EP0808976A2 - Self-locking emergency lock - Google Patents

Abstract

The invention relates to a self-locking panic lock with a spring-loaded cross latch (7), a slide-controlled bolt (6), a slide which can be actuated in the longitudinal direction of the lock by means of a key actuation and a spring-loaded control part (8) which locks the slide when the bolt is closed, and with a follower (9 ), which has a panic lever actuating the slide. The invention is based on the fact that by means of an interchangeable part (12) which can be locked in its two end positions and is actuated by the key or cylinder bit (18), the two halves of a split follower (9) can be coupled or uncoupled, the interchangeable part (12) in Embodiment of the invention by key actuation of a switch-on lever (14) and a switch-off lever (15) can be fixed in its respective end position. <IMAGE>

Description

The invention relates to a self-locking panic lock with a spring-loaded cross latch, a slide-controlled bolt, a slide which can be moved in the longitudinal direction of the lock by means of a key actuation and a spring-loaded control part which locks the slide when the bolt is closed, and with a follower which has a panic lever actuating the slide.

From DE A 39 38 655 a self-locking panic lock has become known, the slide of which can be moved by motor or mechanically. In addition to the lock bolt and the lock latch designed as a cross latch, a control part is provided with which the slide can be held in its upper position, which releases the cross latch, when the bolt is closed. A lever called a follower is also connected to the one-piece lever follower, by means of which the slide and thus the bolt can be actuated and the door can be opened from the inside (panic function). The lock set-up of the lock described above does not provide any components with which it is possible to open the door from the outside by actuating the handle.

DE 37 36 592 C2 shows a tubular frame lock with a split nut. DE 35 21 213 A1 also describes a split nut for a latch panic lock, in particular for tubular frame doors.

The object of the invention is to develop a self-locking panic lock of the type described above in such a way that a switchover function is provided, that is to say that bolt actuation via the handle is only possible from the inside or from the inside and outside. This is to be made possible in particular by advantageous structural features in the case of narrow locks, that is to say in so-called tubular frame locks. The switching technology according to the invention should also be able to be used in self-locking panic locks which are provided with a device for delayed closure of the bolt.

The invention solves the stated problem by the teaching according to claim 1. In particular, the locking of an interchangeable part in its respective end position enables a simple construction of the operating mechanism, i.e. the interchangeable part does not have to be held in its respective position by components constantly acting on the interchangeable part. Since the interchangeable part only has to be moved within the lock housing for the coupling or decoupling process by a relatively small amount, there is the advantage that the unlocking of the door (dead bolt lock) and switching, i.e. the connection of two nut halves via the interchangeable part can be done with a single key movement.

Further features of the invention are characterized by the subclaims.

According to claims 2 and 3, a switch lever and a switch lever are mounted on the lock plate, which can be acted upon by key actuation (lock cylinder bit), the switch part being moved by means of the switch lever so that the nut halves are coupled and the switch part is moved by the switch lever that the coupling of the nut halves is released.

In an embodiment of the invention (claim 4), the switch-off lever is designed as a two-armed lever.

Both the on lever and the off lever are actuated by means of the lock cylinder bit; they act alternately on a switching cam arranged on the interchangeable part (claim 5).

On the side of the interchangeable part opposite the locking cylinder and thus the on lever or the off lever, an intermediate lever is arranged in the area of the follower nut, which is rotatably mounted on the lock plate and can be pivoted by a switching cam arranged on the interchangeable part (claim 6). This intermediate lever is pivoted and actuated by the lock cylinder bit when the switch lever is actuated in turn a switch lever pivotally mounted on the handle follower, which couples the nut halves to one another. When the switch-off lever is actuated, that is to say when the interchangeable part is displaced as a result, the intermediate lever engages with the changeover lever so that the two nut halves are decoupled.

überspringen" die Schaltkeile jeweils mit ihren Keilflächen die am Schloßblech angeordneten Führungsnocken und legen somit das Wechselteil in der jeweiligen Position gegenüber dem Schloßblech fest.The interchangeable part in its respective end position is advantageously locked by switching wedges which are positively guided on the one hand in a recess of the interchangeable part and on the other hand on guide cams of the lock plate (claim 7), two switching wedges spaced by a spring being arranged in the recess of the interchangeable part (claim 8 ). When the replacement part is actuated by the switch-on lever or switch-off lever

skip "the switching wedges with their wedge surfaces, the guide cams arranged on the lock plate and thus fix the interchangeable part in the respective position relative to the lock plate.

In practice, it has also proven to be advantageous to cover the recess receiving the switching wedges in the interchangeable part by a cover plate closing the recess, in order in particular to secure the position of the spring that spreads the switching wedges (claim 9).

Riegelrückschluß" und die Betätigung des das Wechselteil verschiebenden Einschalthebels mit einer einzigen Schlüsselbewegung erfolgen. Dabei hat es sich als besonders vorteilhaft erwiesen, den vom Schließzylinderbart betätigten Anschlag des Einschalthebels so in die Rotationskurve des Schließzylinderbartes einfassen zu lassen, daß bei einer vorbestimmten Stellung des Schließzylinderbartes, die durch einen Begrenzungsnocken der Schließzylinderkontur festgelegt ist, sowohl der Schieber als auch der Einschalthebel in ihrer oberen Position durch den Schließzylinderbart abgestützt und damit arretiert werden. Bei dieser Schlüsselstellung ergibt sich überraschenderweise der Vorteil einer sogenannten

Dauerauf-Funktion", d.h. die Funktion der Selbstverriegelung ist aufgehoben, was bedeutet, daß beim Schließen der Tür der Riegel nicht ausgeschlossen wird. Diese Funktion kann insbesondere dann vorteilhaft sein, wenn Material durch die Tür transportiert werden soll, ohne daß eine Drückerbetätigung erforderlich ist. Die vorgenannten Merkmale sind durch Anspruch 10 gekennzeichnet.As mentioned above, the operation of the slide can be in the sense

Bolt inference "and the actuation of the switch-on lever displacing the interchangeable part take place with a single key movement. It has proven to be particularly advantageous here to have the stop of the switch-on lever actuated by the lock cylinder bit included in the rotation curve of the lock cylinder bit so that at a predetermined position of the lock cylinder bit, which is fixed by a limiting cam of the locking cylinder contour, both the slide and the switch lever are supported in their upper position by the locking cylinder bit and thus locked in. This key position surprisingly gives the advantage of a so-called

Permanent open function ", ie the function of self-locking is canceled, which means that when the door is closed, the bolt is not excluded. This function can be particularly advantageous if material is removed by the Door is to be transported without the need to press a button. The aforementioned features are characterized by claim 10.

The invention is basically applicable to all mortise locks; it is characterized by a simple structure and particularly advantageous use in narrow locks with limited space and in particular in those self-locking panic locks in which a delayed locking lock when closing the door is possible by means of a corresponding slide lock by means of a control latch and an additional control part.

Figur 1:

eine Ansicht auf das Schloßeingerichte bei abgenommener Schloßdecke

Figur 2:

eine Ansicht gemäß Figur 1 bei vorgeschlossenem Riegel unter Weglassung einiger für die Erfindung unwesentlicher oder bekannter Bauteile

Figur 3:

eine Ansicht gemäß Figur 2 bei rückgeschlossenem Riegel

Figur 4:

eine Ansicht gemäß Figur 3 unter Fortlassung des Schiebers bei gekoppelten Nußhälften

Figur 5:

eine Ansicht gemäß Figur 4 mit Darstellung des Schiebers bei entkoppelten Nußhälften

Figur 6:

den Schieber

Figur 7:

das Wechselteil

Figur 8:

das Abdeckblech

Figur 9:

die Panikhebel

Figur 10:

das Steuerteil

Figur 11:

den Zwischenhebel

Figur 12:

den Umschalthebel

Figur 13:

den Einschalthebel

Figur 14:

den Ausschalthebel

The invention is explained in more detail below on the basis of a possible exemplary embodiment. Show it:

Figure 1:

a view of the castle furnishings with the castle ceiling removed

Figure 2:

a view according to Figure 1 with the bolt locked, omitting some components which are insignificant or known to the invention

Figure 3:

a view of Figure 2 with the bolt closed

Figure 4:

a view according to Figure 3 omitting the slide with coupled nut halves

Figure 5:

a view of Figure 4 showing the slide with decoupled nut halves

Figure 6:

the slider

Figure 7:

the interchangeable part

Figure 8:

the cover plate

Figure 9:

the panic levers

Figure 10:

the control section

Figure 11:

the intermediate lever

Figure 12:

the switch lever

Figure 13:

the switch lever

Figure 14:

the switch-off lever

In Figure 1, the panic lock, generally designated 1, is shown, the essential components of which are a lock plate 2, a face plate 3, a slide 5, a bolt 6, a cross latch 7, a control part 8, a follower 9, a change part 12, a switch lever 14 and a switch-off lever 15.

The function of the self-locking panic lock is described below with reference to the other drawings.

In the illustration according to Figure 2, the bolt 6 is pre-closed, i.e. the slide 5 is in its lower position. The cylinder bit 18 moving on the locking cylinder contour 4 has moved from its basic position 18 ′ against a stop 29 of the bolt 5. In the illustrated position of the slider 5, a stop edge 25 of the slider 5 bears against a pin 20 of a cross drop shaft 19 of the cross latch 7. In this situation the door is closed; the cross latch 7 is locked against inference. As a result, the cross latch 7 is also unable to push back the control part 8 via a bolt extension 24 of the control part 8 which bears against the cross latch 7.

The slide 5 which slides in corresponding guides (not designated in any more detail) also locks the bolt 6 in its lower position via a mandrel 28 of the bolt 6. The interchangeable part 12 is also in its lower position. The door can only be opened via the follower 9 and the panic levers 11, 11 '- by means of which the slide 5 can be moved.

In FIG. 3, the slider 5 has been moved upwards in the image plane by means of the cylinder bit 18 via the stop 29; the bolt 6 has been closed in a known manner via a slot 26 in the slider 5 and, with its slider edge 45, has moved the stop cam 40 of the interchangeable part 12 and thus the interchangeable part 12 to the right in the image plane.

A hook-like extension 23 arranged in the upper region of the slider 5 grips a holding cam 22 on the control part 8, so that the slider 5 - seen in the image plane - is prevented from moving downwards. At the same time, the pin 20 on the cross shaft 19 is in a position opposite the slot 21 on the slide 5. A return spring 30 of the slide 5 is now tensioned.

It can be seen that for actuating the slide 5, i.e. for the conclusion of the bolt 6 only a key rotation of about 160 ° in a clockwise sense is required.

In the illustration according to FIG. 3, the interchangeable part 12 is in its lower position. The door can now be opened by pulling it open or pushing it on without pushing the trigger, the cross latch 7 being pushed into the lock housing. Here, the control part 8 is also inserted and releases the hook-like extension 23 of the slider 5 relative to the holding cam 22 on the control part 8 (so that the slider 5 could be pulled downward in the plane of the image due to the pretension of the spring 30); at the same time, however, the pin 20 on the cross shaft 19 moves into the slot 21 of the slide 5, so that the slide 5 can only be moved slightly downward in the image plane by the play between pin 20 and slot 21; this results in the bolt 6 being extended by approximately 2 mm, which generally corresponds to the door air and thus does not have a disruptive effect.

If - starting from the position of the cylinder bit 18 in FIG. 3 - the key is removed, ie the cylinder bit 18 is moved to the position 18 ', the cross latch 7 with the pin 20 is first inserted into the slot 21 of the slide 5 when the door is closed and hold the slide 5 in position. Only after the door has been completely closed, ie when the cross latch 7 is directly opposite the corresponding opening in the striking plate, which is not shown, and can move into the opening of the striking plate, is the slide 5 released and, as a result of its downward movement, can extend the bolt 6. This causes a delayed extension of the rain 6 and prevents damage to the striking plate.

According to FIG. 4, the cylinder bit 18 has been moved further in the image plane by approximately a further 30 ° to the right, starting from the position shown in FIG. 3. Here, the switch lever 14, which is rotatable about a pivot axis 38, has been pivoted and has shifted the change part 12 upward in the image plane via a switch cam 32. At the same time, the switch-off lever 15 has been pivoted slightly about its pivot axis 39 in a clockwise direction. The result of lifting the interchangeable part 12 is that a switch cam 33 of the interchangeable part 12 runs against a corresponding edge of an intermediate lever 13 and the intermediate lever 13 pivots about the axis 41 connected to the lock plate. The intermediate lever 13 itself pivots against a switch lever 10 which can be pivoted about the axis 43 arranged on the trigger nut 9 and which locks the two nut halves together. In this situation, the bolt 6 can be operated from both sides of the door using the respective handle.

In order to hold the interchangeable part 12 in its position, switching wedges 16 are provided in a recess 34 in the interchangeable part 12 by a spring 36, which correspond to guide cams 35 which are firmly connected to the lock plate. The recess 34 in the interchangeable part 12 can be covered by a cover surface 37 of a cover plate 17. In the interchangeable part 12 and in the cover plate 17, recesses 44 are also provided, which allow a sufficient displacement of the axis 41 of the connecting piece 13 within this recess.

Dauerauf-Funktion", d.h., die Tür kann durch Aufstoßen oder Aufziehen ohne Drückerbetätigung beliebig oft geöffnet und geschlossen werden, ohne daß der Riegel 6 in die ihm zugeordnete Ausnehmung des Schließbleches einfährt. Es erfolgt also kein Riegelausschluß. Die vorbeschriebene Schlüsselstellung wird vorteilhaft dadurch fixiert, daß im Bereich der Rotationskurve der Schließzylinderkontur 4 ein Begrenzungsnocken 42 angeordnet ist, der eine weitere Drehung des Schlüssels in rechtsdrehendem Sinne verhindert.In the key position according to FIG. 4, there is the special feature that (compare FIG. 3) the cylinder beard 18 simultaneously supports an actuating arm 46 of the switch-on lever 14 and the stop 29 of the slide 5. If the key is left in this position, there is a so-called

Permanent open function ", ie the door can be opened and closed as often as required by pushing open or pulling open without pushing the trigger, without the bolt 6 moving into the recess of the striking plate assigned to it. There is therefore no bolt exclusion. The key position described above is advantageously fixed thereby that in the area of the rotation curve of the locking cylinder contour 4 a limiting cam 42 is arranged, which prevents further rotation of the key in a clockwise direction.

Dauerauf-Funktion" aufgehoben; die Umschaltfunktion bleibt jedoch bestehen.In the case of a key rotation in the left-turning sense - starting from FIG. 4 - the

Permanent open function "canceled; however, the toggle function remains.

In the illustration according to FIG. 5, starting from the position according to FIG. 4, the key has been actuated in a counterclockwise direction; the cylinder beard 18 pivots the switch-off lever 15 in a counterclockwise direction, so that the switch-off lever 15 moves the switch part 12 downward in the image plane via a switch cam 32 on the switch part 12, so that the switch wedges 16 are now essentially below the guide cams 35. The nut halves are thus decoupled. When closing the door - as described above - the cross latch 7 loaded by a spring 31 is inserted into the striking plate, releasing the lowering of the slide 5 so that the bolt 6 can retract into the striking plate with a delay.

In the figure 6, 27 arranged in the control slot 26 of the slide 5 are designated locking points; these locking points 27 prevent undesired pushing back of the slider 5 even when the slider 5 is not fully moved into the corresponding recess in the striking plate, that is to say is not fully pre-locked.

Reference numerals

1

Panic lock

2nd

Lock plate

3rd

Forend

4th

Lock cylinder contour

5

Slider

6

bars

7

Cross trap

8th

Control section

9

Trigger nut

10th

Shift lever

11

Panic lever

11 '

Panic lever

12th

Exchange part

13

Intermediate lever

14

Engagement lever

15

Switch-off lever

16

Shifting wedges

17th

Cover plate

18th

Cylinder beard

18 '

Basic position of the cylinder beard

19th

Cross drop

20th

Cones on the cross drop shaft

21

Slit in the slider

22

Holding cams on the control section

23

hook-like extension on the slide

24th

Bolt extension of the control part

25th

Stop edge on the slide

26

Control slit of the slide

27

Resting point in the control slot

28

Thorn of the bolt

29

Stop on the bolt

30th

Return spring of the bolt

31

Cross trap spring

32

Switch cams on the interchangeable part

33

Switch cams on the interchangeable part

34

Recess in the interchangeable part

35

Guide cams for switching wedges

36

Spring for switching wedges

37

Cover surface of the cover plate

38

Swivel axis for switch lever

39

Swivel axis for switch-off lever

40

Stop cam on the interchangeable part

41

Axle of the intermediate lever

42

Limiting cams on the rotation curve

43

Switch lever axis

44

Recess in the interchangeable part

44

Recess in the cover plate

45

Slider edge

46

Operating arm

Claims (10)

Self-locking panic lock (1) with a spring-loaded cross latch (7), a slide-controlled bolt (6), a slide (5) that can be operated in the longitudinal direction of the lock with a key actuation and a spring-loaded control part (8) that locks the slide when the bolt is closed, as well as with a divided one Handle nut (9), which has a panic lever (11) actuating the slide, the lock mechanism having an interchangeable part (12) which can be displaced by means of the key actuation in both longitudinal directions of the lock when the bolt (6) is closed, via which the nut halves can optionally be coupled and uncoupled , and that the interchangeable part (12) is locked in its respective end position with respect to the lock plate 2 (switching function, connecting / disconnecting the nut halves). Self-locking panic lock according to claim 1, characterized in that the interchangeable part (12) can be displaced into its position coupling the nut halves by means of a switch lever (14) rotatably mounted on the lock plate (2) and acted upon by the key actuation. Self-locking panic lock according to claims 1 or 2, characterized in that the interchangeable part (12) can be displaced into its position decoupling the nut halves by means of a switch-off lever (15) rotatably mounted on the lock plate (2) and actuated by the key actuation. Self-locking panic lock according to claim 3, characterized in that the switch-off lever (15) is designed as a two-armed lever. Self-locking panic lock according to one of claims 1 to 4, characterized in that the switch-on lever (14) and the switch-off lever (15) are assigned a common switch cam (32) arranged on the interchangeable part (12). Self-locking panic lock according to one of claims 1 to 5, characterized in that for coupling or decoupling the nut halves of the handle follower (9) in the area of the handle follower (9) an intermediate lever (13) is arranged which is rotatably mounted on the lock plate (2) and can be pivoted by a switching cam (33) arranged on the interchangeable part (12). Self-locking panic lock according to one of claims 1 to 6, characterized in that the locking of the interchangeable part (12) in its respective end position by on the one hand in a recess (34) of the interchangeable part (12) and on the other hand on guide cams (35) of the lock plate (2) positively driven switching wedges (16) takes place. Self-locking panic lock according to claim 7, characterized in that two switching wedges (16) spaced apart by a spring (36) are arranged in the recess (34) of the interchangeable part (12) in a diametrical arrangement. Self-locking panic lock according to claims 7 or 8, characterized in that a cover plate (17) covering the switching wedges (16) receiving recess (34) is arranged between the interchangeable part (12) and the slide (5). Self-locking panic lock according to one of claims 1 to 9, characterized in that by means of the key actuation (lock cylinder bit 18) both the slide (5) and the switching lever (14) displacing the change part (12) when the bolt (6) is closed and the nut halves are coupled Lever follower (9) can be locked (permanent open function).

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