U.S. patent number 3,917,158 [Application Number 05/455,147] was granted by the patent office on 1975-11-04 for display package.
This patent grant is currently assigned to Stone Container Corporation. Invention is credited to Gus Dorofachuk, Paul Gosselin.
United States Patent |
3,917,158 |
Dorofachuk , et al. |
November 4, 1975 |
Display package
Abstract
A display package or carton formed from a single foldable
paperboard, cardboard or the like blank to include a first or
bottom panel with a hingedly connected end closure or
manufacturer's flap, a second or front panel juxtaposed the bottom
panel for adhesive attachment thereto by means of the flap, a top
panel, a pair of parallel side panels, and a rear panel parallel to
but spaced from the front panel. The flap forms a joint completing
assembly of the carton. The blank is suitable for erection into a
carton by means of automatic packaging machinery which wraps the
blank around the lading and discharges the package as a sealed
container. Means are provided for selectively separating said front
panel adjacent said manufacturer's flap, portions of the side
panels and a portion of the rear panel from the sealed container to
expose the lading and render the sealed container usable thereafter
as a display tray holding the lading.
Inventors: |
Dorofachuk; Gus (Willingboro,
NJ), Gosselin; Paul (Baltimore, MD) |
Assignee: |
Stone Container Corporation
(Chicago, IL)
|
Family
ID: |
23807595 |
Appl.
No.: |
05/455,147 |
Filed: |
March 27, 1974 |
Current U.S.
Class: |
229/241; 229/240;
229/164 |
Current CPC
Class: |
B65D
5/0227 (20130101); B65D 5/542 (20130101) |
Current International
Class: |
B65D
5/02 (20060101); B65D 5/54 (20060101); B65D
017/24 (); B65D 071/00 (); B65D 005/54 () |
Field of
Search: |
;229/37,51DB,51TS,51D,51WB ;206/44R |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Moorehead; Davis T.
Attorney, Agent or Firm: Silverman & Cass, Ltd.
Claims
What is desired to secure by Letters Patent of the United States
is:
1. A carton formed from a one-piece paperboard blank, said carton
having four side panels defining top, bottom, front and back walls
of said carton and having opposite end walls defined by overlapping
secured flaps, each of said flaps forming part of the end wall
being hingedly connected to one of said wall forming panels, a
front bottom flap hingedly connected to said bottom wall forming
panel and overlapping and being secured to a minor portion of said
front wall forming panel, said front wall having a line of weakened
strength extending generally parallel to said bottom wall at a
short distance from said bottom wall, the area between said line
and said bottom wall defining said minor portion of said front wall
to which said front bottom flap is secured, said line of weakened
strength extending into and across said front flaps connected to
said front wall, the area of each said front flap between said
weakened line extensions and said bottom wall defining said front
flap portions, said bottom wall, said minor portion of said front
wall adjacent said bottom wall which has said front flap secured
thereto, a major portion of said back wall and portions of certain
of said end wall forming flaps being separable from the remainder
of said carton to form a display tray, said end wall forming flaps
being configured and secured together so as to enable such
separation and to provide a tray having end walls each defined by a
bottom flap which extends upwardly from said bottom wall and which
has a rear section secured to a back flap extending forwardly from
said back wall and a front section secured to at least a portion of
a front flap extending rearwardly from said minor portion of said
front wall at each end of said carton, said rear section extending
further upwardly from said bottom wall than said front section to
thereby form stepped end walls.
2. A sealed carton formed from a one-piece paperboard blank
comprising, a front panel having a first flap adhesively secured
substantially along its entire length to the outer face thereof, a
top panel hingedly connected to said front panel, a rear panel
hingedly connected to said top panel and a bottom panel hingedly
connected to the rear panel and having said first flap hingedly
connected thereto, said panels each having a pair of flaps foldably
connected along opposite edges of the panel to form together side
panels of the carton, said front and rear panels having perforation
means extending thereacross to enable separation of parts thereof
one from the other, said perforation means on the front panel
extending generally parallel to said bottom panel at a short
distance therefrom and extending into and across the pair of flaps
connected thereto, to permit separation of portions of said last
mentioned flaps, said sealed carton being capable of being opened
upon separation of said designated parts to provide a display tray
including said bottom wall, said parts of the rear panel and side
walls and said first flap, said tray having a short front wall
comprised of said first flap and a part of said front panel, said
short front wall being shorter than said separated part of the rear
wall forming part of said tray and the end walls of said tray being
stepped.
3. A carton as claimed in claim 2 in which certain of said pairs of
flaps are substantially similar in configuration and
dimensions.
4. A carton as claimed in claim 2 in which certain pairs of flaps
are substantially identical in configuration, and each such flap
has a serpentine-shaped outer edge arranged in substantial registry
with a like outer edge of the second flap of the pair.
5. A carton as described in claim 2 in which said weakened line is
a line of perforations of generally V-shape.
6. The carton according to claim 1 wherein, on each end of said
carton, a top flap extends downwardly from said top wall to an edge
thereof which is generally in registry with the opposing edge of
said bottom flap, each said top flap having a rear section situated
above said rear section of said bottom flap and extending adjacent
to but not secured to said back flap, and a front section which
extends further downwardly from said top wall than said rear
section, which is situated above said front section of said bottom
flap, and which is secured to said front flap above said weakened
line extension.
7. The carton according to claim 6 wherein each said top flap and
adjacent bottom flap are substantially identical and each has a
serpentine-shaped outer edge arranged in substantial registry with
a like outer edge of the adjacent flap.
8. The carton according to claim 1 wherein said rear section of
each said bottom flap extends further upwardly from said bottom
wall then said front section thereby to form stepped end walls.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates generally to paperboard containers and more
particularly to a novel display package or container capable of
being formed from a single blank in automatic packaging machinery
which wraps the blank around the lading and discharges same as a
sealed package.
2. Description of the Prior Art
In the paperboard carton art, there are machines for folding carton
blanks with the lading or contents enclosed upon completion of the
folding operation and thereafter discharging the packages as sealed
containers. One such blank folding machine is disclosed in U.S.
Pat. Nos. 3,665,675 and 3,531,914 owned by the same assignee as
this application. The folding operation described in said patents
refers to a manufacturer's lap or flap of the carton blank being
required to be secured to form the manufacturer's joint of the
assembled container. Also, certain flaps disposed opposite to and
spaced from the said joint must be secured. This folding or
wrap-around operation requires mating panels or flaps of the carton
blank to be pressed against one another and held in face-to-face
contact until adhesive applied therebetween sets or dries.
Notwithstanding the recognized problems attendant the use of such
carton blanks, these carton blanks are widely used in high speed
carton folding machines and are desirable because of the economics
they engender for manufacturers and their customers.
To open a sealed carton of this type, it was necessary to peel back
the manufacturer's lap and separate certain of the side flaps from
their adhesive juncture to other parts of the carton in order to
expose the contents or lading. Another method available for opening
the carton was to peel back the manufacturer's lap and then
physically cut or saw the top panel of the carton from the
remainder of the carton to expose the contents. In this procedure,
the carton was not really suitable for use as a display carton.
Cartons of the type disclosed in U.S. Pat. No. 3,744,705 which are
capable of being erected and discharged as sealed cartons by means
of automatic carton folding machines are highly desired in the
packaging field because of the economics of this business. High
volume users of such packages desire high speed carton folding
machines which will enable them to package their products rapidly
and efficiently with due regard that such previous cartons are
regarded as disposable products. Consequently, in connection with
certain products, it would be very desirable to have a carton or
package capable of being formed in high speed carton folding
machines of the character alluded to above which could be used as
attractive display cartons or packages by retail outlets after the
cartons are opened. Such retail outlets thereby would be enabled to
use the same cartons in which they receive the products as display
packages in full view of retail customers and obviate the need and
attendant cost for a separate display tray packaged with the
products. To enhance the appearance and information value with
respect to the products, such cartons can be suitably
imprinted.
SUMMARY OF THE INVENTION
A wrap-around carton formed from a pre-scored foldable blank which
includes multiple panels which can be folded by automatic carton
folding machines into a sealed package containing the lading. Upon
erecting the carton blank, there is provided a so-called
manufacturer's flap for sealing the carton. The blank from which
the carton is formed has means for selectively separating certain
panels and sections of panels from the sealed carton so as to
transform this sealed carton into a display package in which the
lading is exposed and capable of being selectively withdrawn. In
separating portions of the sealed carton from the carton, there is
left a tray part capable of holding the lading safely and
conveniently while still permitting withdrawal of parts of the
lading selectively by customers desiring the product.
Other objects and advantages of the invention will become apparent
to the skilled artisan from the ensuing disclosure.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a plan view of a carton blank embodying the
invention.
FIG. 2 is a perspective view of the blank illustrated in FIG. 1 in
partially erected condition with the lading therein.
FIG. 3 is a perspective view of the carton completely assembled
from the blank illustrated in FIG. 1 and having portions of the
manufacturer's flap broken away to show lines of perforations for
separating portions of the container to render same a display
package.
FIG. 4 is an exploded perspective view showing a portion of the
package being separated from the sealed package of FIG. 3 to
provide a display tray which can function as the display
package.
DESCRIPTION OF THE PREFERRED EMBODIMENT
In FIG. 1 there is illustrated a carton blank 10 which may be die
cut from sheeting of paperboard, either corrugated or otherwise, by
conventional automatic machinery. The blank 10 is pre-scored for
folding into a sealed carton designated 12 in FIG. 3. There is
provided a front panel 14, a rear panel 16 and a top panel 18
joined between said front and rear panels. Lines of fold 20 are
provided to facilitate erection of the carton 12 in a well-known
manner. Blank 10 includes a bottom panel 22 joined to rear panel 16
along a fold line 20 and terminates in a front flap 24, more
commonly known as a manufacturer's lap or flap. Side flaps 26, 28
are joined along lines of fold to front panel 14 and side flaps 30,
32 are joined along lines of fold to rear panel 16. Top panel 18
and bottom panel 22 respectively are provided with like side flaps
34, 35 and 36, 37, as illustrated.
A line of perforations 38 extends laterally across the front panel
14 parallel with and spaced inwardly from the outer free edge 39 of
said panel. The line of perforations 38 has extensions thereof 40
extending angularly across the flaps 26 and 28 to the lateral edge
of the flap. The edge 39 is provided with an extension tab or
tongue 42 designed to be engaged in the slot 44 provided in the
line of fold 46 by means of which the panel 22 and the flap 24 are
hingedly connected together. The construction and operation of the
tongue 42 and slot 44 are described and claimed in U.S. Pat. No.
3,744,705. It is to be understood, however, that the carton blank
10 can be formed without the tongue 42 and slot 44.
Referring to FIG. 1, it can be seen that the dimensions of flaps
26, 28, 30 and 32 are substantially the same, as is their
configuration with the exception of the rounded corner 48 of each
flap 30, 32. The outer free edge 50 of each of flaps 34-37 is
serpentine or S-shaped in configuration. As seen in FIG. 1, the
serpentine edges 50 are alike in configuration and extend in the
same descending direction from the outer free edge of each toward
the manufacturer's flap 24. In this configuration, upon assembly of
the package, the edges 50 of panels 34 and 35 will register along
the length thereof, as will be the case with edges 50 of flaps 36
and 37, albeit with a slight space between the facing edges 50 as
seen in FIG. 3. The space between said facing edges of such in
registry flaps is designated 51 for purposes of clarity in FIG.
3.
Certain of the above features of the carton blank 10 generally are
conventional and comprise the usual panels and flaps of a standard
carton blank. Such blanks can assume a wide variety of
configurations and dimensions, specifics of which generally are
dictated by the size and characteristics of the items intended to
be packaged. However, all such cartons include at least a top and
bottom and front and rear panel, at least one of such panels being
provided with a manufacturer's flap, such as hinged flap 24. As
seen in FIG. 3, flap 24 abuts the front panel 14 in a face-to-face
relation with adhesive, preferably, applied to those abutting
surfaces so that the carton will remain assembled, as desired.
In addition, rear panel 16 has a line of perforation which is
generally V-shaped and extending across the entire width of the
panel 16. The V-shaped line of perforations is defined by a leg 52
which extends from the lateral edge 53 at an angle to the line of
fold 20 and a second leg 54 which extends from the opposite lateral
edge 53 at an angle to the line of fold 20 toward the leg 52. The
legs 52 and 54 are joined by an arcuate portion 55 which is in the
shape of a semi-circle located in a medial portion of the blank 16.
Thus, this line of perforations divides the panel 16 into two parts
16a and 16b, with arcuate portion 55 providing a sort of finger or
digital pullout part for starting the separation. It can be seen
that the V-shaped line of perforations can be modified to a
straight line, however, the V-shape is preferred.
The carton blank 10 may be assembled manually, or as generally will
be the case, by a packaging machine, such as described in the
aforementioned package machine patents. In FIG. 2, a partially
assembled blank 10 is shown. The blank 10 is designed and adapted
most effectively for assembly about the items intended to be
packaged. That is, the items are positioned on one of the panels
such as panel 18 of the blank 10 and the blank thereafter is
assembled. It will be noted that the flaps 28, 32 are inwardly
folded so that their free edges 56 are abutting. Front panel 14 is
vertically oriented and top panel 18 is arranged normal thereto.
The rear panel 16, not shown in FIG. 2, will be vertically arranged
parallel to the panel 14 and the bottom panel 22, not seen will be
horizontally arranged parallel to the panel 18. Areas of adhesive
61 are shown extending across the flaps 28 and 32 and a rectangular
area 62 of adhesive extends across the front panel 14 contiguous
the free edge thereof and reaches to the line of perforations 38.
Although not seen, similar areas of adhesive will be applied to the
flaps 30 and 26 on the remote side of the semi-erected carton of
FIG. 2. It will be noted that the adhesive areas cover only a
portion of the entire surface of the flap to which adhesive is
applied to facilitate separation of the carton into two parts, as
more fully described below. Further, flaps 34-37 do not have
adhesive applied thereto and hence, parts of these flaps do not
engage adhesive areas 61.
Referring to FIG. 3, in the final assembly operation, the flaps 35
and 37 have been folded into abutting relationship with the flaps
28 and 32 with flaps 37 overlying the area of adhesive 61 and the
area of adhesive 61 below perforation line 40 and with a portion,
35a of flap 35 overlying the area of adhesive 61 above perforation
line 40. Note that portion 35b of flap 35 is not adhered to flap
32. The same operation of folding will have been achieved with the
opposite pair of flaps 34 and 36 on the opposited side of the blank
30. The manufacturer's flap 24 has been folded upwardly into
abutting relationship with the panel 14 and adhesively secured over
the area 62. It should be noted from FIG. 3, however, that the
width of the flap 24 is slightly greater than the width of the area
of adhesive 62 such that the free edge 66 of the manufacturer's
flap 24 extends beyond the line of perforations 38 and thereby
serves to cover said line of perforations 28 as seen in FIG. 3.
Also, edge 66 may be crushed slightly for a short distance so as to
prevent said edge from being adhered to surface 62 and thereby
expedite withdrawal of flap 24. The carton 12 is shown in FIG. 3 in
the upright position it will take when stored, shipped or used.
However, the orientation of the carton 12 as it is formed in and
ejected from the machine disclosed in U.S. Pat. No. 3,744,705 is
one in which the manufacturer's lap is adjacent the top panel of
the package.
Referring to FIG. 4, it will be seen that the panel 14 can be
separated along the line of perforations 38 and the panel 28 can be
separated along the line of perforation 40. This permits the
portion 35b of flap 35 to be removed from its position adjacent
flap 32, i.e., from the position adjacent an adhesive-free area 60'
of the flap 32 as seen in FIG. 4. Finally, rear panel 16 can be
separated along the line of perforations 52, 54 and 55 so that the
separated portion of panel 14, entire panel 18 and separated
portion of panel 16 can be removed as a body designated 10a in FIG.
4, leaving a tray portion. The lading or contents of the package,
although not shown will be understood to remain on the tray part,
with the upstanding flap 24 and remaining front wall portion 14a
secured together to provide a short front wall for the display
tray.
As seen in FIG. 4, the display tray is formed of front wall 24,
14a, flaps 37, 32 and part of flap 28, rear wall section 16b and
flaps 30, 36 and part of 26a of flap 26, with parts 26a and the
part of flap 28 being adhesively secured respectively to flaps 36
and 37.
It is to be understood that the invention contemplates
implementation thereof in connection with other than the specific
configuration and size of carton 10 shown by way of example.
* * * * *