EP3527770B1 - Manufacturing method of a system for glass pane fixing with wood frame without separation loss - Google Patents

Description

The invention relates to a method for producing a system for fixing a glass pane with two opposite flat, plane-parallel outer surfaces by means of a wing made from a wooden block, the glass pane being seated on the wing in a plane perpendicular to its plane-parallel outer surfaces, and by means of one in the assembled state against one of the outer surfaces of the glass retaining strip, which is made together with the wing from the same raw block.

• a) Bereitstellen des Rohblocks aus Holz;
• c) Innenprofilierung des Verbands aus Flügel und Glashalteleiste auf der im montierten Zustand des Systems Glasscheiben-zugewandten Seite des Flügels;
• d)Vertikale Profilierung mittels vertikalem Trennschnitt zwischen Flügel und Glashalteleiste;
• f) Durchführen eines horizontalen Trennschnitts zur Trennung von Flügel und Glashalteleiste; sowie
• g) Montage des Systems mit Zusammenfügen von Flügel und Glashalteleiste.

The process for making this system involves the following steps:

• a) providing the raw block of wood;
• c) internal profiling of the association of sash and glass retaining strip on the side of the sash facing the glass pane in the assembled state of the system;
• d) Vertical profiling by means of a vertical cut between the wing and the glass retaining strip;
• f) performing a horizontal separating cut to separate the wing and the glass retaining strip; such as
• g) Assembly of the system with joining of the sash and glass retaining strip.

Background of the Invention

Such a method is known from DE 198 20 409 A1
(= Reference [0]).

Similar fixation systems for glass panes - and thus in principle also their manufacturing processes - are known, for example, from DE 20 2015 106 983 U1 (= Reference [1]), DE 20 2017 106 284 U1
(= Reference [2]) or off WO 2015 143 462 A1 (= Reference [3]).

Further state of the art

Other systems of this type have been available for many years and from numerous companies.

For example, the company Holzmanufaktur Rottweil, Neckartal 161, D-78628 Rottweil offers both new productions and reconstructions of historical, in particular also listed, classic composite windows (see reference [4] = Internet presence http://www.holzmanufakturrottweil.de/arbeitsfelder/ window ).
The corresponding manufacturing process contains the manufacturing steps a) to c), e) and g) defined at the outset. The horizontal separating cut f) for separating the sash and the glass retaining strip is already implied in step e) due to the geometries and the relative position of the sash and the glass retaining strip.

The company Max Wehrle GmbH, Gewerbestrasse 1, offers modern partition windows with the characteristics defined at the beginning,
D-79183 Waldkirch (see reference [5] = Internet presence http://www.wehrle-fensterbau.de/fenster/holzfenster.php ). A possible production process with steps a) to c) and e) to g) is in the Figures 2a to 2g represented the present drawing. In front of the horizontal separating cut f) for separating the sash and the glass holding strip, a spacing strip is inserted between the sash and the glass holding strip in order to counteract compressive forces when the processed wooden block is compressed vertically and the surfaces that arise simultaneously during the separating cut in terms of their geometry, in particular their relative distances, as accurately and accurately as possible to be able to manufacture.

A similar manufacturing process, which also includes steps a) to c) and e) to g), is shown in FIGS Figures 3a to 3g represented the present drawing. The fixation system shown in turn has all the physical characteristics defined at the outset and is offered by Fenster Dörig AG, Blattenheimatstrasse 2b, CH-9050 Appenzell (see reference [6] = Internet presence http://www.doerig.ch/unternehmen/ production.html ).

Compared to the system described above Fig. 2 is the separating cut in production step f) - due to the special geometry and the relative positions and dimensions of sash and glass retaining strip - a little finer, so that in step a) a raw block with smaller vertical dimensions than in the system according to reference [5] can be selected.

Common to the known fixing systems for glass panes discussed above is, among other things, that the two surfaces of the wing and the glass retaining strip, which are produced when they are separated - usually in production step f) - later in the assembled assembly in assembly step g) come into contact with one another or lie opposite one another, and that these two surfaces therefore have to be machined particularly precisely, which requires either complex and expensive reworking or a particularly fine and thus again complex separating cut. In addition, the high demands on dimensional accuracy in this manufacturing step mean that a raw block with significantly larger vertical dimensions must be provided in step a) than would actually be necessary with regard to the vertical gauge blocks of the assembled bandage. This inevitably leads to increased material consumption of wood.

Further disadvantages of the known systems result from the following facts:
In the current state of the art, there should be a defined gap of 0.5 to 1 mm between the weather-side outer surface of the glass retaining strip and the wooden frame or optionally a rain rail, in order to ensure optimal tightness of the overall element. In the separation method according to the prior art, due to the increased tolerance in separation step f), this gap width is increased in order to prevent blocking of the lacquer layer of both elements, which can lead to a reduced overall tightness of the element.

Furthermore, the separation cut is always carried out completely according to the state of the process engineering. This entails not inconsiderable safety-related risks, since in the separating cut the two parts are completely detached from one another at the last moment of the separating process and this causes a setback behavior due to the counter-rotating direction of the separating means in relation to the feed direction of the two now separated Workpieces. This applies in particular if the mechanical force of the feed is roughly disproportionate to the frictional resistance of the support side.

As in the Figures 3a-g To recognize the drawing, according to the prior art, the weatherproof glass retaining strip is screwed at a distance by means of a mechanical spacer. This has the considerable disadvantage that a screw is close to weathering, which can lead to condensation and dampening of the wooden structure. Furthermore, the screw always interrupts the lacquer layer in the weathering area, which can lead to lacquer tearing and thus to a lack of wood protection.

In the state of the art, positioning is also carried out when the glazing bead is mounted on the existing casement at best via a groove or a fold that is parallel to the glass support surface. A positioning that takes place parallel to the outer glass contact surface results exclusively from the separating surface created in step f), which will generally only be of low dimensional accuracy. However, this design disadvantage does not have any positive effects with regard to the tensile forces on the load on the corner connection, which is of crucial importance in the overall construction due to the higher glass weights.

Another significant disadvantage in the separation process according to the prior art is negative effects with regard to the thermal conductivity with respect to the provision of the raw block (see Figures 2b and 3b ) in relation to the state of assembly (see Fig. 2g and 3g ), which can be explained by the fact that the raw block is thicker than the casement and glazing bead when assembled.

Another disadvantage of the prior art is that the separating cut (according to Fig. 2f and 3f ) after the assembly and pressing of four elements into a window sash. A required constructive 6-sided wood protection of all parts is therefore usually not available in the state of the art separation process.

Finally, a further disadvantage with the current state of the art is that without static window bonding, the wind load and possibly a suction effect have a physical effect on the contact surface between the sash frame and the glass retaining strip.

Object of the invention

In contrast, the object of the present invention is to provide, using the simplest possible technical means, an uncomplicated and inexpensive system of the type described at the outset for fixing a glass pane, which is to be particularly easy to handle and should be able to be used as universally as possible, the requirement for particular dimensional accuracy and high Manufacturing accuracy in the manufacture of the separating surfaces between sash and glass retaining strip should be avoided. However, the system should nevertheless enable precise positioning of the system parts relative to one another. Last but not least, the fixation system should also enable at least largely non-destructive glazing. Finally, it is also an object of the invention to calculate the length of the inner casement to the outer glass retaining strip due to its changed position so that it is installed Condition corresponds to the required length again and does not require reworking.

Brief description of the invention

According to the invention, this - relatively complex - task with regard to the manufacture of the system and thus also by the associated process product is achieved in a surprisingly simple and effective manner by a method according to claim 1.

Alternatively, in step f), instead of a complete separation, a predetermined breaking point can be inserted between the glass retaining strip and the sash.

In any case, the positioning of the glass retaining strip relative to the sash between step f) and the assembly step g) is always carried out in such a way that the length determination of the strip is again correct in relation to the installation state.

Operation of the invention and further advantages over the prior art

The present description therefore proposes a system for fixing a glass pane, which enables the glass pane to be fixed, for example, to a window or door frame with the aid of a glass retaining strip. This system is not part of the invention. The system is characterized by the fact that the separated glass retaining strip is assembled with the corresponding sash, which is made simultaneously from the same wooden block is rotated 180 ° with respect to its position during manufacture with respect to a vertical axis of rotation.

This - apparently, but central - measure enables a relative position of the sash and the glass retaining strip during their simultaneous production from the ingot, which allows the ingot to be calibrated only to a vertical height in production step b), which is only the exact later height the bandage of sash and glass retaining strip in the assembled state, but not — as is absolutely necessary in the prior art — also contains the thickness d _{T of} the horizontal separating cut in production step f). This means that a raw block with a smaller vertical height can be provided in production step a) than would be possible in the prior art.

Due to the above-described rotation of the glass holding bar by 180 ° before its assembly with the wing, entirely different contact surfaces between the wing and the glass holding bar can now be selected from the cut surfaces between the two parts of the bandage produced in the horizontal separating cut in production step f). The level that defines the connection between the inner and the outer frame wing, i.e. between the wing and the glass retaining strip, is no longer generated by the separating cut in the system, which is why tolerances that arise when separating the two elements are no longer relevant - in contrast to all other known systems. Since the quality of the two contact surfaces is of particular importance for the quality of the fixation system produced, there are now completely different and significantly improved possibilities for the cost-effective, but nevertheless accurate and functionally reliable manufacture of such systems.

Furthermore, the system is particularly simple and inexpensive in terms of manufacture and assembly. It can be used largely regardless of the type of glass panes used. Since the system only has low tolerance requirements, it can be used almost universally, especially for very different glass thicknesses. Nevertheless, the system does not require a large number of individual elements in comparison to the previous systems known from the prior art.

A glass pane can also be gassed out largely non-destructively, so that the fixing system can then be used again. For example, repairing a window or door with a glass pane is considerably simplified.

Preferred embodiments of the invention

Embodiments of the invention are very particularly preferred in which the horizontal separating cut is carried out in production step f) without prior insertion of a spacer strip between the sash and the glass retaining strip. In this last manufacturing step f), it is absolutely necessary - both in the prior art and in the invention - to guide or hold the dressing to be processed from above and below during the horizontal cutting cut, for example by means of mechanical clamping or by means of feed rollers. For this, a certain counter pressure is exerted on the bandage. However, while in the present invention this back pressure occurs exclusively on the top and the bottom of the wing to be separated (see Fig. 1f ), the pressure from above is always used in the prior art on the top of the wing, which is still connected to the glass retaining strip before this last cut, but which exerts from below on the underside of the glass retaining strip, which has not yet been separated. For safety reasons, however, no pressure should be applied to the saw blade of the cutting saw, which would otherwise lead to kickback behavior in the cutting process. Therefore, the procedure according to the state of the art absolutely requires the use of a - quite precise - spacer bar with a relatively small length tolerance between the sash and the glass retaining bar (see Fig. 2f and 3f ), which, however, can be completely omitted in the invention. In this way, cost savings and considerable improvements in quality in the finished product are achieved with the invention.

In further advantageous embodiments of the invention, a vertical groove is simultaneously milled into the bottom surface of the wing in production step d) together with the vertical separating cut between the wing and the glass retaining strip. This provides a defined area for the introduction of an adhesive, which statically connects the sash and the glazing bead in order to absorb tensile and shear forces which act on the sash due to the high glass weights. A joint permeability between sash and glazing bead is reliably prevented when an adhesive is introduced.

It is therefore also particularly advantageous if adhesive is introduced into the vertical groove before assembly of sash and glass retaining strip in assembly step g).

In practice, embodiments of the method according to the invention, in which before the assembly of Sash and glass retaining strip in assembly step g) a sealing element and / or insulating material is introduced into a gap between sash and glass retaining strip and / or the gap is designed as a structural air gap with heat-insulating properties. This leads to considerable improvements in the heat transfer coefficients ("lambda") of the overall construction. In this embodiment, even without a separate insulation material, a significantly better lambda value can be achieved due to an air chamber. The economy of this embodiment can be explained by the complex construction of a special scantling - such as that from the manufacturer Holz-Schiller, Pointenstr. 24-28, D-94209 Regen (see their website in reference [7]) product "Airotherm® window scantling". By using the gap dimension as an insulation level, the high investment in higher raw block goods, as in the Fig. 2a and 3a is shown.

Further advantageous embodiments of the invention are characterized in that the production step f) does not have to be carried out as a complete separating cut, but rather the separating cut is carried out in such a way that it leads to a predetermined breaking point, as a result of which the glass holding strip is carried along in the further production process, and as required in the Manufacturing process can also be separated manually. The predetermined breaking point has no influence on the rest of the construction. This is of considerable economic importance, especially in the further work processes of the grinding and painting process, because no duplicate part tracking through the manufacturing process is necessary.

Embodiments of the invention are particularly preferred in which the glass retaining strip in the assembly step g) is relative to the wing is arranged such that the glass retaining bar faces the weather side in the installed final state of the system. Advantages result from the fact that the raw blocks according to the Fig. 1a, 2a and 3a in practice each consist of multi-layer horizontal slats, which are built from a particularly weather-resistant or modified type of wood due to their weather-side location - in contrast to the room-side wooden slats, which in particular have an aesthetic effect. This serves profitability, in particular both through a longer life cycle of the product and less use of warranties due to notifications of defects. Preferred developments of these embodiments of the invention provide that a different surface treatment of the outer surfaces of the later wing and the later glass retaining strip takes place in the machined raw block, so that in particular two different colors of the later wing and the subsequent glass retaining strip are produced. Advantages are that using a separating cut with a predetermined breaking point, the first two wood coating operations, usually impregnation and priming, can be carried out on the connected workpiece, which means that considerable material savings can be achieved with regard to overspray. Subsequently and before the final painting, the workpiece is preferably separated into the sash frame and the glass retaining strip in order to produce different color surfaces of the sash and the glass retaining strip.

Fixing systems which are produced by the method according to the invention described above form no part of the present invention.

In a first class of embodiments, the wing can be designed as a fixed, non-movable frame part in the assembled state of the system.

An alternative class of embodiments is characterized in that the wing is designed as a movable, in particular pivotable frame part in the assembled state of the system.

An embodiment is also particularly preferred in which, in the assembled state, a latching element is provided between the wing and the glass retaining strip. This is of particular importance, since both extreme wind loads and suction effects on large window areas with high wind courtesy can lead to the curvature of the glass pane. The latching element in the special embodiment fixes the pane and already generates pressure when it is screwed on, so that the movement of the glass pane is restricted. In this embodiment, the latching element therefore takes on the function of a somewhat more complex form of glass bonding.

In addition to the sash and glass retaining strip, one or more further frame parts, preferably also made of wood, can also be provided in further embodiments of the invention.

In one class of advantageous embodiments, the fixing system has an elongated damping element on its outer surface on the glass side, which can in particular be pushed on, glued on, welded on, foamed or sprayed on. This results in a considerable damping of the effective pressure during the end screw connection. This also allows the height of the fixation system to be defined so that a glazing gasket (see below) can be inserted.

In the case of additional or alternative developments, it is advantageous if a flow barrier is present which prevents an uncontrolled exchange of air between an outer surface of the frame and an outer surface of the glass pane. This makes it possible for the window frame to have a high thermal resistance, which means that particularly energy-efficient, energy-saving windows can be produced. This can also prevent undesirable condensate formation. This is done by forcing the glass retaining strip to be pushed parallel onto the fixing element. The glass retaining strip is pressed onto the wing, which in turn prevents air from flowing through.

Furthermore, in advantageous embodiments of the invention, a sealing element can be provided between the glass retaining strip and the glass pane, which engages in a sealing groove of the glass retaining strip in the assembled state. With this configuration, this sealing element can press against the glass pane and be supported on it. As a result, it can press the glass retaining strip against the self-locking element and thus build up or maintain a pressure necessary for locking the glass pane.

Finally, in embodiments of the invention, the thermal resistance of the window can also be optimized if a preferably thermally insulating top bar is arranged in the assembled state between the sash and the glass pane. Further features and advantages of the invention result from the following detailed description of exemplary embodiments of the invention with reference to the figures of the drawing, which shows details essential to the invention, and from the claims. The individual features can each be implemented individually or in groups in any combination in variants of the invention.

Detailed description of the invention and drawing

Fig. 1

schematische Ansichten der verschiedenen sukzessiven Phasen des Fertigungsablaufs des erfindungsgemäßen Verfahrens zur Herstellung einer Ausführungsform eines Fixierungssystems:

1. a) Rohblock aus Holz, aus welchem der spätere Verband von Flügel und Glashalteleiste gefertigt werden soll,
2. b) Kalibrierung des Rohblocks durch Hobeln von oben und unten auf eine Kalibrierungsdicke D_K,
3. c) Innenprofilierung des Verbands durch Bearbeitung des Rohblocks von der -im vorliegenden Bild- linken Seite,
4. d)Vertikale Profilierung mittels vertikalem Trennschnitt zwischen Flügel und Glashalteleiste sowie Fräsen einer Nut in die unterste Fläche des Flügels,
5. e)Außenprofilierung des Verbands durch Bearbeitung des Rohblocks von der -im vorliegenden Bild- rechten Seite,
6. f) horizontaler Trennschnitt zwischen Flügel und Glashalteleiste, und
7. g) Montage des Systems mit Drehung der Glashalteleiste um 180° und Zusammenfügen mit dem Flügel;

Fig. 2

Fertigungsablauf eines Fixierungssystems nach dem Stand der Technik gemäß Referenz [5], also ohne den erfindungsgemäßen Herstellungsschritt d), jedoch mit Zwischenfügen einer Distanzleiste beim horizontalen Trennschnitt in Schritt f) zwischen Flügel und Glashalteleiste sowie Montage in Schritt g) ohne vorherige Drehung der Glashalteleiste um 180° in anderer Relativposition;

Fig. 3

Fertigungsablauf eines Fixierungssystems nach dem Stand der Technik gemäß Referenz [6], also ebenfalls ohne den erfindungsgemäßen Herstellungsschritt d), jedoch mit Zwischenfügen einer Distanzleiste beim horizontalen Trennschnitt in Schritt f) zwischen Flügel und Glashalteleiste sowie Montage in Schritt g) ohne vorherige Drehung der Glashalteleiste um 180° in anderer Relativposition;

Fig. 4a

eine schematische Querschnittsansicht eines Ausführungsbeispiels mit Fixierungselement zwischen der Glashalteleiste und einer Verklotzungsbrücke im montierten Zustand; und

Fig. 4b

eine weitere Ausführungsform mit einem Fixierungselement, welches mit einer zusätzlichen Ausbuchtung in eine entsprechende zusätzliche Aufnahmehöhlung der Glashalteleiste eingreift.

The schematic drawing shows exemplary embodiments of the invention, which are explained in more detail in the description below.
Show in detail:

Fig. 1

schematic views of the different successive phases of the production sequence of the method according to the invention for producing an embodiment of a fixation system:

1. a) raw block made of wood, from which the later combination of sash and glazing bead is to be made,
2. b) calibration of the raw block by planing from above and below to a calibration thickness D _K ,
3. c) internal profiling of the bandage by machining the ingot from the left side in the present image,
4. d) vertical profiling by means of a vertical cut between the wing and the glass retaining strip and milling a groove in the lowest surface of the wing,
5. e) external profiling of the bandage by machining the raw block from the right-hand side in the present image,
6. f) horizontal separating cut between sash and glass retaining strip, and
7. g) assembly of the system with rotation of the glass retaining bar by 180 ° and assembly with the wing;

Fig. 2

Manufacturing sequence of a fixing system according to the prior art according to reference [5], ie without the manufacturing step d) according to the invention, but with the interposition of a spacer bar in the horizontal separating cut in step f) between the wing and the glass retaining bar and assembly in step g) without prior rotation of the glass retaining bar 180 ° in another relative position;

Fig. 3

Manufacturing process of a fixing system according to the prior art according to reference [6], that is also without the manufacturing step d) according to the invention, but with the interposition of a spacer bar in the horizontal separating cut in step f) between the wing and the glass retaining bar and assembly in step g) without prior rotation of the glass retaining bar by 180 ° in another relative position;

Fig. 4a

a schematic cross-sectional view of an embodiment with a fixing element between the glass retaining bar and a lugging bridge in the assembled state; and

Fig. 4b

a further embodiment with a fixing element which engages with an additional bulge in a corresponding additional receiving cavity of the glass retaining strip.

The present invention relates to a method for producing a specially modified system for fixing a glass pane 10 with two opposite, plane, plane-parallel outer surfaces 10 ', 10 " by means of a wing 11 made from a wooden raw block 00 , the glass pane 10 in the assembled state in a plane perpendicular to its plane-parallel outer surfaces 10 ', 10 "is seated on the wing 11, and by means of a glass retaining strip 12 in the assembled state against one of the outer surfaces 10', 10" , which is manufactured together with the wing 11 from the same raw block 00.

In addition, a blocking bridge 13 can be arranged between the glass pane 10 and the wing 11, on which the glass pane 10 strikes or sits on it in the assembled state. A fixing element 14 arranged between the glass pane 10 and the glass retaining strip 12 can also be provided, which in the assembled state builds up a contact pressure on the glass pane 10.

Details of these embodiments are in particular in the Figures 4a and 4b good to see.

• a) Bereitstellen des Rohblocks 00 aus Holz;
• b) Kalibrierung des Rohblocks 00 durch Hobeln auf eine Kalibrierungsdicke D_K, die der exakten späteren Höhe eines Verbands bestehend aus dem Flügel 11 und der Glashalteleiste 12 im montierten Zustand, gegebenenfalls zuzüglich der Dicke d_T eines horizontalen Trennschnitts bei der Trennung von Flügel 11 und Glashalteleiste 12 während der Fertigung in Schritt f), entspricht;
• c) Innenprofilierung des Verbands aus Flügel 11 und Glashalteleiste 12 auf der im montierten Zustand des Systems Glasscheiben-zugewandten Seite des Flügels 11;
• e) Außenprofilierung des Verbands aus Flügel 11 und Glashalteleiste 12 auf der im montierten Zustand Glasscheiben-abgewandten Seite des Flügels 11;
• f) Durchführen eines horizontalen Trennschnitts zur Trennung von Flügel 11 und Glashalteleiste 12 in dem in den Schritten b) bis e) bearbeiteten Rohblock 00; sowie
• g) Montage des Systems mit Zusammenfügen von Flügel 11 und Glashalteleiste 12.

The production of such a fixation system basically comprises the following steps, which are already known from the prior art , in particular from the Figures 2 and 3 can be seen:

• a) providing the raw block 00 made of wood;
• b) Calibration of the raw block 00 by planing to a calibration thickness D _K , which is the exact later height of a bandage consisting of the wing 11 and the glass retaining strip 12 in the assembled state, possibly plus the thickness d _{T of} a horizontal separating cut in the separation of sash 11 and glass retaining strip 12 during production in step f);
• c) internal profiling of the bandage of wing 11 and glass retaining strip 12 on the side of wing 11 facing the glass pane in the assembled state of the system;
• e) external profiling of the bandage of wing 11 and glass retaining strip 12 on the side of wing 11 facing away from the glass pane in the assembled state;
• f) performing a horizontal separating cut for separating the wing 11 and the glass retaining strip 12 in the raw block 00 machined in steps b) to e); such as
• g) assembly of the system with joining of wing 11 and glass retaining strip 12.

The separation cut is at Fig. 2f displayed more finely than in 3f .
In Fig. 3g the glass retaining bar is held at a defined distance using a mechanical screw connection.

As in the Figures 1a to 1g illustrated, the present invention is characterized in that
that the calibration of the raw block 00 in production step b) only takes place to the exact later height of the assembly of sash 11 and glass retaining strip 12 in the assembled state, the thickness d _{T of} the horizontal separating cut in production step f) not being added to the calibration thickness;
that a further manufacturing step d) is inserted between the manufacturing steps c) and e), namely
d) Vertical profiling by means of a vertical cut between wing 11 and glass retaining strip 12;
that before assembly of wing 11 and glass retaining bar 12 in assembly step g), the glass retaining bar 12 which has been produced and completely separated from wing 11 in step f) is rotated relative to wing 11 by 180 ° with respect to a vertical axis of rotation;
and that the glass retaining strip 12 is mounted relative to the wing 11 in the assembly step g) such that the glass retaining strip 12 lies in the assembled state of the system with a surface 12 " on the lowest surface 11" of the wing 11, but not with the horizontal separation cut in FIG Production step f) produced cut surface 12 ' on the cut surface 11' of the wing 11, which was produced simultaneously by the horizontal separating cut in production step f).

In particular, the horizontal separating cut in production step f) is carried out without previously inserting a spacer bar 20 between the wing 11 and the glass retaining bar 12, as is absolutely necessary in the prior art methods (see Figures 2f and 3f ).

After assembly step g), a gap 17 remains between the cut surface 11 'of the wing 11 and the cut surface 12' of the glass retaining strip 12 , in which a sealing element 15 and / or insulating material 16 can be inserted, as in FIGS Figures 4a and 4b can be seen.

Reference symbol list:

00

Rough block made of wood

10th

Glass pane

10 ', 10 "

Outer surfaces of the glass sheet

11

wing

11 '

Cutting surface of the wing in the horizontal separating cut

11 "

lowest surface of the wing

11a

vertical groove in the bottom surface of the wing

12

Glass retaining strip

12 '

Cut surface of the glass holding strip for the horizontal cut

12 "

Surface with which the glass retaining strip is in contact with the lowest surface of the sash when assembled

13

Blocking bridge

14

Fixation element

15

Sealing element

16

Insulation material

17th

Gap between sash and glass retaining strip

20th

Spacer bar between sash and glass retaining bar

Reference list:

[0]

DE 198 20 409 A1

[1]

DE 20 2015 106 983 U1

[2]

DE 20 2017 106 284 U1

[3]

WO 2015 143 462 A1

[4]

http://www.holzmanufaktur-rottweil.de/arbeitsfelder/fenster

[5]

http://www.wehrle-fensterbau.de/fenster/holzfenster.php

[6]

http://www.doerig.ch/unternehmen/produktion.html

[7]

https://www.holz-schiller.de

Publications considered to assess patentability:

[0]

DE 198 20 409 A1

[1]

DE 20 2015 106 983 U1

[2]

DE 20 2017 106 284 U1

[3]

WO 2015 143 462 A1

[4]

http://www.holzmanufaktur-rottweil.de/arbeitsfelder/fenster

[5]

http://www.wehrle-fensterbau.de/fenster/holzfenster.php

[6]

http://www.doerig.ch/unternehmen/produktion.html

[7]

https://www.holz-schiller.de

Claims (9)

1. Method for producing a system for securing a glass pane (10) comprising two opposite, flat, plane-parallel outer surfaces (10', 10") by means of a sash (11) manufactured from a wooden block (00), wherein the glass pane (10), in the assembled state, rests on the sash (11) in a plane perpendicular to its plane-parallel outer surfaces (10', 10"), and by means of a glass retaining strip (12) which abuts one of the outer surfaces (10', 10") in the assembled state of the system, which strip is manufactured together with the sash (11) from the same block (00), the production comprising the following steps:

   a) providing the block (00) made of wood;

   b) calibrating the block (00) by planing it to a calibration thickness D_K which corresponds to the exact later height of a structure consisting of the sash (11) and the glass retaining strip (12) in the assembled state, optionally plus the thickness d_T of a horizontal separating cut, if the sash (11) and the glass retaining strip (12) are separated during the manufacturing in step f);

   c) internally profiling the structure consisting of the sash (11) and the glass retaining strip (12) on the side of the sash (11) facing the glass pane in the assembled state of the system;

   d) vertically profiling by means of a vertical separating cut between the sash (11) and the glass retaining strip (12);

   e) externally profiling the structure consisting of the sash (11) and the glass retaining strip (12) on the side of the sash (11) facing away from the glass pane in the assembled state;

   f) carrying out a horizontal separating cut in order to separate the sash (11) and the glass retaining strip (12) in the block (00) machined in steps b) to e); and

   g) assembling the system by joining the sash (11) and the glass retaining strip (12) together;

   wherein in manufacturing step b) the block (00) is only calibrated to the exact later height of the structure consisting of the sash (11) and the glass retaining strip (12) in the assembled state, wherein the thickness d_T of the horizontal separating cut in manufacturing step f) is not added to the calibration thickness;
   wherein, before joining the sash (11) and the glass retaining strip (12) together in assembly step g), the glass retaining strip (12) which has been manufactured and completely separated from the sash (11) in step f) is rotated by 180° relative to the sash (11) about a vertical axis of rotation;
   and wherein the glass retaining strip (12) is mounted relative to the sash (11) in assembly step g) such that the glass retaining strip (12), in the assembled state of the system, abuts the bottom surface (11") of the sash (11) with a surface (12"), but does not abut the cut surface (11') of the sash (11) which is generated during the horizontal separating cut in manufacturing step f) with its cut surface (12') which was generated simultaneously by the horizontal separating cut in manufacturing step f).
2. Method according to claim 1, characterized in that the horizontal separating cut in manufacturing step f) is carried out without the prior insertion of a spacer strip (20) between the sash (11) and the glass retaining strip (12).
3. Method according to either claim 1 or claim 2, characterized in that, in manufacturing step d), a vertical groove (11a) is simultaneously also machined into the bottom surface (11") of the sash (11) together with the vertical separating cut between the sash (11) and the glass retaining strip (12).
4. Method according to claim 3, characterized in that, before joining the sash (11) and the glass retaining strip (12) together in assembly step g), adhesive is introduced into the vertical groove (11a).
5. Method according to any of the preceding claims, characterized in that, before joining the sash (11) and the glass retaining strip (12) together in assembly step g), a sealing element (15) and/or insulating material (16) is introduced into a gap (17) between the sash (11) and the glass retaining strip (12) and/or the gap (17) is designed as a structural air gap having heat-insulating properties.
6. Method according to any of the preceding claims, characterized in that, at a time before manufacturing step f), preferably between step e) and step f), the surface of the outer surfaces of the block (00) machined in steps b) to e) are treated, in particular using a wood preservative.
7. Method according to any of the preceding claims, characterized in that, at a time before manufacturing step f), preferably between step e) and step f), sanding, in particular intermediate lacquer sanding, is carried out on the outer surfaces of the block (00) machined in steps b) to e).
8. Method according to any of the preceding claims, characterized in that, in assembly step g), the glass retaining strip (12) is arranged relative to the sash (11) such that the glass retaining strip (12) faces the weather side in the installed final state of the system.
9. Method according to claims 6 and 8 and optionally also according to claim 7, characterized in that the surface of the outer surfaces of the later sash (11) and the later glass retaining strip (12) are treated differently in the machined block (00) such that in particular two different colors of the later sash (11) and the later glass retaining strip (12) are produced.

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