EP0109875B1 - Procédé et machine pour la mise en forme de plateaux d'emballage en carton, et plateau ainsi obtenu - Google Patents

Procédé et machine pour la mise en forme de plateaux d'emballage en carton, et plateau ainsi obtenu Download PDF

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Publication number
EP0109875B1
EP0109875B1 EP83402063A EP83402063A EP0109875B1 EP 0109875 B1 EP0109875 B1 EP 0109875B1 EP 83402063 A EP83402063 A EP 83402063A EP 83402063 A EP83402063 A EP 83402063A EP 0109875 B1 EP0109875 B1 EP 0109875B1
Authority
EP
European Patent Office
Prior art keywords
base
walls
transversal
tray
entablatures
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.)
Expired
Application number
EP83402063A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0109875A1 (fr
Inventor
Jean-Paul Geneix
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.)
Continentale Du Carton Ondule Socar SA Ste
Original Assignee
Continentale Du Carton Ondule Socar SA Ste
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 Continentale Du Carton Ondule Socar SA Ste filed Critical Continentale Du Carton Ondule Socar SA Ste
Priority to AT83402063T priority Critical patent/ATE28163T1/de
Publication of EP0109875A1 publication Critical patent/EP0109875A1/fr
Application granted granted Critical
Publication of EP0109875B1 publication Critical patent/EP0109875B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/44—Folding sheets, blanks or webs by plungers moving through folding dies
    • B31B50/46—Folding sheets, blanks or webs by plungers moving through folding dies and interconnecting side walls
    • 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
    • B65D5/441—Reinforcements
    • 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
    • B65D5/0015—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 the container being formed by folding up portions connected to a central panel
    • B65D5/003—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 the container being formed by folding up portions connected to a central panel having ledges formed by extensions of the side walls
    • 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
    • B65D5/005—Separate or attached stacking elements
    • B65D5/0075—Paper elements affixed to the container blank before or during erection

Definitions

  • the present invention relates to improvements made to corrugated cardboard packaging trays, for the packaging and display for sale of fresh products, such as fruit and vegetables, of the type comprising a bottom, two longitudinal walls, two transverse walls of height greater than that of the longitudinal walls and two horizontal entablatures advancing parallel above the bottom from the upper edge of the transverse walls. These entablatures are therefore raised relative to the longitudinal walls and thus allow stacking of the trays without deterioration of the products they contain, as well as good ventilation of said products.
  • each of the terminal portions of the plate which comprise the entablatures will be designated by head.
  • the tray heads When transporting and exposing the trays filled with products and stacked in piles, the tray heads are subjected to compression forces. Beyond a certain threshold, which of course depends on the position of the tray in the stack, the density of the packaged products as well as their degree of humidity, the transverse walls of the trays may buckle or soften in losing their resistance. In addition, during their transport from the places of production to the points of sale, the stack of trays work under the action of repeated and sudden shocks, which contributes to further weaken the resistance of the heads of the trays.
  • patent FR-A-2 043 948 there is known a packaging tray of the type set out in the preamble of claim 1, said tray comprising a bottom, two longitudinal walls, two transverse walls of height greater than that of the longitudinal walls. and which each end at its ends with two angle returns, two horizontal entablatures advancing parallel to the bottom from the horizontal upper edges of the transverse walls, and two independent reinforcing plates applied against the transverse walls and intended to reinforce the resistance to stacking of the ends of the tray or heads which are defined between the bottom and the entablatures.
  • the reinforcement plates which are generally made of corrugated cardboard, are cut with the same surface as that of the internal faces of the transverse walls and are glued or stapled against the latter.
  • the transverse walls should have better resistance to stacking, but in reality there is practically no improvement in resistance.
  • up to a given compression force only the transverse walls of the tray participate in the resistance to stacking, since the plates have a height less than the external height of the transverse walls. This force being generally greater than the buckling force of the transverse walls, it follows that when the plates intervene, the transverse walls are already deformed. At this time, the weight of the stack plates is no longer supported except by the reinforcement plates which generally do not have the necessary resistance and in turn end up flaming.
  • the transverse walls of the tray and the reinforcement plates intervene at different times.
  • the plate is practically not reinforced.
  • the cottage or stapling of the reinforcement plates with transverse walls introduces a delay in the manufacturing cycle of the tray.
  • a packaging tray according to the preamble of claim 1 and which is characterized in that the reinforcing plates are held in place by the fact that their horizontal edges are fitted in grooves of thickness substantially equal to that of the plates and which are formed by crushing the cardboard along the fold lines by which the side walls are articulated on the bottom and on the entablatures, said reinforcement plates having for this purpose a height substantially equal to the internal height of the transverse walls increased by the sum of the depths of the two grooves in which each of them fits.
  • the present invention also relates to a machine for implementing this method.
  • the machine described in French patent application No. 79 02 484 is used for this purpose, to which some modifications are made to adapt it to the volume setting of trays with reinforced heads.
  • this machine comprises a movable assembly consisting of two horizontal and parallel punches of section equal to the internal section of the heads and which are articulated, by means of connecting rods arranged in the form of articulated parallelograms, on a base which is driven by a reciprocating linear movement between an upper position for which the punches are in contact with the cardboard plate to be shaped and a lower position for which the punches are released from the plate.
  • the improvement according to the invention lies in the fact that in the lower position of the assembly, the punch and rod assembly is in the collapsed position, the external vertical faces of the punches then being respectively situated exactly under the grooves separating the two transverse walls. and the bottom of the cardboard blank, and respectively touching the outlet openings of two fixed stores supplying reinforcement plates, and that said external vertical faces are provided with gripping means capable of gripping the first plate of each store in view to position it under the groove separating the corresponding transverse wall and the bottom of the blank and not to release it only when the heads of the plate have been shaped.
  • the gripping means can for example be constituted by a vacuum source which sucks the wafers through openings formed on said external faces of the punches.
  • suitable centering means can be provided.
  • the latter comprise at least one patch attached to said external faces of the punches and which, when the punches are correctly centered, comes to fit into a recess of complementary shape formed on the plates.
  • the boards can be made of any rigid or semi-rigid material, for example corrugated cardboard, flat cardboard, chipboard, plywood, molded plastic, hardboard, etc.
  • They can have extremely varied forms. In their simplest embodiment, they have a rectangular shape with dimensions greater than those of the transverse walls of the tray, possibly with cutouts on their edges corresponding to the cutouts existing on the heads of the tray. They can also be extended in the longitudinal direction by two lateral flaps intended to be applied against the longitudinal walls of the plate. Such a double dihedral shaped plate provides increased reinforcement of the plate in the corners of the heads.
  • Figure 1 shows a fruit tray 10, said heads.
  • This tray comprises a rectangular bottom 12.
  • two longitudinal walls 14, two transverse walls 16 terminated at each end by angle returns 18 which are made integral with the inner face of the longitudinal walls 14 by gluing or stapling, and two raised entablatures 20 , contiguous to the transverse walls and forming a projection above the bottom and parallel lie to this one.
  • the entablatures end at their ends by flaps 22 which are applied to the corner returns 18 and are joined thereto, for example by gluing.
  • the plates 24 are positioned perpendicular to the cardboard plate 10 in the developed state (FIG. 3), making one of their longitudinal edges coincide with the fold lines 26 of the transverse walls 16 on the bottom 12.
  • the transverse walls are then straightened at 90 ° relative to the bottom, then the angle returns 18 and the entablatures 22 are folded to bring them into the position they have in FIG. 1.
  • the embodiment of Figure 3 will be described but not claimed.
  • the plate 24 has a width 1 greater than the internal height h of the head of the plate 28. Likewise, its length is greater than the internal length of the head of the plate. As a result, during the folding of the cardboard the sides 30, 32 of the folding lines pinch the edges of the plates, thus keeping the latter in place, and this without it being necessary to glue or staple them to the walls transverse 16.
  • grooves 34 of width substantially equal to the thickness of the reinforcing plates 24 are printed on the cardboard, along the fold lines which surround the transverse walls 16. pads are fitted into said grooves, so that the pads are securely held in place.
  • the plate 24 of Figure 5 is rectangular and may have on its longitudinal edges the same cuts as those of the transverse walls 16 of the plate.
  • the plate of Figure 6 comprises a central portion 24 and two side flaps 36 intended to be applied against the transverse wall 16 and the flaps 18 of the tray, thus giving the tray heads increased strength.
  • cut-shaped parts 38 are provided between the central part 24 and the flaps 36. These flaps 38 are placed at an angle in the corners and thereby ensure even better resistance of the heads of tray.
  • the machine for shaping the plates comprises an assembly 39 which can move vertically and alternately under the action of motor means not shown.
  • This equipment comprises a horizontal base 40 carrying two identical sets of two vertical flat flanges 42, 44 arranged in rows of two.
  • each of the flanges 42, 44 are articulated the ends of two identical and parallel rods, respectively 46, 48 and 50, 52, the other ends of which are articulated on hollow parallelepiped punches 54, 56, of section substantially complementary to that of the interior of the plate heads 28.
  • the links 46, 48 are crossed with the links 50, 52, each of said pairs of links forming a deformable articulated parallelogram.
  • the articulation axes of the links on the flanges and on the punches are horizontal and parallel.
  • centering pads 74 intended to come to fit into complementary notches 76 formed on the longitudinal edges of the plates 24.
  • the machine is in the state shown in FIG. 7.
  • a cardboard plate 10 in the developed state is brought into the centered position, above the movable assembly 39 with its fold lines turned downwards, and it is held stationary in this position by stop means not shown.
  • the moving element 39 is in its low position for which its punches 54, 56 are separated and are respectively flush with the openings of the magazines 62, 64.
  • the punches 54, 56 are correctly centered opposite the opening of the magazines thanks to the pellets 74 which fit into the notches 76.
  • the depression which is exerted through the orifices 68 maintains the first plate 24 of each magazine applied against the contiguous punch.
  • the moving element 39 then mounts as a unit under the stress of the driving means, causing in their movement the two aspirated plates 24.
  • the punches 54, 56 arrive at their upper position, the upper edges of the plates are in contact with the lines of folding 26.
  • Folding elements 80 and 82 then straighten around the plates and punches, the transverse walls 16, and longitudinal 14, the angle returns 18, the entablatures 20 and the flaps 22. As shown in FIG. 9, the plates 32 are therefore pinched all along their peripheral edge between the transverse walls 16 and the lips of the fold lines which surround the latter.
  • the vacuum is then cut so as to separate the plates 24 from the punches.
  • the base 40 then begins its downward movement.
  • the punches 54, 56 approach chent by sliding on the inner faces of the entablatures 20 which are held by the folding elements 82.
  • the punches are completely released from the entablatures 20, they are free to accompany the base 40 in its downward movement (FIG. 10).
  • the links 46, 48, 50, 52 return to their initial horizontal position in FIG. 8, the punches coming tangentially to join the store openings.
  • the tray can then be removed to make room for another blank.
  • FIG. 10 shows a particular embodiment of a store for supplying wafers 24.
  • the store comprises four horizontal rods 84, 86, 88, 90 arranged so that the wafers can rest thereon for their notches 76.
  • the rods therefore hold the plates and guide them in their movement towards the opening of the magazine. It goes without saying that the stores can have any other appropriate configuration.
  • the tray shaping machine may include means which deactivate the vacuum source as soon as the stack of trays formed has a predetermined number of trays. From this moment, the punches will no longer support the pads.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Cartons (AREA)
  • Buffer Packaging (AREA)
  • Packaging Frangible Articles (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
EP83402063A 1982-10-26 1983-10-24 Procédé et machine pour la mise en forme de plateaux d'emballage en carton, et plateau ainsi obtenu Expired EP0109875B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83402063T ATE28163T1 (de) 1982-10-26 1983-10-24 Kartonsteige, verfahren und vorrichtung zum aufrichten derselben.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8217912 1982-10-26
FR8217912A FR2534878A1 (fr) 1982-10-26 1982-10-26 Procede et machine pour la mise en forme de plateaux d'emballage en carton, et plateau ainsi obtenu

Publications (2)

Publication Number Publication Date
EP0109875A1 EP0109875A1 (fr) 1984-05-30
EP0109875B1 true EP0109875B1 (fr) 1987-07-08

Family

ID=9278606

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83402063A Expired EP0109875B1 (fr) 1982-10-26 1983-10-24 Procédé et machine pour la mise en forme de plateaux d'emballage en carton, et plateau ainsi obtenu

Country Status (6)

Country Link
EP (1) EP0109875B1 (enrdf_load_stackoverflow)
AT (1) ATE28163T1 (enrdf_load_stackoverflow)
DE (2) DE3372353D1 (enrdf_load_stackoverflow)
ES (1) ES526747A0 (enrdf_load_stackoverflow)
FR (1) FR2534878A1 (enrdf_load_stackoverflow)
PT (1) PT77552B (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2597400B1 (fr) * 1986-04-21 1988-07-01 Socar Dispositif pour le montage de plateaux en carton
FR2609965B1 (fr) * 1987-01-23 1989-10-27 Nicollet Hugues Sa Emballage du genre caisse, en particulier caisse a legumes en carton, carton ondule ou autre materiau en feuille
DE3739890A1 (de) * 1987-11-25 1989-06-08 Stabernack Gmbh Gustav Kommissioniersteige aus faltmaterial
FR2635082B1 (fr) * 1988-08-05 1990-12-28 Terle Maurice Plateau gerbable en carton
ES1008619U (es) * 1988-12-22 1989-05-01 Boix Maquinaria, S.A. Dispositivo de refuerzo para cajas de carton.
FR2711944A1 (fr) * 1993-11-05 1995-05-12 Qualipack Dispositif de formage d'un flan préencollé.
DE102007044376B4 (de) * 2007-09-17 2011-04-07 Gustav Stabernack Gmbh Stapelbares Modultray

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1497713A (en) * 1921-08-22 1924-06-17 Charles H Crowell Corrugated-paper-board shipping container and blank therefor
US2962944A (en) * 1958-12-04 1960-12-06 Alexander Ungar Inc Box-making machine
US3136473A (en) * 1962-12-26 1964-06-09 Paper Mate Mfg Co Box construction
US3456563A (en) * 1967-06-22 1969-07-22 Precision Produce Specialties Carton forming machine
FR2043948A5 (enrdf_load_stackoverflow) * 1969-05-02 1971-02-19 Lafarge Emballage
US4019427A (en) * 1972-02-28 1977-04-26 Continental Can Company, Inc. Partition assembler
FR2273715A1 (fr) * 1974-06-05 1976-01-02 Surepack Machine de pliage pour le montage de plateaux d'emballage en carton

Also Published As

Publication number Publication date
EP0109875A1 (fr) 1984-05-30
DE3372353D1 (en) 1987-08-13
PT77552B (fr) 1986-03-12
ES8501701A1 (es) 1984-12-01
ES526747A0 (es) 1984-12-01
FR2534878A1 (fr) 1984-04-27
DE109875T1 (de) 1984-11-08
PT77552A (fr) 1983-11-01
FR2534878B1 (enrdf_load_stackoverflow) 1985-03-08
ATE28163T1 (de) 1987-07-15

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