US2057852A

US2057852A - Carton

Info

Publication number: US2057852A
Application number: US750427A
Authority: US
Inventors: Philip R Smythe
Original assignee: Individual
Current assignee: Individual
Priority date: 1934-10-29
Filing date: 1934-10-29
Publication date: 1936-10-20
Anticipated expiration: 1953-10-20

Description

Patented Oct. 20, 1936 STATES PATENT OFFICE 1 Claim.

My invention relates to: a carton of the type having a hinged flap and refers particularly to a carton of heavy paper.

An object of my invention is to provide a carton which is readily folded for packing purposes and which is of strong and durable construction.

A further object of my invention is to provide means for retaining the carton in closed position, maintaining a rigid structure.

A further object of my invention is to provide means for opening or closing the carton quickly and conveniently.

A further object of my invention is toprovide a carton of this type which can be handled roughly without injury to the same.

A further object of my invention is to simplify the construction of this invention as much as possible to make the same reasonable in the cost of manufacture.

With these and other objects in View, my invention consists in the construction, arrangement and combination of the various parts of my device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claim, and illustrated in the accompanying drawing, in which:

Figure 1 is a plan view of the carton in its open position,

Figure 2 is a sectional view of Figure 1 taken along the lines 22,

Figure 3 is a plan view of the carton in its closed position,

Figure 4 is an enlarged detail view taken along the lines 44 of Figure 1, and

Figure 5 is a plan view showing the collapsing feature of the carton.

In its preferred form, the carton is made of heavy carboard or paper, although it will be understood that it can be made of other materials as well.

I have used the character H] to represent the end walls of the carton, and II, the side walls thereof. Affixed between the walls I l is the member l2 which includes the flanges l3 bent oppositely as shown and attached to the walls II with the staples M.

The upper and lower ends of the partition l2 are looped at I?) along the length thereof and attached with staples at Hi. The loop l5 receives the wire form ll which is a continuous piece of wire bent into the loops N3 of which, in this construction, there are four. These loops extend through the openings l9 which are cut out from the paper or cardboard loop I5.

It will now be seen that these loops I8 project slightly above the upper and lower edges of the carton as shown.

The carton also includes the side flaps and the end flaps 2 I. The side flaps 20 include circular openings 22, and the end flaps include the openings 23. The end flaps 2| are adapted to overlap the central partition I2, but the side flaps 20 fall to the position as indicated by the dotted lines at 24 when closed and do not overlap. The flaps 20 are indented at 25 to insure a neat closure. The end flaps 2| can be attached to the carton as shown in Figure 2 where they include the U shaped extremities 26 which receive the integral U shaped extensions 2'! of the end walls In. These members are attached by means of the staples 28.

The

openings

22 and 23 are so positioned on the flaps that when they are closed, they will all overlie the loops l8 and receive the same.

For instance, in closing the carton, the side flaps 2B are first folded inwardly so that the openings 22 receive the respective loops, then the end fiaps 2| are folded inwardly, first one flap with its corresponding openings receiving the loops, and then the other. This feature is illustrated more clearly in Figures 2 and 4. After this operation, the wire bolt 29 is passed through the upper end of the loop l8, thereby closing the carton effectively.

The bolt 29 includes the handle portion 30 to facilitate removal and insertion thereof. After the bolt 29 is once inserted, the natural tendency of the flat members is to exert resilient force against the bolt so that it will be maintained tightly and in firm engagement so that the carton can be handled quite roughly without slipping or opening of the flaps.

It will be understood that the section taken on the lines 44 is taken with the flaps in the closed position.

It will be understood that this construction can be followed using this particular flap arrangement on the top only instead of on both bottom and top as shown in the drawing, in case it is desired to use a stiff carton.

It will be noted from Figure 5 that this type of carton can be readily collapsed when the fiaps are open to permit flattening of the entire carton for shipping purposes. This figure shows the beginning of the collapsing operation, and it will be noted that the hinging effects of the partition l2 and the end walls Ill permit of this feature.

It will be noted that when in closed position, the incorporation of the openings together with the received loops and the locking bolt provides a positive rigid structure which absorbs all strains be opened by one simple operation. Also the overlapping relation of the flaps provides a comparatively tight closure.

It will be also noted that although the carton is collapsible, the feature of the partition, etc., provides strength to the structure as well as the other features mentioned.

It will now be seen that I have provided a carton which is strong and durable and of very inexpensive construction, and it will also be seen that this carton can be folded when not in use, and which can be readily opened or locked.

a carton which can be handled roughly without injury to the carton or its contents and which can be quickly opened or locked.

Some changes may be made in thecons'truction and arrangement of the parts of my invention without departing from the real spirit and purpose of my invention, and it is my intention to cover by my claim any modified forms of structure or use of mechanical equivalents, which may be reasonably included within their scope.

I claim as my invention:

A carton comprising parallel side walls and end walls, a partition parallel to the end walls and hinged to the side walls including bent over edges, an integral wire form including a plurality of loops received within the bent over edges with I said loops projecting above the partition, end and It will be seen further that I have provided such side flaps hinged to end and side walls having openings adapted to receive said loops when the carton is closed, and a locking bolt receivable through said loops and above said flaps.

v PHILLIP R. SMYTHE.