EP1689539B1 - Method for producing a coupling on a pipe and device for producing said coupling - Google Patents

Method for producing a coupling on a pipe and device for producing said coupling Download PDF

Info

Publication number
EP1689539B1
EP1689539B1 EP04765466A EP04765466A EP1689539B1 EP 1689539 B1 EP1689539 B1 EP 1689539B1 EP 04765466 A EP04765466 A EP 04765466A EP 04765466 A EP04765466 A EP 04765466A EP 1689539 B1 EP1689539 B1 EP 1689539B1
Authority
EP
European Patent Office
Prior art keywords
pipe end
pipe
wall thickness
shaping
cheeks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP04765466A
Other languages
German (de)
French (fr)
Other versions
EP1689539A1 (en
Inventor
Viegner (Jun.), Walter
Walter Bauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MAG IAS GmbH Eislingen
Original Assignee
MAG IAS GmbH Eislingen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MAG IAS GmbH Eislingen filed Critical MAG IAS GmbH Eislingen
Publication of EP1689539A1 publication Critical patent/EP1689539A1/en
Application granted granted Critical
Publication of EP1689539B1 publication Critical patent/EP1689539B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging

Definitions

  • the invention relates to a method for producing a sleeve on a pipe, preferably made of copper or steel or Cu, Ni, Fe alloys, by preferably multi-stage or single-stage expansion of the pipe end with a large diameter jump, wherein in the pipe end axially a widening tool is introduced and an apparatus for producing such a sleeve.
  • the JP 54 009152 A discloses a method for two-stage widening of an end portion of a pipe to provide a right-angled step in the transition area between the flared end portion and the remainder of the pipe.
  • a forming method and a forming device for a pipe goes out of the DE 100 64 376 A1 out.
  • the wall thickness in an end region of the tube is increased without changing its inner diameter at the thickened point.
  • the FR 2129921 describes a method and apparatus for deforming a pipe end. Several inner and outer diameters of different sizes are generated. The expanded portion having the end face is thinner than other portions of the pipe end.
  • the sleeves are made at the pipe ends by preferably stepwise widening of the pipe section.
  • the wall thickness dilutes when expanding the pipe. It has z. B. shown that in a pipe with nominal width> 50 mm and with a wall thickness of 2.7 mm, the wall thickness after a two-stage expansion is only 2.4 mm.
  • the pipe end is usually additionally flared inwards to have behind the bead later in the joining of pipes a sufficient grip for the sealing elements.
  • the fitting is then subjected to the heaviest load, which in the worst case can lead to leaks.
  • the invention is therefore based on the object to propose a method and an apparatus for producing a sleeve on a pipe in which can be dispensed with an increase in the wall thickness of the tubes used.
  • the proposal according to the invention provides, in particular together with the last expansion stage or in a separate working step, to carry out an upsetting operation at the pipe end, wherein the inner diameter is predetermined with the expansion tool.
  • the outer diameter is limited by the compression tool and the outer mold jaw, which surrounds the pipe end during expansion.
  • the compression device consists essentially of a cylindrical tube with an inner annular recess for receiving the expanded pipe end, which is pressed axially against the end face of the pipe end.
  • the inner diameter of the recess and the molding jaws are preferably matched to one another in the region in which the wall thickness should increase, so that the desired wall thickness can be achieved depending on the intended stroke or the relative movement between compression device and mold jaws.
  • This in Fig. 1 illustrated finished tube 1 has the wall thickness d1, which corresponds to the wall thickness of the original pipe material.
  • the tube 1 After a two-stage widening, the tube 1 has a first conical part 5, a first cylindrical part 7 adjacent thereto with a reduced wall thickness d7 corresponding to the extent of widening relative to d1, a second conical part 6, an adjoining second cylindrical part 8 and a second conical part inwardly bent beading edge 9.
  • the second cylindrical member 8 has a Wall thickness d8, which has been increased to the required extent by the upsetting process according to the invention prior to the production of the beading edge 9.
  • the wall thickness d8 should be at least as large as the wall thickness d7. It has even proved favorable to bring the wall thickness d8 up to the wall thickness of d1.
  • the multi-stage expansion tool 2 has already been pressed axially into the pipe end.
  • the shape of the sleeve with the parts 5 to 8 is formed inside by the parts 5 'to 8' of the expansion tool 2 and on the outside by the parts 5 "to 8" of the forming jaw 3.
  • the compression device consisting essentially of a cylindrical tube 4 is pressed with the inner lugs 10 axially against the tube end, wherein the relative movement between mold jaws 3 and 4 upsetting device max. Hub X can have.
  • the compression device 4 For receiving the cylindrical part 8 of the pipe end, the compression device 4 has an annular recess which is formed by the cylindrical part 11 and the projection 10.
  • the required increase in wall thickness by the upsetting process but it may also be beneficial, at the same time by the portion of the cylindrical part 8 which is encompassed by the mold jaws 3 to thicken the compression process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Pipe Accessories (AREA)

Abstract

Production of a coupling on a pipe (1), preferably made from copper, nickel or iron alloys comprises completely or partially compressing the region of the pipe end that is to be or has been expanded using a force acting on the pipe when and/or once the expansion tool (2) has been introduced into the pipe end. The external diameter of the pipe end that is to be processed is delimited by shaping jaws (3) that completely or partially surround the pipe end. An independent claim is also included for a device for producing a coupling on a pipe. Preferred Features: Only the region of the pipe end that is to be or has been expanded is expanded during expansion of the pipe end.

Description

Die Erfindung bezieht sich auf ein Verfahren zur Herstellung einer Muffe an einem Rohr, vorzugsweise aus Kupfer oder Stahl oder Cu-, Ni-, Fe-Legierungen, durch vorzugsweise mehrstufiges oder einstufiges Aufweiten des Rohrendes mit grossem Durchmessersprung, wobei in das Rohrende axial ein Aufweitwerkzeug eingeführt wird und eine Vorrichtung zur Herstellung einer derartigen Muffe.The invention relates to a method for producing a sleeve on a pipe, preferably made of copper or steel or Cu, Ni, Fe alloys, by preferably multi-stage or single-stage expansion of the pipe end with a large diameter jump, wherein in the pipe end axially a widening tool is introduced and an apparatus for producing such a sleeve.

Aus der WO 02/02255 A1 ist ein Verfahren und eine Vorrichtung zur Herstellung eines Pressfittings bekannt, bei dem in das Rohrende durch einen Stauchvorgang eine Sicke eingebracht wird, z.B. für das Einlegen eines O-Rings.From the WO 02/02255 A1 a method and a device for producing a press fitting is known, in which a bead is introduced into the pipe end by an upsetting process, for example for the insertion of an O-ring.

Die JP 54 009152 A offenbart ein Verfahren zur zweistufigen Aufweitung eines Endabschnitts eines Rohres, um eine rechtwinklige Stufe im Übergangsbereich zwischen dem aufgeweiteten Endabschnitt und dem übrigen Rohr zu schaffen.The JP 54 009152 A discloses a method for two-stage widening of an end portion of a pipe to provide a right-angled step in the transition area between the flared end portion and the remainder of the pipe.

Ein Umformverfahren und eine Umformvorrichtung für ein Rohr geht aus der DE 100 64 376 A1 hervor. Dabei wird in einem Verfahren mit mehreren Schritten die Wanddicke in einem Endbereich des Rohres vergrößert ohne dessen Innendurchmesser an der verdickten Stelle zu verändern.A forming method and a forming device for a pipe goes out of the DE 100 64 376 A1 out. In this case, in a method with several steps, the wall thickness in an end region of the tube is increased without changing its inner diameter at the thickened point.

Die FR 2129921 beschreibt ein Verfahren und eine Vorrichtung zur Verformung eines Rohrendes. Dabei werden mehrere Innen- und Außendurchmesser verschiedener Größe erzeugt. Der die Stirnfläche aufweisende aufgeweitete Abschnitt ist dabei dünner als andere Abschnitte des Rohrendes.The FR 2129921 describes a method and apparatus for deforming a pipe end. Several inner and outer diameters of different sizes are generated. The expanded portion having the end face is thinner than other portions of the pipe end.

Bei der Herstellung von Kupfer- bzw. Stahlfittings aus Rohren werden die Muffen an den Rohrenden durch vorzugsweise stufenweises Aufweiten des Rohrabschnittes hergestellt. Bei jeder benötigten Stufe verdünnt sich hierbei die Wandstärke beim Aufweiten des Rohres. Es hat sich z. B. gezeigt, dass bei einem Rohr mit Nennweite > 50 mm und mit einer Wandstärke von 2,7 mm die Wandstärke nach einer zweistufigen Aufweitung nur noch 2,4 mm beträgt. In der letzten Stufe der Aufweitung mit der dünnsten Wandstärke wird das Rohrende in der Regel zusätzlich nach innen umgebördelt, um hinter dem Bördelrand beim späteren Zusammenfügen von Rohren einen ausreichenden Halt für die Dichtelemente zu haben. An der Stelle der Umbördelung und im Bereich der Dichtelemente wird dann später der Fitting am stärksten belastet, was im ungünstigsten Fall zu Undichtigkeiten führen kann. Derartige Undichtigkeiten können dann entstehen, wenn wegen der dünnen Wandstärke die Muffe an der in der beigefügten Fig. 1 mit "A" bezeichneten Stelle aufgebogen wird. Nach dem zum Stand der Technik gehörigen Herstellungsverfahren konnten Undichtigkeiten durch Aufbiegen der Muffe nur dadurch verhindert werden, dass von vornherein eine größere Wanddicke des Rohres gewählt wurde. Für die normalen nicht aufgeweiteten Teile musste das Rohr also im bestimmten Maß überdimensioniert sein, damit es im aufgeweiteten Teil des Rohres mit der durch die Aufweitung verursachten geringeren Wanddicke den erforderlichen Belastungen stand hielt.In the production of copper or steel fittings from pipes, the sleeves are made at the pipe ends by preferably stepwise widening of the pipe section. At each required level, the wall thickness dilutes when expanding the pipe. It has z. B. shown that in a pipe with nominal width> 50 mm and with a wall thickness of 2.7 mm, the wall thickness after a two-stage expansion is only 2.4 mm. In the last stage of expansion with the thinnest wall thickness, the pipe end is usually additionally flared inwards to have behind the bead later in the joining of pipes a sufficient grip for the sealing elements. At the location of the flanging and in the area of the sealing elements, the fitting is then subjected to the heaviest load, which in the worst case can lead to leaks. Such leaks can arise when, because of the thin wall thickness, the sleeve on the attached in the Fig. 1 bent with "A" point is bent. According to the prior art manufacturing processes leaks could be prevented by bending the sleeve only by the fact that a larger wall thickness of the tube was chosen from the outset. For the normal unexpanded parts, therefore, the pipe had to be oversized to a certain extent so that it withstood the required loads in the expanded part of the pipe with the smaller wall thickness caused by the expansion.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zur Herstellung einer Muffe an einem Rohr vorzuschlagen, bei dem auf eine Vergrößerung der Wanddicke der eingesetzten Rohre verzichtet werden kann.The invention is therefore based on the object to propose a method and an apparatus for producing a sleeve on a pipe in which can be dispensed with an increase in the wall thickness of the tubes used.

Die Lösung dieser Aufgabe ist in den Patenansprüchen 1 und 5 angegeben. Die Unteransprüche 2 bis 4 enthalten sinnvolle ergänzende Verfahrensvorschläge. In den Unteransprüchen 6 bis 8 sind vorteilhafte Ausführungsformen der erfindungsgemäßen Vorrichtung beschrieben.The solution to this problem is specified in the patent claims 1 and 5. The dependent claims 2 to 4 contain useful supplementary procedural proposals. In the subclaims 6 to 8 advantageous embodiments of the device according to the invention are described.

Um der beim Verfahren nach dem Stand der Technik geschilderten Problematik zu entgehen, sieht der erfindungsgemäße Vorschlag vor, insbesondere zusammen mit der letzten Aufweitstufe oder in einem separaten Arbeitsschritt einen Stauchvorgang am Rohrende durchzuführen, wobei der Innendurchmesser mit dem Aufweitwerkzeug vorgegeben wird. Der Außendurchmesser wird begrenzt durch das Stauchwerkzeug und den äußeren Formbacken, der das Rohrende beim Aufweiten umgibt.In order to avoid the problem described in the prior art method, the proposal according to the invention provides, in particular together with the last expansion stage or in a separate working step, to carry out an upsetting operation at the pipe end, wherein the inner diameter is predetermined with the expansion tool. The outer diameter is limited by the compression tool and the outer mold jaw, which surrounds the pipe end during expansion.

Mit dem erfindungsgemäßen Verfahren ist es, insbesondere bei Rohren aus Kupfer oder Cu-, Ni-, Fe-Legierungen möglich eine Verdickung der Wandstärke an den Stellen zu erreichen, wo sie für die spätere Anwendung kräftemäßig benötigt wird. Die Verdickung der Wandstärke hängt naturgemäß davon ab, wie groß der in Fig. 2 dargestellte Hub "X" gewählt wird.With the method according to the invention, it is possible, in particular in the case of pipes made of copper or Cu, Ni or Fe alloys, to achieve a thickening of the wall thickness at the points where it is required in terms of power for the subsequent application. The thickening of the wall thickness naturally depends on how big the in Fig. 2 shown hub "X" is selected.

Es hat sich insbesondere als günstig erwiesen, die Wandstärke in dem kritischen Bereich auf die gleiche Dicke zu bringen, wie bei dem Ausgangsmaterial des Rohres. Durch diesen Erfindungsvorschlag kann die Wanddicke des Ausgang-Rohrstückes um den Betrag geringer sein, wie sich bei dem Stauchvorgang die Wanddicke verstärken läßt. Somit lassen sich in erheblichen Umfang Materialkosten einsparen. Die erfindungsgemäße Vorrichtung zur Herstellung einer Muffe an einem Rohrende nach dem beschriebenen Verfahren besteht gemäß Patentanspruch 5 aus

  • einem axial in das Rohrende einführbaren Aufweitwerkzeug mit ein oder mehreren konischen und zylindrischen Teilen, die die späteren Innendurchmesser des Rohrendes bestimmen,
  • ein oder mehreren Formbacken mit konischen und zylindrischen Teilen, die die späteren Außendurchmesser des Rohrendes bestimmen und
  • einer im Wesentlichen zylindrisch ausgebildeten Stauchvorrichtung, deren kleinster Innendurchmesser mit dem notwendigen Spiel dem maximalen Außendurchmesser des Aufweitwerkzeuges entspricht und das einen im Wesentlichen radial verlaufenden ringförmigen Ansatz besitzt, der für den Stauchvorgang axial gegen die Stirnfläche des Rohrendes preßbar ist.
In particular, it has proved to be advantageous to bring the wall thickness in the critical region to the same thickness as in the starting material of the tube. By this invention proposal, the wall thickness of the output pipe section may be smaller by the amount, as can be amplified in the upsetting process, the wall thickness. Thus, material costs can be saved considerably. The inventive device for producing a sleeve at a pipe end according to the described method according to claim 5
  • an expansion tool insertable axially into the pipe end and having one or more conical and cylindrical parts which determine the later inner diameters of the pipe end,
  • one or more mold jaws with conical and cylindrical parts, which determine the later outer diameter of the pipe end and
  • a substantially cylindrically shaped compression device whose smallest inner diameter with the necessary clearance corresponds to the maximum outer diameter of the expansion tool and which has a substantially radially extending annular projection which is compressible axially against the end face of the pipe end for the compression process.

Durch das Zusammenwirken von Aufweitwerkzeug, Formbacken und Stauchvorrichtung kann also eine vorzugsweise mehrstufig aufgeweitete Rohrmuffe geformt werden. Die Stauchvorrichtung besteht dabei im Wesentlichen aus einem zylindrischen Rohr mit einer inneren ringförmigen Aussparung zur Aufnahme des aufgeweiteten Rohrendes, das axial gegen die Stirnseite des Rohrendes gepreßt wird. Die Innendurchmesser der Aussparung und des Formbacken sind vorzugsweise in dem Bereich, in dem es zu einer Vergrößerung der Wanddicke kommen soll, derartig aufeinander abgestimmt, daß in Abhängigkeit von dem vorgesehenen Hub bzw. der Relativbewegung zwischen Stauchvorrichtung und Formbacken die gewünschte Wanddicke erreicht werden kann.Through the interaction of expansion tool, mold jaws and compression device so a preferably multi-stage expanded pipe sleeve can be formed. The compression device consists essentially of a cylindrical tube with an inner annular recess for receiving the expanded pipe end, which is pressed axially against the end face of the pipe end. The inner diameter of the recess and the molding jaws are preferably matched to one another in the region in which the wall thickness should increase, so that the desired wall thickness can be achieved depending on the intended stroke or the relative movement between compression device and mold jaws.

Die Erfindung wird anhand der beigefügten Fig. 1 und 2 beispielsweise näher erläutert.

Fig. 1
zeigt im Querschnitt die Form einer erfindungsgemäß hergestellten Muffe an einem Rohr 1.
Fig. 2
zeigt im Schnitt eine vorteilhafte Ausführungsform der erfindungsgemäßen Vorrichtung bei dem Vorgang der Aufweitung und Stauchung des Rohrendes.
The invention will be apparent from the attached Fig. 1 and 2 for example, explained in more detail.
Fig. 1
shows in cross section the shape of a sleeve produced according to the invention on a pipe first
Fig. 2
shows in section an advantageous embodiment of the device according to the invention in the process of expansion and compression of the pipe end.

Das in Fig. 1 dargestellt fertige Rohr 1 besitzt die Wanddicke d1, die der Wanddicke des ursprünglichen Rohrmateriales entspricht. Nach einer zweistufigen Aufweitung besitzt das Rohr 1 einen ersten konischen Teil 5, einen daran angrenzenden ersten zylindrischen Teil 7 mit einer entsprechend dem Maß der Aufweitung gegenüber d1 verringerten Wanddicke d7, einen zweiten konischen Teil 6, einen sich daran anschließenden zweiten zylindrischen Teil 8 und einen nach innen umgebogenen Bördelrand 9. Der zweite zylindrische Teil 8 besitzt eine Wanddicke d8, die vor der Herstellung des Bördelrandes 9 durch den erfindungsgemäßen Stauchvorgang auf das erforderliche Maß vergrößert worden ist. Die Wanddicke d8 sollte mindestens so groß sein wie die Wanddicke d7. Es hat sich sogar als günstig erwiesen, die Wanddicke d8 bis auf die Wanddicke von d1 zu bringen.This in Fig. 1 illustrated finished tube 1 has the wall thickness d1, which corresponds to the wall thickness of the original pipe material. After a two-stage widening, the tube 1 has a first conical part 5, a first cylindrical part 7 adjacent thereto with a reduced wall thickness d7 corresponding to the extent of widening relative to d1, a second conical part 6, an adjoining second cylindrical part 8 and a second conical part inwardly bent beading edge 9. The second cylindrical member 8 has a Wall thickness d8, which has been increased to the required extent by the upsetting process according to the invention prior to the production of the beading edge 9. The wall thickness d8 should be at least as large as the wall thickness d7. It has even proved favorable to bring the wall thickness d8 up to the wall thickness of d1.

Bei der Fig. 2 ist das mehrstufige Aufweitwerkzeug 2 bereits axial in das Rohrende eingepreßt worden. Die Form der Muffe mit den Teilen 5 bis 8 wird innen durch die Teile 5' bis 8' des Aufweitwerkzeuges 2 und außen durch die Teile 5" bis 8" des Formbacken 3 gebildet. Zur Herstellung der größeren Wanddicke des zylindrischen Teiles 8 wird die im Wesentlichen aus einem zylindrischen Rohr bestehende Stauchvorrichtung 4 mit den inneren Ansätzen 10 axial gegen das Rohrende gepreßt, wobei die Relativbewegung zwischen Formbacken 3 und Stauchvorrichtung 4 max. den Hub X haben kann. Zur Aufnahme des zylindrischen Teiles 8 des Rohrendes besitzt die Stauchvorrichtung 4 eine ringförmige Aufsparung, die von dem zylindrischen Teil 11 und dem Ansatz 10 gebildet wird. Erfindungsgemäß kann es zwar ausreichen nur im Bereich der axialen Länge des zylindrischen Teiles 11 die erforderliche Vergrößerung der Wanddicke durch den Stauchvorgang vorzunehmen, es kann aber auch günstig sein, gleichzeitig den Abschnitt des zylindrischen Teiles 8, der von dem Formbacken 3 umfaßt wird auch entsprechend durch den Stauchvorgang zu verdicken.In the Fig. 2 the multi-stage expansion tool 2 has already been pressed axially into the pipe end. The shape of the sleeve with the parts 5 to 8 is formed inside by the parts 5 'to 8' of the expansion tool 2 and on the outside by the parts 5 "to 8" of the forming jaw 3. To produce the larger wall thickness of the cylindrical part 8, the compression device consisting essentially of a cylindrical tube 4 is pressed with the inner lugs 10 axially against the tube end, wherein the relative movement between mold jaws 3 and 4 upsetting device max. Hub X can have. For receiving the cylindrical part 8 of the pipe end, the compression device 4 has an annular recess which is formed by the cylindrical part 11 and the projection 10. According to the invention, although it is sufficient to make only in the axial length of the cylindrical portion 11, the required increase in wall thickness by the upsetting process, but it may also be beneficial, at the same time by the portion of the cylindrical part 8 which is encompassed by the mold jaws 3 to thicken the compression process.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Rohrpipe
22
Aufweitwerkzeugflaring
33
Formbackenforming jaws
44
Stauchvorrichtungclincher
55
Konischer Teil von 1Conical part of 1
5'5 '
Konischer Teil von 2Conic part of 2
5"5 '
Konischer Teil von 3Conical part of 3
66
Konischer Teil von 1Conical part of 1
6'6 '
Konischer Teil von 2Conic part of 2
6"6 "
Konischer Teil von 3Conical part of 3
77
Zylindrischer Teil von 1Cylindrical part of 1
7'7 '
Zylindrischer Teil von 2Cylindrical part of 2
7"7 "
Zylindrischer Teil von 3Cylindrical part of 3
88th
Zylindrischer Teil von 1Cylindrical part of 1
8'8th'
Zylindrischer Teil von 2Cylindrical part of 2
8"8th"
Zylindrischer Teil von 3Cylindrical part of 3
99
Bördelrandbeaded
1010
Ansatz an 4Approach to 4
1111
Zylindrischer Teil von 4Cylindrical part of 4
XX
Hub von 4 (max.)Stroke of 4 (max.)
d1d1
Wanddicke von 1Wall thickness of 1
d7d7
Wanddicke von 5Wall thickness of 5
d8d8
Wanddicke von 8Wall thickness of 8

Claims (8)

  1. Method for producing a coupling on a pipe (1), preferably made of copper or steel or Cu, Ni, Fe alloys, preferably by multistage or single-stage widening of the pipe end with a change of diameter,
    wherein a widening tool (2) is inserted axially into the pipe end, as a result of which a cylindrically widened part (8) having the face of the pipe end is formed,
    wherein with and/or after the insertion of the widening tool (2) into the pipe end an upsetting device (4) with an annular recess formed by an annular attachment (10) and a cylindrical part (11) to receive the widened part (8) is pressed with its attachment (10) axially against the face of the pipe end on the widened part (8) and the thus effective force completely or partially upsets the widened part (8),
    wherein the inside diameter of the part (8) is restricted by the widening tool (2), wherein the outside diameter of the pipe end to be machined is restricted by one or more shaping cheeks (3) partially surrounding the pipe end, and
    wherein the inside diameters of the recess and the shaping cheeks (3) in the region of the part (8), in which an increase in wall thickness is to occur, are matched to one another in such a manner that the desired wall thickness is obtained in dependence on the provided relative movement between the upsetting device (4) and the shaping cheeks (3).
  2. Method according to claim 1, characterised in that in the case of multistage widening of the pipe end, only the widened region (8) of the pipe end with the largest diameter is upset.
  3. Method according to claim 1 or 2, characterised in that the widened part (8) of the pipe end is upset to such an extent that the wall thickness (d8) is increased in the upset section to the wall thickness (d1) of the rest of the pipe or at least to the wall thickness (d7) of the previously widened section.
  4. Method according to claim 1, 2 or 3, characterised in that the upset pipe ends are beaded inwards to receive sealing elements.
  5. Device for producing a coupling on a pipe end according to the method described in the preceding claims, comprising
    • a widening tool (2) that can be inserted axially into the pipe end and has one or more conical and cylindrical parts (5', 6', 7', 8'), which determine the subsequent inside diameters of the pipe end,
    • one or more shaping cheeks (3) with conical and cylindrical parts (5"; 6", 7", 8"), which determine the subsequent outside diameters of the pipe end and for this partially surround the pipe end,
    • a substantially cylindrically configured upsetting device (4), the smallest inside diameter of which corresponds to the maximum outside diameter of the widening tool (2) with the necessary play and which has a recess formed from an annular attachment (10) and a cylindrical part (11), which serves to receive a widened part (8) having the face of the pipe end, wherein for the upsetting process the attachment (10) can be pressed axially against the face of the pipe end, and
    • wherein the inside diameters of the recess and the shaping cheeks (3) in the region of the part (8), in which an increase in wall thickness is to occur, are matched to one another in such a manner that the desired wall thickness is obtained in dependence on the provided relative movement between the upsetting device (4) and the shaping cheeks (3).
  6. Device according to claim 5, characterised in that on the side facing the pipe end the widening tool (2) has a cylindrical part (11) adjoining the attachment (10), the inside diameter of which determines the increased outside diameter obtained after the upsetting process of the cylindrical part (8) of the pipe end with the largest diameter.
  7. Device according to claim 6, characterised in that the inside diameter of the cylindrical part (11) corresponds to the maximum inside diameter of the shaping cheeks (3).
  8. Device according to claim 6 or 7, characterised in that the axial length of the cylindrical part (11) is greater than or equal to the length of the cylindrical part of the shaping cheeks (3) with the largest inside diameter.
EP04765466A 2003-11-28 2004-09-22 Method for producing a coupling on a pipe and device for producing said coupling Active EP1689539B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10356317 2003-11-28
PCT/EP2004/010591 WO2005061148A1 (en) 2003-11-28 2004-09-22 Method for producing a coupling on a pipe and device for producing said coupling

Publications (2)

Publication Number Publication Date
EP1689539A1 EP1689539A1 (en) 2006-08-16
EP1689539B1 true EP1689539B1 (en) 2011-06-29

Family

ID=34683278

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04765466A Active EP1689539B1 (en) 2003-11-28 2004-09-22 Method for producing a coupling on a pipe and device for producing said coupling

Country Status (8)

Country Link
US (1) US7770429B2 (en)
EP (1) EP1689539B1 (en)
JP (1) JP2007512140A (en)
CN (1) CN100384563C (en)
AT (1) ATE514498T1 (en)
BR (1) BRPI0416941A (en)
DE (1) DE102004045981A1 (en)
WO (1) WO2005061148A1 (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080061555A1 (en) * 2005-02-16 2008-03-13 Colin Knight Flared cone fitting
JP4906849B2 (en) * 2006-05-15 2012-03-28 株式会社小松製作所 Steel pipe expansion forming method and steel pipe expansion forming apparatus
DE102007024357B3 (en) * 2007-05-24 2008-10-09 Witzig & Frank Gmbh Method and device for producing pipe connections
US7942456B2 (en) * 2008-01-04 2011-05-17 Cerro Flow Products, Inc. Fluid conduits with integral end fittings and associated methods of manufacture and use
US7987690B2 (en) * 2008-01-04 2011-08-02 Cerro Flow Products Llc Fluid conduits with integral end fittings and associated methods of manufacture and use
DE102009007303B4 (en) 2009-02-03 2023-05-04 Viega Technology Gmbh & Co. Kg Fitting for thick-walled pipes
JP5641702B2 (en) * 2009-03-27 2014-12-17 株式会社小松製作所 Steel pipe expansion forming method and pipe expansion forming apparatus
DE102009024198B4 (en) * 2009-06-08 2012-05-10 Mag Ias Gmbh Method of making press fittings and tools therefor
EP2392418A1 (en) * 2010-06-01 2011-12-07 AB Alvenius Industrier A metal pipe for conducting a medium, a pipe arrangement and a method for manufacturing a metal pipe
EP2428289B1 (en) * 2010-09-08 2013-04-03 Crowntec Fitness MFG., Ltd. Method of fabricating sleeves for trampolines
CN103317013B (en) * 2012-12-31 2015-03-04 上海奥林汽车配件有限公司 Expanding closing-up forming die
CN103170542B (en) * 2013-04-12 2015-09-30 柳州力通车用空调有限公司 The method of pipe joint expanded joint
CN103157726B (en) * 2013-04-12 2015-09-02 柳州力通车用空调有限公司 Pipe joint expanded joint expansion set mould
CN103157725B (en) * 2013-04-12 2015-11-04 柳州力通车用空调有限公司 Pipe joint expansion shaping mould
CN104175066B (en) * 2014-07-07 2016-05-25 西安交通大学 Axially pushing of a kind of ultra-long tube head flanges gathers material and jumping-up combination process
CN104492987A (en) * 2014-10-21 2015-04-08 镇江利奥排气技术有限公司 High-precision flared fitting forming tool
DE102015110998B4 (en) * 2015-07-08 2023-03-02 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Method for manufacturing an end pipe finisher or a pipe element and device for manufacturing the end pipe finisher or the pipe element
CN105057470B (en) * 2015-09-18 2017-06-27 河源市北美通电子科技有限公司 A kind of processing jig and processing method
CN105290243B (en) * 2015-11-20 2017-08-08 绵阳市川金机械制造有限公司 A kind of production technology of steering column
CN105436333A (en) * 2016-01-05 2016-03-30 天津市久盛通达科技有限公司 Port reshaping machine for steel pipe
MX2018010764A (en) 2016-03-11 2018-11-29 Nippon Steel & Sumitomo Metal Corp Method for manufacturing different-thickness steel pipe, and different-thickness steel pipe.
JP6521914B2 (en) 2016-07-26 2019-05-29 トヨタ自動車株式会社 Manufacturing method, manufacturing method of stabilizer and mold for manufacturing stabilizer
CN107214259A (en) * 2017-07-14 2017-09-29 熊卓成 The swollen type drift and swollen type method of automobile-used special pipe
CN108655290B (en) * 2018-03-27 2020-01-10 浙江美联智能科技有限公司 Spindle seat processing and forming method of coating spindle
CN111299979B (en) * 2020-03-24 2021-11-23 重庆志齐机械制造有限公司 Preparation process of cold extrusion piston tube
CN112427559B (en) * 2020-10-22 2022-09-16 浙江美联智能科技有限公司 Method for forming ingot cover of covered spindle
CN113926870B (en) * 2021-10-09 2024-05-14 东莞市坤元金属制品有限公司 Bicycle axle center processing method
CN114833286B (en) * 2022-04-27 2024-04-30 太原理工大学 Flaring-upsetting composite forming device and method for thin-wall pipe end flange

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2129921B1 (en) * 1971-03-22 1974-08-19 Besson Louis
JPS5252664A (en) * 1975-10-25 1977-04-27 Toshiba Corp Detector for liquid level
JPS549152A (en) * 1977-06-23 1979-01-23 Mitsuboshi Seisakusho Method of making stairinggheaddpipe
US4295357A (en) * 1978-08-28 1981-10-20 General Tire & Rubber Co. Apparatus for making metal outers and inners
JPS60199531A (en) * 1984-03-23 1985-10-09 Fujiki Kosan Kk Manufacture of joining part of stave cooling tube and tool to be used for it
JPS63149038A (en) * 1986-12-15 1988-06-21 Nippon Steel Corp Method for working steel pipe end part by outer upsetting press
US4768369A (en) * 1987-11-13 1988-09-06 Johnson Russell H Method of forming a pipe fitting
JPH0386326A (en) * 1989-08-29 1991-04-11 Showa Alum Corp End working method for extrusion molding pipe material
DE4410146C2 (en) * 1993-10-23 2000-06-15 Witzig & Frank Gmbh Device for the production of press fittings
CN1047113C (en) * 1994-03-07 1999-12-08 东北重型机械学院南校 Spiral-weld tube formation extruding machine
FR2759483B1 (en) * 1997-02-12 1999-04-30 Zircotube METHOD OF MANUFACTURING A TUBE-GUIDE OF A FUEL ASSEMBLY OF A NUCLEAR REACTOR, MANDRE FOR FORGING A TUBE-GUIDE AND TUBE-GUIDE OBTAINED
DE19757021A1 (en) * 1997-12-20 1999-07-15 Federal Mogul Wiesbaden Gmbh Bearing bush and process for its manufacture
DE10031989B4 (en) 2000-06-30 2007-08-16 Witzig & Frank Gmbh Method and device for producing press fittings made of steel, in particular stainless steel
DE10064376A1 (en) * 2000-12-21 2002-06-27 Schmittersysco Gmbh Pipe deformation process for exhaust pipes involves creating widened and thickened pipe wall directly at end sector
GB0128667D0 (en) * 2001-11-30 2002-01-23 Weatherford Lamb Tubing expansion
US7140226B2 (en) * 2002-08-05 2006-11-28 Giant Manufacturing Co., Ltd. Methods for making a bicycle frame part having a disproportionally enlarged end section

Also Published As

Publication number Publication date
BRPI0416941A (en) 2007-02-13
CN100384563C (en) 2008-04-30
EP1689539A1 (en) 2006-08-16
JP2007512140A (en) 2007-05-17
DE102004045981A1 (en) 2005-07-21
US7770429B2 (en) 2010-08-10
US20070256467A1 (en) 2007-11-08
ATE514498T1 (en) 2011-07-15
CN1886210A (en) 2006-12-27
WO2005061148A1 (en) 2005-07-07

Similar Documents

Publication Publication Date Title
EP1689539B1 (en) Method for producing a coupling on a pipe and device for producing said coupling
EP1707861B1 (en) Fitting and method for manufacturing thereof
DE10031989B4 (en) Method and device for producing press fittings made of steel, in particular stainless steel
DE10120392B4 (en) Process for producing rotationally symmetrical components
DE19508632A1 (en) Joining part to second part method
DE4322711C2 (en) Method of making a pipe bend
EP0085388B1 (en) Method of making a metal socket starting from a cylindrical tubular piece
DE102005036419B4 (en) Device for producing bulged hollow profiles, in particular gas generator housings for airbag devices
WO2005018846A1 (en) Internal high pressure shaping method for shaping conical metal tubes
DE19820124A1 (en) Steering rod tube production
DE102020132822B4 (en) Process for manufacturing an internal stop in a tubular component
DE19815244A1 (en) Hollow metal body forming method for hydraulic fluid line connections, such as for automobile hydraulics
DE102006012625C5 (en) Method for producing profiles
EP1477248B1 (en) Method of manufacturing a hollow body as semi-finished product for a crucible or casting roll
EP1105228A2 (en) Method for deforming through high inner pressure at least two hollow bodies having each at least one opening, especially metal tubes or metal hollow profiles
DE19837131C2 (en) Process for hydroforming two or more hollow bodies, each with at least one opening, in particular metal pipes or hollow metal profiles, and hydroforming machine for carrying out the process
DE3840938C2 (en)
DE3418307A1 (en) Method for the production of a thin-walled shell in the shape of an annular channel and an apparatus for carrying out the method
DE102012110792B4 (en) Forming method for producing a stepped cross-sectional taper on a tubular metal workpiece
DE10135411C2 (en) Process for the production of gas distribution pipes, in particular for vehicle airbags
DE102019000032A1 (en) Method for forming at least one opening on a hollow profile, device for carrying out such a method
EP1120179B1 (en) Method for attaching a rod shaped part to a holder.
EP2205370B1 (en) Process and apparatus for producing a hollow body, and hollow body
DE10233374B4 (en) Process for producing a one-piece press fitting made of metal
DE10162391B4 (en) Method for the positive connection of two components

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20060420

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20090121

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MAG IAS GMBH

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502004012654

Country of ref document: DE

Representative=s name: RUEGER, BARTHELT & ABEL, DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502004012654

Country of ref document: DE

Representative=s name: RUEGER | ABEL PATENT- UND RECHTSANWAELTE, DE

Effective date: 20110715

Ref country code: DE

Ref legal event code: R081

Ref document number: 502004012654

Country of ref document: DE

Owner name: MAG IAS GMBH, DE

Free format text: FORMER OWNER: WITZIG & FRANK GMBH, 77652 OFFENBURG, DE

Effective date: 20110708

Ref country code: DE

Ref legal event code: R082

Ref document number: 502004012654

Country of ref document: DE

Representative=s name: RUEGER, BARTHELT & ABEL, DE

Effective date: 20110715

Ref country code: DE

Ref legal event code: R081

Ref document number: 502004012654

Country of ref document: DE

Owner name: MAG IAS GMBH, DE

Free format text: FORMER OWNER: MAG IAS GMBH, 73033 GOEPPINGEN, DE

Effective date: 20110715

Ref country code: DE

Ref legal event code: R081

Ref document number: 502004012654

Country of ref document: DE

Owner name: FFG WERKE GMBH, DE

Free format text: FORMER OWNER: WITZIG & FRANK GMBH, 77652 OFFENBURG, DE

Effective date: 20110708

Ref country code: DE

Ref legal event code: R081

Ref document number: 502004012654

Country of ref document: DE

Owner name: FFG WERKE GMBH, DE

Free format text: FORMER OWNER: MAG IAS GMBH, 73033 GOEPPINGEN, DE

Effective date: 20110715

Ref country code: DE

Ref legal event code: R082

Ref document number: 502004012654

Country of ref document: DE

Representative=s name: RUEGER, BARTHELT & ABEL PATENTANWAELTE, DE

Effective date: 20110715

Ref country code: DE

Ref legal event code: R082

Ref document number: 502004012654

Country of ref document: DE

Representative=s name: RUEGER ABEL PATENT- UND RECHTSANWAELTE, DE

Effective date: 20110715

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502004012654

Country of ref document: DE

Effective date: 20110908

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20110629

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110930

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111031

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

BERE Be: lapsed

Owner name: MAG IAS G.M.B.H.

Effective date: 20110930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110930

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20120330

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110930

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110930

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110930

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502004012654

Country of ref document: DE

Effective date: 20120330

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 514498

Country of ref document: AT

Kind code of ref document: T

Effective date: 20110922

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110922

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111010

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110922

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502004012654

Country of ref document: DE

Representative=s name: RUEGER, BARTHELT & ABEL PATENTANWAELTE, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502004012654

Country of ref document: DE

Representative=s name: RUEGER | ABEL PATENT- UND RECHTSANWAELTE, DE

Effective date: 20140502

Ref country code: DE

Ref legal event code: R082

Ref document number: 502004012654

Country of ref document: DE

Representative=s name: RUEGER, BARTHELT & ABEL PATENTANWAELTE, DE

Effective date: 20140502

Ref country code: DE

Ref legal event code: R081

Ref document number: 502004012654

Country of ref document: DE

Owner name: FFG WERKE GMBH, DE

Free format text: FORMER OWNER: MAG IAS GMBH, 73033 GOEPPINGEN, DE

Effective date: 20140502

Ref country code: DE

Ref legal event code: R082

Ref document number: 502004012654

Country of ref document: DE

Representative=s name: RUEGER ABEL PATENT- UND RECHTSANWAELTE, DE

Effective date: 20140502

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20140724 AND 20140730

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Owner name: FFG WERKE GMBH, DE

Effective date: 20140909

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230921

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230918

Year of fee payment: 20

Ref country code: DE

Payment date: 20230919

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230929

Year of fee payment: 20