EP0121891B1 - Flan formant boîte d'emballage pour une feuille - Google Patents

Flan formant boîte d'emballage pour une feuille Download PDF

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Publication number
EP0121891B1
EP0121891B1 EP84103649A EP84103649A EP0121891B1 EP 0121891 B1 EP0121891 B1 EP 0121891B1 EP 84103649 A EP84103649 A EP 84103649A EP 84103649 A EP84103649 A EP 84103649A EP 0121891 B1 EP0121891 B1 EP 0121891B1
Authority
EP
European Patent Office
Prior art keywords
edge
tear
teeth
side wall
container according
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
EP84103649A
Other languages
German (de)
English (en)
Other versions
EP0121891A3 (en
EP0121891A2 (fr
Inventor
Franz Vossen
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.)
Meurer Druck and Carton GmbH
Original Assignee
Meurer Druck and Carton GmbH
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 Meurer Druck and Carton GmbH filed Critical Meurer Druck and Carton GmbH
Priority to AT84103649T priority Critical patent/ATE37693T1/de
Publication of EP0121891A2 publication Critical patent/EP0121891A2/fr
Publication of EP0121891A3 publication Critical patent/EP0121891A3/de
Application granted granted Critical
Publication of EP0121891B1 publication Critical patent/EP0121891B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/08—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession
    • B65D83/0847—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession through an aperture at the junction of two walls
    • B65D83/0852—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession through an aperture at the junction of two walls with means for assisting dispensing
    • B65D83/0882—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession through an aperture at the junction of two walls with means for assisting dispensing and for cutting interconnected articles
    • 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/67—Containers, packaging elements or packages, specially adapted for particular articles or materials for web or tape-like material
    • B65D85/671—Containers, packaging elements or packages, specially adapted for particular articles or materials for web or tape-like material wound in flat spiral form
    • B65D85/672—Containers, packaging elements or packages, specially adapted for particular articles or materials for web or tape-like material wound in flat spiral form on cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/175—Plastic
    • B65H2701/1752—Polymer film

Definitions

  • the invention relates to a storage container for a film web according to the preamble of claim 1.
  • Packaging boxes of this type with linear tear-off edges attached to them as a separate part can be found, for example, in US Pat. No. 3,034,690 or US Pat. No. 3,531,032.
  • GB-A-1 282 045 also discloses a cuboid, elongated cardboard packaging box for holding a metal foil which can be separated in the region of a corrugated tear-off edge.
  • This slightly corrugated tear-off edge runs as a straight tear zone in the middle of a side wall of the packaging box.
  • tear-off edges are sufficiently effective with metal foils, which also applies to so-called corundum strips in DE-OS-2 927 195.
  • tear-off edges of the embodiment described remain completely inadequate when increasingly stretchable transparent films are used; these highly stretchable films deform over the waves mentioned, but this does not initiate the desired separation process. So far, it has not been possible to create an effective tear-off edge as an integral part of a packaging box made of cardboard, with which even highly stretchable films can be cut without problems. In this context, it should only be pointed out that such films, placed over a human hand, can be deformed into a glove without tearing.
  • the inventor has set the goal of equipping a storage container of the aforementioned simple cut type with a tear-off edge in such a way that even highly stretchable foils can be easily separated in sections in the usual way.
  • the course of the tear-off edge from a curve is determined as a geometric location for the tip of the teeth, the center of which lies approximately on the center line of the longitudinal center of the box, the tips of the teeth being formed by a triangle with an opening angle of approximately 40 ° are.
  • the tear-off edge is thus designed as a tooth edge curved in the pulling direction; this curvature allows the areas near the film edges to come into contact with only a few teeth, so that only a small film area has to be applied with the entire tensile force; if the outer teeth are in contact with the film, this only comes into contact with other teeth in the central area.
  • the latter have a certain shape to solve the above problem.
  • a further essential component of the invention is that the center lines of the triangular teeth run parallel to the direction of pull; it would be obvious to arrange those center lines perpendicular to the ridge lines, but this would lead to undesired component directions. It has been shown that the above-described direction of the center line of the triangular teeth offers optimal tear-off conditions.
  • More or less curved tear-off edges are known from BE-A-647 015 in the form of a wave-like strip molded onto a plastic container for paper. But even such blades are not suitable for separating even high-stretch foils into clean sections.
  • the tooth edge has at least two curved ridge lines running at a distance from one another as geometric locations for tooth tips, so that at least two curved so-called engagement zones are formed which are formed by those tooth tips.
  • the two - or more - ridge lines determine larger and shorter teeth which are arranged in alternation with one another, it having proven particularly advantageous to arrange the tips of these teeth in such a way that the film first pulls onto the tip of a large tooth in the pulling direction, then hits the tip of the adjacent large tooth and only then touches the tip of the small tooth in between. This considerably increases the mode of operation of the packaging box according to the invention for the purpose seen by the inventor.
  • the distance between the crease line delimiting the side wall on the one hand and the base line delimiting the tear-off edge in the direction of pull on the other side is less than half the height of the side wall; this eliminates the deflection of the central wall area at the tear-off edge, which is known from other packaging boxes and occurs when the train is pulled. As is known, this temporary deformation often leads to tearing of the side wall from the tear-off edge.
  • the tear-off edge defines a straight ridge line up to the center of the side wall or beyond, which is inclined to the direction of pull. It is also possible to have a straight tooth edge section inclined in this way merge into a curved part, for example near the center of the side wall.
  • a storage container of the type mentioned at the outset the side wall containing the tear-off edge being assigned a cutting strip which is designed to be divisible by at least one predetermined tear line into a corner flap and a pulling strip, this pulling strip before the storage container is put into use, i.e. before first access to the transparent film, on this - in particular on that side wall - is fixed.
  • This pull strip is separated by a short tensile stress and then releases the cover flap which is inserted into the interior of the box for use in the manner already described and then with the
  • the side wall containing the tear-off edge forms a through slot for the transparent film.
  • the cover flap can also be attached to the packaging box in a manner other than that described; of essential importance to the invention remains that it is shorter than the side wall containing the tear-off edge, so that it can be placed under pressure on the lid strips of the packaging box, at least at maximum diameter, of a film roll formed by the transparent film.
  • a permanent adhesive layer can be assigned to the free lower edge of the short cover flap, which adheres briefly to the transparent film when the cover flap is pressed down and, thanks to the restoring forces in the cover strip, lifts it so that a user can grasp the transparent film and bring it to the tear-off position.
  • the user therefore presses the lid strip of the packaging box down towards the inside of the box and releases it again briefly in order to achieve the lifting effect described.
  • the cut for a cuboid cardboard box 1 - or a box made of a corresponding material - for receiving a high-stretch transparent film 3 wound on a cardboard tube core 2 consists, according to FIG. 1, of a floor strip 4 with end walls 6 adjoining its top edges 5 and forming longitudinal edges 7 adjacent side walls 8, 9 on both sides.
  • the two side walls 8, 9 are provided along their head edges 10, which are formed by fold lines as the head edges 5, with fold tabs 11.
  • the one side wall 9 is separated from a cover strip 12 and this from an attached cover flap 13 by a fold line 14 and 15, respectively.
  • the blanking strips 8, 4, 9, 12 are i.w. of the same height h; the length of the cover flap 13 or of its free flap edge 16 in FIG. 1 is a dimension 2 - n slightly shorter than the length i of the cut strips 8, 4, 9, 12, that recess dimension n is between the side edges 17, 18 of Cover strip 12 and cover flap 13 can be seen.
  • the upper side wall 8 in FIG. 1 shows a toothed rim 20, which is part-circular around a center line M located on the center line M - and outside of the drawing sheet - which starts at both ends from the longitudinal edge 19 of the side wall 8 and whose base line S in that cutting line M.
  • Has vertex Z; its distance e from the adjacent longitudinal edge 7 forming a crease line is, for example, one third of the strip height h.
  • the size ratios become clear if one assumes the strip height h with, for example, 45 mm and the strip length i with, for example, 305 mm.
  • the tooth edge 20, shown enlarged and schematically in FIG. 2, is delimited towards the side wall 8 by that base line S.
  • a first ridge line K i runs at a radial distance a therefrom, to which a second ridge line K 2 can be seen in the radial distance b; these radial distances a, b are approximately the same length, the radii of the curved lines S, K 1 and K 2 in Fig. 1, 5 indicated by r s , r 1 and r 2 .
  • the first comb line K i is the geometric location of the tips 21 of short teeth 22 of the tooth edge 20. The latter alternate with larger teeth 24, the tips 23 of which determine the comb line K 2 .
  • the tips 23 of the large teeth 24 belong to small triangles 25, one of which is hatched in the right half of FIG. 2.
  • the side edges 26 of the triangle 25 enclose an angle w of 40 ° and extend to a line 27 which extends at a distance q from the tip 23 and from which side edge sections 26 a determine an inclusion angle w i of 60 ° which is larger than w .
  • the inclusion angle t of the short teeth 22 is 50 °.
  • the distances f lying horizontally in FIG. 2 between the tips 21, 23 of adjacent teeth 22, 24 are slightly larger than twice the distance q at the triangle 25 in the selected exemplary embodiment.
  • the distance g between two tips 23 of large teeth 24 obviously corresponds to twice the distance f.
  • the center lines N of the large teeth 24 and the center lines Q of the short teeth 22 run parallel to each other and are generally perpendicular to the longitudinal edges 7 and thus in the pulling direction x for the transparent film 3 of high elasticity.
  • a fold line 40 is formed between the two outer teeth 24 e in the drawing, on which when pulling in Direction x, the transparent film 3 is first scored by the outer teeth 24 e and then - in each case on both sides of the line of symmetry M - touches the following tooth 24 and then the outermost tooth 23 of the ridge line K 1 , which between the first two teeth 24 of the ridge line K 2 lies.
  • the transparent film 3 is perforated in steps from the film edges 41 to the inside.
  • the transparent film 3 is completely severed when the tooth 24 assigned to the vertex Z has started to operate. It is clear that the described position of the center lines N, Q in the pulling direction x which is essential for the tear-off process has a considerable influence on the separating action.
  • Fig. 4 illustrates an embodiment with a straight ridge line R, which - with the line 40 following the course of the omitted longitudinal edge of the side wall 8 - includes an angle of inclination y of approximately 12 °.
  • the tip areas determined by the triangles 25 are additionally impregnated with a hardener.
  • blank 32 in FIG. 6 recognizable cardboard box 31 includes the cover strip 12 to a trim strip 33 which is fitted to the tab edge 16 with a predetermined tear line 34 at a distance c (3 h z. B. 1 /). This ends at gusset-like edge incisions 35 and divides the blanking strip 33 into a cover flap 13 , which is narrower than FIG. 1 ; and a drawstring 36 just that width c.
  • a rectangular multilayer flap 44 comprising a double-sided adhesive strip 45 and a protective strip 46 covering it is glued over the predetermined tear line 34.
  • the double-sided adhesive strip 45 has a separating cut 47 above the predetermined tear line 34, so that when pulling on the tapering grip end 37 of the pull strip 36 which is tacked to the side wall 8 and can thus be detached therefrom, the predetermined tear line 34 is severed and with the pull strip 36 that of the separating line 47 limited sections 45 a of the double-sided adhesive strip 45 including protective strip 46 is lifted off (FIG. 8). A narrow, slightly adhesive adhesive strip then remains on the cover flap 13 for 45 hours .
  • the cover strip 12 can be pressed onto the film wrap 3 w by the indicated finger of a user - or the bottom edge 34 1 of the flap can be placed on the box bottom 4 - and the transparent film 3 then hanging on the adhesive strip 45 h can be raised into the pulling position shown in FIG. 10. This is particularly advantageous when the pulling end 39 of the transparent film 3 has crept into the cardboard box 31 after a long period of rest.
  • cover strip 12 has returned to the pulling position according to FIG. 10 after the described capturing of the transparent film 3 and its release, the user can grip the pulling end 39 and place it around the tooth edge 20 in the manner already discussed. Then the cover strip 12 is transferred again by the user's finger into the tear-off position according to FIG. 11; it arises between the tooth edge 20 and the lower edge 34 ; of cover flap 13 j a certain tension, which favors the tear-off process.
  • the adhesion of the transparent film 3 to the adhesive strip 45 h is not so great that this could be a hindrance during the tear-off process.
  • the adhesive strip has remained 45 h in total on the cover flap 13 j , which has a strip-like formation 50 in the vicinity of that adhesive strip 45 h , which offers the lower edge 34 j .
  • the pull strip 36 already removed in FIG. 9 is designed accordingly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Packages (AREA)

Claims (12)

1. Récipient pour une feuille (3) en forme d'une boîte d'emballage (1, 31) avec fond (4), paroi arrière (9), couvercle (12) et paroi latérale (8) et avec une arête de rupture (20) qui se trouve entre deux parois frontales (6) et présente des dents (24) se terminant en triangle, destinée à couper la feuille qui peut être menée à travers de celle-ci en tirant à la fin libre de la feuille, l'axe (N) des dents (24) étant à peu près perpendiculaire comparé à l'arête de boîte voisine (7), caractérisé en ce que l'allure de l'arête de rupture (20) est déterminée par une ligne de courbure (K2) comme lieu géométrique pour les pointes (23) des dents (24) dont le centre se trouve à peu près sur la ligne médiane (M) du milieu longitudinal de la boîte et que les pointes (23) des dents (24) sont constituées d'un triangle (25) avec un angle d'ouverture (W) d'environ 40°.
2. Récipient selon la revendication 1, caractérisé en ce que la base (27) du triangle (25) détermine des deux côtés des points de brisure dans les côtés latérales (26) de la dent (24) et que l'angle d'ouverture (wi) se formant entre les sections d'arêtes (26a) est d'environ 60°.
3. Récipient selon la revendication 2, caractérisé en ce que la distance (a) entre la base (27) limitant la paroi latérale (8) et liant les points de brisure et une ligne de socle (S) limitant l'arête de rupture (20) est, dans son point culminant (Z) inférieure à la moitié de l'hauteur (h) de la paroi latérale (8).
4. Récipient selon une des revendications 1 à 3, caractérisé en ce que l'arête de rupture (20) présente au moins deux lignes de crête courbes (Ki, K2) se trouvant à distance (b) l'une par rapport à l'autre comme lieux géométriques pour les pointes (21, 23) de dents longues et courtes (24, 22) placées de manière alternante dans l'arête de rupture (20).
5. Récipient selon la revendication 4, caractérisé en ce que entre les arêtes latérales voisines d'une grande dent et d'une petite dent (24, 22) un contour de cercle gradué détermine le fond du creux de la dent dont le rayon est un peu inférieur à la distance (b) des lignes de crête (K1, K2) l'une par rapport à l'autre.
6. Récipient selon la revendication 4 ou 5, caractérisé en ce que l'angle d'inclusion et d'ouverture (t) entre les arêtes latérales de la dent courte (22) est d'environ 50°.
7. Récipient selon une des revendications 4 à 6, caractérisé en ce que les pointes (23) de deux grandes dents voisines (24) sont plus proches l'une par rapport à l'autre parallèlement à l'arête latérale que la pointe de la dent (24) qui est touchée la première lors de la traction à la feuille par rapport à la pointe (21) de la petite dent (22) se trouvant entre les deux grandes dents.
8. Récipient selon une des revendications 1 à 7, caractérisé en ce que au moins la zone entre l'arête latérale (26) de la dent (22 ou 24) partant de la pointe (21 ou 23) est traitée avec un durcisseur.
9. Récipient selon au moins une des revendications 1 à 8, caractérisé en ce que l'arête de rupture (20) est partie d'une seule pièce de la paroi latérale (8) et que son allure est déterminée par une ligne droite (R) partant d'un petit côté de la paroi latérale (8), et étant placée d'un angle aigu (y) à son arête longitudinale (40) ainsi que par la/les ligne(s) courbe(s) (Ki, K2) s'y rattachant vers le centre longitudinal (M) de la boîte comme lieux géométriques pour les pointes (21, 23) des dents (22, 24).
10. Récipient selon au moins une des revendications 1 à 9, caractérisé en ce que la fin de la ligne crête (K2) avant, vu de la direction de traction (x), est prévue à l'arête longitudinale (19) de la paroi latérale (8) et que le point culminant (Z) d'une ligne de socle (S) déterminant le fond des creux de la dentse trouve sur la ligne médiane (M) d'une distance (e) par rapport à l'arête voisin (7), la longueur d'arête (i) de la boîte d'emballage (1, 31) correspondant de préférence au vingtuple de la distance (e), la hauteur (h) de la paroi latérale (8) correspondant au plus ou double de la distance (e).
11. Récipient selon au moins une des revendications 1 à 10, caractérisé en ce que l'hauteur (hi) de la languette de couvercle (13;) est inférieure à l'hauteur (h) de la paroi latérale (8) contenant l'arête de rupture (20), que la paroi latérale (8) de la boîte d'emballage (31) contenant l'arête de rupture (20) possède une pièce découpée (33) qui présente au moins une ligne destinée à la rupture (34) ou une chose semblable se partageant en languette de couvercle (13j) et bande de traction (36), la bande de traction étant fixée à la boîte d'emballage avant l'usage de celle-ci.
12. Récipient selon la revendication 11, caractérisé en ce que sur la face extérieure de la languette de couvercle (13j) et la bande de traction (33) se trouve une couche d'adhérence (45h) partagée à la ligne destinée à la rupture (34) moyennant une coupe (47), cette couche étant jetée d'une bande de protection (46) qui est le cas échéant liée de manière fixe à la section (45a) de la couche d'adhérence (45h) se trouvant sur la bande de section (36).
EP84103649A 1983-04-08 1984-04-03 Flan formant boîte d'emballage pour une feuille Expired EP0121891B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84103649T ATE37693T1 (de) 1983-04-08 1984-04-03 Verpackungsschachtel als aufbewahrungsbehaelter fuer eine folienbahn.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8310351U 1983-04-08
DE19838310351U DE8310351U1 (de) 1983-04-08 1983-04-08 Verpackungsschachtel als aufbewahrungsbehaelter fuer eine folienbahn

Publications (3)

Publication Number Publication Date
EP0121891A2 EP0121891A2 (fr) 1984-10-17
EP0121891A3 EP0121891A3 (en) 1985-10-23
EP0121891B1 true EP0121891B1 (fr) 1988-10-05

Family

ID=6752067

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84103649A Expired EP0121891B1 (fr) 1983-04-08 1984-04-03 Flan formant boîte d'emballage pour une feuille

Country Status (3)

Country Link
EP (1) EP0121891B1 (fr)
AT (1) ATE37693T1 (fr)
DE (2) DE8310351U1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8327621U1 (de) * 1983-09-27 1983-12-29 Melitta-Werke Bentz & Sohn, 4950 Minden Zu einer rolle aufgewickelte folienbahn
GB2162816A (en) * 1984-08-10 1986-02-12 Shorewood Packaging Co Limited Film dispenser
AU7565696A (en) * 1995-11-09 1997-05-29 Maurizio Graffei Pack for films for domestic use, in polyethylene, aluminium, ovenproof paper and the like, wound on a roll

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3034690A (en) * 1958-04-10 1962-05-15 Union Carbide Corp Film dispensing carton
FR1365349A (fr) * 1963-04-27 1964-07-03 Appareil pour débiter en feuillets un rouleau de papier ou de tout autre matière analogue
US3531032A (en) * 1967-10-03 1970-09-29 Reynolds Metals Co Container and blank for making same
US3933288A (en) * 1974-11-15 1976-01-20 Diamond International Corporation Dispensing carton with cutting edge
US4307828A (en) * 1980-06-19 1981-12-29 The Dow Chemical Company Dispensing carton

Also Published As

Publication number Publication date
DE3474434D1 (en) 1988-11-10
EP0121891A3 (en) 1985-10-23
EP0121891A2 (fr) 1984-10-17
DE8310351U1 (de) 1983-11-10
ATE37693T1 (de) 1988-10-15

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