EP0671327B1 - Verfahren und Anlage um pyramidenstumpfförmige Schalen handzuhaben und um diese in eine Verpackung einzusetzen - Google Patents

Verfahren und Anlage um pyramidenstumpfförmige Schalen handzuhaben und um diese in eine Verpackung einzusetzen Download PDF

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Publication number
EP0671327B1
EP0671327B1 EP95460009A EP95460009A EP0671327B1 EP 0671327 B1 EP0671327 B1 EP 0671327B1 EP 95460009 A EP95460009 A EP 95460009A EP 95460009 A EP95460009 A EP 95460009A EP 0671327 B1 EP0671327 B1 EP 0671327B1
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EP
European Patent Office
Prior art keywords
row
punnets
collection
conveyor
trays
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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
EP95460009A
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English (en)
French (fr)
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EP0671327A1 (de
Inventor
Laurent Koenig
Jacques Bernard
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DISPAC Sarl
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DISPAC Sarl
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    • 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
    • B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
    • B65B35/30—Arranging and feeding articles in groups
    • B65B35/36—Arranging and feeding articles in groups by grippers

Definitions

  • the present invention relates to a method and an installation for handling trays in the shape of a pyramid trunk and placing them in a package.
  • Transparent plastic trays in the shape of a pyramid trunk are widely used for packaging food products such as lamb's lettuce, kiwi fruit, tomatoes, pears, etc. These are high-shaped trays with a substantially rectangular base. Their pyramidal trunk shape, namely slightly flared towards their opening, is intended to allow their stacking when they are empty.
  • Such trays when filled with food products, are coated with a transparent plastic film and then packaged in larger packages, such as wooden or cardboard crates, for storage and storage. their transport to the places of sale.
  • the problem that the present invention aims to solve is that which consists in handling trays in the shape of a trunk of a pyramid and putting them in place in a package, this in a grouped fashion, that is to say several trays at a time and correctly, that is to say without it being necessary to replace the trays inside the packaging, by manual intervention.
  • said assembly is also grasped by exerting a clamping in a direction generally parallel to said contiguous edges.
  • the present invention also relates to an installation for implementing such a method.
  • tray 1 of transparent plastic which can be used in the context of the method of the present invention.
  • This installation which has the general reference 2, essentially comprises a conveyor 3, a support and transfer station 4, a packaging shaping station 5, a loading station 6 and mobile loading means with clamps 7 .
  • the installation 2 comprises a frame formed essentially of metal beams 20 between which take place all of the stations mentioned below. We do not specifically describe the structure of this frame.
  • the installation comprises a conveyor 3 with an endless belt, of known type, the two outward and return strands of which are arranged in horizontal planes. As shown in Figure 2, the upper strand of this conveyor moves in the direction of arrow f , that is to say towards the center of the installation.
  • the motor means which make it possible to move the strands of the conveyor are for example of the electrical type and have not been shown in FIG. 2, so as not to overload it unnecessarily.
  • This conveyor is intended to transport, at the tail leu leu, trays 1. These trays have been previously filled with food products and their opening preferably closed by means of a sealing film.
  • the conveyor 3 may be at the end of another conveyor on the path from which these filling and sealing operations have been carried out.
  • a stop 42 which extends transversely and extends on its right side, when we consider FIG. 2.
  • each of these jacks extends horizontally and perpendicular to the strands of the conveyor 3.
  • the vertical face of these elements, opposite the jacks, is provided with two rubber pads 403, 403 'respectively.
  • These jacks are arranged in such a way that in the position of maximum extension of the rod, the pusher elements 402 and 402 ′ are located on the path of the conveyor 3, slightly above its upper strand.
  • the cylinder 40 ′ closest to the upstream end of the conveyor 3 has its rod retracted, that is to say that the pusher element 402 does not interfere with the trajectory of the conveyor 3.
  • the second cylinder 40 has its rod 401 in the position of maximum extension so that the pusher element 402 is located above the upper strand of the conveyor 3.
  • support means 41 formed by a series of flat and parallel rods. More specifically, substantially opposite each pusher element 402, 402 ′ and therefore of each cylinder 40, 40 ′, two pairs of rods 41 are provided. The spacing between the rods of each pair is identical. All the rods 41 extend in the same horizontal plane which is slightly below that in which the upper strand of the conveyor 3 is contained.
  • the installation comprises transfer means, one element of which is shown in perspective in FIG. 3. It comprises a series of four identical arches 80 formed by a metal rod of circular section. These arches have a curved base 800, the end wings 801 of which are raised upwards. Each arch is held, not far from its raised ends but on the side opposite to them, by a pair of flat and vertical rods 81 so that the assemblies formed by a pair of rods and the corresponding arch extend in parallel vertical planes. The lower end of these rods 81 arranged on the same side of the arches is welded to the horizontal wing of an "L" angle 82.
  • the element 8 therefore comprises two pairs of arches 80 and the spacing between the hoops of each pair is the same.
  • angles 82 are interconnected by a series of crosspieces 83, one of these being attached to the rod of a double-acting cylinder 85.
  • the body of this cylinder extends vertically, that is to say parallel to the rods 81.
  • the installation 2 comprises two transfer elements 8 such as that described above. Each element is associated with a jack 40, 40 ′ and is arranged in the space situated below the pairs of support rods 41, as shown in FIG. 4.
  • the arrangement of the arches 80 and their spacing is such that each pair of arches 80 takes place between a corresponding pair of support rods 41. Indeed, the spacing D1 which separates two arches d 'The same pair is less than the spacing D2 which separates the two associated support rods 41.
  • the actuator 85 is actuated so as to cause the extension of its rod, the element 8 is moved upwards so that the arches 80 pass between the support rods 41 until it extends at a level higher than the plane materialized by these rods.
  • the lengths of the actuator and its rod will have been provided accordingly.
  • the installation also includes a packaging shaping station 5.
  • This station includes a movable endless conveyor belt 50 which extends transversely relative to the conveyor 3, that is to say parallel and to the rear of the stop 42, and on which can be placed a cardboard C intended to constitute, after shaping a package C ' in the form of crate.
  • the cardboard C When the cardboard C is shaped, it is transferred by means of the endless belt conveyor 50 to a loading station 6 located in the extension of the support rods 41 (see FIG. 2) and at the second end of the conveyor.
  • Item 5 is optional.
  • the packaging can be shaped at a station independent of the installation and the packaging brought to the installation for filling.
  • the installation comprises mobile loading means with clamps 7 (not visible in FIG. 2).
  • These means are mounted at the level of a longitudinal beam 20 which extends along the support and transfer station 4 and the loading station 6.
  • These means comprise a kind of bracket 72 which extends horizontally above the installation and which is supported by a vertical mast 71, which comprises guide and displacement means 70 along the beam 20.
  • These means consist, for example, of rollers coupled to motor means and associated with rails provided on the beam.
  • the means 7 can be moved along the beam to bring them either to the loading station 6 or to the support and transfer station 4.
  • clamps 73 movable along the bracket but also around a horizontal axis in order to allow them to pivot. They can be operated remotely.
  • FIGS. 9 and 10 differs from that described above by the structure of its support and transfer station 4.
  • This station includes two endless belt conveyors 3 and 3 'arranged in the extension of one another.
  • the conveyor 3 is of the same type as that described in connection with the first embodiment, while the conveyor 3 'has a much greater width.
  • the ratio between their respective widths is of the order of 1 to 5.
  • the conveyor 3 extends along the median longitudinal axis XX 'of the conveyor 3'.
  • a switching device 9 movable around a vertical axis 90.
  • This device is equipped with means not shown which allow it to successively occupy different angular positions.
  • This is for example a known type of indexing mechanism such as that sold under the trade name ROTOBLOCK.
  • the device can successively occupy five different angular positions.
  • FIG. 9 represents a central arrangement of the switching device.
  • a stop 92 (shown only in FIG. 10) which are adapted to retract periodically and allow free passage along the corridor Cor.
  • This stop is for example made up of a finger secured to a sequencer pneumatic type 91.
  • each of the partitions is chosen in such a way that, during its movement, the switching device 9 does not interfere with them.
  • the partitions 30 define two by two of the corridors C1 to C5 and it is easily understood that, depending on the location of the switching device, it is possible to bring the corridor Co opposite one or the other of the corridors C1 to C5.
  • transverse bar 31 ' which can be moved in a vertical plane by means of jack 32'.
  • Figure 10 is shown the low position of the bar 31 ', in which it obstructs the exit from the corridors C1 to C5.
  • rollers 41 ' Under the horizontal plane defined by the rollers 41 'is mounted an element 8 of the same type as that described in connection with the first embodiment.
  • the arrangement and the spacing of the rollers 41 ' are adapted so as not to hinder the movement of the element 8 during its lifting.
  • Trays 1, previously filled with food products and coated with a film are placed in turn on the conveyor 3, which is started so that its upper strand moves in the direction of arrow f .
  • the advancement of the trays 1 on the conveyor is limited by the rod 42 which forms a stop, so that trays accumulate at the tail leu leu on the conveyor.
  • Means such as a photoelectric cell detect the presence of trays on the conveyor and control the extension of the rod 401 of the jack 40, that is to say that which is placed closest to the stop 42. From this way, a pair of trays are pushed on the rods 41 arranged next to the conveyor. This maneuver is repeated each time that a pair of trays abuts against the rod 42. Thus, the trays in place on the rods 41 push each other, so that two rows 1A and 1B of trays 1 parallel to the stop 42, forming identical sets E.
  • the automatic control means then actuate the stop of the first cylinder 40 and the above operations are then repeated with the second cylinder 40 'placed on the side of the upstream end of the conveyor.
  • the jack 85 which equips the transfer element 8 placed under the corresponding rods 41 is actuated so as to cause the extension of its rod.
  • the element 8 is moved in the direction of the rows 1A and 1B of trays, which are lifted and then supported by the hoops 80 so as to form parallel rows of curved shape.
  • the trays 1 of row 1A (and 1B) are arranged on the hoops so that the facing faces of the two adjacent trays are substantially parallel and contiguous.
  • the length of the arch formed by each of the arches is determined so as to correspond substantially to five times the width of a tray, at its bottom.
  • the rows could be formed of four or six trays and the length of the hoops would be provided accordingly.
  • the wings 801 of the arches form with their base 800 an angle slightly greater than 90 °.
  • the trays are therefore supported at their bottom but also retained transversely for the end trays by the wings 80.
  • rows 1A and 1B are successively entered by their ends by exerting a tightening.
  • This tightening is carried out in a generally transverse direction relative to the contiguous or substantially contiguous edges of the trays of each row.
  • the mobile loading means 7 are piloted so that the bracket 72 comes into line with a row of trays, for example row 1A.
  • the clips 73 are then piloted so as to come and grasp the row 1A of trays by exerting a clamping action to apply the trays against each other by their opposite faces.
  • Row 1A thus entered forms an assembly E which has a certain mechanical cohesion, which means that no tray can be detached from the assembly.
  • the tray placed in the central part of the row is similar to a keystone which is used to keep the other trays in balance.
  • the length L2 of the row 1A is significantly less than the width L1 of the packaging, so that the row of trays can be deposited therein by gravity without problem, that is to say without encountering problems of implementation in an inadequate manner.
  • the second row 1B is manipulated and then transferred to the packaging C ' .
  • the forward speed of the conveyor 3 ' is higher than that of the conveyor 3.
  • the switching device is controlled so as to "connect" with the corridor C1, that is to say to be arranged in the extension of the latter.
  • the switching device is then transferred by the conveyor 3 'from the corridor Co to the corridor C1 where they come into abutment against the bar 31'.
  • the switching device is then moved in the extension of the corridor C2, the finger 92 having in the meantime returned to its non-retracted position.
  • the ten trays then slide on the rollers 41 'and then are stopped by the stop 42'. They then form two rows 1A and 1B of trays.
  • the actuator of the transfer element 8 is then actuated to cause it to be raised.
  • FIG. 11 This is what has been shown in FIG. 11 in which an assembly E formed of a row of four trays 1 is grasped in a first direction F 1 transverse to the adjoining upper edges of the trays, and in a second direction F 2 , perpendicular to the first, that is to say parallel to the contiguous edges.
  • a first pair of pliers 73 is used, but also a second pair 73 '. These are preferably carried by the same bracket 72 which, when viewed from above, takes the form of a cross.
  • a set E formed by several rows of trays, for example two, three or four.
  • the assembly E is formed of two identical rows and joined 1A and 1B of trays.
  • the rows 1A and 1B are formed from identical trays but arranged in a different manner. There is shown in dotted lines, an additional row 1C formed of trays of a different model.
  • the four clamps used to grip these assemblies must have sufficient dimensions to be applied against a substantial part of the four sides of these assemblies.
  • the tightening directions are referenced F 1 and F 2 .
  • a curved shape can be given to them beforehand by means of a transfer member such as that 8 already described. This will form a bend along an axis parallel to the contiguous edges of the trays of the same row.
  • a second bending along an axis parallel to the contiguous edges of the rows 1A, 1B (or 1B and 1C) will be carried out due to the tightening in the direction F 2 .
  • a transfer member 8 such as that shown in FIG. 14. It differs from that already described only by the fact that the hoops 80 ′ arranged furthest apart. interior, extend to a height greater than that of the arches 80 arranged outside. The difference in height is for example of the order of 1 to 1.2 cm.
  • the transfer element proves to be very useful for an assembly formed from 'at least three rows.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packaging Frangible Articles (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
  • Packaging Of Special Articles (AREA)

Claims (15)

  1. Verfahren für die Handhabung von pyramidenstumpfförmigen Schalen (1) und Einsetzen dieser Schalen (1) in eine Verpackung (C'), das folgende Arbeitsschritte umfaßt:
    a) Herstellen von einem Satz (E) Schalen (1), welcher mindestens aus einer Schalenreihe (1A, 1B, 1C, 1D) Schalen (1) besteht, deren obere Ränder sich ganz oder im wesentlichen aneinanderfügen;
    b) diesen Satz (E) entlang einer parallel zu den sich aneinander fügenden Rändern und unterhalb der Schalenreihe verlaufenden Krümmungsachse in eine gekrümmte Form bringen;
    c) den Satz (E) durch Beaufschlagen einer Spannkraft in einer weitgehend transversalen Richtung zu den sich aneinander fügenden Rändern ergreifen, um die Schalen (1) mit ihren gegenüberliegenden Flächen Seite an Seite anzuordnen;
    d) diesen Satz (E) oberhalb der Verpackung (C') positionieren;
    e) die Schalen (1) durch Lockerung der Spannkraft mit Hilfe der Schwerkraft in die Verpackung (C') absenken.
  2. Verfahren nach Anspruch 1,
    dadurch gekennzeichnet, daß
    der Satz (E) auch durch Beaufschlagung einer Spannkraft weitgehend parallel zu den sich aneinander fügenden Rändern erfaßt wird.
  3. Verfahren nach einem der Ansprüche 1 oder 2,
    dadurch gekennzeichnet, daß
    der Satz (E) mindestens zwei sich ganz oder im wesentlichen aneinander fügende Reihen (1A, 1B, 1C, 1D) aufweist, und daß er einer weiteren Krümmung entlang einer rechtwinklig zu der ersten Achse verlaufenden Krümmungsachse, das heißt, parallel zu den sich aneinander fügenden Rändern der Reihen (1A, 1B, 1C, 1D) unterzogen wird.
  4. Verfahren nach einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet, daß
    der Satz (E) mit Hilfe eines entsprechend gekrümmten Transferelementes (8) in die gekrümmte Form gebracht wird.
  5. Verfahren nach Anspruch 4,
    dadurch gekennzeichnet, daß
    im Arbeitsschritt a) ein flacher Satz (E) Schalen (1) gebildet wird, und dadurch, daß die gekrümmte Form dadurch hergestellt wird, daß das Transferelement (8) von der Unterseite des Satzes (E) herangeführt wird.
  6. Anlage für die Handhabung von pyramidenstumpfförmigen Schalen (1) und deren Einsetzen in eine Verpackung, welche folgendes umfaßt:
    - Halterungsmittel (41, 41') für einen Satz (E) Schalen (1), welcher aus mindestens einer Schalenreihe (1A, 1B, 1C, 1D) Schalen (1) besteht, deren obere Ränder sich aneinander fügen oder im wesentlichen aneinander fügen;
    - mindestens ein unter den Halterungsmitteln (41, 41') lotrecht und zu diesen vertikal verschiebbar angeordnetes gekrümmtes Element (8), um den Satz (E) so anzuheben und zu halten, daß der Satz (E) mindestens entlang einer parallel zu den sich aneinander fügenden Rändern der Schalenreihe verlaufenden Krümmungsachse eine gekrümmte Form annimmt, wobei diese Achse unter der Schalenreihe so angeordnet ist, daß die gegenüberliegenden Flächen von zwei benachbarten Schalen (1) weitgehend parallel und Seite an Seite angeordnet sind;
    - Belademittel , welche aus mindestens einem Paar Zangen (73) bestehen, um auf den Satz (E) eine Spannkraft mindestens entlang einer weitgehend quer zu den sich aneinander fügenden Rändern verlaufenden Richtung zu beaufschlagen.
  7. Anlage nach Anspruch 6,
    dadurch gekennzeichnet, daß
    das Transferelement (8) mindestens ein Paar mit einer gekrümmten Basis (800) versehene Bügel (80) aufweist, deren Enden (801) hochgezogen sind, und daß die Spreizung zwischen einem Paar Bügel (80) so ausgelegt ist, daß sie die Schalen (1) einer Schalenreihe (1A, 1B, 1C, 1D) halten kann.
  8. Anlage nach einem der Ansprüche 6 bis 7,
    dadurch gekennzeichnet, daß
    das Paar Zangen (73) beweglich ist, und dadurch, daß sie von den Halterungsmitteln (41, 41') lotrecht über eine Verpackung (C') bewegt werden können.
  9. Anlage nach einem der Ansprüche 6 bis 8,
    dadurch gekennzeichnet, daß
    die Halterungsmittel (41) aus einem Paar flacher paralleler Stangen bestehen.
  10. Anlage nach einem der Ansprüche 7 und 9 in Kombination,
    dadurch gekennzeichnet, daß
    die Spreizung zwischen einem Paar Bügel (80) kleiner ist, als die Spreizung zwischen einem Paar Stangen (41) und dadurch, daß bei der Bewegung des Transferelementes (8) in Richtung der Stangen (41) die Bügel (80) zwischen den Stangen (41) eines gleichen Paares positioniert werden.
  11. Anlage nach einem der Ansprüche 6 bis 10,
    dadurch gekennzeichnet, daß
    die Halterungsmittel (41) rechtwinklig zu einem beweglichen Endlosförderband (3) angeordnet sind, welches die Schalen (1) fortlaufend transportiert, und dadurch, daß sie Mittel (40, 40') aufweist, um die Schalen (1) von dem Förderband (3) auf Halterungsmittel (41) zu leiten, um einen Satz (E) herzustellen, der aus mindestens einer Schalenreihe (1A, 1B, 1C, 1D) besteht.
  12. Anlage nach Anspruch 11,
    dadurch gekennzeichnet, daß
    diese Mittel (40, 40') mindestens einen Ausstoßer (402, 402') aufweisen, welcher axial zu den Halterungsmitteln (41) jedoch an der gegenüberliegenden Seite des Förderbandes (3) angeordnet ist, wobei dieser Ausstoßer (402, 402') dafür ausgelegt ist, die Schalen (1) transversal von dem Förderband (3) auf die Halterungsmittel (41) zu befördern.
  13. Anlage nach Anspruch 12,
    dadurch gekennzeichnet, daß
    dieser Ausstoßer (402, 402') fest an einen Zylinder (40, 40') mit Doppeleffekt angeschlossen ist.
  14. Anlage nach einem der Ansprüche 6 bis 8,
    dadurch gekennzeichnet, daß
    sie ein Verteilermittel (9) und ein bewegliches Förderband (3') aufweist, welche diese Schalen (1) in parallelen Linien innerhalb von Korridoren (C1, C2, C3, C4, C5) verteilen können, und dadurch, daß die Halterungsmittel (41') in der Verlängerung des Förderbandes (3') angeordnet sind.
  15. Anlage nach Anspruch 14,
    dadurch gekennzeichnet, daß
    sie zwischen dem Förderband (3') und den Halterungsmitteln (41') einen einziehbaren Anschlag (31') aufweist, der eingezogen wird, sobald die Reihen von Schalen (1) hergestellt worden sind, damit sie auf die Halterungsmittel (41') transferiert werden können.
EP95460009A 1994-02-25 1995-02-23 Verfahren und Anlage um pyramidenstumpfförmige Schalen handzuhaben und um diese in eine Verpackung einzusetzen Expired - Lifetime EP0671327B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9402423A FR2716666B1 (fr) 1994-02-25 1994-02-25 Procédé et installation pour manipuler des barquettes en forme de tronc de pyramide et les mettre en place dans un emballage.
FR9402423 1994-02-25

Publications (2)

Publication Number Publication Date
EP0671327A1 EP0671327A1 (de) 1995-09-13
EP0671327B1 true EP0671327B1 (de) 1997-08-13

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EP95460009A Expired - Lifetime EP0671327B1 (de) 1994-02-25 1995-02-23 Verfahren und Anlage um pyramidenstumpfförmige Schalen handzuhaben und um diese in eine Verpackung einzusetzen

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EP (1) EP0671327B1 (de)
AT (1) ATE156765T1 (de)
DE (1) DE69500535D1 (de)
ES (1) ES2108546T3 (de)
FR (1) FR2716666B1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109515837B (zh) * 2018-10-29 2021-05-04 昆明鼎承科技有限公司 操纵烟包自动装入单层条盒的***

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3491508A (en) * 1966-07-25 1970-01-27 Johns Nigrelli Johns Inverted case loader
DE2440199A1 (de) * 1974-08-22 1976-03-04 4 P Verpackungen Gmbh Packzange
DE2510686C2 (de) * 1975-03-12 1986-09-18 Siegfried Ing.(grad.) 8901 Königsbrunn Ammann Vorrichtung zum aufeinanderfolgenden Verpacken
DE3424233A1 (de) * 1984-06-30 1986-01-23 Alfons Dipl.-Ing. 5208 Eitorf Güldenring Verfahren und vorrichtung zum befuellen von kartons

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DE69500535D1 (de) 1997-09-18
FR2716666B1 (fr) 1996-05-10
EP0671327A1 (de) 1995-09-13
FR2716666A1 (fr) 1995-09-01
ES2108546T3 (es) 1997-12-16
ATE156765T1 (de) 1997-08-15

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