ELECTRIC DOOR LOCK SYSTEM FOR REFRIGERATED DISPLAY CASES

摘要

An electric door lock assembly including a solenoid having a plunger movab le between retracted and extended positions, and a mounting bracket for mountin g the solenoid to a door or door frame so that the plunger operatively moves along a vertical axis between the retracted and extended positions. A locking arm or bolt is pivotally connected at a proximal end thereof to the plunger. A connecting arrangement causes rotational and linear pivoting of the arm relative to a horizontal axis as t he plunger is moved between the retracted and extended positions such that a distal end of the arm moves between unlocked and locked positions relative to a keeper in the door . This arrangement can include the locking arm having an elongate axial slot in whi ch a fixed pin of the mounting bracket is positioned; the pivot pin defining the horizontal axis. The proximal end of the locking arm is pivotally connected to the bottom end of the plunger. Thereby, as the plunger travels up and down the proximal end moves up and down, and the locking arm slides relative to the pin, resulting in the rotational and linear pivoting.