EP2754801A2 - Strike box or mortise lock - Google Patents

Abstract

The counter case (1) or mortise dead lock, has an upper rod connection (10) for connecting an upper rod and a lower rod connection (11) for connecting a lower rod. A lock mechanism is configured such that only the upper rod connection extends for locking the rods, while the lower rod connection is locked in a retracted position through a locking device. The upper rod connection unlocks the locking device after reaching a predetermined extension position.

Description

The invention relates to a counter box or a mortise lock, comprising an upper bar connection for connecting an upper bar, a lower bar connection for connecting a lower bar and a lock nut for actuation lock mechanism for retracting and extending the bar ends, wherein the lock mechanism is designed such that for locking the rods, initially only the upper bar connection extends, while the lower bar connection is locked in the retracted position via a locking device and only after reaching a predetermined extended position of the upper bar connection unlocks the locking device and the lower bar connection is released from the retracted position and extends , so that there is a delayed extension movement of the lower bar connection with respect to the upper bar connection.

A mating box or a mortise lock of the aforementioned type is already out of the DE 39 03 633 A1 known. It is such that the release takes place when closing the door provided there, wherein the upper drive rod end acts on a frame-side counter-closing part, connected to a downward movement of the upper drive rod. This movement is transmitted to a drive rod terminal slide and a return finger whose inclined edge acts on a pin. As a result, a locking slide is retracted against a spring load via a slide, wherein the locking slide leaves a locking recess of the lower drive rod connecting slide. Fedebeaufschlagt now this can drive with the seated on him lower drive rod in the downward blocking position. In the known solution, an impulse of the upper rod is thus required downwards or inwards in order to realize an unlocking of the upper rod connection.

The known from the prior art solution is not only relatively expensive, it is to unlock also a downward pulse of the upper rod required, but does not correspond to the immersion movement of the upper drive rod end in the lock plate provided in the frame. Therefore, it can also come in the known solution to an early extension of the lower drive rod.

Object of the present invention, it is now to provide a counter-box or mortise lock of the type mentioned are available, are excluded in the structurally simple way damage to the floor by sanding marks due to the lower end of the lower rod.

The above object is achieved according to the invention in a mating box or a mortise lock of the type mentioned essentially in that the top bar connection is assigned a latching mechanism with latch, which for switching from an activated state in particular with a lower bar supernatant in a locked state, in particular with maximum bar supernatant is provided and that the lock mechanism is designed such that the release of the lower bar connection is only initiated when the switch lock switches from the activated state to the locked state.

Since the switch lock finally only in the locked state switches when the upper end of the upper rod in the region of the opening of the strike plate and switches to the locked state, the lower rod is only released when the lower rod end in the area the opening of the lower strike plate is located. The activation is carried out in the inventive solution thus by the external switching mechanism, with an impulse of the upper rod down or an inward movement of the upper rod into the lock housing inside for activation are not required. Instead, the switch lock only switches when the door is in the "right" position. In the context of the switching mechanism, the "activated state" ultimately means that the switching mechanism is preloaded. In this case, the bolt may have a low bar supernatant or be retracted into the switch lock. In contrast, the "locked state" means that the switch lock has been activated and the bolt has retracted into the strike plate of the associated frame.

Thus, in the invention, the extension movement of the upper bar connection is ultimately decoupled from the extension movement of the lower bar connection insofar as the initiation of the extension movements of both bar connections is not simultaneous but delayed, ie the upper bar connection is at least partially, if not fully extended, before the extension movement of the lower bar connection begins. In this way it can be ensured that the lower bar connection extends only when the door is closed and the upper bar connection already extends its extension movement has begun or even completed and the upper end of the upper rod is already in the strike plate or immersed in this. As a result, sanding marks on the ground, which result from the lower end of a too early extending lower rod, safely avoided.

In a preferred embodiment of the counter box according to the invention, the lock mechanism has a pull rod, which is coupled to the lower rod connection and can be actuated via the switch nut, with a stop. Furthermore, the locking device has a spring-loaded in the direction of the pull rod locking lever with a counter-stop for cooperation with the stop of the pull rod to lock the pull rod in the retracted position. As long as the stop of the tie rod cooperates with the counter-stop of the locking lever, it is not possible to move the lower rod connection from the retracted, locked position. In this way it can be ensured that the lower bar connection and thus the lower bar only extends when a corresponding unlocking has taken place after reaching the closed door position.

To unlock the pull rod and thus to release the lower bar connection, the locking device on a release lever. Preferably, this release lever is linearly displaceable and as such not spring loaded, which can be structurally very simple and inexpensive to implement. Due to the slidable movement of the release lever this can be moved back and forth due to its own weight. Preferably, the release lever is permanently on the locking lever and is adjusted by the spring load of the locking lever, unless the release lever is otherwise loaded against the spring force.

For loading or activation of the unlocking a coupled to the upper rod connection lever is provided in a structurally very simple embodiment, which is actuated via the Schaltnuss. This lever, which is preferably designed as a pivot lever acts to unlock the release lever.

The structural design of the delayed extension movement of the lower rod connection is preferably realized in that the movement of the lever designed in particular as a pivot lever and / or the Entsperrhebels is not implemented directly to unlock the locking lever.

For the realization of the aforementioned feature, there are above all two essential adjustment possibilities. On the one hand, it may be provided that the unlocking lever and the lever designed in particular as a pivoting lever are spaced at their mutually facing ends in the retracted or partially extended state of the upper bar connection. This distance ensures that the distance or gap between the ends facing each other must first be bridged during extension of the upper rod connection until the movement of the lever designed in particular as a pivot lever is transmitted to the unlocking lever. In addition, it is possible that the stop on the pull rod is designed as an extended nose. This means that the counter-stop on the locking lever must be moved over the entire length of the stop on the drawbar before the drawbar is released. Preferably, the extended nose is at least 50% longer than the effective length of the counter-attack on the locking lever. Incidentally, it is understood that it is also possible in principle to space both the aforementioned ends of the lever and the Entsperrhebels, as well as to provide an extended nose as a stop on the pull rod.

As has been stated above, the switching mechanism according to the invention is characterized in that it is provided and designed for switching from an activated state, in particular with a lower overhang of the bar, into a locked state, in particular with maximum bar protrusion. Functionally, this means that after retraction of the upper bar connection and subsequent release of the upper bar connection is not or only partially extends until the latch of the switching mechanism is in an activated or biased state. If the switch lock then comes into contact with the frame-side strike plate when the door is swiveled, it is triggered, so that the catch can dip into the opening of the strike plate and extend as far as possible.

In a mortise lock or counter box provided with a switch lock, the lock mechanism is preferably designed such that the unlocking of the lock lever is not initiated until the switch lock switches from the activated state to the locked state. Such a switching of the switching mechanism ultimately takes place only when the door is in its closed position, that is has been swung. Then it is due to the switch lock so that the latch of the switch latch dips into the strike plate in the frame of the door. This movement, with an extension movement of the upper bar connection Eventually, it triggers the delayed release of the drawbar, so that the lower bar connection can extend. This is done, as already stated, only when the door is closed, so that sanding marks on the ground are prevented by a too early extending lower rod in any case.
In terms of design, the switch lock on a bolt guide for the bolt, which is movable between a dipping into the strike plate locking position and a dipping into the bolt guide retraction position. In this case, a locking lever is pivotally mounted on the latch, which cooperates in a lying between the retraction position and the locking position Vorraststellung with the bolt guide and holds the latch in the pre-locked position.

In a preferred embodiment of the invention, a lever receptacle for the locking lever is provided in the bolt, in which the locking lever is mounted. This is ultimately a slot-like recess in the locking 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 bolt from the pre-locking position in the retracted position, ie when retracting the 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 it when the bolt is retracted. The retraction can be done both via the pusher of the counter box or Einstellschlosses and when closing the door or the interaction of the bolt with the strike plate.

To determine the 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 locking 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 stub through the locking lever on the recess ,

Thus, the locking lever automatically pivoted back in the downward movement of the bolt in the lever holder, a ramp is provided at the top of the recess. This ramp acts with the upper edge the Stulpöffnung in the forend together, which causes the locking lever is pivoted in the downward movement of the bolt in the lever holder.

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 in the pre-locked 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, an acting on the Einschwenkseite the locking lever spring element is preferably provided on the 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 bolt and also acts on the Einschwenkseite.

Incidentally, the locking lever is designed such that the switching, that is, the movement of the bolt from the retraction position directly into the locking position is possible without a detection or locking of the bolt occurs in the pre-locking position, this is achieved in that constructively the locking opening of the locking lever adjoins a bridging region of the locking lever for bridging the gap between the forend and the striking plate. At the same time, the locking lever has at its free end, following the bridging region, an insertion bevel for insertion of the locking lever into 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, whereby the locking lever is prevented from swinging out during the upward movement of the bolt and locking on the forend. Only when the bolt is immersed in the maximum extent in the strike plate, a further pivoting of the bolt from the lever holder is possible.

In the embodiment of the invention, the latch 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 bolt springs are provided, which further simplifies the construction of the switching mechanism 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 bolt, which are effective only after exceeding the locking position and prevent interaction that the 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 perspektivische Ansicht eines erfindungsgemäßen Gegenkastens,

Fig. 2

eine Draufsicht auf den Gegenkasten aus Fig. 1 mit weggelassener Schlossdecke und ausgefahrenen Stangenanschlüssen,

Fig. 3

eine der Fig. 2 entsprechende Ansicht mit teilweise eingezogenen Stangenanschlüssen,

Fig. 4

eine der Fig. 3 entsprechende Ansicht des Gegenkastens mit vollständig eingezogenen Stangenanschlüssen,

Fig. 5

eine der Fig. 4 entsprechende Ansicht unter Weglassung verschiedener Bauteile der Schlossmechanik,

Fig. 6

eine Ansicht des erfindungsgemäßen Gegenkastens mit Stangen und einem der oberen Stange zugeordneten Schaltschloss im aktivierten Zustand,

Fig. 7

eine Ansicht des Gegenkastens aus Fig. 6 unter Weglassung der Stangen und verschiedener Bauteile der Schlossmechanik,

Fig. 8

eine der Fig. 6 entsprechende Ansicht des Gegenkastens mit vollständig ausgefahrenen Stangen,

Fig. 9

eine Ansicht des Gegenkastens aus Fig. 8 unter Weglassung der Stangen und verschiedener Bauteile der Schlossmechanik,

Fig. 10

eine schematische Darstellung eines Gegenkastens mit einem Schaltschloss,

Fig. 11

eine vergrößerte Darstellung des Schaltschlosses aus Fig. 10,

Fig. 12

eine Darstellung der Einzelteile des Riegels des Schaltschlosses aus Fig. 11,

Fig. 13

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

Fig. 14

eine perspektivische Ansicht des zusammengesetzten Riegels,

Fig. 15

eine perspektivische Ansicht der Riegelführung des erfindungsgemäßen Schaltschlosses,

Fig. 16

eine Ansicht der Riegelführung aus Fig. 15 von der Unterseite her,

Fig. 17

eine Ansicht der Riegelführung aus Fig. 15 von der Stulpseite her,

Fig. 18

eine Seitenansicht der Riegelführung aus Fig. 15,

Fig. 19

eine andere Seitenansicht der Riegelführung aus Fig. 15,

Fig. 20

eine perspektivische Ansicht eines zusammengesetzten Schaltschlosses,

Fig. 21

bis 25 Darstellungen des Bewegungsablaufs des Schaltschlosses unter ei-nem Schließblech ohne Öffnung einer zugeordneten Tür,

Fig. 26 bis 32

Darstellungen des Bewegungsablaufs des Schaltschlosses bei Bewegung einer zugeordneten Tür.

It shows

Fig. 1

a perspective view of a counter box according to the invention,

Fig. 2

a plan view of the mating box Fig. 1 with omitted lock cover and extended bar connections,

Fig. 3

one of the Fig. 2 corresponding view with partially retracted bar connections,

Fig. 4

one of the Fig. 3 corresponding view of the counter box with fully retracted bar connections,

Fig. 5

one of the Fig. 4 corresponding view omitting various components of the lock mechanism,

Fig. 6

a view of the counter box according to the invention with rods and one of the upper rod associated switching mechanism in the activated state,

Fig. 7

a view of the counter box Fig. 6 omitting the rods and various components of the lock mechanism,

Fig. 8

one of the Fig. 6 corresponding view of the counter box with fully extended rods,

Fig. 9

a view of the counter box Fig. 8 omitting the rods and various components of the lock mechanism,

Fig. 10

a schematic representation of a counter box with a switch lock,

Fig. 11

an enlarged view of the switching mechanism Fig. 10 .

Fig. 12

a representation of the individual parts of the bolt of the switching mechanism Fig. 11 .

Fig. 13

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

Fig. 14

a perspective view of the composite bolt,

Fig. 15

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

Fig. 16

a view of the bolt guide Fig. 15 from the bottom,

Fig. 17

a view of the bolt guide Fig. 15 from the cuff side,

Fig. 18

a side view of the bolt guide Fig. 15 .

Fig. 19

another side view of the bolt guide Fig. 15 .

Fig. 20

a perspective view of an assembled switch lock,

Fig. 21

to 25 representations of the sequence of movement of the switch lock under a strike plate without opening an associated door,

Fig. 26 to 32

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

In Fig. 1 a mating box 1 is shown. It should be pointed out that the following statements refer exclusively to a counter-box, but apply equally to a mortise lock, as far as the invention or the features essential to the invention are concerned. In this respect, the following statements relate in a similar manner to a mortise lock, even if this is not specified 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 mating 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 connecting a bar 12, 13. The rods 12, 13 are guided by the door, not shown, and engage the end in corresponding openings of striking plates on the frame of the door or floor. In the in the Fig. 6 and 8th illustrated embodiments, a switching mechanism 14 is provided with a latch 15 at the upper end of the upper rod 12. At the lower end of the lower rod 13 is a guide 16 for the lower end of the rod 13. The switching mechanism 14 and the guide 16 are installed in the door. Bar connections and rods and the switch lock and the leadership of the type in question may also be provided in a mortise lock.

Furthermore, the counter box on a Schaltnuss 17, which is actively actuated by pushers, not shown. By operating the Schaltnuss 17 are on the one hand on the lock mechanism, the Stangenanschlüssse 10, 11 from its extended position in the Fig. 1 and 2 shown retracted to its retracted position, as for example in Fig. 4 is shown, and on the other hand, the Fallenauswerfer 7 and the Liegelauswerfer 9 are activated and swung out. For activation / actuation of the upper rod connection 10 by the shift nut 17, on the one hand, a linkage 18 is used, which in the present case is a curved wire section. On the other hand, a pivot lever 19 is provided in the coupling line. The linkage 18 connects the lower end of the upper rod terminal 10 with the pivot lever 19, which in turn is coupled to the shift nut 17.

The pivot lever 19, which ultimately has a blocking function in the illustrated embodiment and acts as a locking lever, but what is not discussed further herein, is pivotally mounted and has an upper end 20 and a lower end 21. For pulling in the upper bar connection 10, an operating section 23 provided on an arm 22 of the sliding nut 17, which is in the present case a mandrel, acts on a drainage surface 24 on the upper end 20 of the pivoting lever 19. As a result, the pivoting lever 19 is pivoted downwards and the upper one Rod terminal 10 fed, as can be seen from a comparison of Fig. 2 to 4 results.

The lower bar connection 11 is connected to a pull rod 25 and the latter is coupled to the control nut 17. For this purpose, an attack portion, in the present case in the form of a mandrel 26, provided at the upper end of the tie rod 25, of an in Fig. 2 dashed shown arm 27 of the 17 Schaltnut is under attack. By rotation of the shift nut 17 about the nut pivot axis the linearly adjustable in the direction of arrow X drawbar 25 is retracted. This results from a comparison of Fig. 2 to 4 ,

Simultaneously with the retraction of the rod terminals 10, 11 are on actuation of the shift nut 17 of the Fallenauswerfer 7 and the Liegelauswerfer 9 from their in Fig. 2 illustrated retracted position in the in Fig. 4 shown extended position moves through the lock mechanism. For this purpose, the trap ejector 7 is connected to the upper bar connection 10 via a linkage 28, which is likewise a bent wire section, so that a linear downward movement of the upper bar connection 10 is converted into a pivoting movement of the bar ejector 9. At the same time, the linear upward movement of the pull rod 25 is converted into a pivoting movement of the bar ejector 9 by means of an actuating section designed as a mandrel 29, which acts on a run-off surface 30 of the bar ejector 9.

It is now provided that the lock mechanism of the counter box 1 is formed such that initially only the upper bar connection 10 extends for locking the bars 12, 13, while the lower bar connection 11 is locked in the retracted position via a locking device 31. Only after reaching a predetermined extended position of the upper bar connection 10, that is, when the door has been pivoted to the closed position and the rods 12, 13 in alignment with the associated strike plates on the frame of the door and on the ground, the locking device 30 is unlocked and the lower rod terminal 11 released from its retracted position. This results in a delayed extension movement of the lower rod terminal 11 relative to the upper rod connection, which will be discussed in more detail below.

The locking device 31 in this case has a pivotally mounted locking lever 32, which is spring-loaded via a spring 33 in the direction of the drawbar 25 and the forend 5 of the counter box 1. The locking lever 32 has at its free end a counter-stop in the form of a mandrel 34. To the mandrel 34 corresponds to a stop in the form of an elongated nose 35 on the tie rod 25. The nose 35 has a lower-side abutment portion 36 and a top-side bevel 37.

At the in Fig. 2 illustrated state, the nose 35 and the mandrel 34 are not engaged with each other. The nose 35 is located below the mandrel 34. By operating the switch 17, the pull rod 25 is moved upward until the ramp 30 comes to rest on the mandrel 34. Due to the run-on slope 37, the locking lever is initially pivoted away against the spring force ( Fig. 3 ) while then pivoted back under the nose 35 spring assisted. If the shift nut 17 is now moved back into its initial state, the contact section 36 comes to lie on the dome 34, so that an extension movement of the lower pole connection 11 due to the blocking is not possible.

While, after the backward pivoting or rotation of the control nut 17 assisted by the spring 38, the lower bar connection 11 is locked on the mandrel 34 due to the blocking device 31 or the contact of the nose 35, the upper bar connection 10 at least partially extends again. Thus, the upper bar connection 10 does not extend fully, is in the in Fig. 6 illustrated embodiment at the upper end of the upper rod 12, the switching mechanism 14 is provided. From the forend 39 of the switching mechanism 14 of the bolt 15 protrudes partially out. The switching mechanism 14 is biased in this case with a board of 12 mm or active.

If the relevant door is now pivoted into the closed position, the latch 15 of the activated switch lock 14 first strikes the strike plate in the door frame, is activated and emerges during the final pivoting movement of the door into the opening of the strike plate (not shown) in the frame. In this case, the upper bar connection 10 is moved upward. In this context, the top part of the illustration according to Fig. 8 directed. The immersion of the bolt 15 in the strike plate in the frame and the upward movement of the upper rod terminal 10 causes the pivot lever 19 is pivoted about the linkage 18 with its upper end 20 upwards. At the same time pivots the lower end 21 of the pivot lever 19 down. In this case, the lower end 21 acts on an unlocking lever 40 which is mounted linearly displaceable in the lock housing 2. For this purpose, the release lever 40 has a slot 41 into which a mandrel 42 engages for guidance and movement limitation. The lower end 21 of the pivot lever 19 acts on the upper end 43 of the Entsperrhebels 40, while the lower end 44 of the Entsperrhebels 44 acts on the mandrel 34 of the locking lever 32. The pivoting movement of the pivoting lever 19 is thus converted into a linear movement of the unlocking lever 40 and this in turn in a pivoting movement of the locking lever 32 for unlocking.

The unlocking lever 40 itself is basically not spring-loaded as such. The release lever 40 is always due to its own weight on the mandrel 34 of the locking lever 32 and is moved either by the spring-assisted locking lever 32 or by the pivot lever 19.

Fig. 5 illustrates that the lower end 21 of the pivot lever 19 is spaced from the upper end 43 of the Entsperrhebels 40, the pivot lever 19 must therefore first be pivoted by a certain amount until the lower end 21 of the pivot lever at the upper end 43 of the Entsperrhebels 40 comes to rest , This condition is in Fig. 7 shown. But it should also be pointed out that the ends 21, 43 are also in the in Fig. 7 shown state can still be spaced so that when unlocking a (further) delay results, since this distance must be overcome first.

Out Fig. 7 also results that the upper bar connection 10 is partially extended due to the activation of the switching mechanism 14. The blocking over the locking lever 32 is not canceled by the release lever 40 yet. Fig. 9 illustrates that at maximum extension of the upper bar connection 10 and corresponding pivoting of the pivot lever 20 of the release lever 40 has been moved linearly maximum downward and has pivoted the locking lever 32 from the locked position to a release position. This has the consequence that the mandrel 34 is disengaged from the nose 35, resulting in a release of the drawbar 25. Since after the extension of the upper bar connection 10 in the maximum extended position accordingly Fig. 8 From the mandrel 34, first the length of the abutment portion 36 on the nose 35 must be overcome until the release, there is a delayed Ausstellbewegung the lower bar connection 11 relative to the upper bar connection 10. The drawbar 25 is after unlocking by the dead weight of the lower Rod 13 and possibly spring assisted moves down, so that the lower end of the lower rod 13 falls into the bottom-side strike plate.

In Fig. 10 a mating box 1 is shown schematically, which is provided for example for a door, not shown. It is understood that the mating box 1 can also be provided for a gate or a window. The mating box 1 and the switching mechanism 14 are connected to each other via the drive rod 12. On the upper side, the switching mechanism 14 engages in a striking plate 105, which is mounted in a frame, not shown, of the door. Downwardly adjoins the mating box 1, the further drive rod 13, at the end of an unillustrated bolt is provided for engagement in a corresponding strike plate on the ground.

In Fig. 11 is an enlarged view of the switching mechanism 12 Fig. 10 shown. The switching mechanism 14 has a latch guide 107 and the latch 15. The latch 15 is, as hereinafter in particular in connection with the Fig. 21 to 32nd is described in more detail, between a locking position immersed in the striking plate 105 (eg in Fig. 11 1) and a retracted position retracted into the latch guide 107 (eg, in FIG Fig. 23 shown) movable.

It is provided that on the bolt 15, a locking lever 109 is pivotally mounted, which is provided for cooperation with the bolt guide 107. In this case, the locking lever 109 acts between the retracted position of the bolt 15, as for example in the Fig. 23 and 27 is shown, and the locking position, for example, in the Fig. 21 . 26 and 32 is shown with the bolt guide 107 in a pre-rest position, as in Fig. 28 is shown, together so that the bolt 15 is held in the pre-locking position by the locking lever 109.

In the Fig. 12 to 14 is the latch 15 as such and its individual components are shown in the unassembled and assembled state. The bolt 15 has an elongated, cylindrical base body, whose upper end is formed as a trap with a case slope 110. On opposite sides of the latch 15 has flats 111 which terminate at a stop 112. The locking lever 109 is mounted in a lever receptacle 113 of the bolt 15. For this purpose, a corresponding bearing pin 114 is provided which is guided by corresponding bores 115 of the bolt 15 and a bore 116 in the locking lever 109.

The lower part of the bolt 15 has a receptacle 117 for the arrangement of the drive rod 12. Latch 15 is an opening 118 is provided, which opens into the receptacle 117, so that the correct insertion of the drive rod 12 can be visually checked in the recording.

The locking lever 109 has, as can be seen in particular FIGS. 12 and 13 yields, on its Ausschwenkseite 119 a latching recess 120. This is provided for cooperation with the forend 121 of the bolt guide 107. At the top, that is to the free end of the locking lever 109, located in the recess 120 a ramp 120a. By cooperation of the ramp 120a with the forend 121 with a downward movement of the bolt 15 relative to the latch guide 107 of the locking lever 109 is forced to pivot into the lever holder 113.

In the 15 to 19 the bolt guide 107 is shown in detail. The bolt guide 107 has, in addition to the upper side forend 121, a locking sleeve 122 in which the bolt 15 is guided. As can be seen in particular Fig. 17 results, the forend 121 has two outer screw openings 123 and a central Stulpöffnung 124. The cuff opening 124 is provided with flats 125 on its sides facing the screw openings 123. Due to the flattenings 125, stops 126 for interacting with the stops 112 on the bolt 15 result on the underside. By the mutually corresponding stops 112, 126, it is not possible to pull the bolt 15 from above from the bolt guide 107. This results in a tamper-proof.

Incidentally, in the locking sleeve 122 at the transition to the forend 121, there is a passage opening 127, which makes it possible for the locking lever 109 to engage the forend 121 via the latching recess 120.

As, moreover, in particular from the FIGS. 12 and 13 results, the locking lever 109 is to spring out of the lever receptacle 113 via a spring element, which is in the present case is a coil spring 128. In this case, the coil spring 128 acts on the Einschwenkseite 129 of the locking lever 109. The coil spring 128 itself is arranged in a receptacle of the lever receptacle 113 and can also be fixed by a corresponding means on the locking lever 109.

On the Ausschwenkseite 119 of the locking lever 109 is, moreover, following the locking recess 120, a bridging region 130, which is ultimately provided for bridging the gap 131 between the forend 121 and the strike plate 105. The bridging region 130 merges via an insertion bevel 132 into a rounded tip 133, which ensures the insertion of the detent lever 109 into the opening 134 of the striking plate 104.

Incidentally, it follows from the individual representations that no spring element is provided between the bolt guide 107 and the bolt 15 in order to move the bolt 15 from the retracted position into the locking position. Although the latch 15 is spring-loaded for movement in the locking position, but the spring load is applied outside of the switching mechanism 14, namely within the counter-box 1, wherein the spring force is transmitted via the drive rod 12 to the latch 15.

Hereinafter, the function of the switching mechanism 14 based on the Fig. 21 to 32nd received. The show Fig. 21 to 25 the movement of the bolt 15, which is located below the strike plate 105. This means that the door is in the closed position.

In Fig. 21 the locking position is shown. The latch 15 is fully immersed in the opening 134 of the striker 105. Due to the lock on the switch lock 14, the door in question can not be opened. In the locking position of the locking lever 109 is slightly pushed out of the lever receptacle 113 to the outside, so that it protrudes from the latch 15.

In Fig. 22 the bolt 15 is opposite to the locking position Fig. 21 slightly withdrawn. The locking lever 109 has been pivoted by the downward movement over the ramp 120a for movement in the lever receptacle 113 against the spring force of the coil spring 128.

The further downward movement of the bolt 15, caused by a corresponding actuation via the pusher, not shown, of the counter box 1, leads to the in Fig. 23 shown retraction position in which the bolt 15 is retracted into the bolt guide 107. In the illustrated embodiment, the latch 15 is completely retracted into the latch guide 107. The top of the bolt 15 is not over the forend 121 over. In this state, the locking lever 109 is completely in the lever holder 113th

Now, if the pusher, not shown, moves back up to the mating box 1, this movement is transmitted to the latch 15 via the drive rod 12. In Fig. 24 It is shown that the latch 15 begins to immerse in the opening 134 of the strike plate 105. During the upward movement of the bolt 15, the latching lever 109 is initially retained at least substantially in the lever receptacle 113, since the bridging region 130 of the latching lever initially runs along the peripheral edge of the cuff opening 124. Before the bridging region 130 merges into the latching recess 120, the tip 133 of the latching lever 109 is already immersed in the opening 134 in the strike plate 105.

The further movement of the pusher back to the original state - usually with horizontally arranged handle handle - leads the latch 15 to the in Fig. 25 illustrated locking position, which ultimately the in Fig. 21 represented position corresponds.

In the FIGS. 26 to 32 now the interaction of the switching mechanism 14 is shown when opening and closing a door.

In Fig. 26 is the lock state accordingly Fig. 21 shown. Then the door is opened by pressing the lever and swinging it open.

Fig. 27 shows the retraction position when the door is swung out of the area of the strike plate 105. The bolt 15 is completely retracted into the bolt guide 107.

Subsequently, the pusher is moved back to its normal or original position. This leads to an extension of the bolt 15 relative to the bolt guide 107. Fig. 28 shows the pre-locking position, engages behind the forend 121 with the locking recess 120 the forend 121. This position is compared to in Fig. 24 shown position possible because the locking lever 109 is not hindered from swinging.

Subsequently, the door is closed again. Shortly before reaching the closed position of the door, the latch strikes 15 with the case slope 110 at the peripheral edge of the striker 105. This condition is in Fig. 29 shown.

As a result of the further pivoting movement of the door, the latch 15 is forced over the latch bevel 110 into a downward movement relative to the latch guide 107. Parallel to the downward movement of the bolt 5, the locking lever 109 is forced over the ramp 122 to a pivoting into the lever holder 113. This is in Fig. 30 shown.

In a further closing movement of the door, the bolt 15, as soon as it is completely below the opening 134 in the strike plate 105, pressed by the spring force of the provided in the mating box 1, not shown, spring upwards. This results first in the Fig. 24 shown state and then the in Fig. 32 illustrated state.

Fig. 32 again shows the final locking state.

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

upper bar connection

11

lower bar connection

12

upper bar

13

lower bar

14

switch lock

15

bars

16

guide

17

switching nut

18

linkage

19

pivoting lever

20

top end

21

lower end

22

poor

23

actuating section

24

drainage area

25

pull bar

26

mandrel

27

poor

28

linkage

29

mandrel

30

drainage area

31

locking device

32

locking lever

33

feather

34

mandrel

35

nose

36

contact section

37

approach ramp

38

feather

39

stulp

40

release lever

41

Long hole

42

mandrel

43

top end

44

lower end

105

striking plate

107

bolt guide

109

locking lever

110

catch slope

111

flattening

112

attack

113

lever accommodation

114

bearing pin

115

drilling

116

drilling

117

admission

118

opening

119

Ausschwenkseite

120

recess

120a

approach ramp

121

stulp

122

locking sleeve

123

screw opening

124

Stulpöffnung

125

flattening

126

attack

127

Through opening

128

coil spring

129

Einschwenkseite

130

bridging region

131

gap

132

chamfer

133

top

134

opening

Claims (15)

Counter box (1) or mortise lock, with an upper bar connection (10) for connecting an upper bar (12), a lower bar connection (11) for connection of a lower bar (13) and a lock nut (17) for actuation lock mechanism for retracting and extending the rod terminals (10, 11), wherein the lock mechanism is designed such that for locking the rods (12, 13) initially only the upper rod terminal (10) extends, while the lower rod terminal (11) in the retracted position via a Locking device (31) is locked and wherein only after reaching a predetermined extended position of the upper bar connection (10) the locking device (31) unlocked and the lower bar connection (11) is released from the retracted position and extends, so that a delayed extension movement of the lower Bar connection (11) opposite the upper bar connection (10),
characterized,
in that a switch lock (14) with latch (15) is assigned to the upper bar connection (11), which is provided for switching from an activated state, in particular with a smaller bar projection, into a locked state, in particular with maximum bar projection, and in that the lock mechanism is designed such that the release of the lower bar connection (11) is only initiated when the switching mechanism (14) switches from the activated state to the locked state. Mating box or mortise lock according to claim 1, characterized in that the lock mechanism has a pull rod (25), which is coupled to the lower rod connection (11) and can be actuated via the shift nut (17), with a stop. Counter box or mortise lock according to claim 1 or 2, characterized in that the locking device (31) in the direction of the tie rod (25) spring-loaded, preferably via the switch lock (14) unlockable locking lever (32) with a counter-stop for cooperation with the stop of Drawbar (25) for blocking the drawbar (25) in the retracted position. Counter box or mortise lock according to one of the preceding claims, characterized in that the locking device (31) has an unlocking lever (40) acting on the locking lever (32) for unlocking and / or that the unlocking lever (40) is linearly displaceable and that, preferably the release lever (40) is not spring-loaded as such. Mating box or mortise lock according to one of the preceding claims, characterized in that a with the upper rod connection (10) coupled by the Schaltnuss (17) actuated, in particular as a pivot lever (19) formed lever is provided for unlocking the release lever (40 ) acts. Counter box or mortise lock according to one of the preceding claims, characterized in that for the delayed extension movement of the lower rod connection (11), the movement of the lever, in particular designed as a pivot lever (19) and / or Entsperrhebels (40) not directly to the unlocking of the locking lever (32) is implemented. Counter box or mortise lock according to one of the preceding claims, characterized in that the unlocking lever (40) and the lever designed in particular as a pivot lever (19) in the retracted or partially extended state of the upper bar connection (10) at their mutually facing ends (21, 43) are spaced and / or that the stop on the tie rod (25) is formed as an extended nose (35). Mating box or mortise lock according to one of the preceding claims, characterized in that the switching mechanism (3) is provided for cooperation with a frame-side striking plate (105) and has a bolt guide (107) for the bolt (15) guided therein, which between one in the A locking lever (109) is pivotally mounted on the bolt (15), which in a lying between the retracted position and the locking position Vorraststellung with the bolt guide (107 ) and holds the latch (15) in the pre-locked position. Mating box or mortise lock according to claim 8, characterized in that the latching lever (109) is designed in such a way and in a lever receptacle (113) of the bolt (15) is mounted such that upon movement of the bolt (14) from the Pre-locking position in the retracted position of the locking lever (109) in the lever holder (113) is pivoted and out of engagement with the bolt guide (107). Counter box or mortise lock according to claim 8 or 9, characterized in that the locking lever (109) on its Ausschwenkseite (119) has a latching recess (120) for cooperation with the forend (121) of the bolt guide (107) and that, preferably, a through-opening (127) for the locking lever (109) on a locking sleeve (122) of the bolt guide (107) is provided. Mating box or mortise lock according to one of the preceding claims, characterized in that on the upper side of the latching recess (120) is provided a run-on slope (120a) for interacting with the forend (121) during pivoting of the latching lever (19) and / or that adjoins the Locking recess (120) of the locking lever (109) connects a bridging region (130) for bridging the gap (131) between the forend (121) and the striking plate (105). Counter box or mortise lock according to one of the preceding claims, characterized in that the latching lever (109) is spring-loaded for pivoting out of the lever receptacle (113) and that, preferably, on the Einschwenkseite (129) of the latching lever (109) acting spring element on the bolt ( 15) is provided. Counter box or mortise lock according to one of the preceding claims, characterized in that the locking lever (109) at its free end following the bridging region (130) has an insertion bevel (132) for inserting the locking lever (109) into the opening (134) of the striking plate (105). Against box or mortise lock according to any one of the preceding claims, characterized in that the latch (15) is spring-loaded for movement in the locking position and that the spring load is applied outside of the switch latch. Counter box or mortise lock according to one of the preceding claims, characterized in that in the locking sleeve (122) has a stop (126) for cooperating with a corresponding stop (112) on the bolt (15) is provided, so that the bolt (15) in the installed state of the switching mechanism (14) is not on the face side of the bolt guide (122) can be pulled.

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