US2675163A - Covered carton or container - Google Patents

Description

April 13, 1954 K. T. BUTTERY COVERED CARTON OR CONTAINER 2 Sheets-Sheet 1 Filed Jan. 2'7, 1950 INVENTOR. [flV/ /Zflf BY 6% (2. 8

April 13, 1954 K. T. BUTTERY 2,675,163

COVERED CARTON OR CONTAINER Filed Jan. 27, 1950 2 Sheets-Sheet 2 IN V EN TOR.

Patented Apr. 13, 1954 UNITED STATES PATENT OFFICE to Sutherland Paper Company,

Kalamazoo,

Mich., a corporation of Michigan Application January 27, 1950, Serial No. 140,937

10 Claims. 1

This invention relates to improvements in covered carton or container.

The main objects of this invention. are:

First, to provide a covered carton or container formed of an integral blank which may be quickly set up to receive its contents and quickly closed, and at the. same time when closed is very secure and rigid even though formed of relatively light container board or stock.

Second", to provide a structure having these advantages which, when closed, effectively protects the contents.

Objects relating: to details and economies of the invention will appear from the description to follow. The invention is" defined and pointed out in the claims.

A preferred embodiment of the invention is illustrated. in the accompanying drawing, in which:

Fig. I is a perspective view of a carton or container embodying my invention in fully erected position except for the closing of the cover.

Fig. 2 is a fragmentary end elevational view partially erected and illustrating the relation of certain parts.

Fig. 3 is a fragmentary end perspective view similar to that of Fig. 2 and illustrating the parts in partially erected position.

Fig. 4. is a fragmentary sectional view on a line corresponding to line 4-4 of Fig. 1.

Fig. 5 is a plan view of the blank.

I have illustrated my invention as embodied in a somewhat elongated container for conveniencev in description. in the specification and claims I use the terms front, rear and end walls, but it will be understood that my invention is equally well adapted to square containers and containers of other proportions and the wall designations are arbitrary to that extent.

The embodiment of my invention illustrated is formed of a single blank shown in Fig. 5 and comprises abottom I, front wall 2, and rear wall 3, these walls being hingedly secured tothe bottom by the scores 4 and 5. The endwalls 6 are hingedly connected to the bottom by the scores 1., l. The cover 8 is hingedly connected to the upper edge of the rear wall 3 by the score ii. The cover has: a closure flap H) on its swinging edge hingedly connected thereto by the score H. The front and rear walls have corner flaps i2 hingedly connected thereto by the scores [3.

The end walls 6 are provided with diagonally d'isposed'slits l4 opening at their end edges and extending from their hinging scores 1. The end walls are provided with cover supporting flaps l5 hingedly connected thereto at It. The outer slits I! in the end walls have angularly disposed end portions [8 which are generally lJ-shaped to provide defiectable tongue portions it. These slits i? extend across the hinging scores :6.

The corner flaps l2 have dovetailed recesses 20 in their side edges providing upwardly projecting tongues 2! and downwardly projecting tongues 22 and tab-like. portions 231 above the recesses. The outer lower corners or the corner naps in the embodiment illustrated are beveled at 24 to facilitate their engagement with the end walls. The slits M provide the end walls with deflectable portions 25, these slits being arranged substantially as disclosed in my Patent 2,488,704, issued November 22, 1949.

In erecting the container the end walls are swung upwardly and the corner flaps angularly disposed relative to the side walls as shown in Fig. 3. The bottom portions of the corner flaps are inserted through the slits Hi, this being easily accomplished by deflecting the portions 25 inwardly. The tab portions are inserted through the outer pairs of slits H as is indicated in Fig. 3, the tongue-like portion l9 being easily defiected to permit this. With the walls completely erected the tongues 21 engage the upper edges of the slits 14 while the tongues 22 engage the lower edges of the slits H. The bottom edges '26 of the corner flaps are in supported engagement with the bottom and the upper edges 21 of the corner flaps. are flush with the score lines It so that when the cover supporting fiaps iii are folded inwardly as shown in Figs. 1 and 4 the corner flaps are held between the bottom and the cover supporting flaps. When the cover is open the corner flaps become disengaged or tilt outwardly, and manipulation is required to disengage the interlocking parts. However, it is ordinarily contemplated that the containers will not be knocked-down for reuse although they may be opened and closed several times.

To retain the cover in closed position, its closure iiap H! is tucked between the front edges of the cover flaps and the front wall as. is shown in Fig. 4. The front wall has cuts and slits 39 therein providing a dovetailed tongue 28 engageable through the elongated n-shaped slit 29 in the cover flap. This slit faces the edge of the cover flap and the end edges of the tongue engage with angularly disposed portions of the slit 28.

.With the parts'thus formed and arranged the container may be easily and quickly erected and when erected is very secure.

I have illustrated and described my invention in a highly practical embodiment thereof. I have not attempted to illustrate other embodiments or adaptations as it is believed that this disclosure will enable those skilled in the art to embody or adapt 'my invention as may be desired.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A container comprising a bottom and front, rear and end walls hingedly connected thereto, a cover hingedly connected to the top edge of the rear wall and having a closure flap on its swinging edge, the front and rear walls having corner flaps on their end edges,'the lower edges of the corner flaps being supportingly engaged on said bottom, the end walls having inwardly foldable cover supporting flaps on their upper edges, the end walls havingin'ner pair of slits openingat their end edges and" extending diagonally inward from the hinge connections of the end walls to the bottom "to permit"supportin'g engagement of the lower edges of the corner flaps with the bottom, said end walls'ha'ving outer slits angled at their ends and'extending across the connections for the cover supporting flaps to the end walls, said corner flaps having dove 'tail shaped recesses in their side edges providing upwardly projecting tongues "and downwardly projecting tongues, the upwardly projecting tongues being engageable with the upper edges of the inner slits of the end walls when the lower portions of the corner flaps are disposed through said slits in supported engagement with the bottom, portions of the corner flaps above their said edge recesses being eng'ageable in the outer: slits of the end walls with the downwardly projecting tongues in looking engagement ,with the end walls at the bottom edges of said outer slits, said front and rear wall corner flaps when inserted into said inner and outer slits of the end walls being movable in' 'arcs of circles the'centers of which coincide with the hinged connections of the front and rear walls to the bottom, said endwall cover supporting flaps being foldable over and engaging the upper edges of said corner fiapswhen the corner flaps are in such end wall engaging'position, the cover being closable'over the folded cover supporting flaps and-the closure flap being insertable between the front wall and the front edges of the cover supporting flaps, and means for detachably connecting the coverclosure flap to the front wall. j

2. A'conta'iner comprising a bottom-and front, rear and end walls'hingedly connected thereto, a cover hingedly connected to the top edge of the rear wall, the front and rear walls having corner flaps on their end edges, the lower edges of the corner flaps being supportingly engaged on said bottom, the end walls having inwardly, foldable cover supporting flaps on their upper edges, the end walls having inner pairs of slits opening at their end edges and extending diagonally inward from the hinge connections of the end walls to the bottom to permit supporting engagement of the lower edges of the corner flaps with the bottom, said end walls having outer slits angled at their ends and extending across the connections for the cover supporting flaps to the end walls, said corner flaps having dove tail shapedrecesses in their side edges providing upwardly projecting tongues anddownwardly projecting tongues, the

upwardly projecting tongues being engageable with the upper edges of the inner slits of the end walls when the lower portions of the corner flaps are disposed through said slits in supported engagement with the bottom, portions of the cor ner flaps above their said edge recesses being engageable in the outer slits of the end walls with the downwardly projecting tongues in locking engagement with the end walls at the bottom edges of said outer slits, said front and rear wall corner flaps when inserted into said inner and outer slits of the end walls being movable in arcs of circles the centers of which coincide with the hinged connection of the front and rear walls totth'e bottom, said end wall cover supporting flaps being foldable over and engaging the upper edges of said corner fiaps when the corner flaps are in such end wall engaging position, and the cover being closable over the folded cover supporting flaps.

3. A container comprising a bottom and front, rear and end walls hinge'dly connected thereto, a cover hingedly connected to the top edge of the rear wall and having'a closure flap on its swinging edge, the front and rear walls having corner flaps on their end edges, the end walls having inwardly foldable cover "supporting flaps on their upper edges; the end walls having'i'nner pairs of slits opening at their end edges and outer slits extending across the connections for the cover supporting flaps to the end walls; said corner 'flaps having recesses in'their side edges providing upwardly projecting tongues and down wardly projecting tongues, the upwardly projecting' tongues being engageablewith'the upper edges of the inner slits of the 'end walls when the lower portions of the corner flaps disposed through said slits, portionsof the corner flaps above their said edge recesses b'eing engageable in the outer slits of the end walls with the down wardly projecting tongue'sin engagement with the end walls, said front and rear wall corner flaps when inserted into said innerand outer slits of the end walls being movable in arcs of circles the'centers of which coincidewith the hinged connections of the front and rear-walls to the bottom, said end wall cover supporting flaps being foldable over and engaging the upper edges of said corner flaps when the corner flaps are in such end wall engaging position, the cover beingclosable over'the folded cover supporting flaps and being insertable'between the front wall and the front edges of the cover supporting'fla'ps, the cover closure flap and front'wall having (beengagingretaining elements. 1

l. A' container comprising a bottom and front, rear and end walls h'ingedly connected theretda cover hingedly connected to the top' edge of the rear wall, the front and rear walls'having corner flaps on their end edges,'the end walls having inwardly foldablecover supporting flaps on their upper edges, the end walls having innerpairs of slits opening at their end edges and outer slits extending across the connections for the cover supporting flaps to the end walls, said corner flaps having recesses in their side edges providing upwardly projecting tongues and downwardly projecting tongues, the upwardly projecting tongues being engageable with the upper edges of the inner slits of the end walls when the lower portions of the corner flaps disposed through said slits, portions of the corner flaps above their said edge recesse being engageable in the outer slits of the end walls with the downwardly projecting tonguesin engagement with the end,walls,;s aid front and rear. 'wall corner flaps when inserted gamma into said inner and outer slits of the; end walls being movable in arcs of circles the: centers of which coincide with the hinged: connections of the front and rear walls to the bottom, said end Wall cover supporting flaps being foldable over and engaging the upper edges of said corner flaps when the corner flaps are in such end wall engaging position, the cover being closable over the folded cover: supporting flaps.

5. A container comprising a bottom and front, rear and end walls hingedly connected thereto, and a cover hingedly connected to the top edge of the rear wall and having closure flap on its swinging edge, the front and rear walls haying corner flaps on their end edges, the end walls having pairs of inner slits opening at their-end edges and pairs of outer slits extending across the joints for the cover supporting flaps to the end walls, said corner flaps having recesses in their side edges providing upwardly and downwardly'projecting tongues, the upwardly projecting tongues being. engageable with the upper edges of the inner slits of the end walls, the portions of the corner flap above the recesses being disposed through said outer slits of said end walls with the downwardly projecting tongues lockingly engaged over edges of the outer slits, said front and rear wall corner flaps when inserted into said inner and outer slits of the end walls being movable in arcs of circle the centers of which coincide with the hinged connections of the front and rear walls to the bottom, said cover supporting flaps being foldable over the upper edges of the corner flaps in retaining engagement there with, the cover being closable over said supporting flaps, the cover closure flap being insertable between the front wall and the front edges of the cover supporting flaps, said cover closure flap and front wall having coacting retaining interlocking retaining engagement.

6. A container comprising a bottom and front, rear and end walls hingedly connected thereto, and a cover hingedly connected to the top edge of the rear wall, the front and rear Walls having corner flaps on their end edges, the end walls having pairs of inner slits opening at their end edges and pairs of outer slits extending across the joints for the cover supporting flaps to the end walls, said corner flaps having recesses in their side edges providing upwardly and downwardly projecting tongues, the upwardly project lng tongues being engageable with the upper edges of the inner slits of the end walls, the portions of the corner flaps above the recesses being disposed through said outer slits of said end walls with the downwardly projecting tongues lockingly engaged over edges of the outer slits, said front and rear wall corner flaps when inserted into said inner and outer slits of the end walls being movable in arcs of circles the centers of which coincide with the hinged connections of the front and rear walls to the bottom, said cover supporting flaps being foldable over the upper edges of the corner flaps in retaining engagement therewith, the cover being closable over said supporting flaps.

7. A container comprising a bottom and end, front and rear walls hingedly connected thereto, a cover swingably connected to the rear wall and having a closure flap on its swinging edge, the front and rear walls having corner flaps on their end edges, the end walls having cover supporting flaps foldable inwardly upon and in engaging relation with the upper edges of the corner flaps when they are in erected end wall engaging posi- 6, tion, the endwalls having pairs of inner and outer slits, the corner flaps having opposed up:- wardly and downwardly projecting'portions along their inner edges engageable with said pair of slits with portions of the bottom edge of the corner flaps in supported engagement with the bottom, said front and rear wall corner flaps when inserted into said inner and outer slits of thev end walls being movable in arcs of circles the centers of which coincide wtih the hinged connections of the front and rear wallsto the bottom, the vertical dimensions of the corner flaps approximating the vertical distance between the bottom and the cover supporting flaps, when the cover supporting flaps are foldable inwardly over the upper edges of the corner flaps, for the lower edges and the upper edges of the corner flaps to engage the bottom and cover supporting flaps respectively to support the corner flap against tilting both downwardly and upwardly and. to support the front and rear walls against tilting both inwardly and outwardly, the cover being closable upon said cover supporting flaps, and means for releasably connecting the cover clo' sure flap and the front wall.

8. A container comprising a bottom and end, front and rear walls hingedly connected thereto, a cover swingably connected to the rear wall, the front and rear walls having corner flaps on their and edges, the end wall having'coversupporting flaps foldable inwardly upon the upper edges of the corner flaps when they are in erected end wall engaging position, the end walls having pairs of inner and outer slits, the corner flaps having opposed upwardly and downwardly projecting portions along their inner edges engageable with said pairs of slits with portions of the bottom edge of the corner flaps in supported engagement with the bottom, said front and rear wall corner flaps when inserted into said inner and outer slits of the end walls being movable in arcs of circles the centers of which coincide with the hinged connections of the front and rear walls to the bottom, the vertical dimensions of the corner flaps approximating the vertical distance between the bottom and the cover supporting flaps, when the cover supporting flaps are foldable inwardly over the upper edges of the corner flaps, for the lower edges and the upper edges of the corner flaps to engage the bottom and cover supporting flaps respectively to support the corner flaps against tilting both downwardly and upwardly and to support the front and rear walls against tilting both inwardly and outwardly, the cover being closable upon said cover supporting flaps.

9. A container comprising a bottom and end, front and rear walls hingedly connected thereto, a cover swingably connected to the rear wall and having a closure flap on its swinging edge, the front and rear walls having corner flaps on their end edges, the end walls having cover supporting flaps foldable inwardly upon the upper edges of the corner flaps when they are in erected end wall engaging position, the end walls having slits therein, the corner flaps having portions engageable with said slits with portions of the bottom edge of the corner flaps in supported engagement with the bottom, said front and rear wall corner flaps when inserted into said end wall slits being movable in arcs of circles the center of which coincide with the hinged connections of the front and rear walls to the bottom, the vertical dimensions of the corner flaps approximating the vertical distance between the bottom and the cover supporting flaps,'when the cover supporting flaps are foldable inwardly over the upper edgesof the corner flaps, for thelower edges and the upper edgesxof the corner flaps to engage the bottom and cover supporting flap respectively to support the corner flaps against tilting both downwardly and upwardlyand to support the front and rear walls against tilting both inwardly and outwardly, the cover being closable upon said cover supporting flaps, and means for releasably connecting the cover closure flap and the front wall.

10, A container comprising a bottom and end, front and rear walls hingedly connected thereto, acove'r swingably connected to the rear wall, the front and rear walls having corner flap on their end edges, the end walls having cover supporting flaps foldable inwardly upon the upper edges of the corner flaps when they are in erected end wall engaging position, the end walls having slits therein; the corner flaps having portions engageable with said slits with portions of the bottom edge of the corner flaps in supported engagement with the bottom, said front and rear wall corner flaps when inserted into said end wall slits being movable in arcs of circles the centers of which coincide with the hinged connections of the front and rear walls to the bottom, the vertical dimensions of the corner flaps approximating the vertical distancebetween the bottom and the cover supporting-flaps; when the cover supporting flaps are foldable inwardly over the upper edges of the corner flaps, for the lower edges and the upper edges of the corner flaps to engage the bottom and cover supporting flaps respectively to support the corner flaps against tilting both downwardly and upwardly and to support the front and rear walls against tilting both inwardly and outwardly, the cover being closable upon said cover supporting flaps.

References Cited in the file of this patent UNITED STATES PATENTS V 7 Number Name Date Re. 12,217 Webb May 3, 1904 382,312 Lockwood May 8, 1888 610,950 Smith Sept. 20, 1898 668,550 Webb Feb. 19, 1901 1,525,687 Owens Feb. 10, 1925 1,533,478 Stella et al Apr. 14, 1925 1,681,940 Lander Aug. 28, 1928 2,303,796 Rueckert Dec. 1, 1942 2,447,563 Buttery Aug. 24, 1948 2,488,705 Buttery et a1. Nov. 22, 1949 FOREIGN PATENTS Number Country Date 555,273 France Mar. 19,- 1923 493,410 Great Britain Oct. 7, 1938

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