US2789405A - Method of packaging - Google Patents

Description

April 23., 1957 H. L. METzGER 2,789,405

METHOD OF PACKAGING Filed Feb. 15, 1953 3 Sheets-Sheet 1 fra/6271607 April23, 1957 H. L. METzcaER 2,789,405 METHOD 0F PACKAGING Filed Feb. 15, 1953 5 Shee'ts-Sheet 2 "k7/f5 fforney fen-ry Maggy y April 23, 1957 H. L. MTzGr-:R

METHOD 0F' PACKAGING 3 Sheets-Sheet 3 Filed Feb. 13, 1953 United States Patent O 2,789,405 n METHOD or PACKAGING Henry L. Metzger, Castleton-on-Hudson, N. Y., assigner to Fort Orange Paper Company, Castleton-on-Hudson, N. Y., a corporation of New York Application February 13, 1953, Serial No. 336,793 l 4 Claims. (Cl. 53-14) This invention relates to an improved method of packaging. More particularly, it has to do with the method of providing a tubular construction adapted to be end-loaded mechanically with a roll of sheet material having a tubular core in a manner to provide an effective rotating and positioning means for said roll in said package as Well as a novel type of hold-down cover closure cap, and the provision of such a method of packaging is a principal object of the invention.

I am well aware of the fact that cartons or boxes containing cored rolls of wax paper or metal foils have been on the market for :a long time. However, such boxes are made and subsequently lled with such rolls of sheet material manually which takes a considerable amount of time and space and consequently appreciably increases the cost to the ultimate consumer. Such boxes have various types of covers. One form is to have a single panel overlying the roll of material with a tuck-in flap which may initially be adhesively secured to the front wall of the box and later, after the box has been opened, tucked into the box between the front wall and the web and roll for removing selected lengths of sheet material therefrom by severing along the top edge of the front wall which is usually provided with a strip of metal having a serrated cutting edge. Or the box may have the tuck-in ap initially tucked into position between the front wall and roll. In order to hold the roll in place, tabs, including triangular panels attached to a marginal edge of one of the end wall panels, have been suggested but it is necessary to ex or bend the ends of the triangular tabs with a hope that they will somehow become seated or enter the core of the roll of sheet material. Such triangular tabs are adapted angularly to project into the core, rather than coaxially projecting therein, and when the box -is manually loaded these tabs cannot with any accurate degree of certainty always be assumed properly to be positioned, and to remain so positioned even when attempts are made to end-load the same.

Other boxes employing diierent types of covers and having a marginal extension flap or the cover panel with a serrated cutting edge, and side portions connecting suoh flap and cover have also been in use, but such boxes do not employ means for holding the roll in position and they are so constructed as to make it necessary manually to load the same. The latter type of boxis preferable although there has been a long felt want in the industry for a box which would combine the best features of both types of boxes. No method of end-loading a structure combining the best features of such boxes heretofore has been provided, insofar as I am aware, to bring about a solution to this problem. However, this has now been accomplished by means of the present invention.

Generally, therefore, it is also an object of the invention to provide a method of packaging a roll of sheet material having a tubular core to provide a dispensing ice package that is time and space saving, consequently more economical to packager and consumer, positive in operation, and which will function with relative freedom from mechanical diiculties.

More specifically, it is an object of the invention to provide a method for producing a dispensing package by the provision of a die-cut and scored blank constituting oppositely disposed side, bottom and cover panels, and end panels, the cover panel having a front extension llap, and a ap and cover panel each having opposite lateral extension tabs adhesively securing the flap to the outside surface of the side panel opposite that to which the cover is attached to form a tubular structure, end-loading the tube with the roll of sheet material, adhesively and overlappingly securing together each of the end panels to provide end walls for the package, and adhesively and overlappingly securing together the lateral extension tabs in overlying relation with respect to the end walls in order to provide a. hold-down cover c-ap adapted to rein force the walls of the package and to facilitate the dispensing and severing of selected lengths of sheet material from the package.

Another object of the invention is to provide a method of making such a dispensing package wherein the longitudinal edge of the front extension ilap, prior to securing the same to the side panel constituting the front wall of the package, is equipped with a stiiening material, for example, a strip of metal having a serrated edge, or marginal strip of glue or plastic material coating or impregnating the longitudinal edge of the flap to stillen and harden the same to increase the severing characteristics thereof when a sheet from the roll is torn along such edge. l

A further object of the invention is the provision of a method of end-loading the tubular structure with the cored roll of sheet material and providing squared tabs on the ends of selected end wall panels so that they readily can be tucked into the core in coaxial alignment with the longitudinal axis thereof.

Still another object of the invention is to provide a tubular structure in which the cover and cover extension.

ilap are each provided with lateral tabs which adhesively :and overlappingly can be secured together in overlying relation with respect to the end Walls after end-loading the structure and positioning the squared roll holding tabs to provide a hold-down cover cap adapted to reinforce the walls of the package and to facilitate the dispensing and severing of selected lengths of the sheet material from the package.

Other objects of the invention will in part be obvious and will in part appear hereinafter. y

The invention accordingly comprises the several steps and and the relation of one or more of such steps with respect to each of the others thereof, which will be exemplilied in the method hereinafter disclosed, and the scope of the :application of which will be indicated in the claims.

For a fuller understanding of the nature and objects of the invention reference s'hould be had to the following detailed description taken in connection with the accompanying drawings, in which:

Fig. l is a plan view of a preferred form of diefcut and scored blank essential for carrying out the method embodied by the invention;

Fig. 2 is 'a view similar to Fig. l showing the front panel overfolded upon the bottom panel.

Fig. 3 is a view similar to Figs. 1 and 2 showing the blank further folded with the cover extension ap adhesively secured to the front panel to provide a collapsed ltubular structure.

Fig. 4 is a view similar to Fig. 3 illustrating a modied form of tubular structure utilizing a dierent cutting edge in place of the serrated metal strip appearing in Fig. 3;

Fig. S is a perspective View of a fragmentary end portion of a squared tubular structure showing a cored roll of sheet material end-loaded therein;

Fig. 6 is a View similar to Fig. 5 illustrating the end wall sealing of the package;

Fig. 7 is a perspective view of a fragmentary portion of. a collapsed tubular structure;

Fig. 8 shows the structure of Fig. 7 in squared position;

Fig. 9 shows the structure of Fig. 8 in a clockwise quarter-turn position with the end wall panels slightly outwardly flared and a roll of sheet material partly endloaded therein;

Fig. 10 shows the roll` as having been enddoaded and the squared roll holding tabs end-tucked into the core of the roll;

Fig. 11 shows the structure in Fig. 10 after a second clockwise quarter-turn presenting the outer end wall panel in. position with an adhesive applied thereto with the lateral tabs of the cover and glue ap ready to be Wrapped around the end Wall;

Fig. 12 is a perspective view of a fragmentary portion of the completed package;

Fig. 13 is a view similar to Fig. l2 illustrating, the manner of opening the package;

Fig. 14 illustrates the package of Fig. 13 opened for the withdrawal of the end of the sheet of roll material; and

Fig. 15 is a perspective view of such a dispensing packagewith the cover closed after removal of the end of a selected portion ofthe sheet, the latter being severed along the cutting edge of the cover extension flap.

Referring to the drawings, there is indicated generally at 21 a blank of diecut and scored paper board material comprising front, bottom, back and top cover panels 22-25 respectively.

These panels are dened by longitudinal parallel score lines 26-29, and transverse score lines 30 and 31.

Extending from the panel 22 are end wall panels 32 each having substantially squared roll holding tuck-in tabs 33 preferably of a diameter somewhat smaller than the core within the roll of sheet material.

The panel 24 has similar end wall panels 34 preferably Without squared tabs such as that indicated at 33 on the end wall panels y32 and these panels 34 are of a length when folded with the panels 32 to lie closely adjacent the inner ends of the tabs 33 and each of the panels 32 asshown by the score lines 35 delining the panel 32 and squared tabs 33.

The bottom panel 23 is provided with outside end wall panels 36 adapted to be provided with an adhesive as hereinafter described and to overlappingly and adhesively engage the panels 32 and 34 when the latter have been folded and the squared tabs 33 tucked into the core of the roll of sheet material.

The cover panel 25 has a cover extension flap 37 to which there has been preferably ailixed in any suitable manner` a metal strip 38 having a serrated cutting edge 39. The cover panel 2S and tiap 3'7 are provided with lateral extension tabs 40 and 41 respectively.

The blank 21 is preferably provided with glue spots 42 on the extension tlap 37 and, if desirable, similar glue aps may be applied to the underside of the panel 22 as indicated.

After the steps of providing a blank as above described, the panel 22 is folded along the score line 26 in overlying relation to the panel 23 as shown in Fig. 2. The panel 25 together with the flap 37 is then folded along the score line 28 as shown in Fig. 3 so that the glue spots 42 will come into contacting relation with the folded panel 22 to provide a collapsed tubular structure as shown in Fig. 3'.

InFig. 4, in place of the metal' strip 38, the marginal edge of the cover extension ap 37 may be provided with a line of glue or plastic material either coating the edge and margin adjacent the edge, or impregnating the same as indicated at 38'.

in Figs. 5 and 6 the collapsed structure is illustrated as being squared with a cored roll of sheet material 43 end-loaded therein with the end Wall panels 32 and 34 inwardly folded, the squared flap 33 on the panel 32 broken along the score line 35 and tucked into the cored roll 43 into coaxial alignment with the latter, with adhesive d4 coating the outside end wall panel 3d ready to be overfolded and atxed to the panel 32 and 34. The panels 4t) and 41 are last to be positioned. Preferably, adhesive is applied to the back of the panel 41. This panel is now-folded around and against the end of the panel 36 in contacting relation therewith and the panel 4d is folded downwardly into adhesively engaging contact with the panel 41 to provide a wrapped-around cover hold-down cap.

The foregoing steps of providing a tub-ular structure and end-loading the same quickly illustrates the method embodying the present invention and either manually or mechanically end-loading such a tubular structure to provide a dispensing package. However, the loading steps are performed mechanically by a machine which has now been provided therefor, which is not included in the present disclosure. The steps of manipulating the package as disclosed in Figs. 9 through l2 are followed. The collapsed tubular structure shown in Fig. 7 is first squared as shown in Fig. 8. The end wall panels 32, 34 and 36, together with the lateral extension tabs 4i) and 41, are slightly flared outwardly as the structure is given a clock- Wise quarter-turn and the roll of sheet material 43 is end-loaded therein as shown in Fig. 9. Thereafter, the panel 32 is folded against the roll 43 at the same time the squared tuck-in tab 33 is broken around the score line 35 and the squared tab tucked into the cored roll 43 in coaxial alignment with the longitudinal axis of the latter as shown in Fig. l0.

The package as thus far completed is then given another clockwise quarter-turn as shown in Fig. 11, the end wall panel 34 being infolded against the end of the roll and adjacent the inner edge of the squared tab 33 along the score line 35 and edge of the panel 32. This brings the thus far completed package to a position Where the outside end wall panel 36 is in a lowerrnost position so that adhesive 44 mechanically can be applied thereto as well as to the back of the panel 40 as indicated at 41 in Fig. ll. Thereafter, the panel 36 is adhesively secured to the inner end wall panels 32 and 34, the tab 41 is wrapped around `the outside of the outer end wall panel 36 andthe tab 40 is Wrapped against the tab 41 to com plete the dispensingfpackage as shown in Fig. 12.

It will be understood that mechanical opposite end Wall and cover closing operations preferably are performed simultaneously.

The dispensing package, of course, is opened and a selected sheet removed and severed therefrom as indicated in Figs. 13, 14 and l5. The user preferably in serts a knife blade 46 between the panel 22 and exten sion ap 37 to separate the same where both panels are held together by the glue spots 42. The hold-down cover cap is then lifted, the end of the sheet of roll material grasped, and a` selected portion unwound from the roll 43. The hold-down cover cap is then closed and easily held down as illustrated so that the sheet can be severed therefrom along the severing edge of the flap 37.

It is signicant that the roll cannot and need not be removed once the iirst sheet has been torn therefrom. Also, it is not necessary to constantly open and close the cover to reach for the previously severed edge of the sheet. Fingering is thus substantially eliminated in opening and closing the cover except to insert the index nger underneath the' cover extension flap 37 to grasp the alreadyl severed sheetY which will readily unwind from the roll because of the positive supporting action of the squared tabs 33.

Since certain changes may be made in carrying out the above method without departing from the scope of the invention, it is intended that all matter contained in the above description, or shown in the accompanying drawings, shall be interpreted as illustrative and not in a limting sense.

It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described, and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.

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

1. The improved method of packaging a roll of sheet material, having a tubular center, to provide an endloaded dispensing package which comprises the following steps: providing a die-cut and scored blank constituting opposite side wall panels, a bottom wall panel integrally and hingedly connected therebetween, and a top wall cover panel integrally and hingedly connected to one of said side wall panels; a longitudinal glue ap integrally and hingedly connected to said top cover panel; inner end wall panels integrally and hingedly connected to the ends of said side wall panels, one of each of which has a tuck-in tab integrally and hingedly attached thereto at opposite ends of said side Walls; an outer end wall panel integrally and hingedly connected to said bottom panel at each end thereof; and glue tabs integrally and hingedly connected to opposite ends of said cover panel and glue ap respectively; folding said blank upon itself and spot-gluing said glue ap to a side wall panel to provide a collapsed tube; squan'ng said tube; end-loading a roll of sheet material therein having a tubular center;

infolding said inner end wall panels into co-planar relation and simultaneously inserting said tuck-in flaps into opposite ends of the tubular center of said roll; infolding said outer end Wall panels and adhesively securing the sam-e to said inner end wall panels; and infolding said glue tabs adhesively securing them permanently in overlapped relation to each other, and in overlapped relation to said outer end wall panels; said glue ap and tabs being readily releasable, and thereby providing a hold-down cover-cap to reinforce the walls of said package and to facilitate dispensing and severing of selected lengths of said sheet material from said package.

2. The method dened in claim l, and further characterized by the step of applying to the longitudinal edge of said glue flap a stiening material to increase the severing characteristics thereof when a sheet from said roll is torn along said edge.

3. The method defined in claim 1, and further characterized by the step of applying a serrated strip of metal to the longitudinal edge of said glue ap to increase the severing characteristics thereof when a sheet from said roll is torn along said edge.

4. The method defined in claim 1, and further characterized by the step of impregnating a marginal strip of glue along the free longitudinal edge of said glue flap to harden and stiien said edge to increase the severing characteristics thereof when a sheet from said roll is torn along said edge.

References Cited in the file of this patent UNITED STATES PATENTS 2,119,058 Richardson May 31, 1938 2,472,521 Danenbauer June 7, 1949 2,549,048 Bergstein Apr. 17, 1951

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