EP2348184B1 - Building closure element with glazing and method for producing same - Google Patents

Description

The invention relates to a building closure element designed as a fire protection closure element, in particular fire protection door leaf, with a flush-mounted glazing and a production method therefor.

From the GB 2 264 972A is a fixed glazing with glazing frame made of PVC plastic hollow sections known. In this case, a first frame is fixedly arranged in the building and a subframe, which may be glazed, is clipped into the main frame by means of a latching device projecting on one side over the main frame and on the other side over the subframe.

From the GB 2 323 116 A a holding device for a glazing unit is known, which is designed as a latching device. In this case, a first element of the latching device is provided with a Glashalteleiste to hold a front side of the glass.

A comparable construction and provided with glazing is from the WO 2009/078777 A1 known.

From the DE 203 17 163 U1 discloses a building closure element with flush-mounted glazing in fire protection training, in which a frame assembly in the form of a frame construction has a plurality of pivot bolt, which are each pivotable about a transverse to the glazing plane pivot axis. To insert a disc assembly, the pivot bars are rotated to a retracted position where they do not project inwardly out of the frame assembly. In this state, an auxiliary frame of a disc assembly is used and this locked by pivoting the individual pivot bolt. The pivot locks are to hold in the retracted position and provided in the locking position with a latching device, which releasably hold the pivot bolt itself relative to the frame assembly in which they are stored. Both the construction and the assembly process is complicated in this building closure element.

An example of a building closure element with flush glazing in fire protection training is in EP 1 586 734 A2 disclosed. The EP 1 586 734 A2 describes a fire door with a frame assembly in the form of a frame construction and a disc assembly, which is used in this frame construction. The pane arrangement has substantially the same thickness as the frame construction, so that a flush-mounted glazing is created. For this purpose, the disk assembly is formed of a plurality of glass sheets with spacers therebetween. For holding the plurality of glass panes, the outer edges thereof are surrounded by thin edge strips of retaining plates. As a result, the glass panes between the spacer and the edge strips are added. The entire construction is suitable for fire protection, ie it can withstand relevant standards of one-sided exposure to fire for a minimum period of time. Although a flush-mounted glazing can also be created for a fire protection building closure element by this construction, so there is still an attached element due to the encompassing edge strips. In addition, the support structure is relatively complicated to manufacture and assembly. The DE 203 17 163 U discloses a building closure element according to the preamble of claim 1. The object of the invention is to provide a building closure element with glazing, with a flush-mounted glazing can also be achieved in fire protection training with ease of manufacture and easy installation.

This object is achieved by a building closure element with the features of claim 1.

An advantageous manufacturing method for producing such a building closure element is the subject of the independent claim.

Advantageous embodiments of the invention are the subject of the dependent claims.

The invention provides a building closure element, designed as a fire protection closure element, with flush-mounted glazing, comprising a frame assembly and a pane arrangement to be used in the frame arrangement and a latching device for fastening the pane arrangement in the frame arrangement.

According to the invention, it is provided that the latching device is completely accommodated between at least one outer peripheral end face of the pane arrangement and one of these facing reveal side of a glazing opening in the frame arrangement.

With a latching device can be achieved on the one hand a simple attachment and a very simple installation of the disc assembly. In addition, a locking device is easy to manufacture and easy to install. In an embodiment according to the invention, the latching device can be accommodated completely concealed in the end face area between the pane arrangement and the inner reveal. As a result, encompassing retaining strips are dispensable. It can create a complete flush glazing, this type of glazing is basically suitable for fire protection structures.

In order to facilitate the assembly further, it is provided according to the invention that the latching device has a stop for limiting the latching movement after successful engagement. When mounting the disc assembly, the disc is then inserted in a glazing opening of the frame assembly until the latch engages. In this locking position, the disc assembly is held on the one hand by a catch and on the other hand by the stop in position.

The latching device according to the invention comprises a first element which is to be fastened to the disc arrangement, and a second element which is to be fastened to the frame arrangement. By locking the two elements of the latching device so the disc assembly is connected to the frame assembly. One of the two elements is a latching element with an elastically movable, biased in an engagement position engaging element. The other element of the latching device is preferably an abutment element for the latching element. The counter-bearing element has a detection element, so that the engagement element can engage in the detection element in a form-fitting manner and lock there.

In a further preferred embodiment stop areas of the stop are formed on the latching element and the counter-bearing element. As a result, the locking device is formed by a total of only two elements, so that it is easy to attach to the arrangements. A particularly simple and also suitable for fire protection construction is achieved when the elements of the latching device made of metal, in particular steel, and more particularly made of metal sheets, are made. Preferably, at least one of these metal sheets, which form elements of the latching device, is bent several times. By projecting bends of the metal sheets, for example, the stop areas can be formed. Next, the engaging z. B. form by a bent sheet metal tongue. The detection element can be formed for example by a stepped deflection of one of the metal sheets.

Basically, it is also sufficient if the disc assembly and the frame assembly are attached only to one side of a glazing border of the latching device. For example, the disc assembly and the frame assembly on the opposite side z. B. be designed interlocking by a projection-recess formation. Then, the engagement could first be made on this projection-return formation and pivoted to the disc assembly so as to engage the detent. However, especially in fire protection training is preferred to obtain the smallest possible joints. When appropriate thicker building closure elements is then to be made for mounting pivoting because of the possible tilting between the disc assembly and frame assembly difficult. It is therefore provided according to a particularly preferred embodiment that the latching device is provided on a plurality, in particular on opposite sides of a glazing border. This allows the disc assembly to be displaced approximately perpendicular to the aperture plane relative to the frame assembly until the detents engage.

In a particularly preferred embodiment, at least one of the elements of the locking device is designed as a frame or in a frame. This may be, for example, a glazing profile frame surrounding the disk assembly and connected to the disk assembly. On frame beams this glazing profile frame z. B. one or more locking tongues may be formed so that at least one locking device is provided on each of the outer end face; Preferably, several locking devices are present on each of the end faces. The second element of the latching device may be formed on a soffit profile frame, which is provided circumferentially in the inner soffit area of a glazing opening.

The arranged on the disc assembly first element of the latching device is preferably attached to the associated end face of the disc assembly. This can be done by any suitable type of attachment, in particular pouring into the disc assembly, bonding with the disc assembly or by positive engagement, for example in the manner of a tongue and groove connection.

An attachment of the second, to be arranged on the frame assembly element of the locking device can be done by any suitable means. Preferably, this element is secured to the frame assembly by a plurality of screw fasteners or the like.

The invention is particularly suitable for creating flush glazing, also in fire protection constructions.

Particularly preferably, the building closure element is designed as a door leaf. Further preferably, the door leaf is formed in fire protection construction as a door leaf of a fire door. Accordingly, in this preferred embodiment, the frame assembly is a door leaf frame or door leaf element with glazing cutout. In a glazing opening of the door leaf frame or the glazing cutout of the door leaf element, the pane arrangement can then be fastened in a latching manner by means of the latching device.

A particularly economical method of manufacturing door leaf elements in fire protection structures is the so-called box-lid construction, in which a metal sheet - usually sheet steel - is formed as a kind of box, which is closed by a second metal sheet in the form of a lid. Insulation inserts, which ensure good fire protection, are then inserted in the interior of the cavity thus formed. There are described in the art various such steel doors in fire protection construction. Most case box and cover sheet are crimped and welded at the edge areas consuming, so keep the edge areas even in case of fire. However, such a firm connection of the metal sheets at the edge regions also has disadvantages, in particular with regard to an elaborate production, as well as with regard to the formation of thermal bridges and also with respect to the so-called. Bimetallic effect: a sheet metal side is particularly strongly heated relative to the other , so this expands much more, which leads to tension and thus bending of the door leaf.

Efforts are therefore being made to further improve such fire protection structures. One approach for simpler industrial mass production is a large-area bonding between the metal sheets and the insulating insert. However, such bonding can cause problems in previously known flush-mounted glazing constructions, Since the bond usually does not last in case of fire and thus the metal sheets on the edge of the glazing does not necessarily provide a reliable support for the attachment of glass retaining elements. However, element joints such as the glazing joint between the pane arrangement and the frame arrangement are particularly critical in fire protection constructions.

It therefore lends itself to glued fire protection structures, the inventive attachment between the disc assembly and frame assembly by means of a locking device. The latching device can be formed and secured inside the reveal device and thus relatively protected and independent of the attachment of the outer sheet metal layers. The use of the locking device for fixing the disc assembly is therefore in constructions with a large-area bonding between

Metal sheets and insulation insert particularly preferred.

1. a) Befestigen eines ersten Elements der Rasteinrichtung an der Scheibenanordnung,
2. b) Befestigen eines zweiten Elements der Rasteinrichtung an der Verglasungsöffnung in der Rahmenanordnung,
3. c) Einsetzen der Scheibenanordnung in die Verglasungsöffnung und
4. d) Befestigen der Scheibenanordnung in der Verglasungsöffnung durch Einrasten der Rasteinrichtung.

According to a further aspect, the invention also provides a method for producing the previously described building closure with flush-mounted glazing, characterized by

1. a) attaching a first element of the latching device to the disk arrangement,
2. b) attaching a second element of the latching device to the glazing opening in the frame assembly,
3. c) inserting the disc assembly in the glazing opening and
4. d) attaching the disc assembly in the glazing opening by engaging the latching device.

Fig. 1

eine Draufsicht auf ein Ausführungsbeispiel eines Gebäudeabschlusselements in Form eines Türblatts in Brandschutzausbildung;

Fig. 2

einen Schnitt im Bereich einer Verglasungsfuge des Türblatts von Fig. 1 (Schnitt E-E von Fig. 1);

Fig. 3

eine Draufsicht eines ersten Elements einer in der Verglasungsfuge eingesetzten Rasteinrichtung;

Fig. 4

eine Seitenansicht auf das erste Element von links in Fig. 3 gesehen;

Fig. 5

eine Vorderansicht des ersten Elements;

Fig. 6

eine perspektivische Ansicht des ersten Elements;

Fig. 7

eine Draufsicht eines zweiten Elements der Rasteinrichtung;

Fig. 8

eine Seitenansicht des zweiten Elements von links in Fig. 7 gesehen;

Fig. 9

eine Vorderansicht des zweiten Elements;

Fig. 10

eine perspektivische Ansicht des zweiten Elements;

Fig. 11

eine perspektivische Darstellung einer Rahmenanordnung des Türblatts von Fig. 1 und eines Verglasungsprofilrahmens in Explosionsdarstellung zur Darstellung der Montage der Scheibenanordnung bei der Herstellung des Türblatts; und

Fig. 12

einen Schnitt entlang der Linie E-E- von Fig. 1, der eine Konstruktion gemäß einer weiteren Ausführungsform zeigt.

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

Fig. 1

a plan view of an embodiment of a building closure element in the form of a door panel in fire protection training;

Fig. 2

a section in the area of a glazing joint of the door leaf of Fig. 1 (Cut EE of Fig. 1 );

Fig. 3

a plan view of a first element of a locking device used in the glazing;

Fig. 4

a side view of the first element from the left in Fig. 3 seen;

Fig. 5

a front view of the first element;

Fig. 6

a perspective view of the first element;

Fig. 7

a plan view of a second element of the latching device;

Fig. 8

a side view of the second element from the left in Fig. 7 seen;

Fig. 9

a front view of the second element;

Fig. 10

a perspective view of the second element;

Fig. 11

a perspective view of a frame assembly of the door panel of Fig. 1 and an exploded view of a glazing profile frame to illustrate the assembly of the pane assembly in the manufacture of the door panel; and

Fig. 12

a section along the line EE- of Fig. 1 showing a construction according to another embodiment.

In the Fig. 1 and 2 a building closure element 10 is shown in the form of a door leaf 12 for a fire door 14 with flush glazing 15. The door leaf 12 has a frame arrangement 16 with a glazing opening 18, in which a disk assembly 20 is used in fire protection training to form the glazing 15. To secure the disc assembly 20 in the frame assembly 16, a detent 22 is provided which is received entirely within a glazing joint 24 between a peripheral face 26 of the disc assembly 20 and an inner reveal side 28 of the frame assembly 16. The disc assembly 20 and the frame assembly 16 have substantially the same thickness so that the outer sides 20a, 20b of the disc assembly 20 are substantially flush with the outer sides 16a, 16b of the frame assembly.

The frame assembly 16 is designed as a door leaf frame construction 30 in fire protection training. The frame assembly 16 has for this purpose a first metal sheet in the form of a box plate 32 made of steel and a second metal sheet in the form of a cover plate 34 made of steel and an insulating insert 36 between the two metal sheets 32, 34. The insulating insert is glued to the box panel 32 and the cover plate 34 by means of a 1-K PU adhesive 38 over the entire surface. In other, not further illustrated embodiments, other adhesives are used for bonding. Insulating insert 36 has insulating strips 40 in the edge region surrounding glazing opening 18, for example materials comprising calcium silicates. In the region of the insulating strips 40 is a support means 42, on which the fastening of the glazing takes place.

The carrier device 42 is in the in Fig. 2 illustrated embodiment formed by a T-profile 43, which is formed here simply by a multi-folded metal sheet. As a result, a T-shaped strip is formed, which passes continuously through the reveal side 28 and is welded to lateral (not shown) reinforcing profiles.

The latching device 22 has a first element 44 fastened to the disk arrangement 20 and a second element 46 fastened to the frame arrangement 16.

The two elements 44, 46 are locked together by a latching movement transversely to the opening plane of the glazing opening 18 with each other. For this purpose, the latching device 22 has a stop 52 formed between stop areas 48, 50 on the elements 44, 46 of the latching device 22 for limiting the latching movement.

The first element 44 is connected to the disc assembly 20 and is disposed on the peripheral end face 26 thereof. The disk assembly 20 is formed of a plurality of individual glass sheets 54 which are interconnected. The same bonding technique for bonding the glass sheets 54 may be used to secure the first member 44 to the disk assembly 20. Conceivable are a casting with the disc assembly 20 or a gluing or the like. In a further embodiment, not shown here, the first element 44 has a plurality of projections which positively engage the complementary joints in the disk arrangement 20 so as to hold the first element 44 to the disk arrangement.

For secure attachment, the first element 44 is part of a glazing profile frame 56 which surrounds the entire circumference of the pane arrangement 20 and is located in Fig. 11 is shown in more detail. How out Fig. 11 it can be seen, a plurality of locking devices 22 are provided per end side, so that the disc assembly 20 can be attached to each of the four peripheral end faces 26 with at least two locking devices 22.

The second element 46 is also preferably arranged on a frame, which is present circumferentially within the reveal of the glazing opening 18 and is referred to below as a soffit profile frame 58. In the illustrated embodiments, each support means 42 is present on each reveal side 28 and each forms a frame spar of the soffit profile frame 58. At each of these support means 42 are, as best of Fig. 11 can be seen, at least two second elements 46 for forming the plurality of locking devices 22 are provided. Each second element 46 is screwed by a plurality Schraubbefestiger 60, here in the form of tapping screws to the support means 42.

In the illustrated examples, the first element 44 is designed as a latching element 62 which has an elastically biased engagement element 64. The second element 46 is designed as an abutment element 66 with a sensing element 68 which engages the engagement element 64 in a latching manner.

The more detailed structure of the latching element 62 will be described below with reference to the illustrations in FIGS Fig. 3 to 6 explained in more detail.

The latching element 62 forming the first element 44 is formed from a multiply bent metal sheet 70, in particular sheet steel, and has an unlatched and bent sheet metal tongue 72 as the engagement element 64. The sheet tongue 72 is surrounded by a flat plate portion 73 of the metal sheet 70. Subsequently, the plate region 73, the metal plate 70 is bent up projecting on the same side as the metal tongue 72, so that a step edge 74 is formed, which forms the abutment portion 48 of the first member 44. The metal tongue 72 is bent out in such an aligned manner that a free end thereof is directed towards the step flank 74. On the side facing away from the metal tongue 72 side of the step edge 74 connects to the step edge 74 a run-on slope 76, which opens into a flush with the plate portion 73 parallel edge strip 78.

The construction of the second element 46 will be described below with reference to the illustrations in FIGS Fig. 7 to 10 explained in more detail. The abutment element 66, which forms the second element 46, is formed by a metal sheet 80, which is likewise bent several times and which is provided with a crank 84 for forming a step 82. A step flank 88 formed by the offset 84 serves as a detection element 68, which can be engaged behind by the sheet metal tongue 72. A first edge region 90 adjoining the crank 84 is provided with openings 92 for receiving the screw fasteners 60. The openings 92 are elongated, so as to make a position adjustment of the second element 46 can. An adjoining the crank 84 on the other side second edge region 94 is in its intended use projecting into the Glazing opening 18 in front and is in in Fig. 2 shown locking state between the metal tongue 72 and the stepped edge 74 added. The free edge 96 of the second edge region 94 forms the stop region 50 of the second element 46 of the latching device 22.

During production, the procedure is such that the glazing opening 18 is cut out of a full-surface door leaf in a box-lid construction. The soffit area is then provided with the insulating strip 40. The support means 42 is welded with the reinforcing profiles and reinforcement beams in the glazing opening in the soffit area. The second element 46 is screwed to the support profile 42 with the screw fasteners 60. This results in the door leaf frame construction 100 with the glazing opening 18 and a plurality of second elements 46, as shown in FIG Fig. 11 is shown.

The disk arrangement 20 is supplied, for example, with the first elements 44 fastened in the manufacturing plant for the disk arrangement 20. In Fig. 11 For this purpose, only the glazing profile frame 56 accommodating the pane arrangement 20 with the first elements 44 formed integrally thereon is shown without the glass panes 54. When the disk assembly 20 is mounted in the glazing profile frame 56, the disk assembly 20 of the illustrated mounting direction 102 is inserted perpendicular to the opening plane into the glazing port 18 until the metal tongue 72 slides over the protrusion formed by the second edge region 94 and locks behind the step flank 88, wherein the edge 96 abuts the step flank 74 of the first element 44.

The glazing joints 24 may be provided with strips of intumescent material as needed. These strips of intumescent material (not shown) can be provided beforehand, in particular in a groove in a region between the T-profile 43 and the box plate 32 or the cover plate 34. The remaining area of the glazing joint 24 is potted from both sides with a sealing material (not shown) such as silicone.

In Fig. 12 is still a modified Auführungsform a glazed fire door panel 12 in a representation similar to the representation in Fig. 2 shown. This embodiment corresponds to the formation of the support means 42 of the previously with reference to the Fig. 2 illustrated embodiment. Corresponding parts are provided with corresponding reference numerals.

In the second embodiment, the support means 42 has two angle sections 104 and 106. A first angle section 104 is fixed with a leg 104 a to the box panel 32 and a second angle section 106 is attached to a leg 106 a on the cover plate 34. The remaining legs 104b, 106b of the two angle sections 104, 106 overlap one another and thus reinforce the reveal area of the glazing opening 18. Between these legs 104b, 106b, which run perpendicular to the opening plane, an insulation strip 108 made of fire protection material is inserted; including several layers of insulating strips 40 are provided. The screw fasteners 60 pass through both overlapping legs 104b, 106b. Otherwise, the structure of the second embodiment is the same as that of the first embodiment.

LIST OF REFERENCE NUMBERS

10

Building closure element

12

door leaf

14

Fire door

15

glazing

16

frame assembly

16a

outside

16b

outside

18

glazing opening

20

disk assembly

20a

outside

20b

outside

22

locking device

24

Verglasungsfuge

26

Extensive front end

28

Laibungsseite

30

Door leaf frame construction

32

box sheet

34

cover sheet

36

insulation insert

38

1-K-P U adhesive

40

insulating

42

support means

43

T profile

44

first element of the latching device

46

second element of the latching device

48

stop area

50

stop area

52

attack

54

glass panes

56

Glazing profile frame

58

Laibungsprofilrahmen

60

threaded fasteners

62

locking element

64

engaging

66

Abutment member

68

sensing element

70

Sheet metal (locking element)

72

sheet metal tongue

73

plate area

74

step flank

76

starting slope

78

edge strips

80

Sheet metal (counter bearing element)

82

step

84

cranking

88

step flank

90

first edge area

92

opening

94

second border area

96

edge

100

Door leaf frame construction

102

mounting direction

104

first angle profile

104a

leg

104b

leg

106

second angle profile

106a

leg

106b

leg

108

insulating strips

Claims (13)

1. Building closure element (10) constructed as a fire protection closure element having a flush-mounted glazing (15), comprising a frame assembly (16) and a pane assembly (20) to be inserted into said frame assembly (16), and a locking device (22) for fixing said pane assembly (20) within said frame assembly (16), wherein said locking device (22) is entirely received between at least one outer peripheral front face (26) of said pane assembly (20) and a jamb front face (28) of a glazing opening (18) in said frame assembly, and
   wherein said locking device (22) has a stopper (50) for limiting a locking movement after the locking is complete,
   characterized in
   that said locking device (22) includes a locking element (62) to be fixed to said frame assembly (16) or said pane assembly (20) and having an elastically movable engagement element (64) preloaded in an engagement position and an abutment element (66) to be fixed to the respective other assembly (20, 16), and a capture element (68) receiving said engagement element (64) in a form-locking manner.
2. Building closure element (10) according to claim 1,
   characterized in that said stopper (50) is formed by mutually abutting stopper portions (48, 50) on said locking element (62) and said abutment element (66).
3. Building closure element (10) according to one of the claims 1 or 2,
   characterized in that said locking element (62) and said abutment element (66) are formed of metal sheets (70, 80), in particular metal sheets bent multiple times.
4. Building closure element (10) according to claim 2 and claim 3,
   characterized in that said abutment portions (48, 50) are formed by protruding bulges of said metal sheets (70, 80).
5. Building closure element (10) according to one of the claims 3 or 4,
   characterized in that said engagement element (64) is a bent-out metal tongue (72) in or on said metal sheet (70) of said locking element (62) and that said capture element (68) is a step (82) in said metal sheet (80) of said abutment element (66).
6. Building closure element (10) according to one of the preceding claims,
   characterized in that a first element (44) of said locking device (22) to be disposed on said pane assembly (10) is formed on a glazing profile frame (56) surrounding said pane assembly (20) on the outer front face periphery thereof and/or that a second element (46) of said locking device (22) to be arranged on said frame assembly (16) is formed on or fixed to a jamb profile frame (58) fixed to the inner sides of a glazing opening (18) receiving said pane assembly (20).
7. Building closure element (10) according to one of the preceding claims,
   characterized in that an element (44) of said locking device (22) to be disposed on said pane assembly (20) is fixed to at least one front face (20) of said pane assembly (20), particularly by casting, bonding and/or by a form-locking engagement.
8. Building closure element (10) according to one of the preceding claims,
   characterized in that an element (46) of said locking device to be disposed on the frame assembly (16) is fixed to said frame assembly (16) by a plurality of screw or rivet fasteners (60).
9. Building closure element (10) according to one of the preceding claims,
   characterized in that outer sides (20a, 20b) of said pane assembly (20) are substantially flush-mpunted with the outer sides (16a, 16b) of the frame assembly (16).
10. Building closure element (10) according to one of the preceding claims,
    characterized by said building closure element being formed as a door leaf (12), in particular a fire door (14), wherein said frame assembly (16) is a door leaf frame or a door leaf member (100) having a glazing recess in which said pane assembly (20) is retained in a locking manner by said locking device (22).
11. Building closure element (10) according to claim 10,
    characterized in that said door leaf member (100) is particularly formed from metal sheets in a box and lid construction with two metal sheets (32, 34) forming the outer sides (16a, 16b) and with an insulation liner (36) interposed there between.
12. Building closure element (10) according to claim 11,
    characterized in that said insulation liner (36) is connected to said metal sheets (32, 34) by an extensive adhesive bonding.
13. Method for producing said building closure element (10) according to one of the preceding claims, characterized by

    a) fixing a first element (44) of said locking means (22) to said pane assembly (20),

    b) fixing a second element (46) of said locking means (22) to said glazing opening (18) in said frame assembly (16),

    c) inserting said pane assembly (20) into said glazing opening (18) and

    d) fixing said pane assembly (20) in said glazing opening (18) by locking said locking device (22).

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