Patent ID: 8534722
Filing Date: 2013-09-17
Classification: E05B,E05C,Y10T

Abstract:
1. A safety interlocking device, comprising: a) a locking unit for mounting on a safe side of a door relative to a hazardous region having a door frame to which the door is mounted for opening and closing, the locking unit comprises a guide which can be fastened to the door and a lock bolt which is guided in the guide and has an actuating handle, said lock bolt being movable in a movement direction between a first unlocked position in which the door is unlocked and a second locked position in which the door is locked, b) a locking cage for mounting on the door frame interacting with the door, c) an escape unlocking means accessible from the hazardous region and configured to allow a user to open, from the hazardous region, the door when locked by the lock bolt and escape from the hazardous region, d) the locking cage comprising a base plate which can be fastened to the door frame and having a bearing surface for bearing against the door frame, and at least one locking stop which is articulated to the base plate so as to be able to pivot about a pivot axis from an interlocking position into an emergency opening position, wherein the pivot axis is oriented parallel to the movement direction of the lock bolt and when the at least one locking stop is in the interlocking position and the lock bolt is in the second locked position, the lock bolt is received between the at least one locking stop and the base plate, e) the escape unlocking means comprising an emergency handle and at least one arresting tip, and movable between a normal position, in which the at least one arresting tip arrests the pivotability of the at least one locking stop in the interlocking position, and an escape position, in which the at least one locking stop is released for pivoting into the emergency opening position, allowing the user to open the door from the hazardous region, f) at least one rod connecting the emergency handle to the at least one arresting tip, in which the at least one rod and the at least one arresting tip are embodied so as to be displaceable perpendicularly to the bearing surface on the base plate of the locking cage when the escape unlocking means is moved between the normal position and the escape position, such that when the escape unlocking means is in the normal position, the at least one arresting tip is in arresting operative connection with a first arresting surface of the at least one locking stop and a second arresting surface of the base plate, and g) the arresting operative connection being released by displacement of the at least one arresting tip perpendicularly to the bearing surface on the base plate.