EP0911470B1 - Locking device - Google Patents

Abstract

The main lock case is connected to the at least one extra lock case (3) by at least one drive rod (11). The extra lock case has a catch bolt (10) which slides back freely into the extra lock case from the catch position. The catch bolt is pushed by a spring (28) and or a gear. The side of the catch bolt opposite a leading slope (22) has a protuberance (43) near the tail of the catch (34). A catch restoring lever (40) touches the protuberance and has a first (46) and second (47) carrier.

Description

The invention relates to a locking device for a door, a window or the like, with a main lock box, at least one additional lock box and at least one the additional lock box with the main lock box connecting drive rod, the additional lock box has a freely retractable latch bolt, by a spring and / or through a gearbox over the normal Fall position out into its locking position is slidable, and at its one ramp opposite side and in the area of the trap tail a tab on which a latch reset lever attacks and the latch reset lever a first Has driver, via which a connecting rod in the a direction is taken.

A drive rod lock is known from DE 35 05 379 C1 which has a connecting rod with a Middle lock is connected. This connecting rod connects so the two latches of the two locks. To this Way a door can not only in the middle, but also in the Area of their corners with the striking plate on the door frame side get connected. When the door closes, the Strike plate inserted the latches, so that the door their Can assume the closed position. To open the door, the Case of the middle lock via a handle or a Lock cylinder actuated and withdrawn, this Movement over the connecting rod on the trap of the Espagnolette lock is transmitted, so that this too Trap is pushed back. It is disadvantageous that at the slide-in movement of the trap always also the drive rod is moved. This leads to a stiff trap and malfunctions.

EP 431 369 A2 is a mortise lock with a Latchbolt has become known. This latchbolt has in addition to the task of a conventional bar, the task to additionally lock the door, which is caused by that the latch has been closed by a Latch position automatically in a locking position passes, in which he continues from the mortise lock is pushed out as in the trap position and thereby engages far into the striking plate on the door frame side. On such latchbolts can usually no longer go through Insert a tool into the slot between the door and pushed back the door frame. A door with Such a latchbolt is after closing locked automatically.

DE 296 05 517 U1 is a locking device of the type mentioned at the outset, however there is a risk that the spring-loaded Latch bolt of the additional lock box with warped doors may not be fully in the striking plate of the Door frame is free, but stuck to the striking plate.

The invention has for its object a Locking device with additional lock boxes provide the door with better resistance offers against burglary and also the Locking function reliably occurs.

This object is achieved in that the locking device of the type mentioned The latch return lever has a second driver which he when locking a main lock bolt, causing the drive rod is taken in one direction, is pivoted into the locking position.

With the locking device according to the invention Achieved advantage that the door is off center, i.e. at least in the area of a corner above the latchbolt can be held and locked. If one falls with the locking device according to the invention equipped door to the lock, then the Latch latches on the striking plate on the door frame side pushed back, allowing the door to be closed becomes. If the door is in the closed position, the The latch bolt is pushed out of the additional lock box and goes beyond its trap position in one Locking position. In this position the latchbolt can e.g. by inserting a flat tool into the gap not pushed back between the door and the door frame become. Such a locked door offers a high one Burglary resistance. By the second driver ensures that with a downward movement of the Connecting rod, what by locking the main lock is effected by means of the key, the latchbolt is forced to extend. If the latch bolt on Clamp the striking plate of the door frame, this will either noticed when pressing the key so that the Door can be locked correctly, or through the Closing movement of the key becomes the clamping effect overcome and the latch bolt closed.

In one embodiment it is provided that the second driver of a bend or angling of the Trap reset lever is formed. Such a component is easy and inexpensive to manufacture. Also are existing latch reset lever easily against the latch reset lever according to the invention exchangeable.

Another embodiment provides that the second Driver is formed by a weld-on part. To this The case reset lever according to the invention are also inexpensive and easy to manufacture.

The extension stroke of the latch bolt is in one variant according to the invention in that the Master lock bolt one when closing on the Has drive rod acting extension. Through this The extension rod is moved so that over the Latch reset lever of the latch bolt also against possible slight resistance is pushed out.

Figur 1

eine Ansicht einer Ausführungsform der erfindungsgemäßen Verriegelungseinrichtung, welche sich aus einem Hauptschließkasten und zwei beidseits angeordneten Zusatzschließkästen zusammensetzt, wobei sich die Fallen der Schließkästen in der Fallenstellung befinden;

Figur 2

eine Ansicht des Hauptschließkastens mit abgenommenem Kastendeckel, wobei der Riegel zurückgeschlossen ist und die Falle sich in der Fallenstellung befindet;

Figur 3

eine Ansicht des Zusatzschließkastens mit abgenommenem Kastendeckel, wobei sich der Fallenriegel in der Verriegelungsstellung befindet; und

Figur 4

einen Schnitt IV-IV gemäß Figur 3 durch den Fallenriegel.

Further advantages, features and details emerge from the subclaims and the following description, in which particularly preferred embodiments are shown in detail with reference to the drawing. The features shown in the drawing and mentioned in the description and in the claims can be essential to the invention individually or in any combination. The drawing shows:

Figure 1

a view of an embodiment of the locking device according to the invention, which is composed of a main lock box and two additional lock boxes arranged on both sides, the latches of the lock boxes being in the latch position;

Figure 2

a view of the main lock box with the box lid removed, the bolt is closed and the latch is in the latch position;

Figure 3

a view of the additional lock box with the box lid removed, the latch bolt is in the locking position; and

Figure 4

a section IV-IV of Figure 3 through the latch bolt.

The one shown in FIG. 1 and overall with 1 designated locking device consists of a Main lock box 2 and two additional lock boxes 3. The Lock boxes 2 and 3 are on a lock cuff 4 attached. The main lock box 2 is with a Box lid 5 closed and there is a follower 6, a locking cylinder 7, a latch 8 and a bolt 9 recognizable. The trap 8 is in the trap position, so that it from a striking plate shown in Figure 4 33, which is located on the door frame, in the Main lock box 2 can be pushed in. The latch 9 is in the closed position. The Additional lock boxes 3 are also each with a Provide traps which are designed as latch bolts 10. The latchbolts 10 are also in her Latch position and can thus from a striking plate 33rd are pressed into the respective additional locking box 3. Finally, a drive rod 11 can be seen, the Main lock box 2 with additional lock boxes 3 combines.

In the view of the Main lock box 2, the box cover 5 is removed, see above that the closing mechanism is recognizable. For example, the from the lock cylinder 7 actuated change 12, the a bolt 13 on a slide 14 of an arm 15 one Control nut 16 attacks, recognizable. The slide 14 acts on a sliding stop 17 on one Control plate 18 is attached. In this control plate 18 is the drive rod 11 hooked in at 19. The steering nut washer 16 has a further arm 20, which is on a trap foot 21 the case 8 is present.

Is the lock cylinder 7, the change 12 and over this the control nut 16 in the direction of Actuated clockwise, then the arm 20 and the Latch foot 21, latch 8 in the main lock case 2 moved in. However, this can also be done in that the Handle nut 6 by means of a handle, not shown, in Is operated in a clockwise direction, with the Handle nut 6, the control nut disc 16 during its rotational movement entraining. In addition, when the lock cylinder is actuated 7 or the follower 6 of the slider 14 and the Control plate 18 displaced, whereby the drive rod 11th is operated.

With this drive rod 11 is the additional lock box 3rd connected according to Figure 3. In this, without box lid Additional locking box 3 shown is the latch bolt 10 Slidably mounted in the direction of the cutting line. This Latch bolt 10 is in Figures 3 and 4 in the Locked position in which the latch bolt 10 with its ramp slope 22 (FIG. 4) the lock cuff 4 protrudes and into a latch opening 32 of the striking plate 33 intervenes.

In Figure 4 it can also be seen that the latch bolt 10th with one running in its longitudinal direction, one-sided open groove 23 is provided. Located in this groove 23 a locking element 24 which is around an adapter sleeve 25 pivotable in the groove 23 and thus in the latch bolt 10 is stored. This locking element 24 is with a Locking nose 26 and a trigger nose 27 provided.

The spring force for the latch bolt 10 is from a Trap extension spring 28 (Figure 3) applied to a Spring guide pin 29 is pushed on and one hand on the inner wall of the housing of the additional locking box 3, on the other hand supported on a latch extension lever 30. This latch extension lever 30 is in a bearing 31 pivoted. The one opposite the bearing 31 End of the latch extension lever 30 engages the Trigger nose 27 opposite end of the locking element 24 and pushes it under the power of Latch extension spring 28 in the extension direction. Since that Locking element 24 via the clamping sleeve 25 with the latch bolt 10 is connected, this is also in the extension direction crowded.

It can be seen in FIG. 4 that the latch extension lever 30 attacks the locking element 24, the direction of the force the latch extension lever 30 but not by the Adapter sleeve 25 formed pivot bearing of the locking element 24 goes so that the latch extension lever 30 Swing moment counterclockwise on the Locking element 24 exercises. Because of this swing moment the locking lug 26 and the trigger lug 27 from the Groove 23 excavated.

When the door slams or closes, the Latch bolt 10 via the striking plate 33 (FIG. 4) in the Additional lock box 3 inserted.

The door is in its closed position and in alignment the latch bolt 10 to the latch opening 32 in Strike plate 33 on the door frame side (FIG. 4) fully inserted latchbolt 10 over the Latch extension lever 30 from the additional lock box 3 ejected. During this extension movement at the same time the locking element 24 against the direction of Pivoted clockwise around the clamping sleeve 25. there comes the trigger nose 27 with the edge facing it Latch opening 32 of the striking plate 33 in contact, whereby the locking element 24 against the pivoting moment in the groove 23 is inserted so far that the locking lug 26 on the Castle cuff 4 can slide past. That way a latch of the latch bolt 10 in the Trap position according to Figure 1 prevented, so that Latchbolt 10 in that shown in Figures 3 and 4 Can extend locking position. In this The latch position is the latch bolt 10 about 10 mm extended up to 15 mm further from the additional locking case 3, than in the trap position according to FIG. 1.

In a further embodiment, the Trap extension lever 30 after pivoting the Locking element 24 bear directly on the latch bolt 10 and extend it into the locked position.

As can be seen from FIG. 3, the trap tail 34 a projection 35. It can also be seen that by one Bearing pin 36 a latch lock lever 37 pivotally mounted is and via a locking lever spring 38, which acts as a leg spring is formed, counterclockwise is spring-loaded. The latch bolt 10 is in the fully extended position according to Figures 3 and 4, i.e. in the locked position, then engages behind Trap locking edge 39 the projection 35. It can be between the projection 35 and the trap locking edge 39, as in FIG 3 shown, there is a small distance, but is effective the trap locking edge 39 in the displacement path of the projection 35th

If the latch bolt 10 is now e.g. using a tool or the like inserted into the additional locking box 3, the projection 35 comes to the trap locking edge 39 System and a further insertion is prevented. The Latch bolt 10 is thus in its locked position locked against insertion.

If a trap reset lever 40, the one with his arm 41 at the free end of the drive rod 11 and with his other arm 42 on another Projection 43 of the latch tail 34 abuts, pivoted, engages a nose 44 of the free end of the arm 42 on one Setting 45 of the latch lock lever 37 (Figure 3) and lifts this from its locking position, in which the Trap locking edge 39 engages behind the projection 35 so far from that the trap locking edge 39 from the displacement of the Projection 35 emerges. In addition, the arm 42 is on Projection 43 and pulls when pivoting the Case return lever 40 the latch bolt 30 in the Additional lock box 3. Is the latch bolt 10 The door can be completely retracted into box 3 be opened.

With the door open and in the rest position Drive rod 11, the latch bolt 10 on the Trap extension lever 30 extended until the Locking nose 26 engages behind the lock cuff 4 and one further extension prevented.

In Figure 3 it can be clearly seen that the latch return lever 40 on his free arm 41 with a first one Driver 46 is provided, via which the drive rod 11th is moved vertically downwards. Furthermore, the Trap reset lever 40 at its free end 41 a second driver 47, which is by a weld-on part 48 is formed. About this weld-on part 48 Latch reset lever 40 when closing the Main lock bolt 9, whereby the drive rod 11 after is moved down into the locking position pivoted. Since this is a compulsory movement, the only is supported by the force of the spring 28, the Latch bolt 10 definitely pushed out.

When locking the main lock bolt 9 intervenes Extension 49 of the main lock bolt 9, which at its the Driving rod 11 facing side with a bevel 50 is provided on an inclined surface 51 of the drive rod 11 and drives it down.

Claims (4)

1. A locking device (1) for a door, window, or the like, comprising a main lock casing (2), at least one additional lock casing (3), and at least one pushrod (11) connecting the additional lock casing (3) with said main lock casing (2), wherein the additional lock casing (3) has a latch bolt (10) retractable from the latch position free into the additional lock casing (3), which can be biased by a spring and/or a gear means beyond the normal latch position into its locking position, and the a latch bolt (10) including an inclined leading edge (22) having a protrusion (43) in the region of a latch end (34) located opposite to said leading edge (22),a latch restoring lever (40) acting upon said protrusion (43), and said latch restoring lever (40) having a first catch (46) by means of which a pushrod (11) is moved in the one direction, characterized in that the latch restoring lever (40) is provided with a second catch (47) by means of which said latch restoring lever (40) is pivoted into the locking position during the closing of a main lock bolt (9), by which the pushrod (11) is taken along in the one direction.
2. The locking device according to claim 1, characterized in that said second catch (47) comprises a chamfer or an offsetting of said latch restoring lever (40).
3. The locking device according to claim 1, characterized in that said second catch (47) is formed as a welded-on element.
4. The locking device according to one of the preceding claims, characterized in that said main lock casing bolt (9) having an extension (49) which acts on said pushrod (11) during the locking procedure.

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