EP0795664B1 - Mortise lock - Google Patents

Abstract

The slider has a slot running at an angle of approximately 45 degrees to the cover for the engagement of a pin arranged on a bolt. The slider is tensioned by a key ward or a closure cylinder closure nose formation on a bolt back closure and held by a stop in the tensioned position. The stop is released by the key ward or the closure cylinder closure nose formation (11). The stop comprises a securing cam (12) on the slider and a stay arranged on a spring-loaded stop lever (6). On a pin (8) of the bolt (5) is a change lower part (14) operable from the key ward or the closure cylinder closure nose formation.

Description

The invention relates to a mortise lock with a in a lock housing at least two parallel spaced guides to the forend led slide, which runs approximately diagonally to the forend Slot for engaging one located on a latch Has pin, the slider by means of a key bit or a lock cylinder locking lug biased and is held in a cocked position by means of a lock such that it after releasing the lock through the key bit or the cylinder lock nose the latch lock triggers and the lock out of a Slider arranged locking cams and one on a spring-loaded Locking lever arranged case exists.

DE 43 37 969 A1 describes such a self-locking security door lock according to the preamble of claim 1 been disclosed. This security door lock is against sliding blocked by a tumbler that is built into the gear element. there can be unlocked by pressing the latch retractable. For this a slide is used, which has a slot for has the engagement of a pin arranged on a bolt. This Slider is pretensioned by means of the locking lug of the locking cylinder.

EP 0 575 701 A1 describes a mortise lock for an outer door. This lock of the aforementioned type is designed so be that different lock variants in a simple manner can be created. A change is also used for this, the consists of an exchangeable lower part and an exchangeable upper part. there the interchangeable upper part is pivoted by the handle follower.

It is desirable to use mortise locks of the aforementioned type so-called tubular frame locks as narrow as possible. It is particularly difficult to use additional functions such as Exchange function or panic function to integrate into the lock.

The object of the invention is in a mortise lock of the aforementioned Genus, i.e. a mortise lock with a pretensionable slide mechanism with a slim design, an alternating function and a panic function to integrate.

The invention solves the problem with the features of the claim 1; further refinements are characterized by claim 2.

According to the teaching of claim 1 it can be seen that when pressing the The lower change lever automatically into one position by means of the pin arranged on the bolt with which the changing function is carried out by means of the locking cylinder triggered, i.e. the trap can be closed. As well it can be seen that - with the bolt locked - in the panic situation by pushing the handle both the slide into its pre-tensioned position spent (and thus the bolt closed), as well the trap can be closed. The change and panic function is thus integrated in a lock mechanism, in which the slide during of the bolt inference biased and the bolt closure by short key actuation can be triggered suddenly, like this Subject of the applicant's previously mentioned registration of equal priority is.

In claim 2 is a particularly advantageous embodiment of the guide marked of the lower part; when aligned parallel to the faceplate Interchangeable lower part, i.e. in the closed position of the Riegel, is then the central longitudinal axis of the elongated hole in the interchangeable lower part, in which the bolt of the bolt leads, at an acute angle to the Inclined central longitudinal axis of the bolt. This causes the latch to its inference movement is a rotary movement on the interchangeable lower part exercises, so that the lower part in the access and thus in the Movement trajectory of the locking cylinder locking nose arrives.

Figur 1:

das Einsteckschloß in einer Ansicht auf das Schließblech;

Fig. 2 - 4:

verschiedene Phasen der Schloßbetätigung unter Fortlassung des Schiebers und des Auslösehebels;

Figur 5:

den oberen Wechselhebel;

Figur 6:

den unteren Wechselhebel;

Figur 7:

die Falle;

Figur 8:

die beiden Panikhebel

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

Figure 1:

the mortise lock in a view of the striking plate;

Fig. 2-4:

different phases of the lock actuation while leaving the slide and the release lever;

Figure 5:

the upper change lever;

Figure 6:

the lower change lever;

Figure 7:

the trap;

Figure 8:

the two panic levers

In Figure 1, the mortise lock is generally designated 1. It exists essentially from the lock plate 2, the faceplate 3, the slide 4, the bolt 5 with pin 8, the locking lever 6 and the release lever 7.

In the illustration according to FIG. 1, latch 23 and bolt 5 are locked. It can be seen that when the locking cylinder locking lug 11 is actuated the image plane in the clockwise direction of that guided in the guides 10 Slider 4 is moved up in the image plane, the one on the slider 4 arranged locking cams 12 snaps into the detent 13 of the locking lever 6. the spring 35 being tensioned.

By driving over the release lever 7 with the locking cylinder locking lug 11 in a clockwise direction and then a short left turn is the locking lever 6 in the image plane by means of the release lever 7 pivots to the left and releases the locking cam 12, so that the slide 4th get into the position shown in Figure 1 and thus the latch can trigger. The pin 8 arranged on the bolt 5 passes through the slot 9 in the slide 4.

in Figure 2 is omitting the slide 4 and the release lever 7 shows a situation in which the slide 4 in the figure 1 position shown, the lower change lever 14 due to the force of the spring 15 is pressed against the stop 36. Figure 2 further shows that in this position the lower change lever 14 the elongated hole 32 arranged in the change lever with its central longitudinal axis 33 inclined to the central longitudinal axis 34 of the bolt 5. The lower Change lever 14 is thus in its lower position and cannot in this situation by means of the locking cylinder locking lug 11 be operated.

In the illustration according to FIG. 3, the slider 4 is in the image plane has been moved so that the latch 5 is included. Doing the pin 8 arranged on the latch 5 in the image plane to the right emotional; since the central longitudinal axis 33 of the elongated hole 32 is inclined to the central longitudinal axis 34 of the bolt 5 runs, the lower change lever pivots 14 to the right in the image plane and can thus from the lock cylinder locking nose 11 caught up in another closing tour and in the image plane can be shifted upwards, as shown in FIG. 4 is. The stop 19 of the lower change lever 14 corresponds with a stop 20 of the upper Weonsel lever 22 (see Figures 5 and 6) such that trap 23 is included. The changing function is given. The panic function is also shown in FIGS. 3 and 4 recognizable. For this purpose, a first panic lever 24 is on the nut 21 (see also Figure 8) connected, via which a two-armed second panic lever 27th is actuated, which is mounted in a pin 37 on the lock plate 2. The free end 28 of the longer leg 29 of the second panic lever 27 underpins the locking cam 12 of the slide when pivoting the nut 21 4 and lifts the slider 4 so that the latch 5 is retracted, i.e. gets into the inference position. At the same time, the nut 21 runs arranged cams 30 against a corresponding driver nose 31 of the Interchangeable upper part 22, so that the trap 23 is also closed. The panic function is thus given.

It can be seen that after withdrawal of the trap 23 by means of two-part change in the subsequent movement of the key bit in the left-handed sense, the changeable lower part in its guides 16 and 17 (the guide 16 is formed by the slot 32) in the Image plane slides down, so that the trap 23 in a known manner is re-opened by appropriate spring means.

5 to 8 are those for the alternating function and those for the panic function relevant components.

reference numeral

1

Mortise lock

2nd

Lock plate

3rd

Forend

4th

Slider

5

bars

6

Locking lever

7

Release lever

8th

Pin on the bolt

9

Slit in the slider

10th

Guides for sliders

11

Lock cylinder lock nose

12th

Latch cams on the slide

13

Rest

14

Interchangeable lower part

15

feather

16

Guide of the changeable lower part

17th

Guide of the changeable lower part

18th

End of the lower part

19th

Stop on the changeable lower part

20th

Stop on the changeable upper part

21

Nut

22

Interchangeable top

23

Cases

24th

first panic lever

25th

free end of the first panic lever

26

shorter leg of the second panic lever

27

second panic lever

28

free end

29

longer leg of the second panic lever

30th

Cam on the nut

31

Driver nose

32

Elongated hole in the changeable lower part

33

Central longitudinal axis of the elongated hole

34

Central longitudinal axis of the bolt

35

feather

36

attack

37

Cones

Claims (2)

1. A mortise lock including a slide lever (4) guided inside a lock casing at least at two guides (10) arranged at a distance with regard to each other and parallel with respect to the front plate (3), said slide lever (4) presents an indentation (9) running approximately diagonally with respect to the front plate (3) and provided to catch a journal (8) arranged at a dead bolt (5), whereby said slide lever (4) is pre-loaded upon dead bolt retraction by means of a bit of a key or by means of a closing cylinder cam (11) and held in this pre-loaded position by means of a bracket, such that it triggers the dead bolt extension upon releasing the bracket by means of the bit of a key or by means of the closing cylinder cam (11), and the bracket consists of a catch cam (12), arranged at the slide lever (4), and of a notch (13) arranged at the spring-loaded bracket lever (6), characterised by the following features:

   (a) a lower reversing part (14) that can be actuated by means of the bit of a key or by means of the closing cylinder cam (11) is guided at the journal (8) of the dead bolt (5), which part, when the dead bolt (5) is in the retracted position, is intercepted by the journal (8) of the dead bolt (5) through the bit of a key or through the closing cylinder cam (11) and, when the dead bolt (5) is in extended position, it is maintained disengaged by means of a spring (15), whereby said lower reversing part (14), which is guided inside the lock casing at two guides (16, 17) arranged at a distance with regard to each other, presents, at its end (18) opposite to the bit of a key or to the closing cylinder cam (11), a stopper (19) corresponding to a stopper (20) of an upper reversing part (22) rotatable about a follower (21), whereby the upper reversing part (22) is connected to a latch (23) such that upon actuation of the lower reversing part (14), the latch (23) is retracted with the intention to maintain a reversing function, and whereby one of the guides (17) is arranged almost parallel with regard to the front plate (3);

   (b) a first anti-panic lever (24) is rotatably connected at the follower (21), which lever with its free end (25) is applied at the shorter leg (26) of a second two-leg anti-panic lever (27) located in a rotatable bearing at the main lock plate (2), which lever with its longer leg's (29) free end (28) intercepts the catch cam (12) arranged at the slide lever (4) such that upon actuation of the door handle the slide lever (4) is pre-loaded and the dead bolt (5) is retracted, whereby a cam (30) arranged at the follower (21) pivots the upper reversing part (22) by means of a driver cam (31) arranged at the upper reversing part (22) and the latch (23) is retracted in order to maintain a anti-panic function.
2. A mortise lock according to claim 1, characterised in that the lower reversing part (14) presents an oblong hole (32), which is guided at the journal (8) of the dead bolt (5), and which center longitudinal axis (33), when the dead bolt (5) is in the extended position, describes at an acute angle with regard to the center longitudinal axis (34) of the dead bolt (5) and when the dead bolt (5) is in the retracted position, it parallels the bolt's center longitudinal axis (34).

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