EP0795666B1 - Mortise lock - Google Patents

Abstract

The lock (1) has a bolt (5) which is operated inside a housing by a slider (4). The latter can be moved roughly parallel to the lock plate by the bit of a key, or by a lug on a lock cylinder, and has a slit (14) which extends diagonally towards the plate. A spigot (15) on the bolt can engage in the slit, and the ends of the latter have notched positions (16,17) for the spigot when the bolt is fully extended or withdrawn. At least one further notched position (18) is arranged between these end positions, and has a sliding surface (19) which enables the bolt to be extended, and a blocking surface (20) in order to prevent it from being withdrawn.

Description

The invention relates to a mortise lock with one in the lock housing a slide led bolt, which by means of a key bit or a lock cylinder bit about movable parallel to the faceplate Slide an approximately diagonal to the face slot for the intervention has a pin arranged on the bolt and at the slot end each stop points for the pin with complete locking and complete locking yoke are formed.

For example, by German Offenlegungsschrift 38 35 349, which relates to an electrically controllable lock, it is known that the movement of the bolt-controlling slit of the slide essentially Z-shaped to train. such that the slot is substantially diagonal to the direction of movement of the slide (control part). The slot has an upper and a lower locking point for the pin of Slider. It can be seen that the bolt on such locks only in its two end positions, namely when the bolt is fully locked and is reliably locked when the bolt is fully closed. In particular with manually operated locks there is one Design of the slot in the slide the danger. that the latch can be pushed back into its return position when the latch not fully retracted into the striking plate or not its full one Has reached the exclusion position. This can be the case, for example, if random or intends the possible depth of penetration of the bolt in the striking plate has been changed.

The object of the invention is that for the locking bar and locking yoke train the necessary mechanics in this way. that even with only partial Latch lock a push back of the lock in the full return position not possible. This task should preferably be solved for those mortise locks where the bolt lock is not multi-speed.

The invention solves the problem with a mortise lock at the beginning mentioned genus by the teaching of claim 1. The hereafter additionally arranged between the end stops of the slot Rest areas are designed in this way. that the sliding surfaces of these rest stops when locking the bolt slightly from the pin arranged on the bolt can be run over. while the pin is in the bolt inference reliably supported on the corresponding restricted areas.

The additional arranged between the end stops Resting points can be arranged at such a distance. that - starting of a 20 mm bolt lock - a first click into place a bolt lock of 15 mm and a second click into one Locking of 10 mm.

Further features are characterized by the subclaims.

It is beneficial. the additional rest areas on the upper long side the slot to arrange because of the spring loading of the slide the pin arranged on the bolt at the bolt yoke on the The top of the slot slides along, generally being sufficient has shown to provide two additional rest stops.

The lower longitudinal side of the slot is preferably obliquely straight trained and thus forms the sliding surface for the arranged on the bolt Pin when locking the bolt.

The above invention preferably takes place with single-speed moving Latch application; otherwise the application of the invention Solution independent of additional lock functions. for example Changing function. Anti-panic function or the like. applicable. However, it is particularly suitable for use in such Locks. in those with a closing movement, for example the Lock cylinder bit. the slider having the slot against the Force is biased by a spring and relieves the aforementioned Suddenly the entire bolt is excluded.

Figur 1:

eine Ansicht auf das Einsteckschloß bei abgenommener Schloßdecke mit ausgeschlossenem Riegel

Figur 2:

wie Figur 1, jedoch mit rückgeschlossenem Riegel

Figur 3:

den Schieber in etwas vergrößertem Maßstab

Figur 4:

den Sperrhebel in etwas vergrößertem Maßstab

Figur 5:

den Auslösehebel

The invention is explained in more detail below using an exemplary embodiment. It showed:

Figure 1:

a view of the mortise lock with the lock cover removed with the bolt removed

Figure 2:

like Figure 1, but with a closed bolt

Figure 3:

the slide in a slightly enlarged scale

Figure 4:

the locking lever on a somewhat enlarged scale

Figure 5:

the release lever

In the view according to FIG. 1, only those for the function of the invention are closed illustrative components: have been omitted for the sake of Clear functions that can be integrated, such as the handle actuation Swap function or the anti-panic function.

The mortise lock 1 essentially has a lock plate 2 which striking plate side is limited by a faceplate 3. The essential Components are the slide 4, the bolt 5, the locking lever 6 and the release lever 7 (see Figure 3 to 5).

As can be seen in particular from FIG. 3. is a slot in the slider 4 14 provided, which runs approximately diagonally to the faceplate 3. The slot 14 has end stops 16 and 17. between those at the top Longitudinal side 32 of the slot 14 arranged additional locking points 18 are. These additional locking points 18 each have a sliding surface 19 and a blocking surface 20, which has a pin 15 shown in FIG of the bolt 5 correspond.

The action of mortise lock 1 is as follows:

In Figure 1, the bolt 5 is shown with complete bolt closure. The lock cylinder bit 31 lies on the slide 30 of the slide 4 on. When the key is moved in a clockwise direction, the Slider 4 moved up in the image plane. the slide 4 with its elongated holes 9 and 11 on the attached to the lock plate Pin 8 or on the fixed to the lock plate bush 10 is guided. In the upper area of the slider 4 is on a spring cam 27 (Figure 3) a spring 36 attached, the other end struck on the socket 10 is. The spring 36 is thus tensioned. the displacement path being dimensioned in this way is that the upper free end of the slide 4 at the end of the displacement with a locking cam 37 in a latch 26 of the locking lever 6 borders. The locking cam 37 slides in an elongated hole 38 of the Lock plate 2.

Inference is made during this displacement process of the slide 4 of the bolt 5. wherein the pin 15 arranged on the bolt 5 the lower longitudinal edge 33 of the slot 14 in its end right lower position slides.

With a further pivoting movement of the lock cylinder bit in the The lock cylinder bit swings to the right in the image plane towards the lower one free end of the release lever 7, this against the force of the tension spring 39 swings out. The tension spring 39 is on the one hand with the Lock plate connected pin and on the other hand on a spring cam 28 of the trigger lever 7 mounted.

In this situation, the mortise lock is, so to speak, for the locking tour "armed". This situation is shown in Figure 2.

With a subsequent movement of the lock cylinder bit 31 in a left-turning Meaning the lock cylinder bit 31 runs against the lower free End of the release lever 7 and moves it upward in the image plane. The trigger lever 7 slides with its slot 22 in one with the Lock plate connected pin 23. During this movement of the release lever 7 runs the edge 40 of the release lever 7 against the lower edge 41 of the short leg 24 of the locking lever 6 and pivots this around the pin 42 so that the latch 26 the locking cam 37 of the slide 4 releases and the slider 4 suddenly down in the image plane soars. Up to this triggering process, the locking lever 6 is activated by a arranged on the bushing 10 spring 43 in its clockwise position held.

During the sudden downward movement of the slide 4, the slides on the bolt 5 arranged pin 15 from one end position to the other. i.e. he runs over the sliding surfaces 19 of the additional rest areas 18. Should the latch 5, however, must be prevented from excluding the latch. is only a limited one Push bar 5 back to the next one additional stop 18 possible: the bolt 5 remains in this Position blocked. A complete deadlock can only be reached by pressing of the slide 4 possible in the manner described above.

As can be seen from FIG. 1. the pin 15 of the bolt 5 slides in one Slot 13 of the lock plate 2; the trigger lever 7 also has an elongated hole 12, which corresponds to the displacement of the elongated hole 22 is dimensioned larger in the eye 21 of the release lever 7.

The nut 34 and the trap 35 are only hinted at, theirs Function can be designed arbitrarily with reference to the invention.

Reference numerals

1

Mortise lock

2nd

Lock plate

3rd

Forend

4th

Slider

5

bars

6

Locking lever

7

Release lever

8th

Cones

9

Elongated hole in the slide

10th

Rifle

11

Elongated hole in the slide

12th

Elongated hole in the release lever

13

Elongated hole in the lock plate

14

slot

15

Pin on the bolt

16

end stop

17th

end stop

18th

additional rest stops

19th

Sliding surface

20th

Restricted area

21

Eye of the release lever

22

Elongated hole in the eye of the release lever

23

Cones

24th

short leg of the locking lever

25th

long leg of the locking lever

26

Trap in the locking lever

27

Feather cams

28

Feather cams

29

Cones

30th

Slider

31

Lock cylinder bit

32

upper long side of the slot

33

lower long side of the slot

34

Nut

35

Cases

36

feather

37

Locking cams

38

Long hole

39

feather

40

Edge

41

Edge

42

Cones

43

feather

Claims (4)

1. A mortise lock comprising a bolt (5) guided by a slide (4) in the lock housing, where the slide (4) which is slidable by means of a key ward or locking cylinder ward (1) nearly parallel to the forend (3) has a slot (14) running nearly diagonally to the forend (3) for the work of a top (15) disposed on the bolt (5) and at each end of the slot there are holding positions (16, 17) for the top (15) with total forward and total back locking of the bolt, characterised in that between the holding points (16, 17) at the end of the slot (14) there are in addition one or more holding points (18) which each have a sliding area (19) allowing the forward locking of the bolt and a blocking area (20) stopping the back locking of the bolt.
2. A mortise lock according to claim 1, characterised in that the additional holding points (18) are disposed on the top long side (32) of the slot (14).
3. A mortise lock according to claims 1 and 2, characterised in that two further holding points (18) are disposed between the holding points (16, 17) at the end of the slot.
4. A mortise lock according to claims 1 to 3, characterised in that the bottom long side (33) of the slot (14) is formed as a sloping-straight running area.

Images