EP2065308B1 - Verfahren zur Bearbeitung der Kanten einer Weichpackung - Google Patents

Verfahren zur Bearbeitung der Kanten einer Weichpackung Download PDF

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Publication number
EP2065308B1
EP2065308B1 EP08169937A EP08169937A EP2065308B1 EP 2065308 B1 EP2065308 B1 EP 2065308B1 EP 08169937 A EP08169937 A EP 08169937A EP 08169937 A EP08169937 A EP 08169937A EP 2065308 B1 EP2065308 B1 EP 2065308B1
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EP
European Patent Office
Prior art keywords
edge
soft
along
package
wrapping
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.)
Not-in-force
Application number
EP08169937A
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English (en)
French (fr)
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EP2065308A1 (de
Inventor
Gilberto Spirito
Ivanoe Bertuzzi
Andrea Biondi
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GD SpA
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GD SpA
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Publication of EP2065308B1 publication Critical patent/EP2065308B1/de
Not-in-force 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/24—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for shaping or reshaping completed packages
    • 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
    • B65B19/00—Packaging rod-shaped or tubular articles susceptible to damage by abrasion or pressure, e.g. cigarettes, cigars, macaroni, spaghetti, drinking straws or welding electrodes
    • B65B19/02—Packaging cigarettes

Definitions

  • the present invention relates to a method for processing the edges of a soft package.
  • a soft packet of cigarettes comprises a parallelepiped-shaped inner package comprising a group of cigarettes wrapped in a sheet of soft (i.e. non-rigid) inner wrapping of paper or foil; and an outer package comprising a sheet of soft (i.e. non-rigid) outer wrapping which is wrapped about the inner package to cover five walls of the inner package (i.e. leaving the top wall of the inner package exposed).
  • the inner package wraps about the end cigarettes in the group, and so tends to assume a rounded shape (i.e. an arc shape, thus forming rounded edges).
  • a rounded shape i.e. an arc shape, thus forming rounded edges.
  • the outer wrapping is wrapped and folded about the inner package, it is impossible to achieve a sharp, precise fold of the outer wrapping along the longitudinal edges.
  • the outer wrapping is rounded (i.e. arc-shaped, thus forming rounded edges), mainly on account of being folded about an inner package with rounded longitudinal edges.
  • a rounded, as opposed to square, outer wrapping along the longitudinal edges is particularly undesirable by producing an overall look of the soft packet of cigarettes that is not very popular with consumers, who tend to opt for soft packets of cigarettes with sharp, well pronounced edges.
  • a rigid blank is folded about the inner package to form a rigid outer package; and the flat rigid blank is weakened along the eventual edges of the outer package before being folded about the inner package, so that the rigid outer package has sharp square edges.
  • a soft wrapping cannot be weakened along the eventual edges of the soft outer package before being folded, on account of the soft wrapping, once weakened, no longer being manageable on the packing machine, and on account of the exact position of the edges of the outer package being impossible to determine accurately enough beforehand.
  • US1988839 discloses a package smoothing apparatus for smoothing or eliminating blisters from wrapped packages, container boxes or the like.
  • a packages is fed into the space defined by four presser blocks each comprising a shoe whose receiving end is flared to facilitate reception of the package; before entrance of a package these shoes define a rectangle less than the rectangular outline of the package and as the package enters these shoes are moved outwardly against the resistance offered by suitable resilient means.
  • These shoes as the package is moved, irons down any wrapper blister tat he corners of the package.
  • Number 1 in Figures 1-3 indicates as a whole a soft package defined by a substantially parallelepiped-shaped soft packet of cigarettes with a rectangular cross section.
  • Packet 1 of cigarettes comprises a parallelepiped-shaped inner package 2 comprising a group 3 of cigarettes wrapped in a soft (i.e. non-rigid) inner wrapping 4 of foil; and a cup-shaped outer package 5 comprising a soft (i.e. non-rigid) outer wrapping 6 wrapped about inner package 2 to cover five walls of inner package 2 (i.e. leaving a top wall of inner package 2 exposed).
  • Outer package 5 is cup-shaped (i.e. open at the top), is in the form of a rectangular parallelepiped, and comprises a bottom wall 7, and four lateral walls 8 divided into two major lateral walls 8, and two minor lateral walls 8.
  • Four longitudinal edges 9 are defined between lateral walls 8, i.e. each longitudinal edge 9 defines the boundary between two adjacent lateral walls 8; and four transverse edges 10 are defined between bottom wall 7 and lateral walls 8, i.e. each transverse edge 10 defines the boundary between a lateral wall 8 and bottom wall 7.
  • inner package 2 wraps about the end cigarettes in group 3, and so tends to assume a rounded shape (i.e. an arc shape, thus forming rounded edges).
  • a rounded shape i.e. an arc shape, thus forming rounded edges.
  • outer wrapping 6 is wrapped and folded about inner package 2, it is impossible to achieve a sharp, precise fold of outer wrapping 6 along longitudinal edges 9.
  • outer wrapping 6, as opposed to being square and forming sharp edges is rounded (i.e. arc-shaped, thus forming rounded edges), mainly on account of being folded about an inner package 2 with rounded longitudinal edges.
  • outer package 5 is completed, i.e. once outer wrapping 6 is folded about inner package 2, longitudinal edges 9 of outer package 5 are subjected to a forming process (i.e. permanent local deformation of the material fibres) to shape the soft wrapping 6 along longitudinal edges 9 and obtain an outer wrapping 6 with sharp square longitudinal edges 9.
  • a forming process i.e. permanent local deformation of the material fibres
  • Shaping each longitudinal edge 9 comprises pressing inwards of outer package 5 the portions of walls 8 on either side of longitudinal edge 9, and, at the same time, enclosing the portions of walls 8 on either side of longitudinal edge 9 inside a square forming member 11 negatively reproducing the desired shape of outer wrapping 6 along longitudinal edge 9.
  • outer wrapping 6 adheres to the inner surface of forming member 11 and assumes a square, sharp-edged shape. Wrapping 6 is thus shaped along the sharp edge, and maintains its square shape (at least partly) when forming member 11 is removed from outer package 5.
  • FIG. 4 A comparison of Figures 4 and 5 clearly shows that, without being compressed, outer wrapping 6 could not adhere to the inner surface of forming member 11, on account of outer wrapping 6 not being flexible (i.e. capable of locally increasing in length) and so being unable to change from a rounded to a square shape, which, for a given surface area, would call for a roughly 27% increase in perimeter. Conversely, by reducing the surface area by compression, outer wrapping 6 can temporarily change from a rounded to a square shape (requiring a larger perimeter for a given surface area) and so adhere to the inner surface of forming member 11.
  • outer wrapping 6 (not being flexible) has a constant perimeter, but its surface area is temporarily reduced to allow it to adhere to the inner surface of forming member 11 negatively reproducing, as stated, the desired shape of outer wrapping 6 along longitudinal edge 9.
  • a conveyor 12 transfers packets 1 of cigarettes from a packing machine 13 to a cellophaning machine 14 along a straight path P parallel to longitudinal edges 9.
  • conveyor 12 may comprise two parallel, offset, horizontal conveyor belts for receiving packets 1 of cigarettes in between, and having vertical teeth by which to push packets 1 of cigarettes along path P.
  • the vertical teeth of the two conveyor belts define pockets, each for housing a respective packet 1 of cigarettes.
  • processing unit 15 comprises a forming channel 16, through which packets 1 of cigarettes are fed by conveyor 12, and which gradually gets smaller in cross section along longitudinal edges 9.
  • a packet 1 of cigarettes is fed through forming channel 16
  • the gradual reduction in the cross section of forming channel 16 along longitudinal edges 9 "draws" outer package 5 of packet 1 of cigarettes along longitudinal edges 9 to shape each longitudinal edge 9 as described above.
  • forming channel 16 comprises four forming members 11 located along the four longitudinal edges 9, and which produce a gradual reduction in the cross section of the channel along longitudinal edges 9.
  • each forming member 11 comprises two rollers 17 mounted to rotate idly about respective axes 18 of rotation, and which gradually reduce the cross section of the channel at a longitudinal edge 9.
  • the axes 18 of rotation of the two rollers 17 are normally perpendicular and coplanar, and each roller 17 has a lateral surface parallel to its axis 18 of rotation.
  • axes 18 of rotation of the two rollers 17 may be offset (i.e. non-coplanar) and/or slope with respect to each other by an angle of other than but preferably close to 90°.
  • the lateral surfaces of the two rollers 17 of each forming member 11 form a "V" (with a pointed tip in Figure 8 and a bevelled tip in Figure 9 ) negatively reproducing the shape of the corresponding longitudinal edge 9.
  • axes 18 of rotation of the two rollers 17 are parallel, and each roller 17 has a lateral surface sloping 45° with respect to its axis 18 of rotation.
  • the lateral surfaces of the two rollers 17 of each forming member 11 form a "V" (with a pointed tip in the Figure 16 embodiment and a bevelled tip in an embodiment not shown) negatively reproducing the shape of the corresponding longitudinal edge 9.
  • angle of the "V" formed by the two rollers 17 of each forming member 11 may be exactly or close to 90°, and is normally slightly over 90° (e.g. 95-105°).
  • the two rollers 17 of each forming member 11 are coaxial and side by side, and each have a lateral surface sloping roughly 45° with respect to the common axis 18 of rotation.
  • the lateral surfaces of the two rollers 17 slope roughly 45° in opposite directions with respect to the common axis 18 of rotation.
  • the lateral surfaces of the two rollers 17 of each forming member 11 form a "V" (with a pointed tip in the Figure 23 embodiment and a bevelled tip in an embodiment not shown) negatively reproducing the shape of the corresponding longitudinal edge 9.
  • each forming member 11 comprises two coaxial, side by side rollers 17; in a perfectly equivalent variation, the two coaxial, side by side rollers 17 are replaced by a single roller 17 with a central V-shaped annular groove.
  • the annular groove produces a single roller 17 with a V-shaped lateral surface negatively reproducing the shape of the corresponding longitudinal edge 9.
  • the angle of the "V" formed by the two rollers 17 of each forming member 11 may be exactly or close to 90°, and is normally slightly over 90° (e.g. 95-105°) .
  • the desired shape of outer wrapping 6 along each longitudinal edge 9 calls for forming a square longitudinal edge 9, so the two rollers 17 of each forming member 11 are positioned side by side so skim each other at a given point.
  • the desired shape of outer wrapping 6 along each longitudinal edge 9 calls for forming a bevelled longitudinal edge 9 (i.e. having two sharp edges separated by a portion sloping at an angle of 45°), so the two rollers 17 are positioned apart, and a flat central wall 19 is interposed between and at an angle of 45° to the two rollers 17.
  • a bevelled longitudinal edge 9 i.e. having two sharp edges separated by a portion sloping at an angle of 45°
  • the desired shape of outer wrapping 6 along each longitudinal edge 9 calls for forming a square longitudinal edge 9, so the fixed profile 20 comprises two flat perpendicular walls 21.
  • the desired shape of outer wrapping 6 along each longitudinal edge 9 calls for forming a bevelled longitudinal edge 9 (i.e. having two sharp edges separated by a portion sloping at an angle of 45°), so the fixed profile 20 has three flat walls 21 comprising a central flat wall 21 at 45° to the two lateral flat walls 21.
  • conveyor 12 feeds packets 1 of cigarettes through forming channel 16 in steps, and each packet 1 of cigarettes is arrested inside forming channel 16.
  • forming channel 16 comprises two pressure bodies 22 which move between a rest position (shown by the dash line in Figure 17 ) in which the two pressure bodies 22 are detached from outer package 5, and a work position (shown by the continuous line in Figure 17 ) in which the two pressure bodies 22 are pressed against outer package 5 at longitudinal edge 9.
  • the two pressure bodies 22 are hinged about respective axes 23 of rotation, to rotate between the rest and work positions, and the axes 23 of rotation of pressure bodies 22 are parallel to longitudinal edges 9.
  • conveyor 12 feeds packets 1 of cigarettes through forming channel 16 in steps, and each packet 1 of cigarettes is arrested inside forming channel 16.
  • each forming member 11 is connected to a suction device 24 for drawing outer wrapping 6 outwards of soft package 1.
  • forming member 1 is a square body with a suction opening 25 at longitudinal edge 9. Suction opening 25 is preferably wide enough to permit insertion of two flaps of the portion of outer wrapping 6 inside suction opening 25.
  • outer wrapping 6 may also be shaped along longitudinal edges 9 as shown in Figures 18-21 . More specifically, shaping outer wrapping 6 along at least one longitudinal edge 9 comprises drawing outwards of longitudinal edge 9 a portion of outer wrapping 6 on either side of longitudinal edge 9; pinching the portion of outer wrapping 6 projecting outwards of longitudinal edge 9, so as to squeeze together the two flaps of the portion and fold the two flaps over 90° (normally close to 180°) about a fold line parallel to longitudinal edge 9; and releasing the portion of outer wrapping 6 projecting from longitudinal edge 9.
  • suction device 24 is used to draw the portion of outer wrapping 6 on either side of longitudinal edge 9 outwards of outer package 5.
  • the forming method is applied to longitudinal edges 9, though the same obviously also applies to transverse edges 10.
  • processing edges 9 or 10 has numerous advantages: it is cheap and easy to implement, and provides for forming sharp square edges 9 or 10 of outer package 5. It is important to note that the method described of processing edges 9 or 10 is applied to the finished outer package 5 (i.e. after folding outer wrapping 6), which means processing unit 15 can be installed easily even on an existing packing system, with no major alterations to the system required. That is, processing unit 15 need simply be installed along an output conveyor of a packing machine (or cellophaning machine).
  • processing edges 9 or 10 also applies to any type of soft package other than a packet 1 of cigarettes, e.g. a soft carton of cigarettes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wrapping Of Specific Fragile Articles (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)

Claims (6)

  1. Ein Verfahren zum Bearbeiten der Kanten einer weichen Verpackung, wobei das Verfahren folgende Schritte umfasst:
    Falten eines weichen Umhüllungsmaterials (6) um einen Gegenstand (3), um die weiche Verpackung (5) so zu formen, dass sie eine Anzahl von Kanten (9) aufweist, von denen jede die Grenze zwischen zwei an einander grenzenden Wänden (8) der weichen Verpackung (5) festlegt, und
    Unterziehen der weichen Verpackung (5) einem Formprozess, nachdem das weiche Umhüllungsmaterial (6) um den Gegenstand (3) gefaltet wurde, um das weiche Umhüllungsmaterial (6) entlang wenigstens einer Kante (9) zu formen, um eine scharfe Kante (9) zu erhalten und das weiche Umhüllungsmaterial (6) entlang der Kante (9) abzukanten, indem die weiche Verpackung (5) ein einer Richtung parallel zu der Kante (9) durch einen formenden Kanal (16) geleitet wird, der im Querschnitt entlang der Kante (9) allmählich kleiner wird,
    wobei der formende Kanal (16) wenigstens ein formendes Bauteil (11) umfasst, welches die gewünschte Form des weichen Umhüllungsmaterials (6) entlang der Kante (9) als Negativ wiedergibt und gleichzeitig die Abschnitte der Wände (8) auf beiden Seiten der zu formenden Kante (9) umschließt,
    wobei das Verfahren dadurch gekennzeichnet ist, dass das formende Bauteil (11) zwei Rollen (17) umfasst, die in einer festen Position montiert sind, um ohne Antrieb um zwei entsprechende Rotationsachsen (18) zu rotieren, die allmähliche Verringerung im Querschnitt entlang der Kante (9) erzeugen, und entlang der zu formenden Kante (9) angeordnet sind, um die Abschnitte der Wände (8) auf beiden Seiten der Kante (9) zur Innenseite der weichen Verpackung (5) hin zu drücken.
  2. Ein Verfahren nach Anspruch 1, worin die Rotationsachsen (18) der beiden Rollen (17) senkrecht zueinander sind und jede Rolle (17) eine seitliche Oberfläche aufweist, die parallel zu ihrer Rotationsachse (18) ist.
  3. Ein Verfahren nach Anspruch 1, worin die Rotationsachsen (18) der beiden Rollen (17) parallel zueinander sind und jede Rolle (17) eine seitliche Oberfläche aufweist, die gegenüber ihrer Rotationsachse (18) geneigt ist.
  4. Ein Verfahren nach einem der Ansprüche 1 bis 3, worin die gewünschte Form des weichen Umhüllungsmaterials (6) entlang der Kante (9) das Bilden einer rechtwinkligen Kante erfordert und die beiden Rollen (17) so nebeneinander angeordnet sind, dass sie an einem vorgegebenen Punkt aneinander streichen.
  5. Ein Verfahren nach einem der Ansprüche 1 bis 3, worin die gewünschte Form des weichen Umhüllungsmaterials (6) entlang der Kante (9) das Bilden einer abgefasten Kante erfordert, die beiden Rollen (17) voneinander beabstandet angeordnet sind und eine flache Wand (19) zwischen den beiden Rollen (17) eingefügt wird, und zwar in einem Winkel von 45° gegenüber den beiden Rollen (17).
  6. Ein Verfahren zum Bearbeiten der Kanten einer weichen Verpackung, wobei das Verfahren folgende Schritte umfasst:
    Falten eines weichen Umhüllungsmaterials (6) um einen Gegenstand (3), um die weiche Verpackung (5) so zu formen, dass sie eine Anzahl von Kanten (9) aufweist, von denen jede die Grenze zwischen zwei an einander grenzenden Wänden (8) der weichen Verpackung (5) festlegt, und
    Unterziehen der weichen Verpackung (5) einem Formprozess, nachdem das weiche Umhüllungsmaterial (6) um den Gegenstand (3) gefaltet wurde, um das weiche Umhüllungsmaterial (6) entlang wenigstens einer Kante (9) zu formen, um eine scharfe Kante (9) zu erhalten und das weiche Umhüllungsmaterial (6) entlang der Kante (9) abzukanten, indem die weiche Verpackung (5) ein einer Richtung parallel zu der Kante (9) durch einen formenden Kanal (16) geleitet wird, der im Querschnitt entlang der Kante (9) allmählich kleiner wird,
    wobei der formende Kanal (16) wenigstens ein formendes Bauteil (11) umfasst, welches die gewünschte Form des weichen Umhüllungsmaterials (6) entlang der Kante (9) als Negativ wiedergibt und gleichzeitig die Abschnitte der Wände (8) auf beiden Seiten der zu formenden Kante (9) umschließt,
    wobei das Verfahren dadurch gekennzeichnet ist, dass das formende Bauteil (11) nur eine Rolle (17) umfasst, die in einer festen Position montiert sind, um ohne Antrieb um eine entsprechende Rotationsachse (18) zu rotieren, die die allmähliche Verringerung im Querschnitt entlang der Kante (9) erzeugt, entlang der zu formenden Kante (9) angeordnet ist und eine V-förmige seitliche Oberfläche aufweist, um die Abschnitte der Wände (8) auf beiden Seiten der Kante (9) zur Innenseite der weichen Verpackung (5) hin zu drücken.
EP08169937A 2007-11-27 2008-11-25 Verfahren zur Bearbeitung der Kanten einer Weichpackung Not-in-force EP2065308B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITBO20070784 ITBO20070784A1 (it) 2007-11-27 2007-11-27 Metodo ed unita per il trattamento degli spigoli di un incarto soffice.

Publications (2)

Publication Number Publication Date
EP2065308A1 EP2065308A1 (de) 2009-06-03
EP2065308B1 true EP2065308B1 (de) 2011-08-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08169937A Not-in-force EP2065308B1 (de) 2007-11-27 2008-11-25 Verfahren zur Bearbeitung der Kanten einer Weichpackung

Country Status (6)

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EP (1) EP2065308B1 (de)
JP (1) JP2009161247A (de)
CN (1) CN101445161A (de)
BR (1) BRPI0806145A2 (de)
IT (1) ITBO20070784A1 (de)
MX (1) MX2008015133A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103662207B (zh) * 2012-09-04 2017-06-06 深圳市富云帝科技有限公司 理角切角机构及其理角切角工艺与包装机
US10660343B2 (en) * 2017-08-18 2020-05-26 Hamilton Beach Brands, Inc. Apparatus and method for making sandwich
DE102017008337A1 (de) * 2017-09-05 2019-03-07 Focke & Co. (Gmbh & Co. Kg) Verfahren und Vorrichtung zum Herstellen von Zigarettenpackungen

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1988839A (en) * 1933-04-17 1935-01-22 Stokes & Smith Co Package smoothing apparatus
DE1218333B (de) * 1964-06-12 1966-06-02 Holstein & Kappert Maschf Vorrichtung zum kontinuierlichen Umformen von kissenfoermigen Einzelpackungen in Quaderform
JPS5210179U (de) * 1975-07-09 1977-01-24
JPS5659506U (de) * 1979-10-13 1981-05-21
JPS5837179B2 (ja) * 1981-12-25 1983-08-15 株式会社 富士機械製作所 背貼り部のない包装体とする包装方法
JPS60190602U (ja) * 1984-05-28 1985-12-17 大日本印刷株式会社 角筒形紙容器の密封折込み時における保形装置
NL9100430A (nl) * 1991-03-11 1992-10-01 Sara Lee De Nv Werkwijze en inrichting voor het bewerken van een met korrelig materiaal gevuld vacuuempak.
SE507955C2 (sv) * 1995-11-20 1998-08-03 Tetra Laval Holdings & Finance Sätt och anordning för efterformning av förpackningsbehållare
JPH10156866A (ja) * 1996-11-28 1998-06-16 Honda Motor Co Ltd 表皮材と基材との一体成形品の製造方法
ITBO20030481A1 (it) * 2003-08-06 2005-02-07 Azionaria Costruzioni Acma Spa Metodo e dispositivo per il confezionamento di prodotti.

Also Published As

Publication number Publication date
JP2009161247A (ja) 2009-07-23
CN101445161A (zh) 2009-06-03
EP2065308A1 (de) 2009-06-03
ITBO20070784A1 (it) 2009-05-28
MX2008015133A (es) 2009-05-28
BRPI0806145A2 (pt) 2010-01-19

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