EP0092396B1 - Carton closure interlock - Google Patents

Carton closure interlock Download PDF

Info

Publication number
EP0092396B1
EP0092396B1 EP19830302134 EP83302134A EP0092396B1 EP 0092396 B1 EP0092396 B1 EP 0092396B1 EP 19830302134 EP19830302134 EP 19830302134 EP 83302134 A EP83302134 A EP 83302134A EP 0092396 B1 EP0092396 B1 EP 0092396B1
Authority
EP
European Patent Office
Prior art keywords
closure
closure panel
locking tab
primary
secondary locking
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
Application number
EP19830302134
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0092396A3 (en
EP0092396A2 (en
Inventor
Robert Henry Ganz
Guelfo Antonio Manizza
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Federal Paper Board Co Inc
Original Assignee
Federal Paper Board Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US06/370,557 external-priority patent/US4476977A/en
Priority claimed from US06/370,558 external-priority patent/US4433807A/en
Priority claimed from US06/370,387 external-priority patent/US4433806A/en
Application filed by Federal Paper Board Co Inc filed Critical Federal Paper Board Co Inc
Priority to AT83302134T priority Critical patent/ATE35247T1/de
Publication of EP0092396A2 publication Critical patent/EP0092396A2/en
Publication of EP0092396A3 publication Critical patent/EP0092396A3/en
Application granted granted Critical
Publication of EP0092396B1 publication Critical patent/EP0092396B1/en
Expired legal-status Critical Current

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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
    • 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
    • B65D2571/00154—Wrapper locking means integral with the wrapper interlocked
    • B65D2571/00172—Wrapper locking means integral with the wrapper interlocked by tabs cut within one end and facing towards the other end when blank is unfolded, and co-operting with openings at the other end
    • 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
    • B65D2571/00154—Wrapper locking means integral with the wrapper interlocked
    • B65D2571/00185—Wrapper locking means integral with the wrapper interlocked by tabs cut within one end and facing away from the other end when blank is unfolded, and co-operting with openings at the other end

Definitions

  • This invention relates in general to new and useful improvements in cartons of the wrap around type having a closure panel assembly defined by inner and outer closure panels, and more particularly to the closure interlock between the inner and outer closure panels.
  • US-A-3 220 155 discloses an apparatus for mechanically folding a paper board blank about a group of articles, and mechanically interlocking overlapping margins of the blank on the bottom of the group of articles, to form a package unit.
  • a wrapper blank in flat form is aligned with and deposited transversely across the top of a group of articles.
  • the wrapper blank is then folded about the group of articles and mechanically interlocked in the folding section of the apparatus.
  • the present invention seeks to provide an improved closure interlock. Accordingly the present invention provides a closure interlock for a closure panel assembly of a carton of the wrap around type, said closure interlock comprising an inner closure panel and an outer closure panel each having a free-edge, said inner closure panel having struck therefrom a secondary locking tab carried by a secondary flap with said secondary locking tab facing said free edge of said inner closure panel, the displacement of said secondary locking tab and said secondary flap from said inner closure panel defining an opening in said inner closure panel, and said outer closure panel having a terminal edge flap portion in part defined by a fold line and in part by cut line means, said cut line means defining a primary locking tab carried by said terminal edge flap portion and facing away from said outer closure panel free edge for locking behind the edge of said opening in said inner closure panel, said secondary locking tab extending first through said outer closure panel and then through said opening in said inner closure panel (as it is known from US-A-3 220 155) characterised in that said cut line means defining said primary locking tab includes at least one cut line which also defines an
  • the secondary locking shoulder underlies said primary locking tab a distance wherein the secondary locking tab may enter through the closure panels at a shallow angle for movement beneath an article being packaged in the carton. Additionally there may be a separator tab hingedly carried by said secondary flap.
  • the inner closure panel is formed so as to have the secondary locking tab formed thereon and carried by a flap which moves out of the plane of the inner closure panel to define primary locking shoulders on opposite sides of the position of the secondary locking tab for engagement by the primary locking tab.
  • the primary lock and secondary lock are placed substantially in alignment along the length of the closure interlock. This permits a savings of between 13 mm (one half inch) and 19 mm (three quarter inch) of the carton forming material, which savings is on the order of six percent or greater depending on the size of the items which are to be wrapped into a package using the carton.
  • Figure 25 is a fragmentary perspective view showing the closure panels fully interlocked including the details of two adjacent closure interlocks and their respective separator tabs.
  • FIG. 7 the lower portion of a carton having a closure interlock in accordance with this invention, the carton being identified by the numeral 10.
  • the carton 10 includes a pair of side panels 11 and 12 which are connected together by a two piece closure panel assembly generally identified by the numeral 13.
  • the closure panel assembly 13 includes an outer closure panel 14 connected to the lower edge of the side panel 11 along a fold line 15.
  • the closure panel assembly 13 also includes an inner closure panel 16 connected to the lower edge of the side panel 12 along a fold line 17.
  • the closure panels 14 and 16 are interconnected by a closure interlock formed in accordance with this invention and generally identified by the numeral 18.
  • closure interlock 18 has universal application, it is particularly adapted for forming an interlock between closure panels of a carton intended to wrap four items with the closure interlock 18 being centered between these four items.
  • the closure panel 14 has formed along the free edge thereof a terminal flap portion 19 which is defined in part by an interrupted fold line 20 and a cut line 21.
  • the combination of the fold line 20 and the cut line 21 defines a pair of primary locking tabs 22 which are spaced along the length of the closure and which are separated by a secondary locking shoulder 23.
  • the closure panel 16 has formed therein a cut line 26 which generally defines a secondary locking tab 27 which is carried by a secondary flap 28.
  • the secondary flap 28 is connected to the closure panel 16 along a fold line 30. It is to be noted that the secondary locking tab 27 is connected to the flap 28 by a reduced width neck portion 31 and generally along a fold line 32.
  • the terminal flap portion 19 and the secondary locking tab and flap 28 are folded to the positions shown in Figure 2 prior to the overlapping of the closure panels 14 and 16.
  • the adjacent edge portions of the closure panels 14 and 16 are then brought into overlapping relation with the primary locking tabs 22 extending through the opening and the closure panel 16 defined by the displacement of the secondary locking tab 27 and the locking flap 28 and are engaged behind the primary locking shoulders 33, as is shown in Figure 4.
  • the primary locking tabs 22 are thus interlocked behind the shoulders 33, the terminal flap portion 19 is folded up generally through the opening in the inner closure panel 16 to the position illustrated in Figure 5 and the secondary locking tab 27 is folded or hinged relative to the flap 28 and inserted through the openings formed in the closure panels 14 and 16 with the secondary locking tab 27 first engaging behind the secondary locking shoulder 23 and then behind the secondary locking shoulders 34, as is shown in Figure 5.
  • FIG. 9 wherein there is illustrated an outer closure panel 50 and an inner closure panel 51 of a closure panel assembly 52 of a carton 53 of which the lower portion only is shown in Figure 14.
  • the closure panel 50 is provided with a combination of fold or hinge lines 54 and cut lines 55 to define along the free edge thereof a terminal flap portion 56 which carries a pair of primary locking tabs 57 which are spaced along the general length of the closure panel 50.
  • the inner closure panel 51 is provided with a fold or hinge line 58 generally parallel to its free edge and which in association with a cut line 60 defines a secondary flap 61 carrying a pair of secondary locking tabs 62.
  • Each secondary locking tab 62 is hingedly connected to the secondary flap 61 along a hinge or fold line 63.
  • each locking tab 62 is provided with a reduced width neck portion 64 generally defined by an elongated finger 65 which projects generally into the secondary locking tab 62.
  • the fingers 65 are arranged in generally opposed relation.
  • an initial interlock may be made by inserting the primary closure tab 57 through the opening 66 and behind the shoulders 67, as is shown in Figure 11.
  • the terminal flap portion 56 may then be folded upwardly against the underside of the inner closure panel 51, as shown in Figure 12, after which the secondary locking tabs 62 may be hinged relative to the secondary flap 61 and advanced through the outer closure panel 50 to the right of the primary locking tabs 57 and through those portions of the inner closure panel 51 from which the secondary locking tabs have been struck, as is shown in Figure 12.
  • the secondary locking shoulders 68 underlie the primary locking tabs 57 and are so positioned whereby the angle of entry of the secondary locking tabs 62 is relatively shallow so that the secondary locking tabs 62 is relatively shallow so that the secondary locking tabs 62 may enter beneath overlying articles which are being formed into a package within the carton 53.
  • FIG 8 it will be seen that there is illustrated a carton of the wrap around type which is generally identified by the numeral 71 and includes an outer closure panel 72 and an inner closure panel 73 generally corresponding to the closure panels 50 and 51, respectively.
  • the carton 71 is provided with two closure interlocks generally corresponding to the closure interlock 70 for interlocking the closure panels 72 and 73 in the manner illustrated in Figure 14.
  • FIG 8 there is also illustrated a conventional type of wrap around carton generally identified by the numeral 74.
  • the carton 74 will be of the sam'e overall size for forming a package of one or more items in the same manner as in the case of the carton 71.
  • the carton 74 is provided with an outer closure panel 75 and an inner closure 76 with an entirely different type of closure interlock.
  • the closure interlock of the carton 74 includes cutouts 77 in the inner closure panel 76 which define primary locking shoulders 78 spaced from secondary locking shoulders 80.
  • the outer closure panel 75 is provided with one or more terminal flap portions 81 which carry primary locking tabs 82 and secondary locking tabs 83 for engagement with the locking shoulders 78 and 80, respectively.
  • the locking shoulders 78 and 80 are spaced a considerable distance transversely of the length of the closure panels 75, 76 whereas in accordance with the specific illustrations of Figures 9-14, the inner closure panel 73 of the carton 71 is provided with primary locking shoulders 84 and secondary locking shoulders 85 which are spaced closely together transversely of the length of the closure panels 72, 73.
  • the overall length of the blank of the carton 71 is a length 1 1 which is lesser than the length of the blank for the carton 74, 1 2 by a distance 1 3 .
  • the distance 1 3 is basically equal to the
  • This distance will be on the order of 13 mm (one half inch) to 19 mm (three quarters inch) and depending on the overall length of the carton blank may constitute a saving of carton stock equal to six percent or greater.
  • FIG. 20 it will be seen that there is illustrated a modified carton 86 having a closure panel assembly defined by a slightly modified form of closure interlock 87.
  • the closure panel assembly includes an inner closure panel 88 and outer closure panel 90.
  • the outer closure panel 90 has formed along the free edge thereof a terminal flap portion 91 which is defined by a combination of hinge lines 92 and cut lines 93 with the cut lines 93 defining along the terminal flap portion 91 primary locking tabs 96.
  • the inner closure panel 88 has in alignment with each of the primary closure tabs 94 a fold line 95 and a cooperating cut line 96 which define a secondary flap 97 carrying a secondary locking tab 98 with the secondary locking tab 98 being hingedly connected to the secondary flap 97 along a hinge line 100.
  • Each of the secondary locking tabs 98 is provided with a narrow neck 101 defined by a pair of opposed fingers 102 generally projecting into the secondary locking tab 98.
  • each secondary locking tab and its associated flap 97 is struck downwardly out of the inner closure panel 88, there is formed in the closure panel 88 a relatively large opening 103.
  • This opening provides on opposite sides of the initial position of each secondary locking tab 98 a primary locking shoulder 104.
  • each finger 102 defines a secondary locking shoulder 105.
  • closure panels 88 and 90 are brought together with the closure panel 90 underlying the closure panel 88, as is generally shown in Figures 9 and 10.
  • the primary closure tabs 94 are then passed through the openings 103 and engage behind the primary locking shoulders 104.
  • the terminal flap portion 91 is swung up to a position generally underlying the adjacent portion of the closure panel 88, as is shown in Figure 18.
  • each secondary locking tab 98 is hinged relative to its associated secondary flap 97 and is inserted through aligned opening portions in the closure panels 88, 90, as is shown in Figure 18. It will be seen that the angle of entry of the secondary locking tabs 98 is relatively shallow as in the case of the secondary locking tabs 62 of the embodiment of the invention illustrated in Figures 9-14.
  • the secondary locking tabs 98 are continued to be moved into the container until they assume the positions illustrated in Figure 19 overlying the adjacent portion of the inner closure panel 88 to complete closure interlock 87.
  • the secondary locking tabs 98 may underlie articles which are being formed into a package by the carton 86.
  • FIG. 25 there is illustrated an outer closure panel 120 and an inner closure panel 121 of a closure panel assembly 122 of a carton of the wrap around type intended to have packaged therein items in two rows.
  • the closure panels 120, 121 are secured together by a plurality of closure interlocks 123 which may be aligned with a set or pair of such items within the carton.
  • Each closure interlock 123 includes a primary locking tab 124 which is carried by a terminal flap portion 125 of the outer closure panel 120.
  • the terminal flap portion 125 and each primary locking tab 124 carried thereby is defined by a series of hinge or fold lines 126 and cut lines 127.
  • Each closure interlock also includes formed in the inner closure panel 121 by means of a hinge or fold line 128 and cut lines 130 and 131, a secondary locking tab 132, a secondary flap 133 and a separator tab 134.
  • Each secondary locking tab 132 is joined to the secondary flap 133 along a hinge line 135 and includes a narrow neck portion 136 defined by a pair of opposed fingers 137 projecting thereinto.
  • an opening 138 is formed with the boundaries of the opening 138 defining primary locking shoulders 140 and secondary locking shoulders 141.
  • separator tab 134 is hingedly connected to the secondary flap 133 along a fold line 142.
  • separator tabs 134 are struck from the inner closure panel 121 so as to assume a generally vertical position and pass between a pair of items 143 which are arranged in two adjacent rows.
  • the illustrated items are bottles, but the items may be any type.
  • terminal flap portion 125 has been swung up beneath the inner closure panel 121 and the primary locking tabs 124 have assumed their fully locked positions. Further, each secondary locking tab 132 has been folded relative to its associated secondary flap 133 and has entered into the aligned openings in the closure panels 120,121 at a very shallow angle.
  • the secondary locking tab 132 has moved to its fully interlocked position wherein the secondary flap 133 underlies the terminal flap portion 125, the secondary locking tab 132 underlies the primary locking tab 124, and the primary locking tab 132 is engaged behind the secondary locking shoulders 141. Further, the secondary locking tab 132 is at least partially seated in that portion of the opening 138 in the inner closure panel 121 from which it was initially struck.
  • the closure interlock 123 is now completed.
  • the carton closure panel assembly 122 may be provided with as many of the closure interlocks 123 as there are items in a row within the carton.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Hydroponics (AREA)
  • Packages (AREA)
EP19830302134 1982-04-21 1983-04-15 Carton closure interlock Expired EP0092396B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83302134T ATE35247T1 (de) 1982-04-21 1983-04-15 Kartonverschluss.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US06/370,557 US4476977A (en) 1982-04-21 1982-04-21 Closure interlock for wrap around cartons and including separator tabs
US370387 1982-04-21
US06/370,558 US4433807A (en) 1982-04-21 1982-04-21 Carton closure interlock
US370557 1982-04-21
US370558 1982-04-21
US06/370,387 US4433806A (en) 1982-04-21 1982-04-21 Closure interlock for cartons of the wrap around type

Publications (3)

Publication Number Publication Date
EP0092396A2 EP0092396A2 (en) 1983-10-26
EP0092396A3 EP0092396A3 (en) 1986-03-05
EP0092396B1 true EP0092396B1 (en) 1988-06-22

Family

ID=27408963

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830302134 Expired EP0092396B1 (en) 1982-04-21 1983-04-15 Carton closure interlock

Country Status (14)

Country Link
EP (1) EP0092396B1 (enrdf_load_stackoverflow)
AU (1) AU561443B2 (enrdf_load_stackoverflow)
BR (1) BR8302063A (enrdf_load_stackoverflow)
CA (1) CA1232239A (enrdf_load_stackoverflow)
DE (1) DE3377122D1 (enrdf_load_stackoverflow)
DK (1) DK160014C (enrdf_load_stackoverflow)
ES (1) ES281069Y (enrdf_load_stackoverflow)
GR (1) GR78192B (enrdf_load_stackoverflow)
IE (1) IE54182B1 (enrdf_load_stackoverflow)
IL (1) IL68429A (enrdf_load_stackoverflow)
MX (1) MX158440A (enrdf_load_stackoverflow)
NO (1) NO161432C (enrdf_load_stackoverflow)
NZ (1) NZ203867A (enrdf_load_stackoverflow)
PH (1) PH21110A (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4498618A (en) * 1983-08-12 1985-02-12 Federal Paper Board Co., Inc. Lock arrangement between two carton closure panels
US4708284A (en) * 1986-02-12 1987-11-24 Federal Paper Board Co., Inc. Lock arrangement
US5131588A (en) * 1991-10-15 1992-07-21 The Mead Corporation Panel interlock
US5437363A (en) * 1994-05-27 1995-08-01 Crown Packaging Ltd. Wrap-around carrier sleeve with article retaining means
US5443203A (en) * 1994-10-03 1995-08-22 Riverwood International Corporation Carton panel lock
GB2294254B (en) * 1994-10-14 1998-03-18 Assidomon Packaging Uk Ltd Packaging sleeves

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL302721A (enrdf_load_stackoverflow) * 1963-01-09
DE1486541A1 (de) * 1963-06-24 1969-04-17 Olinkraft Inc Verschluss fuer einen Verpackungswickel
US3395791A (en) * 1967-02-27 1968-08-06 Olinkraft Inc Automatically adjustable lock device

Also Published As

Publication number Publication date
NZ203867A (en) 1986-06-11
EP0092396A3 (en) 1986-03-05
NO831407L (no) 1983-10-24
ES281069Y (es) 1985-10-16
PH21110A (en) 1987-07-16
AU1352583A (en) 1983-10-27
IE830841L (en) 1983-10-21
AU561443B2 (en) 1987-05-07
MX158440A (es) 1989-01-31
NO161432C (no) 1989-08-16
EP0092396A2 (en) 1983-10-26
CA1232239A (en) 1988-02-02
DK172983D0 (da) 1983-04-20
NO161432B (no) 1989-05-08
ES281069U (es) 1985-03-01
DK172983A (da) 1983-10-22
DE3377122D1 (en) 1988-07-28
BR8302063A (pt) 1983-12-27
DK160014B (da) 1991-01-14
DK160014C (da) 1991-06-17
GR78192B (enrdf_load_stackoverflow) 1984-09-26
IL68429A (en) 1986-11-30
IE54182B1 (en) 1989-07-05

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