Note: Descriptions are shown in the official language in which they were submitted.
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SLEEVE-SHAPED OUTER PART, COMBINATION PACKAGING CONTAINER
EQUIPPED THEREWITH, AND METHOD FOR SEPARATING THE COMBINATION
PACKAGING CONTAINER
The invention to a combination packaging container formed from an inner
container and an
outer part. However, the invention also further relates to a method for
manufacturing the com-
bination packaging container and a method for separating the combination
packaging con-
tainer into its inner container and the outer part by separating the
overlapping region of the
outer part.
WO 2020/245148 Al shares the same applicant and describes a generic, sleeve-
shaped outer
part formed from a blank cut, wherein the blank cut is wound to form a jacket
and its end por-
tions are connected to each other in an overlapping region. A target
separation region com-
prises an actuating means with a detection portion for separating separating
portions located
on both sides. As seen in the circumferential direction, the detection portion
is arranged at dis-
tance laterally with an offset in relation to the separating portions, which
are aligned so as to
taper toward one another, and an imagined straight connecting line
therebetween. An individ-
ual target separation portion is formed in the jacket of the outer part
between each detection
portion end and a respective end of the separating portions. The lower end
face of the outer
part facing the closed end of the inner container is supported on a supporting
shoulder, which
projects radially outwards, thereby achieving a form-fitting, mutual hold
between the outer
part and the inner container. The outer part may detach from the inner
container in an undesir-
able manner because of manufacturing inaccuracies caused by tolerance, a
temperature
change and/or moisture absorption of the blank cut preferably formed from a
cellulose mate-
rial.
Further packaging containers are known from EP 1 634 811 Al, US 2009/214887
Al, US
2008/105582 Al, WO 2014/098888 Al, US 8 185 578 A, JP H02 153974 A, US 8 387
857
B2 and US 2012/205430 Al.
It was an object of the present invention to overcome the disadvantages of the
prior art and to
provide a combination packaging container, comprising a cup-shaped inner
container with a
sleeve-shaped outer part surrounding it, in which the sleeve-shaped outer part
can easily be
removed from the inner container for recycling purposes.
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According to the invention, a blank cut for an outer part is provided to
encase a cup-shaped
inner container, wherein the inner container has a container jacket, which has
an open end and
a closed end with a bottom,
wherein the blank cut has a first end portion and a second end portion, an
adhesive layer made
of an adhesive being arranged on the first end portion and/or on the second
end portion,
wherein the blank cut can be wound into a jacket and wherein the first end
portion and the
second end portion can be coupled to one another in an overlapping region by
means of the
adhesive layer of the adhesive,
wherein the blank cut further has a first end face and a second end face and
the two end faces
are spaced apart from one another.
The adhesive layer is configured such that the first end portion and the
second end portion can
be detached from one another again from the coupled state in the overlapping
region.
The blank cut according to the invention offers the surprising advantage of
improved separa-
tion of a ,combination packaging container wrapped with the blank cut by means
of a detacha-
ble adhesive layer.
In a first embodiment, it can be provided that the blank cut is formed as one
piece. Further-
more, it is also conceivable for the blank cut itself to be formed from
several parts, these indi-
vidual parts of the blank cut also being able to adhere to one another by
means of an adhesive
layer.
Furthermore, it can be expedient for the blank cut to have a multilayer,
composite structure,
wherein a support layer, in particular made of a cellulose material, is formed
and wherein a
printing layer is arranged on the support layer at least in sections and
wherein a sealing layer
is formed at least in sections, wherein the printing layer is arranged at
least in sections be-
tween the support layer and the sealing layer, wherein the adhesive layer is
arranged on the
sealing layer. The offers the advantage that the printing layer can furnish
the blank cut or sub-
sequently a combination packaging container wrapped with the blank cut with a
desired de-
sign. The sealing layer can protect the printing layer or the support layer
from environmental
influences. Furthermore, the multilayer composite structure offers the
surprising advantage
that the first end portion and the second end portion can be detached
particularly well in the
overlapping region when a blank cut is applied to the combination packaging
container, re-
sulting in improved separability of the combination packaging container.
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A support layer tensile strength between 2N/mm2 and 20N/mm2, in particular
between
5N/mm2 and 15N/mm2, preferably between 8N/mm2 and 12N/mm2 can further be
provided.
Further layers may be present between the individual layers or in addition to
the individual
layers.
Furthermore, it is also conceivable for the sealing layer to be partially
recessed or interrupted
in the region of the adhesive layer, so that the adhesive layer can bond
directly to one of the
layers below the sealing layer.
In particular, it can be provided that the sealing layer forms the outer
surface of the blank cut
or of the outer part. This measure offers the advantage of protecting the
outer part from envi-
ronmental influences. In addition, this measure surprisingly offers
particularly good separabil-
ity of a combination packaging container wrapped with the blank cut.
Furthermore, it can be provided that the sealing layer is formed from a heat-
resistant lacquer.
The heat resistance can be present up to a maximum temperature between 160 C
and 300 C.
It can be particularly provided that a lacquer is selected, which can be
exposed to a tempera-
ture of 180 C to 200 C over a period of 15 min. to 20 min. without destroying
the lacquer
film. This measure offers the advantage of creating a sealing layer, onto
which a hot-melt ad-
hesive can be applied without the hot-melt adhesive melting the sealing layer,
thereby im-
proving the detachability of the adhesive layer.
In particular, it can be provided that the adhesive layer can be peeled off
the sealing layer
without leaving residue or causing damage.
The lacquer can be particularly provided in water-based form. Furthermore, the
lacquer in a
printing machine can be transferred to a lacquering plate via a chamber doctor
system -a pres-
surised chamber - via an anilox roller. The lacquer can be applied with a
specific grammage
of 0.5g/cm2 to 1.5g/cm2, in particular 0.8g/cm2 to 1.2g/cm2, preferably
0.95g/cm2 to
1.05g/cm2.
It can further be provided that, the printing layer is recessed in the region
of the adhesive layer
in the region of the first end portion, in particular that the sealing layer
is arranged directly on
the support layer in this region. This measure offers the surprising advantage
of the adhesive
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layer being more easily detached from the first end portion of the blank cut,
resulting in im-
proved separability of the combination packaging container.
In particular, it can be provided that the printing layer recess extension is
smaller than the
overstretching of the overlapping region. This results in the visible surface
of the outer part of
the combination packaging container being able to have optical representation
in its entirety
on its outer surface.
In particular, it can be provided that the pressure recess has a recess depth
and the overlap has
an overlap depth, wherein the recess depth is smaller than the overlap depth.
According to the invention, an outer part is configured to encase a cup-shaped
inner container,
wherein the inner container has a container jacket that has an open end and a
closed end with
a bottom, wherein the outer part is formed from a blank cut, said blank cut
having a first end
portion and a second end portion, wherein the blank cut is wound into a
jacket, thereby cou-
pling the first end portion and the second end portion to one another in an
overlapping region
by means of an adhesive layer made of an adhesive, wherein the outer part
further has a first
end face and a second end face and the two end faces are spaced apart from one
another. The
adhesive layer is configured such that the first end portion and the second
end portion can be
detached from one another in the overlapping region.
The outer part according to the invention offers the surprising advantage in
that it improves
the separability of a combination packaging container wrapped with the outer
part by using a
releasable adhesive layer.
In a first embodiment, it can be provided that the outer part is formed as one
piece. Further-
more, it is also conceivable for the outer part to be formed from several
parts, these individual
parts of the outer part also being able to adhere to one another by means of
an adhesive layer.
A combination packaging container is provided in accordance with the
invention. The combi-
nation packaging container comprises:
- a cup-shaped inner container, wherein the inner container has a container
jacket having an
open end and a closed end with a bottom
- an outer part, which encases the inner container
wherein the outer part is formed from a blank cut, said blank cut having a
first end portion and
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a second end portion, wherein the blank cut is wound into a jacket and wherein
the first end
portion and the second end portion are coupled to one another in an
overlapping region by
means of an adhesive layer made of an adhesive
wherein the outer part further has a first end face and a second end face and
the two end faces
are spaced apart from one another, wherein the first end face faces the bottom
and the second
end face the open end of the inner container. The adhesive layer is configured
such that the
first end portion and the second end portion can be detached from one another
in the overlap-
ping region.
The combination packaging container according to the invention offers the
surprising ad-
vantage that a detachable adhesive layer improves the separation of the inner
container
wrapped with the outer part from one another for disposal. In particular, the
measures accord-
ing to the invention enable automated separation of the outer part from the
inner container if
the combination packaging container is excessively deformed in the empty
state, as is the case
with waste transport, for example. This results in complete separation of the
outer part from
the inner container. Thus, the combination packaging container can still be
recycled even if
the end user does not deliberately separate the outer part from the inner
container to dispose
of these separately from one another. The structure of the combination
packaging container
according to the invention prevents undesired detachment of the outer part
from the inner con-
tainer when the combination packaging container is full and improves
separability for dis-
posal.
According to an advancement, it is possible for the adhesive to be a hot-melt
adhesive. This
offers the advantage that a hot-melt adhesive can be applied simply to the
blank cut or to the
outer part during the manufacturing process and, moreover, offers surprisingly
good detacha-
bility.
In an alternative embodiment, it is conceivable for the adhesive to be a
pressure-sensitive ad-
hesive.
Furthermore, it may be expedient for the adhesive layer in the first end
portion to abut against
an outer surface and for the adhesive layer in the second end portion to abut
against an inner
surface, wherein the first end portion has a first tensile strength in the
region of the outer sur-
face against which the adhesive layer abuts, and the second end portion has a
second tensile
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strength in the region of the inner surface against which the adhesive layer
abuts, for the adhe-
sive to have a peel strength,
wherein the peel strength of the adhesive is less than the first tensile
strength of the outer sur-
face of the first end portion. Furthermore, it can be provided that the peel
strength of the adhe-
sive is greater than the second tensile strength of the inner surface of the
second end portion.
This measure offers the surprising advantage of an improvement to the
separability of the two
end portions. In particular, this measure allows the adhesive layer to be
completely peeled off
the outer surface of the first end portion during separation.
Furthermore, it can be provided that the first end portion has a first tensile
strength in the re-
gion of a first surface against which the adhesive layer abuts, and that the
second end portion
has a second tensile strength in the region of a second surface against which
the adhesive
layer abuts, and for the adhesive to have a peel strength,
wherein the peel strength of the adhesive is less than the first tensile
strength of the first sur-
face and/or
wherein the peel strength of the adhesive is less than the second tensile
strength of the second
surface. This measure offers the surprising advantage of an improvement to the
separability of
the two end portions.
In addition, it can be provided that the adhesive has a peel strength and a
shear strength,
wherein the adhesive is selected such that the shear strength is greater than
the peel strength.
This measure offers the surprising advantage that it prevents undesired
separation of the two
end portions and, at the same time, it can achieve desired separation of the
two end portions
during disposal.
Furthermore, it can be provided that the adhesive has a shear strength between
0.04N/mm2
and 2N/mm2, in particular between 0.09N/mm2 and 1N/mm2, preferably between
0.12N/mm2
and 0.5N/mm2 in adhesion to the sealing layer. This measure offers the
surprising advantage
that it prevents undesired separation of the two end portions and, at the same
time, it can
achieve desired separation of the two end portions during disposal.
According to a particular embodiment, it is possible for the adhesive to have
a peel strength
between 0.0005N/mm2 and 1N/mm2, in particular between 0.001N/mm2 and
0.01N/mm2,
preferably between 0.003N/mm2 and 0.007N/mm2 in adhesion to the sealing layer.
This meas-
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ure offers the surprising advantage that it prevents undesired separation of
the two end por-
tions and, at the same time, it can achieve desired separation of the two end
portions during
disposal.
According to an advantageous advancement, it can be provided that the adhesive
has a tensile
strength between 0.1N/mm2 and 60N/mm2, in particular between 1N/mm2 and
30N/mm2,
preferably between 10N/mm2 and 20N/mm2. This measure offers the surprising
advantage
that it prevents undesired separation of the two end portions and, at the same
time, it can
achieve desired separation of the two end portions during disposal.
The strength values can be determined on the basis of the "DIN EN 1465
Adhesives ¨ Deter-
mination of tensile lap-shear strength of rigid-to-rigid bonded assemblies"
standard, for which
the material pairing present on the product is referenced as the material
pairing for determin-
ing the strength values.
In particular, it can be advantageous for the adhesive to have a peel
strength, a shear strength
and a tensile strength, wherein the adhesive is selected such that the tensile
strength is greater
than the shear strength and the tensile strength is greater than the peel
strength. This measure
offers the surprising advantage that it prevents undesired separation of the
two end portions
when the combination packaging container is full and, at the same time, it can
achieve desired
separation of the two end portions during disposal.
Furthermore, it can be provided that a first longitudinal edge is formed on
the first end por-
tion, the former having a first longitudinal edge length, wherein the adhesive
layer has an
elongated extension and is arranged to run parallel to the longitudinal edge.
This offers the ad-
vantage that the outer part can be evenly glued over its entire height
extension, thus having a
homogeneous shape. This surprisingly leads to an improved hold of the outer
part on the inner
container in the state in which it is used and, moreover, to improved
separability of the outer
part from the inner container during disposal.
In addition, it can be provided that a length of the adhesive layer is between
100% and 80%,
in particular between 99% and 85%, preferably between 97% and 93% of the first
longitudi-
nal edge length. This offers the advantage that the outer part can be evenly
closed over its en-
tire height extension, thus having a homogeneous shape. This surprisingly
leads to an im-
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proved hold of the outer part on the inner container in the state in which it
is used and, moreo-
ver, to improved separability of the outer part from the inner container
during disposal. In par-
ticular, it can be provided that the adhesive layer is formed in the shape of
a strip. In an alter-
native embodiment, it can also be provided that the adhesive layer is applied
at intervals run-
fling parallel to the longitudinal edge, for example in the form of adhesive
layer points, be-
tween the first end portion and the second end portion.
An embodiment according to which a width of the adhesive layer can be provided
to be be-
tween lmm and lOmm, in particular between 1.5mm and 7mm, preferably between
2.5mm
and 3.5mm, is also advantageous. This offers the advantage that the outer part
can be evenly
closed over its entire height extension, thus having a homogeneous shape. This
surprisingly
leads to an improved hold of the outer part on the inner container in the
state in which it is
used and, moreover, to improved separability of the outer part from the inner
container during
disposal. In particular, it can be provided that the adhesive layer is formed
in the shape of a
strip. In an alternative embodiment, it can also be provided that the adhesive
layer is applied
at intervals running parallel to the longitudinal edge, for example in the
form of adhesive
layer points, between the first end portion and the second end portion.
According to an advancement, it is possible for the adhesive layer to be
arranged at a distance
from the second longitudinal edge between 1 mm and 10mm, in particular between
1.5mm and
7mm, preferably between 2.5mm and 3.5mm. This offers the advantage that the
outer part can
be evenly closed over its entire height extension and has no loose projecting
regions, which
would lead to an undesired separation of the outer part when handled with the
combination
packaging container. This surprisingly leads to an improved hold of the outer
part on the inner
container in the state in which it is used and, moreover, to improved
separability of the outer
part from the inner container during disposal.
In particular, it can be provided that the adhesive layer is formed in the
shape of a strip. In an
alternative embodiment, it can also be provided that the adhesive layer is
applied at intervals
running parallel to the longitudinal edge, for example in the form of adhesive
layer points, be-
tween the first end portion and the second end portion.
Furthermore, it may be expedient for at least one target separation region to
formed in the
blank cut of the outer part, wherein the target separation region is
configured in the form of a
perforation in the blank cut of the outer part, wherein the target separation
region is arranged
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at a distance from the adhesive layer. This offers the advantage that the
outer part can also be
optionally separated from the inner container by separation in the target
separation region.
According to conducted studies, the presence of the perforation encourages the
end user to ac-
tively separate the outer part of the combination packaging container from the
inner container
and to dispose of these separately.
In addition, it can be provided that the inner container has a shoulder
projecting radially out-
ward in the region of the closed end, wherein the shoulder serves as an axial
stop for the first
end face of the outer part. This measure offers the advantage that the outer
part can be pre-
vented from slipping off the inner container in the axial direction, thereby
preventing unde-
sired separation of the outer part from the inner container prior to disposal.
Furthermore, it can be provided that the shoulder is configured to taper
conically at least in
sections from the open end to the closed end. This measure results in an
improvement to the
axial slidability of the outer part onto the inner container during the
production of the combi-
nation packaging container.
According to a particular embodiment, it is possible for the container jacket
of the inner con-
tainer to be configured to taper conically at least in sections from the open
end to the closed
end. These measures offer the advantage of improved stackability of a
plurality of the combi-
nation packaging containers.
Method for producing a combination packaging container comprising the method
steps:
- providing a cup-shaped inner container, wherein the inner container has a
container jacket
having an open end and a closed end with a bottom
- forming an outer part to encase the inner container
wherein the outer part is formed from a blank cut, said blank cut having a
first end portion and
a second end portion, wherein the blank cut is wound into a jacket and the
first end portion
and the second end portion are coupled to one another in an overlapping region
by means of
an adhesive layer made of an adhesive
wherein the outer part further has a first end face and a second end face and
the two end faces
are spaced apart from one another
- axially sliding the outer part onto the inner container, wherein the first
end face is made to
face the bottom and the second end face the open end of the inner container or
directly form-
ing the outer part by wrapping the inner container. The adhesive layer is
configured such that
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the first end portion and the second end portion can be detached from one
another in the over-
lapping region.
In a first embodiment, it can be provided that forming the outer part and
gluing the first end
portion and the second end portion in an overlapping region takes place by
means of an adhe-
5 sive layer in a separate method step, and the outer part thus formed is
slid onto the inner con-
tainer only in a further method step by axial displacement.
In an alternative embodiment, it is also conceivable for the outer part to be
wound or formed
directly onto the inner container. In this case, it can be provided that the
inner container is at-
tached to a winding mandrel.
10 The method according to the invention offers the surprising advantage
that a detachable adhe-
sive layer improves the separation of the inner container wrapped with the
outer part from one
another for disposal. In particular, the measures according to the invention
enable automated
separation of the outer part from the inner container if the combination
packaging container is
excessively deformed in the empty state, as is the case with waste transport,
for example. This
results in complete separation of the outer part from the inner container.
Thus, the combina-
tion packaging container can still be recycled even if the end user does not
deliberately sepa-
rate the outer part from the inner container to dispose of these separately
from one another.
The structure of the combination packaging container according to the
invention prevents un-
desired detachment of the outer part from the inner container when the
combination packag-
ing container is full and improves separability for disposal.
In particular, it can be advantageous for a hot-melt adhesive to be used for
applying the adhe-
sive layer to the blank cut, said hot-melt adhesive being applied to an outer
surface of the
blank cut in the region of the first end portion before forming the outer
part. Such a hot-melt
adhesive can be applied simply to the blank cut and, in addition, offer
improved separability.
In an alternative embodiment, it can also be provided that the adhesive layer
is applied to the
blank cut before the outer part is formed in the region of the second end
portion onto an inner
surface of the blank cut.
It can further be provided that the hot-melt adhesive is originally present in
granular form and
is melted by heating, in particular to a temperature between 130 C and 160 C,
and is pressed
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through a nozzle for application to the outer surface of the blank cut. This
measure offers the
advantage of achieving a sufficient bond between the hot-melt adhesive and the
blank cut.
According to the invention, a method for separating a combination packaging
container with a
cup-shaped inner container is provided, wherein the inner container has a
container jacket
having an open end and an closed end with a bottom, and an outer part encases
the inner con-
tainer, wherein the outer part is formed from a blank cut, said blank cut
having a first end por-
tion and a second end portion, wherein the blank cut is wound into a jacket
and the first end
portion and the second end portion are coupled to one another in an
overlapping region by
means of an adhesive layer made of an adhesive, wherein the outer part further
has a first end
face and a second end face and the two end faces are spaced apart from one
another, wherein
the first end face faces the bottom and the second end face the open end of
the inner container.
To separate the outer part from the inner container, the first end portion of
the outer part and
the second end portion of the outer part are detached from one another in the
overlapping re-
gion on the adhesive layer.
This offers the advantage that the combination packaging container can still
be recycled even
if the end user does not deliberately separate the outer part from the inner
container to dispose
of these separately from one another.
In particular, it can be provided that the method for separating the
combination packaging
container is carried out when the combination packaging container is empty.
Another advantageous embodiment according to which it can be provided that,
when the first
end portion of the outer part and the second end portion of the outer part are
detached from
one another,
the adhesive layer is detached from the first end portion without the first
end portion being
damaged in the process, the adhesive layer remaining on the second end
portion, or the
adhesive layer is detached from the second end portion without the second end
portion being
damaged in the process, the adhesive layer remaining on the first end portion.
This offers im-
proved separability of the outer part from the inner container.
According to an advancement, in order to separate the outer part from the
inner container, it is
possible to detach the first end portion of the outer part and the second end
portion of the
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=
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outer part from one another in the overlapping region on the adhesive layer in
that a compres-
sive force (-F-) is applied in the direction of the combination packaging
container and, in do-
ing so, the outer part and the container jacket of the combination packaging
container are spa-
tially deformed, wherein the spatial deformation of the outer part and the
container jacket in
the region of the adhesive layer introduces a separating force, which results
in the detachment
of the adhesive layer from the first end portion or to the detachment of the
adhesive layer
from the second end portion. In this way, separation of the combination
packaging container
is achieved by the ambient conditions during waste transport, for example.
Particularly during
transport in a garbage truck, large forces and thus large deformations act on
the combination
packaging container, thus leading to separation of the outer part from the
inner container.
Furthermore, it may be expedient for the spatial deformation of the outer part
to include an
axial deformation that is greater than 1.5cm from an undeformed state of use
and/or a radial
deformation that is greater than 2cm from an undeformed state of use. In this
way, separation
of the combination packaging container is achieved by the ambient conditions
during waste
transport, for example. Particularly during transport in a garbage truck,
large forces and thus
large deformations act on the combination packaging container, thus leading to
separation of
the outer part from the inner container.
A sleeve-shaped outer part can further be provided for encasing a cup-shaped
inner container
to form a combination packaging container,
wherein the inner container has a container jacket configured particularly to
taper
conically from an open end towards a closed end with a bottom
wherein the outer part is formed from a blank cut, said blank cut being wound
into
a jacket in its raised state, and a first end portion and a second end portion
of the jacket facing
the first end portion are connected to one another in an overlapping region
wherein the outer part further has a first end face and a second end face, the
two
end faces spaced apart from one another, and in the raised state, define a
structural height of
the jacket with a longitudinal axis extending in the direction of the
structural height, wherein
the first end face defines a support region in sections at least and,
furthermore, the first end
face can face the bottom and the second end face the open end of the inner
container, and
wherein an additional support device is further provided, said additional
support
device being arranged or formed in the region of the first end face of the
outer part formed
from the blank cut, and
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- the additional support device defines a clear inner dimension,
which is smaller
than an internal dimension of the outer part in its undeformed design in the
region of the first
end face.
The resulting advantage is that the support region or support portion already
defined by the
first end face on the shoulder of the inner container is further improved by
the provision or
formation of the additional support device. In the undeformed configuration of
the bottom-end
region of the blank cut or of the outer part formed therefrom, the additional
support device re-
duces the clear inner dimension with respect to the undeformed configuration,
thereby achiev-
ing an even better latching effect on the inner container. Manufacturing
inaccuracies caused
by tolerance therefore result in no further disadvantages in the stationary
positioning of the
outer part on the inner container, even without the adhesive point usually
applied for securing
purposes between the container jacket and the outer part. This creates an
outer part that can
also be detached more easily from the inner container for disposal.
An advantageous configuration provides that the additional support device
comprises at least
one support element and the at least one support element defines the clear
inner dimension.
The at least one support element forms the additional support device and,
starting from the
undeformed bottom-side edge region or edge portion of the outer part, projects
in the direction
of the longitudinal axis and forms the reduction of the clear internal
dimension.
Furthermore, it can be advantageous for the at least one support element to be
moulded into
the material of the blank cut starting from an outer surface of the outer part
in the direction of
an inner surface and projecting in the radial direction beyond the undeformed
inner surface in
the direction of the longitudinal axis. The material can thus be used directly
to form the at
least one support element, meaning additional components can thus be dispensed
with. No ad-
ditional material is therefore used, which would otherwise have to be treated
separately during
separation and disposal.
Another embodiment is characterized in that the at least one support element
has a longitudi-
nal extension starting from the first end face in the direction of the second
end face. Thus, a
defined projection of the at least one support element beyond the inner
surface of the blank
cut or outer part can be realised, which forms the enlargement or widening of
the bottom-side
support region.
CA 03211080 2023-08-15
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A further possible embodiment has the features that a plurality of support
elements are pro-
vided and the support elements are arranged spaced apart from one another
along the first end
face in the circumferential direction. As a result, it is possible to achieve
an even better sup-
porting effect viewed over the circumference even under changing environmental
conditions
and/or during handling.
A further configuration provides that the additional support device comprises
at least one
forming portion, said at least one forming portion being moulded into the
material of the
blank cut starting from an inner surface of the outer part in the direction of
an outer surface,
the at least one forming portion being arranged at a distance from the first
end face. An align-
ment of the edge portion in the opposite direction can consequently be formed.
Another embodiment is characterized in that the at least one forming portion,
viewed in axial
section, has a preferably curved longitudinal extension and an end portion
adjoining the form-
ing portion in the direction of the first end face oriented so as to be
inclined in the direction of
the longitudinal axis. This achieves additional stiffening of the bottom-side
end portion or pe-
ripheral edge region.
A further preferred embodiment is characterized in that the at least one
forming portion has a
parallel longitudinal extension in relation to the first end face. This
achieves uniform for-
mation of the additional support device projecting in the direction of the
inner container.
Furthermore, it can be advantageous for the forming portion to be arranged so
as to extend
continuously along the first end face in the circumferential direction. This
achieves a secure
and uniform supporting effect over the entire circumference, in particular for
inner containers
with a round cross-sectional shape.
Another alternative embodiment is characterized in that a plurality of forming
portions are
provided, the forming portions being arranged spaced apart from one another
along the first
end face in the circumferential direction. This alternative can be used in
particular for inner
containers with container walls running rectilinearly as seen in cross
section, which each have
a rounded comer region in transition regions located therebetween. This avoids
the undesired
formation of folds in the transition regions.
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A further configuration intends for an adhesive to be provided in the
overlapping region be-
tween the two end portions, said adhesive having a first adhesive force value
viewed in the
circumferential direction and having a second adhesive force value in the
radial direction,
wherein the first adhesive force value is greater than the second adhesive
force value. Adhe-
sion can be formed at a higher level when viewed in the circumferential
direction as a result
of the differing adhesive force values of the adhesive holding the blank cut
together at its end
portions facing one another one the one hand, and on the other hand, when a
force deviating
therefrom is applied, this enables a lighter separating effect with reduced
adhesive force. This
facilitates the separation process of the overlapping region during separation
of the outer part
from the inner container. If a compressive force is exerted in the direction
of the inner con-
tainer, this can lead simply to mutual 'detachment of the two end portions
connected to one an-
other. A simple separation process of the outer part from the inner container
can also be car-
ried out during disposal in this way.
Another embodiment is characterized in that at least one target separation
region is formed or
provided in the jacket of the outer part. A further method of detachment of
the outer part from
the inner container is intended by providing the outer part jacket with an
individual target sep-
arating region. This enables the user or consumer of the combination packaging
container to
carry out targeted separation thus properly separating the materials in a
known manner after
consuming the contents.
A further configuration provides that the sleeve-shaped outer part is
supported in the axial di-
rection on the shoulder of the inner container by means of its additional
supporting device
without using an additional adhesive. Thus, after the combination packaging
container has
been used, separating it into the inner container and the outer part is even
easier and above all
safer. After the separation process of the outer part, the outer part still
forms a piece that be-
longs together, which can be fed simply and above all in one piece to the
proper disposal and
recyclable materials collection. Dispensing with the additional adhesive means
a saving and
also avoiding possible contamination of the machine when applying the
adhesive.
In a further alternative variant, it can be provided that a segment of the
outer part is bonded to
the inner container and that this segment remains on the inner container after
the outer part
has been separated from the inner container, this segment being coupled to the
remaining
parts of the outer part by means of an adhesive layer. In particular, it can
be provided that this
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segment has only a small extension so that there is only a slight
contamination of the plastic
waste. This measure offers an improved hold of the complete outer part to the
inner container
in order to avoid undesired detachment. In particular, it can be provided that
the segment re-
maining on the inner container is dimensioned such that the mass of the
segment remaining
on the inner container is less than 5% of the mass of the inner container.
The figures below elaborate on the invention to offer better understanding
thereof.
The figures show in greatly simplified, schematic depiction:
Fig. 1 a combination packaging container with an inner container and
an outer part with
an additional support device in a view partially in section
Fig. 2 a detail of the combination packaging container according to Fig. 1
in sectional
and enlarged view
Fig. 3 a partial region of the combination packaging container
according to Fig. 1 and 2
in cross section according to lines in Fig. 1 and the enlarged view
Fig. 4 the blank cut for forming the outer part according to Fig. 1
to 3 in undeformed,
planar position
Fig. 5 a further embodiment of a blank cut for forming the outer part
with a different
configuration of the additional support device, in an undeformed, planar
position
Fig. 6 a further detail of the combination packaging container with
the further embodi-
ment of the blank cut according to Fig. 5 in sectional and enlarged view
Fig. 7 a further embodiment of a combination packaging container with an
inner con-
tainer and an outer part, depicted partially in section
Fig. 8 a further embodiment of a blank cut for forming the outer part
with a recess of a
printing layer in an undeformed, planar position
Fig. 9 a sectional view according to the section line IX-IX of Fig. 8
to depict a layer
structure
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Fig. 10 a further embodiment of a combination packaging container with
an inner con-
tainer and an outer part, wherein the outer part projects beyond a bottom of
the in-
ner container, depicted partially in section
Fig. 11 a further embodiment of a blank cut for forming the outer part
with a corrugated
configuration of the additional support device in an undeformed, planar
position
Fig. 12 a further embodiment of a blank cut for forming the outer part
with pointed em-
bossing of the additional support device in an undeformed, planar position
Fig. 13 a further embodiment of a blank cut for forming the outer part
with pointed
notches of the additional support device in an undeformed, planar position.
It is worth noting here that the same parts have been given the same reference
numerals or
same component configurations in the embodiments described differently, yet
the disclosures
contained throughout the entire description can be applied analogously to the
same parts with
the same reference numerals or the same component configurations. The
indications of posi-
tion selected in the description, such as above, below, on the side etc. refer
to the figure di-
rectly described and shown, and these indications of position can be applied
in the same way
to the new position should the position change.
The term "in particular" is understood in the following to be a possible, more
specific config-
uration or further specification of subject matter or a method step but not
necessarily to mean
a mandatory, preferred embodiment of the same or a mandatory procedure.
In their present use, the terms "comprising", "has", "having", "includes",
"including", "con-
tains", "containing" and any variations thereof are intended to be non-
exclusive in nature.
A further term, "optional(ly)" can also be used. This is understood to mean
that this method
step or plant component is basically present, but is only used depending on
the operating con-
ditions, though this does not necessarily need to be the case.
Fig. 1 to 4 show an embodiment of a combination packaging container 1 as an
example for a
plurality of possible different shapes, the combination packaging containers 1
being formed in
the shape of cups or dishes. The combination packaging container 1 comprises
an inner con-
CA 03211080 2023-08-15
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tainer 2 configured in the shape of a cup or dish with a bottom 3 and a
container jacket 4. Fur-
thermore, the inner container 2 has an open end 3 on its side facing away from
the bottom 5,
wherein a flange 5 projecting outward from the container jacket 4 can be
provided in the re-
gion of its open end 6. The bottom 3 forms a closed end 4 for the container
jacket 7.
The inner container 2 is preferably formed by a component produced in a deep-
drawing pro-
cess, which can be produced quickly and above all in a short cycle time. The
process of deep-
drawing is well known and therefore requires no further explanation. The deep-
drawing pro-
cess is particularly suitable for producing the inner container 2 with a
sufficient wall thickness
from a layer of a formable material to be formed by.means of a deep-drawing
tool, said wall
thickness ensuring sealing during storage, use and up to disposal. This
manufacturing process
enables the production of relatively thin inner container 2 wall thicknesses.
However, the in-
ner container 2 can also be shaped by means of other manufacturing methods,
e.g.: by an in-
jection moulding process.
As a result of the cup-shaped or dish-shaped configuration of the inner
container 2, a longitu-
dinal axis 5, which can also represent a central axis in a symmetrical
configuration, extends in
the axial direction between the open end 3 and the closed end 7 with the
bottom 8. It is possi-
ble to arrange or connect a sealing lid (not shown in detail) in the region of
the flange 6. In
this case, the flange 6 forms a sealing flange.
In the axial direction and thus in the direction of the longitudinal axis 8,
the inner container 2
has a container height 5 between its open end 6, in particular the flange 3,
and the bottom 9,
as a result of which the receiving volume of the inner container 2 is
determined as a function
of the cross-sectional dimensions. A receiving space of the inner container 9
is thus defined
by the container height 2 in conjunction with the cross-sectional dimensions.
The container jacket 4 is understood to be that portion of the inner container
2, which extends
in the predominantly axial direction between the open end 5, in particular the
flange 6, and the
bottom 3. The inner container 2 with its container jacket 4 is preferably
configured such that it
preferably tapers conically starting from the open end 5 towards the bottom 3.
Furthermore, the container jacket 4 of the inner container 2 can have an
undercut 3 in its cir-
cumferential portion adjacent to the bottom 10. The undercut 10 is also part
of the container
jacket 4, but viewed in axial section, is arranged offset inwardly with
respect to an imagined,
CA 03211080 2023-08-15
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rectilinear connecting line between the flange 6 and the bottom 3. The
undercut 10 itself has
at least two undercut wall portions not described in further detail, the two
undercut wall por-
tions viewed in axial section having a different inclination or direction with
respect to the lon-
gitudinal axis 8 than the rest of the container jacket 4. For this purpose,
the undercut 10 is ar-
ranged between the flange 4 and the bottom 6 inwardly and thus offset in the
direction of the
receiving space in relation to the arrangement of the container jacket 3,
which extends in a
rectilinear manner as seen in axial section.
Viewed in axial section, the first undercut wall portion directly adjoining
the bottom 3 is ar-
ranged or configured to extend predominantly in the direction of the container
height 9 to-
wards the open end 5. The further undercut wall portion extends in a
predominantly perpen-
dicular direction in relation to the container height 9, starting from the end
of the first under-
cut wall portion facing away from the bottom 3, towards the container jacket
4. In the present
embodiment, the further undercut wall portion forms a stacking shoulder. This
stacking shoul-
der serves to support a similar combination packaging container 1 with its
bottom 3, in partic-
1 5 ular the edge-side transition portion between the bottom 3 and the
container jacket 4.
Furthermore, the inner container 2 can be provided with a shoulder 3 or a bead
projecting on
the side facing away from the longitudinal axis 4 in the immediate transition
region between
the bottom 3 and the container jacket 10, in particular between the bottom 8
and the undercut
11. The shoulder 11 or the bead can be configured circumferentially. It is
further conceivable
for the shoulder 11 or the bead to be configured in sections.
The combination packaging container 1 further comprises an outer part 12,
which is formed to
be cuff shaped or jacket shaped and surrounds the inner container 2 in the
region of its con-
tainer jacket 4 at least in portions or regions.
The above-described shoulder 11 can serve to axially fix the cuff-shaped outer
part 12 to the
inner container 2, for example. In this case, the sleeve-shaped outer part 12,
with its first end
face 3 facing the bottom 2 of the inner container 19, is supported on this
shoulder 11 formed
in the transition region. The shoulder 11 can therefore also be referred to as
a latching means
for holding the outer part 12 on the inner container 2. In its longitudinal
extension, the end
face 19 forms an end edge, which defines a support region and is supported so
as to adjoin the
shoulder at least in sections in the joined position. To simply axially join
the outer part 12 to
CA 03211080 2023-08-15
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the inner container 2, it can be provided that the shoulder 11 is configured
to taper conically at
least in sections from the open end 5 towards the closed end 7.
Furthermore, the sleeve-shaped outer part 12 comprises a second end face 20,
which in turn
faces the open end 5 or the flange 6.
The sleeve-shaped outer part 12 is preferably formed from a cellulose
material, such as a
cardboard material, with sufficient strength with respect to the absorption
and transmission of,
in particular, axially acting compressive forces, and is wound from a planar
blank cut 13 into
a jacket, as is already sufficiently known. The blank cut 13 is usually
printed upon in its unde-
formed planar position and, as required, also provided with an additional
coating. It is of
course also conceivable that the blank cut 13 is configured in multi-part
form. A cellulose ma-
terial is usually used as the material for the blank cut 13; this can also be
a cardboard or strong
paper produced by recycling. If a layer of the outer part 12 is formed from a
recycled material,
an additional layer of a higher quality paper can be arranged on or connected
to at least one of
the surfaces. This additional layer enables perfect printing for the
production of decorations,
inscriptions and product information.
The sleeve-like or jacket-like outer part 12 offers an additional
reinforcement or stiffening ef-
fect of the inner container 2 and thus of the entire combination packaging
container 1.
This offers high strength and good thermal insulation on the one hand and
optimal light pro-
tection for the packaging container contents on the other hand.
It can also be particularly provided that the cardboard be additionally coated
or sealed with a
water-repellent material in the region of the cut edges. This is particularly
advantageous if the
combination packaging containers 1 are exposed to high levels of moisture. The
coating of the
cardboard used for the outer part 12 with a water-repellent layer prevents
swelling of the card-
board in a moist environment and ultimately detachment from the container
jacket 4 of the
combination packaging container 1.
The sleeve-shaped outer part 12 is wound from the mostly planar blank cut 13
to a jacket. It
can further be provided that the adhesive layer 48 is applied to an outer
surface 14 of the
blank cut 42 in the region of the first end portion 13. The adhesive can be
present in granulate
form and melted in this case. In its molten state, the adhesive can
subsequently be sprayed
onto the outer surface 42 of the end portion 14 by means of a nozzle. By
winding the blank
cut, end portions 14, 15 facing one another are connected to one another in an
overlapping re-
gion 16 shown in a simplified manner. This is achieved by what is known as an
overlap seam,
CA 03211080 2023-08-15
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with which the first end portion 14 and the second end portion 15 adhere to
one another by
means of an adhesive layer 48, for example. The first end portion 14 of the
blank cut 13 ends
with a first longitudinal edge 17 and the second end portion 15 in turn ends
with a second lon-
gitudinal edge 18. In the overlapping region 16, the two longitudinal edges
17, 18 extend ap-
proximately parallel to one another, the overlapping region 16 configured with
an overlap
width formed therebetween viewed in the circumferential direction. In
particular, it can be
provided that, in the wound state of the outer part 12, the second end portion
15 protruding
over the first end portion 14 on the outside.
The cuff-shaped outer part 12 can be wound with the help of a winding mandrel.
The outer part 12 further has the first end face 19 and the second end face
20, the two end
faces 19, 20 being spaced apart from one another and defining a structural
height 21 of the
jacket in the raised state. The above-described longitudinal axis 8 can also
define the common
longitudinal axis for the outer part 12, in particular when the outer part 12
is in its mounted
position on the inner container 2. The structural height 21 of the jacket is
mostly slightly less
than the container height 9 of the inner container 2 in the same spatial
direction; namely in the
direction of the longitudinal axis 8.
A possible, but not mandatory arrangement and/or configuration for the
separating the outer
part 12 from the inner container 2 is described in the following. This is what
is known as a
target separation region 22, which is arranged and configured in the material
of the outer part
12. The following detailed description of the target separation region 22
corresponds to the
configuration as already described in WO 2020/245148 Al. However, the target
separation
region 22 could also be configured in a different and deviating manner.
In order to enable a defined separation and a resulting subsequent separate
disposal of the in-
ner container 2 and outer part 12 for a consumer, at least one target
separation region 12
formed in the jacket of the outer part 22 is provided. For this purpose, the
target separation re-
gion 22 comprises a first separating portion 23, a second separating portion
24 and an actuat-
ing means 25 for starting and beginning the separation process of the target
separation region
22 along the two separating portions 23, 24. The actuating means 25 is
arranged between the
two end faces 21, 19 viewed in the direction of the structural height 20 of
the jacket. In this
case, it is advantageous for the actuating means 25 to be arranged
approximately centrally be-
tween the two end faces 21, 19 spaced apart from one another in the direction
of the structural
CA 03211080 2023-08-15
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height 20, this corresponding essentially to half the structural height 21. In
regard to the actu-
ating means 25, the indication "central" refers to half of its size in the
direction of the struc-
tural height 21 or the longitudinal axis 8. The two separating portions 23, 24
are provided on
both sides of the actuating means 25 and each extend in the direction of the
respective end
face 19, 20.
Viewed in the direction of the structural height 21 of the jacket, the two
separating portions
23, 24 of the target separation region 22 are each aligned so as to converge
from the two end
faces 19, 20 and thus define between them an imagined, rectilinear connecting
line 26 shown
in dashed lines. The converging alignment of the two separating portions 23,
24 is in relation
to the direction towards the actuating means 25 in each case. The two
separating portions 23,
24 can either be aligned with one another as viewed in the direction of the
structural height 21
of the jacket, or they can also extend with at a slight incline with respect
to the first longitudi-
nal edge 17 in the direction of the actuating means 25 located between them.
This slight incli-
nation leads to additional improvements in the separation process after the
two separating por-
tions 23, 24 have been separated up to the two end faces 19, 20. Furthermore,
it is also con-
ceivable for the two separating portions 23, 24 of the target separation
region 22 to be config-
ured in an arcuate shape. The two separating portions 23, 24 of the target
separation region 22
can extend in a spiral shape, for example.
Depending on the configuration of the target separation regions described in
more detail be-
low, the imagined connecting line 26 is assumed to extend in a means of the
target separation
regions. The actuating means 25 in turn defines a detection portion 27 with a
first detection
portion end 21 and a second detection portion end 28 located at a distance
from one another in
the direction of the structural height 29. Thus, the two detection portion
ends 28, 29, viewed
in the direction of the structural height 21 of the jacket, are arranged at a
distance 30 from one
another or end there. Furthermore, it can also be seen that the detection
portion 27 of the actu-
ating means 25 is arranged or formed outside the overlapping region 16.
In this case, an arrangement of the actuating means 25 is provided, in which
the detection por-
tion 27, viewed in the circumferential direction, is arranged or formed at a
distance laterally
by an offset 23 with respect to the separating portions 24, 22 of the target
separation region 26
and the straight connecting line 31 imagined therebetween. The offset 31 can
have a value se-
lected from a range of values with a lower limit of 1.0mm and an upper limit
of 10.0mm. The
value range can preferably have a lower limit of 2.0mm and an upper limit of
6.0mm.
CA 03211080 2023-08-15
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The first separating portion 23 itself can have a first end 25 facing the
actuating means 32,
whereas the second separating portion 24 can have a second end 25 facing the
actuating
means 33. In the region of the imagined connecting line 26 between the two
ends 32, 33, the
jacket can be configured without interruption due to the provided lateral
offset 31 of the actu-
ating means 25. The arrangement of the two ends 21, 32 of the separating
portions 33, 23
spaced apart from one another in the direction of the structural height 24
with respect to the
detection portion 25 that forms the actuating means 27 is selected such that
the first detection
portion end 28 of the detection portion 27 overlaps the adjacent first end 32
of the first sepa-
rating portion 23 on the side facing away from the second separating portion
24. As a result of
the lateral offset 31 of the detection portion 27 on the side facing away from
the overlapping
region 16, a first target separation portion 34 is formed, viewed in the
circumferential direc-
tion, in the jacket of the outer part 12 between the first detection portion
end 28 and the first
end 32 of the first separating portion 23.
It can further be provided that the second detection portion end 29 of the
detection portion 27
overlaps the adjacent second end 33 of the second separating portion 24 on the
side facing
away from the first separating portion 23. Thus analogously to the first
target separation re-
gion 34, a second target separation portion 29 is also formed in the jacket of
the outer part 33
between the second detection portion end 24 and the second end 35 of the
second separating
portion 12. The two target separation portions 34, 35 are formed by the
reduced dimension of
the jacket material between the respective detection portion end 28 or 29 and
the respective
end 32 or 33. The two ends 32 and 33 of the separating portions 23, 24 are
arranged closer to
one another than the two detection portion ends 30 and 28 spaced apart from
one another by
the distance 29.
This makes it possible for a user of the combination packaging container 1 to
grasp the actuat-
ing means 25 with its detection portion 27, subsequently to separate the two
target separating
portions 3435 starting from the detection portion 27 up to the respective ends
32, 33 of the
two separating portions 23, 24 and subsequently to separate the two separating
portions 23, 24
until the jacket has been completely separated. By doing so, the outer part 12
can be easily
separated from the inner container 2 and a disposal can take place in a sorted
manner. The two
target separating portions 34, 35 each form starting portions for the
separation of the two sep-
arating portions 23, 24.
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Each of the two separating portions 23, 24 can comprise a plurality of target
separation points
arranged in series in a row, which are typically configured as perforations,
in particular also as
short cuts, in the material of the outer part 12.
This embodiment shows that the shape and position of the target separation
points can be se-
lected differently from one another. For this reason, target separation points
arranged directly
adjacent to the respective detection portion ends 28, 29 are designated first
target separation
points 36. The further target separation points provided respectively in the
subsequent direc-
tion toward one of the two end faces 19, 20 are designated second target
separation points 37
and third target separation points 38.
The target separation points 36, 37, 38 are configured and arranged in a
mirror-image manner
with respect to one another and to a plane 8-see Fig. 1 - aligned centrally
and in normal align-
ment to the longitudinal axis 39. Therefore, only those target separation
points 23, 36, 37 lo-
cated in the region of the first separating portion 38 are described in more
detail and should be
transferred to the second separating portion 24 by analogy.
Furthermore, it is also shown in the lower left corner region of the
combination packaging
container 1 shown in section in Fig. 1 and in the enlarged representation
thereof in Fig. 2 that
an additional support device 19 is provided or formed in the region or in the
portion of the
first end face 13 of the blank cut 12 or of the outer part 13 formed therefrom
by solely form-
ing the material of the blank cut 40. The additional support device 40 serves
or is configured
to ensure that the outer part 12 is or becomes even more securely supported on
the shoulder 2
of the inner container 11 in the axial direction until it is detached
therefrom. The additional
support device 40 is further configured such that a clear internal dimension
of the ready
formed outer part 12 is smaller in relation to the undeformed configuration.
The bottom-side
end face 19 of the outer part 12 already forms or defines the support portion
that cooperates
with the shoulder 11, which is further improved, in particular enlarged, and
made more secure
by the provision or formation of the additional support device 40.
In this first embodiment shown here, the additional support device 40
comprises at least one
support element 41, but preferably a plurality of support elements 19 arranged
at a distance
from one another along the first end face 41, which are arranged in a
distributed manner over
the circumference of the sleeve-shaped outer part 12. The individual support
elements 41 can
be moulded into the material of the blank cut 131313. The support elements 41
are moulded
starting from an outer surface 42 of the outer part 12 in the direction of an
inner surface 43
CA 03211080 2023-08-15
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and are thus formed. Thus, these project in the radial direction over the
undeformed inner sur-
face 43 in the direction of the longitudinal axis 8. The projection can have a
value from a
value range with a lower limit of 0.05mm, in particular 0.1mm, and an upper
limit of 0.5mm,
in particular 0.2mm.
A clear inner dimension 44 of the additional support device 41 formed by the
supporting ele-
ments 40 is thus smaller than an internal dimension 45 of the outer part 12 in
its undeformed
configuration without the supporting elements 41. By moulding the at least one
support ele-
ment 41, the first end face 19 is also formed along its longitudinal extension
and thus also
forms a support surface for the outer part 12 on the shoulder 11. The
longitudinal extension
can also be formed in the form of a longitudinal corrugation.
The support element 41 or the support elements 41 have a longitudinal
extension starting from
the first end face 19 in the direction of the second end face 20. Thus, the
support element 41
or the support elements 41 reach as far as the first end face 19. The length
of the at least one
support element 41 can be, for example, a few millimetres and depends on the
size and con-
figuration of the undercut 10. Possible examples are 2mm to 15mm, preferably
5mm to
1 Omm. The cross-sectional shape of the support element 41 or of the support
elements 41 is
only shown by way of example. Instead of the rather angular cross-sectional
shape here, a
rounded or arcuate cross-sectional shape would also be conceivable.
In Fig. 4, the blank cut 13 for forming the outer part 12 described above in
Fig. 1 to 3 is
shown in its undeformed, planar position, wherein the same reference numerals
or component
designations as in the preceding Figs. 1 to 3 are used for identical parts. To
avoid unnecessary
repetitions, reference is made to the detailed description in preceding Fig. 1
to 3.
The previously described target separation region 22 is not shown in detail
here, but can also
be provided as has already been described above as a possible and optional
alternative. Fur-
thermore, the orientation of the individual support elements 41, starting from
the first end face
19 facing the floor in the direction of the second end face 20, can be better
seen here. Due to
the arcuately curved longitudinal extension of the two end faces 19, 20 and
their joint centre
(centre of the radius), the individual support elements 41 also have a
longitudinal extension
oriented towards the centre.
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As seen in Fig. 4, it can be provided that the adhesive layer 48 is applied to
an outer surface
14 of the blank cut 42 in the region of the first end portion 13. Applying the
adhesive layer 48
can take place shortly before the blank cut 13 is formed into the outer part
12.
As also seen in Fig. 4, it can be provided that the adhesive layer 48 is
formed in the shape of a
strip. The adhesive layer 48 can run parallel to the first longitudinal edge
17. Furthermore, it
is conceivable for the adhesive layer 48 to have a length 53 or a width 54.
Furthermore, the
blank cut 13 can have a longitudinal edge length 14 in the region of the first
end portion 17, in
particular at the first longitudinal edge 52. For the consideration of the
longitudinal edge
length 52, a possible shortening of the actual longitudinal edge length due to
a rounding or
due to a phase is omitted here. The entire extension of the blank cut 52
between the first end
face 13 and the second end face 19 is thus considered to be the longitudinal
edge length 20.
As also seen in Fig. 4, it can be provided that the adhesive layer 48 in the
wound state is ar-
ranged at a distance 55from the second longitudinal edge 18. The position of
the second lon-
gitudinal edge 18 in the wound state in the illustration according to Fig. 4
is indicated sche-
matically by the dashed line.
Fig. 5 and 6 show a further and possibly independent embodiment of the outer
part 13 formed
from the blank cut 12 to form the jacket, again using the same reference
numbers or compo-
nent designations for the same parts as in the preceding Fig. 1 to 4. To avoid
unnecessary rep-
etitions, reference is made to the detailed description in preceding Fig. 1 to
4.
It is worth noting here that it is once again optionally possible to provide
or to configure the
target separation region 22 already described in detail above. For the sake of
clarity and to
avoid unnecessary repetition, the depiction and description of the latter have
been dispensed
with.
For their part, the blank cut 13 and the outer part 12 formed therefrom
comprise the additional
support device 40, which, however, has a different configuration to the
embodiment described
above. By doing so, the additional support device 40 for forming the same
comprises at least
one forming section 46, which is also moulded into the material of the blank
cut 13. In con-
trast to the embodiment described above, the at least one forming portion 46
is moulded start-
CA 03211080 2023-08-15
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ing from the inner surface 43 of the outer part 12 in the direction of its
outer surface 42. Fur-
thermore, the at least one forming portion 46 is arranged at a distance from
the first end face
19 in the direction of the opposite second end face 20.
Viewed in axial section, the at least one forming portion 46 can have a
longitudinal extension
that is mostly curved outward. An end portion 46 adjoining the at least one
forming portion
19 is provided in the direction of the first end face 47 and located
thereupon, thereby forming
or arranging a corresponding end portion 46 adjacent to each forming portion
47. The end
portion 47 itself can be oriented so as to be inclined in the direction of the
longitudinal axis 8.
As can now be better seen from Fig. 5, the at least one forming portion 46 can
have a parallel
longitudinal extension in relation to the first end face 19. It is also
possible for the forming
section 46 to be arranged or configured to extend continuously in the
circumferential direction
along the first end face 19. However, independently of this, it would also be
conceivable for a
plurality of forming portions 46 to be provided, the forming portions 46 being
arranged
spaced apart from one another in the circumferential direction along the first
end face 19.
Deliberate, additional shaping of the blank cut 13 in the region of its first
end face 19 results
in the previously described end portion 47 with the first end face 19 located
thereon forming
or defining the at least one support element 41. In the raised position of the
blank cut 41 with
respect to the outer part 13, the at least one supporting element 12 in turn
defines the clear in-
ner dimension 44, which is smaller than an internal dimension 45 of the outer
part 12 in its
undeformed configuration without the forming portion 46. The bottom end of the
outer part
12 is indicated in the undeformed position in dashed lines in Fig. 6.
As a result of configuring and moulding the forming portion 46, it may be
necessary to con-
figure the undeformed height between the first and second end faces 19, 20 to
be somewhat
longer in order to subsequently achieve, on the one hand, support on the
shoulder 11 and on
the other hand, to be able to cover the container jacket 6 up to immediately
adjacent to up to
the flange 4.
However, it would also be possible to mould the forming portion 46 from the
outer surface 42
in the direction of the inner surface 43 and thus forming a type of kink.
CA 03211080 2023-08-15
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To mutually connect the end portions 14, 15 of the previously planar blank cut
13 facing one
another during formation of the jacket, an adhesive layer 16 is preferably
used in the overlap-
ping region 48 to be formed. Said adhesive can be applied to one of the end
portions 14 or 15
or to both as is well known.
Separation, disposal and subsequent recycling of the different materials is a
significant chal-
lenge. The inner container 2 is mostly formed from a plastic or degradable
material, which
can be shaped in a thermoforming process. The outer part 12 is preferably
formed from a cel-
lulose material. The blank cut 13 can further be provided with a printed image
on at least one
of its planar sides, namely the outer surface 42 and/or the inner surface 43.
Since the separating process of the outer part 12 from the inner container 2
is mostly not car-
ried out or only partially carried out by the consumer, it can be further
provided here that the
adhesive layer 16 arranged in the overlapping region 48 is configured such
that the first end
portion 14 and the second end portion 15 can be detached from the coupled
state to one an-
other again in the overlapping region 16.
In particular, it can be provided that, viewed in the circumferential
direction and thus against
tension or shear, the adhesive has a sufficiently high adhesive force value in
order to ensure a
sufficient mutual hold of the two end portions 1, 14 to one another under the
usual loads on a
filled combination packaging container 15.
However, if a compressive force -F- is applied to an empty combination
packaging container
1 thus to be separated, and the outer part 12 and the container jacket 4 of
the combination
packaging container 1 are spatially deformed, the adhesive force of the
adhesive layer 48 can
be exceeded and the end portions 14, 15 held together detach from one another,
at least in sec-
tions. The compressive force -F- can be applied to the combination packaging
container 1 in a
wide variety of directions and is at least partially converted into a
separating force at least par-
tially separating the overlapping region 16.
Compression can be carried out in the radial direction and/or also in the
axial direction in this
way, for example. In doing so, the entire combination packaging container 1 is
spatially de-
formed. When a compressive force -F- is applied in the axial direction, both
the outer part 12
and the container jacket 4 buckle in the direction of the longitudinal axis 8
and the separation
of the overlapping region 16 can thus take place or be carried out.
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By providing or forming the additional support device 40 in the edge portion
immediately ad-
jacent to the first end face 19, the sleeve-shaped outer part 12 can be even
better and more se-
curely supported in the axial direction on the shoulder 11 of the inner
container 2 without the
need or use of an additional adhesive. The adhesive point between the inner
surface 43 of the
outer part 12 and the container jacket 4, which was previously additionally
attached for safety
reasons, can thus be dispensed with and no longer need be provided. Thus, when
the overlap-
ping region 16 is separated with the adhesive used in the process and/or when
the target sepa-
ration region 22 is separated, an adhesive bond still undesired between the
outer part 12 and
the inner container 2 can be avoided.
Thus, the user of the combination packaging container 1 can need not carry out
the separation
process and can feed the complete combination packaging container 1 to the
disposal. The
separation process of the target separation region 22 is then carried out
mechanically by a
press or a squeezing device or under the weight of a large amount of waste
during collection
and/or during waste disposal.
Furthermore, in order for a person to carry out the separation process, it
would also be possi-
ble to place the combination packaging container on a supporting surface
either with its
closed end or with its inner container open end, and subsequently for the
compressive force -
F- to be applied to the end facing away from the supporting surface in the
direction of the sup-
porting surface. Depending on the arrangement and positioning of the
combination packaging
container, the compressive force can thus easily be applied to the combination
packaging con-
tainer and introduced into it with human force, for example. That arrangement
in which the
compressive force is applied to the bottom can minimise the risk of injury.
It would also be possible to exert the compressive force -F- onto the
combination packaging
container in a parallel alignment with respect to a longitudinal axis
extending between the
open end and the closed end or in an alignment at an angle thereto with
respect to the longitu-
dinal axis. Thus, when force is introduced in parallel, the compressive force
can simply be de-
flected into a tearing force acting predominantly in the radial direction for
the most part,
which causes to the outer part to burst in its overlapping region. Should a
deviating force be
introduced, the separation of the overlapping region can also be brought about
by the spatial
deformation.
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If the above-described target separation area is also provided, the separation
process of the
combination packaging container linto its different components can be carried
out optionally.
This is done either by a person or in the course of the collection and
disposal process.
Figure 7 shows a further, optionally independent, embodiment of the
combination packaging
container 1 wherein the same reference numerals or component designations as
in the preced-
ing Fig. 1 to 6 are used again for identical parts. To avoid unnecessary
repetitions, reference is
made to the detailed description in preceding Fig. 1 to 6.
As seen in Fig. 7, it can be provided that the adhesive layer 48 at a distance
55 is arranged at a
distance from the second longitudinal edge 18. As the adhesive layer 48 is
located between
the first end portion 14 and the second end portion 151515 in this case, this
is shown in
dashed lines.
As seen in Fig. 7, the outer part 12 can be provided without the support
device 40. In addition,
Fig. 7 schematically shows the adhesive layer 48 arranged between the first
end portion 14
and the second end portion 15. As seen in Fig. 7, the adhesive layer 48 is
arranged at a dis-
tance 55 from the second longitudinal edge 18.
Figures 8 and 9 show a further and optionally independent embodiment of the
blank cut 13,
wherein the same reference numerals and component designations are used as in
preceding
Figures 1 to 7 for identical parts. To avoid unnecessary repetitions,
reference is made to the
detailed description in preceding Fig. 1 to 7.
As seen in Fig. 8 and 9, the blank cut 13 can be provided to have a layer
structure. In particu-
lar, it can be provided that a support layer 49 is formed, which can be
produced from a cellu-
lose material, such as a cardboard material. A printing layer 49, which serves
to visually rep-
resent information on the blank cut 50, can be applied to the support layer
13. A sealing layer
51 can be further be formed to cover the printing layer 50. In particular, it
can be provided
that the outer surface 42 is formed on the sealing layer 51. It can further be
provided that the
inner surface 43 is formed on the support layer 49.
As also seen in Fig. 8 or Fig. 9, it can be provided that the adhesive layer
42 is arranged on
the outer surface 51 of the sealing layer 48. In particular, it can be
provided that the printing
layer 50 is recessed in the region in which the adhesive layer 48 is formed.
This can also be
CA 03211080 2023-08-15
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referred to as pressure recess 56. It can further be provided that in this
region, in which the
printing layer 50 is recessed, the sealing layer 51 directly contacts the
support layer 49 or is
arranged directly on the support layer 49. As is particularly clear in Fig. 8,
it can be provided
that the pressure recess 56 has a recess depth 57. The overlap of the first
end portion 14 and of
the second end portion 15 can further have an overlap depth 58. As can be seen
in Fig. 8, the
recess depth 57 can be smaller than the overlap depth 58.
Figure 10 shows a further, optionally independent, embodiment of the
combination packaging
container 1, wherein the same reference numerals or component designations as
in the preced-
ing Fig. 1 to 9 are used again for identical parts. To avoid unnecessary
repetitions, reference is
made to the detailed description in preceding Fig. 1 to 9.
As can be seen in Fig. 10, it can be provided that the outer part 12 extends
beyond the bottom
3 of the inner container 2. It can further be provided that the outer part 12
has a bottom por-
tion 59. As the shoulder 11 is absent as an axial support in such an
embodiment, it can be pro-
vided that an axial securing groove 2 is configured in the inner container 4,
in particular in the
container jacket 60, the former being able to cooperate with a correspondingly
configured
supporting device 40 of the outer part 12. The support device 40 can be
configured as already
described.
Figure 11 shows a further, optionally independent, embodiment of the blank cut
13, wherein
the same reference numerals or component designations as in the preceding Fig.
1 to 10 are
used again for identical parts. To avoid unnecessary repetitions, reference is
made to the de-
tailed description in preceding Fig. 1 to 10.
As can be seen in Fig. 11, the forming portion 46 can be provided to be
moulded in corrugate
form into the material of the blank cut 13. In other words, the forming
portion 46 can have a
varying distance from the first end face 19 over its longitudinal extension.
In particular, it can
be provided that the corrugate form corresponds to recesses or to profiles of
the inner con-
tainer 2.
Figure 12 shows a further, optionally independent, embodiment of the blank cut
13, wherein
the same reference numerals or component designations as in the preceding Fig.
1 to 11 are
used again for identical parts. To avoid unnecessary repetitions, reference is
made to the de-
tailed description in preceding Fig. 1 to 11.
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As can be seen in Fig. 12, it can be provided that the individual support
elements 41 can be
moulded into the material of the blank cut 13 by forming or embossing. In this
case, the sup-
port elements 41 can be of arcuate configuration on their upper side as is
shown, for example,
in the left half of the blank cut 13. In this case, the support elements 41
can further be of ta-
pered configuration on their upper side as is shown, for example, in the right
half of the blank
cut 13. Of course, the support elements 41 can also be of trapezoidal
configuration, or a dif-
ferent shape. In a first embodiment, it is conceivable that all of the support
elements 41 be the
same respectively selected shape. In a further embodiment, it is conceivable
for the support
elements 41 to be a different shape on a single blank cut 13.
Figure 13 shows a further, optionally independent, embodiment of the blank cut
13, wherein
the same reference numerals or component designations as in the preceding
Figures 1 to 12
are used again for identical parts. To avoid unnecessary repetitions,
reference is made to the
detailed description in preceding Fig. 1 to 12.
As can be seen in Fig. 13 it can be provided that the support elements 41 are
arranged at a dis-
tance from the first end face 19. The individual support elements 41 can be a
shape as de-
scribed in Fig. 12.
Furthermore, the individual support elements 41 can be cut on their underside,
which faces
the first end face 19. This is shown in dashed lines in Fig. 13.
The support elements 41 shown in Fig. 13 can correspond to and be supported on
the shoulder
11 of the inner container 2, wherein the first end face 19 can extend beyond
the bottom 3 of
the inner container 2.
The embodiments show possible design variants, however it is noted at this
point that the in-
vention is not restricted to the design variants of the same specifically
shown, rather various
combinations between the individual design variants are possible and these
possible variants
can be developed using the knowledge of the person skilled in the art working
in this field
based on the teachings of technical practice offered by the current invention.
The scope of protection is determined by the claims. However, the description
and the draw-
ings are to be referenced for the interpretation of the claims. Individual
features or combina-
tions of features from the various exemplary embodiments shown and described
can represent
CA 03211080 2023-08-15
- 33 -
independent inventive solutions in themselves. The problem to be solved, upon
which the in-
dependent, inventive solutions are based, can be derived from the description.
All value ranges specified in the current description are to be understood
such that they in-
clude any and all sub-ranges, e.g. the specification 1 to 10 is to be
understood such that all
sub-ranges, starting from the lower limit I and the upper limit 10 are
included, i.e. all sub-
ranges begin with a lower limit of 1 or more and end at an upper limit of 10
or less, e.g. 1 to
1.7 or 3.2 to 8.1 or to 5.5 to 10.
As a matter of form and by way of conclusion, it is noted that, to improve
understanding of
the structure, elements have partially not been shown to scale and/or enlarged
and/or shrunk.
15
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List of reference numerals
31 Offset
1 Combination packaging container
32 First end
2 Inner container
33 Second end
3 Bottom
34 First target separation portion
4 Container jacket
35 Second target separation portion
Open end
36 First target separation point
6 Flange
37 Second target separation point
7 Closed end
38 Third target separation point
8 Longitudinal axis
39 Plane
9 Container height
40 Support device
Undercut
41 Support element
11 Shoulder
42 Outer surface
12 Outer part
43 Inner surface
13 Blank cut
44 Inner dimension
14 First end portion
45 Internal dimension
Second end portion
46 Forming portion
16 Overlapping region
47 End portion
17 First longitudinal edge
48 Adhesive layer
18 Second longitudinal edge
49 Support layer
19 First end face
50 Printing layer
Second end face
51 Sealing layer
21 Structural height
52 Longitudinal edge length
22 Target separation region
53 Length
23 First separating portion
54 Width
24 Second separating portion
55 Distance
Actuating means
56 Pressure recess
26 Connecting line
57 Recess depth
27 Detection portion
58 Overlap depth
28 First detection portion end
59 Bottom portion
29 Second detection portion end
60 Axial securing groove
Distance
