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EP 0 303 581 B1 |
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EUROPEAN PATENT SPECIFICATION |
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Mention of the grant of the patent: |
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02.01.1992 Bulletin 1992/01 |
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Date of filing: 05.07.1988 |
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International Patent Classification (IPC)5: B65D 5/66 |
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A package
Verpackung
Emballage
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Designated Contracting States: |
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AT BE CH DE ES FR GB GR IT LI LU NL |
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Priority: |
13.07.1987 SE 8702847
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Date of publication of application: |
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15.02.1989 Bulletin 1989/07 |
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Proprietor: AB AKERLUND & RAUSING |
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S-221 01 Lund (SE) |
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Inventors: |
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- Ström, Göran
S-225 90 Lund (SE)
- Axelsson, Owe
S-222 32 Lund (SE)
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Representative: Graudums, Valdis et al |
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Albihn Holmqvist AB,
Box 142 S-401 22 Göteborg S-401 22 Göteborg (SE) |
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References cited: :
GB-A- 1 270 201 US-A- 4 583 679
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US-A- 4 289 239
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| Note: Within nine months from the publication of the mention of the grant of the European
patent, any person may give notice to the European Patent Office of opposition to
the European patent
granted. Notice of opposition shall be filed in a written reasoned statement. It shall
not be deemed to
have been filed until the opposition fee has been paid. (Art. 99(1) European Patent
Convention).
|
[0001] The present invention relates to a folding box consisting of a single blank having
four side wall panels, a joint panel and a bottom and a top closure, said top closure
being arranged for forming an overlapping lid having a collar and comprising end flaps
integral with the side wall panels, one of said end flaps being of a size such that
when the box is assembled said flap is larger than, and completely covers, the thus
formed folding box mouth.
[0002] A folding box having the above-mentioned features is known from, for example, US-A-4289239.
In said American patent specification, access to the contents of the box is gained
by breaking lines of weakness extending around a collar on three sides of the container's
overlapping lid, which lid is then hinged along a fold line thereof to the rear wall
of the box and is pivoted about said fold line.
[0003] However, there is a need for a controlled pouring out of the contents of the package,
i.e. it is desirable to be able to determine the pouring volume with a certain degree
of accuracy and the pouring out of a too large filling volume in one step is not desirable.
[0004] An arrangement to help control the outflow of the contents of a package is described
in US-A-4583679. In this document, an open-ended paperboard package is produced whose
open end is sealed with a thin membrane. To this thus sealed end a centrally hinged,
overlapping lid is affixed. Accordingly, on account of the centrally hinged lid, only
one half of the lid is lifted when it is desired to gain access to the contents of
the package. A disadvantage with such a package is, however, the need to produce two
separate blanks, i.e. one for the package itself and the other for the lid.
[0005] Previously, other folding boxes have been equipped with special pouring spout structures,
such a one comprises a metal spout and another one uses a punched out flap in a folding
box corner which when folded out forms a pouring spout.
[0006] Both structures, however, mean tampering of the tightness because the folding box
wall is broken through.
[0007] The present invention provides a more favourable alternative to the above and provides
a folding box consisting of a single blank having four side wall panels, a joint panel
and a bottom and a top closure, said top closure being arranged for forming an over-lapping
lid having a collar and comprising end flaps integral with the side wall panels, one
of said end panels being of a size such that when the box is assembled said flap is
larger that, and completely covers, the thus formed folding box mouth.
[0008] The folding box is characterised in that said end flap is integral with a side wall
via two sub panels, the one distal relative the side wall defining the collar height,
and in that said end flap is provided with a tearing and folding denotation extending
from the region of at least one folding box corner and having a first portion generally
parallel to the top closure, at the collar height defining distance from the plane
thereof, and a second portion following on from the first one and extending cross-wise
the top closure up to a free edge of the end flap for forming a reclosable closure
that exposes a folding box cross-section less than the total folding box mouth area.
[0009] Further embodiments of the present invention are detailed in the dependent claims.
[0010] The invention will now be exemplified by reference to the accompanying drawings,
where
- Fig. 1
- shows the inside of a planar folding box blank,
- Fig. 2
- shows the blank in Fig. 1 after erection of the folding box part,
- Fig. 3
- shows the same folding box after closing the folding box mouth by a membrane and after
forming an overlapping lid,
- Fig. 4
- shows the folding box manufactured from the blank in Fig. 5 after the box has been
erected, closed and again opened, and
- Fig. 5
- shows an alternative embodiment of the blank.
[0011] The blank is Fig. 1 comprises four side wall 10, 11, 12 and 13 and a joint flap 13a.
Integral with said side wall panels there are end flaps 14, 15, 16 and 17 at one end
of the blank and end flaps 14′, 15′, 16′ and 17′ at the other end of the blank.
[0012] In a manner knows per se, the panels are delimited from each other by creasing lines
18, 19, 20, 21, 22, 23, 24, 25 and 26.
[0013] The creasing line 18 forms the border between the side wall panel 11 and the end
panel 14 which has dimension larger than the folding box cross-section of the erected
folding box as shown in for instance Fig. 2.
[0014] The subpanel 27 of the end flap 15 is, as also appears from Fig. 2, designed for
being folded down and attached against the outside of the panel 11.
[0015] After having folded also the panels 28, 29. 30. 31, 32, 33, 34 and 35 90° relative
the proper closure panel 36, the shape according to Fig. 3 is obtained, where a membrane
37 also has been shown sealed onto the flaps 14, 16 and 17 that have been folded out
horizontally.
[0016] Between the panels 27 and 28, i.e. at the collar height defining level on Figs. 2
and 3 there is a punched out region 37, which at a short distance from the corner
region 38 of the folding box is terminated by an initial breaking through region 39.
Thus, this region is the one and only region which at the beginning keeps the overlapping
cover in place on the folding box after the completed closure has been attached to
the folding box.
[0017] In Fig. 4 the region 39 is shown broken through and the closure partially opened
along a perforation line 40 inclined relative the corner 38 and along a folding denotation
41, (Fig. 2) cross-wise the closure. This folding denotation is terminated in a perforation
42 at the opposite folding box side corresponding to the perforation 40. By this inclination
of perforations, it becomes possible to open the closure 43 an angle larger than 90°
relative the plane of the folding box mouth. It is also intended to maintain the side
walls 44 of the closure 43 inside the folding box walls for providing a pouring spout
function as mentioned at the introduction.
[0018] The punch out region 37 may for instance, be continued by a weakening denotation
45 if the total removal of the closure is desired.
[0019] In Fig. 1 the self-latching function of the reclosable closure is obtained by tearing
away a subflap 16c whereafter the remaining remote flap latches against the joint
flaps 33, 35.
[0020] In Fig. 5 the sideflaps 33 and 35a are somewhat modified and latchable against a
short flap 16c. The elements of Fig. 5 which correspond to those of the first embodiment
are denoted with the suffix "a" for clarity of comparison.
[0021] Although specific embodiments of the invention have been described, it is realized
that modifications and alternatives are possible within the scope of the accompanying
claims.
1. A folding box consisting of a single blank having four side walls panels (10, 11,
12, 13) a joint panel (13a) and a bottom and a top closure (14′, 15′, 16′, 17′; 14,
15, 16, 17), said top closure being arranged for forming an overlapping lid (43) having
a collar and comprising end flaps integral with the side wall panels, one (15) of
said end flaps being of a size such that when the box is assembled said flap is larger
than, and completely covers, the thus formed folding box mouth, characterized in that
said end flap (15) is integral with a side wall via two sub panels (27, 28), the one
(28) distal relative the side wall defining the collar height, and in that the said
end flap (15) is provided with a tearing and folding denotation (39, 37, 40, 41, 42)
extending from the region of at least one folding box corner (38) and having a first
portion (37) generally parallel to the top closure, at the collar height defining
distance from the plane thereof, and a second portion (40, 41, 42) following on from
the first one and extending cross-wise the top closure up to a free edge of the end
flap (15) for forming a reclosable closure (43) that exposes a folding box cross-section
less than the total folding box mouth area.
2. A folding box as in claim 1, characterized in that said first portion (37) of the
tearing and folding denotation comprises a punched out section terminated by a short
bridge of material (39) acting as an initial breaking through portion in a direction
towards the said corner (38).
3. A folding box as in claim 2, characterized in that the second end portion of the
cut-out section merges into a tearing denotation (40) in the collar inclined towards
said corner.
4. A folding box as in claim 3, characterized in that the opposite side of the collar
has a corresponding inclined tearing denotation (42).
5. A folding box as in claim 4, characterized in that said inclined tearing denotation
cooperates with a folding denotation acting as a hinge (41) for the closure.
6. A folding box as in claim 5, characterized in that the part of the collar opposite
to the hinge is designed for providing a latching function together with an end flap.
7. A folding box as in any one or any of the preceding claims, characterized in that
the closure has a portion thereof which can act as a pouring spout defined by said
tearing and folding denotations (37, 40, 41, 42).
8. A folding box as in any one or any of the preceding claims, characterized in that
the folding box is provided with at least one membrane sealed to a set of end flaps.
9. A folding box as in claim 1, characterized in that the first portion (37) of said
tearing and folding denotation has a further portion (45) substantially rectilinear
with the first and extending the whole way up to the next folding box corner.
1. Faltschachtel, bestehend aus einem einzigen Zuschnitt mit vier Seitenwandfeldern
(10, 11, 12, 13), einem Verbindungsfeld (13a) und einem Verschlußboden und einem Verschlußdeckel
(14′, 15′, 16′, 17′; 14, 15, 16, 17), wobei der Verschlußdeckel zur Bildung eines
überlappenden Dekkels (43) vorgesehen ist, der einen Rand besitzt und einstückig mit
den Seitenwandfeldern gebildete Endklappen aufweist, wobei eine (15) der Endklappen
eine solche Größe besitzt, daß nach Zusammenbau der Schachtel diese Klappe größer
ist als die so gebildete Faltschachtelöffnung und diese vollständig abdeckt, dadurch
gekennzeichnet, daß die Endklappe (15) einstückig mit einer Seitenwand über zwei Nebenwände
(27, 28) gebildet ist, von denen eine, die fern bezüglich der Seitenwand liegt, die
Randhöhe bildet, und daß die Endklappe (15) mit einer Reiß- und Faltangabe (39, 37,
40, 41, 42) versehen ist, welche sich von dem Bereich von wenigstens einer Faltschachtelecke
(38) erstreckt und einen ersten Abschnitt (37), der in etwa parallel zu dem Verschlußdeckel
in der die Randhöhe definierenden Entfernung von deren Fläche verläuft, und einen
zweiten Abschnitt (40, 41, 42) aufweist, der sich an den ersten anschließt und sich
quer über den Verschlußdeckel bis zu einem freien Rand der Endklappe (15) zur Bildung
eines wiederverschließbaren Verschlusses (43) erstreckt, der einen Faltschachtelquerschnitt
freigibt, der geringer ist als der gesamte Faltschachtelöffnungsbereich.
2. Faltschachtel nach Anspruch 1, dadurch gekennzeichnet, daß der erste Abschnitt
(37) der Reiß- und Faltangabe einen ausgestanzten Abschnitt besitzt, der in einer
kurzen Materialbrücke (39) mündet, welche als Anfangsdurchbrechabschnitt in einer
Richtung auf die Ecke (38) fungiert.
3. Faltschachtel nach Anspruch 2, dadurch gekennzeichnet, daß der zweite Endabschnitt
des ausgeschnittenen Abschnitts in eine Reißangabe (40) in dem Rand eindringt, die
in Richtung auf die Ecke geneigt ist.
4. Faltschachtel nach Anspruch 3, dadurch gekennzeichnet, daß die gegenüberliegende
Seite des Randes eine entsprechende geneigte Reißangabe (42) besitzt.
5. Faltschachtel nach Anspruch 4, dadurch gekennzeichnet, daß die geneigte Reißangabe
mit einer Faltangabe zusammenwirkt, welche als ein Schwenkgelenk (41) für den Verschluß
fungiert.
6. Faltschachtel nach Anspruch 5, dadurch gekennzeichnet, daß der dem Schwenkgelenk
gegenüberliegende Abschnitt des Randes für eine Verriegelungsfunktion zusammen mit
einer Endklappe ausgebildet ist.
7. Faltschachtel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß
ein Abschnitt des Verschlusses, der als Gießtülle fungieren kann, durch die Reiß-
und Faltangaben (37, 40, 41, 42) gebildet ist.
8. Faltschachtel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß
die Faltschachtel mit wenigstens einer an einer Gruppe von Endklappen gesiegelten
Membran versehen ist.
9. Faltschachtel nach Anspruch 1, dadurch gekennzeichnet, daß der erste Abschnitt
(37) der Reiß- und Faltangabe einen weiteren Abschnitt (45) besitzt, der im wesentlichen
rechtwinklig zu dem ersten verläuft und sich über die ganze Entfernung bis zur nächsten
Faltschachtelecke erstreckt.
1. Boîte pliante consistant en une seule ébauche comportant quatre panneaux de parois
latérales (10, 11, 12, 13), un panneau de jonction (13a) et des fermetures inférieure
et supérieure (14′, 15′, 16′, 17′; 14, 15, 16, 17), ladite fermeture supérieure étant
agencée pour former un couvercle chevauchant (43) ayant un col et comprenant des rabats
extrêmes solidaires des panneaux de parois latérales, l'un (15) desdits rabats extrêmes
étant d'une taille telle que, lorsque la boîte est assemblée, ledit rabat est plus
grand que l'ouverture de boite pliante ainsi formée et recouvre complètement celle-ci,
caractérisée en ce que ledit rabat extrême (15) est solidaire d'une paroi latérale
par l'intermédiaire de deux sous panneaux (27, 28), le panneau (28) distal par rapport
à la paroi latérale définissant la hauteur du col, et en ce que ledit rabat extrême
(15) est muni d'une marque de déchirure et de pliage (39, 37, 40, 41, 42) qui s'étend
depuis la région d'au moins un coin (38) de la boîte pliante et qui comporte une première
partie (37) généralement parallèle à la fermeture supérieure, à une distance du plan
de celle-ci qui définit la hauteur du col, et une seconde partie (40, 41, 42) qui
suit la première et qui s'étend transversalement à la fermeture supérieure jusqu'à
un bord libre du rabat extrême (15) pour former une fermeture (43) refermable qui
expose une section transversale de la boite pliante plus petite que l'aire totale
de l'ouverture de la boite pliante.
2. Boîte pliante selon la revendication 1, caractérisée en ce que ladite première
partie (37) de la marque de déchirure et de pliage comprend une section découpée terminée
par un court pont de matière (39) faisant office de partie d'ouverture initiale en
direction dudit coin (38).
3. Boîte pliante selon la revendication 2, caractérisée en ce que la seconde partie
extrême de la section découpée débouche dans une marque de déchirure (40) du col inclinée
vers ledit coin.
4. Boîte pliante selon la revendication 3, caractérisée en ce que le côté opposé du
col comporte une marque de déchirure (42) inclinée correspondante.
5. Boîte pliante selon la revendication 4, caractérisée en ce que ladite marque de
déchirure inclinée coopère avec une marque de pliage agissant comme une charnière
(41) pour la fermeture.
6. Boîte pliante selon la revendication 5, caractérisée en ce que la partie du col
opposée à la charnière est conçue pour remplir une fonction de verrouillage en même
temps qu'un rabat extrême.
7. Boîte pliante selon l'une quelconque des revendications précédentes, caractérisée
en ce que la fermeture comporte une partie qui peut agir comme un bec verseur défini
par lesdites marques de déchirure et de pliage (37, 40, 41, 42).
8. Boîte pliante selon l'une quelconque des revendications précédentes, caractérisée
en ce que la boîte pliante est munie d'au moins une membrane scellée à une série de
rabats extrêmes.
9. Boîte pliante selon la revendication 1, caractérisée en ce que la première partie
(37) de ladite marque de déchirure et de pliage comporte une autre partie (45) sensiblement
rectiligne avec la première et s'étendant jusqu'au coin suivant de la boîte pliante.