JP2008174262A - Flip-top type carton - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flip-top type carton having a pilfer-proof function. <P>SOLUTION: A zipper 13a in which a first weakening line α is projected toward a barrel front plate 13 from a cutting line γ with two separate ends forming starting points is provided on a non-forming part of the first weakening line α in a front connection piece 31 to the position at which a fore end of the zipper part is exposed from a lid front plate 13, and a connection is left on a part of the cutting line γ at the fore end of the exposed zipper part. After breaking the connection of the cutting line γ by pushing in the fore end of the zipper 13a on the barrel front plate 13, the covering lid is turned to cut the first weakening line and the second weakening line to perform unsealing. When the re-sealing is performed after the unsealing, a hole is opened in a front side to be able to determine at a glance whether or not a carton is once unsealed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention belongs to the technical field of carton made of cardboard, and particularly relates to a flip top type carton having a cover lid that is rotated by a hinge.

Conventionally, various cartons formed by assembling a single paperboard have been used, but what can be re-sealed after opening is a so-called flip-top type carton having a cover that rotates by a hinge. in use. Among them, there is a flip top type carton of the type in which the folded piece folded on the back side of the front plate of the cover lid is cut and opened by lifting the front plate of the cover lid, and this type of carton is opened after opening When the cover lid is tilted forward, the cut-back folded piece is caught on the back surface of the cover lid so that the cover lid is locked and the lid is closed.
Japanese Utility Model Publication No. 50-67015 Japanese Patent Laid-Open No. 11-79242

  Among conventional flip top type cartons, the type of carton that has resealability due to the locking means as described above cannot be confirmed from the appearance if the lid is opened after opening. . Therefore, sticking or shrinking is necessary to prevent tampering.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a flip-top carton having a function to prevent tampering.

In order to achieve the above object, a flip top type carton of the present invention comprises a trunk part in which a trunk front plate, a trunk side plate, a trunk rear plate, and a trunk side plate are sequentially connected via a folding line, The cover is provided at the top of the body, and covers the body front plate and a part of the body side plate by rotating around the boundary with the body rear plate as a hinge part, and the bottom part formed by closing the lower part of the body A flip top carton having
The cover lid is a lid top plate that is connected to the trunk rear plate via a fold line, and a lid front plate that is continuous via a front connecting piece that is folded back between the trunk front plate, Consists of a lid side plate that is connected to the front plate of the lid portion and that is connected to the trunk side plate via a side connecting piece that is folded back.
A first weakening line is formed on the front connecting piece over the entire width with an unformed part left in the middle, and a second weakening line is formed on the connecting part of the side connecting piece and the body side plate. The front connecting piece is bonded to the lid front plate at a portion closer to the lid front plate than the first weak line, and the side connecting piece is bonded to the lid side plate,
A zipper that protrudes toward the front plate of the trunk portion by a cut line starting from two ends where the first weakening line is interrupted is formed at an unformed portion of the first weakening line in the front connecting piece. Is provided to a position where it is exposed from the lid front plate, and a part of the exposed cutting line at the tip of the zipper part is left connected,
After pushing the tip of the zipper to break the connection of the cut line, the first weakening line and the second weakening line are cut by rotating the cover lid with the boundary with the body rear plate as a hinge part. It can be opened, and when the cover lid is tilted forward after opening, the cover lid is locked by being caught by the front connecting piece cut by the first weakening line.

  The flip top type carton according to the present invention has a first weakening line and a second weakening by rotating the cover lid after pushing the tip of the zipper on the front plate of the trunk to break the connection of the cut lines. Since the wire is cut and opened, a hole is opened in the front when it is resealed after opening, so it can be determined at a glance whether it has been opened once.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing an example of a flip top carton according to the present invention, and FIG. 2 is a plan view of a blank forming the flip top carton of FIG.

  The flip-top carton A in FIG. 1 is a unit in which a quadrangular columnar body and a flip-top cover are integrated, and is manufactured by assembling the blank B shown in FIG.

  In the blank B, as shown in the figure, the adhesive margin flap 11, the trunk side plate 12, the trunk front plate 13, the trunk side plate 14, and the trunk rear plate 15 that form the trunk portion are bent lines a, b, c, and d. The part which forms a cover lid is continuously provided in the upper part.

  The cover lid part includes a lid front plate 21 having substantially the same width as the trunk front plate 13, a lid top plate 22 connected to the upper side of the lid front plate 21 via a fold line e, and a lid front plate. 21 are lid side plates 23 and 24 connected to both sides of the side plate 21 via folding lines f and g, and bent pieces 25 and 26 are connected to the top sides of the lid side plates 23 and 24 via folding lines h and i, respectively. It is made up of.

  A connecting portion Z having substantially the same height as the lid front plate 21 and the lid side plates 23 and 24 is provided between the trunk portion and the cover lid portion. The connecting portion Z is formed between the front connecting piece 31 provided between the trunk front plate 13 and the lid front plate 21 via the folding lines j and k, and between the trunk side plate 12 and the lid side plate 23, respectively. The side connecting piece 32 provided via the second weakening line β and the folding line l, and the side provided between the trunk side plate 14 and the lid side plate 24 via the second weakening line β and the folding line m, respectively. Hexagonal openings 31a and 31b are formed between the front connecting piece 31 and the side connecting pieces 32 and 33, respectively.

  A first weakening line α is formed across the entire width of the front connecting piece 31 with an unformed portion left in the middle. The unformed portion is provided with a zipper 13a that protrudes toward the body front plate 13 by a cut line γ starting from two ends where the first weakening line α is interrupted. The tip of the zipper 13a is provided up to a position where the semicircular tip is exposed from the lid front plate 21 when the carton is assembled. Further, as shown in the figure, the exposed cutting line γ at the tip of the zipper part is connected to three places (portions where there is no cutting line). Further, a circular hole 21a is formed at a fold line k that is a boundary between the lid front plate 21 and the front connecting piece 31, and this has a semicircular notch in the lower front portion of the cover when the carton is assembled. The notch is formed so as to form a circular shape with the semicircular tip of the zipper 13a.

  Further, a bent piece 16 is continuously provided on the lower side of the trunk side plate 12 via a folding line n, and a trunk bottom plate 17 is provided on the lower side of the trunk front plate 13 via a folding line o. 14, a bent piece 18 is continuously provided via a folding line p, and a trunk inner bottom plate 19 is continuously provided to a lower side of the trunk rear plate 15 via a folding line q. A lid connecting plate 20 is connected to the upper side via a broken line r.

  The blank B is sacked as a whole after the connecting portion Z is folded in a Z shape at the folding line j and the second weakening line β and the folding line k. That is, first, the connecting portion Z is bent in a Z shape so that the covering lid portion overlaps the body portion, and the front connecting piece 31 is the lid portion at the portion closer to the lid front plate 21 than the first weakening line α. The side connecting pieces 32 and 33 are bonded to the lid side plates 23 and 24, respectively, while being bonded to the front plate 21. Next, the body portion is bent at the folding lines b and d in this superposed state, and the front side of the adhesive margin flap 11 is bonded to the rear side of the end portion of the body rear plate 15.

  The blank B thus sack pasted is supplied to the molding and filling machine and assembled into the paper carton A of FIG. The procedure is as follows. First, the folded blank B is raised in a rectangular tube shape, and then the folded pieces 25 and 26 of the cover lid portion are folded inward, and then the lid connecting plate 20 connected to the upper side of the trunk rear plate 15 is placed on the inner side. Then, the lid top plate 22 is folded, and the back surface of the lid top plate 22 is overlaid on the bent pieces 25 and 26 and the lid connecting plate 20 and sealed with hot melt or the like. After forming the covering lid part in this way, the top and bottom are reversed, the contents are filled from the bottom, and the bent pieces 16 and 18 at the bottom of the carton are folded inward, so that the trunk inner bottom plate 19 and the trunk bottom plate A carton is formed by bending 17 in order and pasting them together. Thereby, the flip top carton A shown in FIG. 1 is assembled. In addition, since there is an opening between the front connecting piece 31 and the side connecting pieces 32 and 33, even if the trunk portion and the lid portion are overlapped via the connecting portion Z, it is pasted into a sack or a rectangular tube shape as described above. You can easily wake up.

  When opening the flip top carton A, the tip of the zipper 13a on the trunk front plate 13 is pushed with a fingertip to break the connection of the cut line γ. Then, the fingertip is covered as it is, hung on the semicircular cutout at the lower front surface of the lid, and the cover lid is pulled up. Then, the first weakening line α and the second weakening line β are cut, and the cover lid is rotated using the folding line r at the boundary with the body rear plate 15 as a hinge portion as shown in FIG. Open with. The flip-top carton A opened in this way is because the folded piece 31a protrudes from the upper side of the trunk front plate 13 and a part of the front connecting piece 31 is missing on the back side of the lid front plate 21. Since there is a level difference, when the cover lid is tilted forward, the front cover piece 31 cut by the first weakening line α is caught and the cover lid is locked. Further, when the cover lid is pulled up, the cover lid can be opened by detaching with this catch.

  And in the state which resealed after opening, since the zipper 13 of the trunk | drum front board 13 has been fractured | ruptured, as shown in FIG. 4, the semicircle-shaped part from which the zipper 13 was removed, and the front surface of a cover lid A circular hole H is opened in front of the carton by the semicircular cutout at the bottom. Therefore, the flap type carton can be determined at a glance whether or not the flip top type A has been opened once by the presence or absence of the hole H, and thus has a function to prevent tampering. Further, the broken zipper 13 is connected to the front connecting piece 31 remaining on the cover lid side and is urged toward the back side of the cover lid by the restoring force of the portion of the fold line j, so that it becomes garbage. There is no such thing as an obstacle to opening and closing.

  Although the embodiments of the present invention have been described in detail above, the flip-top carton according to the present invention is not limited to the above-described embodiments at all, and various modifications can be made without departing from the spirit of the present invention. It is natural that this is possible.

It is a perspective view showing an example of a flip top type carton according to the present invention. It is a top view of the blank which forms the flip top type carton of FIG. It is a perspective view shown in the state which opened the flip top type carton of FIG. It is a perspective view shown in the state which resealed the flip top type carton of FIG.

Explanation of symbols

A Paper carton B Blank Z Connection part a-r Folding line α First weakening line β Second weakening line γ Cut line 11 Adhesive flap 12 Body side plate 13 Body front plate 13a Zipper 14 Body side plate 15 Body Rear plate 16 Folded piece 17 Body bottom plate 18 Bent piece 19 Body inner bottom plate 20 Lid connecting plate 21 Lid front plate 21a Circular hole 22 Lid top plate 23, 24 Lid side plate 25, 26 Folded piece 31 Front connecting piece 31a, 31b Opening 32, 33 Side connecting piece

Claims (1)

The trunk part is formed by connecting the trunk front plate, trunk side plate, trunk rear plate, trunk side plate sequentially through the fold line, and the upper part of the trunk part, and the boundary between the trunk rear plate and the hinge part A flip top type carton having a covering lid that covers a part of the body front plate and the body side plate by rotating as a bottom part that closes the lower part of the body part,
The cover lid is a lid top plate that is connected to the trunk rear plate via a fold line, and a lid front plate that is continuous via a front connecting piece that is folded back between the trunk front plate, Consists of a lid side plate that is connected to the front plate of the lid portion and that is connected to the trunk side plate via a side connecting piece that is folded back.
A first weakening line is formed on the front connecting piece over the entire width with an unformed part left in the middle, and a second weakening line is formed on the connecting part of the side connecting piece and the body side plate. The front connecting piece is bonded to the lid front plate at a portion closer to the lid front plate than the first weak line, and the side connecting piece is bonded to the lid side plate,
A zipper that protrudes toward the front plate of the trunk portion by a cut line starting from two ends where the first weakening line is interrupted is formed at an unformed portion of the first weakening line in the front connecting piece. Is provided to a position where it is exposed from the lid front plate, and a part of the exposed cutting line at the tip of the zipper part is left connected,
After pushing the tip of the zipper to break the connection of the cut line, the first weakening line and the second weakening line are cut by rotating the cover lid with the boundary with the body rear plate as a hinge part. A flip that can be opened, and when the cover lid is tilted forward after opening, the cover lid is locked by catching the front connecting piece cut by the first weakening line. Top type carton.

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