Patent ID: 7665812
Filing Date: 2010-02-23
Classification: E05B

Abstract:
1. A locking system for a file cabinet having at least one drawer which is movable between an open and closed position thereof relative to the file cabinet, and which file cabinet has respective left and right side panels, said locking system comprising: respective left and right lock bars that slide generally vertically for alternately locking and unlocking depending on their vertical positioning; a lock having a keyhole for receipt of a key therein for placing said lock in one of either a predetermined locked position or a predetermined unlocked position thereof; a drive actuator, engaged with said lock and associated with one of the respective left and right lock bars, such that movement of said lock between said locked and unlocked positions thereof is translated by said drive actuator into vertical slide motion of the associated one lock bar for corresponding locking and unlocking; a connection member, operatively associated with said drive actuator for corresponding movement thereof as the associated one lock bar is moved by said drive actuator; and a follower actuator, engaged with said drive actuator via said connection actuator and associated with the other of the respective left and right lock bars, such that movement of said lock between said locked and unlocked positions thereof which is translated by said drive member to the associated one lock bar is also translated by said follower actuator into vertical slide motion of the associated other lock bar for corresponding locking and unlocking, such that locking and unlocking functionality of said lock is positively translated between the respective left and right lock bars; wherein said lock further includes a lock driver comprising a resiliently mounted plunger pin, which is biased by such resilient mounting thereof for a position which prevents said lock from assuming a locked position while the locking system is in an open position; and wherein said drive actuator defines at least one pin situated for deflecting said plunger pin of said lock driver whenever the locking system is in a closed position, so as to permit the lock to assume a locked position thereof, whereby said lock driver is prevented from being moved into a locked position whenever the locking system is in the open position.