EP0039322B1 - Dispositif à plier des feuilles de tôle - Google Patents

Dispositif à plier des feuilles de tôle Download PDF

Info

Publication number
EP0039322B1
EP0039322B1 EP81890048A EP81890048A EP0039322B1 EP 0039322 B1 EP0039322 B1 EP 0039322B1 EP 81890048 A EP81890048 A EP 81890048A EP 81890048 A EP81890048 A EP 81890048A EP 0039322 B1 EP0039322 B1 EP 0039322B1
Authority
EP
European Patent Office
Prior art keywords
crank arm
lever
cylinder
bending
pivot
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
Application number
EP81890048A
Other languages
German (de)
English (en)
Other versions
EP0039322A1 (fr
Inventor
Hans Aschauer
Günter Funk
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.)
Cessione salvagnini Transferica SpA
Original Assignee
Voestalpine AG
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 Voestalpine AG filed Critical Voestalpine AG
Publication of EP0039322A1 publication Critical patent/EP0039322A1/fr
Application granted granted Critical
Publication of EP0039322B1 publication Critical patent/EP0039322B1/fr
Expired 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work
    • B21D5/045—With a wiping movement of the bending blade

Definitions

  • the invention relates to a device for folding metal sheets with at least one bending tool, which is carried by the coupling of a drivable quadrangle, which consists of two arms mounted in a frame and the coupling connecting these arms, and with an additional actuator for the quadrilateral joint .
  • a known folding device (DE-A1-28 39 978) an upper and a lower bending tool are provided, these bending tools being arranged on the opposite legs of a cross-sectionally C-shaped support and with this support in the vertical direction compared to a pair of Counter tools can be adjusted, which also serve to clamp the workpiece. Because of the linear drive movement of the bending tools, comparatively high bending forces have to be applied in this known device. More serious, however, is the disadvantage that, due to the tool carrier having a C-shaped cross section and its vertical drive movement, only certain bending angles can be achieved. The possible design of the workpiece is therefore limited.
  • the invention is therefore based on the object of avoiding these deficiencies and improving a device for folding sheet metal sheets of the type described at the outset such that the bending tool can be moved relative to a counter-tool according to the desired workpiece shape by means of an advantageous drive, on the one hand with low bending forces and low drive power to be able to make ends meet and on the other hand to ensure extensive freedom with regard to the shaping of the workpiece.
  • the invention solves this problem in that the additional actuator for the four-bar linkage serves to shift the articulation point of one of the arms of the four-bar linkage designed as crank arms on the frame or to change the length of a crank arm.
  • the additional displacement of the articulation point or the additional change in length of a crank arm in cooperation with a conventional rotary drive for a crank arm of the quadrangle with simple constructive means ensures that the usual working movement of the bending tool given by the coupling movement results in a drive movement essentially transverse to this working movement can be superimposed without having to move a supporting frame for the four-bar linkage, so that the tool path can be adapted to the most varied of bending angles and bending radii. This ensures that the bending tool can always be moved transversely to the workpiece, which ensures a favorable introduction of the bending forces over the entire bending angle. The bending forces can thus be kept comparatively small.
  • the bending tool In the majority of the bends that occur, the bending tool is first moved transversely to the surface of the sheet metal strip to be bent and then must be adjusted in an inclined path in accordance with the desired bending angle, it being sufficient to divide the working movement of the bending tool into two sections, one for the Bend or have the finished bending advantageous course.
  • this can be achieved simply in that the actuating drive can be actuated to move the anchoring point or to change the length of one crank arm as a function of the rotational position of the other, drivable crank arm.
  • such a three-part movement path for the bending tool can be realized in that the crank arm, which is adjustable in terms of its articulation point or its length, is adjusted by the other crank arm via the actuating drive after reaching a stop-limited end position.
  • the four-bar linkage is thus driven exclusively in the sense of a transverse movement of the bending tool, so that the last path section of the bending tool actually runs transverse to the first path section, while the middle path section assumes an intermediate inclination.
  • These path sections ensure an advantageous bending of the workpiece over bending angles that go far beyond 90 °.
  • crank arm in this regard is designed as an actuating cylinder.
  • other constructive solutions are also possible, but these are more complex.
  • the crank arm can be articulated on a lever which is rotatably mounted in the frame in order to shift its articulation point.
  • this lever only has to be pivoted accordingly in order to obtain the desired displacement of the articulation point.
  • the articulation point for the lever forming a crank arm can be designed with two arms and cooperate with a driving lever connected to the other crank arm .
  • the articulation point for the lever forming a crank arm need only be adjusted with the aid of a cylinder if the drive for the other crank arm is switched off, for example by a stop has been.
  • Such an actuating cylinder for the lever serving to shift the articulation point must of course not hinder the drive movement of the lever by the driving lever of the driven crank arm, which could be achieved, for example, by venting this actuating cylinder.
  • this displacement guide for the actuating cylinder can simply be designed as a support cylinder arranged in series with the actuating cylinder. This support cylinder is ventilated during the drive of the lever for displacing the articulation point via the driver lever and is then held in its stroke position by blocking the pressure medium supply and discharge.
  • this measure has the advantage that the support cylinder can be ventilated as a function of the pressure applied to the cylinder interacting with the transmission body.
  • the resulting load on the lever for displacing the articulation point ensures that the bending tool cannot be pushed out of its predetermined path due to the resilient restoring forces of the workpiece after the articulation point displacement has been released.
  • the possibility of movement of the lever for the displacement of the articulation point is only released when the driver lever presses firmly against this lever.
  • the illustrated device for folding sheet metal has a frame 1, in the side walls of which the bending tools 2 and 3 are mounted via four-bar linkages 4.
  • These consisting of two crank arms 5 and 6 as well as a coupling 7 connecting these crank arms 5 and 6 coupling quadrilaterals 4 carry the bending tools 2 and 3 on their coupling 7, which is designed as a box girder and arranged between the side walls of the frame 1.
  • the crank arms 5 and 6 consist from laterally arranged handlebars or the like, so that a free, unobstructed passage between the coupling 7 for the sheet metal 8 to be processed is ensured.
  • crank arm 6 is not mounted in the frame 1, but rather on a lever 14 which is seated on a shaft 15 rotatably held in the frame 1.
  • the lever 14 is designed with two arms, a drive connection being able to be established between the lever arm 16 and a driving lever 17 assigned to the crank arm 5 via a transmission body 18 which is adjustable relative to the lever arm 16.
  • the driving lever 17 strikes the transmission body 18 after a corresponding rotary adjustment of the crank arm 5 and pivots the lever 14 in accordance with the given transmission ratios.
  • the additional displacement of the articulation point 13 of the crank arm 6 causes a change in the path of movement for the bending tool 2.
  • the bending tool covers a path corresponding to the coupling movement, which 4 in FIG. 4, this web 20 is superimposed by a transverse movement caused by the pivoting of the lever 14, so that the pivoting tool 2 is moved from the position shown in broken lines in FIG.
  • the path covered by the bending tool 2 is designated by 21.
  • the bending tool 2 can thus be moved along two path sections 20 and 21, which initially cause the sheet metal plate 8 clamped between two holders 22 serving as counter tools to be bent into the dot-dash position and then to finish-bend it with a changed path of movement.
  • the bending forces exerted by the bending tool 2 on the metal sheet 8 therefore always act in a favorable manner on the metal sheet, so that it is possible to get by with comparatively low bending forces.
  • an additional possibility of movement for the bending tool is required according to FIG. 5, namely in a direction transverse to the movement path 20.
  • This additional possibility of movement of the bending tool can be achieved by simply adjusting the crank arm 6 via the lever 14.
  • the shaft 15 is articulated via an arm 23 to an actuating cylinder 24 which, when subjected to a corresponding action, pivots the lever 14 further when the radial arm 10 abuts the stop 12 and the drive for the crank arm 5 is thereby interrupted.
  • the crank arm 5 is held in place, the rotary movement of the lever 14 results in a transverse movement for the bending tool, as is indicated in FIG. 5 by the track section 25.
  • the bending angles can therefore be freely selected in a wide range.
  • the actuating cylinder 24 is therefore not articulated to the frame 1, but via a support cylinder 26 which is in series with the actuating cylinder 24 and is connected to it in a manner fixed against displacement. If the support cylinder 26 is ventilated, the displaceable support of the actuating cylinder 24 is ensured due to the free displaceability of its piston. When the cylinder 26 is locked by closing the pressure medium lines, the actuating cylinder 24 is supported firmly, so that the arm 23 and the shaft 15 can be pivoted. By the stop of the driving lever 17 on the lever arm 16 of the lever 14 and by the stop of the radial arm 10 on the stop 12, the transition points between the individual movement path sections 20, 21 and 25 can be clearly predetermined. The movement paths of the bending tools can therefore also be adapted precisely to certain conditions.
  • the support cylinder 26 In order for the lever 14 to be held in place during its drive breaks, only the support cylinder 26 needs to be fixed in its stroke position, which can be done simply by shutting off the pressure means. If the support cylinder 26 is ventilated in an uncontrolled manner when the driving lever 17 strikes the transmission body 18 of the lever arm 16, the bending tool can give in under certain circumstances due to the resilient restoring forces of the partially bent edge strip of the metal sheet 8. This yielding can be effectively suppressed if the support cylinder 26 is ventilated as a function of the pressure applied to the cylinder 19 interacting with the transfer body 18. The support cylinder 26 is therefore only released when a corresponding force from the driver lever 17 acts on the lever arm 16, which consequently can no longer move against the drive direction.
  • the cylinder 19 also allows the transmission body 18 to be withdrawn from the path of movement of the driving lever 17, so that the path section 21 can be skipped. This ensures even greater freedom with regard to the shape of the metal sheets 8 to be folded.
  • the bending tools 2 and 3 not only work together with the brackets 22 that clamp the metal sheets 8 to be bent, but if the bending tools 2 and 3 are used for a common bending process, grooves or folds can also be bent, as shown in FIGS. 6 and 7 is shown.
  • a groove is produced in the metal sheet 8 according to FIG. 6, the bending tool 3 not being used as a counter-tool for the bending tool 2, but the bending tool 3.
  • the sheet 8 is not bent back around a counter tool, but freely, which is only possible if one of the two bending tools can take over the task of a holder for the sheet. Due to the possibilities of movement of the bending tools 2 and 3, this is easily possible, so that folds can also be bent.
  • crank arm 6 can be changed in length by means of an actuator.
  • the crank arm 6 consists of an actuating cylinder 27, which can again be provided on both sides of the coupling 7.
  • the bending tool 2 is forced in a comparable manner to a movement component which runs essentially transversely to the movement path which is caused solely by the drive of the four-bar linkage 4 via the crank arm 5.

Landscapes

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

Claims (12)

1. Dispositif pour plier des feuilles de tôle, comportant au moins un outil de pliage (2, 3) qui est porté par la bielle (7) d'un quadrilatère articulé (4) pouvant être entraîné qui se compose de deux bras (5, 6) montés dans un bâti (1) et de la bielle reliant ces bras (5, 6), ainsi qu'un mécanisme supplémentaire de réglage pour le quadrilatère articullé (4), caractérisé par le fait que le mécanisme supplémentaire de réglage du quadrilatère articulé (4) sert à déplacer le point d'articulation (13) au bâti de l'un des bras du quadrilatère articulé (4), conçus sous forme de bras de manivelle (5, 6), ou à modifier la longueur d'un bras de manivelle (6).
2. Dispositif selon la revendication 1, caractérisé par le fait que le mécanisme de réglage servant à déplacer le point d'articulation (13) ou à modifier la longueur de l'un des bras de manivelle (6) peut être actionné en fonction de la position de rotation de l'autre bras de manivelle (5) pouvant être entraîné.
3. Dispositif selon la revendication 1 ou 2, caractérisé par le fait que le bras de manivelle (6) qui est réglable en ce qui concerne son point d'articulation (13) ou sa longueur peut, une fois qu'une position extrême limitée par butée a été atteinte par l'autre bras de manivelle (5), être réglé individuellement par l'intermédiaire du mécanisme de réglage.
4. Dispositif selon l'une des revendications 1 à 3, caractérisé par le fait qu'un bras de manivelle (6) est conçu sous forme de vérin (27) de réglage, en vue du réglage de longueur.
5. Dispositif selon l'une des revendications 1 à 4, caractérisé par le fait que, pour le déplacement de son point d'articulation (13), le bras de manivelle (6) est articulé à un levier (14) monté de manière à pouvoir tourner dans le bâti (1).
6. Dispositif selon la revendication 5, caractérisé par le fait que le levier (14) formant le point d'articulation (13) de l'un des bras de manivelle (6) est sous une forme à deux bras et coopère avec un levier entraîneur (17) en liaison d'entraînement avec l'autre bras de manivelle (5).
7. Dispositif selon la revendication 5 ou 6, caractérisé par le fait que le levier (14) formant le point d'articulation (13) de l'un des bras de manivelle (6) peut être réglé à l'aide d'un vérin (24).
8. Dispositif selon la revendication 7, caractérisé par le fait que le vérin de réglage (24) du levier (14) est articulé de manière à pouvoir coulisser et peut être bloqué dans les différentes positions de coulissement.
9. Dispositif selon la revendication 8, caractérisé par le fait que le guidage de coulissement destiné au vérin de réglage (24) est conçu sous la forme d'un vérin de soutien (26) disposé en série avec le vérin de réglage (24).
10. Dispositif selon l'une des revendications 1 à 9, caractérisé par le fait qu'entre le levier (14) formant le point d'articulation (13) de l'un des bras de manivelle (6) et le levier entraîneur (17) de l'autre bras de manivelle (5) est prévu un élément de transmission (18) monté de façon réglable sur l'un des deux leviers (14, 17).
11. Dispositif selon la revendication 10, caractérisé par le fait que l'élément de transmission (18) s'appuie sur un vérin (19).
12. Dispositif selon la revendication 11, caractérisé par le fait que le vérin de soutien (26) peut être aéré sous la dépendance de la pression d'alimentation du vérin (19) qui coopère avec l'élément de transmission (18).
EP81890048A 1980-04-24 1981-03-16 Dispositif à plier des feuilles de tôle Expired EP0039322B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2203/80 1980-04-24
AT0220380A AT363757B (de) 1980-04-24 1980-04-24 Vorrichtung zum abkanten von blechtafeln

Publications (2)

Publication Number Publication Date
EP0039322A1 EP0039322A1 (fr) 1981-11-04
EP0039322B1 true EP0039322B1 (fr) 1983-10-12

Family

ID=3529912

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81890048A Expired EP0039322B1 (fr) 1980-04-24 1981-03-16 Dispositif à plier des feuilles de tôle

Country Status (8)

Country Link
US (1) US4411148A (fr)
EP (1) EP0039322B1 (fr)
JP (1) JPS56168913A (fr)
AR (1) AR228054A1 (fr)
AT (1) AT363757B (fr)
BR (1) BR8102468A (fr)
DE (1) DE3161151D1 (fr)
MX (1) MX152290A (fr)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8320764D0 (en) * 1983-08-02 1983-09-01 Rhodes Joseph Ltd Bending machines
US4590784A (en) * 1984-07-27 1986-05-27 Nippon Kokan Kabushiki Kaisha Press brake
JPH0685942B2 (ja) * 1986-08-29 1994-11-02 株式会社アマダ 折曲げ機械
JPH0685941B2 (ja) * 1986-08-29 1994-11-02 株式会社アマダ 折曲げ機械
DE3826310A1 (de) * 1988-08-03 1990-02-08 Rolf Nagel Vorrichtung zum erzeugen von blechabkantungen durch biegen
FI85112C (fi) * 1989-09-11 1992-03-10 Toolsystem Oy Boejningsanordning foer tunnplaotar och foerfarande foer boejning av tunnplaotar.
US5083355A (en) * 1990-04-30 1992-01-28 Utica Enterprises, Inc. Hemming apparatus
FR2686276B1 (fr) * 1992-01-20 1994-04-29 Dimeco Alipresse Plieuse pour flans metalliques.
DE4209259C2 (de) * 1992-03-21 1995-06-01 Anton Rappl Biegevorrichtung
JPH06226354A (ja) * 1993-01-29 1994-08-16 Amada Co Ltd 板材折曲げ加工装置
NL1000459C2 (en) * 1995-05-31 1996-12-03 Cornelis Hendricus Liet Device for bending metal sheet
NL1002553C1 (nl) * 1995-05-31 1996-12-03 Cornelis Hendricus Liet Inrichting voor het buigen van een metaalplaat.
IT1292259B1 (it) * 1997-04-15 1999-01-29 Antonio Codatto Pressa piegatrice per lamiere.
DE19901797A1 (de) * 1999-01-19 2000-07-27 Reinhardt Gmbh Maschbau Biegemaschine
IT1312333B1 (it) * 1999-05-27 2002-04-15 Salvagnini Italia Spa Lama piegatrice e schiacciatrice per macchina per la piegatura e loschiacciamento di fogli di lamiera e macchina utilizzante la lama
SE518089C2 (sv) * 1999-10-26 2002-08-27 Tetra Laval Holdings & Finance Anordning vid en tubvärmeväxlare
US7258030B2 (en) * 2003-01-21 2007-08-21 Syron Engineering & Manufacturing, Llc Failsafe element for rotary cam unit used in a flanged die
WO2004069444A1 (fr) * 2003-02-06 2004-08-19 Kyowa Machine Co., Ltd. Machine a cintrer les toles
US7622066B2 (en) * 2004-07-26 2009-11-24 The Boeing Company Methods and systems for manufacturing composite parts with female tools
US7306450B2 (en) * 2004-09-29 2007-12-11 The Boeing Company Apparatuses, systems, and methods for manufacturing composite parts
PT1819457E (pt) * 2004-10-22 2009-05-27 Finn Power Oy Sistema cinemático para o deslocamento de unidades de trabalho de máquinas utilizadas para a modelação e dobragem de chapas de metal
US8601694B2 (en) * 2008-06-13 2013-12-10 The Boeing Company Method for forming and installing stringers
US8557165B2 (en) 2008-10-25 2013-10-15 The Boeing Company Forming highly contoured composite parts
US7527759B2 (en) * 2005-04-13 2009-05-05 The Boeing Company Method and apparatus for forming structural members
EP1777017A1 (fr) * 2005-10-21 2007-04-25 Arcelor Steel Service Centres Dispositif de pliage à bras de pliage positif et négatif indépendants
US7655168B2 (en) * 2006-01-31 2010-02-02 The Boeing Company Tools for manufacturing composite parts and methods for using such tools
JP5233682B2 (ja) * 2009-01-08 2013-07-10 アイシン・エィ・ダブリュ株式会社 曲げ加工機
ITVR20110061A1 (it) * 2011-03-30 2012-10-01 Finn Power Italia S R L Meccanismo di movimentazione per struttura portalame di macchina pannellatrice per l'esecuzione di piegature su fogli di lamiera metallica
ITVR20110232A1 (it) * 2011-12-22 2013-06-23 Finn Power Italia S R L Meccanismo di movimentazione a motori indipendenti per gruppo portalame di macchina pannellatrice
DE102012210960B4 (de) * 2012-06-27 2024-02-29 Bayerische Motoren Werke Aktiengesellschaft Füllschieberanordnung für ein pressengebundenes Blechbearbeitungswerkzeug und pressengebundenes Blechbearbeitungswerkzeug mit solcher Füllschieberanordnung
ITUB20160836A1 (it) * 2016-02-18 2017-08-18 Olma S R L Gruppo di piegatura di una macchina utensile pannellatrice
CN117324438B (zh) * 2023-12-01 2024-02-06 广东铝享家家居有限公司 一种铝制柜体弧形件折弯机

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1135534A (en) * 1914-12-31 1915-04-13 Bliss E W Co Flanging device for sheet-metal blanks.
GB584575A (en) * 1945-01-04 1947-01-17 Norman Isherwood And Company L Improvements in crimping machines
US3054437A (en) * 1960-01-29 1962-09-18 Laxo Ed Can body blank forming machine
GB958671A (en) * 1960-08-31 1964-05-21 British Federal Welder Clinching apparatus
DE1909623U (de) * 1964-12-05 1965-02-11 British Fed Welder And Machine Boerdel- bzw. falzvorrichtung.
FR1432302A (fr) * 1965-05-05 1966-03-18 Steelweld Ltd Presse à plier les pièces en tôle
US3561248A (en) * 1968-05-21 1971-02-09 Kawasaki Juko Kk Apparatus for forming curved metal bars as automobile bumpers
CH475803A (de) * 1968-10-04 1969-07-31 Mueller Willi Abkantmaschine
JPS5236270B2 (fr) * 1973-08-13 1977-09-14
FR2307592A1 (fr) * 1975-04-16 1976-11-12 Lamendour Andre Machine automatique de pliage de toles
IT1086365B (it) * 1977-09-19 1985-05-28 Salvagnini Transferica Spa Macchina per la produzione di pannelli di lamiera rettangolare con bordi piegati
CH622447A5 (en) * 1977-11-14 1981-04-15 Thalmann Konstruktionen Ag Bending machine

Also Published As

Publication number Publication date
JPH0117770B2 (fr) 1989-04-03
US4411148A (en) 1983-10-25
AR228054A1 (es) 1983-01-14
ATA220380A (de) 1981-01-15
DE3161151D1 (en) 1983-11-17
BR8102468A (pt) 1982-01-05
AT363757B (de) 1981-08-25
EP0039322A1 (fr) 1981-11-04
JPS56168913A (en) 1981-12-25
MX152290A (es) 1985-06-21

Similar Documents

Publication Publication Date Title
EP0039322B1 (fr) Dispositif à plier des feuilles de tôle
EP0022122B1 (fr) Machine de cintrage
EP0226167B1 (fr) Procédé de pliage de matériau allongé ainsi que machine pour exécuter ce procédé
DE3877172T2 (de) Binden von gelochten boegen.
CH658212A5 (de) Schermaschine.
DE2614177A1 (de) Vorrichtung zum biegen von blechen
DE2540403C3 (de) Schmiedemaschine mit zwei gegeneinander wirkenden Werkzeugträgern
EP0120336B2 (fr) Machine à cintrer les tubes
EP0061504B1 (fr) Engrenage pour un dispositif de transport
EP0641265B1 (fr) Machine a dresser
CH676214A5 (fr)
DE2612304C3 (de) Biegemaschine für stabförmiges Material, insbesondere für Betonbewehrungsstäbe
EP0497780B1 (fr) Procede de cintrage oppose d'une tole
DE3709018C2 (de) Vorrichtung zum Biegebearbeiten von Blechtafeln
DE2237669B2 (de) Gestänge zur Verbindung zweier Elemente
DE9404308U1 (de) Biegemaschine zum rutschlosen Biegebearbeiten von Blechtafeln
DE4034248A1 (de) Vorrichtung zum biegen von blech
DE2201791C3 (de) Einspann- und Richtvorrichtung für aus Blechen gepreßte, vorzugsweise konische, schlitzrohrartige Masten o.dgl. bei einer Rohrschweißvorrichtung
EP3566959A1 (fr) Machine d'emballage pourvue de cylindre de compensation
EP0699786A2 (fr) Dispositif de formation de la foule
DE2728202A1 (de) Querteilschere fuer walzbleche, insbesondere fuer grobbleche
CH696158A5 (de) Schwenkbiegemaschine.
DE19915488B4 (de) Vorrichtung zum Biegen eines Metallbandes
AT351892B (de) Vorrichtung zum besaeumen plattenartiger werk- stuecke
EP1324841B1 (fr) Dispositif permettant de plier une bande de matiere

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): BE CH DE FR GB IT LU NL SE

17P Request for examination filed

Effective date: 19811119

ITF It: translation for a ep patent filed

Owner name: STUDIO INGG. FISCHETTI & WEBER

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

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

REF Corresponds to:

Ref document number: 3161151

Country of ref document: DE

Date of ref document: 19831117

ET Fr: translation filed
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: 19840331

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
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19900315

Year of fee payment: 10

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

Ref country code: FR

Payment date: 19900326

Year of fee payment: 10

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

Ref country code: DE

Payment date: 19900328

Year of fee payment: 10

Ref country code: CH

Payment date: 19900328

Year of fee payment: 10

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

Ref country code: LU

Payment date: 19900329

Year of fee payment: 10

Ref country code: BE

Payment date: 19900329

Year of fee payment: 10

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

Ref country code: NL

Payment date: 19900331

Year of fee payment: 10

Ref country code: GB

Payment date: 19900331

Year of fee payment: 10

ITPR It: changes in ownership of a european patent

Owner name: CESSIONE;SALVAGNINI TRANSFERICA S.P.A.

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: SALVAGNINI TRANSFERICA S.P.A.

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732

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

Ref country code: GB

Effective date: 19910316

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

Ref country code: SE

Effective date: 19910317

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

Ref country code: LI

Effective date: 19910331

Ref country code: CH

Effective date: 19910331

Ref country code: BE

Effective date: 19910331

BERE Be: lapsed

Owner name: VOEST-ALPINE A.G.

Effective date: 19910331

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

Ref country code: NL

Effective date: 19911001

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19911129

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: 19920101

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 81890048.2

Effective date: 19911009