ES2364154T3 - DOOR PROTECTION AGAINST CRYSTALLED FIRE. - Google Patents

Abstract

Fire protection door leaf (3, 3a, 3b, 3c), which has a door leaf frame construction (5) and a glazing (7) inserted in it, in which the glazing (7) has at least one fire protection glass (15) and another glass (16), in which the two crystals are distanced by means of a spacer installation (17), such that their outer wide lateral surfaces (20, 21 ) away from each other extend in each case towards a corresponding wide lateral surface (22, 23) of the frame construction of the door leaf (5) flush in the surface and / or parallel at a distance of maximum 5 mm approximately, characterized in that the spacer installation (17) has a profiled slat installation (19) that surrounds the crystals on the outer side.

Description

The invention relates to a fire protection door leaf, which has a door leaf frame construction and a glazing inserted therein. In addition, the invention relates to a system and method for the manufacture of fire protection door leaves of this type as well as to a fire protection door which is provided with a fire protection door leaf. of this type.

Fire protection doors belong to fire protection closures, the provision of which is prescribed many times through construction regulations, particularly in public buildings. Fire protection closures are standardized in Germany and in Europe, among others, through DIN 4102 and EN 1634. They require an administrative approval. To obtain such approval, the fire protection door constructions are tested in a combustion test, depending on whether the doors withstand 15, 30, 60 or 90 minutes a lateral application of fire under DIN conditions (DIN 4102, Part 5) , are designated as fire protection doors T15, T30, T60 or T90. A particular type of construction in the form of steel sheet doors is standardized through DIN 18082. For steel sheet doors, which are manufactured in accordance with this Standard, no special combustion test must be performed. These steel sheet doors according to DIN are characterized by a particularly favorable type of manufacturing. The door leaves of these fire protection closures according to DIN 18082 are formed by a box plate and a cover plate, which surround a hollow space filled with insulating material.

In addition, there are also fire protection glazing and fire protection glass doors on the market. The door leaves of such glazed fire protection doors have a door leaf frame and a fire protection glass retained therein as a door leaf fill. Such glazed fire protection doors require special approval. The known glazed fire protection sheets are most expensively constituted and are of high optical quality and are therefore expensive.

While the relatively favorable cost steel sheet doors according to DIN mentioned above are most often used in functional spaces, such as basements or warehouses of commercial enterprises, glazed fire protection doors find application most of the time in objects of high value, such as office buildings or hotels.

In particular, fire protection door sheets according to DIN 18082 are manufactured, in accordance with special requirements, in different thicknesses in large series industrial manufacturing.

From document DE 203 15 218 U1 a fire protection door is deduced with a glass frame fire protection door leaf forming the preamble of claim 1. The fire protection door leaf It comprises a door leaf frame construction with a door leaf gap and two crystals inserted in it and configured as fire protection crystals. To obtain a flush surface between the frame construction of the door leaf and the crystals, spacers are inserted between the crystals. In addition, a rubber sealing material is inserted between the glass and the door leaf recess. For fixing the crystals in the door leaf recess, these are glued by means of an adhesive.

In document DE 16 83 055 A1 a fire-inhibiting door is published with a fire-inhibiting door leaf correspondingly, with a glazing inserted therein, which is used in the construction of elevators. The door leaf has a cover plate and a box plate, so that the two plates are joined together for fixing by means of U-shaped sheet ribs. The glazing comprises two wire mirror crystals configured as fire protection glasses, which are inserted flush with the door plates, the two crystals being fixedly retained by means of ribs in this position. A perforated sheet, which is connected to the ribs, extends between the two crystals for protection against fire. The role of the perforated sheet in case of fire is to prevent a fire penetration.

From the document DE 101 10 795 A1 a fire protection door leaf is deduced in the form of a metal sheet door frame construction with window recess and glazing. The fire protection door leaf comprises a cover plate and a box layer. The glazing has only a single fire protection glass, which is essentially thinner than the thickness of the sheet metal frame construction. The glazing is fixed by means of a profile in the construction of door leaf frame. The glazing is inserted in the recess such that a supplement is present between a top surface of the door leaf frame construction and a surface of the glazing.

The problem of the invention is to create a glazed fire protection door leaf with the characteristics of the preamble of claim 1, which can be manufactured industrially more easily.

This problem is solved by means of a fire protection door leaf with the characteristics of the attached claim 1.

Advantageous configurations are subject to the dependent claims.

According to the invention, in a fire protection door leaf with a door leaf frame construction and with a glazing placed therein, the glazing has at least one fire protection glass and another glass. These two crystals are distanced by means of a spacing installation, so that they end up approximately flush on the surface with the wide lateral surfaces of the door leaf frame construction or in such a way that the wide sides of the two crystals, which in each case they are separated from each other, they are arranged at least in the area near the wide lateral sides of the frame constructions of the door leaf. In this way, different frame constructions of the door leaf can be glazed in each case with an equal pair of crystals while keeping the view of the wide sides attractive from the optical point of view. Only a suitable distancing installation should be provided, respectively. The crystals always end, also in the case of different thicknesses of the door leaf, with the construction of the door leaf frame, so that despite the intended glazing, a unitary door leaf body is obtained completely without stepping on the wide surfaces of the door leaf or at least without particularly striking steps on these wide surfaces. The measure of approximately 5 mm for a step is hardly considered as yet perfectly optimal in this case and, therefore, can still be considered essentially flush on the surface. But, in general, in this case reference is also made to other relative dimensions; in the case of smooth, thin small door leaves, smaller steps are more striking than in large thick door leaves with structured surfaces. In general, the invention aims at an essentially constant optical impression of the wide lateral surfaces also of glazed fire protection doors of different thickness.

The invention is especially suitable for the glazing of fire protection steel sheet doors manufactured in accordance with DIN 18082 with case plate and cover plate. Through the application of the invention for the glazing of such door leaves manufactured according to DIN, a fire protection door leaf of especially favorable cost is created with optimally attractive glazing. Accordingly, the door leaf frame construction is preferably formed by a metal sheet fire protection door leaf construction. In addition, this construction preferably has a box plate and a cover plate and a filling in the middle of them. The box plate and the cover plate then form the respective wide sides of the frame construction of the door leaf. For the manufacture of this door leaf, for example, corresponding fire protection door leaves according to DIN 18082 can be manufactured and then can be cut in the center for the formation of a glazing hole and can be reinforced the body of the door leaf trimmed in this way by means of the spacing installation and then the two windows can be inserted. Alternatively, a correspondingly cut box plate and a cover plate could be joined at the same time using the spacer installation for the construction of the door leaf frame.

During glazing, only one fire protection glass is preferably used, so that the construction is, in general, of favorable cost. Such fire protection crystals can be purchased on the market as F15 crystals, F30 crystals or also with correspondingly higher fire protection requirements. They consist of several layers of transparent material, in particular glass, with fire protection cooling material, in general, of course placed in the middle of them. Since another glass is still used in the glazing according to the invention, the fire protection door leaf according to the invention can also fulfill, in one embodiment, a fire protection glass with more classification Low fire, a higher classification of fire protection. For example, in the case of using an F15 glass, a T30 door leaf can be manufactured.

Accordingly, this other crystal must not fulfill any fire protection function. It is preferred performed only, as it were, as G-crystal. Preferred materials for this are simple floating glass, or more preferably safety glass, such as one glass safety glass (ESG), composite glass safety glass (VSG), etc. Depending on the requirements, insulated glass or prestressed glass or other hardened glass can also be used. Ornamental glass can also be used, which give the door a corresponding high quality appearance or reduce transparency and yet let light through. Therefore, by means of the invention it is possible to fulfill very different technical cost of fire protection without very much optical impressions of the glazing, simply using a glass works for the other glass.

The spacer installation preferably has a spacer strip, arranged between the crystals, of a fire protection material. Preferably, the spacer installation - especially in the case of using a sheet metal construction - serves to reinforce the construction of the door leaf frame, which is mechanically weakened in a corresponding manner due to the front window opening to the original door leaves according to DIN. Accordingly, the use of corresponding reinforcing elements in or next to the spacer installation between the sheets forming the wide sides is preferred. When the distance strip is now constituted by a fire protection material that cools in case of fire, such partial reinforcements can be used without adverse effects for the fire protection function of the door leaf. Thermal bridges formed through metal bridges that extend in the direction of thickness could otherwise lead in case of fire the high temperature through the thickness of the door leaf. The fire protection material of the cover strip yields, for example, moisture, whose evaporation contributes in case of fire to the cooling of the metal bridges. Or, in general, it presents a material that, in case of fire, modifies its aggregate state, the energy necessary for the modification of the heat state of the penetrating fire being extracted. In this way, the side away from the fire remains colder. Therefore, the fire protection conditions that provide, according to the corresponding standards, also certain temperature limits on the side away from the fire can be met.

Since the part of the spacer arrangement arranged between the crystals can be seen through the two crystals, this installation is preferably configured, in general, as a spacer (and not interrupted, for example in the form of distance blocks). At least the visible surface of the distance strip is more optimally bonded. To this end, it is plated or coated, for example with a veneer sheet. Either it is coated or lacquered with an optimally attractive material.

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

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maintenance of a distance between the crystals and, therefore, adaptation of the glazing to the thickness of the frame construction of the door leaf;

•

reinforcement of the door leaf frame construction;

•

crimping and retention of the crystals as a crystal lath.

To keep the crystals in place, the spacer installation in an embodiment of the invention features a profiled slat installation that surrounds the crystals on the outer side.

The profiled slat installation furthermore preferably features a profiled slat for the reinforcement of the door leaf frame construction. For the fulfillment of the function of the glass slat, the profiled slat installation preferably has two arms to surround the outer surface of the two crystals, which are spaced apart by means of a spacer inserted between them - preferably the spacer strip previously mentioned-. The distance between the arms more preferably corresponds essentially to the thickness of the door leaf frame construction. For the determination of the distance of the arms, the profiled slat installation preferably has a rib between the arms. The rib is preferably configured as part of a profile of a profiled slat. The profiled slat is preferably formed of metal and is more preferably formed of sheet metal, which has been correspondingly cold molded, for example in a profiling machine. To minimize the heat conducted in case of fire through the rib, the rib may be interrupted with through holes. The through holes are preferably formed by elongated grooves that extend transversely to the thickness direction, which reduces the cross-sectional area that contributes to temperature conduction, without harming stiffness more than is due. For the additional minimization of the heat provided in case of fire through the rib, this rib is more preferably provided at least on one side with a fire protection material that cools in case of fire. This material can be, for example, the fire protection material of the spacer. There are also fire protection crystals, which give moisture in case of fire on their front surfaces and thus also contribute when they rely on the rib for cooling. The rib may also be provided over its entire length in the direction of thickness on one side or also on both sides with fire protection material. Alternatively, but currently less preferred, because it is more expensive and expensive in design and manufacturing, the rib is formed of a poorly conductive material.

To facilitate the insertion or replacement of the crystals, the profiled slat installation is preferably constituted by several parts that can be connected to each other, the first part of the arms having a first part and the second arm having a second part. The parts are preferably bonded together, for example, screwed together.

As a profiled reinforcing strip, a Z-shaped profiled strip is preferably used. Such a shape can be easily profiled from sheet steel. The Z-shaped profiled strip preferably forms the first of the various parts of the profiled ribbon installation and thus presents the first of the arms that surround the crystals on the outer side. The second arm is then preferably configured by means of an essentially flat slat. For the threaded connection of the flat strip in the Z-shaped profiled strip, the flat strip more preferably presents several projections. These can fit, for example, in correspondingly fitted recesses in a profiled tab of the Z-shaped profile, which projects on the side opposite the first arm and can be fixed there removably.

To cover the retention and / or joint installation, which are configured between the wide sides of the frame construction of the door leaf and the outer wide lateral sides of the glazing, a cover strip is preferably provided, more at least one cover strip is preferred in each case for each marginal area of the glazing. The slat (s) are more preferably fixed in a way not visible from the outside. This can be done through elastic or glued lace. An elastic fit could be made by means of projections provided on the back side of the cover strip, which engage behind holes in the door plates or the like.

The invention creates a system for the manufacture of a glazed sheet of fire protection door, with a glazing of several possible thicknesses and essentially flush on the surface. For the manufacture of such door leaves, the system according to the invention provides an assortment of door frame frames of different thicknesses and an assortment of distance installations, which are adapted in each case to the thickness of the constructions. of door leaf frame in configuration according to the invention. Then it is sufficient to prepare or keep prepared two crystals of light-transparent material, which are configured, at least in part, in realization of fire protection, which can be used in all frame constructions of the door leaf Different thicknesses

With the fire protection door leaf according to the invention a fire protection door can be formed, which resists a unilateral fire application for at least 15, preferably for at least 30 minutes.

The process according to the invention for the manufacture of fire protection door sheets in different thicknesses has the steps of the

•

manufacture of door leaf frame constructions with different thicknesses,

•

preparation of the distance installations adapted in each case to the thicknesses of the door leaf frame constructions in configuration according to the invention, and

•

flush insertion on the surface in each case of an equal pair of crystals by means of the appropriate distance installations in door leaf frame constructions of different thicknesses.

The door leaves with different thicknesses can be manufactured in this case, for example, in parallel production lines, more or less parallel or simultaneously and can be cut in one or several subsequent glazing stations and can be glazed by means of The distance facilities. Alternatively, a production line is used first for the manufacture of a door leaf frame construction with a first thickness and the following glazing of this door leaf frame construction with the first thickness. If another thickness of the door leaf must then be manufactured, the production line is installed in a corresponding manner, making its glazing after the construction of the door leaf frame construction with the second thickness. Therefore, the stages can be performed at the same time or successively for different thicknesses.

Examples of embodiment of the invention are explained in detail below with the help of the attached drawing. In this one: Figure 1 shows a top plan view on a leak protection door leaf with

glazing;

Figure 2a shows a partial section along the line II-II according to Figure 1 through a first fire protection door leaf with a first thickness a, in which the protection door leaf is shown against fire together with a zero as part of a first embodiment of a fire protection door;

Figure 2b shows a partial section along the line II-II according to Figure 1 through a second fire protection door leaf with a second thickness b different from the first thickness a, in which the fire protection door leaf together with a fence as part of a second embodiment of a fire protection door;

Figure 2c shows a partial section along the line II-II according to the figure through a third fire protection door leaf with a third thickness c different from both the first thickness a and also the second thickness b, in which the fire protection door leaf is shown together with a fence as part of a third embodiment of a fire protection door;

Figure 3 shows a partial section along the line III-III of Figure 1 through a sheet of

fire protection door in a first embodiment; Figure 4 shows a partial section along the line IV-IV of Figure 3; Figure 5 shows an exploded perspective view of the first embodiment of the

fire protection door leaf; Figure 6 shows a side view contemplated towards a wide side of the door leaf of a first Z-shaped profiled strip, which is a part of a glazing installation or

distance glazing installation of the fire protection door leaf of figure 3; Figure 7 shows a side view contemplated in the direction of a narrow side of the door leaf of

fire protection of the first Z-shaped profiled strip of Figure 6; Figure 8 shows a top plan view of the first Z-shaped profiled strip of Figure 6; Figure 9 shows a side view contemplated in the direction of a wide side of the door leaf of

fire protection of a first flat glass slat, which is another part of the glazing installation or glazing spacer installation of the fire protection door leaf of Figure 3;

Figure 10 shows a side view contemplated in the direction of a narrow side of the sheet of

fire protection door of the first flat glass strip of figure 9; Figure 11 shows a top plan view of the flat glass strip of Figure 9; Figure 12 shows a side view contemplated in the direction of a wide side of the door leaf of

fire protection of a second retaining strip, which is a part of the glazing installation or glazing spacer installation of a second embodiment of the fire protection door leaf;

Figure 13 shows a side view contemplated in the direction of a narrow side of the door leaf of

fire protection of the second glass retention strip of figure 12; Figure 14 shows a top plan view of the second glass retention strip of Figure 12; Figure 15 shows a side view contemplated in the direction of a wide side of the door leaf of

fire protection of a second Z-shaped profiled strip adapted to the second glass strip, which is another part of the glazing installation or glazing spacer installation of the second embodiment of the protective door leaf against the fire;

Figure 16 shows a side view contemplated in the direction of a narrow side of the door leaf of

fire protection of the second Z-shaped strip of Figure 15; Figure 17 shows a top plan view of the second Z-shaped profiled strip of Figure 15; Figure 18 shows a partial section along the line III-III of Figure 2 and according to Figure 3

through the fire protection door leaf according to the second embodiment; Figure 19 shows a partial section along the line XIX-XIX of Figure 18 through the fire protection door leaf according to the second embodiment; and Figure 20 shows an exploded perspective representation of the fire protection door leaf according to the second embodiment.

Figure 1 shows a fire protection door leaf 3 for a fire protection door 1 shown in Figures 2a-2c, made of steel sheet, in side view on one of the wide sides. The fire protection door 1 has a steel fence 2 and a fire protection door leaf 3. The fire protection door leaf 3 is pivotably suspended in door hinges 4 in the fence 2 The fire protection door leaf 3 has a door leaf frame construction 5 with a window recess 6, in which a glazing 7 is inserted.

The fire protection door leaf 3 can be configured in different thicknesses. In figures 2a to 2c, three different embodiments of the fire protection door leaf 3 with different thicknesses a, b, c, respectively, are shown by way of example in the section along the line II - II of figure 1.

The frame construction of the door leaf 5 is formed by trimming the hollow of the window 6 from a sheet of steel sheet door, which represents a fire door sheet construction of metal sheet and which It is manufactured similarly to the corresponding DIN 18082 Standard from a box plate 8 and a cover plate 9. The hollow space 10 formed in this way is filled with an insulating material 11.

Figure 2a shows a first fire protection door leaf 3a with thickness a, in which the first thickness reduced to is approximately 45 mm. The fire protection door leaf 3a with thickness a is provided here, so to speak, in a fine renvalso configuration, with a fine renvalso - hereinafter fine renvalso 12-. In the fine reinforcement 12, a marginal area of the box plate 8 and a marginal area of the cover sheet 9 folded around are directly adjacent to each other. Below, Figure 2b shows a fire protection door leaf b with thickness b, in which the second thickness b slightly larger is, for example, approximately 55 mm. In the example shown, the fire protection door leaf 3b with thickness b has a slightly thicker reinforcement 12b.

Below, Figure 2c still shows a third door leaf 3c with thickness c, in which the third thickness c is still thicker, for example, approximately 65 mm. The renvalso of this door leaf 3c with thickness c is configured in the example, so to speak, as thick renvalso 14, where through corresponding bends of the marginal areas of the box plate 8 and the cover plate 9 is formed a hollow space of renvalso 13.

Corresponding fire protection door sheets, not shown here, are often manufactured in the manner depicted with the different thicknesses a, b, c.

Figure 3 now shows how these fire protection door sheets 3a, 3b, 3c of different thicknesses can be provided with the thicknesses a, b, c in the simplest and most favorable way with an optimally attractive glazing 7. Figure 3 shows for this purpose the section along the line III-III of Figure 1 through one of the three fire protection door leaves 3a, 3b or 3c. The designated fire protection door leaf, therefore, in general with 3 presents the construction of fire protection leaf frame 5 and glazing 7. The glazing 7 presents a fire protection glass 15 and another glass 16. The fire protection glass 15 is here an F15 crystal. The other crystal 16 is here a G-crystal. The fire protection glass 15 and the other glass 16 are kept at a distance from each other by means of a retention or spacer installation 17 in the frame construction of the door leaf 5.

The spacer installation 17 has a spacer in the form of a spacer strip 18 and a profiled slat installation 19. The spacer strip 18 keeps the fire protection glass 15 and the other crystal 16 at a distance such that its wide outer side surfaces 20, 21 are arranged almost flush, but not entirely in the example shown here, with the wide outer side surfaces 22, 23 of the box plate 8 and the cover plate 9.

For each of the possible thicknesses a, b, c there is a spacer installation 17 configured correspondingly (not explicitly represented), which keeps the fire protection glass 15 and the other glass 16 at the distance corresponding to the thickness a , b, c. The profile slat installation 19 serves to reinforce the frame construction of the door leaf 5 in the recess of the sale 6. Although only the vertical sides of the window recess 6 are represented in section III-III, It should be clear that all four edges of the window 6 opening can be configured as shown, as can be deduced from the exploded orderly representation of Figure 5. The transition zone of the glazing 7 and the frame construction of the door leaf 6 is covered on both sides by cover strips 24.

The structure of the spacer installation 17 is explained in detail below with the aid of the representation in Figure 3. The spacer installation 17 is essentially constituted by the spacer strip 18 as well as the profiled slat installation 19. The slat installation Profiling 19 is formed by a Z-shaped profiled strip 25 as well as by an essentially flat glass strip 26.

The distance strip 18 is essentially formed by a fire protection material, which is coated with a sheet for reinforcement and / or optical enhancement at least on its side away from the profiled slat installation 19. In the example shown, the strip spacer 18 is a GKF radius 27 with a veneer lining 28 on its visible side 29 as well as on the two narrow sides 30, 31 which are used here for crimping the fire protection glass 15 and the other glass 16. In its fourth side 33 directed towards a rib 32, which determines the distance in the thickness direction, of the profiled slat installation 19 is released the fire protection material. The sheet coating 28 may be even more optimally bonded, for example lacquered or powder coated.

The profile slat installation 19 is essentially made of sheet steel. It has the rib 32, which has a dilation in the thickness direction, which corresponds to the thickness a, b, c of the fire protection door leaf 3. The rib 32 corresponds more precisely seen in the embodiment example of the Figure 3 to the thickness a, b, or c of the fire protection door leaf 3a, 3b, 3c with thickness a, b, c minus the sheet thicknesses of the box plate 8 and the cover plate 9 and less the sheet thicknesses of the profiled areas, which are further distanced from the rib 32, of the Z-shaped profiled strip 25 explained in more detail below. The profiled slat installation 19 has a partial U-shaped profile with the rib 32 and two arms - first arm 34 and second arm 35 -, which fulfill the function of glass retention slats and set the lateral surface on the marginal side exterior width 20, 21 of the fire protection glass 15 and the other glass 16.

On the lower side, the profiled slat installation 19 is provided with another partial profile, which serves, for example, for fixing and / or reinforcement, for example with one or several marginal banners or with slat-shaped flanks.

In order to be able to insert the fire protection glass 15 and the other glass 16 with the distance strip 18 in the middle, the profiled ribbon installation 19 is formed here, as can be deduced from figures 6 to 8, by several parts , namely, by the Z-shaped profiled strip 25 shown in more detail in Figures 6 to 8 and a glass retaining strip 26 represented in particular in more detail in Figures 9 to 11, so that the profiled ribbon Z-shaped 25 forms the first arm 34 and the rib 32 and the glass slat 26 form the second arm 35.

The Z-shaped profiled ribbon 25 shown in Figures 6 to 8 is provided with a flange on its side opposite the first arm 34. The transition zone between the flange 36 and the rib 32 is provided here at regular distances with areas of fixing, presented here with bag holes 38, which stand out in the direction of the development of the rib 32.

The flat glass strip 26 shown in Figures 9 to 11 has on its side directed towards the Z-shaped profiled strip projections 37 in the form of a banner at corresponding distances, which affect the fixing areas and in the same way are provided with corresponding bag holes 38 ', which fit flush in the bag holes and are removably screwed there with screws, namely countersunk head screws 39. As can be deduced from Figure 10, the glass strip Flat 26 is simply a flat piece of sheet metal, which is intended for screwing the construction.

As can best be deduced from Figure 3, the distance strip 18 can be connected in the same way by means of screws, namely countersunk head screws 40 with the profiled strip installation 19.

As can be deduced from Figure 8, the rib 32 of the Z-shaped profiled strip 25 is interrupted by means of grooves 41.

Figure 5 shows in an exploded representation the fixing of the individual pieces of the glazing 7 with the glazing frame and also the fixing between the Z-shaped profiled strip 25 and the flat glass strip 26. The area is also shown here corresponding to the door plate, here of the cover plate 9. This cover plate 9 is provided correspondingly to the projections 37 in the form of a banner with recesses 42, and in the projecting areas 43 in the middle it is connected with the flange 36 by means of fasteners 47, such as screws or by means of welded joints, such as spot welding or beam welding or riveting. Accordingly, with 47 a fastening of a door plate, such as cover plate 9 or box plate 8, is designated with the profiled strip in the form of Z 25, for example a welded joint or a riveted joint or a bolted joint.

As can be deduced from figure 3, which represents section III-III of figure 1 and from figure 5, the rib 32 is surrounded on both sides with fire protection material, for example GKF (stone cardboard ). A first strip of fire protection material 45 covers the rib 32 over its entire thickness zone between the two arms 34 and 35 and, therefore, is also inserted between the front sides of the fire protection glass 15 and of the other glass 16 and the rib 32 and between the spacer strip 18 and the rib 32. A second strip of fire protection material 46 is placed on the inner side between the insulating material 11 and the rib 32. The strips of material of fire protection 45, 46 are screwed together with the distance strip 18 by means of the countersunk head screws 40 in the rib 32. The countersunk head screws 39 fix the flat glass strip 26 on the profiled slat Z 25 and the profiled slat in the form of Z 25 and the flat glass slat 26 in the fire protection and / or insulation material 11.

As fire protection material for the spacer strip 18 and the two strips of fire protection material 45, 46, especially materials that yield moisture in the case of fire are contemplated, such as a material distributed under the Calzitherm® Mark or materials based on sodium silicate. For the fire protection glass 15 there are different fire protection crystals F15 on the market. For example, the Fa. Promat offers an F15 crystal, which resists a unilateral fire application for 25 minutes. Another type of F15 fire protection glass offered by the Fa. Promat resists for 20 minutes. Together with the spacer installation 17 and the other glass 16 configured as a G-glass glass, glazed fire protection door sheets 3 for fire protection doors T30 can be formed in this way.

The marginal areas set on the fire protection glass 15 and the other glass are sealed in each case with silicone. In this way, a wet glazing is configured.

The cover strip 24 is preferably glued. It mainly has decorative function and could be made of steel or other materials such as noble steel or aluminum or from another light metal alloy. Also not possible are metals such as glass, ceramics or plastics. In the example shown, the cover strip 24 forms part of a cover frame 54, which can be configured in one piece and, therefore, can be easily manipulated and fixed.

Figures 12 to 14 show, in comparison with the flat glass slat 26, a second form of a glass slat 50, which is used in a second embodiment described in detail below the protective door leaf against fire 3. The retention strip of the glass 50 differs from the flat glass strip 26 essentially by the provision of vertically spaced flanges 52, which serve for the additional connection in positive connection with the profiled strip in Z 25 and, Therefore, for the reinforcement of the entire construction. Correspondingly, the entire second embodiment only differs from the first embodiment by a configuration adapted to this additional flange joint. The corresponding parts as in the first embodiment bear corresponding reference signs and their description can be extracted from the previous representation in the first embodiment.

Figures 15 to 17 show a second Z-shaped profiled strip 56 adapted to the second retention strip of the glass 50. This profiled ribbon is provided with housings 58, in which the tabs 52 can be inserted. In the example In the embodiment shown, the rib 32 of the Z-shaped profiled strip 56 is provided with grooves 59 in the form of a clamp, protruding from the rib 32 in the direction of the fire protection glass 15 and the other glass 16 to the point of that the flanges 32 can be inserted in positive connection essentially free of play between the rib 32 and the groove 59 in the form of a clamp.

Figure 18 shows correspondingly to figure 3 the section according to line III-III of figure 1 for the second embodiment, figure 19 shows the section along line XIX-XIX of figure 18 and illustrates the position of the tabs 52 in the second embodiment. As can be deduced from these representations, the second strip of fire protection material 46 is provided with recesses 60 at the locations of the flanges 52.

Figure 4 shows for comparison, the corresponding section in the first embodiment. As shown, tabs 52 on the vertical edges of the glazing are missing here. However, one or more flange joints, which surround the flanges 52 and the recess 59 in the form of a clamp, can also be provided, as shown herein, on the horizontal edges of the glazing.

As is best deduced from the orderly cleaved representations of Figures 5 and 20 for the two embodiments, during the realization of the window recess 6 in a sheet metal door construction, one of the sheet metal sheets door, here the cover plate 8, is cut in a rectangular serrated shape. In this manner, the protruding areas 43 and the recesses 42 are formed. In these recess 42 the projections 37 of the flat glass slat 26 or the glass retaining strip 50 are housed. The flat glass slat 26 and the flat glass slat 26 glass retention 50 thus occupies the space of the door leaf plate and does not support. The protruding areas preferably have at least one of the welded joints or similar fasteners 47 in the center in each case, with which the Z-shaped profile strip 25 or 56 can be connected directly to the door leaf plate.

The following explains now with reference to Figures 5 and 20 the manufacture of the fire protection door leaf 3 with different thicknesses a, b, c. In this case, proceed as follows:

In the first place a door leaf of solid material with a specific thickness is prepared. Next, the window opening 6 is cut with the teeth comprising the recesses 42 and the projecting areas 43 in the marginal zone. The second strip of fire protection material 46 is selected from an assortment of suitable thicknesses or cut to size and inserted. From an assortment with profiled slats in the form of Z 25 or 56, corresponding to the thicknesses a, b, and c, the profiled list in the form of Z 25 or 56 is selected that adjusts to the thickness a of the door leaf of fire protection 3a and is connected to the marginal areas of the box plate 8 and the cover plate 9. In the example shown, the first strip of fire protection material 45 is still selected in accordance with Its thickness is cut to size and inserted. Then one of the two crystals is placed - in the example the fire protection glass 15 - on the first arm 34 and fixed by means of a spacer selected according to the thickness of the door leaf, that is, here the corresponding distance strip 18, through screwed connection of the distance strip 18 by means of the countersunk head screws 40 in the rib 32. Then the second glass, here the glass 16, is inserted and fixed through a screwed joint of the flat glass slat 26 or the retention strip of the glass 50. In the second embodiment, the tabs 52 are inserted in this case through corresponding insertion of the retention strip of the glass 50 in the direction of the thickness in the housings 58. The cover slats 24 are then glued, that is, here the cover frame 54.

Through the corresponding storage of spacers 17 of different thicknesses, the different thicknesses of door leaves a, b, c can be glazed with glazing 7 essentially flush with the surface.

As can be seen from Figures 3 and 18, through these constructions, the outer wide lateral surfaces 20, 21 are almost flush on the surface with the wide lateral surfaces 22, 23 of the frame construction of the sheet of the door 5. More precisely, the wide outer side surfaces 20, 21 of the glazing 7 are displaced inwardly in the measure of the thickness of the arms 34, 35 that end flush with the sheets of the leaf door - box plate 8 and sheet cover 9-. This thickness corresponds to the usual sheet thicknesses and is at most approximately 5 mm. The displacement of the fire protection glass 15 and the other crystal 16 inwardly is preferably such that it is not optimally striking. Cover strips 24 are also used for this purpose, which cover the displacement actually given in the examples of realization of the wide lateral surfaces 20 and 23 or 21 and 22. The displacement between these surfaces is in any case, respectively, independent of the respective thickness of the door leaf a, b,

C. The differences between the thicknesses of the door leaves are compensated by means of spacer slats of different width 18 and through wider ribs 32 correspondingly. Thus, only the hollow space between the crystals 16, 15 is greater or lesser in the different thicknesses a, b, c.

As can be deduced from Figures 3 and 18, in the examples shown, the heavier fire protection glass 15 is arranged on the side of the more reinforced case plate 8 in terms of its structure. The fire protection glass 15 is also retained in the first arm 34 in one piece with the rib 32 and, therefore, more stable. The other lighter glass 16 can be more easily manipulated during insertion close to the slightly heavier edge in this case with next screwed connection.

List of reference signs 1 Fire protection door 2 Fence 3 Fire protection door leaf 3a Fire protection door leaf with thickness a 3b Fire protection door leaf with thickness b 3c fire protection door with thickness c 4 Door hinges 5 Door leaf frame construction 6 Window hollow 7 Glazing 8 Box plate 9 Cover plate 10 Hollow space 11 Insulation material 12 Fine reinforcement 12b Renvalso 13 Hollow space Renvalso 14 Thick Renvalso 15 Fire protection glass 16 Other glass 17 Distance installation 18 Distance strip 19 Profiling slat installation 20 Wide exterior lateral surface 21 Wide exterior lateral surface 22 Wide lateral surface 23 Wide lateral surface 24 Cover slat 25 Profiled slat Z shape 26 Glass retention strip 27 GKF radius 28 Sheet metal cover 29 Visible side 30 Side narrow 31 Narrow side 32 Rib 33 Quarter side 34 First arm 35 Second arm 36 Tab 37 Projections 38, 38 'Bag holes 39 Countersunk head screws 40 Countersunk head screws 41 Grooves 42 Cut-outs 43 Outstanding areas 45 Strips of protective material the fire 46 Strips of fire protection material 47 Fixing 50 Glass retaining strip 52 Tabs 54 Cover frame 56 Second Z-shaped slat 58 Housings 59 Clamp-shaped notch 60 Cut-out

Claims (20)

1.- Fire protection door leaf (3, 3a, 3b, 3c), which has a door leaf frame construction (5) and a glazing (7) inserted in it, in which the glazing ( 7) has at least one fire protection glass (15) and another glass (16), in which the two crystals are spaced apart by means of a spacer installation (17), such that their outer wide lateral surfaces ( 20, 21) away from each other extend in each case towards a corresponding wide lateral surface (22, 23) of the frame construction of the door leaf (5) flush in the surface and / or parallel at a distance of maximum 5 mm approximately, characterized in that the spacer installation (17) has a profiled slat installation (19) surrounding the crystals on the outer side. 2. A fire protection door leaf according to claim 1, characterized in that the door leaf frame construction (5) is formed from a sheet metal fire protection door leaf construction . 3. Fire protection door leaf according to claim 2, characterized in that the construction of fire protection door sheet of metal sheet has a box box (8) and a cover plate (9) and a padding between them, so that the box plate (8) and the cover plate (9) form or carry the respective wide 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 other glass (16) is a glass of glass not configured as a fire protection glass, in particular G-glass, floating glass, safety glass, ESG, composite glass, insulated glass, prestressed glass, ornamental glass or combinations thereof. 5. Fire protection door leaf according to one of the preceding claims, characterized in that the spacer installation (17) has a spacer strip (18) arranged between the crystals of or with a fire protection material, in particular a material that cools and / or gives moisture in case of fire. 6. Fire protection door leaf according to claim 5, characterized in that at least one visible side (29) of the distance strip (18) is optimally bonded, for example plated, coated, coated or lacquered. 7. Fire protection door leaf according to one of the preceding claims, characterized in that the profiled slat installation (19) has two arms (34, 35) to surround the outer surfaces of the two crystals spaced apart by of spacers inserted between them and because the distance between the arms essentially corresponds to the thickness (a, b, c) of the frame construction of the door leaf (5). 8. Fire protection door leaf according to claim 7, characterized in that the profiled slat installation (19) has a rib (32) that determines the distance between the arms (34, 35). 9. Fire protection door leaf according to claim 8, characterized in that the rib (32) is interrupted with through holes, in particular grooves (41). 10. Fire protection door leaf according to one of claims 8 or 9, characterized in that the rib (32) is provided at least on one side with a fire protection material that cools in case of fire and preferably it is surrounded on both sides with a fire protection material that cools in case of fire. 11. Fire protection door leaf according to one of claims 7 to 10, characterized in that the profiled slat installation (19) is constituted by several parts, preferably connected in a removable manner, in which a first part presents the first of the arms (34) and a second part presents the second of the arms (35). 12. Fire protection door leaf according to claim 11, characterized in that the first part of the profiled slat installation (19) is a Z-shaped profiled slat. 13. Fire protection door leaf according to one of claims 11 or 12, characterized in that the second part of the profiled slat installation (19) is a glass strip (26) configured essentially flat or a slat of glass retention (50) with tabs (52) that are spaced approximately vertical from a flat area of the slat that can be associated parallel to a wide side (20-23) of the door leaf. 14. Fire protection door leaf according to one of claims 11 to 13, characterized in that the parts of the profiled slat installation (19) are screwed together. 15. Fire protection door leaf according to one of the preceding claims, characterized in that the profiled slat installation (19) is formed of metal sheet. 16. Fire protection door leaf according to one of the preceding claims, characterized by a cover strip (24) and / or a cover frame (54), which cover, at least partially, the spacer installation (17) and / or a joint in the area between the glazing (7) and a wide lateral surface (22, 23) of the frame construction of the door leaf (5). 17. Fire protection door leaf according to one of the preceding claims, characterized in that the wide outer side surfaces (20, 21) of the glazing (7) extend parallel with a distance, corresponding to the thickness of a sheet metal strip acting as a glass retaining strip, inside the fire protection door leaf (3, 3a, 3b, 3c) displaced with respect to the corresponding wide outer side surfaces (22, 23) of Frame construction of the door leaf (5). 18. System for the manufacture of a fire protection door leaf (3) according to one of the preceding claims, with an assortment of door leaf frame constructions (5) of different thicknesses, one or two types of crystals of light-transparent material, at least in part in the realization of fire protection, which are made independently of the thickness of the door leaf (a, b, c) to be achieved as well as an assortment of distance installations (17), which are adapted in each case to the thickness of the frame constructions of the door leaf (5) with a profiled slat installation (19) to surround the crystals on the outer side. 19.- Fire protection door (1), which has a fire protection door leaf (3, 3a, 2b, 2c) and a fence (2), characterized in that the fire protection door leaf Fire (3, 3a, 3b, 3c) is configured according to one of claims 1 to 17, 20.- Procedure for the manufacture of fire protection door leaves (3, 3a, 3b, 3c) according with one of the preceding claims 1 to 17 in different thicknesses (a, b, c), characterized by the a) manufacture of door leaf frame constructions (5) with different thicknesses (a, b, c), b) preparation of the distance installations (17) adapted in each case to the thicknesses (a, b, c) of the door leaf frame constructions (5) with a profiled slat installation (19) to surround the crystals on the outer side, c) essentially flush insertion on the surface in each case of an equal pair of crystals (15, 16) by means of the spacer installation (17) suitable in door leaf frame constructions (5) of different thicknesses.