US1724224A - Carton and means for opening the same - Google Patents

Description

Aug. 13, 1929. 4 A. c. SCHROEDER CARTON AND MEANS FOR OPENING THE SAME Filed May 28, 1927 INVENTOR H W/0E C1 Sc/JZOEDER ATTORNEYS Patented Aug. 13, 1929.

um'rizo STATES,

ARTHUR C. SCHROEDER, F SYRACUSE, NEW YORK.

CARTON AND MEANS FOR OPENING THE SAME.

Application filed May 28,

This invention relates to improvements in cartons, and has particular reference to the I method of manufacture thereof and the means for opening the same.

An object of the invention is to provide a simple and effective means for quickly cutting the material of the carton adjacent one of its end closures in such manner that access may be had to the interior of the carton and its contents Without injury to the latter.

Another object is to extend a ripping cord along the interior of the side walls of the carton with an end of the cord-projecting through one wall, and to secure said cord in 1 position by a flexible strip which is so positioned that, after the cutting or ripping operation by the cord, the cut portion at one end of the carton will still be joined to the main body thereof by said strip, which may be subsequently torn to completely sever said portion.

A further object resides in securing a length of ripping cord in position on a blank of material from which a number of cartons are to be formed, then cutting said blanks into the required lengths for making the cartons, and thereafter forcing a short portion of the cord through one of the walls of each carton so that said portion will project exteriorly of said wall where it can be readily grasped to effect the ripping operation.

The above and other objects will appear more clearly from the following detail description, when taken in connection with the accompanying drawing, which illustrates a preferred embodiment of the inventive idea. In the drawing Figure 1 is a perspective view of a carton constructed in accordance with the invention;

Figure 2 is a plan view of the blank from which a single carton is formed;

Figure 3 is a section on the line 33'of -Figure 2; and Figure 4: is a section on the line 4--4 of Figure 2.

In themanufacture of cartons according to the present invention, a well known material, such as double faced corrugated paper, is employed. During the fabrication of this material, which includes the silicating of the outer sheets on the opposed faces of the inner corrugated layer or sheet, it has been found that, without additional labor or machinery and atthe time when the sheets are silicated, a ripping cord,-indica ed in the 1927. Serial No. 194,904.

drawing by the numeral 15, may be laid upon one of the outer sheets and extended along the entire length of material being run through the machine. At the same time, reinforcing strips 16 and 18, of different paper or other flexible material, may be secured to said sheet longitudinally thereof so as to reinforce the scored or folding lines 14 made in the material and the strip 16 is so placed as to cover the cord 15 and thereby firmly secure it to the sheet. Following the application of the cord and reinforcing strips the material is cut into proper lengths to form a plurality of blanks from each ,of which is made one of the cartons illustrated in the drawing. The blank is cut so that the corrugations of the inner sheet or layer thereof extend transversely of the length of the blank, as clearly illustrated in Figures 3 and 4, and in sodoing the ripping cord is also cut at the ends of the blank so that said cord extends the entire length thereof. The blank is now cut intermediate its ends to form the sections 5, 6, 7 and 8, which 'con- 80 stitute the side walls of the carton when the blank is folded transversely, said intermediate cuts also forming the flaps 9, 10, 11 and 12 which extend from the opposite longitudinal edges of the side walls and which. combine to form the top and bottom closures of the carton when said flaps are folded in pairs. The folding lines 14, previously referred to, for the various flaps are formed by a double row of scoring extending on each side and longitudinally of the sectlons 5 to it and preferably overlapping said folding Ines. A suitable tool is utilized to punch an openin 13 i-n the blank adjacent one end thereof and at the same time project the portion 17 of the cord, between said opening and. said end, through the opening so that when the carton is folded said end will extend exteriorly thereof and be in position Where it may be grasped when opening the carton. Thus, with the exception of the ends 17, the cord 15 extends practically entirely around the interior of the four side walls of the carton in parallel relation and adjacent to the folding lines 14 which define the flaps constituting the top closure of the carton. It will be understood, of course, i that the cord may be made to extend around only three side walls by forming the opening p 13 adjacent the right-hand edge of the section 7, for instance, in which event the porjacent folding lines 14 and portions of the flaps 9 to 12. This strip 16, during its application to the material from which the blank is cut, is secured, by means of an adhesive, over its entire surface to portions of the side walls and closure flaps and inasmuch as the same covers both the ripping cord and pair by a suitable adhesive applied to the entire area of the abutting surfaces of the flaps. This manner of closing the carton is one which is commonly employed with receptacles of this kind and has the disadvantage that, Without an opening means such as hereindescribed, access cannot be readily had to the interior of the carton through a clothereupon to tear the flexible strip. It. will sure without danger of injuring the. contents of the carton."

When the end 17 of the ripping cord is pulled in the direction of the arrow indicated in Figure 1, the material is cut transversely of the corrugations until the top closure and portions of three or four of the side walls are separated from the remaining portions of said wall. In so doing, however, the flexible strip 16 is unaffected and when the cutting operation has been completed thetop closure 'isstill connected to the remainder of the cartonby reason of the fact that the strip is secured to the side walls on both sides of the ripping. cord. Hence the top closure will not be completely detached until such time when the operator exerts a 'suflicient pull to retain the closure connected to the side walls, after the cutting operation, said strip need not necessarily overlap the folding lines 14,. but only be secured to the material on both sides of the ripping cord.

With a construction of the type described it is apparent that a carton is provided to the interior of which access may be had to examine or remove the contents of the carton without injury to said contents which otherwise occurs at times when implements are inserted under the closure flaps to pry the same open.

What is claimed is:

1. The herein described method which con sists in laying a ripping cord along one side of a length of corrugated material while said material is being formed, securing said cord to the material by a flexible strip, thereafter cutting said material into suitable lengths to form blanks from which cartons are to be made, and then forcing a short length'of said cord through the material of each blank so as to project from the opposite side thereof and constitute a grip by means of which the material may be ripped by a pull on said cord.

'2. The herein described method which consists in securing a ripping cord along a length of material while in the act of fabrieating the latter, cutting said material into suitable lengths to form blanks from which cartons are to be made, and forcing a short length of said cord through said material adjacent one end of each blank.

3. The herein described method which consists in securing a ripping cord along one side of a length of corrugated material while in the act of fabricating the latter, cutting said material and cord into suitable lengths to form blanks from which cartons are to be made, nd forcing a length of said cord through the material of each blank so that it will project from the side thereof opposite that to which the cord is secured and at a point distant from one end of said blank.

In testimony whereof I have affixed my signature.

ARTHUR C. SCHROEDER.

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