US2021254A - Box and method of making the same - Google Patents

Description

NOV. 19, 1935. c E, CLAFF 2,021,254

BOX AND METHOD OF MAKING THE SAME Filed July 18, 1934 2 Sheets-Sheet 1 67508202 25. Claff ttumrgs.

Nov. 19, 1935. Q LAFF 2,021,254

BOX AND METHOD OF MAKING THE SAME Filed July 18, 1954 2 Sheets-Sheet 2 CkeoZeI' Z. CZaff' Hnnzntur B! r 1 flttomrgs.

Patented Nov. 19, 1935 UNITED STATES PATENT OFFIQE BOX AND METHOD OF MAKING THE SAME 4 Claims.

This invention relates to boxes formed of foldable box-board material and while they are especially designed for use as shoe boxes, it is to be understood that the invention can also be em bodied in boxes to be used for other purposes.

Heretofore the construction of boxes of this type has generally necessitated the provision of a blank foldable to provide the end walls as well as the sides and bottom. This has usually resulted in considerable waste of material which has added materially to the cost of production.

It is an object of the present invention to provide a box the bottom and side walls of which can be formed in one continuous strip of foldable box-board material with minimum waste while the end walls of the box can be formed in another continuous strip of foldable box-board with no waste.

Another object is to apply a layer of finishing paper to each continuous strip of foldable boxboard material before the strips are divided into the blanks from which the boxes are to be formed so that the blanks, when assembled, will form a complete box requiring no finishing operation such as the application or folding of finishing paper or the like.

It is another object of the invention to form a box of three separate blanks, those edges of the blanks which are left free and exposed in the finished box being properly finished with a covering of paper or the like before the blanks are assembled, thereby to avoid the necessity of any finishing operation subsequent to the assembly of the blanks.

A still further object is to apply a web of finishing paper to each web or strip of box-board material prior to the cutting of the blanks therefrom, the edge portions of the paper web being folded over the edge portions of the box-board material to produce the finished edges of the blanks to be assembled.

A further object is to produce the end wall blanks of the boxes from a single web of boxboard material finished as above stated, these end wall blanks being cut therefrom in pairs, the outer or free edge of each blank of a pair being the finished edge and the blanks of each pair being separable to constitute the opposed end walls of a single box.

Another object is to produce a box at much lower cost than has heretofore been possible where a finished exterior appearance is requisite, this being due not only to the ease with which the three separate blanks can be shaped and assembled, but also to the fact that all waste of paper and box-board material is eliminated in the formation of the end wall blanks; that some of the laps and folds heretofore required in the application of Webs of finishing paper, are eliminated with a resultant saving of material; and 5 that the waste in the formation of each bottom and side wall blank is reduced to the minimum.

It is another object of the invention to provide a box of cheap construction which, when displayed in the usual manner on a shelf, has the appearance of boxes of more expensive constructions.

With the foregoing and other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts and in certain steps of the method hereinafter more fully described and pointed out in the claims, it being understood that changes may be made in the construction and arrangement of parts and in the disclosed method without departing from the spirit of the invention as claimed.

In the accompanying drawings the preferred form of the invention has been shown.

In said drawings Figure 1 is a perspective view illustrating the successive steps followed in the production of a pair of end wall blanks to be used in the formation of a box.

Figure 2 is a section on line 2-2, Figure 1.

Figure 3 is a perspective View of a portion of a finished web from which a finished main or bottom and side wall blank has been produced.

Figure 4 is a perspective view showing the three blanks shaped and positioned for assembly.

Figure 5 is a perspective view of the completed box.

Referring to the figures by characters of reference l designates a continuous strip or web of box-board material the width of which is equal to twice the height of the box to be formed. Affixed to one surface of thisweb is another web 2 of paper or other suitable finishing material slightly wider than the web I so that the free longitudinal edges can be folded over the correspending edges of web i and ailixed thereto to form finishing folds 3 which conceal the respective edges of web I. This web 5 with the applied web 2 is divided longitudinally along its center by means of a score 4 while at regular intervals the webs are out off as at 5.

It will be obvious that by assembling and severing the webs as described, each length cut off will form a pair of end wall blanks 6 which can be conveyed into a suitable assembling machine 55 while still joined at the score line 4, to be subsequently separated, or can be severed completely along the line t prior to admission to the blank assembling mechanism. In any case each blank 6 of each pair will have one finished edge indicated at I and as the two blanks are oppositely disposed they can be so fed into a blank assembling machine as to be properly positioned for assembly with their finished edges 1 uppermost at the respective ends of the box.

The production of the main blanks forming the bottom and sides of each box necessitates the application of a web 8 of finishing paper or the like to one surface of a continuous web 9 of foldable box-board material. The web 8 is slightly wider than the web 9 so that its edges can be folded inwardly to conceal the corresponding edges of web 8, as shown at ID. Web 9 is of a width equal to the width of the bottom H and of the sides 52 of the main blank. During the movement of the webs toward box forming position, the said webs are creased or scored longitudinally as at 3 to separate the sides 12 from the bottom ii. They are also creased or scored transversely as at M to provide lines along 7 the same is folded by suitable mechanism so that its sides l2 will be extended at angles to the bottom H while the end flaps l5 at the two ends of the blank will be folded into parallel planes. The previously formed pair of end blanks 6 are then positioned with one of said blanks adjacent to each end of the main blank after which said end blanks are pressed against the flaps l5 and. caused to adhere thereto, thereby to produce a finishedbox as shown in Figure 5. It will be noted that in the finished structure the free edges of the box are all finished by the folded edge portions of the paper layers as shown at l and if). It will be noted further that the end blanks extend throughout the height and width of the box. Consequently when boxes of this construction are arranged for display upon a shelf or the like, they will have the appearance of more expensive boxes in which the finishing paper is applied subsequently to the assemblage of the blanks.

It has been found in practice that by making a box as herein described a saving of approximately $7.00 per M can be effected over other boxes now in use and of the same size and proportions.

What is claimed is:

l. The method of producing a container which includes the step of afiixing a continuous web of finishing material to a continuous narrower web of box-board material, folding the edge portions of the finishing material over the corresponding edge portions of the box-board material to provide opposed finished blank edges, cutting off lengths of the Web each to produce a pair of blanks for use of opposed walls of a finished container, and dividing each length along its center to produce a pair of opposed similar blanks for incorporation in a finished container each blank having a single finished edge, its remaining edges being unfinished.

2. The method of producing a three piece container having finished top edges which includes the step of afiixing a continuous web of finishing material to a continuous narrower web of boxboard material, folding the edge portions of the finishing material over the corresponding edge portions of the box-board material to provide opposed finished blank edges, cutting, scoring or creasing and folding a width of the joined webs to provide a main blank having a bottom, sides, and end fiaps, the finished edges of the blank constituting the top edges of the respective sides, affixing a continuous web of finishing material to a continuous narrower web of box-board material, folding the edge portions of said finishing material over the corresponding edge portions of the box-board material to provide opposed finished blank edges, cutting off a length of the connected webs to produce a blank of double width, subsequently separating the double width blank to form a pair of opposed similar blanks each having a single finished edge and its remaining edges unfinished, and finally applying the blanks of said pair to the flaps at the respective ends of the main blank, the finished edges of the pair of blanks constituting the top edges of the end walls of the container formed by said blanks.

'3. The method of producing a container which includes the step of afiixing a continuous web of finishing material to a continuous narrower web of box-board material, folding the edge portions of the finishing material over the corresponding edge portions of the box-board material to provide opposed finished blank edges, cutting off lengths of the web to produce pairs of blanks for use as opposed walls of a finished container, and separating the blanks of each pair prior to their incorporation in a finished container.

4. The method of producing a three piece container having finished top edges which includes the step of afiixing acontinuous web of finishing material to a continuous narrower web of boxboard material, folding the edge portions of the finishing material over the corresponding edge portions of the box-board material to provide opposed finished blank edges, cutting, scoring or creasing and folding a width of the joined webs to provide a main blank having a bottom, sides, and end flaps, the finished edges of the blank constituting the top edges of the respective sides, affixing a continuous web of finishing material to a continuous narrower web of box-board material, folding the edge portions of said finishing material over the corresponding edge portions of the box-board material to provide opposed finished blank edges, cutting off a length of the connected webs to produce a pair of blanks, subsequently separating the blanks of said pair, and finally applying the blanks of said pair to the fiaps at the respective ends of the main blank, the finished edges of the pair of blanks constituting the top edges of the endwalls of the container formed by said blanks.

CHESTER E. CLAFF.

Images