EP0700836A2 - Emballage en matériau plastique avec couvercle à charnière et procédé et dispositif pour sa fabrication - Google Patents

Emballage en matériau plastique avec couvercle à charnière et procédé et dispositif pour sa fabrication Download PDF

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Publication number
EP0700836A2
EP0700836A2 EP95112488A EP95112488A EP0700836A2 EP 0700836 A2 EP0700836 A2 EP 0700836A2 EP 95112488 A EP95112488 A EP 95112488A EP 95112488 A EP95112488 A EP 95112488A EP 0700836 A2 EP0700836 A2 EP 0700836A2
Authority
EP
European Patent Office
Prior art keywords
edge
top wall
side walls
flanges
flange
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Withdrawn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
EP95112488A
Other languages
German (de)
English (en)
Other versions
EP0700836A3 (fr
Inventor
Björn Henry Andersson
Stig Olle Levin Nilsson
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.)
Tetra Laval Holdings and Finance SA
Original Assignee
Tetra Laval Holdings and Finance 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 Tetra Laval Holdings and Finance SA filed Critical Tetra Laval Holdings and Finance SA
Publication of EP0700836A2 publication Critical patent/EP0700836A2/fr
Publication of EP0700836A3 publication Critical patent/EP0700836A3/fr
Withdrawn legal-status Critical Current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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
    • B65D75/20—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks doubled around contents and having their opposed free margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
    • B65D75/22—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks doubled around contents and having their opposed free margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding the sheet or blank being recessed to accommodate contents

Definitions

  • the invention relates to a plastic packaging with side walls, bottom and top wall, the top wall being articulated to a side wall via a folding edge forming a hinge and connected to the side walls by a sealing seam. Furthermore, the invention relates to a method for producing such packaging and also to an apparatus for carrying out the method, this apparatus having a first deep-drawn molded part with a cup-shaped depression.
  • the object of the invention is therefore a sterile packaging with the aforementioned To create features that are easy to manufacture, impeccably tight and yet easy for the end user to open.
  • the invention provides for the packaging that the side walls, to which the upper wall is not articulated via a folded edge, each have a flange which merges into an adjacent flange, and that the upper wall has outer edges such that the latter the flanges of the side walls are placed on and sealed with them in such a way that the sealing seam runs outside of a line of weakness arranged next to the folded edge and in the flanges.
  • At least the latter side walls have a flange, that is to say an essentially flat edge surface which runs approximately transversely to the side wall.
  • one flange should merge into an adjacent one, so that there is a narrow, continuous surface next to the side walls, to which the top wall is not articulated.
  • the outer edges of the top wall are placed on these flanges and sealed.
  • the sealing seam required for this therefore runs in the flanges next to the side walls without a folded edge and in the outer edges of the upper wall, and it lies outside a line of weakness which is also arranged in the flanges and in the outer edges of the upper wall.
  • the line of weakness should not affect the tightness of the outer edges of the top wall or the flanges on the side walls.
  • the top wall is square and the folded edge runs along a straight edge of a side wall.
  • the line of weakness is arranged in the flanges of the three other side walls and adjoins the folding edge in a U-shape. If you look at the closed plastic packaging according to of the invention from above, then the folded edge lies as a straight hinge along a first side wall and adjacent to the latter, while the line of weakness has the shape of a U. The open leg ends of this U are then closed by the folded edge.
  • the line of weakness begins at one end of the folded edge, running approximately transversely to it, over one side wall, then bends in an L-shape to the end of the next side wall and then bends again in an L-shape and extends to the end of the further side wall, where it meets the other end of the folded edge.
  • the line of weakness is given the shape of the U, the free ends of the two legs of the U meeting the ends of the folding edge mentioned.
  • Such plastic packaging is particularly easy to manufacture, can be sealed well and tightly by the manufacturer or intermediate producer who fills the goods into the packaging and closes it; with the additional property that the end user can easily open the packaging through the line of weakness because he tears off the outer areas next to the line of weakness without the sealing seam present there having to be loosened or otherwise damaged.
  • a tear-off tab is attached to a flange, preferably next to the folded edge.
  • the tear-off tab can preferably be molded on.
  • the tear-off tab gives the end user a logical indication of where to start and how to start opening.
  • the tear-off tab makes it easier for the end user to open it, because the area of the tear-off tab is preferably 1 cm 2 to 2 cm 2 and can be gripped well between two fingers. With this tear-off tab, the not too high tear-off forces can be easily introduced into the outer areas of the packaging outside the line of curvature.
  • the tear-off tab is a widened field on a flange and is opposite a correspondingly widened field of an outer edge of the top wall.
  • the tear-off tab is formed from two layers which are connected to one another by a fold edge, the fold edge of the tear-off tab running in a line with the above-mentioned fold edge forming the hinge.
  • the one layer of the tear-off tab is the is integrally formed with the flange next to the side wall, a mirror image of the other position of the tear-off tab, which is formed on the outer edge of the upper wall.
  • Both layers of the tear-off tab, and thus these itself, are of course outside the weakening line, that is to say in the outer regions of the flange or the outer edge of the upper wall.
  • the bottom and the side walls are formed by deep drawing.
  • the entire packaging can be formed from a plate-shaped blank, which is preferably rectangular.
  • the folding edge forming the hinge can be thought to lie across the middle of the blank, with the result that one side is formed to the upper wall and the other side correspondingly opposite with respect to the folding edge is formed into a cup-shaped part.
  • the cup-shaped part then consists of the bottom and the four side walls projecting transversely to it in the case of the packaging of the embodiment explained above, in which the line of weakness lies in a U-shape next to the folded edge.
  • cup-shaped part can also be imagined in the case of such a package, the flanges of which are circular or oval in addition to the side walls arranged in the form of a cylinder jacket.
  • the cup-shaped part can be shaped very simply by deep drawing in a manner known per se.
  • the plastic material is a polypropene filled up to 70%, preferably with chalk, gypsum, talc or mica.
  • the plastic of the package according to the invention is a thermoformable plastic material, then this can be a thermoplastic, as mentioned above: polypropene.
  • PCV can also serve as such plastic, with polypropene also being widely known in the art as polypropylene.
  • the package according to the invention then consists of parts and materials that can be easily reprocessed and easily rotten.
  • the plastic material for example the polypropene, can also be filled, the materials mentioned above being the fillers.
  • filling levels of up to 70%, in some embodiments up to 60% have proven to be favorable. It has been shown that such filled plastic materials are easily rotten on the one hand, can of course also be easily reprocessed or recycled using simple methods and, on the other hand, do not impair the properties of a plastic, so that such filled plastic materials are particularly deep-drawable and also sealable.
  • the line of weakness can be opposite to the neighborhood be thinned line.
  • the method for producing a package of the type described above is characterized in that the top wall on the one hand and the side walls with the bottom on the other hand are formed by deep drawing at a temperature of 170 ° C to 250 ° C and at the same time the fold line and the from a flat plastic plate Line of weakness are formed.
  • the flat plastic plate is the blank of plastic material explained above, through the middle of which the folded edge is to be thought.
  • the top wall can be formed on one side of this folding edge by deep drawing or cold forming, while the cup-shaped part on the other side of the folding edge is formed together with the weakening line and other folding lines by deep drawing. In this way one has a low material consumption and practically no waste, so that a very cheap packaging results in the sense of the above invention.
  • the device for carrying out the method of the type described above has a first deep-drawn molded part with a cup-shaped depression and is characterized in that the first deep-drawn molded part also contains the shape for the upper wall in such a way that all depressions, recesses and / or raised parts of one Flat surrounding support edges are surrounded, on which a raised projecting edge is provided all around, preferably in the support edges lying in the plane.
  • Such a tool is also easy to manufacture, since it has the basic shape of a plate with a flat surface, on which the workpiece, that is to say the plastic blank, is placed and processed in the manner described. You can design the raised protruding edge as a knife and assemble it either in one piece or from several pieces.
  • the edge for forming the line of weakness preferably projects into this only by about 1/4 to 1/2 the thickness of the plastic blank, that is to say of the workpiece.
  • the weakening line in the plastic material according to the present invention is only a line for thinning the layer of the plastic material for easier tearing off. This allows one through the measures according to the invention create a sterile interior of the packaging.
  • the plastic material is pulled over the edge formed as a circumferential knife, which protrudes a little bit from the first deep-drawn molded part in the manner described above, and is merely deformed to create the line of weakness. So there is no cut through the plastic material of the knife.
  • the knife on the other hand, only thins the material in the area of the weakening line.
  • the plastic packaging according to the invention is used in a particularly advantageous manner for gas-tight and bacteria-tight packaging of filling goods, for example syringes in the clinical field.
  • a package can be easily opened by gripping the tear-off tab, because only the double-layered strip of plastic material that runs outside the weakening line needs to be torn off.
  • the plastic packaging shown in perspective in FIG. 1 consists of a cup-shaped part 1 with the side walls 2, 3, 4 and 5 and the bottom 16 on the one hand and the top wall 7 on the other hand.
  • FIG. 1 which is shown somewhat schematically here, there are four essentially flat side walls 2 to 5 and a flat bottom 16, which form the cup-shaped part 1, which has the shape of a tub.
  • flanges arranged approximately transversely to the respective side walls, namely the flat flange 2 'which is molded onto the side wall 2, the flange 3' which is molded onto the side wall 3 is the flange 4 'which is formed on the side wall 4 and the flange 5' which is on the side wall 5 is molded.
  • These four flanges 2 ', 3', 4 'and 5' lie in one plane.
  • a folding edge 6 which forms a hinge about which the top wall 7 can be pivoted relative to the cup-shaped part 1 in the direction of the curved arrow 8, which lies in one plane, which can be thought to lie parallel to the small side walls 3 or 5, that is to say perpendicular to the rear side wall 4 under the folded edge 4 '.
  • the top wall 7 has a connecting edge 9, which is located directly next to the folded edge 6 on the one hand; and three outer edges 10, 11 and 12 on the other hand. These outer edges 9 to 12 also merge into one another and lie in one plane as the flanges 2 'to 5', the flanges and the outer edges corresponding in shape and position in such a way that when the upper wall 7 is folded down onto the flanges 2 'to 5 'of the cup-shaped part 1, these flanges and the outer edges can be placed on top of one another and sealed together.
  • the upper wall 7 is approximately square, although the two free upper corners are rounded.
  • the slightly thicker line of weakness 14 runs in those flanges 5 ', 2' and 3 'of the side walls 5, 2 and 3 next to which there is not the folded edge 6 which connects the cup-shaped lower part 1 on the one hand and the upper wall 7 on the other.
  • the line of weakness 14 in the upper wall 7 extends in the outer edges 10, 11, 12 in such a way that when the upper wall 7 is folded down onto the flanges 5 ', 2', 3 'of the cup-shaped lower part 1 half of the line of weakness 14 of the upper wall comes to lie exactly on the other half of the weakening line 14 of the cup-shaped lower part.
  • the two free leg ends 15 and 16 'of which coincide with the ends of the folded edge 16.
  • a position of the tear-off tab 17 is formed on both the top wall 7 and the flange 3 'of the narrow side wall 3 in the form of a widening of the flange 3' or the outer edge 10.
  • the top wall 7 is folded down onto the flanges 5 ', 2 ', 3' the two layers of the tear-off tab 17 lie on top of one another and form the tear-off tab 17 which is clearly visible to the user in the finished product.
  • FIGS. 2 to 4 show the tool for producing the packaging shown in FIG. 1.
  • the tool has a rectangular plate 18, in the one part 19 of which is not shown in more detail, a cup-shaped depression can be provided in accordance with the desired design, and in the other, upper part 20 of which a smaller depression 21 is shown, which shows the elevation 22 (FIG 1) forms in the top wall 7 of the packaging.
  • FIG. 2 shows a view of the support edges 27 lying in one plane (paper plane), which define the plane surface 23 of the tool.
  • these support wheels 27 can be formed on the outside by a frame-shaped part 28, which is formed in one or more pieces and is attached by means of screws 29 to the main body of the deep-drawn molded part 18 by clamping the raised projecting edge 24.
  • a blank made of plastic as shown broken off at 26 in FIG. 4 and having the size of the deep-drawn molded part 18 of FIG. 2 in plan view, is placed on the supporting edges 27 in the preheated state as possible.
  • a counter jaw not shown
  • the plastic blank 26 By pressing on a counter jaw, not shown, and after correspondingly preheating the plastic blank 26, it is pulled over the knife-like edge (tip 25) of the circumferential edge denoted by 24 and pressed, so that the weakening line 14 is formed.
  • the folded edge 6 is formed along the middle line 30 shown in dotted lines in FIG. 2 ', and all the others are not added here either designated recesses, raised parts and also depressions (for example, the recess 21) formed.
  • the cup-shaped lower part 1 is formed by deep drawing, so that the bottom 16 and the side walls 2 to 5 with the flanges described above result.
  • the then deep-drawn and hardened blank represents a packaging open on one side, on one side wall 4 of which the top wall 7 can be folded down as a hinge via the folding edge 6. After appropriate sterilization of the interior and the inner surface of the top wall 7, sterile goods can be packed. Then the top wall 7 is folded down to the left in accordance with the curved arrow 8 and, after being closed, sealed along the dashed line (FIG. 1) 13. The sealing seam 13 is - likewise closed and all-round - in the flange parts or outer edges outside the weakening line 14. The sealing seam runs through the tear-off tab 17.
  • the packaging is therefore absolutely leak-proof and suitable for transport.
  • the tear-off tab 17 tears off the area of the flanges 2 ', 3', 5 'or the outer edges 10 to 12 of the top wall 7 together with the undamaged sealing seam 13.
  • the packaging can thus be opened with little effort so that the upper wall 7 can be folded up around the folded edge 6 in the direction of the curved arrow 8 to the right.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Closures For Containers (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
EP95112488A 1994-09-10 1995-08-09 Emballage en matériau plastique avec couvercle à charnière et procédé et dispositif pour sa fabrication Withdrawn EP0700836A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4432296 1994-09-10
DE19944432296 DE4432296A1 (de) 1994-09-10 1994-09-10 Kunststoffverpackung mit über eine Faltkante angelenkter Oberwand, Verfahren zur Herstellung derselben und Vorrichtung zur Durchführung des Verfahrens

Publications (2)

Publication Number Publication Date
EP0700836A2 true EP0700836A2 (fr) 1996-03-13
EP0700836A3 EP0700836A3 (fr) 1997-09-24

Family

ID=6527918

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95112488A Withdrawn EP0700836A3 (fr) 1994-09-10 1995-08-09 Emballage en matériau plastique avec couvercle à charnière et procédé et dispositif pour sa fabrication

Country Status (4)

Country Link
EP (1) EP0700836A3 (fr)
JP (1) JPH0885533A (fr)
CN (1) CN1127719A (fr)
DE (1) DE4432296A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8308008B2 (en) 2006-12-27 2012-11-13 Abbott Laboratories Container
US8469223B2 (en) 2009-06-05 2013-06-25 Abbott Laboratories Strength container
US8511499B2 (en) 2007-12-18 2013-08-20 Abbott Laboratories Container
US8627981B2 (en) 2009-06-05 2014-01-14 Abbott Laboratories Container
USD733320S1 (en) 2013-04-26 2015-06-30 Abbott Laboratories Container
US9387963B2 (en) 2012-04-27 2016-07-12 Abbott Laboratories Container

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19745444A1 (de) * 1997-10-15 1999-04-22 Tetra Laval Holdings & Finance Gebinde aus Halbschalen, Verfahren zur Herstellung einer Verpackung aus einem solchen Gebinde und Vorrichtung zur Herstellung des Gebindes
DE10017042B4 (de) * 2000-04-05 2004-09-30 Adolf Illig Maschinenbau Gmbh & Co.Kg Form-/Stanzwerkzeug zum Herstellen von Behältern aus einer thermoplastischen Kunststofffolie
DE20009821U1 (de) * 2000-05-31 2001-10-18 Gizeh Verpackungen Gmbh & Co K Behälter und Ziehform für den Behälter
DE102013204160A1 (de) * 2013-03-11 2014-09-11 Multivac Sepp Haggenmüller Gmbh & Co. Kg Verpackungsanlage mit Einraststation und Verfahren

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8308008B2 (en) 2006-12-27 2012-11-13 Abbott Laboratories Container
US8857645B2 (en) 2006-12-27 2014-10-14 Abbott Laboratories Container
US9505522B2 (en) 2006-12-27 2016-11-29 Abbott Laboratories Container
US10583969B2 (en) 2006-12-27 2020-03-10 Abbott Laboratories Container
US11554893B2 (en) 2006-12-27 2023-01-17 Abbott Laboratories Container
US8511499B2 (en) 2007-12-18 2013-08-20 Abbott Laboratories Container
US8469223B2 (en) 2009-06-05 2013-06-25 Abbott Laboratories Strength container
US8627981B2 (en) 2009-06-05 2014-01-14 Abbott Laboratories Container
US9387963B2 (en) 2012-04-27 2016-07-12 Abbott Laboratories Container
US10005596B2 (en) 2012-04-27 2018-06-26 Abbott Laboratories Container
USD733320S1 (en) 2013-04-26 2015-06-30 Abbott Laboratories Container
USD782696S1 (en) 2013-04-26 2017-03-28 Abbott Laboratories Container

Also Published As

Publication number Publication date
CN1127719A (zh) 1996-07-31
EP0700836A3 (fr) 1997-09-24
JPH0885533A (ja) 1996-04-02
DE4432296A1 (de) 1996-03-14

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