[0001] The invention relates to a packing unit comprising:
a plurality of cartons of a rectangular block shape arranged in parallel rows, which
rows lie against one another, first and last end cartons of the rows together forming
a first and a last end face, respectively;
a wrapper around the rows of cartons, which wrapper is folded about folding lines
which extend parallel to the rows of cartons, thus forming a base surface, mutually
opposed side surfaces, and a top opposite the base surface, the base surface being
a surface in one part connected to the side surfaces on either side,
which wrapper keeps the cartons enclosed in the rows,
edge strips having a width are present, which strips are integral with the wrapper
and extend along the base surface, the side surfaces, and the top of the wrapper and
are connected thereto, which strips lie against the first and the last end face, and
which strips are fastened to one another, whereby the wrapper holds on to each and
every carton lying in the first or the last end face, as applicable.
[0002] Such a packing unit is known from US-A-3,833,116.
[0003] In the known packing unit, for example, four rows of cartons are placed on a plateau
having raised rims, while a second plateau filled with cartons may be present on top
of the former. The wrapper surrounds the package at four sides, one of these being
the base of the first plateau. The wrapper surrounds the package with clamping fit.
It is prevented thereby that a plateau can slide from the closed wrapper.
[0004] The known packing unit has the advantage that, owing to the wrapper, it requires
comparatively little packaging material compared with an outer carton, while nevertheless
the cartons are securely fixed in the packing unit. The known packing unit has the
disadvantage that it cannot be readily opened. Another disadvantage of the known packing
unit is that it cannot form a plateau which can be displayed on a stand with the associated
cartons without further measures.
[0005] Although the known packing unit compared with conventional packing units saves much
packaging material, it nevertheless still uses comparatively much packaging material,
and comparatively much material is left over after unpacking.
[0006] US-A-5,555,979 discloses a packing unit having cartons placed on a plateau having
raised rims. A wrapper surrounds with clamping fit the package at four sides, one
of these being the base of the plateau.
[0007] It is an object of the invention to provide a packing unit of the kind described
in the opening paragraph which leads to a yet further saving in packaging material.
[0008] According to the invention, this object is achieved in that the base surface has
perforation lines which lie at a distance from one another, extend alongside the folding
lines, and have extensions into the relevant edge strips. In particular, the perforation
lines lie at a distance to the accompanying folding lines which corresponds to the
width w of the edge strips of the side surfaces. Alternatively the top has at least
a perforation line at a distance w from the adjacent folding line, if applicable.
If one or several parts of the top already has/have a dimension w, such perforation
lines are not possible or indeed necessary in these locations in the top.
[0009] The packing unit has the advantage that it may be readily opened, and that the side
walls with the edge strips thereof will each form a plateau which can be displayed
on a stand with the associated cartons without further measures. The packing unit
has the further advantage that only a portion of the base surface and possibly a portion
of the top with the attached portions of the relevant edge strips are left as waste
material after opening, which material can be readily flattened for waste disposal.
The packing unit according to the invention further has the advantage that no plateau
is required because the function of the plateau for retaining the cartons has been
integrated into the wrapper. This not only realizes a saving in packaging material,
but also simplifies the logistics.
[0010] Since the edge strips can be comparatively narrow in general, for example have the
same width as the raised rims of the known plateaus, for example a few cm, for example
2 to 4 cm, the advantage is retained in the packing unit that no printed message on
the wrapper for identifying the contents of the packing unit is necessary, because
the unit is substantially open at the end faces and displays the packed cartons.
[0011] The other advantage of the edge strips being integral with the wrapper, hence that
it is of little importance for the retention of the cartons whether or to what extent
the wrapper is clamped with force around the rows of cartons, is retained.
[0012] The packing unit furthermore has the advantage that it has excellent stacking properties
with several of its faces being capable of serving as plane support surfaces.
[0013] The edge strips fastened to one another, those against the first and those against
the last end face, in addition render it unnecessary to close the wrapper itself,
for example by fastening of the top to a side surface, in locations where the latter
come together when the wrapper is formed from its blank.
[0014] In a favorable embodiment of the packing unit, the top is divided into a first and
a second part, each part being connected to a respective side surface along a folding
line. The seam between the parts may lie, for example, centrally in the top, in the
center between the side surfaces. The parts of the top may abut against one another
on the seam. In general, the packing unit having such a seam has a rigidity such that
the seam hardly opens any further during normal manipulation of the packing unit.
If a row of cartons is present at the area of the seam, which cartons each extend
to below the first and the second part of the top, the packing unit is in addition
comparatively rigid against torsion, i.e. the first and the second part of the top
can hardly be shifted alongside one another on the seam.
[0015] In this embodiment, too, the top, when placed vertically with a side surface serving
as the bottom surface, is perfectly capable of absorbing forces exerted by a second
unit placed on the former packing unit. If so desired, mutually engaging teeth may
be present at the first and at the second part of the top, for example, projecting
into the interior of the wrapper. Such teeth are capable of preventing shifting of
the parts along one another on the seam, thus increasing the torsional stiffness of
the packing unit.
[0016] In a special embodiment, the top is divided into a first and a second part which
are each connected to a respective side surface, and the first part has a dimension
which corresponds to the width w of the edge strips of the side surfaces. In a favorable
modification, the second part has a tag which projects into the wrapper. This tag
is capable of preventing the second part from sliding over the first part under pressure.
The tag thus ensures that the first and second parts abut against one another. In
a further modification, the second part has tongues at its edge strips which project
to below the edge strips of the relevant side surface. The tongues give the packing
unit an increased torsional stiffness. Adhesive means on the tag and the tongues are
usually not necessary.
[0017] In a further embodiment, too, the top surface is divided, but the first and the second
part thereof lie at a distance from one another, more in particular they each have
a dimension corresponding to the width of the edge strips of the side surfaces. This
embodiment renders it possible to leave a major portion of the top surface of the
package of cartons uncovered, which offers a further saving in packaging material.
[0018] The rows of cartons may be present in one layer or in several layers arranged parallel
to the base surface. The layers may comprise two or more rows. However, the fact that
the wrapper retains each canon lying in an end face by means of the edge strips implies
that the layers can only have more than two rows if there are no more than two layers.
If a third layer were present, not all cartons in the central layer would be retained
by the edge strips. Cartons could then have been removed from the unopened package
without this being necessarily visible from the outside of the packing unit. Similarly,
there can only be more than two layers in the packing unit if there are no more than
two rows in each layer for the same reason.
[0019] There may also be many layers with a maximum of two rows per layer or two layers
with several rows per layer in a packing unit having a two-pan top in which the parts
of the top lie at a distance from one another, as long as each canon lying in an end
face is retained by an edge strip.
[0020] It is attractive, however, if there are layers of only two rows each in the unit.
This unit has the advantage that after the removal of the material from between the
perforation lines two plateaus with cartons are obtained which occupy a stable position.
The cartons are all held together then by the plateaus thus obtained.
[0021] The number of canons in a row and the number of rows and layers in a packing unit
are determined in dependence on the volume and mass of a carton and also on the nature
of the goods packed, whereby indeed the conditions for presenting the cartons are
determined. Said factors also determine the quality of the material used for the wrapper.
It is simple, however, for those skilled in the art of packaging to choose suitable
parameters in any given case.
[0022] The packing unit according to the invention is highly suitable for use in the packaging
of one or two electric lamps, for example incandescent lamps, per canon. Lamps generally
have a very small mass compared with their volume. Their volume is nevertheless comparatively
small, so that a comparatively large number of lamps, for example 40, may be packed
in the same number or half the number of cartons in a convenient manner in one packing
unit.
[0023] It is favorable when the material of the wrapper is cardboard, such as duplex, mini-corrugated,
semi-corrugated, or corrugated cardboard. The corrugations of corrugated or semi-corrugated
cardboard preferably extend transversely to the folding lines.
[0024] Embodiments of the packing unit according to the invention are shown in the drawing,
in which
Fig. 1 shows a packing unit in front elevation;
Fig. 2 shows the packing unit of Fig. 1 in front elevation during its manufacture;
Fig. 3 is a plan view taken on the line III in Fig. 2;
Fig. 4 shows the blank of the packing unit of Fig. 1;
Fig. 5 shows a second embodiment in front elevation;
Fig. 6 shows the blank of the wrapper of the packing unit of Fig. 5;
Fig. 7 is a front elevation of a third embodiment; and
Fig. 8 shows the blank of the wrapper of the packing unit of Fig. 7.
[0025] In Fig. 1, cf. also Fig. 3, the packing unit comprises a plurality of cartons 2 of
a rectangular block shape arranged in parallel rows 1. The rows 1 lie against one
another. First 21 and last cartons 22 of the rows 1 together form a first 11 and a
last end face 12, respectively. The packing unit in addition comprises a wrapper 3
around the rows 1 of cartons 2. The wrapper 3 is folded about folding lines 30 which
extend parallel to the rows 1 of cartons, see Figs. 2 and 4, and accordingly has a
base surface 31, mutually opposed side surfaces 32, and a top 33 opposite the base
surface 31. The base surface 31 is a surface in one part to which on either side the
side surfaces 32 are connected. The wrapper 3 keeps the cartons 2 enclosed in the
rows 1.
[0026] The packing unit has edge strips 311, 321, 331 having a width
w which are integral with the wrapper 3 and extend along the base surface 31, the side
surfaces 32 and the top 33 of the wrapper 3 and which are connected thereto. These
edge strips lie against the first 11 and the last end face 12 and are fastened to
one another, for example with glue, for example with a hot-melt glue. The fastening
points are indicated with dots in Fig. 1. The wrapper 3 holds on to each carton 21,
22 situated in an end face 11, 12 by means of its edge strips 311, 321, 331.
[0027] In Fig. 1, the top 33 is subdivided into a first 33' and a second part 33". The parts
33', 33" are each connected to a respective side surface 32 along a folding line 30,
cf. Fig. 4, and lie at a distance from one another, cf. Fig. 1.
[0028] The parts 33', 33" of the top 33 have a dimension
w which corresponds to the width of the edge strips 321 of the side surfaces 32, see
also Fig. 4.
[0029] The base surface 31 of the wrapper, see Figs. 3 and 4, has perforation lines 312
which extend at a distance
w along the folding lines 30, and each have an extension 314 into the relevant edge
strips 311.
[0030] During manufacture of the packing unit, see Fig. 4, the parts 33' and 33" of the
top may be folded about the relevant folding lines 30 and preshaped. The edge strips
321 of the side surfaces 320 are similarly preshaped. The edge strips 331 may then
be folded and attached to the relevant edge strips 321. If so desired, the edge strips
311 of the base surface 31 may also have been folded during this procedure. The wrapper
3 being manufactured then has the shape shown in Figs. 2 and 3. The wrapper 3 being
manufactured at that moment resembles two interconnected plateaus each lacking one
raised rim. Ten cartons 2 are placed on each side surface 32 in Fig. 2, in the embodiment
shown each containing two 230 V 60 W incandescent lamps. In the Fig. the cartons 2
are always present in two rows 1 of five cartons 2 each. As shown in Fig. 2, the canons
2 together with the accompanying side surface 32 can be pivoted through 90° about
the relevant folding line 30. The packing unit is complete when the fastenings between
the edge strips 321 and 311 have been made. The unit then has rows 1 in two layers,
with two rows 1 next to one another in each layer. If so desired, or in the case of
cartons 1 having different dimensions, the unit could comprise, for example, more
than two layers of rows.
[0031] It is apparent from Fig. 4 that the parts 33' and 33" of the top have a width
w which corresponds to the width
w of the edge strips 311, 321 and 331. It is furthermore apparent that the distance
from each perforation line 312 to the adjacent folding line 30 also corresponds to
this width w. When the portion of the base surface 31 with its edge strips 311 has
been torn from between the perforation lines 312 and the extensions 314 thereof in
the packing unit of Fig. 1, two plateaus with raised rims and filled with ten canons
2 each will have been created. Corrugated cardboard with a weight 455 g/m
2 and a compression value of 1850 N was used for the wrapper 3 in the Figures.
[0032] In the unit shown, 103 g corrugated cardboard was used for packing the twenty cartons
2, whereas 207 g would be necessary for forming the known packing unit mentioned in
the opening paragraph with the same cartons.
[0033] In Figs. 5 to 8, corresponding parts have the same reference numerals as in the preceding
Figures.
[0034] In Fig. 5, see also Fig. 6, the top 33 has two equal parts 33' and 33" which abut
against one another centrally between the side surfaces 32. Each part has a perforation
line 332 with an extension 334 into the relevant edge strips 331, see Fig. 6. If the
two pans 33' and 33" are shortened through tearing-off of the material laterally of
the perforation lines 332, 334, and if the portion between the perforation lines 312
is torn away in the base surface 31, two plateaus will have been created with raised
rims of equal height, filled with cartons.
[0035] The packing unit of Figs. 7 and 8 has a top 33 with a first part 33' having a dimension
w and a second part 33" having a tag 335 which projects loosely into the wrapper 3
in Fig. 7, whereby it is prevented that the second part 33" can slide over the first
part 33' under pressure. The second part 33" abuts against the first part 33' laterally
of the tag 335. The edge strips 331 of the second part 33" have tongues 336 which
lie on the inside of the edge strips 331 of the first part 33', loosely underneath
them in Fig. 7. They give the unit an increased torsional stiffness.
[0036] The first part 33' has a dimension equal to the width
w of the edge strips 321. The second part 33" has a perforation line 332 at a distance
w to the folding line 30. The second part 33" may be torn off along the perforation
line 332, and the base surface 31 can be removed between the perforation lines 312.
Two plateaus containing cartons are created thereby.
1. A packing unit comprising:
a plurality of cartons (2) of a rectangular block shape arranged in parallel rows
(1), which rows (1) lie against one another, first (21) and last end cartons (22)
of the rows (1) together forming a first (11) and a last end face (12), respectively;
a wrapper (3) around the rows (1) of cartons (2), which wrapper (3) is folded about
folding lines (30) which extend parallel to the rows (1) of cartons (2), thus forming
a base surface (31), mutually opposed side surfaces (32), and a top (33) opposite
the base surface (31), the base surface being a surface in one part connected to the
side surfaces on either side
which wrapper (3) keeps the cartons (2) enclosed in the rows (1),
edge strips (311, 321, 331) having a width are present, which strips are integral
with the wrapper (3) and extend along the base surface (31), the side surfaces (32),
and the top (33) of the wrapper (3) and are connected thereto, which strips lie against
the first (11) and the last end face (12), and which strips are fastened to one another,
whereby the wrapper (3) holds on to each and every carton (21, 22) lying in the first
or the last end face (11, 12), as applicable,
characterized in that the base surface (31) has perforation lines (312) which lie at a distance from one
another, extend alongside the folding lines (30), and have extensions (314) into the
edge strips (311), of the base surface (31).
2. A packing unit comprising:
a plurality of cartons (2) of a rectangular block shape arranged in parallel rows
(1), which rows (1) lie against one another, first (21) and last end cartons (22)
of the rows (1) together forming a first (11) and a last end face (12), respectively;
a wrapper (3) around the rows (1) of cartons (2), which wrapper (3) is folded about
folding lines (30) which extend parallel to the rows (1) of cartons (2), thus forming
a base surface (31), mutually opposed side surfaces (32), and a top (33) opposite
the base surface (31), the base surface being a surface in one part connected to the
side surfaces on either side
which wrapper (3) keeps the cartons (2) enclosed in the rows (1),
edge strips (311, 321, 331) having a width are present, which strips are integral
with the wrapper (3) and extend along the base surface (31), the side surfaces (32),
and the top (33) of the wrapper (3) and are connected thereto, which strips lie against
the first (11) and the last end face (12), and which strips are fastened to one another,
whereby the wrapper (3) holds on to each and every carton (21, 22) lying in the first
or the last end face (11, 12), as applicable,
characterized in that the top (33) has at least a perforation line (332) at a distance
w from the adjacent folding line (30), said at least a perforation line (332) extends
into the edge strips (331) of the top (33).
3. A packing unit as claimed in Claim 1, characterized in that the top (33) has at least a perforation line (332) at a distance w from the adjacent folding line (30).
4. A packing unit as claimed in Claim 1, 2 or 3, characterized in that the top (33) is divided into a first (33) and a second part (33"), each part being
connected to a respective side surface (32) along a folding line (30).
5. A packing unit as claimed in Claim 4, characterized in that the first part (33') has a dimension which corresponds to the width w of the edge strips (321) of the side surfaces (32).
6. A packing unit as claimed in Claim 5, characterized in that the second part (33") has a tag (335) which projects into the wrapper (3).
7. A packing unit as claimed in Claim 5, characterized in that the two parts (33', 33") of the top (33) have a dimension equal to w.
1. Verpackungseinheit mit:
einer Vielzahl von in parallelen Reihen (1) angeordneten Kartons (2) in Form rechteckiger
Blöcke, wobei die Reihen (1) gegeneinander anliegen und erste (21) und letzte Kartons
(22) der Reihen (1) zusammen eine erste (11) bzw. eine letzte Stirnfläche (12) bilden;
einem Wickel (3) um die Reihen (1) Kartons (2) herum, welcher Wickel (3) um parallel
zu den Reihen (1) Kartons verlaufende Faltlinien (30) gefaltet ist und dadurch eine
Grundfläche (31), einander gegenüber stehende Seitenflächen (32) und eine Oberseite
(33) gegenüber der Grundfläche (31) bildet, wobei die Grundfläche eine Fläche ist,
die in einem Teil zu beiden Seiten mit den Seitenflächen verbunden ist,
welcher Wickel (3) die Kartons (2) in den Reihen (1) umschlossen hält,
wobei Randstreifen (311,321, 331) mit einer Breite vorhanden sind, welche Streifen
mit dem Wickel aus einem Stück sind und entlang der Grundfläche (31), den Seitenflächen
(32) und der Oberseite (33) des Wickels (3) verlaufen und damit verbunden sind, wobei
die Streifen gegen die erste (11) und die letzte Stirnfläche (12) anliegen und aneinander
befestigt sind, wodurch der Wickel (3) gegebenenfalls jeden einzelnen in der ersten
oder der letzten Stirnfläche (11, 12) gelegenen Karton (21, 22) festhält,
dadurch gekennzeichnet, daß die Grundfläche (31) auf Abstand voneinander liegende, entlang den Faltlinien (30)
verlaufende Perforationslinien (312) hat, die Verlängerungen (314) in den Randstreifen
(311) der Grundfläche (31) haben.
2. Verpackungseinheit mit:
einer Vielzahl von in parallelen Reihen (1) angeordneten Kartons (2) in Form rechteckiger
Blöcke, wobei die Reihen (1) gegeneinander anliegen und erste (21) und letzte Kartons
(22) der Reihen (1) zusammen eine erste (11) bzw. eine letzte Stirnfläche (12) bilden;
einem Wickel (3) um die Reihen (1) Kartons (2) herum, welcher Wickel (3) um parallel
zu den Reihen (1) Kartons verlaufende Faltlinien (30) gefaltet ist und dadurch eine
Grundfläche (31), einander gegenüber stehende Seitenflächen (32) und eine Oberseite
(33) gegenüber der Grundfläche (31) bildet, wobei die Grundfläche eine Fläche ist,
die in einem Teil zu beiden Seiten mit den Seitenflächen verbunden ist,
welcher Wickel (3) die Kartons (2) in den Reihen (1) umschlossen hält,
wobei Randstreifen (311,321, 331) mit einer Breite vorhanden sind, welche Streifen
mit dem Wickel aus einem Stück sind und entlang der Grundfläche (31), den Seitenflächen
(32) und der Oberseite (33) des Wickels (3) verlaufen und damit verbunden sind, wobei
die Streifen gegen die erste (11) und die letzte Stirnfläche (12) anliegen und aneinander
befestigt sind, wodurch der Wickel (3) gegebenenfalls jeden einzelnen in der ersten
oder der letzten Stirnfläche (11, 12) gelegenen Karton (21, 22) festhält,
dadurch gekennzeichnet, daß die Oberseite (33) in einem Abstand
w von der benachbarten Faltlinie (30) zumindest eine Perforationslinie (332) hat, wobei
diese zumindest eine Perforationslinie (332) sich bis in die Randstreifen (331) der
Oberseite (33) erstreckt.
3. Verpackungseinheit nach Anspruch 1, dadurch gekennzeichnet, daß die Oberseite (33) im Abstand w von der benachbarten Faltlinie (30) zumindest eine Perforationslinie (332) hat.
4. Verpackungseinheit nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß die Oberseite (33) in einen ersten (33') und einen zweiten Teil (33") geteilt ist,
wobei jeder Teil entlang einer Faltlinie (30) mit einer jeweiligen Seitenfläche (32)
verbunden ist.
5. Verpackungseinheit nach Anspruch 4, dadurch gekennzeichnet, daß der erste Teil (33') eine Abmessung hat, die der Breite w der Randstreifen (321) der Seitenflächen (32) entspricht.
6. Verpackungseinheit nach Anspruch 5, dadurch gekennzeichnet, daß der zweite Teil (33") eine Lippe (335) hat, die in den Wickel (3) hinein ragt.
7. Verpackungseinheit nach Anspruch 5, dadurch gekennzeichnet, daß beide Teile (33',33") der Oberseite (33) eine Abmessung gleich w haben.
1. Unité d'emballage comprenant:
une pluralité de cartonnages pliants (2) ayant une forme de bloc rectangulaire qui
sont agencés dans des rangées parallèles (1), lesquelles rangées (1) se situent les
unes contre les autres, des premiers (21) et des derniers cartonnages pliants (22)
des rangées (1) formant ensemble respectivement une première (11) et une dernière
face d'extrémité (12);
une enveloppe (3) étant fixée autour des rangées (1) de cartonnages pliants (2), laquelle
enveloppe (3) est pliée autour de lignes de pliage (30) qui s'étendent en parallèle
aux rangées (1) de cartonnages pliants (2), formant ainsi une surface de base (31),
des surfaces latérales mutuellement opposées (32) et un sommet (33) à l'opposé de
la surface de base (31), la surface de base étant une surface dans une partie qui
est reliée aux surfaces latérales des deux côtés,
laquelle enveloppe (3) maintient les cartonnages pliants (2) enfermés dans les rangées
(1),
des bandes de bord (311, 321, 331) ayant une largeur sont présentes, lesquelles bandes
forment corps avec l'enveloppe (3) et s'étendent le long de la surface de base (31),
des surfaces latérales (32) et du sommet (33) de l'enveloppe (3) et y sont reliées,
lesquelles bandes se situent contre la première (11) et la dernière face d'extrémité
(12), et lesquelles bandes sont fixées les unes aux autres, l'enveloppe (3) s'accrochant
à chaque et à tout cartonnage pliant (21, 22) qui se situe, le cas échéant, dans la
première ou la deuxième face d'extrémité (11, 12),
caractérisée en ce que la surface de base (31) présente des lignes de perforation (312) qui se situent les
unes à une certaine distance espacée des autres, qui s'étendent le long des lignes
de pliage (30) et qui présentent des extensions (314) dans les bandes de bord (311)
de la surface de base (31).
2. Unité d'emballage comprenant:
une pluralité de cartonnages pliants (2) ayant une forme de bloc rectangulaire qui
sont agencés dans des rangées parallèles (1), lesquelles rangées (1) se situent les
unes contre les autres, des premiers (21) et des derniers cartonnages pliants (22)
des rangées (1) formant ensemble respectivement une première (11) et une dernière
face d'extrémité (12);
une enveloppe (3) étant fixée autour des rangées (1) de cartonnages pliants (2), laquelle
enveloppe (3) est pliée autour de lignes de pliage (30) qui s'étendent en parallèle
aux rangées (1) de cartonnages pliants (2), formant ainsi une surface de base (31),
des surfaces latérales mutuellement opposées (32) et un sommet (33) à l'opposé de
la surface de base (31), la surface de base étant une surface dans une partie qui
est reliée aux surfaces latérales des deux côtés,
laquelle enveloppe (3) maintient les cartonnages pliants (2) enfermés dans les rangées
(1),
des bandes de bord (311, 321, 331) ayant une largeur sont présentes, lesquelles bandes
forment corps avec l'enveloppe (3) et s'étendent le long de la surface de base (31),
des surfaces latérales (32) et du sommet (33) de l'enveloppe (3) et y sont reliées,
lesquelles bandes se situent contre la première (11) et la dernière face d'extrémité
(12), et lesquelles bandes sont fixées les unes aux autres, l'enveloppe (3) s'accrochant
à chaque et à tout cartonnage pliant (21, 22) qui se situe, le cas échéant, dans la
première ou la deuxième face d'extrémité (11, 12),
caractérisée en ce que le sommet (33) présente au moins une ligne de perforation (332) à une distance w
espacée de la ligne de pliage (30), ladite au moins une ligne de perforation (332)
s'étendant dans les bandes (331) du sommet (33).
3. Unité d'emballage selon la revendication 1, caractérisée en ce que le sommet (33) présente au moins une ligne de perforation (332) à une distance w
espacée de la ligne de pliage adjacente (30).
4. Unité d'emballage selon la revendication 1, 2 ou 3, caractérisée en ce que le sommet (33) est divisé en une première (33') et en une deuxième partie (33"),
chaque partie étant reliée à une surface latérale respective (32) le long d'une ligne
de pliage (30).
5. Unité d'emballage selon la revendication 4, caractérisée en ce que la première partie (33') présente une dimension qui correspond à la largeur w des
bandes de bord (321) des surfaces latérales (32).
6. Unité d'emballage selon la revendication 5, caractérisée en ce que la deuxième partie (33") présente une patte (335) qui s'étend dans l'enveloppe (3).
7. Unité d'emballage selon la revendication 5, caractérisée en ce que les deux parties (33', 33") du sommet (33) présentent une dimension qui est égale
à w.