U.S. patent number 3,866,818 [Application Number 05/319,443] was granted by the patent office on 1975-02-18 for packaging tray.
This patent grant is currently assigned to Phillips Petroleum Company. Invention is credited to Ernest L. Smith.
United States Patent |
3,866,818 |
Smith |
February 18, 1975 |
PACKAGING TRAY
Abstract
A tray for maintaining a plurality of articles having a recessed
portion at preselected locations relative one to the other. The
tray has flaps of a configuration for wedging into recesses of
associated articles.
Inventors: |
Smith; Ernest L. (Kansas City,
MO) |
Assignee: |
Phillips Petroleum Company
(Bartlesville, OK)
|
Family
ID: |
23242257 |
Appl.
No.: |
05/319,443 |
Filed: |
December 29, 1972 |
Current U.S.
Class: |
206/427; 206/429;
206/149 |
Current CPC
Class: |
B65D
71/10 (20130101); B65D 71/42 (20130101); B65D
2571/00018 (20130101) |
Current International
Class: |
B65D
71/42 (20060101); B65D 71/00 (20060101); B65D
71/40 (20060101); B65d 005/20 () |
Field of
Search: |
;206/65C,65S,162,192,149
;229/30 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Price; William I.
Assistant Examiner: Farrow; Douglas B.
Claims
1. A tray for maintaining a plurality of articles at preselected
locations relative one to the other, each article having a recessed
portion, said tray having at least one flap, each flap having an
edge connected to said tray along a hinged line of attachment, and
each said flap having a portion which is of a width (w) greater
than the width of the recessed portions of said articles, each said
flap being positioned to be wedged
2. A tray in accordance with claim 1 wherein said flap has a flap
score
3. A tray in accordance with claim 1 wherein said flap score line
is
4. A tray in accordance with claim 1 wherein said tray has first
and second ends associated with first and second end portions, each
said end portion having at least one said flap and wherein each
said hinged line of attachment is spaced from its associated end of
said tray with each flap extending from its hinged line of
attachment toward the opposed end of
5. A tray in accordance with claim 4 wherein there are two said
flaps
6. A tray in accordance with claim 1 wherein said tray is cut to
form each said flap and wherein a score line defines said hinged
line of attachment.
7. A tray in accordance with claim 1 additionally comprising first
and second score lines extending across respective first and second
end portions associated with respective first and second ends of
said tray, each said score line being located between the hinged
line of attachment of said at least one flap and its associated
tray end, to form respective
8. A tray in accordance with claim 7 wherein said first and second
score lines are generally parallel to the hinged connection of the
adjacent at
9. A tray in accordance with claim 8 additionally comprising third
and fourth score lines each extending along a respective side edge
of said tray and spaced inwardly from said respective side edge to
form respective
10. A tray in accordance with claim 1 additionally comprising third
and fourth score lines each extending along a respective side edge
of said tray and spaced inwardly from said respective side edge to
form respective third and fourth flanges.
Description
It is desirable to provide a tray for packaging a plurality of
articles which have improved strength and greater article holding
properties while being maintained of simple construction. This
invention therefore resides in a tray for maintaining a plurality
of articles having a recessed portion at preselected locations
relative one to the other. The tray has flaps of a configuration
for wedging into recesses of associated articles.
Other objects, aspects and advantages of the invention will be
readily apparent from a reading of the following description, the
drawings, and the appended claims.
The drawings are diagrammatic views of the tray of this invention.
FIG. 1 shows a plane view of the tray, FIG. 2 shows a portion of
the tray and its relationship with an article, FIG. 3 is a cross
sectional view at a right angle to FIG. 2, and FIG. 4 is a
perspective view of a package utilizing the invention.
The tray is particularly adaptable for use in shrink wrap packaging
such as shown in U.S. Pat. No. 3,610,412. The tray of this
invention, however, has improved article holding properties. It
should be understood, however, that the tray can be used with other
packaging or any other function for which it is adapted without
departing from this invention. An example of such function would be
as a tray for holding articles which combination would be
maintained on a shelf.
Referring to FIG. 1, the tray 2 is formed of any suitable material,
preferably paperboard, for example, more preferably coated
paperboard which will resist moisture.
The tray has first and second ends 4, 6, first and second end
portions 8, 10, and first and second side edges 16, 18. Each tray
has at least one flap 20, 22, at each end portion 8, 10 of the tray
2. The flaps 20, 22 each have an edge 24, 26 hingedly connected to
said tray 2. Each of the flaps 20, 22 have a flap score line 28
extending thereacross generally parallel to the hinged edge 24, 26
of the flap 20, 22.
The width (W) of the flaps 20, 22 as measured along the respective
flap score line 28 is greater than the width of other portions of
the flap 20, 22. In order to provide additional strength and more
firmly hold assocciated articles, it is preferred that portions of
each flap adjacent the flap score line along the entire length of
said score line 28 is of a greater width than the other portions of
the flap. This portion (P) is on opposed sides of the flap score
line and is depicted as the portion between broken lines 30, 32 on
flap 20'. It is also preferred that the width (W) of flaps 20, 22
(shown on flap 22') as measured along the flap score line is
greater than the width of the recess of the associated articles to
be held thereby.
Flaps 20, 20', 22, 22', are preferably hingedly connected at a
location spaced from the associated ends 4, 6 of the tray 2 with
the flap 20, 20', 22, 22' extending from a hinged connection 24,
24', 26, 26' toward the opposed end of the tray 2. This
construction assists in preventing movement of the articles
outwardly relative to the center of the tray 2 and to some extent
forces the articles toward the center and against one another in
some constructions. First and second score lines 34, 36 can be
positioned which extend across respective first and second end
portions 8, 10 of the tray 2 each at a location between the hinged
connection 24, 24', 26, 26' of the respective flaps 20, 20', 22,
22' and the respective adjacent tray end 4, 6. In this
construction, folds can be made along the first and second score
lines 34, 36 to form first and second flanges 38, 40. After
positioning the flaps in the recesses of articles, the flanges 38,
40 can be brought down or up into contact with adjacent articles
for additionally supporting and/or protecting the articles.
These first and second score lines 34, 36 are preferably generally
parallel to the hinged connection or edge 24, 26 of the flaps 20,
22.
Third and fourth score lines 42, 44 can also be provided each
extending along a respective side 12, 14 and spaced a distance
annularly from the respective side edges 16, 18 to form third and
fourth flanges 46, 48 which can be folded to function as described
above with respect to the first and second flanges 38, 40.
It should also be understood that the tray 2 can be formed to have
only first and second flanges 38, 40, only third and fourth flanges
46, 48, first, second, third and fourth flanges, or any combination
of flanges, and further can be formed without flanges. The
configuration of the articles held by the tray and the degree of
desired sturdiness, once determined, will lead one skilled in the
art to what flange placement, if any, is desired. Where flanges are
formed on the tray 2, it may be desirable to have corner portions
removed in order to provide a neat uniform flanged tray as
shown.
The flaps can be formed by cutting the tray and providing a score
line 26, 28, for example, defining the hinged connection.
There can also be a plurality of flaps 20, 20', 22, 22', as shown,
one flap on each end portion, or the flaps can be at other
locations, which configurations and placements are dictated by the
type of articles being maintained by the tray.
FIG. 2 shows a portion of flap 20 positioned at its installed
position within the recess of an article 50. This section was taken
through the article 50 and through the flap 20 at the flap score
line 28 and is a view from the first end 4 of the tray 2. It can be
seen in FIG. 2 that the flap 20 of this configuration wedges into
the recessed area of the article thereby maintaining said article
against movement relative thereto. In this case, for example, the
article 50 is a round ice cream container, having a recessed bottom
52.
FIG. 3 shows a portion of flap 20 positioned within the recess of
an article 50 as viewed along a section through the middle of the
container 50 and at a right angle to the view of FIG. 2.
In one example of use of the tray, several ice cream containers are
arranged in rows to form the package, the tray is placed on the
bottoms of the containers and the flaps wedged into the recesses of
adjacent articles, the flanges are turned down into contact with
the articles, another layer of cartons is placed thereover, another
tray is similarly positioned with its flaps wedged into the bottoms
of the second layer of articles and the flanges turned down.
Heat-skrinkable film is then wrapped about the tray-held articles,
sealed and heat-shrunk to form a neat, compact package. Such a
package is illustrated in FIG. 4.
It will be noted from the foregoing discussion and the drawings
that the portion (P) of the flaps forms an angular beam section
which is of relatively great strength and is wedged into the
article recess which further strengthens the gripping forces of the
flap on the container.
Other modifications and alterations of this invention will become
apparent to those skilled in the art from the foregoing discussion
and accompanying drawing, and it should be understood that this
invention is not to be unduly limited thereto.
* * * * *