WO1999026848A1 - Drum-like box for receiving a locking wedge for fixing a heat shrinkable film - Google Patents

Drum-like box for receiving a locking wedge for fixing a heat shrinkable film Download PDF

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Publication number
WO1999026848A1
WO1999026848A1 PCT/FR1998/002527 FR9802527W WO9926848A1 WO 1999026848 A1 WO1999026848 A1 WO 1999026848A1 FR 9802527 W FR9802527 W FR 9802527W WO 9926848 A1 WO9926848 A1 WO 9926848A1
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WO
WIPO (PCT)
Prior art keywords
panels
wedge
belt
panel
film
Prior art date
Application number
PCT/FR1998/002527
Other languages
French (fr)
Inventor
Jean-Claude Serre
Original Assignee
Serre Jean Claude
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 Serre Jean Claude filed Critical Serre Jean Claude
Priority to AU13401/99A priority Critical patent/AU1340199A/en
Publication of WO1999026848A1 publication Critical patent/WO1999026848A1/en

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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
    • B65D5/02—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 by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/12—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 by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end closures formed separately from tubular body
    • 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
    • B65D5/44—Integral, inserted or attached portions forming internal or external fittings
    • B65D5/50—Internal supporting or protecting elements for contents
    • B65D5/5028—Elements formed separately from the container body

Definitions

  • the present invention relates to a drum box made of cardboard or similar material, provided with a film of heat-shrinkable plastic material fixed to one inside the box and the end portions of which are intended to be folded over objects lying on the bottom. of the box and to be retracted on these objects to hold them firmly during the transport of the box.
  • the drum boxes currently used have a prismatic belt consisting of vertical side panels, adjoining each other, and at least one closure cap whose outline has the same shape as the horizontal polygonal section of the belt and is extended by folded flaps. perpendicularly upwards to be glued to the lower parts of the outer surfaces of the belt panels, thus forming a package closed by a bottom formed by the lower cover.
  • the present invention relates to improvements made to this type of box with a view to facilitating the fixing of a film of heat-shrinkable plastic material on its bottom, simply by a locking operation with mechanical latching and without the need for bonding.
  • this cardboard or similar drum crate provided with a film of heat-shrinkable plastic material, fixed inside the crate and the end portions of which are intended to be folded down on objects lying on the bottom of the body, to be welded more retracted on these objects and hold them firmly during the transport of the body, comprising a belt made up of at least four panels adjoining each other and folded back on itself so that these panels are distributed preferably by pair of opposite parallel panels forming a straight prism, and at least one cover with lateral flaps, perpendicular to its central part, these flaps being glued to the lower parts of the panels to form the bottom of the body, is characterized in that each of two opposite parallel panels has, in its lower edge, at least one notch with a bottom parallel to the edge, and in that a flat and rigid element, constituting a film locking wedge, has , along two opposite parallel edges located at a distance from each other, substantially equal to the distance between the two opposite panels of the belt, at least one tooth of the same shape as the
  • - Figure 1 is an exploded perspective view of the components of a drum body according to the invention
  • - Figure 2 is a vertical and longitudinal sectional view of a lower part of the body located at a longitudinal end of this one.
  • FIG. 3 is a partial vertical and cross-sectional view taken along line III-III of FIG. 2,
  • FIG. 4 is a partial vertical and cross-sectional view taken along line IV-IV of FIG. 2,
  • FIG. 5 is a developed plan view of a cutout of a belt used in the drum box according to the invention.
  • FIG. 6 is a plan view of a film locking wedge used with the belt shown in Figure 5,
  • FIG. 7 is a vertical and transverse sectional view of a drum box containing objects held firmly by the shrunk film.
  • the drum body according to the invention which is shown by way of example in exploded perspective in FIG. 1, is made up of four main elements, namely a prismatic belt 1, a lower cover 2, a film of heat-shrinkable plastic 3 shown in mixed line, and a film locking wedge 4.
  • the belt 1 has a horizontal section of rectangular shape, the same shape as the cap 2, but these elements could have the shape of any other regular polygon.
  • the belt 1 therefore consists of four panels adjoining each other, of the same width, cut from a strip of rigid cardboard and adjoining each other by means of fold lines 5 (FIG. 5).
  • the cutout constituting the belt 1 thus successively comprises a first small panel 6, a first large panel 7, a second small panel 8 of the same dimensions as the first small panel 6, a second large panel 9 of the same dimension as the first large panel 7 and a fixing lug 10 connected to the second large panel 9 by a transverse fold line 5.
  • the belt 1 which is formed from the strip shown in FIG. 5, thus constitutes a straight prism with rectangular horizontal section comprising two small panels 6.8 and two large longitudinal panels 7.9.
  • the cover 2 which is intended to close the lower opening of the belt 1 and to constitute the bottom of the drum body, comprises a central rectangular bottom 11 and transverse 12 and longitudinal 13 flaps extending perpendicularly upwards from the respective sides of the bottom 11.
  • the flaps 12, 13 of the cover 2 are intended to be glued to the lower parts of the external surfaces of the panels 6-9 of the belt 1, to fix the cover 2 to this belt.
  • the drum box comprises the locking wedge 4 which cooperates with the lower edges of the longitudinal panels 7, 9 of the belt 1 to fix, on the bottom 11 of the cover 2, the film 3 of heat-shrinkable plastic.
  • this film is extended, in the transverse direction, over the upper edges of the two opposite longitudinal panels 7, 9 of the belt 1, the central part of the film 3 is pressed into the belt 1, until 'to be applied to the bottom 11 of the cover 2 and this film is locked in position by means of the locking wedge 4 which is pressed in turn and assembled by mechanical snap-on with the two side panels 7.9.
  • each longitudinal panel 7, 9 is cut so as to present, at least in its central part, at least one notch 14, the bottom of which extends parallel to the lower edge of the panel and whose depth is substantially equal to the thickness of the locking wedge 4.
  • This notch 14 delimits, with the adjacent parts of the panel, teeth 15 which are thus projecting from the notch 14.
  • each longitudinal panel 7,9 has, along its lower edge, a succession of notches 14 and teeth 15 alternating, which is symmetrical with respect to the transverse perpendicular 16 of each panel.
  • the locking wedge 4 has longitudinal edges which have successions of notches 17 and teeth 18 which are complementary to the successions of notches and teeth of the panels 7, 9.
  • each notch 17 of an edge of the locking wedge 4 has a shape corresponding to that of a tooth 15 of the edge of the associated panel and each tooth 18 of the wedge 4 has a shape corresponding to that of a notch 14 from the edge of the panel.
  • FIG. 3 shows the engagement of a tooth 18 of the cap 4 in a notch 14 of the panel 9 and it can be seen in this figure that the heat-shrinkable film 3 is wedged in the notch 14. It is also seen in this figure that the height of tooth 18 corresponds substantially to the thickness of panel 9 so that this tooth 18 does not protrude outward relative to the external surface of panel 9. It can also be seen that the depth of the notch 14 corresponds substantially to the thickness of the locking wedge 4, to ensure good wedging of the film 3.
  • FIG. 4 illustrates the engagement, in the vertical direction, of a tooth 15 of the panel 9 in a notch 17 of the wedge of lock 4.
  • FIG. 6 represents the assembly of the locking cap 4 and it can be seen in this figure that each of its longitudinal edges has a succession of teeth 18 and notches 17, each of these successions of teeth and notches being symmetrical by relative to the transverse perpendicular bisector 19 of the locking cap 4.
  • FIG. 7 is a sectional view of a drum box according to the invention in which the film 3 is shown shrunk on objects 20 contained in the box, the fixing of the film 3 to the bottom 11 of the cover 2 being obtained at by means of the locking wedge 4, as explained above. It is quite obvious that if this solution for fixing a shrink film to the walls of a drum box is particularly suitable for boxes whose section is a regular polygon, requiring no precaution for mounting the locking wedge (4), it is easily transposable to any other drum body without departing from the scope of the invention.

Abstract

The invention concerns a cardboard drum-like box provided inside with a heat-shrinkable plastic film (1) preferably forming a regular straight prism, and at least a cover (2) with lateral flaps (12, 13), bonded on the can-band carton lower parts to constitute the box base. The invention is characterised in that each of the two opposite parallel panels (7, 9) has, in its lower edge, at least a base indentation parallel to the edge, and a planar and rigid element, constituting a wedge (4) for locking the film (3), has, along the two opposite parallel edges spaced from each other by a distance substantially equal to the distance between the two opposite panels (7, 9) of the can-band carton (1), at least one tooth (18) shaped like the indentation (14) in the lower edge of each carton can-band (1) panel (7, 9) wherein it is engaged, to block the wedge (4) with respect to the can-band carton (1) and firmly lock the film (3) between the wedge (4) and the cover (2) base (11).

Description

CAISSE TAMBOUR ADAPTEE POUR RECEVOIR UNE CALE DE VERROUILLAGE POUR LA FIXATION D'UN FILM THERMORETRACTABLE DRUM BODY SUITABLE FOR RECEIVING A LOCKING HOLDER FOR FIXING A HEAT-SHRINKABLE FILM
La présente invention concerne une caisse tambour en carton ou matériau analogue, pourvue d'un film de matière plastique thermorétractable fixé à 1 ' intérieur de la caisse et dont les parties extrêmes sont destinées à être rabattues par-dessus des objets se trouvant sur le fond de la caisse et à être rétractées sur ces objets pour les maintenir fermement pendant le transport de la caisse.The present invention relates to a drum box made of cardboard or similar material, provided with a film of heat-shrinkable plastic material fixed to one inside the box and the end portions of which are intended to be folded over objects lying on the bottom. of the box and to be retracted on these objects to hold them firmly during the transport of the box.
Les caisses tambour utilisées actuellement comportent une ceinture prismatique constituée de panneaux latéraux verticaux, attenant les uns aux autres, et au moins une coiffe de fermeture dont le contour a la même forme que la section horizontale polygonale de la ceinture et est prolongé par des rabats repliés perpendiculairement vers le haut pour être collés sur les parties inférieures des surfaces externes des panneaux de la ceinture, en formant ainsi un emballage fermé par un fond constitué par la coiffe inférieure.The drum boxes currently used have a prismatic belt consisting of vertical side panels, adjoining each other, and at least one closure cap whose outline has the same shape as the horizontal polygonal section of the belt and is extended by folded flaps. perpendicularly upwards to be glued to the lower parts of the outer surfaces of the belt panels, thus forming a package closed by a bottom formed by the lower cover.
La présente invention concerne des perfectionnements apportés à ce type de caisse en vue de faciliter la fixation d'un film de matière plastique thermoretractable sur son fond, simplement par une opération de verrouillage à encliquetage mécanique et sans faire appel à un collage.The present invention relates to improvements made to this type of box with a view to facilitating the fixing of a film of heat-shrinkable plastic material on its bottom, simply by a locking operation with mechanical latching and without the need for bonding.
A cet effet, cette caisse tambour en carton ou matériau analogue, pourvue d'un film de matière plastique thermorétractable, fixé à l'intérieur de la caisse et dont les parties extrêmes sont destinées à être rabattues sur des objets se trouvant sur le fond de la caisse, pour être soudées plus rétractées sur ces objets et les maintenir fermement pendant le transport de la caisse, comprenant une ceinture constituée d'au moins quatre panneaux attenant les uns aux autres et repliée sur elle-même de manière que ces panneaux soient répartis préférentiellement par paire de panneaux parallèles opposés en formant un prisme droit, et au moins une coiffe à rabats latéraux, perpendiculaires à sa partie centrale, ces rabats étant collés sur les parties inférieures des panneaux pour constituer le fond de la caisse, est caractérisée en ce que chacun de deux panneaux parallèles opposés présente, dans son bord inférieur, au moins une encoche à fond parallèle au bord, et en ce qu'un élément plan et rigide, constituant une cale de verrouillage du film, présente, le long de deux bords parallèles opposés situés à une distance, l'un de l'autre, sensiblement égale à la distance entre les deux panneaux opposés de la ceinture, au moins une dent de même forme que l'encoche dans le bord inférieur de chaque panneau de la ceinture, chaque dent de la cale étant située, sur chaque bord de la cale de verrouillage, dans une position telle, que lorsque la cale de verrouillage est enfoncée dans la ceinture pour s'appliquer contre le fond de la coiffe, les dents de la cale de verrouillage s'engagent dans les encoches des bords inférieurs des panneaux de la ceinture en bloquant ainsi la cale par rapport à la ceinture et en immobilisant fermement le film thermorétractable entre la cale et le fond de la coiffe.For this purpose, this cardboard or similar drum crate, provided with a film of heat-shrinkable plastic material, fixed inside the crate and the end portions of which are intended to be folded down on objects lying on the bottom of the body, to be welded more retracted on these objects and hold them firmly during the transport of the body, comprising a belt made up of at least four panels adjoining each other and folded back on itself so that these panels are distributed preferably by pair of opposite parallel panels forming a straight prism, and at least one cover with lateral flaps, perpendicular to its central part, these flaps being glued to the lower parts of the panels to form the bottom of the body, is characterized in that each of two opposite parallel panels has, in its lower edge, at least one notch with a bottom parallel to the edge, and in that a flat and rigid element, constituting a film locking wedge, has , along two opposite parallel edges located at a distance from each other, substantially equal to the distance between the two opposite panels of the belt, at least one tooth of the same shape as the notch in the lower edge of each belt panel, each tooth of the wedge being located, on each edge of the locking wedge, in a position such that when the locking wedge is pressed into the belt to apply against the bottom of the cap , the teeth of the locking wedge engage in the notches of the lower edges of the belt panels, thereby blocking the wedge relative to the belt and firmly immobilizing the heat-shrinkable film between the wedge and the bottom of the cap.
On décrira ci-après, à titre d'exemple non limitatif, une forme d'exécution de la présente invention en référence aux dessins annexés sur lesquels :An embodiment of the present invention will be described below, by way of non-limiting example, with reference to the appended drawings in which:
- la figure 1 est une vue en perspective éclatée des éléments constitutifs d'une caisse tambour suivant 1 ' invention, - la figure 2 est une vue en coupe verticale et longitudinale d'une partie inférieure de la caisse se trouvant à une extrémité longitudinale de celle-ci.- Figure 1 is an exploded perspective view of the components of a drum body according to the invention, - Figure 2 is a vertical and longitudinal sectional view of a lower part of the body located at a longitudinal end of this one.
- la figure 3 est une vue en coupe verticale et transversale partielle faite suivant la ligne III-III de la figure 2,FIG. 3 is a partial vertical and cross-sectional view taken along line III-III of FIG. 2,
- la figure 4 est une vue en coupe verticale et transversale partielle faite suivant la ligne IV- IV de la figure 2,FIG. 4 is a partial vertical and cross-sectional view taken along line IV-IV of FIG. 2,
- la figure 5 est une vue en plan développée d'une découpe d'une ceinture utilisée dans la caisse tambour suivant l'invention.- Figure 5 is a developed plan view of a cutout of a belt used in the drum box according to the invention.
- la figure 6 est -une vue en plan d'une cale de verrouillage du film utilisée avec la ceinture représentée sur la figure 5,- Figure 6 is a plan view of a film locking wedge used with the belt shown in Figure 5,
- la figure 7 est une vue en coupe verticale et transversale d'une caisse tambour contenant des objets maintenus fermement par le film rétracté. La caisse tambour suivant 1 ' invention qui est représentée à titre d'exemple en perspective éclatée sur la figure 1, est constituée de quatre éléments principaux à savoir une ceinture prismatique 1, une coiffe inférieure 2, un film de matière plastique thermorétractable 3 représenté en trait mixte, et une cale 4 de verrouillage du film 3.- Figure 7 is a vertical and transverse sectional view of a drum box containing objects held firmly by the shrunk film. The drum body according to the invention which is shown by way of example in exploded perspective in FIG. 1, is made up of four main elements, namely a prismatic belt 1, a lower cover 2, a film of heat-shrinkable plastic 3 shown in mixed line, and a film locking wedge 4.
Dans la forme d'exécution non limitative de l'invention qui sera décrite, la ceinture 1 a une section horizontale de forme rectangulaire, de même forme que la coiffe 2, mais ces éléments pourraient avoir la forme d'un autre polygone régulier quelconque. La ceinture 1 est donc constituée de quatre panneaux attenants les uns aux autres, de même largeur, découpés dans une bande de carton rigide et attenant les uns aux autres par 1 ' intermédiaire de lignes de pliage 5 (figure 5) . La découpe constituant la ceinture 1 comprend ainsi successivement un premier petit panneau 6, un premier grand panneau 7, un second petit panneau 8 de mêmes dimensions que le premier petit panneau 6, un second grand panneau 9 de même dimension que le premier grand panneau 7 et une patte de fixation 10 reliée au second grand panneau 9 par une ligne de pliage transversale 5. La ceinture 1 qui est formée à partir de la bande représentée sur la figure 5, constitue ainsi un prisme droit à section horizontale rectangulaire comportant deux petits panneaux transversaux 6,8 et deux grands panneaux longitudinaux 7,9.In the nonlimiting embodiment of the invention which will be described, the belt 1 has a horizontal section of rectangular shape, the same shape as the cap 2, but these elements could have the shape of any other regular polygon. The belt 1 therefore consists of four panels adjoining each other, of the same width, cut from a strip of rigid cardboard and adjoining each other by means of fold lines 5 (FIG. 5). The cutout constituting the belt 1 thus successively comprises a first small panel 6, a first large panel 7, a second small panel 8 of the same dimensions as the first small panel 6, a second large panel 9 of the same dimension as the first large panel 7 and a fixing lug 10 connected to the second large panel 9 by a transverse fold line 5. The belt 1 which is formed from the strip shown in FIG. 5, thus constitutes a straight prism with rectangular horizontal section comprising two small panels 6.8 and two large longitudinal panels 7.9.
La coiffe 2 qui est destinée à fermer l'ouverture inférieure de la ceinture 1 et à constituer le fond de la caisse tambour, comprend un fond central rectangulaire 11 et des rabats transversaux 12 et longitudinaux 13 s 'étendant perpendiculairement vers le haut à partir des côtés respectifs du fond 11. Les rabats 12,13 de la coiffe 2 sont destinés à être collés sur les parties inférieures des surfaces externes des panneaux 6-9 de la ceinture 1, pour fixer la coiffe 2 à cette ceinture.The cover 2 which is intended to close the lower opening of the belt 1 and to constitute the bottom of the drum body, comprises a central rectangular bottom 11 and transverse 12 and longitudinal 13 flaps extending perpendicularly upwards from the respective sides of the bottom 11. The flaps 12, 13 of the cover 2 are intended to be glued to the lower parts of the external surfaces of the panels 6-9 of the belt 1, to fix the cover 2 to this belt.
Suivant la présente invention, la caisse tambour comporte la cale de verrouillage 4 qui coopère avec les bords inférieurs des panneaux longitudinaux 7,9 de la ceinture 1 pour fixer, sur le fond 11 de la coiffe 2, le film 3 en matière plastique thermorétractable. Pour la fixation du film 3, on étend ce film, dans le sens transversal, par-dessus les bords supérieurs des deux panneaux longitudinaux opposés 7,9 de la ceinture 1, on enfonce la partie centrale du film 3 dans la ceinture 1, jusqu'à ce qu'il soit appliqué sur le fond 11 de la coiffe 2 et on bloque ce film en position au moyen de la cale de verrouillage 4 que l'on enfonce à son tour et que l'on assemble par encliquetage mécanique avec les deux panneaux latéraux 7,9. Pour assurer cet encliquetage mécanique, le bord inférieur de chaque panneau longitudinal 7,9 est découpé de manière à présenter, au moins dans sa partie centrale, au moins une encoche 14 dont le fond s'étend parallèlement au bord inférieur du panneau et dont la profondeur est sensiblement égale à l'épaisseur de la cale de verrouillage 4. Cette encoche 14 délimite, avec les parties adjacentes du panneau, des dents 15 qui se trouvent ainsi être en saillie par rapport à l'encoche 14. De préférence, comme il est représenté sur les figures 1 et 5, chaque panneau longitudinal 7,9 présente, le long de son bord inférieur, une succession d'encoches 14 et de dents 15 alternées, qui est symétrique par rapport à la médiatrice transversale 16 de chaque panneau.According to the present invention, the drum box comprises the locking wedge 4 which cooperates with the lower edges of the longitudinal panels 7, 9 of the belt 1 to fix, on the bottom 11 of the cover 2, the film 3 of heat-shrinkable plastic. For fixing the film 3, this film is extended, in the transverse direction, over the upper edges of the two opposite longitudinal panels 7, 9 of the belt 1, the central part of the film 3 is pressed into the belt 1, until 'to be applied to the bottom 11 of the cover 2 and this film is locked in position by means of the locking wedge 4 which is pressed in turn and assembled by mechanical snap-on with the two side panels 7.9. To ensure this mechanical snap-fastening, the lower edge of each longitudinal panel 7, 9 is cut so as to present, at least in its central part, at least one notch 14, the bottom of which extends parallel to the lower edge of the panel and whose depth is substantially equal to the thickness of the locking wedge 4. This notch 14 delimits, with the adjacent parts of the panel, teeth 15 which are thus projecting from the notch 14. Preferably, as it is shown in Figures 1 and 5, each longitudinal panel 7,9 has, along its lower edge, a succession of notches 14 and teeth 15 alternating, which is symmetrical with respect to the transverse perpendicular 16 of each panel.
De son côté, la cale de verrouillage 4 a des bords longitudinaux qui présentent des successions d'encoches 17 et de dents 18 qui sont complémentaires des successions d'encoches et de dents des panneaux 7,9. Autrement dit, chaque encoche 17 d'un bord de la cale de verrouillage 4 a une forme correspondant à celle d'une dent 15 du bord du panneau associé et chaque dent 18 de la cale 4 a une forme correspondant à celle d'une encoche 14 du bord du panneau. Par conséquent, lorsque l'on enfonce à force la cale de verrouillage 4 en la pressant vers le fond 11 de la coiffe 2, avec le film 3 s ' étendant entre eux, on bloque finalement le film 3 sur le fond 11 de la coiffe 2 par suite de l'engagement des dents 18 de la cale 4 dans les encoches 14 des panneaux 7,9. La figure 3 montre l'engagement d'une dent 18 de la coiffe 4 dans une encoche 14 du panneau 9 et on voit sur cette figure que le film thermorétractable 3 est coincé dans l'encoche 14. On voit également sur cette figure que la hauteur de la dent 18 correspond sensiblement à l'épaisseur du panneau 9 si bien que cette dent 18 ne fait pas saillie vers l'extérieur par rapport à la surface externe du panneau 9. On voit également que la profondeur de l'encoche 14 correspond sensiblement à l'épaisseur de la cale de verrouillage 4, pour assurer un bon coincement du film 3. La figure 4 illustre l'engagement, dans le sens vertical, d'une dent 15 du panneau 9 dans une encoche 17 de la cale de verrouillage 4.For its part, the locking wedge 4 has longitudinal edges which have successions of notches 17 and teeth 18 which are complementary to the successions of notches and teeth of the panels 7, 9. In other words, each notch 17 of an edge of the locking wedge 4 has a shape corresponding to that of a tooth 15 of the edge of the associated panel and each tooth 18 of the wedge 4 has a shape corresponding to that of a notch 14 from the edge of the panel. Consequently, when the locking wedge 4 is forced in by pressing it towards the bottom 11 of the cap 2, with the film 3 extending between them, the film 3 is finally blocked on the bottom 11 of the cap 2 as a result of the engagement of the teeth 18 of the wedge 4 in the notches 14 of the panels 7, 9. FIG. 3 shows the engagement of a tooth 18 of the cap 4 in a notch 14 of the panel 9 and it can be seen in this figure that the heat-shrinkable film 3 is wedged in the notch 14. It is also seen in this figure that the height of tooth 18 corresponds substantially to the thickness of panel 9 so that this tooth 18 does not protrude outward relative to the external surface of panel 9. It can also be seen that the depth of the notch 14 corresponds substantially to the thickness of the locking wedge 4, to ensure good wedging of the film 3. FIG. 4 illustrates the engagement, in the vertical direction, of a tooth 15 of the panel 9 in a notch 17 of the wedge of lock 4.
La figure 6 représente l'ensemble de la coiffe de verrouillage 4 et on voit sur cette figure que chacun de ses bords longitudinaux présente une succession de dents 18 et d'encoches 17, chacune de ces successions de dents et d'encoches étant symétrique par rapport à la médiatrice transversale 19 de la coiffe de verrouillage 4.FIG. 6 represents the assembly of the locking cap 4 and it can be seen in this figure that each of its longitudinal edges has a succession of teeth 18 and notches 17, each of these successions of teeth and notches being symmetrical by relative to the transverse perpendicular bisector 19 of the locking cap 4.
La figure 7 est une vue en coupe d'une caisse tambour suivant l'invention dans laquelle le film 3 est représenté rétracté sur des objets 20 contenus dans la caisse, la fixation du film 3 sur le fond 11 de la coiffe 2 étant obtenu au moyen de la cale de verrouillage 4, comme il a été expliqué précédemment. II est bien évident que si cette solution pour fixer un film rétractable aux parois d'une caisse tambour est particulièrement adaptée aux caisses dont la section est un polygone régulier, ne nécessitant aucune précaution pour le montage de la cale de verrouillage (4) , elle est aisément transposable à n'importe quelle autre caisse tambour sans sortir du cadre de l'invention. FIG. 7 is a sectional view of a drum box according to the invention in which the film 3 is shown shrunk on objects 20 contained in the box, the fixing of the film 3 to the bottom 11 of the cover 2 being obtained at by means of the locking wedge 4, as explained above. It is quite obvious that if this solution for fixing a shrink film to the walls of a drum box is particularly suitable for boxes whose section is a regular polygon, requiring no precaution for mounting the locking wedge (4), it is easily transposable to any other drum body without departing from the scope of the invention.

Claims

REVENDICATIONS
1 - Caisse tambour en carton ou matériau analogue, pourvue d'un film (3) de matière plastique thermorétractable, fixé à l'intérieur de la caisse et dont les parties extrêmes sont destinées à être rabattues sur des objets se trouvant sur le fond de la caisse, pour être rétractées sur ces objets et les maintenir fermement pendant le transport de la caisse, comprenant une ceinture (1) constituée d'au moins quatre panneaux (6-9) attenant les uns aux autres et repliée sur elle-même de manière que ces panneaux (6-9) soient répartis préférentiellement par paire de panneaux parallèles opposés en formant un prisme droit, et au moins une coiffe (2) à rabats latéraux (12,13) perpendiculaires à sa partie centrale (11), ces rabats (12,13) étant collés sur les parties inférieures des panneaux (6-9) pour constituer le fond de la caisse, caractérisée en ce que chacun de deux panneaux parallèles opposés (7,9) présente, dans son bord inférieur, au moins une encoche à fond parallèle au bord, et en ce qu'un élément plan et rigide, constituant une cale (4) de verrouillage du film (3) , présente, le long de deux bords parallèles opposés situés à une distance, l'un de l'autre, sensiblement égale à la distance entre les deux panneaux opposés (7,9) de la ceinture (1), au moins une dent (18) de même forme que l'encoche (14) dans le bord inférieur de chaque panneau (7,9) de la ceinture (1), chaque dent (18) de la cale (4) étant située, sur chaque bord de la cale de verrouillage (14) , dans une position telle, que lorsque la cale de verrouillage (4) est enfoncée dans la ceinture (1) pour s'appliquer contre le fond (11) de la coiffe (2) , les dents (18) de la cale de verrouillage (14) s'engagent dans les encoches (14) des bords inférieurs des panneaux (7,9) de la ceinture (1) en bloquant ainsi la cale (4) par rapport à la ceinture (1) et en immobilisant fermement le film thermorétractable (3) entre la cale (4) et le fond (11) de la coiffe (2) .1 - Drum box made of cardboard or similar material, provided with a film (3) of heat-shrinkable plastic, fixed inside the box and the end portions of which are intended to be folded down on objects lying on the bottom of the body, to be retracted on these objects and hold them firmly during the transport of the body, comprising a belt (1) consisting of at least four panels (6-9) attached to each other and folded back on itself so that these panels (6-9) are preferably distributed in pairs of opposite parallel panels forming a straight prism, and at least one cover (2) with lateral flaps (12,13) perpendicular to its central part (11), these flaps (12,13) being glued to the lower parts of the panels (6-9) to form the bottom of the body, characterized in that each of two opposite parallel panels (7,9) has, in its lower edge, at the minus a notch at f is parallel to the edge, and in that a flat and rigid element, constituting a wedge (4) for locking the film (3), has, along two opposite parallel edges situated at a distance, one of the other, substantially equal to the distance between the two opposite panels (7,9) of the belt (1), at least one tooth (18) of the same shape as the notch (14) in the lower edge of each panel (7 , 9) of the belt (1), each tooth (18) of the wedge (4) being located, on each edge of the locking wedge (14), in a position such that when the locking wedge (4) is pressed into the belt (1) to press against the bottom (11) of the cap (2), the teeth (18) of the locking wedge (14) engage in the notches (14) of the lower edges panels (7, 9) of the belt (1) thereby blocking the shim (4) relative to the belt (1) and firmly immobilizing the heat-shrinkable film (3) between the shim (4) and the bottom (11 ) of the cap (2 ).
2 - Caisse suivant la revendication 1 caractérisée en ce que le bord inférieur de chaque panneau de la paire de panneaux parallèles (7,9) de la ceinture (1) présente une succession d'encoches (14) délimitant entre elles des dents (15) et la cale (4) de verrouillage du film comporte, le long de ses deux bords, une succession complémentaire de dents (18) et d'encoches (17) dont les formes, les dimensions et les positions sont choisies de manière que chaque dent (18) de la cale (4) puissent s'engager étroitement, dans le sens horizontal, dans une encoche en regard (14) d'un panneau (7,9) et que chaque dent (15) d'un bord inférieur d'un panneau (7,9) puisse s'engager étroitement, dans le sens vertical, dans une encoche (17) de la cale de verrouillage (4) .2 - Box according to claim 1 characterized in that the lower edge of each panel of the pair of parallel panels (7, 9) of the belt (1) has a succession of notches (14) delimiting between them teeth (15) and the wedge (4) for locking the film comprises, along its two edges, a complementary succession of teeth (18) and notches (17) whose shapes, dimensions and positions are chosen so that each tooth (18) of the wedge (4) can engage closely, in the horizontal direction, in a notch opposite (14) of a panel (7,9) and that each tooth (15) of a lower edge of a panel (7,9) can engage closely, in the vertical direction, in a notch (17) in the locking wedge (4).
3 - Caisse suivant la revendication 2 caractérisée en ce que la profondeur de chaque encoche (14) et la hauteur de chaque dent (15) d'un bord inférieur d'un panneau (7,9) de la ceinture (1) sont sensiblement égales à l'épaisseur de la cale (4) .3 - Box according to claim 2 characterized in that the depth of each notch (14) and the height of each tooth (15) of a lower edge of a panel (7,9) of the belt (1) are substantially equal to the thickness of the shim (4).
4 - Caisse suivant l'une quelconque des revendications 2 et 3 caractérisée en ce que la profondeur de chaque encoche (17) et la hauteur de chaque dent (18) de la cale de verrouillage (4) sont sensiblement égales à l'épaisseur d'un panneau (7,9).4 - Box according to any one of claims 2 and 3 characterized in that the depth of each notch (17) and the height of each tooth (18) of the locking wedge (4) are substantially equal to the thickness d 'a panel (7,9).
5 - Caisse suivant l'une quelconque des revendications 2 à 4 caractérisée en ce que les successions des encoches (14,17) et des dents (15,18) des panneaux (7,9) et de la cale de verrouillage (4) sont respectivement symétriques par rapport aux médiatrices transversales (16,19) des panneaux (7,9) et de la cale de verrouillage (4) . 5 - Box according to any one of claims 2 to 4 characterized in that the successions of the notches (14,17) and the teeth (15,18) of the panels (7,9) and of the locking wedge (4) are respectively symmetrical with respect to the transverse perpendicular bisectors (16,19) of the panels (7,9) and of the locking wedge (4).
PCT/FR1998/002527 1997-11-25 1998-11-25 Drum-like box for receiving a locking wedge for fixing a heat shrinkable film WO1999026848A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU13401/99A AU1340199A (en) 1997-11-25 1998-11-25 Drum-like box for receiving a locking wedge for fixing a heat shrinkable film

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR97/14766 1997-11-25
FR9714766A FR2771380B1 (en) 1997-11-25 1997-11-25 DRUM BODY SUITABLE FOR RECEIVING A LOCKING HOLDER FOR FIXING A HEAT-SHRINKABLE FILM

Publications (1)

Publication Number Publication Date
WO1999026848A1 true WO1999026848A1 (en) 1999-06-03

Family

ID=9513745

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1998/002527 WO1999026848A1 (en) 1997-11-25 1998-11-25 Drum-like box for receiving a locking wedge for fixing a heat shrinkable film

Country Status (3)

Country Link
AU (1) AU1340199A (en)
FR (1) FR2771380B1 (en)
WO (1) WO1999026848A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6206194B1 (en) 1998-06-10 2001-03-27 Motion Design, Inc. Boxes with internal resilient elements and insert therefor
US6158589A (en) * 1999-09-23 2000-12-12 Motion Design, Inc. Boxes with internal resilient elements
US6311843B1 (en) 1999-10-01 2001-11-06 Motion Design, Inc. Packaging boxes and components with internal resilient elements

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2016863A (en) * 1932-12-27 1935-10-08 Nat Folding Box Co Container
DE1908320A1 (en) * 1968-02-23 1969-09-18 Weyerhaeuse Comp Stackable containers
DE8115943U1 (en) * 1981-05-29 1981-08-20 Vereinigte Papierwerke Schickedanz & Co, 8500 Nürnberg Kit for building a packaging
US4328896A (en) * 1976-11-25 1982-05-11 Avon Products, Inc. Wrapping material and method of forming wrapped package
FR2604654A1 (en) * 1986-10-02 1988-04-08 Savoye Henry Machine for manufacting packaging for products under retractable (retractile) sheets

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2016863A (en) * 1932-12-27 1935-10-08 Nat Folding Box Co Container
DE1908320A1 (en) * 1968-02-23 1969-09-18 Weyerhaeuse Comp Stackable containers
US4328896A (en) * 1976-11-25 1982-05-11 Avon Products, Inc. Wrapping material and method of forming wrapped package
DE8115943U1 (en) * 1981-05-29 1981-08-20 Vereinigte Papierwerke Schickedanz & Co, 8500 Nürnberg Kit for building a packaging
FR2604654A1 (en) * 1986-10-02 1988-04-08 Savoye Henry Machine for manufacting packaging for products under retractable (retractile) sheets

Also Published As

Publication number Publication date
FR2771380A1 (en) 1999-05-28
FR2771380B1 (en) 1999-12-31
AU1340199A (en) 1999-06-15

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