EP0322722B1 - Procédé et appareil pour le formage de collerettes latérales sur des tubes en tôle - Google Patents

Procédé et appareil pour le formage de collerettes latérales sur des tubes en tôle Download PDF

Info

Publication number
EP0322722B1
EP0322722B1 EP88121335A EP88121335A EP0322722B1 EP 0322722 B1 EP0322722 B1 EP 0322722B1 EP 88121335 A EP88121335 A EP 88121335A EP 88121335 A EP88121335 A EP 88121335A EP 0322722 B1 EP0322722 B1 EP 0322722B1
Authority
EP
European Patent Office
Prior art keywords
necking
cone
mandrel
collar
tube
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.)
Expired - Lifetime
Application number
EP88121335A
Other languages
German (de)
English (en)
Other versions
EP0322722A3 (en
EP0322722A2 (fr
Inventor
Waldemar Bauer
Bernd Ing.(Grad.) Schappler
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.)
Weba Westerbarkey & Co Kg GmbH
Original Assignee
Weba Westerbarkey & Co Kg GmbH
Weba Westerbarkey & Co Kg GmbH
Westerbarkey Weba & Co KG GmbH
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 Weba Westerbarkey & Co Kg GmbH, Weba Westerbarkey & Co Kg GmbH, Westerbarkey Weba & Co KG GmbH filed Critical Weba Westerbarkey & Co Kg GmbH
Publication of EP0322722A2 publication Critical patent/EP0322722A2/fr
Publication of EP0322722A3 publication Critical patent/EP0322722A3/de
Application granted granted Critical
Publication of EP0322722B1 publication Critical patent/EP0322722B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • B21C37/292—Forming collars by drawing or pushing a rigid forming tool through an opening in the tube wall

Definitions

  • the invention relates to a device for necking sheet metal tubes on a preferably oval side cutout by means of a mandrel for the tube and a necking die placed on the cutout, which cooperates with a necking cone.
  • the difficulty is to cut an opening in the one pipe to which the other pipe is to be connected, which allows the penetration of the two cylindrical body and cut the other tube at its end so that the penetration curve is created.
  • the butt welding or soldering of the pipes prepared in this way is associated with considerable difficulties, requires extraordinary manual dexterity and is also very time-consuming. For this reason, a transition has been made to provide the sheet metal pipes to which a further pipe is to be connected with a neck.
  • the first tube is provided with a preferably oval lateral cutout and the tube is pushed onto a mandrel in which a necking cone is loosely arranged in a corresponding cavity.
  • the cutout of the tube is centered with the cone and then a necking die is placed on the tube, also centered, and a threaded rod is screwed into a central threaded hole of the necking cone.
  • This is connected to the piston rod of a hydraulic cylinder which is mounted on the necking die.
  • the necking cone is then pulled out of the tube by means of the hydraulic cylinder and thereby deforms the surroundings of the oval cutout, bearing against the necking die, so that the sheet metal tube is necked out.
  • the necking device After dismantling the necking device, unscrewing the necking cone and pulling off the tube from the holding mandrel, the second tube, the connecting tube, can then be welded or soldered to the necking of the tube thus produced, optionally while straightening the edge of the necking, such as to a tubular flange or a pipe joint.
  • GB-A-807 608 proposes a device in which one or more mandrels are pressed from the inside through the wall of the pipe (which can also be pre-punched accordingly) and from the outside At this point, a half-shell rests on the tube, in which one or more hollow shapes are formed which, in cooperation with the spikes pressed out from the inside of the tube, form the connecting pieces from the outside. It is advantageous if the tube is preheated.
  • GB-A-749 794 relates to a necking device in which a holding mandrel is introduced into the pipe to be necked, which has approximately the same diameter as the pipe to be necked, and in which a recess is provided in which a necking cone is provided which with an opening provided through the opening in the pipe to be necked, gripped with a screw and pulled through the opening.
  • the screw is guided in a yoke supported next to the necking point against the pipe to be necked.
  • This device is intended for (relatively) thick-walled, forged or rolled pipes; their use would lead to the unfolding, even tearing, of the material to be deformed when trying to neck out thin-walled sheet metal tubes.
  • US-A-2 368 394 against which the independent claim 1 is delimited, describes a device for necking sheet metal tubes, in which the tube to be necked is placed on a mandrel of approximately the same diameter, and in which the tube to be necked in another The area around the necking point is held down by hold-down devices which sit positively on the pipe.
  • a necking cone with a necking matrix acts for necking out together, the necking cone deforming the material present in the area of the necking without cutting in the manner of a deep-drawing tool.
  • the necking die is constructed in two parts; This design makes it unsuitable for economical use in thin-walled pipes, such as those required in ventilation and air-conditioning technology: the two outer jaws of the necking die, which have to be pushed laterally over the pipe, must necessarily have a certain distance from one another when closed or pushed together , so that they fit tightly and tightly against the pipe, and with which inaccuracies, certain differences in the sheet thickness and the like can be compensated; if they lie together with their mutually opposing edges in the closed state without a joint, it is not possible to exert the required pressure on a sheet metal tube.
  • Necking out a thin-walled sheet metal tube therefore inevitably leads to an extremely disadvantageous bulge in the sheet metal occurring precisely at the point of the joint, that is to say at two opposite points of the necking, during the necking process, the sheet metal of the tube deforms in an undesired manner and not Sufficiently rounded corners of the two holding jaws additionally present the risk of tearing, which in turn provides an even larger space for the undesired deformation of the sheet during necking.
  • the invention has set itself the task of avoiding these disadvantages in the previously known necking of pipes and proposing a device with which the necking of sheet metal pipes largely automatically with very little expenditure of time can be carried out, ensuring that unwanted deformation and bulging of the sheet metal tubes is avoided during the necking.
  • a device is characterized in that the resilient coupling takes place by means of radially projecting, resilient pawls on the necking cone or on the piston rod, and the necking die is in the form of a lowerable one-piece support shell of approximately the same length of the holding mandrel, which is provided with a through-opening, which is opposite to the recess for the neck cone coaxially and also coaxially opposite the piston rod, a trigger pot that can be pushed forward on a rod is provided, which with its outer edge presses back the spring-loaded pawls on the piston rod or neck cone, accommodates the latter and returns to its starting position in the recess of the arbor.
  • radially protruding pawls are known in principle from WO 83/04379; This document relates to a rotor bearing of a centrifuge, in which the rotor shaft can be axially displaced to come into engagement with the drive.
  • the cover covering the centrifuge must be lockable so that removal of the rotor of the centrifuge is prevented during rotation.
  • radially protruding pawls are provided on the rotor shaft, which cooperate with corresponding recesses in such a way that the rotor covered with a covering hood cannot be removed in the locked position, and that the pawls are released and the rotor only after the rotor shaft and drive have been decoupled Cover is removable.
  • the entire inner surface of the tube lies outside the neck opening the arbor; it is encompassed by the one-piece necking die of approximately the same length as the holding mandrel as a support shell up to the mandrel diameter lying transversely to the necking, whereby it is positively supported on the one hand over a sufficient length and on the other hand is held in the same area by the die from the outside. This reliably prevents bulging, folding or even tearing of the material that is deformed without cutting during necking.
  • the neck cone is provided with a central through hole for receiving the free end of the piston rod of the hydraulic cylinder, which is to be coupled to the neck cone by means of radially projecting, resilient pawls.
  • Spring-loaded pawls are arranged on the free ends of the piston rod at at least two radially opposite points, the pivot bearings of which are adjacent to the end of the piston rod.
  • At least two radially opposite spring-loaded pawls, the pivot bearings of which lie opposite the wide end of the cone can also be arranged in the through hole of the necking cone at its wide end.
  • the mandrel has opposite supports for this cone at the largest transverse diameter of the recess for the necking cone.
  • the device is designed in such a way that the holding mandrel is tubular and has a recess in the form of the penetration of the necking with the tube, which are provided with flat contact surfaces for the necking cone at the deepest points opposite one another.
  • the device according to the invention it is possible to push a tube consisting of relatively very thin sheet metal, which is already provided with a lateral oval cutout elsewhere, on the tubular mandrel and after aligning the cutout in the tube to the necking cone To put the device into action, which then lowers the necking die with the surrounding half-shell and presses the pipe against the mandrel over a large area. Then the piston rod already aligned in the machine with the taper neck and die is lowered and couples automatically attaches itself to the neck cone, which is then immediately pulled out through the neck matrix and the neck is formed on the tube.
  • the necked-out pipe is released and can be pulled off the mandrel, whereupon the release cup is pushed up through the mandrel in order to release the pawls which connect the necking cone to the piston rod, pick up the necking cone and lead back to its support in the mandrel. Then a new work cycle can begin immediately.
  • an elongated hole 2 with an oval or flat-oval outline is laterally cut or punched into a tube 1.
  • a neck 3 is formed on the tube 1 at the location of this hole 2, which is used in the form of a collar or flange for attaching and welding or soldering another tube.
  • This necking 3 can run at right angles to the axis of the tube 1, but it can also be designed inclined at an angle if the tube to be connected is to derive at such an angle.
  • the device according to FIG. 3 essentially consists of a holding mandrel 4 which is fixed to the frame and which is advantageously designed in the form of a tube made of strong material.
  • the mandrel 4 has about 3 times the length of the diameter of the neck 3 in the tube, which is indicated here by the thin line 1.
  • a wide opening 5 is provided, the boundary 6 of which corresponds to the penetration of the neckline to be produced with the tube 1.
  • a small, likewise round opening 7 is arranged in the holding mandrel centrally on this opening 5 on the opposite side of the holding mandrel 4.
  • a half-shell 8 is placed, about the same length of the mandrel.
  • This half-shell 8 surrounds the mandrel 4 taking into account the sheet thickness of the tube 1 over its entire upper half up to the largest diameter of the mandrel, which is transverse to the neck.
  • the necking die 9 is fixedly arranged, the inner opening 10 of which corresponds to the cutout 5 in the holding mandrel and adjoins the boundary 6 of this holding opening 5 with a rounded edge.
  • the attachment on the half-shell 8, referred to as the necking die 9, is reproduced here for clarification only to a considerable extent; it may also be missing if the material thickness of the half-shell 8 is sufficient to ensure adequate guidance of the sheet when pulling the neck.
  • FIG. 4 Such an embodiment is shown in FIG. 4 and the following. In these figures, the device is further described and its function is immediately explained. 4 and 5, the tube 1 provided with the lateral cutout 2 is pushed onto the mandrel 4. In the upper opening 5 of the tube, the necking cone 11 is inserted in such a way that it lies securely on opposite sides on flat surfaces 9 formed there on the boundary 6 of the opening 5. The neck cone 11 is provided with a central through hole 13. The tube 1 pushed onto the mandrel 4 is aligned with its cutout 2 centrally with respect to the necking cone 11.
  • a stop can be arranged on the holding mandrel, which limits the length of the pipe 1 being pushed on, and furthermore a marking can be attached to the pipe, which is to be aligned with a corresponding marking on the holding mandrel or the stop when pushed on.
  • the half-shell 8 is held above the mandrel 4 on a vertically displaceable slide 14, above which the hydraulic cylinder 15 is also arranged, the piston rod 16 of which projects downward and is centered with respect to the through hole 13 of the necking cone 11.
  • the piston rod 16 of which projects downward and is centered with respect to the through hole 13 of the necking cone 11.
  • two spring-loaded pawls 17 are arranged radially opposite one another, the pivot point of which lies directly adjacent to the end face of the piston rods. It can be seen that these pawls 17 begin due to their spring loading similar to barbs at the end of the piston rod, protrude obliquely from this.
  • the diameter of the piston rod 16 corresponds to the diameter of the through hole 13 in the end cone.
  • the carriage 14 is lowered and thus the half-shell 8 is pressed onto the mandrel 4 with the interposition of the tube 1 pushed onto the mandrel.
  • the piston rod 16 has already been lowered and, as will be explained in more detail later , after immersion in the through hole of the neck cone 11 couples to it.
  • the piston rod is then pulled upward again from its cylinder and has pulled the neck cone 11 upward while necking out the tube 1.
  • the neck 3 can be seen particularly well in FIG. 6. It can also be seen that during the entire necking process, the sheet metal of the tube lies against the mandrel 4 on its entire inner surface and is held in its upper half by the half-shell 8 against the mandrel 4, so that an unwanted deformation or bulge cannot occur. Only the areas of the tube 1 that are to be deformed are exposed and can be pressed against the limiting cutout 18 or 10 according to FIG. 3 by the necking cone, so that clear deformation and guidance also take place here.
  • the half-shell with the sled will move up again and the tube 1 which has been pulled out can be pulled off the mandrel 4.
  • a release pot 19 arranged coaxially below the holding mandrel 4 is raised on a rod 20, through the opening 7 which is now opened in the holding mandrel, until it rests against the lower end of the piston rod 16.
  • the arrangement is such that the end of the piston rod 16 is suitably inserted into a cavity 21 of the trigger pot 19, the pawls 17 in the piston rod being pressed back against their spring loading.
  • the neck cone 11 is released so that it can slide off the piston rod 16 and rests on the upper edge of the trigger pot 19.
  • a circular groove is appropriately occupied in the neck cone 11, surrounding the end of the piston rod, in which the upper edge of the trigger pot 19 can be positively inserted.
  • the neck cone thus loosened from the piston rod 16 is then guided downward by the trigger pot 19 until it rests on the flat surfaces 9 which delimit the opening 5 of the holding mandrel 4 and remains there, while the trigger pot returns to its initial position accordingly Fig. 5 and previous is withdrawn. This completes the largely automatic work cycle and a next one can begin.
  • FIGS. 9 to 13 A working cycle of the neck cone is explained with reference to FIGS. 9 to 13.
  • Fig. 9 it is shown that the piston rod 16 has penetrated the central through hole 13 of the neck cone 11.
  • the pawls 17, which were pushed in when the piston rod was pushed through the through hole 13, were pushed out of the piston rod under the action of their springs and lay like barbs against the underside of the neck cone 11.
  • the piston rod 16 was thus firmly connected or coupled to the neck cone 11.
  • the trigger pot 19 is pushed upwards from below in the direction of arrow A by means of the rod 20.
  • the trigger pot 19 slides over the end of the piston rod 16 protruding from the cone 11 and presses the pawls 17 against the action of their springs back into the piston rod 16. This state has been reached in FIG. 10. Thus, the coupling between the piston rod 16 and the neck cone 11 is released and the neck cone 11 can sit on the upper edge of the trigger pot 19 and slide off the piston rod 16.
  • the trigger pot is pulled down in the direction of arrow B, the necking cone lies on its upper edge, expediently positively connected with an annular groove which surrounds the through hole 13 on the underside of the cone and has the same outer diameter as the trigger pot .
  • the necking cone 11 lies on the two opposing support levels 9 and is thus returned to its starting position, corresponding to FIG. 12.
  • the trigger pot 19 is pulled further down in the direction of the arrow, out of the mandrel 4, corresponding to FIG. 13, until it has reached its starting position again.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Claims (3)

  1. Dispositif pour le formage de collerettes latérales sur des tubes en tôle mince sur une découpe latérale de préférence ovale en utilisant un mandrin de réception (4) pour le tube (1) et une matrice de formage de collerettes extérieure ainsi qu'un cône de formage de collerettes (11) qui au moyen d'un piston hydraulique est extrait du tube (1) par sa découpe dans la matrice de formage de collerettes, moyennant quoi la longueur du mandrin de réception (4) correspond approximativement au diamètre triple de la collerette (3) et qui est conçue de telle manière que le tube (1) à l'extérieur de l'ouverture de collerette vient s'appuyer par la totalité de sa surface interne sur le mandrin de réception (4) et la matrice de formage de collerette enserre le mandrin de réception (4) et le tube introduit jusqu'au diamètre de mandrin se situant transversalement par rapport à la collerette et le cône de formage de collerettes (11) est doté d'un trou de passage central pour recevoir l'extrémité libre de la tige de piston (16) du vérin hydraulique (15), moyennant quoi le cône de formage de collerettes (11) est accouplé élastiquement, caractérisé en ce qu'un accouplement élastique est réalisé au moyen de cliquets (17) montés sur ressorts, faisant saillie radialement, sur le cône de formage de collerettes (11) ou sur la tige de piston (16), et la matrice de formage de collerettes (8) a la forme d'une coquille d'appui abaissable, monobloc, d'une longueur approximativement égale au mandrin de réception (4), qui est muni d'une ouverture de passage (7) située en regard coaxialement à l'évidement pour le cône de formage de collerettes et également en opposition coaxialement à la tige de piston (16), un réservoir de déclenchement (19) est prévu de façon déplaçable sur une tige (20), réservoir de déclenchement qui, avec son bord extérieur, repousse les cliquets (17) montés sur ressorts sur la tige de piston ou sur le cône de formage de collerettes, reprend ce dernier et le ramène dans sa position de départ dans l'évidement (5) du mandrin de réception (4).
  2. Dispositif selon la revendication 1, caractérisé en ce que le mandrin de réception (4) présente sur le plus grand diamètre transversal de l'évidement (5) pour le cône de formage de collerettes (11) des appuis (12) situés en regard l'un de l'autre pour ce cône.
  3. Dispositif selon la revendication 1, caractérisé en ce que le mandrin de réception (4) est de conception tubulaire et présente un évidement (5) ayant la forme de pénétration de la collerette (3) avec le tube (1), évidement qui est doté dans les positions les plus basses situées en regard l'une de l'autre, de surfaces d'appui planes (12) pour le cône de formage de collerettes (11).
EP88121335A 1987-12-24 1988-12-21 Procédé et appareil pour le formage de collerettes latérales sur des tubes en tôle Expired - Lifetime EP0322722B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3744046A DE3744046C2 (de) 1987-12-24 1987-12-24 Verfahren und Vorrichtung zum Aushalsen von dünnwandigen Blechrohren
DE3744046 1987-12-24

Publications (3)

Publication Number Publication Date
EP0322722A2 EP0322722A2 (fr) 1989-07-05
EP0322722A3 EP0322722A3 (en) 1990-09-19
EP0322722B1 true EP0322722B1 (fr) 1995-01-25

Family

ID=6343566

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88121335A Expired - Lifetime EP0322722B1 (fr) 1987-12-24 1988-12-21 Procédé et appareil pour le formage de collerettes latérales sur des tubes en tôle

Country Status (4)

Country Link
EP (1) EP0322722B1 (fr)
AT (1) ATE117600T1 (fr)
DE (1) DE3744046C2 (fr)
ES (1) ES2068195T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0957556A (ja) * 1995-06-05 1997-03-04 Enami Seiki:Kk 枝管成形工具およびその工具を用いた金属管の枝管の成形方法
US6000263A (en) * 1995-06-05 1999-12-14 Enami Seiki Mfg. Co., Ltd. Branch pipe forming tool and method of forming branch pipe on metal tube with the tool
DE19607311A1 (de) * 1996-02-27 1997-08-28 Kwg Maschinenbau Gmbh Vorrichtung zur Herstellung von Aushalsungen in Werkstücken
DE29616668U1 (de) * 1996-09-27 1997-04-24 Ade, Rainer, 71711 Steinheim Rohrumformer
US6430812B1 (en) * 1997-08-28 2002-08-13 The Boeing Company Superplastic forming of tubing pull-outs
DE102005026761A1 (de) † 2005-06-09 2006-12-21 Martin Brielmaier Fahrzeug
RU2448052C1 (ru) * 2010-11-08 2012-04-20 Александр Вадимович Утин Способ сгущения сапонитовой суспензии

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2368394A (en) * 1943-05-03 1945-01-30 Young Radiator Co Apparatus for flanging openings in tube type headers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2240319A (en) * 1939-07-24 1941-04-29 Taylor James Hall Method of producing pipe fittings
GB749794A (en) * 1953-11-19 1956-05-30 Arthur Collier Junior Improved tool for making tee or branch joints in tubing
GB807608A (en) * 1956-10-18 1959-01-21 Andre Huet Methods of and apparatus for producing tubulures along a generatrix of a header
US3064707A (en) * 1959-09-30 1962-11-20 Carrier Corp Joining of tubular members
US3680349A (en) * 1970-06-18 1972-08-01 United Mcgill Corp Apparatus for making a conduit fitting
WO1983004379A1 (fr) * 1982-06-09 1983-12-22 Beckman Instruments, Inc. Assemblage d'attache d'un rotor de centrifugeuse

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2368394A (en) * 1943-05-03 1945-01-30 Young Radiator Co Apparatus for flanging openings in tube type headers

Also Published As

Publication number Publication date
DE3744046A1 (de) 1989-07-06
DE3744046C2 (de) 1994-11-24
ATE117600T1 (de) 1995-02-15
ES2068195T3 (es) 1995-04-16
EP0322722A3 (en) 1990-09-19
EP0322722A2 (fr) 1989-07-05

Similar Documents

Publication Publication Date Title
DE3545554C2 (fr)
DE7027912U (de) Rohrfoermiger blindniet.
DE2309353A1 (de) Nietvorrichtung
EP1346160B1 (fr) Elément tourillon présentant une partie tige et une tête sphérique, composant d'assemblage et procédé de fabrication d'un tel élément tourillon
EP0137961B2 (fr) Dispositif extracteur pour une brique pour lavage au gaz
DE3443217A1 (de) Presse zum spanlosen formen
DE2804995A1 (de) Manuell betaetigbares werkzeug zur rohrerweiterung
EP0322722B1 (fr) Procédé et appareil pour le formage de collerettes latérales sur des tubes en tôle
DE4391315C1 (de) Vorrichtung zum Aushalsen von Rohren
DE102013008134A1 (de) Verfahren zum Setzen eines Blindniets, Blindniet sowie Zugkopf zur Aufnahme eines Blindniets
EP0876859A2 (fr) Procédé et appareil de fabrication de carters d'essieu pour véhicule automobile
DE7035328U (de) Vorrichtung zum setzen von nieten.
DE2747166A1 (de) Verfahren zum fliesspressen zylindrischer seitlicher ansaetze an ein rohrfoermiges glied mit mindestens einer seitlichen oeffnung
DE2931811A1 (de) Vorrichtung zum einfuehren eines brennelements in einen brennstabverband eines kernreaktors
DE1299409B (de) Werkzeug zum Einpressen einer starren Innenhuelse in die Bohrung eines von einer starren Aussenhuelse umschlossenen elastischen Ringkoerpers
DE3917507C2 (de) Einrichtung zum automatischen Wechseln von Werkzeugen zum Herstellen von Blindnietverbindungen
DE60212359T2 (de) Stanznietsetzmaschine
DE2548853B2 (de) Vorrichtung zur Herstellung von metallenen Ringrohlingen
DE2550617C3 (de) Vorrichtung zur Herstellung von metallenen Ringrohlingen
DE2726759C3 (de) Einrichtung zum Greifen und Anheben vertikal angeordneter, länglicher Bauelemente aus der aktiven Zone eines Kernreaktors
DE9216760U1 (de) Markiergerät zum Anbringen von Markierungen an Rohrmänteln
EP0151395B1 (fr) Douille obturée par une pièce rapportée, procédé et dispositif en vue de sa fabrication
DE19928703B4 (de) Verfahren und Vorrichtung zur Herstellung eines Bolzens
DE3426066C2 (de) Spannvorrichtung an einem elektrischen Schweißgerät
DE508886C (de) Verfahren zum absatzweisen Ziehen von Rohren ueber einem Dorn

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH ES GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH ES GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19901120

17Q First examination report despatched

Effective date: 19920911

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

Owner name: WEBA WESTERBARKEY GMBH & CO. KG.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH ES FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 117600

Country of ref document: AT

Date of ref document: 19950215

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950314

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2068195

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
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
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19981127

Year of fee payment: 11

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

Ref country code: CH

Payment date: 19981214

Year of fee payment: 11

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

Ref country code: GB

Payment date: 19981215

Year of fee payment: 11

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

Ref country code: ES

Payment date: 19981218

Year of fee payment: 11

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

Ref country code: NL

Payment date: 19981231

Year of fee payment: 11

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

Ref country code: SE

Payment date: 19990104

Year of fee payment: 11

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

Ref country code: BE

Payment date: 19990111

Year of fee payment: 11

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

Ref country code: LU

Payment date: 19990121

Year of fee payment: 11

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: 19991221

Ref country code: GB

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

Effective date: 19991221

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 NON-PAYMENT OF DUE FEES

Effective date: 19991222

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: 19991231

Ref country code: CH

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

Effective date: 19991231

Ref country code: BE

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

Effective date: 19991231

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

Ref country code: AT

Payment date: 20000315

Year of fee payment: 12

BERE Be: lapsed

Owner name: WEBA WESTERBARKEY G.M.B.H. & CO. K.G.

Effective date: 19991231

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

Ref country code: NL

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

Effective date: 20000701

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19991221

EUG Se: european patent has lapsed

Ref document number: 88121335.9

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

Ref country code: FR

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

Effective date: 20000831

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20000701

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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: 20001221

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 NON-PAYMENT OF DUE FEES

Effective date: 20001222

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20010113

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051221