U.S. patent number 3,596,822 [Application Number 04/826,611] was granted by the patent office on 1971-08-03 for package structure.
This patent grant is currently assigned to Holley Plastics Company. Invention is credited to Danforth Holley.
United States Patent |
3,596,822 |
Holley |
August 3, 1971 |
PACKAGE STRUCTURE
Abstract
A folding package construction including a pair of body portions
each having a recess therein, and a hinge portion having a
triangular cross section connected to adjacent edges of the body
portions. The body portions have inner and outer sides and inclined
edges which provide package rigidity and permit interlocked
stacking of a plurality of packages. Also, the inclined edges at
the triangular hinge portion allow the body portions to pivot or
fold toward each other to close the package construction. A nipple
and a recess are provided on the inner sides of each body portion
cooperating with the nipple and recess in the other body portion to
provide a snap lock on closure of the package. The snap lock
prevents the body portions from opening.
Inventors: |
Holley; Danforth (Grosse Pointe
Shores, MI) |
Assignee: |
Holley Plastics Company
(Warren, MI)
|
Family
ID: |
25247064 |
Appl.
No.: |
04/826,611 |
Filed: |
May 21, 1969 |
Current U.S.
Class: |
220/4.24;
206/303; 220/835; D9/426; 402/80P |
Current CPC
Class: |
B65D
43/162 (20130101); B65D 2251/1033 (20130101) |
Current International
Class: |
B65D
43/16 (20060101); B65d 001/36 () |
Field of
Search: |
;220/31SR
;229/44R,44CB,15 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Norton; Donald F.
Claims
What I claim as my invention is:
1. A folding one-piece package structure comprising a pair of
rectangular body portions each having four edges and an inside side
and an outside side, each of the edges of each body portion
converging from the outside side toward the inside side, recesses
in each body portion extending from the inside side toward the
outside side for receiving articles to be packaged, a hinge portion
extending longitudinally of adjacent one edges of the body portions
and connected thereto by an integral flexible hinge, said hinge
portion having a triangular cross section, and triangular end parts
for imparting rigidity to the hinge portion inclined toward each
other and from the outside side toward the inside side of the body
portions at substantially the same angle as the two edges of the
body portions perpendicular to the one edges thereof and adjacent
thereto are and inclined toward the inside side of the body
portions, said inclined one edge of each of the body portions and
said hinge structure effecting a 90.degree. corner at each one edge
of the body portions with the body portions positioned over each
other by folding the one-piece package structure at the two
flexible hinges and placing the inside sides of the body portions
in surface to surface contact with each other.
2. Structure as set forth in claim 1 and further including means
integral with the package structure for securing the body portions
of the package structure together with the inside sides of the body
portions in surface-to-surface contact.
3. Structure as set forth in claim 2 wherein the recesses in each
of the body portions include a first annular recess extending from
the inside side toward the outside side of the body portions and a
second circular recess concentric with the annular recess and of
smaller diameter than the inner diameter of the annular recess
extending from the inside side of the body portions to the outside
side of the body portions and generally triangular recesses
extending from the inside sides of the body portions toward the
outside sides thereof at each of the corners of the body portions
and extending into the annular recesses whereby on placing the
inside sides of the pair of body portions in surface-to-surface
contact the annular recess and triangular recesses form a first
compartment for a first article and the circular recess forms a
second compartment for another article.
4. Structure as set forth in claim 2 wherein the means for securing
the body portions of the package structure together with the inside
sides of the body portions in surface-to-surface contact comprises
a recess adjacent one of said two edges and a nipple adjacent the
other of said two edges on one body portion and a recess adjacent
the other of the two edges on the other of said body portions and a
nipple adjacent the one of said two edges on the other of said body
portions with the nipples and recesses in the two body portions
being aligned so that the recesses receive the nipples with the
inside sides of the body portions in surface-to-surface engagement,
said nipples being of slightly larger diameter than said recesses
to provide a snap fit of the nipples within the recesses whereby
the body portions are retained in a position with the inside sides
in surface-to-surface contact.
5. A folding one-piece package structure comprising a pair of
rectangular body portions each having four edges and an inside side
and an outside side, each of the edges of each body portion
converging from the outside side toward the inside side, recesses
in each body portion extending from the inside side toward the
outside side for receiving articles to be packaged including a
first annular recess extending from the inside side toward the
outside side of the body portions and a second circular recess
concentric with the annular recess and of smaller diameter than the
inner diameter of the annular recess extending from the inside side
of the body portions to the outside side of the body portions and
generally triangular recesses extending from the inside sides of
the body portions toward the outside sides thereof at each of the
corners of the body portions and extending into the annular
recesses whereby on placing the inside sides of the pair of body
portions in a surface-to-surface contact the annular recess and
triangular recesses form a first compartment for a first article
and the circular recess forms a second compartment for another
article, a hinge portion extending longitudinally of adjacent one
edges of the body portions and connected thereto by an integral
flexible hinge, said hinge portion having a triangular cross
section, and triangular end parts for imparting rigidity to the
hinge portion inclined toward each other and from the outside side
toward the inside side of the body portions at substantially the
same angle as the two edges of the body portions perpendicular to
the one edges thereof and adjacent thereto are and inclined toward
the inside side of the body portions, said inclined one edge of
each of the body portions and said hinge structure effecting a
90.degree. corner at each one edge of the body portions with the
body portions positioned over each other by folding the one-piece
package structure at the two flexible hinges and placing the inside
sides of the body portions in surface-to-surface contact with each
other, and means integral with the package structure for securing
the body portions of the package structure together with the inside
sides of the body portions in surface-to-surface contact including
a recess adjacent one of said two edges and a nipple adjacent the
other of said two edges on one body portion and a recess adjacent
the other of the two edges on the other of said body portions and a
nipple adjacent the one of said two edges on the other of said body
portions with the nipples and recesses in the two body portions
being aligned so that the recesses receive the nipples with the
inside sides of the body portions in surface-to-surface engagement,
said nipples being of slightly larger diameter than said recesses
to provide a snap fit of the nipples within the recesses whereby
the body portions are retained in a position with the inside sides
in surface to surface contact.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to package structure and refers more
specifically to folding package structure which may be constructed
of plastic and includes integral nipple and recess mechanical means
for securing the package structure closed, and a triangular,
particularly rigid hinge portion located between a pair of body
portions, each of which has inclined edges to add rigidity to the
package structure and facilitate stacking of a plurality of
separate package structures.
2. Description of the Prior Art
Prior package structures have included a plurality of different
means for closing the structures to insure articles packaged
therein remain in the packaged structure until it is desired to
remove them therefrom. In the case of prior paper or cardboard
packaged slots, tabs, adhesives, tape and the like have been used
to close the packages. Plastic packages have often been heat
sealed. Thus, in the prior package structure closing of the
packages has usually required separate closing elements, such as
adhesive, tape or the like or separate production operations, such
as slotting and heat sealing which have made prior package
structures more expensive than necessary.
In addition, hinge structure of previous folding packages has
generally included a single thickness of material across which a
fold line is provided which hinge structure is not as strong or
rigid as necessary for many applications. Further, with many prior
package structures, interlocked stacking of the packages has not
been possible.
SUMMARY OF THE INVENTION
In accordance with the present invention there is provided a
folding package construction comprising a pair of body portions
each having a recess therein for receiving an article. The package
structure further includes an extremely rigid triangular hinge
portion which is connected to adjacent edges of the body portions
to allow the body portions to pivot or fold toward each other to
close the package structure. The body portions have inclined edges
which provide package rigidity and aid in stacking a plurality of
packages. The package structure also includes a nipple and recess
on the inner side of each body member cooperable to provide a snap
lock on closing of the package.
BRIEF DESCRIPTION OF THE DRAWING
FIG. 1 is a perspective view of a folding package structure
constructed in accordance with the invention.
FIG. 2 is a side elevation view of the package structure
illustrated in FIG. 1 in the closed position and including one of
the body portions in phantom line opened at a 90.degree. angle
relative to the other body portion.
FIG. 3 is a section view taken substantially on line 3-3 in FIG.
2.
FIG. 4 is a partial section view of the hinge portion of the
package structure of FIG. 1 illustrating one of the body portions
slightly open.
FIG. 5 is an enlarged section view of one of the locking nipples
and recesses of the package structure of FIGS. 1 through 4 taken
substantially on line 3-3 in FIG. 2.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The folding one-piece package structure 10 illustrated best in FIG.
1 includes body portions 12 and 14 having edges 16 and 18 and
including recesses 21 and 22 for receiving an article, such as a
gear or the like therein. A hinge portion 20 is connected between
adjacent edges 16 and 18 of the body portions 12 and 14. The body
portions 12 and 14 each include locking means such as nipple 26 and
recess 28 cooperating with each other with the nipple 26 received
in the recess 28 to provide a snap lock upon closure of the package
structure 10.
The edges 16 and 18 of the body portions 12 and 14 include the
inner wall 30, an upper surface 32 and outer wall 34. Abutments 37
extend inwardly of the inner walls 30 for engaging the article
placed in the packages. The outer walls 34 are inclined outwardly
from the surface 32 to increase the rigidity of the package
structure 10 and permit interlocking of a stacked plurality of
package structures.
The hinge portion 20 is located between adjacent outer sidewalls 34
of the body portions 12 and 14, as shown best in FIGS. 1, 2 and 4.
The hinge portion 20 of the package structure 10 has a triangular
cross section including inclined sides 36 and 38 and also has end
walls 40 which are also inclined to increase the rigidity of the
hinge portion 20. The hinge 20 allows the body portions 12 and 14
to pivot or fold toward each other to close the package structure
10. Furthermore, the outer sidewalls 34 at the hinge portion 20
have a sufficient incline to allow the sidewalls 34, 36 and 38 to
abut one another when the plastic package structure 10 is
closed.
The recesses 21 and 22 in the body portions 12 and 14 include a
centrally located hub 42 surrounding a recess 44 having a bottom 46
and a vertical wall 48. The flat annular surface 50 and sidewall 52
cooperate with wall 48 to form hub 42. The recess 44 of hub 42 is
equal to the depth of body portions 12 and 14 and provides support
for the package structure 10 when stacked in a horizontal position.
The flat annular surfaces 50 of the hubs 42 abut one another when
the body portions are folded to close the package structure 10.
Therefore, the centrally located hub 42 provides support centrally
of the package structure 10. Furthermore, the recess 44 of hub 42
provides additional space for packaging bolts, screws or the like
useful with a packaged article. Also, body portions 12 and 14
include corner recesses 54 for additional packaging areas if
required.
The nipple 26 and recess 28 are also provided on the body portions
12 and 14 cooperating with one another when the body portions are
closed to lock the package structure 10 closed. As shown best in
FIG. 5 recess 28 has an initial inner diameter slightly smaller
than the outer circumference of nipple 26. Therefore, when the
nipple is received within the recess 28, the diameter of the recess
28 has a tendency to fit snugly about the nipple and to indent the
nipple adjacent the flat surface 32. Therefore, when the nipple 26
is received within the recess 28 a snap lock is provided to secure
the package structure in a closed position.
The package structure 10 may be made out of plastic, such as
cellulose acetate, cellulose acetate butyrate or polyethylene
compounds. The material used should be capable of being vacuum
formed.
A heat-sealing process is not necessary to close package structure
10 because of the snap lock means. Therefore, when the package is
finished, an article is placed within the recess and the body
members 12 and 14 are pivoted closed and the nipples are forced
into the recesses to secure the article within the package
structure 10.
* * * * *