EP0367092B1 - Carton - Google Patents

Carton Download PDF

Info

Publication number
EP0367092B1
EP0367092B1 EP19890119828 EP89119828A EP0367092B1 EP 0367092 B1 EP0367092 B1 EP 0367092B1 EP 19890119828 EP19890119828 EP 19890119828 EP 89119828 A EP89119828 A EP 89119828A EP 0367092 B1 EP0367092 B1 EP 0367092B1
Authority
EP
European Patent Office
Prior art keywords
line
pull tab
carton
notched
half notched
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
EP19890119828
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0367092A1 (en
Inventor
Isao Saito
Takeo Suzuki
Muneki C/O Jujo Paper Co. Ltd. Fukumoto
Kenji C/O Jujo Paper Co. Ltd. Kato
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.)
SANWA SHIGYO KABUSHIKI KAISHA
YUGEN KAISHA MUTSUMI KAGAKU
Nippon Paper Industries Co Ltd
Original Assignee
MUTSUMI KAGAKU YK
SANWA SHIGYO KK
Nippon Paper Industries Co Ltd
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
Application filed by MUTSUMI KAGAKU YK, SANWA SHIGYO KK, Nippon Paper Industries Co Ltd filed Critical MUTSUMI KAGAKU YK
Publication of EP0367092A1 publication Critical patent/EP0367092A1/en
Application granted granted Critical
Publication of EP0367092B1 publication Critical patent/EP0367092B1/en
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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/70—Break-in flaps, or members adapted to be torn-off, to provide pouring openings
    • B65D5/708—Separate tearable flexible elements covering a discharge opening of a container, e.g. adhesive tape

Definitions

  • the present invention relates to cartons and more particularly to a carton whose opening part can be covered airtightly again after it is opened once.
  • An object of the present invention is therefore to provide a less bulky, easy-to-handle carton that can be opened simply and resealed after it is opened.
  • a carton according to the present invention comprises the features compiled in claim 1.
  • the outer surface of the wall plate enclosed with the outer half notched line and the inner surface enclosed with the inner half notched line are torn off to join the pull tab if the peelable portion thereof is peeled off.
  • the contents of the carton can be poured out through the opening thus formed. Since the pull tab is stopped by the unpeelable portion from being peeled off, the opening can be covered with the pull tab when it is put back again after the required amount of contents is taken out.
  • Fig. 1 is a perspective view of a carton embodying the present invention.
  • Fig. 2 is a partial perspective view of the carton embodying the present invention without the pull tab.
  • Fig. 3 is a partial sectional view of the wall plate with the pull tab stuck thereto.
  • Figs. 4, 5 and 6 are partial elevational views illustrating modified embodiments of the pull tab.
  • Fig. 7 is a partial perspective view of the carton left open.
  • FIGs. 1 - 3 show a carton having a gabled top portion for heat-sealing.
  • a wall plate 2 of a carton body 1 is made of paper such as kraft paper, both sides of which are coated with wax, polyethylene or any other adequate substance, so that a carton in various configurations may be formed.
  • An inner half notched line 3 is cut as deep as substantially half the plate thickness in a proper portion of the wall plate, i.e., in the side of the top portion of the body, to form an opening, whereas an outer half notched line 4 is cut as deep as substantially half the plate thickness in such a manner as to encircle the outer periphery of the inner half notched line( Figs. 2, 3).
  • the inner and outer half notched lines 3, 4 should be cut in order for the notches to have predeteremined depth from the inner and outer surfaces of the plate,or for the deepest point of each half notched line to be disposed adjacent to the inner and outer surfaces of the plate, i.e., deeply enough to be over the deepest point of each half notched line. With this arrangement, the areas enclosed with the inner and outer half notched lines 3, 4 are readily torn off.
  • the gap between the inner and outer half notched lines 3, 4 may be changed with the kind of contents, the shape of the carton body, the strength of the paper material and the like.
  • the inner and outer half notched lines 3, 4 are made annular; a part of the outer half notched line 4 is disposed adjacent the folding line; and the area enclosed therewith is shifted toward a pull tab 5 when the wall plate is torn off, they may be substantially U-shaped so as to be partially coupled to the wall plate when opened.
  • the pull tab 5 is stuck to the wall plate in such a manner as to cover the whole perimeter of the outer half notched line 4.
  • the pull tab 5 may be made of any composite film, comprising a plastic laminated layer 8 glued via an adhesive layer 7 to metal foil 6 such as aluminum foil as shown in Fig. 3.
  • An adhesive layer 9 is provided on the undersurface of the laminated layer 8 so that the pull tab 5 is peelably stuck to the wall plate.
  • the plastic laminated layer 8 is prepared by stretching a plurality of plastic films (two sheets of such films in this embodiment) in the diagonal direction and integrally joining them so as to make the direction of stretch cross each other.
  • the plastic laminated layer 8 is superior in tear strength, impact strength, etc. to paper or any other plastic material.
  • the aluminum foil 6 acts on the pull tab so that it curves away from the opening part when the pull tab is peeled off.
  • the pull tab 5 is provided with a peelable portion 10 and an unpeelable portion 11 which stops the peeling action.
  • the free end of the peelable portion 10 is disposed on the opposite side of the folding line to which a part of the outer half notched line 4 is adjacent, and may be formed with a non-adhesive layer and a peeling guide 12 having a tip to make it readily peelable.
  • Notched lines 13, 13 are provided in both sides of the peelable portion 10 toward the unpeelable portion 11 and there is further formed a notched portion 14 communicating with each notched line 13 to disperse the force applied in the peeling direction. As shown in Fig.
  • each notched line 13 is curved from the side to the inside of the pull tab, linearly extended from the inner end of the curved portion 15 substantially along the side of the pull tab to form an outwardly-directed portion 17 inclined from the end of the inner portion 16 toward the side thereof, and is provided with an arcuate notch 14 at the end of the outwardly-directed portion.
  • the notched lines 13 are not limited to those shown as above, but may have various configurations, e.g., as shwon in Figs. 4-6, substantially L-shaped notched lines 13, 13 are formed, each having a line curved in a direction different from the direction in which the notched line is provided at its inner end, i.e., an arcuate notch 14 similar to a keyhole (Fig.
  • Notched lines 13, 13 are otherwise formed in the diagonal direction, each having a small circular notch 14 at its inner end (Fgi. 5). Further, notched lines 13, 13 are linearly cut along the respective sides of the peelable portion 10, each having a small circular notch 14 within the unpeelable portion 11 wider than the peelable portion (Fgi. 6). Thus, the notched lines may be so shaped as to facilitate the peeling action, whereas the notches may be so structured as to effectively stop the peeling action.
  • the unpeelable portion may be provided on both sides or outer periphery of the peelable portion and the pull tab may be peeled off from the outside of one of the peelable portions, whereas the peeling action may be stopped on the boundry of the opposite unpeelable portion (not shown).
  • the adhesive layer 9 to which the pull tab 5 is stuck is provided on the tab side, it may be provided on the wall plate side.
  • the adhesive layer stuck to the area enclosed with the outer half notched line 4 is arranged so that its adhesion is set greater than the peeling needed to peel the outer portion 18 enclosed with the outer half notched line 4 and the inner portion 19 enclosed with the inner half notched line 3 from the wall plate. As indicated, the outer and inner portions 18, 19 are joined to pull tab when the peelable portion thereof is peeled off.
  • the carton body 1 thus structured is filled with contents and the top portion thereof is sealed as usual.
  • the peelable portion of the pull tab 5 is peeled off.
  • the outer half notched line 4 starts being peeled off from the layers adjacent the folding line's side.
  • the outer portion 18 enclosed with the outer half notched line 4 and the inner portion 19 enclosed with the inner half notched line 3 are torn off the wall plate to join the pull tab.
  • the opening 20 thus formed makes it possible to take out the contents by inclining the carton body (Fig. 7).
  • the opening part can be covered airtightly, provided the pull tab is put back to the original position after the contents are taken out.
  • the provision of the plastic laminated layer 8 minimizes the trouble caused by the pull tab whose notched lines have been torn off beyond the notches or by the pull tab totally peeled off.
  • the provision of the aluminum foil allows the pull tab to curve, thus preventing the contents from touching the pull tab even though the carton body is tilted.
  • the peripheral edge 21 of the opening part prevents the contents from touching the adhesive and therefore from being contaminated because the peripheral edge 21 of the opening part is torn off, together with the wall plate without the adhesive layer.
  • the carton body can be resealed without trouble since the adhesive surface is protected from being wet.
  • the carton according to the present invention is simple in construction, less bulky, easy-to-handle and readily resealable, whereby it is fit for use in containing various kinds of beverages, viscous substances, powders, solids and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
EP19890119828 1988-10-31 1989-10-25 Carton Expired - Lifetime EP0367092B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1988141130U JPH0523467Y2 (da) 1988-10-31 1988-10-31
JP141130/88 1988-10-31

Publications (2)

Publication Number Publication Date
EP0367092A1 EP0367092A1 (en) 1990-05-09
EP0367092B1 true EP0367092B1 (en) 1993-09-22

Family

ID=15284865

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890119828 Expired - Lifetime EP0367092B1 (en) 1988-10-31 1989-10-25 Carton

Country Status (4)

Country Link
EP (1) EP0367092B1 (da)
JP (1) JPH0523467Y2 (da)
DE (1) DE68909368T2 (da)
ES (1) ES2044016T3 (da)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2240095A (en) * 1990-01-18 1991-07-24 Robinson & Sons Ltd Tamper evident package
SE505294C2 (sv) * 1994-12-13 1997-07-28 Regath Hb Återförslutbar förpackning med organ för indikering om förpackningen är bruten
GB9513009D0 (en) * 1995-06-19 1995-08-30 Bowater Pkl Ltd Carton closure
US5897210A (en) * 1997-05-01 1999-04-27 Lever Brothers Company, Inc. Reclosable container
US6113271A (en) * 1999-03-11 2000-09-05 Prime Label & Screen, Inc. Resealable label flap including label stop
AU2002211086A1 (en) * 2000-10-03 2002-04-29 Weasy Pack International Ltd Flexible closure for a container
WO2002072439A1 (en) * 2001-03-14 2002-09-19 Ds Smith (Uk) Limited A layered closure device
JP2006136745A (ja) * 2006-02-06 2006-06-01 Eisai Co Ltd 薬用瓶の口金
GB2491646B (en) * 2011-06-10 2015-07-01 Paragon Labels Ltd A label,closure structure and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE383625B (sv) * 1973-06-14 1976-03-22 A R Rausing Sett att framstella, fylla och forsluta for flytande eller rinnande fyllgods avsedd forpackningsbehallare
US4032265A (en) * 1974-07-19 1977-06-28 United States Steel Corporation Suction stabilizer for reciprocating pumps and stabilizing method
US4723301A (en) * 1986-02-03 1988-02-02 Chang Sung Choi Container resealable sealing device construction
JPS6376634U (da) * 1986-11-10 1988-05-21

Also Published As

Publication number Publication date
ES2044016T3 (es) 1994-01-01
DE68909368D1 (de) 1993-10-28
JPH0523467Y2 (da) 1993-06-16
DE68909368T2 (de) 1994-04-28
JPH0263326U (da) 1990-05-11
EP0367092A1 (en) 1990-05-09

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