EP0142846B1 - Machine pour l'enlèvement automatique des enveloppes en matière plastique de charges palettisées - Google Patents

Machine pour l'enlèvement automatique des enveloppes en matière plastique de charges palettisées Download PDF

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Publication number
EP0142846B1
EP0142846B1 EP84113959A EP84113959A EP0142846B1 EP 0142846 B1 EP0142846 B1 EP 0142846B1 EP 84113959 A EP84113959 A EP 84113959A EP 84113959 A EP84113959 A EP 84113959A EP 0142846 B1 EP0142846 B1 EP 0142846B1
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EP
European Patent Office
Prior art keywords
cutting
wrapping
machine
fact
cut
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
EP84113959A
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German (de)
English (en)
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EP0142846A1 (fr
Inventor
Maurizio Chierighini
Franco Sisti
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.)
Leonardo SRL
Original Assignee
Leonardo SRL
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 Leonardo SRL filed Critical Leonardo SRL
Priority to AT84113959T priority Critical patent/ATE34143T1/de
Publication of EP0142846A1 publication Critical patent/EP0142846A1/fr
Application granted granted Critical
Publication of EP0142846B1 publication Critical patent/EP0142846B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B69/00—Unpacking of articles or materials, not otherwise provided for
    • B65B69/0033—Unpacking of articles or materials, not otherwise provided for by cutting

Definitions

  • This invention concerns a machine for automatically removing plastic wrapping material from palletized loads, and in particular, a machine capable of automatically and successively carrying out all the horizontal and vertical cutting operations according to a pre-established work procedure.
  • WO-A-79 00 682 From WO-A-79 00 682 is known a machine for cutting strings or straps of palletized packings in which a cross bar is movable over the top wall of the packing, to position cutting members on opposite sides of the packing; the cutting members are in the form of downwardly movable cutting heads to hook and cutting the strap. No cutting of the wrapping sides is therefore possible with this apparatus, and no cutting is possible along horizontal planes or in different positions of peripheral sides.
  • US-A-3 889 442 discloses an apparatus for removing a shrinkable plastic wrapping from packages; the packages are conveyed towards stationary cutting members to make lengthwise cuts on opposite side walls; further cuts are made across the top wall and along vertically extending corners, forming flaps that are folded back in opposite directions to uncover the articles packaged.
  • the cutters are in the form of pivotally supported knives actuated by a spring to bias against the wrapping.
  • GB-A-1 097 8559 discloses apparatus for opening the top of packages in which electrically heated bars make diagonal incisions on the top wall of the wrapping, forming flaps that are folded back by vacuum actuated clamping means.
  • the object of this invention is to provide a fully automatic machine for cutting the sides of plastic wrapping material on palletized loads in a single operation, for their subsequent use, while maintaining the load stationary and providing an upper cup-like wrapping portion for stabilization of the load.
  • a further object of the invention is to provide a machine of the aforesaid type which is capable of adapting to palletized loads of different height and which is capable of making cuts in the plastic wrapping material, along any given horizontal cutting level.
  • the machine comprises a rigid structure consisting of two lateral uprights 1 and an upper crossbeam 2, which define a cutting area of the plastic wrapping material of palletized loads, and which house the mechanical systems for the vertical movement of one or more supporting means for cutting members 4, for example a square or rectangular-shaped annular frame 3, provided with a pre-established number of cutting members 4, as described further on.
  • Reference 5 indicates a palletized load which is situated beneath and axially aligned with the cutting member supporting frame 3, carried by a service conveyor 6, at either side of which are two boxes 7 for collecting the cut portions of the wrapping 9 which are gripped and removed from the load by means of two articulated arms 8 sliding along the upper crossbeam 2 of the structure of the machine.
  • the system for the vertical movement of the frame 3 supporting the cutting members comprises two vertical guide rods 10, fitted in the uprights 1, along each of which slide sleeves 11, which are connected by means of arms 12, to two opposite sides of the frame 3; each sleeve 11 is also connected to a branch of an endless chain 13, or equivalent drive mechanism, which winds around two gear wheels 14 and 15 situated at the ends of the aforesaid guide rod 10.
  • the upper gear wheels 15 are interconnected by a drive synchronizing shaft 16, whilst one of the lower gear wheels 14 is driven by an electric motor 17.
  • the annular frame 3 supporting the cutting members 4 can therefore be moved vertically, along the palletized load 5, from an upper position above the load 5 itself, to cutting positions below in correspondence with the pre-establised cutting heights or planes for the wrapping 9 of the load.
  • Figures 4 and 5 show a typical disposition of the cutting members provided on the movable frame 3 in the event of a square-shaped load. As can be seen, the frame 3 presents a similar conformation to that of the load 5, surrounding the latter peripherally.
  • the annular frame 3 is provided with a set of cutting members 4a for cutting the wrapping 9 horizontally, for example four horizontal cutting members 4a, one for each side of the annular frame 3, which follow each other peripherally around the frame itself, in a clockwise direction of movement.
  • the annular frame 3 also comprises, on two opposite sides and in a central position of the sides, at right angles to the direction of movement of the load 5 on the conveyor 6, two cutting members 4b for cutting the wrapping 9 vertically, as explained further on.
  • Each horizontal cutting members 4a is mounted on its own carriage 18, which is movable along horizontal guides 19 (Fig. 7) secured in a plane below the frame 3.
  • each carriage 18 is connected to one branch of an endless chain 19c which extends along one side of the frame, and the chains of the carriages are interconnected by means of pairs of idle gears 20 situated at the corners of the frame 3.
  • One of the pairs of gears is driven by a suitable geared motor 19a fitted on the frame 3 by means of a belt drive dimensioned so as to slip in the event of an overload or optionally comprising an equivalent slipping member.
  • the horizontal cutting members 4a move simultaneously along their respective sides of the frame, peripherally around the load, slitting or cutting a corresponding portion of the wrapping 9.
  • the four horizontal cutting members 4a move simultaneously, at the same speed, as the palletized load is square in shape; therefore, gears of the same diameter are used.
  • gears of the same diameter are used in the case of rectangular-shaped pallets.
  • individual drive units for each cutting member or opposing pairs of cutting members so as to permit independent control with the appropriate cutting speed.
  • the vertical cutting members 4b are in a fixed position on the annular frame 3 and are controlled by a cylinder 21 situated in a plane above the frame 3, to move radially, that is to say, to move each cutting member 4b perpendicularly, to and from the face of the wrapping to be cut; such cutting members 4b are similar in conformation to the horizontal cutting members 4a and have their longitudinal axes sloping downwards, as shown in Fig. 5.
  • the cutting means 4, whether they be horizontal 4a or vertical 4b cutting members, may be of any type and supported in any way; according to a preferred embodiment, the cutting means 4 are of the hot-wire type, that is to say, as shown in figure 6, comprising a loop-shaped electric conductor 22 the two ends of which are connected to a source of electric power and are secured by means of bolts 23, or otherwise secured, to a plate 24 hinged to a pivot 25 on a slide 25a, so as to be able to rotate or reciprocate freely in either direction.
  • One central, or two lateral return springs 26 keep the cutting member 22 orientated in a central position according to its longitudinal axis, that is to say, at right angles to the surface of the wrapping 9 to be cut; the springs 26 are consequently connected to pins 27 of the reciprocating plate 24 and respectively to pins 28 of the slide 25a.
  • each cutting member that is to say, each slide 25a, is connected to the rod of a control cylinder 30, situated on a plate 29, which acts normally to move the cutting member towards and away from the surface of the wrapping 9 to be cut.
  • figure 8 shows how to support the hinged arms 8 for removing the cut wrapping.
  • the hinged arms 8 are made to open and close against the wrapping of the load 5, by means of a control cylinder (not shown), or in any other way, and are provided with gripping members 34, for example, of the mechanical type, in order to grip and hold the edges of the cut wrapping 9 on the palletized load, during the cutting operations, as described further on.
  • the carriages 32 supporting the hinged arms 8 can be made to slide along the guides 33 for example by means of pneumatic control cylinders 35 (only one shown) housed inside the crossbeam 2.
  • the machine operates in the following way: when the machine is at rest, the frame 3 supporting the cutting members 4 is completely raised above the palletized load 5 and with the carriages 18 at the end of their stroke, that is to say, in correspondence with the corners of the quadrilateral defined by the frame 3, in the case in question.
  • the cutting members 4a moreover are in their forward position, capable that is, of interfering with the wrapping 9 to be cut, with the wire 22 under voltage.
  • the palletized load 5 covered by the wrapping 9 moves forward on the service conveyor 6 of the machine; two converging side panels (not shown), if necessary, bring the axis of the load 5 to coincide with the axis of the frame 3 of the machine and a photoelectric sensing means or limit switch stops the load 5, so that the transversal axis coincides with the transversal axis of the machine.
  • the frame 3 lowers until a photoelectric sensing means mounted on the frame itself, intercepts the top of the load 5 and stops the frame 3, by means of a control system, so that the cutting means 4a are on a lower plane then the top plane of the load 5.
  • each cutting element 4a runs the complete contour of one of the four corners once only, where there are generally very thick folds which form during the thermo-shrinking or wrapping process.
  • the carriage 18 can be made to reverse direction and run backwards for a short distance which is sufficientto enable it to reach the corner situated at the end of the cutting stroke; after which the cylinder 30 causes the cutting element 4a to move back, the sliding direction is once again reversed, and the carriage travels back to the final limit switch, where the pneumatic cylinder 30 moves the cutting element 4a forward into the normal working position.
  • each corner can be re-cut by the cutting members. All the horizontal cutting members obviously work simultaneously to cut their respective portion or side of the wrapping 9.
  • the frame 3 is lowered, bringing the cutting members 4a in correspondence with the level of the plane which separates the load from the pallet. Exactly the same operations are carried out for cutting the wrapping at this level, as those previously described for cutting the wrapping at the higher level, but in the opposite direction.
  • the vertical cutting elements 4b which are mounted on the frame 3 in correspondence with the longitudinal axis of the palletized load, are placed in position, and the frame 3 is raised up to the position of the upper cutting level, thus carrying out the vertical cut.
  • the articulated arms 8, which when at rest are close to the uprights 1, in an open position, are made to move forward closed until the pairs of gripping elements 34 come to rest against the wrapping 9 at the sides of the vertical cuts, and the gripping elements 34 are actuated to grip the vertical edges of the cut wrapping.
  • the vertical cut is completed, the cutting elements 4b are made to recede and the frame 3 returns to the rest position.
  • the arms 8 open out and are made to move backwards towards the uprights 1 of the machine, each arm carrying with it half of the wrapping 9 which laterally covered the load.
  • the upper gripping elements loosen their grip so that the two portions of the wrapping fall forward, held by the lower gripping elements.
  • the other gripping elements After a short while, which corresponds to the time it takes for the wrapping to drop into the boxes 7, the other gripping elements also loosen their grip and the cut wrapping slips into the boxes 7.
  • the palletized load still keeps its upper wrapping cap which serves to stabilize the unwrapped load as it is conveyed towards the de-palletizing machine which normally removes the upper wrapping cap, remaining after the cutting, by means of an arm provided with suction pads.
  • the latter may be supported for a horizontal movement, towards and away from the plastic wrapping 9 to be cut, and for a vertical movement, so as the avoid possible interference with the horizontal cutting members, and in order to shift the vertical cutting member4b itself to the established starting point of the cut.
  • This dual movement of the cutting member 4b can be achieved for example by means of a pair of double-acting control cylinders comprising a first horizontal-axis cylinder 36, mounted on the movable frame 3, the rod of which is provided with a block 37 guided along a plate 38. To said block 37 is, in turn, secured a second control cylinder 39 having a vertically arranged axis.
  • a second block 40 Fixed to the lower end of the rod of the second cylinder 39, is a second block 40 provided with a pivoting pin 41 of the cutting member 4b, that is to say, of its supporting plate 42; a spring 43 is connected between a slide bar 44 for guiding the cylinder rod 39 and the plate 42 of the cutting member, which acts upon the latter to make it rotate upwards.
  • FIG 10 shows a possible embodiment of a gripper 34 for gripping the vertical cut edges of the plastic wrapping 9 to be removed from the palletized load.
  • This gripper is movably supported by a relative arm 8, and is suitably pushed forward by a spring, as shown.
  • the gripper comprises a first jaw 45 held by a shank 46 sliding in the supporting arm 8 and thrust forward by a spring 46a; a second movable jaw 47 is held by a swivelling arm 48 controlled by a rotatory cylinder 49 secured to a plate 50 which is longitudinally movable with the shank 46 of the jaw 45.
  • FIG. 1 illustrates a machine comprising a square-shaped frame and, more in general, an annular-shaped frame, provided with cutting members 4a acting upon all sides of the palletized load, and in particular, two horizontal cutting members 4a, acting respectively on the front and rear faces of the wrapping, with reference to the direction of movement of the load 5 on the conveyor 6, and two horizontal cutting members 4a acting respectively on the two sides or lateral faces of the aforesaid load; the vertical cutting members 4b and the grippers 34 for gripping and removing the cut wrapping, being preferably arranged on the sides at right angles to the direction of movement of the load, that is to say, in correspondence with the front and rear faces.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)

Claims (14)

1. Machine destinée à découper automatiquement un emballage (9) en matière plastique de charges palettisées (5) comportant des faces latérales, dans laquelle la charge (5) avec l'emballage plastique (9) est mise en mouvement sur un convoyeur ou transporteur (6) le long d'un circuit et en direction d'une zone de découpe pour le découpage et l'enlèvement de l'emballage (9), la machine comprenant une structure (1, 2) définissant la zone de découpe; des moyens de découpe (4) et un châssis de support de lame (3) mobile verticalement sur la structure (1, 2) depuis une position supérieure inactive vers une position inférieure active, caractérisée en ce que le châssis de support de lame (3) comprend un élément de châssis annulaire, des moyens de commande pour déplacer le châssis de support de lame (3) depuis la position supérieure inactive sur une position inférieure active dans laquelle l'élément de châssis annulaire entoure la charge palettisée (5); le moyen de découpe comprenant des premiers éléments de découpe horizontaux (4a), chacun pouvant se déplacer sur l'élément de châssis annulaire précité (3) parallèle à une face latérale respective de l'emballage (9), la machine comprenant de plus des moyens de commande et des moyens de chargement ou sollicitations élastiques (26, 30) pour déplacer chaque élément de découpe horizontal (4a) vers et contre l'emballage plastique (9) pendant chaque opération de découpe.
2. Machine selon la revendication 1, caractérisée par le fait que élément de découpe horizontal (4a) est monté sur un chariot (18) pouvant se déplacer le long de glissières horizontales (19) sur l'élément de châssis annulaire (3), et des moyens de commande (19a, 19b, 19c) pour déplacer simultanément les chariots (18) sur l'élément de châssis annulaire (3).
3. Machine selon la revendication 1, caractérisée par le fait que l'élément de découpe horizontal (4a) est monté sur un chariot (18) pouvant se déplacer le long de glissières horizontales (19) sur l'élément de châssis annulaire (3), et des moyens de commande (19a, 19b, 19c) destinés à déplacer chaque chariot individuel (18) indépendamment sur l'élément de châssis annulaire (3).
4. Machine selon la revendication 1, caractérisée par le fait que le châssis 3 comprend de plus des éléments de découpe agissant verticalement (4b) pour découper verticalement l'emballage plastique (9).
5. Machine selon la revendication 4, caractérisée par le fait que les éléments de découpe verticaux (4b) sont mobiles verticalement par rapport au châssis de support (3).
6. Machine selon la revendication 1, caractérisée par le fait que chaque élément de découpe horizontal (4a) est mobile le long d'une course de coupe comprenant une portion latérale périphérique de l'emballage (9), laquelle recouvre ou chevauche partiellement la portion latérale périphérique d'un élément de découpe contigu.
7. Machine selon la revendication 1, caractérisée par le fait que chaque élément de découpe horizontal (4a) est mis en pivotement par rapport à un élément de plaque de support de façon à tourner angulairement par rapport à une position centrale, et par le fait que des ressorts (26) sont prévus pour charger ou silliciter l'élément de découpe (4a, 4b) en direction de la position centrale et contre la surface de l'emballage (9) à découper.
8. Machine selon la revendication 6, caractérisée par le fait que chaque élément de découpe horizontal (4a) est supporté par un coulisseau (24) pouvant se déplacer à angle droit par rapport à la direction de découpe, en direction de et en éloignement du côté de l'emballage plastique (9) à découper, lequel coulisseau (24) est relié à un vérin de commande (30).
9. Machine selon l'une quelconque des revendications précédentes, caractérisée par le fait que le moyen de découpe (4) comprend des éléments de découpe du type à fil chaud (4a, 4b).
10. Machine selon la revendication 1, caractérisée par le fait que l'élément de support annulaire (3) supportant les éléments de découpe (4) présente la forme d'un châssis carré comprenant un élément de découpe horizontal mobile (4a) de chaque côté du châssis (3).
11. Machine selon la revendication 1, caractérisée de plus par le fait que qu'elle comprend des moyens (8, 34) destinés à la préhension et à l'enlèvement de l'emballage découpé (9).
12. Machine selon la revendication 11, caractérisée de plus par le fait que les moyens (8, 34) destinés à la préhension et à l'enlèvement de l'emballage découpé (9) comprennent des bras articulés (8) munis d'éléments de préhension (34) pour saisir l'emballage (9) et des moyens (33, 35) destinés au guidage et à la commande desdits bras (8) depuis une condition proche de, jusqu'à une condition éloignée de l'emballage (9) à découper.
13. Machine selon la revendication 12, caractérisée par le fait que les moyens (8, 34) destinés à enlever l'emballage (9) comprennent des bras articulés (8) montés en charnière sur une tige (31 ) supportée par un chariot (32), lesdits bras (8) étant munis de bras de préhension (34) destinés à saisir l'emballage (9); des moyens de guidage (33) sur ladite structure (1, 2) pour ledit chariot (32) et des moyens de commande (35) destinés à déplacer ledit chariot (32) et lesdits bras articulés (8), depuis une position sortie avec les bras (8) fermés pour la préhension des portions découpées de l'emballage (9) sur la charge palettisée (5), sur une position rentrée pour libérer les portions enlevées de l'emballage (9).
14. Machine selon la revendication 13, caractérisée par le fait que les moyens (34) destinés à enlever l'emballage découpé (9) comprennent des éléments pneumatiques et/ou mécaniques de préhension (45, 47).
EP84113959A 1983-11-21 1984-11-19 Machine pour l'enlèvement automatique des enveloppes en matière plastique de charges palettisées Expired EP0142846B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84113959T ATE34143T1 (de) 1983-11-21 1984-11-19 Maschine zum automatischen entfernen der kunststoffhuellen von palettierten lasten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2379583 1983-11-21
IT23795/83A IT1165491B (it) 1983-11-21 1983-11-21 Macchina per l'asportazione automatica di involucri in plastica da carichi palettizzati

Publications (2)

Publication Number Publication Date
EP0142846A1 EP0142846A1 (fr) 1985-05-29
EP0142846B1 true EP0142846B1 (fr) 1988-05-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP84113959A Expired EP0142846B1 (fr) 1983-11-21 1984-11-19 Machine pour l'enlèvement automatique des enveloppes en matière plastique de charges palettisées

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Country Link
EP (1) EP0142846B1 (fr)
AT (1) ATE34143T1 (fr)
DE (1) DE3471064D1 (fr)
IT (1) IT1165491B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4311421A1 (de) * 1993-04-07 1994-10-13 Vfi Verpackungstech Verfahren und Vorrichtung zum Entfernen einer sichernden und/oder schützenden Folie
DE4315050A1 (de) * 1993-05-06 1994-11-10 Vfi Verpackungstech Anlage zum Entpalettieren von Palettengebinden
DE4400661A1 (de) * 1993-09-23 1995-03-30 Msk Verpackung Syst Gmbh Verfahren und Vorrichtung zum Entfernen einer über einen Gutstapel gezogenen Folienhaube
DE202009005086U1 (de) 2009-07-30 2010-12-16 Autefa Automation Gmbh Öffnungseinrichtung

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JPS62235037A (ja) * 1986-04-03 1987-10-15 北海製罐株式会社 梱包体の結束紐除去方法及びその装置
FR2600040B1 (fr) * 1986-06-13 1988-10-21 Thibault Jacques Procede et installation de dehoussage et de dechargement d'une paletee.
US5282346A (en) * 1992-05-14 1994-02-01 Oji Seitai Kaisha, Ltd. Unwrapping apparatus with swing arms and grippers
DE4326599A1 (de) * 1992-08-18 1994-02-24 Hauni Werke Koerber & Co Kg Verfahren und Vorrichtung zum Entfernen der Juteumhüllung von einem Tabakballen
JP2832779B2 (ja) * 1992-09-03 1998-12-09 花王株式会社 結束体の切断回収方法及び装置
ITBO20000474A1 (it) * 2000-07-31 2002-01-31 Aetna Group Spa Apparecchiatura per la rimozione di film plastico di avvolgimento da pallet di prodotti .
US7174695B2 (en) 2003-06-04 2007-02-13 Porter Dan C De-packaging machine
US7963086B2 (en) 2007-11-06 2011-06-21 Porter Technologies, Llc Package unbundling system
IT1396964B1 (it) * 2009-11-12 2012-12-20 Bortolin Kemo Spa Macchina per la depallettizzazione di un carico multistrato.
ITBO20110372A1 (it) * 2011-06-28 2012-12-29 Mac Due S R L Imballaggio in foglia e/o film di materia plastica e/od altro materiale, aperto superiormente o predisposto per una tale apertura, per fungere anche da espositore dei prodotti in questo collocati e dotati di confezione propria e procedimento per la p
CN107472615A (zh) * 2017-09-06 2017-12-15 山东农业大学 农用除膜破捆装置
CN110884742A (zh) * 2019-12-25 2020-03-17 中山德马克环保科技有限公司 一种异型包装壳拆包机
CN112298718B (zh) * 2020-09-23 2022-07-19 国网山东省电力公司昌乐县供电公司 一种电力设备包装箱开箱装置

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US3175288A (en) * 1964-05-07 1965-03-30 William N Garwick Tray pack processing cutter
DE1511847A1 (de) * 1965-04-23 1970-01-08 Lars Wiking Einrichtung zum OEffnen von Verpackungen aus einem hitzeempfindlichen Material
SE360617B (fr) * 1972-03-13 1973-10-01 Platmanufaktur Ab
CH625756A5 (fr) * 1978-03-02 1981-10-15 Born Ag Peter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4311421A1 (de) * 1993-04-07 1994-10-13 Vfi Verpackungstech Verfahren und Vorrichtung zum Entfernen einer sichernden und/oder schützenden Folie
DE4315050A1 (de) * 1993-05-06 1994-11-10 Vfi Verpackungstech Anlage zum Entpalettieren von Palettengebinden
DE4400661A1 (de) * 1993-09-23 1995-03-30 Msk Verpackung Syst Gmbh Verfahren und Vorrichtung zum Entfernen einer über einen Gutstapel gezogenen Folienhaube
DE4400661C2 (de) * 1993-09-23 1999-07-22 Msk Verpackung Syst Gmbh Verfahren und Vorrichtung zum Entfernen einer über einen Gutstapel gezogenen Folienhaube
DE202009005086U1 (de) 2009-07-30 2010-12-16 Autefa Automation Gmbh Öffnungseinrichtung

Also Published As

Publication number Publication date
IT8323795A0 (it) 1983-11-21
ATE34143T1 (de) 1988-05-15
DE3471064D1 (en) 1988-06-16
EP0142846A1 (fr) 1985-05-29
IT1165491B (it) 1987-04-22

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