DE102019001721B4 - Locking device - Google Patents

Abstract

Locking device (1) for arrangement in a frame (2) of a fire protection and / or panic door (3), in particular intended to interact with an additional locking means (4) of the fire protection and / or panic door (3), with at least one pivotably mounted latch holder (5), the latch holder (5) being pivotable between a pivoted-in and a pivoted-out position, the latch holder (5) being assigned a locking device (6) which, when a limit temperature is exceeded, locks the latch holder (5) in the pivoted-out position is designed, wherein the latch holder (5) is pivotably mounted on an axle (7), a housing (9) for receiving the latch holder (5) mounted on the axle (7) is provided, the axle (7) in the Housing (9) is held, the locking device (6) having at least one lock which can be adjusted between a release position and a locking position relative to the housing (9) when the locking device (6) is triggered (10) for locking the latch holder (5), a bevel (14) for the latch (10) being provided on the latch holder (5) along the movement path of the latch (10).

Description

The invention relates to a locking device for a fire protection and / or panic door.

Fire protection doors represent a fire protection closure that can be used in partition walls or fire walls. A fire door can also be designed as a smoke door. Ultimately, fire doors are used to delay the spread of a fire in a building and / or at least partially prevent it. For this purpose, fire doors are designed to close automatically, whereby they are coupled, for example, to a fire alarm that triggers the closing of the door.

If fire doors are installed in a building, the applicable building regulations, which specify the respective fire protection requirements, must be applied. Most fire protection doors are fire-resistant, highly fire-retardant and / or tight and / or self-closing.

Fire doors can be classified into different subgroups under building regulations. Among other things, fire protection doors can be broken down into tightly closing doors, smoke protection doors and fire protection doors. In the case of tightly closing doors, it is provided that the door leaves or the corresponding frames have a circumferential seal. In the case of smoke protection doors, the passage of smoke should be prevented in the event of a fire, this door shape being designed to close automatically. A self-closing process in the event of a fire is also provided for fire protection doors. Fire doors have a high level of fire resistance and, if necessary, are designed to be smoke-tight.

If fire doors are used in escape routes, they are ultimately subject to the requirement of a "panic door". Panic doors are doors that can be used in escape routes and are therefore easy to open from the inside and to the full width. In particular, panic doors meet the requirements of DIN EN 1125 (as of February 2019). If necessary, the fire door is opened by the actuating means, for example the door handle.

In practice, however, in the event of a fire, especially in the case of large door leaves - even if they are initially securely closed - the door leaf is at a high temperature and with the temperature difference and / or the pressure difference and / or the resulting material stresses warps and / or shifts in some places relative to the frame. In the end, the door is “pushed open” at these points. As a result, the door leaf is shifted relative to the door frame, as a result of which such a gap can lead to the fire spreading in the event of a fire. This can ultimately also occur with fire protection doors, which results in a hazard.

In practice, systems are known which are intended to prevent such displacement or distortion in the event of a fire. For this purpose, it is provided that a pin mounted in the door leaf extends in the event of a fire and the door leaf is locked by engaging the door frame. An extension of the pin can be triggered, for example, by melting a wax. Ultimately, when it is extended or when it is triggered, the pin engages in an opening in the frame that corresponds to it.

The pin, which connects the door leaf to the door frame in the event of a fire, prevents the door leaf from warping, so that ultimately no gap that could serve to spread the fire or reduce the fire-retardant effect of the door can arise.

The disadvantage of this “warping protection” for the door leaf, however, is that these doors cannot be used as fire doors in escape routes or as panic doors. Ultimately, the pin that has been extended cannot return to its original position, or only with difficulty, after it has been extended. For example, if melting wax is used for triggering, the extension of the pin is irreversible. Opening the door in the event of a fire is therefore difficult or impossible.

Ultimately, this represents a danger for people who are “trapped” in a building in the event of a fire. For the escape route in particular, it is crucial that the fire doors can be opened relatively easily and a person can escape. If opening were not possible, a fleeing person quickly panics, which makes the escape process more difficult, if not prevented at all.

the DE 10 2005 009 995 A1 shows a locking / release device for a pivot latch of a door opener with a pivotable locking lever which locks or releases the pivot latch, the locking / release device also containing an emergency lock with a bolt and a temperature-active means for bolt actuation.

the DE 20 2008 018 590 U1 relates to a door opener unit with a receiving space for engaging the lock latch of the door lock, this receiving space being at least partially limited in a door opening direction by a lock latch guide surface on which the lock latch slides when the door is opened until it exits the receiving space.

the DE 10 2005 048 693 A1 relates to a door opener arrangement with a door opener which comprises a pivot latch which can be pivoted into the door opener and which has a stop.

The object of the present invention is now to avoid or at least substantially reduce the aforementioned disadvantages in a locking device.

According to the invention, a locking device for arrangement in a frame of a fire protection and / or panic door is provided, which serves in particular to interact with an additional locking means of the fire protection and / or panic door, with at least one pivotably mounted latch holder, with the latch holder between a pivoted-in and a pivoted-out position can be pivoted, the latch holder being assigned a locking device which is designed to lock the latch holder in the pivoted-out position when a limit temperature is exceeded.

In the locked state, the latch holder is locked at least essentially non-pivotably. If the temperature falls below the limit again, provision is preferably made for the latch holder to be unlocked again.

The embodiment of the latch holder according to the invention enables the fire protection closure to be reliably ensured by the fire protection and / or panic door, in particular in the case of automatic fire protection and / or panic doors. It can be prevented that the door leaf is warped relative to the door frame, whereby a gap - from which smoke or fire could emerge - can at least essentially be avoided. Ultimately, the latch holder according to the invention is designed in such a way that in the event of a fire - or at an increased temperature - triggering the locking device causes the latch holder to be blocked. In the locked position of the latch holder, in the closed state of the fire protection and / or panic door, the latch holder ultimately interacts with the additional locking means, in particular an inclined latch, for locking. The interaction between the additional locking means and the latch holder enables distortion of the door leaf against the door frame to be avoided.

In addition, according to the invention it is particularly possible that an escape route can continue to be guaranteed by the locking device. The fire protection and / or panic door can be opened in a regular and, in particular, very easily, regardless of the locking of the latch holder - in particular also in the locked state of the latch holder. It is therefore advantageous in comparison to the prior art that a seal of the fire protection and / or panic door to ensure a fire protection closure on the one hand and the "panic function" (ie simple opening of the door in the event of fire) on the other hand are ensured can. These two essential functions, on the one hand, in combination in the event of a fire, prevent the fire from spreading and, on the other hand, ensure that a person escaping through the escape route is not hindered or hindered in escape by locked and non-opening fire doors.

Ultimately, every fire protection and / or panic door can be equipped with the locking device according to the invention in a comparatively simple way, which prevents the door leaf from warping in the event of a fire and also enables the door to be opened from the closed state. The fire protection requirements are thus met by the locking device according to the invention.

Furthermore, the locking device according to the invention also in particular does not require any electrical functionality or an electrical connection, so that the mode of operation can be ensured in the event of a fire, in particular in the event of a power failure.

In addition, the fire protection requirements can also be implemented in a very simple manner and very cost-effectively and an improvement in fire protection can be achieved, especially in the case of existing doors by retrofitting with the locking device according to the invention.

Another advantageous aspect of the locking device is that it is designed to interact with an “automatic” fire protection and / or panic door. In the case of an automatic door, it is ultimately provided that the door can be opened and closed independently of an actuation of the actuating means, in particular the door handle.

The actuation of the door can be specified, for example, by a control device. The door can be opened by pressing a button or the like. In addition, the doors can be designed in such a way that they are held in the open state.

In the event of a fire, it can be provided in particular that the door is pivoted closed or closed from the pivoted door position. This can (still) be specified by the control device. In particular, however, the locking device is of the, in particular electronic, Control of the door independently - ie not linked to the locking device.

Furthermore, the locking device is characterized in that when it is inserted into an “automatic” fire protection and / or panic door, opening and closing of the door specified by the control device is not hindered in the event that it is not triggered.

Automatic door operation is only blocked in the event of a fire or when a limit temperature is exceeded and after the locking device has been triggered. In particular, it is no longer possible for the control device to open the door. However, as mentioned above, an escape route can still be guaranteed, in particular using an actuating means such as a lever handle to open the door.

According to the invention it is provided that the latch holder is pivotably mounted on an axis. The latch holder preferably has at least one, in particular two, bearing openings for receiving the axle. The bearing openings can in particular be provided laterally or on the end faces of the latch holder. In particular, the axis can form the axis of rotation of the latch holder. A free space, along which the axis extends, can be provided between the bearing openings.

In addition, according to the invention, a housing is provided for receiving the latch holder mounted on the axle. The axis is held or stored in the housing and preferably be arranged completely within the housing. The housing can be provided to protect the latch holder and / or to form a compact unit of the locking device. Through the housing, the locking device can be arranged as a “structural unit” in the frame of a fire protection and / or panic door. In addition, the latch holder can also be at least indirectly connected to the housing and, in particular, be mounted on the housing via the axis. The housing can be designed in such a way that the latch holder can be accommodated in the housing at least in some areas and the pivoting of the latch holder can still be ensured by a certain amount of clearance in the housing.

According to the invention, the locking device has at least one lock for locking the latch holder, which lock is adjustable relative to the housing between a release position and a locking position when the locking device is triggered. The lock can be designed as a locking body. Ultimately, the lock means that the latch holder can be prevented from pivoting about the axis, the lock providing a resistance for this, in particular a resistance that cannot be overcome.

This resistance is caused by the locked position of the lock. As a result, the lock can "jam" or lock the latch holder in the locked position. An adjustment of the lock from the release position to the locked position is only possible when triggered. The locking device is triggered when a limit temperature is exceeded. The lock is only moved from the release position to the locked position after the limit temperature has been exceeded. The lock can be mounted on the axle and preferably surrounds the axle at least in some areas. The lock can have an at least substantially cuboid outer shape.

The lock can also be assigned a guide projection for longitudinally displaceable mounting. In particular, it is provided that the lock is fixed in the release position during “regular” use or when it is not triggered.

In the release position of the lock, the latch holder is in particular not hindered in its pivotable mounting.

In a further, very particularly preferred embodiment, it is provided that the locking device has at least one triggering means acting on the lock. The triggering means can be designed to adjust the lock when the limit temperature is exceeded. For example, the limit temperature is detected or the limit temperature is exceeded due to an expansion and / or change in the material. In particular, the triggering means is also mounted on the axle and preferably encloses the axle at least in some areas. The triggering means can be connected to the lock and / or, in the event of triggering, leads to a shift from the release position into the blocking position.

In addition, the triggering means can be designed as a trigger spring comprising and / or consisting of a shape memory alloy. The release spring preferably has and / or consists of nitinol. A shape-memory alloy is particularly advantageous for the triggering means, since with a shape-memory alloy, when a limit temperature is exceeded, thermal expansion of the material takes place and the lock is shifted into the locked state. If the limit temperature is no longer exceeded, for example due to cooling, the release spring returns to its original state, which leads to unlocking.

Shape-memory alloys are special metals (ie metallic materials) or metal alloys that 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 "Nickel Titanium Naval Ordnance 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, compared 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.

In particular, the triggering means can be designed as an adjusting element, the triggering spring providing a restoring element. The release spring can be designed in such a way that the, in particular geometrical, state caused by heating corresponds to a position in which the lock can be moved into the locked position. A reversible change in shape of the release spring is particularly preferably implemented so that the release spring can return to its original state after being deformed. This is particularly advantageous in the case of “false triggering”, since it enables the locking device to be returned to its regular operating state in a comparatively simple manner.

As an alternative or in addition, it can be provided that the triggering means has an expansion element which, in particular, is mounted on and / or on the axle. If the limit temperature is exceeded, the expansion element can lead to a shift in the lock.

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. When a limit temperature is exceeded, a change in volume dependent on the material-dependent phase transition 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 indirectly connected to the lock to move it in the event of a fire.

Furthermore, in a further preferred embodiment, a counter spring of the locking device acting on the lock is provided. The counter spring can be designed in such a way that it holds the lock in the release position when the release means is not released. The counter spring is particularly preferably designed in such a way that the lock can be brought back from the locked position into the release position, provided that the release means has returned to its original state.

Ultimately, the counter spring can be provided to keep the lock out of engagement with the latch holder during regular use of the door - i.e. not in the event of a fire. The advantage of the counter spring is that, in combination with the release mechanism, it enables the locking device to be reused after it has been released. This is particularly advantageous if, for example, the locking device has been triggered by an increased temperature - and not by a fire, with the locking device subsequently being designed to be able to be returned or reversed to the regular release position after it has been triggered. In this context, it goes without saying that, in particular, the spring force of the counter spring is less than the actuating force of the triggering means, in particular the spring force of the triggering spring.

Furthermore, in the event of a release, the release spring or the release means can overcome the spring force of the counter spring and accordingly bring the lock from the release position into the locked position. The counter spring can interact with the lock and at least indirectly, preferably directly, be connected to the lock. The counter spring can preferably also be mounted on the axle. In addition, the counter spring can be firmly connected to the latch holder and / or the axle.

It is particularly preferred that the release means, in particular the release spring, the lock and / or the counter spring are arranged or mounted on the axle. Particularly preferably, the release spring and / or the counter spring are each designed as a helical spring or spiral spring.

In addition, according to the invention, a ramp for the lock is provided on the latch holder along the path of movement of the lock. The run-up slope is preferably provided on the inner surface of the latch holder facing the axis. The path of movement of the lock is understood in particular to be the path from the release position to the blocked position. The ramp can be provided in the locking position of the lock. The run-up slope is particularly advantageous for so-called "intermediate positions" of the latch holder. For example, if the additional locking means is not yet completely arranged behind the latch holder or if the door is not yet completely closed, the latch holder is not in its maximally pivoted-out position. However, by running the lock on the run-up slope, the latch holder can be locked in a pivoted-out position, but not in the maximum pivoted-out position, with the latch holder being guided into the maximum pivoted position due to the pressure exerted by the lock, which also enables it to close the door is forced. In the event of a fire, this is particularly advantageous because only a completely closed fire protection and / or panic door can impair or reduce the spread of a fire in a building. Ultimately, the run-up slope can be provided to support the pivoting movement of the latch holder into the maximum pivoted-out position.

The latch holder is preferably spring-loaded by means of at least one spring in order to pivot it from the pivoted-in position into the pivoted-out position. The spring can in particular be arranged on the axis. The spring-loaded arrangement of the latch holder can ensure that the latch holder is automatically reset from the pivoted-in position to the pivoted-out position. Particularly preferably, the spring is also designed as a helical spring or spiral spring.

Further particularly preferably, an end limb of the spring is at least essentially firmly, in particular positively, connected to the latch holder. For the arrangement of an end limb of the spring, the latch holder can have a projection which can have an opening for receiving the end limb.

In particular, it can be provided that the spring is arranged on an area of the axle that has a different, preferably larger, diameter than another area (s) of the axle, in particular on which the triggering means, the lock and / or the counter spring are arranged, having. The bearing opening of the latch holder can be arranged on the area of the axle having the smaller diameter. The spring can be designed in such a way that it enables the latch holder to be pivoted in, but initiates a pivoting process or a pivoting out of the latch holder after it has been pivoted in.

Furthermore, an adjusting device for adjusting the spring force of the spring can be provided. The adjusting device preferably acts on one end limb of the spring, in particular on a further end limb of the spring. Thus, one end limb of the spring can be connected to the latch holder and the other end limb of the spring can be connected to the actuating device. The adjusting device is particularly preferably designed as a grub screw, the grub screw being able to act on the end limb of the spring. The spring force can be adjusted by means of the grub screw, so that the spring-loaded pivoting operation of the latch holder is designed to be variable with regard to its spring force. In particular, the adjusting device for adjusting the spring force is also designed in the installed state of the locking device, in particular the adjusting device being accessible at least in some areas on the frame side of the fire protection and / or panic door.

In a further, very particularly preferred embodiment, a faceplate with a faceplate opening is provided. The faceplate can be used to fasten the housing, in particular wherein the faceplate can close to the frame and / or the door edge when the locking device is inserted into a frame. The faceplate can therefore be built into the fire protection and / or panic door.

Ultimately, the faceplate can still be visible in the door edge after installation. The housing can therefore be inserted into the frame of the fire protection and / or panic door and preferably at least indirectly connected to the frame via the faceplate.

In its swiveled-out position, the latch holder can protrude into the faceplate opening or protrude from the faceplate opening. In particular, a metal-containing material and / or metal is provided as the material for the faceplate. The faceplate enables the locking device as a whole to be inserted into the frame and fastened to it, in particular wherein the components of the locking device that belong together can be securely connected to one another.

In particular, the grub screw can be arranged in the faceplate and accessible from the outside. In addition, the housing can also interact with the faceplate in a form-fitting manner and / or be connected to the faceplate in a force-fitting manner.

Furthermore, the faceplate can also have screw openings which can be provided for arrangement on the frame, in particular for receiving screws or fastening means.

In a further embodiment of the concept of the invention, at least one slot can be provided in the faceplate, which is used in areas Recording the lock is formed. The slot can in particular be designed in such a way that the longitudinal movement of the lock is guaranteed in the event of triggering, the lock being able to be guided and / or held through the slot.

The latch holder preferably has a latch holder head for receiving the free end of the additional locking means and a latch holder lower body. The latch holder head and the latch holder lower body can be firmly connected to one another.

The latch holder head has in particular at least one projection which is designed to grip behind the free end of the additional locking means in the locked and / or closed state of the fire protection and / or panic door. Ultimately, the latch holder head interacts with the free end of the additional locking means.

In addition, it can also be provided that the latch holder head has a plurality of projections, in particular three projections, and / or a projection extending at least substantially along the entire width of the latch holder head.

In a further preferred embodiment, projections of the faceplate projecting into the faceplate opening are provided, which are in particular designed as 45 ° +/- 20 ° bevels. The projections of the faceplate are preferably arranged in the swiveled-in state of the latch holder in the free spaces resulting between the projections of the latch holder head and preferably fill them up at least substantially.

The projections of the faceplate, in particular designed as inclined legs, are preferably provided for the additional locking means to slide past when the fire protection and / or panic door is opened and / or closed. When opening and / or closing the fire protection and / or panic door, the additional locking means can strike both the latch holder and the projections of the faceplate and / or be guided along the projections of the faceplate.

The latch holder head can ultimately be designed in such a way that during regular use of the door - that is, when the release means is not triggered - the latch holder can be pivoted inward by pressure on the latch holder head. The pressure can in particular be exerted on the projection of the latch holder head by the additional locking means or the free end of the additional locking means. Due to the pressure exerted on the latch holder head, the free end of the additional locking means can slide past the faceplate.

This is particularly advantageous in the case of an automatic fire protection and / or panic door, since the door can be opened without drawing in the additional locking means, in particular by exerting pressure on the door leaf. The latch holder is not locked when the release means is not released and can guarantee a pivoting movement. If the door falls into the lock, it can be provided that the latch holder then swings out again as soon as the additional locking means is arranged behind the projection of the latch head. Ultimately, the projection can engage behind the free end of the additional locking means.

The projection can be designed in such a way that the additional locking means can be pushed into the door leaf even after the release means has been triggered and the latch holder is in the locked state and can thus be guided away from below the projection or past it. In this way, the fire protection and / or panic door can also be opened in the event of a fire or when a limit temperature is exceeded.

The latch holder head is particularly preferably adjustable relative to the latch holder lower body. Adjustability can in particular take place in steps, for example in steps of 3 mm ± 1 mm. For the purpose of adjustment, it can be provided in particular that the latch holder lower body has a corrugation on the arrangement surface facing the latch holder head.

Alternatively or additionally, the latch holder head can have a further corrugation on the further arrangement surface facing the latch holder lower body, in particular wherein the corrugation is designed to correspond to the further corrugation. Due to the corresponding formation of the corrugations, in particular a form-fitting connection via the interlocking of the arrangement surface and the further arrangement surface can be made possible. An adjustment can take place in particular as a function of the individual grooves of the corrugations.

As explained above, the latch holder head is preferably releasably connected to the latch holder lower body in a form-fitting and / or force-fitting manner, preferably by means of at least two screws. The latch holder head can have at least one elongated hole, preferably two elongated holes, for receiving the screws. The formation as an elongated hole enables a relative displacement of the latch holder head to the latch holder lower body. The latch holder is particularly preferably arranged in the area between the bearing openings of the latch holder. The arrangement surface that faces the latch holder head can be on the inner surface that the Axis facing, be arranged opposite side of the latch holder lower body. The bearing openings and the projection for arranging the spring can be provided on the latch holder lower body.

Furthermore, the present invention relates to a door locking device with a locking device according to at least one of the embodiments described above and at least one additional locking means.

According to the invention, it goes without saying that the advantages and the preferred configurations of the locking device also apply in the same way to the door locking device. In order to avoid unnecessary repetitions, no explanations are given in this regard.

The latch holder of the locking device can be designed to hold and / or block the additional locking means in the locked and / or closed state of the door.

Furthermore, the additional locking means can particularly preferably be designed as a latch, in particular as an inclined latch, which interacts with the latch holder, in particular the latch holder head. In the closed state of the fire protection and / or panic door, in particular the free end of the inclined latch can engage behind the projection of the latch holder head.

In a particularly preferred embodiment of the inventive concept, it is provided that an actuating means, preferably a door handle, is assigned to the door locking device. The additional locking means can be designed to be actuatable, in particular retractable and extendable, by the actuating means. In particular, the additional locking means can be arranged within the door leaf and, in its extended position, can at least partially engage in the frame via the faceplate opening of the faceplate.

In particular, in the closed state, when the latch holder is blocked, it is made possible that the door leaf does not warp against the door frame, the latch holder holding and locking the latch or the additional locking means.

In the event of a fire, actuation of the additional locking means enables the door to be opened easily and without problems even when the latch holder is in the locked state, the door being able to be pivoted open along its entire opening width. This simple opening enables an escaping person to easily pass through the fire protection and / or panic door. In this way, the building technology requirements with regard to fire protection are met in particular.

Preferably, even after the limit temperature is exceeded and / or during a fire, the additional locking means can be actuated via the actuating means, the additional locking means thus being able to be brought out of engagement with the latch holder. This can be provided for opening the door. Ultimately, this ensures the previously mentioned panic function of the fire protection and / or panic door.

Moreover, it goes without saying that the aforementioned intervals and range limits contain any intermediate intervals and individual values and are to be regarded as disclosed as being essential to the invention, even if these intermediate intervals and individual values are not specifically specified.

Further features, advantages and possible applications of the present invention emerge from the following description of exemplary embodiments with reference to 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.

• 1 eine schematische perspektivische Darstellung einer in einem Rahmen angeordneten Brandschutz- und/oder Paniktür,
• 2 eine schematische perspektivische Darstellung einer erfindungsgemäßen Schließvorrichtung,
• 3 eine schematische Querschnittsansicht einer weiteren Ausführungsform einer erfindungsgemäßen Schließvorrichtung,
• 4A eine schematische Querschnittsdarstellung einer in einen Rahmen eingesetzten weiteren Ausführungsform einer erfindungsgemäßen Schließvorrichtung,
• 4B eine schematische Querschnittsdarstellung einer in einen Rahmen eingesetzten weiteren Ausführungsform einer erfindungsgemäßen Schließvorrichtung,
• 5 eine schematische perspektivische Explosionsansicht einer erfindungsgemäßen Schließvorrichtung,
• 6A eine schematische perspektivische Darstellung eines erfindungsgemäßen Fallenhalterunterkörpers,
• 6B eine weitere schematische perspektivische Darstellung des in 6a gezeigten Fallenhalterunterkörpers,
• 7A eine schematische perspektivische Darstellung eines erfindungsgemäßen Fallenhalterkopfes,
• 7B eine weitere schematische perspektivische Darstellung des in 7a gezeigten Fallenhalterkopfes,
• 8 eine schematische perspektivische Darstellung einer erfindungsgemäßen Auslösefeder,
• 9 eine schematische Querschnittsdarstellung des erfindungsgemäßen Gehäuses,
• 10 eine schematische Draufsicht auf eine erfindungsgemäße Schließvorrichtung,
• 11A eine schematische Querschnittsansicht einer in einen Rahmen eingesetzten erfindungsgemäßen Schließvorrichtung in einem ersten Zustand,
• 11B eine schematische Querschnittsansicht einer in einen Rahmen eingesetzten erfindungsgemäßen Schließvorrichtung in einem zweiten Zustand,
• 11C eine schematische Querschnittsansicht einer in einen Rahmen eingesetzten erfindungsgemäßen Schließvorrichtung in einem dritten Zustand,
• 11D eine schematische Querschnittsansicht einer in einen Rahmen eingesetzten erfindungsgemäßen Schließvorrichtung in einem vierten Zustand,
• 11E eine schematische Querschnittsansicht einer in einem Rahmen eingesetzten erfindungsgemäßen Schließvorrichtung in einem fünften Zustand und
• 12 eine schematische Ansicht einer in einen Rahmen eingesetzten Brandschutz- und/oder Paniktür.

It shows:

• 1 a schematic perspective illustration of a fire protection and / or panic door arranged in a frame,
• 2 a schematic perspective illustration of a locking device according to the invention,
• 3 a schematic cross-sectional view of a further embodiment of a locking device according to the invention,
• 4A a schematic cross-sectional representation of a further embodiment of a locking device according to the invention inserted in a frame,
• 4B a schematic cross-sectional representation of a further embodiment of a locking device according to the invention inserted in a frame,
• 5 a schematic perspective exploded view of a locking device according to the invention,
• 6A a schematic perspective illustration of a latch holder lower body according to the invention,
• 6B a further schematic perspective illustration of the in 6a shown lower body of the latch holder,
• 7A a schematic perspective illustration of a latch holder head according to the invention,
• 7B a further schematic perspective illustration of the in 7a shown lap holder head,
• 8th a schematic perspective illustration of a release spring according to the invention,
• 9 a schematic cross-sectional view of the housing according to the invention,
• 10 a schematic plan view of a locking device according to the invention,
• 11A a schematic cross-sectional view of a locking device according to the invention inserted into a frame in a first state,
• 11B a schematic cross-sectional view of a locking device according to the invention inserted into a frame in a second state,
• 11C a schematic cross-sectional view of a locking device according to the invention inserted into a frame in a third state,
• 11D a schematic cross-sectional view of a locking device according to the invention inserted into a frame in a fourth state,
• 11E a schematic cross-sectional view of a locking device according to the invention used in a frame in a fifth state and FIG
• 12th a schematic view of a fire protection and / or panic door inserted into a frame.

2 shows a locking device 1 for arrangement in a frame 2 a fire protection and / or panic door 3 . The fire protection and / or panic door 3 is in the frame 2 used and pivoted to it. In particular, the in 1 illustrated door 3 both the function in a fire protection door and a panic door.

1 indicates that the locking device 1 to interact with an additional locking means 4th the fire protection and / or panic door 3 is trained. As an additional locking means 4th a sloping trap is provided in the illustrated embodiment. The additional locking means 4th can have an actuator 27 how out 12th can be seen to be actuated. In particular, by actuating the actuating means 27 retraction and extension of the additional locking means 4th be made.

3 shows that the locking device 1 at least one pivotably mounted latch holder 5 having. The trap holder 5 works with the additional locking means 4th how out 4a and 4b visible when opening and closing the fire protection and / or panic door 3 together.

the 11A until 11E make it clear that the trap keeper 5 is pivotable between a pivoted-in and a pivoted-out position. the 11C until 11E show the pivoted position of the latch holder 5 . 11B shows the swiveled-in position of the latch holder 5 .

Also shows 3 that the trap keeper 5 a locking device 6th assigned. The locking device 6th is used to lock the latch holder when a limit temperature is exceeded 5 formed in the pivoted position.

In 4B is a locked trap holder 5 shown, the swiveled-out state with the additional locking means 4th cooperates in such a way that warping relative to the frame 2 the fire protection and / or panic door 3 is avoided in the event of fire.

In the locked state of the latch holder 5 it is provided that pivoting into the pivoted-in position is no longer possible.

In addition, shows 3 that the trap keeper 5 pivotable on one axis 7th is stored. 5 shows that the trap keeper 5 at least one storage opening 8th to accommodate the axis 7th having. In 5 is further shown that the latch holder 5 two openings 8th to accommodate the axis 7th having. One on the axis 7th arranged latch holder 5 goes, for example, from the 3 emerged.

In 2 is shown that a housing 9 to accommodate the on the axis 7th stored latch holder 5 is provided. The axis 7th is how out 3 visible in the housing 9 held or stored. There are corresponding openings in the housing 9 to accommodate the axis 7th intended. These openings are, for example, from the in 5 illustrated exploded view of the individual parts of the locking device 1 evident.

the 4A and 4B show that the locking device 6th at least one when the locking device is triggered 6th relative to the housing 9 between a release position and a locked position adjustable lock 10 to lock the latch holder 5 having.

A trip can occur when the limit temperature is exceeded. In 4A is the release position of the lock 10 shown. In 4B is a lock arranged in the locked position 10 shown. The trap holder 5 is with the in 4B illustrated embodiment by the lock 10 locked so that it is ultimately immovable. The barrier 10 can inside the case 9 along the axis 7th be moved.

There is also one on the lock 10 Acting triggering agent 11th the locking device 6th provided that when the limit temperature is exceeded to adjust the lock 10 is trained. In the 4A and 4B illustrated embodiments is the triggering means 11th as a release spring having a shape-memory alloy 12th educated. In particular, the release spring 12th Have nitinol and / or consist of it and / or consist of a shape-memory alloy.

If the limit temperature is exceeded, the shape of the release spring changes 12th , causing a shift in the lock 10 is initiated so that the lock 10 can be moved from a release position to the locked position.

In addition, the triggering means 11th or the release spring 12th return to its original state after falling below the limit temperature. In the release position of the latch holder 5 is ultimately no interaction between the release spring 12th and the trap holder 5 intended. However, after a limit temperature has been exceeded and in the event of a trip - that is, when the trip spring expands 12th - one through the lock 10 enabled locking of the latch holder 5 intended.

What is not shown is that the triggering means 10 can also have an expansion element and that due to the change in volume of an expansion material enclosed in a housing of the expansion element, in particular in the form of a material, a liquid and / or a gas, the lock is triggered 10 he follows. For example, the expansion element can have a working piston which, by changing the volume of the expansion material, the lock 10 along the axis 7th can move.

In 3 is shown that the locking device 6th one on the lock 10 acting counter spring 13th having. The counter spring 13th is at least indirectly, in the illustrated embodiment directly, with the lock 10 connected. The counter spring 13th is designed in such a way that it has the lock 10 in the non-triggered state of the triggering device 11th holds in the release position. Ultimately, the counter spring enables 13th that lock 10 out of engagement with the latch holder 5 stands. The lock is in the locked position 10 on a ledge 28 of the latch holder body 5 how out 5 visible, arranged.

The spring force of the counter spring 13th is selected such that in the release position - that is, in the non-triggered state of the triggering means 11th - the barrier 10 not with the lead 28 of the trapper 5 cooperates and thus out of engagement with the latch holder 5 is. In particular, the spring force is the counter spring 13th less than the spring force of the release spring 11th in the event of a trip. Thus there is a longitudinal displacement of the lock 10 in the event of a trigger, the spring force of the counter spring 13th is overcome. In 4A the non-triggered state is shown in which the counter spring 13th the barrier 10 out of engagement with the protrusion 28 of the trapper 5 holds. In 4B becomes the spring force of the counter spring 13th overcome and this ultimately compressed, so that the lock 10 directly with her the lead 28 facing bearing surface on the projection 28 and so to the locked state of the latch holder body 5 leads.

In addition, shows 3 that the trigger 11th , the barrier 10 and the counter spring 13th on the axis 7th are arranged. In further, not shown embodiments, the triggering means 11th , the barrier 10 or the counter spring 13th on the axis 7th be arranged. Through the axis 7th ultimately becomes the path of movement of the lock 10 specified in the event of a trip. In addition, the aforementioned components 11th , 10 and 13th about the axis 7th at least indirectly connected to one another.

In 5 is shown that the trap keeper 5 along the path of movement of the lock 10 a ramp 14th for the lock 10 having. The approach slope 14th goes into the lead 28 over or forms part of the projection 28 . In the event of a trip, the lock runs 10 first on the ramp 14th and is over the ramp 14th on top of the ledge 28 how out 4b visible, arranged. The approach slope 14th allows doing that when the trap keeper 5 is not in its maximally swiveled-out position, in the event of a release the latch holder is still locked 5 is ensured. At the same time, the latch holder in particular can also 5 in its maximally swiveled out position by approaching the run-up slope 14th be convicted.

Furthermore shows 3 that the trap keeper 5 for pivoting from the pivoted into the pivoted position by means of at least one feather 15th is spring loaded. The spring 15th can on the axis 7th be arranged.

Out 5 it can be seen that the spring 15th on a thickened area of the axis 7th is arranged. The release spring 12th , the barrier 10 and the counter spring 13th can ultimately on an area of the axis having a smaller diameter 7th be arranged.

Furthermore, at least one end limb 17th the feather 15th with the trap holder 5 for pivoting the latch holder 5 cooperate. The trap keeper can do this 5 a thigh 29 have, which is ultimately directly to the end limb 17th the feather 15th can adjoin and interact with them.

The spring 15th can compared to the counter spring 13th receiving end on the axle 7th be arranged.

In 10 is shown that an actuator 16 to adjust the spring force of the spring 15th is provided. The adjusting device 16 can one on one end leg 17th the feather 15th acting grub screw 18th , as in 5 shown. The grub screw 18th can with the end leg 17th cooperate. Ultimately, the pen can 15th an end limb 17th to interact with the latch holder 5 and an end leg 17th to interact with the actuating device 16 exhibit. The grub screw 18th can ultimately be used to adjust the spring force or tension of the spring 15th serve. Thus, the pivoting or the pivoting behavior of the latch holder 5 the locking device 1 can be adapted depending on the respective application.

In 2 is shown that a faceplate 19th with a forend opening 20th , from 5 can be seen, is provided. The case 9 is on the forend 19th attached. The trap holder 5 protrudes into the faceplate opening in its swiveled-out position 20th , as in 3 shown. The faceplate 19th can be shared with the housing 9 in a frame 2 be arranged and ultimately also flush with the frame 2 to lock. Such an arrangement in a frame 2 is in the 11A until 11 E. shown.

Ultimately, it goes without saying that a flush finish of the forend 19th with the frame 2 is to be understood in such a way that at least essentially none of the functionality of the door 3 impairing level results. A small or minimal step or transition can definitely lead to the frame 2 to be available. The case 9 together with the components arranged in it, can be placed in the frame 2 used as from 4A can be seen. Insertion and removal of the locking device 1 can be done very easily using the faceplate 19th respectively.

5 shows that the faceplate 19th at least one, in the illustrated embodiment two, inclined legs 21 has, which in the faceplate opening 20th towards the trap keeper 5 protrude.

The oblique legs 21 can allow the additional locking means to slide past 4th be provided as that from the 11A until 11E can be seen. Ultimately, the oblique legs can 21 between protrusions 25th of the trapper 5 be arranged. The oblique legs 21 can also be at an angle of about 45 ° +/- 15 ° to the surface of the faceplate 19th stick out as in 5 is shown.

The faceplate 19th can with the frame 2 Via a plurality of screws that fit into corresponding openings in the faceplate 19th intervene, be fastened.

the 5 shows that the trap keeper 5 a trapper head 22nd to accommodate the free end 23 of the additional locking means 4th and a trapper lower body 24 having. The interaction between the latch holder head 22nd and the free end 23 of the additional locking means 4th is for example in 11 E. shown.

The trapper lower body 24 can the thigh 29 to interact with the spring 15th exhibit. In addition, the lower body of the trap holder 24 the lead 28 as well as the bevel 14th to interact with the lock 10 exhibit.

The trapper head 22nd has at least one protrusion 25th on, as in 5 shown, for engaging behind the additional locking means 4th in the locked and / or closed state of the fire protection and / or panic door 3 is trained. In 5 is shown that the trapper head 22nd ultimately three leads 25th having. What is not shown is that a projection 25th at least substantially along the entire width of the latch holder head 22nd can extend. Between the protrusions 25th of the trap keeper head 22nd can use the inclined legs 21 of the cuff 19th intervention. Ultimately, the lead can 25th also beveled to interact with the free end 23 of the additional locking means 4th be trained.

Furthermore, the latch holder head 22nd relative to the lower body of the trap keeper 24 be adjustable. Adjustment can be achieved, for example, by corrugation on the latch holder head 22nd facing arrangement surface of the latch holder lower body 24 be provided. This is in 6A shown. The trapper head 22nd can do one Have corresponding corrugation, so that when the latch holder head is arranged 22nd on the trapper lower body 24 an interlocking of the corrugations corresponding to one another results. The latch holder head can be positioned along the individual grooves 22nd relative to the lower body of the trap keeper 24 be moved.

Furthermore, the trap holder head 22nd form-fitting and / or force-fitting with the latch holder lower body 24 be releasably connected. For a positive connection of the latch holder head 22nd with the trapper lower body 24 at least two screws can be provided. The screws can go through in the latch holder head 22nd arranged elongated holes be passed. The trapper lower body 24 also has openings provided for receiving the screws.

Furthermore, the trap holder head 22nd a head start 32 have that into another opening 33 of the trapper lower body 24 can intervene. The respective openings and projections are designed in such a way that a relative displacement of the latch holder head 22nd to the trapper lower body 24 is guaranteed.

8th shows a schematic perspective illustration of the release spring 12th , which can be designed as a helical spring. Also the counter spring 13th and the pen 15th can be designed as a helical spring, as in 5 shown.

10 shows a representation on the underside of the faceplate 19th as well as the trap holder 5 . It is made clear that the trap keeper 5 into the forend opening 20th of the cuff 19th protrudes.

In 1 is shown to be a door locking device 26th a locking device 1 according to one of the embodiments described above and at least one additional locking means 4th for locking the fire protection and / or panic door 3 having. The fire protection and / or panic door 3 is for example in 12th shown. The additional locking means 4th the fire protection and / or panic door 3 is to work together and to intervene in the framework 2 intended. In addition, the additional locking means acts 4th with the trap holder 5 , especially the trap holder head 22nd , together.

As a fire protection and / or panic door 3 an automatic and self-closing door can be provided. An automatic door is characterized in that it is not operated by an operating means 27 opening of the door can be initiated. In this context, the free end slides 23 of the additional locking means 4th on the trapper head 22nd over - without going through the fire protection and / or panic door 3 to be drafted.

The additional locking means shown in the exemplary embodiments 4th is designed as a sloping trap.

12th shows that an actuator 27 , which is designed as a door handle in the illustrated embodiment, the door locking device 26th assigned. The additional locking means 4th is through the actuating means 27 operable. In particular, the additional locking means 4th by the actuating means 27 to operate. Ultimately, by actuating the actuating means 27 a retraction and also an extension of the additional locking means 4th in the fire protection and / or panic door 3 be initiated.

Even after the limit temperature has been exceeded, the additional locking means can 4th via the actuating means 27 be designed to be actuatable, so that the additional locking means 4th out of engagement of the latch holder 5 - also in the event of the release mechanism being triggered 11th - can be brought. This can open the fire protection and / or panic door 3 be provided. Ultimately, the additional locking means is retracted 4th during the regular operation of an in particular automatic fire protection and / or panic door 3 not provided. In the event of fire, however, the door must be opened 3 how to get out of the 11A until 11C is evident, not possible. Opening the fire protection and / or panic door 3 as it is from the expiration of the 11A until 11C can be seen, ultimately sets a pivoting of the latch holder 5 or the latch holder head 22nd in advance.

When the fire protection and / or panic door is closed 3 the projection engages behind 25th of the trap keeper head 22nd the free end 23 of the additional locking means 24 like this in 11A is shown. One push on the fire protection and / or panic door 3 and thus ultimately also to the additional locking means 4th enables the latch holder to be swiveled in 5 and sliding down along the protrusion 25th of the trap keeper head 22nd and the inclined leg 21 of the cuff 19th . This sliding down is in 11B shown. Thus, the fire protection and / or panic door 3 opened like this in 11C is shown, the additional locking means 4th no longer engages with the latch holder 5 stands.

In the event of a fire, however, the latch holder can pivot 5 like him in 11B is no longer possible. Ultimately, this also prevents the fire protection and / or panic door from warping 3 relative to the frame 2 . However, the additional locking means can also be used in the event of a fire 4th in the fire protection and / or panic door 3 be drawn in, after which the free end 23 of the additional locking means 4th out of engagement with the latch holder head 22nd can be brought and thus an opening of the fire protection and / or panic door 3 even when the latch holder is locked 5 is made possible.

9 also shows the setting of the end leg 17th the feather 15th via the actuating device 16 , especially the grub screw 18th .

the 11D until 11E indicate that the fire protection and / or panic door has closed again 3 . For example, by specifying a control device, the fire protection and / or panic door can be swiveled shut 3 can be initiated during regular operation. Ultimately the door falls 3 then to. The free end 23 of the additional locking means 4th is thus over the inclined legs 21 of the cuff 19th pushed back, for this purpose the latch holder 5 is swiveled in again if necessary. 11E shows the newly closed state of the fire protection and / or panic door 3 . Ultimately, in the 11 A until 11E opening and closing the door 3 shown.

Another advantage on the counter spring 13th is that after triggering the trigger 11th and after moving the lock 10 after the end of this state, especially in the event of an incorrect triggering, the lock 10 can be returned to their original position or their release position. Ultimately, the counter spring relaxes 13th again and thus holds the lock 10 out of engagement of the projection 28 and the ramp 14th .

List of reference symbols

1

Locking device

2

framework

3

Fire protection and / or panic door

4th

Additional locking means

5

Trap keeper

6th

Locking device

7th

axis

8th

Storage openings

9

casing

10

Lock

11th

Trigger means

12th

Release spring

13th

Counter spring

14th

Approach slope

15th

feather

16

Adjusting device

17th

End leg

18th

Grub screw from 16

19th

Faceplate

20th

Forend opening

21

Inclined leg of 19

22nd

Trapper Head

23

free end of 4

24

Trapper lower body

25th

Advantage of 22

26th

Door locking device

27

Actuating means

28

Advantage of 24

29

Leg of 5

30th

Long hole

31

Opening from 24

32

Advantage of 22

33

further opening from 24

Claims (11)

Locking device (1) for arrangement in a frame (2) of a fire protection and / or panic door (3), in particular intended to interact with an additional locking means (4) of the fire protection and / or panic door (3), with at least one pivotably mounted latch holder (5), wherein the latch holder (5) can be pivoted between a pivoted-in and a pivoted-out position, wherein the latch holder (5) is assigned a locking device (6) which is designed to lock the latch holder (5) in the swiveled-out position when a limit temperature is exceeded, wherein the latch holder (5) is pivotably mounted on an axis (7), a housing (9) for receiving the latch holder (5) mounted on the axle (7) is provided, wherein the axis (7) is held in the housing (9), wherein the locking device (6) has at least one locking device (10) for locking the latch holder (5) which can be adjusted between a release position and a locking position when the locking device (6) is triggered, a bevel (14) for the lock (10) being provided on the latch holder (5) along the path of movement of the lock (10). Closing device according to Claim 1 , characterized in that the latch holder (5) has at least one, preferably two, bearing openings (8) for receiving the axle (7). Closing device according to Claim 1 or 2 , characterized by that the locking device (6) has at least one triggering means (11) which acts on the lock (10) and which is designed to adjust the lock (10) when the limit temperature is exceeded, in particular the triggering means (11) being a shape-memory alloy , preferably nitinol, having and / or consisting of a release spring (12) is formed. in particular, the triggering means (11) being designed as a trigger spring (12) comprising and / or consisting of a shape memory alloy, preferably nitinol. Locking device according to one of the preceding claims, characterized in that the locking device (6) has a counter spring (13) which acts on the lock (10) and which holds the lock (10) in the release position when the release means (11) is not triggered, in particular where the spring force of the counter spring (13) is less than the spring force of the release spring (12) in the event of a release, and / or that the release means (11), the lock (10) and / or the counter spring (13) on the axle (7 ) are arranged. Locking device according to one of the preceding claims, characterized in that the latch holder (5) is spring-loaded for pivoting from the pivoted into the pivoted position by means of at least one spring (15), in particular wherein the spring (15) is arranged on the axis (7) . Locking device according to one of the preceding claims, characterized in that an adjusting device (16) is provided for adjusting the spring force of the spring (15), and that, preferably, the adjusting device (16) has an on one end leg (17) of the spring (15) has acting grub screw (18). Locking device according to one of the preceding claims, characterized in that a faceplate (19) with a faceplate opening (20) is provided and that the housing (9) is attached to the faceplate (19), the latch holder (5) in the pivoted-out position protrudes into the faceplate opening (20), and / or that at least one inclined leg (21) protruding into the faceplate opening (20) in the direction of the latch holder (5) is provided on the faceplate (19). Locking device according to one of the preceding claims, characterized in that the latch holder (5) has a latch holder head (22) for receiving the free end (23) of the additional locking means (4) and a latch holder lower body (24), in particular the latch holder head (22) at least has a projection (25) which is designed to engage behind the additional locking means (4) in the locked and / or closed state of the fire protection and / or panic door (3), and / or wherein the latch holder head (22) relative to the latch holder lower body (24) is adjustable and / or wherein the latch holder head (22) is detachably connected to the latch holder lower body (24) in a form-fitting and / or force-fitting manner, preferably by means of at least two screws. Door locking device (26) with a locking device (1) according to one of the preceding claims and at least one additional locking means (4) for locking the fire protection and / or panic door (3). Door locking device according to Claim 9 , characterized in that the additional locking means (4) is designed as an inclined latch. Door locking device according to Claim 9 or 10 , characterized in that an actuating means (27), preferably a door handle, is assigned to the door locking device (26), the additional locking means (4) being actuatable by the actuating means (27), in particular being retractable and / or extending out of the door (3) , is designed, in particular wherein the additional locking means (4) can be actuated via the actuating means (27) even after the limit temperature is exceeded, in particular so that the additional locking means (4) can be disengaged from the latch holder (5), in particular provided for opening the fire protection and / or panic door (3).

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