EP1586734B1 - Glazed fire resistant door - Google Patents

Abstract

A glazed fire retarding door has a metal frame construction with an aperture fitted with two glass panes separated by spacers (17). At least one of the panes (15) is fire retarding, e.g. F15 to F90, while the other pane (16) can be a cost saving safety glass. The spacers (17) are selected to match the thickness of the door, with the outer surfaces of the panes either flush with the door or recessed no further than 5 mm. The door has a sandwich construction with outer steel layers (8, 9) and a fire retarding filling (11).

Description

The invention relates to a fire protection door leaf having a door leaf frame construction and a glazing inserted therein. In addition, the invention relates to a system and a method for producing such fire protection door leaves and provided with such a fire door leaf fire door.

Fire doors are part of the fire protection, the provision of which is often prescribed by building regulations, especially in public buildings. Fire protection closures are standardized in Germany and in Europe, inter alia, by DIN 4102 and EN 1634. They require a construction supervisory approval. In order to obtain such approval, fire door designs are being tested in a fire test. Depending on whether the doors withstand at least 15, 30, 60 or 90 minutes of one-sided fire under DIN conditions (DIN 4102 Part 5), they are referred to as T15, T30, T60 or T90 fire doors. A specific type of fire doors in the form of sheet steel doors are standardized by the DIN 18082. For steel sheet doors that are manufactured according to this standard, you do not need to carry out a separate fire test. These DIN sheet steel doors are characterized by a particularly cost-effective manufacturing process. The door leaves of these fire barriers according to DIN 18082 are formed from a box plate and a cover plate, which enclose a cavity filled with insulating material.

There are also fireproof glazings and glazed fire doors on the market. The door leaves of such glazed fire doors have a door leaf frame and held therein a fire panel as a door leaf filling. Such glazed fire doors require a separate approval. The known glazed fire doors are usually built very expensive and optically high quality and correspondingly expensive.

While the aforementioned relatively inexpensive DIN sheet steel doors are usually used in functional areas, such as basements or production rooms of commercial enterprises, glazed fire doors usually find in higher quality objects such. As office or hotel buildings use.

In particular, the fire door leaves according to DIN 18082 are produced in various thicknesses in industrial mass production depending on other requirements.

From the DE 203 15 218 U1 goes out a fire door with a forming the preamble of claim 1 glass frame fire door leaf. The fire protection door leaf comprises a door leaf frame construction with a door leaf cutout and two panes formed as fire protection panes. In order to obtain a flush surface between the door leaf frame construction and the panes, spacers are interposed between the panes. In addition, a sealing material made of rubber is inserted between the panes and the door leaf cutout. To fix the discs in the door leaf cutout they are glued by means of an adhesive.

In the DE 16 83 055 A1 discloses a fire-retardant door having a corresponding fire-retardant door leaf with glazing incorporated therein used in elevator construction. The door leaf has a cover plate and a box plate, wherein the two sheets are connected to each other for fixing by means of U-shaped sheet metal webs. The glazing comprises two wire mirrors, which are not designed as fire-protection panes and which are inserted flush with the door panels, wherein the glasses are held in place by webs. Between the two glasses runs for the purpose of fire protection, a perforated plate, which is connected to the webs. The task of the perforated plate in case of fire is to prevent an advance of the fire.

From the DE 101 10 795 A1 is a fire door in the form of a sheet metal door leaf frame construction with window and glazing out. The fire door comprises a cover plate and a box plate. The glazing has only a single fire screen that is substantially thinner than the thickness of the sheet metal door leaf frame construction. The glazing is fixed by means of a profile on the door leaf frame construction. The glazing is inserted into the cutout such that a shoulder exists between a surface of the door leaf frame structure and a surface of the glazing.

The object of the invention is to provide a glazed fire door with the features of the preamble of claim 1, which can be made more easily industrially.

This object is achieved by a fire door with the features of appended claim 1.

Advantageous embodiments are the subject of the dependent claims.

According to the invention, in the case of a fire protection door leaf with a door leaf frame construction and a glazing inserted therein, the glazing has at least one fire protection pane and one further pane. These two discs are spaced apart by a spacer means, that they are approximately flush with the broad side surfaces of the door leaf frame construction or that the respective opposite broad sides of the two panes are arranged at least in the vicinity of the broad side surfaces of the door leaf frame structures. This can be vitrified differently thick door leaf frame structures, each with a same pair of glass panes with the same, visually appealing broadside view. You have to provide only a suitable spacer device. Even with different door panel thicknesses, the glass panes always close with the door leaf frame construction, so that despite the intended glazing, a uniform door leaf body is produced without any gradations on the door leaf wide surfaces or at least without visually particularly striking gradations on these wide surfaces. A measure of about 5 mm for a step is still to be regarded as visually hardly noticeable and thus still substantially flush. But it also depends on the overall relative dimensions; For small thin, smooth door leaves, smaller gradations will be more noticeable than for thick, thick door leaves with structured surfaces. More generally, the invention aims at a substantially constant visual impression of the broadside surfaces also of different thickness glazed fire doors.

The invention is particularly suitable for the glazing of fire protection steel sheet doors manufactured according to DIN 18082 with box panel and cover sheet. By applying the invention for glazing such door leaves produced according to DIN, a particularly cost-effective fire-resistant door leaf is created with visually appealing glazing. Thus, the door leaf frame construction is preferably formed by a sheet metal fire protection door leaf construction. This further preferably has a box plate and a cover plate and a filling therebetween. The Box sheet and the cover plate then form the respective broad sides of the door leaf frame construction. To produce this door leaf can be z. B. corresponding fire doors according to DIN 18082 produce and then cut out to form a glazing cutout center and stiffen the thus cut door leaf body by means of the spacer device and then insert the two panes. Alternatively, it would be possible to connect a correspondingly cut-out box plate and cover plate, possibly with insertion of the spacer device, to the door leaf frame construction.

When glazing only a fire protection pane is preferably used, so that the overall construction is inexpensive. Such fire protection panels are available on the market as F15 discs, F-30 discs or also with correspondingly higher fire protection requirements. They consist of several layers of transparent material, especially glass, with usually clear fire-resistant cooling materials in between. Since in the glazing according to the invention a further pane is used, the fire protection door leaf according to the invention can also fulfill an overall higher fire protection classification in one embodiment with a fire protection pane with a lower fire classification. For example, you can make a T30 door leaf when using a F15 disc.

Accordingly, this additional disc does not fulfill a fire protection function. It is preferable to perform this only as so-called G-glass. Preferred materials for this purpose are simple float glass, or more preferably safety glass, such as toughened safety glass (ESG), laminated safety glass (VSG), etc. Depending on requirements, insulating glass or toughened glass or other tempered glass can also be used. Even ornamental glasses, which give the door a correspondingly higher-quality appearance or reduce the transparency while still allowing light through, can be used. The invention thus makes it possible to To meet very different visual impressions of the glazing and very different functions of the glazing without great fire protection effort, simply by using a corresponding functional glass for the other disc.

The spacer device preferably has a spacer strip arranged between the panes of a fire protection material. Preferably, the spacer device - especially when using a sheet metal frame construction to stiffen the door leaf frame construction, which is mechanically weakened by the window opening relative to the original DIN door leaves accordingly. Accordingly, the use of corresponding stiffening elements in or on the spacer means between the broad sides forming sheets is preferred. Now, if the spacer strip consists of a fire-resistant cooling fire protection material, such partial stiffeners can be used without adverse effects for the fire protection function of the door leaf. The thermal bridges formed by extending in the direction of thickness metal bridges could otherwise direct the hot temperature in the event of fire through the thickness of the door leaf. The fire protection material of the cover strip gives off, for example, moisture whose evaporation contributes to the cooling of the metal bridges in case of fire. Or it generally has a material that changes its state of aggregation in case of fire, wherein the energy required for the state change of the penetrating fire heat is withdrawn. This keeps the side away from the fire cooler. Thus, the fire protection conditions, which according to the relevant standards also provide certain temperature limits on the side facing away from the fire, can be met.

Since it is possible to see through the two panes the part of the spacer device arranged between the panes, it is preferably designed as a spacer strip (and not interrupted, for example, in the form of spacer blocks). At least the visible surface the spacer strip is more preferably optically tempered. For this purpose, it is clad, for example, with a panel or veneered. Or it is coated or painted with a visually appealing material.

• Aufrechterhalten eines Abstandes zwischen den Scheiben und damit Anpassen der Verglasung an die Dicke der Türblatt-Rahmenkonstruktion;
• Versteifen der Türblatt-Rahmenkonstruktion;
• Einfassen und Halten der Glasscheiben nach Art einer Glasleiste.

The spacer device in a preferred embodiment of the invention preferably has the functions:

• Maintaining a spacing between the panes and thereby adjusting the glazing to the thickness of the door leaf frame construction;
• Stiffening the door leaf frame construction;
• Enclose and hold the glass panes in the manner of a glass strip.

In order to keep the panes in place, the spacer device according to the invention has a profile strip device comprising the panes on the outside.

The profile strip device further preferably has a profile strip for stiffening the door leaf frame construction. In order to fulfill the glazing bar function, the profile strip device preferably has two legs for gripping around the outer surface of the two panes, which are spaced apart by means of a spacer which is joined between them, preferably the spacer strip mentioned above. The distance between the legs further preferably corresponds substantially to the thickness of the door leaf frame construction. To determine the leg distance, the profile strip device preferably has a web between the legs. The web is preferably formed as part of a profile of a profile strip. The profile strip is preferably formed of metal and further preferably formed of sheet steel, which, for. B. in a profiling machine, has been correspondingly cold formed. In order to minimize the heat conducted through the bridge in case of fire, the bridge can be broken through with through holes. The passage openings are preferably transverse to the thickness direction elongated slots extending the door leaf formed, which reduces the temperature contributing to the cross-sectional area without affecting the rigidity over charge. To further minimize the heat provided by the bridge in the event of fire, the latter is further preferably provided on at least one side with a fire protection material which cools in the event of fire. This may be, for example, the fire protection material of the spacer. There are also fire protection panels that emit moisture in the event of fire at their faces and thus also contribute to its cooling when it rests on the bridge. The bridge can also be provided on its entire extent in the thickness direction on one side or on both sides with fire protection material. Alternatively, but currently less preferred, because more expensive and expensive in the design and manufacture, the web is formed of a poorly heat-conductive material.

To facilitate the insertion or replacement of the discs, the profile strip device is preferably constructed of a plurality of interconnectable parts, wherein a first part has a first of the legs and a second part of the second leg. The parts are preferably releasably connected to each other, for example screwed together.

As a stiffening profile strip a Z-profile strip is preferably used. Such a shape can be easily profiled from steel sheet. The Z-profile strip preferably forms the first of the several parts of the profile strip device and thus has the first of the outside of the discs detecting thighs. The second leg is then preferably formed by a substantially flat bar formed. For screwing the flat strip to the Z-profile strip, the flat strip further preferably has a plurality of projections. These can, for example, engage in correspondingly notched recesses on a profile flange of the Z-profile which protrudes on the side opposite the first leg and are detachably fastened there.

For covering the spacer means and / or joints, which are formed between the broad sides of the door leaf frame construction and the outside broad sides of the glazing, a cover strip, more preferably at least one cover strip per glazing edge region is preferably provided. The cover strip (s) is / are more preferably invisibly attached from the outside. This can be done by clipping or sticking. A Aufklippsen could be realized by means provided on the back of the cover strip projections which engage behind openings on the door panels or the like.

The invention also provides a system for producing a glazed fire door with one of several possible thicknesses and substantially flush glazing. For the production of such door leaves, the system according to the invention provides an assortment of differently thicker door leaf frame constructions and an assortment of spacer devices corresponding to the thickness of the door leaf frame constructions in accordance with the invention. It then suffices to provide or to provide two panes of translucent material which are at least partially designed in fire protection design and which can be used in all door leaf frame constructions of different thicknesses.

With the fire protection door leaf according to the invention, it is possible to construct a fire protection door which withstands one-sided fire exposure for at least 15, preferably at least 30 minutes.

• Herstellen der Türblatt-Rahmenkonstruktionen in verschiedenen Dicken,
• Bereitstellen der zu den Dicken der Türblatt-Rahmenkonstruktionen jeweils passenden Abstandshalteeinrichtungen in erfindungsgemäßer Ausgestaltung und
• flächenbündiges Einsetzen jeweils eines gleichen Paares der Glasscheiben mittels der passenden Abstandshalteeinrichtungen in die verschieden dicken Türblattrahmenkonstruktionen.

A method according to the invention for producing aforesaid fire protection door leaves in various thicknesses has the steps

• Producing the door leaf frame constructions in different thicknesses,
• Providing the appropriate to the thicknesses of the door leaf frame structures spacer means in inventive design and
• flush mounting each of a same pair of glass sheets by means of the appropriate spacers in the different thickness door leaf frame constructions.

The door leaves with different thicknesses can be made, for example, on parallel production lines, more or less parallel or simultaneously and cut out in one or more subsequent glazing station (s) and glazed by means of the spacer means. Alternatively, a production line is first used to make a door leaf frame structure having a first thickness and then glazing this door leaf frame construction of the first thickness. If a different door leaf thickness is then to be produced, the production line is set up accordingly, in which case, after the manufacture of the door leaf frame construction with the second thickness, glazing takes place. The steps can therefore take place simultaneously or sequentially for different thicknesses.

Fig. 1

eine Draufsicht auf ein Feuerschutz-Türblatt mit Verglasung;

Fig. 2a

einen Teilschnitt entlang der Linie II - II gemäß Fig. 1 durch ein erstes Feuerschutz-Türblatt mit einer ersten Dicke a, wobei das Feuerschutz-Türblatt zusammen mit einer Zarge als Teil einer ersten Ausführung einer Feuerschutztür gezeigt ist;

Fig. 2b

einen Teilschnitt entlang der Linie II - II gemäß Fig. 1 durch ein zweites Feuerschutz-Türblatt mit einer zweiten, von der ersten Dicke a verschiedenen Dicke b, wobei das Feuerschutz-Türblatt zusammen mit einer Zarge als Teil einer zweiten Ausführung ei- ner Feuerschutztür gezeigt ist;

Fig. 2c

einen Teilschnitt entlang der Linie II - II gemäß Fig. 1 durch ein drittes Feuerschutz-Türblatt mit einer dritten, sowohl von der ers- ten Dicke a als auch von der zweiten Dicke b verschiedenen Di- cke c, wobei das Feuerschutz-Türblatt zusammen mit einer Zar- ge als Teil einer dritten Ausführung einer Feuerschutztür gezeigt ist;

Fig. 3

einen Teilschnitt entlang der Linie III - III von Fig. 1 durch ein Feuerschutz-Türblatt in einer ersten Ausführungsform;

Fig. 4

einen Teilschnitt entlang der Linie IV-IV von Fig. 3;

Fig. 5

eine perspektivische Explosionsansicht der ersten Ausführungs- form des Feuerschutz-Türblattes;

Fig. 6

eine in Richtung auf eine Breitseite des Türblattes gesehene Seitenansicht einer ersten Z-Profilleiste, die ein Teil einer Glas- oder Abstandshalteeinrichtung der Verglasung des Feuerschutz- Türblattes von Fig. 3 ist;

Fig. 7

eine in Richtung auf eine Schmalseite des Feuerschutz- Türblattes gesehene Seitenansicht der ersten Z-Profilleiste von Fig. 6;

Fig. 8

eine Draufsicht der ersten Z-Profilleiste von Fig. 6;

Fig. 9

eine in Richtung auf eine Breitseite des Feuerschutz-Türblattes gesehene Seitenansicht einer ersten flachen Glasleiste, die ein weiteres Teil der Glas- oder Abstandshalteeinrichtung der Ver- glasung des Feuerschutz-Türblattes von Fig. 3 ist;

Fig. 10

eine in Richtung auf eine Schmalseite des Feuerschutz- Türblattes gesehene Seitenansicht der ersten flachen Glasleiste von Fig. 9;

Fig. 11

eine Draufsicht der ersten flachen Glasleiste von Fig. 9;

Fig. 12

eine in Richtung auf eine Breitseite des Feuerschutz-Türblattes gesehene Seitenansicht einer zweiten Glashalteleiste, die ein Teil einer Glas- oder Abstandshalteeinrichtung der Verglasung einer zweiten Ausführungsform eines Feuerschutz-Türblattes ist;

Fig. 13

eine in Richtung auf eine Schmalseite des Feuerschutz- Türblattes gesehene Seitenansicht der zweiten Glashalteleiste von Fig. 12;

Fig. 14

eine Draufsicht der zweiten Glashalteleiste von Fig. 12;

Fig. 15

eine in Richtung auf eine Breitseite des Feuerschutz-Türblattes gesehene Seitenansicht einer zu der zweiten Glasleiste passend ausgeführten zweiten Z-Profilleiste, die ein weiteres Teil der Glas- oder Abstandshalteeinrichtung der Verglasung der zweiten Ausführungsform des Feuerschutz-Türblattes ist;

Fig. 16

eine in Richtung auf eine Schmalseite des Feuerschutz- Türblattes gesehene Seitenansicht der zweiten Z-Profilleiste von Fig. 15;

Fig. 17

eine Draufsicht der zweiten Z-Profilleiste von Fig. 15;

Fig. 18

einen Teilschnitt entlang der Linie III-III von Fig. 2 und entspre- chend Fig. 3 durch das Feuerschutz-Türblatt gemäß der zweiten Ausführungsform;

Fig. 19

einen Teilschnitt entlang der Linie XIX-XIX von Fig. 18 durch das Feuerschutz-Türblatt gemäß der zweiten Ausführungsform; und

Fig. 20

eine perspektivische Explosionsdarstellung des Feuerschutz- Türblattes gemäß der zweiten Ausführungsform.

Embodiments of the invention are explained below with reference to the accompanying drawings. It shows:

Fig. 1

a plan view of a fire door with glazing;

Fig. 2a

a partial section along the line II - II according to Fig. 1 by a first fire door having a first thickness a, the fire door being shown together with a frame as part of a first embodiment of a fire door;

Fig. 2b

a partial section along the line II - II according to Fig. 1 by a second fire-protection door leaf having a second thickness b different from the first thickness a, the fire-protection door leaf being shown together with a frame as part of a second embodiment of a fire-protection door;

Fig. 2c

a partial section along the line II - II according to Fig. 1 by a third fire protection door leaf having a third thickness c different from both the first thickness a and the second thickness b, the fire door leaf shown together with a frame as part of a third embodiment of a fire door is;

Fig. 3

a partial section along the line III - III of Fig. 1 by a fire door in a first embodiment;

Fig. 4

a partial section along the line IV-IV of Fig. 3 ;

Fig. 5

an exploded perspective view of the first embodiment of the fire door panel;

Fig. 6

a seen in the direction of a broad side of the door leaf side view of a first Z-profile strip, which is part of a glass or spacer device of the glazing of the fire door of Fig. 3 is;

Fig. 7

seen in the direction of a narrow side of the fire door leaf side view of the first Z-profile strip of Fig. 6 ;

Fig. 8

a plan view of the first Z-profile strip of Fig. 6 ;

Fig. 9

a seen in the direction of a broad side of the fire door leaf side view of a first flat glass strip, which is another part of the glass or spacer of the glazing of the fire door of Fig. 3 is;

Fig. 10

seen in the direction of a narrow side of the fire door leaf side view of the first flat glass strip of Fig. 9 ;

Fig. 11

a plan view of the first flat glass bar of Fig. 9 ;

Fig. 12

a side view seen in the direction of a broad side of the fire door leaf of a second glass retaining strip, which is part of a glass or spacer of the glazing of a second embodiment of a fire door panel;

Fig. 13

a seen in the direction of a narrow side of the fire door leaf side view of the second glass retaining strip of Fig. 12 ;

Fig. 14

a top view of the second glass retaining strip of Fig. 12 ;

Fig. 15

a seen in the direction of a broad side of the fire door leaf side view of the second glazing bar suitably executed second Z-profile strip, which is another part of the glass or spacer of the glazing of the second embodiment of the fire door;

Fig. 16

a seen in the direction of a narrow side of the fire door leaf side view of the second Z-profile strip of Fig. 15 ;

Fig. 17

a plan view of the second Z-profile strip of Fig. 15 ;

Fig. 18

a partial section along the line III-III of Fig. 2 and accordingly Fig. 3 through the fire door according to the second embodiment;

Fig. 19

a partial section along the line XIX-XIX of Fig. 18 through the fire door according to the second embodiment; and

Fig. 20

an exploded perspective view of the fire door according to the second embodiment.

In Fig. 1 is a fire door 3 for a in the Fig. 2a-2c shown, made of sheet steel fire door 1 shown in side view on one of the broadsides. The fire door 1 has a frame 2 made of steel and a fire door 3. The fire door 3 is hinged to hinges 4 hinged to the frame 2. The fire protection door leaf 3 has a door leaf frame construction 5 with a window opening 6 into which a glazing 7 is inserted.

The fire protection door leaf 3 may be formed of different thickness. In the 2a to 2c are exemplary three different versions of the fire door panel 3, each having different thicknesses a, b, c in section along the line II - II of Fig. 1 shown.

The door leaf frame construction 5 is formed by cutting out the window cutout 6 from a sheet steel door panel that represents a sheet metal fire protection door leaf construction, which is manufactured analogously to the corresponding DIN 18082 from a box panel 8 and a cover panel 9. The resulting cavity 10 is filled with an insulating material 11.

Fig. 2a shows a first fire door 3a with a thickness, wherein the small first thickness a, for example, is about 45 mm. The fire protection door leaf 3a with thickness a is here in so-called Dünnfalzausbildung with a Dünnfalz - in the following Dünnfalz 12 - provided. In the thin fold 12, an edge region of the box plate 8 and a peripheral region of the cover sheet 9 bent around are directly adjacent to one another. Below shows Fig. 2b a fire door 3b with thickness b, wherein the slightly larger second thickness b, for example, about 55 mm. In the illustrated example, the fire door 3b with thickness b has a slightly thicker fold 12b.

Below shows Fig. 2c still a third door leaf 3c with thickness c, wherein the third, even greater thickness c, for example, is about 65 mm. The fold of this door leaf 3c with thickness c is formed in the example as a so-called thick fold 14, where a fold cavity 13 is formed by corresponding bending of the edge regions of the box plate 8 and cover plate 9.

Corresponding, not shown here fire doors without glazing are often in the illustrated manner with the different thicknesses a, b, c produced.

Fig. 3 shows how these different thickness fire door leaves 3a, 3b, 3c with the thicknesses a, b, c can be provided in a simple cost-effective manner with a visually appealing glazing 7. Fig. 3 shows the section along the line III - III of Fig. 1 through one of the three fire door leaves 3a, 3b or 3c. The thus generally designated 3 fire door panel has the door leaf frame construction 5 and the glazing 7. The glazing 7 has a fire protection pane 15 and a further pane 16. The fire protection disk 15 is here an F15 disk. The further disc 16 is here a G-glass disc. The fire protection pane 15 and the further pane 16 are held by a glass holding device or spacer 17 on the door leaf frame construction 5 at a distance from each other.

The spacer device 17 has a spacer in the form of a spacer strip 18 and a profile strip device 19. The spacer strip 18 holds the fire protection pane 15 and the other disc 16 with such a distance to each other that their outside broadside surfaces 20, 21 almost, in the example shown here but not completely, flush with the outer broad side surfaces 22, 23 of the box plate 8 and cover plate 9 are arranged.

For each of the possible thicknesses a, b, c there is a correspondingly formed spacer device 17 (not explicitly shown), which holds the fire protection disk 15 and the further disk 16 in the distance corresponding to the thickness a, b, c.

Although only the vertical sides of the window cutout 6 are shown in section III-III, it should be clear that all four edges of the window cutout 6 can be formed as shown, as this the exploded view of Fig. 5 is removable. The transition region of the glazing 7 and the door leaf frame construction 5 is covered on both sides by cover strips 24.

The construction of the spacer device 17 will be described below with reference to the illustration in FIG Fig. 3 explained in more detail. The spacer device 17 essentially consists of the spacer strip 18 and the profile strip device 19. The profile strip device 19 is formed by a Z-profile strip 25 and a substantially flat glass strip 26th

The spacer strip 18 is formed essentially of a fire-resistant cooling fire protection material, which is planked for stiffening and / or optical remuneration at least on its side facing away from the profile strip device 19 side with a metal sheet. In the illustrated example, the spacer strip 18 is a GKF beam 27 with a sheet metal coating 28 on its visible side 29 and the two serving here for detecting the fire protection disk 15 and the other disc 16 narrow sides 30, 31. At its one the distance in the thickness direction determining web 32 of the profile strip device 19 facing fourth side 33 is the fire protection material released. The sheet metal coating 28 may be further optically tempered, for example, be painted or powder coated.

The profile strip device 19 is essentially formed from sheet steel. It has the web 32, which has one of the thickness a, b, c of the fire door leaf 3 corresponding expansion in the thickness direction. The web 32 corresponds more precisely in the embodiment of Fig. 3 the thickness a, b and c of the fire door leaf 3a, 3b, 3c with thickness a, b, c minus the thicknesses of box plate 8 and cover sheet 9 and minus the plate thicknesses of the web 32 still further projecting profile areas of hereafter even closer The profile strip device 19 has a U-shaped partial profile with the web 32 and two legs - first leg 34 and second leg 35 - which fulfill the function of glass retaining strips and the outside broadside surface 20, 21 of the fire protection panel 15 and the border further disc 16 at the edge.

At the bottom of the profile strip means 19 is provided with a further part profile, which serves for fastening and / or stiffening, for example, with one or more edge flags or with strip-like flanks.

In order to use the fire screen 15 and the other disc 16 with the spacer bar 18 in between, the profile bar device 19 is here, as the Fig. 3 and 5 can be seen from several parts, namely from the in the Fig. 6 to 8 in more detail individually illustrated Z-profile strip 25 and one in the Fig. 9 to 11 formed in more detail individually glass retaining strip 26, wherein the Z-profile strip 25, the first leg 34 and the web 32 and the glass retaining strip 26 forms the second leg 35.

In the Fig. 6 to 8 shown Z-profile strip 25 is provided on its side opposite the first leg 34 side with a flange 36. The transition region between the flange 36 and the web 32 is provided at regular intervals with attachment areas, which have here in the direction of the course of the web 32 recessed Tütungslöcher 38.

The in the Fig. 9 to 11 shown flat glazing bar 26 has on its Z-profile bar 25 side facing at appropriate intervals flag-like projections 37 which engage the attachment areas and are also provided with corresponding Tütungslöchern 38 ', which engage flush in the Tutungslöcher 38 and there with screws, namely countersunk -Screws 39 are releasably screwed. How out Fig. 10 As can be seen, the flat glass bar 26 is simply a flat piece of sheet metal intended to bolt the structure.

How best Fig. 3 can the spacer strip 18 is also connected by means of screws, namely countersunk screws 40 with the profile strip device 19.

Like from the Fig. 8 it can be seen that the web 32 of the Z-profile strip 25 is interrupted by means of slots 41.

Fig. 5 shows in an exploded view the attachment of the individual parts of the glazing 7 with the glazing frame and also the attachment between Z-profile strip 25 and flat glazing bar 26. It is here also the corresponding area of the door panel, shown here the cover plate 9. This cover plate 9 is provided corresponding to the tab-like projections 37 with recesses 42 and connected in the intermediate projecting portions 43 with the flange 36 by fasteners 47, such as by screws or by welding such as spot welds or beam welding or by riveting. At 47 will Accordingly, an attachment of a door panel, such. B. cover plate 9 or box plate 8, with the Z-profile bar 25, z. B. a weld or riveting or screwing referred to.

Like from the Fig. 3 that the section III -III of Fig. 1 represents and the Fig. 5 can be removed, the web 32 is surrounded on both sides with fire protection material, such as GKF (plasterboard). A first strip of fire protection material 45 covers the web 32 over its entire thickness range between the two legs 34 and 35 and is thus also inserted between the end faces of the fire protection pane 15 and the further disc 16 and the web 32 and between the spacer bar 18 and the web 32. A second strip of fire protection material 46 is mounted between the insulating material 11 and the web 32 on the inside. The strips of fire protection material 45, 46 are screwed together with the spacer bar 18 by means of the countersunk screws 40 on the web 32. The countersunk screws 39 fasten the flat glass strip 26 to the Z-profile strip 25 and the Z-profile strip 25 and the flat glass strip 26 on the fire protection material and / or the insulation 11th

As a fire protection material for the spacer strip 18 and the two strips of fire protection material 45, 46 are in particular materials into consideration, which give off moisture in the event of fire, such. A Calzitherm®-marketed material or sodium silicate-based materials. For the fire protection panel 15, there are various F15 fire protection panels on the market. For example, Promat offers a F15 disc that can withstand one-sided firing for 25 minutes. Another Pr15 F15 fire protection panel type offered by Promat lasts 20 minutes. Together with the spacer means 17 and formed as a G-glass disc further disc 16 can thus be glazed fire doors 3 for T30 fire doors form.

The enclosed edge regions of the fire protection pane 15 and the further pane 16 are each sealed with silicone. In this way, a wet glazing is formed.

The cover strip 24 is preferably glued. It mainly has a decorative function and could be made of steel or other materials such as stainless steel or aluminum or another light alloy. Non-metals such as glass, ceramics or plastics are also possible. In the illustrated example, the cover strip 24 is part of a cover 54, which may be formed in one piece and thus can be easily handled and fixed.

The Fig. 12 to 14 show in comparison to the flat glass strip 26, a second form of glass retaining strip 50, which is used in a second embodiment of the fire door 3 described in more detail below. The glass retaining strip 50 differs from the flat glass strip 26 substantially by the provision of vertically projecting tabs 52, which serve for further positive connection with the Z-profile strip 25 and thus to stiffen the entire construction. Accordingly, the entire second embodiment differs from the first embodiment only by a design adapted to this additional tab connection. Respective parts as in the first embodiment have corresponding reference numerals and the description thereof can be taken from the above illustration in the first embodiment.

The 15 to 17 show a suitably formed to the second glass retaining strip 50 second Z-profile strip 56. This is provided with receptacles 58, in which the tabs 52 can be inserted. In the illustrated example, the web 32 of the Z-profile strip 56 is provided with bow-shaped notches 59 which project so far from the web 32 in the direction of the fire protection pane 15 and the further disc 16 that the tabs 52 in essentially free of play between the web 32 and the bow-shaped notch 59 can be inserted positively.

Fig. 18 shows accordingly Fig. 3 the section along the line III-III of Fig. 1 for the second embodiment. Fig. 19 shows the section along the line XIX-XIX of Fig. 18 and illustrates the position of the tabs 52 in the second embodiment. As can be seen from these illustrations, the second strip of fire protection material 46 is provided with recesses 60 at the locations having the tabs 52.

Fig. 4 shows for comparison the corresponding section in the first embodiment. As can be seen, here lacks the tabs 52 on the vertical glazing edges. However, as shown here, one or more of the tabs 52 and the bow-shaped notch 59 comprehensive tab connections may be provided on the horizontal glazing edges.

As best of the exploded views of Fig. 5 and 20 For the two embodiments is apparent when inserting the window opening 6 in a sheet metal door leaf construction of one of the door leaf sheets, here the cover plate 9, rectangular-tooth-shaped cut. Thereby, the projecting portions 43 and the recesses 42 are formed. In these recesses 42, the projections 37 of the flat glass strip 26 and the glass retaining strip 50 are added. The flat glass strip 26 and the glass retaining strip 50 thus take the place of the door leaf sheet and do not wear. The projecting areas preferably have, approximately in the center, at least one of the welds or similar fastenings 47 with which the Z-profile strip 25 or 56 can be connected directly to the door leaf metal sheet.

The following will now be with reference to the Fig. 5 and 20 the manufacture of the fire door 3 with different thicknesses a, b, c explained. The procedure is as follows:

First, a solid material door leaf having a certain thickness a is provided. Then, the window cutout 6 is cut out with the teeth comprising the recesses 42 and the protruding portions 43 at the edge region. The second strip of fire protection material 46 is selected or cut from a range of suitable thicknesses and inserted. From an assortment with Z-profile strips 25 or 56, which correspond to the thicknesses a, b and c, the matching to the thickness a of the fire door leaf 3a Z-profile strip 25 or 56 is selected and with the edge regions of box plate 8 and cover plate 9 connected. In the example shown, the first strip of fire protection material 45 is then correspondingly selected or cut and inserted in accordance with its thickness. Then one of the two panes - in the example the fire protection pane 15 - is applied to the first leg 34 and by means of a selected according to the door leaf thickness spacer, d. H. Here, the corresponding spacer strip 18, fixed by screwing the spacer strip 18 by means of countersunk screws 40 to the web 32. Then, the second disc, here the disc 16, used and fixed by screwing the flat glass bar 26 and glass retaining strip 50. In the second embodiment, the tabs 52 are thereby inserted by appropriate insertion of the glass retaining strip 50 in the thickness direction in the receptacles 58. Subsequently, the cover strips 24, i. here the cover 54 glued.

By appropriate storage of different thickness spacers 17, the various door leaf thicknesses a, b, c are glazed with substantially flush glazing 7.

Like from the Fig. 3 and 18 can be seen by these constructions, the outside broadside surfaces 20, 21 almost flush with the

Broad side surfaces 22, 23 of the door leaf frame construction 5. More specifically, the outside broadside surfaces 20, 21 of the glazing 7 are offset by the thickness of the door leaf sheets - box plate 8 and cover plate 9 - flush legs 34, 35 inwards. This thickness corresponds to the usual sheet thicknesses and is at most about 5 mm. The displacement of the fire protection disk 15 and the further disk 16 inwards is preferably such that it does not attract attention visually. Serve for this purpose, the cover strips 24, which conceal the actual given in the embodiments displacement of the broad side surfaces 20 and 23 or 21 and 22. In any case, the offset between these surfaces is independent of the respective door leaf thickness a, b, c. The differences between the door leaf thicknesses a, b, c are compensated by different width spacer strips 18 and correspondingly wider webs 32. Thus, only the cavity between the discs 16, 15 at the different thicknesses, a, b, c is larger or smaller.

Like from the Fig. 3 and 18 it can be seen in the examples shown, the heavier fire protection plate 15 on the side of the stiffer box structure 8 stems from its structure arranged. The fire protection pane 15 is also held on the one piece with the web 32 and thus more stable first leg 34. The lighter additional disc 16 can be handled more easily in the extent somewhat more difficult marginal insertion with subsequent screwing.

LIST OF REFERENCE NUMBERS

1

Fire door

2

frame

3

Fire door leaf

3a

Fire door with thickness a

3b

Fire door with thickness b

3c

Fire door with thickness c

4

door hinges

5

Door leaf frame construction

6

pane

7

glazing

8th

box sheet

9

cover sheet

10

cavity

11

insulation

12

Thin rebate

12b

fold

13

Falzhohlraum

14

thick rebate

15

Fire protection panel

16

another disc

17

Spacer means

18

Spacer bar

19

Moldings facility

20

outside broadside surface

21

outside broadside surface

22

Broadside surface

23

Broadside surface

24

cover strip

25

Z-shaped strip

26

Glazing bead

27

GKF-beam

28

sheet metal coating

29

Main page

30

narrow side

31

narrow side

32

web

33

fourth page

34

first leg

35

second leg

36

flange

37

projections

38, 38 '

Tütungslöcher

39

Countersunk screw

40

Countersunk screw

41

slots

42

recesses

43

prominent areas

45

Strip fire protection material

46

Strip fire protection material

47

attachment

50

Glazing bead

52

tabs

54

Cover

56

second Z-profile strip

58

Recordings

59

bow-shaped notch

60

recess

Claims (20)

1. Fire protection door leaf (3, 3a, 3b, 3c) comprising a door leaf frame construction (5) and a glazing panel (7) being inserted therein, wherein the glazing panel (7) comprises at least a fire protection panel (15) and a further panel (16), wherein said panels are distanced to each other by a distancing means (17) such that their outwardly directed broad side surfaces (20, 21) being turned away from each other are proceeding flush and/or parallel with a distance of about 5 mm at most to a respective one of the broad side surfaces (22, 23) of the door leaf frame construction (5),
   characterized in that the distance means (17) comprises a sectional stripping means (19) comprising said panels at its outer surface.
2. Fire protection door leaf according to claim 1,
   characterized in that the door leaf frame construction (5) is formed from a metal sheet fire protection door leaf construction.
3. Fire protection door leaf according to claim 2,
   characterized in that the metal sheet fire protection door leaf construction comprises a box sheet (8) and a cover sheet (9) and a filling in between, wherein the box sheet (8) and the cover sheet (9) form or support the respective broad side surfaces (22, 23) of the door leaf frame construction (5).
4. Fire protection door leaf according to one of the preceding claims,
   characterized in that the further panel (16) is a glass panel, in particular being formed from fire protection glass, float glass, security glass, toughened glass, composite glass, isolating glass, biased glass, ornamental glass or a combination thereof, not being formed as a fire protection panel.
5. Fire protection door leaf according to one of the preceding claims,
   characterized in that the distancing means (17) comprises a distancing rail (18) being disposed between the panels and being formed from or with a fire protection material, in particular with a material being refrigerative and/or releasing humidity in case of fire.
6. Fire protection door leaf according to claim 5,
   characterized in that at least one visible face (29) of the distancing rail (18) is optically coated, e.g. cladded, blinded, layered or enamelled.
7. Fire protection door leaf according to one of the preceding claims,
   characterized in that the sectional stripping means (19) comprises two limbs (34, 35) to encompass the outer surfaces of said panels being distanced to each other by the inserted distancing means in between and that the limb distance corresponds substantially to the thickness (a, b, c) of the door leaf frame construction (5).
8. Fire protection door leaf according to claim 7,
   characterized in that the sectional stripping means (19) comprises a bar (32) determining the limb distance between said limbs (34, 35).
9. Fire protection door leaf according to claim 8,
   characterized in that said bar (32) is passed by passing orifices, in particular by slits (41).
10. Fire protection door leaf according to one of the claims 8 or 9,
    characterized in that the bar (32) is surrounded at least from one side with a fire protection material being refrigerative in the case of fire and in particular being surrounded from both sides by fire protection material being refrigerative in case of a fire.
11. Fire protection door leaf according to claims 7 to 10,
    characterized in that the section stripping means (19) is formed by a plurality of parts being, in particular resolvable, connected together, wherein a first part comprises a first one of said limbs (34) and a second part comprises the second one of said limbs (35).
12. Fire protection door leaf according to claim 11,
    characterized in that the first part of the sectional stripping means (19) is a Z-sectional strip (25, 56).
13. Fire protection door leaf according to one of the claims 11 or 12,
    characterized in that the second part of the sectional stripping means (19) is a glass rail (26) or a glass retaining rail (50) being formed substantially flat and having flaps (52) protruding perpendicular from a flat rail portion to be disposed parallel to a door leaf broad side (20-23).
14. Fire protection door leaf according to one of the claims 11 to 13,
    characterized in that the parts of the sectional stripping means (19) are screwed to each other.
15. Fire protection door leaf according to one of the preceding claims,
    characterized in that the sectional stripping means (19) is formed from metal sheet.
16. Fire protection door leaf according to one of the preceding claims,
    characterized by a cover rail (24) and/or a cover frame (54) covering at least in part the distancing means (17) and/or a groove in a portion between the glazing panel (7) and a broad side surface (22, 23) of the door leaf frame construction (5).
17. Fire protection door leaf according to one of the preceding claims,
    characterized in that the outwardly directed broad side surfaces (20, 21) of the glazing panel (7) are proceeding parallel with a distance according to the thickness of a sheet strip being effective as a glass retaining rail into the interior of the fire protection door leaf (3, 3a, 3b, 3c) and offset to the respective outwardly directed broad side surface (22, 23) of the door leaf frame construction (5).
18. System for manufacturing a fire protection door leaf (3) according to one of the preceding claims,
    with a selection of differently thick door leaf frame construction, one or two kinds of panels made from light transmitting material, being at least partly formed in a fire protection construction and being implemented independently from the door leaf thickness (a, b, c) to be attained, as well as
    a selection of distancing means (17) respectively matching the thickness of the door leaf frame construction (5) and having a sectional stripping means (19) to outwardly encompassing the panels.
19. Fire protection door (1) comprising a fire protection door leaf (3, 3a, 3b, 3c) and a frame (2),
    characterized in that the fire protection door leaf (3, 3a, 3b, 3c) is formed according to claims 1 to 17.
20. Method for manufacturing fire protection door leaves (3, 3a, 3b, 3c) according to one of the preceding claims 1 to 17, having different thicknesses (a, b, c),
    characterized by:

    a) manufacturing the door leaf frame construction (5) having different thicknesses (a, b, c),

    b) providing distancing means matching to the respective thicknesses (a, b, c) of the door leaf frame constructions (5) and having a sectional stripping means (19) for outwardly encompassing the panels,

    c) inserting substantially flush a similar pair of said panels (15, 16) by the matching distancing means (17) into the differently thick door leaf frame construction (5).

Images