EP2169155A2 - Lock - Google Patents

Abstract

The lock (10) has an actuating element connected with a control device over which an electrical locking device (26) is provided in an unlocking position. An additional latch (20) is provided in the electrical locking device that is formed as an electrical opener (24), where the opener is attached to the latch. The opener is integrated completely into a door frame. The electrical locking device is supplied with current when placed in a locking position.

Description

The invention relates to a lockable lock with an electrical locking system for doors, in particular for escape doors, with a latch bolt, an electrical lock, an actuating element and a control device, wherein the actuating element is connected to the control device, via which the electrical lock can be brought into the unlocked position ,

Escape and rescue routes are often closed and locked with escape doors, which are released in case of danger on request, that is unlocked. For this purpose, an electrical locking system is provided, which can be controlled either centrally or on site. For this purpose, buttons, switches or sensors are provided, the signal to the locking system controls an electrical lock that changes from its locking position to its unlocked position.

Usually, for such an electrical locking magnets used, which are mounted on the upper cross member of the frame and attached to a door Collaborate counterpart. Such a locking system has due to design some negative properties. Namely, in addition to the cutouts for the main lock additional cutouts or mounting holes for the electrical locking elements must be provided, resulting in a weakening of the door panel and an increased processing and assembly costs. Such treatments can weaken the door panel so far that the fire or smoke protection properties are endangered.

In an attempted access of the door without electrical release of the electric lock, the operation of the handle retracts the latch of the main lock, but the door continues to pass through the electrical locking element located at the top of the door, e.g. held the magnet. If the wearer now exerts increased pressure on the door element, which can be enormous in panic-like reactions, this deforms to the point of damage to the door leaf, since the latter is still electrically locked. In particular, the large distance of the magnet to the pusher represents a major risk of damage to the door panel in such violent opening attempts. In addition, such escape doors can not be retrofitted or only consuming.

From the DE 40 33 840 C2 is an integrated into the lock case electromagnetically actuated door opener with panic function known. This door opener can both the trap as well as push the bolt back into the lock. From the DE 102 37 729 A1 is an escape door opener especially for the hospital area known. The DE 10 2006 038 610 A1 shows a slim counter-box for a panic lock. From the DE 38 17 308 C1 is a frame-side opener for a lock with two traps in standard dimensions of the castle known. Finally, the shows DE 30 50 356 C2 a panic lock with solenoid.

The invention has for its object to provide a lock, which can be easily installed and ensures that the door leaf is not damaged when attempting to open the door (forcibly) with activated electrical locking.

This object is achieved in a lock of the type mentioned according to the invention that an additional case is provided that the electrical lock is designed as an electric opener and the electric opener is associated with the additional case.

The lock case has in the embodiment of the lock according to the invention not only a latch bolt, but an additional case, wherein both the latch bolt and the additional latch engage in the frame-side faceplate or the strike plate. The latch is automatically locked by the latch bolt when the door is closed. The unlocking of the latch bolt is done by manual operation of a pusher or a push rod (push bar). The additional case has the significant advantage that the door can be closed easily, but is locked in its closed position, since only the latch bolt, but not the additional case, is controlled via the pusher. An unlocking of the lock can only be done by means of the electric opener, which engages behind the additional case and releases only when activated. To open the door, therefore, the pusher must be operated manually and the electric opener must be controlled.

An essential advantage of the invention is that the additional locking, which is realized in the prior art from relatively far away from the lock magnets, now takes place directly on the lock, so that even with a faulty operation, that is, in a violent opening attempt of how in front of the locked door, no damage to the door leaf due to twisting of the door leaf is to be feared.

Another advantage is that the door leaf no additional cutouts or fixtures are required because the additional case is integrated in existing anyway lock.

In one embodiment of the invention, the electric opener is fully integrated into the door frame. This integration can equally well done in wood or steel frames or frames. To accommodate the electric opener, it only requires a cutout in the frame, the cutout, however, is supported by the masonry, and therefore does not lead to any weakening of the overall system.

In one embodiment of the invention it is provided that the electrical lock is energized in its locking position. Systems operating on the quiescent current principle ensure that the door is locked as long as the circuit is not interrupted. If this is interrupted, for example, by an emergency button, then the electrical lock, that is, the electric opener, transferred to the unlocked position and the additional case is released. The door can be opened by pressing the button.

In another embodiment, the electrical lock is de-energized in its locked position. To transfer the electrical lock, that is, the electric opener, in the open position therefore requires a current to the lock, which can be done for example via a switch. This variant is used for example in security areas or in the hospital area.

In one embodiment of the invention, the electric opener on the frame-side face plate or on the strike plate attached. This can be done for example by positive joining or by means of a screw or a clamping. The faceplate is unlatched in the area of the additional latch so that the latch can pass through the faceplate when the door is opened. In this case, the faceplate may be formed as a flat, angular or flap forend.

Another advantage of the invention is seen in that the additional case by means of a lock cylinder actuated, that is, can be brought into the open position. In this way, the escape door or the lock can be unlocked even if the electrical lock remains in its locked position. In this case, the lock cylinder can be actuated on one side or on both sides.

Finally, a significant advantage is also seen in the fact that the lock can be retrofitted into existing systems. On the door leaf, it requires no additional recesses or cutouts or mounting holes, since only the lock case must be changed. In addition, no power lines must be laid in the door leaf. On the frame, a cutout must be made to accommodate the electric opener, but does not weaken the frame. Furthermore, it requires a notch on the faceplate or a new strike plate is mounted.

Further advantages, features and details of the invention will become apparent from the subclaims and the following description in which, with reference to the drawing, a particularly preferred embodiment is described in detail. The features shown in the drawing and mentioned in the description and in the claims may each be essential to the invention individually or in any combination.

Figur 1

eine Draufsicht auf das erfindungsgemäße Schloss in dessen Schließstellung; und

Figur 2

das Schloss gemäß Figur 1 in perspektivischer Ansicht und Explosionsdarstellung.

In the drawing show:

FIG. 1

a plan view of the lock according to the invention in its closed position; and

FIG. 2

the castle according to FIG. 1 in perspective view and exploded view.

The castle designated overall by 10 has a lock case 12, which is inserted into a corresponding cutout of a (not shown) door leaf and is attached via a lock plate 14 on the door leaf. The lock 10 has a latch bolt 16, which can be actuated via a pusher (not shown) acting on a pusher handle 18 or a pusher rod and thereby retractable into the lock case 12. According to the invention, the lock 10 has an additional latch 20, which is overlapped by a pawl 22 of an electric opener 24. The electric lock 26 forming electric opener 24 is mounted on a strike plate or a faceplate 28, for example an angle cuff, which in turn is attached to a frame (not shown). The additional case 20 can be actuated in particular by means of a lock cylinder 28 and withdrawn into the lock case 12.

The FIG. 2 shows the lock case 12 with fully extended latch bolt 16, thereby occupying its latch position. The electric opener 24 is fastened, for example with two screws 32 on the face plate 28. In addition, it can be seen that the faceplate 28 has a cutout 34 in which the pawl 22 of the electric opener 24 can move.

To open an escape door locked with the lock 10, the latch bolt 16 must be pulled completely into the lock case 12 by manual actuation of the pusher or a pusher rod. In addition, the electric opener 24 must be actuated, which takes place in an operating according to the closed-circuit principle electric opener 24 by interrupting the circuit or working on the working current principle electric opener 24 by energization. Characterized the locking of the additional case 20 is released by the pawl 22 so that it can be pivoted by the pushed out of the lock case 12 additional case 20. The escape door can now be opened.

When reclosing the escape door both the latch bolt 16 and the additional case 20 are inserted into the lock case 12, with fully closed escape door of the latch bolt 16 then in his in the FIG. 2 shown locking position is transferred, in which he exits completely from the lock case 12 and fully engages the face plate 28.

In addition, there is the possibility that the cylinder lock 30 is actuated not only on one side, but also on both sides, that is, both on the inside and on the outside of the escape door.

Claims (9)

Lockable lock (10) having an electrical locking system for doors, in particular for escape doors, with a latch bolt (16), an electrical latch (26), an actuating element and a control device, wherein the actuating element is connected to the control device via which the electrical lock (26) can be brought into the unlocked position, characterized in that an additional latch (20) is provided, that the electrical lock (26) as an electric opener (24) is formed and the electric opener (24) of the additional latch (20) is associated , Lock according to claim 1, characterized in that the electric lock (26) is energized in its locking position. Lock according to claim 1, characterized in that the electrical lock (26) is de-energized in its locking position. Lock according to one of the preceding claims, characterized in that the electric opener (24) on the faceplate (28) is attached. Lock according to claim 4, characterized in that the faceplate (28) is designed as a flat, angular or flap cuff. Lock according to one of the preceding claims, characterized in that the electric opener (24) is completely integrated in the door frame. Lock according to one of the preceding claims, characterized in that it can be retrofitted. Lock according to one of the preceding claims, characterized in that the additional latch (20) can be actuated by means of a lock cylinder (30), ie can be brought into the open position. Lock according to claim 1, characterized in that the lock cylinder (30) can be actuated from both sides of the lock case (12).

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