EP0876281A1 - Ensemble de decoupes, boite, procede et machine pour la fabrication de boite a partir d'un tel ensemble de decoupes - Google Patents
Ensemble de decoupes, boite, procede et machine pour la fabrication de boite a partir d'un tel ensemble de decoupesInfo
- Publication number
- EP0876281A1 EP0876281A1 EP97901131A EP97901131A EP0876281A1 EP 0876281 A1 EP0876281 A1 EP 0876281A1 EP 97901131 A EP97901131 A EP 97901131A EP 97901131 A EP97901131 A EP 97901131A EP 0876281 A1 EP0876281 A1 EP 0876281A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cut
- box
- flaps
- panel
- series
- 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.)
- Granted
Links
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
- B65D5/566—Linings made of relatively rigid sheet material, e.g. carton
-
- 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
- B31B2120/00—Construction of rigid or semi-rigid containers
- B31B2120/40—Construction of rigid or semi-rigid containers lined or internally reinforced
- B31B2120/408—Construction of rigid or semi-rigid containers lined or internally reinforced by folding a sheet or blank around an inner tubular liner
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S229/00—Envelopes, wrappers, and paperboard boxes
- Y10S229/93—Fold detail
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S229/00—Envelopes, wrappers, and paperboard boxes
- Y10S229/939—Container made of corrugated paper or corrugated paperboard
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S493/00—Manufacturing container or tube from paper; or other manufacturing from a sheet or web
- Y10S493/901—Rigid container
- Y10S493/906—Rigid container having multilayer wall
- Y10S493/907—Lined
Definitions
- the present invention relates to a set of blanks for the constitution of a type dv packaging box comprising at least two blanks of cardboard or corrugated sheet material, namely a first blank comprising a series of at least four main components terminated by a fixing tab, said main flaps being interconnected via first fold lines parallel to each other, directly or via intermediate flaps, and provided on one side with a first series of connected flaps to said series of main flaps by second fold lines perpendicular to said first fold lines, said series of flaps being able to form a wall belt for the box and a second cut comprising at least two panels connected together by a third line folding, namely a first panel and one or more second panels.
- It also relates to a box obtained with such a set of cutouts, as well as the method and the machine for the manufacture of such a box.
- the present invention overcomes these drawbacks.
- the invention proposes in particular a set of cutouts for the constitution of a packaging box of the type described above, characterized in that the second cutout is located astride at least one fold line of the first cutting, in that the first panel is fixed and / or centered on the first cutting, in that said or at least one of said second panels is fixed to said first blank by means arranged to allow the relative movement of said second panel (s) relative to the first blank during the formation of the box by simultaneous winding of said blanks beforehand joined together around a volume of determined dimensions, and in that the third fold line (s) of the second cut are provided and are placed with respect to the fold line (s) of the corresponding first cut, to allow said simultaneous winding by catching up the extra thicknesses of the cardboard sheets.
- the fold lines according to the invention are simple, that is to say suitable for forming an edge whose crest is unilinear.
- the means arranged to authorize the relative movement comprise a pre-cut portion in said second panel or in the shutter opposite screw, and an extending recess, and of complementary shape with said precut portion which is fixed in an irremovable manner to the flap of the first cut or to the second panel opposite, to allow the overtaking thicknesses to be taken up by sliding of said portion in the plane and in said recess during winding.
- precut portion means a frangible portion which only holds by a few attachment points with the rest of the flap and which is therefore easily teared off in the plane and / or perpendicular to the plane of said flap or panel.
- the means arranged to allow relative movement comprise means for slidingly securing the second panel in the plane relative to the first cut during winding;
- the securing means consist of cold glue, with progressive setting, for example points or lines of glue.
- progressive setting adhesive means an adhesive which remains pasty for a few seconds, for example 30 seconds, thereby allowing it to slide before final and irremovable joining between cuts.
- the first and second cuts are fixed to each other only by means of pre-cut, tear-away portions.
- the panels of the second cut are opposite the flaps of the first cut; the set of cuts comprises two second cuts;
- the second cut has a series of flaps connected to the panels by fourth fold lines perpendicular to the third fold lines;
- the first cut is provided with a second series of flaps located on the other side of the main flaps relative to the first series of flaps, connected to said flaps by fifth fold lines parallel to the second fold lines;
- the second cut comprises a series of at least three panels, one longitudinal edge of said series of panels is adjacent to the fifth fold lines and the first cut comprises opposite said series of panels, a longitudinal portion of smaller width, bounded on one longitudinal side by said fifth fold lines and precut on its other longitudinal side and on its two lateral sides;
- the second cut includes a central panel opposite a first main flap of the first cut, the upper longitudinal edge of which is located at a determined distance d. of the fifth fold line corresponding to said first flap, said central panel comprising on either side, opposite two second main flaps located on either side of said first flap, two secondary panels symmetrical with respect to said central panel, not fixed to the first cut, substantially in the form of a quarter of a circle, each terminated on the side opposite to said fifth line by a stud extending radially projecting outwards over a distance substantially equal to or less than d., said main flap being in turn cut out opposite its first and fifth fold lines;
- the second cutout comprises a fixing tab connected to the adjacent panel by a third fold line and extending along only part of the corresponding adjacent panel, facing a part of, or offset from, the fixing tab of the first cut;
- the second cut has a fixing tab connected to the adjacent panel by a third fold line and located on the side opposite to that of the fixing tab of the series of flaps of the
- one cut is in corrugated cardboard and the other is in flat cardboard;
- the first blank is located or arranged to be located outside of the second blank (s) when the box is formed;
- the first cut is located or arranged to be located inside one or the second cut when the box is formed.
- the invention also provides a box obtained with the set of cutouts as described above.
- Such a box is rigid, non-foldable except by destroying it. It also makes it possible to obtain a polygonal section packaging box, formed from at least two cutouts of material made of cardboard sheet or corrugated board, namely a first cutout comprising a series of at least four main components completed.
- said main flaps being interconnected via first fold lines parallel to each other, directly or via intermediate flaps, said series of flaps forming the walls of the box and being connected one side to a first series of flaps by second fold lines perpendicular to said first fold lines, said series of flaps forming the bottom of said box, and a second cut having at at least two panels linked together by a third fold line, namely a first panel and one or more second panels, said second cut forming a reinforcement or a cover for said box, characterized in that the first panel is fixed to the first cut-out, the second cut-out being located astride at least one fold line of the first cut-out, and in that the or at least one of said second panels is fixed to said first cut-out by means of means designed to allow the relative movement of the or of said second panels with respect to the first blank during the formation of the box, said box being formed by simultaneous winding of the blanks thus previously secured around a volume of determined dimensions, the third fold line (s) of the second blank being superimposed
- the second cutout has a pivoting portion towards the outside, in the upper part of a wall of the box forming a pouring spout.
- the second cut includes a series of upper edge panels adjacent to the upper edge of at least three adjacent walls of the box, suitable for forming an upper internal reinforcement, and the first cut comprises a portion of pivoting cover opposite, fitting onto said upper internal reinforcement of the box.
- the invention also provides a method for producing a packaging box of polygonal section of the type described above, characterized in that the second flat cut is fixed at least in part on the first flat cut in positioning the third fold line (s) of the second cut offset from the fold lines of the first cut to allow the extra thickness of the cardboard sheets to be taken up, and the box is formed by simultaneously winding the cutouts around the volume of dimensions determined, the first panel being held fixedly relative to the first cut and the second panel (s) sliding relative to the first cut during winding.
- the second cut is placed on the first cut by fixing at least one second panel on the first cut by securing means allowing the relative movement of the said second panel (s) relative to the first cut.
- the cutouts are fixed to each other at the level of the second panel or panels in a provisionally sliding manner, for example with cold setting glue.
- the invention also provides a machine for producing a packaging box of polygonal section of the type described above, characterized in that it comprises
- the volume of determined dimensions is a mandrel of polygonal section;
- the machine is arranged so that the volume of determined dimensions is constituted by the products to be packaged;
- the means for fixing by gluing the second panels of the second cut on the first cut comprise cold glue injectors with progressive setting;
- the machine comprises means for folding the tab of the second cut on the volume of determined dimensions, at the junction between the walls of the box, means for applying the flap of the first and second cuts facing each other on said tongue, means for pre-folding the tongue of the first cut around the third fold line of the tongue of the second cut and final application of said tongue on the wall opposite the box;
- each cut comprising a fixing tab situated on the same side of the series of respective flaps or panels, opposite one another, at the junction between the walls of the box, the fastening tab of the first cut being wider than the tab of the second cut so that it projects outwards from the latter
- said machine comprises means for pre-folding the two tabs together around the volume, means of application at the level of the tongue of the first cut, and means of application of the tongue of the second cut, for successive application of the two overlapping previously glued tabs, on the wall or walls facing the box .
- FIG. 2 is a sectional view of the box obtained with the set of cutouts in FIG. 1.
- FIGS. 2A, 2A 'and 2B, 2B' are sectional views, respectively of the second and first cutouts of Figure 1 taken in isolation, on the one hand shaped box and on the other developed to flat, showing the differences in width of the shutters or panels and the offsets between fold lines.
- Figure 3 is a perspective view of the box obtained with the assembly of Figure 1.
- FIG. 4 and 5 show a second embodiment respectively of a set of blanks according to the invention, and a box, in section, obtained with such an assembly.
- FIG. 6 and 7 show a third embodiment respectively of a set of blanks according to the invention, and a box, in perspective, obtained with such an assembly.
- FIG. 8 and 9 show a fourth embodiment respectively of a set of blanks according to the invention, and a box, in section, obtained with such an assembly.
- FIG. 10 and 11 show a fifth embodiment respectively of a set of blanks according to the invention, and a box obtained with such an assembly in perspective.
- FIG. 12 and 13 show a sixth embodiment respectively of a set of blanks according to the invention, and a box, in section, obtained with such an assembly.
- - Figures 14 and 15 show a seventh embodiment respectively of a set of blanks according to the invention, and a box, in section, obtained with such an assembly.
- - Figures 16 and 17 show an eighth embodiment respectively of a set of blanks according to the invention, and a box, in section, obtained with such an assembly.
- - Figures 18 and 19 show a ninth embodiment respectively of a set of blanks according to the invention, and a box, in section, obtained with such an assembly.
- FIG. 20 and 21 show a tenth embodiment respectively of a set of blanks according to the invention, and a box, in perspective, obtained with such an assembly.
- FIG. 22 and 23 show an eleventh embodiment respectively of a set of blanks according to the invention, and a box, in section, obtained with such an assembly.
- FIG. 24 and 25 show a twelfth embodiment respectively of a set of blanks according to the invention, and a box, in perspective, obtained with such an assembly.
- - Figures 26 and 27 show a thirteenth embodiment respectively of a set of blanks according to the invention, and a box, in perspective, obtained with such an assembly.
- - Figure 28 shows the four final stages of the manufacturing process of a box according to an embodiment of the invention.
- - Figure 29 shows the four final stages of the manufacturing process of a box according to another embodiment of the invention
- FIG. 30 is a schematic side view in elevation of a machine for manufacturing a set of blanks according to the invention.
- - Figure 31 is a schematic side elevation view of a first embodiment of a machine according to the invention.
- - Figure 32 is a schematic side view in elevation of a second embodiment of a machine according to the invention.
- Figures 1, l ', 2, 2', 2A, 2B, 2A ', 2B' and 3 show a set 1, or different elements of a set, of cutouts in sheets of double-sided corrugated cardboard, for example 2 mm thick.
- This assembly 1 comprises a first cut 2 in thin lines in FIG. 1 and a second cut 3 in more solid lines, superimposed on the first cut.
- the first cut comprises a series of four rectangular flaps 4, for example two large flaps arranged alternately with two small flaps, the flaps being connected together by first fold lines 5 parallel to each other and shown in thin dashed lines in the figure , the series of flaps 4 being suitable for forming the external walls 4 'of the rectangular box 1' with four sides (cf. FIGS. 2 and 3).
- the series of flaps 4 is provided on each side with flaps, namely a first series of rectangular flaps 6 connected to the series of flaps by second fold lines 7, and intended to form the closed bottom 6 '(see FIG. 3) of the box, two flaps of which come into contact with their outer edge, and a second series of flaps 8, identical to the flaps 6, connected to the adjacent flaps by fifth fold lines 9, and intended to form the cover 8 'of the box 1 '.
- the second blank 3 comprises four rectangular panels, substantially the same size as the corresponding flaps, namely a first central rectangular panel 10 and three secondary rectangular panels 11, 12 and 13, interconnected by third fold lines 14, namely two panels 12 and 13 connected on either side to the central panel 10 and an end panel 11 connected to the other side of the panel 12.
- the first panel 10 is centered and for example fixed immovably on a main flap 4 by gluing, for example with dots or lines (not shown) of hot glue called "Hot melt" in English language.
- FIGS. 2A, 2A ', 2B and 2B' show the respective dimensions or width between the fold lines of the cutouts 2 and 3.
- Li- L distance between the internal faces of two opposite walls opposite the first cutout of the box formed.
- Le 2 distance between the external faces of said walls of the first cut.
- li- L distance between the internal faces of the two other walls opposite the first cutout of the box formed.
- e x thickness of the first cut
- Li 2 distance between the internal faces of two facing walls of the second cutout of the box formed.
- Le 2 distance between the external faces of said walls of the second cut.
- li 2 distance between the internal faces of the two other walls opposite the second cutout of the box formed.
- 2 distance between the external faces of said walls of the second cut.
- e 2 thickness of the second cut.
- Li- L Li 2 + 2e 2
- the distances between the first or third fold lines are also indicated in FIGS. 2B 'and 2A', and are respectively
- the fold lines 14 of the first panel 10 are also placed at equal distance x. fold lines 5 of panel 4 (see figure l '). h ⁇ 1 + e 1 - ⁇ hx 1 - e 2 ) e ⁇ + e 2
- the panel 10 is therefore extended on each side by two second panels 12 and 13 covering the adjacent flaps 4, the series of panels being terminated by a last secondary panel 11 substantially coinciding with the last end flap 4 of the first cut.
- the other end flap 4 of the first cut is itself extended by a fixing tongue 15, the width P x of which is substantially equal to that of the part 21 not covered by the panel, of the flap 4 located at l 'other side
- each of the second panels is fixed to the first cut by gluing points or lines
- the first panel 10 is fixedly attached to the shutter opposite the first cut. What matters here is that the first panel and the corresponding flap are held immobile against the mandrel during winding.
- Another panel for example an end panel, and its corresponding flap can of course be taken as a reference or fixed point during the winding.
- the lower 19 and upper 20 edges of the series of panels 10, 11, 12 and 13 are located adjacent to the fold lines 7 and 9 joining with the series of lower 6 and upper 8 flaps suitable for forming the bottom and the cover of the box, slightly offset, by a distance corresponding substantially to the thickness of the cardboard so that during the formation of the bottom and the cover, there is no problem of excess thickness.
- the external flap 4 is not entirely covered by the second panel 11, which leaves at its end a rectangular surface 21 of the same dimension as the tongue 15.
- Figure 4 shows a first cut 2 identical to that of Figure 1, but reversed, the tongue 15 therefore being located on the other side of the cut.
- the second blank 24 here again comprises 4 panels, of the same transverse dimensions as the panels of the second blank 3 of FIG. 1, namely a first panel 10 integral and fixed on the central flap of the blank, the fold lines 14 being arranged as specified above with reference to Figures 1 to 3, relative to the fold lines 5 of the first cut.
- the second cutout 24 also includes a first end panel 25, which occupies all or substantially all of the surface of the adjacent flap 4 to which it is secured, a second end panel 26, and a fixing tab 27, connected to said adjacent panel 26 by a third fold line 28, offset to catch up with the excess thicknesses during folding.
- the tongue 27 is located on the side opposite that of the fixing tongue 15 of the first cut 2, projecting outside of said first cut.
- Figure 5 shows in section the box 29 obtained with the set of blanks of Figure 4 after winding around a mandrel.
- FIG. 6 shows a set 32 of cuts, namely a first cut 2 and a second cut 33, making it possible to produce the box 34 with double belt 34 ′ on four panels of FIG. 7.
- the upper 35 and lower 36 longitudinal edges of the second cut are either slightly offset inwards with respect to the fold lines 7 and 9 of the first cut, by a distance y equal or substantially equal to the thickness of the first cut, or immediately adjacent to or even confused with these fold lines.
- the dimensions of the end panels are also provided so that the lateral edges 33 ′ and 33 ′′ of the series come into contact during the formation of the box, the panels then forming an internal belt joined at its ends.
- edge 33 'level for example the fold line of the end flap 4 with the tongue 15 and the edge 33' 'is located at a distance equal to about the thickness of the second cut. , from the end edge 4 'of said flap 4.
- FIG. 8 shows another embodiment of a set of cutouts 37 comprising a first cut 2 and two identical second cuts 38 and 38 '.
- Each second cut has three panels 39, 40 and 41, the central panel 39 of which is respectively made integral with a large flap 4 of the first cut and whose two small side panels 40 and 41, for example of width equal to a third of the flap of the first adjacent cut, are, for one of the second cutouts (38) mounted to slide relative to the flaps adjacent to the large flap 4, for example by means of cold glue dots, and for the other (38 ') are fixed for one slidably to the adjacent flap 4, and for the other is located outside offset from the first cut.
- FIG. 10 shows a set 43 of cutouts according to the invention this time comprising a single second cutout 44 provided with three adjacent panels, namely a first panel 45 and two identical second panels 46 and 47 located on either side of the first panel 45 and connected by fold lines 14 offset from the fold lines 5 as previously described, the two second panels covering two small flaps 4.
- the fourth main flap 4 (large flap in the example) located towards the outside of the first cut, on the other side of the fixing tongue 12, is in turn not covered by said second cut.
- FIG. 11 shows the perspective view of the box 47 obtained with the blank 43, which is therefore reinforced only on its bottom and its side walls, the bottom being constituted by one of the main flaps 4 of the box.
- FIG. 12 shows another set 48 of cutouts provided with two second cutouts 49.
- the two second cutouts are of the same type as those described with reference to FIG. 8, but centered on the smallest main flaps and not on the large main flaps, which gives a box 50 reinforced on its two short sides 51 (see figure 13).
- FIG. 14 shows another set 52 of cutouts comprising a first cutout 2, and four identical second cutouts 53, namely three second cutouts located astride the fold lines 5 between flaps of the first cutout and a fourth second cutout located at the end, overlapping the peripheral edge 54 of the end flap located on the opposite side of the fixing tab 15, centered relative to this edge.
- the four second cuts are rectangular, formed of two identical panels, 55 and 56, of which one is for example fixed irremovably on the shutter opposite, and the other is secured at least temporarily sliding on the adjacent shutter, the third fold lines 14 being offset from the first lines of folding 5 of the first cut, to take account of the extra thicknesses.
- a box 57 is thus obtained, the four corners of which are reinforced by corner angles, as shown in FIG. 15.
- FIG. 16 shows another set 58 of cutouts according to the invention.
- the first cutout 59 comprises five main flaps, the two end flaps 60 being intended to overlap at the level of a rectangular portion 61 forming a tongue and extending outwards said flaps 60, as shown in the box 67 of FIG. 17.
- This box is completely reinforced by a second cutout 63 provided with five panels arranged according to the invention, namely a first panel 64 for example secured to a large flap of the first cutout before winding around the mandrel , irremovably, provided on one side with a small panel 65 suitable for superimposing and integrating in a sliding manner with an end flap 60, and on the other side with a series of three panels 66, 67 and 68 respectively coming substantially opposite the three corresponding components.
- FIG. 18 shows an assembly 69 comprising a first cutout 59 identical to that of FIG. 16, comprising two second cutouts 38 and 38 'arranged symmetrically, each second cutout comprising three flaps, namely a first central flap 39 and two small side flaps suitable for being placed opposite the two end flaps 60 of the first cut, respectively the flap 40 for one and the flap 41 for the other.
- a box 70 is thus obtained in accordance with FIG. 19 formed of an external belt provided with two internal reinforcements 71 on each side, in the shape of a U in section.
- FIG. 20 shows another embodiment of an assembly 72 according to the invention, comprising a first cut 2 and two second cut 73 provided with a first central panel 74 fixed by gluing and centered relative to the main flap 4, with which it is substantially confused.
- Each second cut also comprises, on either side of the first panel 74, two second rectangular side panels 75 and 76, symmetrical with respect to the first panel to which they are connected by fold lines 74 'parallel to the fifth fold lines 9, shifted towards the inside of the panel according to an embodiment of the invention more particularly described here, centered with respect to, and of width equal for example to a third of the width of the first panel, arranged to cooperate temporarily with sliding, respectively, with two flaps facing opposite suites of flaps 6 and 8.
- FIG. 21 is a schematic perspective view of the second cutouts 73, of reinforcement, in the box 77 according to the invention, therefore having two large reinforcement panels facing each other, each glued to a wall of the box and connected to two small panels, centered, perpendicular to the first panel, also glued with temporary possibility of sliding, for example by progressive setting of white glue.
- FIG. 22 shows another embodiment of a set 78 of cutouts, of which the second cutout 79, the flaps of which are identical to those of cutout 2, has flaps 80 on one side only and the first cutout 81 of shape identical to that of the second cut 79, with the exception of the end tab mounted inverted with respect to the first cut, has flaps 82 on the other side.
- the first cut has a small rectangular flap 85 not attached to the second cut which is designed and placed so that the lateral fold lines 14 are offset with respect to the fold lines 5 as described with reference to the Figure 1 for panel 10.
- the cutouts in FIG. 22 are inverted with respect to those in FIG. 1, the first cutout being located in FIG. 22 in the foreground relative to the second cutout.
- the flap 85 is connected on either side and respectively to a large rectangular flap 86 (86 ') provided with detachable portions 83 (83'), oval of small dimensions relative to the flap, for example between 1/3 and 1/20 of the surface, for example 1/10, fixed by gluing to the panel of the second facing cut, the rest of the surface of the flaps 86 (86 ') not being fixed to said second cut .
- the flap 86 is connected on the other hand to a fourth flap 87 also comprising a detachable portion 88 fixed to the second cut, the rest of the flap 87 being here still free relative to said second cut.
- each portion 83, 83 'and 88 is fixed by gluing of the "hot melt” type and is extended on the side of the flap 85 by a recess 84, 84' and 89 of the same transverse width with respect to following shutters that said portions, and of sufficient length to make up for the sliding of the portions torn transversely during the formation of the box 90 (see FIG. 23), and therefore the sliding of the flaps 86, 86 ′ and 87 of the first cut with respect to the second.
- the portions 83, 83 ′ and 88 respectively integral with a flap of the first cut and tearing off in the plane of the first cut, during winding, come to be embedded in the complementary recesses 84, 84 'and 89 in the extension of said portions.
- the portions can be fixed irremovably with a recess.
- the presence of the recesses allowing the play to be made up is therefore not necessary, although it is always possible to separate the first cut from the second cut once the box has been formed.
- the precut and tear-off portions are located on the internal side of the box, and will therefore be in direct contact with the mandrel during the tearing.
- FIG. 24 shows an assembly 91 comprising a first cut 2, and a second cut 92 for closing a box 93, for example usable for containing bulk products such as detergent or the like.
- the second blank 92 comprises a central panel 94 opposite a first main flap 4 of the first blank connected on either side by fold lines 95 offset towards the inside of the panel with respect to the fold lines 5 of the first cut and two secondary panels 96 and 97 symmetrical with respect to the central panel 94.
- the central panel 94 is integral with the main flap of the first cut, for example by "hot melt” bonding, the upper longitudinal peripheral edges 98 of the second cut being adjacent to the fifth fold lines 9 of the first cut.
- the first cut includes a longitudinal portion 99 of longitudinal dimension less than the dimension of the second cut formed by the panels 94, 96 and 97, for example with a distance 2 x y of a few millimeters.
- the second cut thus projects laterally on each side by a distance y. for example 5mm. It is also greater in height than the portion 99 which is delimited on one side by said fifth fold lines 9 and precut on the other longitudinal side 100 and on its two lateral sides 101, so that when the box 93 is formed (cf. FIG. 25) a partially openable cover is obtained around a joint 102 formed by fold lines 103 situated transversely to the flaps of the series 8, perpendicular to the fold lines 9 and in line with the lateral sides 101 of portion 99.
- edges 105 of the opening part 106 of this cover constituted by the portion 99, fit over the edges of the end portions 107 of the second cut, the lower part 108 of which is integral with the walls 109 of the box.
- FIG. 26 shows another assembly 110 according to an embodiment of the invention comprising a first cut 2 and a second cut 111 comprising a first central panel 112 rectangular fixed and opposite a first main flap precut in the upper part.
- the first panel 112 is connected by a fold line 113 parallel to the second fold lines 7 to a second identical central panel 114 whose longitudinal edge 115 is located at a determined distance d from the fifth fold line S corresponding to said first flap.
- the first central panel comprises on either side, opposite, and fixed so as to make up for the clearances on two second main flaps located on either side of said first flap, two second rectangular symmetrical panels 116 and 117 , connected by fold lines 14 offset as described above with respect to fold lines 5.
- each panel 118 and 119 has a stud 120 projecting from the periphery of the quarter circle of substantially height equal to ç ⁇ .
- Each of these two secondary panels is not integral with their adjacent main flap, so that they can slide.
- the assembly 110 makes it possible to obtain the box 121 with spout 122 of FIG. 27, the panels 118 and 119 being able to pivot frictionally along the inner part 123 of the walls . the corresponding box, their movements being blocked by the pins 120 when the latter come into contact with the upper strip 124 of the box located above the pouring spout and corresponding to a portion of first cut not cut over the distance d. above mentioned.
- FIG. 28 shows the last steps (A, B, C and D) of forming a box 125 according to an embodiment of the invention.
- each cut namely the first cut, external, 126 and the second cut, internal, 127, include a fixing tab respectively 128 and 129, located outside and at the opposite end of the series of shutters or panels of the other cutout.
- the tongue 129 of the second cutout 127 is pre-folded (step A, arrow 130) on the module (not shown) of determined dimensions, then the first and second cutouts are facing each other (said step B, arrow 131) opposite said tongue and the volume of determined dimensions.
- the internal end 132 of the end panel 133 previously glued, therefore comes to bear on the external face of the tongue 129.
- step C we fold (step C, arrow 134) the tongue 128 of the first cut around the third fold line 135 of the tongue and / or of the peripheral edge of the end panel opposite the second cut and we finish (step D, arrow 136) the folding of the tongue 128, previously glued, of the first cut, which is applied to the wall 137 opposite the box.
- FIG. 29 shows the last steps of a manufacturing method according to another embodiment according to the invention of an eight-sided box, produced around a mandrel (not shown).
- the assembly includes two cutouts 140 and 141.
- Each cutout includes a fixing tab, respectively 142 and 143, located on the same side of the series of respective shutters or panels and offset relative to each other at the level of the junction between the walls of the box.
- the fixing tongue 142 of the series of flaps of the first cut 140 is of greater width, for example twice as wide, (for example 6 cm), than the tongue 143 of the second cut, (for example 3 cm in width), so that it protrudes outwards from the latter as shown in Figure 29 (step A).
- a specific device 144 is also used which allows a pressure in two stages. First applying a first part 145 of the end flap of the second cut on the mandrel, then folded around the upper edge of the cut corner, the two tabs 142 and 143 previously glued.
- step B pressure is applied to the tongue 142 of the first cut, by means of an approximation stop 146 (step B), movable transversely relative to the mandrel, belonging to the device 144, then by means of 'a cut corner 147 (step C).
- FIGS. 30, 31 and 32 show embodiments of machines for the automatic production of boxes according to the invention.
- the machine 150 of FIG. 30 includes a first device 151 of known type, making it possible to take one by one the first cuts 152, for example by suction, from a magazine 153, to deposit them precisely on a movable table 154 secured to a frame 155.
- Glue sticks 156 of glue called "hot melt” or cold glue, of known type, mounted on the frame 155, make it possible to deposit lines or dots of adhesive on the flaps, at the fixing locations provided with the panels.
- a second device 157 similar to the first, makes it possible to deposit very precisely, with an accuracy of less than a millimeter, the second cut on the first cut which is in abutment on the wedging means 158, after therefore gluing the latter, on the one hand on the shutter 4 opposite the main panel if necessary, and on the other hand and in the case for example of using the machine with sets of cutouts of the type described with reference to FIG. 22, facing the precut portions of the secondary panels, with "hot melt” glue.
- the means for depositing the second blank on the first blank are also specified below.
- this bonding system of a precut part of the second cut on the first cut allows the overtaking thicknesses to be taken up by tearing off and sliding inside a recess in the corresponding panel.
- the assemblies thus formed are then evacuated to an intermediate storage 159 of the sets of flat cuts.
- FIG. 31 shows a machine 160 according to the invention for manufacturing a box around a mandrel 161.
- the winding assembly around the mandrel is of the type described in document FR-A-2 629 012, incorporated herein by reference, with movable equipment with arms (not shown).
- a first device 162 with suction gripping suction cup makes it possible to bring the first blank 163 from a reservoir 164 of blanks known in itself, onto a movable belt.
- the second cuts are placed on their edge and tilted at an angle between 10 ° and 40 ° relative to the vertical, on a 165 'system two or three motorized belts parallel to the direction of travel.
- the advance of the strips is controlled by two 165 "probes located on either side of the magazine, in the lower part of the cutouts.
- Each probe is formed by a rod substantially perpendicular to the strips and located at the lower end of the sloping store, on the side of the outlet of the second cutouts.
- Said rod is articulated around a lower axis and provided with a return spring tending to bring the upper end of the rod slightly protruding above said bands, thus playing the role of a retractable stop during removal of the second vacuum cutting.
- the probe system allows advancing the cuts to a strictly identical lower reference.
- a system of cams and mechanical lever arms allows perfect repetition of the movement of movement of said cut entered by suction between the store and the position of removal on the first cut.
- the set of blanks thus formed is then moved by carriage 168, in a manner known per se, under the folding mandrel around which the body is formed by one in particular of pivoting arms which surround the cutting flaps by folding them around the mandrel, and of a plate, or other pressure means, which precisely centers then plates the flap and the lower panel relative to , and on, the lower horizontal force of the mandrel, before closing the flaps forming the bottom of the box by fixing them to the others by gluing, as described in documents FR-A-2 629 012 or FR- A-2 665 137 cited above.
- the boxes thus formed are evacuated by ejection, for example by pushing inside the mandrel on the formed bottom.
- FIG. 32 shows another embodiment of the invention which this time comprises two frames, namely a frame corresponding to a machine 150 as described with reference to FIG. 30 for manufacturing cutout assemblies, and a machine 170 for manufacturing the box proper by. winding of the assembly with overtaking thicknesses.
- the two machines for manufacturing the set of blanks, and for forming the box itself can thus be dissociated and placed in different geographic locations unlike the embodiment of FIG. 31.
- the cutout assemblies 170 are conveyed for example by conveyor belt 172 known in themselves, instead of being stored on a pallet.
- the boxes thus formed are then removed in a manner known per se.
- the first cut 81, intended to form the outer belt of the box 90 is taken from the store 162 by suction and placed flat horizontally, on displacement means known in themselves, the flaps 82 being directed towards the side mandrel.
- the correctly guided cut is then brought to the horizontal under the "hot melt” glue means 167 which inject from above three dots of glue on the portions 83, 83 'and 88 of the first cut.
- the two joined cuts are then moved towards the mandrel.
- Lines or dots of "hot melt” glue are deposited on the 15 '' tab and the edge end of the panel of the second cut, suitable for cooperating with the tongue 15 ′, as well as on the flaps 82 intended to fix the external face of the bottom of the box.
- the assembly is brought on a mandrel with four edges (equivalent to the mandrel 161 with eight edges shown in FIG. 31 for an eight-sided box).
- the flap 85 and the corresponding panel are placed under the underside of the mandrel at a determined distance.
- a team of movable arms rolls up on the mandrel the series of flaps 86, 87 on one side, and the flap 86 'and the tongue 15' 'on the other side, successively pressing the flaps 86 and 87, causing the tearing of the portions 83 and 88 which fit into the corresponding recesses 84 and 89, and pressing the flap 86, causing the portion 83 'to be torn off and its fitting into the recess 84'.
- the flaps 82 are then successively folded down on the bottom of the mandrel by gluing them one on the other in a known manner.
- the box is then ejected for example by pushing on the bottom via the mandrel.
- a closed box is thus obtained on the bottom and open on the side of the flaps 80.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cartons (AREA)
- Making Paper Articles (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9600677 | 1996-01-22 | ||
FR9600677A FR2743780B1 (fr) | 1996-01-22 | 1996-01-22 | Ensemble de decoupes, boite, procede et machine pour la fabrication de boite a partir d'un tel ensemble de decoupes |
PCT/FR1997/000113 WO1997027114A1 (fr) | 1996-01-22 | 1997-01-21 | Ensemble de decoupes, boite, procede et machine pour la fabrication de boite a partir d'un tel ensemble de decoupes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0876281A1 true EP0876281A1 (fr) | 1998-11-11 |
EP0876281B1 EP0876281B1 (fr) | 2000-04-26 |
Family
ID=9488329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97901131A Expired - Lifetime EP0876281B1 (fr) | 1996-01-22 | 1997-01-21 | Ensemble de decoupes, boite, procede et machine pour la fabrication de boite a partir d'un tel ensemble de decoupes |
Country Status (8)
Country | Link |
---|---|
US (1) | US6015084A (fr) |
EP (1) | EP0876281B1 (fr) |
AT (1) | ATE192101T1 (fr) |
AU (1) | AU712088B2 (fr) |
DE (1) | DE69701789T2 (fr) |
FR (1) | FR2743780B1 (fr) |
NZ (1) | NZ326394A (fr) |
WO (1) | WO1997027114A1 (fr) |
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-
1997
- 1997-01-21 WO PCT/FR1997/000113 patent/WO1997027114A1/fr active IP Right Grant
- 1997-01-21 EP EP97901131A patent/EP0876281B1/fr not_active Expired - Lifetime
- 1997-01-21 AT AT97901131T patent/ATE192101T1/de not_active IP Right Cessation
- 1997-01-21 US US09/117,348 patent/US6015084A/en not_active Expired - Lifetime
- 1997-01-21 AU AU14485/97A patent/AU712088B2/en not_active Expired
- 1997-01-21 DE DE69701789T patent/DE69701789T2/de not_active Expired - Lifetime
- 1997-06-21 NZ NZ326394A patent/NZ326394A/xx not_active IP Right Cessation
Non-Patent Citations (1)
Title |
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See references of WO9727114A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0876281B1 (fr) | 2000-04-26 |
AU712088B2 (en) | 1999-10-28 |
US6015084A (en) | 2000-01-18 |
FR2743780B1 (fr) | 1998-04-17 |
DE69701789T2 (de) | 2000-11-23 |
WO1997027114A1 (fr) | 1997-07-31 |
NZ326394A (en) | 1998-10-28 |
FR2743780A1 (fr) | 1997-07-25 |
DE69701789D1 (de) | 2000-05-31 |
AU1448597A (en) | 1997-08-20 |
ATE192101T1 (de) | 2000-05-15 |
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