US1926365A - Knockdown paper container - Google Patents

Description

Sept. 12, 1933. Em I I 1,926,365

KNOCKDOWN PAPER CONTAINER Filed Feb. 19:51 2 Sheets-Sheet 1 A TTORNEYS' Sept. 12, 1933. s E TEI 1,926,365

KNOCKDOWN PAPER CONTAINER Filed Feb. 21, 1931 2 Sheets-Sheet 2 1 WIN INVENTOR.

ATTORNEYS Patented Sept. 12, 1933 1,926,365 KNOCKDOWN PAPER CONTAINER Samuel Bergstein, Cincinnati, Ohio Application February 21, 1931. Serial No. 517,520

3 Claims.

My invention relates to knock-down paper containers, and particularly to containers in which there is great economy in the material required for forming the container, and in which 5 the assembly of the container may be accomplished by a simple manual manipulation.

It is the object of my invention to provide a container composed of a body with side and end walls, and with a closure for the container formed by an articulated cover portion having a locking tongue, in which the entire container is formed from a single cut and scored blank.

It is another object of my invention to make such a container from a single cut and scored blank, in which there is a minimum wastage of the carton material in the pattern for the blank. Another object of my invention is to provide a container made from a single cut and scored blank, in which the forming of the container may be accomplished in a minimum sequence of steps in folding. 1

Another object of my invention is to provide a container in which the container is reinforced by overlapped flaps along both ends and one side, and in which the top cover is reinforced by overlapping flaps at its ends.

The above objects and other objects in simplicity of assembly and economy and sturdiness of construction, I accomplish by that certain combination and arrangement of parts of which I have shown a preferred embodiment.

Referring to the drawings:-

Figure 1 is a plan view of the blank from which the container is made.

Figure 2 is a plan view of a strip of carton material showing the economy of cutting the blank without waste.

condition.

Figure 7 is a perspective view showing the first step in the setting up of the carton from collapsed condition.

Figure 8 is a sectional view taken along the lines 8, 8 in Figure 7.

Figure 9 is a perspective view from above, showing a further setting up operation of the container.

Figure 10 is a sectional view taken along the lines 10, 10 in Figure 9, with parts broken away to indicate the arrangement of the several pieces of the several members forming the container.

Figure 11 is a perspective view of the cornpletely assembled and closed container.

Referring first to the blank forming the container, the blank has side walls 1 and 2, with one end wall 3 between and articulated to opposed ends of the side wall pieces 1 and 2, and with an end wall 4 articulated to the other end of one of the side walls, and with a sealing flap 5 for forming the four walls into a tubular enclosure.

Articulated to one side edge of the side wall 2 is the cover flap 6, and the cover flap has articulated to its opposite edge an interlocking flap 7, for extending down into the container after it is set up, and thus holding the cover flap in position. 7

Articulated to the opposite side edge of the other side wall flap 1 is the bottom wall 8. The bottom wall 8 has flaps 9 and 10 articulated to its ends. The flaps 9 and 10 are substantially the same area as the end walls 3. and 4, so that when the container is assembled the ends 3 and 4 will be reinforced with the bottom wall flaps 9 and 10, which also serve to hold the bottom wall 8 in place. Further, the bottom wall has a side flap 11 articulated to its outer side edge which interlocks the bottom wall and further provides reinforcement at the lower edge of the opposite side wall 2. The end walls 4 and 3 have flaps l2 and 13, respectively, articulated to their upper edges.

A similar box is shown in my prior Patent No. 1,461,961, dated July 17, 1923. My present invention is an improvement in the economy of cutting and in the knock-down assembly.

Referring to the sheet' 14 of container material from which the blank is cut, it will be noted that the patterns for the individual blanks fit together all in the same posture so that there 100 is substantially no wastage except at one side and two corner edges of the sheet. I have shown closing flaps 12 and 13 with slanted ends, which may be manually manipulated more readily leaving slight triangular cut out portions 15.

In the drawings, the solid black lines represent cut lines, and the dot and dash lines represent score lines, these being ordinarily provided by a combined cutting and scoring die in a single operation. 110

Referring to Figure 3, which indicates the first and claimed broadly are folded inwardly against the bottom member 8. The bottom member 8, together with the flaps 9 and 10 folded over against it, is then folded along its line of articulation with the side wall member 1, the folded blank then assuming the appearance indicated in Figure 4.

' The next folding operation is to fold the end wall member 5 over against the outer surface of the bottom wall 8. Adhesive is applied to the outer surface of the sealing tongue 5.

The fourth and last folding operation resulting in the complete assembly of the carton in knocked down position, is illustrated in Figure 6, in which the side wall 2 is folded along the line of articulation with the end wall 3 andso that it extends across this end wall 3 and the bottom wall 8 and its end part overlaps and becomes sealed against the adhesive coated 'surface of the sealing tongue 5.

The containers are shipped in the condition shown in Figure 6.

The setting up of the container from collapsed form is an exceedingly simple operation. By merely pressing in against the end edges of the collapsed container illustrated in Figure 6, the side and end walls will be formed out into rectangular shape, as indicated, with the bottom wall 8 together with its tongue 11 and with the reinforcing flaps 9 and 10 in the position indicated in Figure '7.

The bottom wall member 8 is then forced down so that it extends across the bottom of the container, and with the same manual manipulation the fingers of the operator are extended out and press the flap 9 against the end wall 4, and the flap 10 against the end wall 3.

The container will now be ready for filling, and after filling the cover 6 is folded down along the line of articulation between the cover and the side wall 2. The reinforcing flaps l2 and 13 are then folded inwardly so that they extend across the box parallel with the bottom wall, and after the tongue 'I has been inserted between an end edge of the tongue 12, and of the tongue 13, and the inner surface of the side 1, the container will be ready for shipment and use.

It will thus be obvious that the type of container forming the subject matter of my invention can be made substantially without waste, and in which not only are the operations of forming the collapsed container exceedingly simple, but the setting up of the collapsed con-- tainer so that it will be ready for use merely requires two manual manipulations; one, pushing the corners of the collapsed container so that it bends out into rectangular shape, and the other the pressing down of the bottom wall and the opening out of the reinforcing flaps so that they will reinforce the ends and a side wall.

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

1. The method of forming a container in knock-down condition, having side walls, having the bottom wall articulated to one of the side walls, and having two outer end walls attached to said side wall, and inner end walls extending from said bottom wall whichcomprises folding the inner end walls over against the bottom wall and thereafter folding the bottom wall with its end walls inlaid against said side wall, and thereafter efiecting a joint between the other side wall and an outer end wall to form a container which, when opened out, will have'a rectangular shape.

2. The method of forming a knock-down container of a cut and scored blank having side and end walls, one end wall extending between and articulated at each of its sides to the ends of both side walls, and the other end wall being articulated at one of its sides to the end edge of one of said side walls, said latter noted end wall having a glue flap articulated to it, one of said side walls having articulated to opposite sides thereof, a cover wall and a bottom wall respectively, said end walls having reinforcing flaps articulated thereto extending parallel to the cover wall, said bottom wall having end wall reinforcing flaps articulated thereto at its end edges, said bottom wall having a reinforcing flap articulated to its side edge opposite to the side edge by which it is articulated to said bottom wall, said blank being foldable with four folds, said method consisting in first folding said end wall reinforcing flaps over against the bottom wall, to which they are articulated, second, folding said bottom wall with articulated end wall reinforcing flap and said side wall reinforcing flap, over against the side wall to which it is articulated, third, folding said end wall with articulated glue flap, to which adhesive has been applied, over against the bottom Wall and, fourth, folding the other end wall and other side wall with the cover wall over against the bottom wall and pressing the free end of 120 said other side Wall to said adhesive, thus completing the folding of the container.

3. The herein described method of folding and fastening containers to be shipped collapsed or knocked down, and which can be easily and quickly assembled or erected for filling the contents, said containers having side walls, end walls, lid and bottom integrally attached, said bottom having one inner side wall, and two additional inner end walls, which consists in folding the first inner end walls against the bottom, then folding the bottom over on the inner side of one of the side walls, with the folded inner end walls extending between the bottom wall 135 and one of the side walls, and thereafter folding and fastening one of outer end walls to one of the outer side walls.

SAMUEL BERGSTEIN.

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