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
  • B31B50/26—Folding sheets, blanks or webs
  • B31B50/28—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms
• • 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
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
  • B65D5/42—Details of containers or of foldable or erectable container blanks
  • B65D5/64—Lids
  • B65D5/68—Telescope flanged lids
• • 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
  • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
• • 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
  • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
  • B31B2105/002—Making boxes characterised by the shape of the blanks from which they are formed
  • B31B2105/0022—Making boxes from tubular webs or blanks, e.g. with separate bottoms, including tube or bottom forming operations
• • 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
  • B31B2110/00—Shape of rigid or semi-rigid containers
  • B31B2110/30—Shape of rigid or semi-rigid containers having a polygonal cross section
  • B31B2110/35—Shape of rigid or semi-rigid containers having a polygonal cross section rectangular, e.g. square
• • 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
  • B31B2120/00—Construction of rigid or semi-rigid containers
  • B31B2120/40—Construction of rigid or semi-rigid containers lined or internally reinforced
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D2301/00—Details of blanks
  • B65D2301/10—Blanks mutually positioned to minimise waste material upon cutting out the individual blank from a continuous or large sheet

Definitions

• the present invention relates to a corrugated cardboard single-piece blank for the manufacture of a display case comprising a belt comprising at least four main rectangular shutters connected together in pairs by parallel fold lines, and provided with two sets of flaps located on either side, suitable for forming respectively at least partially the bottom and the top of the body.
• It also relates to a box obtained with such a blank and the method and the device for manufacturing the box from this one-piece blank.
• the present invention finds a particularly important, although not exclusive, application in the field of packaging for rigid or semi-rigid products such as flexible cardboard cases, packages or bags, making it easy to present the products in or outside of their transport packaging in an immediate, clean and attractive way, especially on the shelves of department store shelves.
• Flap displays made from a single cardboard blank are also known. It has faces or side panels pre-cut after tearing said panels to obtain a display effect for the part retaining the products.
• Such a type of single-blank packaging has a weakened constitution due to the very existence of precut line of low tensile strength and also does not allow a sufficient and reliable quality of presentation, because of the tearing of the pre-cut portion which can be done unequally.
• the present invention aims to provide a blank, a box, a method and a device that responds better than those previously known to the requirements of the practice, particularly in that it allows automatic assembly at a high rate (greater than twenty cases per minute). ), while having a high strength and a rate of poorly formed crates almost zero, crates thus obtained by the invention are also easily put on pallet and allowing after opening an excellent quality of presentation, repeatedly. With the invention it thus becomes possible to produce a package, very economical, which can be transformed into a display shelf, by simply separating glue points, without requiring the removal of pre-cut areas during installation, while using only one blank.
• the present invention proposes in particular a single-piece corrugated cardboard blank for the manufacture of a display case comprising a belt comprising at least four main rectangular flaps, connected together in pairs by parallel fold lines, and provided with two sets of flaps located on either side, suitable for respectively forming at least partially the bottom and the top of the box, characterized in that the belt comprises a pre-cut transverse line for splitting the blank into two half-blanks , said transverse line determining on each side and for each parallel fold line, two separate fold line portions offset relative to each other to allow at least part of the catching of the thicknesses of cardboard during coating the second half-blank on the first half-blank around a mandrel.
• pre-cut transverse line we mean a line of attachment between the two half flanks which can be done by a few points of attachment between them, and are therefore easily tearable from each other in the plane and / or perpendicular to the plane of the blank.
• one or more of the following provisions are also used:
• the flap belt has a first central flap connected on both sides to a second and a third flap by two parallel fold lines, called first fold lines, the portions of the first fold lines of the first half blank being shifted inwardly of the first flap relative to the portions of the same first fold lines of the second half-blank, and the second and third flaps are themselves connected outwardly to a fourth flap or to a gluing tab, by two others of said parallel fold lines, called second fold lines, the portions of second fold lines of the first half-blank being shifted inwardly of the second and third shutters with respect to the portions of the same second fold lines of the second half-blank ;
• the offset between portions of the same first fold line is of a thickness or substantially of a cardboard thickness and the offsets between portions of the same second fold line is of two thicknesses or substantially of two thicknesses of cardboard ;
• two opposite flaps each comprise a substantially central opening disposed near the transverse precut line, arranged to allow the separation by pressure or pulling half a blank relative to the other after bonding one to the other;
• the transverse precut line has a trapezoid-shaped portion to obtain a display side inclined sidewalls.
• the invention also proposes a box obtained with a blank as described above.
• a packing box formed from a corrugated sheet material comprising two elements that are manually separable from one another, namely a first shelf-display element and a second element forming the part. upper body, the first and second elements being obtained from a single blank comprising a belt comprising at least four main rectangular flaps, connected together in pairs by parallel fold lines, and provided with two series of flaps located on either side, suitable for respectively forming at least partially the bottom and the top of the box, characterized in that the two elements are inserted into one another, in that the two elements are secured to each other. to one another by at least one point of glue and in that the belt comprises a pre-cut transverse line for splitting the blank into two halves.
• said transverse line determining on each side and for each parallel fold line, two separate fold line portions offset relative to each other to allow at least partly catching up cardboard thicknesses during coating the second half-blank on the first half-blank around a mandrel to form said box.
• the transverse precut line comprises a trapezoid-shaped portion for obtaining a display with inclined sidewalls.
• two opposite flaps each comprise a substantially central opening disposed near the transverse precut line arranged to allow the separation by pressure of one element relative to the other after bonding one on the other.
• This pressure of a half-blank relative to the other, exerted perpendicularly to the walls, is low and corresponds to a force of a few newtons, for example less than of the order of 10, see 5 newtons, see 2 or 1 newtons .
• the invention also proposes a method for producing a polygonal section packaging box from a corrugated sheet mono-blank, comprising a belt comprising at least four main rectangular flaps connected to one another two by parallel fold lines, and provided with two sets of flaps located on either side, suitable respectively to form at least partially the bottom and the top of the body, said belt comprising a pre-cut transverse line for splitting the blank in two half-blanks, characterized in that after unstacking the blank, separating the two half-blanks, depositing the first half-blank in a transfer channel, the second half-blank being held in a plane greater than that of said transfer channel, the first half-blank is transferred to a mandrel in during the passage, the first half-blank is wrapped around the mandrel, the transfer channel then being configured to allow the transfer of the second half-blank, said second half-blank is lowered onto the channel, the second half-blank is transferred to the second half-blan
• the half-blanks are separated by shearing fingers.
• the transfer of the half-blanks is obtained by finger (s) pusher (s), the coating around the mandrel being made by plating a flap of the belt of the half-blank concerned on the inner face of the mandrel, then coating and pressurizing the lateral flaps by retractable device embedded on the flap coating system.
• the invention also proposes a device for forming a box from a corrugated sheet mono-blank, comprising a belt comprising at least four main rectangular flaps connected together in pairs by parallel fold lines. , and provided with two sets of flaps located on either side, suitable for respectively forming at least partially the bottom and the top of the box, said belt comprising a pre-cut transverse line for splitting the blank into two half-blanks, characterized in that it comprises an unstacking assembly of the blank, a half-blank separation system, one of the another, a transfer channel of the first half-blank to a mandrel, the second half-blank being held in a plane greater than that of said transfer channel, means for gluing the first half-blank when transferring to a mandrel, means for coating the first half-blank around said mandrel, means for configuring the transfer channel to allow the transfer of the second half-blank to said mandrel, elevator means for lowering said second half-
• Means for ejecting the packaging thus formed are then also provided.
• FIG. 1 is a perspective view of a package according to a first embodiment of the invention.
• Figure 2 is a perspective view of the package of Figure 1 after separation showing the display element.
• FIG. 3 is a plan view of the one-piece blank allowing the packaging of FIG. 1 to be obtained.
• FIG. 4 is a plan view of a one-piece blank according to another embodiment of FIG.
• FIG. 5 to 11 show in perspective the steps of forming the package of Figure 1 according to the embodiment of the invention more particularly described here.
• FIG. 1 shows a parallelepipedal box 1 of corrugated cardboard, for example 3 mm thick, comprising a belt 2 comprising four rectangular walls 3.
• the box consists of two elements, namely a lid member 4 comprising flaps 5 constituting the perforated top 6 of the box and a display tray 7 provided with a bottom 8 advantageously consisting of one or more flaps covering 9 and having (cf Figure 2) an open front side face 10 and adjacent side faces 11 cut at an angle to better present the objects contained in the box (not shown).
• the lid fits on the tray display at least partially through an offset between fold lines 12 and 13 respectively forming the edges of the tray and the cover, allowing the embedding of one in the other or the other in one. In FIG. 1, the lid as capering the tray but this may very well be the opposite.
• the blank 14 comprises the belt 2 comprising four flaps 15, 16, 17 and 18 adapted to form the rectangular walls 3, and a tab or gluing tab 19 of substantially rectangular end.
• the belt 2 comprises a pre-cut transverse line 20 separating the blank into two half-blanks 21 and 22 which hold together only by a few attachment points and which, therefore, are easily removable from one another in the plane and / or perpendicular to the plane of the blank.
• the pre-cut line 20 has a first part 20 'parallel to the lower edge 23 of the end flap 15, which also extends on a first part of the adjacent flap 16, then a second part upwardly 20 '', for example, 2/3 of the flap, extended by a third portion 20 '''again parallel to the lower edge 23 of the flaps on a second portion of the flap 16, over the entire central flap 17 and a first portion of the last flap 18 back down slantwise, 20 '', symmetrically to the flap 16 and end parallel to the edge NCI 'laughing on the last part 20' of the flap 18 and on the bonding tab 19, so that the pre-cut line has an isosceles trapezoid-shaped portion for obtaining the inclined side wall display 11 of FIG.
• each of the fold lines 24, 25, 26 and 27 connecting two by two and respectively the flaps 15, 16, 17, 18 and the tongue 19, have two portions 24 'and 24''; 25 ', 25 ", 26', 26” and 27 ', 27 "determined on either side of the transverse line 20, offset relative to each other to allow the catching up of the thicknesses of cardboard during the coating of the second half-blank on the first half-blank around a mandrel or vice versa
• the single-piece blank 14 comprises the first central flap 17, connected on both sides to the second flap 16 and the third branch 18 by first fold lines 25 and 26 parallel, the portions 25 'and 26' below the fold lines corresponding to the first half-blank 21 being offset inward of said first pane with respect 'to the portions 25 "and 26 '' of the second half blank 22, a cardboard thickness, or slightly less than the latter.
• the second and third flaps 16 and 18 are themselves connected outwards to a fourth flap 16 on one side and to the gluing tab 19 of the other by first fold lines comprising in turn two lower portions. 24 'and 27' corresponding to the first half-blank and shifted towards the inside of the blank, that is to say towards the second and third flaps respectively relative to the second portions 24 '' and 27 "of the second half-blank 22 this two times of two layers of cardboard or substantially of two thicknesses, so as to allow a coating of the second blank 22 on the first 21, as shown in Figure 1.
• the belt of rectangular flaps further comprises, on both sides, connected by second fold lines 28, perpendicular to the first fold lines, two series of flaps, namely a first series 29 of flaps connected to the first half-blank 21 and a second series of flaps 30 connected to the second half-blank 22, said flaps being substantially rectangular and arranged to partially form at least the top and the bottom . of the fund.
• the first half blank 21 further comprises, on each of the two opposite flaps 16 and 18, a substantially central opening 31 disposed near the transverse precut line 20 which will allow the two half-blanks to separate from one another by pressure or traction of a half blank with respect to the other, after bonding one on the other which is done by two bonding points and / or bonding lines 32 easily separable, for example located on both sides other of said opening, and initially deposited facing said first half-blank.
• simple pressure is meant a pressure of one cut relative to the other by a force of a few newtons, for example less than of the order of 10 or even 5 newtons, sufficient to allow the delamination of the cardboard and / or the tearing off the lines of glue. More specifically, to separate the lid of the display, the user passes a finger in the opening and then clings to the other half blank that pulls outward.
• FIG. 4 shows another embodiment of a blank 33 according to the invention which comprises a first half-blank 34 connected to the second half-blank 35 by a pre-cut transverse line 36 parallel to the second fold lines 37, so that the lower tray is found to be of parallelepipedal shape.
• the first fold lines between the first half-blank and the second half-blank are shifted identically to that described with reference to FIG. 3.
• the method of forming the box around a mandrel from the figures will now be described. 5 to 11.
• the two half-blanks 21 and 22 are separated from each other, for example by lateral traction in the direction of the arrow 40 of the first half-blank relative to the second half-blank. blank.
• the first half-blank 21 is wrapped around the mandrel (not shown) so as to form the lower part of the container (FIG. 7).
• the second half-blank is brought opposite the end 41 of the first half-blank forming a tray, knowing that the first half-blank or the second half-blank has already been glued at the points of gluing, the latter being, remember it can then be easily detached by a user so as to separate the lid of the tray.
• the second half-blank is then coated (FIG. 9) around the end of the first half-blank so as to form (see FIG. 10) the package around the mandrel by folding back the last wall 15 of the second half-blank 22 and gluing on the tongue 19 opposite.
• the flaps 29 of the bottom of the tray are closed on the mandrel to form the bottom of the checkout.
• the packaging thus formed is ejected, for example by a jack located inside the mandrel.
• the open crate 1 can then, after setting vertically, be filled from above, before closing the flaps 30 of the top and transport.
• the device 50 comprises a set 51 for feeding blanks or single-piece blanks 14 intended to form the boxes.
• This feed assembly 51 is known per se and makes it possible to apprehend the blanks one by one by means of suction cups 52 and then to tilt them onto a platform 53 on which the separation of the two half-blanks can be performed.
• the two half-blanks 21 and 22 are separated by fingers of four or six elements 54 indicated schematically but (not visible in Figure 12 because located under the blank) positioned and distributed regularly to the rights of the precut line 57 constituted by the points of attachment.
• These elements are for example formed by flat metal rods retractable from below with a possibility of lateral pulling movement in the direction of the mandrel, which will be described below.
• the first half-blank 21 is then deposited in a transfer channel 58, the second half-blank remaining above the channel placed on an elevator 59.
• the channel comprises two guide rails 60, adjustable in distance relative to one another, to take into account the different widths of the half-blanks 21 and 22.
• the first half-blank 21 is then transferred (see FIGS. 14 and 15) under mandrel 62, provided with lower edges 63 and upper 64 by said transfer means comprising for example two tabs (not shown) which pass under the second half-blank .
• the first half-blank is then pushed to the fixed transfer stops 66 and plated under the mandrel by a movable plate or push plate 67.
• the first half-blank 21 (see FIGS. 16 and 17) is then encased around mandrel 62 by coating means, for example with a swinging arm, in a manner known per se, for example as described in patent EP 0334. 707.
• the accuracy of operation (correct positioning of the upper panel) is ensured by a retractable positioner (not shown) on which the upper panel rests when folding the bottom flaps and pressurize simultaneously the same bottom and the gluing paw.
• a retractable positioner (not shown) on which the upper panel rests when folding the bottom flaps and pressurize simultaneously the same bottom and the gluing paw.
• the transfer channel 58 deviates in width (see FIGS. 14 and 16) to adapt to the slightly larger size of the second half-blank 22, thanks to cylinders for example electric so as to the scope of the skilled person.
• This second half-blank 22 is then pushed forward by transfer cleats or jacks 67 (see FIG. 15) and then descended via the elevator 59 into the channel (see FIG. 17).
• the second half-blank is then transferred under the chuck identically to the first half-blank by one or more of the pusher cleats.
• the tongue or glue tab is also glued.
• the second half blank 22 is pressed under the mandrel in contact with the first half blank by the push plate which had been re-erased.
• the second half-blank is, in turn, coated in the same manner as indicated above.
• a retractable positioner acts on the corner of the box by pushing the top panel and the side panel adjacent to the gluing tab.
• the present invention is not limited to the embodiments more particularly described. On the contrary, it encompasses all the variants and in particular those in which the tray part is coated on the lid part, and / or the one or two half-blanks remain in the same plane.

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• 2006
  • 2006-04-12 FR FR0603236A patent/FR2899873B1/fr active Active
• 2007
  • 2007-04-11 US US12/296,497 patent/US8430296B2/en active Active
  • 2007-04-11 JP JP2009504778A patent/JP5571948B2/ja active Active
  • 2007-04-11 EP EP07731276.7A patent/EP2007635B1/de active Active
  • 2007-04-11 AU AU2007235828A patent/AU2007235828B2/en not_active Ceased
  • 2007-04-11 WO PCT/FR2007/000607 patent/WO2007116150A2/fr active Application Filing
• 2013
  • 2013-01-29 US US13/752,627 patent/US9662851B2/en active Active

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