a locked state of the door by locking the locking lever to the locking hook in conjunction with the movable iron core advanced to the first position by executing non-conduction control of the solenoid; and if a need to open the door arises while the door is in the locked state, separate the locking lever from the locking hook to release locking in conjunction with the movable iron core retreated to the second position by executing conduction control of the solenoid, bring the free end of the locking lever into contact with the locking hook by the return spring force in conjunction with the movable iron core advanced to the side of the first position by executing non-conduction control of the solenoid after unlocking, and maintain an unlocked state of the door while the door is closed.