CA1042399A - Tamperproof reclosable carton - Google Patents
Tamperproof reclosable cartonInfo
- Publication number
- CA1042399A CA1042399A CA210,253A CA210253A CA1042399A CA 1042399 A CA1042399 A CA 1042399A CA 210253 A CA210253 A CA 210253A CA 1042399 A CA1042399 A CA 1042399A
- Authority
- CA
- Canada
- Prior art keywords
- panel
- edge
- locking
- cover
- tab
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/64—Lids
- B65D5/66—Hinged lids
- B65D5/6602—Hinged lids formed by folding one or more extensions hinged to the upper edge of a tubular container body
- B65D5/6608—Hinged lids formed by folding one or more extensions hinged to the upper edge of a tubular container body the lid being held in closed position by self-locking integral flaps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing
- B65D5/5405—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form
- B65D5/542—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form the lines of weakness being provided in the container body
- B65D5/5425—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form the lines of weakness being provided in the container body and defining after rupture a lid hinged to the upper edge of the container body
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S206/00—Special receptacle or package
- Y10S206/807—Tamper proof
Abstract
ABSTRACT OF THE DISCLOSURE
A tamperproof, reclosable carton having cover relocking elements in edge to edge abutment along acutely angled edges which result in a wedge type cover lock.
A tamperproof, reclosable carton having cover relocking elements in edge to edge abutment along acutely angled edges which result in a wedge type cover lock.
Description
`` 10~2;~99 BACKGROUND OF THE INVENTION
This invention relates to a tamperproof carbon construc-tion with a locking reclosure feature, formed from a single paper-board blank. The carton is formed with a receptacle portion and a cover portion having downwardly extending skirt portions which telescope over the upper receptacle side and front walls when the carton is closed. The skirted cover portion is originally adhered to a break-away extension panel detachably hinged to a receptacle , wall, thus providing a tamperproof closure to the carton, and the cover corner glue flaps engage with additional receptacle wall ex-tension flaps to provide a particularly effective relocking means once the carton has been opened and reclosed.
It is, therefore, an object of this invention to provide a tamperproof, reclosable carton produced from a single blank and provided with a positive and unique cover locking reclosure means.
It is a further object, as will be more fully developed hereinafter, to provide a tamperproof, reclosable carton with a - unique locking reclosure which can readily be set up, filled and sealed by automatic machinery.
SU~MARY OF THE INVENTION
The above and other objects are realized in the carton of this invention wherein tamperproofness is achieved by a sealing tab attached along a detachable line of weakness to the upper edge of the front receptacle wall and adhered to the inner front cover panel and includes a particularly effective cover relocking means wherein a wedging action occurs between acutely angled side edges of locking tabs and complementary angled edge portions of the sealing tab and the cover front corner glue flaps.
- BRIEF DESCRIPTION OF THE DRAWING
! 30 Further details, advantages and objects will be apparent in the description of the drawings wherein:
Figure 1 is a plan view of a paperboard carton blank :
., .
1~4Z399 comprising a preferred embodiment of this invention, Figure 2 is a perspective view of the carton partially set up, Figure 3 is a fragmentary perspective view of the carton at one stage during the closing and sealing procedure, Figure 4 is a fragmentary perspective view of the sealed carton, certain unexposed panel elements being shown in phantom line, ` Figure 5 is a cross-sectional view along line 5-5 of ~igure 4, Figure 6 is a cross-sectional view along line 6-6 of Figure 4, Figure 7 is a cross-sectional view along the same line as Figure 5, but with the carton partly opened, Figure 8 is a cross-sectional view along the same line as Figure 6 but with the carton partly opened, and Figure 9 is a fragmentary perspective view of the carton in fully open condition.
~ ~ - DESCRIPTION OF THE PREFERRED EMBODIMENT
; ~ The carton of this invention is formed of a blank of , paperboar~ or similar material suitably cut and scored as shown in Figure 1 to provide a pair of opposedend wall panels 12 and 14, a front wall panel 16, a back wall panel 18 and a manufacturer's glue panel 20, hlngedly joined in sequence along parallel score lines 21, 23, 25 and 27. Hingedly depending from the lower edge of said receptacle end, front and rear wall panels are bottom closure panels 22, 24, 26 and 28, respectively.
Top cover panel 40 is hingedly connected at its rear edge along score line 41 to the upper edge of receptacle rear wall panel 18. Top cover panel 40 is also hinged at its front edge along score line 43 to front cover panel 42 and at its side edges along score lines 45 and 47 to end cover panels 44 and 46, respectively.
End cover panels 44 and 46 have cover front corner glue flaps 48 1~4Z399 and 50 hingPdly connected to their respective front edges along score lines 49 and 51.
Finally, locking tabs 52 and 54 and sealing tab 56 are hingedly connected to the upper edge of receptacle front wall panel 16. The hinge line connecting sealing tab 56 to panel 16 is a severable line of weakness 55, and the locking tabs 52 and 54, which flank the sealing tab 56, are attached to front wall panel 16 along hinge lines 55a, which are extensions of weakness lines 55. Since the size, shape and positioning of these locking and sealing tabs are of importance in the proper functioning of the carton of this invention in each of the sealing, opening and reclosing operations relating thereto, these features of the con-struction will be described in greater detail hereinafter.
In forming the carton of this invention from the blank hereinbefore described, a suitable adhesive 60 is first applied to the area adjacent to the free edge of end wall panel 12 or, alter-natively, to the manufacturer's glue flap panel 20, after which the blank is folded to bring these areas into superposition, all in accordance with long established procedures. Similarly, adhesive is applied in known manner to some or all of the bottom closure panels 22, 24, 26 and 28 which are then infolded into superposed, adhered relationship, forming a bottom structure of conventional construction.
; After folding locking tabs 52 and 54, and sealing tab 56 outward to lie superposed on the upper portion of the outer surface of front wall panel 16, the partially erected carton appears as shown in ~igure 2, in which positlon the carton may be filled with product and prepared for closure and sealing. Adhesive area 62 is indicated adjacent the remote free edge of front cover panel 42 in ~- 30 Figure 1, 2 and 3. This adhesive may be of the same composition as t that indicated at 60 and may be applied in the same adhesive-applying operation, or may be of differing composition and applied ~ 4Z399 in a separate operation. A heat-seal adhesive composition is of particular utility in the area 62.
The final steps in the closure and sealing of the filled ~; carton are illustrated in Figures 3 and 4. The top cover panel 40 is folded about score line 41 to overlie and close the top opening of the receptacle, end cover panels 44 and 46 are folded about score lines 45 and 47, respectively, to lie superposed on end wall ; -panels 14 and 12, respectively, and cover front corner glue flaps 48 and 50 are hinged about score lines 49 and 51 to lie superposed ~: 10 on portions of receptacle front wall panel 16 adjacent to the areas of said front panel on which the locking tabs 52 and 54 lie super-posed.
Finally, front cover panel 42 is folded about score lines 43 to lie superposed on the surfaces of the locking tabs 52 and 54, : ~ the cover front corner glue flaps 48 and 50, and the sealing tab 56, .: which are thereby sandwiched between the inner surface of the front .~ cover panel 42 and the outer surface of the receptacle front wall panel 16. The pattern of adhesive 62 is such that the front cover panel 42 is adhered to both the cover front corner glue flaps 48 and ; 20 50, and the sealing tab 56, but not to the locking tabs 52 and 54.
. As best seen in Figure 3 and in phantom line in Figure 4, the edges of the cover front corner glue flaps 48 and 50 dovetail i~ snugly with the side and bottom edges of locking tabs 52 and 54 and . with a portion of the side edges of sealing tab 56, all of said flaps and tabs lying in a common plane between the outer surface of recep-tacle front wall panel 16 and front cover panel 42. r Since the cover assembly of the carton is adhered to the sealing tab 56, which is an integral part of the receptacle portion of the overall carton, the carton cannot be opened without rupturing the weakness line 55 by which the sealing tab 56 is attached to the front wall panel 16. This rupturable connection thus constitutes the tamperproof feature of the carton previously mentioned and, since r ~ 4 -~; .
1~4'~399 the weakness line 55 is at the point of junction between the upper edge of the receptacle front wall panel 16 and the sealing tab 56 and there is no other line of weakness in the sealing tab, there is no tendency for the opening feature to malfunction through folding or buckling of the sealing tab along any horizontal line between the area of its adhesive attachement to the inside of the front cover panel 42 and the desired line of severance 55.
In opening the sealed carton, force applied outward and upward along the bottom edge of the front cover panel 42 results in rupture of the weakness line 55 by which the sealing tab 56 is attached to the receptacle front wall panel 16. Locking tabs 52 and 54, however, remain hingedly attached to the front wall panel 16 and upon reclosure of the carton, the sealing tab 56 and the corner glue flaps 48 and 50 resume their co-planar relationship with the locking tabs 52 and 54 with the free edges of the various flaps and tabs in locking abutment with each other. In this connection, the shape of the locking tabs 52 and 54 is of significance in the satisfactory operation of the relocking feature of this carton. Each locking tab (52, 54) has a free edge 70 remote from and generally parallel to the hinge line 55a which connects the tab with front wall panel 16.
Each locking tab (52, 54) also has two angled edges 72 and 74, each of which forms an acute angle with the hinge line 55a. Each locking tab thus has the shape of an isosceles trapezoid, or a semi-hexagon.
The angled edge 74, on each locking tab, is formed by the cut line separating the locking tab from sealing tab 56, which therefore has an edge 76 complementary to edge 74 on the locking tab. Since locking tab edge 74 and sealing tab edge 76 lie in the same plane and are in edge to edge abutment throughout their respective lengths they serve as locking elements for the cover reclosure, the locking action effectively preventing upward motion of the cover by virtue of wedging the sealing tab tightly between the upwardly converging edges 74 of the two locking tabs. The cover may be lifted only by 1~114Z399 applying force both outwardly and upwardly to move the sealing tab out of the plane of the locking tabs and so disengage the edges 76 thereof from edge to edge engagement with edges 74 of the locking tabs. It will be apparent that the locking means hereinbefore described will be effective only if the angle between the locking . tab edges 74 and the hinge line 55a is less than 90, so that the sealing tab is subjected to a wedging action if an attempt is made ` to ralse the cover while edges 74 and 76 are in a common plane.
In addition to the locking means previously described, further and substantially equally effective cover locking means involve edge to edge abutment between edges 70 and 72 of the locking ; tabs and edges 80 and 82, respectively, of the front corner glue flaps 48 and 50. The upper edge portions 80 and 82 of the corner glue flaps 48 and 50 are shaped to dovetail with edges 7~ and 72 of the locking tabs to bring about the desired locking abutments.
Edge 72 of each locking tab, and abutting edge 82 of each corner ~ glue flap, are formed at the same acute angle to their respective ; hinge lines. Furthermore, in order that edges 70 and 80 of the locking tabs and glue flaps, respectively, shall come into a close 20 edge to edge relationship, edges 72 and 82 are of substantially equal length within the limits of manufacturing tolerances and are thus complementary to each other. Because the acutely angled edges 72 of the locking tabs 52 and 54 at opposite front corners of the carton are equal in angIe and oppositely directed, the cover front corner glue flap edges 82, which are complementary therewith, are subjected to a wedging action if upwardly directed force is applied to the cover when the locking tabs and glue flaps are in the same ~-~ plane.
The carton construction of this invention thus incorporates three sets of cover relocking elements, any one of which sets would serve adequately to lock the carton cover on reclosure but which, ~ in combination of two or more sets, serve as a very superior locking ; - 6 -`` 1~14Z399 construction. In summary, the three sets of edge to edge locking elements are (1) the angled edges 74 of locking tabs 52 and 54 which abut the complementary angled edges 76 of the sealing tab 56 in the reclosed carton, (2) angled edges 72 of locking tabs 52 ; and 54 which abut the complementary angled edge portions 82 of corner glue flaps 48 and 50, and finally, free remote edges 70 of locking tabs 52 and 54 which are, in the reclosed carton, in edge to edge locking abutment with edge portions 80 of glue flaps 48 and 50.
It will be evident from the above description that the carton of this invention provides a tamperproof structure with uniquely effective cover relocking means which include edge to edge ~: abutment of acutely angled-edges of locking tabs with other carton elements lying in the same plane. It is understood that minor variations of the preferred embodiment herein disclosed may be made without departing from the spirit of the invention.
;~ .; ' .
, .
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-- . .
This invention relates to a tamperproof carbon construc-tion with a locking reclosure feature, formed from a single paper-board blank. The carton is formed with a receptacle portion and a cover portion having downwardly extending skirt portions which telescope over the upper receptacle side and front walls when the carton is closed. The skirted cover portion is originally adhered to a break-away extension panel detachably hinged to a receptacle , wall, thus providing a tamperproof closure to the carton, and the cover corner glue flaps engage with additional receptacle wall ex-tension flaps to provide a particularly effective relocking means once the carton has been opened and reclosed.
It is, therefore, an object of this invention to provide a tamperproof, reclosable carton produced from a single blank and provided with a positive and unique cover locking reclosure means.
It is a further object, as will be more fully developed hereinafter, to provide a tamperproof, reclosable carton with a - unique locking reclosure which can readily be set up, filled and sealed by automatic machinery.
SU~MARY OF THE INVENTION
The above and other objects are realized in the carton of this invention wherein tamperproofness is achieved by a sealing tab attached along a detachable line of weakness to the upper edge of the front receptacle wall and adhered to the inner front cover panel and includes a particularly effective cover relocking means wherein a wedging action occurs between acutely angled side edges of locking tabs and complementary angled edge portions of the sealing tab and the cover front corner glue flaps.
- BRIEF DESCRIPTION OF THE DRAWING
! 30 Further details, advantages and objects will be apparent in the description of the drawings wherein:
Figure 1 is a plan view of a paperboard carton blank :
., .
1~4Z399 comprising a preferred embodiment of this invention, Figure 2 is a perspective view of the carton partially set up, Figure 3 is a fragmentary perspective view of the carton at one stage during the closing and sealing procedure, Figure 4 is a fragmentary perspective view of the sealed carton, certain unexposed panel elements being shown in phantom line, ` Figure 5 is a cross-sectional view along line 5-5 of ~igure 4, Figure 6 is a cross-sectional view along line 6-6 of Figure 4, Figure 7 is a cross-sectional view along the same line as Figure 5, but with the carton partly opened, Figure 8 is a cross-sectional view along the same line as Figure 6 but with the carton partly opened, and Figure 9 is a fragmentary perspective view of the carton in fully open condition.
~ ~ - DESCRIPTION OF THE PREFERRED EMBODIMENT
; ~ The carton of this invention is formed of a blank of , paperboar~ or similar material suitably cut and scored as shown in Figure 1 to provide a pair of opposedend wall panels 12 and 14, a front wall panel 16, a back wall panel 18 and a manufacturer's glue panel 20, hlngedly joined in sequence along parallel score lines 21, 23, 25 and 27. Hingedly depending from the lower edge of said receptacle end, front and rear wall panels are bottom closure panels 22, 24, 26 and 28, respectively.
Top cover panel 40 is hingedly connected at its rear edge along score line 41 to the upper edge of receptacle rear wall panel 18. Top cover panel 40 is also hinged at its front edge along score line 43 to front cover panel 42 and at its side edges along score lines 45 and 47 to end cover panels 44 and 46, respectively.
End cover panels 44 and 46 have cover front corner glue flaps 48 1~4Z399 and 50 hingPdly connected to their respective front edges along score lines 49 and 51.
Finally, locking tabs 52 and 54 and sealing tab 56 are hingedly connected to the upper edge of receptacle front wall panel 16. The hinge line connecting sealing tab 56 to panel 16 is a severable line of weakness 55, and the locking tabs 52 and 54, which flank the sealing tab 56, are attached to front wall panel 16 along hinge lines 55a, which are extensions of weakness lines 55. Since the size, shape and positioning of these locking and sealing tabs are of importance in the proper functioning of the carton of this invention in each of the sealing, opening and reclosing operations relating thereto, these features of the con-struction will be described in greater detail hereinafter.
In forming the carton of this invention from the blank hereinbefore described, a suitable adhesive 60 is first applied to the area adjacent to the free edge of end wall panel 12 or, alter-natively, to the manufacturer's glue flap panel 20, after which the blank is folded to bring these areas into superposition, all in accordance with long established procedures. Similarly, adhesive is applied in known manner to some or all of the bottom closure panels 22, 24, 26 and 28 which are then infolded into superposed, adhered relationship, forming a bottom structure of conventional construction.
; After folding locking tabs 52 and 54, and sealing tab 56 outward to lie superposed on the upper portion of the outer surface of front wall panel 16, the partially erected carton appears as shown in ~igure 2, in which positlon the carton may be filled with product and prepared for closure and sealing. Adhesive area 62 is indicated adjacent the remote free edge of front cover panel 42 in ~- 30 Figure 1, 2 and 3. This adhesive may be of the same composition as t that indicated at 60 and may be applied in the same adhesive-applying operation, or may be of differing composition and applied ~ 4Z399 in a separate operation. A heat-seal adhesive composition is of particular utility in the area 62.
The final steps in the closure and sealing of the filled ~; carton are illustrated in Figures 3 and 4. The top cover panel 40 is folded about score line 41 to overlie and close the top opening of the receptacle, end cover panels 44 and 46 are folded about score lines 45 and 47, respectively, to lie superposed on end wall ; -panels 14 and 12, respectively, and cover front corner glue flaps 48 and 50 are hinged about score lines 49 and 51 to lie superposed ~: 10 on portions of receptacle front wall panel 16 adjacent to the areas of said front panel on which the locking tabs 52 and 54 lie super-posed.
Finally, front cover panel 42 is folded about score lines 43 to lie superposed on the surfaces of the locking tabs 52 and 54, : ~ the cover front corner glue flaps 48 and 50, and the sealing tab 56, .: which are thereby sandwiched between the inner surface of the front .~ cover panel 42 and the outer surface of the receptacle front wall panel 16. The pattern of adhesive 62 is such that the front cover panel 42 is adhered to both the cover front corner glue flaps 48 and ; 20 50, and the sealing tab 56, but not to the locking tabs 52 and 54.
. As best seen in Figure 3 and in phantom line in Figure 4, the edges of the cover front corner glue flaps 48 and 50 dovetail i~ snugly with the side and bottom edges of locking tabs 52 and 54 and . with a portion of the side edges of sealing tab 56, all of said flaps and tabs lying in a common plane between the outer surface of recep-tacle front wall panel 16 and front cover panel 42. r Since the cover assembly of the carton is adhered to the sealing tab 56, which is an integral part of the receptacle portion of the overall carton, the carton cannot be opened without rupturing the weakness line 55 by which the sealing tab 56 is attached to the front wall panel 16. This rupturable connection thus constitutes the tamperproof feature of the carton previously mentioned and, since r ~ 4 -~; .
1~4'~399 the weakness line 55 is at the point of junction between the upper edge of the receptacle front wall panel 16 and the sealing tab 56 and there is no other line of weakness in the sealing tab, there is no tendency for the opening feature to malfunction through folding or buckling of the sealing tab along any horizontal line between the area of its adhesive attachement to the inside of the front cover panel 42 and the desired line of severance 55.
In opening the sealed carton, force applied outward and upward along the bottom edge of the front cover panel 42 results in rupture of the weakness line 55 by which the sealing tab 56 is attached to the receptacle front wall panel 16. Locking tabs 52 and 54, however, remain hingedly attached to the front wall panel 16 and upon reclosure of the carton, the sealing tab 56 and the corner glue flaps 48 and 50 resume their co-planar relationship with the locking tabs 52 and 54 with the free edges of the various flaps and tabs in locking abutment with each other. In this connection, the shape of the locking tabs 52 and 54 is of significance in the satisfactory operation of the relocking feature of this carton. Each locking tab (52, 54) has a free edge 70 remote from and generally parallel to the hinge line 55a which connects the tab with front wall panel 16.
Each locking tab (52, 54) also has two angled edges 72 and 74, each of which forms an acute angle with the hinge line 55a. Each locking tab thus has the shape of an isosceles trapezoid, or a semi-hexagon.
The angled edge 74, on each locking tab, is formed by the cut line separating the locking tab from sealing tab 56, which therefore has an edge 76 complementary to edge 74 on the locking tab. Since locking tab edge 74 and sealing tab edge 76 lie in the same plane and are in edge to edge abutment throughout their respective lengths they serve as locking elements for the cover reclosure, the locking action effectively preventing upward motion of the cover by virtue of wedging the sealing tab tightly between the upwardly converging edges 74 of the two locking tabs. The cover may be lifted only by 1~114Z399 applying force both outwardly and upwardly to move the sealing tab out of the plane of the locking tabs and so disengage the edges 76 thereof from edge to edge engagement with edges 74 of the locking tabs. It will be apparent that the locking means hereinbefore described will be effective only if the angle between the locking . tab edges 74 and the hinge line 55a is less than 90, so that the sealing tab is subjected to a wedging action if an attempt is made ` to ralse the cover while edges 74 and 76 are in a common plane.
In addition to the locking means previously described, further and substantially equally effective cover locking means involve edge to edge abutment between edges 70 and 72 of the locking ; tabs and edges 80 and 82, respectively, of the front corner glue flaps 48 and 50. The upper edge portions 80 and 82 of the corner glue flaps 48 and 50 are shaped to dovetail with edges 7~ and 72 of the locking tabs to bring about the desired locking abutments.
Edge 72 of each locking tab, and abutting edge 82 of each corner ~ glue flap, are formed at the same acute angle to their respective ; hinge lines. Furthermore, in order that edges 70 and 80 of the locking tabs and glue flaps, respectively, shall come into a close 20 edge to edge relationship, edges 72 and 82 are of substantially equal length within the limits of manufacturing tolerances and are thus complementary to each other. Because the acutely angled edges 72 of the locking tabs 52 and 54 at opposite front corners of the carton are equal in angIe and oppositely directed, the cover front corner glue flap edges 82, which are complementary therewith, are subjected to a wedging action if upwardly directed force is applied to the cover when the locking tabs and glue flaps are in the same ~-~ plane.
The carton construction of this invention thus incorporates three sets of cover relocking elements, any one of which sets would serve adequately to lock the carton cover on reclosure but which, ~ in combination of two or more sets, serve as a very superior locking ; - 6 -`` 1~14Z399 construction. In summary, the three sets of edge to edge locking elements are (1) the angled edges 74 of locking tabs 52 and 54 which abut the complementary angled edges 76 of the sealing tab 56 in the reclosed carton, (2) angled edges 72 of locking tabs 52 ; and 54 which abut the complementary angled edge portions 82 of corner glue flaps 48 and 50, and finally, free remote edges 70 of locking tabs 52 and 54 which are, in the reclosed carton, in edge to edge locking abutment with edge portions 80 of glue flaps 48 and 50.
It will be evident from the above description that the carton of this invention provides a tamperproof structure with uniquely effective cover relocking means which include edge to edge ~: abutment of acutely angled-edges of locking tabs with other carton elements lying in the same plane. It is understood that minor variations of the preferred embodiment herein disclosed may be made without departing from the spirit of the invention.
;~ .; ' .
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Claims (12)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A tamperproof reclosable carton formed of a single suitably cut and scored blank having a receptacle portion and a cover portion which telescopes over the upper edges of the recep-tacle portion, said receptacle portion comprising hingedly connected front, rear, end and bottom receptacle panels, said cover portion comprising a top cover panel hingedly connected to the upper edge of said rear panel, end cover panels and a front cover panel all hingedly connected to said top cover panel and forming skirt portions parallel and adjacent to the respective underlying receptacle panels, a sealing tab hingedly connected along a detachable line of weakness to the center portion of the upper edge of said front receptacle panel and folded outwardly along said hinge line to lie sandwiched between said front cover panel and said front receptacle panel, and sealing tab being adhesively secured to the inner surface of said front cover panel; a pair of locking tabs hingedly connected to the upper edge of said front receptacle panel in flanking relationship to said sealing panel, said locking tabs being folded about their respective hinge connections to lie sandwiched between said front cover panel and said front receptacle panel; a pair of cover front glue flaps each hingedly connected to a respective one of said end cover panels and adhesively secured to the inner surface of said front cover panel to lie sandwiched between said front receptacle panel and said front cover panel in the same plane as said sealing tab and said locking tabs; said locking tabs each having at least one side edge thereof lying at an acute angle to said hinge line between said locking tab and said front receptacle panel, said side edge being in edge to edge locking abutment with a complementary edge formed on one of said carton elements lying in the same plane as said locking tab.
2. The carton of claim 1 wherein said side edge of each of said locking tabs is complementary to a respective side edge portion of said sealing tab, being separated therefrom by a single cut line.
3. The carton of claim 1 wherein both side edges of each locking tab lie at an acute angle to the hinge line between the respective locking tab and the front receptacle panel, said sealing tab having a respective side edge portion in locking edge to edge abutment to one of said angled side edges of each respective locking tab and the other of said angled side edges of each respective locking tab being in edge to edge locking abutment with a comple-mentary angled edge portion of a respective one of said cover front glue flaps.
4. A one-piece carton blank adapted to be formed into a tamperproof carton with a reclosable cover, said blank comprising a front wall panel, a back wall panel, opposed end wall panels and a manufacturer's glue panel, hingedly connected in series along parallel score lines, bottom closure panels hingedly attached to at least some of said wall penels, a cover assembly comprising a top cover panel hingedly connected to the upper edge of said back wall panel, a front cover panel hingedly attached to said top cover panel opposite said hinge connection to said back wall panel, and a pair of end cover panels each hinged to a respective side edge of said top cover panel and a pair of cover front corner glue flaps each hinged to a respective forward edge of one of said end cover panels, a cover sealing tab hingedly attached along a separable line of weakness to the central portion of the upper edge of said front wall panel, said sealing tab being flanked on each side by a locking tab attached by a weakened hinge line to the upper edge of said front wall panel, said locking tabs each having (1) at least one side edge forming an acute angle with said front wall panel upper edge and (2) a remote edge opposite said weakened hinge line and parallel thereto at least one of said sealing tab and corner glue flaps having an edge complementary to one of said edges of said locking tabs and adapted to come into locking abutment therewith in the erected carton.
5. A carton blank according to claim 4 wherein an acute angle is formed between both of the side edges of each of said locking tabs and said front wall panel upper edge, one of said side edges on each locking tab is complementary to a respective side edge portion of said sealing tab, and the other of said side edges on each locking tab is complementary to an edge portion of a respec-tive one of said corner glue flaps.
6. A tamperproof reclosable carton formed of a single suitably cut and scored blank having a receptacle portion and a cover portion which telescopes over the upper edges of the receptacle portion, said receptacle portion comprising hingedly connected front, rear, end and bottom receptacle panels, said cover portion comprising a top cover panel hingedly connected to the upper edge of said rear panel, end cover panels and a front cover panel all hingedly connec-ted to said top cover panel and forming skirt portions parallel and adjacent to the respective underlying receptacle panels, a sealing tab hingedly connected along a detachable line of weakness to the center portion of the upper edge of said front receptacle panel and folded outwardly along said hinge line to lie sandwiched between said front cover panel and said front receptacle panel, said sealing tab being adhesively secured to the inner surface of said front cover panel; a pair of locking tabs hingedly connected to the upper edge of said front receptacle panel in flanking relationship to said sealing panel, said locking tabs being folded about their respective hinge connections to lie sandwiched between said front cover panel and said front receptacle panel; a pair of cover front glue flaps each hingedly connected to a respective one of said end cover panels and adhesively secured to the inner surface of said front cover panel to lie sandwiched between said front receptacle panel and said front cover panel in the same plane as said sealing tab and said locking tabs; said locking tabs each having at least one edge thereof in edge to edge locking abutment with a comple-mentary edge formed on said glue flap.
7. A carton of claim 6, wherein each of said locking tabs has at least one side edge thereof lying at an acute angle to said hinge line between said locking tab and said front receptacle panel.
8. A carton of claim 7, wherein said side edge is in edge to edge locking abutment with a complementary edge formed on one of said glue flap and sealing tab carton elements lying in the same plane as said locking tab.
9. The carton of claim 8, wherein said side edge of each of said locking tabs is complementary to a respective side edge portion of said sealing tab, being separated therefrom by a single cut line.
10. The carton of claim 8, wherein both side edges of each locking tab lie at an acute angle to the hinge line between the respective locking tab and the front receptacle panel, said sealing tab having a respective side edge portion in locking edge to edge abutment to one of said angled side edges of each respective locking tab and the other of said angled side edges of each respective locking tab being in edge to edge locking abutment with a comple-mentary angled edge portion of a respective one of said cover front glue flaps.
11. A one-piece carton blank adapted to be formed into a tamperproof carton with a reclosable cover, said blank comprising a front wall panel, a back wall panel, opposed end wall panels and a manufacturer's glue panel, hingedly connected in series along parallel score lines, bottom closure panels hingedly attached to at least some of said wall panels, a cover assembly comprising a top cover panel hingedly connected to the upper edge of said back wall panel, a front cover panel hingedly attached to said top cover panel opposite said hinge connection to said back wall panel, and a pair of end cover panels each hinged to a respective side edge of said top cover panel and a pair of cover front corner glue flaps each hinged to a respective forward edge of one of said end cover panels, a cover sealing tab hingedly attached along a separable line of weakness to the central portion of the upper edge of said front wall panel, said sealing tab being flanked on each side by a locking tab attached by a weakened hinged line to the upper edge of said front wall panel, said locking tabs each having (1) at least one side edge forming an acute angle with said front wall panel upper edge and (2) a remote edge opposite said weakened hinge line and parallel thereto, at least one of said sealing tab and corner glue flaps having an edge complementary to one of said edges of said locking tabs and adapted to come into locking abutment there-with in the erected carton.
12. A carton blank according to claim 11, wherein an acute angle is formed between both of the side edges of each of said locking tabs and said front wall panel upper edge, one of said side edges on each locking tab is complementary to a respec-tive side edge portion of said sealing tab, and the other of said side edges on each locking tab is complementary to an edge portion of a respective one of said corner glue flaps.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US418360A US3893614A (en) | 1973-11-23 | 1973-11-23 | Tamperproof reclosable carton |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1042399A true CA1042399A (en) | 1978-11-14 |
Family
ID=23657797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA210,253A Expired CA1042399A (en) | 1973-11-23 | 1974-09-27 | Tamperproof reclosable carton |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3893614A (en) |
| CA (1) | CA1042399A (en) |
Families Citing this family (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3967774A (en) * | 1975-05-23 | 1976-07-06 | The Procter & Gamble Company | Carton lid having easily openable, non-resealable tab |
| US4048052A (en) * | 1977-02-03 | 1977-09-13 | Hoerner Waldorf Corporation | Recloseable carton |
| US4083455A (en) * | 1977-03-16 | 1978-04-11 | Universal Folding Box Co., Inc. | Reclosable carton and blank therefor |
| US4113104A (en) * | 1977-06-09 | 1978-09-12 | American Can Company | Tamperproof reclosable carton |
| DE2833389C2 (en) * | 1978-07-29 | 1983-11-10 | Focke & Co, 2810 Verden | Cuboid pack for cigarettes, cigarillos or the like. |
| US4215783A (en) * | 1979-06-18 | 1980-08-05 | Brown Company | Carton with reclosure feature |
| US4314643A (en) * | 1980-10-27 | 1982-02-09 | Westvaco Corporation | Flip top carton |
| US4397415A (en) * | 1982-02-25 | 1983-08-09 | Ex-Cell-O Corporation | Container and blank for constructing same |
| US4865204A (en) * | 1983-01-24 | 1989-09-12 | The Procter & Gamble Company | Carton structure having easily openable compression resistant end |
| DE3636666A1 (en) * | 1986-10-28 | 1988-05-19 | Faller Kg August | FOLDING BOX |
| US5190155A (en) * | 1987-02-25 | 1993-03-02 | August Faller Kg | Tamper proof folding box |
| GB2202823B (en) * | 1987-03-24 | 1990-10-31 | Mardon Wrappings Ltd | Improvements in or relaring to containers |
| FR2658482B1 (en) * | 1990-02-20 | 1992-07-03 | Nicollet Hugues Sa | PACKAGING IN CARDBOARD, CORRUGATED CARDBOARD OR OTHER CONVENIENTLY CUT AND FOLDED SHEET MATERIAL, WITH LID EQUIPPED WITH A HANDLE AND CLOSABLE, AND CORRESPONDING BLANK (S). |
| EP0443930B1 (en) * | 1990-02-20 | 1993-06-23 | Hugues Nicollet S.A. | Package made of cardboard, corrugated cardboard or other conveniently cut and folded sheet material, with a reclosable cover provided with a handle, and corresponding blank or blanks |
| FR2668120B1 (en) * | 1990-10-18 | 1994-06-24 | Nicollet Hugues Sa | PACKAGING OF A SINGLE PIECE IN CARDBOARD, CORRUGATED CARDBOARD OR OTHER CONVENIENTLY CUT AND FOLDED SHEET MATERIAL, WITH LID EQUIPPED WITH A HANDLE AND CLOSABLE, AND CORRESPONDING BLANK. |
| EP0454506A1 (en) * | 1990-04-24 | 1991-10-30 | Hugues Nicollet S.A. | Package made from cardboard, corrugated cardboard or other conveniently cut and folded sheet material, with an interengageable reclosable cover, and corresponding blank |
| FR2686316B1 (en) * | 1992-01-22 | 1995-03-17 | Nicollet Hugues Sa | PACKAGING IN A CARDBOARD, CORRUGATED CARDBOARD OR OTHER CONVENIENTLY CUT AND FOLDED SHEET MATERIAL, WITH LID CLOSABLE BY SNAP, AND CORRESPONDING BLANK (S). |
| JP2656903B2 (en) * | 1994-04-28 | 1997-09-24 | ザ、プロクター、エンド、ギャンブル、カンパニー | Cardboard carton container |
| JP3308777B2 (en) * | 1995-09-11 | 2002-07-29 | ザ、プロクター、エンド、ギャンブル、カンパニー | carton |
| US6296175B1 (en) | 2000-03-17 | 2001-10-02 | Mpc Packaging Corporation | Tamper resistant container |
| DE10061402A1 (en) * | 2000-12-09 | 2002-06-13 | Beiersdorf Ag | Resealable, rectangular folding box |
| ITBO20010615A1 (en) * | 2001-10-09 | 2003-04-09 | Paola Caroli | "FLIP-TOP" TYPE LID CASE |
| US20030116614A1 (en) | 2001-12-21 | 2003-06-26 | Block Christine Sieglinde | Container with tamper-evidence, reclosure feature |
| US20050133579A1 (en) * | 2003-12-23 | 2005-06-23 | Georgia-Pacific Corporation | Carton and corrugated board with vapor liner |
| US8292095B2 (en) | 2009-04-29 | 2012-10-23 | Rock-Tenn Shared Services, Llc | Expandable display system |
| US8342335B2 (en) | 2009-04-30 | 2013-01-01 | Rock-Tenn Shared Services, Llc | Shelf-ready shipper display system |
| US8376141B2 (en) | 2009-04-30 | 2013-02-19 | Rock-Tenn Shared Services, Llc | Shelf-ready shipper display system |
| US9004344B2 (en) * | 2009-07-30 | 2015-04-14 | Meadwestvaco Corporation | Paperboard security packages |
| USD705053S1 (en) | 2013-03-14 | 2014-05-20 | Tracy L. Nameth | Folded container |
| USD745392S1 (en) | 2014-09-26 | 2015-12-15 | Tulammo Usa, Inc. | Box for ammunition |
| USD743247S1 (en) * | 2014-09-26 | 2015-11-17 | Tulammo Usa, Inc. | Box for ammunition |
| US10363175B2 (en) | 2015-06-30 | 2019-07-30 | The Procter & Gamble Company | Carton with a reclosable opening |
| US9994356B2 (en) | 2016-03-16 | 2018-06-12 | Westrock Shared Services, Llc | Blanks and methods for forming a shelf-ready display container |
| US9938040B2 (en) | 2016-03-17 | 2018-04-10 | Westrock Shared Services, Llc | Blanks and methods for forming a shelf-ready display container |
| US20190367210A1 (en) * | 2017-01-23 | 2019-12-05 | Westrock Shared Services, Llc | E-commerce package |
| CN111776469A (en) * | 2020-06-04 | 2020-10-16 | 贵州兆信数码技术有限公司 | Glue mark anti-counterfeiting device and manufacturing method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3294309A (en) * | 1965-09-14 | 1966-12-27 | Brown Co | Snap recloseable hooded carton with improved lock structure |
| US3523636A (en) * | 1968-07-01 | 1970-08-11 | Reynolds Tobacco Co R | Reclosable carton having a hinged end closure |
| US3608812A (en) * | 1969-05-05 | 1971-09-28 | Continental Can Co | Flip-top carton lock |
| US3680767A (en) * | 1970-07-20 | 1972-08-01 | Container Corp | Hooded carton with reclosure lock |
-
1973
- 1973-11-23 US US418360A patent/US3893614A/en not_active Expired - Lifetime
-
1974
- 1974-09-27 CA CA210,253A patent/CA1042399A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3893614A (en) | 1975-07-08 |
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