EP1664473B1 - Process for producing a hollow door element for a door leaf composed of a hollow element and a cover element - Google Patents
Process for producing a hollow door element for a door leaf composed of a hollow element and a cover element Download PDFInfo
- Publication number
- EP1664473B1 EP1664473B1 EP05755169.9A EP05755169A EP1664473B1 EP 1664473 B1 EP1664473 B1 EP 1664473B1 EP 05755169 A EP05755169 A EP 05755169A EP 1664473 B1 EP1664473 B1 EP 1664473B1
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- EP
- European Patent Office
- Prior art keywords
- edge
- door leaf
- process according
- corner
- edge strip
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- 238000000034 method Methods 0.000 title claims description 24
- 238000003466 welding Methods 0.000 claims description 31
- 239000002184 metal Substances 0.000 claims description 18
- 238000005452 bending Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000004049 embossing Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007688 edging Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/96—Corner joints or edge joints for windows, doors, or the like frames or wings
- E06B3/9604—Welded or soldered joints
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/70—Door leaves
- E06B3/82—Flush doors, i.e. with completely flat surface
- E06B3/827—Flush doors, i.e. with completely flat surface of metal without an internal frame, e.g. with exterior panels substantially of metal
Definitions
- the invention relates to a method for producing a door latch of a door leaf formed from box and ceiling according to the preamble of claim 1 appended hereto.
- Door leaves formed from metal are often, as is also known from some DIN regulations, made of a box sheet, which is filled with a suitable for the respective purposes of the door filling and is closed with a cover plate.
- the box sheet or often also simply called box then forms a first broad side of the door leaf and - depending on the presence or size of a Mosfalzes completely or partially the four narrow sides or end faces of the later door leaf.
- the box actually has a box shape consisting of the bottom forming the door leaf broad side and the side walls forming the door leaf narrow sides.
- the GB 2 109 277 A discloses a method of manufacturing a door leaf box of a door panel formed of box and lid. To form an upper end side, a first edge strip and a second edge strip of a metal sheet is bent over to form a lateral narrow side of the door leaf. Subsequently, opposite side edges of the edge strips are welded in a corner region by means of an inert gas welding process.
- the US 3,440,722 a method for producing a door leaf box of a door leaf formed from box and cover, in which a metal sheet is bent such that a first edge strip an upper end side of the door leaf and a second edge strip form a narrow side of the door leaf. Subsequently, a welding of the two edge strips along a contact edge. The welding of the side edges takes place with the help of in Fig. 1 pictured device that carries on the one hand the door leaf and the other a welding gun or leads.
- DE 24 02 110 A a method for resistance welding a metal plate to a metal part to which welding projections are produced by an embossing process and / or attaching separate welding bodies to the metal part.
- the projecting embossments are produced by squeezing.
- hat-shaped formations can be made by a deep embossing operation of a metal strip.
- Fig. 1 and 2 illustrate a previously common manufacturing method for the manufacture of the above-mentioned box panel.
- Fig. 1 is a corner of the box plate in partially cutaway view and in Fig. 2 is the corner of a metal sheet, from which this corner is formed represented.
- the box panel is usually formed from a single metal sheet by bending edge strips and welding the edge strips in the corner region of the door leaf box together.
- Fig. 1 shows the finished corner joint and
- Fig. 2 shows the metal sheet just before bending.
- Fig. 1 illustrated corner portion 8 of a (door leaf) box 10 is formed by a bottom plate 12, which forms a door leaf broad side 14, and by two lateral edgings or edge strips 16 and 18, which respectively form narrow sides 20 and 22 of the box.
- a first edge strip 16 forms a short narrow side, d. H. an upper or lower end face 20.
- the second edge strip 18 forms a narrow side on the long side of a door leaf, d. H. Here, one of the two lateral narrow sides 22.
- the two edge strips 16 and 18 thus according to their Alkantung perpendicular to each other.
- the second edge strip 18 has in the example shown at its outermost edge region 24, a further fold 26 to which the cover sheet, not shown here, in a known manner can be fastened.
- the two edge strips are connected to form a fixed corner joint via a welded joint 28.
- the known weld 28 is formed by one of the two edge strips, here of the first edge strip 16, parallel to the other, a second edge strip 18, extending bent welding tabs 30, which is welded to the second edge strip 18 with two 2 welding bosses 32 ,
- the two edge strips 16, 18 are connected to the welding flaps 30 by notching a correspondingly shaped corner region 33 during the punching of a sheet metal Rohform box plate 34-, as shown in FIG Fig. 2 shown is formed.
- the procedure is thus that the edge strips forming the end faces or narrow sides 20, 22 form 16, 18 after making the edge strips 16 and 18 as in FIG Fig. 2 shown to be folded inwards by 90 °.
- the end face 20 is connected to the lateral narrow side 22 via the welding flap connection 28.
- the welding tabs 30, in turn, must be folded over by 90 ° before the actual bending of the first edge strip 16, ie be raised.
- the welding flap 30 is usually over-arched by special machines (bent over more than 90 °) so that it does not hit the second edge strip 18 of the box plate 34 in the subsequent inward edges of the first edge strip 16.
- such a corner joint of two highly curved edge strips 16 can also be carried out by a separate welding corner angle, which of course must be fed separately beforehand.
- the object of the invention is to improve a method for producing a door leaf box that the door leaf box can be made comparatively easy and inexpensive while ensuring sufficient rigidity, especially in the corner regions.
- the previously customary welding flaps 30 are dispensed with. Instead, the abutting edge portions of the two edge strips are welded directly to each other in abutment.
- the corner regions of the box plate can be much easier, namely notched substantially at right angles to provide the edge strips to be bent over the box panel.
- the resulting substantially rectangular shape of the edge strips is significantly easier to handle industrially.
- the door leaf box produced according to the invention are also for fire doors or other doors that are exposed to special mechanical stress, can be used. For this reason, it has been provided to provide a secure welded joint, the two weld humps and the welding tabs. The weld bumps 32 had to be introduced into the welding flaps 30 in an additional step.
- a secure welded joint which also withstands the requirements of fire doors and / or other heavy duty exposed doors for a long time, created by one of the two edge strips at that side edge, with the side edge of the second edge strip in the corner Shock comes into contact, is provided with welding humps.
- the weld bumps are preferably formed so that they over the side edge, d. H. protrude in the direction of the other bent edge strip.
- the Sch dibuckel are equal to the shaping of the edge strips on the side edge provided with and shaped.
- the weld bumps may be formed simply by forming a portion of the side edge in a wave form. This can be done in a particularly advantageous manner by the fact that the waveform or the otherwise shaped projections on the side edge are unlatched at the same time when notching the corner region of the still unbent box panel.
- the invention eliminates the additional steps discussed above with respect to the prior art.
- the corner joint is only after the Bending the one opposite narrow side in the connecting region to the other opposite narrow sides, preferably butt welded in T-joint.
- weld bumps are punched directly over the usual corner notches in the appropriate size.
- the size of the weld hump depends on the material thickness and is generally based on valid DIN standards for relevant connections.
- variableably adjustable bending tools can be constructed much easier in flexible bending machines. Due to the simple shape to be bent also a positioning of the bending tools is possible, so that special dimensions can be made very easily. The bending tools can be easily positioned in the corner of the door leaf box.
- the in Fig. 3 illustrated corner region 8 of the box 40 is characterized in comparison to the in Fig. 1 represented corner region 8 of the box 10 according to the prior art, characterized in that the corner joint is not formed via a welding flaps 30 with welding boss 32, but by a projection weld a side edge 42 of the substantially rectangular shape without the welding flaps first edge strip 16.
- the corner notch 33 in the box plate is substantially rectangular.
- the turned to the second edge strip 18 added Side edge 44 of the short narrow side 20 or front side forming first edge strip 16 is not formed with a welding cloth, but with a wavy-shaped portion 46.
- the wave form results in four weld bumps 48 projecting beyond the remaining edge region 50 by a specific amount of 0.5-2 mm, in this example 1 mm.
- FIG. 4 The shape shown is achieved simply by appropriate design of the notching tool or punching tool (not shown) in a step in the punching of the box plate 34. In the production of the box 10 is then proceeded so that first the first edge strip 16 is bent with the provided with weld hump 48 side edge and then the second edge dispute 18 is bent and welded.
- Fig. 5 shows the obtained welded joint from above and Fig. 6 shows the burnout of the weld bumps 48.
- About half (0.5mm) of the board (1mm) of the weld bumps 48 were “burned off” in this example and used to form the weld joint.
- the protruding portions of the weld bumps 48 are thus firmly welded to the second edge strip.
- the second edge strip 18 is still a piece on the welded connection with the first edge strip 16 out.
- a recess for seals BrandaufJeumer, u. s. w. achieved.
- the strength of the welded joint is increased compared to a connection of two side edges.
- the reference numeral 52 records the T-joint or impact area at which the first edge strip 16 is welded via the weld boss 48 to the second edge strip is.
- the reference numeral 33 shows the substantially rectangular Eckausklinkung of Fig. 4 compared to the approximately L-shaped notch 33 after Fig. 3 ,
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Securing Of Glass Panes Or The Like (AREA)
Description
Die Erfindung betrifft ein Verfahren zur Herstellung eines Türkastens eines aus Kasten und Decken gebildeten Türblattes nach dem Oberbegriff des hier beigefügten Anspruches 1.The invention relates to a method for producing a door latch of a door leaf formed from box and ceiling according to the preamble of
Aus Metall gebildete Türblätter werden vielfach, wie dies auch aus einigen DIN-Vorschriften bekannt ist, aus einem Kastenblech hergestellt, das mit einer für die jeweiligen Einsatzzwecke der Tür geeigneten Füllung befüllt wird und mit einem Deckelblech verschlossen wird.Door leaves formed from metal are often, as is also known from some DIN regulations, made of a box sheet, which is filled with a suitable for the respective purposes of the door filling and is closed with a cover plate.
Das Kastenblech oder vielfach auch einfach Kasten genannt, bildet dann eine erste Breitseite des Türblattes und - je nach Vorhandensein oder Größe eines Türfalzes ganz oder teilweise die vier Schmalseiten oder Stirnseiten des späteren Türblattes.The box sheet or often also simply called box, then forms a first broad side of the door leaf and - depending on the presence or size of a Türfalzes completely or partially the four narrow sides or end faces of the later door leaf.
Der Kasten hat demgemäss tatsächlich eine Kastenform, die aus dem die Türblattbreitseite bildenden Boden und den die Torblattschmalseiten bildenden Seitenwänden besteht.Accordingly, the box actually has a box shape consisting of the bottom forming the door leaf broad side and the side walls forming the door leaf narrow sides.
Die
Ferner offenbart die
Schließlich offenbart die
Die
Das Kastenblech wird üblicherweise aus einem einzelnen Metallblech durch Umbiegen von Randstreifen und Verschweißen der Randstreifen im Eckbereich des Türblattkastens aneinander gebildet.
Der in
Ein erster Randstreifen 16 bildet dabei eine kurze Schmalseite, d. h. eine obere oder untere Stirnseite 20. Der zweite Randstreifen 18 bildet eine Schmalseite auf der langen Seite eines Türblattes, d. h. hier eine der beiden seitlichen Schmalseiten 22. Die beiden Randstreifen 16 und 18 verlaufen demnach nach ihrer Alkantung rechtwinklig zueinander. Der zweite Randstreifen 18 hat in dem gezeigten Beispiel noch an seinem äußersten Randbereich 24 eine weitere Abkantung 26, an dem das hier nicht dargestellte Deckelblech in bekannter Art und Weise befestigbar ist.A
Die beiden Randstreifen sind zum Bilden einer festen Eckverbindung über eine Schweißverbindung 28 miteinander verbunden. Die bekannte Schweißverbindung 28 wird gebildet durch einen von einem der beiden Randstreifen, hier von dem ersten Randstreifen 16, parallel zu dem anderen, einer dem zweiten Randstreifen 18, verlaufend umgebogenen Schweißlappen 30, der mit zwei 2 Schweißbuckeln 32 an dem zweiten Randstreifen 18 angeschweißt wird.The two edge strips are connected to form a fixed corner joint via a
Die beiden Randstreifen 16, 18 werden mit dem Schweißlappen 30 durch Ausklinken eines entsprechend geformten Eckbereiches 33 beim Ausstanzen einer Metallblech-Rohform-Kastenblech 34-, wie sie in
Bei der bisher üblichen Herstellung eines Türblatt-Kastens 10 wird also derart vorgegangen, dass die die Stirnseiten oder Schmalseiten 20, 22 bildenden Randstreifen 16, 18 nach dem Herstellen der Randstreifen 16 und 18 wie in
In anderen hier nicht näher gezeigten Verfahren kann eine solche Eckverbindung von zwei hoch gebogenen Randstreifen 16 auch durch einen separaten Anschweiß-Eckwinkel ausgeführt werden, der natürlich vorher separat zugeführt werde muss.In other methods not shown here, such a corner joint of two highly
Die zuvor geschilderten Verfahren sind interner Stand der Technik, dessen Vorveröffentlichung unklar ist. Die geschilderten bisher eingesetzten Verfahren sind jedenfalls relativ aufwändig und bedürfen spezieller Maschinen.The previously described methods are internal prior art, the prior publication is unclear. The described methods used so far are relatively complex and require special machinery.
Aufgabe der Erfindung ist es, ein Verfahren zur Herstellung eines Türblattkastens dahingehen zu verbessern, dass der Türblattkasten bei Gewährleistung einer ausreichenden Steifheit insbesondere in den Eckbereichen vergleichsweise einfach und kostengünstig hergestellt werden kann.The object of the invention is to improve a method for producing a door leaf box that the door leaf box can be made comparatively easy and inexpensive while ensuring sufficient rigidity, especially in the corner regions.
Diese Aufgabe wird durch ein Herstellverfahren mit den Schritten des beigefügten Anspruches 1 gelöst.This object is achieved by a manufacturing method having the steps of appended
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the dependent claims.
Erfindungsgemäß wird auf die bisher üblichen Schweißlappen 30 verzichtet. Anstelle dessen werden die auf Stoß aneinander liegenden Kantenbereiche der beiden Randstreifen direkt miteinander auf Stoß verschweißt.According to the invention, the previously
Dadurch entfallen die zusätzlichen Biegemaßnahmen, die aufgrund der Schweißlappen 30 bisher notwendig waren. Die Eckbereiche des Kastenbleches können wesentlich einfacher, nämlich im wesentlichen rechtwinklig ausgeklinkt werden, um die umzubiegenden Randstreifen an dem Kastenblech zur Verfügung zu stellen. Die sich ergebende im wesentlichen rechteckige Form der Randstreifen ist industriell bedeutend einfacher handhabbar.This eliminates the additional bending measures that were previously necessary due to the
Nun sollen die erfindungsgemäß hergestellten Türblattkasten auch für Feuerschutztüren oder sonstige Türen, die besonderen mechanischen Belastungen ausgesetzt sind, eingesetzt werden können. Aus diesem Grund hat man bisher zum Vorsehen einer sicheren Schweißverbindung die beiden Schweißbuckel und den Schweißlappen vorgesehen. Die Schweißbuckel 32 mussten in einem zusätzlichen Schritt in den Schweißlappen 30 eingebracht werden.Now, the door leaf box produced according to the invention are also for fire doors or other doors that are exposed to special mechanical stress, can be used. For this reason, it has been provided to provide a secure welded joint, the two weld humps and the welding tabs. The
Gemäß der Erfindung wird eine sichere Schweißverbindung, die auch den Anforderungen an Feuerschutztüren und/oder sonstige, starken Belastungen ausgesetzte Türen über lange Zeit standhält, geschaffen, indem einer der beiden Randstreifen an derjenigen Seitenkante, die mit der Seitenkante des zweiten Randstreifens in der Ecke auf Stoß in Anlage kommt, mit Schweißbuckeln versehen wird. Die Schweißbuckel sind vorzugsweise derart ausgebildet, dass sie über die Seitenkante, d. h. in Richtung des anderen umgebogenen Randstreifens vorstehen. Die Schweißbuckel werden gleich bei der Ausformung der Randstreifen an der Seitenkante gleich mit vorgesehen und ausgeformt. Die Schweißbuckel können zum Beispiel einfach dadurch gebildet werden, dass ein Bereich der Seitenkante wellenförmig ausgebildet wird. Dies kann in besonders vorteilhafter Weise dadurch geschehen, dass die Wellenform oder die sonst wie geformten Vorsprünge an der Seitenkante gleich beim Ausklinken des Eckbereiches des noch ungebogenen Kastenbleches mit ausgeklinkt werden.According to the invention, a secure welded joint, which also withstands the requirements of fire doors and / or other heavy duty exposed doors for a long time, created by one of the two edge strips at that side edge, with the side edge of the second edge strip in the corner Shock comes into contact, is provided with welding humps. The weld bumps are preferably formed so that they over the side edge, d. H. protrude in the direction of the other bent edge strip. The Schweißbuckel are equal to the shaping of the edge strips on the side edge provided with and shaped. For example, the weld bumps may be formed simply by forming a portion of the side edge in a wave form. This can be done in a particularly advantageous manner by the fact that the waveform or the otherwise shaped projections on the side edge are unlatched at the same time when notching the corner region of the still unbent box panel.
Bei der Erfindung entfallen die vorstehend in Bezug auf den Stand der Technik erläuterten zusätzlichen Arbeitsschritte. Die Eckverbindung wird lediglich nach dem Biegen der einen sich gegenüberliegenden Schmalseite im Verbindungsbereich zu den anderen sich gegenüberliegenden Schmalseiten, vorzugsweise im T-Stoß stumpf geschweißt.The invention eliminates the additional steps discussed above with respect to the prior art. The corner joint is only after the Bending the one opposite narrow side in the connecting region to the other opposite narrow sides, preferably butt welded in T-joint.
Über eine Buckelschweißverbindung wird eine sehr feste Verbindung erreicht. Die Schweißbuckel werden direkt über die üblicherweise vorzusehenden Eckausklinkungen in der entsprechenden Größe mitangestanzt. Die Größe der Schweißbuckel richtet sich dabei nach der Materialstärke und lehnt sich im allgemeinen an gültige DIN-Normen für einschlägige Verbindungen an.About a projection welding connection a very strong connection is achieved. The weld bumps are punched directly over the usual corner notches in the appropriate size. The size of the weld hump depends on the material thickness and is generally based on valid DIN standards for relevant connections.
Im Rahmen von bereits durchgeführten Schweißversuchen konnte nachgewiesen werden, dass die Festigkeitswerte für das erfindungsgemäße Schweißverfahren denjenigen der zuvor zum Stand der Technik erläuterten Schweißverfahren vergleichbar sind.In the context of welding tests already carried out, it could be demonstrated that the strength values for the welding method according to the invention are comparable to those of the welding methods explained above with reference to the prior art.
Die Fertigung wird bei dem erfindungsgemäßen Verfahren insofern wesentlich erleichtert, dass variabel verstellbare Biegewerkzeuge in flexiblen Biegemaschinen wesentlich einfacher aufgebaut werden können. Durch die einfache umzubiegende Form wird auch eine Positionierbarkeit der Biegewerkzeuge ermöglicht, so dass Sondermaße sehr einfach gefertigt werden können. Die Biegewerkzeuge können ohne weiteres bis in den Eckbereich des Türblattkastens positioniert werden.The production is greatly facilitated in the method according to the invention in that variably adjustable bending tools can be constructed much easier in flexible bending machines. Due to the simple shape to be bent also a positioning of the bending tools is possible, so that special dimensions can be made very easily. The bending tools can be easily positioned in the corner of the door leaf box.
Ein "Luftbiegen", das bei dem zuvor üblichen Verfahren notwendig war und Ursache für einige Qualitätsmängel war, entfällt.An "air bending", which was necessary in the usual procedure and was the cause of some quality defects, is eliminated.
Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der beigefügten Zeichnungen näher erläutert. Darin zeigt:
- Fig. 1
- eine perspektivische, teilweise weggeschnittene Darstellung einer Eckverbindung eines Türblatt-Kastens nach dem Stand der Technik:
- Fig. 2
- eine Draufsicht auf einen Eckbereich eines Kastenbleches nach dem Stand der Technik, aus der die in
Fig. 1 gezeigte Ecke gebildet wird; - Fig. 3
- eine Ansicht vergleichbar derjenigen von
Fig. 1 auf einen Eckbereich einer Ausführungsform eines erfindungsgemäß hergestellten Türblatt-Kastens; - Fig. 4
- eine
Fig. 2 entsprechende Draufsicht auf einen Eckbereich eines Kastenbleches, aus dem die inFig. 3 dargestellte Ecke gebildet wird; - Fig. 5
- eine Draufsicht auf den in
Fig. 3 dargestellten Eckbereich von oben; und - Fig. 6
- eine Detailansicht des Details X von
Fig. 5 .
- Fig. 1
- a perspective, partially cut away view of a corner joint of a door leaf box according to the prior art:
- Fig. 2
- a plan view of a corner region of a box panel according to the prior art, from the in
Fig. 1 formed corner is formed; - Fig. 3
- a view comparable to that of
Fig. 1 to a corner portion of an embodiment of a door leaf box made according to the invention; - Fig. 4
- a
Fig. 2 corresponding plan view of a corner region of a box plate from which the inFig. 3 formed corner is formed; - Fig. 5
- a top view of the in
Fig. 3 illustrated corner area from above; and - Fig. 6
- a detailed view of the detail X of
Fig. 5 ,
Eine Ausführungsform des erfindungsgemäßen Verfahrens sowie des damit hergestellten Türblatt-Kastens 40 wird im folgenden anhand der Darstellung der
Der in
Wie in
Die in
Bei der dargestellten Ausführungsform werden nicht die beiden Seitenkanten der Randstreifen direkt miteinander verschweißt, vielmehr steht der zweite Randstreifen 18 noch ein Stück über die Schweißverbindung mit dem ersten Randstreifen 16 hervor. Dadurch wird an der Stirnseite 20 des späteren Türblattes eine Vertiefung für Dichtungen, Brandaufschäumer, u. s. w. erzielt. Außerdem wird so die Festigkeit der Schweißverbindung gegenüber einer Verbindung von zwei Seitenkanten erhöht.In the illustrated embodiment, not the two side edges of the edge strips are welded directly to each other, but the
Wenngleich voranstehend nur einer der vier Eckbereiche 8 beispielhaft beschrieben worden ist, so sollte klar sein, dass alle Eckbereiche des Kastens 40 in entsprechender Weise wie in
Claims (8)
- Process for producing a door leaf case (10) for a door leaf composed of a hollow element (10) and a cover, the process comprising:a) providing a sheet metal (34) and forming a first edge strip (16) and a second edge strip (18) of said sheet metal (34),b) bending said first edge strip (16) for at least partly forming an upper and lower front face (20) of the door leaf,c) bending said second edge strip (18) for at least partly forming a lateral narrow side (22) of the door leaf,d) welding together said two edge strips (16, 18) in a corner region (8) of said case (10),wherein the sequence of steps b) and c) is arbitrary and wherein said two edge strips (16, 18) are directly welded to each other at a joint area (52) where the edge strips (16, 18) join each other diagonally, without the use of straps, characterized in that at least one of the edge strips (16, 18) is formed by stamping, wherein there are formed projection welds (48) simultaneously with the stamping of said edge strip (16, 18) at a to-be-welded lateral edge (44) of one of the edge strips (16, 18), which lateral edge (44) abuts against an other region (18) of the sheet metal (34) after performing steps b) and c).
- Process according to claim 1, characterized in that the projection welds (48) protrude over a remaining edge region (50) of said lateral edge (44).
- Process according to claim 1 or 2, characterized in that the projection welds (48) are formed by the lateral edge (44) being shaped in wavelike manner (46) entirely or partly, when viewed from above.
- Process according to one of the preceding claims, characterized in that the size of the projection welds (48) is selected dependent on the material thickness and/or the thickness of the sheet metal (34).
- Process according to one of the preceding claims, characterized in that in step a) said metal sheet (34) is provided in a manner preformed with the respective edge strips (16, 18) destined for later bending.
- Process according to one of the preceding claims, characterized in that a corner of the preformed sheet metal (34) at which the later welding process according to step d) is performed, is cut out (33) substantially rectangular, for forming edge regions of the two edge strips which lie on top of each other so as to butt in the corner of the door leaf case.
- Process according to one of the preceding claims, characterized in that prior to bending, the edge strips (16, 18) at the sheet metal (34) merely present a substantially rectangular shape.
- Process according to one of the preceding claims, characterized in that in step d), a corner joint is butt-welded in a T-joint manner only in the joining area of the first edge strip (16) to the second edge strip (18).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL05755169T PL1664473T3 (en) | 2004-06-24 | 2005-06-03 | Process for producing a hollow door element for a door leaf composed of a hollow element and a cover element |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004030656A DE102004030656B4 (en) | 2004-06-24 | 2004-06-24 | Method for producing a door latch of a door leaf formed from box and cover |
PCT/DE2005/000999 WO2006000179A1 (en) | 2004-06-24 | 2005-06-03 | Process for producing a hollow door element for a door leaf composed of a hollow element and a cover element |
Publications (2)
Publication Number | Publication Date |
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EP1664473A1 EP1664473A1 (en) | 2006-06-07 |
EP1664473B1 true EP1664473B1 (en) | 2015-08-19 |
Family
ID=34971577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP05755169.9A Active EP1664473B1 (en) | 2004-06-24 | 2005-06-03 | Process for producing a hollow door element for a door leaf composed of a hollow element and a cover element |
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Country | Link |
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EP (1) | EP1664473B1 (en) |
DE (1) | DE102004030656B4 (en) |
ES (1) | ES2553099T3 (en) |
PL (1) | PL1664473T3 (en) |
WO (1) | WO2006000179A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013100514B4 (en) | 2012-11-22 | 2022-06-23 | Hörmann Kg Brandis | DOOR OR GATE ELEMENT MANUFACTURING PROCESS AND DOOR OR GATE ELEMENT |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1972678U (en) * | 1967-09-08 | 1967-11-16 | Reinhard Elsing Fa | DOOR LEAF MADE OF SHEET STEEL. |
DE2219333A1 (en) * | 1972-04-20 | 1973-11-08 | Licentia Gmbh | Crosspiece welding - partic to the front face of a lamp without visible welding marks |
DE2934054A1 (en) * | 1979-08-23 | 1981-03-26 | Favorit Türenwerke GmbH & Co KG, 4154 Tönisvorst | Waterproof door leaf corner sealing - uses slotted filler inserted and clamped against rear filler case walling |
JPS5885083A (en) * | 1981-11-13 | 1983-05-21 | 株式会社東芝 | Manufacture of door of refrigerator |
JPS6033669B2 (en) * | 1983-06-08 | 1985-08-03 | 尭 石川 | Inorganic composite board |
DE29612425U1 (en) * | 1996-05-29 | 1996-11-07 | Novoferm GmbH, 46459 Rees | Sheet steel door |
DE10204638B4 (en) * | 2002-02-05 | 2004-10-21 | Hörmann Kg Brandis | Method of making a sheet metal door leaf |
-
2004
- 2004-06-24 DE DE102004030656A patent/DE102004030656B4/en not_active Expired - Fee Related
-
2005
- 2005-06-03 WO PCT/DE2005/000999 patent/WO2006000179A1/en active Application Filing
- 2005-06-03 PL PL05755169T patent/PL1664473T3/en unknown
- 2005-06-03 ES ES05755169.9T patent/ES2553099T3/en active Active
- 2005-06-03 EP EP05755169.9A patent/EP1664473B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE102004030656A1 (en) | 2006-02-16 |
EP1664473A1 (en) | 2006-06-07 |
WO2006000179A1 (en) | 2006-01-05 |
PL1664473T3 (en) | 2015-12-31 |
DE102004030656B4 (en) | 2013-02-21 |
ES2553099T3 (en) | 2015-12-04 |
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