JP5145942B2 - Flip top carton - Google Patents

Description

  The present invention belongs to the technical field of cartons made of sheet-like materials such as cardboard and plastic sheets as well as paperboard, and particularly relates to a flip top type carton having a covering 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. It is used. 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, the flip-top carton of the present invention comprises a barrel-shaped trunk formed by connecting a trunk front plate, left and right trunk side plates, and a trunk rear plate, and an upper portion of the trunk. And a cover lid that covers a part of the body front plate and the left and right body side plates by turning the boundary with the body rear plate as a hinge part, and a bottom part that closes the lower part of the body part, A flip top type carton having a cover lid that is connected to a lid connecting plate that is connected to the upper side of the trunk rear plate, and is connected to the trunk rear plate via a folding line that becomes a hinge portion. a lid top plate which is, as well as continuously provided to the lid top panel, a lid portion front plate that is continuously provided on the body portion front plate through the front connecting piece folded back between the barrel front plate, communicating with respectively continuously provided to the lid top panel and the lid front plate, via a lateral connecting piece folded back between the barrel plate in the barrel portion side plate The front connecting piece is formed with a first breaking line near the body front plate, and the side connecting piece and the body side plate are connected to each other. A second break line is formed in the part, the front connecting piece is bonded to the lid front plate at a portion closer to the lid front plate than the first break line, and the left and right side connecting pieces are respectively left and right And at least one of the left and right side connecting pieces and the front connecting piece is provided with a free band-like portion having a predetermined width to be connected to the trunk portion via a fold line. The breaking region connected to the belt-like portion via a fold line is divided into at least one of the left and right lid side plates and the lid front plate.

  In the flip top type carton of the present invention, when the cover lid is rotated at the time of opening, the first breaking line and the second breaking line are cut and opened, but at the same time, the belt-like portion is pulled while being reversed. In the case where the rupture area of the cover lid that is connected to the band-shaped part is broken and the rupture area on the front side of the cover lid protrudes sideways when resealed after opening, or the rupture area is removed together with the band-shaped part Can be judged 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 trunk side plate 11, the trunk front plate 12, the trunk side plate 13, the trunk rear plate 14, and the adhesive margin flap 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 12, 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 C having the same height as the lid portion front plate 21 and the lid portion side plates 23 and 24 is provided between the trunk portion and the covering lid portion. The connecting portion C includes a front connecting piece 31 provided between the trunk front plate 12 and the lid front plate 21 via fold lines j and k, and a first portion between the trunk side plate 11 and the lid side plate 23. 2 and the side connecting piece 32 provided through the broken line l and the side provided between the body side plate 13 and the lid side plate 24 through the second broken line β and the broken line m. It is comprised by the side connection piece 33, and opening x, y is formed between the front connection piece 31 and the side connection pieces 32 and 33, respectively.

  In the front connecting piece 31 provided between the trunk front plate 12 and the lid front plate 21, a first breaking line α is formed near the trunk front plate 12. In the example shown in the drawing, this breaking line α has zipper continuous on both sides of the central cut line, and can be easily broken by pulling up and down.

  One side connecting piece 32 of the side connecting pieces 32, 33 is a band-like portion 32a having a predetermined width connected to the body side plate 11 via a folding line γ at an end near the front connecting piece 31 and having both sides free. In the lid side plate 23, a broken region 23a that is continuous with the belt-like portion 32a via a fold line l is defined. The fracture region 23a is partitioned by a semicircular cut line with a midway. In addition, in the belt-like portion 32a, two lateral fold lines are formed so that this portion can be easily bent.

  Also, a bent piece 16 is continuously provided on the lower side of the trunk side plate 11 via a folding line n, and a trunk bottom plate 17 is provided on the lower side of the trunk front plate 12 via a folding line o. A bent piece 18 is connected to the lower side of the body 13 via a fold line p, and a body inner bottom plate 19 is connected to the lower side of the body rear plate 14 via a fold line q. A lid connecting plate 20 is connected to the upper side via a broken line r.

  The blank B is sack pasted after the connecting portion C is folded in a Z shape at the folding line j, the second breaking line β, and the folding lines k, l, m. That is, first, the connecting portion C is bent in a Z shape so that the covering lid portion overlaps on the trunk portion, and the front connecting piece 31 is covered with the lid portion at the portion closer to the lid front plate 21 than the first breaking 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 a and c in this superposed state, and the front side of the adhesive margin flap 15 is bonded to the rear side of the end portion of the body side plate 11.

  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 square 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 14 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 are openings x and y 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 C, the sacking or cornering is performed as described above. You can easily wake up the tube.

  When opening the flip top type carton A, the fingertip is put on the lower part of the front surface of the cover and the cover is lifted. Then, the first break line α and the second break line β are cut, and as shown in FIG. 3, the covering lid rotates with the folding line r at the boundary with the body rear plate 14 as a hinge part. Open it. Simultaneously with this opening, the band-shaped portion 32a of the side connecting piece 32 is pulled while being reversed, so that the breaking region 23a of the lid side plate 23 at the tip is broken at the joint, and the band-shaped portion 32a is as shown in the figure. It will be in the state which remained on the upper side of the trunk | drum side board 11. FIG. At this time, since the band-shaped portion 32a is provided with a horizontal fold line, it is easy to bend when it is reversed.

  The flip-top type carton A opened in this way has a part of the front connecting piece 31 after breakage protruding as a folded piece 31a on the upper side of the trunk front plate 12, and on the back side of the lid front plate 21 Since there is a level difference due to the lack of the folded piece 31a, when the cover lid is tilted forward, the folded piece 31a is hooked on the front connecting piece 31 that has been divided by the first breaking line α and the cover lid is pulled. Locked. Further, when the cover lid is pulled up, the catch can be released to open the cover lid.

  And when it is resealed after opening, since the fracture | rupture area | region 23a of the cover part side board 23 has already been fractured | ruptured, as shown in FIG. 4, it will be in the state protruded sideways. Therefore, it can be determined at a glance whether or not the flip-top type carton A has been opened once, depending on whether or not the fracture region 23a protrudes. Moreover, since the fracture | rupture area | region 23a fractured | ruptured is connected with the strip | belt-shaped part 32a connected with the upper side of the trunk | drum side board 11, it does not become garbage and does not become obstructive of opening and closing. In addition, since it will be in the chipped state even if the fracture | rupture area | region 23a is removed with the strip | belt-shaped part 32a, it can be judged at a glance whether it was opened also in this case.

  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.

  For example, in the above-described embodiment, a band-like portion is provided on one side connecting piece, and a fracture region is provided on a lid side plate adjacent thereto, but this is not a limitation. That is, such a band-shaped portion and a break region can be provided in at least one of the left and right side connecting pieces and the front connecting piece, and the break region corresponds to the band-like portion and the right and left lids. It is divided into a part side plate and a lid front plate.

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 C Connection part a-r Folding line x, y Opening α First breaking line β Second breaking line γ Folding line 11 Trunk side plate 12 Trunk front plate 13 Trunk side plate 14 Trunk rear plate 15 Glue Substrate flap 16 Bending piece 17 Body bottom plate 18 Bending piece 19 Body inner bottom plate 20 Lid connecting plate 21 Lid front plate 22 Lid top plate 23 Lid side plate 23a Breaking region 24 Lid side plate 25, 26 Piece 31 Front connecting piece 32 Side connecting piece 32a Band-shaped portion 33 Side connecting piece

Claims (1)

It is provided at the upper part of the body part of the rectangular tube that is formed by connecting the body part front plate, the left and right body part side plates, and the body part rear plate, and pivots around the boundary between the body part rear plate and the hinge part. A flip top type carton having a cover part covering the body front plate and a part of the left and right body side plates, and a bottom part that closes the lower part of the body part,
The cover lid is bonded to a lid connecting plate that is connected to the upper side of the trunk rear plate, so that a lid top plate that is connected to the trunk rear plate via a folding line that becomes a hinge portion, and a lid portion A lid front plate connected to the trunk front plate via a front connecting piece folded back with the trunk front plate, and a lid top plate and a lid front plate. Each is provided with left and right lid side plates connected to the trunk side plate via side connecting pieces folded back with the trunk side plate.
The front connecting piece is formed with a first breaking line near the trunk front plate, and a second breaking line is formed at the connecting portion between the side connecting piece and the trunk 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 breaking line, and the left and right side connecting pieces are bonded to the left and right lid side plates, respectively.
At least one of the left and right side connecting pieces and the front connecting piece is provided with a free band-like portion having a predetermined width that is connected to the trunk portion via a bend line, and the bend line is formed in the band-like portion. A flip top carton characterized in that a break region continuously provided through the door is partitioned into at least one of left and right lid side plates and a lid front plate.

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