CA1242422A - End closure lock - Google Patents
End closure lockInfo
- Publication number
- CA1242422A CA1242422A CA000473271A CA473271A CA1242422A CA 1242422 A CA1242422 A CA 1242422A CA 000473271 A CA000473271 A CA 000473271A CA 473271 A CA473271 A CA 473271A CA 1242422 A CA1242422 A CA 1242422A
- Authority
- CA
- Canada
- Prior art keywords
- locking
- tabs
- end panel
- panel
- openings
- 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
- B65D71/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material
- B65D71/06—Packaging elements holding or encircling completely or almost completely the bundle of articles, e.g. wrappers
- B65D71/12—Packaging elements holding or encircling completely or almost completely the bundle of articles, e.g. wrappers the packaging elements, e.g. wrappers being formed by folding a single blank
- B65D71/36—Packaging elements holding or encircling completely or almost completely the bundle of articles, e.g. wrappers the packaging elements, e.g. wrappers being formed by folding a single blank having a tubular shape, e.g. tubular wrappers, with end walls
-
- 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
- B65D5/02—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 by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
- B65D5/10—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 by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end closures formed by inward-folding of self-locking flaps hinged to tubular body
-
- 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
- B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
- B65D2571/00123—Bundling wrappers or trays
- B65D2571/00129—Wrapper locking means
- B65D2571/00135—Wrapper locking means integral with the wrapper
- B65D2571/00141—Wrapper locking means integral with the wrapper glued
-
- 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
- B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
- B65D2571/00123—Bundling wrappers or trays
- B65D2571/00432—Handles or suspending means
- B65D2571/00456—Handles or suspending means integral with the wrapper
- B65D2571/00469—Straps made between two handholes
-
- 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
- B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
- B65D2571/00123—Bundling wrappers or trays
- B65D2571/00555—Wrapper opening devices
- B65D2571/00561—Lines of weakness
- B65D2571/00574—Lines of weakness whereby contents can still be carried after the line has been torn
-
- 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
- B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
- B65D2571/00123—Bundling wrappers or trays
- B65D2571/00648—Elements used to form the wrapper
- B65D2571/00654—Blanks
- B65D2571/0066—Blanks formed from one single sheet
-
- 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
- B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
- B65D2571/00123—Bundling wrappers or trays
- B65D2571/00709—Shape of the formed wrapper, i.e. shape of each formed element if the wrapper is made from more than one element
- B65D2571/00722—Shape of the formed wrapper, i.e. shape of each formed element if the wrapper is made from more than one element tubular with end walls, e.g. walls not extending on the whole end surface
- B65D2571/00753—Shape of the formed wrapper, i.e. shape of each formed element if the wrapper is made from more than one element tubular with end walls, e.g. walls not extending on the whole end surface the end walls being closed by interlocking
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cartons (AREA)
Abstract
Abstract A wrap-around sleeve style carrier is provided with end panel punch style tabs designed to interlock the end panels and to prevent the accidental interlocking of the carrier with adjacent carriers or objects.
Description
~Z~ Z2 END CLOSURE LOCK
Background of the Invention The present invention relates to wrap-around sleeve style carriers and in particular to an end panel interlocking means for such carriers which is designed to preven-t the accidental interlocking of adjacent carriers.
Wrap-around sleeve style carriers previously marketed have been provided with punch style locking tabs on an inner end panel and complementary locking openings on an outer end panel for interlocking and overlapping end panels together. To lock the overlapping end panels together, the heads of the punch locking tabs must be inserted not only through the complementary locking openings of the outer end panel but also through openings in the inner end panel. Without such openings in the inner end panel, the head of the locking -tabs could not pass through the locking openings of the outer end panels. The openings in the inner end panel are created by the voids left when the punch style locking tabs are folded out of the inner end panel. The contours of these locking tabs below the head portions are designed to leave openings in the inner panel wider than the head portions of the locking tabs.
~owever, the contours utilized for these locking tabs leave pro-trusions on the outside of the end panels that can interlock withadjacent end panels of other carriers under some circumstances.
When an interlocking~of such carriers occurs it causes consumer complaints and can result in a tearing of the end panels.
The present invention solves the problems of the prior art locking systems by providing a punch style locking tab that eliminates the protrusions of the previous punch sytle locking tabs while still providing relief means on the inner end panel P~ f~
~2~2~;22 to facilitate the insertion of the punch style locking tab into the complementary opening of the outer end panel and back through the inner end panel.
Broadly speaking, therefore, the present invention may be conside~ed as providing a wrap-around sleeve style carrier comprising: a bottom panel, two side panels, and a top panel;
two pairs of end panels hingedly joined to opposite ends of the side panels along fold lines to close the ends of the ca:rrier, each pair of end panels comprising a first end panel and a second end panel, the first end panel having a primary locking means comprising two spaced apart locking tabs and a secondaxy locking means comprising two spaced apart locking openings, the first end panel further having slits extending outwardly from opposite sides of each locking opening at the widest part thereof, the slits extending in the general direction of the fold lines, the second end panel having a primary locking means comprising two spaced apart locking openings adapted to receive the primary locking tabs and a secondary locking means comprising two spaced apart punch locking tabs, each of the punch locking tabs having a head portion adapted to be punched through one of t:he secondary locking openings and a tapered body portion hlngedly joined at a base to the second end panel along a fold line and connected to the head poxtion through a neck portion, the width of the neck portion being less than the width of a secondary locking opening at the widest part thereof and the width of the head portion being less than the combined width of a secondary locking opening at the widest part thereof and the lengths of the slits extending therefrom, the tapered body portion having edges converging from adjacent the base of the tapered body portion to the neck portion, la ~
~Z~2 the head portion having edges extending outwardly from the neck portion which are adapted to engage the inside of the first end panel adjacent the secondary opening to prevent the punch tabs from pulling out of the seconda~y openings, and the second end panel having -two relief tabs on either side of each of the neck portions to facilitate the insertion of the punch tabs into the secondary openings, the relief tabs extending between the converging edges of the b-ody portion and the edges of the head portion, the relief tabs being hingedly joined to the second end panel along fold lines extending from the converging edges of the body portion toward the edges of the head portion, and the first end panel at least partially overlapping the second end panel with the primary locking tabs engaged in the primary openings and the secondary male punch tabs extending over the first end panel and engaged in the secondary openings to lock the end panels together.
Furthermore, the present invention may be considered as providing a production blank for a wrap-around sleeve style carrier comprising: a bottom panel, a first side panel, a second side panel and a top panel; a first pair of end panels hingedly joined to opposite ends of the first side panel along a first pair of fold lines; a second pair of end panels hingedly joined to opposite ends of the second side panel along a second pair of fold lines; the first pair of end panels each having-a primary locking means comprising two spaced apart locking tabs and a secondary locking means comprising two spaced apart locking open-ings, the first pair of end panels further having slits extending outwardly from opposite sides of each of the locking openings at the widest part thereof, the slits extending in the general - ~b~
~2~2~;~2 direction of the first pair of fold lines; and the second pair of end panels each having a primary locking means comprising two spaced apar~ locking openings adapted to receive the primary locking tabs and a secondary locking means comprising two spaced apart punch locking tabs, each of the punch locking tabs having a head portion adapted to be punched through one of the secondary locking openings and a tapered body portion ; hingedly connected at a base to the end panel along a fold line and connected to the head portion through a neck portion, the width of the neck portion being less than the width of a secondary locking opening at t.he widest part thereof and the width of the head portion being less than the combined width of a secondary locking opening at the widest part thereof and the lengths of the slits extending therefrom, the tapered body portion having edges converging from adjacent the base of the tapered body portion to the neck porti.on, the head portion having edges extending from the neck portion, and two relie~ tabs on either side of each of the neck portions, the relief tabs extending between the converg-ing edges of the body portion and the extending edges of the head portion, and the relief tabs being hingedly connected to the respective end panel along fold lines extending from the convergi.ng edges of the body portion toward the head portion.
BRIEF DESCRIPTION OF T~IE DRAWINGS
FIG. 1 is a perspective view of a carrier using the locking system of the present invention prior to the locking operation;
FIG. 2 is a partial perspective view of the carrier of FIG. 1 showing primary locking tabs of a irst end panel engaged in complementary openings of the second end panel;
- l c -~i ~2~
EIG. 3 is a partial perspective view of the carrier of YIG.
1 showing the end panels overlapped and fully interlocked with secondary punch style locking tabs of the second end panel engaged in complementary secondsry female openings of the first end panel;
FIG. 4 is a partial view of the inside of the carrier end panels with the panels fully interlocked as shown in FIG. 3;
FIG. 5 is a plan view of the production blank for the carrier of FIG. l;
FIG. 6 is a fragmentary view of the production blank to show the punch style locking tab and adjacent portions of the end panel in greater detail;
FIG. 7 is a fragmentary view of one prior art punch style loc~ing tab; and FIG. 8 i5 a fragmentary view of a second prior art punch style locking tab.
Detailed Description of the Invention FIG. 1 illustrates a typical wrap-around sleeve style paperboard carrier lO which employs the punch tab locking construction of the present invention. As best shown in FIG. 5 the carrier 10 is formed from a blank 12 which comprises a bottom panel 14; side panels 16 and 18; overlapping top panels 20 and 22; dust flaps 24, 24', 26, 26' and 28, 28'; end panels 30, 30' and end panels 32, 32'. End panels 30 and 30' are identical and end panels 32 and 32' ~re identical. Accordingly, only end panels 30 and 32 and the locking structure on those panels will be described in detail.
End panel 30 is deflned by a score line 34 which hingedly joins the end panel to side panel 18; a free edge 36 opposite the score line 31l; and side edges 38 and 40 which extend between the score line 34 and the fr0e edge 36. The end panel 30 is tapered with the side edges 38 and 40 converging toward each other as they approach the free edge 36.
End panel ~2 is defined by a score line 42 which hingedly ~oins the end panel to side panel 16; a free edge 44 opposite the score line 42; and side edges 46 and 48 which extend between the score line 42 and the ~ree edge 44. The end panel 32 is tapered with the side edges 46 and 48 converging toward each other as they approach the free edge 44. With this construction, if the carrier ~Z~2~;~2 is skewed somewhat out of square for some reason, the end panels 30 and 32 will not protrude beyond the top panels 20 and 22 or the bottom panel 14 where they can catch on another carrier or object.
The end panel 30 is provided with a pair of primary locking S tabs 50 which interlock with a pair of complementary locking openings 52 on end panel 32 when the end panels are locked together. The bases of the primQry locking tabs 50 are aligned with score line 54 but the tab bases are not scored. The tabs 50 are tapered toward their free ends 56 to facilitate the insertion of the tabs into primary locking openings 52. The widths of the primary locking openin~s 52 are somewhat greater than the ~idths of the primary locking tabs 50 at their bases to permit the lockin~ tabs S0 to be fully inserted into the openings.
The snd panel 32 is provided with a pair of secondary punch locking tabs 58 which interlock with a pair of complementary secondary locking openings 60 on the end panel 30 when the end panels are locked together. Each secondary punch locking tab 58 comprises a head portion 62, a neck portion 64 and a body portion 66. The base of the body portion 66 is hingedly connected to end panel 32 along a skip-cut 68 which extends parallel to score line 42.
The body portion 66 is tapered in the direction oP the neck portion 64 with the side edges 70 of the body portion extending in a straight line from adjacent the base to the neck portion 64.
The neck portion 64 is hingedly connected to the body portion by a s~ip-cut 72 which extends parallel to skip-cut 68 and score :Line 42. The side edges 74 of the neck portion extend perpendicular to the score line 42.
The head portion 62 is defined by a pair of inner edges 76 which extend out from the neck portion and parallel to the score line 42 and a substantially semicircular outer edge 78 which e~tends between inner edges 76.
Adjacent and on either side oP the neck portion 64 are a pair of relief tabs B0. The relief tabs extend be~ween the head portion 62 and the body portion 66 oP the secondary punch locking tab 58. Each relief tab 80 is defined by part of the body portion edge 70; the neck portion edge 74, the inner ed~e 76 of the head portion; a cut 82 extending out from and in line with the inner edge 76; and a skip-cut 84 extending between the outer end of skip-cut 82
Background of the Invention The present invention relates to wrap-around sleeve style carriers and in particular to an end panel interlocking means for such carriers which is designed to preven-t the accidental interlocking of adjacent carriers.
Wrap-around sleeve style carriers previously marketed have been provided with punch style locking tabs on an inner end panel and complementary locking openings on an outer end panel for interlocking and overlapping end panels together. To lock the overlapping end panels together, the heads of the punch locking tabs must be inserted not only through the complementary locking openings of the outer end panel but also through openings in the inner end panel. Without such openings in the inner end panel, the head of the locking -tabs could not pass through the locking openings of the outer end panels. The openings in the inner end panel are created by the voids left when the punch style locking tabs are folded out of the inner end panel. The contours of these locking tabs below the head portions are designed to leave openings in the inner panel wider than the head portions of the locking tabs.
~owever, the contours utilized for these locking tabs leave pro-trusions on the outside of the end panels that can interlock withadjacent end panels of other carriers under some circumstances.
When an interlocking~of such carriers occurs it causes consumer complaints and can result in a tearing of the end panels.
The present invention solves the problems of the prior art locking systems by providing a punch style locking tab that eliminates the protrusions of the previous punch sytle locking tabs while still providing relief means on the inner end panel P~ f~
~2~2~;22 to facilitate the insertion of the punch style locking tab into the complementary opening of the outer end panel and back through the inner end panel.
Broadly speaking, therefore, the present invention may be conside~ed as providing a wrap-around sleeve style carrier comprising: a bottom panel, two side panels, and a top panel;
two pairs of end panels hingedly joined to opposite ends of the side panels along fold lines to close the ends of the ca:rrier, each pair of end panels comprising a first end panel and a second end panel, the first end panel having a primary locking means comprising two spaced apart locking tabs and a secondaxy locking means comprising two spaced apart locking openings, the first end panel further having slits extending outwardly from opposite sides of each locking opening at the widest part thereof, the slits extending in the general direction of the fold lines, the second end panel having a primary locking means comprising two spaced apart locking openings adapted to receive the primary locking tabs and a secondary locking means comprising two spaced apart punch locking tabs, each of the punch locking tabs having a head portion adapted to be punched through one of t:he secondary locking openings and a tapered body portion hlngedly joined at a base to the second end panel along a fold line and connected to the head poxtion through a neck portion, the width of the neck portion being less than the width of a secondary locking opening at the widest part thereof and the width of the head portion being less than the combined width of a secondary locking opening at the widest part thereof and the lengths of the slits extending therefrom, the tapered body portion having edges converging from adjacent the base of the tapered body portion to the neck portion, la ~
~Z~2 the head portion having edges extending outwardly from the neck portion which are adapted to engage the inside of the first end panel adjacent the secondary opening to prevent the punch tabs from pulling out of the seconda~y openings, and the second end panel having -two relief tabs on either side of each of the neck portions to facilitate the insertion of the punch tabs into the secondary openings, the relief tabs extending between the converging edges of the b-ody portion and the edges of the head portion, the relief tabs being hingedly joined to the second end panel along fold lines extending from the converging edges of the body portion toward the edges of the head portion, and the first end panel at least partially overlapping the second end panel with the primary locking tabs engaged in the primary openings and the secondary male punch tabs extending over the first end panel and engaged in the secondary openings to lock the end panels together.
Furthermore, the present invention may be considered as providing a production blank for a wrap-around sleeve style carrier comprising: a bottom panel, a first side panel, a second side panel and a top panel; a first pair of end panels hingedly joined to opposite ends of the first side panel along a first pair of fold lines; a second pair of end panels hingedly joined to opposite ends of the second side panel along a second pair of fold lines; the first pair of end panels each having-a primary locking means comprising two spaced apart locking tabs and a secondary locking means comprising two spaced apart locking open-ings, the first pair of end panels further having slits extending outwardly from opposite sides of each of the locking openings at the widest part thereof, the slits extending in the general - ~b~
~2~2~;~2 direction of the first pair of fold lines; and the second pair of end panels each having a primary locking means comprising two spaced apar~ locking openings adapted to receive the primary locking tabs and a secondary locking means comprising two spaced apart punch locking tabs, each of the punch locking tabs having a head portion adapted to be punched through one of the secondary locking openings and a tapered body portion ; hingedly connected at a base to the end panel along a fold line and connected to the head portion through a neck portion, the width of the neck portion being less than the width of a secondary locking opening at t.he widest part thereof and the width of the head portion being less than the combined width of a secondary locking opening at the widest part thereof and the lengths of the slits extending therefrom, the tapered body portion having edges converging from adjacent the base of the tapered body portion to the neck porti.on, the head portion having edges extending from the neck portion, and two relie~ tabs on either side of each of the neck portions, the relief tabs extending between the converg-ing edges of the body portion and the extending edges of the head portion, and the relief tabs being hingedly connected to the respective end panel along fold lines extending from the convergi.ng edges of the body portion toward the head portion.
BRIEF DESCRIPTION OF T~IE DRAWINGS
FIG. 1 is a perspective view of a carrier using the locking system of the present invention prior to the locking operation;
FIG. 2 is a partial perspective view of the carrier of FIG. 1 showing primary locking tabs of a irst end panel engaged in complementary openings of the second end panel;
- l c -~i ~2~
EIG. 3 is a partial perspective view of the carrier of YIG.
1 showing the end panels overlapped and fully interlocked with secondary punch style locking tabs of the second end panel engaged in complementary secondsry female openings of the first end panel;
FIG. 4 is a partial view of the inside of the carrier end panels with the panels fully interlocked as shown in FIG. 3;
FIG. 5 is a plan view of the production blank for the carrier of FIG. l;
FIG. 6 is a fragmentary view of the production blank to show the punch style locking tab and adjacent portions of the end panel in greater detail;
FIG. 7 is a fragmentary view of one prior art punch style loc~ing tab; and FIG. 8 i5 a fragmentary view of a second prior art punch style locking tab.
Detailed Description of the Invention FIG. 1 illustrates a typical wrap-around sleeve style paperboard carrier lO which employs the punch tab locking construction of the present invention. As best shown in FIG. 5 the carrier 10 is formed from a blank 12 which comprises a bottom panel 14; side panels 16 and 18; overlapping top panels 20 and 22; dust flaps 24, 24', 26, 26' and 28, 28'; end panels 30, 30' and end panels 32, 32'. End panels 30 and 30' are identical and end panels 32 and 32' ~re identical. Accordingly, only end panels 30 and 32 and the locking structure on those panels will be described in detail.
End panel 30 is deflned by a score line 34 which hingedly joins the end panel to side panel 18; a free edge 36 opposite the score line 31l; and side edges 38 and 40 which extend between the score line 34 and the fr0e edge 36. The end panel 30 is tapered with the side edges 38 and 40 converging toward each other as they approach the free edge 36.
End panel ~2 is defined by a score line 42 which hingedly ~oins the end panel to side panel 16; a free edge 44 opposite the score line 42; and side edges 46 and 48 which extend between the score line 42 and the ~ree edge 44. The end panel 32 is tapered with the side edges 46 and 48 converging toward each other as they approach the free edge 44. With this construction, if the carrier ~Z~2~;~2 is skewed somewhat out of square for some reason, the end panels 30 and 32 will not protrude beyond the top panels 20 and 22 or the bottom panel 14 where they can catch on another carrier or object.
The end panel 30 is provided with a pair of primary locking S tabs 50 which interlock with a pair of complementary locking openings 52 on end panel 32 when the end panels are locked together. The bases of the primQry locking tabs 50 are aligned with score line 54 but the tab bases are not scored. The tabs 50 are tapered toward their free ends 56 to facilitate the insertion of the tabs into primary locking openings 52. The widths of the primary locking openin~s 52 are somewhat greater than the ~idths of the primary locking tabs 50 at their bases to permit the lockin~ tabs S0 to be fully inserted into the openings.
The snd panel 32 is provided with a pair of secondary punch locking tabs 58 which interlock with a pair of complementary secondary locking openings 60 on the end panel 30 when the end panels are locked together. Each secondary punch locking tab 58 comprises a head portion 62, a neck portion 64 and a body portion 66. The base of the body portion 66 is hingedly connected to end panel 32 along a skip-cut 68 which extends parallel to score line 42.
The body portion 66 is tapered in the direction oP the neck portion 64 with the side edges 70 of the body portion extending in a straight line from adjacent the base to the neck portion 64.
The neck portion 64 is hingedly connected to the body portion by a s~ip-cut 72 which extends parallel to skip-cut 68 and score :Line 42. The side edges 74 of the neck portion extend perpendicular to the score line 42.
The head portion 62 is defined by a pair of inner edges 76 which extend out from the neck portion and parallel to the score line 42 and a substantially semicircular outer edge 78 which e~tends between inner edges 76.
Adjacent and on either side oP the neck portion 64 are a pair of relief tabs B0. The relief tabs extend be~ween the head portion 62 and the body portion 66 oP the secondary punch locking tab 58. Each relief tab 80 is defined by part of the body portion edge 70; the neck portion edge 74, the inner ed~e 76 of the head portion; a cut 82 extending out from and in line with the inner edge 76; and a skip-cut 84 extending between the outer end of skip-cut 82
2~
and the body portion edge 70. When the relief tabs 80 are folded back they provide an opening wider than the head portion of the secondary punch locking tab 58.
The secondary locking openings 60 on end panel 30 are each defined by a convex inner edge 86, a straight outer edge 90 and side edges 88 which converge toward the straight outer edge 90. A pair of outwardly extending slits or cuts 92 are located at the junctures between the inner convex edge 86 and the side edges 88. Each opening 60 is wider at the juncture between the inner convex edge 86 and the side edges 88 than the width of the neck portion 64 of the secondary punch locking tab but narrower than the neck portion at the junctures between side edees 88 and outer edge 90. The cuts 92 extend out erom the open;ng 60 to a width greater than the width of the head portion 62 of the secondary punch locking tab 58.
The locking sequence for locking the end panels 30 and 32 together comprises first engagin6 the primary locks to initiate the interlocking of the end panels and then engaging the secondary locks to complete the interlocking of the end panels. As shown in FIG. 1 the dust flaps 24 and 26, 28 are folded inward. Then end panel 32 is folded inward as shown in FIG. 2 to overlay the dust flaps. The end panel 30 is folded inward to partially overlay end panel 32 and the outer portion of the end panel 30 is folded back along score line 54 to cause the primary locking tabs 50 to project inwardly.
The primary locking tabs 50 are inserted into the primary locking 2S openings 52 of t'ne end panel 32 and as the outer portion of the end panel 30 is folded inwardly to overlay the end panel 32 as shown in FIG. 3 th0 primary locking tabs S0 are interlocked the under end panel 32. Prior to the folding of the outer portion of end panel 30 to overlay the end panel 32, secondary punch locking tabs 58 are folded outward from the end panel 32 along skip-cut lines 68 so that the punch locking tabs clear the outer portion oP the end panel 30 as it is folded inward to overlay the end panel 32. After the outer portion of the end panel 30 is folded to overlay the end panel 32, the heads 62 of the punch locking tabs 58 are punched through the secondary locking openings 60 of the end panel 30 and through the openings in the end panel 32 left by the punch locking tabs 58. The relief tabs 80 fold inwardly along skip~cut lines 84 when contacted by the heads 62 of the punch locking tabs and accordingly, do not ~2422 interfer with the insertion of the punch locking tabs and the interlocking of the punch locking tabs 58 and the locking openings 60.
As shown in FIG. 3, after the locking sequence is completed, the punch lockin~ tabs 58 have no projections to interlock with or catch on other carriers or objects. This is a result of locating the relief tabs 80 on the end panel 32.
FIGS. 7 and 8 illustrate prior art secondary punch locking tabs 94 and 96. These secondary punch lockin~ tabs ;nclude projections 98 and 100 on either side of the neck portions of the punch locking tabs. With this construction, when the secondary punch lockin~ tabs are inserted into the secondary lockin~ openings, the projections 98 and 100 are exposed to the outside of the carrier where they can catch on other carriers or objects:
and the body portion edge 70. When the relief tabs 80 are folded back they provide an opening wider than the head portion of the secondary punch locking tab 58.
The secondary locking openings 60 on end panel 30 are each defined by a convex inner edge 86, a straight outer edge 90 and side edges 88 which converge toward the straight outer edge 90. A pair of outwardly extending slits or cuts 92 are located at the junctures between the inner convex edge 86 and the side edges 88. Each opening 60 is wider at the juncture between the inner convex edge 86 and the side edges 88 than the width of the neck portion 64 of the secondary punch locking tab but narrower than the neck portion at the junctures between side edees 88 and outer edge 90. The cuts 92 extend out erom the open;ng 60 to a width greater than the width of the head portion 62 of the secondary punch locking tab 58.
The locking sequence for locking the end panels 30 and 32 together comprises first engagin6 the primary locks to initiate the interlocking of the end panels and then engaging the secondary locks to complete the interlocking of the end panels. As shown in FIG. 1 the dust flaps 24 and 26, 28 are folded inward. Then end panel 32 is folded inward as shown in FIG. 2 to overlay the dust flaps. The end panel 30 is folded inward to partially overlay end panel 32 and the outer portion of the end panel 30 is folded back along score line 54 to cause the primary locking tabs 50 to project inwardly.
The primary locking tabs 50 are inserted into the primary locking 2S openings 52 of t'ne end panel 32 and as the outer portion of the end panel 30 is folded inwardly to overlay the end panel 32 as shown in FIG. 3 th0 primary locking tabs S0 are interlocked the under end panel 32. Prior to the folding of the outer portion of end panel 30 to overlay the end panel 32, secondary punch locking tabs 58 are folded outward from the end panel 32 along skip-cut lines 68 so that the punch locking tabs clear the outer portion oP the end panel 30 as it is folded inward to overlay the end panel 32. After the outer portion of the end panel 30 is folded to overlay the end panel 32, the heads 62 of the punch locking tabs 58 are punched through the secondary locking openings 60 of the end panel 30 and through the openings in the end panel 32 left by the punch locking tabs 58. The relief tabs 80 fold inwardly along skip~cut lines 84 when contacted by the heads 62 of the punch locking tabs and accordingly, do not ~2422 interfer with the insertion of the punch locking tabs and the interlocking of the punch locking tabs 58 and the locking openings 60.
As shown in FIG. 3, after the locking sequence is completed, the punch lockin~ tabs 58 have no projections to interlock with or catch on other carriers or objects. This is a result of locating the relief tabs 80 on the end panel 32.
FIGS. 7 and 8 illustrate prior art secondary punch locking tabs 94 and 96. These secondary punch lockin~ tabs ;nclude projections 98 and 100 on either side of the neck portions of the punch locking tabs. With this construction, when the secondary punch lockin~ tabs are inserted into the secondary lockin~ openings, the projections 98 and 100 are exposed to the outside of the carrier where they can catch on other carriers or objects:
Claims (4)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A wrap-around sleeve style carrier comprising:
a bottom panel, two side panels, and a top panel;
two pairs of end panels hingedly joined to opposite ends of said side panels along fold lines to close the ends of said carrier, each pair of end panels comprising a first end panel and a second end panel, said first end panel having a primary locking means comprising two spaced apart locking tabs and a secondary locking means comprising two spaced apart locking openings, said first end panel further having slits extending outwardly from opposite sides of each locking opening at the widest part thereof, the slits extending in the general direction of said fold lines, said second end panel having a primary locking means comprising two spaced apart locking openings adapted to receive said primary locking tabs and a secondary locking means comprising two spaced apart punch locking tabs, each of said punch locking tabs having a head portion adapted to be punched through one of said secondary locking openings and a tapered body portion hingedly joined at a base to said second end panel along a fold line and connected to said head portion through a neck portion, the width of the neck portion being less than the width of a secondary locking opening at the widest part thereof and the width of the head portion being less than the combined width of a secondary locking opening at the widest part thereof and the lengths of the slits extending therefrom, said tapered body portion having edges converging from adjacent the bass of said tapered body portion to said neck portion, said head portion having edges extending outwardly from said neck portion which are adapted to engage the inside of the first end panel adjacent said secondary openings to prevent said punch tabs from pulling out of said secondary openings, and said second end panel having two relief tabs on either side of each of said neck portions to facilitate the insertion of said punch tabs into said secondary openings, said relief tabs extending between said covering edges of said body portion and said edges of said head portion, said relief tabs being hingedly joined to said second end panel along fold lines extending from said converging edges of said body portion toward said edges of said head portion, and said first end panel at least partially overlapping said second end panel with said primary locking tabs engaged in said primary openings and said secondary male punch tabs extending over said first end panel and engaged in said secondary openings to lock the end panels together.
a bottom panel, two side panels, and a top panel;
two pairs of end panels hingedly joined to opposite ends of said side panels along fold lines to close the ends of said carrier, each pair of end panels comprising a first end panel and a second end panel, said first end panel having a primary locking means comprising two spaced apart locking tabs and a secondary locking means comprising two spaced apart locking openings, said first end panel further having slits extending outwardly from opposite sides of each locking opening at the widest part thereof, the slits extending in the general direction of said fold lines, said second end panel having a primary locking means comprising two spaced apart locking openings adapted to receive said primary locking tabs and a secondary locking means comprising two spaced apart punch locking tabs, each of said punch locking tabs having a head portion adapted to be punched through one of said secondary locking openings and a tapered body portion hingedly joined at a base to said second end panel along a fold line and connected to said head portion through a neck portion, the width of the neck portion being less than the width of a secondary locking opening at the widest part thereof and the width of the head portion being less than the combined width of a secondary locking opening at the widest part thereof and the lengths of the slits extending therefrom, said tapered body portion having edges converging from adjacent the bass of said tapered body portion to said neck portion, said head portion having edges extending outwardly from said neck portion which are adapted to engage the inside of the first end panel adjacent said secondary openings to prevent said punch tabs from pulling out of said secondary openings, and said second end panel having two relief tabs on either side of each of said neck portions to facilitate the insertion of said punch tabs into said secondary openings, said relief tabs extending between said covering edges of said body portion and said edges of said head portion, said relief tabs being hingedly joined to said second end panel along fold lines extending from said converging edges of said body portion toward said edges of said head portion, and said first end panel at least partially overlapping said second end panel with said primary locking tabs engaged in said primary openings and said secondary male punch tabs extending over said first end panel and engaged in said secondary openings to lock the end panels together.
2. A wrap-around carrier as defined in Claim 1 wherein each of said pairs of fold lines joining said relief tabs to said second end panel are spaced out from and coverage toward said head portions.
3. A wrap-around carrier as defined in Claim 1 wherein each of said end panels is tapered from said fold line joining said end panel to said side panel to a free edge opposite said fold line.
4. A production blank for a wrap-around sleeve style carrier comprising:
a bottom panel, a first side panel, a second side panel and a top panel;
a first pair of end panels hingedly joined to opposite ends of said first side panel along a first pair of fold lines;
a second pair of end panels hingedly joined to opposite ends of said second side panel along a second pair of fold lines;
said first pair of end panels each having a primary locking means comprising two spaced apart locking tabs and a secondary locking means comprising two spaced apart locking openings, said first pair of end panels further having slits extending outwardly from opposite sides of each of the locking openings at the widest part thereof, the slits extending in the general direction of the first pair of fold lines; and said second pair of end panels each having a primary locking means comprising two spaced apart locking openings adapted to receive said primary locking tabs and a secondary locking means comprising two spaced apart punch locking tabs, each of said punch locking tabs having a head portion adapted to be punched through one of said secondary locking openings and a tapered body portion hingedly connected at a base to said end panel along a fold line and connected to said head portion through a neck portion, the width of the neck portion being less than the width of a secondary locking opening at the widest part thereof and the width of the head portion being less than the combined width of a secondary locking opening at the widest part thereof and the lengths of the slits extending therefrom, said tapered body portion having edges converging from adjacent said base of said tapered body portion to said neck portion, said head portion having edges extending from said neck portion, and two relief tabs on either side of each of said neck portions, said relief tabs extending between said converging edges of said body portion and said extending edges of said head portion, and said relief tabs being hingedly connected to said respective end panel along fold lines extending from said converging edges of said body portion toward said head portion.
a bottom panel, a first side panel, a second side panel and a top panel;
a first pair of end panels hingedly joined to opposite ends of said first side panel along a first pair of fold lines;
a second pair of end panels hingedly joined to opposite ends of said second side panel along a second pair of fold lines;
said first pair of end panels each having a primary locking means comprising two spaced apart locking tabs and a secondary locking means comprising two spaced apart locking openings, said first pair of end panels further having slits extending outwardly from opposite sides of each of the locking openings at the widest part thereof, the slits extending in the general direction of the first pair of fold lines; and said second pair of end panels each having a primary locking means comprising two spaced apart locking openings adapted to receive said primary locking tabs and a secondary locking means comprising two spaced apart punch locking tabs, each of said punch locking tabs having a head portion adapted to be punched through one of said secondary locking openings and a tapered body portion hingedly connected at a base to said end panel along a fold line and connected to said head portion through a neck portion, the width of the neck portion being less than the width of a secondary locking opening at the widest part thereof and the width of the head portion being less than the combined width of a secondary locking opening at the widest part thereof and the lengths of the slits extending therefrom, said tapered body portion having edges converging from adjacent said base of said tapered body portion to said neck portion, said head portion having edges extending from said neck portion, and two relief tabs on either side of each of said neck portions, said relief tabs extending between said converging edges of said body portion and said extending edges of said head portion, and said relief tabs being hingedly connected to said respective end panel along fold lines extending from said converging edges of said body portion toward said head portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US57710884A | 1984-02-06 | 1984-02-06 | |
| US06/577,108 | 1984-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1242422A true CA1242422A (en) | 1988-09-27 |
Family
ID=24307314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000473271A Expired CA1242422A (en) | 1984-02-06 | 1985-01-31 | End closure lock |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS60183337A (en) |
| CA (1) | CA1242422A (en) |
| DE (2) | DE8503123U1 (en) |
| FR (1) | FR2559124B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011069254A1 (en) * | 2009-12-08 | 2011-06-16 | Langen H J Paul | Method and apparatus for forming containers with corrugated material |
| US8961380B2 (en) | 2008-09-12 | 2015-02-24 | H. J. Paul Langen | Method and system for forming a carton from a carton blank |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4685566A (en) * | 1985-12-24 | 1987-08-11 | Manville Sales Corporation | Sleeve-type carrier |
| US5647483A (en) * | 1996-02-23 | 1997-07-15 | Riverwood International Corporation | Article carrier with reinforced handle |
| DE102006055999A1 (en) * | 2005-11-25 | 2007-05-31 | Krones Ag | Cardboard box for the dispatch of bottles comprises inner flaps with protruding tongues with insertion bevels on their edges facing away from the folding lines |
| DE102013015039B4 (en) * | 2013-09-12 | 2023-06-07 | Thimm Verpackung Gmbh + Co. Kg | Transport and presentation packaging |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3670950A (en) * | 1970-07-01 | 1972-06-20 | Continental Can Co | Tubular carton with axially closed ends |
| US3945560A (en) * | 1975-01-20 | 1976-03-23 | Olinkraft, Inc. | Package lock |
| US3955748A (en) * | 1975-03-21 | 1976-05-11 | The Mead Corporation | Panel interlocking means |
| US4437606A (en) * | 1982-03-26 | 1984-03-20 | Manville Service Corp. | Beverage package and production blank with improved locking features |
-
1985
- 1985-01-31 CA CA000473271A patent/CA1242422A/en not_active Expired
- 1985-02-05 FR FR8501557A patent/FR2559124B1/en not_active Expired
- 1985-02-05 DE DE19858503123 patent/DE8503123U1/de not_active Expired
- 1985-02-05 DE DE19853503857 patent/DE3503857A1/en active Granted
- 1985-02-06 JP JP60020168A patent/JPS60183337A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8671654B2 (en) | 2008-09-12 | 2014-03-18 | H. J. Paul Langen | Method and system for forming containers with corrugated material |
| US8961380B2 (en) | 2008-09-12 | 2015-02-24 | H. J. Paul Langen | Method and system for forming a carton from a carton blank |
| WO2011069254A1 (en) * | 2009-12-08 | 2011-06-16 | Langen H J Paul | Method and apparatus for forming containers with corrugated material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60183337A (en) | 1985-09-18 |
| DE8503123U1 (en) | 1988-07-14 |
| FR2559124B1 (en) | 1989-06-02 |
| DE3503857C2 (en) | 1988-08-25 |
| DE3503857A1 (en) | 1985-08-08 |
| JPH0575627B2 (en) | 1993-10-20 |
| FR2559124A1 (en) | 1985-08-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |