U.S. patent number 3,827,614 [Application Number 05/233,429] was granted by the patent office on 1974-08-06 for packaging carrier.
This patent grant is currently assigned to International Paper Company. Invention is credited to Robert O. Baxter, Carl A. Byars, Richard J. Nadaskay, Lamar R. Roark.
United States Patent |
3,827,614 |
Baxter , et al. |
August 6, 1974 |
PACKAGING CARRIER
Abstract
Disclosed herein is a single wall, tubular packaging carrier
constructed of a flexible material such as paper. The tubular
packaging carrier is open at both transverse ends and is provided
with a carrying handle disposed adjacent to a longitudinal edge and
affixed thereto by sewing. At least three plies of flexible
material are associated with the aforesaid longitudinal edge.
Inventors: |
Baxter; Robert O. (Camden,
AR), Byars; Carl A. (Kansas City, MO), Nadaskay; Richard
J. (Freehold, NJ), Roark; Lamar R. (Camden, AR) |
Assignee: |
International Paper Company
(New York, NY)
|
Family
ID: |
22877217 |
Appl.
No.: |
05/233,429 |
Filed: |
March 10, 1972 |
Current U.S.
Class: |
294/156;
229/117.23; 294/164 |
Current CPC
Class: |
A45C
3/00 (20130101) |
Current International
Class: |
A45C
3/00 (20060101); A45c 003/00 () |
Field of
Search: |
;224/45P,49,45E,45H
;229/54,52A |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Spar; Robert J.
Assistant Examiner: Noland; Kenneth
Attorney, Agent or Firm: Michaelsen; Alfred L.
Claims
We claim:
1. A packaging carrier which comprises:
a. continuous single ply sleeve open at both ends and having an
overlapped, longitudinally disposed glue joint;
b. a carrying handle adjacent to and projecting inwardly from one
longitudinal edge of said sleeve;
c. at least one ply of sheet material disposed interiorly of and
adhered to said sleeve adjacent to said longitudinal edge;
d. a strip of sheet material disposed exteriorly of said sleeve,
around said longitudinal edge, along at least a major portion of
said longitudinal edge; and
e. stitching along at least a major portion of said longitudinal
edge, said stitching being so disposed as to engage at least two
plies of said sleeve , said at least one ply of sheet material,
said exteriorly disposed strip of sheet material and the outward
longitudinal area of said carrying handle.
2. The packaging carrier of claim 1 wherein said longitudinal edge
is so disposed as to position said overlapped glue joint proximate
thereto and said at least one ply of sheet material includes one
ply of said overlapped glue joint.
3. The packaging wrapper of claim 2 wherein said longitudinal edge
is coincident with one of the terminal, longitudinal edges of said
single ply of sheet material.
4. The packaging carrier of claim 2 wherein said sheet material is
paper having a basis weight of 70 lbs.
5. The packaging carrier of claim 1 wherein said one ply of sheet
material is discontinuous with respect to the sleeve of said
packaging carrier.
6. A packaging carrier which comprises:
a. a continuous single ply sleeve open at both ends and having an
overlapped, longitudinally disposed glue joint;
b. a carrying handle adjacent to and projecting inwardly from one
longitudinal edge of said sleeve;
c. two plies of sheet material disposed interiorly of and adhered
to said sleeve ,adjacent to said longitudinal edge along at least a
major portion thereof; and
d. a strip of sheet material disposed exteriorly of said sleeve
around said longitudinal edge along at least a major portion of
said longitudinal edge; and
e. stitching along at least a major portion of said longitudinal
edge, said stitching so disposed as to engage said exteriorly
disposed strip of sheet material, said two plies of interiorly
disposed sheet material, two opposed walls of said sleeve and the
outward, longitudinal area of said carrier handle.
Description
BACKGROUND OF THE INVENTION
1. Field to Which the Invention Pertains
Broadly stated, the instant invention pertains to the packaging
art. More specifically, the instant invention is directed at
providing a construction for packaging bulky, but substantially
self-contained articles, e.g., rolls of fiberglass. Bulky,
substantially self-contained articles such as rolls of fiberglass
are often purchased, or locally transported, in quantity. For
example, home owners often purchase small quantities of rolls of
fiberglass which must be carried from place to place, as from the
point of purchase to their car. Similarly, contractors insulating a
house must transport such rolls from the point of delivery to the
appropriate location within a house.
In view of these factors, it is desirable to provide such items in
a package which is so constructed and arranged as to facilitate the
local transportation of a number of such articles. Of course, any
such package must have the attributes of being able to accommodate
bulky articles, facilitate the carrying thereof, and be strong
enough to withstand the stresses to which it may be subjected. In
addition, it is evident that any such package must be exceedingly
low in cost which in turn dictates a construction amenable to high
speed manufacture. Another structural attribute which such a
package must possess in order to be commercially acceptable is ease
of packaging. In other words, the construction of such a package
must be such that the manufacturer of the articles to be packaged
can quickly package his articles therein. Moreover, in addition to
the structural and functional attributes which such a package must
possess, the package must be such that when the articles are
contained therein, the appearance thereof is not esthetically
offensive since the package, rather than the articles contained
therein, will be primarily visible to an observer, for example a
prospective purchaser.
The provision of such a package is the field to which the instant
invention pertains.
2. Prior Art
The prior art relating to carrying devices or packages which
facilitate carrying is, so far as applicants are aware, deficient
with respect to providing a construction which serves a packaging
function for bulky articles while simultaneously facilitating the
carrying of such articles. For example, patents such as U.S. Pat.
No. 1,971,322, and 3,481,519 disclose sling type carriers which
serve a carrying function but cannot be employed for the packaging
of articles to be carried.
Some prior art carrying devices clearly contemplate a complicated
construction utilizing an expensive material. For example, the
carrying device of U.S. Pat. No. 2,296,080 is adaptable for
carrying wearing apparel. As such, it is designed for reuse rather
than being designed as an inexpensive, disposable item.
Other carrying devices have been designed to package and facilitate
the transportation of specific materials, for example liquids.
Thus, U.S. Pat. No. 2,936,927 discloses a paper board milk
container with a handle. While such a construction is useful for
the packaging of materials such as milk, wherein the associated
package is rather small, it is clear that such a package could not
be expanded for utilization in conjunction with bulky articles
since the related material costs would be prohibitive. Other
patents which disclose articles of manufacture adapted for
packaging or carrying are U.S. Pat. Nos. 2,501,037, 2,936,927,
2,234,180 and 2,967,650. While all of the constructions disclosed
in the aforementioned patents relate to the same general art as our
invention, i.e. the packaging art, they all possess disadvantages
similar to those heretofore mentioned vis-a-vis their use in
connection with the packaging of bulky articles.
As will hereinafter be more fully pointed out, our invention bears
a resemblance to a bag construction provided with a handle. Thus,
it is instructive to consider some of the prior art relating to
bags.
While the prior art relating to bags did contemplate the use of a
handle in respect thereto, all such prior handled bag constructions
were utilized in connection with bags (particularly multi-wall
bags) for packaging granulated materials or, more generally,
materials which were not substantially self-contained. Examples of
such bag constructions are presented in U.S. Pat. No. 2,947,464,
U.S. Pat. No. 2,625,318 and Canadian Patent No. 542,114. As such,
such bags are not adaptable for use in connection with the
packaging of bulky articles.
DESCRIPTION OF DRAWINGS
FIG. 1 is a perspective view of a tube from which our invention may
be constructed.
FIG. 1a is a perspective view of a modified tube from which are
invention may be constructed.
FIG. 2 is a perspective view of a preferred embodiment of our
invention.
FIG. 3 is a fragmentary sectional view of the preferred embodiment
shown in FIG. 2.
FIG. 4 is a plan view of one form of handle useful in the
construction of the instant invention.
FIG. 5 is a fragmentary side view, in section, of another
embodiment of our invention.
FIG. 6 is a fragmentary side view, in section, of another
embodiment of our invention.
SUMMARY OF THE INVENTION
In accordance with our invention, there is provided a packaging
carrier constructed from a single ply of sheet material, such as
paper, which has been joined longitudinally by an overlapped, glue
joint. Both ends of the packaging carrier, which are transverse to
the longitudinal overlapped glue joint, are open. Disposed adjacent
to a longitudinal edge which is parallel to the aforementioned
overlapped glue joint, there is provided a handle which projects
inwardly from the longitudinal edge. Although the packaging carrier
is of a single wall construction, the packaging carrier in the
region of the longitudinal edge and adjacent to the aforementioned
handle is provided with at least three plies. Along a major portion
of the longitudinal edge, stitching is provided in such a manner as
to engage the associated three or more plies. In the area of the
handle, the stitching engages both the handle and all the adjacent
plies.
In the most preferred embodiment of our invention, a total of six
plies are employed in the region of the longitudinal edge and
adjacent to the handle. Two of the plies are supplied by the
opposing walls of the packaging carriers. The third and fourth ply
are comprised of a strip of material, e.g., paper, affixed to the
interior of the packaging carrier on the inner surface of the two
opposing side walls of the packaging carrier adjacent the
longitudinal edge. In this preferred embodiment, the third and
fourth plies are so affixed, as by gluing, during the manufacture
of the tube which forms the packaging carrier. Finally, disposed
exteriorly of the packaging carrier and around the aforementioned
longitudinal edge, a second strip of material, e.g., paper, is
provided thus constituting the fifth and sixth plies. Finally,
stitching is provided through all six plies and the aforementioned
handle.
DESCRIPTION OF PREFERRED EMBODIMENTS
Referring to FIG. 1 of the drawings, there is shown therein a tube
constructed of a single ply of sheet material, preferably paper.
Those skilled in the art of manufacturing paper bags will recognize
the construction shown in FIG. 1, and generally indicated by the
reference No. 10, as being a tube of the type commonly produced on
a bag tuber. Those skilled in the bag art will appreciate that
there is a significant directional orientation associated with such
paper tubes. More specifically, tubes of the type shown in FIG. 1
are formed on a bag tuber from a continuous roll of sheet material
wherein, as the sheet material passes through the tuber, the sheet
material is wrapped so as to form a tube wherein the longitudinal
edges overlap. Prior to any physical contact between the surfaces
of the sheet material adjacent to the longitudinal edges, an
adhesive is applied to at least one of the aforementioned surfaces.
Subsequently, the two surfaces adjacent to the longitudinal edges
are brought into overlapping relation thus providing a glued,
overlapped, longitudinal joint. Subsequent thereto, the tube thus
formed may be transversely cut to provide a tube of any desired
length.
Accordingly, one may obtain a tube of the type shown in FIG. 1
having longitudinal edges 11, 16 and transverse edges 17, 17', 12
and 12'. The single wall of material which forms the tube is joined
at the overlapped, longitudinal, glue joint defined by the
longitudinal area between the lines 14 and 15 wherein the lines 14
and 15 represent the longitudinal terminal edges of the single wall
which comprises the tube. For purposes of orientation, it may be
said that the tube 10, as shown in FIG. 1, is comprised of a rear
panel 31 and a front panel defined by the areas 30 and 32.
Single wall paper tubes of the type shown in FIG. 1 and generally
designated 10 are, as heretofore mentioned, well known to those
skilled in the bag art and are readily available for purchase.
Moreover, because such tubes are manufactured on hihg-speed
machinery such as a bag tuber, single wall paper tubes of the type
shown in FIG. 1 are quite inexpensive -- a necessary factor for
providing a packaging carrier. Still further, paper tubes as the
type shown in FIG. 1 may be manufactured from paper which has
physical properties specifically selected to meet the structural
requirements of the packaging carrier. For example, a wide variety
of basis weights are available. (Basis weight is a term commonly
used in the paper industry and, with respect to paper, designates
the weight of the paper per three thousand square feet.) Similarly,
paper can be selected to provide a particular tensile strength or a
particular bursting (Mullen) strength. Additionally, it is
advantageous in certain circumstances to utilize so-called
extensible paper in the construction of our invention.
Referring to FIG. 1A, an alternate form of a tube is shown which
may profitably be used in the practice of our invention. The tube
of FIG. 1A, generally designated 10a, is provided with a gusset at
one longitudinal edge, i.e., panels defined by edges 16a--16b and
16b--16c are formed in the side of the tube. Tuber machines
commonly employed in the bag industry can easily form such a gusset
construction. Providing at least one gusset at the side of the tube
may be advantageous in the construction of our packaging carrier as
it will facilitate the opening thereof as well as the insertion of
bulky articles therein.
While tubes of the type shown in FIGS. 1 and 1A could be useful for
the packaging of bulky, self-contained articles such as rolls of
fiberglass insulation, such a packaging means would not facilitate
the carrying of the resulting package. Thus, it is the object of
our invention to provide carrying means, in combination with a
packaging construction of the type shown in FIGS. 1 and 1A, while
nevertheless not substantially increasing the cost thereof. As will
now be described, our invention provides such a carrying means in
combination with tubes of the type shown in FIGS. 1 and 1A.
In order to comprehend the significance of our invention, it must
be appreciated that since the tubular constructions shown in FIGS.
1 and 1A are of the single-wall type, the mere addition of a
carrying handle thereto would be self-defeating since the single
wall of the tube could not withstand the high local stress that
would be generated by such a handle when the package was carried.
Of course, a simple answer to this problem would be to provide a
multi-wall tube of the type commonly used in the bag art to package
heavy, granulated materials, such as fertilizer. However, this
approach would also be self-defeating since providing a multi-wall
tube would result in a construction which was prohibitively high in
cost. These conflicting requirements and objectives are all
satisfied by our invention, as will now be described.
Referring to FIGS. 2 and 3, a preferred embodiment of our invention
is shown wherein, as may be noted, there is utilized a tube of the
type generally shown in FIG. 1 and, when appropriate, referenced by
the same numbers as in FIG. 1. The required carrying means is
provided by a carrying handle 21. The carrying handle 21 is located
adjacent to but projecting inwardly from the longitudinal edge 11
of the tube 10. Additionally, in the preferred embodiment of our
invention shown in FIG. 2, additional plies of material are
provided adjacent to the handle 21. More specifically, referring to
FIGS. 2 and 3, a strip 20 is disposed exteriorly of the packaging
carrier and around the longitudinal edge 11, either along the
entire length of the longitudinal edge 11 or at least a major
portion thereof, thus providing two plies of paper transverse to
the edge 11. In a somewhat similar fashion, a strip of paper 25 is
provided interiorly of the bag adjacent to the longitudinal edge 11
thus providing two additional plies transverse to the edge 11.
Finally, the walls 12 and 17 of the tube provide the fifth and
sixth ply transverse to the tube. We have found it to be
particularly convenient to provide the strip 25 during the
formation of the tube 10 whereby the strip 25 is inserted into and
affixed to, for example by gluing, the tube 10 during the formation
thereof. Affixing the strip 10 to the interior of the bag by gluing
or other similar means has been found to be structurally
advantageous.
With the six plies of paper provided and disposed as heretofore
described along with the handle 21, there is also provided
stitching 22 through all of the aforementioned six plies as well as
the handle 21. Stitching 22 can be provided by a standard sewing
apparatus as commonly utilized in the bag industry. As may be noted
from FIG. 2, the stitching 22 is preferably provided along the
entire longitudinal edge of the tube 10 but at a minimum would be
provided along at least a major portion of said longitudinal
edge.
With reference to FIGS. 3 and 4, it may be noted that the carrying
handle is of a standard configuration wherein a hand opening is
provided by the edges 42 and 43 and the overall handle is defined
by an outward edge 44 and an inward edge 45. To insure the
successful utilization of the handle in the combination of our
invention, the handle should preferably have a wide outward
longitudinal area, i.e., the area between edges 42 and 44. In this
manner, one achieves relative assurance that when the handle 21 is
initially disposed adjacent to the longitudinal edge 11, a
significant area will be available for engagement by the stitching.
Of course, the material of which the handle 21 is constructed must
be such as to permit the puncture thereof by a sewing needle. In
this connection, we have found it advantageous to employ a carrying
handle constructed of a polymeric material such as a polyolefin
although the selection of a particular material for the carrying
handle 21 will generally be dictated by factors indicated
hereinbefore.
Referring again to FIG. 3, it is to be understood that the
disposition of the handle 21 inwardly of the longitudinal edge is
of significance. In other words, rather than having the carrying
handle 21 disposed as shown in FIG. 3 wherein the outward edge 44
is adjacent to or coincident with the longitudinal edge 11, the
handle 21 might have been reversed such that the inward edge 45 was
disposed outwardly of the longitudinal edge 11. That is to say, as
shown in FIG. 3, the handle 21 might be rotated 180.degree..
However, it has been found that such a construction would present
manufacturing difficulties. For example, if the handle 21 were to
be disposed outwardly of the longitudinal edge 11, the handle 21
may well interfere with the sewing head which performs the
stitching operation. Additionally, since the packaging carrier of
the type disclosed herein must be manufactured under high speed
conditions to insure economy, disposing the handle 21 inwardly of
the longitudinal edge facilitates the manufacturing operation since
the handle can be physically deposited upon and supported by the
walls of the tube and then proceed to the stitching operation.
Summarizing the attributes of the instant invention as shown in the
preferred embodiment of FIGS. 2 and 3, there is provided a single
wall packaging carrier with a carrying handle adjacent to but
inwardly disposed from a longitudinal edge and a plurality of plies
of material, e.g., paper, disposed adjacent to the carrying handle
and engaging all of said plies including the walls of the packaging
carrier. In this manner, the resulting packaging carrier is low in
cost because material requirements are minimized and high speed
manufacturing techniques can be employed. Moreover, the plurality
of plies associated with and engaging the handle and the packaging
carrier walls provide a mechanism for absorbing the stress
generated when goods packaged within the packaging carrier are
carried through use of the handle.
Recognizing that a plurality of plies of paper must be associated
with and engaged with the carrying handle, other constructions of
our invention are possible wherein there is provided at least three
plies of material such as paper. Thus, another embodiment of our
invention is shown in FIG. 5 wherein, in section, a fragmentary
part of a tube, such as tube 10 of FIG. 1, is shown having walls 12
and 17. The walls 12 and 17 provide two plies in the area adjacent
to the longitudinal edge 11. In addition, there is provided a
single insert 29 which constitutes the third ply. As was the case
with the embodiment of our invention shown in FIG. 3, it is
preferable to affix the insert 29 to the interior of one or both of
the walls 12 or 17 as, for example, by gluing. With the three plies
thus provided and the handle 21 disposed adjacent thereto and
inwardly of the longitudinal edge, stitching 22 engages the three
plies and the carrying handle 21 in the same manner as heretofor
described with respect to the embodiment of FIG. 2. Although it is
not evident in FIG. 5 because FIG 5 is a sectional view, the
stitching 22 should be provided along at least a major portion of
the tube parallel to the longitudinal edge 11.
A particular paper which is useful in the practice of our invention
is a 70 lb. Kraft paper, i.e., such paper may be employed to
provide the single wall of the packaging carrier. Additionally,
paper of the same type may be used for supporting plies.
Considering a packaging carrier of the type disclosed herein and
constructed of paper having a basis weight of 70 lb., it will be
appreciated that although the basis weight of the single wall is
only 70 lb., the three plies at the longitudinal edge which are
engaged by the stitching have a combined weight of 210 lb.
In the embodiment of FIG. 6, the required three plies adjacent to
the carrying handle 21 are obtained without resort to a strip
separate and distinct from the bag walls. This objective is
obtained by so folding a tube of the type shown in FIG. 1 as to
insure that a resulting longituidnal edge is near or within the
overlapped, glue joint. In this manner, the overlapped, glue joint
intrinsically provides at least two plies and at least a third ply
is longitudinal a wall of the packaging carrier. As such, the three
plies are essentially continuous whereas in the embodiment of FIG.
5 the third ply 29 was discontinuous with respect to the walls of
the packaging carrier. Thus, in the embodiment of FIG. 6, a tube of
the type shown in FIG. 1 has been creased to provide a longitudinal
edge which is coincident with the terminal, longitudinal edge 15 of
the single wall of the packaging carrier. In this manner, the wall
17 provides two plies and a third ply is provided by the terminal,
longitudinal part of the wall 17A.
Still another embodiment of our invention employs a carrying handle
of the type heretofore described in combination with a gusset,
e.g., of the type shown in FIG. 1A. Referring to FIGS. 1A and 4, a
handle 21 would be disposed adjacent to a gusset edge, e.g. 16A.
Stitching is provided which engages the gusset and the handle. In
this manner, the stitching engages both the handle and four plies
of sheet material. For additional strength, a strip of sheet
material may be disposed around both longitudinal edges 16A and
16C. In this event, the stitching would engage the four plies which
are the walls of the packaging carrier and the two plies which are
the sheet material disposed around the longitudinal edges 16A and
16C.
While we have hereinbefore presented a number of embodiments of our
invention, it is apparent that our basic construction can be
altered to provide other embodiments which utilize our invention.
Thus, it will be appreciated that the scope of our invention is to
be defined by the claims appended hereto rather than the specific
embodiments which have been hereinbefore presented by way of
example.
* * * * *