EP0168331B1 - Maschine zum Biegen von Rohren, Stangen oder Profilen - Google Patents

Maschine zum Biegen von Rohren, Stangen oder Profilen Download PDF

Info

Publication number
EP0168331B1
EP0168331B1 EP85420086A EP85420086A EP0168331B1 EP 0168331 B1 EP0168331 B1 EP 0168331B1 EP 85420086 A EP85420086 A EP 85420086A EP 85420086 A EP85420086 A EP 85420086A EP 0168331 B1 EP0168331 B1 EP 0168331B1
Authority
EP
European Patent Office
Prior art keywords
bending
axis
mandrel
jaw
machine
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
EP85420086A
Other languages
English (en)
French (fr)
Other versions
EP0168331A2 (de
EP0168331A3 (en
Inventor
Jean Lafrasse
Jean Paul Chastan
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.)
Eaton Leonard Picot SA
Original Assignee
Eaton Leonard Picot SA
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 Eaton Leonard Picot SA filed Critical Eaton Leonard Picot SA
Priority to AT85420086T priority Critical patent/ATE53950T1/de
Publication of EP0168331A2 publication Critical patent/EP0168331A2/de
Publication of EP0168331A3 publication Critical patent/EP0168331A3/fr
Application granted granted Critical
Publication of EP0168331B1 publication Critical patent/EP0168331B1/de
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
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member

Definitions

  • the present invention relates to a machine intended for bending tubes, bars or profiles. More particularly, this invention relates to a machine in which the bending tool comprises a rotary roller forming a vertical axis, having an annular groove and supporting a first jaw, a second jaw carried by a bending arm pivotally mounted around the aforementioned vertical axis, the second jaw being able to be brought opposite the first jaw so as to grip the tube or the like to bend, and a support member able to be applied against the tube or the like to bend, behind the jaws , and in which the assembly comprising the forming roller and the first associated jaw, as well as the bending arm pivoting with the second jaw, is carried by a movable bending head, under the action of control means, in the horizontal direction transversely to the machine frame and to the axis along which the tube or the like to be bent is positioned, while the support member is mounted directly on the machine frame, without connection with the bending head.
  • the bending tool comprises a rotary roller forming a
  • a bending machine of this kind is known from document DE-A-2 910 174.
  • the movable bending head in the transverse direction of the frame supports part of the bending tool, that is to say - say the forming roller with the first jaw and the bending arm, carrying the second jaw.
  • the tube to be bent is pinched, in its part remaining rectilinear, by a clamping mandrel carried by a carriage movable in longitudinal direction, which keeps this part of the tube positioned along a determined horizontal axis, parallel to the longitudinal direction of the frame of the machine. .
  • the part of the tube to be bent is clamped between the two jaws and driven forward by the rotation of the bending arm, so as to wind in the groove of the forming roller.
  • the angle of rotation of the arm determines the angle of bending
  • the radius of the forming roller determines the radius of the elbow that the tube will ultimately exhibit.
  • the support member applied against the tube behind the part to be bent avoids any unwanted deformation of the tube outside the part to be bent.
  • the construction according to document DE-A-2 910 174 comprises a single means for controlling the transverse movement of the bending head, for an initial positioning of this head as a function of the bending radius.
  • the arrangement known here recalled practically prohibits any rotation of the tube between two successive bends, in particular in the case of a tube of non-circular section, as well as any rapid change of jaws leaving the tube in place.
  • the object of the present invention is to remedy the drawbacks of document DE-A-2 910 714, by providing an improved control of the bending head which facilitates the orientation of the tube and the change of tools.
  • the invention relates to a machine for bending tubes, bars or profiles, of the kind indicated in the introduction, in which the support member is constituted by a movable horizontal strip, remaining parallel to it- meme, in the direction of its approach or its distance from the horizontal axis along which is positioned the tube or the like to be bent, is in which the means for controlling the transverse movement of the bending head, carrying the forming roller, the bending arm and is two jaws, comprise on the one hand a first control means for the initial positioning of the bending head, placing the vertical axis of the forming roller in the appropriate position as a function of the radius of this roller, and d 'secondly a second constant stroke control means for the offset of said bending head, adapted to move the axis of the forming roller from the axis along which is positioned the tube or the like to be bent.
  • the support member is constituted by a movable horizontal strip, remaining parallel to it- meme, in the direction of its approach or its distance from the horizontal axis along which is
  • the initial position adjustment of the vertical axis of the forming roller, as a function of the diameter of this roller, can be carried out without influencing the position of the strip which is mounted on a support independent of the bending head.
  • the offset control of the bending head provided by the constant stroke control means, makes it possible to release the tube from the forming roller and from the first jaw. , which makes it possible to easily modify the orientation of the tube between two successive bending operations, even if it is a tube of for example square section, without influencing the initial position imposed on the bending head by the other means of control.
  • the offset of the bending head also facilitates a possible change of jaw between two successive bending operations.
  • the means for controlling the transverse movement of the bending head comprise, on the one hand, a mechanism with threaded rod and nut, with rotary drive of one of these elements, for the initial positioning of the bending head, and on the other hand a double-acting constant stroke cylinder, for the offset of said bending head.
  • the threaded rod is rotatably mounted and is engaged with a nut secured to the bending head, this threaded rod being linked in rotation with a primary drive shaft with respect to which it is axially displaceable, while that the double-acting cylinder, arranged coaxially with the threaded rod, comprises an annular piston axially linked to the threaded rod.
  • the annular piston is advantageously integral with a sleeve which slides in the two flanges of the jack and which is linked in transition with the rotary threaded rod by means of at least one bearing.
  • the machine for bending tubes shown in the drawing, comprises an elongated frame (1) which supports longitudinal guides along which a carriage (2) can be moved in the horizontal direction. At the upper part of the carriage (2) is provided a clamping mandrel (3), able to pinch the bending tube (4) while maintaining it along a determined horizontal axis (5), while allowing the advancement of this tube (4) along the axis (5) and its rotation around said axis (5).
  • a bending head (6) mounted horizontally movable, in a direction transverse to the frame (1).
  • the tool which allows the bending to be carried out mainly comprises: a forming roller (7) with a vertical axis (8), having an annular groove (9) and supporting a first jaw (10) -a second jaw (11), carried by a bending arm (12) pivotally mounted about the vertical axis (8) a strip (13) extending parallel to the horizontal axis (5) and having a longitudinal groove (14).
  • This tool is completed by an olive (15) placed at the end of a horizontal rod (16) which passes through the clamping mandrel (3) and is introduced into the tube to be bent (4).
  • the bending head (6) to which the vertical axis (8) is linked, is slidably mounted, by a dovetail part (17), along two slides with inclined faces (18, 19) fixed at the front of the frame (1) see in particular figure 3.
  • an electric motor (20) which, by means of a reduction gear speed (21), rotates a primary shaft (22) hollow over a part of its length where it has internal longitudinal grooves. These latter are engaged with a grooved part (23) of a rotary threaded rod (24), coaxial with the shaft (22) and itself engaged with a nut (25) immobilized in rotation in the bending head.
  • the housing of the screw reducer (21) is integral with the rear flange (26) of a double-acting cylinder (27) whose body (28), coaxial with the shaft (22), is closed at the front by another flange (29).
  • an annular piston (30) integral with a sleeve (31) which slides in the two flanges (26, 29).
  • the sleeve (31) is closed by a cover (32) which is crossed by the primary shaft (22).
  • the front end of the sleeve (31) is linked in translation with the threaded rod (24), by means of bearings (33) and suitable stops.
  • Channels (34, 35) are drilled in the two flanges (26, 29), to supply fluid to the two chambers of the jack (27) located on either side of the annular piston (30-see FIG. 2.
  • the strip (13) is movable relative to the frame (1) in a longitudinal direction, under the control of a feed cylinder (38), and also in a transverse direction, under the control of a cylinder approach (39).
  • the bending head (6) with the forming roller (7) and the bending arm (12), is adjustable in transverse position by means of the motor (20), via the reduction gear (21), the primary shaft (22), threaded rod (24) and nut (25).
  • the transverse movement of the bending head (6) thus controlled, makes it possible to position the vertical axis (8) adequately as a function of the diameter of the forming roller (7), itself chosen according to the characteristics desired for the elbow to train.
  • the jack (27) allows the bending head (6) to be moved, still in transverse direction, over a determined stroke (C) of so as to obtain an offset of this head (6), allowing the free rotation of the tube to be bent (4), in particular in the case of a tube of non-circular section, for example a tube (4) of square section.
  • the displacement of the strip (13) is controlled independently of that of the bending head (6), by means of two jacks (38, 39).
  • the jack (36) makes it possible to raise the second jaw (11), to place it opposite the first jaw (10), or to lower it by moving it away from the first jaw (10), in order to allow the introduction of the bending tube (4).
  • FIGS. 4 to 12 show the successive stages of the double bending of a tube (4) of square section, on the bending machine object of the invention.
  • the initially straight tube (4) is assumed, at the start, to be positioned in an angular position defined along the horizontal axis (5), and clamped by the mandrel (3) as well as, in its part to be bent first, by the two jaws (10, 11).
  • the bending arm (12) is initially oriented perpendicular to the axis (5), and the strip (13) is applied against the tube (4), behind the second jaw (11) - see Figures 4 and 5.
  • the first bending of the tube (4) is then carried out, by controlling the rotation of the bending arm (12) around the vertical axis (8) according to the desired angle, the tube (4) then curving while being guided in the groove (9) of the forming roller (7) -see figure 6. Then, the second jaw (11) is retracted, and the bending arm (12) is returned to its initial angular position-see figure 7. The strip (13) is moved away from the tube (4) which then has a first bend (40). The carriage with the mandrel (3) is advanced, so as to push the tube (4) forward, releasing the elbow (40) from the roller (7) - see Figure 8.
  • the next phase consists in actuating the jack (27) in a given direction, which shifts the entire bending head (6) by the distance (C) relative to the horizontal axis (5) - see figure 9.
  • the tube (4) thus freed, is turned using the clamping mandrel (3) around the axis (5) according to the arrow (41 ), for example at an angle of rotation of 180 ° so that its end previously bent to the right is turned to the left-see Figures 9 and 10.
  • the bending head (6) is reset to its initial position by actuating the jack (27) in the opposite direction; the second jaw (11) is again clamped against the tube (4) - see figure 11.
  • the strip (13) is also applied again against the tube (4), and the bending arm (12) is actuated as previously.
  • a second bend (42) is thus produced, in a direction opposite to the first and, in the case taken here for example, situated in the same plane as the first bend (40) - see FIG. 12.
  • the offset of the bending head (6), controlled by the jack (27), can also be used to facilitate a change of jaws (10), for example during the production of close bends requiring the installation of recovery jaw on the forming roller (7).
  • the machine according to the invention applies not only to the bending of the tubes (4) of all sections, but also to the bending of bars, profiles and other similar objects.
  • the invention is not limited to the only embodiment of this machine for bending tubes, bars or profiles which has been described above, by way of example; on the contrary, it embraces all of the variant embodiments and applications respecting the same principle.
  • the jack (27) can be replaced by any equivalent means, making it possible to control an offset of the bending head (6).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Claims (5)

1. Maschine zum Biegen von Rohren, Stäben oder Profilmaterial, bei der die Biegeausrüstung eine eine ringförmige Vertiefung (9) aufweisende und eine erste Backe (10) tragende drehbare Biegeschablone (7) mit vertikaler Achse (8), eine von einem um die vorgenannte vertikale Achse (8) schwenkbar angeordneten Biegearm (12) getragene zweite Backe (11), die derart gegenüber die erste Backe (10) bringbar ist, daß das zu biegende Rohr oder dergleichen einspannbar ist, und ein gegen das zu biegende Rohr (4) oder dergleichen ansetzbares Haltemittel (13) hinter den Backen (10, 11) enthält, und bei der die die Biegeschablone (7) und die assoziierte erste Backe (10) sowie den schwenkbaren Biegearm (12) mit der zweiten Backe (11) enthaltende Anordnung von einem Biegekopf (6) getragen ist, der unter dem Einfluß von Betätigungsmitteln (20 bis 25, 27) in horizontaler Richtung quer zum Gestell oder Bett (1) der Maschine und zur Achse (5), entlang der das zu biegende Rohr (4) oder dergleichen positioniert ist, bewegbar ist, während das Haltemittel (13) ohne Verbindung mit dem Biegekopf (6) direkt auf dem Gestell oder Bett (1) der Maschine angeordnet ist, dadurch gekennzeichnet, daß das Haltemittel von einer horizontalen Gleitschiene (13) gebildet ist, die, wobei sie zu sich selbst parallel bleibt, im Sinne ihrer Annäherung an die oder ihrer Entfernung von der horizontalen Achse (5) bewegbar ist, entlang der das zu biegende Rohr (4) oder dergleichen positioniert ist, und daß die Betätigungsmittel für die Querbewegung des die Biegeschablone (7), den Biegearm (12) und die beiden Backen (10, 11) tragenden Biegekopfes (6) einerseits ein erstes Betätigungsmittel (20 bis 25) für die Anfangspositionierung des Biegekopfes (6), um die vertikale Achse (8) der Biegeschablone (7) in die geeignete Position in Abhängigkeit vom Radius dieser Schablone (7) zu bringen und andererseits ein zweites Betätigungsmittel (27) mit konstantem Weg für die Verstellung des genannten Biegekopfes (6), geeignet zum Verstellen der Achse (8) der Beigeschablone (7) gegenüber der Achse (5), entlang der das zu biegende Rohr (4) oder dergleichen positioniert ist, aufweisen.
2. Maschine zum Biegen von Rohren, Stäben oder Profilmaterial gemäß Anspruch 1, dadurch gekennzeichnet, daß die Betätigungsmittel für die Querbewegung des Biegekopfes (6) einsrseits eine Einrichtung mit Gewindestange (24) und Mutter (25) mit Rotationsantrieb des einen der beiden Elemente für die Anfangspositionierung des Biegekopfes (6) und andererseits einen doppeltwirkenden Zylinder (27) mit konstantem Verstellweg für die Verstellung des genannten Biegekopfes (6) aufweist.
3. Maschine zum Biegen von Rohren, Stäben oder Profilmaterial gemäß Anspruch 2, dadurch gekennzeichnet, daß die Gewindestange (24) drehbar angeordnet und in Eingriff mit einer mit dem Biegekopf (6) verbundenen Mutter (25) steht, welche Gewindestange (24) mit einer Antriebs-Eingangswelle (22) verbunden ist, in Bezug auf die sie axial bewegbar ist, während der koaxial zu der Gewindestange (24) angeordnete doppeltwirkende Zylinder (27) einen axial mit der Gewindestange (24) verbundenen ringförmigen Kolben (30) umfaßt.
4. Maschine zum Biegen von Rohren, Stäben oder Profilmaterial gemäß Anspruch 3, dadurch gekennzeichnet, daß der ringförmige Kolben (30) des doppeltwirkenden Zylinders (27) mit einer Manschette oder Hülse (31) verbunden ist, die in den beiden Flanschen (26, 29) des Zylinders (27) läuft und die translatorisch mit der drehbaren Gewindestange (24) verbunden ist unter Vermittlung wenigstens eines Wälzlagers (33).
5. Maschine zum Biegen von Rohren, Stäben oder Profilmaterial gemäß Anspruch 3 oder 4, dadurch gekennzeichnet, daß die zur Anfangspositionierung des Biegekopfes (6) mit der Gewindestange (24) drehbar verbundene Eingangswelle (22) anhand einer Motor-Getriebe-Gruppe (20, 21) selbst zur Rotation angetrieben ist.
EP85420086A 1984-07-10 1985-05-09 Maschine zum Biegen von Rohren, Stangen oder Profilen Expired - Lifetime EP0168331B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85420086T ATE53950T1 (de) 1984-07-10 1985-05-09 Maschine zum biegen von rohren, stangen oder profilen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8411321A FR2567429B1 (fr) 1984-07-10 1984-07-10 Machine pour le cintrage de tubes, barres ou profiles
FR8411321 1984-07-10

Publications (3)

Publication Number Publication Date
EP0168331A2 EP0168331A2 (de) 1986-01-15
EP0168331A3 EP0168331A3 (en) 1986-10-08
EP0168331B1 true EP0168331B1 (de) 1990-06-20

Family

ID=9306204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85420086A Expired - Lifetime EP0168331B1 (de) 1984-07-10 1985-05-09 Maschine zum Biegen von Rohren, Stangen oder Profilen

Country Status (8)

Country Link
US (1) US4625531A (de)
EP (1) EP0168331B1 (de)
JP (1) JPS6138720A (de)
AT (1) ATE53950T1 (de)
CA (1) CA1291697C (de)
DE (1) DE3578316D1 (de)
ES (1) ES8607768A1 (de)
FR (1) FR2567429B1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2624038A1 (fr) * 1987-12-02 1989-06-09 Snecma Outillage de cintrage de canalisations et procede de fabrication d'une canalisation a embout soude
US4959984A (en) * 1989-08-17 1990-10-02 Ap Parts Manufacturing Company Precision bending apparatus
JP2947362B2 (ja) * 1989-09-07 1999-09-13 臼井国際産業株式会社 チューブの曲げ装置
GB2247202B (en) * 1990-07-26 1995-01-25 Usui Kokusai Sangyo Kk Method and apparatus for bending a small diameter metal tube
US5570508A (en) * 1993-12-03 1996-11-05 Itt Industries, Inc. Method of making a high strength automotive seat frame
US6009737A (en) * 1997-07-17 2000-01-04 Arvin Industries, Inc. Tube bender
US6155091A (en) * 1999-02-26 2000-12-05 Arvin Industries, Inc. Mandrel assembly for tube-bending apparatus
NO311638B1 (no) 1999-05-21 2001-12-27 Skipskonsult As Fremgangsmåter for fremstilling av sammenhengende strekk av sirkul¶rsylindriske legemer, anvendelse av et verktöy, og enrörlengde og rördeler
US6434995B1 (en) 1999-10-15 2002-08-20 Usui Kokusai Sangyo Kaisha Limited Method of bending small diameter metal pipe and its apparatus
ES2303540T3 (es) * 2002-07-13 2008-08-16 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Maquina de doblar tubos con herramienta de doblar y dispositivo de retroceso de mandril.
JP4515056B2 (ja) * 2003-08-01 2010-07-28 三桜工業株式会社 管の曲げ加工装置
IT1396456B1 (it) * 2009-11-24 2012-11-23 Piegatrici Macch Elettr Attrezzatura per la piegatura di prodotti metallici oblunghi, quali barre, tondini, o fili metallici, e relativo procedimento di piegatura
ITRM20120619A1 (it) * 2012-12-06 2014-06-07 Libero Angelo Massaro Macchina perfezionata per curvare tubi metallici, sia a destra che a sinistra rispetto alla direzione di introduzione del tubo.
ITRM20130259A1 (it) * 2013-05-02 2014-11-03 Cml Int Spa Macchina curvatrice del tipo a matrice e contromatrice per curvare a destra e a sinistra un pezzo allungato
US9908169B2 (en) * 2013-09-06 2018-03-06 Winton Machine Company Process to cut coax cable
CN110202029B (zh) * 2019-06-18 2020-09-01 深圳市朗奥洁净科技股份有限公司 一种管材自动化数控多段折弯装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2740454A (en) * 1952-10-02 1956-04-03 Western Electric Co Apparatus for making diagonal twisted or skew bends in wave guide tubing
DE1962590A1 (de) * 1969-12-13 1971-06-24 Hilgers Maschinen U App Bauans Rohrbiegemaschine
DE2101162A1 (de) * 1971-01-12 1972-07-20 J. Banning Ag, 4700 Hamm Rohrbiegemaschine
DE2537382A1 (de) * 1975-08-22 1977-03-03 Babcock Ag Vorrichtung zum biegen von rohren
US4063441A (en) * 1975-09-19 1977-12-20 Eaton-Leonard Corporation Apparatus for bending tubes
US4126030A (en) * 1977-10-03 1978-11-21 Eaton-Leonard Corporation Retractable pressure die
JPS5930325B2 (ja) * 1977-12-28 1984-07-26 日本電気株式会社 アイソレ−タ
US4178788A (en) * 1978-03-24 1979-12-18 Eaton-Leonard Corporation Adjustable clamp die
DE2910174A1 (de) * 1979-03-15 1980-09-25 Benteler Werke Ag Rohrbiegemaschine mit einem mit mehreren biegewerkzeugen versehenen biegekopf
JPS5858170B2 (ja) * 1979-06-20 1983-12-23 株式会社神戸製鋼所 シヤ−プレスの刃物交換装置

Also Published As

Publication number Publication date
FR2567429B1 (fr) 1992-03-27
EP0168331A2 (de) 1986-01-15
EP0168331A3 (en) 1986-10-08
FR2567429A1 (fr) 1986-01-17
ES544059A0 (es) 1986-06-16
JPS6138720A (ja) 1986-02-24
ATE53950T1 (de) 1990-07-15
US4625531A (en) 1986-12-02
CA1291697C (fr) 1991-11-05
DE3578316D1 (de) 1990-07-26
ES8607768A1 (es) 1986-06-16

Similar Documents

Publication Publication Date Title
EP0168331B1 (de) Maschine zum Biegen von Rohren, Stangen oder Profilen
EP0892686B1 (de) Maschine zum biegen oder wölben von profilen und biegekopf für solche maschine
FR2588785A1 (fr) Appareil a cintrer pour le formage automatique de tubes
FR2530980A1 (fr) Cintreuse a courbures multiples
EP2177292A1 (de) Vorrichtung zum Richten und Zuführen von einem halbstarren Materialstreifen in eine Maschine
FR2489182A1 (fr) Cintreuse a tubes
FR2578764A1 (fr) Installation de pliage
FR2554021A1 (fr) Machine automatique perfectionnee pour cambrer selon une configuration speciale des elements minces et rectilignes, et notamment des fils metalliques
WO2008142252A2 (fr) Unite de cintrage d'un tub
EP1820647A2 (de) Maschine und Verfahren zum Markieren von Formteilen
EP0281488B1 (de) Drehender Biegekopf für Rohrbiegemaschine
FR2685239A1 (fr) Machine pour l'usinage de pieces a partir de profiles de grande longueur.
WO1999038626A1 (fr) Machine a cintrer les tubes et son dispositif a barillet
EP0517637B1 (de) Biegekopf mit Mehrfachwerkzeugen für eine Drahtbiegemaschine
EP0952896B1 (de) Vorrichtung zum biegen von rohren mit kleinen durchmesser
FR2737674A1 (fr) Machine a cintrer les tubes avec dispositif de poussee
EP0320408B1 (de) Steuerungsvorrichtung für die Reglette einer Rohrbiegemaschine
EP0043750A1 (de) Vorrichtung zum Formen von Rohren mit kleinem Durchmesser
FR2659879A1 (fr) Dispositif de dressage d'un fil metallique.
FR2483269A1 (fr) Ouvreur de bobine
FR2685228A1 (fr) Machine a cintrer un element du type tige, barre, tube, fil ou analogue.
EP3458253B1 (de) Verfahren und vorrichtung zur umschlagung eines reifenrohlings
FR2495972A1 (fr) Machine a cintrer les tubes
EP0109905B1 (de) Vorrichtung zum Biegen von Rohren
FR2749199A1 (fr) Machine de cambrage de fils metalliques

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

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

17P Request for examination filed

Effective date: 19870122

17Q First examination report despatched

Effective date: 19880121

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

Owner name: EATON LEONARD PICOT S.A.

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 DE GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 53950

Country of ref document: AT

Date of ref document: 19900715

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILANO S.P.A.

REF Corresponds to:

Ref document number: 3578316

Country of ref document: DE

Date of ref document: 19900726

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

ITTA It: last paid annual fee
26N No opposition filed
EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 85420086.2

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

Ref country code: LU

Payment date: 19950501

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: 19950505

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: 19950510

Year of fee payment: 11

Ref country code: BE

Payment date: 19950510

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: 19950515

Year of fee payment: 11

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

Ref country code: DE

Payment date: 19950516

Year of fee payment: 11

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

Ref country code: AT

Payment date: 19950530

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: 19950531

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: 19960509

Ref country code: GB

Effective date: 19960509

Ref country code: AT

Effective date: 19960509

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

Ref country code: SE

Effective date: 19960510

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

Ref country code: LI

Effective date: 19960531

Ref country code: CH

Effective date: 19960531

Ref country code: BE

Effective date: 19960531

BERE Be: lapsed

Owner name: S.A. EATON LEONARD PICOT

Effective date: 19960531

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

Ref country code: NL

Effective date: 19961201

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

Effective date: 19960509

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: DE

Effective date: 19970201

EUG Se: european patent has lapsed

Ref document number: 85420086.2

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

Effective date: 19961201