U.S. patent application number 17/627521 was filed with the patent office on 2022-08-25 for object carrier.
The applicant listed for this patent is Anheuser-Busch InBev nv. Invention is credited to Federico BUJA, Keenan THOMPSON.
Application Number | 20220267069 17/627521 |
Document ID | / |
Family ID | 1000006380503 |
Filed Date | 2022-08-25 |
United States Patent
Application |
20220267069 |
Kind Code |
A1 |
THOMPSON; Keenan ; et
al. |
August 25, 2022 |
OBJECT CARRIER
Abstract
The invention pertains to a planar packaging (1) adapted to
retain a plurality of objects (12), 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 |
|
|
Family ID: |
1000006380503 |
Appl. No.: |
17/627521 |
Filed: |
July 16, 2020 |
PCT Filed: |
July 16, 2020 |
PCT NO: |
PCT/EP2020/070206 |
371 Date: |
January 14, 2022 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
B65D 71/50 20130101 |
International
Class: |
B65D 71/50 20060101
B65D071/50 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 16, 2019 |
BE |
2019/5463 |
Claims
1. Packaging for holding a plurality of objects, preferably
containers, said packaging being substantially planar and
comprising a plate; said plate being provided with a plurality of
apertures for holding the objects, said apertures extending through
the plate, preferably said apertures being provided in a grid
formation comprising a longitudinal direction and a transverse
direction, more preferably whereby said apertures are equally
spaced apart in both the longitudinal and the transverse direction;
wherein each of the apertures comprises a perimeter and one or
more, preferably at least three, resilient retention tabs are
provided on said perimeter, extending from said perimeter at least
partially inwardly; wherein the packaging substantially comprises,
and preferably consists of, metal, wherein at least one, preferably
each, retention tab is coiled, preferably whereby said coiled
retention tabs comprising an outer edge perimeter and an inner edge
perimeter, the ratio of said inner edge perimeter to said outer
edge perimeter being at most 0.7 and at least 0.2.
2. Packaging according to claim 1, wherein the retention tabs are
positioned over regular intervals on the perimeter of the
apertures, wherein said apertures being provided in a grid
formation comprising a longitudinal direction and a transverse
direction, more preferably whereby said apertures are equally
spaced apart in both the longitudinal and the transverse direction,
and wherein each aperture is rotated over about 180.degree. divided
by the number of retention tabs with respect to each adjacent
aperture with respect to each adjacent aperture positioned in both
said longitudinal direction and transverse direction.
3. Packaging according to claim 1, wherein the coiled retention
tabs have a varying thickness over the width of the tab, preferably
wherein the coiled retention tabs have a thickness profile which is
highest centrally and diminishes towards the periphery of each
tab.
4. Packaging according to claim 1, wherein the retention tabs are
provided non-symmetrically over the perimeter of the aperture.
5. Packaging according to claim 1, wherein the retention tabs of an
empty aperture protrude at least partially inwardly from said
perimeter of each aperture at a first angle with respect to the
plate of said packaging; whereby said retention tabs undergo an at
least partially elastic deformation upon insertion of the objects,
and whereby the retention tabs of an aperture occupied by an
object, protrude at least partially inwardly from said perimeter at
a second angle with respect to the plate of said packaging;
preferably whereby said first and second angle are substantially
different.
6. Packaging according to claim 5, wherein the first angle ranges
between 10.degree. and 60.degree. with respect to the plate,
preferably between 20.degree. and 55.degree., more preferably
between 40.degree. and 50.degree.; and wherein the second angle
ranges between 20.degree. and 70.degree. with respect to the plate,
preferably between 30.degree. and 65.degree., more preferably
between 40.degree. and 60.degree..
7. Packaging according to claim 1, wherein the plate has a
thickness ranging between 0.05 mm and 1.0 mm, preferably between
0.1 mm and 0.25 mm.
8. Packaging according to claim 1, wherein the retention tabs
extend from the perimeter of the convex hull of the perimeter of
the aperture over a minimal distance of 0.50 mm, preferably 1.0
mm.
9. Packaging according to claim 1, wherein the perimeter of the
apertures is polygonal, preferably regularly polygonal, whereby the
retention tabs are provided on the edges of said substantially
polygonal perimeter.
10. Packaging according to claim 1, wherein each retention tab is
provided with one or more indented recess sections provided at the
non-attached side of each retention tab, said indented recess
section being indented towards the perimeter of the aperture,
thereby forming a humped structure in the retention tab.
11. Packaging according to claim 1, wherein around at least one,
preferably all, of the apertures, the plate is provided with one or
more weakened line sections at zones adjoining to the perimeter of
said aperture wherefrom the retention tabs extend, preferably
whereby said, the said weakened line sections define a generally U
or V shaped form, and whereby the opening of said U or V shaped
form is directed towards the perimeter of aperture.
12. Packaging according to claim 11, wherein said weakened line
sections are defined by a reduced thickness of the plate by at
least 25%, preferably at least 50%, more preferably at least 75%,
most preferably by 100% with respect to the rest of the plate.
13. Packaging according to claim 1, wherein around at least one,
preferably all, of the apertures, the plate is provided with one or
more weakened line sections at zones adjoining to the perimeter of
said aperture wherefrom the retention tabs extend, whereby the one
or more weakened line sections extend over at least part of said
perimeter wherefrom the retention tabs extend.
14. 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.
15. Packaging according to claim 1, 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.
16. Packaging according to claim 1, wherein the packaging consists
of metal, preferably of aluminum and/or an aluminum alloy.
17. 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 aperture
without considering the retention tabs is adapted to allow passage
of the objects at said first end at least up to the recessed outer
section, wherein the retention tabs extend inwardly over a distance
so as to all extend into the recessed outer section when the object
is inserted into the aperture with the first end of the object.
18. 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 aperture of
the first secondary packaging without considering the retention
tabs thereof is adapted to allow passage of the objects at said
first end at least up to the first recessed outer section, and
wherein the retention tabs extend inwardly over a distance so as to
all extend into the first recessed outer section when the object is
inserted into the aperture with the first end of the object;
wherein the aperture of the second secondary packaging without
considering the retention tabs thereof is adapted to allow passage
of the objects at said second end at least up to the second
recessed outer section, and wherein the retention tabs extend
inwardly over a distance so as to all extend into the second
recessed outer section when the object is inserted into the
aperture with the second end of the object.
19. Assembly according to claim 17, 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 materials for holding a plurality of objects, in
particular for holding a plurality of containers. More in
particular, the invention pertains to secondary packaging materials
for holding beverage cans comprising a recess and/or a ledge; which
in the case of e.g. a beverage can, is formed by its seam.
BACKGROUND
[0002] Carriers are used in retail environments to secure a group
of objects, such as containers or receptacles, so that they may be
grasped and carried as a single unit. Manufacturers using container
carriers, such as beverage companies, may desire to purchase
several container carriers for packaging and ease of distribution
of their product. While lighter products may be carried with
substantially flat container carriers, heavier products, such as
large containers of liquids, usually require container carriers
with three-dimensional support structures to support their weight.
Such container carriers are often manufactured in one location and
then shipped to a different location for application of the
carriers to the containers. Packaging and shipping container
carriers with such three-dimensional structures and heights can be
a challenge to conduct efficiently, since their increased size
often results in fewer container carriers per shipping box and
increased shipping cost per container carrier. Traditionally such
carriers are produced from cardboard. However, carriers made from
cardboard are susceptible to breakage or tearing, especially when
wet.
[0003] Alternatively (or in combination with paper/cardboard), use
of plastic is strongly dissuaded for secondary packaging, as it is
often discarded incorrectly, thereby creating or increasing
pollution problems (plastic rings for holding cans). Even when
overlooking incorrect disposal, non-negligible amounts of plastic
tend to end up on landfills, taking up space and breaking down only
over very long periods of time (several centuries). Finally, 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. Aside from the aforementioned
issues, using plastics as secondary packaging requires a lot of
materials in terms of volume; more than is often desired to ensure
structural strength to hold the containers.
[0004] There remains a need in the art for improved secondary
packaging for holding containers with a recess and/or ledge,
radially protruding seam portion or recess portion that, amongst
others, aims to facilitate its production, reduce material waste,
as well as providing an improved strength.
SUMMARY OF THE INVENTION
[0005] In a first aspect, the invention pertains to a packaging
according to the claims.
[0006] 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.
[0007] Further advantages, features, and examples of the present
invention are disclosed in the detailed description.
DETAILED DESCRIPTION OF THE INVENTION
[0008] The invention has been summarized in the corresponding
section above. In what follows, the invention is described in
detail, preferred embodiments are discussed, and the invention is
illustrated via examples.
[0009] In a particular but non-exclusive application, the present
invention concerns a secondary packaging for holding a plurality of
containers. Said containers comprise a wider section at a first end
of the container, and an underlying section below said wider
section that is at least partly recessed with respect to said wider
section.
[0010] 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 in the art
to which this invention belongs. By means of further guidance, term
definitions are included to better appreciate the teaching of the
present invention.
[0011] As used herein, the following terms have the following
meanings:
[0012] "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.
[0013] "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.
[0014] "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.
[0015] The recitation of numerical ranges by endpoints includes all
numbers and fractions subsumed within that range, as well as the
recited endpoints.
[0016] The term "container" refers to a receptacle or holder for
e.g. food and liquids for consumption but the invention is equally
applicable to containers holding any type of product, where a
widened (seam) portion at or near the top is followed by an
inferiorly positioned portion with a lower radius, defining one or
more recessed sections and/or ledges. Such containers can be cans,
glass jars, bottles, steel (or other metals) tins. 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 with a
constant radius, and an inferior portion with a constant radius
that is lower than that of the seam portion. In general, this seam
portion is at the top, and can be an actual seam of the rolling of
a can, 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 container for storing
products such as food and/or beverages (or liquids in general).
[0017] The term "seam portion" refers to a radially protruding
section of the container with a larger radius than the section
thereunder. As mentioned, in general this will be present at the
upper end of the container (for instance a double seam created by
the canning process), providing a practical pick-up section of the
container for the invention, since gravity will ensure that the
containers do not move upwards, while the carrier ensures downward
retention.
[0018] The "portion directly inferior along the first direction to
the seam portion" or "portion directly inferior to the seam
portion" refers to a (the first) local minimum in radius of the
container below the seam portion. As mentioned above, the seam
portion is generally at the upper end of the container (where a
container is opened), and so is the portion directly inferior to
the seam portion. In most circumstances, both portions will be in a
region at most 1 to 4 cm beneath the top of the container, and
often even at most 0.5 cm from the top of the container, with the
seam portion being (part of) the very top.
[0019] "Retention tab" as used herein refers to any holding device
known in the art, adapted to receive and retain a container.
Preferably, said retention tab is a substantially planar
protrusion, protruding at least partially inwardly from the
perimeter of the aperture at a first angle with respect to the
lower surface of said secondary packaging. The substantially planar
retention tab comprising an intersecting end located proximal to
the upper surface of the secondary packaging, an upper end located
distal to the upper surface of the secondary packaging, a mid-end
located between said intersecting end and said upper end and
equally spaced from said intersecting end and said upper end, and a
tangent trough the mid end to the upper end of said retention
tab.
[0020] 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.
[0021] In a first aspect, the invention pertains to a packaging for
holding a plurality of objects, preferably containers, wherein the
packaging substantially comprises, and preferably consists of,
metal. The packaging is substantially planar and comprises a plate,
said plate being provided with a plurality of apertures for holding
the objects, said apertures extending through the plate, preferably
said apertures being provided in a grid formation comprising a
longitudinal (X) direction and a transverse (Y) direction, more
preferably whereby said apertures are equally spaced apart in both
the longitudinal (X) and the transverse (Y) direction. Each of the
apertures comprises a perimeter and one or more, preferably at
least three, resilient retention tabs are provided on said
perimeter, extending from said perimeter at least partially
inwardly. The above packaging ensure structural strength thereof,
while limiting the material thickness as much as possible.
[0022] In a preferred embodiment, the retention tabs of an empty
aperture protrude at least partially inwardly from the perimeter of
each aperture at a first angle with respect to the plate of the
packaging. Said retention tabs are adapted to undergo an at least
partially elastic deformation upon insertion of the objects, and
whereby the retention tabs of an aperture occupied by an object,
protrude at least partially inwardly from said perimeter at a
second angle with respect to the plate of said packaging,
preferably whereby said first and second angle are substantially
different. It should be understood that the aperture and retention
tabs at hand are dimensioned to allow for passage of the object to
be retained through the aperture when disregarding the retention
tabs, but not allowing direct passage of said object in the
presence of the retention tabs. Of course, the retention tabs are
adapted to allow some (at least partially elastic) deformation to
ensure that the object can be introduced.
[0023] In a more preferred embodiment, the first angle ranges
between 10.degree. and 60.degree. with respect to the plate,
preferably between 20.degree. and 55.degree., more preferably
between 40.degree. and 50.degree.. The second angle ranges between
20.degree. and 70.degree. with respect to the plate, preferably
between 30.degree. and 65.degree., more preferably between
40.degree. and 60.degree.. It is noted that the elastic limit of
the retention tabs is likely not negatively affected upon
receiving, retaining and releasing a container, thus, allowing for
an intensive use of the packaging. "Elastic limit" as used herein
refers to the maximum stress or force per unit area within a solid
material that can arise before the onset of permanent deformation,
preferably before the onset of about 0.1% permanent deformation
[0024] In a preferred embodiment, a ratio of said first angle to
said second angle of a retention tab ranges from 9:1 to 1:9, more
preferably said ratio ranges from 8:1 to 1:8, more preferably said
ratio ranges from 7:1 to 1:7, more preferably said ratio ranges
from 6:1 to 1:6, more preferably said ratio ranges from 5:1 to 1:5,
more preferably said ratio ranges from 4:1 to 1:4, more preferably
said ratio ranges from 3:1 to 1:3, more preferably said ratio
ranges from 2:1 to 1:2, most preferably said ratio is about 1:1. A
ratio of said first angle to said second angle ranging from 9:1 to
1:9 is beneficial for receiving and subsequently retaining a
container. A ratio of said first angle to said second angle ranging
from 3:1 to 1:3 is more beneficial for receiving and subsequently
retaining a container. A ratio of said first angle to said second
angle of about 1:1 is even more beneficial for receiving and
subsequently retaining a container.
[0025] In a preferred embodiment, the retention tabs extend from
the perimeter of the aperture over a minimal distance of 0.50 mm,
preferably 1.0 mm, more preferably at least 1.25 mm.
[0026] In a preferred embodiment, the perimeter of the apertures is
polygonal, preferably regularly polygonal, whereby the retention
tabs are provided on the edges of said substantially polygonal
perimeter.
[0027] With reference to FIG. 7 and in a preferred embodiment, each
retention tab is provided with one or more indented recess sections
(26) provided at the non-attached side of each retention tab, said
indented recess section being indented towards the perimeter of the
aperture, thereby forming a humped structure in the retention tab.
It is noted that by providing one or more indented recess sections,
as configured above, the objects are more easily received, retained
and released from an aperture. This improved functionality is in
part caused by a larger contact surface between each object and the
retention tab. A larger contact surface between the object and the
packaging, allows for a more delicate force distribution across the
apertures. Thus, by providing one or more indented recess sections
at the non-attached side of a retention tab, the receiving and
releasing threshold value may be lowered without affecting the
retention capacity of the apertures. Moreover, it is noted that
objects are less likely damaged upon insertion or release from a
packaging configured with indented recess sections as described
above. Even furthermore, the deformation of the retention tabs for
passing the wider part of the object is reduced, without however
reducing (in fact even reinforcing) the strength with which the
objects are held in the packaging.
[0028] In a preferred embodiment, the retention tabs are positioned
over regular intervals on the perimeter of the apertures, wherein
said apertures being provided in a grid formation comprising a
longitudinal (X) direction and a transverse (Y) direction, more
preferably whereby said apertures are equally spaced apart in both
the longitudinal (X) and the transverse (Y) direction, and wherein
each aperture is rotated with respect to each adjacent aperture
positioned in both said longitudinal direction (X) and transverse
direction (Y), preferably whereby each aperture is rotated over
180.degree. divided by the number of retention tabs with respect to
each adjacent aperture. Such configuration has the advantage that
the distance between each adjacent aperture is maximized without
substantially increasing the size of the secondary packaging. Such
methodology furthermore prevents wear or breakage and increases the
life-span of the secondary packaging.
[0029] In a preferred embodiment, around at least one, preferably
all, of the apertures, the plate is provided with one or more
weakened line sections or notches at zones adjoining to the
perimeter of said aperture wherefrom the retention tabs extend,
preferably whereby said weakened line sections or notches define a
generally U or V shaped form, and whereby the opening of said U or
V shaped form is directed towards the perimeter of aperture.
[0030] In a preferred embodiment, around at least one, preferably
all, of the apertures (2), the plate is provided with one or more
weakened line sections at zones adjoining to the perimeter of said
aperture (2) wherefrom the retention tabs extend, whereby the one
or more weakened line sections extend over at least part of said
perimeter wherefrom the retention tabs extend.
[0031] In a further preferred embodiment, said weakened line
sections are defined by a reduced thickness of the plate by at
least 25%, preferably at least 50%, more preferably at least 75%,
most preferably by 100% with respect to the rest of the plate.
[0032] In a preferred embodiment, the plate consists of metal,
preferably aluminum and/or an aluminum alloy.
[0033] In a preferred embodiment, 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.
[0034] In a preferred embodiment, 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.
[0035] In a preferred embodiment, the retention tabs of an
unoccupied aperture define an inscribed loop which is smaller than
the maximal cross-section of the to be retained object that is to
be introduced in the aperture, while the aperture without the
retention tabs defines an inscribed loop that is larger than said
maximal cross-section. In order for the receiving apertures to
receive an object, a user has to exert a force to the object, or on
the packaging, exceeding a receiving threshold value. "Receiving
threshold value" as used herein refers to the force needed to
deform the retention tabs substantially perpendicular to the plate.
By deforming the retention tabs substantially perpendicularly,
passage of the object is allowed. In order for the apertures to
release an object, a user has to exert a force exceeding a
releasing threshold value. "Releasing threshold value" as used
herein refers to the force needed to deform the retention tabs
substantially perpendicularly to the plate. By deforming the
retention tabs in said direction, the object is released.
Preferably, the releasing threshold value is greater than the
gravitational force exerted on an object upon lifting the
packaging. For example, in the event that a container would weigh
about 400 g it would exert force of about 4 N to the package. As a
consequence, in order for the apertures to release said container,
a user has to exert a force to the container substantially larger
than 4 N. Preferably, said releasing threshold value falls within a
range of about 4 to 23 N, preferably within a range of about 5 to
22 N, preferably within a range of about 6 to 21 N, preferably
within a range of about 7 to 20 N, preferably within a range of
about 8 to 19 N, preferably within a range of about 9 to 18 N,
preferably within a range of about 10 to 17 N, preferably within a
range of about 11 to 16 N, most preferably within a range of about
12 to 15 N. It is noted that releasing threshold values within a
range of about 4 to 23 N allow for an easy detachment of the
container.
[0036] In a possible embodiment, the tabs are provided
non-symmetrically over the perimeter of the aperture. Such a
formation can allow for certain directions to allow an easier
release of the held object when applying force in a certain
direction. For instance, more and/or longer and/or wider tabs can
be provided over certain regions (preferably in such a case on both
opposite sides of the perimeter) to create a stronger retention,
while less and/or shorter tabs at other regions to provide a
`favored` release direction. In a particular embodiment, more
and/or longer tabs are provided in regions that are positioned
around the intersection of a line connecting the center of the
aperture with the center of the packaging (or the closest finger
loop or other gripping means) with the perimeter. 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 come
loose. Inversely, by applying force perpendicular to the above
line, an easy release is possible.
[0037] Moreover, one can provide more and/or longer and/or wider
tabs at the far side of the aperture (with respect to the center of
the packaging) than at the close side of the aperture. This way,
when carrying the packaging, the objects will mainly rest on the
stronger far-side tabs. 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 tabs and allowing easy decoupling.
[0038] The packaging is substantially planar and has a maximal
thickness of 5.0 mm, preferably 2.5 mm. A packaging with a maximal
thickness of about 5.0 mm is light and thus easy to use.
Preferably, the packaging has a thickness in the range of about 0.1
mm to 2.5 mm, more preferably a thickness in the range of about 0.2
mm to 2.4 mm, more preferably a thickness in the range of about 0.3
mm to 2.3 mm, more preferably a thickness in the range of about 0.4
mm to 2.2 mm, more preferably a thickness in the range of about 0.5
mm to 2.1 mm, more preferably a thickness in the range of about 0.6
mm to 2.0 mm, more preferably a thickness in the range of about 0.7
mm to 1.9 mm, more preferably a thickness in the range of about 0.8
mm to 1.8 mm, more preferably a thickness in the range of about 0.9
mm to 1.7 mm, more preferably a thickness in the range of about 1.0
mm to 1.6 mm, more preferably a thickness in the range of about 1.1
mm to 1.5 mm to most preferably a thickness in the range of about
1.2 mm to 1.4 mm.
[0039] In a preferred embodiment, the plate of the packaging has a
thickness comprised between 0.05 mm and 2.50 mm. Preferably, the
thickness is comprised between 0.075 mm and 2.25 mm, more
preferably between 0.10 mm and 2.00 mm, even more preferably
between 0.15 mm and 1.50 mm; between 0.20 mm and 1.25 mm; between
0.25 mm and 1.00 mm; between 0.275 mm and 0.75 mm; between 0.30 mm
and 0.50 mm; between 0.325 mm and 0.40 mm.
[0040] Preferably, retention tabs have substantially the same
thickness as the plate of the packaging. A maximal thickness of
2.50 mm, preferably maximally 1.0 mm, is beneficial for receiving
and retaining a container. A thickness in the range of about 0.1 mm
to 2.5 mm is beneficial as the packaging won't bend upon holding a
plurality of containers. Retention tabs having a maximal thickness
of 5.0 mm, preferably 2.5 mm, provide a receiving threshold value
that is easily bridged by a user, while still providing a
sufficient releasing threshold value to retain the containers upon
lifting the packaging. Moreover, the applicant noted that retention
tabs having a maximal thickness of 5.0 mm have a sufficiently high
elastic limit to allow intensive use of the retention tabs. The
applicant also noted that that retention tabs having a maximal
thickness of 2.5 mm, allow for an even higher elastic limit,
thereby allowing for an even more intensive use of the retention
tabs. Moreover, the applicant also noted that materials with a
thickness of less than 0.05 mm are too brittle to be used as a
packaging or as a retention tab.
[0041] Preferably, the aperture is polygonal, and the substantially
polygonal perimeter comprises 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,
14, 15, 16, 17, 18, 19 or 20 vertices. Preferably, the
substantially polygonal perimeter comprises 4, 6 or 8 vertices.
Preferably, the substantially polygonal perimeter comprises 6
vertices. Preferably said substantially polygonal perimeter is
regular.
[0042] Preferably, the vertices and/or the retention tabs of said
substantially polygonal perimeters are blunt. Preferably said
vertices and/or side edges being rolled edges. Blunt vertices
and/or edges have the advantage that a user is not able to cut
him/herself when inserting and/or releasing the containers.
Moreover, blunt vertices have the advantage that containers are not
damaged when inserted and/or released. Rolled edges are easily
produced.
[0043] Preferably, the retention tabs extend over a length of about
5 to 95% of the length of the edges of the substantially polygonal
perimeter of an aperture, preferably the retention tabs extend over
a length of about 10 to 90%, preferably the retention tabs extend
over a length of about 15 to 85%, preferably the retention tabs
extend over a length of about 20 to 80%, preferably the retention
tabs extend over a length of about 25 to 75%, preferably the
retention tabs extend over a length of about 30 to 70%, preferably
the retention tabs extend over a length of about 35 to 65%,
preferably the retention tabs extend over a length of about 30 to
60%. Retention tabs extending over a length of about 5 to 95% of
the length of the edges of the substantially polygonal perimeter of
an aperture facilitate the receiving and releasing of objects.
Thus, the receiving and releasing threshold value may be lowered
without affecting the retention capacity of the apertures.
[0044] According to a specific embodiment, at least one or two,
preferably all, of the retention tabs are coiled. Said retention
tabs are preferably coiled in at least 2 revolutions. More
preferably, in at least three revolutions. The coiled retention
tabs are substantially bendable relative to the perimeter of the
aperture and are adapted to receive and retain an object at its
recesses, under a laterally projecting or protruding part of the
object. The retention tabs protrude at least partially inwardly
from said perimeter at a coiled angle with respect to the upper
surface of said packaging. A user would just need to click the
object in the aperture. To remove the objects from the packaging,
the user would simply need to pull the objects out of the
apertures. Coiled retention tabs are easy to produce, with coiled
retention tabs made out of metal being especially advantageous.
Because of the properties of metals and the coiled structure of the
retention tabs, the tabs can undergo an elastic deformation,
allowing these to at least partially return to their original shape
once the object is removed from the aperture. The previous is
advantageous, as it results in a high durability of the packaging,
whereby the packaging can be reused multiple times, thereby
reducing the environmental impact of the packaging.
[0045] With reference to FIG. 4 and according to a further specific
embodiment, each coiled retention tab comprises an outer edge
perimeter (23) and an inner edge perimeter (24). Preferably, the
ratio of said inner diameter to said outer diameter is at most 0.9,
preferably at most 0.8, more at most 0.7, even more preferably at
most 0.6. Preferably, the ratio of said inner diameter to said
outer diameter is at least 0.1, preferably at least 0.2, more
preferably at least 0.3, even more preferably at least 0.4. It is
noted that the above-mentioned ratio of at most 0.9 and at least
0.1, allows for the container to be retained by the coiled
retention tabs, while the coiled retention tabs retained their
elastic deformation functionality.
[0046] According to a further specific embodiment, a deformation
from an unoccupied position of the retention tabs to a position of
the retention tabs allowing passage of the object to be retained,
whereby the retention tabs are substantially equally deformed, is
for at least 10% preferably 20%, more preferably 30%, even more
preferably 40%, even more preferably 50%, even more preferably 60%,
even more preferably 70%, even more preferably 80%, even more
preferably 90%, even more preferably 100%, an elastic deformation.
The applicant remarks that an elastic deformation of at least 10%
results in that the coiled retention tabs of the aperture can be
reused, without the need for the user to manually return the
original shape of the coiled retention tabs in order to retain
their functionality. It is further noted that an elastic
deformation of at least 40% further significantly increases the
durability of the packaging.
[0047] According to a further specific embodiment disclosed in FIG.
4, the aperture (2) comprises a centre and said coiled retention
tabs (3) comprise an aperture end (21) located radially proximal to
the centre of the aperture in the plate, and a distal end (19)
located radially distal to the centre of the aperture. Preferably,
the perpendicular distance between the aperture end and the distal
end of the coiled retention tab is at least 0.1 mm, preferably 0.2
mm, more preferably 0.3 mm, even more preferably 0.4 mm, even more
preferably 0.5 mm, even more preferably 0.6 mm, even more
preferably 0.7 mm, even more preferably 0.8 mm, even more
preferably 0.9 mm, even more preferably 1 mm, in an unoccupied
aperture. Preferably, the perpendicular distance between the
aperture and distal end is at most 20 mm, preferably 18 mm, more
preferably 16 mm, even more preferably 14 mm, even more preferably
12 mm, even more preferably 10 mm, even more preferably 8 mm, even
more preferably 6 mm, in an unoccupied aperture. The perpendicular
distance between the aperture and distal end of at least 0.5 mm and
at most 8 mm of the coiled retention tabs is especially
advantageous for retaining one or more containers in the secondary
packaging.
[0048] In a preferred embodiment, the coiled retention tabs have a
varying thickness over the width of the tab, preferably wherein the
coiled retention tabs have a thickness profile which is highest
centrally and diminishes towards the periphery of each tab. By
varying the thickness of the coiled retention tabs, the retention
strength and flexibility can be varied and chosen carefully over
the width of the tabs. By increasing the thickness at the center,
more retention can be created there, where it is most necessary.
The fringes can then have a declining thickness, and a declining
retention strength to allow release once the center is
`breached`.
[0049] According to a further specific embodiment, the coiled
retention tabs are spirally coiled around an axis. Preferably, said
axis is substantially perpendicular to the radial direction
originating from said retention edge section and substantially
parallel to the plane of the packaging. It is noted that by
spirally coiling the retention tabs, the elasticity of the
deformation of the sections is improved.
[0050] Preferably, the coiled retention tabs comprise a bend line.
Preferably, said bend line is substantially perpendicular to the
radial direction originating from said retention tabs and
substantially parallel to the plane of the packaging.
[0051] According to a specific embodiment of the invention, the
secondary packaging may comprise a material other than metal, e.g.
cardboard. According to another specific embodiment of the
invention, the secondary packaging may comprise plastic.
[0052] Preferably, the coiled retention tabs in a number of
revolutions or layers, wherein each layer is distanced from its
neighboring layers of a certain distance, allowing the coiled tab
to flex. When pressured, the distance between the layers can
change, thereby dividing the pressure and strain over multiple
zones and sections to avoid plastic deformation.
[0053] According to a specific embodiment the outer surfaces of the
secondary packaging may be treated using any metal surface treating
agent known in the art. Preferably, said outer surfaces are treated
using a coating. Preferably, said coating is an anti-oxidizing
coating. According to a specific embodiment, said coating may
comprise a pigment. According to a further specific embodiment, the
outer surface of the secondary packaging may comprise a functional
enhancement indicator. "Functional enhancement indicator" as used
herein refers to any indication or signal perceptible to the user
that draws the user's attention to a functionally-distinguishable
portion of the secondary packaging. For example, such functional
enhancement indicator may indicate the retention tabs or a
reinforced portion, preferably consisting of metal, anywhere on the
secondary packaging. Secondary packaging materials substantially
comprising metal can easily be re-used. Packaging materials
substantially comprising metal are less prone to wear, cracking or
breakage, compared to for example cardboard or plastic packaging
materials. Moreover, in case the containers would be e.g. metal
cans, its production and the production of the secondary package
according to the present invention could be coordinated with each
other, taking advantage of any material stocks used already for
producing the containers themselves, which usually comprise, if not
consist of, metal, and specifically aluminum alloys. 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 secondary
packaging.
[0054] In a preferred embodiment, the packaging itself is
essentially planar, with a limited thickness. Most preferably, the
packaging is rectangularly-shaped, preferably with rounded
corners.
[0055] In a particularly preferred embodiment, an example of which
is shown in FIGS. 10 and 11, in combination with FIG. 5, the
packaging is provided with one or more notches (27) around at least
one aperture, preferably around all apertures. The notches (27) are
provided at one or more of the retention tabs at said at least one
aperture (2), preferably at all of the retention tabs. The notches
are weakened sections of the packaging, and can be pressed, cut,
perforated or provided via other means, and preferably extend in
one direction, with a limited width (most preferably linear or
slightly curved). The notches can be provided in the form of a
reduced thickness of the packaging material, with a minimal
reduction of 25%, preferably minimally 50% or even 75%, but can
also be full through-opening (`full cut`). The goal of these
notches is to provide sections where the packaging can flex, in
order to divide the deformation when a container is introduced past
the retention tabs. Without the notches, the retention tabs will
generally undergo the greatest part of the deformation. By however
providing the notches, the part of the packaging around the
aperture (and more exactly, the part between the notches and the
retention tab), will subsume part of the deformation originally
only carried by the retention tabs, thereby lessening the
deformation thereof, and further ensuring elastic deformation. It
is noted that further reduction of thickness may improve the
redistribution of forces and deformation; with the best results
found at a full cut notch.
[0056] In a most preferred embodiment, the notch(es) form a cupped
section between the notches and the retention tab. This can be
provided by the notch(es) forming a `V` or `U` shape, with the
opening of the `V` or `U` facing the retention tab, and whereby the
`V` or `U` can be defined by separate notches (for instance, each
leg of the V being a separate notch, which are spatially
distanced). It is noted that a linear notch tangential to the
aperture, where the retention tab is present but spatially
distanced therefrom, may also be advantageous, though to a lesser
extent than the previous embodiments.
[0057] Furthermore, It is noted that two or more sets of V, U
and/or linear notches can be provided radially subsequent to each
other, to even further divide force and deformation. An embodiment
with two notches forming a V-shaped weakened section for a
retention tab can be seen in FIGS. 10 and 11.
[0058] Furthermore, it is noted that the notches can also be
applied to the coiled retention tabs.
[0059] Preferably, in case of multiple notches per retention tab
(see FIG. 10), these are provided symmetrically with respect to
each other, and do not extend further than 2.0 cm from the most
extended part of the retention tab, preferably not further than 1.0
cm and most preferably at most 0.75 cm.
[0060] The notches have a minimal width (in the plane of the
packaging plate) of 0.10 mm, preferably at least 0.20 or 0.25 mm.
Preferably, the notches have a maximal width of 0.50 mm, more
preferably at most 0.35 mm.
[0061] In a second aspect, the invention pertains to an assembly
comprising a secondary packaging according to the present invention
holding a plurality of objects. Each of the objects comprises a
ledge and/or 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.
The aperture provided in the plate of the secondary package
according to the present invention, without considering the
retention tabs, is adapted to allow passage of the objects at said
first end at least up to the recessed outer section. The retention
tabs, positioned on the perimeter of the apertures, extend inwardly
over a distance so as to all extend into the recessed outer section
when the object is inserted into the aperture with the first end of
the object. This allows an easy pick-up and retention afterwards,
of the objects.
[0062] The recessed portion may be the result of the object being
provided with a ledge portion, similar to the seam of a can.
[0063] 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 first aspect of the invention. 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. The aperture of the first
secondary packaging without considering the retention tabs thereof
is adapted to allow passage of the objects at said first end at
least up to the first recessed outer section, and wherein the
retention tabs extend inwardly over a distance so as to all extend
into the first recessed outer section when the object is inserted
into the aperture with the first end of the object. The aperture of
the second secondary packaging without considering the retention
tabs thereof is adapted to allow passage of the objects at said
second end at least up to the second recessed outer section, and
wherein the retention tabs extend inwardly over a distance so as to
all extend into the second recessed outer section when the object
is inserted into the aperture with the second end of the
object.
[0064] In a particular embodiment of both aspects, the objects are
containers, such as cans or bottles. In a most 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.
Preferably, said containers are beverage cans. Preferably, said
containers are soda cans or beer cans. Preferably, said containers
are beer cans.
[0065] Preferably, the difference between the radius of the
adjoining outer section and the radius of the recessed outer
section of the containers is at least 0.05 mm, preferably the
difference between said radii is at least 0.10 mm, preferably the
difference between said radii is at least 0.15 mm, preferably the
difference between said radii is at least 0.20 mm, preferably the
difference between said radii is at least 0.25 mm, preferably the
difference between said radii is at least 0.30 mm, preferably the
difference between said radii is at least 0.35 mm, preferably the
difference between said radii is at least about 0.40 mm, preferably
the difference between said radii is at least about 0.45 mm,
preferably the difference between said radii is at least about 0.50
mm. Preferably, the difference between the radius of the adjoining
outer section and the radius of the recessed outer section falls
within a range of about 0.05 to 1.0 mm, preferably within a range
of about 0.10 to 0.95 mm, preferably within a range of about 0.15
to 0.90 mm, preferably within a range of about 0.20 to 0.85 mm,
preferably within a range of about 0.30 to 0.80 mm, preferably
within a range of about 0.25 to 0.80 mm, preferably within a range
of about 0.30 to 0.75 mm, preferably within a range of about 0.35
to 0.70 mm, preferably within a range of about 0.40 to 0.65 mm,
preferably within a range of about 0.45 to 0.60 mm, preferably
within a range of about 0.45 to 0.55 mm, most preferably the
difference between said radii is about 0.5 mm. Containers whereby
the difference between said radii is at least 0.05 mm are widely
commercially available.
[0066] The present invention is not restricted to any form of
realization described previously and modifications can be added
without reappraisal of the appended claims. For example, the
present invention has been described referring to containers, e.g.
beverage containers, but it is clear that the invention can be
applied to any container or recipient which is provided with a
ledge or protruding seam at or near the top under which a recess is
thus present (not necessarily in a receded position relative to
inferior sections of the container), which can be used for
retention purposes. Furthermore, the protruding seam is not
necessary present over the entire circumference of the container
but can be provided as separate protrusions under which a recess is
thus present.
DETAILED DESCRIPTION OF FIGURES
[0067] FIG. 1 shows a perspective view of a container 12 comprising
a recessed cross-section outer section 16, and an overlying
adjoining outer section 13 with a larger radius. Said adjoining
outer section 13 describes a circumscribed circle with a radius
larger than the radius of the circumscribed circle of the recessed
outer section 16 positioned directly beneath said adjoining outer
section 13. The container 12 further comprises a distal end 15 and
a proximal end 14.
[0068] FIG. 2 shows a perspective view of an embodiment of the
packaging 1 according to the present invention for holding a
plurality of objects, or in particular containers 12. The secondary
packaging 1 comprises a plurality of apertures 2 extending
separately through the plane of the packaging 1. According to the
current embodiment, the apertures 2 are provided in a grid
formation comprising a longitudinal direction (X) 5 and a
transverse direction (Y) 6. According to the current embodiment,
the apertures 2 are equally spaced apart in both said longitudinal
direction (X) 5 and transverse direction (Y) 6. Each aperture 2 is
rotated with respect to each adjacent aperture 2 positioned in both
said longitudinal direction (X) 5 and transverse direction (Y) 6.
The apertures 2 of the current embodiment comprise six vertices 9.
Said apertures 2 are rotated about 30.degree. with respect to each
adjacent aperture 2. The apertures 2 are provided with retention
tabs 3 (not shown). The secondary packaging is further provided
with finger loops 4. Said finger loops 4 extend through the plane
of the secondary packaging 1 having a perimeter that can take
various forms including circular, angular, or a combination
thereof.
[0069] FIG. 3 shows an embodiment of an assembly according to the
present invention.
[0070] FIG. 4 shows a perspective view of a cross section of an
aperture 2 of a secondary packaging comprising one or more coiled
retention tabs and a container 12, positioned underneath the
aperture, comprising a wider section 13 (ledge) and a recessed
section 16 directly inferior to the wider portion 13, underneath
the aperture. The coiled retention tab 3 comprising a distal end
19, an upper end 20, an aperture end 21, a lower end 22, an outer
edge perimeter 23, an inner edge perimeter 24.
[0071] FIGS. 5 and 6 show a top view of an embodiment of the
secondary packaging 1 according to the present invention.
Preferably, the secondary packaging 1 comprises six apertures 2.
Preferably, the apertures 2 are positioned in a 2.times.3 grid.
Preferably, each aperture 2 comprises four coiled retention tabs 3.
Preferably, each coiled retention tab 3 comprises a distal end 19
and an aperture end 21. Preferably, said coiled retention tabs 3,
of an unoccupied aperture 2, define an inscribed circle or loop 7.
Preferably, the secondary packaging comprises two finger loops
4.
[0072] FIG. 7 shows a detailed top view of an embodiment of the
secondary packaging 1 according to the present invention. Said
embodiment is also shown in FIG. 6. Each retention tab as shown in
FIGS. 6 and 7 is provided with one indented recess section 26,
which has a lower minimal distance to the perimeter of the aperture
than the directly surrounding sections 25. Such recess sections 26
are provided at the non-attached side of each retention tab. Such
retention tabs are "camel hump-shaped", the two humps 25 adjacent
to the recess section 26, and provide a larger contact surface
between each container and each container receiving aperture. The
two `humped` sections 25 along with the recess section 26 provide
for a retention tab in this embodiment. Note that the recess
section 26 and humped sections 25 are exaggerated in order to
clearly show said features.
[0073] FIGS. 8 and 9 show a detailed cross-section view of an
embodiment of the secondary packaging. Said embodiment is for
example also shown in FIG. 5. The right end of the cross-section
views show a rolled edge 9 provided at a retention tab. The
retention tabs 3 of an unoccupied aperture 2 protrude at least
partially inwardly from said perimeter of each aperture 2 at a
first angle with respect to the lower surface of said secondary
packaging 1. Said first angle is illustrated in FIG. 8. The
retention tabs 3 form gripping jaws upon receiving and retaining
said container 12, whereby said gripping jaws protrude at least
partially inwardly from said perimeter at a second angle with
respect to the lower surface of said secondary packaging 1. Said
second angle is illustrated in FIG. 9. The left end of the
cross-section view shows a rolled edge 9 provided at a side edge of
an essentially rectangular secondary packaging. Such packaging is
for example shown in figure and 5.
[0074] FIG. 10 shows a detailed top view of an embodiment of the
invention where notches 27 are provided in a V-shape in the
packaging 1 at a retention tab 3.
[0075] FIG. 11 shows a general top view of an embodiment of the
secondary packaging according to the invention, where V-shaped
notches 27 are provided at the retention tabs 3 of one of the
apertures 2.
[0076] It is assumed that the present invention is not restricted
to the embodiments described above and that some modifications of,
or changes to the examples described can be added without
reassessment of the attached claims.
* * * * *