US2881967A - Reclosable dispensing carton - Google Patents

Description

April 14, 1959 w. A. RINGLER 2,

RECLOSABLE DISPENSING CARTON Filed April 7, 1958 INVENTOR. #4 14M 14. fi VG'LE W zw RTT'OQNEYS.

United States Patent RECLOSABLE DISPENSING CARTON William A." Ringler, 'Wayne, "-Pa.,- assignorto Diamond Gardner -Corporation,"= Middletowm' Ohio, a- I corporation'of Ohio Application April 7, 1958, Serial No; 726,866

16 'Glaimse (C12229- 17) This invention relates to paper cartons-and more par- 1- tioularly to a reclosable-dispensing carton having an" integral liftable part which, when raised;--provides-- a dis- "pensing' opening for the contents 'of the carton.

A; principal object 'of the inventiorr-isthe provision of aone-piece carton structure' having a tubular -body-and seabend flaps which may be erectedandsecured in conventional-fashion, the'structure incorporating-as apart thereof a'hinged cover-member"which,=when separated from the remainder of the carton, provides a reclosable dispensingopening.

*Aiurtherobject of the invention is theprovision of 'an integral friction -lock' by means-"of which the liftable *cover majr he -maintained in closed position subsequent "toits initial-'separationfrorn the carton.

Still a further object of 'theinvention is'theprovision of areclosable dispensing car-tonin-which al-iftable cover r member is 'formed in part from the top closure of'thercaritoir and in-part from-three contiguous body walls," the body wan parts being- --separ able'-from the remainder of thebody walls along lines for -severance,athe structure including aninner liner forming part which lines the carton Figure 7 is a verticaltsectionalwiew similar to Eigure. 6 but illustrating ,-the manner in.,-which:=the;-parts separate when'th'e cover istraised.

Referring first toFigure, 1lof-"thendrawingsn'Lhave therein illustrated a one-piecetpaperboard.blank:cutuand scored to provide .bodywall-s 1,: 2,2 3:;and" 4 -in'.a1ticulation in the order. named, the. wall. 41 having a glue fiapi 5 con- --trated,'the1 flaps 7 and. 8,:are of fullwidth. so :as to overlap throughout substantially.- theirrentire extent in the erected structure zalthough, itwill be; ;understood thattheewidth -of the flaps may be. reduced to provide. anfeconomyt seal in which 1 only their outer portions overlap to providea glue seam extending tcentrallyaof-the top iclosure. "F'Lhe body wall 3 is provided at its. uperendtwith a:pair.*of.fiap parts. 9 and 10, theflapzpart' 9..being .hingedlyoonnected to' the upper edgetof: the .body wall 3 with the, fiap. part.-:10 20.

articulated to' theflap' 9.;along atline forseverance': 11. This: linemay. taken; the. form. 'of a line fOf cut tbrokenrby several IIZTIOW connecting.- portions: "12 1 serving to connectv the two flaps together. 'A rirn: forming extension 113 is connected to the .outeredge offiap part110, the-exten- 'sioncomprising a central portion 14.:1ying-.inprolongation of the flap parts 9 and 10',-andwingportions Hand .16

which are hingedly connectedto'thetopposite side edges of =the central portion,14 and- overliethe olosure fiaps 7 and 8.

" The body walls 2, 3 .and- 4 are'providedwith lines for t severance 17; -18 and 19;-respective1y and the end closure j' -body walls throughout the areas which have been removed to-form-the' liita-ble cover,- the linen forming part defining a rirn portion:over-rwhich'uthe cover part is fitted when it bisreturned toclos'ed position.

Yet a' tur-ther objectofatheinvention is theaprovision of a dispensing -carton b-f the character described wherein the liftable cover part isufrictionallyretainedwin closed "-pos'ition-byameans 0f. a= reversely folded flap bin-godly. connect'ed to the upper edge ofi'the liner torming. partn the said flap beinginitially connected to a second :flap forming a' pottion ot the liftable cover, thevtwoi tfiapstbeing rauto matically severa ble -upon-initial openingxofsthecarton.

llh foregoing: togetherwithether: objects f the invention which will appear hereinafter or:which: will be apparent tothe skillied worker in" the art-upon reading-these =spee'ifioationsj I accomplish :byithat:constructionrand arrangement ofparts of which I? shall now describe-antex- *emplary embodiment.

E R'eferenceisnow :made torthe :accompanying drawings I 'wherein:

Figure l- -is afragmentary: plan view. of a. carton blank b infolded.

Figure 2:is a fragmentarytperspectivetviewiofthezupper r: dbfi the':erectedrcartonillustrating:themannenin which tithe-top closure. is formed.

,Figure' 3tis a;fragmentary!tperspective-yiew similar to fa -Figure 2 but illustratingnthetparts:in:folded {andglued .woondition.

Figures 4 and Stare fragmentary perspectiveviews simiztztwooflap parts arezseparatedxtand:thezonenreverselv folded o'tormafriotion lock. :Figure Gris; avwerticaltsectional'tyiemtaken.talnngzithe lines 6-6 of Figure 3.

" -the innerend of which meets theend of linefor. severance 19.'--In apreferred embodiment, the 'line 17, 19=and=a21 arelines of perforation,-whereas-the line ifimay be acut -able bottomolosureflaps which maybe folded and glued inconventional fashion.

' In the erection and -assembly of the structure, -the -rirn --forming extension 13-will be first-t-infolded to thmposition ill-ustrated in dotted line -inFigure 1, a ;striperof ad *hesive' '22- being first applied:.to :theouter edge ofi ltthe -extension,--whereupon it is infolded-walong- :ihe eline for -servance 11, thereby juxtaposing a the- .central portion 14- to body wall 3, with -wing'portions 15 :and .161 juxtaposed to body walls 2 and 4;-respectively.""Thewdimensiom'ng-of-the parts is such that the: glue stripe 22 will lie beyond the -lines-for severance"17; 18 and 19,- aswill -be apparent from the drawings, and the-width of :the: flaps 9 and '10 is such that theedges"23ofi wing portions 15 and 16 will be spaced inwardly' with respect-to -thel lines of articulation connecting theend'closurfiaps 7 and 8 to their respective body walls": The amount ofispacing in- =volved is simply-enough-to clear thelines of articulation -between-the body walls'and-end'closure fiaps-so' thatvthe end closure fiaps may. be freely'infolded: without inter- @ference from the extension It will be noted also" that-the length of the extension is such: that the outerends ofwthe ---wing portions 15-and"16=:extend beyond theoutermost -ends'of the lines for severance17 and- 19; and similarly,

. the width of theextension is such'.thatnthezpartsoextend for severance.

j; Subsequent toj:the, infolding; ,andadhesive attaqhrnent carton blank will be tubed in conventional manner, with flap 5, whereupon the tubular body will be erected and the end closure flaps infolded and secured together.

As seen in Figure 2, the formation of the top end closure is efiected by infolding the juxtaposed flaps 9 and with the application of adhesive to the upper surface of flap 9, such adhesive being indicated at 24, whereupon the end closure flaps 7 and 8 are infolded with the interposition of adhesive therebetween. 7 which contains the score line 21 will lie outermost so that the liftable cover member will be hinged to the outermost part making up the end closure. While the liftable part also folds along the line 21, I prefer to cutscore or perforate the line 21 to facilitate the folding of the cover part. It will be understood, of course, that the lines 20 and 21 coincide in the assembled structure. Upon being folded and glued, the top closure assumes the condition illustrated in Figure 3. The contents will Preferably the flap have, of course, been placed within the container prior to the sealing of one of the end closures.

, In the hands of the user, the liftable cover part, which is designated by the reference numeral 25, will be separated from the remainder of the carton along the lines for severance 17, 18 and 19, thereby permitting the cover part to swing upwardly in the manner illustrated, in Figure 4. At such time as the cover part is initially opened, the act of swinging the part upwardly will cause the flaps 9 and 10 to separate along the line for severance 11. As will be apparent from Figure 4, the flap 9 is secured to the inner surface of the liftable cover part whereas the flap 10 will remain articulated to the upper edge of the central portion 14 of rim forming extension 13. Thereafter, as seen in Figure 5 the flap 10 will be folded outwardly in the manner illustrated. In this position it serves both as a pouring lip for the contents and, when the cover part is reclosed to fit over the exposed areas of the rim forming extension, the reversely folded flap serves a friction lock acting to maintain the cover part in tightly closed condition. In this connection, and as best seen in Figure 7, the width of flap 10 will be substantially equal to or slightly less than the width of the front wall 311 of the cover part.

The arrangement just described provides an eco-- nomical and easy to make one-piece reclosable carton. At the same time, the construction provides an integral friction lock which will maintain the reclosable cover in the closed position. Without such lock the natural resiliency of the board tends to partially open the cover,

thereby exposing the contents and permitting it to readily spill from the carton should the carton be tipped over.

Modifications may be made in my invention without departing from the spirit of it and, consequently, I do not intend to be limited excepting in the manner set forth .in the claims which follow.

.formed from contiguous portions of three body walls of said carton, said depending wall portions being defined by lines for severance by means of which said cover part may be separated from the remainder of said body walls and folded upwardly along the line of hinged connection to said end closure, a rim forming extension secured to the inner surfaces of said three body walls immediately below the lines for severance therein, with portions of said extension projecting upwardly beyond the said lines for severance and juxtaposed to the inner surfaces of the depending wall portions of said cover part when said cover part is in the closed position, a first flap member articulated to the upper edge of said extension, and a second flap member connected to said first flap member alon a line for. severance, said second flap member being secured to said liftable cover part, said two flap members being separable along their said line for severance when said cover part is initially opened, said first flap member, upon being separated, defining a cover securing flap which, when reversely folded to overlie the outer surface of said extension, provides a friction locking element for securing said cover part in closed position.

2. The structure claimed in claim 1 wherein said extension is formed as an integral part of the carton blank from which said carton is formed, and wherein said extension is of substantially lesser depth than the carton body walls to which it is secured.

3. The structure claimed in claim 2 wherein said end closure includes an opposed pair of closure flaps secured together in overlapping relationship, said closure fiaps having coinciding, transversely disposed hinge lines therein defining the hinge line connecting said cover part to said end closure.

4. The structure claimed in claim 3 wherein the hinge line in the underlying one of said closure flaps comprises a line of perforation, and wherein the hinge line in the outermost of said closure flaps comprises a scoreline.

5. The structure claimed in claim 4 wherein said second flap member is adhesively secured to the inner surface of said underlying closure flap.

6. In a blank for a one-piece reclosable dispensing carton, four body walls in side-by-side articulation, end closure flaps articulated to the upper edges of the first, second, and fourth body walls, a first flap member articulated to the upper edge of said third body wall, and a second flap member detachably secured to the outer side edge of said first flap member, said two flap members havinga combined width substantially equal to the width of said first named closure flaps, a rim forming extension articulated to the outer edge of said second flap member, said extension comprising a central portion lying in prolongation of said flap members, and wing portions articulated to opposite sides of said central portion, said wing portions overlying the end closure flaps secured to said second and fourth body walls, diagonally disposed lines for severance in said second and fourth body walls, said lines for severance having their upper ends terminating at the upper edges of said second and fourth body walls and their lower ends terminating at the side edges of said third body wall at corresponding points spaced downwardly from the upper edge of said third body wall by a distance less than the width of said extension, and a line ofseparation in said third body wall extending between the lower ends of said lines for severance.

7. In a blank for a one-piece reclosable dispensing carton, four body walls in-side-by-side articulation, end closure flaps articulated to the upper edges of said first, second, and fourth body walls, a first flap member articulated to the upper edge of said third body waH, and a second flap member detachably secured to the outer side edge of said first flap member, said two flap members having a combined width at least as great as the width of the adjacent portions of the closure flaps articulated to said second and fourth body walls, a rim forming extension articulated to the outer edges of said second flap member, said extension having a central portion having a width substantially equal to the width of said third body wall, and wing portions articulated to the opposite side edges of said central portion and lying beyond the closure flaps articulated to said second and fourth body walls, diagonally disposed lines of separation in said second and fourth body walls extending between the upper edges of said body walls and the opposite side edges of said third body wall, said lines of separation contacting the upper edges of said second and fourth body wall at corresponding points intermediate the ends thereof and contacting the opposite side edges of said third body wall at corresponding points spaced downwardly from the upper edges of said third body wall by a distance at least as great as the width of said first flap member, and hinge lines in the end closure flaps articulated to said second and fourth body walls, said hinge lines extending transversely across the said closure flaps from the ends of the lines for severance in said second and fourth body walls.

8. The carton blank claimed in claim 7 wherein one of said last named hinge lines comprises a scoreline and wherein the other of said hinge lines comprises a line of perforation.

9. The blank claimed in claim 8 wherein the opposite ends of said extension extend outwardly beyond the hinge lines in said closure flaps, and wherein the width of said extension is in excess of the width of said first flap member.

10. In a knocked-down one-piece reclosable dispensing carton, four body walls in side-by-side articulation, end closure flaps articulated to the upper edges of the first, second and fourth body walls, a first flap member articulated to the upper edge of said third body Wall, and a sec- 0nd flap member detachably secured to the outer side edge of said first flap member, said two flap members having a combined Width at least as great as the widths of the closure flaps articulated to said second and fourth body walls, an extension articulated to the outer edge of said second flap member, said extension comprising a central portion of a length substantially equal to the width of said third body wall, and wing portions articulated to the opposite sides of said central portion, said second flap member lying in infolded condition so as to overlie said first flap member, with the central portion of said extension juxtaposed to the inner surface of said third body wall and said wing portions juxtaposed to underlying portions of said second and fourth body walls, a line of separation extending between the opposite side edges of said third body wall, said line of separation underlying the central portion of said extension, diagonally disposed lines of separation in said second and fourth body walls extending from the ends of said first named line of separation to corresponding points along the upper edges of said second and fourth body walls, the wing portions of said extension being of a size to overlie and cover said diagonally disposed lines of separation, said extension being secured to portions of the carton body walls contacted thereby in areas thereof lying inwardly beyond the said lines of separation.

11. The structure claimed in claim 10 wherein the uppermost edges of said wing portions are spaced inwardly from the lines of articulation between said secend and fourth body walls and the closure flaps connected thereto by a distance suflicient to permit the said closure flaps to be infolded without observation by said wing portion.

12. In a reclosable dispensing carton, a tubular body, an end closure at one end of said body having a liftable cover part, said cover part comprising a top wall defined by an end portion of said end closure separated from the remainder of said end closure by a hinge line extending between opposite side edges of said end closure, and depending wall part formed from adjacent wall areas of the carton body walls contiguous the hinged end of said end closure, said depending wall parts being defined by lines of separation in the said carton body walls, the lines of separation in an opposite pair of said body walls terminating at the ends of the hinge line in said end closure, a rim forming member juxtaposed to the inner surfaces of the carton body walls and positioned to overlie said lines of separation, said rim forming member being secured to the inner surfaces of said body walls below said lines of separation and projecting upwardly therebeyond toward the hinged end of said end closure, a locking flap hingedly connected to the upper edge of said rim forming member, said locking flap being foldable outwardly to overlie the outer surface of said rim forming member subsequent to initial opening of said cover part, whereby to provide a friction lock for retaining said cover part in reclosed position.

13. The structure claimed in claim 12 wherein said locking flap, in the initially closed carton structure, is detachably secured to a second flap member secured to the undersurface of the liftable portion of said endclosure.

14. In a reclosable dispensing carton, a side wall, an end wall, and a side wall in articulation, a first flap member hingedly connected to the upper edge of said end wall, end closure flaps hingedly connected to the upper edges of said side walls, said first flap member and said closure flaps lying in infolded condition with said first flap member innermost and adhesively secured to the inner surface of one at least of said closure flaps, a second flap member detachably connected to said first flap member, and a rim-forming extension connected to said second flap, said rim forming extension being juxtaposed to the inner surfaces of said side and end walls and projecting downwardly from the upper edges thereof, a line of separation extending between the opposite side edges of said end wall and spaced downwardly from the upper edge thereof, lines for separation in said side walls extending from the ends of said first named line of separation upwardly to corresponding points at the upper edges of said side walls, said rim forming member being of a size to project downwardly below said lines for severance and being secured to the inner surfaces of said side and end walls in areas below said lines of severance, whereby to provide a liftable cover part separable from said carton along said lines of separation, said second flap member being adapted to separate from said first flap member upon initial lifting of said cover part and thereafter foldable outwardly relative to said rim forming member to provide a friction locking element engageable by said liftable cover part upon reclosure thereof.

15. The structure claimed in claim 14 wherein said rim forming member has a central portion juxtaposed to the inner surface of said end wall, and wing portions juxtaposed to the inner surfaces of said walls, and wherein said second flap member is connected to the upper edge of the central portion of said rim-forming member.

16. The carton structure claimed in claim 15 wherein said second flap member is of a width no greater than the distance between the upper edge of said end wall and the line of separation therein.

References Cited in the file of this patent UNITED STATES PATENTS

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