Classifications

• • 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
  • B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
  • B65D5/60—Loose, or loosely attached, linings

Definitions

• the present invention relates to a packaging provided with an internal flexible envelope and its manufacturing process.
• the present invention aims to solve these technical problems satisfactorily.
• This object is achieved according to the invention by means of a packaging comprising a foldable box with a bottom with flaps whose internal volume is furnished with a flexible envelope passing through the bottom and fixed by one of its edges. end on one of said flaps, characterized in that at least one of the flaps adjacent to said flap carrying the envelope is provided with a transverse cutout for guiding and passing the envelope.
• the width of said cutout is less than or equal to the thickness of the envelope to obtain a blocking effect.
• each of said opposite adjacent flaps is provided with a cutout, the two cutouts being aligned with each other after folding of the box.
• the end edge of the envelope is fixed either on the outer face or on the inner face of the flap, and flat or by being folded.
• said envelope consists of two sheets joined by their fixing edge.
• said envelope is held flat, temporarily, on one of the side faces of the box before closing the bottom on at least one point of self-adhesive glue.
• the flap carrying the envelope is disposed outside after folding.
• Another object of the invention is a method of manufacturing a packaging from a foldable box with a bottom with flaps, characterized in that a flexible envelope is fixed by one of its end edges on one of the flaps at the bottom of the box folded flat, a transverse cutting of at least one of the adjacent flaps is carried out, then the box is unfolded and shaped by turning it over, passing said envelope through the bottom by said cutout to fill the interior volume of the box.
• the flap carrying the envelope is folded by trapping at least partially the adjacent flaps carrying a cutout.
• the transverse cut has a width less than or equal to the thickness of the envelope to block the latter.
• the packaging of the invention allows the flaps to be kept in their folding position by a self-locking effect, the operations of gluing or stapling the flaps are therefore no longer essential.
• the edge of the flap carrying the envelope which is preferably outside the box, can now receive a strip or an adhesive tape intended to cover both the free edge of the opposite flap and the area for fixing the envelope which is thus reinforced and this in particular when the envelope is fixed on the external face of the flap.
• This configuration thus improves both the presentation and the solidity and watertightness of the body.
• the packaged products are better protected and the volume available for packaging is optimized by the very fact that the envelope is not deformed and is guided through the bottom.
• the attachment of the envelope is more secure which reduces the risk of breakage, especially when the products are fragile and suspended by the envelope in the overturned box.
• FIG. 1 to 4 show perspective views of an embodiment of the packaging of the invention during the successive phases of its manufacture.
• FIG. 1 represents a box 1, folded flat, of the "American box” type, for example made of cardboard with a bottom.
• flaps lla-lld separated by notches 14.
• a flexible envelope 2 by one of its end edges 20 here on the outer face of a flap l ia of the bottom 10. It is also possible to fix the envelope 2 on the inside of the flap 11a.
• the end edge 20 of the envelope 2 is fixed to the flap 11a, being folded back on itself as shown but it is also possible to design a variant with a flat fixing in the extension of the flap 11a.
• the flaps lla-lld can be contiguous or normal and the bottom 10 can be a so-called automatic bottom, that is to say closable by automatic means or a bottom called semi-automatic.
• Each of the two flaps 11b, lld adjacent to the flap l ia carrying the envelope 2, is provided with a transverse cutout 110b, UOd for the passage and guidance of the envelope 2.
• cutouts 110b, UOd are aligned with each other as illustrated in FIGS. 3 and 4.
• the cutouts 110b, UOd are, for example, produced by slitting.
• the envelope 2 is here in the form of two sheets 2a, 2b.
• the envelope 2 is a bag or a simple sheet of plastic material or even a sheet folded up with bellows.
• the fixing of the end edge 20 on the flap 11a of the box creates a seal uniting the two sheets 2a, 2b and closing off one end of the envelope 2.
• the envelope 2 can also consist of an optionally heat-shrinkable sheath or an airbag or be made with a cellular material or flexible material.
• the width of the envelope 2 is less than or equal to the width of the flap 11a. Its length depends on the packaging capacity to create and the opportunity to make exterior setbacks after assembly.
• the envelope 2 is temporarily held flat on the side face of the box which extends the flap ia by at least one point of self-adhesive glue. In all cases, it is desirable that after shaping of the body 1, the envelope 2 garnish at least the entire height of the interior volume.
• the bottom 10 is closed by tilting the flaps l ia to lld, as shown in FIGS. 3 and 4 by passing the free end 22 of the envelope 2 through the cutouts 110b, UOd through the bottom as well constituted.
• the envelope 2 is thus folded back on itself (FIG. 3) to bypass the inner edge of the flap lia before engaging in the interior volume of the box 1.
• the flap lia carrying the envelope 2 is disposed on the flaps adjacent 11b, lld by trapping them at least in part, as shown in FIG. 3.
• the cutouts 110b, UOd divide each of the flaps 11b, ld in two portions of flaps and here in half-flaps llab, llbc and l lad, l lc.
• the half-flaps ll ab, l lad adjacent to the flap l ia, are positioned under the flap l ia while the other half-flaps llbc, lldc are positioned under the flap l ie.
• the respective inner edges of the cutouts 110b, UOd and of the flap l ie come into bearing contact against the envelope 2, thereby producing a blocking effect.
• the cutouts 110b, UOd are made without removing material, given its thickness, the casing 2 is then housed in the cutouts with lateral tightening, which produces deformation of the edges opposite the half-flaps and a setting under constraints.
• the blocking effect is obtained when the width of the transverse cuts is less than or equal to the thickness of the envelope 2.
• the body 1 is here symmetrical and the lower flaps 11a, 11 of the bottom 10 are identical to the upper flaps 13.
• the envelope 2 thus fills the interior volume of the box 1 and opens onto the upper face of the box 1 through the opening 12 to form an internal bag which may be waterproof.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Making Paper Articles (AREA)
• Cartons (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=9494917

Family Applications (1)

Country Status (3)

Families Citing this family (2)

Family Cites Families (3)

• 1996
  • 1996-08-08 FR FR9609998A patent/FR2752226B1/fr not_active Expired - Fee Related
• 1997
  • 1997-08-07 WO PCT/FR1997/001467 patent/WO1998006633A1/fr not_active Ceased
  • 1997-08-07 EP EP97936754A patent/EP0929449A1/de not_active Withdrawn

Non-Patent Citations (1)

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