EP0150117B1 - Verriegelungsmittel für Wandungen - Google Patents

Verriegelungsmittel für Wandungen Download PDF

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Publication number
EP0150117B1
EP0150117B1 EP85300366A EP85300366A EP0150117B1 EP 0150117 B1 EP0150117 B1 EP 0150117B1 EP 85300366 A EP85300366 A EP 85300366A EP 85300366 A EP85300366 A EP 85300366A EP 0150117 B1 EP0150117 B1 EP 0150117B1
Authority
EP
European Patent Office
Prior art keywords
locking
tab
edge
slit
locking 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 - Lifetime
Application number
EP85300366A
Other languages
English (en)
French (fr)
Other versions
EP0150117A3 (en
EP0150117A2 (de
Inventor
Jean Chaussadas
André Milliens
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.)
Mead Corp
Original Assignee
Mead Corp
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 GB848401610A external-priority patent/GB8401610D0/en
Application filed by Mead Corp filed Critical Mead Corp
Priority to AT85300366T priority Critical patent/ATE81094T1/de
Priority to EP91202323A priority patent/EP0464960B1/de
Publication of EP0150117A2 publication Critical patent/EP0150117A2/de
Publication of EP0150117A3 publication Critical patent/EP0150117A3/en
Application granted granted Critical
Publication of EP0150117B1 publication Critical patent/EP0150117B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D2571/0016—Wrapper locking means integral with the wrapper interlocked by tabs protruding from one end and co-operating with openings at the other end

Definitions

  • This invention relates to panel interlocking means for securing together a pair of panels, more particularly the base panels of a wrap-around type package.
  • the panels are provided by the opposite ends of a wrapper blank which are brought together and interlocked.
  • Locking tabs which are struck from one end of a carton wrapper and which are arranged to be driven through corresponding apertures, defined by retaining tabs, struck from an opposite end of the wrapper are well known, e.g. from US Patent No 4,093,116.
  • the present invention primarily is concerned with the interlocking of panels by causing a locking tab to be engaged by a relative sliding movement into a locking aperture.
  • the anchoring tabs may be located on one end panel of the blank and the locking slits may be provided in an opposite end panel of the blank. Both the opposed end panels form overlapping base panels in the completed package.
  • the blank is applied to a group of articles to be packaged in a packaging machine as the articles are conveyed together, through the machine by folding the blank around the article group.
  • the anchoring tabs are positioned so that they are folded to facilitate insertion into the locking slits during the folding operation of the blank.
  • the locking slit is formed in a fold line of its associated panel the fold line being spaced inwardly from the end edges of that panel to define a foldable edge strip.
  • the edge strip has an abutment edge and a trailing edge of the locking tab lies substantially parallel to the locking slit when the locking tab is engaged.
  • the present invention provides a blank for forming a wraparound carton, an arrangement for securing together a pair of panels of the blank, said arrangement comprising a locking tab projecting from an end edge of one of said panels and a locking slit provided adjacent an end edge of the other of said panels, said locking tab having a leading main portion, an anchoring portion provided with a trailing edge portion, said locking slit being disposed along a fold line spaced inwardly from, and extending substantially parallel to the end edge of said other panel to define a foldable edge strip said locking slit being arranged with respect to said fold line so that the locking slit is temporarily opened when said edge strip is folded out of the plane of the other of said panels, as the wraparound carton is formed to facilitate the insertion of the locking tab and providing an abutment edge characterized in that the anchoring portion is provided by a tab hinged along a fold line to one side of said main portion of the locking tab and folded into overlapping relationship with said main portion when said locking tab is being inserted into said locking s
  • Panel 10 includes a locking tab 14 projecting outwardly in the plane of the panel from the end edge 16.
  • the locking tab 14 comprises a main portion 18 and an integral anchoring tab 20 which is hinged to one side edge of the main portion 18 along a fold line 22.
  • the fold line is substantially perpendicular to the end edge 16 of panel 10.
  • the trailing edge 24 of the anchoring tab is spaced from end edge 16 and, in use, provides a locking edge for cooperation with an abutment edge defined by a locking slit in panel 12.
  • the main portion 18 is formed to include a nose 26 which projects beyond the foldable anchoring tab to lead insertion of the locking tab in a locking slit of panel 12.
  • Panel 12 includes a locking slit 28 in the form of a shallow "V" which is struck from panel 12 along a fold line 30 extending parallel to the end edge 12a of panel 12.
  • panel 12 has a foldable front edge strip 32.
  • the slit is formed by a continuous cut line comprising a first part 34 extending along strip 32 towards the end edge of the panel at an acute angle with respect to fold line 30; a return part 36 extending back to meet fold line 30 at an acute angle with respect thereto; and an end part 38 extending along fold line 30 which provides an abutment edge on the edge strip 32 for cooperation with the trailing edge 24 of the anchoring tab.
  • the anchoring tab 20 is folded 180° about fold line 22 into face contacting relationship with the underside of the main portion 18. Also, the front edge strip 32 is folded about fold line 30 out of the plane of the blank ( Figure 2) to open the slit 28.
  • the maximum transverse dimension (corresponding to the maximum width of the main portion) from fold line 22 to the opposite edge of the tab is sized so that the locking tab can be slidingly engaged in the locking slit 28.
  • the locking tab may be an interference fit in the locking slit.
  • locking tab 14 can be inserted into the slit until the trailing edge 24 of the anchoring tab has moved past, that is to say, cleared the abutment edge 38 of the locking slit.
  • both the front edge strip 32 of panel 12 and the anchoring tab 20 are flat, that is parallel to the plane of the panels. Nevertheless, the abutment between trailing edge 24 at or adjacent fold line 22 and abutment edge 38 maintains the panels interlocked. Moreover, the double-ply thickness of material provided by both the main portion 18 and anchoring tab 20 is sufficient to prevent withdrawal of the locking tab 18 from the locking slit. It will be appreciated that in this locking configuration, the trailing edge 24 lies substantially parallel to the abutment edge 38 to enhance the engagement between the panels.
  • Panel 42 includes a locking tab 46 projecting outwardly in the plane of the panel from end edge 48.
  • the locking tab 46 comprises a main portion 50 and an integral anchoring tab 52 which is hinged to one side edge of the main portion 50 along a fold line 54.
  • the fold line is inclined, 15° (angle ( ⁇ ) ) with respect to a notional line 'X' depicting the locking direction of the locking tab. It will be seen that line 'X' is perpendicular to the edge 48 of panel 42 and to the leading edge 56 of the locking tab.
  • the fold line 54 meets the trailing edge 58 of the anchoring tab at a location which is displaced outwardly from the base of the locking tab thus providing a hooked edge 'h' when the anchoring tab is folded.
  • the hooked edge 'h' is provided by a trailing edge of the main portion 50 of the locking tab and either hooked edge 'h' or trailing edge 58 (or both) may provide the locking edge for cooperation with an abutment edge defined by a locking slit in panel 44.
  • Panel 44 includes a locking slit 60 in the form of a shallow 'V' which is struck from panel 44 along a fold line 62 extending parallel to the end edge 64 of panel 44.
  • panel 44 has a foldable front edge strip 66.
  • the slit 60 is formed by a continuous cut line comprising a first part 68 extending along strip 66 towards the end edge 64 of the panel at an acute angle with respect to fold line 62 and which provides an abutment edge on the edge strip 66 for cooperation with trailing edge of the locking tab, that is to say, the trailing edge 58 of the anchoring tab and/or the hooked edge 'h'.
  • the slit 60 further includes a return part 70 extending back to meet fold line 62 at an acute angle with respect thereto. When front edge strip 66 is folded out of the plane of the blank the slit is opened and the first and return parts define a guide projection 72 projecting outwardly from fold line 62.
  • the anchoring tab is folded 180° about fold line 62 into face contacting relationship with the main portion 50. Also, the front edge strip 66 of panel 44 is folded about fold line 62 out of the plane of the blank to open the locking slit 60. Once the anchoring tab has been folded thus, the maximum transverse dimension (corresponding to the maximum width of the main portion 50) from fold line 54 to the opposite edge 74 of the locking tab is sized so that the locking tab can be slidingly engaged in the locking slit 60.
  • the locking tab may be an interference fit in the locking slit.
  • the side edges of the locking tab when the anchoring tab is folded diverge towards the leading edge 56 of the locking tab thus allowing progressive engagement of the tab into the slit.
  • the locking tab can be inserted into the slit until the trailing edge of the locking tab clears the abutment edge 68 of the slit.
  • the trailing edge corner "c" of the anchoring tab is angled so that it simultaneously clears an adjacent part of the return edge 70 of the slit.
  • the anchoring tab 52 remains flat when the lock is incorporated as part of a wraparound carton so that the trailing edge 58 of the anchoring tab lies substantially parallel to the abutment edge 68 of the locking slit thus providing a positive locking engagement between the panels.
  • the hooked portion "h" of the main portion 50 adjacent trailing edge 58 engages the abutment edge 68 of the locking slit to maintain the locking relationship between the panels.
  • the second modified construction shown in figures 5 and 6 is similar to the immediately preceding embodiment and like parts are designated like reference numerals with the addition of suffix 'a'.
  • this second modified construction the configuration of the locking slit 60a is reversed to give a broader abutment edge 68a. Consequently, the trailing edge 58a of the anchoring tab is given a rake angle ' ⁇ ' in order that it can lie substantially parallel to the abutment edge 68a of the locking slit when it is in is folded overlapping relationship as shown in Figure 6.
  • abutment edge 68b of the locking slit 60b is provided by a short cut line extending along the fold line 62b.
  • slit 60b comprises abutment edge 68b, and angular cuts 70b and 76.
  • the side edge 74b of the locking tab is curvilinear so that there is no sharp angular changed in the configuration of the side edge.
  • the rake angle ' ⁇ ' of the trailing edge is incresed. As best seen in Figure 10, angle ' ⁇ ' is approximately 30°.
  • angle ' ⁇ ' is approximately 30°.
  • Figure 10 shows a further modified embodiment in which like parts of the preceding three embodiments are designated like reference numerals with the addition of suffix 'c'.
  • the trailing edge of the anchoring tab comprises two contiguous edges 58 c and 58 c ' in which the edge 58 c is angled so as to lie parallel to the abutment edge 68 c .
  • the remaining part of the trailing edge 58c' is given a steeper rake angle so that a clearance or safety angle 'Sa' as in the immediately preceding embodiment is produced.
  • the anchoring tab may fold along a fold line which is displaced inwardly of the tab instead of along the correct fold line provided resulting in unreliable locking.
  • the fold line 54d terminates at the inner edge of the trailing edge 58 d which assists in avoiding incorrect folding of the anchoring tab 52d.
  • FIGURE 12 shows a locking tab similar to that illustrated in FIGURE 9 and in which like parts are designated like reference numerals but with the addition of suffix 'e'.
  • a transverse fold line 'F' extends across the base of the tab substantially in alignment with the free edge 48e of the panel from which the locking tab projects.
  • Fold line 'F' gives the tab more flexibility so that the tab can bend more readily to facilitate guiding the tab into a cooperating locking slit.
  • This modification is applicable to all the locking tabs disclosed herein and it is to be understood that the location of the fold line 'F' at the base of the locking tab may not necessarily be in precise alignment with the edge 48e.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Gas-Filled Discharge Tubes (AREA)
  • Jib Cranes (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Fertilizers (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
  • Packages (AREA)
  • Finishing Walls (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Cartons (AREA)

Claims (11)

  1. Zuschnitt zum Ausbilden eines Umschlingungskartons mit einer Anordnung zum Miteinanderverbinden eines Wandpaares (10, 12) des Zuschnittes, die eine Verriegelungslasche (14), die von einer Stirnseitenkante (16) einer der Wände (10) hervorragt, und einen Verriegelungsschlitz (28), der benachbart einer Stirnseitenkante (12a) der anderen der Wände (12) angeordnet ist, aufweist, wobei die Verriegelungslasche einen Einführhauptabschnitt (18) und einen mit einem nachzuziehenden Kantenabschnitt (22) versehenen Verankerungsabschnitt aufweist, wobei der Verriegelungsschlitz entlang einer Faltlinie (30) angeordnet ist, die nach innen beabstandet ist und sich im wesentlichen parallel zur Stirnseitenkante der anderen Wand erstreckt, um einen faltbaren Randstreifen (32) zu begrenzen, wobei der Verriegelungsschlitz in Bezug auf die Faltlinie derart angebracht ist, daß der Verriegelungsschlitz vorübergehend geöffnet ist, wenn der Randstreifen aus der Ebene der anderen der Wände herausgefaltet ist, so wie der Karton ausgebildet wird, um das Einstecken der Verriegelungslasche zu erleichtern, und eine Anlagekante, aufweist, dadurch gekennzeichnet, daß der Verankerungsabschnitt durch eine Lasche gebildet ist, die entlang einer Faltlinie an einer Seite des Hauptabschnittes der Verriegelungslasche angelenkt und in Überlappungsbeziehung mit dem Hauptabschnitt gefaltet ist, wenn die Verriegelungslasche in den Verriegelungsschlitz eingesteckt wird, so daß zumindest ein Abschnitt der nachzuziehenden Kante im wesentlichen parallel zu wenigstens einem Abschnitt des Verriegelungsschlitzes liegt, wenn die Verriegelungslasche in den Verriegelungsschlitz eingesteckt worden ist.
  2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Faltlinie (22), an der die Verankerungslasche am Hauptabschnitt (18) der Verriegelungslasche angelenkt ist, in Bezug auf eine gedachte Linie geneigt ist, die in Einsteckrichtung der Verriegelungslasche in den Verriegelungsschlitz gezogen ist, so daß die Seitenkante (22) der Verriegelungslasche, die durch die Faltlinie durch Falten der Verankerungslasche zum freien Vorderende (26) der Verriegelungslasche gebildet wird, in Bezug zur entgegengesetzten Kante der Verriegelungslasche konvergent ist.
  3. Anordnung nach Anspruch 2, dadurch gekennzeichnet, daß der Neigungswinkel in Bezug zur gedachten Linie ungefähr 15° beträgt.
  4. Anordnung nach irgendeinem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß die Seitenkante der Verriegelungslasche gegenüber der Kante, an der die Verankerungslasche angelenkt ist, krummlinig ist.
  5. Anordnung nach irgendeinem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß die nachzuziehende Kante der Verriegelungslasche in Bezug auf eine Linie geneigt ist, die senkrecht zu einer gedachten Linie verläuft, die in Einsteckrichtung der Verriegelungslasche in den Verriegelungsschlitz gezogen ist.
  6. Anordnung nach Anspruch 5, dadurch gekennzeichnet, daß der Neigungswinkel ungefähr 30° beträgt.
  7. Anordnung nach irgendeinem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß sich eine Faltlinie quer zur Verriegelungslasche benachbart dem Ende der ersten Wand, von der Verriegelungslasche hervorragt, erstreckt.
  8. Anordnung nach irgendeinem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß der Verriegelungsschlitz (28) im allgemeinen in Form eines flachen "V" ausgebildet ist, die sich in den Randstreifen (32) erstreckt und die Faltlinie (30) durchbricht.
  9. Anordnung nach Anspruch 8, dadurch gekennzeichnet, daß der Verriegelungsschlitz asymmetrisch ist, so daß die Schenkel (70b, 76) des "V" unterschiedliche Längen aufweisen.
  10. Anordnung nach Anspruch 8, dadurch gekennzeichnet, daß der Verriegelungsschlitz symmetrisch ist, so daß die Schenkel (70b, 76) des "V" im wesentlichen gleiche Längen aufweisen.
  11. Anordnung nach Anspruch 8, dadurch gekennzeichnet, daß der Verriegelungsschlitz (28) ein erstes Teil (34), daß sich zur Stirnseitenkante (12a) der anderen Wand (12) in einem spitzen Winkel in Bezug zur Faltlinie erstreckt, ein Umkehrteil (36), das sich zurück erstreckt, um die Faltlinie in einem spitzen Winkel in Bezug dazu zu treffen, und ein Endteil (38) aufweist, das sich im wesentlichen entlang der Faltlinie ersteckt.
EP85300366A 1984-01-20 1985-01-18 Verriegelungsmittel für Wandungen Expired - Lifetime EP0150117B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT85300366T ATE81094T1 (de) 1984-01-20 1985-01-18 Verriegelungsmittel fuer wandungen.
EP91202323A EP0464960B1 (de) 1984-01-20 1985-01-18 Verriegelungsmittel für Wandungen

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB848401610A GB8401610D0 (en) 1984-01-20 1984-01-20 Panel interlocking means
GB8401610 1984-01-20
GB8430697 1984-12-05
GB848430697A GB8430697D0 (en) 1984-01-20 1984-12-05 Panel interlocking means

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP91202323.1 Division-Into 1985-01-18

Publications (3)

Publication Number Publication Date
EP0150117A2 EP0150117A2 (de) 1985-07-31
EP0150117A3 EP0150117A3 (en) 1987-01-21
EP0150117B1 true EP0150117B1 (de) 1992-09-30

Family

ID=26287212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85300366A Expired - Lifetime EP0150117B1 (de) 1984-01-20 1985-01-18 Verriegelungsmittel für Wandungen

Country Status (6)

Country Link
EP (1) EP0150117B1 (de)
AT (2) ATE160547T1 (de)
CY (1) CY1879A (de)
DE (2) DE3588170T2 (de)
HK (1) HK129795A (de)
MY (1) MY102146A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2639918B1 (fr) * 1988-12-01 1991-06-07 4 P Emballages France Emballage en carton ou analogue comportant des moyens de verrouillage mecanique
ES2325096T3 (es) * 2005-01-31 2009-08-25 Meadwestvaco Packaging Systems Llc Medios de bloqueo para paneles de cajas de carton.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1108464A (en) * 1912-04-30 1914-08-25 Fred W Morey Locking attachment for boxes.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3191845A (en) * 1963-05-13 1965-06-29 Wainberg Daniel Containers
US3497924A (en) * 1967-10-02 1970-03-03 Mead Corp Panel interlocking means
FR2418158A1 (fr) * 1978-02-23 1979-09-21 Mead Corp Dispositif d'emballage a flan de carton ou analogue
FR2447863A1 (fr) * 1979-02-01 1980-08-29 Normande Carton Ondule Plateaux destines, en particulier, au transport de fruits et legumes
US4216897A (en) * 1979-04-09 1980-08-12 Kliklok Corporation Lock for a corner lock carton

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1108464A (en) * 1912-04-30 1914-08-25 Fred W Morey Locking attachment for boxes.

Also Published As

Publication number Publication date
DE3588170T2 (de) 1998-03-26
DE3588170D1 (de) 1998-01-08
HK129795A (en) 1995-08-24
EP0150117A3 (en) 1987-01-21
ATE81094T1 (de) 1992-10-15
DE3586686T2 (de) 1993-03-25
MY102146A (en) 1992-04-30
DE3586686D1 (de) 1992-11-05
CY1879A (en) 1996-04-05
ATE160547T1 (de) 1997-12-15
EP0150117A2 (de) 1985-07-31

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