EP0621193A1 - Zuschnitt, Verfahren zum Schneiden eines Zuschnittes, und Schale aus Wellpappe - Google Patents

Zuschnitt, Verfahren zum Schneiden eines Zuschnittes, und Schale aus Wellpappe Download PDF

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Publication number
EP0621193A1
EP0621193A1 EP94400860A EP94400860A EP0621193A1 EP 0621193 A1 EP0621193 A1 EP 0621193A1 EP 94400860 A EP94400860 A EP 94400860A EP 94400860 A EP94400860 A EP 94400860A EP 0621193 A1 EP0621193 A1 EP 0621193A1
Authority
EP
European Patent Office
Prior art keywords
flaps
main
blank
edges
flap
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.)
Withdrawn
Application number
EP94400860A
Other languages
English (en)
French (fr)
Inventor
Guy Coalier
Jean-Claude Moreau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Otor SA
Original Assignee
Otor SA
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 Otor SA filed Critical Otor SA
Publication of EP0621193A1 publication Critical patent/EP0621193A1/de
Withdrawn legal-status Critical Current

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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
    • B65D5/001—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 stackable
    • 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
    • B65D5/0227—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 by inward folding of flaps and securing them by heat-sealing, by applying adhesive to the flaps or by staples
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2301/00—Details of blanks
    • B65D2301/10—Blanks mutually positioned to minimise waste material upon cutting out the individual blank from a continuous or large sheet

Definitions

  • the present invention relates to a blank and a process for cutting a blank from a sheet of corrugated cardboard or the like for producing a tray with cut corners, of the type comprising a series of nine flaps connected to each other by first fold lines. .
  • the present invention aims to provide a blank, a cutting process and a tray for red fruits, mushrooms and other fragile fruits or vegetables that respond better than those previously known to the requirements of the practice, in particular in that it allows the easy manufacture of robust trays, at low cost, which can in particular and in general, but in a nonlimiting manner, be stacked one inside the other, for example to be stored before filling.
  • the invention essentially proposes a blank in a sheet of corrugated cardboard for the production of a tray with cut corners, comprising a series of nine flaps connected to each other by first fold lines, namely four identical main flaps. two by two, three intermediate flaps separating said main flaps two by two, and two end flaps, one of which forms a fixing tab, each main flap having a flap connected to an edge of said main flap, called the lower edge, by a second fold line, to form the bottom of the box, the intermediate flaps and the end flaps being devoid of flaps, said intermediate flaps and at least one end flap being suitable for forming the cut corners of said box to be produced, characterized in that the first fold lines are convergent, the main flaps forming isosceles trapezoids.
  • large radius of curvature is meant in particular a radius of between about 30 cm and about 150 cm.
  • the invention also provides a tray obtained with a blank as described above, in the form of a pyramid trunk, comprising four main lateral faces, two by two identical and connected together by four secondary faces forming cut corners, one of said faces secondary including at least partly a double thickness of cardboard for fixing by gluing, and a bottom formed by four flaps respectively connected to said main lateral faces by fold lines, called second fold lines, characterized in that the main lateral faces form isosceles trapezoids.
  • the cover can also be constituted differently for example by a single flap connected to the upper edge of only one of the main flaps, suitable for covering the entire tray, and comprising for example a tongue arranged to cooperate with the main flap in screw screw when the tray is formed.
  • FIG. 1 shows a blank 1, made of corrugated cardboard, for example 2 mm thick, according to an embodiment of the invention.
  • the blank has a series of nine flaps 2, 3, 4, 5, 6, 7, 8, 9 and 10 interconnected by first fold lines 2 'to 9' converging, that is to say non-parallel between them. They form two by two, that is to say two fold lines by two fold lines belonging to the same flap, an acute angle between them, for example 3 °.
  • the suite comprises four main components 3, 5, 7 and 9, three intermediate components 4, 6 and 8, and two end components 2 and 10.
  • the main flaps 3 and 7 on one side (large flaps in the embodiment more particularly described here), 5 and 9 on the other (small flaps) are identical in pairs and form isosceles trapezoids whose large bases 3a, 5a, 7a and 9a constitute the upper edges of the main faces of the tray to be produced from the blank 1, and the small bases 3b, 5b, 7b and 9b correspond to the lower edges of said faces and are connected respectively by the lines of folding 3 '', 5 '', 7 '' and 9 '' (confused with the edges lower in the figure) with four flaps 11, 12, 13 and 14 intended to form the bottom of the box and which will be detailed later.
  • the intermediate and end flaps are such that the flaps 2 and 6 on the one hand, 4, 8 and 10 on the other hand, are identical.
  • Each intermediate or end flap has an upper edge comprising a slight recess, for example of 3 mm, relative to the upper edge of an adjacent main flap.
  • edges 4a, 5a and 6a are in line with each other and form a broken line.
  • edges 6a and 8a also have a recess 6'a and 7'a relative to the edge 7a in a manner identical to the recesses of the edges 2a and 4a relative to the edge 3a.
  • edges 8a and 9a are in the extension of one another, the edge 10a of the end flap 10, on the other hand having a recess 9'a relative to the edge 9a of the main flap 9 adjacent.
  • the intermediate flaps 4, 6, 8 and the end flaps 2 and 10 have for their part, and more precisely a substantially identical shape, of contour in isosceles trapezium.
  • the flaps 11, 12, 13 and 14 respectively comprise external edges 11a, 12a, 13a and 14a and lateral edges 11b, 11c; 12b, 12c; 13b, 13c and 14b, 14c, the respective lateral edges and facing two adjacent flaps being in contact with each other, for example over two thirds of their length from the outer edges, when the blank is flat.
  • two flaps 11 and 13 corresponding to the main flaps 3 and 7 are identical, their lateral edges having oblique portions at 450 outwards, from the second fold lines , over a length l equal to the distance existing between the ends of the second fold lines located opposite, on the one hand of the main flap 11 or 13 and on the other hand of the adjacent flap 12 or 14.
  • the remaining lateral edge portions of the flaps 11 and 13, not at an angle, are perpendicular to the corresponding second fold lines 3 '' and 7 '', the outer edges 11a and 13a being respectively parallel to said second fold lines 3 '' and 7 ''.
  • the flaps 12 and 14 have specific shapes which will be detailed with reference to the cutting process. These shapes are determined on the one hand by the shapes of the other two flaps and on the other hand by the simultaneous cutting of the adjacent blanks.
  • orifices 15 in the main flaps for example circular and arranged symmetrically with respect to the perpendicular median line of the trapezoidal flaps, to facilitate the examination of the contents of the tray, and to allow ventilation.
  • the large flaps 3 and 7 have three in a triangle and the small flaps 5 and 9, two on the median itself.
  • the tray 16 is of slightly pronounced frustoconical shape with cut corners, and has four main side faces 17, 18, 19, 20, two by two identical formed by the main flaps 3, 5, 7 and 9, connected together by four faces secondary 21, 22, 23, 24 formed by the intermediate flaps 4, 6, 8 and by the end flap 2, one of said faces 24 comprising at least in part a double thickness 25 of cardboard constituted by the other flap end 10 fixed to said end flap 2 for example by gluing.
  • the tray 16 comprises a bottom 26 constituted by the four flaps 11, 12, 13 and 14 connected to the lateral faces by the second fold lines, as seen previously for the blank 1.
  • the bottom 26 comprises two identical flaps 11 and 13 of transverse dimension d equal to half the transverse dimension of the bottom, so that the outer edges 11a and 13a of the flaps are in contact with each other, the lateral edges of said flaps being in turn, on the one hand in contact with the lower edges 5b and 9b of the main flaps 5 and 9 along the second fold lines 5 '' and 9 '', and on the other hand in the extension of the oblique surface of the corresponding secondary faces, adjacent to the main face carrying the flap.
  • the other two flaps 12 and 14 are folded below the two identical flaps 11 and 13, on the outer face of which they are glued.
  • FIG. 3 shows a sheet 27 of corrugated cardboard, the grooves of which are arranged parallel to the transverse direction (arrow 28) of the sheet.
  • the suites of shutters 32, 32 ', etc are cut by punching; 52, 52 ', etc connected to the flaps 33, 33', etc ....; 53, 53 ', etc ... along parallel broken lines 34, 34', etc ...; 54, 54 ', etc ...
  • the recess is entirely located above the upper edge of a main flap.
  • FIG. 6 shows a variant of the cut between two rows, showing a recess 71 partially overlapping two upper flap edges, namely a main upper flap 72 and an intermediate upper flap 73.
  • first and second fold lines are formed between flaps and flaps in a manner known per se, for example by compression between a blade and a counter blade.
  • Figures 7 and 8 show two blanks 75, 75 'substantially identical except for the arrangement of the lower flaps 76, 77, 78 and 79, (respectively 76', 77 ', 78' and 79 '), intended for form the bottom and which, in the case of the blank 75 include side edges away from each other, unlike the blank 75, wherein two adjacent flaps are in contact with each other.
  • Each blank 75 (75 ') comprises, as described above, a series of nine flaps connected to each other by converging fold lines 80 (80'), namely four main flaps 81 (81 '), three intermediate flaps 82 (82' ) and two end flaps 83 (83 ').
  • the main flaps 81 (81 ') comprise, in addition to the lower flaps mentioned above, to which they are attached by second fold lines, a series 84 (84') of upper flaps connected to the upper edges of said main flaps by third fold lines 85 (85 '), parallel to the second fold lines, to form the cover of the tray when the blank is folded.
  • It comprises two sets of identical overlapping flaps, namely two identical flaps 86 each having two lateral edges respectively comprising a biased portion 87 at 45 ° outwards, from and relative to the third fold line 85 to which the flap is attached, followed by a second part 88, perpendicular to said line to the edge 89, parallel to said line 85, and two rectangular or substantially rectangular flaps 90 attached for example to the smallest flaps main.
  • a slight removal between the third fold lines allows the lid to be closed by exact superimposition of the flaps closed over each other.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
EP94400860A 1993-04-21 1994-04-20 Zuschnitt, Verfahren zum Schneiden eines Zuschnittes, und Schale aus Wellpappe Withdrawn EP0621193A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9304701 1993-04-21
FR9304701A FR2704204B1 (fr) 1993-04-21 1993-04-21 Flan, procede de decoupe de flan, et barquette en feuille de carton ondule.

Publications (1)

Publication Number Publication Date
EP0621193A1 true EP0621193A1 (de) 1994-10-26

Family

ID=9446285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94400860A Withdrawn EP0621193A1 (de) 1993-04-21 1994-04-20 Zuschnitt, Verfahren zum Schneiden eines Zuschnittes, und Schale aus Wellpappe

Country Status (2)

Country Link
EP (1) EP0621193A1 (de)
FR (1) FR2704204B1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553804A (en) * 1947-03-28 1951-05-22 Jr Julius A Zinn Carton having end closures of substantially uniform thickness
US2875943A (en) * 1952-02-13 1959-03-03 John G Cooper Cartons
DE1061174B (de) * 1956-01-30 1959-07-09 Bergstein Packaging Trust Mehreckiger Behaelter aus Pappe und Verfahren zur Herstellung desselben
EP0468860A1 (de) * 1990-07-24 1992-01-29 Otor Vorrichtung und Verfahren zur Herstellung von Behältern aus Folienmaterial

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553804A (en) * 1947-03-28 1951-05-22 Jr Julius A Zinn Carton having end closures of substantially uniform thickness
US2875943A (en) * 1952-02-13 1959-03-03 John G Cooper Cartons
DE1061174B (de) * 1956-01-30 1959-07-09 Bergstein Packaging Trust Mehreckiger Behaelter aus Pappe und Verfahren zur Herstellung desselben
EP0468860A1 (de) * 1990-07-24 1992-01-29 Otor Vorrichtung und Verfahren zur Herstellung von Behältern aus Folienmaterial

Also Published As

Publication number Publication date
FR2704204B1 (fr) 1995-07-13
FR2704204A1 (fr) 1994-10-28

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