WO2010069498A1

WO2010069498A1 - Closing device for fire protection doors or windows

Info

Publication number: WO2010069498A1
Application number: PCT/EP2009/008755
Authority: WO
Inventors: Martin Hadebusch; Günter Wiedemann
Original assignee: Promat Gmbh
Priority date: 2008-12-20
Filing date: 2009-12-08
Publication date: 2010-06-24
Also published as: EA201170851A1; ES2624720T3; DK2367996T3; PL2367996T3; UA100615C2; EP2367996B1; EA022352B1; PT2367996T; EP2367996A1; DE202008016782U1

Abstract

The present invention relates to a closing device (1) for a pivoting and/or tilting fire protection element (2), particularly in the form of a fire protection door or a fire protection window, having a glazing (3) made of at least two parallel offset glass panes, wherein the closing device comprises at least: a lock case housing (7), in which a lock case having an integrated lock is inserted and attached, wherein the lock case housing is provided for mounting on the glazing of the pivoting and/or tilting fire protection element, at least one backing plate for the lock case housing, at least one sleeve-like spacer (15), and at least one mineral fire protection plate (16), wherein the lock case housing is connected to the backing plate by means of at least one fastener passing through the spacer, and the fire protection plate is clamped between the lock case housing and the backing plate such that the lock case housing protrudes past the fire protection plate at at least two opposite sides.

Description

"Closing device for fire doors or windows"

The present invention relates to a closing device for a pivotable and / or tiltable fire protection element, in particular in the form of a fire door or fire protection window, with a glazing of at least two parallel spaced glass sheets, also a lock latch device for such a closing device and a fire protection element, such a closing device or Has latch device.

Closing devices for fire doors or windows are known from the prior art. Thus, the German utility model DE 298 19 678 (U1) presents a fire-resistant glazing with a window in which the locking mechanism is integrated in the frame of the window. The window is further incorporated by means of a mounting frame in the fire wall element. In this solution, it may be considered disadvantageous that the window can not be installed frameless, thereby reducing the passage of light through the glazing.

DE 20 2004 002 479 U1 describes a fire-resistant glazing with a frameless double-leaf door made of intumescent fire-resistant glass, which can be locked with a lock. As a partial disadvantage of such a construction, it is considered that because of the urgent for the attachment of the lock through the washer screw connections and thus realized in this way clamping fit of the lap only massive fire protection glass panes or fire-resistant glass with glass sheets lying between solid intumescent layers can be used. This is due to the fact that fire protection panels filled with fire protection gel are not pressure-stable with respect to perpendicular to the glass surfaces Forces are because the gel filling does not provide a firm resistance In the case of pressure acting from outside on the surfaces of the disks, for example due to the interference fit of a lock, the glass surface exposed to the pressure would bend inwards and the gel filling would thereby be displaced. This leads to an impairment the fire protection properties and also due to the change in the gel layer thickness in the disc to optical distortions

As disadvantageous it may be felt in a structure as described above, that for the attachment of the castle usually at least four closely spaced holes in the I tumeszenz- glazing are required for the attachment of the turbo blade on both sides and for the implementation of Druckervierkaπt and lock cylinder These holes drove at the designated location to a significant mechanical weakening of the fire glass, as they act as a perforation due to their proximity to each other This can cause the lock breaks when hard slamming the door, which in the case of the use of fire protection Safety glass the destruction of the entire door can be caused

The object of the present invention is then to provide a closing device for fire doors or windows, which minimally impairs the mechanical stability of the glazing when installed in a fire protection door or fire protection window and at the same time the use of double glazing made of fire-resistant glass, in particular Despite all this, the locking device should be firmly attached to the fire protection door and thereby allow the lowest possible heat transfer in case of fire from the fire side to the counterfire side Finally, the locking device should be designed so that the highest possible light transmission through the door or the window is guaranteed The object of the invention is achieved by a closing device for a pivotable and / or tiltable fire protection element, in particular in the form of a fire door or a fire protection window, with a glazing of at least two parallel spaced glass panes, wherein the closing device comprises at least:

A lock case housing, in which a lock case with integrated locking mimic is inserted and fastened, wherein the lock case housing is intended for mounting on the glazing of the pivotable and / or tiltable fire protection element,

At least one counterplate for the lockbox housing,

• at least one sleeve-like spacer as well

At least one mineral fire protection plate, wherein the lock case housing is connected to the counter plate via at least one fixing, which is passed through the spacer and the fire protection plate between the lock case housing and the counter plate is held in a press fit, that the lock case housing the fire protection plate on at least two opposite sides surmounted.

The present invention is based on the finding that by means of a mountable on the glazing lock box housing using a fire protection plate inserted between this housing and a counter plate in combination with one or more spacers, a door lock can be attached to a gel-filled fire protection without their fire protection to impair.

For installation of the locking device according to the invention in a fire-resistant double-glazed door or window, for example, filled with a fire protection gel fire protection double glazing must have a peripheral recess in In addition, in the fire protection double glazing adjacent to this recess at least one through hole provided, in which the spacer is used in a mountable example on the glass surfaces Schlosskasteπ- housing Schlosskastengehause from one side and the counter-plate from the other side Positioned above the fire protection plate and a part of the fire protection glazing and fixed by means of a guided through the hole and the sleeve-like spacer, such as by a screw, in this way, on the one hand with the heat through the door or window in the lock area with At the same time, the spacer ensures that the lock box housing and the counter plate can be fixedly attached to the fire protection double glazing, for example by means of a screw connection, without the pane n the double glazing can be bent by the resulting mechanical forces and moments The spacer fixes the parallel glass panes at the distance specified by the stop surfaces even when the screw connection is tightened

The inventive solution is characterized by a number of advantages. The closing device according to the invention makes it possible, for example, to use fire-resistant double glazings, in particular fire protection gel-filled fire protection panes, although the use of this closing device is not restricted to these special types of fire-resistant pane

Fire protection panels or hydrogel-filled fire protection panels are described, for example, in EP 1 820 931 A1 and in DE 10 2005 018 842 A1. These fire panels have the advantage over the otherwise widely used fire protection panels with intimate intermediate sheaths comprising intumescent silicates, for example on a waterglass basis geringe- res surface weight may have comparable fire resistance class. This not only means easier transport of the discs, but also that the bracket and frame construction can be made lighter because of the lower load. Furthermore, the fire protection panels filled with fire protection gel are far less susceptible to penetrating moisture than the disks with solid silicate-containing intumescent interlayers, which in the case of the latter leads to clouding of the interlayer, which requires replacement of the pane.

Brandschutzgel filled fire protection panels usually consist of two parallel spaced glass panes of toughened safety glass (ESSG), which are fixed and connected to each other via a lying in their peripheral areas between the glass panes spacer profile and, for example, a polyurethane edge seal. Through an opening in this spacer profile, the fire protection gel or the precomponents are filled, wherein in the latter case the gelation takes place by polymerization to the hydrogel in the cavity filled with the mixture between the glass sheets.

However, the gel filled in these fire panels does not become completely solid, but retains a more or less firm gel consistency depending on the degree of crosslinking and the amount of monomers in terms of water content. This makes fire-resistant panels filled with such a gel relatively sensitive to pressure acting on the glass surfaces, since the gel shifts in the layer with slight deformation of the glass pane. For this reason, so far could be attached to these discs no locking devices directly, in which pressure is exerted on the glass panes, but the discs had to be enclosed in a frame on which the brackets can then attack. By using a fire protection plate in a recess provided in the glazing and the immediate fixation of the lock box on the fire double glazing can now be filled with fire protection gel fire doors or windows realize in which the discs do not have to be enclosed in a surrounding frame to hold the closing mimic. In this way, the doors or windows equipped with a locking device according to the invention allow a higher passage of light. In addition, such Braπdschutzelemente look visually appealing and because the discs are not bent, deteriorate neither the fire protection properties of the glazing nor there are optical distortions.

According to the invention, the closing device according to the invention comprises a lock case housing into which a lock case with integrated locking mimic is inserted and fastened. This lock case housing may for example be a rectangular box, in which the lock case can be installed with the door lock. The box is for example made of metal, in particular stainless steel or chromed or nickel-plated steel. The integrated locking mimic is the lock mechanism of the lock, which may include several types of locks, such as a latch bolt, a floating bolt and / or an automatic latch.

The locking device according to the invention also comprises at least one counter plate for the lock case housing. When the locking device according to the invention is fastened to a fire protection glazing, this counterplate is attached to the surface of the glazing opposite the lock case housing and connected to the lock case housing. For this purpose, for example, by a hole in the counter-plate and by in the Vergla- tion holes provided a fixing, for example, a screw, carried out and screwed into a provided in the lock case thread and tightened there. This thread is preferably provided on a glazed surface facing the lock case. The counter-plate may have various geometric shapes. One possibility is that this Gegeπplatte has approximately the same shape and size, as the base of the lock case housing, it is also possible that the counter plate has the same length as the lock case housing, but is designed to be slightly narrower than this.

The locking device according to the invention further comprises at least one mineral fire protection plate. Mineral fire protection boards are known as such and consist for example of pressed or sintered silicate material. Silica-containing fire protection boards can be made of different raw materials and in different ways. To achieve very good insulation effects, fire protection panels are made by pressing the raw materials, trying to dispense with binders as far as possible. These fireplates are often sintered at high temperatures to achieve higher mechanical strengths. Organic binders separate when used in fire protection boards because of their lack of temperature resistance, the use of inorganic binder can reduce the insulation performance. Fire protection plates which can be produced only by compression, are described for example in the patent EP 1140729.

The fire protection plate used in the context of the present invention is in the zusammengebrauten state of the closing device according to the invention between the lock case housing and counter-plate, which are interconnected by one or more fixing means. In this way, the Fire protection plate between lock case housing and counter plate held in a press fit. The lock case housing and possibly also the counter plate project beyond the fire protection plate on at least two opposite sides. When using the locking device according to the invention as a door lock attached to a side edge of the door, these would preferably be the upper and lower side edge of the lock case housing or the counter-plate. The fire protection plate has for this purpose a smaller footprint, for example, either only the length of the fire protection board is less than the length of the lock box housing and / or the width is less than that of the lock case housing.

Furthermore, the closing device according to the invention comprises at least one sleeve-like spacer. This is inserted in the glazing between the two glass panes. Through this sleeve-like spacer, the fixing means is guided through the installation of the locking device according to the invention, with which the lock case housing and the counter plate are connected to each other. Since the lock case housing and the counter plate, when installed in a door, project beyond the fire protection plate at upper and lower side edges and rest there on the glazing, the clamping seat for the fire protection panel also acts on the glazing, in particular if the thickness of the fire protection panel is approximately the thickness of the glazing equivalent. The spacer is now used to hold the glass panes of fire protection double glazing on the predetermined by the circumferential spacing profile distance and absorb the resulting mechanical forces of the clamping seat. In this way, bending of the glass panes of the double glazing is effectively prevented.

The spacer is when assembling the fire-resistant glazing of two individual slices to those in these discs to carry out or the For this purpose, the spacer can be inserted into this hole punch and preferably connected to the glass sheets with a casting resin, a sealant or an adhesive

According to a preferred embodiment of the closing device according to the invention, the spacer consists of a sleeve and at least two fixedly connected to the sleeve parallel spaced stop surfaces, the sleeve projects on both sides of the stop surfaces By combining a sleeve with two stop surfaces for the glass is so designed with a Spacers possible to accommodate even higher acting on the glass panes mechanical forces and moments and keep the glass panes of fire protection double glazing at the predetermined distance These forces occur in particular by the firm tightening of Fixiermitteis to realize the resulting between lock housing and counter plate clamping fit for the fire protection board

A particular advantage of the spacers provided with stop surfaces lies in the fact that in the event that the glass pane on the fire side bursts due to the high temperatures, the fragments of this glass are held for a certain time by the fire protection gel and so continue to be part of your Protective effect is maintained The lock is reliably held by the spacer on the pane on the counterfire side, which is also cooled by the fire protection gel. The mechanical connection through the screw connection between counter plate and lock case remains intact regardless of the condition of the fire side glass pane advantageous effect is also independent of which side of the fire on the equipped with the inventive Schließeinnch- tung fire-resistant glazing meets the held in the press fit In this way, the fire protection plate is likewise held in its original position and thus continues to provide reliable insulation in the lock area. Thus, the locking device according to the invention remains intact even after the fire-side disc has burst even if the fire is exposed to fire

The stop surfaces of the spacer are formed in a particularly preferred variant annularly This allows a particularly uniform absorption of the forces acting on the glass panes mechanical forces

A development of the closure device according to the invention provides that the spacer made of plastic or metal, in particular made of plastic coated metal as plastics are, for example, glass fiber reinforced plastics (GRP), polyethylene (PE) or polypropylene (PP) into consideration coming fire protection with a fire protection gel Use, the plastic must have at the same time a sufficient chemical resistance to the fire protection gel

Metal spacers can, for example, be made of iron, steel, stainless steel or aluminum. These metals are preferably coated with plastic in order to prevent interactions with the fire protection gel. These interactions can lead to superficial corrosion of the spacer and at the same time discoloration of the fire protection gel and gas bubble formation in the gel In principle, all plastics which on the one hand adhere to the metal and on the other hand have sufficient chemical resistance to the fire protection gel used can be used as the plastic coating for the metals. For this purpose, the metal spacer may be made of polyethylene, for example , Polypropylene or PTFE coated Also, the desired protection can be achieved by a powder coating become. In this case, the plastic coating can simultaneously fulfill the function of a separating or damping element, since this prevents direct contact between the metal and the glass pane.

It is also possible to make the spacer of a hard plastic, which itself has no sufficient chemical stability against the fire protection gel and then to coat this plastic spacer in an analogous manner to the metal spacers with one of the above-mentioned plastics to the chemical To ensure resistance of the component.

The spacers used according to the invention can either be machined out of a piece of material, for example on a lathe, or produced by means of a casting process. However, it is also possible to produce the spacer from a sleeve and the two stop surfaces by joining these components via gluing, welding or similar joining techniques.

According to a particularly preferred embodiment, the closing device according to the invention has at least two sleeve-like spacers. This is particularly preferred, since in this way the mechanical forces and moments acting on the adjacent fireproof glazing through the press fit of the fire protection plate are distributed more evenly. In a particularly advantageous manner, the spacers are placed so that the one spacer above the fire protection plate and the second spacer below the fire protection plate is positioned in each case in the region of the supernatant of the lock box housing in the glazing. If a third spacer is used, it can be positioned next to the fire protection board in the area of a third hole in the fire-resistant glazing. The Lock housing should then conveniently extend beyond the fire protection plate on this third page.

In a further preferred manner, the locking device according to the invention is designed so that the lock box housing and / or the counter plate on the respective mutually facing surface has a direct contact between the metal and glazing avoiding separating or damping element. Such a damping element may be, for example, a surface element made of plastic, in particular made of PTFE or a polyamide, in particular aramid, silicone or rubber, in particular in the form of a film, adapted in relation to its base surface on the lock case housing or counterplate. In a particularly advantageous form, the damping element is made of a heat-resistant material. This is particularly advantageous because in this way a reliable press fit for the fire protection plate can be realized without the lock case housing and the counter plate, which are usually made of metal, are in direct contact with the glass sheets. The damping element may also be formed such that it covers only the area in which the lock case housing or the counter plate make contact with the fire protection glass.

It is inventively provided that the lock case housing and the counter-plate are connected together by a fixing means. This fixing means may for example be a metal pin which is welded on both sides or in an advantageous manner, the fixing means may be a screw. This opens up the possibility of precisely fixing the clamping seat for the fire protection plate via the torque applied to the screw when tightening. The counter-plate may in this case have a conical recess for receiving the head of a particularly preferred countersunk screw, wherein the lock-box housing has on its side facing the fire-resistant disc a hole into which a thread is cut. In the context of the present invention, it is furthermore preferred if the fire protection plate used in the closing device according to the invention has at least one opening for the passage of a press square. In this way, the operation of a latch bolt from the side of the counter-plate can be ensured at the same time good thermal insulation in the region of attachment of the locking device according to the invention to a fire-resistant glass door.

For this reason, also preferred is an embodiment in which the fire protection plate used in the closing device according to the invention has at least one opening for the implementation of a lock cylinder.

According to a development of the present invention, the fire protection plate used in the closing device according to the invention consists of sintered, pressed material, in particular of a silicate material or alternatively gypsum boards, Perlite plates and other mineral fiber boards known per se. This is particularly advantageous because these said materials or fire protection boards have good thermal insulation properties and can be cut to the required formats, especially if the fire protection panels are to be provided with a profiling, for example in the form of a trained at the abutting edges of the fire protection plate spring.

The fire protection plate used according to the invention is furthermore preferably shaped as far as possible rectangular or square. Although other shapes are quite conceivable and possible, such as circular or semicircular blanks, so a rectangular or square shape is advantageous because this shape can be easily realized not only for the fire protection plate, but also because these geometries easily as recesses out Cut out glass panes. Most preferably, the rectangular or square shaped fire protection panels on one or more rounded corners.

It is likewise preferred if the fire protection plate used in the context of the closure device according to the invention has a thickness which corresponds at least to the thickness of the glazing. In this way, with the aid of the fixing means a sufficient voltage between the lock box housing and the counter-plate can be realized to ensure a clamping fit for the fire protection plate even when using a damping element.

According to a particularly preferred embodiment of the closing device according to the invention, the fire protection plate on at least one of the spaced glass plates facing abutting edges a spring-like profile, wherein the thickness of the fire protection plate in the region of the spring-like profile at most equal to the inner distance of the spaced glass panes from each other. Fireproof glazings filled with fire protection gel have, as stated above, an internal circumferential spacer profile, which can be offset slightly inwards from the respective abutting edges of the glass panes. In this way, a circumferential groove is formed in these gel-filled fire protection discs, in which a, as described in this embodiment, fire protection plate can engage with their correspondingly shaped spring-like profile. This embodiment is particularly preferred because in this way an exact positioning of the fire protection plate in a correspondingly shaped recess in the fire-resistant glazing is possible. In addition, the spring of the fire protection plate in the area of the groove of the fire-resistant glazing ensures improved thermal insulation. The height of the spring-like profile of the fire protection plate is expediently to the depth of Groove in the glazing adapted in that the spring has a height which corresponds at most to the depth of the groove.

As an alternative to this embodiment, in the closure device according to the invention, the fire protection plate may have a thickness which corresponds at most to the inner spacing of the spaced glass panes from each other. On both sides of this fire protection board then a further fire protection board is applied, each having a thickness which is approximately equal to or higher than the thickness of the glass panes of the glazing. As a result, a fire protection board composite is created with an inner and two outer fire protection panels. The individual panels can either be laid loosely on one another or adhesively bonded with adhesives that can be used for bonding fire protection panels. The inner of these three fire protection panels may have a greater width and length than the outer fire protection panels. As a result, the fire protection plates can be positioned one above the other in such a way that the inner fire protection plate projects beyond the other fire protection plates located on both sides of its fire protection glazing and forms a spring. In this way, in the case of gel-filled fire protection windows, the same tongue and groove connection as described above, together with the associated advantages, can be realized.

However, the embodiment mentioned here with a fire protection plate composite also has the advantage that the abutting edges of the fire protection plate does not have to be processed to form a spring-like profile - this can be of advantage in hard-to-edit fire protection board materials.

In addition, it is possible with the use of several successively positioned fire protection plates to increase the thermal insulation properties and the mechanical strength of this fire protection plate composite. So, for example the two outer fire protection panels must be made of a mechanically stronger material, since they are more directly exposed to the press fit between the lock case housing and counter plate. The fire protection plate located between these plates can then be made of a material that has particularly good thermal insulation properties. These advantages can also be realized with a fire protection board composite in which the fire protection boards have approximately the same length and width.

Another object of the present invention is in a Schlossfal- len device for a locking device according to the invention for attachment to a fire protection element, in particular in the form of a fire wall element, a fire door or a fire protection window, with a glazing of at least two parallel spaced glass panes, wherein the lock latch device at least includes:

A latch housing in which a latch is inserted and fixed, in particular a latch housing intended for mounting on the glazing of a fire protection element,

At least one counter plate for the lock latch housing,

• at least one sleeve-like spacer holder, wherein the lock latch housing is connected to the counter-plate via at least one fixing means which is passed through the spacer.

For the purposes of the present invention, a lock latch housing is understood to be a housing into which one or more lock latches have been inserted for the latches of a locking device. The lock latch housing is made of the same materials as the lock case housing. The latch is, for example, a metal sheet, which has at corresponding position and number of recesses for the one or more bolts of the corresponding locking device. The counter plate of the lock latch housing can be designed analogously to the counter plate of the lock case housing.

The sleeve-like spacer also corresponds to that used in the locking device according to the invention. Preferably, at least two spacers are also used in the lock latch device according to the invention, which are each inserted into the glazing holes provided therein and optionally glued to the glazing.

The fixing means which can be used for the lock catch device likewise correspond to the fixing means mentioned for the locking device according to the invention.

The lock trap device according to the invention is particularly advantageous because it can be used on gel-filled fire-resistant glazing due to the sleeve-like spacers. The provision of a recess for a fire protection plate as in the locking device according to the invention is not required in the lock latch device according to the invention, since additional holes for press square or lock cylinder must be provided. The fire protection double glazing is to be provided with only one or preferably two holes at the appropriate place in which the spacer described above is used. When using the fixing means, for example in the form of a screw, to connect the lock-latch housing and the counter-plate, the spacer ensures that the mechanical forces and moments arising from the tightening of the screw are absorbed by the spacer and can not lead to a deformation of the glass panes , The distance holder also ensures in the case of the lock latch device according to the invention in a manner analogous to the locking device that when the fire-side window bursts in case of fire the lock latch device remains intact and its function is maintained.

A further subject of the present invention is therefore a fire protection element, in particular in the form of a fixed fire protection glazing, a fire door or a fire protection window, with a glazing of at least two parallel spaced glass panes, wherein the glazing is provided on one side edge with a lock trap device according to the invention. Preferably, the glazing is a fire protection glazing filled with fire protection gel.

Another object of the present invention is a pivotable and / or tiltable fire protection element, in particular in the form of a fire door or fire protection window, with a glazing of at least two parallel spaced glass panes, wherein the glazing is provided on a side edge with a recess in the a closing device according to the invention is fixed such that the fire protection plate of the closing device is inserted into the recess and the spacer of the closing device between the glass sheets.

The pivotable and / or tiltable fire protection element according to the invention can be designed as one-wing or two-leaf and can be provided with hinges or joints in a manner known per se for producing the pivotable and / or tiltable properties. Two-wing pivotable and / or tiltable fire protection elements can be realized in particular by combining locking device according to the invention and lock latch device, preferably with one each filled with fire protection frameless glazing.

The fire protection elements according to the invention can also be provided with a plurality of recesses in which a plurality of closing devices according to the invention are fastened accordingly. This may be necessary, for example, in large-scale fire protection windows.

In the pivotable and / or tiltable fire protection element according to the invention, it has proven to be advantageous if the recess has largely the shape of the fire protection plate. In this way, a tight fit of the locking device and a good thermal insulation can be ensured.

In the case of the pivotable and / or tiltable fire protection element according to the invention, particular preference is given to using glazings which have an inner circumferential spacing profile spaced on the edge. As a result, a groove is formed at the abutting edges of the glazing into which a fire protection plate provided with a correspondingly shaped spring of the closing device according to the invention partially engages. In this way, the exact positioning and fixability of the fire protection plate and thus also the closure device can be improved as well as the thermal insulation of the fire protection element in the region of the closing device.

According to a development of the pivotable and / or tiltable fire protection element according to the invention, the spacer is connected to the glass panes via a filling material. For example, adhesives, in particular gap-bridging adhesives, or even casting resins or silicone can be used as the filler material. The casting resins may be one or two-component. In this way, a reliable connection between spacers and In particular, in the case of glazings filled with fire protection gel, sufficient tightness against leakage of the fire protection gel into the holes for the support holders is ensured in this way

According to a preferred embodiment of the pivotable and / or tiltable fire protection element according to the invention, the spacer of the closing device according to the invention consists of a sleeve and at least two stop surfaces fixedly connected to the sleeve, the sleeve protruding on both sides of the stop surfaces and the respective sections of the sleeve, In this way, the spacer can easily absorb the mechanical forces created when tightening the fixing means to obtain the clamping seat for the fire protection plate. The partial pieces of the sleeve, which are the same as or larger than the thickness of the glass sheets survive beyond the stop surfaces, running longer than the thickness of the glass sheets, so this also allows the integration of separation or damping elements each between the counter plate or Schlosskastengehause and the glazing

Furthermore, a pivotable and / or tiltable fire protection element according to the invention is preferred in which the space between the glass panes is filled with a gas, a liquid or a gel, in particular a fire protection gel. In principle, all gels known to the person skilled in the art for this purpose can be used as the fire protection gel The fire protection gels used in the context of the invention may also contain additives such as silicates, UV protectants or even dyes. The glazings filled with a fire protection gel are particularly preferred since they have very good fire protection properties and can be framed by means of the holder according to the invention Structure of the locking device and also the Schlossfalleneinπchtung further ensures that even the bursting of a disc in case of fire, the operation of Schließemπchtung or Schlossfalleneiππchtung by the other, still intact fire screen, continue to be guaranteed

According to a particularly preferred embodiment of the pivotable and / or tiltable fire protection element, at least one of the glass panes is made of safety glass, in particular of tempered safety glass. This is particularly advantageous because it shatters into very many small fragments at extremely high temperatures in the event of fire, of which a lower one Danger of injury and the other also in the crushed state adhere well to the fire protection gel and thus continue to protect the fire protection gel for a certain time from direct flame contact Particularly advantageous is the use of types of glass that have a high temperature resistance, such as Duran ^® Da Emscheibensicherheitsglas after the prestressing can not be cut, must the opening for the spacer of the invention Schließeinπchtung or Schlossfalleneinnchtung and also the recess for the fire protection plate of the invention Schließei tion already be provided before tempering in the glass sheets

According to the invention, however, other glass panes can also be used, such as float glass or even laminated safety glass

The glass panes used for the pivotable and / or tiltable fire protection elements according to the invention can, in principle, assume any desired thickness. For protective purposes, in particular for the production of double glazings filled with fire protection gel, it is expedient if the individual Glass panes independently have a pane thickness of 1 to 15 mm, preferably 2.5 to 10 mm.

The distance of the two glass panes in such a double glazing can also be arbitrarily adapted to the requirements. Regardless of whether the gap of the glass panes is filled with a gas, a liquid or a gel, in particular a fire protection gel, a distance of the glass panes of 5 to 50 mm has proven sufficient for most applications. Particularly preferably, the distance of the glass panes from each other is about 8 to 25 mm, as can be achieved in this way, especially with filled fire protection gel fireproof glazings good fire resistance at the same time moderate weight of the glazing.

According to a further preferred embodiment of the pivotable and / or tiltable fire protection element, the fire protection element is designed frameless. This is particularly advantageous because such fire protection elements have a high light transmission, which is not affected by frame components. In addition, due to the homogeneity of the materials in case of fire lower mechanical stresses occur, which may arise in frame-bordered glazings due to the different thermal expansion coefficients.

Working Example:

The mode of operation of the closing device according to the invention is described below with reference to FIGS. 1 to 8. Show

1, the closing device according to the invention in the supervision,

Fig. 2. the closing device according to the invention in the lateral view, 3 is a detailed view of the locking device shown in FIG. 1 along the section line AA,

4 is a detail view of the fire protection plate used in a recess of the glazing in the supervision,

5 is a detail view of FIG. 4 in the region of the transition between fire protection plate and glazing along the section line B-B,

6 shows the closure device according to the invention from the fire side in three-dimensional representation,

Fig. 7, the locking device according to the invention of the counterfire side in three-dimensional representation and

8 shows a detailed representation of the fire protection plate used in a recess of the glazing in three-dimensional representation.

In Fig. 1, a locking device 1 according to the invention for a pivotable and / or tiltable fire protection element 2 with a glazing 3, in this case a frameless fire-resistant glass door, shown. The glazing 3 consists, as shown in Fig. 2, of two parallel spaced glass sheets 4 and 5 made of toughened safety glass. Between the glass sheets 4 and 5 there is an inner circumferential spacer profile 6 shown in FIG.

The locking device 1 comprises, as Fig. 1 illustrates, a mounted on the glazing 3 lock box housing 7 with integrated locking mimic, wherein the closing mimic a latch bolt 8 which is actuated by a lever handle 9 by means of a Drückervierkaπts 10 and a drive bolt 11, by means of a lock cylinder 12 is operable includes.

2, the lock box housing 7 is opposite a counter plate 13, which, as can be seen in the detail view of FIG. 3 mit- Tels a fixing means 14 is connected in the form of a screw with the lock case housing 7, wherein the screw is guided by a sleeve-like spacer 15.

Between the lock box housing 7 and the counter plate 13 shown in Fig. 2, a rectangular mineral fire protection plate 16 shown in Fig. 4 without lock case housing 7 and counter plate 13 is held with two rounded corners in the press fit. The fire protection plate 16 is inserted in a correspondingly shaped recess 17 in the glazing 3. The fire protection plate 16 also has an opening 18 for the handle square 10, an opening 19 for the lock cylinder 12 and further openings 20 for the fastening screws of the fittings 21.

The height of the fire protection plate 16 and thus also the recess 17 is selected so that all openings 18, 19 and 20 are within the surface of the fire protection plate 16. The length of the fire protection panel 16, i. their vertical extent, is significantly lower than that of the lock box housing 7 and also the counter plate 13, the lock box housing 7 and the counter plate 13 are positioned on the fire protection plate 16 that they project beyond upper and lower side edges of the fire protection plate 16.

The spacer 15 shown in Fig. 4 consists of plastic coated stainless steel and has on one side formed thereon annular abutment surfaces 22 for the glass sheets 4 and 5 and a sleeve 23 for the implementation of the fixing means 14. The glass sheets 4 and 5 each have a bore 4a and 5a, in which a spacer 15 with the respective outer regions of the sleeve 23 by means of a filling material 24, here a casting resin, with the glass sheets 4 and 5 is glued. Between Schlosskastengehause 7 and the glass pane 5 and between the counter-plate 13 and the glass 4 is in each case a separation or damping element 25 in the form of a rubber washer

FIG. 4 shows a detail of the fire protection plate 16 along the section line B - B from FIG inner circumferential and slightly inwardly offset circumferential spacer profile 6 fixed The spacer profile 6 also has a sealing function, which prevents outflow of the located between the glass sheets 4 and 5 fire protection gel 26

The fire protection gel 26 is prepared, for example, as hydrogel from a NaCl / MgCl 2 salt solution with the addition of polymerizable compounds such as a mixture of acrylamide, N-methylolacrylamide, methylenebisarcylamide and a polymerization accelerator in water either before filling between the glass sheets 4 and 5 or sιtu generated between the glass sheets 4 and 5 by the above components are mixed together and filled directly into the cavity between the glass sheets 4 and 5. The polymerization to the hydrogel then takes place in now filled with the mixture cavity between the glass sheets 4 and 5

FIG. 5 further shows that a groove 27 is formed between the glass panes 4 and 5 through the slightly offset inward circumferential spacer profile 6, into which the fire protection plate 16 engages with its abutment edge 28. The circumferential spacer profile is composed of a U-section. form¬ profile 6a and a sealing profile 6b together on the fire protection plate 16 are on both sides of two further fire protection panels 29, each having the thickness of the glass sheets 4 and 5, wherein the abutting edges of the fire protection board th 29 with the abutting edges of the glass sheets 4 and 5 are in contact. The fire protection plate 16 is provided in the region of the glazing 3 opposite abutting edge 30 with cover strips 31 and covered at the abutting edge 30 with the end profile 32.

FIG. 6 shows the closing device 1 from the fire side and FIG. 7 from the counter-firing side in each case viewed in a three-dimensional representation obliquely from above. 8, the fire protection plate 16 inserted into the recess 17 of the glazing 3 is shown in a three-dimensional representation obliquely from below.

LIST OF REFERENCE NUMERALS:

1) closing direction

2) pivotable and / or tiltable fire protection element

3) glazing

4) glass pane

4a) bore

5) glass pane

5a) bore

6) Distance profile

6a) U-shaped profile

6b) sealing profile

7) lock case housing

8) latch bolt

9) Door handle

10) Punch square

11) Drive bolt

12) lock cylinder

13) counter plate

14) fixing agent

15) sleeve-like spacer

16) mineral fire protection board

17) recess

18) opening

19) opening

20) opening

21) fittings

22) stop surface

23) sleeve

24) filling material 25) damping element

26) fire protection gel

27) groove

28) abutting edge

29) fire protection panel

30) abutting edge

31) Cover strip

32) End profile

Claims

protection claims

1. Closing device (1) for a pivotable and / or tiltable fire protection element (2), in particular in the form of a fire door or a fire protection window, with a glazing (3) of at least two parallel spaced glass sheets (4, 5), wherein the closing device (1 ) at least comprises:

A lock case housing (7) into which a lock case with integrated locking mimic is inserted and secured, the lock case housing (7) being intended for mounting on the glazing (3) of the pivotable and / or tiltable fire protection element (2),

At least one counter-plate (13) for the lock-box housing (7),

• at least one sleeve-like spacer (15) and

At least one mineral fire protection plate (16), wherein the lock case housing (7) is connected to the counter plate (13) via at least one fixing means (14) which is passed through the spacer (15) and the fire protection plate (16) between the lock case housing (16) 7) and the counter-plate (13) is held in a press fit such that the lock-box housing (7) projects beyond the fire-protection plate (16) on at least two opposite sides.

2. Locking device according to claim 1, characterized in that the spacer (15) consists of a sleeve (23) and at least two with the sleeve (23) fixedly connected parallel spaced abutment surfaces (22), wherein the sleeve (23) on both sides of Projecting surfaces (22) protrudes.

3. Locking device according to claim 1 or 2, characterized in that the sleeve-like spacer (15) made of plastic or metal, in particular made of plastic coated metal.

4. Locking device according to one of the preceding claims, characterized in that the closing device (1) has at least two sleeve-like spacers (15).

5. Locking device according to one of the preceding claims, d a d u r c h e c e n e c e s in which the lock box housing (7) and / or the counter-plate (13) on the respective mutually facing surface has a damping element (25).

6. Locking device according to one of the preceding claims, characterized in that the fixing means (14) is a screw.

7. Locking device according to one of the preceding claims, d a d u r c h e c e n e e c e s, the fire protection plate (16) at least one opening (18) for passing a pusher square (10).

8. Locking device according to one of the preceding claims, d a d u r c h e c e n e c e s in which the fire protection plate has at least one opening (19) for passing through a lock cylinder (12).

9. Locking device according to one of the preceding claims, characterized in that the mineral fire protection plate (16) consists of sintered, pressed material, in particular of a silicate material.

10. Locking device according to one of the preceding claims, d a d u r c h e c e n e z e n e c e s, the fire protection plate (16) is formed as far as possible rectangular or square.

11.Schließeinrichtung according to any one of the preceding claims, d a d u r c h e c e n e z e c h e n e, t a s s the fire protection plate (16) has a thickness which corresponds at least to the thickness of the glazing (3).

12. Locking device according to claim 11, characterized in that the fire protection plate (16) on at least one of the spaced glass panes (4, 5) facing abutting edges (30) has a spring-like profile, wherein the thickness of the fire protection plate (16) in the region of the spring-like profile at most equal to the inner distance of the spaced glass sheets (4, 5) from each other.

13. Locking device according to one of claims 1 to 10, characterized in that the fire protection plate (16) has a thickness which corresponds at most to the inner distance of the spaced glass panes (4, 5) from each other and on both sides of this fire protection plate (16) each have a further Fire protection plate (28, 29) is applied, each having a thickness which is approximately equal to or higher than the thickness of the glass sheets (4, 5).

14.Lock trap device for a closing device (1) according to one of the preceding claims for attachment to a fire protection element, in particular in the form of a fire protection wall element, a fire door or a fire protection window, with a glazing (3) of at least two parallel spaced glass sheets (4, 5 ), wherein the latch device at least comprises:

A lock-latch housing in which a lock catch is inserted and fastened, in particular for mounting on the glazing of the fire-protection element,

At least one counter plate for the lock latch housing,

• at least one sleeve-like spacer (15), wherein the lock latch housing is connected to the counter plate via at least one fixing means (14) which is passed through the spacer (15).

15. Fire protection element, in particular in the form of a fixed fire protection glazing, a fire door or a fire protection window, with a glazing (3) of at least two parallel spaced glass panes (4, 5), wherein the glazing (3) at a side edge with a lock Fall device is provided according to claim 14.

16. pivotable and / or tiltable fire protection element (2), in particular in the form of a fire door or fire protection window, with a glazing (3) of at least two parallel spaced glass sheets (4, 5), wherein the glazing (3) on a side edge with a recess (17) is provided in which a closing device (1) according to one of claims 1 to 13 is inserted such that the fire protection plate (16) of the closing device tuπg (1) in the recess (17) and the sleeve-like spacer (15) of the closing device (1) between the glass sheets (4, 5) is inserted.

17. Fire protection element according to claim 16, wherein the recess (17) largely has the shape of the fire protection plate (16).

18. The fire protection element according to claim 16 or 17, characterized in that the glazing (3) has an inner circumferential spacer profile (6) spaced on the edge side.

19. The fire protection element according to claim 16, wherein the spacer (15) is connected to the glass panes (4, 5) via a filler material (24).

20. Fire protection element according to one of claims 16 to 19, characterized in that the spacer (15) consists of a sleeve (23) and at least two fixedly connected to the sleeve (23) parallel spaced stop surfaces (22), wherein the sleeve (23) protruding on both sides of the stop surfaces (22) and the respective sections of the sleeve (23) which project beyond the stop surfaces (22) have a length which is equal to or greater than the thickness of the glass sheets (4, 5).

21. Fire protection element according to one of claims 16 to 20, characterized in that the space between the glass panes (4, 5) is filled with a gas, a liquid or a gel, in particular a fire protection gel (26)

Fire protection element according to one of Claims 16 to 21, characterized in that at least one of the glass panes (4, 5) consists of safety glass, in particular of safety glass

Fire protection element according to one of Claims 16 to 22, characterized in that the glass panes (4, 5) independently of one another have a pane thickness of 1 to 15 mm

Fire protection element according to one of claims 16 to 23, characterized in that the glass sheets (4, 5) have a spacing of 5 to 50 mm

Fire protection element according to one of Claims 16 to 24, wherein the fire protection element (2) is designed to be frameless