EP3569801B1 - Lock, in particular panic lock - Google Patents

Description

The invention relates to a lock. The lock is designed in particular for installation in a door leaf. It is particularly preferably a panic lock.

The locks considered here have in particular a lock case and a faceplate and are designed for installation in a door leaf. A door handle is usually connected via a nut of the lock. The latch of the lock can be withdrawn by operating the door handle. Furthermore, previously known locks can be designed to accommodate a cylinder lock with a driver. By turning the driver, a bolt of the lock is locked and retracted.

When the lock is designed as a "panic lock", a mechanism is provided within the lock that enables the bolt to be drawn in by turning the nut (using the door handle). For this purpose, a panic lever is provided within the lock, for example, which converts the rotary movement of the nut into a translational movement of the bolt.

Furthermore, the state of the art knows a change mechanism within the lock. This interchangeable mechanism allows the latch to be withdrawn by turning the driver. For example, a change element (also: lower change) is provided that is lifted by the rotating driver. The change element in turn actuates an upper change or the nut via a nut arm in order to pull back the latch.

If the driver is in an unfavorable position, panic actuation can result in the interchangeable element guided on the bolt shank blocking the driver. In this way, complete retraction of the bolt can be blocked in the event of a panic.

EP 0 795 664 A2 shows a mortise lock in which the bolt return takes place by pre-tensioning a slide, which is held in a trap by means of a locking lever during the bolt return so that a sudden bolt locking occurs after the lock is released. The mortise lock is designed in particular as a tubular frame lock.

DE 299 10 758 U1 shows a lock in which the change is guided on a predetermined path in such a way that a translatory-rotary movement occurs when the lock bit is turned, which represents a geared coupling between the pure rotary movement of the lock bit and the pure translational movement of the latch across the mortise lock. A displacement element is provided which, when the handle follower is actuated, moves into the return path of the return path lock on the change. This prevents the return path lock from returning, ie the switch cannot return to its basic position. This also keeps the trap in its retracted position as long as the return path of the reverse path lock remains closed.

It is an object of the present invention to specify a lock, in particular a panic lock, which enables safe and low-maintenance operation of a door.

The problem is solved by the features of the independent claim. The dependent claims relate to advantageous configurations of the invention.

Thus the task is solved by a lock. The lock is designed in particular as a mortise lock. Furthermore, the lock is designed in particular as a panic lock. The lock preferably comprises a lock case.

The lock includes a trap. In particular, the trap comprises a trap head connected to a trap shaft. The latch shaft is guided in a linearly movable manner inside the lock, in particular in the lock case.

The lock also includes a bolt. The bolt can be moved along a bolt axis to lock the lock. In particular, the bolt comprises a bolt head which is firmly connected to a bolt shaft. The bolt shaft is guided in the lock case so that it can move linearly along the bolt axis. This allows the bolt to lock the door to be locked out and retracted to unlock the door.

Furthermore, the lock comprises a rotatable driver or is designed to receive a rotatable driver. This rotatable driver is in particular stored in the lock case or part of a cylinder lock. A cylinder lock receptacle is also particularly preferably provided. This cylinder lock holder is used to hold a cylinder lock in the lock case. The cylinder lock is in particular connected or connectable to an in particular electromechanical knob. The axis of rotation of the driver is in particular perpendicular to the bolt axis. Of the The driver does not necessarily have to be operated with a key; but can also be turned in some other way, in particular by means of a knob. In normal operation of the lock, the bolt is locked and retracted by turning the driver. This movement can be single-turn or multi-turn. The cylinder lock can be used in the lock or can be inserted into the lock. The lock can thus include the cylinder lock or be connectable to the cylinder lock.

The lock particularly preferably also comprises a tumbler. This tumbler is actuated by the driver, preferably raised, whereby a blocking of the bolt is canceled.

The lock also includes an end stop. The end stop is in particular "bolt-proof". This means that the end stop is part of the bolt or is arranged on the bolt and does not move relatively, but rather together with the bolt. The lock also includes an interchangeable element. The change element can be actuated by the driver. In particular, the rotating driver can move the interchangeable element linearly, in particular lift it. The interchangeable element is designed to retract the trap. In the context of the invention, it is provided in particular that the interchangeable element is arranged to be rotatable about an alternate rotation axis perpendicular to the bolt axis. This alternating axis of rotation basically enables the interchangeable element to rotate in two directions. In one direction of rotation, the interchangeable element rests against the end stop described. In the opposite direction of rotation, the interchangeable element can be rotated against the force of an interchangeable spring.

The interchangeable spring enables the interchangeable element to be rotated or pivoted. This is especially true in the following process of Advantage: As described, the end stop is locked to the bolt, which means that the interchangeable element is forcibly guided by the bolt. If the driver is now in an unfavorable position, for example at three o'clock or nine o'clock, and the bolt is not drawn in by turning the driver, but in some other way (for example via the panic function), the interchangeable element strikes the driver. As a result, the bolt retraction would be blocked without the alternate spring described. The interchangeable spring provided here, however, enables the interchangeable element to evade. During this evasive action, the interchangeable element is rotated against the force of the interchangeable spring.

An unfavorable position of the driver can result in particular if the driver can be rotated by a knob, in particular an electromechanical knob.

According to the invention it is provided that the interchangeable spring is supported on the interchangeable element and on the bolt. In this embodiment, the interchangeable spring is therefore not attached to or supported on the lock case, but moves together with the interchangeable element and the bolt.

It is provided in particular that the exchangeable spring is fastened to the exchangeable element and rests against the end stop which is fixed to the bolt. For this purpose, it is particularly preferably provided that the interchangeable spring is designed as a leaf spring.

Furthermore, it is particularly preferably provided that the interchangeable element has a recess. The end stop protrudes into this recess. The exchangeable spring is arranged in this recess. The end stop is preferably located between a wall of the recess and the alternating spring, in particular designed as a leaf spring. In one direction of rotation, the wall of the recess strikes the end stop. In the opposite direction of rotation, movement is possible to a certain extent, since the end stop rests against the exchange spring and deforms it elastically.

The position of the alternating axis of rotation is preferably above the bolt. The position "above the bolt" is defined by the usual installation position of the lock. Alternatively, it can also be defined that the alternating rotation axis is located on the side of the bolt facing the latch.

Furthermore, it is preferably provided that the interchangeable element is guided in a linearly displaceable manner on the interchangeable axis of rotation via a link guide.

For this purpose, it is provided in particular that the alternating axis of rotation is formed by an extension fixed to the lock case. This extension protrudes into a corresponding groove of the interchangeable element, which results in the link guide. This link guide enables both the linear displaceability and the rotatability of the interchangeable element. The linear displaceability is provided in particular for the regular function of the interchangeable element. The change element is lifted linearly by turning the driver and actuates an upper change or a nut arm.

The interchangeable element described here is preferably a rigid component. In particular, the interchangeable element is constructed in one piece. The interchangeable element can also be composed of several components. It is crucial, however, that the interchangeable element is preferably a rigid component and therefore cannot be moved relative to one another Components is composed. Any other mechanism that is necessary to actuate the latch, for example the upper changeover or actuation via a nut arm, is preferably provided in addition to the changeover element described and is preferably located above the bolt.

As already described, it is preferably provided that the interchangeable element is arranged for direct actuation of a follower arm of the lock. The interchangeable element thus touches and actuates a nut arm directly without intermediate elements. The nut is rotated by operating the nut arm. In turn, by turning the nut, the trap can be withdrawn in a conventional manner.

The lock preferably comprises a panic lever. The panic lever can be operated by a nut arm and is arranged to retract the bolt. In particular, the panic lever is rotatably attached in the lock case.

Furthermore, it is preferably provided that the lock comprises a tumbler lever. The guard locking lever can also be actuated by a nut arm. This can in particular be the same nut arm that actuates the panic lever. The tumbler lever is provided for releasing, in particular for lifting, the tumbler.

The guard locking can block the bolt. The tumbler can be moved, in particular, between a release position in which the tumbler allows the bolt to move into the retracted position, and a locking position in which the tumbler blocks the bolt.

Usually, the guard locking is lifted by the rotating driver during normal operation of the lock. In the event of a panic, the guard locking can be raised using the guard locking lever operated by the follower.

In particular, the tumbler can comprise an actuating surface for moving the driver. When the guard locking device moves from the release position into the blocking position, the guard locking device can move the driver. In particular, a movement of the tumbler from the release position into the locked position of the driver is moved by the tumbler in the direction of the interchangeable element.

It may be that the bolt comprises a sliding surface, the sliding surface serving to move the driver when the bolt is moved. In particular, the sliding surface serves to move the driver into its retracted position when the bolt is moved. In this case, the sliding surface can preferably move the driver in the direction of the interchangeable element.

The sliding surface can in particular serve to move the driver out of engagement with the bolt. A dead center can be avoided by the sliding surface. The sliding surface can move the bolt in such a way that the driver does not subsequently hit the bolt in the direction of the movement axis of the bolt during the movement of the bolt into the retracted position.

The actuating surface and the sliding surface are particularly preferably coordinated with one another. It can thus be the case that the actuating surface is designed to initially move the driver in such a way that the driver can then be moved through the sliding surface.

As already described, the bolt can, for example via the panic function, independently of a rotary movement of the driver to be withdrawn. In this case, if the driver is in an unfavorable position, the interchangeable element can hit the driver and be twisted against the force of the alternating spring. This rotation of the interchangeable element and the restoring force of the interchangeable spring results in a force on the bolt in the locking direction via the end stop. This force acting on the bolt in the direction of exclusion is undesirable, especially in the event of panic. Because of this, an elastic latching arrangement is preferably provided in the lock. The latching arrangement is designed to hold the bolt in its retracted position. In particular, the latching arrangement is designed and arranged to hold the bolt in its retracted end position. Particularly preferably, the bolt only engages in the locking arrangement when it is reached or shortly before reaching its retracted end position.

The latching arrangement preferably comprises an elastic latching element. The elastic latching element is designed in particular as a latching spring. Furthermore, the latching arrangement preferably comprises a latching surface resting on the latching element in the latched state. In particular, it is provided that the locking element is fixed to the lock case. The latching surface on the bolt, in particular on the bolt shank, is designed accordingly. When the locking arrangement is released, the locking surface presses on the elastic locking element. As a result, the latching element is elastically deformed and the latching arrangement is released.

Furthermore, it is preferably provided that an actuating surface is provided on the same element (in particular the bolt shank) on which the latching surface is also formed. When the locking arrangement engages, the actuating surface presses on the locking element. As a result, the latching element is deformed and the latching arrangement engages.

In particular, the latching surface and the actuating surface are two surfaces of the bolt shaft which are angled to one another, preferably at an acute angle.

It is preferably provided that the elastic latching arrangement and the interchangeable spring are designed in such a way that the maximum force acting on the latch due to the interchangeable spring is not sufficient in the locking direction to release the latching arrangement. The latching arrangement should not be released until the bolt is moved again in the locking direction, for example by rotating the driver.

Fig. 1

eine schematische Ansicht eines erfindungsgemäßen Schlosses gemäß einem Ausführungsbeispiel,

Fig. 2

Details des erfindungsgemäßen Schlosses gemäß dem Ausführungsbeispiel,

Fig. 3

Details eines beispielhaften Schlosses,

Fig. 4

Details des erfindungsgemäßen Schlosses gemäß dem Ausführungsbeispiel bei einer Betätigung der Panikfunktion,

Fig. 5

Details aus Fig. 4 in einer Rückansicht, und

Fig. 6

Details aus Fig. 4.

The invention will now be described in more detail using an exemplary embodiment. Show:

Fig. 1

a schematic view of a lock according to the invention according to an embodiment,

Fig. 2

Details of the lock according to the invention according to the embodiment,

Fig. 3

Details of an exemplary castle,

Fig. 4

Details of the lock according to the invention according to the exemplary embodiment when the panic function is actuated,

Fig. 5

Details from Fig. 4 in a rear view, and

Fig. 6

Details from Fig. 4 .

The following is based on the Fig. 1 , 2 , 4 to 6 an embodiment of a lock 1 is described in detail. The lock 1 is designed as a mortise lock with a panic function (as a panic lock).

the Figs. 1 to 6 show selected details of the lock 1. In Fig. 3 a modified exemplary variant of the lock 1 is shown.

As the Figs. 1 to 6 show, the lock 1 comprises a lock case 2 and a faceplate 3. The lock case 2 forms the housing of the lock 1 and is used to accommodate or store the individual components.

The lock 1 comprises a latch 4. The latch 4 comprises a latch shaft 6 which is mounted in the lock case 2 such that it can move linearly. Furthermore, the latch 4 comprises a latch head 5 which is connected to the latch shaft 6.

Furthermore, the lock 1 comprises a socket 7. A door handle is connected via the illustrated square of the socket 7. The nut 7 is rotated by pressing the door handle. Of course, a door knob or similar can also be used instead of the door handle.

The nut 7 comprises several nut arms. These nut arms are rotated together with the nut 7. For the functions relevant here, a first nut arm 8, a second nut arm 9 and a third nut arm 10 are described in detail.

The lock 1 further comprises a bolt 11. The bolt 11 is composed of a bolt shaft 13 and a bolt head 12 Bolt 11 is arranged in the lock case 2 so that it can be moved linearly along the drawn bolt axis 30 for locking and drawing in.

A tumbler 14 is also provided. The tumbler 14 locks the bolt shaft 13 and thus the entire bolt 11 in a blocking position. The tumbler 14 is in Figure 1 in the locked position. The tumbler 14 can be moved into a release position against the force of a tumbler spring 33 (see Fig. Fig. 5 ). In the release position, the tumbler 14 allows the bolt 11 to move. In particular, the tumbler 14 is in the released position out of engagement with the bolt. In the locked position, the tumbler 14 is in engagement with the bolt 11.

If the driver is 17 in Figure 1 If the driver is rotated counterclockwise, the driver 17 arrives at an interaction surface 35 of the tumbler 14. When the driver 17 is rotated further, the tumbler 14 is shifted from the locked position into the released position. A further rotation of the driver 17 moves the bolt 11 out of the lock case 2.

If the bolt 11 is in the moved out position, the tumbler 14 is moved into the locking position by the tumbler spring 33.

The lock 1 further comprises a receptacle 18. A cylinder lock with a rotatable driver 17, for example, can be inserted into the receptacle 18. The driver 17 can be rotated via the cylinder lock.

The lock 1 further comprises an interchangeable element 20. The interchangeable element 20 can be rotated or pivoted about an interchangeable axis of rotation 21. The interchangeable axis of rotation 21 is formed by an extension 22 fixed to the lock case. The extension 22 extends in a groove in the interchangeable element 20, resulting in a link guide 23 for the linear displaceability of the interchangeable element.

The socket 7 is in engagement with the latch 7 via the first socket arm 8. When the socket 7 is rotated, the first socket arm 8 pulls the latch 4 back.

The interchangeable element 20 rests on the second socket arm 9 of the socket 7. When the driver 17 rotates, the interchangeable element 20, guided by the link guide 23, rises in a linearly movable manner. As a result, the nut 7 rotates via the second nut arm 9 and, as a result, the latch 4 is withdrawn via the first nut arm 8. The driver 17 is in the Figure 1 rotated clockwise.

The lock 1 further comprises a panic lever 15 and a tumbler lever 16. The panic lever 15 is particularly shown in the rear view in FIG Fig. 5 good to see.

The panic lever 15 and the tumbler lever 16 are actuated via the third nut arm 10 and pivoted in the process. The tumbler lever 16 lifts the tumbler 14. The panic lever 15 pulls the bolt 11 in.

With this panic actuation, if the driver 17 is in an unfavorable position, the interchangeable element 20 may strike the driver 17. This constellation is in the Fig. 4 , 5 and 6th shown in detail.

In order to enable a complete retraction of the bolt 11 even in this unfavorable position of the driver 17, an elastic deflection of the interchangeable element 20 is provided. Show this especially the Figures 2 and 3 two different arrangements of the interchangeable element 20:
According to the two Fig. 2 and 3 an end stop 24 is provided on the bolt 11, in particular on the bolt shaft 13. The change element 20 rests against this end stop 24. In a direction of rotation about the alternating axis of rotation 21, the interchangeable element 20 can yield against the force of an alternating spring 26. The variants in the Fig. 2 and 3 differ in the arrangement of these alternating springs 26.

According to Fig. 2 (and according to the Fig. 1 and 4 to 6) the interchangeable element 20 has a recess 25. The end stop 24 protrudes into this recess 25. The interchangeable spring 26, designed as a leaf spring, is attached to the interchangeable element 20 and also extends into this recess. The end stop rests against the interchangeable spring 26.

In the exemplary variant according to Fig. 3 the interchangeable spring 26 is supported on the one hand on the lock case (or an element fixed to the lock case) and on the other hand on the interchangeable element 20. Here, the interchangeable spring 26 is arranged in particular in the area of the alternating axis of rotation 21.

Furthermore, the lock 1 preferably comprises a latching arrangement 40. The latching arrangement 40 shown here comprises a latching element 41. The latching element 41 is arranged fixed to the lock case. The latching element 41 is designed here as a latching spring.

The latching arrangement 40 further comprises a latching surface 42 and an actuating surface 43. The latching surface 42 and the actuating surface 43 are formed on the bolt shaft 13. The latching surface 42 and the actuating surface 43 are at an acute angle to one another.

The tumbler 14 has an actuating surface 32. When the tumbler 14 moves, the actuating surface 32 moves the driver 17 from the release position into the blocking position in the direction of the interchangeable element 20. This movement can be provided in particular when the bolt 11 moves out of the lock case 2.

The lock 1 according to the invention is also designed such that when the bolt 11 moves into the retracted position, the driver 17 is moved away from a position in which the driver 17 is in engagement with the bolt 11. This position can be approx. An 11 o'clock position Figure 1 correspond. In a position of the driver 17, which results from the movement of the driver 17 through the actuating surface 32, the driver 17 arrives at a sliding surface 31 of the bolt 11 when the bolt 11 moves into the retracted position. The sliding surface 31 is designed in such a way that that the driver 17 is moved further in the direction of the interchangeable element 20. As a result, the driver 17 comes out of engagement with the locking shaft 13. This corresponds approximately to a 10 o'clock position of the driver in Figure 1 . The locking shaft 13 can now move past the driver 17. The driver 17 is now in a position in which the driver moves the interchangeable element 20 elastically against the force of the interchangeable spring 26.

If the driver 17 continues counterclockwise in Figure 1 moved so that the driver 17 comes out of interaction with the interchangeable element 20, the interchangeable element 20 moves back into the starting position of the interchangeable element 20 by the force of the interchangeable spring 26. In the starting position, the driver 17 can actuate the latch 5 through the contact with the actuator surface 34 via the interchangeable element 20.

List of reference symbols

1

Lock, especially panic lock

2

Lock case

3

Faceplate

4th

Cases

5

Trap head

6th

Trap shaft

7th

nut

8th

first nut arm

9

second nut arm

10

third arm of nuts

11

bars

12th

Bolt head

13th

Bolt shank

14th

Guard locking

15th

Panic lever

16

Guard locking lever

17th

Carrier

18th

recording

20th

Interchangeable element

21

Interchangeable axis of rotation

22nd

Appendix

23

Scenery tour

24

End stop

25th

Recess

26th

Exchange spring

30th

Latch axis

31

Sliding surface

32

Operating area

33

Tumbler spring

34

Actuator surface

35

Interaction surface

40

Locking arrangement

41

Locking element, in particular locking spring

42

Locking surface

43

Operating area

Claims (13)

1. A lock, in particular anti-panic lock (1), comprising:

   • a latch-bolt (4),

   • a dead-bolt (11), which, for blocking the lock (1), is displaceable along a dead-bolt axis (30),

   • a terminal abutment (24), in particular integral with the dead-bolt,

   • a rotatable catch (17) or a reception (18) for the catch (17) for displacing the dead-bolt (11) along the dead-bolt axis (30), and

   • a change element (20) actuatable by the catch (17) for retracting the latch-bolt (4),

   • wherein the change element (20) is rotatable about a change axis of rotation (21), which in particular is vertical to the dead-bolt axis (30), in the one direction of rotation rests at a terminal abutment (24) and in the opposite direction of rotation is rotatable against the force of a change spring (26),

   characterized in that
   the change spring (26) is supported at the change element (20) and at the dead-bolt (11).
2. The lock according to claim 1, wherein the change spring (26), preferably formed as a leaf spring, is attached to the change element (20) and rests at the terminal abutment (24).
3. The lock according to claim 2, wherein the terminal abutment (24) projects into a recess (25) of the change element (20) and the change spring (26) is disposed in said recess (25).
4. The lock according to any of the preceding claims, wherein the change axis of rotation (21) is disposed on the side of the dead-bolt (11) facing the latch-bolt (4).
5. The lock according to any of the preceding claims, wherein the change element (20) is linearly displaceably guided at the change axis of rotation (21) via a coulisse guide (23).
6. The lock according to any of the preceding claims, wherein the change axis of rotation (21) is formed by an extension, which is integral with the lock casing.
7. The lock according to any of the preceding claims, wherein the change element (20) is a rigid component, preferably an integral one.
8. The lock according to any of the preceding claims, wherein the change element (20) is disposed for direct actuation of a follower arm (9) of the lock (1).
9. The lock according to any of the preceding claims, comprising an anti-panic lever (15), which is actuatable by a follower arm (10), for retracting the dead-bolt (11) and/or a tumbler lever (16)), which is actuatable by a follower arm (10) for detaching, preferably lifting, of a tumbler (14) blocking the dead-bolt (11), wherein in particular the tumbler (14) comprises an actuating surface (32) for moving the catch (17).
10. The lock according to any of the preceding claims, wherein the dead-bolt (11) comprises a slide surface (31), wherein the slide surface (31) serves for moving the catch (17) during a movement of the dead-bolt (11), in particular for moving the catch (17) during a movement of the dead-bolt (11) to the retracted location thereof out of engagement from the dead-bolt (11).
11. The lock according to any of the preceding claims, comprising an elastic latching assembly (40) for retaining the dead-bolt (11) in the retracted location thereof.
12. The lock according to claim 11, wherein the latching assembly (40) comprises an elastic latching element (41), preferably formed as a latching spring, and a latching surface (42) resting at the latching element (41) in the latched condition.
13. The lock according to any of the preceding claims 11 or 12, wherein the elastic latching assembly (40) and the change spring (26) are formed such that the maximum force acting on the dead-bolt (11) in the protracting direction by means of the change spring (26) is not sufficient for undoing the latching assembly (40).

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