U.S. patent number 3,628,842 [Application Number 05/030,437] was granted by the patent office on 1971-12-21 for shipping and delivery shelved containers for food.
This patent grant is currently assigned to Union Camp Corporation. Invention is credited to Ernest C. Wright.
United States Patent |
3,628,842 |
Wright |
December 21, 1971 |
SHIPPING AND DELIVERY SHELVED CONTAINERS FOR FOOD
Abstract
A container is erected from a prescored blank to form a carton
having a top, sides, a bottom and closure panels for the front and
rear thereof. A removable separable shelving assembly is formed by
securing a shelf or shelves to side rails. The shelving assembly is
inserted as a unit into the erected carton whereby a shelved
container is formed. The top of the container is provided with
handle means, and the front and rear closure panels are provided
with locking tab means, whereby a closed, shelved container is
provided for shipping, storage and delivery services.
Inventors: |
Wright; Ernest C. (Princeton,
NJ) |
Assignee: |
Union Camp Corporation
(Township of Wayne, NJ)
|
Family
ID: |
21854206 |
Appl.
No.: |
05/030,437 |
Filed: |
April 21, 1970 |
Current U.S.
Class: |
312/259; 312/234;
312/293.2 |
Current CPC
Class: |
A47B
43/02 (20130101) |
Current International
Class: |
A47B
43/02 (20060101); A47B 43/00 (20060101); A47b
043/02 () |
Field of
Search: |
;211/49,55,135
;312/42,234.4,234.5,261,260,259,293 ;229/27,28,15 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: McCall; James T.
Claims
What is claimed is:
1. A shelved container comprising a container consisting of: a
carton-type enclosure having top, bottom, sidewalls and backwalls;
front closure means; and a removable shelving structure
therein;
said front closure means comprising: a closure panel which is
hinged to one sidewall; a second closure panel which is hinged to
the other sidewall opposite said first panel; and means to secure
said closure means in closed position consisting of a locking tab
on one of said closure panels and a slot in the other of said
closure panels to receive said locking tab when the closure panels
are in closed position;
said backwall comprising two back panels, each hinged to a
corresponding edge of the sidewalls, said back panels being folded
to form the backwall with means for locking the panels in folded
position;
said removable shelving structure comprising two sides rails and
shelving secured therebetween so that the shelving structure may be
inserted into and removed from the container as a unit;
the shelves of said shelving structure comprising an open-ended box
structure having sides secured to the side rails to form a unit
presenting two shelves, additional open-ended box structures being
spaced along the side rails to provide additional shelves when
needed.
2. A shelved container as claimed in claim l, wherein the second
panel has two spaced slots to cooperate with a tab on the first
panel, said tab having score lines to permit folding the tab into a
U-shape as it is serially inserted into the slots, the legs of the
U being positioned in the slots to form an interlocking joint
between the two panels.
3. A shelved container as claimed in claim l, wherein handle means
is secured to the top of said container to insure that the
container is carried in its proper loaded position.
Description
This invention relates to shipping and delivery containers equipped
with shelving.
In many delivery services for pies, cakes, prepared food trays, and
similar items, wherein the same must be individually supported on
shelves, metal containers having shelves are used. Such containers
are heavy, costly, and must be returned to the shipper when
empty.
An object of this invention is to provide a shelved container made
of paperboard, or like inexpensive material, which may be easily
erected from prepared flat blanks.
Another object is to provide a shelved container provided with
handle means for transporting and delivering prepared food trays
from kitchens to aircraft or to other desired places. The prepared
trays are individually supported on shelves, since they cannot be
stacked.
Another object is to provide a shelved container which is light in
weight, inexpensive, and may be considered to be disposable.
Further objects and advantages will be apparent from the following
description and accompanying drawings, wherein:
FIG. l is a plan view of the flat blank from which the carton is
erected;
FIG. 2 illustrates the side rails of the shelving assembly;
FIG. 3 is a plan view of the flat blank from which the shelving is
erected;
FIG. 4 is a perspective front view of the shelving assembly;
FIG. 5 is a perspective view of the front of the erected carton
with the front closure panels in open position;
FIG. 6 is a perspective view of the rear of the erected carton with
the rear closure panels in open position;
FIG. 7 is a perspective view of the rear of the container and shows
the shelving assembly housed within the carton;
FIG. 8 is a perspective view of the handle secured to the top of
the container;
FIG. 9 is a perspective view of the top rear flap;
FIG. l0 is similar to FIG. 5 but shows the front closure panels in
closed position;
FIG. ll is similar to FIG. 7, but shows the rear closure panels in
closed position;
FIG. l2 is similar to FIG. l0, but shows the front closure open and
exposes the front of the shelving assembly; and,
FIG. l3 is a fragmentary sectional view on line 13--l3 of FIG. l0,
showing the interlocking relation between the tab and its
cooperating slots.
Referring to FIG. l, blank A comprises a flat sheet of suitable
material, such as corrugated board of suitable strength. The flat
sheet is prescored to present a pattern of score and fold lines,
and is die-cut and punched to the configuration illustrated in FIG.
l. Transverse score lines l, 2 and 3 define bottom panel 5, side
panel 6, top panel 7 and side panel 8. Horizontal score lines 9 and
l0 define end flaps ll and l2 at opposite edges of bottom 5,
closure panels l4 and l5 at opposite edges of side 6, flaps l6 and
l7 at opposite edges of top 7, and closure panels l8 and l9 at
opposite edges of side 8.
Closure panel l4 is provided with a locking tab 2l which is
inserted into locking slot 22 of closure panel l8 when the blank is
erected to form a carton for the shelved container. Closure panel
l5 is provided with a partly punched out slot 23 having an
infolding flap 24. Closure panel l5 is further provided with a
locking flap 25 having several score lines. As will be described
herebelow, flap 25 cooperates with slots 26 and 27 formed in
closure panel l9 for interlocking the two closure panels in closed
position. A punched out portion 29 at the edge of closure l9 is
complementary to the end configuration of slot 23 when the carton
is erected and the closure panels are in closed position, as
illustrated in FIG. l0.
The shelving assembly comprises two sides 30 and 3l, illustrated in
FIG. 2. Each side is a rectangular sheet of suitable material.
Preferably, the material is paperboard of suitable rigidity and
strength for the desired load.
The several shelves are formed of flat blanks, each properly scored
and die cut to the configuration illustrated in FIG. 3. Each blank
B has score lines 33, 34, 35 and 36 which divide the blank into
shelf portions 37 and 38, a side 39 and two end flaps 40 and 4l,
which flaps, when folded at right angles to the shelf portions 37
and 38, provide a side means opposite to side 39. Blank B is
provided with front cutout portions 42 along one edge thereof and
rear cutout portions 43 along the opposite edge thereof. Cutout 42
allows access to the contents and cutout 43 provides space for dry
ice or other coolant.
A blank B is folded along its fold lines to form or erect an
open-ended boxlike structure, illustrated in FIG. 4. Thus, the top
of the box forms shelf 37 and the bottom of the box forms shelf 38.
The desired number of erected boxes are secured to sides 30 and 3l
at spaced distances, as illustrated in FIG. 4, to present the
desired number of shelves 37 and 38. As shown in the figure, the
erected boxes are spaced from each other so that a shelf 37 is
below a shelf 38 to provide a space for the articles supported by a
shelf 37. The erected boxes may be secured to sides 30 and 3l by
any well-known means, such as by utilizing a suitable adhesive or
by stapling.
The assembled shelving structure of FIG. 4 may be collapsed or
compacted for shipping or storage. In view of fold lines 33 to 36,
inward pressure on sides 30 and 3l will cause the individual shelf
structures 37 to 4l to collapse, the several parts hinging along
the fold lines. Thus, a compact package is formed with sides 30 and
3l close together and the folded shelves therebetween.
The container is erected from blank A by folding sides 6 and 8
along fold lines 2 and 3 and folding bottom panel 5 along fold line
l to form a rectangular box. Bottom 5 is connected to the lower
edge of side 8 by any desired means. Preferably, the connecting
means comprises an adhesive tape means located on the outside of
the box formation and affixed to the adjacent edges of bottom 5 and
side 8. FIGS. 5 and 6 illustrate the erected box formation
comprising top 7, sides 6 and 8, bottom 5 and closure panels l4 and
l8 and l5 and l9. For explanatory purposes only, the closure means
comprising panels l4 and l8 may be considered the rear closure, and
the closure means comprising panels l5 and l9 may be considered the
front closure of the container. The front closure is the one which
is opened to gain access to the interior of the container and its
contents supported by the shelves.
The erected box is closed at its rear by folding top tab l6 and
bottom tab ll inwardly, and thereafter folding in panels l8 and l4,
with tab 2l being inserted in slot 22 to maintain the closure
panels in their closed position, as illustrated in FIG. ll. Top
flap l6 is provided with fold lines 50 and 5l, whereby fold line 50
can act as a hinge for raising flap l6 from a closed position to an
open position, whereby the interior of the container may be
inspected without opening panels l4 and l8 and will allow for the
insertion of dry ice or other coolant. Flap l6 is provided with a
hinged tab 32 which provides a vent opening in and a finger grip
for flap l6.
After the rear of the box is closed, as illustrated in FIG. ll, the
shelving illustrated in FIG. 4 is inserted into the front of the
box, as illustrated in FIG. l2. The contents to be transported and
delivered in the unit, such as trays with prepared meals, pies,
display merchandise, or similar articles which require individual
shelf support, are placed on the shelves 37 and 38.
The box is then closed at its front by folding end flaps l2 and l7
inwardly and thereafter folding panel l5 to close the front opening
and folding panel l9 thereon. The folded panels l5 and l9 are
locked together by inserting tab 25 into slots 27 and 26. As
illustrated in FIGS. l0 and l3, tab 25 is inserted into slot 27 as
panel l9 is folded over panel l5. Tab 25 is scored along lines 46,
47 and 48, as illustrated in FIGS. l and l3. Thus, portions of tab
25 can be folded along fold lines 46, 47 and 48 and the end of the
tab inserted into slot 26 of panel l9. Thus, tab 25 is folded to
assume a U-shape, with the legs of the U passing through slots 26
and 27, whereby a strong interlocking joint between panels l5 and
l9 is formed. The joint is easily unlocked by pulling the end of
tab 25 out of slot 26, straightening out the tab to generally align
it with slot 27, and then pulling panel l9 to disengage slot 27
from the tab. It will be understood that a single panel may be used
in place of the two closure panels in either the front or rear of
the carton and that other locking means may be employed for either
the double- or single-closure panels.
The container is further provided with handle means for carrying it
when loaded. As illustrated in FIGS. l and 8, top 7 is provided
with slots 55. A handle 56, made of plastic or similar material, is
provided with end lugs 57 connected by neck portions 58 to the body
of the handle. There is sufficient flexibility and resiliency in
the handle structure 56--58 to permit insertion of lugs 57 in slots
55, with the final positioning of the lugs into the locking
position illustrated in FIG. 8.
A combined vent and hand hold comprising slot 23 and hinged tab 24
is provided in closure panel l5. Slot 23 provides an opening for
insertion of fingers to facilitate the manipulation of the
container in assembly, storage, stacking, or removing the container
from the galley.
Although the invention has been disclosed in a preferred embodiment
for purpose of illustration, it will be evident that various
changes and modifications may be made therein without departing
from the scope and spirit of the invention.
* * * * *