EP2746506B1 - Trigger lock - Google Patents

Description

The invention relates to a switching mechanism, in particular for a mating box or a mortise lock, according to the preamble of claim 1.

Switch locks are usually used to close a door, which is provided as such with a non-closing mating box. Counter boxes usually have only one trap or Riegelauswerferfunktion and no own locking function. Therefore, doors that are provided with a mating box, usually locked with a switch lock in the upper door area. That from the DE 197 27 365 C1 Known switching lock has a designated there as a drive rod latch, which is guided in a multi-part latch guide. The bolt guide has a sleeve-shaped housing, which is arranged within a sleeve-shaped switching element. The switching element is spring-loaded via an axially acting coil spring. The switching element acts on radially displaceable locking slide, which are arranged in the housing and movable over the switching element. Overall, the known switching mechanism with its many individual components is relatively expensive.

A generic switch lock is already out of the US 2001/037665 A1 or from the US Pat. No. 3,582,122 known.

Object of the present invention is therefore to provide a switching mechanism available that ensures the necessary switching functions safely.

The above object is achieved according to the invention in a switching mechanism of the type mentioned by the features of claim 1.

According to the latching lever is designed such that the switching, that is, the movement of the latch bolt from the retreat position directly into the locking position is possible without a detection or latching of the latch bolt occurs in the pre-latching position. This is achieved structurally in that adjoining the latching opening of the latching lever is a bridging region of the latching lever for bridging the gap between the forend and the striking plate. At the same time, the locking lever at its free end following the bridging region has an insertion bevel for insertion of the locking lever in the opening of the striking plate. The length of the bridging region is thus deliberately selected such that the gap which normally occurs between the forend of the switching mechanism and the striking plate is bridged, which prevents the locking lever from swinging out during the upward movement of the latch bolt and latching at the forend. Only when the latch bolt is immersed in the maximum extent in the strike plate, a further pivoting of the locking lever from the lever holder is possible.

In a preferred embodiment of the invention, a lever receptacle for the latching lever is provided in the latch bolt, in which the latching lever is mounted. This is ultimately a slot-like recess in the latch bolt body. The storage of the locking lever in the lever holder and the formation of the locking lever as such is such that upon movement of the latch bolt from the pre-locking position in the retraction position, ie at a retraction of the latch bolt, the locking lever is automatically pivoted into the lever holder and thereby disengaged the bolt guide comes. In this way, ultimately results in an automatic reset of the locking lever in the lever holder into when the latch bolt is retracted. The pulling in can take place both via the pusher of the counter box or adjusting lock and when closing the door or the interaction of the latch bolt with the strike plate.

To determine the latch bolt in the pre-locking position, the locking lever on its Ausschwenkseite a locking recess for cooperation with a forend of the bolt guide. In this way, the locking lever can engage under the forend in the pre-locking position. It makes sense in this context, incidentally, that in the subsequent to the cuff lock sleeve of the bolt guide a passage opening for the locking lever is provided, which releases the forend and thus allows a secure grip under the cuff through the locking lever on the recess ,

Thus, the locking lever automatically pivoted back in the downward movement of the latch bolt in the lever holder, a ramp is provided at the top of the latching recess. This run-on slope cooperates with the upper peripheral edge of the cuff opening in the forend, which results in the latching lever being pivoted into the lever receptacle during the downward movement of the latch bolt.

Thus, the locking lever to ensure the switching function of the switching mechanism automatically extends after pivoting into the lever holder again to hold the latch bolt in the pre-locking position, it is provided that the locking lever is spring loaded. The spring load is preferably such that the locking lever is pivoted out of the lever receptacle. In this case, preferably acting on the Einschwenkseite the locking lever spring element is provided on the latch bolt. In the spring element may be a leg spring acting on the Einschwenkseite the locking lever, or for example, a coil spring, which is arranged for example in a corresponding bore of the latch bolt and also acts on the Einschwenkseite.

In the embodiment of the invention, the latch bolt is preferably spring-loaded for movement into the locking position, wherein the spring load is applied outside of the switching mechanism. Preferably, the spring load is generated in the switching mechanism associated mating box or mortise and exerted on the driving rod connected to the switching mechanism. Thus, it is in the switching mechanism according to the invention so that no acting in the direction of movement of the latch bolt springs are provided, which further simplifies the construction of the switch latch according to the invention.

In order to prevent manipulation of the switching mechanism according to the invention, corresponding stops are provided in the locking sleeve and the latch bolt, which only become effective after exceeding the locking position and prevent interaction, that the latch bolt can be pulled in the installed state of the switching mechanism on the face side of the bolt guide ,

Other features, advantages and applications of the present invention will become apparent from the following description of exemplary embodiments with reference to the drawing and the drawing itself. In this case, all described and / or illustrated features, alone or in any combination, the subject of the present invention, regardless of their Summary in the claims or their dependency.

Fig. 1

eine schematische Darstellung einer Schließeinrichtung mit einem Gegenkasten und einem Schaltschloss,

Fig. 2

eine vergrößerte Darstellung des Schaltschlosses aus Fig. 1,

Fig. 3

eine Darstellung der Einzelteile des Fallenriegels des Schaltschlosses aus Fig. 2,

Fig. 4

eine perspektivische Ansicht der einzelnen Bauteile des Fallenriegels unmittelbar vor dem Einbau,

Fig. 5

eine perspektivische Ansicht des zusammengesetzten Fallenriegels,

Fig. 6

eine perspektivische Ansicht der Riegelführung des erfindungsgemäßen Schaltschlosses,

Fig. 7

eine Ansicht der Riegelführung aus Fig. 6 von der Unterseite her,

Fig. 8

eine Ansicht der Riegelführung aus Fig. 6 von der Stulpseite her,

Fig. 9

eine Seitenansicht der Riegelführung aus Fig. 6,

Fig. 10

eine andere Seitenansicht der Riegeführung aus Fig. 6,

Fig. 11

eine perspektivische Ansicht eines zusammengesetzten Schaltschlosses,

Fig. 12 bis 16

Darstellungen des Bewegungsablaufs des Schaltschlosses unter einem Schließblech ohne Öffnung einer zugeordneten Tür,

Fig. 17 bis 23

Darstellungen des Bewegungsablaufs des Schaltschlosses bei Bewegung einer zugeordneten Tür.

It shows:

Fig. 1

a schematic representation of a locking device with a mating box and a switch lock,

Fig. 2

an enlarged view of the switching mechanism Fig. 1 .

Fig. 3

an illustration of the individual parts of the latch bolt of the switch latch Fig. 2 .

Fig. 4

a perspective view of the individual components of the latch bolt immediately before installation,

Fig. 5

a perspective view of the composite latch bolt,

Fig. 6

a perspective view of the bolt guide of the switching mechanism according to the invention,

Fig. 7

a view of the bolt guide Fig. 6 from the bottom,

Fig. 8

a view of the bolt guide Fig. 6 from the cuff side,

Fig. 9

a side view of the bolt guide Fig. 6 .

Fig. 10

another side view of the Riegeführung Fig. 6 .

Fig. 11

a perspective view of an assembled switch lock,

Fig. 12 to 16

Representations of the movement sequence of the switch lock under a strike plate without opening an associated door,

Fig. 17 to 23

Representations of the movement sequence of the switching mechanism when moving an associated door.

In Fig. 1 a closure device 1 is shown schematically, which is provided for example for a door, not shown. It is understood that the Locking device 1 may also be provided for a gate or a window. In the present case, the closing device 1 has a mating box 2 and a switching mechanism 3 on the upper side of the door (not shown). The mating box 2 and the switching mechanism 3 are connected to each other via a drive rod 4. On the upper side, the switching mechanism 3 engages in a striking plate 5, which is mounted in a frame, not shown, of the door. At the bottom closes to the mating box 2, a further drive rod 6, at the end of an unillustrated bolt is provided for engagement in a corresponding strike plate on the ground.

In Fig. 2 is an enlarged view of the switching mechanism 3 Fig. 1 shown. The switching mechanism 3 has a latch guide 7 and a latch bolt 8. The latch bolt 8 is, as hereinafter in particular in connection with the Fig. 12 to 23 is described in more detail, between a dipping into the strike plate 5 locking position (eg Fig. 2 1) and a retracted position retracted into the bolt guide 7 (eg in FIG Fig. 14 shown) movable.

It is essential that a locking lever 9 is pivotally mounted on the latch bolt 8, which is provided for cooperation with the bolt guide 7. In this case, the locking lever 9 acts between the retreat position of the latch bolt 8, as for example in the Fig. 14 and 18 is shown, and the locking position, for example, in the Fig. 12 . 17 and 23 is shown, with the bolt guide 7 in a pre-locking position, as in Fig. 19 is shown, together such that the latch bolt 8 is held in the pre-locking position by the locking lever 9.

In the Fig. 3 to 5 is the latch bolt 8 as such and its individual components are shown in the unassembled and assembled state. The latch bolt 8 has an elongated, cylindrical base body, whose upper end is formed as a trap with a case slope 10. On opposite sides of the latch bolt 8 flats 11 which terminate at a stop 12. The locking lever 9 is mounted in a lever receptacle 13 of the latch bolt 8. For this purpose, a corresponding bearing pin 14 is provided, which is guided by corresponding holes 15 of the latch bolt 8 and a bore 16 in the locking lever 9.

The lower part of the latch bolt 8 has a receptacle 17 for the arrangement of the drive rod 4. At the latch bolt 8, an opening 18 is provided, which opens into the receptacle 17, so that the correct insertion of the drive rod 4 can be visually checked in the recording.

The locking lever 9 has, as can be seen in particular 3 and 4 results in on its Ausschwenkseite 19 a latching recess 20. This is provided for cooperation with the forend 21 of the bolt guide 7. At the top, that is to the free end of the locking lever 9 out, located in the recess 20 is a ramp 20a. By cooperation of the ramp 20a with the forend 21 during a downward movement of the latch bolt 8 relative to the bolt guide 7 of the locking lever 9 is forced to pivot into the lever holder 13.

In the Fig. 6 to 10 the bolt guide 7 is shown in detail. The bolt guide 7 has, in addition to the upper side forend 21, a locking sleeve 22 in which the latch bolt 8 is guided. As can be seen in particular Fig. 8 shows, the forend 21 has two outer screw openings 23 and a central Stulpöffnung 24. The cuff opening 24 is provided at its screw openings 23 facing sides with flats 25. Due to the flattenings 25, stops 26 result on the underside for cooperation with the stops 12 on the latch bolt 8. By means of the mutually corresponding stops 12, 26, it is not possible to extract the latch bolt 8 from above from the bolt guide 7. This results in a tamper-proof.

Incidentally, located in the locking sleeve 22 at the transition to the forend 21 a through-opening 27, which allows engagement of the locking lever 9 to the forend 21 via the locking recess 20.

As, moreover, in particular from the 3 and 4 results, the locking lever 9 is for springing out of the lever holder 13 via a spring element, which in the present case is a coil spring 28, is spring loaded. In this case, the coil spring 28 acts on the Einschwenkseite 29 of the locking lever 9. The coil spring 28 itself is arranged in a receptacle of the lever holder 13 and can also be fixed by a corresponding means on the locking lever 9.

On the Ausschwenkseite 19 of the locking lever 9 is, moreover, following the locking recess 20, a bridging region 30, which is ultimately provided for bridging the gap 31 between the forend 21 and the striking plate 5. The bridging region 30 merges via an insertion bevel 32 into a rounded tip 33, which ensures the insertion of the locking lever 9 into the opening 34 of the striking plate 4.

Incidentally, it follows from the individual representations that no spring element is provided between the bolt guide 7 and the latch bolt 8 in order to move the latch bolt 8 from the retracted position into the locking position. Although the latch bolt 8 is spring-loaded for movement in the locking position, but the spring load is applied outside of the switching mechanism 3, namely within the counter box 2, wherein the spring force is transmitted via the drive rod 4 on the latch bolt 8.

The following is on the function of the switching mechanism based on the Fig. 12 to 23 received. The show Fig. 12 to 16 the movement of the latch 8, which is located below the strike plate 5. This means that the door is in the closed position.

In Fig. 12 the locking position is shown. The latch bolt 8 completely immersed in the opening 34 of the striker plate 5 a. Due to the lock on the switch lock 3, the relevant door can not be opened. In the locking position, the locking lever 9 is slightly pushed out of the lever holder 13 to the outside, so that it protrudes from the latch bolt 8.

In Fig. 13 is the latch bolt 8 with respect to the locking position Fig. 12 slightly withdrawn. The locking lever 9 has been pivoted by the downward movement on the ramp 20a for movement in the lever holder 13 against the spring force of the coil spring 28.

The further downward movement of the latch bolt 8, caused by a corresponding operation on the pusher of the counter box 2, not shown, leads to the in Fig. 14 shown retraction position in which the latch bolt 8 is retracted into the bolt guide 7. In the illustrated embodiment, the latch bolt 8 is completely retracted into the bolt guide 7. The tip of the latch bolt 8 is not on the forend 21 over. In this state, the locking lever 9 is completely in the lever holder 13th

Now, if the pusher, not shown, moves back up to the mating box 2, this movement is transmitted via the drive rod 4 on the latch bolt 8. In Fig. 15 It is shown that the latch bolt 8 begins to dive into the opening 34 of the striking plate 5. During the upward movement of the latch bolt 8, the latching lever 9 is initially retained at least substantially in the lever receptacle 13, since the bridging region 30 of the latching lever initially runs along the peripheral edge of the cuff opening 24. Before the bridging region 30 merges into the latching recess 20, the tip 33 of the latching lever 9 is already immersed in the opening 34 in the strike plate 5.

The further movement of the pusher back to the original state - usually with horizontally arranged handle - leads the latch bolt 8 to the in Fig. 16 illustrated locking position, which ultimately the in Fig. 12 represented position corresponds.

In the Fig. 17 to 23 now the interaction of the switching mechanism 3 when opening and closing a door is shown.

In Fig. 17 is the lock state accordingly Fig. 12 shown. Then the door is opened by pressing the lever and swinging it open.

Fig. 18 shows the retraction position when the door is swung out of the area of the striking plate 5. The latch bolt 8 is completely retracted into the bolt guide 7.

Subsequently, the pusher is moved back to its normal or original position. This leads to an extension of the latch bolt 8 relative to the bolt guide 7. Fig. 19 shows the pre-locking position, in which the locking lever 9 engages behind the forend 21 with the locking recess 20. This position is compared to in Fig. 15 shown position possible because the locking lever 9 is not hindered from swinging.

Subsequently, the door is closed again. Shortly before reaching the closed position of the door, the latch bolt 8 strikes with the latch slope 10 on the peripheral edge of the striker plate 5. This condition is in Fig. 20 shown. As a result of the further pivoting movement of the door, the latch bolt 8 is forced over the latch slope 10 into a downward movement relative to the latch guide 7. Parallel to the downward movement of the latch bolt 8, the locking lever 9 is forced over the ramp 22 to a pivoting into the lever holder 13. This is in Fig. 21 shown.

In a further closing movement of the door of the latch bolt 8, as soon as it is completely below the opening 34 in the strike plate 5, pushed by the spring force of the provided in the mating box 2, not shown, spring upwards. This results first in the Fig. 15 shown state and then the in Fig. 22 illustrated state.

Fig. 23 again shows the final locking state.

LIST OF REFERENCE NUMBERS

1

closing device

2

Strike box

3

switch lock

4

driving rod

5

striking plate

6

driving rod

7

bolt guide

8th

latchbolts

9

locking lever

10

catch slope

11

flattening

12

attack

13

lever accommodation

14

bearing pin

15

drilling

16

drilling

17

admission

18

opening

19

Ausschwenkseite

20

recess

20a

approach ramp

21

stulp

22

locking sleeve

23

screw opening

24

Stulpöffnung

25

flattening

26

attack

27

Through opening

28

coil spring

29

Einschwenkseite

30

bridging region

31

gap

32

chamfer

33

top

34

opening

Claims (8)

1. A switching lock (3), in particular for a strike box (2) or a mortise lock, wherein the switching lock (3) can be coupled via a connecting rod (4) with the strike box (2) or the mortise lock, for use in the upper area of a door, a gate or a window, for interacting with a striker plate (5) on the frame side, with a latching bolt (8) guided in a bolt guide (7), which is movable between a locked position dipping into the strike plate (5) and a retracted position retracted into the bolt guide (7), wherein a lock lever (9) is pivot-mounted on the latching bolt (8), which lock lever interacts in a pre-catch position located between the retracted position and the locked position with the bolt guide (7) and holds the latching bolt (8) in the pre-catch position and wherein the lock lever (9) has a lead-in chamfer (32) on its free end for insertion of the lock lever (9) into the opening (34) of the striker plate (5), wherein the bolt guide (7) has a face plate (21) with a face-plate opening (24), wherein the lock lever (9) on its swing-out side has a catch recess (20) for interacting with the face plate (21) of the bolt guide, and wherein a bridging area (30) for bridging the gap (31) between the face pate (21) and the striker plate (5) is attached to the catch recess (20) of the lock lever (9), to which the lead-in chamfer (32) is attached,
   characterized in
   that the bridging area (30) of the lock lever (9) during the upward movement of the latching bolt (8) initially runs along the outer edge of the face-plate opening (24), whereby the lock lever (9) is prevented from swinging out during the upward movement of the latching bolt (8) and from locking in place on the face plate (21).
2. A switching lock according to Claim 1, characterized in that the lock lever (9) is designed in such a manner and is mounted in a lever receptacle (13) of the latching bolt (8) in such a manner, that during movement of the latching bolt (8) from the pre-watch position into the retracted position the lock lever (9) is pivoted into the lever receptacle (13) and disengages from the bolt guide (7).
3. A switching lock according to Claim 1 or 2, characterized in that a passage opening (27) is provided for the lock lever (9) on a bolt sleeve (22) of the bolt guide (7).
4. A switching lock according to one of the preceding claims, characterized in that a ramp chamfer (20a) is provided on the upper side of the catch recess (20) for interacting with the face plate (21) during the swinging-in of the lock lever (9).
5. A switching lock according to Claim 2, characterized in that the lock lever (9) is spring-loaded for swinging out from the lever receptacle (13), and that, preferably, a spring element acting on the swing-in side (29) of the lock lever (9) is provided on the latching bolt (8).
6. A switching lock according to one of the preceding claims, characterized in that the latching bolt (8) is spring-loaded for moving into the locked position and that the spring loading is applied outside the switching lock.
7. A switching lock according to Claim 3, characterized in that a stop (26) is provided in the bolt sleeve (22) for interacting with a corresponding stop (12) on the latching bolt (8), so that the latching bolt (8) in the installed state of the switching lock (3) cannot be drawn over the face-plate side out of the bolt guide (7).
8. A closing device (1) for a door, a gate or a window with a strike box (2) or a mortise lock and a switching lock (3) connected via a connecting rod (4) with the strike box (2) or the mortise lock according to one of the preceding claims.

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