WO2008018535A1 - Boîte en carton avec bande déchirable - Google Patents

Boîte en carton avec bande déchirable Download PDF

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Publication number
WO2008018535A1
WO2008018535A1 PCT/JP2007/065595 JP2007065595W WO2008018535A1 WO 2008018535 A1 WO2008018535 A1 WO 2008018535A1 JP 2007065595 W JP2007065595 W JP 2007065595W WO 2008018535 A1 WO2008018535 A1 WO 2008018535A1
Authority
WO
WIPO (PCT)
Prior art keywords
cut
line
cardboard
cardboard box
tear strip
Prior art date
Application number
PCT/JP2007/065595
Other languages
English (en)
Japanese (ja)
Inventor
Minoru Kojima
Original Assignee
Rengo 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
Priority claimed from JP2007190775A external-priority patent/JP4758958B6/ja
Priority claimed from JP2007204152A external-priority patent/JP5069055B2/ja
Application filed by Rengo Co., Ltd. filed Critical Rengo Co., Ltd.
Publication of WO2008018535A1 publication Critical patent/WO2008018535A1/fr

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
    • 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
    • B65D5/4266—Folding lines, score lines, crease lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/08—Creasing
    • 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
    • B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing
    • B65D5/5405—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B50/20—Cutting sheets or blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/25—Surface scoring
    • B31B50/252—Surface scoring using presses or dies

Definitions

  • the present invention relates to a cardboard box having an opening tear strip.
  • FIG. 24 In general, as a wrap-round cardboard box for packaging beverage cans, as shown in FIG. 24, a pair of elevation plates 51 and flat plates 52 connected in series via ridges 50 are folded and integrated. Wrapped can C is used, a peripheral wall is formed by joining at passage piece 53, and end plates 54 and 55 extending respectively from standing plate 51 and flat plate 52 are bonded and sealed.
  • An opening tear strip 56 parallel to the ridge line 50 is provided on the elevation plate 51 of the cardboard box, and the tear strip 56 is also provided on the end plate 54 continuously. . Further, in the center of the upright plate 51, there is provided a cut start portion 57 that picks up an end portion of the tear strip 56 when opened.
  • the tear strip 56 is formed by two opposing straight cut lines 56a, and this cut line 56a is formed by a liner cut that cuts the liner on the back side when the corrugated cardboard is made of material. Can be put.
  • the cut 57a that forms the cut-off portion 57 is formed by punching the cardboard with a die! / When manufacturing a blank, the cutting board provided in the die is inserted so that the cardboard penetrates the front and back. Is
  • an object of the present invention is to provide a corrugated cardboard box that can prevent the phenomenon of bending at the tear line of the tear band during box making, can be easily opened by the tear band, and is less likely to swell when stacked. To do.
  • the present invention provides a tear strip for opening and a start portion thereof, in which an upright plate and a flat plate are connected via a ridge line, and parallel to the ridge line.
  • the corrugated cardboard box is made by folding up the vertical plate and the flat plate along the ridge line, and the tear band is formed by a wavy cut line, and the cut line is formed on the front and back of the cardboard. This was a lead ascending and cutting alternately between a full-cut portion that penetrated and a half-cut portion in which the corrugated ball was cut from the back side to the middle in the thickness direction.
  • a rib is provided on the elevation plate by pressing from the front side of the cardboard.
  • the cut line of the tear band is wavy, and the half cut part between all cut parts of the cut line is inserted from the back side of the corrugated board.
  • the corrugated cardboard is bent inward along the tear line of the tear strip, and it is bent accurately along the ridge line of the elevation plate and the flat plate, resulting in the occurrence of defective box making.
  • the cut line made in the elevation plate is wavy and pressed from the front side of the cardboard.
  • FIG. 2 is a perspective view showing the main part of the same die
  • FIG. 3 Enlarged perspective view showing the correspondence between the lead lift blade and the notch
  • FIG. 5 is a schematic sectional view showing a pressing state by the pressing member and the receiving member.
  • FIG.6 Diagram showing the direction in which the rib can be bent
  • FIG. 7 is a perspective view showing the assembled and sealed state of the cardboard box same as above.
  • FIG. 9 is a perspective view showing the assembled and sealed state of the cardboard box according to the second embodiment of the present invention. 10] Perspective view showing the assembled and sealed state of the cardboard box according to the third embodiment of the present invention. Side view showing various forms of blade
  • FIG.15 Enlarged detail of the elevation plate showing other forms of wavy cut lines
  • FIG. 17 Enlarged detail drawing showing other forms of wavy cut lines
  • FIG. 21 Partial back view of blank showing one embodiment of stepped ribs
  • FIG. 23 Schematic cross-sectional view showing the die for crushing
  • FIG. 24 is a perspective view showing an assembled sealed state of a conventional cardboard box.
  • This cardboard box is of a wrap round type in which 24 beverage cans are arranged in four rows of 6 in a row, and is formed from the blank shown in FIG. In this blank, each pair of elevation plates 2 and plane plates 3 are alternately connected via the ridge line 1, and the passage piece 4 is connected to one of the elevation plates 2 via the ridge line 1. Has been. End plates 5 and 6 are connected to both ends of the upright plate 2 and the flat plate 3, respectively.
  • the elevating plate 2 is provided with a tear strip 7 for opening parallel to the ridge line 1, and the tear strip 7 reaches the edge of the end plate 5. At the center of the upright plate 2, there is a cut start 8 that picks up the end of the tear strip 7 when opened!
  • the tear band 7 in the elevation plate 2 is formed by two wavy cut lines 7a that are periodically curved and symmetrical, and each cut line 7a penetrates the front and back of the cardboard.
  • the full cut portion 7b and the half cut portion 7c in which the cardboard is cut from the back side to the middle in the thickness direction are alternately interrupted, and a connecting portion 7d without cut is provided between the full cut portion 7b and the half cut portion 7c.
  • the lead has been increased.
  • the width of the tear band 7 is wide and the cut line 7a is closest to the ridge line 1 and the width of the tear band 7 is narrow and the cut line 7a is the ridge line On the farthest part from line 1 is the full cut 7b.
  • the full cut portion 7b is longer than the half cut portion 7c.
  • the wavelength A of the score line 7a be 40 mm to 80 mm, and match the diameter of the can.
  • the wave height B should be 5 mm to 15 mm, and the width C of the narrowest part of the tear band 7 should be 10 mm to 20 mm. Further, the wavelength A, the wave height B, and the width C may be changed every cycle.
  • the cut line of the tear band 7 at the ridges of the elevation plate 2 and the end plate 5 is a full cut line, and the cut line of the tear band 7 in the end plate 5 is It is assumed that the entire cut line is appropriately combined with the half cut line from the back of the cardboard!
  • the cut start portion 8 is formed by placing a full cut notch 8a penetrating the front and back of the cardboard into a deformed H shape substantially corresponding to the waveform.
  • the elevation plate 2 is pressed from the front side of the cardboard to bulge to the back side.
  • a plurality of ribs 9 in the step direction perpendicular to the ridgeline 1 are inserted in parallel at intervals.
  • the rib 9 is arranged on the outer side of the tear zone 7 corresponding to the apex where the cut line 7a is closest to the ridge line 1.
  • the die cutting die D for manufacturing this corrugated box is parallel to the straight belt-like pressing member 10 for inserting the ridge portion 1 of the upright plate 2 and the flat plate 3,
  • a corrugated lead scissor blade 11 is provided for inserting the corrugated cut line 7a of the tear zone 7, followed by a full cutting blade 12 for inserting the slit 8a of the start portion 8.
  • the face plate U that receives the blank sheet S from the front side at the time of punching is provided with a straight belt-like pressing member 13 for inserting the rib 9 on the pressing member 10 of the die D.
  • the high blade portion 11a and the low blade portion l ib are alternately formed in the blade tip portion, and the high blade portion 11a and the low blade portion are formed.
  • l Recess 11c is provided between ib.
  • the high blade portion 11a has a sheet S supported by a support material 15 such as cork.
  • the low blade part l ib cuts the sheet S from the back side to the middle in the thickness direction from the back side to the front side, and the full cut part 7b and the half cut part 7c of the cut line 7a are made.
  • the recess 11c is provided with an uncut connecting portion 7d between the full cut portion 7b and the half cut portion 7c where the sheet S cannot be cut, and thereby the buckling of the sheet S along the cut line 7a. A decrease in strength is prevented.
  • the pressing member 13 is pressed from the front side to the sheet S in a state where the back side is supported by the receiving member 14, and the front side is recessed, and the back side Ribs 9 bulging out are formed.
  • the sheet S with the ribs 9 is easily bent in the direction in which the ribs 9 are valleys on the front side, as shown in Fig. 6, but in the opposite direction, that is, the ribs on the front side. It will be difficult to bend in the direction where 9 becomes a mountain.
  • the die for inserting the wavy cut line 7a and the rib 9 as described above can be manufactured for a rotary die cutter as well as for a flat plate die cutter.
  • a pair of elevation plates are used along the ridge line 1 as shown in FIG. 2 and the flat plate 3 are bent, the accumulated can C is wrapped, a peripheral wall is formed by joining at the passage piece 4, and the end plates 5 and 6 are bonded and sealed.
  • the cut line 7a of the tear strip 7 is corrugated, and a half cut part 7c extending between all cut parts 7b is inserted from the back side of the cardboard.
  • the cut line 7a does not act as a hinge, and the corrugated cardboard is not easily bent inward along the cut line 7a of the tear strip 7, and is accurately bent along the ridge line 1 of the elevation plate 2 and the flat plate 3. Occurrence of box defects can be prevented.
  • the cut line 7a of the tear strip 7 and the cut 8a of the cut start portion 8 are put in the same die, so that the conventional corrugated structure in which the positional relationship does not deviate.
  • the defect rate can be greatly reduced.
  • the upright plate 2 is cut along the cut line 7a without being irregularly broken, and the wavy cut edge gives a visually graceful impression and is excellent in aesthetics. Stuff
  • the fact that the tear band 7 is formed by two symmetrical wavy cut lines 7a also suppresses the bending of the elevation plate 2 as in the case of the box making described above, and thus contributes to the prevention of body swelling.
  • the rib 9 corresponds to the apex where the cut line 7a is closest to the ridge line 1 in order to effectively prevent bending at the wavy cut line 7a during box making.
  • the rib 9 becomes longer. improves.
  • the rib 9 faces the outside along the horizontal line of the elevation plate 2 even if it is placed outside the tear strip 7 in a direction parallel to the ridgeline 1 Since the bending is prevented and only the inward bending is allowed, the effect of preventing the body swelling is improved.
  • the rib 9 may be provided in addition to the outside of the tear band 7.
  • the tear band 7 is bent by the rib 9 when opened and pulled. This may be difficult, so it is better to omit it if you want to emphasize openability. Also, when using thick cardboard with excellent strength, all ribs 9 may be omitted.
  • the cutting edge of the low blade portion l ib has a convex shape with a high central portion as shown in FIG. 11 (a), and a concave shape with a low central portion as shown in FIG. 11 (b). do it.
  • the shape may be inclined from one side to the other side, or may have a plurality of convex portions or concave portions as shown in FIG. 11 (d).
  • the connecting portion 7d that can be curved in an arc shape or a wave shape is not necessary, the concave portion 11c may be omitted.
  • the blade edge of the low blade portion 1 lb may be shifted in the blade thickness direction from the blade edge of the high blade portion 11a.
  • the half cut portion 7c is shifted from the line of the full cut portion 7b in the cut line 7a, so that the connecting portion 7d is secured long, The strength against bending can be improved, or the half-cut portion 7c can be shifted in the direction in which the fissure is likely to deviate so that the cut line 7a can be cut without interruption.
  • the line 7a and the start part 8 are made into a continuous sine wave shape corresponding to the can to be stored, and the lower cut line 7a is directed to the inside of the tear band 7, and the corrugated part is not moved to the outside at the time of tearing and breaking.
  • the entire cut portion 7b is made longer than the other portions, the cut edge of the lower portion remaining in the tray shape becomes beautiful.
  • the full cut portion 7b is intermittently connected through the connecting portion without going through the half cut portion 7c.
  • the cut line 7a is illustrated as being sinusoidally curved.
  • the cut line 7a is formed as a triangular wave having a straight slope portion as shown in FIG.
  • a trapezoidal shape having a slightly flat portion at the top may be used.
  • a full cut portion 7b is always positioned at the top of the corrugation, and the full cut portion 7b is bent so as to be smoothly connected to the half cut portions 7c on both sides. It is good to keep it.
  • the upper and lower cut lines 7a are of the same type, they are not necessarily the same type, and it is not always necessary to combine the sine wave shape, the triangular wave shape, and the trapezoidal shape. May be formed.
  • force S is an example in which the upper and lower cut lines 7a of the tear band 7 are both wavy, as shown in Fig. 19, only the lower part remaining at the time of opening display is the wavy cut line 7a,
  • the upper cut line 7e of the band 7 may be inclined from the start part 8 and extend along the upper ridge line 1.
  • the cut line 7e may be a zipper or a half cut line in which saddle-shaped cuts are intermittent.
  • the rib 9 that prevents the swollen body is illustrated with a vertical ascending line.
  • the rib 9 has an inclined portion, for example, a contour of a can. You can make it image.
  • a rib 9 having an area of a certain range is provided by crushing the core of the cardboard in a planar shape, for example, You can make it look like the storage state of the can!
  • a force exemplifying a rectangular parallelepiped corrugated cardboard box whose ridges are bent at right angles, respectively, has an octagonal cylindrical peripheral wall in which chamfered slopes are formed on these ridges.
  • a similar configuration can be applied to a cardboard box.
  • a tear band similar to the above is used on the vertical plate.
  • a plurality of tear bands may be provided in parallel in the height direction of the elevation plate so that they can be opened in multiple stages.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)

Abstract

L'invention concerne une boîte en carton facile à ouvrir à l'aide d'une bande déchirable sans entraîner la formation d'une boîte de qualité inférieure. Dans la boîte en carton selon l'invention, une plaque de surface verticale (2) et une plaque de surface horizontale (3) sont formées de façon continue par l'intermédiaire d'une règle saillante (1), une bande déchirable non scellée (7) et sa partie de départ (8) parallèle à la règle saillante (1) sont disposées, et la plaque de surface verticale (2) et la plaque de surface horizontale (3) sont pliées le long de la règle saillante (1) pour former une boîte, la bande déchirable (7) étant constituée d'une ligne de coupe en forme d'onde (7a), cette ligne de coupe (7a) étant utilisée comme règle de guidage où des parties coupées entières (7b) pénètrant à travers les surfaces avant et arrière du carton, et des parties coupées à moitié (7c) qui coupent le carton du côté de la surface arrière jusqu'au milieu dans le sens de l'épaisseur sont formées alternativement de façon intermittente. Pendant la fabrication de la boîte, le carton est difficile à plier vers l'intérieur au niveau de la ligne de coupe (7a) de la bande déchirable (7) et est plié avec précision le long de la règle saillante entre la plaque de surface verticale (2) et la plaque de surface horizontale (3). La relation de position entre la bande déchirable (7) et la partie de départ (8) n'est pas déviée et, à l'endroit non scellé, lorsque la bande déchirable (7) est tirée à partir de la partie de départ (8), le carton est coupé de telle sorte que les parties coupées entières (7b) sont connectées le long des parties coupées à moitié (7c).
PCT/JP2007/065595 2006-08-09 2007-08-09 Boîte en carton avec bande déchirable WO2008018535A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP2006216646 2006-08-09
JP2006-216646 2006-08-09
JP2007-054369 2007-03-05
JP2007054369 2007-03-05
JP2007190775A JP4758958B6 (ja) 2006-08-09 2007-07-23 引裂帯付き段ボール箱の抜型
JP2007-190775 2007-07-23
JP2007-204152 2007-08-06
JP2007204152A JP5069055B2 (ja) 2006-08-09 2007-08-06 引裂帯付き段ボール箱

Publications (1)

Publication Number Publication Date
WO2008018535A1 true WO2008018535A1 (fr) 2008-02-14

Family

ID=39033064

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/065595 WO2008018535A1 (fr) 2006-08-09 2007-08-09 Boîte en carton avec bande déchirable

Country Status (1)

Country Link
WO (1) WO2008018535A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009262995A (ja) * 2008-04-30 2009-11-12 Rengo Co Ltd 引裂帯付き段ボール箱
JP2010017954A (ja) * 2008-07-11 2010-01-28 Nippon Die Steel Kk 段ボールの抜型
JP2010052049A (ja) * 2008-08-26 2010-03-11 Nippon Die Steel Kk 抜型

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61638A (ja) * 1984-06-07 1986-01-06 株式会社　竹村商店 裁断加工用原反生地とその製造方法
JPH11171172A (ja) * 1997-12-10 1999-06-29 Rengo Co Ltd ジッパ−カットの段ボ−ル箱
JP2003205935A (ja) * 2002-01-16 2003-07-22 Rengo Co Ltd 包装箱
JP2005118900A (ja) * 2003-10-14 2005-05-12 Tsukatani Hamono Seisakusho:Kk 成形シートの加工用刃型

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61638A (ja) * 1984-06-07 1986-01-06 株式会社　竹村商店 裁断加工用原反生地とその製造方法
JPH11171172A (ja) * 1997-12-10 1999-06-29 Rengo Co Ltd ジッパ−カットの段ボ−ル箱
JP2003205935A (ja) * 2002-01-16 2003-07-22 Rengo Co Ltd 包装箱
JP2005118900A (ja) * 2003-10-14 2005-05-12 Tsukatani Hamono Seisakusho:Kk 成形シートの加工用刃型

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009262995A (ja) * 2008-04-30 2009-11-12 Rengo Co Ltd 引裂帯付き段ボール箱
JP2010017954A (ja) * 2008-07-11 2010-01-28 Nippon Die Steel Kk 段ボールの抜型
JP2010052049A (ja) * 2008-08-26 2010-03-11 Nippon Die Steel Kk 抜型

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