EP3426867B1 - Lock - Google Patents

Description

The invention relates to a lock according to the preamble of claim 1.

Such locks are already known. The DE 2417322 A shows a latch bolt which has a locking lever and a trigger slide. The locking lever is pushed together with the latch in the direction of the striking plate and carries the trigger slide with it. If the latter comes into contact with the striking plate, the locking lever can be pivoted on a slide slope of the release slide that is effective as a result, into a position in which it no longer engages behind the edge of the passage opening in the faceplate and the latch continues to advance. The design provides that the trap is rotatably guided in a tube and can therefore be used on the left and right.

The EP 0431369 A2 shows a case in which the locking element is pivotally mounted in the case and has two locking lugs which engage behind the faceplate. The first locking lug is released by engaging a release projection on the striking plate, as a result of which the locking element is pivoted and the latch can move into the first position. As a result, the latch is further pre-locked by the action of the latch spring and the second locking lug becomes effective.

From the DE 102011089418 A1 is a trap according to the function of the EP 0431369 A2 is known in which it is provided that a hump is attached to the pivotable trigger, which should make manipulation difficult.

The DE 202011001842 U1 shows a latch bolt corresponding to that mentioned above DE 102011089418 A1 , The focus here is on the use of a reversible trap.
The DE 202012009802 U1 discloses a mortise lock with a lock housing, a latch cooperating with a striking plate and a bolt. On the trap is a release device for interacting with the striking plate intended. The triggering device is coupled to the bolt in such a way that when the triggering device interacts with the striking plate, a bolt triggering lever is actuated to release the bolt and to subsequently extend the bolt from the lock housing. The release device has a displaceable striking plate release lever for interacting with the striking plate and an articulated lever. The striking plate release lever causes a pivoting of the articulated lever when shifting due to the interaction with the striking plate and leads to a linear adjustment of the bolt release lever and to the extension of the bolt.

A disadvantage of the aforementioned prior art is that the trigger mechanism is comparatively small and assembly is therefore complex. In addition, the filigree designs result in inaccuracies and errors in their function after a period of time and associated use.

From the DE 202015000106 U1 An automatic lock has become known according to the preamble of the main claim, in which a trigger located on the back of the latch is part of a shaft which runs coaxially to the direction of displacement and which engages with a locking element on a drive rod slide and releases it in the activated position of the trigger. Due to this configuration, the design of the trap is complex. It can be used with a multi-point lock.

It is also disadvantageous in all of the above-mentioned configurations that when the catches meet on the striking plate, the latches lock independently of the need situation. As far as only the trap occurs according to its trap function, the door can be opened remotely, for example via an electric door opener. However, if the lock is constructed in the manner of a latch bolt lock, the latch moves into its bolt position after the trigger is actuated and is secured against being pushed back. It is therefore not possible to combine an electric door opener and a latch bolt lock. If, in addition to the latch, other bolts, e.g. in secondary lock boxes, remote control is only possible with an electric lock drive. There is therefore a need for a lock, the automatic function of which can be switched on or off as required.

This is in the EP 0682167 B1 a change is provided that acts on the latch via a coupling to the follower. For this purpose, the follower has a separate lever which, as soon as the follower is set in motion via the change, shifts the latch into its retracted position. So that the latch can be permanently held in its retracted position, this mortise lock has a latch locking device which, as a pair, consists of a return path lock on the change with an associated lock stop mounted on the lock case, the lock stop entering the return path of the return lock relative to the movement possibilities of the change. to prevent the switch from returning to the home position on its way back. The lock stop consists of a two-armed lever, which is mounted as a rocker on the lock case and is moved by the lock bit of the lock cylinder into its locking position when rotating in the locking direction.

With this mortise lock, the latch is fixed by turning the follower nut until the latch has been brought into its retracted position and then activating the lock stop using the key. To do this, the key must be turned in the locking direction so that the lock stop with the assigned arm is moved into the return path of the return lock. Such a mortise lock has a complicated structure and cannot be used for doors with increased security requirements, since only one bolt and the latch are provided.

That in the DE 19748444 A1 The lock described has a latch which is mounted in a latch window of a faceplate. The trap can be withdrawn from a trap entry position, in which the largest part of the trap head lies in front of the faceplate, into a trap retraction position, in which the trap is completely drawn into the trap window. On the back of the faceplate is a latch lock in the form of a pitch circle disc, which can be switched back and forth between a locked position and a release position by rotating an axis of rotation, which latch lock can hold the latch in the closed position.

From the DE 4015881 C2 a lock is known in which the trap can be blocked in a trap entry position by means of a lever arm.

The DE-PS 691398 discloses a latch lock in which the latch is retractable via a knob to the extent that a pin connected to the knob, which acts on the latch on the latch tail in a control slot, springs behind a locking projection, so that the latch can only come forward again by actuating the knob ,

The DE 8909119 U1 shows a lock in which the latch can be retracted by a difference by changing the key by a key range than by pressing the handle. Within this differential range, a locking means for the latch can be brought into locking engagement and holds the latch in the retracted position.

The DE 102007044324 B3 has the subject of a lock which, for the purpose of locking the latch, provides a locking element which provides an actuating section to be actuated from the faceplate and a locking section engaging the latch tail.
The EP 0801193 B1 shows a mortise lock with a latch, which has a locking bolt in the latch head. The locking bolt can be moved behind the faceplate when the latch is retracted, thereby preventing the latch from advancing.

In contrast, the operation of the mortise lock is according to EP 0410122 B1 Relatively simple, since the trap drawn in via the change is locked by simply pressing a pressure bolt that is accessible from the faceplate of the mortise lock. However, this mortise lock has a relatively complex structure, since in particular the change must also be in two parts. This mortise lock is not compatible with the requirements for secure locking of a multi-point lock.

It is an object of the invention to achieve a safe triggering with little manufacturing effort and to remedy the aforementioned shortcomings.

To solve the invention provides that the trigger is a two-armed pivot lever, the first arm is formed by a probe arm and the second arm Forms blocking element for the drive rod slide and is received in the slotted trap tail.

A further development provides that the vertical extension of the probe arm corresponds to approximately 50% of the trap height. As a result of the measure, the probe arm achieves a comparatively large dimension in relation to the trap and therefore also interacts with a frame-side trap entry opening when it is dirty, has an insert that is not exactly seated, or has a filing nose. A filing nose is a central projection in the trap opening, on which the trap is supported in the closing position and which can be adjusted by means of a file to adapt a desired pressure. These filing noses are mounted centrally in the trap opening, which can cause the trigger to reach past the filing nose, in particular after a certain period of time and the associated shifting of the position of the trap within the trap opening. The trigger can also be easily integrated and stored in the trap using this combination of features.

A special embodiment provides that the espagnolette slide can be fixed in its unlocked position via the plug-in wheel. This measure allows the latch to be fixed in a retracted position using the key and remains ineffective, for example if the door equipped therewith is to remain unlocked in a daytime operation. This function can only be performed by an authorized person using a key provided to him.

It is advantageous if the pressure piece can be fixed in a latch retraction position determined via the plug-in wheel.

It can also be provided that the plug-in wheel engages under the pressure piece in a blocking manner when the latch is retracted via a follower.

A further embodiment provides that the pressure piece acts on the latch tail via a pivotable latch lever.

Fig. 1

den Haupschlosskasten von oben im unverriegelten Zustand,

Fig. 2

den Hauptschlosskasten, wie in Fig. 2 ohne Treibstangenschieber von unten,

Fig. 3

den Hauptschlosskasten nach Fig. 1 in einer isometrischen Darstellung in verriegelter Stellung ohne Stulpschiene,

Fig. 4

den Hauptschlosskasten nach Fig. 2 in einer isometrischen Darstellung mit vorverlagerter Falle in unbetätigtem Zustand, ohne Stulpschiene,

Fig. 5

eine isometrische Darstellung des Treibstangenschiebers,

Fig. 6

eine Einzelteildarstellung der Falle in einer Draufsicht,

Fig. 7

einen Schnitt der Falle entlang der Linie VII-VII in Fig. 6,

Fig. 8

eine Detaildarstellung des Zusammenwirkens des Steckrades mit dem Treibstangenschieber und

Fig. 9

eine Detaildarstellung des Steckrades und des Druckstücks entsprechend der in Fig. 8 dargestellten Lage.

Further advantageous configurations emerge from the drawings. It shows:

Fig. 1

the main lock case from above in the unlocked state,

Fig. 2

the main lock case, as in Fig. 2 without espagnolette from below,

Fig. 3

the main lock case Fig. 1 in an isometric view in the locked position without faceplate,

Fig. 4

the main lock case Fig. 2 in an isometric representation with the latch forward in the unactuated state, without faceplate,

Fig. 5

an isometric representation of the drive rod slide,

Fig. 6

a partial view of the trap in a plan view,

Fig. 7

a section of the trap along the line VII-VII in Fig. 6 .

Fig. 8

a detailed view of the interaction of the plug-in wheel with the drive rod and

Fig. 9

a detailed view of the plug-in wheel and the pressure piece according to the in Fig. 8 shown location.

At the in FIGS. 1 to 3 Main lock case 1 shown, a latch 2 and a bolt 3 are provided. To actuate the lock, a locking cylinder (not shown) is provided in addition to a follower 4, which sits in a locking cylinder receptacle 5 and interacts with a plug-in wheel 6, 7.

The trap 2 contains a trigger 8. The trigger 8 is designed as a two-armed swivel lever, the first arm 9 of which is formed by a feeler arm 10 and the second arm 11 of which forms a blocking element 12 for a drive rod slide 13 and is received in the slotted trap tail 14. The pivot lever is pivotally mounted about an axis 15 and a spring 16 generates a restoring force. It can be seen that the vertical extension of the probe arm 10, in Fig. 7 referred to as dimension 17, corresponds to more than 50% of the trap height 18. The width 20 of the slot 19 for receiving the arm 11 is closely matched to the arm 11. The interaction is in connection with the FIGS. 3 and 4 seen. Starting from an unlocked and partially opened sash, this gets into Fig. 4 Lock shown with the trigger 8 to rest on a striking plate edge of the associated frame. This can also be an AT piece or an electric door opener. If the trigger 8 in the Fig. 7 pivoted counterclockwise, then the arm 11 is completely immersed in the slot 19. As a result, the locking element 12 is displaced from the displacement area of the end edge 21 of the locking tab 22 of the drive rod slide 13 and releases it. The end of the drive rod slide 13 is, as in the Fig. 5 evident U-shaped and the trap tail engages in the space between the Espagnolette slide 13 and the locking tab 22, which is spaced from the flat control surface 23 of the espagnolette slide 13 via a shoulder 24. The control tab is fastened as a rectangular sheet metal section to the shoulder 24, which is raised above the control surface 23. The drive rod slide 13 has a further locking edge 25, which is arranged in relation to the longitudinal edges along which the drive rod slide 13 is displaceable, corresponding to the end edge 21. Because of this arrangement, the locking element 12 can interact with the locking edge 25 instead of the front edge 21 in a latch 2 rotated through 180 °.

If the fixation of the drive rod slide 13 is removed, this is acted upon by gravity or spring force in the Fig. 2 shifted down. A pin 27 of the bolt 3 engaging in the oblique slot 26 shifts the bolt from the lock case 1 into its locking position Fig. 3 ,

To unlock the lock again, you can use a handle that engages the follower to turn it clockwise ( Fig. 1 and Fig. 3 ) are pivoted, as a result of which the nut arm 28 engages under an edge 13 'of the drive rod slide 13 and moves upward. As a result of this upward movement, the bolt 3 is withdrawn into the lock case 1. The latch 2 is moved back via a latch lever 29 which is pivotally mounted on the lock ceiling about an axis 30. For this purpose, the nut arm 28 engages the latch lever 29 on the underside of the latch lever 29 and is pivoted clockwise as it moves upwards ( Fig.1 ).

Alternatively, the lock can be unlocked using a cylinder. The inner plug-in wheel 6 of the two-part plug-in wheel engages under the connecting rod slide 13 and displaces it upwards. The drive rod slide 13 engages with a rivet in an elongated hole recess of the pressure piece 31 and takes it upward during the upward movement. The pressure piece 31 comes to rest on the latch lever 29, the position of which was determined by the stop on the latch tail 14 and a latch spring attached to it. The latch lever 29 thereby pulls the latch 2 back. If the key operation is ended, the latch lever 29 is pivoted again counterclockwise, which is done by the nut springs 32, which act on the follower nut 4. The trap 4 enters the standby position before and the drive rod slide 13 is held in its open position via the locking element 12.

In addition to the functions for locking and unlocking described above, additional operating states can be set due to the arrangement. For a first variant, the unlocked lock is actuated with the key when the door is open, that is to say without the trigger 8 contacting a striking plate. The key is operated in the Fig. 2 clockwise and, in the case of a non-automatic lock, corresponds to pre-closing the bolt. In the in Fig. 2 Shown embodiment is pivoted clockwise under the drive rod slider 13 via the cylinder actuation with the key. For this purpose, it has a protruding support shoulder 33, as in Fig. 8 is made clear. A radius 34 is attached to the plug-in wheel 7, which engages under the support projection 33. The radius 34 changes into a flat 35. As a result of this measure, the connecting rod slide 13 cannot be moved downward and, when the trigger 8 is actuated, remains ineffective as a result of the engagement of the plug-in wheel, since the connecting rod slide 13 is fixed in its unlocked position via the plug-in wheel 7. The door having the lock can therefore come to rest against the frame and is only locked via latch 2. Therefore, the door can be operated remotely by using an electric door opener. The Fig. 9 shows the position of the alternating pressure piece 31 in the position of the locking cylinder Fig. 8 , The alternating pressure piece 31 is located in the swivel range of the upper plug-in wheel 6 and can slide past it along an edge 36. A change operation is still possible.

A further function of the lock is obtained if, with the door unlocked and partially open, that is to say without the trigger 8 coming into contact with a striking plate or the like, the handle is actuated and a key is actuated at the same time. As a result, the in Fig. 1 apparent position of the pressure piece 31 and the latch lever 29 can be reached. The Fig. 1 shows the lever follower in the unactuated state, in which the plug-in wheel 6 engages in the retracted case over the cylinder by pre-closing under the pressure piece raised over the follower nut 4. If the pressure piece 31 is fixed via the plug-in wheel 6, the follower 4 can return to its normal position. Due to the fact that the plug-in wheel 6 engages under the pressure piece 31 in a locking manner when a latch is retracted via a follower nut 4, the latch 2 can no longer advance over the faceplate and remains in the retracted position.

So that the trigger 8 remains ineffective. This switch position can be advantageous if the door is to remain unlocked for a short period of time and / or is pressed onto the frame anyway by a door closer.

A method of actuation therefore involves establishing an unlocked position of the drive rod slide, actuating the lock by means of the cylinder with or without actuating the trigger.

LIST OF REFERENCE NUMBERS

1

lock case

2

Cases

3

bars

4

follower

5

Lock cylinder intake

6

Steckrad

7

Steckrad

8th

trigger

9

poor

10

Probe arm

11

poor

12

blocking element

13

Driving rod slide

13 '

edge

14

catch tail

15

axis

16

feather

17

measure

18

fall height

19

slot

20

width

21

front edge

22

locking tab

23

control surface

24

approach

25

blocking edge

26

oblique slot

27

spigot

28

Nussarm

29

latch lever

30

axis

31

Pressure piece

32

Nuss springs

33

supporting extension

34

radius

35

flattening

36

edge

Claims (6)

1. Automatic lock for doors or the like, having a latch (2) which is subject to the action of a latch spring and carries an arresting element (12) for arresting a driving-rod slide (13) which is forced into its arresting position, wherein the driving-rod slide (13) controls at least one bolt (3) in the locked and unlocked position and wherein the driving-rod slide (13) is released by a trigger (8) of the arresting element (12), projecting on the lock-plate front side, and, as a result, at least one bolt (3) moves into the locking position, characterized in that
   the trigger (8) is a two-armed pivot lever, of which the first arm (9) is formed by a sensing arm (10), of which the second arm (11) forms an arresting element (12) for the driving-rod slide (13) and is received in the slotted latch bolt (14).
2. Automatic lock according to claim 1, characterized in that the vertical extension of the sensing arm (10) corresponds to at least 50% of the latch height (18).
3. Automatic lock, in particular according to the preamble to claim 1 or 2, characterized in that the driving-rod slide (13) can be fixed in its unlocking position by means of a plug wheel (7).
4. Automatic lock according to claim 3, characterized in that a handle element (31) can be fixed latch withdrawal position which can be determined by the plug wheel (6).
5. Automatic lock according to claim 3, characterized in that the plug wheel (6) engages with blocking effect beneath the handle element (31), with a latch (2) drawn back over a handle cam assembly (4).
6. Automatic lock according to claim 5, characterized in that the handle element (31) takes effect on the slotted latch bolt (14) by means of a pivotable latch lever (29).

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