EP1340873A2 - Locking device - Google Patents

Abstract

The locking mechanism has a lock housing (10) containing a sliding latch and an operating mechanism for displacement of the latch, cooperating with a sliding carriage provided with a second latch, moved in conjunction with the first latch. The sliding carriage can be moved along parallel guide rails (20), with a blocking element (38) preventing the latch release by fitting through a blocking opening (42) in one rail.

Description

The invention relates to a locking device a lock housing, one slidable in the lock housing guided trap and an actuator for Extend and retract the trap.

A locking device is known from EP 0 798 436 A2 known, the one main lock box and two Has additional lock boxes, which on a lock cuff are attached, with the two additional lock boxes over a connecting rod is coupled to the main lock case. The additional lock box is with a latch bolt provided automatically after closing the door completely from the housing of the additional locking box is pushed out.

The invention has for its object a To provide locking device, which one more offers greater security against burglary.

This task is performed with a locking device initially mentioned type according to the invention solved in that a slide is slidably guided in the lock housing, that the actuator engages the slide and that a second trap is arranged on the slide, the is moved along with the first trap.

In the locking device according to the invention not just one, but become two traps from the Lock housing pushed out and step into the assigned, a striking plate provided in the frame so that the door in locked this area to the frame via two latches is. To open the door without authorization, the locking device according to the invention two latches, in particular should be operated at the same time destroys both of these traps, e.g. sawn through. One of the two traps can be special resistant material, e.g. from a hardened Steel. Such Locking device offers a much higher one Security against burglary than conventional locks.

In a further training it is provided that one of the Traps is designed as a latch bolt. such Latchbolts are principally from EP 0 798 436 A2 known. These latchbolts have the job after The door automatically closes the trap Shift the latch position into the latch position so that a complete locking of the Door is done. Such a locked door is, in particular when both latches are in the latch position, hardly to open more unauthorized.

Another feature of the invention provides that the Traps are pushed out at the same time, what this does causes these traps to stick to a sled are located, and the sled the two traps from the retracted position to the trap position and if necessary, shifted from this into the locking position.

An even displacement of the slide within the The lock housing is achieved in that the carriage on two extending parallel to the extension direction Rails is guided. It also avoids that the sled is tilted.

A further increase in security is achieved by that a non-return lock is provided. This Backstop prevents the extended trap unauthorized, e.g. using a tool into which Lock housing is inserted.

According to a preferred exemplary embodiment, the backstop have a latch lock that at pushed out case in a housing-fixed recess intervenes.

The locking recess is preferably in one of the rails intended. In this way, when pushing back Exerted forces directly into the rail and from the Rail directly derived into the lock housing so that the trap is optimally supported. Moreover there is no need for additional elements to achieve this the rest, as this is a simple design as a recess are formed in the rail.

To further increase security, the Non-return lock transverse to the longitudinal direction of the rail displaced. In this way e.g. also gravity the backlash can be used to move this towards to shift the locking position or in order to the backstop to hold the rest position. Preferably the Spring back into the recess.

Finally, according to the invention, the non-return lock is by means of a latch reset lever can be unlocked. This The latch reset lever is activated by the actuator, e.g. driven by the drive rod and does that Push back the carriage, but before that the Non-return lock is unlocked.

Further advantages, features and details of the invention result from the following description, in which with reference to the drawing a particular preferred embodiment described in detail is. It can be shown in the drawing as well mentioned in the description and in the claims Features individually for themselves or in any Combination be essential to the invention.

Fig. 1:

eine Draufsicht auf eine Verriegelungseinrichtung mit abgenommenem Gehäusedeckel;

Fig. 2:

eine Draufsicht auf einen Schlitten mit daran befestigen Fallen;

Fig. 3:

eine im Schlossgehäuse verschieblich lagerbare Schubstange;

Fig. 4:

eine Rückdrücksperre;

Fig. 5:

einen Fallenrückstellhebel;

Fig. 6:

eine Fallenausschubfeder; und

Fig. 7:

eine Rückdrücksperrenfeder.

The drawing shows:

Fig. 1:

a plan view of a locking device with the housing cover removed;

Fig. 2:

a plan view of a sled with traps attached;

Fig. 3:

a push rod that can be slidably supported in the lock housing;

Fig. 4:

a backstop;

Fig. 5:

a latch reset lever;

Fig. 6:

a trap extension spring; and

Fig. 7:

a non-return spring.

1 shows an overall designated 10 Lock housing with the housing cover removed is. In the lock housing 10 are a push rod 12, which 3, in the direction of the double arrow 14 and a carriage 16, which is shown in Fig. 2, in Direction of the double arrow 18 slidably mounted. to Guiding the carriage 16 serve two rails 20, which extend parallel to the double arrow 18. The sled 16 is provided with a groove (not shown) in which slides the upper rail 20, the lower one Face of the carriage 16 on the facing Slides along the side of the lower rail 20.

On the carriage 16 is a first trap 22, which as Latch bolt is formed, screwed. Parallel to Trap 22 has a second trap on carriage 16 24, which is also screwed on, but not as Latch bolt is formed. Regarding the closer Design of the latch bolt is based on EP 0 798 436 A2 referenced. In addition, the carriage 16 with one Buffer element 26 made of PUR, which in a Carriage 16 provided receptacle 28 (Fig. 2) inserted can be. Through the buffer element 26 that The stop sound of the carriage 16 on the inside of the Wall 30 of the lock housing 10 damped.

1 and 5 also show a case reset lever 32 by a sliding element 34 of the push rod 12 is operated, which in turn by a (not shown) drive rod is driven. With this The latch reset lever 32 is, as already in EP 0 798 436 A2 discloses the trap 22 and the sled 16 from the shown extended position in a retracted position in the lock housing 10 postponed. The slide 16 slides along the Rails 20.

Before the carriage 16 from that shown in FIG. 1 Position in the lock housing 10 is withdrawn, steers a nose 36 of the latch return lever 32 a Backward lock 38 upwards, whereby the tabs 40th the non-return lock 38 from the locking recesses 42 be excavated. In the illustrated Locking position of the backstop 38 engage the Tabs 40 in two locking recesses 42. The first Locking recess 42 is provided in the upper rail 20 and the second locking recess 42 is parallel to one another Upper rail 20 extending bar 62 is arranged. The Locking recesses 42 prevent displacement of the Sledge 16.

It can also be seen in FIG. 4 that the Backstop 38 a perpendicular to the plane of the drawing bent tab 44, on which there is a leg 46 of the non-return spring 48 shown in FIG. 7 supported. The other leg 50 lies on a shoulder 52 of the carriage 16 (see Fig. 2), the spring 48 of a pin 54 is held. About the spring 48 Backstop 38 in that shown in Figure 1 Locked position held in which the tabs 40 in the Engage locking recesses 42.

Finally, FIGS. 1 and 6 also show a leg spring 56, one leg 58 of which is located on the lock housing 10 supports and the other leg 60 the case 22 and thus pushes the carriage 16 out of the lock housing 10.

In summary it can be said that with the Slide 16 two latches 22 and 24 from the lock housing 10 are pushed out, e.g. the trap 24 from one hardened steel can exist, making the total Burglary security is significantly increased.

Claims (10)

Locking device with a lock housing (10), a latch (22) slidably guided in the lock housing (10) and an actuating device for pushing out and retracting the latch (22), characterized in that a slide (16) is slidably guided in the lock housing (10) that the actuating device engages on the carriage (16) and that a second latch (24) is arranged on the carriage (16) and is moved together with the first latch (22). Locking device according to claim 1, characterized in that one of the latches (22 or 24) is designed as a latch bolt. Locking device according to one of the preceding claims, characterized in that the latches (22 and 24) are pushed out simultaneously. Locking device according to one of the preceding claims, characterized in that the slide (16) is guided on two rails (20) extending parallel to the direction of extension (arrow 18). Locking device according to one of the preceding claims, characterized in that a non-return lock (38) is provided. Locking device according to claim 5, characterized in that the push-back lock (38) has a latch lock (tab 40) which engages in a latching recess (42) when the latches (22 and 24) are pushed out. Locking device according to claim 6, characterized in that the latching recess (42) is provided in the rail (20) and / or the bar (62). Locking device according to one of claims 5 to 7, characterized in that the non-return lock (38) can be displaced transversely to the longitudinal direction of the rail (20). Locking device according to one of claims 5 to 8, characterized in that the non-return lock (38) engages in the latching recess (42) under spring force. Locking device according to one of claims 5 to 9, characterized in that the non-return lock (38) can be unlocked by means of a latch return lever (32).

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