EP3702556A1 - Latch lock, preferably a roller latch lock, with an actuating device - Google Patents

Abstract

The invention relates to a latch lock (1) with a lock housing (2) and a latch (3) arranged in the lock housing (2), preferably designed as a roller latch, the latch (3) being mounted displaceably along a first direction (4), whereby the latch (3) is acted upon by a latch spring means (5) arranged in the lock housing (2) and the latch (3) protrudes from a faceplate (7) of the lock housing. According to the invention, at least one actuating device (8) is provided which is designed to move the latch (3) along the first direction (4) beyond the first distance (6) into a locked state of the latch (3) effect and move the latch (3) to a second distance (9) beyond the first distance (6) and / or lock the latch (3) at least against being pushed in in the first state and / or at the first distance (6) to effect.

Description

The invention relates to a latch lock, preferably a roller latch lock, with a lock housing and a latch, in particular a roller latch, arranged in the lock housing, the latch being mounted displaceably along a first direction, the latch being acted upon by a latch spring means arranged in the lock housing and the latch in a first state protrudes at a first distance from a faceplate of the lock housing or projects beyond this.

Latch locks or roller latch locks are known from the prior art, which are intended to engage a door leaf or door leaf, for example in a strike plate in the door frame. It is usually provided that a latch of the latch lock or roller latch lock causes this engagement. In particular, pressure must be exerted on the door leaf in the corresponding direction for a door leaf to snap into place or for it to be released again.

In terms of fire protection, it is necessary to design doors that may be equipped with a latch lock or a roller latch lock so that a fire protection door is provided. This includes, among other things, that a door, up to the point in time at which the so-called fire protection foamers react in the door and these lock the door, do not automatically due to the negative pressure and / or the temperature delay in the frame or door frame and in the door leaf or door leaf may open. In particular, it should no longer be possible to open a door in the event of a fire.

The object of the present invention is now to provide a possibility for fire protection when a latch lock or a roller latch lock is used in a door.

The aforementioned object is achieved according to the invention by a latch lock according to patent claim 1 and by a roller latch lock according to patent claim 14. The subclaims relate to advantageous designs.

In the case of a latch lock of the type mentioned at the outset, the aforementioned object is at least essentially achieved in that at least one actuating device is provided which is designed to move the latch along the first direction beyond the first distance to effect a locking state of the trap and to move the trap to a second distance, the second distance going beyond the first distance.

Typically, a latch lock or a roller latch lock has a latch which engages in a corresponding strike plate, for example in the door frame. The latch protrudes from the lock housing at a first distance in such a way that a locking position of the entire door can be reached and / or left by moving the door.

It has been recognized by the invention that setting, adjusting and / or changing, in particular increasing, the distance at which the latch protrudes from the faceplate can easily lock the door when the door is closed. According to the invention, an actuating device is proposed for this purpose, which can preferably cause the door to lock in the event of a fire with the door closed.

The actuation device is preferably designed in such a way that the latch is shifted into a locked state of the latch and / or the latch itself is also locked, in particular if it is necessary for fire protection reasons. For example, the actuating device can react to a fire and / or a temperature effect and / or also an external signal and act mechanically, for example.

The actuating device is preferably at least partially, preferably essentially or particularly preferably completely integrated in the latch lock. This enables a very space-saving design. In this way, doors that were originally provided with a generic latch lock or roller latch lock can finally be converted or upgraded into fire protection doors in a simple manner using an embodiment of the invention.

The invention provides a highly effective fire protection solution which is preferably completely integrated into a latch lock or a roller latch lock. In particular, the invention makes it possible to dispense with further external components for fire protection of a door. In addition to the lock, no other external devices are required to prevent the door leaf from swinging open to block. The fire protection is integrated into a lock as an additional function.

A first stop is preferably provided on the latch and a second stop cooperating with the first stop is provided on the lock housing, the stops cooperating in the first state and at least one stop being variable such that the interaction of the stops can be canceled. The trap is preferably guided on a trap guide along the first direction.

Preferably, two corresponding stops prevent the latch from being pushed out of the faceplate by striking one another and thus cooperating. In particular, a stop is variable or movable, so that the interaction can be canceled, as is necessary, for example, in the event of a fire. The cancellation of the interaction leads in particular to the latch spring means arranged in the lock housing pushing the latch further out of the faceplate beyond the first state or first distance into a second distance. In this way, the door can be blocked for a desired locking state or locking.

In particular, at least one stop is adjustable in order to be able to adjust the protrusion of the latch from the faceplate or the first state or distance. This can, for example, be implemented in a space-saving manner by arranging at least one stop on a threaded rod and / or making the one stop adjustable by means of an adjusting means. The adjustable stop can preferably be adjusted at least substantially parallel to the first direction, for example by means of an adjusting screw, which can in particular be accessible from the outside of the faceplate.

A stop is preferably displaceable or variable, so that in its pushed-in state the interaction of the stops is canceled and the interaction of the stops is possible in its pushed-out state. It is preferred that the variable stop is in an extended state corresponding to the first state for the interaction.

At least one stop is preferably mounted displaceably or variably along a second direction, the second direction being different from the first Can distinguish direction. The second direction can run transversely to the first direction. It can also be provided that the second direction runs at least substantially parallel to the first direction. In addition, along the second direction, the at least one stop can be used to achieve an pushed-in state in which the interaction of the stops is canceled, with cooperation of the stops being provided in the extended state.

In a preferred embodiment, it is advantageous that the pushed-in state of at least one stop and thus the cancellation of the interaction of the stops can be achieved over a comparatively short distance and / or in a small installation space, in particular when the second direction is oriented transversely to the first direction. In addition, in the extended state it can advantageously be brought about that there is at least partial self-locking if the first and second directions differ from one another and in particular are transverse to one another.

Because a stop can be displaced in a direction that differs from the direction of movement of the latch, an interaction of the stops can be canceled in a simple manner over a short distance by disengaging the displaceable or variable stop.

A stop spring means is preferably provided in order to preload and / or hold the variable stop in its extended state and / or in a state necessary for cooperation. The stop spring means in particular contributes to the fact that the stops can interact. The stop spring means is preferably a simple spiral spring. However, it is also possible for the stop spring means to be integrated into the respective stop. It is not necessary here for the stop spring means to exercise a spring function. The stop spring means preferably performs the function of preloading and / or holding the variable stop in the extended state.

In a further embodiment, a decoupling device interacts with the variable stop and the actuating device in order to move the variable stop from the extended state into the inserted state.

Preferably, the decoupling device is at least partially movable, in particular rotatable and / or pivotable, mounted on the latch and / or on the lock housing.

In a further preferred embodiment, the decoupling device has a multi-limbed lever, the first limb of which interacts with the actuating device and the second limb with the variable stop, in particular wherein a movement and / or rotation and / or lever movement of the lever leads to a displacement of the variable stop .

The decoupling device preferably has an at least two-legged lever, preferably with two legs being offset from one another with respect to a pivot point, in particular at an angle between 60 and 120 ° with one another. The preferably provided angle between two legs enables a compact design. For example, the arrangement of the lever is at least partially, preferably completely, possible within the trap.

The interaction of the second leg with the variable stop, which is present in a preferred embodiment, is designed in such a way that the movement of the leg leads to the movement of the variable stop. It is thus possible for the leg to be rotated with respect to its fulcrum and thus to bring about an at least regionally linear movement of the variable stop.

It is further preferred that an engagement area for interacting with the decoupling device and / or the actuating device is arranged on the variable stop, in particular wherein the variable stop has an opening for engagement of the second leg and / or the lever.

In a preferred embodiment, the contact surface of the variable stop enables the lever of the decoupling device to slide off, so that a displacement movement of the variable stop is brought about by a movement of the lever.

In a further embodiment, the actuating device can have an actuating means, the actuating means being designed to be operated by a To interact with the shape change with the decoupling device, in particular to exert a force and / or to cause a movement, the actuating means being arranged in or on the latch and / or the lock housing.

For example, it can be provided that the actuating means of the actuating device acts on the decoupling device by changing its shape in response to an external influence and bringing about a force and ultimately a movement of the lever or other components.

A change in shape can be understood to mean, for example, a physical change in shape, an expansion of a material, a change in the structure of a material and / or also a movement of an actuator, such as a pneumatic or hydraulic or electrical actuator unit.

A preferred embodiment provides that the actuating means is arranged and / or guided in a guide of the actuating device and / or in a further guide, in particular at least partially in and / or on the latch and / or in and / or on the lock housing and is guided is supported with one end during the change in shape in and / or on the lock housing and / or in and / or on the latch.

The actuating means preferably expands when the shape is changed and the decoupling device is actuated and / or is actuated in the expanded state. This is preferably done in that the actuating means on the one hand rests against at least part of the decoupling device, and on the other hand against the latch or also on the lock housing. The actuation means is preferably arranged in and / or on a guide of the actuation device, which can be located, for example, in the latch and / or on the lock housing. The guide of the actuation device is designed so that the actuation means remains at least essentially in its position and / or that the actuation means changes shape or changes position as far as possible only in one spatial direction.

In a further embodiment, the actuation means, triggered by heat and / or temperature and / or external influence, in particular an input signal, makes the change in shape or applies it. Alternatively or independently It can be provided that the actuating means has a bimetal and / or has a shape memory alloy, in particular a nitinol alloy, or consists of it.

The actuating means can preferably change its shape in the event of a fire which releases heat. For example, it can also be provided that the actuating means comes into action when a certain temperature range above room temperature is exceeded.

Another embodiment provides that the actuating means comprises a metal. In particular, a bimetal can be used, e.g. a shape memory alloy or combinations thereof. Actuating means made of bimetal or a shape memory alloy are advantageous because they can show a very large change in shape in a temperature-sensitive manner. For example, it is possible for the actuating means to expand when the temperature rises and to act on the decoupling device, so that the interaction of the two stops can be canceled. In this way, in the event of a fire, it can be ensured in a very simple manner that a door located in the vicinity of the fire and equipped with a lock according to the invention is secured against opening.

The actuating means preferably comprises or consists of nitinol. Nitinol is a shape memory alloy that can be used particularly advantageously as an actuation means, since a shape memory alloy can cause large thermal expansion and / or change in shape of the material when a limit temperature is exceeded and mechanical movements can be triggered within or in connection with the lock.

Shape memory alloys are special metals, that is, metallic materials or metal alloys, which can exist in different crystal structures. Alternatively, a shape memory alloy can also be referred to as a memory metal. This name can be traced back to the phenomenon that the shape memory alloy apparently - despite the subsequent strong deformation - can remember an earlier shape and can also assume this shape again.

Nitinol is the name of a nickel-titanium alloy and ultimately an acronym for "nicel titanium naval ordance laboratory". The alloy can be used up to approx. 650 ° C, is corrosion-resistant and high-strength.

Furthermore, shape memory alloys are distinguished in particular by the fact that, in comparison to conventional metallic alloys, a higher, preferably at least 10% higher, deformation of the material can be made possible when the limit temperature is exceeded.

As an alternative or in addition, the actuating means can have an expansion element which is mounted or guided in particular on and / or on and / or in the latch and / or the lock housing. If the limit temperature is exceeded, the expansion element can at least indirectly lead to a shifting of the variable stop.

An expansion element can be understood as an expansion element, in particular a solid, gas and / or liquid that expands with increasing temperature, in particular wherein the expansion element has a working piston that can be extended when the expansion material expands. The expansion material can be arranged in a housing and in particular interact at least indirectly with the working piston. If a limit temperature is exceeded, a change in volume depending on the material or expansion material can be brought about, which is preferably proportional to the extension and the distance covered by the working piston. In particular, the working piston is at least partially connected to the decoupling device and / or the variable stop.

The change in shape of the actuating means is preferably oriented at least substantially parallel to the first direction.

In a further embodiment, the actuating means is arranged in such a way that, when it changes shape, it acts on the first leg of the lever with a force and / or moves the first leg of the lever, so that the variable stop is moved from the extended state to the inserted state or is inserted.

More preferably, at least one stop can have at least one material that melts at temperatures below 100 ° C., in particular wax, which, when it melts, eliminates the interaction of the stops.

It is particularly advantageous to use an easily meltable material, for example one that has wax or consists of it, for at least one stop. Depending on its composition, an easily meltable material can melt at a temperature that can arise near the door in the event of a fire. “Slightly meltable” is understood to mean a material which at a temperature below 350.degree. C., preferably below 100.degree. C., particularly preferably in the range between 40.degree. C. and 90.degree. C., in particular between 50.degree. C. and 60.degree partially melts.

It is also possible for a stop to be made of a metal, preferably an alloy, which has a deformation or melting behavior that eliminates the interaction of the two stops when a certain temperature is exceeded.

In one embodiment, at least one stop can have a bimetal which, under the influence of temperature, cancels the interaction of the stops.

For example, a stop made of a bimetal can deform under the influence of temperature, so that the two stops are prevented from interacting. It is possible for such a stop to pivot away from a bimetal.

At least one stop, in particular the variable stop, can preferably be part of an electronic device which, when actuated, in particular in the event of fire, can move the stop, in particular transversely to the first direction, in order to cancel the interaction of the two stops.

In an alternative embodiment of the invention, a latch lock is provided, which is designed as a roller latch lock and has a lock housing and a latch, in particular a roller latch, arranged in the lock housing, the latch being mounted displaceably along a first direction, the latch by means of an im Lock housing arranged latch spring means is acted upon, wherein the latch protrudes in a first state, preferably at a first distance from a face plate of the lock housing, and at least an actuating device is provided which is designed to lock the latch at least against being pushed in in the first state and / or at the first distance.

Locking can preferably also be understood to mean an increase in the retention force or an increase in the extension force acting on the latch, so that a locked and locked door equipped with a latch lock can no longer be opened non-destructively by pressing the door leaf.

It is preferably provided that in the event of a fire it should only be prevented that the door can still be opened during normal use of a door which is equipped with a latch lock. This fire protection principle is preferably implemented by increasing the force with which the trap is applied. An adequate increase in the force with which the trap is applied can prevent the trap from being pushed in. Alternatively or additionally, it is also possible for the roller latch to be mechanically blocked against retraction. Blocking is preferably also to be understood as locking.

In a further embodiment of the latch lock, a movable stop means is provided, which is preferably pushed by the actuating device behind or against the latch, so that the latch is locked against being pushed in. It is possible for the movable stop means to be part of an electronic device which effects such a locking with an external signal.

More preferably, the decoupling device and / or the actuating device and / or at least one stop has / have a movable stop means for locking the latch.

Further features, advantages and possible applications of the present invention emerge from the following description of exemplary embodiments with the aid of the drawing and the drawing itself. All of the features described and / or illustrated form the subject matter of the present invention individually or in any combination, regardless of their Summary in the claims or their reference back.

Fig. 1

eine Seitenansicht auf ein bevorzugtes erfindungsgemäßes Fallenschloss, das als Rollfallenschloss ausgebildet ist, wobei die Falle mit dem ersten Abstand aus dem Stulp hervorragt und wobei sich das Fallenschloss im ersten Zustand befindet,

Fig. 2

eine Vorderansicht auf das Fallenschloss aus Fig. 1,

Fig. 3

eine Draufsicht auf das Fallenschloss aus Fig. 1,

Fig. 4

eine Draufsicht auf das Fallenschloss aus Fig. 1 in einer Schnittdarstellung entsprechend des Schnitts IV-IV,

Fig. 5

eine Seitenansicht auf das Fallenschloss aus Fig. 1 mit teilweise ausgeblendetem Schlossgehäuse,

Fig. 6

eine Seitenansicht auf das Fallenschloss aus Fig. 3 in einer Schnittdarstellung entsprechend des Schnitts VI-VI,

Fig. 7

eine Seitenansicht auf das Fallenschloss aus Fig. 1, wobei ein korrespondierendes Schließblech dargestellt ist, in das die Falle eingerastet ist,

Fig. 8

eine Seitenansicht auf das Fallenschloss mit Schließblech aus Fig. 7 in einer Schnittdarstellung analog zu Schnitt IV-IV aus Fig. 4,

Fig. 9

eine Seitenansicht auf ein Fallenschloss, ausgeführt zumindest im Wesentlichen nach Fig. 7, wobei davon abweichend die Falle mit dem zweiten Abstand aus dem Stulp hervorragt und im Verriegelungszustand befindlich ist,

Fig. 10

eine Vorderansicht auf das Fallenschloss aus Fig. 9,

Fig. 11

eine Draufsicht auf das Fallenschloss aus Fig. 9,

Fig. 12

eine Draufsicht auf das Fallenschloss aus Fig. 9 in einer Schnittdarstellung entsprechend des Schnitts XII-XII,

Fig. 13

eine Seitenansicht auf das Fallenschloss aus Fig. 9 mit teilweise ausgeblendetem Schlossgehäuse und

Fig. 14

eine Seitenansicht auf das Fallenschloss aus Fig. 11 in einer Schnittdarstellung entsprechend des Schnitts XIV-XIV.

It shows:

Fig. 1

a side view of a preferred latch lock according to the invention, which is designed as a roller latch lock, wherein the latch protrudes with the first distance from the face plate and the latch lock is in the first state,

Fig. 2

a front view of the latch lock Fig. 1 ,

Fig. 3

a top view of the latch lock Fig. 1 ,

Fig. 4

a top view of the latch lock Fig. 1 in a sectional view corresponding to section IV-IV,

Fig. 5

a side view of the latch lock Fig. 1 with partially hidden lock housing,

Fig. 6

a side view of the latch lock Fig. 3 in a sectional view corresponding to section VI-VI,

Fig. 7

a side view of the latch lock Fig. 1 showing a corresponding strike plate into which the latch is locked,

Fig. 8

a side view of the latch lock with strike plate Fig. 7 in a sectional view analogous to section IV-IV Fig. 4 ,

Fig. 9

a side view of a latch lock, executed at least essentially according to Fig. 7 Deviating from this, the latch protrudes from the faceplate at the second distance and is in the locked state,

Fig. 10

a front view of the latch lock Fig. 9 ,

Fig. 11

a top view of the latch lock Fig. 9 ,

Fig. 12

a top view of the latch lock Fig. 9 in a sectional view corresponding to section XII-XII,

Fig. 13

a side view of the latch lock Fig. 9 with partially hidden lock housing and

Fig. 14

a side view of the latch lock Fig. 11 in a sectional view corresponding to section XIV-XIV.

The Fig. 1 shows a latch lock 1 which is provided as a roller latch lock with a latch 3 designed as a roller latch. The latch lock 1 has a lock housing 2, the latch 3 being arranged in the lock housing 2. The latch 3 is mounted displaceably along a first direction 4 and acted upon by a latch spring means 5 arranged in the lock housing 2. Furthermore, the latch 3 protrudes from a faceplate 7 of the lock housing 2 in a first state at a first distance 6.

The Figures 2 to 8 show the latch lock 1 Fig. 1 in different representations, sectional views and / or with partially hidden components. The Figures 7 and 8 are also supplemented by a corresponding strike plate 22 into which the latch 3 is locked. In the installed state, the latch lock 1 is located in a door leaf, while the strike plate 22 is provided in the door frame.

The Fig. 2 shows a front view in which in particular an opening or a passage in the faceplate 7 for the latch 3 can be seen. An adjusting means 25, which is used to adjust the first distance 6, is arranged on the faceplate 7. In the present embodiment, the faceplate 7 is screwed to the lock housing via at least three screws. Furthermore, bores are arranged on the faceplate at the edge, which can be used for assembly, for example for assembly on the door or on the door leaf.

It shows the Fig. 3 in particular that the lock housing 2 has an angled part which runs parallel to the faceplate 7 to which the faceplate 7 is screwed. In particular, the lock housing 2 is constructed in several parts and / or in such a way that it can be opened in a simple manner, for example for maintenance purposes, without, for example, having to remove the latch 3 from its guide 22.

The Fig. 4 shows an interior view of the latch lock 1, at least in some areas, wherein in particular the latch spring means 5 and the actuating means 20 guided on its guide 21 can be seen. It is so that the latch spring means 5 contacts the latch 3 in a recess 3 a on the latch 3. In particular, the recess 3a ensures that the latch spring means 5 is guided on it when the latch 3 is displaced. The latch spring means 5 can slide in the recess 3a when the latch 3 moves.

The Fig. 5, 6 , 7 and 8 show a side view of the latch lock 1 of FIG Fig. 1 , the housing 2 being shown open to illustrate the embodiment, in that it is at least partially not shown or hidden ( Fig. 5 and 7th ) or by showing the arrangement in section ( Fig. 6 and 8th ). The trap 3 is displaceable in the first direction 4 and for this purpose is guided on the trap guide 22. In addition, the latch 3 is acted upon by the latch spring means 5. The latch 3 strikes with the movable or variable first stop 10 against the adjustable second stop 11. The first stop 10 is at least partially arranged in or on the latch 3 and protrudes from the latch 3, the first stop 10 is shown in the extended state.

It show the Fig. 5, 6 , 7 and 8 in particular, how the two stops 10, 11 interact and how the first distance can be changed. The two stops 10, 11 interact here so that the latch spring means 5 does not push the latch 3 out further than the first distance 6.

As in particular from the Fig. 5, 6 , 7, and 8 As can be seen, the position of the second stop 11 parallel to the first direction 4 can be adjusted via the adjustment means 25, which is at least partially designed as a screw, so that the protrusion of the latch 3 in the first state is at least indirectly and manually adjustable. The first distance 6, which describes the protrusion of the outermost tip of the trap 3 from the faceplate 7 in the first direction 4, can be set. The first distance 6 is chosen so that the gap between the door leaf and door frame is bridged and the latch 3 or the roller 23 engages in the strike plate opening 27 of the strike plate 26 so slightly that it snaps into place, but the door leaf is nevertheless easily unlocked again or can be disengaged.

In the first state, the roller axis 24 of the roller 23 is still in front of the strike plate opening 27, the roller 23 protruding into or through the strike plate opening 27 at least in some areas.

A force is applied to the first stop 10 by means of the stop spring means 13, so that it is ensured that the first stop 10 remains in the extended state. However, it is provided that the first stop 10 is movable in the second direction 12 against the spring force of the stop spring means 13.

Provision is now made for a rotation of the two-legged lever 15 of the decoupling device 14 to cause the first stop 10 to move in the direction of its pushed-in state, in that the second leg 17 of the lever 15 acts on the engagement area 18 of the first stop 10. The attack area 18 is accessible through an opening 19.

In the embodiment shown in the figures, the rotation of the lever 15 is caused by an actuation of the first leg 16 of the lever 15, in that the actuating means 20 of the actuating device 8 changes its shape and on the one hand on the first leg 16 and on the other hand on the lock housing 2 and / or at the trap 3 repels. The actuating means 20 in the present case consists of a nitinol alloy. The actuating means 20 is at least partially guided in or on the latch 3; if it changes shape, it can also be guided in the lock housing 2. For this purpose, at least one guide of the actuating device 21 is provided.

The Fig. 5, 6 , 7 and 8 show the engagement of the second leg 17 in the opening 19 of the first stop 10, the Fig. 6 and 8th allow a detailed view due to the sectional views. The second leg 17 rests against the engagement area 18 of the first stop 10 and the stop spring means 13 presses the first stop 10 on the opposite side against the second leg 17 in its extended state. In this case, the actuation means 20 of the actuation device 8 is arranged in the latch 3 at least essentially without force.

The Figures 7 and 8 show the latch 3, which protrudes into a corresponding strike plate 26 and is locked into this. It is clear that trap 3 with the correctly set first state or first distance 6 can engage in the strike plate 26 to prevent a door, which is equipped with the lock 1 and the strike plate 26, from pivoting open, for example in the event of a slight wind or other low forces acting on the door leaf, to secure. The latch 3 can leave the area of the strike plate 26 in that when the door is pivoted open, the latch 3, with the first distance 6 set correctly, rolls up by means of the roller 23 on the strike plate 26 and the latch 3 finally depresses.

The Fig. 9 shows a preferred latch lock 1 according to the invention, which at least essentially according to Fig. 7 is executed, the case 3 is in the locked state. The locking state is characterized in that the latch 3 is displaced beyond the first state and thus the first distance 6. This can have the effect that a door that is equipped with a latch lock 1 can no longer be opened, since the latch 3 or roller latch can no longer disengage properly, that is, non-destructively, from the strike plate 26.

In the Figures 9-14 trap 3 is in the locked state. In the present case, the latch 3 protrudes at least partially through the strike plate 26 in the locked state. In the locked state, the roller 23 protrudes at least on one side, ie at least with its roller axis 24, through the strike plate 26 or strike plate opening 27, which prevents the roll 23 from rolling up on the strike plate 26 and thus preventing it from disengaging.

Like in particular the Figures 9, 12 , 13 and 14 show, the latch 3 in the present locked state is not only acted upon by the latch spring means 5, but also by the actuating means 20. The lever 15 of the decoupling device 14 is tilted in the locked state, since the actuating means 20 is changed in shape and is against the first leg 16 of the lever 15 and the lock housing 2 along the guide of the actuating device 21 presses. As a result, the decoupling device 14 is actuated and the first stop 10 is moved into the pushed-in state.

The Figures 13 and 14 show how the interaction of the two stops 10, 11 is canceled in the locked state. The first stop 10 is in the pushed-in state, since the lever 15 or the first leg 16 holds the first stop 10 against the force of the stop spring means 13. The lever 15 is again subjected to force on the second leg 17 by the deformed actuating means 20 of the actuating device 8, which is supported on the lock housing 2.

In order to achieve the locked state, it is provided that the latch spring means 5 and / or the actuating means 20 and / or the actuating device 8 pushes out the latch 3 beyond the first distance 6. For this it is necessary that the interaction of the stops 10, 11 is canceled. Figures 13 and 14 show the locking state with the interaction of the stops 10, 11 canceled Guide the actuator 21 is performed. The stop spring means 13 is in the pushed-in state of the first stop 10 in a compressed state.

Further features of the latch lock 1 and the use of this latch lock 1 are explained below, all of the features being understood as preferred features. It must first be ensured that a first distance 6, which characterizes the protrusion of the latch 3 from the faceplate 7, is set, for example by means of the setting means 25. The first distance 6 should be selected such that the latch lock 1 can engage and disengage with the latch 3 on the strike plate 26. During the latching or unlatching of the latch 3 in the strike plate 26, the latch 3 is moved in the first direction 4, and the first distance 6 is temporarily undershot. In this case, the action of the latch 3 with the latch spring means 5 ensures that the latch 3 is always pushed out again as long as the strike plate 26 is no longer in the way. The latch 3 strikes with a first stop 10, which can be arranged variably or displaceably transversely to the first direction 4, against a second stop 11 which is adjustable via the setting means 25.

The pushing in of the latch 3 against the spring force of the latch spring means 5 while the first stop 10 is extended and the subsequent extension of the latch 3 along the first direction 4, with the two stops 10, 11 then striking one another, basically characterizes the interaction of the two Stops 10, 11. When using the latch lock 1, it is irrelevant whether one of the two stops 10, 11 can be displaced in a second direction 12 that differs from the first direction 4.

In the event that the actuating means 20 of the actuating device 8 expands and / or changes its shape, it is supported on the one hand on the first leg 16 of the lever 15 of the decoupling device 14. On the other hand, the actuating means 20 is supported on the lock housing 2 and / or on the latch 3, so that it sets the lever 15 in rotation. In this case, the second leg 17 of the lever 15 acts against the engagement area 18 of the first stop 10, whereby a displacement of the first stop 10 in the second direction 12 is effected.

The actuating means 20 can, for example, react to heating such as in the event of a fire. The actuating means 20 can be designed as a nitinol alloy, which makes it possible to bring about a considerable change in shape when a limit temperature typical for the material is exceeded. With a sufficiently large change in shape of the actuating means 20, the variable stop 10 is ultimately moved into the pushed-in state against the spring force of the stop spring means 13, so that the interaction of the two stops 10, 11 is canceled. Finally, the force exerted by the latch spring means 5 and / or the actuating means 20 leads to the latch 3 being pushed out in the first direction 4 beyond the first distance 6, so that the locked state is reached. In the locked state, the latch 3 protrudes from the faceplate 7 at a second distance 9, which is greater than the first distance 6. In the second state or second distance 9, the latch 3 protrudes more.

In the locked state of the case 3, which is in the Figures 9-14 is shown, the roller 23 is dipped with more than half of the maximum roller diameter through the strike plate opening 27, the roller axis 24 being arranged behind the rear of the strike plate 26.

It is provided that the roller axis 24 of the roller 23 is located in the locked state at least in the area inside the strike plate opening 27 so that the latch lock 1 can no longer be opened when the latch 3 is locked. In the locked state, the roller axis 24 is preferably immersed completely through the strike plate 26, so that the roller 23 is immersed at least on one side through the strike plate 26. In the event that an inclined latch is provided as latch 3, it applies in an analogous manner that the inclined area of latch 3 at least partially, preferably completely, through the strike plate opening 27 must be dipped through so that the locking state is brought about.

In an embodiment not shown, at least one of the two stops 10, 11 can be pushed out and / or pushed in by an actuator, preferably an electric or hydraulic or pneumatic actuator. In this way, the interaction of the two stops 10, 11 can be prevented with the aid of the actuator. Ultimately, in this embodiment, not shown, the locking state can also be brought about if the interaction of the two stops 10, 11 is prevented or canceled.

Furthermore, according to an embodiment not shown, at least one stop can consist of wax and / or have wax, so that the interaction of the two stops 10, 11 is canceled when the temperature rises, which stimulates or loosens the wax.

It is also possible for at least one of the two stops to have a bimetal which, when the temperature increases, deforms in such a way that the interaction of the two stops 10, 11 is canceled.

According to a further embodiment, not shown, the actuation means 20 of the actuation device 8 can act in the manner of the decoupling device 14, so that it causes a stop 10, 11 to be shifted indirectly or directly, preferably without rotation.

According to a further embodiment not shown, the decoupling device 14 can be arranged at least essentially in the lock housing 2, the first stop 10 also being arranged in the latch lock 2 and the second stop 11 being arranged in the latch 3. In this embodiment, the actuating means 20 of the actuating device 8 can be arranged and / or guided essentially in the lock housing 2.

According to a preferred further embodiment, not shown, the first stop 10 and / or the second stop 11 can be both adjustable and variable.

In addition, another embodiment, not shown, provides that the latch 3 is locked at least against being pushed in in a first state and / or at a first distance 6, the latch 3 not having to be changed in position. For example, it can be provided that for locking a movable stop means is pushed behind or against the latch 3, which locks the latch 3 against being pushed in without the position of the latch 3 being changed. However, it is also possible that the latch 3 is additionally pushed out here. It can also be provided that the latch 3 is only subjected to at least one additional force for locking, without the latch being pushed out any further, which makes it difficult or even impossible to slide the latch 3 in to open a door.

The aforementioned statements and all related features individually or in combination with one another also apply analogously to an embodiment of a latch lock 1 with a latch 3 designed as a sloping latch, a beveled area on the latch 3 designed as a sloping latch basically fulfilling the function of the roller 23 .

List of reference symbols:

1

Latch lock

2

Lock housing

3

Cases

4th

first direction

5

Latch spring means

6th

first distance

7th

Faceplate

8th

Actuator

9

second distance

10

first stop

11

second stop

12

second direction

13

Stop spring means

14th

Decoupling device

15th

lever

16

first leg

17th

second leg

18th

Attack area

19th

opening

20th

Actuating means

21st

Guide the actuating device

22nd

Trap management

23

role

24

Roller axis

25th

Adjustment means

26th

Striking plate

27

Striking plate opening

Claims (15)

Latch lock (1), preferably designed as a roller latch lock, with a lock housing (2) and a latch (3) arranged in the lock housing (2), the latch (3) being mounted displaceably along a first direction (4), the latch (3) is acted upon by a latch spring means (5) arranged in the lock housing (2) and the latch (3) protrudes from a faceplate (7) of the lock housing (2) in a first state at a first distance (6),
characterized,
that at least one actuating device (8) is provided which is designed to move the latch (3) along the first direction (4) beyond the first distance (6) into a locking state of the latch (3) and the latch (3) to move to a second distance (9) which goes beyond the first distance (6). Latch lock according to claim 1, characterized in that a first stop (10) is provided on the latch (3) and a second stop (11) cooperating with the first stop (10) is provided on the lock housing (2) so that the stops (10, 11) interact in the first state and that at least one stop, preferably the first stop (10), is variable in such a way that the interaction of the stops (10, 11) can be canceled. Latch lock according to claim 1 or 2, characterized in that at least one stop (10, 11) is mounted displaceably and / or variably in a second direction (12), in particular running transversely to the first direction (4), in order to achieve the To cancel the interaction of the stops (10, 11), while the stops (10, 11) cooperate in the extended state. Latch lock according to one of the preceding claims, characterized in that a stop spring means (13) is provided in order to preload and / or hold the variable stop (10, 11) in the extended state. Latch lock according to one of the preceding claims, characterized in that a decoupling device (14) is provided which interacts with the variable stop (10, 11) and the actuating device (8) to to move the variable stop (10, 11) from the extended state to the retracted state. Latch lock according to one of the preceding claims, characterized in that the decoupling device (14) is at least partially moveable, in particular rotatable or pivotable, mounted on the latch (3) or on the lock housing (2) and / or that the decoupling device (14) is a multi-legged Lever (15) whose first leg (16) interacts with the actuating device (8) and whose second leg (17) interacts with the variable stop (10, 11), in particular with a movement and / or rotation and / or lever movement of the lever (15) leads to a shift of the variable stop (10,11). Latch lock according to one of the preceding claims, characterized in that an engagement area (18) is provided on the variable stop (10, 11) to interact with the second leg (17), in particular with an opening (19) in the variable stop (10, 11) ) is provided for engaging the second leg (17). Latch lock according to one of the preceding claims, characterized in that the actuating device (8) has an actuating means (20), the actuating means (20) being designed to interact with the decoupling device (14) by changing its shape, in particular to exert force and / or to cause a movement, in particular wherein the actuating means (20) is arranged in or on the latch (3) and / or the lock housing (2). Latch lock according to one of the preceding claims, characterized in that the actuating means (20) is arranged in a guide of the actuating device (21), in particular at least partially in the latch (3) and / or in the lock housing (2), and has one end when changing shape on the lock housing (2) and / or on the latch (3). Latch lock according to one of the preceding claims, characterized in that the actuating means (20) triggered by heat and / or temperature and / or external influence, in particular an input signal, changes the shape and / or that the actuating means (20) has a bimetal and / or has or consists of a shape memory alloy, in particular a nitinol alloy. Latch lock according to one of the preceding claims, characterized in that the change in shape of the actuating means (20) takes place parallel to the first direction (4). Latch lock according to one of the preceding claims, characterized in that the actuating means (20) is arranged in such a way that it applies a force to the first leg (16) of the lever (15) and / or the first leg (16) of the Lever (15) moved so that the variable stop (10,11) is moved from the extended state to the inserted state. Latch lock according to one of the preceding claims, characterized in that at least one stop (10, 11) has a material, in particular wax, which melts at temperatures below 100 ° C and which, when melted, cancels the interaction of the stops (10, 11) and / or that at least one stop (10, 11) has a bimetal which, under the influence of temperature, cancels the interaction of the stops (10, 11). Latch lock (1), designed as a roller latch lock, with a lock housing (2) and a latch (3) arranged as a roller latch arranged in the lock housing (2), the latch (3) being mounted displaceably along a first direction (4), wherein the latch (3) is acted upon by a latch spring means (5) arranged in the lock housing (2), the latch (3) protruding from a faceplate (7) of the lock housing in a first state at a first distance (6), and at least an actuating device (8) is provided which is designed to lock the latch (3) at least against being pushed in in the first state and / or at the first distance (6). Latch lock according to claim 14, characterized in that a movable stop means (23) is provided which is pushed by the actuating device (8) behind or against the latch (3) so that the latch (3) is locked against being pushed in.

Images