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Dec. 17, 1946.
Filed Oct. 1a, 1944
2 Sheets-Sheet 1
Dec. '17, 1946.,
Filed Oct. 16, 1944
2 Sheets-Sheet 2
I Patented Dec. 17, 1945'.
Smith A. Blackman, Kirkwood, Mo., assignor to
Gaylord Container Corporation, St. Louis, Mo.,
a corporation of Maryland
Application October 16, 1944, Serial No. 558,817
1 Claim.
(Cl. 229—45)
This invention‘ relates to containers, particu
means of score lines 9_ and folded or rebent down
wardly on the outer sides of said flaps to con
larly multi-sided shipping cartons. The princi- .
‘ stitute locking ?aps. ~Similar extensions or con
pal object of the invention is to provide a car
tinuations I0 .at the upper or outer endsiof the
ton of the above type witha slip cover which.
side wall ?ap 3 are marked off by means of
becomes automatically locked permanently to the
score or crease lines and folded or rebentdown
body when telescoped over the open end thereof.
wardly on the outer sides of these ?aps to con
Other objects are to simplify and cheapen the
stitute locking ?aps. As shown in the drawings,
carton construction and to increase the strength
the locking ?aps or ?anges H] of the side wall
' and rigidity thereof. The invention consistsin
the cover locking arrangement and in the parts 10 flaps 3 are secured ?atwiseto the outside faces
thereof ‘by the staples l which secure the side
and combinations and arrangements of parts
wall flaps 2 and 3 together in side wall forming 1
hereinafter described and claimed.
relation, while the locking ?aps or ?anges 8 of
In the accompanying drawings, which form ‘
the side wall flaps 2 are left free and tend to
part of this speci?cation and wherein like sym
bols refer to like parts wherever they occur,
Fig. 1 is a side elevational view of a shipping
carton embodying my invention,
15 spring outwardly away therefrom.
By this ar
rangement, the ?xed locking ?aps Ill alternate
with the loose locking ?aps 8 around the open
end of the body A.
Fig. 2 is a top plan view of said carton, a por
The slip cover B for the top of the body com
tion of the slip cover being shown broken away,
Fig. 3 is a side elevational view of the slip 20 prises a top portion or panel of polygonal shape
with side marginal flaps l l alternating with side
marginal ?aps l2 that are bent downwardly
Fig. 4 is a side elevational‘view of the body,
along score lines [3 and are permanently secured
Fig. 5 is a side elevational view showing the
together side edge to side edge in angularly dis-=
body and cover before assembly,
Figs. 6 and 7 are enlarged fragmentary verti 26 posed relation to form the multi-sided or paneled
rim portion of said cover. The securing means
cal sectional views on the lines 6-6 and‘ 1-1,
for the rim flaps II and I2 of the cover A pref
respectively, in Fig. 5,
Figs. 8 and 9 are enlarged fragmentary vertical I
erably comprises wing'tabs It on both side edges
of the flaps II that are bent along score lines
30 l5 and secured by staples It or other suitable
spectively, in Fig. 1,
fasteners ?atwise to the outer side faces of the
Fig. 10 is an enlarged fragmentary vertical
flaps l2. The flaps II have continuations I‘! at
sectional view on the line Iii-I0 in Fig. 2,
their outer or lower ends that are marked off
Fig. 11 is a plan view of the cover blank; and
by means of scores or creases I8 and folded or
Fig. 12 is a plan view of the body blank.
My carton comprises an open-top multl-sided 35 rebent upwardly on the‘ inner sides of said flaps
to constitute locking ?aps. The flaps I2 have
body A and a multi-sided slip cover or closure
similar extensions l9 that are marked off by
B therefor. The body A comprises a bottom I
scores or creases 20 and folded or rebent upwardly
of polygonal shape with side marginal ?aps 2
on the inner sides of said ?aps to form ‘locking
alternating with the side marginal ?aps 3. The
side marginal flaps 2 and 3 are bent upwardly 40 ?aps. The locking ?aps l9 are secured flatwise
along score lines 4 and permanently secured~ to the rim ?aps l2 by the staples it, while the
locking ?aps I'l'of the rim forming flaps I! are
together side edge to side edge in angularly dis
left free to spring outwardly away therefrom,
posed relation to form the multi-sided or paneled
the ?xed locking flaps alternating with the loose
side wall of said body. The securing means for
the side wall ?aps 2 and 3 of the body A pref 45 locking ?aps around the rim of the slip cover.
a In applying the slip cover B to the body A, the
erably comprises outstanding wing tabs 5 that
cover is preferably positioned with its loose look
extend on opposite sides of the flaps 2 and are
ing ?aps ll opposite the'?xed locking flaps ‘III
bent along score line 6 and permanently secured
sectional views on the lines 8-8 and 9-9, re-
of the body and then telescoped over the open "
by staples 'l or other suitable fasteners ?atwise
to the inner faces of the flaps 3. The two wing 50 end of the body. During this operation, the loose
outstanding locking ?aps ll of the cover B are
tabs 5 secured to each flap 2 are preferably dis
forced against the rim portion thereof by the
posed in endwise abutting relation midway of the
sides thereof. The side wall ?aps 2 of the body ‘ ?xed locking ?aps ll) of the body A and then
snap beneath the lower edges of said ?xed body
A have extensions ‘or continuations 3 at their
upper or outer ends that are marked of! by 55 ?aps, while the ?xed locking ?aps I! of thecover
g 3
ride over the loose body ?aps 8 which yield in
What I claim is:
wardly and then spring outwardly across the
A carton comprising a body having a bottom
upper ends of the ?xed cover ?aps It. By this . ' 'panel with a plurality of upstanding side mar
arrangement, the substantially continuous inter
ginal ?aps forming a multi-sided wall, alternate ,
nal shoulder formed in the rim of the slip cover
B by the locking ?aps l1 and I9 abuts against
the under side of the substantially continuous
external shoulder formed on the body A by thev
?aps having outstanding side tabs that overlap
' and are secured ?atwise to the inside faces of
the ?aps therebetween, all of said ?aps having
downturned exterior locking ?aps at the upper
locking ?aps 8 and I0, thus permanently locking
ends thereof, the locking ?aps of the wall flaps
said slip cover to said body.
’ 10 between said alternate wall ?aps being rigidly
The hereinbefore described construction has
?xed ?atwise to‘ the outside faces thereof and'
several important advantages. It is simple and
the locking ?aps of said alternate wall ?aps being
‘economical and permits the slip cover of the car
left free, and a slip cover for said body compris- _
. ton to be quickly and easily secured permanently
the cover, are rigidly connected together to main
ing a top panel having a plurality of depending;
side'marginal ?aps forming a multi-sided rim for
said cover, alternate rim forming ?aps having
outstanding side tabs that overlap and are se
cured ?atwise to the outside faces of the rim ?aps
tain the polygonal shape thereof; and the joints
therebetween, all of said rim forming ?aps hav
to the body thereof merely by telescoping said
The side
wall ?aps of, the body, as well as the rim ?aps of
' cover over the open end of said body.
between adjacent side walls flaps of the body and 20 ing upturned internal locking ?aps at the lower
between adjacent rim ?aps of the cover are cov
ends thereof, the locking ?aps of the rim ?aps
ered by the wing tabs of alternate flaps. The
between said alternate rim ?aps being rigidly
?xed locking v?aps of the body and cover con
?xed ?atwise to the inside faces thereof and the
tribute greatly to the strength and rigidity there
locking ?aps of said alternate rim ?aps being left
of; and the free locking ?aps are adapted to'
free, said cover being telescoped over said body
spring into locking position despite side play oc
with the upper edges of its free locking ?aps dis
casioned by a loosely ?tting cover.
posed in abutting relation to the lower edges of"
e Obviously, the hereinbei‘ore described carton
the ?xed locking ?aps of said body and with the
construction admits of considerable modi?cation
upper edges of its ?xed locking ?aps disposed in '
without departing from the invention. ' Therefore, 30 abutting relation to the lower edges of the free
I do not wish to be limited to the precise arrange
‘locking ?aps of‘ said body.
ment shown and described.
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