U.S. patent application number 17/627392 was filed with the patent office on 2022-08-18 for three-dimensional carrier with adaptable tabs.
The applicant listed for this patent is Anheuser-Busch InBev nv. Invention is credited to Federico BUJA, Keenan THOMPSON.
Application Number | 20220258942 17/627392 |
Document ID | / |
Family ID | |
Filed Date | 2022-08-18 |
United States Patent
Application |
20220258942 |
Kind Code |
A1 |
THOMPSON; Keenan ; et
al. |
August 18, 2022 |
THREE-DIMENSIONAL CARRIER WITH ADAPTABLE TABS
Abstract
The invention pertains to a three-dimensional packaging (1)
adapted to retain one or more object, and in particular for holding
containers such as cans. Furthermore, the invention relates to an
assembly comprising the packaging according to the invention,
holding a set of objects.
Inventors: |
THOMPSON; Keenan; (Leuven,
BE) ; BUJA; Federico; (Leuven, BE) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Anheuser-Busch InBev nv |
Brussels |
|
BE |
|
|
Appl. No.: |
17/627392 |
Filed: |
July 16, 2020 |
PCT Filed: |
July 16, 2020 |
PCT NO: |
PCT/EP2020/070207 |
371 Date: |
January 14, 2022 |
International
Class: |
B65D 71/50 20060101
B65D071/50 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 16, 2019 |
BE |
BE2019/5462 |
Claims
1. Packaging for holding a plurality of objects, preferably
containers, said packaging comprising a plate having an upper
outside surface and a bottom outside surface; said plate further
comprising a plurality of retention means, preferably said
retention means being provided in a grid formation on the plate;
wherein each retention means comprises a hollow receiving portion
protruding from the plate, said receiving portion comprising a wall
and a top; wherein the wall of the receiving portion is provided
with at least 3, preferably 6 or more, inward protrusions,
protruding radially inwards from said wall; characterized in that
the packaging consists of metal; and wherein the hollow receiving
portion is closed at the upper outer surface of the packaging, and
wherein the walls do not comprise openings.
2. Packaging according to claim 1, wherein the protrusions have a
width between 1.0 mm up to 10.0 mm, and preferably between 1.0 mm
up to 5.0 mm.
3. Packaging according to claim 1, wherein the protrusions are
provided non-symmetrically over the perimeter of the wall.
4. Packaging according to claim 1, wherein the wall is
substantially cylindrical, extending over a height with respect to
the plate of at least 0.25 cm, preferably at least 0.5 cm, more
preferably at least 0.75 cm, wherein the protrusions extend
inwardly from the wall over a distance of at least 0.5 mm,
preferably at least 1.0 mm, more preferably at least 2.0 mm, most
preferably at least 5.0 mm.
5. Packaging according to claim 1, wherein each inward protrusion
is substantially local and does not extend over the perimeter of
the wall.
6. Packaging according to claim 1, wherein the inward protrusions
comprise cut-out tabs from the wall with an essentially U-shaped
cut, wherein the U-shape is open facing either towards the top of
the hollow receiving portion, or facing away therefrom, and wherein
the tabs are bent radially inwards with respect to the wall.
7. Packaging according to claim 1, wherein the wall is essentially
cylindrical and wherein the protrusions extend inwardly from the
wall over a distance of at least 1%, preferably at least 5%, of the
radius of the cylindrical wall.
8. Packaging according to claim 1, wherein the inward protrusions
protrude inwardly from the wall over a distance of at most 1.5 mm,
preferably at most 1.0 mm, more preferably at most 0.75 mm.
9. Packaging according to claim 1, wherein the inward protrusions
are positioned with constant intervals along the perimeter of the
wall, said inward protrusions defining the vertices of a regular
polygon.
10. Packaging according to claim 1, wherein the plate comprises two
finger loops extending through the plate, preferably said finger
loops comprising a substantially circular perimeter, wherein each
of said finger loops are positioned adjacent to four retention
means wherein said four retention means define a square with the
finger loop at the center of said square.
11. Packaging according to claim 1, wherein the packaging consists
of aluminum and/or an aluminum alloy.
12. Packaging according to claim 1, wherein the plate consists of
metal, preferably aluminum and/or an aluminum alloy, and wherein
the plate is provided with rolled edges over the perimeter of the
plate, said rolled edges preferably extending over at least 2 mm in
height from the plate.
13. Packaging according to claim 1, wherein the plate consists of
metal, preferably aluminum and/or an aluminum alloy, wherein the
plate comprises two finger loops extending through the plate and
wherein the plate is provided with rolled edges over the perimeter
of the finger loops, said rolled edges preferably extending over at
least 2 mm in height from the plate.
14. Assembly comprising a secondary packaging and a plurality of
objects, said secondary packaging being a packaging according to
claim 1; wherein each of the objects comprises a recessed
cross-sectional outer section at a first end of the object, said
recessed outer section being at least partly, preferably entirely,
inwardly recessed with respect to an adjoining outer section
adjoining said recessed outer section, said adjoining outer section
proximal to the first end of the object; and wherein the receiving
portion without considering the protrusions is adapted to allow
insertion of a section of the objects at said first end, wherein
the protrusions extend inwardly over a distance so as to all extend
into the recessed outer section when the object is inserted into
the receiving portion with the first end of the object.
15. Assembly comprising a first and a second secondary packaging
and a plurality of objects, said first and secondary packaging each
being a packaging according to claim 1: wherein each of the objects
comprises a first and a second recessed cross-sectional outer
section on opposite ends of the objects, said first recessed outer
section at least partly, preferably entirely, inwardly recessed in
view of a first adjoining outer section adjoining said first
recessed outer section, said first adjoining outer section proximal
to the first end of the object, and said second recessed outer
section at least partly, preferably entirely, inwardly recessed in
view of a second adjoining outer section adjoining said second
recessed outer section, said second adjoining outer section
proximal to the second end of the object; wherein the receiving
portion of the first secondary packaging without considering the
protrusions thereof is adapted to allow insertion of a section of
the objects at said first end, and wherein the protrusions extend
inwardly over a distance so as to all extend into the first
recessed outer section when the object is inserted into the
receiving portion with the first end of the object; wherein the
receiving portion of the second secondary packaging without
considering the protrusions thereof is adapted to allow insertion
of a section of the objects at said second end, and wherein the
protrusions extend inwardly over a distance so as to all extend
into the second recessed outer section when the object is inserted
into the receiving portion with the second end of the object.
16. Assembly according to claim 1, wherein the objects are
cylindrical containers, preferably cans, comprising a double seam
along the perimeter of the first end of the container, said double
seam functioning as the adjoining outer section proximal to the
first end of the object.
Description
TECHNICAL FIELD
[0001] The invention pertains to the technical field of (secondary)
packaging means for holding a plurality of objects, preferably
containers (primary packaging), for instance for consumables such
as liquids and foodstuff, specifically for beverage containers,
cans, etc., where the container has recess and/or a ledge, e.g.
formed by a seam portion, usually at the top section and a recessed
portion thereunder with a lower radius.
BACKGROUND
[0002] Container carriers are used in retail environments to
typically hold a set of containers together so that they may be
grasped and carried as a single unit. While lighter containers may
be carried with substantially flat container carriers, heavier
containers usually require container carriers with
three-dimensional support structures to support their weight.
[0003] Container carriers are often manufactured in one location
and then shipped to a different location for application of the
carriers to the containers to be packed. Traditionally such
carriers are produced from cardboard and susceptible to cracking or
tearing, especially when wet.
[0004] Alternatively, or in combination with paper/cardboard, use
of plastic is strongly dissuaded for (secondary) packaging, as it
is often discarded incorrectly or unseparated, thereby creating or
increasing pollution problems (e.g. plastic rings for holding
cans). Even when disregarding incorrect disposal, non-negligible
amounts of plastic tend to end up on landfills, breaking down only
over very long periods of time (several centuries). Even when the
plastic packaging is correctly disposed of, separated from other
waste and recycled, it should be noted that recycling plastic is an
inefficient process at high cost, and with its own pollution
problematics. It is furthermore in this light the applicant felt
the need to search for new solutions.
[0005] The document JPH08301339 discloses a polypropylene packaging
holder for clamping beverage cans. This is however achieved by
pushing the top of each `cup` that clamps a container down, and
flexes the connection parts outwards while also venting the air
inside via the air vent portions. The document specifically
discloses polypropylene as the material to be used.
[0006] There remains a need in the art for improved (secondary)
packaging for holding objects, preferably containers, aiming to
facilitate packaging production, reduce material use and waste, as
well as providing an improved strength.
SUMMARY OF THE INVENTION
[0007] In a first aspect, the invention pertains to a packaging
according to the claims.
[0008] In a second aspect, the invention pertains to an assembly
comprising one or more secondary packaging carriers according to
the first aspect of the invention, and a plurality of objects for
being retained by said one or more secondary packaging
carriers.
[0009] Further advantages, features, and examples of the present
invention are disclosed in the detailed description.
DETAILED DESCRIPTION OF THE INVENTION
[0010] In what follows, reference is often made for the invention
with respect to essentially cylindrical containers. However, it
should be appreciated that the invention at hand is applicable to
any object of any shape (not limited to cylindrical) comprising a
recess and/or ledge formed e.g. by first section with a recessed
section positioned directly beneath. Note that the recessed section
does not necessarily need to be recessed with respect to the first
section over its entire perimeter, but can be provided with a
discrete number of inward recesses over said perimeter. Preferably,
the invention is a secondary packaging for holding elongated
containers which are radially symmetric with respect to the
longitudinal axis, and have a ledge or recessed section.
[0011] In a particular embodiment, the invention provides a
(secondary) packaging carrier for so-called `sleek` containers (and
especially for so-called sleek cans), which have a relatively low
variation in radius over their entire height. This means that
around the seam portion, where the secondary packaging engages the
container, the radius is essentially the same as below, which
allows containers to be packed very densely with(in) a secondary
packaging. In order to ensure structural strength of the secondary
packaging, while keeping the material thickness as limited as
possible, retention means are provided to the packaging extending
(perpendicularly) from the horizontal plane in which the packaging
generally extends. This way, the secondary packaging is generally
provided as a 2-dimensional `plate` structure ensuring a structural
strength which is not compromised by cut out sections to hold the
containers.
[0012] Unless otherwise defined, all terms used in disclosing the
invention, including technical and scientific terms, have the
meaning as commonly understood by one of ordinary skill within the
field of this invention.
[0013] As used herein, the following terms have the following
meanings:
[0014] "A", "an", and "the" as used herein refers to both singular
and plural referents unless the context clearly dictates otherwise.
By way of example, "a compartment" refers to one or more than one
compartment.
[0015] "About" as used herein referring to a measurable value such
as a parameter, an amount, a temporal duration, and the like, is
meant to encompass variations of +/-20% or less, preferably +/-10%
or less, more preferably +/-5% or less, even more preferably +/-1%
or less, and still more preferably +/-0.1% or less of and from the
specified value, in so far such variations are appropriate to
perform in the disclosed invention. However, it is to be understood
that the value to which the modifier "about" refers is itself also
specifically disclosed.
[0016] "Comprise", "comprising", and "comprises" and "comprised of"
as used herein are synonymous with "include", "including",
"includes" or "contain", "containing", "contains" and are inclusive
or open-ended terms that specifies the presence of what follows
e.g. component and do not exclude or preclude the presence of
additional, non-recited components, features, element, members,
steps, known in the art or disclosed therein.
[0017] The recitation of numerical ranges by endpoints includes all
numbers and fractions subsumed within that range, as well as the
recited endpoints.
[0018] The expression "% by weight", "weight percent", "% wt" or
"wt %", here and throughout the description unless otherwise
defined, refers to the relative weight of the respective component
based on the overall weight of the formulation.
[0019] The term "container" refers to a receptacle or holder for
e.g. food and liquids but is equally applicable to containers
holding any type of product, where a widened (seam) portion at or
near the top is followed by a recessed portion with a smaller
radius positioned directly beneath said widened portion. Such
containers can be e.g. cans, glass jars, bottles, steel or other
metal conserve containers. Although the references to the
containers are made in general, taking into account possible
variations on shapes and designs, the containers are typically
radially symmetrical, with a seam portion having a first constant
radius, and a recessed portion with a constant second radius that
is smaller than that of the seam portion, wherein the seam portion
is positioned more towards an end of the container (top end/bottom
end). In general, this seam portion is at the top opening end, and
can be an actual seam, but can also be a lid that is removable or
not (such as in glass jars or bottles), or simply a widened section
for aesthetic purposes. The invention specifically aims to take
advantage of this feature which is present in almost any storage
container for storing a product, e.g. food and/or beverages (or
liquids in general).
[0020] The term "seam portion" refers to a radially protruding
section of the container with a larger radius than the recessed
section thereunder, forming a ledge. As mentioned, in general this
will be present at the upper (opening) end of the container (for
instance a double seam created by a canning process), providing a
practical pick-up section of the container for the invention.
[0021] The "portion directly beneath the seam portion" or "the
recessed portion directly beneath the seam portion" refers to a
(the first) local radius minimum of the container directly below
the seam portion. In most circumstances, both portions will be in a
1 to 4 cm top region of the container, where often the top region
is even at most 0.5 cm including the seam portion being (part of)
the very top.
[0022] The "perimeter" of the aperture is an opening with the same
general contour as the object to be retained. This means that for
holding cans, containers, etc., the perimeter will generally be
circular or polygonal. However, for `deviating` objects to be
retained, other apertures can be envisioned as well, having a more
irregular shape.
[0023] In a first aspect, the invention pertains to a (preferably
secondary) packaging for holding a plurality of objects, preferably
containers, said packaging comprising a plate having an upper
outside surface and a bottom outside surface. The plate comprises a
plurality of object retention means, preferably said retention
means being provided in a grid formation on the plate. Each of the
retention means comprises a hollow object receiving portion
protruding from the plate, said receiving portion comprising a wall
and a top. The wall of the receiving portion is provided with at
least 3, preferably 6 or more, inward protrusions, protruding
radially inwards from said wall. The packaging comprises, and
preferably consists of, metal.
[0024] The use of metal as a material for the packaging of the
invention, firstly allows production to make good use of any
material stocks used already in many production lines (for instance
cans, containers, etc.), which usually comprise, if not consist of,
metal, and specifically aluminum alloys (for instance in can
production lines). Aside from making use of existing material
stock, thereby increasing efficiency and costs, the choice for
metal is also ecologically inspired, as metal components can be
recycled much easier than plastics which have been heavily used
until now in packaging. Additionally, the use of metal instead of
plastics or other materials (cardboard, etc.), provides an
interesting array of new options due to the technical properties of
metals in terms of deformability, machinability, durability,
robustness, strength, heat resistance (both high and low
temperatures), moisture resistance, pressure resistance, and
others. In particular, in light of the present concept, the
machinability and deformability are particularly useful. Finally,
it greatly simplifies potential integration of electronic circuitry
into the packaging.
[0025] The objective of the invention is to provide for a packaging
that is suitable for easily engaging (and disengaging) with
objects, and in a specific application of the invention containers
such as cans, which comprise a section that is at least partly,
preferably entirely, recessed with respect to an adjoining section.
This recessed section can thus be a full recess, similar to a
groove, extending over the perimeter of said section, or simply be
a number of discrete recesses distributed over the perimeter of the
section. It is important in this light to note that the shape of
the receiving portion can be varied, depending on the objects to be
retained, ranging from cylindrical, to (truncated) conical, cuboid,
prismatic, spherical, etc.
[0026] By providing a hollow receiving portion that fits over the
top of the object, the object can be introduced into said receiving
portion up to an insertion depth where the protrusions on the
hollow receiving portion fit into the recessed section of the
object, thereby clasping it. As the protrusions extend into the
recessed section, the overlying section cannot pass upwards without
the object and/or the receiving portion/protrusions deforming. It
is in this light that the use of metal is particularly
advantageous, as it allows a slight, temporary deformation upon
insertion of the object into the receiving portion, and can
afterwards revert into its original shape, `snapping` into the
recessed portion with the protrusions, without the material
suffering from reduced structural strength. However, when the
packaging is dimensioned appropriately in view of the object it is
to retain, it can be achieved that the retained object cannot be
removed without exerting a predefined amount of force, thereby
avoiding accidental detachment of the object from the packaging.
The metal is strong and flexible enough for the deformation that
allows insertion of the object, and then securely retains said
object. Note that in some applications, the objects may first be
introduced, while the protrusions are only applied to the packaging
upon insertion.
[0027] In a preferred embodiment, the receiving portion is
essentially cylindrical. In a preferred embodiment, the (inner)
radius of the receiving portion ranges between 2.5 cm and 4.0 cm,
specifically between 2.9 cm and 3.4 cm. However, the radius can
easily vary depending on the application at hand (objects to be
retained). For instance, for bottles, the radius will be
significantly lower in most cases where the neck portions of the
bottles are gripped (for instance at the ring, or under the bottle
cap), with the (inner) radius of the receiving portion in many
applications ranging between 1.0 cm and 2.25 cm, preferably between
1.2 cm and 1.8 cm.
[0028] The thickness of the packaging plane (plate) will preferably
be substantially equal over its entire surface, as it can be easily
produced from single sheets of metal, that are cut and/or pressed
into the desired shape.
[0029] The thickness of the packaging plate material is dependent
on the weight of the objects to be held and the amount thereof to
be held per packaging, but should, for most common applications, be
at least 0.05 mm, preferably at least 0.1 mm, more preferably at
least 0.15 mm, even more preferably 0.20 mm, 0.25 mm, or even 0.30
mm. Of course, higher values are equally possible as a lower
boundary, for instance 0.35 mm, 0.4 mm, 0.45 mm, 0.5 mm, 1.5 mm,
2.0 mm, 2.5 mm, 3.0 mm, or even higher.
[0030] An upper boundary will preferably, again applicable in most
cases, be at 2.5 mm, preferably 2.0 mm, more preferably 1.75 mm,
even more preferably 1.5 mm, even more preferably 1.25 mm or even
1.0 mm. In an even further preferred embodiment, the thickness is
at most 0.75 mm, even more preferably at most 0.60 mm or even 0.50
mm. Lower values for the upper boundary are of course possible,
taking into account the above parameters, and the specific material
used.
[0031] The above values were found sufficient for holding 6 to 12
(filled) 330 ml beverage cans, with the packaging being made from
any standard aluminum alloy used to produce the beverage cans
themselves.
[0032] In a preferred embodiment, the receiving portion extends
over a height with respect to the plate of at least 0.25 cm,
preferably at least 0.5 cm, more preferably at least 0.75 cm.
Preferably, the receiving portion extends over a height with
respect to the plate of at most 5.0 cm, preferably at most 3.5 cm,
more preferably at most 2.0 cm. Again, variation may apply
depending on the type of object.
[0033] A further advantage of the hollow receiving portion cupping
the top part of the object allows (the top part of) the object to
be shielded from environmental factors, and in particular from
pollutants and dirt. Considering that a margin (at least 0.10 mm)
is allowed between the said wall of the hollow receiving portion
and the object, air flow is maintained, allowing any possible
fluids present to be drained easily as well as preventing growth of
mold.
[0034] In a preferred embodiment, the retention means will be
provided in a 2.times.3 grid, or a 2.times.4, 3.times.3, 3.times.4,
3.times.5, 3.times.6, 3.times.8, 2.times.5, 2.times.6, 2.times.8,
etc. grid.
[0035] In a preferred embodiment, each inward protrusion on the
inner wall of the hollow receiving portion of the packaging is
substantially local and does not extend over the perimeter of the
said wall. Localized protrusions, such as dimples, have little
impact on the overall strength of the wall. Additionally, these can
be applied easily via single points of pressure at predetermined
locations.
[0036] In a preferred embodiment, each of the said inward
protrusions extends over the perimeter of the said wall over a
predetermined length of at least 0.25 cm, preferably at least 0.5
cm, more preferably at least 0.75 cm or 1.0 cm. Longer protrusions
assure a stronger support of object by the protrusions, ensuring
that the object is not released accidentally (for instance due to a
sudden movement or stop).
[0037] Note that in a possible embodiment, a mix can be used of
local inward protrusions and elongate protrusions (extending over
the perimeter of the predetermined length). These can be provided
alternately, or alternately according to a different ratio than 1
to 1 (for instance 2:1, 1:2, 3:1, 1:3). Even more, the local inward
protrusion can be provided at edge sections of the hollow receiving
portions (edge of the carrier), or inversely, the elongate
protrusions can be provided there.
[0038] It is noted that, when the packaging is loaded with objects
and carried by a consumer, high pressure zones are established,
namely where more pressure is exerted by the objects on the
packaging due to bending of the packaging when supporting the
weight of the objects. These high-pressure zones can for instance
be provided with elongate protrusions to better support the weight
there. The location of the high-pressure zones can for instance be
determined via finite element analysis.
[0039] In a preferred embodiment, the inward protrusions comprise
cut-out tabs from the wall, said tabs being cut out from the wall
with an essentially U-shaped cut, whereby the U-shape is open
facing either towards the top of the hollow receiving portion, or
facing away therefrom, and whereby the tabs are bent radially
inwards with respect to the wall (after introduction of the
object), thereby defining an inscribed perimeter that is
dimensioned not to allow passage of the object without pushing the
tabs outward. The wall itself, without the tabs, is dimensioned to
allow unhindered passage of the object
[0040] The cut-out tabs allow easy deformation to create inward
protruding sections that can prevent accidental release of the
object out of the receiving portion. Again, simply pressing the
tabs inwards (or the elastic return of the tabs to their original
position) after introduction of the object, allows the tabs to
`enter` the recessed portion of the object.
[0041] Preferably, said tabs have a length (distance over which
they extend from the wall) ranging between 0.1 mm up to 5.0 mm,
depending on the desired margin between the wall and the shape of
the part of the object to be introduced. The length can thus be at
least and/or at most 0.2 mm, 0.3 mm, 0.5 mm, 0.75 mm, 1.0 mm, 1.5
mm, 1.75 mm, 2.0 mm, 2.25 mm, 2.5 mm, 2.75 mm, 3.0 mm, 3.25 mm, 3.5
mm, 3.75 mm, 4.0 mm, 4.25 mm, 4.5 mm, 4.75 mm. However, higher
values are equally possible.
[0042] In a preferred embodiment, the inward protruding sections
protrude inwardly from the wall over a distance of at most 1.5 cm,
preferably at most 1.25 cm, more preferably at most 1.0 cm.
Possibly, the protruding sections extend over at most 0.75 cm, 0.5
cm, 0.25 cm or less.
[0043] Preferably, the width (distance over which each tab extends
along the perimeter of the wall) ranges between 1.0 mm up to 2.5
cm, and can thus at least and/or at most 1.5 mm, 2.0 mm, 2.5 mm,
3.0 mm, 3.5 mm, 4.0 mm, 4.5 mm, 5.0 mm, 6.0 mm, 7.0 mm, 8.0 mm, 9.0
mm, 10.0 mm, 11.0 mm, 12.0 mm, 13.0 mm, 14.0 mm, 15.0 mm, 16.0 mm,
17.0 mm, 18.0 mm, 19.0 mm, 20.0 mm, 21.0 mm, 22.0 mm, 23.0 mm, 24.0
mm. However, higher values are equally possible.
[0044] It is understood that limiting the width of the tabs to a
maximum of 20.0 mm, or preferably 15.0 mm, or even more preferably
10.0 mm (or even less, such as 5.0 mm), provides great advantages.
The deformation necessary to create the protrusions is limited in
such an embodiment, which ensures that the metal structure of the
packaging is not impacted too highly in regard of structural
strength and flexibility. By creating `longer` protrusions, the
metal is stressed much further, which can cause metal fatigue, but
overall creates a strong reduction in thickness over a longer
section of the packaging. Such a reduction cannot be avoided, but
can only be reduced to a minimum, by ensuring that the protrusions
are localized (i.e., do not extend over a maximal width) as
proposed.
[0045] The number of cut-out tabs is dependent on width and length,
and ranges anywhere between 3 and 50, and can thus be at least
and/or at most 4, 5, 6, 7, 8, 10, 12, 15, 18, 20, 25, 30, 35, 40,
45. However, higher values are equally possible.
[0046] In some embodiments with a cylindrical receiving portion,
the radius of the wall is at most 1.00 mm, preferably at most 0.90
mm, more preferably at least 0.80 mm or 0.75 mm, 0.70 mm, 0.65 mm,
0.60 mm, 0.55 mm, 0.50 mm, larger than the maximal diameter of the
portion of the object to be inserted into the receiving portion.
For cans and other cylindrical containers, this will be the margin
on top of the seam portion, as this usually is the widest section
of the container. In bottles, this will relate to the neck portion
only, disregarding the body.
[0047] In a preferred embodiment, the inward protrusions are
positioned with constant intervals along the perimeter of the wall,
said inward protrusions defining the vertices of a regular
polygon.
[0048] It is noted that it can be further advantageous to provide
additional protrusions at established pressure zones, where a held
object, such as a container, tends to put more pressure on the
carrier, thereby ensuring that the object cannot accidentally
release itself during use.
[0049] In a preferred embodiment, the plate comprises one or two
finger loops extending through the plate, preferably said finger
loops comprising a substantially circular perimeter, whereby each
of said finger loops is positioned adjacent to four retention means
whereby said four retention means define a square with the finger
loop at the center of said square.
[0050] In a preferred embodiment, the hollow receiving portions are
closed at the distal surface of the packaging. This means of course
that the walls and the top of the receiving portions are closed,
increasing the structural strength of the packaging. The skilled
person knows that removing portions, by cutting, stamping or other
methods, of a metal structure or sheet strongly impact the
structural strength, as well as severely reduce the flexibility
thereof, which is necessary to allow the tabs or protrusions to
flex. Additionally, the resulting edges are typically sharp,
presenting a safety hazard for the public, and can potentially
damage a held container.
[0051] In a preferred embodiment, the packaging is essentially
closed over its entire upper surface (apart from optional finger
loops and/or other small openings). It is noted that, especially in
view of sleek containers (low radius variation of seam portion
versus rest of the container), having a `full` carrier is crucial
in ensuring the structural strength of the carrier, since the
margins between neighboring receiving portions will be small
(thereby allowing the containers to be stacked adjoiningly).
Without the receiving portion improving the structural strength,
the material present in the small margins between the receiving
portions would need heavier reinforcement in order to hold the
weight of the containers. Note that this applies to the above
embodiment as well, where the receiving portions are closed at
their upper surface.
[0052] In a preferred embodiment, the packaging consists of metal,
preferably of aluminum and/or an aluminum alloy. Using metal has
clear advantages aside from the ecological and economical aspect,
such as better resistance against most chemicals, temperature
fluctuations, impact resistance, tear resistance, strength,
etc.
[0053] In a preferred embodiment, each hollow receiving portion is
essentially radially symmetrical around an axis perpendicular to
the general flat packaging itself (usually cylindrical, though
variations, such as a truncated cone or combinations of multiple
cylinders and/or truncated cone sections of different radii are
equally possible). The distance between the centers of directly
(not diagonally) adjoining receiving portions is dependent on the
intended object to be held by the packaging, and is substantially
equal to, or slightly higher than, the maximal diameter of the
objects. Typically, a small margin is allowed for some flexibility,
but this will generally not exceed a few mm in order to allow dense
stacking of the retained objects. The smallest distance between
neighboring receiving portions will be between a few mm (for
instance 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8mm, 9 mm) up to
a few cm (for instance 1 cm, 1.1 cm, 1.2 cm, 1.3 cm, 1.4 cm, 1.5
cm, 1.6 cm, 1.7 cm, 1.8 cm, 1.9 cm, 2.0 cm, 2.25 cm, 2.5 cm, 2.75
cm, 3.0 cm, 3.5 cm, 4.0 cm).
[0054] In a possible embodiment, the protrusions on the inner wall
of the hollow receiving portions are provided non-symmetrically
over the perimeter of the said wall. Such a formation can allow for
certain directions to allow an easier release of the held object
when applying an intended force in a certain direction. For
instance, more and/or longer protrusions can be provided over
certain regions (preferably in such a case on both opposite sides
of the wall) to create a stronger retention, while less and/or
shorter protrusions at other regions to provide a `favored` release
directions. In a particular embodiment, more and/or longer
protrusions are provided in regions that are positioned around the
intersection of a line connecting the center of the retention means
with the center of the packaging (or the closest finger loop or
other gripping means) with the wall. This way, when carried, the
objects will generally, under the influence of gravity, tilt along
this line, creating more pressure there. The added support
increases the insurance that the objects do not release. Inversely,
by applying force perpendicular to the above line, an easy release
is possible.
[0055] Even further, one can provide more and/or longer protrusions
at the far side of the retention means (with respect to the center
of the packaging) than at the close side of the retention means.
This way, when carrying the packaging, the objects will mainly rest
on the stronger far-side protrusions. When wishing to detach an
object, the user will apply force to tilt the object with its
bottom away from the center, thereby overcoming the lesser
retention force of the inner-side protrusions and allowing easy
release.
[0056] The invention at hand is particularly advantageous for
transport of cans and containers, and especially so-called sleek
containers or cans, where the cans have a radius that does not vary
greatly over the entire height.
[0057] In a second aspect, the invention pertains to an assembly
comprising a secondary packaging and a plurality of objects, said
secondary packaging being a packaging according to the invention of
the first aspect. Each of the objects comprises a recessed
cross-sectional outer section at a first end of the object, said
recessed outer section being at least partly, preferably entirely,
inwardly recessed with respect to an adjoining outer section
adjoining said recessed outer section, said adjoining outer section
proximal to the first end of the object.
[0058] Additionally, the receiving portion without considering the
protrusions is adapted to allow insertion of a section of the
objects at said first end, wherein the protrusions extend inwardly
over a distance so as to all extend into the recessed outer section
when the object is inserted into the receiving portion with the
first end of the object.
[0059] In a variation, the invention pertains to an assembly
comprising a first and a second secondary packaging and a plurality
of objects, said first and secondary packaging each being a
packaging according to the invention of the first aspect.
[0060] Each of the objects comprises a first and a second recessed
cross-sectional outer section on opposite ends of the objects, said
first recessed outer section at least partly, preferably entirely,
inwardly recessed in view of a first adjoining outer section
adjoining said first recessed outer section, said first adjoining
outer section proximal to the first end of the object, and said
second recessed outer section at least partly, preferably entirely,
inwardly recessed in view of a second adjoining outer section
adjoining said second recessed outer section, said second adjoining
outer section proximal to the second end of the object.
[0061] Herein, the receiving portion of the first secondary
packaging without considering the protrusions thereof is adapted to
allow insertion of a section of the objects at said first end, and
wherein the protrusions extend inwardly over a distance so as to
all extend into the first recessed outer section when the object is
inserted into the receiving portion with the first end of the
object.
[0062] Lastly, the receiving portion of the second secondary
packaging without considering the protrusions thereof is adapted to
allow insertion of a section of the objects at said second end, and
wherein the protrusions extend inwardly over a distance so as to
all extend into the second recessed outer section when the object
is inserted into the receiving portion with the second end of the
object.
[0063] The advantages of the above embodiment are clear, in that it
provides a sandwiched carrier structure, which can then allow
further interconnection of the first and second packaging (loops,
hooks, etc.).
[0064] Note that in all embodiments, a margin is ensured between
the dimensions of the receiving portion and that of the (relevant
part of the) object to be introduced, to ensure a good fit. This
way, the protrusions need only extend over a small distance to
ensure properly gripping the objects in the recessed section, and
little volume is wasted.
[0065] In a preferred embodiment, the objects are cylindrical
containers, preferably cans, comprising a double seam along the
perimeter of the first end of the container, said double seam
functioning as the adjoining outer section proximal to the first
end of the object.
[0066] Alternatively, the objects may be bottles, with the ring
(widened section at neck) and/or the closure means of the bottle
(bottle cap, cork or other), functioning as the adjoining outer
section proximal to the first end of the object.
[0067] In a third aspect, the invention pertains to the use of a
(secondary) packaging according to the invention described in this
document, for holding a plurality of objects, and specifically
containers, in particular cans for liquids and/or food, and
especially for beverage containers. Most particularly, it is aimed
at so-called `sleek` or `slim` cans, with low variation on the
radius of the seam portion at the top of the can, and the radius of
the bulk of the can.
[0068] Said packaging comprises a plate having an upper outside
surface and a bottom outside surface. The plate comprises a
plurality of retention means, preferably said retention means being
provided in a grid formation on the plate. Each of the retention
means comprises a hollow receiving portion protruding from the
plate, said receiving portion comprising a wall and a top. The wall
of the receiving portion is provided with at least 3, preferably 6
or more, tabs which are convexly detached from the wall and
connected to the wall along one side of the tab, whereby the tab is
adapted to substantially elastically bend outward (and inward) with
respect to the wall.
[0069] Each of the tabs is provided with a protruding section
extending inwardly in the hollow portion. The packaging comprises,
and preferably consists of, metal.
[0070] The protruding sections preferably are all positioned at a
substantially common fixed height with respect to the plate.
[0071] Note that most, if not all, of the further embodiments of
the first aspect of the invention are also applicable to this third
aspect.
[0072] The above aspect allows for an easy application of the
packaging to objects which comprise a recessed section, as
discussed previously, as the tabs will in practice function similar
to a snap-fit connector. The tab itself is somewhat flexible to be
bent to a position in which the protruding sections on the tabs are
pushed outward, thereby allowing the insertion of the object, but
it largely returns to its original position when the protruding
sections snap into the recessed section of the objects. It should
be noted that the deformation to this position is at least partly
elastic deformation, ensuring that the tab returns to a position
preventing return of the object. In a preferred embodiment, said
deformation is at least 1 to 10% elastic deformation, more
preferably at least 25%, 40%, 50%, 60%, 70%, 80%, 90% up to 100%.
It is noted that even a return of 1% should in theory be sufficient
with many types of snap-fit connections, as return is prevented due
to the shape of the protruding sections. The application of the
above principle allows an easy, intuitive grip on the objects.
[0073] Additionally, the use of metal instead of plastics or other
materials (cardboard, etc.), provides an interesting array of new
options due to the technical properties of metals in terms of
deformability, machinability, durability, robustness, strength,
heat resistance (both high and low temperatures), moisture
resistance, pressure resistance, and others. In particular, in
light of the present concept, the machinability and deformability
are particularly useful.
[0074] It should be noted that the applicant specifically envisions
the packaging to be preferably made from a flat plate of metal, by
pressing means to shape the plate in the desired form, including
receiving means, after which a limited number of cuts are applied
(and/or other actions to create the tabs) to the receiving means,
after which the tabs are deformed to create the protruding
sections, preferably again via pressing. It should be appreciated
that this form of production is without any additional material
being introduced to the base plate. Moreover, the plate material
does not need to be molten down, nor heated significantly in order
to allow being processed.
[0075] Preferably, the protruding sections have a protrusion
portion most distal to the top of the hollow receiving portion,
which protrusion portion slopes inward to the centre of the
receiving portion closer to the top of the receiving portion,
thereby ensuring a smooth introduction of the section of object
preceding the recessed section past the protruding sections. The
slope of said protrusion portion preferably is comprised between
15.degree. and 75.degree. with respect to the wall, more preferably
between 25.degree. and 65.degree., even more preferably between
35.degree. and 55.degree..
[0076] Preferably, the protruding sections have a portion most
proximal to the top of the hollow receiving portion, which
protrusion portion slopes inward to the centre of the hollow
receiving portion further from the top thereof. In a preferred
embodiment, said protrusion portion slopes inward under an angle
with respect to the wall of at least 60.degree., preferably at
least 75.degree. and most preferably about 90.degree.. Note that in
some embodiments, an angle can be obtained of even more than
90.degree.. This further ensures that objects that are `snapped` by
the protruding sections, are reliably retained (avoiding accidental
release of the object).
[0077] Preferably, each hollow receiving portion is provided with
at least 3, preferably at least 4, 6, 8 tabs (depending on the
positioning of the tabs). Embodiments can be envisioned with
thinner tabs (along the perimeter), but with a high number thereof,
preferably grouped over a number of clusters (for instance, 4
clusters of 2, 3, 4 tabs).
[0078] In most cases, the (inner) radius of the receiving portion
will be around 2.5 cm to 4.0 cm, specifically between 2.9 cm and
3.4 cm, but can vary depending on the application. For instance,
for bottles, the radius will be significantly lower between 1.0 cm
to 2.0 cm, specifically between 1.3 mm and 1.7 mm. For larger
objects, the radius can be significantly higher than 4.0 cm (for
instance, a carrier for transporting kegs).
[0079] In a preferred embodiment, the protruding sections on at
least one, preferably on each tab extend across the entire tab in
the plane parallel to the plate of the packaging.
[0080] Considering the protruding sections actually form a `grip`
that positions itself under the section adjoining the recessed
section of the object that is introduced in the hollow receiving
portion, the dimension along which the protruding sections
effectively extend under said adjoining section portion, should be
maximized, ensuring the necessary support for an introduced object.
This, especially combined with a specific snap-fit form of the
protruding sections (from the plate toward the top of the hollow
receiving portion: a gentle slope upward at first toward the
centre, strong or even perpendicular slope away from the centre),
allows easy insertion and strong retention.
[0081] In a preferred embodiment, the receiving portions are
provided in a rectangular grid formation on the plate, said
rectangular grid defining an X direction in the plane of the plate
and a Y direction in the plane of the plate, said Y direction
perpendicular to the X direction, whereby the tabs are positioned
in four zones on the walls, which zones lie centered around the
intersection of the bisectors of the X and Y direction through the
centre of the receiving portions with the walls, preferably whereby
each zone extends over at most 1/6 of the perimeter of the
wall.
[0082] It should be noted that by creating a tab in the wall of the
hollow receiving portions, they are somewhat weakened locally. In
this light, the tab can be in `zones` staggered with respect to the
`border zones` between neighboring hollow receiving portions, where
greater forces will be present on the walls as well. By staggering
these, optimal structural strength is ensured.
[0083] When considering the placement of the receiving portions in
a typical rectangular grid formation, one can consider the axes
connecting the centres of directly neighboring receiving portions
of a first receiving portion, as intersecting with the wall of the
first hollow receiving portion at angles of 0.degree., 90.degree.,
180.degree. and 270.degree. with respect to the centre of the first
hollow receiving portion. The zones with tabs then lie centered on
the walls at angles of 45.degree., 135.degree., 225.degree. and
315.degree. with respect to the centre of the first receiving
portion. The above is from a top view of the packaging,
perpendicular to the plate thereof.
[0084] Preferably, the zones each separately extend over a circle
sector with a central angle of at least 30.degree., preferably at
least 20.degree. or even 25.degree., 30.degree., 35.degree.,
40.degree. or 45.degree. minimally. The maximal central angle is
somewhat limited by the `border zones` between neighboring
receiving portions, and is preferably maxed out at 75.degree., and
more preferably at 70.degree., 65.degree., 60.degree., 55.degree.,
50.degree. or 45.degree..
[0085] In a preferred embodiment, the side of the tab connecting
the tab to the wall is substantially parallel to the plate of the
packaging.
[0086] In a preferred embodiment, the retention tabs are detached
from the wall along a U- or V-shaped edge. These shapes are
especially suited for the tabs in order to give them a solid base
for connection with the wall, as well as providing sufficient
surface for the protruding sections (especially the U-shape). It
should be understood that the lines of U and V specifically demark
the separation of wall and tab.
[0087] In a specifically preferred embodiment, the tabs extend from
the side connecting the tab to the wall in a direction toward the
top of the receiving portion. In an alternative specifically
preferred embodiment, the tabs extend from the side connecting the
tab to the wall in a direction away from the top of the receiving
portion.
[0088] The above two examples allow the tabs to flex/bend optimally
when faced with the outward pressure of the wider section of an
object that is being introduced. Additionally, the risk of plastic
deformation is minimal, as the deformation is spread out over the
entire length of the tab (distance from the connection to the wall
to most distal point of the tab). Low local deformation keeps
everything in the elastic deformation range, ensuring the tab to
snap back properly and thereby `lock up` the object once the wider
portion passes the protruding sections.
[0089] In a preferred embodiment, each tab, and preferably also the
protruding section thereon, extends over at least 2.5%, preferably
at least 5.0%, more preferably at least 7.5%, of the perimeter of
the wall. In some embodiments, the tabs (and preferably the
protruding sections thereon) each extend over at least 10.0%,
12.5%, 15% or 20% of the perimeter of the wall. It should be noted
that too narrow tabs may provide insufficient strength to hold the
object after introduction and can bend back separately from each
other, producing a cascading effect. It is in this light that it is
also not recommended to provide a high amount of separate tabs
instead of one or two wider tabs.
[0090] In a preferred embodiment, the protruding sections in total
extend over at least 25% of the perimeter of the wall, preferably
over at least 30%, more preferably over at least 40%. The applicant
notes that the above lower limits ensures proper retention of an
object, such as a container, once the wider portion passes the
protruding sections during introduction of the container in the
hollow receiving portion, especially for the usual snap-fit
protruding sections (90.degree. angle upon return).
[0091] In a preferred embodiment, the tab extends from the side
connecting said tab to the wall over a distance of at least 2.0 mm,
or at least 2.5 mm, preferably at least 3.0 mm, more preferably at
least 3.5 mm, most preferably at least 4.0 mm, to the most distal
point of the tab with respect to the connecting side.
[0092] In general, said tabs can have a length varying between 0.1
mm up to 5.0 mm, depending on the margin between the wall and the
seam portion radius. The length can thus be at least and/or at most
0.2 mm, 0.3 mm, 0.5 mm, 0.75 mm, 1.0 mm, 1.5 mm, 1.75 mm, 2.0 mm,
2.25 mm, 2.5 mm, 2.75 mm, 3.0 mm, 3.25 mm, 3.5 mm, 3.75 mm, 4.0 mm,
4.25 mm, 4.5 mm, 4.75 mm. Nonetheless, higher values are equally
possible.
[0093] The width (distance over which the tab extends along the
perimeter of the wall) can vary between 1.0 mm up to 2.5 cm, and
can thus at least and/or at most 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm,
3.5 mm, 4.0 mm, 4.5 mm, 5.0 mm, 6.0 mm, 7.0 mm, 8.0 mm, 9.0 mm,
10.0 mm, 11.0 mm, 12.0 mm, 13.0 mm, 14.0 mm, 15.0 mm, 16.0 mm, 17.0
mm, 18.0 mm, 19.0 mm, 20.0 mm, 21.0 mm, 22.0 mm, 23.0 mm, 24.0 mm.
However, higher values are equally possible.
[0094] The number of tabs is dependent on width and length, and
ranges anywhere between 3 and 50, and can thus be at least and/or
at most 4, 5, 6, 7, 8, 10, 12, 15, 18, 20, 25, 30, 35, 40, 45.
However, higher values are equally possible.
[0095] A sufficient length of the tab is desirable, as this
optimally spreads the deformation upon passage of the seam portion,
thereby ensuring that no or very little plastic deformation to the
tab is inflicted.
DETAILED DESCRIPTION OF THE FIGURES
[0096] FIGS. 1A, 1B and 1C show the details of a possible
embodiment of a secondary packaging (1) according to the invention,
for the particular application of holding containers, though the
person skilled in the art may readily adapt this for holding most
types of objects. The same applies to the other embodiments shown
in the Figures.
[0097] As can be seen, the packaging (1) is essentially closed at
the upper surface, aside from the two finger loops (6) which are
distanced to allow easy handling by a person (typically between 10
cm and 20 cm apart).
[0098] The packaging (1) comprises a plate (8) provided with a
number of receiving portions (2) in a grid formation (3.times.2 in
this case), effectively forming a rectangular formation. The
distances between the receiving portions (2) is equal in this case
(although variations are possible), with a margin (7) present
between two adjoining receiving portions (2).
[0099] Each receiving portion comprises a wall (3) and a top (4),
with the wall (3) being generally cylindrical (again, variations
are possible). In the particular embodiments of FIGS. 1A, 1B, 1C,
2A and 2B, the top comprises a first flat ring (9) with a central
dome (10) that is slightly raised with respect to the flat ring
(9).
[0100] The cross-sectional view of FIG. 1B clearly shows a possible
embodiment of an inward protrusion (5), in this case a small dimple
on the wall (3). As can be seen, this leaves a sufficient distance
above the protrusion (5) to the top section (4, 9) wherein the
ledge (12) of a container (11) is held. In this version, four
protrusions (5) are provided on the wall (3) at equidistant
locations (defining a square).
[0101] FIG. 1C shows another cross-section of the packaging of FIG.
1A. Of particular note here is the rolled edge (15), to avoid
cutting or hurting users.
[0102] FIGS. 2A and 2B show small variations on the preceding
Figures, in that a higher number of protrusions (5) are provided on
the wall (3), in this case twelve in total, again positioned at
equidistant locations, thereby defining a regular dodecagon.
[0103] In both cases, the protrusions (5) extend inwards
sufficiently to forms an inscribed circle with lower radius than
the ledge (12) of a container (11), namely the adjoining outer
section (12), but with higher (or at least equal) radius than the
portion directly inferior (13) to the ledge (12), namely the
recessed outer section (13) of the container.
[0104] FIGS. 3A, 3B and 3C finally show a number of containers
(11), FIG. 3A showing a can, FIG. 3B showing a jar with lid, and
FIG. 3C showing a bottle with cap. As can be appreciated, these
examples are not limiting but merely illustrative for the
concept.
[0105] Each of the containers (11) has a ledge (12), in the first
example the actual seam of the can where the lid and wall (14) of
the can are adjoined, in the second example the lid of a jar, and
in the third example the cap (be it screw caps, pull caps, or
others) of the bottle.
[0106] Beneath this, a recessed portion (13) is present directly
inferior to the ledge (12) where the protrusions extend inwardly to
once applied.
[0107] FIGS. 4A, 4B and 4C show the details of a possible
embodiment of a secondary packaging (1) according to the fourth
aspect of the invention. As can be seen, the packaging (1) is
essentially closed at the upper surface, aside from the two finger
loops (6) which are distanced to allow easy handling by a person
(typically between 10 cm and 20 cm apart), and aside from the
cut-out tabs (5).
[0108] The packaging (1) comprises a plate (8) provided with a
number of receiving portions (2) in a grid formation (3.times.2 in
this case), effectively forming a rectangular formation. The
distances between the receiving portions (2) is equal in this case
(although variations are possible), with a margin (7) present
between two adjoining receiving portions (2).
[0109] Each receiving portion comprises a wall section (3) and a
top (4), with the wall (3) being generally cylindrical (again,
variations are possible). In the particular embodiments of FIGS.
4A, 4B, 4C, the top comprises a first flat ring (9) with a central
dome (10) that is slightly raised with respect to the flat ring
(9).
[0110] The tabs (5), shown in more detail on FIG. 4C, are provided
in 4 zones, whereby each zone has two U-shaped tabs (5). Each tab
is provided with an inwardly extending protruding section (15), in
the shape of a V-bend, whereby the lower slope is gradual, and the
upper slope is more abrupt, approaching a 90.degree. angle with the
wall or feet of the tab.
[0111] In both cases, the tabs (5) extend inwards sufficiently to
forms an inscribed circle with lower radius than the ledge (12) of
a container (11), but with higher (or at least equal) radius than
the portion directly inferior (13) to the ledge (12).
[0112] FIG. 5A shows a cross-section of a receiving portion (2)
where the tab (5) extends downwards away from the top (4) of the
receiving portion (2), having a U-shaped cut-out with the U open
towards the top (4). A protruding section (15) is present that
extends inwardly, and has a V-shaped cross-section, with the V
being open towards the centre of the receiving portion (2). The
lower lip of the protruding section (15) is provided to catch under
the ledge of a container once it is introduced, after the tab (5)
is flexed (see arrows) during passage of the ledge past said lower
lip of the protruding section (15).
[0113] FIG. 5B shows an alternative embodiment, where the V-shape
of the cross-section 20 of the protruding section is open towards
the exterior of the receiving portion (2), with the `middle` of the
V catching under the ledge of a container once it is introduced,
after the tab (5) is flexed (see arrows) during passage of the
ledge past said `middle` of the protruding section (15).
[0114] Note that similar embodiments are possible where the tabs
extend upwards towards the top (4) of the receiving portion
(2).
[0115] It is supposed that the present invention is not restricted
to any form of realization described previously and that some
modifications can be added to the presented example of fabrication
without reappraisal of the appended claims. For example, the
present invention has been described referring to containers in
general, but it is clear that the invention can be applied to cans,
jars, bottles for instance with the contents being of limited
importance.
* * * * *