EP0694382A1 - Verfahren und Vorrichtung zur Herstellung von Schachteln mit ein Oberteil - Google Patents

Verfahren und Vorrichtung zur Herstellung von Schachteln mit ein Oberteil Download PDF

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Publication number
EP0694382A1
EP0694382A1 EP95401745A EP95401745A EP0694382A1 EP 0694382 A1 EP0694382 A1 EP 0694382A1 EP 95401745 A EP95401745 A EP 95401745A EP 95401745 A EP95401745 A EP 95401745A EP 0694382 A1 EP0694382 A1 EP 0694382A1
Authority
EP
European Patent Office
Prior art keywords
side walls
flap
cardboard
piece
recesses
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.)
Withdrawn
Application number
EP95401745A
Other languages
English (en)
French (fr)
Inventor
Philippe Peauger
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0694382A1 publication Critical patent/EP0694382A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/262—Folding sheets, blanks or webs involving folding, leading, or trailing flaps of blanks

Definitions

  • the present invention relates to a method for producing cardboard boxes with upper tray and an assembly allowing the production of such boxes.
  • Cardboard boxes are used more and more frequently for packaging various products, in particular food products such as fruit or vegetables. These boxes consist of a bottom and four sides. Optionally, the connection angles between the sides are reinforced by a structure called a beam.
  • cardboard packaging boxes that can be called cardboard boxes with upper tray. These cardboard boxes are typically used for wrapping and packaging products contained in cylindrical bottles or in cylindrical or substantially cylindrical jars such as yogurts, jars for condiment, sauce packaging, etc.
  • Figure 1 shows a cardboard box with upper tray.
  • This consists of a rectangular bottom 10 not visible in the figure and by four vertical sides 12, 14, 16 and 18. At the upper edge of the sides 12 to 18 extends an upper plate 20 parallel to the bottom 10. Most often the plate 20 is constituted by two half-plates 20a and 20b connected together in their central part, each half-plate 20a, 20b being constituted by a flap of the corresponding sides 12 and 16.
  • the upper plate 20 is provided with 'alignments of holes such as 22 which allow the engagement of different products to be packaged. The bottom of these products rests on the bottom 10 of the cardboard box. To allow the stacking of these different boxes, it is necessary to provide above the upper plate 20 vertical uprights such as 24 which extend the corners of the sides of the box. These uprights 24 preferably end in a bevelled part 26 which can penetrate into recesses 28 formed in the bottom of the box when the different boxes are stacked.
  • An object of the present invention is to provide a method and a set of production of cardboard boxes with upper tray of the type shown in Figure 1 which, while ensuring a very precise geometric definition of the different parts of the box, require only '' a limited number of operations to maintain the various constituent parts of the body for its gluing.
  • the piece of cardboard comprises a single flap having the same dimensions as the bottom and in that said flap comprises, adjacent to its free edge, two additional recesses having the same shape as the first two recesses .
  • the piece of cardboard comprises two flaps, each flap being associated with one of said first side walls, each flap comprising said recesses.
  • the invention also relates to an assembly for making a cardboard box with an upper tray comprising, on the one hand, a sheet of cardboard having the folding and cutting lines defined above. and, on the other hand, a folding and forming machine comprising in particular the four holding parts defined above.
  • This cardboard sheet comprises a first rectangular area 30 intended to constitute the bottom of the box and four rectangular parts 32, 34, 36, the part 38 not being visible, these rectangular portions being intended to form the side walls 12 to 18 from the cash register.
  • These rectangular parts 32 to 38 are connected to the bottom 30 by pre-folding lines such as 40.
  • pre-folding lines such as 40.
  • the rectangular portions 32 to 38 are provided with cutouts 42 which will allow the engagement of the ends of the vertical uprights of the lower box when stacking the boxes.
  • the rectangular zones 34 and 36 intended to form the large side walls of the box are extended by flaps 44 and 46 intended to form, after folding, the two upper half-plates 20a and 20b of FIG. 1.
  • the flaps 44 and 46 are connected to the sides 34 and 36 by pre-folding lines such as 48.
  • the flaps 44 and 46 are provided with the orifices 50.
  • Each flap 44 and 46 is extended at each of these ends by a tab. 52 intended to fix the ends of the half-trays after their folding on the short sides 32, 38 of the box.
  • FIG. 2 also shows that the portions 34 and 36 intended to form the side walls of the long sides of the box are extended at each of their ends by a specific cutout 54 intended, after folding, to constitute the vertical uprights 24 of the box.
  • These cutouts 54 include a bevelled part 56 which extends beyond the upper edge of the sides 34 and 36.
  • Each cutout 54 comprises an axial pre-folding line 58 which is in line with the pre-folding line 59 separating the bottom 30 of the small sides 32, 38 of the body. It will be understood that the cutout 54 being in its bevelled part totally separated from the flap 44, the flap 44 in this zone defines a recess 60 which preferably communicates with one of the orifices 50, the latter bearing the reference 50 '.
  • the vertically movable assembly essentially comprises four holding pieces 72, 74, 76 and 78 which are each connected by a horizontal arm 80 to vertical rods 82, themselves connected to one another by horizontal beams 84 allowing the overall vertical movement of the holding pieces 72 to 78. It can be seen that the arm 8a is integral with the end of the holding piece 78 furthest from the side wall 34.
  • the four holding pieces are applied in the "corners" of the bottom 30 of the cardboard piece.
  • This arrangement of the holding pieces constitutes one of the essential elements of the invention.
  • the machine comprises in known manner static folding plates 86, 88, 90 and 92, these plates causing in known manner the raising of the side walls 32 to 38 of the cardboard box when the bottom 30 is pushed in. the effect of lowering the holding pieces 72 to 78.
  • the machine also comprises, in a known manner, different folding members controlled by jacks or by other mechanical members such as the folding members 94 and 96 which allow the folding down.
  • flaps 44 and 46 intended to form the upper half-trays by pivoting around the folding lines 48 as well as folding parts shown diagrammatically at 98 and 100 which allow the folding of the portions 54a of the sheet intended to constitute the uprights vertical and to initiate the folding of the tabs 52 of the flaps 44 and 46.
  • the movements of these different folding members 94 to 100 are synchronized as is well known in this type machine and in the final position these members maintain the folded parts of the cardboard sheet for bonding at the desired locations, in order to produce the box.
  • the holding piece 78 has a rectangular parallelepiped shape which has a height h, a length I1 and a thickness e.
  • the length of the horizontal arm 80 connecting the part 78 to the vertical rods 82 is equal to h '.
  • the part 78 comprises three active or reference faces, respectively its lower face 102, its external lateral face 104 and its lateral end face 106, these three faces defining orthogonal planes two by two.
  • the holding piece 78 when the holding piece 78 is lowered, its underside 102 is applied to the corner of the bottom 30 of the cardboard piece so that its end face 106 coincides with the fold line 40 and that its face 104 coincides with the fold line 59. It is understood that thus these three faces define three orthogonal reference planes two by two.
  • the height h of the holding piece 78 is slightly greater than the dimensions l of the side walls.
  • the arms 8a are above the edges side walls after folding.
  • the thickness e of the retaining piece is less than the width e 'of the cutout 60 in the flaps 44, 46.
  • the length l1 of the retaining piece is less than the length l2 of the cutout 60 and finally the free length h ′ of the horizontal arm 80 is greater than the dimension l of the side walls 32 to 38 and therefore of the tabs 52.
  • the movable folding members 98 cause the portions 54a of the extensions 54a to be folded at 90 °, the portions 54a being applied to the external face of the short sides 32 and 38 and held in this position. It is understood that in this position which is illustrated in FIG. 6a the sides 32 and 34 are held in a strictly vertical position due to their support against the faces 104 and 106 of the holding piece 78 whose lower face 102 is in support on the bottom 30. This is true for the four corners of the body associated with the four holding pieces. Furthermore, the portion 54a of each extension 54 is kept pressed against the external face of the rim by the holding and folding member 98.
  • FIG. 6b illustrates the phase of folding down the flap 44 relative to the edge 34. Taking into account the presence of the recess 60 and the dimensions of piece 78, it can be seen that this folding is not hampered by the presence of the holding pieces 78 and their arms 80. At the end of the folding operation such as illustrated in Figure 6c, the flap 44 is supported on the upper edge of the short sides 32 and 38.
  • the extensions 54 intended to form the vertical uprights are well pressed against the side walls of the box.
  • the tabs 52 are completely folded so that they are pressed against the external faces of the short sides 32 and 38. In this position, the various folded parts are held firmly against each other by having a rigorous geometry due to the presence of the holding pieces 72'a, 78 during all these operations.
  • the upper plate consists of two half-plates formed by two flaps. We would not depart from the invention if the upper plate consisted of a single flap having the same dimensions as the bottom 30. This is illustrated in FIG. 8.
  • the wall 36 is devoid of a flap while the side wall 34 is provided with a flap 130 having the same dimensions as the bottom 30.
  • the flap 130 has, near its free edge 132, two recesses 134
  • the recesses 134 have the same dimensions as the recesses 60. It is understood that the recesses 134 play exactly the same role as the recesses 60 and correspond to the holding pieces 74 and 76.
  • the preforming machine is devoid of the folding member 96.

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EP95401745A 1994-07-26 1995-07-24 Verfahren und Vorrichtung zur Herstellung von Schachteln mit ein Oberteil Withdrawn EP0694382A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9409241A FR2723029B1 (fr) 1994-07-26 1994-07-26 Procede et ensemble de realisation de caisses en carton a plateau superieur
FR9409241 1994-07-26

Publications (1)

Publication Number Publication Date
EP0694382A1 true EP0694382A1 (de) 1996-01-31

Family

ID=9465753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95401745A Withdrawn EP0694382A1 (de) 1994-07-26 1995-07-24 Verfahren und Vorrichtung zur Herstellung von Schachteln mit ein Oberteil

Country Status (2)

Country Link
EP (1) EP0694382A1 (de)
FR (1) FR2723029B1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2515141A1 (fr) * 1981-09-29 1983-04-29 Socar Dispositif de mise en volume d'un emballage
EP0234234A2 (de) * 1986-01-22 1987-09-02 Badische Karton- und Pappenfabrik Zweigwerk der Herzberger Papierfabrik Ludwig Osthushenrich GmbH & Co KG Steige aus einem faltbaren Zuschnitt
GB2268701A (en) * 1992-07-16 1994-01-19 Boix Maquinaria Sa Adjustable carton forming machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2515141A1 (fr) * 1981-09-29 1983-04-29 Socar Dispositif de mise en volume d'un emballage
EP0234234A2 (de) * 1986-01-22 1987-09-02 Badische Karton- und Pappenfabrik Zweigwerk der Herzberger Papierfabrik Ludwig Osthushenrich GmbH & Co KG Steige aus einem faltbaren Zuschnitt
GB2268701A (en) * 1992-07-16 1994-01-19 Boix Maquinaria Sa Adjustable carton forming machine

Also Published As

Publication number Publication date
FR2723029B1 (fr) 1996-10-25
FR2723029A1 (fr) 1996-02-02

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