EP1657397B1 - Glazed doorleaf and glazed door with such a doorleaf - Google Patents

Abstract

The leaf has frames that are made from bars (16, 17) on a basis of wood materials. Glass panels (20, 21) are accommodated in the frames. A number of door belts are arranged at the door leaf frames for introducing weight forces of the door leaf into a sash (10). The frame bars are attached to the glass panels in such a manner that the glass panels serves as load bearing units. Independent claims are also included for the following: (A) a glass frame door having a door leaf (B) a method of manufacturing a glass frame door and/or a glass frame door leaf.

Description

The invention relates to a glass frame door leaf according to the preamble of the appended claim 1 and provided therewith a glass frame door, as they are known from EP 0 803 634 A2 are known.

From the DE 195 15 518 A1 is known a door made of self-supporting structural glass, which contains a lateral sash made of a material other than glass. The sash is glued to the edge portion of at least one side of the glass sheet. To form the door as a fire door, the sash is made of metal.

In the DE 19 00 986 A1 For the production of a glass filling for door and window openings, it is proposed to fasten a casing of machinable material to the edges of a hard glass pane, which is then fitted to a frame which accommodates the glass filling.

The EP 0 803 634 A2 describes a glass door for fire protection purposes, which has a wooden door leaf frame. This door leaf frame has a support structure by means of which the weight of the fire protection pane can be introduced via the door hinges in a frame formed from wood. In this known support structure of the door leaf frame has a larger-sized upper and a larger-sized lower frame spar, which act as a supporting profiles two frame beams. The weight of the disc is introduced via these two support profiles in the frame. This is to create a glass door with a particularly high glass content. Now, however, the two support profiles are forcibly solid perform, so that in the upper and lower part of the door an undesirably high proportion of wood is visible.

Based on the state of the art according to the EP 0 803 634 A2 It is therefore an object of the invention to provide a glass frame door leaf of the type mentioned in the preamble of claim 1 and provided therewith a glass frame door, wherein the glass content is further increased.

This object is achieved with a glass frame door leaf with the features of the attached claim 1 or with a glass frame door provided therewith according to claims 20.

In the prior art according to the EP 0 803 634 A2 it is considered that the glass pane designed as a fire-resistant pane is particularly sensitive,

so that the support structure proposed there with upper and lower support profiles is necessary.

The present invention takes the opposite route. According to the invention, the frame spars are firmly connected to the glass pane so that the glass pane itself serves as a load-bearing element. Experiments have shown that this works surprisingly well with functional disks such as fire protection.

Due to the fact that the glass pane is also used as a load-bearing element, one can - but need not - also form the upper and lower frame profiles with much smaller widths. As a result, it is possible to further increase the proportion of glass on the viewing sides of the doors, and this even if the frame of the frame and door leaf are formed essentially or exclusively of wood-based materials.

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

With the formation of the invention can even do without a lower frame member to increase the glass content on.

The door leaf frame is firmly glued to the glass so that a connection is created along the entire length of the glass pane edge. Bending loads on the disc are thus absorbed by the frame spars. The functional disks are thus hardly loaded in a direction transverse to the disk plane. And against forces in the direction of the disc level also available on the market fire protection windows are sufficiently rigid.

In order to further increase the stiffness of the glass pane, a glass pane is used, which is formed from a plurality of individual panes, which are preferably made of tempered glass and / or toughened safety glass (ESG). are formed and fixed by means of spacers firmly to each other. The cavity formed between them is filled with fire protection gel.

In order to allow a subsequent insertion of the glass sheets after connecting the frame beams to the door leaf frame and thus after the construction of the door leaf frame, it is further preferred that all or some or at least one of the frame spars an L-profile with a web and a leg projecting therefrom exhibit. In the cavity formed between the web and the leg, the glass pane can then be taken up and then fixed with a arranged on the opposite end of the leg of the L-profile glass bar. With this design, the frame spars are sufficiently rigid even at low view widths due to the profile shape. Nevertheless, the glass pane can be replaced later even with a built-in door leaf.

For optical reasons, the glass strip is preferably adapted in shape and dimensions to the leg, so that the glass frame provided with frame rail has a total of a U-profile shape. With a correspondingly firm connection of the glass strip with the L-profile-shaped frame spar, this also a stiffening of the frame Holmes is achieved.

Due to the construction according to the invention, the door hinge also does not have to be fastened to one of the horizontal frame spars, but can also act on the vertical frame spars. For this purpose, the door leaf-side hinge flap of each door leaf is preferably attached to the web of the vertical frame Holmes on its side facing away from the glass with a band fastening device. The band fastening device is preferably formed by a plurality of threaded sleeves, which are hammered into openings by clamping. The openings extend in the thickness direction through the frame spar. The threaded sleeves are preferably hammered from the glass pane side facing and serve as an abutment for screws with which the door leaf side hinge tab of the Glass pane opposite side are attached from. The attachment of the door leaf side hinge flap is preferably carried out in a matched to the hinge flap recess which is milled, for example, from the wood of the frame spar. The hinge flap is then preferably flush with the glass pane opposite side in this recess.

For particularly large door heights in connection with particularly narrow frame beams, it may be advantageous in some functions, especially in fire doors to increase the stability, optionally introduce reinforcing strips made of rigid material in the respective frame spars. These are preferably metal strips or strips of other suitable material, such as fiber-reinforced strips. Preferably, the strips are profiled for further stiffening, for example as a U-profile, L-profile or T-profile. Such a strip may be attached to the glass pane facing side of the frame Holmes. Alternatively or in addition to this, a strip can optionally also be fastened to the edge of the pane. The latter preferably has a U-profile for embracing the disc edge.

The glass frame door leaf is preferably used in a glass frame door whose frame is formed of Zargenholmen, which are also constructed on the basis of wood materials. Preferably, the spars of the frame and the door leaf frame made of the same material. This results in a similar look for frame and door leaf frame. As materials for both solid wood or laminated woods are preferably used. Also possible are galvanized woods. The spars of the frame are preferably also profiled and designed so that they completely cover the frame struts of the door leaf frame in the firing state of the door on the opposite hinge side. This gives on the opposite band side of the door leaf a view without joints. For this purpose, the spars of the frame are preferably also formed as L-shaped profiles. With the leg, the just mentioned cover function is achieved.

To reduce joints that are visible in the closed state, the glazing bead can be arranged on the hinge opposite side of the door leaf. There she is from the Frame covered. On the hinge side, there is only a single visible gap.

On the spars of frame or door leaf frame can further be attached on both sides or on one side a fire protection with a foaming in case of fire material. So that this does not disturb the appearance of the door, preferably also a cover layer is attached to the intumescent material, which corresponds to the appearance of the wood surface of the corresponding spar. Zargenseitig the door hinge is preferably received in a tape receiving pocket, which is attached to the thigh-free end of the L-profile of the vertical band-side Zargenstabes on the hinge side.

The glass frame door can be constructed as single-leaf as well as multi-leaf. In a two-leaf door, both the inactive leaf and the active leaf are preferably formed from a corresponding glass frame door leaf.

Particularly preferred is an embodiment in which the glass pane has a plurality of individual panes of laminated safety glass. The laminated safety glass consists - it is already clear from the term - of several interconnected discs. Usually, these discs are bonded together by an adhesive or a double-sided adhesive film. These interconnected panes provide a high strength, so that even from individual panes, which in turn is formed of laminated safety glass, trained fire safety screen can absorb high lateral forces and can fulfill special good carrying functions.

It is preferred that the highest possible proportion of glass is visible for the door leaf. In this respect, the lower door leaf frame spar can be completely omitted. The two horizontal Türblattrahmenblattholme can be made very narrow. This is because they do not contribute to the support function, as the weight of the disc is transmitted directly to the side frame spars. However, if desired for design reasons or due to fitting into special premises, of course this horizontal door leaf frame rail also made thicker. In such a case, the thicker version is available primarily for optical reasons, a change in the functions of the individual frame members does not result. That is, weight of the disc is also introduced in these embodiments directly from the disc in the side frame spar; the horizontal door leaf frame spars, in particular the lower horizontal Türblattrahmenholm is preferably not burdened in its thicker version by the weight of the disc.

Fig. 1

eine Ansicht von der Bandseite aus auf eine erste Ausführungsform einer zweiflügeligen Glasrahmentür;

Fig. 2

eine Ansicht der Ausführungsform von Fig. 1 von der Bandgegenseite aus;

Fig. 3

eine Ansicht auf eine zweite Ausführungsform einer zweiflügeligen Glasrahmentür von der Bandseite aus;

Fig. 4

eine Ansicht der zweiten Ausführungsform der Glasrahmentür, jedoch von der Bandgegenseite aus;

Fig. 5

eine Ansicht einer dritten Ausführungsform einer Glasrahmentür in einflügeliger Ausführung von der Bandseite aus;

Fig. 6

die dritte Ausführungsform der Glasrahmentür von der Bandgegenseite aus;

Fig. 7

eine Ansicht einer vierten Ausführungsform einer Glasrahmentür in einflügeliger Ausführung von der Bandseite aus;

Fig. 8

die Tür von Fig. 7 von der Bandgegenseite aus gesehen;

Fig. 9

einen Vertikalschnitt durch ein Türblatt einer der Türen von Fig. 1, Fig. 2, Fig. 5 oder Fig. 6 in einer Ausführungsform der nicht unter die beigefügte Ansprüche fällt;

Fig. 10

einen Vertikalschnitt durch ein Türblatt einer der Türen von Fig. 1, Fig. 2, Fig. 5 und Fig. 6 in einer weiteren Ausführungsform der nicht unter die beigefügte Ansprüche fällt;

Fig. 11

einen Vertikalschnitt durch ein Türblatt einer der Türen von Fig. 3, Fig. 4, Fig. 7 oder Fig. 8 in einer Ausführungsform der nicht unter die beigefügte Ansprüche fällt;

Fig. 12

einen Vertikalschnitt durch eine Tür gemäß Fig. 3, Fig. 4, Fig. 7 oder Fig. 8 in einer weiteren Ausführungsform der nicht unter die beigefügte Ansprüche fällt;

Fig. 13

einen Horizontalschnitt durch die zweiflügeligen Türen gemäß Fig. 1 - Fig. 4 der nicht unter die beigefügte Ansprüche fällt;

Fig. 14

einen Horizontalschnitt durch die einflügeligen Türen gemäß Fig. 5 - Fig. 8 der nicht unter die beigefügte Ansprüche fällt;

Fig. 15

einen Horizontalschnitt durch einen Teilbereich der Türen gemäß Fig. 1 - Fig. 8 im Bereich eines der Türbänder der nicht unter die beigefügte Ansprüche fällt;

Fig. 16

eine Ansicht von der Bandseite auf eine fünfte Ausführungsform einer zweiflügeligen Glasrahmentür;

Fig. 17

eine Ansicht der Ausführungsform von Fig. 16 von der Bandgegenseite aus;

Fig. 18

eine Ansicht auf eine sechste Ausführungsform einer zweiflügeligen Glasrahmentür von der Bandseite aus;

Fig. 19

eine Ansicht der sechsten Ausführungsform der Glasrahmentür, jedoch von der Bandgegenseite aus;

Fig. 20

eine Ansicht einer siebten Ausführungsform einer Glasrahmentür in einflügeliger Ausführung von der Bandseite aus;

Fig. 21

die siebte Ausführungsform der Glasrahmentür von der Bandgegenseite aus;

Fig. 22

eine Ansicht einer achten Ausführungsform einer Glasrahmentür in einflügeliger Ausführung von der Bandseite aus; und

Fig. 23

die achte Ausführungsform der Glasrahmentür von der Bandgegenseite aus.

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

Fig. 1

a view from the hinge side of a first embodiment of a two-leaf glass frame door;

Fig. 2

a view of the embodiment of Fig. 1 from the tape opposite side;

Fig. 3

a view of a second embodiment of a two-leaf glass frame door from the hinge side;

Fig. 4

a view of the second embodiment of the glass frame door, but from the tape opposite side of;

Fig. 5

a view of a third embodiment of a glass frame door in a single-wing design of the band side;

Fig. 6

the third embodiment of the glass frame door from the tape opposite side;

Fig. 7

a view of a fourth embodiment of a glass frame door in a single-wing design of the band side;

Fig. 8

the door of Fig. 7 seen from the tape opposite side;

Fig. 9

a vertical section through a door leaf of one of the doors of Fig. 1, Fig. 2 . Fig. 5 or Fig. 6 in an embodiment not falling under the appended claims;

Fig. 10

a vertical section through a door leaf of one of the doors of Fig. 1, Fig. 2 . Fig. 5 and Fig. 6 in a further embodiment not falling under the appended claims;

Fig. 11

a vertical section through a door leaf of one of the doors of Fig. 3, Fig. 4 . Fig. 7 or Fig. 8 in an embodiment not falling under the appended claims;

Fig. 12

a vertical section through a door according to Fig. 3, Fig. 4 . Fig. 7 or Fig. 8 in a further embodiment not falling under the appended claims;

Fig. 13

a horizontal section through the two-leaf doors according to Fig. 1 - Fig. 4 not covered by the attached claims;

Fig. 14

a horizontal section through the single-leaf doors according to Fig. 5-8 not covered by the attached claims;

Fig. 15

a horizontal section through a portion of the doors according to Fig. 1 - Fig. 8 in the area of one of the hinges not covered by the attached claims;

Fig. 16

a view from the hinge side to a fifth embodiment of a two-leaf glass frame door;

Fig. 17

a view of the embodiment of Fig. 16 from the tape opposite side;

Fig. 18

a view of a sixth embodiment of a double-winged glass frame door from the hinge side;

Fig. 19

a view of the sixth embodiment of the glass frame door, but from the tape opposite side of;

Fig. 20

a view of a seventh embodiment of a glass frame door in a single-wing design of the band side;

Fig. 21

the seventh embodiment of the glass frame door from the tape opposite side;

Fig. 22

a view of an eighth embodiment of a glass frame door in a single-wing design from the hinge side; and

Fig. 23

the eighth embodiment of the glass frame door from the hinge opposite side.

In the Fig. 1 - 8 and FIGS. 16-23 show a total of eight embodiments of glass framed doors 1-4, 101-104 respectively viewed from the hinge side and viewed from the hinge opposite side.

In the Fig. 1 and 2 and FIGS. 16 and 17 show a first and a fifth embodiment of a glass frame door 1, 101 in a double-leaf design with a fixed leaf 5 and a moving leaf 6. The door leaves 7, of which passive leaf 5 and active leaf 6 are formed, have a four-sided door leaf frame 8.

At the in 3 and 4 shown second embodiment of a glass frame door 2 and in the in the FIGS. 18 and 19 illustrated sixth embodiment of a glass frame door 102 is also a double-leaf version with fixed leaf 5 and the active leaf 6 to see, with their door leaves 7, however, have a three-sided door leaf frame 9.

One in the FIGS. 5 and 6 shown third embodiment of a glass frame door 3 and a in the FIGS. 20 and 21 shown seventh embodiment of a glass frame door 103 is formed single-leaf with only one door leaf 7, said door leaf 7 has the four-sided door leaf frame 8.

And a fourth embodiment of a glass frame door 4 in a single-wing design, wherein the door panel 7 has the three-sided door leaf frame 9, is in the FIGS. 7 and 8 shown. The Fig. 23 and FIG. 24 show an eighth embodiment of a glass frame door 108, which is a modification of the fourth embodiment 4 and is also formed as a single wing with a three-sided door leaf frame 9.

All doors 1 - 4, 101 - 104 have a frame 10, each having a first vertical Zargenstab 11 and a second vertical Zargenstab 12 and a horizontal Zargenstab 13.

The door leaf frames 8, 9 each have a first vertical frame rail 14, a second vertical frame rail 15 and an upper horizontal frame rail 16. The four-sided door leaf frame 8 additionally has a lower horizontal frame member 17.

All Zargenstäbe 11 - 13 and frame members 14 - 17 are constructed of wood materials. Solid wood or laminated wood or finger-jointed wood is used.

The door leaves 7 are each secured by at least two or more hinges 18, which engage at any point along one of the vertical frame members 14 on the frame 10.

The door leaf frame 8, 9 of a fire door according to the invention each comprises a glass pane 20. In a preferred embodiment, the glass frame door 1 - 4 is designed as a T30 fire door that holds a fire exposure from one side for at least 30 minutes. For this purpose, the glass sheet 20, as can be seen in particular from the sectional views of Fig. 9-15 results, designed as a multi-layer firewall 21. For this purpose, in the embodiments shown fire protection discs are selected, which are characterized by particular rigidity and insensitivity to loads. An example of this is a fire protection pane, which is offered under the brand name "Contraflam" by the company Vetrotech Saint-Gobain Germany GmbH. In such fire-resistant glasses, the individual disks are hardened, for example formed as a single-pane safety glass, and via spacers - not shown - from the outside invisible fixed together. In the illustrated cavities then fire protection gel is filled. The spacer in the discs used may but need not be present. Another useful fireproof pane has different thicknesses of glass, with a thicker, optionally hardened inner pane surrounded by thinner outer panes. Generally, in the exemplary embodiments shown, disks are used whose maximum permissible bending stress is at least 45 N / mm ² .

The in the FIGS. 9 to 15 The subject matter shown is not covered by the appended claims. It is in these embodiments, a prior art that facilitates the understanding of the invention.

As can be seen from the vertical sections according to the Fig. 9 to 15 results, the Zargenstäbe 11-13 are each L-shaped profile with a web 24 and a protruding at one end thereof leg 25 is formed. In the spanned by the web 24 and the legs 25 cavity then a frame spar 14 - 16 of the door leaf frame 8, 9 is then completely received. More precisely, in the first to fourth embodiment, all frame beams 14 to 16 associated with the frame bars 11 - 13 are completely accommodated, also the respective upper frame rail 16. Of course, this does not apply to the second vertical frame rails 15 of the two-leaf glass frame doors 1 facing the other wing , 2 and 101, 102. The fifth to eighth embodiments each show a modification of the first to fourth embodiments in that the horizontal frame spars 16 and 17 of the door leaf frame 8, 9 are made thicker for purely optical reasons. A change in the function of the horizontal frame spars 16, 17 of the fifth in the eighth embodiment does not arise compared with the function of these frame spars 16, 17 in the first to fourth embodiments.

The frame members 14-17 of the door leaf frame 8, 9 are L-shaped profile with a web 26 and a leg 27 formed. Exemplary dimensions are a total width D _{z2 of} the Zargenstabs of about 64 mm and a thickness D _Z1 of Sides-web of about 30 mm, an overall width B _T3 of about 30 mm for the frame beams 14 to 17 with width B 27 _(T1 and _T2 B, each about 15 mm for the frame bridge 26 and the frame-leg please refer Fig. 10 ). These values may differ by ± 5 mm.

On the opposite sides of the webs 24, 26 of the frame 10 and door leaf frame 8, 9 optional fire protection strips 30 are flush-mounted in a corresponding recess. Each of the fire protection liners 30 has a lower layer 31 of intumescent material which intumesces in case of fire, and a cover layer 32 which is identical to the wood of the frame 10 and the door leaf frame 8, 9.

The following will now be based on the representation according to Fig. 9 - 14 the structure of the glass frame door leaf 7 explained in more detail. In the cavity defined by the web 26 and the legs 27, the edge region of the glass pane 20 is inserted and held on behind blockings 33 - this are, for example, small wooden blocks - at an appropriate distance from the individual frame beams 14 - 17. At the free end of the web 26, a glass strip 34 is attached. The attachment of the glazing bead 34 is made by concealed nailing, by screwing or by gluing. The glazing bead 34 preferably has the same dimensions as the limb 27 in terms of thickness and width, so that the combination of glazing bead 34 and frame struts 14 - 17 forms a U-profile of wood-based material which surrounds the edge region of the glass pane 20.

In the entire encompassing region and on the entire length of the glass pane edge, a sealing material 36 with adhesive function or an adhesive is inserted between the glass pane 20 and the combination of frame members 14-17 and glazing bead 34. As a result, the glass pane edge is extensively and firmly connected to the U-profile of the door leaf frame 8, 9. In most cases and most sizes, this connection is sufficient for stiffening the door leaf 7 during the entire operation of the door 1 - 4, 101 - 104. For particularly high and wide doors metal reinforcement strips 38, 40 may optionally be provided. A first metal strip 38 is formed in the illustrated embodiments as a T-profile-shaped strip, which is inserted into corresponding recesses on the frame rail 14-17. Additionally or alternatively, also a second metal strip 40 in the form of a U-profile can be provided encompassing the edge of the glass pane 20.

In Fig. 10 an embodiment of the four-sided door leaf frame 9 is shown, in which the lower horizontal frame member 17 is provided in smoke protection and / or sound insulation design with a bottom seal 42. In this case, the lower horizontal frame member 17 is made slightly wider and in the example approximately of its width comparable to the width of the respective Zargenstabes 11 - 13. This embodiment is not covered by the appended claims.

In Fig. 11 a smoke protection and / or soundproofing is shown in the three-sided door leaf frame 9. In this case, an S-shaped metal profile 44 is attached to the lower glass pane edge, so that the bottom seal 42 can also be used in the three-sided door leaf frame 9. This embodiment is not covered by the appended claims.

Fig. 12 shows the three-sided door leaf frame 9 with an optional simple conclusion by means of a metal U-profile 45 to protect the lower edge of the glass. This embodiment is not covered by the appended claims.

Fig. 13 shows a horizontal section through the two double-leaf glass frame doors 1, 2. This embodiment does not fall under the appended claims. Deviating from the illustration in Fig. 13 In the door gap between the inactive leaf 5 and the moving leaf 6, the combinations of fire protection liners 30 shown on the strip-side vertical edges can likewise be present. The fire protection strip 30 may be present on one side or on both sides. In the inactive leaf 5 is still a drive bolt guide 46 is shown. In the aisle 6 dashed a lock pocket 48 is shown. The lock pocket 48 is formed by a on the vertical frame rail 14 on the glass pane 20 facing side mounted lock housing made of wood-based material. During production, the procedure is such that the frame spar and the lock housing are first glued together from solid solid wood and then a lock pocket is milled from the narrow side.

Due to the attachment of the door leaf frame 8, 9 by means of gluing with the glass pane edge, the L-profile-shaped frame members contribute to a stiffening against transverse forces acting on the glass pane. The weight forces acting in the vertical direction and thus in the direction of the plane of the glass pane 20 can also be absorbed by the glass pane and transmitted to it by the large-area and encompassing connection with the door leaf frame. In this way, you can form the door leaf frame overall very narrow. The door leaf frame can thus - but not necessarily - less than 40 mm wide - measured along the door level - are formed. For example, the width B _{T2 of} the leg 27 is less than about 30 mm. For example, in one embodiment, the width B _T2 leg 27 is only about 15 mm (± 10%). The thickness B _{T1 of} the web 25 can also be made very narrow, for example less than about 30 mm. In one embodiment, the thickness B _{T1 is} approximately equal to the width B _{T2 of} the leg 27. For example, in one embodiment, the thickness B _{T1 of the} fin 25 is only about 15 mm (± 10%). In the mentioned embodiment, this would result in a visible width B _T3 of only about 30 mm. Deviations from the values given here purely by way of example are of course possible.

The above also applies to the fifth to eighth embodiments, in which the two vertical frame beams 14 and 15 are made the same as in the first and fourth embodiments. In this fifth to eighth embodiment, a larger frieze width, ie a larger frame width by enlarging the thickness of the web of the L-shaped frame members is provided only for optical reasons.

Such low frame thicknesses are achieved in particular by the following procedure in the production of the glass frame door leaves:

The formation of the frame spars and bonding to the glass pane is such that in practice in bending the glass frame door leaf with inserted and connected disc, the maximum bending stress (Tensile strength) in the glass sheet is at most 30 N / mm ² , preferably at most 18 N / mm ^2, and most preferably at most 10 N / mm ² . It can then be used glass sheets with a maximum bending stress or tensile strength of 45 N / mm ² . For this purpose, the glass frame door leaf is bent out with a defined force and the deflection measured on the glass. The bending stress in the disk can then be calculated by means of characteristic values of the disks used in each case. Without existing characteristic values, the calculation is carried out according to the finite element method. If the maximum flexural strength value determined in this way is above the stated values or, for more specific disks that withstand greater mechanical stresses, above approximately 2/3 to 4/5 of the maximum permissible bending stress, then the wooden frame construction becomes thicker frame materials or optionally reinforcing strips or a stronger one and / or larger area bonding reinforced. If the determined maximum flexural stress value is well below the above values, for example, less than about 1/5 or% of the maximum fracture stress, then the frame spar may be made slimmer to obtain a larger visible glass surface. Special tempered glasses, such as TVG, ESG or VSG are suitable for much higher maximum bending stresses or tensile strengths. If a special disc, such as a fire protection disk or with such glasses formed, can be realized using the carrying capacity of the glass narrower frame spars.

In the design and construction of the glass frame door leaves described herein, the maximum thickness of the wood frame spars is adjusted to the maximum bending stress of the disk used and thus minimized. Experiments have shown that an astonishingly low frame beam thickness can be provided here with a multiplicity of usable different panes, and this is also the case when a fire protection or smoke protection function is implemented.

In Fig. 15 is still the attachment of the door hinge 18 between the door panel 7 and the frame 10 shown. A belt fastener 50 for securing a door leaf side strap tab 52 has a plurality of threaded sockets 53, which are driven into holes made smaller across the bridge 26, so that they claw into the wood with a corrugated or ribbed outer surface. In this threaded sleeves 24 short-dimensioned countersunk screws 56 are screwed in accordance with the small thickness of the web, which fasten the door leaf-side hinge tabs 52 flush in a corresponding cutout on the glass pane opposite side of the vertical frame spar 14, 15.

On the frame 10, a band receiving pocket 54 is received at the free end of the web 24 in a mating cutout, in which the frame-side hinge tab 55 is attached. Here, a large part of the thickness of the likewise narrow trained as the frame-side web 24 is occupied by the tape receiving pocket 54.

The thickness D _{Z1 of} the frame-side web 24 corresponds in the exemplary embodiment shown approximately to the visible width B _{T3 of} the door leaf frame 8. In particular, the frame-side leg 25 is dimensioned so wide that it covers the entire door leaf frame 8 with the glass frame door 1-4 closed. Exemplary values for the thickness D _{Z1 of} the web 24 and the total thickness D _{Z2 of} the Zargenstabes 11-13 are in ranges between about 50 to 100 mm.

LIST OF REFERENCE NUMBERS

1

Glass frame door

2

Glass frame door

3

Glass frame door

4

Glass frame door

5

Fixed leaf

6

leaf

7

door leaf

8th

four-sided door leaf frame

9

three-sided door leaf frame

10

frame

11

first vertical frame rod

12

second vertical Zargenstab

13

horizontal frame rod

14

first vertical frame spar

15

second vertical frame spar

16

Upper horizontal frame spar

17

lower horizontal frame spar

18

door hinges

20

pane

21

Fireproof panel

22

Single discs

24

Bridge (frame)

25

Thigh (frame)

26

Bridge (door leaf)

27

Leg (door leaf)

30

Brandschutzeinleimer

31

Brandaufschäumer

32

topcoat

33

Hinterklotzungen

34

glazing bead

36

Seal material with adhesive function or adhesive

38

metal bar

40

U-profile

42

floor seal

44

S-shaped metal profile

45

U-profile

46

Shoot bolt guide

48

mortice

50

Belt attachment means

52

Door leaf side hinge flap

53

threaded socket

54

Band receiving pocket

55

frame-side hinge flap

56

countersunk

101

Glass frame door

102

Glass frame door

103

Glass frame door

104

Glass frame door

Claims (29)

1. Framed glass door leaf (7) for a fire door (1-4, 101-104), having a door leaf frame (8,9) made of frame capping beams (14-17) based on wooden material and having a glass panel (20, 21) accommodated in the door leaf frame (8, 9), wherein door hinges (18) are to be arranged on the door leaf frame (8, 9) for directing the weight of the door leaf (7) into a door box (10), wherein the frame capping beams (14-17) are each firmly bonded to the glass panel edge and wherein the glass panel (20, 21) is composed of a plurality of individual panels (22) being firmly secured to each other by spacers and/or having different thicknesses and/or being hardened and/or being composed of single-panel safety glass or multi-panel safety glass,
   characterized in that,
   the frame capping beams (14-17) and the glass panel (20, 21) are fastened in such a way that the glass panel (20, 21) serves as a carrying element and wherein a hollow space between the individual panels is filled with fire-protection gel.
2. Framed glass door leaf according to claim 1,
   characterized in that,
   the bonding is present throughout the entire length of the glass panel edge.
3. Framed glass door leaf according to one of the preceding claims,
   characterized in that,
   the bonding is additionally carried out on the boundary area of the wide sides of the glass panel (20, 21) which are overlapped by the frame capping beams (14-17) and/or by a glass strip (34) of the same.
4. Framed glass door leaf according to one of the preceding claims,
   characterized in that,
   all or some or at least one of the frame capping beams (14-17) comprise an L-shaped profile having a web (26) and a bar (27) protruding therefrom.
5. Framed glass door leaf according to claim 4,
   characterized in that,
   a glass strip (34) is arranged on the side of the L-shaped profile which is opposed to the bar (27).
6. Framed glass door leaf according to claim 5,
   characterized in that,
   the glass strip (34) is fitted to the bat (27) with regard to shape and size, such that the frame capping beam (14, 17) provided with the glass strip (34) has a U-profile shape overall.
7. Framed glass door leaf according to any one of the claims 4 to 6,
   characterized in that,
   a hinge band (52) of a door hinge (18) being arranged on the side of the door leaf is secured to the web of a vertical frame capping beam (14) on its side which is distant from the glass panel (20) by means of a hinge fastening device (50).
8. Framed glass door leaf according to any one of the claims 1 to 6,
   characterized in that,
   a hinge band (52) of a door hinge (18) being arranged on the side of the door leaf is secured to the side of a vertical frame capping beam (14) which is distant from the glass panel (20) by means of a hinge fastening device (50).
9. Framed glass door leaf according to one of the preceding claims 7 or 8,
   characterized in that,
   the hinge band (52) being arranged on the side of the door leaf is accommodated in flush with the side remote from the glass panel (20).
10. Framed glass door leaf according to any one of the preceding claims 7 to 9,
    characterized in that,
    the hinge fastening device (50) comprises at least one threaded sleeve (53) that is tucked in a locking fashion from a side of the frame capping beam (14) facing the glass panel (20) into an opening in a pinching fashion, and at least one screw, preferably a counter-sunk screw (56), that is screwed in from the side distant of the glass panel (20) into the threaded sleeve (53) for securing the door hinge (18).
11. Framed glass door leaf according to one of the preceding claims,
    characterized in that,
    two lateral vertical frame capping beams (14, 15) and one upper horizontal frame capping beam (16) are provided and that no frame capping beam is present on the lower side of the framed glass door leaf.
12. Framed glass door leaf according to any one of the claims 1 to 10,
    characterized in that,
    the door leaf frame (8) comprises a total of four frame capping beams (14-17) that frame the window panel (20) from all sides.
13. Framed glass door leaf according to any one of the preceding claims,
    characterized in that,
    the door leaf frame (8) is shaped and coupled to the glass panel (20) such that a maximum bending stress of 30 N/mm² for the glass panel, preferably 18 N/mm², further preferably 10 N/mm² is not surpassed when the entire structure is laterally buckled due to a load applied in use.
14. Framed glass door leaf according to one of the claims 7 or 8,
    characterized in that,
    the door leaf frame (8) is shaped and secured to the glass panel (20) such that approximately ½ to ¼ of the maximally allowed tensile strength of the employed glass panel is not surpassed when the entire structure is laterally buckled under the application of forces occurring during fire tests.
15. Framed glass door leaf according to any one of the preceding claims,
    characterized in that,
    a reinforcement bead (38, 40) made of non-wooden material, which is more rigid compared to wooden material, preferably made of a fire resistant material such as metal is provided between the glass panel (20) and a frame capping beam (14-17).
16. Framed glass door leaf according to claim 15,
    characterized in that,
    a profiled metal rail (38) is attached to the side of the frame capping beam (14-17) facing the window panel (20) for reinforcing.
17. Framed glass door leaf according to claim 15 or 16,
    characterized in that,
    a metal rail (40) framing the edge of the window panel (20) is provided.
18. Framed glass door leaf according to any one of the preceding claims,
    characterized in that,
    a fire-protective concealed edge band (30) having a strip (31) of material which is foaming in the case of a fire and a coating (32) adapted to the frame capping beam with regard to appearance, is secured to the side of the frame capping beam (14-17) distant from the glass panel (20).
19. Framed glass door leaf according to any one of the preceding claims,
    characterized in that,
    the frame capping beams (14-17) are made of solid wood, laminated wood and/or finger-jointed wood.
20. Framed glass door leaf according to any one of the preceding claims,
    characterized in that,
    each of the frame capping beams (14-17) viewed from a broad visible face have a total width of at most 50 to 40 mm.
21. Framed glass door (1-4) having a door box (10) and at least one framed glass door leaf (7) according to any one of the preceding claims.
22. Framed glass door according to claim 21,
    characterized in that,
    the door box (10) entirely covers at least one of the frame capping beams (14-17) on the side of the opposing hinge in a closed state of the door (1-4).
23. Framed glass door according to claim 21 or 22,
    characterized in that,
    the door box (10) has door box posts (11-13) based on wooden material.
24. Framed glass door according to claim 23,
    characterized in that,
    the door box posts (11-13) are made of solid wood, laminated wood and/or finger-jointed wood.
25. Framed glass door according to any one of the claims 21 to 24,
    characterized in that,
    the door box (10) comprises at least one door box post (11-13) having an L-profile shape and comprising a web (24) and a bar (25).
26. Framed glass door according to claim 25,
    characterized in that,
    the bar (25) of the door box post (11-13) covers the directly neighbouring frame capping beam (14-17) of the framed glass door leaf (7).
27. Framed glass door according to any one of the claims 25 to 26,
    characterized in that,
    a hinge accommodation pocket (54) configured to fixedly accommodate the hinge band (55) of a door hinge (18) being arranged on the door box side is provided on the bar-free end of the door box posts web (24) on the fire-side.
28. Framed glass door according to any one of the claims 21 to 27,
    characterized in that,
    a fire-protective concealed edge band (30) having a strip (31) of material which is foaming in the case of a fire and a coating (32) adapted to the frame capping beam with regard to appearance, is secured to the side of a door box post (11-13) which is facing the framed glass door leaf (7).
29. Method of manufacturing a framed glass door leaf or rather a framed glass door according to one of the preceding claims,
    characterized in that,
    the maximum pending stress of the glass panel is determined under normal conditions in a bend test by bending an assembled testing door leaf, and such a small thickness of the door leaf frame is chosen in such a way that bending stresses of 8 to 30 N/mm² are reached during the bend test.

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