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
  • B65D5/72—Contents-dispensing means
  • B65D5/74—Spouts
  • B65D5/746—Spouts formed separately from the container
• • 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
  • B65D2401/00—Tamper-indicating means
  • B65D2401/15—Tearable part of the closure

Definitions

• the present invention relates to a stopper pourer for containers, in particular for boxes for packaging liquids, comprising a pourer body fixed to the top wall of the container and a stopper element made in one piece with the pourer body. and articulated on the latter by a hinge.
• the opening of these boxes is carried out by tearing off or cutting the end of a welded fold, and by deformation of this open end to obtain a pouring spout.
• the absence of reclosure means that any manipulation and especially any overturning of the box involves a risk of accidental spillage, overflow or projection of the packaged product, which represents a major discomfort of use.
• certain fragile products such as milk or fruit juices which deteriorate very quickly due to their exposure to the ambient air can then undergo contamination making them unfit for consumption. Under these conditions, these products must be consumed very quickly after opening the box, even if the latter is kept in the refrigerator. Plug pourer systems for boxes of this type have been proposed recently.
• pourers comprise a pouring body in the form of a rectangular frame fixed by bonding to the outside face of the top wall of the box, around a pouring orifice made in the top wall of the box, and a shutter element made of one piece with the pouring body and connected to the latter by a hinge.
• the pouring orifice is covered externally by a shutter element in the form of an aluminum film bonded to the top wall of the box, inside the frame defined by the pouring body, this shutter element being torn off. before first use.
• This known stopper pourer eliminates the risk of accidental spillage of the contents in the event of the box overturning, but does not meet or only respond imperfectly to the other requirements imposed to give full satisfaction to the consumer, namely tight sealing before first opening , but also after filling, indication of break-in (tamper-evidence), easy opening, easy and regular payment.
• the aluminum film bonded to the outer face of the top wall of the box, around the pouring orifice requires a relatively high tear-off force, which creates discomfort in use.
• tearing off the obturating element often causes more or less significant projections of the contents of the container. It also happens that the shutter element tears and is therefore partially torn off, which does not favor pouring.
• the present invention relates to a stopper pourer for containers, in particular for boxes for packaging liquids, ensuring a tight closure both until the first opening and after recapping.
• the invention also relates to a stopper pourer allowing easy opening, without risk of projection of the contents of the container.
• the invention also relates to a stopper pourer guaranteeing a regular payment, without risk of splashing.
• the invention relates to a stopper pourer which prevents with certainty infiltration of the content in the carton of the material of the container.
• the stopper pourer object of the invention intended for containers, in particular boxes for packaging liquids, comprises a pouring shell intended to be fixed to the top wall of the container and a stopper element made in one piece with the pouring body and articulated on the latter by a hinge.
• the pouring body comprises a pouring orifice closed, until the first opening, by a cover connected to the pouring orifice by a tearable veil with low resistance.
• the plugging element comprises a skirt capable of cooperating by interlocking with said orifice.
• the cover is permanently connected to the skirt of the closure element.
• the stopper pourer according to the invention as a whole is made in one piece by plastic molding, in the open state, that is to say the pouring body and the stopper element being arranged at flat, in one plane.
• the closure pourer is brought into the closed position, that is to say the closure element is pivotally brought about around the hinge on the pouring body, the skirt of the element plug being fitted into the pouring orifice of the pouring body.
• the cover which seals the pouring orifice of the pouring co ⁇ s is connected by welding, bonding or by any other means to the skirt of the plugging element, and remains permanently integral with this skirt. Consequently, when the plugging element is opened for the first time, the web connecting the cover to the pouring orifice is torn and the cover, which then no longer has any function, remains attached to the capping.
• the pouring orifice can be defined in the pouring element by an interlocking chimney for the skirt of the plugging element, chimney the upper part of which is shaped as a pouring edge and which comprises the cover at its part. lower.
• This chimney which can protrude inside the packaging container, makes it possible to obtain, on a plugging pourer not projecting upwards except at a very low height, the top wall of the container, a significant nesting depth for the skirt of the plugging element, therefore good sealing after filling.
• the skirt of the plugging element is closed by a bottom, which gives the plugging member a cup shape, and the cover is fixed to said bottom of the skirt.
• the pouring body may advantageously also comprise a ventilation orifice situated between the pouring orifice and the hinge and the plugging element may comprise, between the skirt cooperating with the pouring orifice and the hinge, an additional skirt cooperating by interlocking with the ventilation opening.
• the ventilation orifice which is advantageously also defined by a chimney can also be closed by a cover connected by a tearable veil of small thickness to the ventilation orifice and fixed to remains at the additional skirt of the closure element.
• the cover of the ventilation orifice is also torn off automatically when the closure element is opened for the first time.
• the pouring container preferably comprises on its inner face a flange or skirt which surrounds the pouring orifice, which penetrates into the pouring hole of the top wall of the container and which is used for fixing the pouring cost to the container by crimping and welding this flange on the internal face of the top wall of the container, around the pouring hole.
• this skirt or collar has an internal diameter greater than the diameter of the pouring orifice, which facilitates crimping and welding.
• the pouring co ⁇ s can also advantageously include on its underside a skirt or flange which surrounds the ventilation orifice, which is fitted into a ventilation hole drilled in the top wall of the container and which is fixed to this wall by crimping and welding on the inside of the wall.
• the stopper pourer according to the invention may advantageously comprise at least one tab integral with the stopper element and welded to the pouring co ,s, this tab being broken at the time of first opening of the plugging element.
• these legs are two in number and are arranged laterally in the opposite position.
• Figure 1 is a section of a stopper pourer after molding, before fixing the cover sealing the pouring orifice to the skirt of the stopper element;
• Figure 2 is a section of the pourer after fitting the skirt of the plugging element in the pouring orifice and fixing the cover to the skirt;
• Figure 3 is a top view of the pourer according to Figure 2;
• Figure 4 is a section of the pourer attached to the container, after the first opening;
• Figure 5 is a section similar to that of Figure 2, showing another embodiment of the pourer.
• the pourer is a pourer made of a single piece of plastic, this pourer being intended for containers for liquids, more particularly cardboard-aluminum-plastic composite boxes for the packaging of food drinks such as milk, wine, fruit juice, etc. .
• the pourer comprises a pouring element 1 intended to be fixed to the container, and a closure element 2 articulated on the pouring element 1 by a zone 3 of small thickness forming a hinge.
• the pouring element 1 comprises a base 4 of generally flat shape provided, opposite the hinge 3, with a through cylindrical chimney 5 delimiting a pouring orifice 6.
• the upper end of the chimney 5, located above of the base 4, is shaped as a pouring edge 7, while the lower end of the chimney 5, located below the base 4, is closed by a cover 8 connected to the lower end of the chimney 5 by a tearable annular veil 9, of small thickness.
• the base 4 On its underside, the base 4 has, around the chimney 5, a cylindrical skirt or flange 10.
• the base 4 also comprises a second cylindrical chimney 11 projecting upwards and defining a ventilation orifice 12, as well as a second skirt or flange 13 projecting downwards.
• the diameter of the ventilation orifice 12 is much smaller than the diameter of the pouring orifice 6.
• the plugging element 2 comprises a base 15 of generally flat shape on which protrude downwards a first plugging part 16 in the form of a cup, formed by a skirt 17 and a bottom.
• the plugging element 2 comprises a gripping tab 22.
• the stopper pourer as a whole is molded in a single piece of plastic, in the open position, the pourer co ⁇ s 1 and the stopper element 2 being in the same plane.
• the plugging element 2 is folded around the hinge 3 on the pouring shell 1, the part 16 being fitted into the chimney 5 and part 19 in the chimney 11.
• the cover 8 is fixed by welding, gluing or in a similar manner permanently to the bottom 18 of part 16.
• two lateral tamper-evident tabs 23 are molded in one piece with the plugging element 2 and welded to the base 4 of the pouring shell 1, these tabs being connected to the plugging element 2 by tear-off zones 24, of small thickness.
• the stopper pourer is fixed to the container by its pourer co ⁇ s 1.
• the top wall 25 of the container is provided with a first hole 26 of large section and a second hole 27 small section.
• the closed pourer is placed on the upper face of the top wall 25 of the container so that the skirt 10 of the pouring co 1s 1 enters the hole 26 and that the skirt 13 of the pouring co 1s 1 enters the hole 27.
• crimps the skirts 10 and 13 outwards and they are welded, as also indicated in thin lines, against the internal face of the top wall 25, that is to say the side of the wall 25 covered with plastic material .
• This ensures perfect attachment of the pouring spout 1 to the wall 25, the crimping and welding of the skirts 10 and 13 preventing any infiltration of liquid in the cardboard layer of the wall 25 at the location of the edge of the holes 26 and 27 .
• the plugging element 2 is raised by acting on the tab 22, to pivot the element 2 upwards around the hinge 3.
• This pivoting movement causes a rupture of the web 9 of the lid 8 fixed to the bottom 18 of the portion 16 in the form of a bucket, while this portion 16 emerges from the skirt 5 thus releasing the pouring orifice 6, and that the portion 19 in the form of a bucket emerges from the skirt 11 , thereby freeing the ventilation opening 12 (see Figure 4).
• This first opening also causes the connection zones 24 of the tabs 23 on the closure element 2 to rupture, this rupture being clearly visible and thus indicating irreversibly that the pourer has been opened.
• the orifice 6 After payment of part of the contents of the container by the orifice 6, it is possible to recap the pourer by pivoting the plugging element 2 around the hinge 3 on the pouring shell 1, the part 16 fitting into the chimney 5 and the part 19 into the chimney 11
• the two openings 6 and 12 are thus closed in a perfectly sealed manner by the two parts 16 and 19, thanks to the deep interlocking of these parts 16 and 19 in the chimneys 5 and 11.
• the variant according to FIG. 5 differs from the variant according to FIGS. 1 to 4 by the fact that the ventilation orifice 12 defined by the chimney 11 is also closed, before the first opening of the pourer, by a cover 28 which is fixed by welding, bonding or the like at the bottom 21 of the cup-shaped part 19 and is connected to the skirt 11 by a thin web 29 which breaks at the first opening, in a similar way to what has been described for the cover 18 closing the pouring orifice 6 until the first opening.
• the embodiments shown and described have been given only by way of illustrative and nonlimiting examples and that numerous modifications and variants are possible within the scope of the invention.
• the pouring orifice 6 it is possible to give the pouring orifice 6 not a circular shape, but an elongated shape in the grip tab 22-hinge 3 direction, and in this case to remove the ventilation orifice 19, the part of the orifice 6 closer to the hinge 3 making this case a ventilation function.
• the plugging part 16 must in this case have a shape adapted to that of the pouring orifice 6.
• the hinge 3 instead of being constituted simply by a thin connecting part, could also for example be produced in the manner of a bistable hinge, of the type known per se.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Closures For Containers (AREA)
• Cartons (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=9482378

Family Applications (1)

Country Status (8)

Families Citing this family (15)

Family Cites Families (3)

• 1995
  • 1995-09-08 FR FR9510539A patent/FR2738552B1/fr not_active Expired - Fee Related
• 1996
  • 1996-08-20 AU AU68783/96A patent/AU6878396A/en not_active Abandoned
  • 1996-08-20 EP EP96929351A patent/EP0961732B1/de not_active Expired - Lifetime
  • 1996-08-20 ES ES96929351T patent/ES2201195T3/es not_active Expired - Lifetime
  • 1996-08-20 AT AT96929351T patent/ATE245571T1/de not_active IP Right Cessation
  • 1996-08-20 DE DE69629217T patent/DE69629217T2/de not_active Expired - Fee Related
  • 1996-08-20 CA CA002231168A patent/CA2231168A1/fr not_active Abandoned
  • 1996-08-20 WO PCT/FR1996/001299 patent/WO1997009238A1/fr active IP Right Grant

Non-Patent Citations (1)

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