EP0121891B1 - Flan formant boîte d'emballage pour une feuille - Google Patents
Flan formant boîte d'emballage pour une feuille Download PDFInfo
- 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
Links
Images
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)
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)
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)
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 |
-
1983
- 1983-04-08 DE DE19838310351U patent/DE8310351U1/de not_active Expired
-
1984
- 1984-04-03 EP EP84103649A patent/EP0121891B1/fr not_active Expired
- 1984-04-03 DE DE8484103649T patent/DE3474434D1/de not_active Expired
- 1984-04-03 AT AT84103649T patent/ATE37693T1/de not_active IP Right Cessation
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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