Title:
Knock-down end closing carton
United States Patent 2044103


Abstract:
The present invention relates to knock-dow cartons or containers, made, preferably, fron paper board and the like, and has for its principa object the provision of an integral web-end do sure thereon, of a collapsible, tucking and inter locking nature. Another feature of the structure herein...



Inventors:
Harry, Rossi
Application Number:
US69507333A
Publication Date:
06/16/1936
Filing Date:
10/25/1933
Assignee:
ROBERT GAIR COMPANY INC
Primary Class:
Other Classes:
229/139
International Classes:
B65D5/06
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Description:

The present invention relates to knock-dow cartons or containers, made, preferably, fron paper board and the like, and has for its principa object the provision of an integral web-end do sure thereon, of a collapsible, tucking and inter locking nature.

Another feature of the structure herein dis closed relates to the manner of scoring some o the panels forming the tuck closure and of cut. scoring others of the web panels to permit thE cover to be readily collapsed to closing position especially if made of comparatively stiff or heav3 board, and to be readily opened, and reclosed, as often as desired.

The closure, as will be more readily ascertained as the description proceeds, Is comprised of a plurality of minor triangular web-forming panels scored, and cut-scored from their associate panels, and two main panels, the latter being rectangular, and forming, when in closing arrangement, locks for releasably locking all of the webs and panels when in closed position.

These and other capabilities will be apprehended as the herein description proceeds and it is obvious that modifications may be made in the structure herein without departing from the spirit hereof or the scope of the appended claims.

In the drawing,-. Fig. 1 is a view, in elevation, of the carton with 80 both ends closed; ig. 2 is a plan view of Mg. 1; Fig. 3 is a fragmentary view of the carton, in perspective, showing the closing panels in operative position, as bent on the provided score lines; 5 Fig. 4 is a fragmentary, elevational view of the carton as viewed from the right-hand side of ig. 1, showing the cover lock panels Just before final telescopic closing; Fig. 5 is a fragmentary view of the carton blank, before being erected into a carton, showing the scored panels and their outlines; and Fig. 6 is an enlarged sectional view taken on the line 6-6 looking in the direction of the arrows, Fig. 5, to better show the cut-scoring of the triangular panels.

The present carton, as in Fig. 1, is of polygonal cross-section, and as shown in the blank layout of Fig, 5, comprises a plurality of side-forming panels 2 to 7 inclusive, defined from each other by score lines A to E inclusive, and a glue flap 8, defined from panel 7 by a score line F, whereby panel may be affixed to panel 2 by glueing as in Fig. 2.

Each side-forming panel has an integral coverforming panel defined therefrom by the common score line G, Fig. 5.

The side-forming panels are defined from each other by vertical score lines A to F inclusive Fig. 5, and these same score lines define the coverso forming webs and panels.

a Each cover-forming panel is defined from its a adjacent associate panel by score lines or by cut-score lines. Rectangular panel 9 has a semiStriangular web 1 defined therefrom by score line A; web IS has, cut-scored therefrom on its inside face, by cut-score a, a full triangular panSel 10, which latter panel has scored therefrom by f score line B, a'semi-triangular web IT, this latter Sweb has, cut-scored therefrom by cut-score b e on its inside face a full triangular panel 1,, this latter panel in turn has, cut-scored therefrom on its inside face by a cut-score c, a semi-triangular web 1. Web 18 is defined from rectangular lock panel 12, by score line C on its one side and lock panel I on its opposite side is defined from semi-triangular web 19, by a score line D. Web 19' s defined from triangular panel 13 by a cut-score d, on its inside face and panel 13 is defined from semi-triangular web 20 by a cut-score line e on its inside face. Web 20 is defined from triangular panel 14 by score line E and this latter panel is defined from a semi-triangular web 21 by a cut-score line I, on its inside face. Web 21 has a glue flap 15, similar to glue flap 8, defined therefrom by a score line F. When the carton is glued to assembly, flap I5 is attached to the inside face of panel 9, as at Fig. 3.

When the carton is glue-assembled, it can be collapsed flat on its opposing score lines B and E, and is so-shipped to the consumer in bundles. SAll cut-score lines defining the cover-forming panels and webs from each other are all located on the inside faces of the walls forming the cover panels, when the carton is erected. The reason for this is that each of the panels so cutscored, are bent on the cut-score lines in a direction reverse to those of the scored lined panels, with their outer faces adjacent to one another, when they lie in covering, superposed relation to each other, on the carton. The cut joint afforded by the cut-scores predisposes the inwardly drawn triangular panels to automatically take their respective closing positions relative to the web-like, semi-triangular panels 16 to 21 inclusive. In effect, panels 9 to 14 are closure panels while the semi-tringular panels 16 to 21 inclusive act as webs between the closure panels, so that In the act of closing the panels as in ig. 3, the webs draw the closure panels into orderly, closing relation to one another. In cut-scoring the web panels from their associate panels, as described, the cut-scores, as at c and b, Fig. 6, are cut deeply into the paper board nearly to the outside liner I thereof. Thus the cut-score lines, as described are weakened and dispose the so defined panels to readily break into desired conformity and thereafter permit the folded panels to lie closely together, when in carton-closing positioh.

It will be noted that, withthe exception of 10 5 that panels 12, 18 and 19, are a little shorter than panels 9 and 21, and that panels 10, 11, 13, 14, 17 and 20 are shorter than panels 12, 18 and 19. This is because, as the panels are so scored, and thus disposed to automatically and sequen10 tially assume their related positions in a fixed sequence, as will now be explained.

In closing the webbed cover over the carton, with the panel 5 facing the user, the panels 10 and 14, are simultaneously bent on their score lines B and E respectively to bring the web panels I1 and 20, respectively flat against said panels 10 nd 14. This is done by pinching the panels 10 ,nd 14 against panels I1 and 20, this operation being shown, partly completed in Fig. 3. After bringing panels 10-14, I1 and 20 together, they are, both simultaneously, swung downwardly towards the closing position, on score lines b and e, and thus, reversely, or inwardly folding the panels II and 13. .Thisaction draws in webs 18 and 19 and with them inner closure panel 12. This action, further, draws in webs IS and 21, and with it top, outer closure panel 9.

Further downward movement of panels 10 and 14 brings the ends of inner shorter and narrower closure panel 12 and its associate webs 18 and 19 into the opening formed by the folded outer, longer and wider closure panel 9 and its associate webs 16 and 21, about as indicated in Fig. 4, until finally, the outer rounded ends of the folded panel 12 and webs 18, 19 telescopically pass into the interior of the folded outer longer closure panel 9 and its associate webs 16 and 19; a final pressure completes the closing of the carton, which remains closed due to the telescopic lock of thE closure panels 9 and 12 and their associate webs as illustrated in Fig. 2. Thus, the rounded corners of the panels permit of srhooth infoldinri of the panels in closing the same over the carton When the carton is thus closed, it is proc against accidental opening because all of the co acting webs and panels are overlaid by portion of the associate panels, and are all locked in thi position by the telescopic lock of the cover panel 9 and 12.

To reopen the carton, the side edges A-I Fig. 1, of the cover panel 9 are lifted, thus draw ing up both outer cover panel 9 and inner cov panel 12, so that as they reach the positions show in Fig. 4, the entire cover is instantly released ar opened up to the full area of the carton interio What I claim is: 1. A hexagonal carton of foldable materi comprising six integral side-forming panels cox nected to form a body by a glue flap, two oppoa ing side panels of said body having substantial rectangular closing panels foldably attachi thereto, a second pair of opposing side pane having a triangular panel and triangular we foldably connected together and a third set opposing side panels having a substantially ti angular panel and web foldably connected ther to, one of said last webs having a glue flap.

2. A single blank of foldable material for fori ing a hexagonal carton, comprising a body p( ;0 tion having six sides and a glue flap, for for ing the six sides of the carton, said sides a flap being defined from one another by body sc lines, and a plurality of infolding cover-formj and end-closing webs; panels and a cover g flap, said webs and panel being defined from s: panels 8, I I and !3, the panels all have rounded outer ends. It will be further noted that panels 9 and 21 are longer, from the score line G, than .... • ÷ nhr uanels; it will further be.noted side-forming panels by a common score line, one of the terminal body panels having a substantially rectangular cover panel, the next adjacent body panel having a substantially triangular cover panel and web thereon, the next adjacent o body panel having two substantially triangular webs and one practically triangular panel thereon, the next adjacent body panel having a substantially rectangular cover panel thereon, the next adjacent body panel having two substantially triangular webs and one triangular cover panel thereon, the next adjacent body panel having a substantially triangular cover panel and web thereon, said cover glue flap being on said lastnoted web, all of said latter webs, panels and flap being defined from one another by scoring.

3. A single blank of foldable material for forming a hexagonal carton, comprising a body portion having six sides and a glue flap, for forming the sides of the carton, said sides and flap being defined from one anotherby body score lines, and a plurality of infolding cover-forming and endclosing webs and panels and a cover glue flap, said webs and panels being defined from said sideforming panels by a common score line, one of the terminal body panels having a substantially rectangular cover panel, the next adjacent body panel having a substantially triangular cover panel and web thereon, the next adjacent body panel having two substantially triangular webs and one practically triangular panel thereon, the next adjacent-body panel having a substantially rectangular cover panel thereon, the next adjacent body panel having two substantially triangular webs and one triangular cover panel thereon, the next adjacent body panel having a substantially triangular cover panel and web thereon, said cover glue flap being on said lastnoted web, all of said webs and panels being defined from one another by scoring, the scoring between all of said webs and their associate cover g panels being cut scores.

4. A carton formed from one blank of paperf board comprising a body having a relatively - narrow side wall, an opposed wall wider than the s first wall, two pairs of interposed side walls cons necting the narrow and wide walls; and a cons tinuous band extending from said walls at one end at; said band including foldable panels which are 50 of the interposed walls having scores therein and n being formed into foldable portions, whereby the Ld ends of the wide panel and its associated portions r. may embrace the ends of the narrow panel and 55 e a owed n the associated portions thereof. al 5. A carton formed from a blank of material - comprising a body having a narrow side wall, an s- opposed wall wider than the first wall, two pairs ly of interposed side walls connecting the narrow ed and wide walls, said body being of modified hexels agonal form, and a band extending from said bs walls at one end of the carton and closing the of latter thereat; said band including inwardly ri- folded rectangular sections which are the same 05 'e- width as the respective walls, one end of the wide section being disposed over an end of the n- narrow section, the sections of said interposed r- walls having score lines therein and being formed n- into foldable panels and webs, certain of said nd webs being continuous with the respective narore row and wide sections, so that said wide end and ing its associated webs may telescopically embrace lue said narrow end and the associated webs thereof aid in releasable holding relation. 6. A carton made from one sheet of mater which is provided with fold lines to form a bo comprising a rectangular side wall, a relativ wide opposed rectangular wall; coacting int( posed rectangular side walls; and a foldable ba: extending from said walls at one end of the ca ton for closing the latter thereat; said band i cluding sections which are the same width as t respective walls, the section of the narrow wi having rounded corners at its free end; the se tions of the interposed walls consisting of tý pering panels and webs, certain of said webs b ing extended at one of their respective sides fro the narrow and wide sections and having al round corner at their free end, so that said wic section and its associated webs when partly folc ed inwardly may form a pocket to receive tt rounded portions of the narrow section and ii associated webs, whereby to lockingly engage sal sections, the free ends of the said panels bein disposed below the narrow and wide sections.

7. A carton made from one sheet of materiE which is provided with fold lines to form a bed comprising a relatively narrow side wall, an op Posed wall wider than the first wall, coacting in terposed walls, one of said latter walls havini thereon a glue flap which is attached to said widi wall; and a band extending from said walls a one end of the carton for closing the latter there 3at; said band including also a glue flap and hav. ing sections which are the same width as thE respective walls, the section of the narrow walt having rounded corners at its free end; the sections of the interposed walls consisting of foldable anels and webs, certain of which are also provided with rounded corners at their free ends, certain of said webs being extended at one of their respective sides from the narrow and wide sections, so that the ends of said wide section and its as4U sociated webs when partly folded inwardly may receive the ends ofthe narrow sectionand its associated webs, whereby to embrace said sections in gripping relation when fully closed inwardly, the free ends of said Panels and webs being dlsposed belowsaid narrow and wide sections.

8. A closure for a carton having six rectangular integral side walls, said closure comprising a band having sixcoacting rectangul sectng e ions which extend from said walls at one end thereof, there 5ben, t ao being a fold line between said band and said walls; said sections including two Pairs of inwardly foldable members, said members being provided with fold lines and having dimensions Stransversely of the band which are approximately equal to the greater radius of the carton, said later fold lines defining Panels and webs in said members; and two opposed inwardly foldable members disposed between said pairs of mem60 bers and having dimensions which are greater than said radius, whereby when the last-mentioned members are folded inwardly their ends may overlap, so as to cover the ends of the firstmentioned members.

9. A blank of material for forming a carton including a body having six side walls, and an end closure comprising a band having two plain inwardly foldable sections, and two pairs of interposed sections, said sections being extended from said walls and having scores or fold lines therebetween, there also being fold lines between said walls and said sections, and fold lines between 'al the respective walls, said latter lines being linear edy with the lines between said sections, and the ely blank being bendable on said lines; and oblique !r- cut scores formed on or struck into the inner faces nd of said interposed sections so as to facilitate bendr- ing the material thereat, whereby said interposed n- sections may be partly overlapped in substantially he flat portions partly below or inwardly of said ill plain sections.

c- 10. The herein described blank of material for f1 a- forming a carton including a body having six side e- walls, and an end closure comprising a band havm ing two plain inwardly foldable sections and two so pairs of interposed sections, there being fold lines de in the blank whereby .to render said walls and I- said sections individually bendable; said interle posed sections having oblique cut scores in their ts inner faces, whereby said interposed sections may d be partly overlapped in substantially fiat portions g or members partly below or inwardly of said plain sections.

l 11. A closure for a carton having six integral y side walls, said closure comprising a band having - sections continuous with said walls at one end - of the carton, there being a fold line between g said band and the walls; said sections including e two pairs of inwardly foldable members which Sare of less length dimensions transversely of the Sband than the greater radius of the carton, said - members including foldable panels and webs; and0 two opposed practically rectangular !members l disposed between the respective pairs of members, one of said rectangular members having a length dimension greater than that of said radius, said latter length dimension being also greater than that of the opposite rectangular member, the longer rectangular member having its end overlapping the end of the other rectangular member, whereby the overlapped ends may cover the ends of said pairs of members. 4 12. A carton formed from an integral blank of foldable material comprising a hexagonal body including six side panels having" continuous therewith at one end of the carton coacting sections which form a band, said band Providing an end closure, substantially as described.

13. A polygonal sided container comprising a single sheet of material having weakened lines to provide side folds and twice the number of end folds as side folds, two of the end folds at opposite sides being longer than one half the diameter of the container to form locking end folds,, triangular pocket forming folds connected with opposite sides of one locking fold, triangular 5 closing folds connected with the pocket forming folds and foldable beneath them, triangular folds connected with said triangular closing folds and foldable over them, closing end folds having a straight side connected with said last named tri- (0 angular folds and having their opposite side converging outwardly, and triangular folds connected with said converging sides and with the other locking end fold, the inward folding of said folds having a straight and converging side causing the infolding of the triangular folds connected with the locking folds so that one locking end fold and its triangular folds will enter the pocket formed by the other locking end fold and the triangular pocket-forming folds connected with it.

HARRY ROSSI.