EP0150117A2 - Verriegelungsmittel für Wandungen - Google Patents

Verriegelungsmittel für Wandungen Download PDF

Info

Publication number
EP0150117A2
EP0150117A2 EP85300366A EP85300366A EP0150117A2 EP 0150117 A2 EP0150117 A2 EP 0150117A2 EP 85300366 A EP85300366 A EP 85300366A EP 85300366 A EP85300366 A EP 85300366A EP 0150117 A2 EP0150117 A2 EP 0150117A2
Authority
EP
European Patent Office
Prior art keywords
tab
locking
edge
slit
anchoring
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.)
Granted
Application number
EP85300366A
Other languages
English (en)
French (fr)
Other versions
EP0150117B1 (de
EP0150117A3 (en
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 EP91202323A priority Critical patent/EP0464960B1/de
Priority to AT85300366T priority patent/ATE81094T1/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 may, but need not be, 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 N° 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.
  • One aspect of the present invention provides an arrangement for securing together a pair of panels, 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, the locking tab and the locking slit being interengaged by relative sliding movement therebetween, said locking tab including an anchoring tab hinged to one side edge of a main portion of the locking tab and the locking tab being sized for insertion into said locking slit when the anchoring tab has been folded into overlapping relationship with said main portion of the tab, characterized in that the locking slit is formed so as to provide an abutment edge on said other panel which is engaged by a trailing edge of said locking tab when the locking tab has been inserted into the locking slit, the arrangement being such that the engagement is effective to maintain the panels locked together either when the anchoring tab remains in said folded overlapping relationship with said main portion or when the anchoring tab moves out of said overlapping arrangement.
  • the trailing edge of the anchoring tab has at least a portion-which lies substantially parallel to the abutment edge of the locking slit when the locking tab is engaged in the locking slit and the anchoring tab remains in said folded overlapping relationship with the main portion of the tab.
  • the trailing edge of the anchoring tab lies in a plane which is substantially perpendicular to the plane containing the abutment edge of the locking slit when the locking tab is engaged in the locking slit and the anchoring tab is upright with respect to the main portion of the tab.
  • the fold line by which the anchoring tab is hinged to the main portion of the locking tab is inclined with respect to a notional line depicting the direction of insertion of the locking tab into the locking slit so that the edge of the locking tab provided by the fold line upon folding of the anchoring tab is convergent with respect to the opposite edge of the locking tab towards the free end of the locking tab.
  • the angle of inclination with respect to said notional line is substantially 15°.
  • the edge of the locking tab opposite that edge to which the anchoring tab is hinged is curvilinear.
  • the trailing edge of the anchoring tab may be inclined with respect to a line which is perpendicular to the notional line depicting the direction of insertion of the locking tab into the locking slit.
  • the angle of inclination is substantially 30°.
  • 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 1 2.
  • 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 0 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. Hence, 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 0 (angle (oc) ) 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 hooded 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 folded anchoring tab automatically will return back into a more upright position as shown in Figure 5a whereby the trailing edge of the locking tab (more usually hooked edge 'h') at or adjacent fold line 54 is brought into a position in which it will abut against the abutment edge 68 of the locking slit when tension is applied to the panels in opposition to the locking direction.
  • the abutting engagement between trailing edge of the locking tab and abutment edge defined by the locking slit maintains the panels locked together.
  • the second modified construction shown in figures 6 and 7 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 68 a. -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 7.
  • the third modified construction shown in Figures 8 to 10 incorporates modifications to both the locking tab and locking slit as described below.
  • this embodiment is similar to the two immediately preceding embodiments and like parts are designated like reference numerals with the addition of suffix 'b ' .
  • 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 11 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 58c and 58c in which the edge 58c is angled so as to lie parallel to the abutment edge 68c.
  • the remaining part of the trailing edge 58c' given a steeper rake angle so that a clearance or safety angle 'Sa' as in the immediately preceding embodiment is produced.
  • a general formula for producing a trailing edge of the locking tab which will engage the abutment edge of the locking slit in parallel relationship may be expressed as follows:- where:- ' ⁇ ' is the angle between that part of the trailing edge of the locking tab which is to engage the abutment edge of the locking slit and the fold line by which the anchoring tab is hinged to the main portion of the locking tab;
  • ' ⁇ ' is the angle between a notional line depicting the locking direction of the locking tab and the fold line by which the anchoring tab is hinged to the main portion of the locking tab
  • ' ⁇ ' is the angle between a notional extension of the abutment edge of the locking slit and a line which is perpendicular to the notional line depicting the locking direction of the locking tab.
  • 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 58d which assists in avoiding incorrect folding of the anchoring tab 52d.
  • FIG 13 The embodiment shown in figure 13 is similar to that described with reference to figures 1 to 3 and like parts are designated like reference numerals with the addition of suffix 'a'.
  • the trailing edge 24a of the anchoring is given a rake angle 'f' as in the embodiments described with reference to FIGURES 6 and 7.
  • the abutment edge 38a of the locking slit is not angled so as to produce parallel abuting relationship with the trailing edge 24a but so that the trailing edge 24a overlaps both the abutment edge 38a and a portion of the return part 36a of the locking slit.
  • the abutment edge 38a engages the hooked part 'h' of the trailing edge of the locking tab to form a secure lock.
  • FIGURE 14 shows a locking.tab similar to that illustrated in FIGURE 10 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

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Jib Cranes (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Gas-Filled Discharge Tubes (AREA)
  • Fertilizers (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
  • Packages (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Cartons (AREA)
  • Finishing Walls (AREA)
EP85300366A 1984-01-20 1985-01-18 Verriegelungsmittel für Wandungen Expired - Lifetime EP0150117B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP91202323A EP0464960B1 (de) 1984-01-20 1985-01-18 Verriegelungsmittel für Wandungen
AT85300366T ATE81094T1 (de) 1984-01-20 1985-01-18 Verriegelungsmittel fuer 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 1984-02-20
GB848430697A GB8430697D0 (en) 1984-01-20 1984-12-05 Panel interlocking means
GB8430697 1984-12-05

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 true EP0150117A2 (de) 1985-07-31
EP0150117A3 EP0150117A3 (en) 1987-01-21
EP0150117B1 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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0371298A1 (de) * 1988-12-01 1990-06-06 4P Nicolaus Kempten GmbH Verpackung aus Karton od.dgl.
WO2006083941A1 (en) * 2005-01-31 2006-08-10 Meadwestvaco Packaging Systems Llc Interlocking means for carton panels

Citations (6)

* 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.
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
EP0016879A1 (de) * 1979-04-09 1980-10-15 Kliklok Corporation Schachtel mit Eckverriegelung

Patent Citations (6)

* 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.
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
EP0016879A1 (de) * 1979-04-09 1980-10-15 Kliklok Corporation Schachtel mit Eckverriegelung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0371298A1 (de) * 1988-12-01 1990-06-06 4P Nicolaus Kempten GmbH Verpackung aus Karton od.dgl.
FR2639918A1 (fr) * 1988-12-01 1990-06-08 4 P Emballages France Emballage en carton ou analogue comportant des moyens de verrouillage mecanique
WO2006083941A1 (en) * 2005-01-31 2006-08-10 Meadwestvaco Packaging Systems Llc Interlocking means for carton panels

Also Published As

Publication number Publication date
ATE81094T1 (de) 1992-10-15
EP0150117B1 (de) 1992-09-30
EP0150117A3 (en) 1987-01-21
ATE160547T1 (de) 1997-12-15
DE3588170T2 (de) 1998-03-26
DE3588170D1 (de) 1998-01-08
MY102146A (en) 1992-04-30
DE3586686D1 (de) 1992-11-05
CY1879A (en) 1996-04-05
HK129795A (en) 1995-08-24
DE3586686T2 (de) 1993-03-25

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