EP2924223A1 - Method for manufacturing a door, in particular the leaf of a door and device for carrying out the method and door leaf, made with the device - Google Patents

Abstract

The invention relates to a method for producing a door (1), in particular a door leaf (1), with an insert (2) for insulation and / or stabilization, the door leaf (1) being coated with door cover plates (3). According to the method of the invention, for producing a door leaf (1) it is proposed that in a first step a plurality of parallel arranged transverse or longitudinal profile elements (4, 5) between two longitudinally or transversely arranged profile elements (4, 5) are attached to form a skeleton ( 6), in which optionally an insert for insulation and / or stabilization can be introduced, and in which case the skeleton (6) is calibrated in a second step to measure, and then in a third step, the door cover plates (3) are applied ,

Description

Technical environment

The invention relates to a method for producing a door, in particular a door leaf, with an insert for insulation and / or stabilization, wherein the door leaf is coated with door cover plates.

State of the art

Door leaves with different surfaces are known from the prior art. The mechanical requirements for a door are different here, in which case the choice of the insert for the door version is essential. Known door leaves here consist of longitudinal and transverse bars, which form a peripheral, outer frame on the door leaf and wherein the frame is covered with so-called door cover panels. The cavity forming in the frame is in this case filled with differently formed materials, which on the one hand are used to insulate but on the other hand also to stabilize the door leaf.

For example, deposits with different door leaf weights are known. The lightest versions here are inserts that consist of honeycombs, which are formed from tight-sized cardboard. Another easy-to-build door panel insert is designed in such a way that tubular band strips or so-called continuous chipboard chips are introduced into the door panel. Another embodiment includes the heavy-building door leaves whose deposits are made of solid chipboard or solid chipboard. The last-mentioned door variants have a high stability here, which meets the corresponding demands.

A disadvantage of these known from the prior art doors or door leaves, it is considered that they make the production process very expensive, which is associated with a corresponding cost. Furthermore, it is considered disadvantageous that on the one hand the easy-to-build door leaves do not have the sufficient stability, on the other hand, the massive heavy door leaves build their cost structure ago very expensive.

task

The invention thus presents the problem of further developing a method for producing a door, in particular a door leaf, with an insert for insulation and / or stabilization with door cover plates, which can be designed very simply by its design, whereby in particular it is intended to realize that on the one hand a high stability is achieved, as is the case with the solid wood sheets, but with the proviso that the cost structure turns out to be as small as possible. Another object is that the method also provides the possibility for a non-specialist to produce a door leaf itself. The object also comprises an apparatus for manufacturing according to the method as well as a door or a door leaf.

solution

According to the invention, the object is achieved with the features of the main claim and the independent claims, with advantageous embodiment arising from the respective subclaims.

The advantages achieved by the invention are that due to the configuration of the insert, which consists essentially of parallel arranged transverse or longitudinal profile elements, a door leaf can be produced, on the one hand ensures the required high stability in the area, on the other hand by the simple composite can be done a self-assembly of the door leaf. Because according to the inventive method it is possible to align the transverse or longitudinal profile elements at a distance accordingly and to arrange them over the door leaf surface in sections. The longitudinal or transverse profiles are then simply attached to these parallel aligned profile elements to complete a so-called inner skeleton for the door leaf, thereby providing a stable skeleton by means of composite. In the resulting cavities between the transverse profile elements or longitudinal profile elements can then be optionally introduced for insulation and / or stabilization materials such as wool, paper, wood fiber boards, foam or the like. The skeleton thus created is then calibrated on both sides, so that on both sides of the skeleton a surface calibrated to the exact degree exists. The calibrated skeleton is then fed to a glue or glue applicator where the surfaces of the skeleton are coated with glue or glue. On this ground, calibrated and provided with glue or adhesive skeleton then the door cover panels are applied with or without filling in a further step front and back, which may include, for example, fleece or paper. On these surfaces then decorative applications are applied by means of applied glue bands or adhesive tapes. In the decors stone-like or even woody or paint-like decors can now be attached by means of glue strips or tapes on the front and the back of the skeleton. If the calibrated surface is coated or sprayed with an adhesive, this results in particular in the advantage that compression of the cover surfaces on the skeleton can be dispensed with altogether or is no longer necessary, which saves process steps in the production of the door leaf, which reduces the production costs to lead.

In order to obtain a positive connection between the transverse profile elements to the longitudinal profile elements, the transverse or longitudinal profile elements are provided at the ends with pins which engage in the longitudinal or transverse profiles where a groove is milled. Due to this training can also be achieved that according to the profiles on the longitudinal or transverse profiles can be moved accordingly, so that there may be different distances between the arranged transverse or longitudinal profiles.

In order to incorporate a lock pocket on the free longitudinal side of the door leaf, optionally an inner longitudinal profile element or an outer longitudinal profile element can be introduced on one of the longitudinal profiles in order to obtain a reinforced longitudinal profile arrangement which has sufficient filling to insert a lock with a strike plate in the milling slot provided for this purpose ,

According to a particularly advantageous embodiment of the invention, the longitudinal profile elements may consist of sub-profile elements which can be plugged into one another, so that the door or the door leaf is halved from its transport volume.

According to the invention, it is proposed according to feature that in a first step a plurality of parallel arranged transverse or longitudinal profile elements between two longitudinally or transversely arranged profile elements are attached to form a skeleton, optionally introduced in the insert for thermal and / or acoustic insulation and / or stabilization can be, and then wherein the skeleton created in a second step is ground to size, and then in a third step, the cover plates are applied. Before the cover plates are applied, the skeleton is conveyed through a glue or glue applicator. On the glued surfaces then the cover plates are placed. By means of applied glue bands on the cover plates decorative applications are applied.

The advantages achieved by the invention also consist in the fact that due to the formation of a door with insert, which consists of a flexible composite with profile elements, an insert for a door leaf can be provided which ensures the required high stability in the area on the one hand due to the profile elements On the other hand, by the flexible composite an introduction into the existing of the cross bars and longitudinal bars frame a machine integration in the prefabricated door leaf frame makes it much easier and easier to achieve. Because the flexibly held insert makes it possible that these can be introduced by providing a small storage space by simply pulling apart in the prefabricated door leaf frame, which is then integrated by attachment in or on the frame. The insert according to the invention is due to its design between the variants described in the prior art of a slightly building door leaf and a heavy-building door leaf, because the door leaf with the insert according to the invention has a high stability, as it is given in the solid door leaves, but under the The proviso that the cost structure is much cheaper. Advantageously, the profile elements are preferably made of wooden strips or wooden rods. It is also conceivable that other materials such as metal can be used as rods here.

According to a particularly advantageous embodiment of the invention, the flexibly connected profile elements are used in the frame formed by longitudinal and transverse bars in the longitudinal direction or in transverse orientation to the door leaf level. Thus, depending on the required degree of stability, the flexibly held composite formed insert can be prefabricated here accordingly, so that the profile elements in the door leaf can be vertically extending or correspondingly horizontally extending, wherein the flexible composite is arranged and aligned accordingly.

According to a particularly advantageous embodiment of the invention, the profile elements are end provided with pins to form a tongue and groove connection with the transversely arranged longitudinal bars. Thus, there is now the possibility that the grooved longitudinal bar can be attached to the stretchable flexible composite. In this case, the tongue and groove connection can preferably be provided with glue or adhesive, so that from the composite with the longitudinal bars a stable skeleton is formed, which is only to coat the completion of the door leaf.

Also, the profile elements can form a dovetail joint on the end faces with the longitudinal bars arranged transversely thereto. It goes without saying that the flexibly held insert can be threaded easily and easily on the grooved longitudinal bars, in which case the insert can then be pulled apart in the threaded state along the longitudinal latch. In this case, in each case the profile elements can then be firmly connected to the longitudinal bars, so that, as already described, the insert forms the skeleton of the door. The skeleton gives the door a high stability. To complete the door, all that is needed is for the top and bottom of the skeleton to be coated. In order to prevent back pressure in the deposit area of the door, the profile elements on the top and / or the underside are provided with ventilation slots, which allow natural interior ventilation.

According to a particularly advantageous embodiment, the profile elements are interconnected with a structure formed from honeycomb. In this case, the honeycomb structure is formed extendable and collapsible. The honeycomb structure as such consists of paper or cardboard. As such, the honeycomb structure may consist of strips which are preferably fastened to the profile elements at each end, so that, when pulled apart in the frame, a tilt-free spreading apart of the insert is made possible.

The invention also relates to a device and / or production line for producing a door leaf according to the method. In this case, in a first station, a plate-shaped insert is separated tension-free in partial areas with slit strip, in which the crossbars are inserted in another station, with two more crossbars being attached at the end. In a third station, the milling of the long sides in tenon shape then in the fourth station the grooved in longitudinal groove bars are recognized. In a station, optionally, the previously created skeleton can be pushed with the insert before it is implemented, for example, on an arranged production line, where another station is provided. In the Station is a calibration of the bottom and top of the manufactured door leaf made before it is equipped in another station with the decors.

Description of the drawings

Figur 1a/b

perspektivische Darstellung in Fig. 1a und in Fig. 1b des aus Längs- und Querprofilen erstellten Skelettes in zwei Ausführungen;

Figur 2

eine Stirnansicht der Leimbänder auf einer der Deckplatten;

Figur 3

eine Seitenansicht im Bereich des Schließblechs mit Schlosstasche;

Figur 4

eine perspektivische Darstellung zur Einbindung eines Innenlängsprofilelementes;

Figur 5a/b

eine Frontansicht eines zusammensetzbaren Türblattes, mit verdoppelten Querprofilelementen in Figur 5a und mit drei Querprofilelementen in Figur 5b;

Figur 6

eine Draufsicht einer ersten Ausführungsform der Einlage gemäß der Erfindung in einem aus Querriegeln und Längsriegeln gebildeten Rahmen eines Türblattes, wobei die Einlage hier in der Längsausrichtung eingebracht ist;

Figur 7

eine weitere Draufsicht einer zweiten Ausführungsform der Einlage gemäß der Erfindung, wobei in dem Rahmen des Türblattes die Einlage in Querausrichtung in dem Rahmen eingebracht ist;

Figur 8

eine Einzelansicht der Einlage im ausgezogenen Zustand;

Figur 9

eine weitere Einzelansicht der Einlage im zusammengelegten Zustand;

Figur 10

eine geschnittene Teilansicht eines Längsriegels in Schwalbenschwanzverbindung (a) mit einem Profilelement der Einlage; und eine geschnittene Teilansicht eines Längsriegels in Nutfederverbindung (b) mit einem Profilelement der Einlage

Figur 11

eine Seitenansicht eines Profilelementes mit Zapfen an den Stirnseiten.

Figur 12

eine Draufsicht auf eine Fertigungsstraße zur Herstellung des kalibrierten Türblattskelettes;

Figur 13

eine weitere Draufsicht auf die Fertigungsstraße zur Beschichtung des kalibrierten Türblattskelettes:

An embodiment of the invention is shown purely schematically in the drawings and will be described in more detail below. It shows

FIG. 1a / b

perspective view in Fig. 1a and in Fig. 1b the skeleton created from longitudinal and transverse profiles in two versions;

FIG. 2

an end view of the glue bands on one of the cover plates;

FIG. 3

a side view in the region of the strike plate with lock pocket;

FIG. 4

a perspective view of the integration of an inner longitudinal profile element;

FIG. 5a / b

a front view of a composite door leaf, with doubled cross profile elements in FIG. 5a and with three transverse profile elements in FIG. 5b ;

FIG. 6

a plan view of a first embodiment of the insert according to the invention in a formed of cross bars and longitudinal bars frame of a door leaf, wherein the insert is introduced here in the longitudinal direction;

FIG. 7

a further plan view of a second embodiment of the insert according to the invention, wherein in the frame of the door leaf, the insert is introduced in transverse alignment in the frame;

FIG. 8

a single view of the insert in the extended state;

FIG. 9

another single view of the insert in the collapsed state;

FIG. 10

a sectional partial view of a longitudinal bar in dovetail joint (a) with a profile element of the insert; and a partial sectional view of a longitudinal bar in Nutfederverbindung (b) with a profile element of the insert

FIG. 11

a side view of a profile element with pins on the end faces.

FIG. 12

a plan view of a production line for producing the calibrated door leaf skeleton;

FIG. 13

another plan view of the production line for coating the calibrated door leaf skeleton:

The FIGS. 1a and 1b show representations of the inventive method for producing a door and in particular a door leaf 1 with an insert 2 for insulation and / or stabilization, wherein the door panel 1 is coated with door cover panels 3. According to the method of the invention are in a first step, shown in the FIG. 1a , Parallel arranged transverse profile elements 4 placed at a distance, in each case at the end of the profile elements 4 respectively longitudinally arranged profile elements 5 are pressed and connected to the ends of the transverse profile elements 4, so that a skeleton 6 results. It goes without saying that also an arrangement according to a second embodiment Fig. 1b of connected at a distance longitudinal profile elements 5 with each top and bottom end arranged transverse profile elements 4 can produce a skeleton 6. The skeleton 6 thus produced is then ground to size in a second step, so that the front and the back of the skeleton 6 have flat surfaces. Optionally, the interstices in the skeleton 6 can be filled with an insert 2 before grinding.

The skeleton 6 is then conveyed through a glue applicator, so that the front and the back of the skeleton 6 are wetted with glue or glue for mounting the cover plates 3, as shown in FIG FIG. 2 is shown. This method requires no press, as was the case in the prior art. The adhesive connection is made by means of the adhesive below room temperature without the need for a separate pressure or pressing device. Here, the cover plates 3, for example, consist of non-woven or paper. On the surfaces of the cover plates 3 then glue strips 8 are applied, as these in the FIG. 2 are shown in the front view. On the door panel 1 thus created are finally applied decors 7, which are not shown here. Like in the FIG. 2 can be seen, four glue strips 8 are provided here, with three or two glue strips are sufficient to attach here the decoration application on the surface.

To connect the transverse profile elements 4 4 pins 9 are milled at the ends of the transverse profile elements, as this particular in the FIGS. 3 and 4 can be seen, which can be inserted into milled grooves 10 on the longitudinally disposed profile elements 5. Due to this tongue and groove connection between the longitudinal and transverse profile elements 4, 5, there is also the possibility that the transverse profile elements 4 can be displaced in the groove 10 of the longitudinal profile element 5, so that correspondingly alignment of the transverse profile elements 4 in the skeleton 6 can be made.

The FIG. 3 shows the integration of a lock with strike plate 11 in a lock pocket, on which arranged opposite the pivot joint longitudinal profile element 5, in which case a so-called inner longitudinal profile element 12 is attached to one of the longitudinal profile elements 5. In particular from the FIG. 4 It can be seen that the inner longitudinal profile element 12 is inserted into the groove 10, wherein on one side of the inner longitudinal profile 12 also a pin 9 and on the opposite side a groove 10 is provided so that then engage in the groove 10 corresponding to the transverse profile element 4 can. On the basis of this design, a reinforcement is created, in particular in the area of the lock pocket, which in particular has the sufficient material to engage therein a strike plate 11 with the lock.

According to a particularly advantageous embodiment of the invention, shown in the FIG. 5a and in the FIG. 5b , The longitudinal profile elements 5 can be made of sub-profile elements 5.1 and 5.2 plugged into one another, so that the door or the door leaf 1 is halved by its transport volume. The FIG. 5a shows in particular in the area of the lock pocket a doubling of the transverse profile elements 4, wherein the FIG. 5b a tripling of the transverse profile elements 4 in this area shows. For connection of the partial profile elements 5.1 and 5.2, a tongue and groove connection is provided which, like the mutually parallel transverse profile elements 4 are firmly connected to a glue or an adhesive.

The FIGS. 6 and 7 each shows in a schematic representation of an open door leaf 1 with an insert 2. The door leaf 1 with the insert 2 in this case comprises a longitudinal bars 5 and cross bars 4 formed frame 19. In the frame 19 is made of different material for insulation or stabilization deposit 2 arranged. The frame 19 with the insert 2 is then provided on both sides with door cover plates 3 to form the door leaf 1. Indicated here in the plan view, only one door cover sheet 3, which lies on the back of the door presentation.

Like from the FIGS. 6 and 7 can be seen in the synopsis, the insert 2 consists of a flexibly held composite 20 of profile elements 21. The profile elements 21 are connected to one another with stretchable elements 22. The profile elements 21 in this case preferably consist of wooden strips or wooden rods. The flexibly connected profile elements 21 are aligned in the frame 19 formed by longitudinal and transverse bars 4 4 in the longitudinal direction to the door leaf level, shown in the FIG. 6 , or in transverse orientation to the door leaf level, shown in the FIG. 7 , usable. In the synopsis of FIGS. 6 and 7 It can be seen that with the so-called. Transverse alignment to the door leaf level, shown in the FIG. 7 , the flexible insert 2 here causes a much more stable composite effect, since the parallel horizontal profile elements 21 here extend over the entire surface of the door panel 1. The use, whether transverse or longitudinal orientation depends primarily on how high the load factor of the door panel 1 should be interpreted.

In a further development, the profile elements 21 are connected to one another, for example with a structure 23 formed from honeycomb. In this case, the honeycomb structure 23 is formed extendable or collapsible, as in particular in the FIGS. 8 and 9 is clearly visible. In the FIG. 8 the honeycomb structure 23 is shown in the extended situation, wherein in the FIG. 9 the honeycomb structure 23 is shown in the collapsed situation. From this it can be seen that, especially in the collapsed situation, the insert 2 is very small in construction because it ultimately unfolds its surface stabilization effect in the solid situation. Here, the honeycomb structure 23 is preferably made of paper or paperboard, wherein the insert may also consist of plate-like components.

Like from the FIGS. 6 to 9 can be seen, the honeycomb strips 23.1 are preferably attached to each end of the profile elements 21. This results in a concertina-like insert 2, which can be pulled out tilt-safe in the frame 19 of the door panel 1. As in particular from the FIGS. 6 and 7 can be seen, arise between the honeycomb strip 23.1 in the extended state so-called. Hollow spaces, in which case they can be filled with filler, which in this case may for example consist of paper or wool or other materials. It is also conceivable that these cavities can also be provided with honeycomb stripes, so that the insert 2 consisting of profile element 21 and honeycomb strip 23.1, the entire cavity surface of the door panel 1 lines or fills.

The invention also relates in the same way to the insert 2 in an insulated embodiment intended for a door leaf 1. The insert 2 in this case consists of a flexibly held composite 20 with profile elements 21, wherein the profile elements 21 are interconnected with the elements 22. The profile elements 21 are preferably made of wooden strips, wooden bars, wooden rods. In a further development, the flexibly connected profile elements 21 can be inserted into the frame 19 of the door leaf 1 formed by longitudinal and transverse bars 4 in the longitudinal direction or in the transverse orientation relative to the door leaf level. The profile elements 21 are connected to each other with a honeycomb structure 23, wherein the honeycomb structure 23 is formed extendable and collapsible. Here, the honeycomb structure 23 is preferably made of paper, which are manufactured in strip form 23.1.

According to a particularly advantageous embodiment of the invention, shown in the FIGS. 10a, b and 11 , The profile elements 21 are end provided with pins 9 to form a tongue and groove connection FIG. 10b or a dovetail connection FIG. 10a It is self-evident that the illustrated tongue and groove connection can be correspondingly oriented in the opposite direction.

It goes without saying that it is now possible to easily and easily attach or thread the flexibly held insert 2 to the grooved longitudinal bars 5, wherein the insert 2 can then be pulled apart along the longitudinal latch 5 in the threaded state. In this case, the profile elements 21 can then be firmly connected to the longitudinal bars 5, so that the insert 2 forms the skeleton 6 of the door leaf 1, which ultimately gives the door a high stability. To complete the door leaf, it then only requires that the top and bottom of the skeleton 6 are coated. Of course, a skeleton 6 can be created with grooved crossbars 4, in which case the profile elements 21 would be arranged vertically in the door leaf 1.

So that there is no dynamic pressure in the interior of the insert 2, the profile elements 21 are provided on the top and / or bottom with ventilation slots 24, which allow a natural internal ventilation of the door 1, shown in the FIG. 11 ,

The FIG. 12 shows in plan view an assembly line for the production of the door leaf according to the invention 1. As shown in FIG. 12 can be seen, first takes place by means of grippers 26 from a warehouse, the removal of the insert 2, which is in a plate-like shape. The plate 2 is then pushed onto a milling or saw table 27, so that the insert 2 is then divided into equal stress-free parts. In the milled gap areas 28, which were generated by the milling 29, the cross bar 4 are inserted from a magazine, in each case also corresponding end crossbar 4 are recognized. In a further step, a milling 30 is then made on the longitudinal sides, which mills out in particular the pin shape in the long sides. Thereafter, the milling 31 of the longitudinal bar 5, which are provided here with a groove 10. Then in a further station 32, the longitudinal bars 5 are pressed with their groove shape on the created pin shape, then in a further station 33 accordingly a reprint can take place, so that in this way the skeleton 6 is created with the deposits 2.

Then we pushed the prefabricated door leaf 1 to a transfer station 34, which, after passing through the transition station 34, a grinding device 35 is subjected. Here, a calibration is first made from below, with roll grinder or roller grinder grind the door leaf 1 exactly to measure. Thereafter, the grinding takes place from the top, so that then also the door panel 1 is calibrated at the top. The thus finished door leaf 1 is then spent in a magazine 36.

The magazine 36 can then according to another station 37, as this example in the FIG. 13 is shown, where the according to the FIG. 12 finished door leaf blank is coated. There will be then applied in a spray 38, the adhesive, and applied in a coating station 39, the decor 7. Subsequently, pressure rollers 40 can press the applied decor 7, so that a uniform surface contact of the decor 7 is given before the finished door leaf 1 is stored again in a magazine 36.

LIST OF REFERENCE NUMBERS

01

door leaf

02

inlay

03

Door cover plates

04

Cross profile elements / cross bar

05

Longitudinal profile elements / longitudinal bars
5.1 partial profile element
5.2 partial profile element

06

skeleton

07

decors

08

Glue lines / Tapes

09

spigot

10

groove

11

striking plate

12

Internal longitudinal profile element

13

frame element

14

L-shaped profile

15

L-shaped profile

16

masonry

17

doorstop

18

gap

19

frame

20

composite

21

profile element

22

element

23

honeycomb structure
23.1 honeycomb stripes

24

louvers

25

production line

26

grab

27

milling table

28

gap regions

29

milling machine

30

Milling cones

31

Milling groove

32

station

33

Further station

34

Transfer station

35

grinding device

36

magazine

37

station

38

spraying

39

coating station

40

pressure rollers

41

magazine

Claims (16)

Method for producing a door, in particular a door leaf (1), with an insert (2) for insulation and / or stabilization, the door leaf (1) being coated with door cover plates (3),
characterized,
that in a first step, a plurality of parallel arranged transverse or longitudinal profile elements (4, 5) between two longitudinally or transversely arranged profile elements (5, 4) are attached to form a skeleton (6), in which optionally an insert (2) for insulation and / or stabilization can be introduced, and in which case the created skeleton (6) is calibrated in a second step to measure, in a third step, the door cover plates (3) are applied. Method according to claim 1,
characterized,
that the skeleton (6) before application of the door cover plates (3) by a glue or adhesive applicator is promoted. Method according to claim 2,
characterized,
that on the surfaces of the cover plates (3) by means of applied glue or adhesive (8) decorative applications (7) are applied in a further step. Method according to claim 1,
characterized,
that for connecting the transverse or longitudinal profile elements (4, 5) at the ends of pins (9) are milled, which in milled grooves (10) on the longitudinally or transversely disposed profile elements (4, 5) are inserted. Method according to claim 3,
characterized,
in order to incorporate a closing plate (11) with lock in a lock pocket, a further inner longitudinal profile element (12) is introduced on the one of the longitudinal profile elements (5). Method according to claims 1 to 5,
characterized,
in that the longitudinal profile elements (5) consist of sub-profile elements (5.1) and (5.2) which can be plugged into one another. Door leaf (1) with an insert (2) comprising a frame (19) formed by longitudinal bars (5) and transverse bars (4), in which the insert (2) consisting of different material for insulation and / or stabilization is arranged, and wherein the frame (19) with the insert (2) for forming the door leaf (1) is provided on both sides with door cover plates (3),
characterized,
that the insert (2) made of a flexible composite held (20) of profile elements (21). Door leaf (1) according to claim 2,
characterized,
that the profile elements (21) preferably consist of wooden strips or wooden rods. Door leaf (1) according to claim 7 and 8,
characterized,
in that the flexibly connected profile elements (21) can be inserted in transverse orientation relative to the door leaf plane in longitudinal members (19) formed by longitudinal bars (5) or can be threaded in transversal orientation on the longitudinal bars (5). Door leaf (1) according to claim 7 to 9,
characterized,
that the flexibly connected profile elements (21) in of cross bars (4) formed frame parts (19) in the longitudinal direction to the door leaf level or between the cross bar (4) are threadable. Door leaf (1) according to claim 7 to 10,
characterized,
that the profile elements (21) end journal (9) to form a tongue and groove connection with the longitudinal bars (5) or the crossbars (4). Door leaf (1) according to claim 7 to 11,
characterized,
in that the profile elements (21) have ends (9) for forming a dovetail joint with the longitudinal bars (5) or the transverse bars (4). Door leaf (1) according to claim 7,
characterized,
in that the profile elements (21) have ventilation slots (24) on the upper side and / or the lower side. Door leaf (1) according to claim 7,
characterized,
in that the profile elements (21) are interconnected with extensibly held elements (22) of a honeycomb structure or plate-like inserts. Door leaf (1) according to claim 7,
characterized,
that the honeycomb structure (23) preferably consists of paper or paperboard. Device and / or production line for producing a door leaf (1) according to the method,
characterized,
that in a first station, the plate-shaped insert (2) in parts with splitting strip (28) is separated stress-free, in which in a further station, the cross bar (4) are inserted, the end two additional cross bar (4) are recognized, said in the third station is a milling of the long sides in pin shape, then in the fourth station, the grooved in the form of longitudinal bars (5) are recognized in the fifth station is then a calibration of the bottom and top of the door panel (1) before in another station the decors (7) are applied.

Images