EP2754795B1 - Strike box or mortise lock - Google Patents

Description

The invention relates to a mating box or a mortise lock, with a lock case with forend having lock housing and at least one mounted in the lock housing rod connection for connecting a rod, wherein the rod connection between a retracted open position and an extended closed position is movable and one from outside the lock housing to actuating locking device is provided which locks the rod connection in the retracted open position in a blocking position.

Counter boxes or mortise locks of the aforementioned type are already known from practice. In order to open a door provided with a known counter box or a known mortise lock of the aforementioned type, it is generally necessary to operate the pusher of the counter box or lock to the rod connection and thus the rod out of engagement with the corresponding strike plate of the door bring.
To facilitate the use of such a door is at one of the EP 2 151 536 A2 known lock with a plurality of locking points, which are actuated by driving rods, a locking device is provided, which acts on the drive rod. By means of the locking device, the lock mechanism can be locked in an open position, so that not only the handle must be pressed to open the door first.
In a similar way causes also in one of the DE 20 2011 103 191 U1 Known lock a locking member blocking the lock mechanism in the open position. The locking member acts directly on a drive rod connected to the lock mechanism, whereby an extension of the drive rod is prevented in a locking position.

Furthermore, from the EP 01 816 602 A2 a self-locking mortise lock in which a locking device is realized in the form of a lock cylinder bit. The locking device acts on a slider inside the lock and serves to block the lock mechanism in an open position, ie with retracted case or retracted latch.

Object of the present invention is therefore to expand the scope of the known counter box or mortise lock in terms of easier operation and a simple construction of the locking device.

For this purpose, in a generic counter box or mortise lock of the aforementioned type essentially provided from outside the lock housing to be operated locking device which locks the rod connection in the retracted open position in a blocking position. This makes it possible, in principle, to use the door provided with the counter box or mortise lock as a swing door, since the at least one rod can be permanently determined by means of the locking device in the retracted open position. This purpose is served by the outside of the lock housing manually operated locking device, which can be adjusted in particular when the door is open to block the bar connection in the retracted open position.
According to the invention, the locking device on the one hand on a protruding through the forend of the lock housing locking lever. In this way, a simple mechanical way to lock the bar connection is provided, which can be adjusted manually from the outside, that is locked and unlocked from the outside when the door is open.
In order not to interfere with the lock housing in the lock housing anyway low existing space, is provided in the invention on the other hand, that the locking lever is mounted on the outside of the lock housing. In this case, the locking lever is located on the short flat side of the lock housing, at which the rod connection emerges from the lock housing.
In order to operate the locking lever in a simple manner from the outside, the locking lever on a slightly over the outside of the sleeve protruding operating portion. In this case, the projecting operating portion is designed so that it does not obstruct the closing of the door, so is in the door gap of the closed door and does not come into contact with the opposite side. The supernatant of the actuating portion is so in any case smaller than the maximum Türspaltmaß, which is usually at a maximum of 8 mm. However, the projection of the actuating section is preferably much smaller and is preferably between 0 mm and 5 mm and in particular between 0 mm and 2 mm. It should be noted that in principle it is also possible that the operating lever does not protrude beyond the forend, but is accessible from the outside via a cuff opening.

To further reduce the projection of the locking lever is otherwise provided that it has such an angled shape that the supernatant of the actuating portion is minimized.

In order to keep the locking device as simple as possible in terms of design, the locking lever acts in the blocking position directly on the rod connection. The blocking can be realized in a particularly simple manner constructively characterized in that the locking lever engages over the rod connection in the blocking position or engages in this. By over or engagement of the locking lever of the rod connection is then locked in the retracted open position accordingly.

In principle, it is possible to store the locking lever slidably on the lock housing. However, a displaceability of the locking lever causes it in the release position with its operating section relatively far beyond the forend. Therefore, in a particularly preferred embodiment of the invention, the locking lever is pivotally mounted on the lock housing. In this way, while ensuring the function, only a slight projection of the actuating portion can be ensured both in the blocking position and in the release position, ie when the rod connection is extended, which is achieved in particular by the angled shape.

In order to achieve a maximum grip of the locking lever in the blocking position, the invention provides that the locking lever end has a protruding over-grip portion which engages over the rod connection only when pivoting the locking lever. Ultimately, it is at the protruding overlap portion to an end protruding nose, which projects beyond the actual end of the locking lever. In particular, it allows the end protruding nose, that as a locking lever, a flat component can be used, is arranged at the end of the over-grip portion in the release position adjacent to the rod connection. When swiveling to lock the overlapping portion then overlaps the rod connection. The use of a comparatively wide locking lever is expedient for fastening reasons.

As a rule, a counter box or a mortise lock not only has a bar connection and a rod coupled thereto. Usually, a bar connection is provided on the top and bottom, so that the locking on the door can be done both above and below. With two bar connections it can be provided that the two bar connections are coupled to each other in terms of movement. In this case, only one rod connection a locking lever is assigned, since the blocking of only one rod connection due to the coupling and the other rod connection is locked in the retracted open position. In embodiments in which the rod terminals are not coupled together, it is understood that each rod terminal is associated with a locking lever of the aforementioned type.

As a result, a locking device for blocking the (usually) two rods of a door provided by the invention to hold the rods in the retracted open position, wherein the locking device is formed in a very simple manner and in a constructive ultimately only one Has locking lever mounted on the lock housing.

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 perspektivische Ansicht eines erfindungsgemäßen Gegenkastens mit ausgefahrenen Stangenanschlüssen,

Fig. 2

eine Draufsicht auf den Gegenkasten aus Fig. 1,

Fig. 3

eine Vorderansicht des Gegenkastens aus Fig. 1, wobei nur der obere Teil des Stulps dargestellt ist,

Fig. 4

eine der Fig. 1 entsprechende Darstellung mit eingezogenen Stangenanschlüssen im gesperrten Zustand,

Fig. 5

eine Draufsicht auf den Gegenkasten aus Fig. 4,

Fig. 6

eine Vorderansicht des Gegenkastens aus Fig. 4, wobei nur der obere Teil des Stulps dargestellt ist und

Fig. 7

eine Draufsicht auf einen Sperrhebel der Sperreinrichtung mit einem zugehörigen Niet.

It shows

Fig. 1

a perspective view of a counter box according to the invention with extended bar connections,

Fig. 2

a plan view of the mating box Fig. 1 .

Fig. 3

a front view of the counter box Fig. 1 where only the upper part of the forend is shown,

Fig. 4

one of the Fig. 1 corresponding representation with retracted bar connections in the locked state,

Fig. 5

a plan view of the mating box Fig. 4 .

Fig. 6

a front view of the counter box Fig. 4 , where only the upper part of the forend is shown and

Fig. 7

a plan view of a locking lever of the locking device with an associated rivet.

In each of the figures, a mating box 1 is shown. It should be pointed out that the following statements relate exclusively to the counter box 1, but apply in the same way for a mortise lock, as far as the invention or the features essential to the invention are concerned, even if this is not mentioned in detail.

The counter box 1 has a lock housing 2 with a lock case 3 and a lock cover 4. On the front side, a forend 5 is provided on the lock case 3. In the forend 5 are located next to various attachment openings an opening 6 for a Fallenauswerfer 7 and an opening 8 for a Riegelauswerfer 9. The Fallenauswerfer 7 and the Liegelauswerfer 9 are characteristic components of a counter box 1, which are not provided in a mortise lock. Instead, the mortise lock has a latch and a latch.

Furthermore, the counter box 1 has two bar connections 10, 11, namely an upper bar connection 10 and a lower bar connection 11, which are respectively provided for connection of a corresponding bar. The rods are guided by the door, not shown, and engage each end in a corresponding opening of a strike plate on the frame or floor. Rod connections of the type in question can also be provided in a mortise lock.

Furthermore, the mating box 1 a Schaltnuss 12, which is actively actuated by pushers, not shown. By operating the Schaltnuss 12 are on the one hand via the lock mechanism, the rod terminals 10, 11 retracted and on the other hand, the Fallenauswerfer 7 and the Liegelauswerfer 9 activated or swung.

In Fig. 1 are the rod terminals 10, 11 in the extended closed position. The Schaltnuss 12 is in its neutral position and the Fallenauswerfer 7 and the Liegelauswerfer 9 are pivoted. At the in Fig. 4 illustrated situation, the rod terminals 10, 11 are retracted and are in the open position. The Fallenauswerfer 7 and the Riegelauswerfer 9 are in the pivoted position.

It is essential that on the mating box 1 is provided from outside the lock housing 2 to be operated locking device 13, which in a blocking position, in the 4 to 6 is shown, the upper bar connector 10 locks in the retracted open position. The locking device 13 has a locking lever 14, as such in Fig. 7 is shown. The locking lever 14 protrudes through a corresponding opening 15 in the forend 5 therethrough. At its face-end, the locking lever 14 has a slightly protruding beyond the outer side 16 of the forend 5 operating portion 17. In particular, in the blocking position of the actuating portion 17 projects through the opening 15 and is on the outside 16 of the forend 5 over. Overall, the locking lever 14 has an angled shape, as is the case in particular Fig. 7 results, with the angled shape with the operating portion 17 is tuned to that the supernatant of the actuating portion 17 in both the blocking position according to the 4 to 6 as well as in the release position according to the Fig. 1 to 3 is minimized.

The function of the locking lever 14 is based on the fact that it acts directly on the rod terminal 10 in the locking position. For this purpose, the locking lever 14 engages over the rod connection 10 such that the underside of the locking lever 14 lies on the upper side 18 of the rod connection 10.

The locking lever 14 itself is pivotally mounted on the outside of the lock housing 2. For pivotal mounting of the locking lever 14 is riveted via a rivet 19 with the short end face of the lock case 3. For this purpose, a corresponding rivet opening 20 is provided in the locking lever 14.

As can be seen in particular Fig. 7 shows, the locking lever 14 at its the actuating portion 17 opposite end on a protruding overlap portion 21, which is arranged in the release position adjacent to the bar connection 10, as shown in Fig. 2 is shown and engages over the rod terminal 10 in the locked position, as in particular in Fig. 5 is shown. The grip portion 21 is formed in the form of a kind of nose, which is above the actual End 22 of the locking lever 14 protrudes, while the actual end 22 engages over the rod terminal 10 neither in the release nor in the blocking position.

In the embodiment of the counter box 1 shown in the figures, the two rod terminals (10, 11) are coupled to each other in terms of movement. This means that upon actuation of the shift nut 12, both rod terminals 10, 11 are retracted. With a movement-related coupling of the bar connections 10, 11, it is sufficient to associate only one bar connection, in particular the upper bar connection 10, with a blocking lever 14. If there is a lack of motion coupling of the bar connections, a bar must be assigned to each bar connection.

In order to use the provided with the mating box 1 door as a swinging door, starting from the in the Fig. 1 to 3 illustrated position, the shift nut 12 is actuated via a pusher, so that the rod terminals 10, 11 and the rods connected thereto are retracted. If the Schaltnuss 12 is held in this state via the pusher, the locking lever 14 of the in the Fig. 1 to 3 shown position pivoted into the blocking position. This can in principle be done without the aid of a tool, since the actuating portion 17 protrudes slightly beyond the outer side 16. By pivoting of the actuating portion 17 of the overlapping portion 21 engages over the top of the rod terminal 10, so that it is locked in the retracted open position. The door can now be used as a swinging door, as a locking of the provided with the mating box 1 door on the bars even when operating the shift nut 12 does not occur. Only when the locking lever from the in 4 to 6 position shown in the in Fig. 1 to 3 shown position is pivoted back, the upper bar connection 10 and thus also the lower bar connection 11 is released again, so that an extension of the rods in the closed position is possible.

LIST OF REFERENCE NUMBERS

1

Strike box

2

lock housing

3

lock case

4

lock cover

5

stulp

6

opening

7

Fallenauswerfer

8th

opening

9

Riegelauswerfer

10

rod connection

11

rod connection

12

switching nut

13

locking device

14

locking lever

15

opening

16

outside

17

actuating section

18

top

19

rivet

20

rivet opening

21

About handle portion

22

The End

Claims (8)

1. A strike box (1) or mortise lock, with a lock housing (2) having a lock box (3) with face-plate (5) and at least one rod connection (10, 11) mounted in the lock housing (2) for connecting a rod, wherein the rod connection (10, 11) is movable between a retracted open position and an extended closing position and wherein a locking device (13) to be actuated from outside the lock housing (2) is provided, which in a locking position locks the rod connection (10, 11) in the retracted open position,
   characterized in
   that the locking device (13) has a locking lever (14) projecting through the face-plate (5) and that the locking lever (14) is mounted on the outside on a short flat side of the lock housing (2), on which the rod connection (10, 11) exits from the lock housing (2).
2. A strike box or mortise lock according to Claim 1, characterized in that the locking lever (14) has an actuating section (17) protruding over the outside of the face-plate (5).
3. A strike box or mortise lock according to Claim 2, characterized in that the locking lever (14) has such an angled shape, that the protrusion of the actuating section (17) is minimized.
4. A strike box or mortise lock according to any one of the preceding claims, characterized in that the locking lever (14) acts in the locking position directly on the rod connection (10, 11).
5. A strike box or mortise lock according to any one of the preceding claims, characterized in that the locking lever (14) overlaps the rod connection (10, 11) in the locking position.
6. A strike box or mortise lock according to any one of the preceding claims, characterized in that the locking lever (14) is pivotably mounted on the lock housing (2).
7. A strike box or mortise lock according to any one of the preceding claims, characterized in that the locking lever (14) has a projecting overlap section (21) on the end side, which overlaps the rod connection (10, 11) in the locking position.
8. A strike box or mortise lock according to any one of the preceding claims, characterized in that in the lock housing (2) in each case a rod connection (10, 11) is provided on the upper and lower side and that in the case of rod connections (10, 11) motion-coupled with each other a locking lever is assigned only to one rod section (10) or that in the case of rod connections (10, 11) not motion-coupled with each other a locking lever is assigned in each case to each rod connection (10, 11).

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