JP2007326611A - Packaging container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging container whose top face board can be opened and closed at a touch. <P>SOLUTION: The packaging container 1 includes a back face board 2, right/left side boards 3, 6, and a front face board 4, which are connected to each other, the top face board 7 connected to the top edge of the back face board 2, and a bottom face board connected to the lower edge of the front face board 4. A locked flap 9 is connected to the top edge of the front face board 4, and locking flaps 14, which can be engaged separably with the locked flap 9, are pasted on the back face of a locking board 12 connected to the edge of top face board 7 that is closer to the front face board 4. A fold e is formed between the top face board 7 and the back face board 2 in an arcuate shape that curves downward. In this structure, holding the back face board 2 and the front face board 4 between fingers weakens an engaging force acting between the locked flaps 9 and the locking flaps 14 as the rear end of the top face board 7 elastically deforms to project outward along the arcuate fold e. The rear end then receives a force canceling the deformation, which causes the top face board 7 to pop up to open. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a packaging container such as confectionery.

  Conventionally, as a packaging container for storing confectionery, etc., it has a front plate, left and right side plates and a back plate, a top plate and a bottom plate, and after punching out a coated ball according to a development view, it is folded along a crease. A rectangular parallelepiped that is assembled by sticking predetermined portions is widely adopted. And the confectionery etc. which were accommodated in the inside are taken out by opening and closing the upper surface board which has an insertion flap.

  By the way, in the packaging container mentioned above, the unintentional opening | release of an upper surface board is controlled by inserting the insertion flap attached to the upper surface board along the inner surface of a front board. Therefore, when opening and closing the upper surface plate, it is necessary to extract the insertion flap inserted into the inner surface side of the front plate or insert the insertion flap into the inner surface side of the front plate. In addition, the packaging container must be supported with one hand and the insertion flap and the top plate must be operated with the other hand, which has the disadvantage that the work becomes complicated.

  The present invention has been made in view of such problems, and provides a packaging container that can be easily opened and closed with a single touch.

  In the present invention, the back plate, the left and right side plates, and the front plate are connected via a fold line, while the top plate is connected to the upper edge of the back plate via a fold line. Adhesive margin is connected to the lower edge of either the face plate or the front plate via a fold, and a bottom plate is connected to the lower edge opposite to the lower edge where the adhesive margin is connected via a fold. In the packaging container, a locked piece is connected to the upper edge of the front plate via a fold, while the locking plate is connected to the edge of the top plate facing the fold with the back plate via the fold. In addition, covering pieces are connected to the left and right edges of the top plate via folds, and locking pieces that can be engaged with and disengaged from the locked pieces are connected to each covering piece via folds. Is attached to the back surface of the locking plate, and the crease between the top plate and the back plate is It is characterized in being formed in an arc shape to be.

  According to the present invention, the fold line between the back plate and the top plate is formed in an arc shape curved downward, so that the upper end portion of the back plate along the arc-shaped fold line slightly protrudes outward. The rear end portion of the upper surface plate along the arc-shaped fold also slightly protrudes outward, and the rear end portion of the upper surface plate is elastically deformed into a gently curved inclined surface. For this reason, the upper surface plate receives a force to recover the elastic deformation of the rear end portion. Further, the inner end edge of the locking piece stuck to the locking plate is locked to the leading edge of the locked piece, and the upper surface plate connected to the locking plate is released by unintentional jumping up. It is regulated.

  In such a state, if the front plate and the back plate are sandwiched by two fingers of one hand, the front plate is bent inward, so that the leading edge of the locked piece and the inner edge of the locking piece The back plate is curved inward and the arc-shaped crease is pushed inward, and the top plate recovers the shape of its rear end in a flat shape and jumps up. To help. At this time, when the force of the upper surface plate to jump up exceeds the locking force between the locked piece and the locking piece, the locked state between the locked piece and the locking piece is released. The face plate automatically springs up and opens the top surface.

  On the other hand, when closing the upper surface opening, if the upper surface plate is pushed down, the upper surface plate rotates around the arc-shaped crease, and the locking plate pushes over the locked piece together with the locking piece to get over the The locking piece is locked to the locking piece, thereby preventing the upper surface plate from being released due to jumping up.

  As a result, the top plate can be automatically flipped up and opened by a simple one-touch operation of sandwiching the back plate and the front plate with two fingers of one hand, and the stored confectionery can be taken out through the top opening. be able to. Further, the top plate can be held in the closed position by a simple operation of pushing down the top plate.

  In the present invention, when the linear crease is formed on the upper surface plate and the back plate over a certain length so as to form a substantially vertical bisector of the arc-shaped fold, when the back plate is pressed, The upper end portion of the back plate along the arc-shaped crease protruding inward can be pushed inward with a small force.

  According to the present invention, the top plate can be automatically flipped up and opened by a simple one-touch operation in which the back plate and the front plate are sandwiched between two fingers of one hand. Further, the top plate can be held at the closed position of the opening by a simple operation of pushing down the top plate.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 3 show an embodiment of the packaging container 1 of the present invention.

  The packaging container 1 has a right side plate 3, a front plate 4, and a glue margin 5 sequentially arranged on the left end edge of the back plate 2 via folds a, b, c, and a left side plate 6 at the right end edge. On the other hand, the upper surface plate 7 is connected to the upper end edge of the back plate 2 via the fold line e, and the adhesive margin 8 is connected to the lower end edge thereof via the fold line f. A locked piece 9 is connected to the upper end edge of the front plate 4 via a fold line g, and a bottom plate 10 is connected to the lower end edge of the front plate 4 via a fold line h. A flap 11 is connected to each lower end edge of the face plate 6 via a fold line i, while an engaging plate 12 is connected to an upper end edge of the upper face plate 7 via a fold line j. The covering pieces 13 are connected to the end edges through the folds k, respectively, and the locking pieces 14 are connected to the upper end edges of the covering pieces 13. It is constituted respectively are continuously provided via a fold m.

  Here, the fold line e that connects the upper surface plate 7 to the rear surface plate 2 is formed in an arc shape that curves downward except for both ends.

  Further, the locking piece 14 is cut out at a portion defined by a diagonal line extending obliquely outward from the intersection of the fold line j and the fold line k and a vertical line extending downward from the upper end edge. The distance from the left and right edges to the inner edge of each locking piece 14 (vertical cutting edge extending downward from the upper edge) is the height of the locked piece 9, that is, the upper end of the locked piece 9. It is set equal to or slightly larger than the distance from the edge to the crease g with the front plate 4.

  Next, the assembly procedure of the packaging container 1 configured as described above will be described.

  First, after punching out the court ball in accordance with the development view of FIG. 3, the back surface is turned over so that the upper surface faces the upper surface, the front plate 4 is valley-folded along the crease b with respect to the right side plate 3, After the adhesive is applied to the surface, the left side plate 6 is valley-folded along the fold line d with respect to the back plate 2, and the back side edge of the left side plate 6 is attached to the glue margin 5.

  Next, after the trough folds the latched piece 9 with respect to the front plate 4 along the fold g, the left side plate 6 rises along the fold d with respect to the back plate 2 while covering each latching piece 14. Each of the covering pieces 13 is folded along the crease k along the crease m with respect to the piece 13, and each of the covering pieces 13 is folded along the fold k with respect to the upper surface plate 7. Fold it along e. At this time, the top plate 7 is folded so that the respective covering pieces 13 are located on the outer surface sides of the right side plate 3 and the left side plate 6, respectively, and each locking piece 14 has its inner edge at the leading edge of the locked piece 9. It is placed on the surface of the front plate 4 in a substantially abutting state. Thereafter, an adhesive is applied to the surface of the locking piece 14, the locking plate 12 is valley-folded along the fold line j with respect to the upper surface plate 7, and the back surface of the locking plate 12 is pasted on each locking piece 14. To wear.

  Then, after supplying the set number of confectionery etc. through the opening on the bottom plate 10 side, each flap 11 is valley-folded along the fold line i with respect to the right side plate 3 and the left side plate 6, respectively, and the glue margin 8 is changed to the back plate 2. Is folded along the fold line f. Next, after applying an adhesive to the adhesive margin 8, the bottom plate 10 is valley-folded along the crease h with respect to the front plate 4, and the back surface of the bottom plate 10 is adhered to the adhesive margin 8. Thereby, the packaging container 1 in which the confectionery etc. were accommodated is formed. After that, although not shown in detail, it is packaged in a packaging container 1 film and shipped.

  The packaging container 1 assembled in this way has an upper end of the back plate 2 along the arc-shaped fold line e because the fold line e between the back plate 2 and the top plate 7 is formed in an arc shape curved downward. The portion protrudes slightly outward from the vertical plane including the crease f with the adhesive margin 8, and the rear end portion of the upper surface plate 7 along the arc-shaped fold line e also slightly protrudes outward. The part is elastically deformed into a gently curved surface toward the crease e (see FIG. 4). For this reason, the upper surface plate 7 receives a force for recovering the elastic deformation of the rear end portion, that is, a force for recovering from the curved surface to the flat surface.

  Further, the inner end edge of the locking piece 14 attached to the back surface of the locking plate 12 is locked to the leading edge of the locked piece 9, and the upper surface plate 7 connected to the locking plate 12. Unintentional jumping is regulated. In other words, the above-described force that causes the rear end portion of the curved surface of the upper surface plate 7 to recover to a flat shape, that is, the force that the upper surface plate 7 tries to jump up is applied to the engagement plate 12. This is prevented by the inner end edge of the stop piece 14 and the front end edge of the locked piece 9 being locked.

  On the other hand, a consumer who purchases confectionery or the like at the store, after peeling the film, places the thumb and index finger of one hand on the front plate 4 and the back plate 2, respectively, and sandwiches them in the direction in which the distance between them decreases. Thereby, when the front plate 4 is pressed inward and curved, the locked piece 9 connected to the front plate 4 also slightly curves inward, and the leading edge and the locking piece The locking length with the inner end edge of 14 is shortened, and the locking force is weakened. On the other hand, the back plate 2 is also pressed and curved inward, and the arc-shaped fold e protruding slightly outward is pushed inward, whereby the rear end portion of the top plate 7 is restored to a flat shape. Assisting the top plate 7 to jump up. At this time, the force of the upper surface plate 7 to jump up is greater than the locking force between the leading edge of the locked piece 9 and the inner edge of the locking piece 14, The locked state with the piece 14 is released, and the upper surface plate 7 automatically jumps up (see FIG. 5).

  In this way, the top plate 7 can be automatically lifted up by the one-touch operation of sandwiching the back plate 2 and the front plate 4 with two fingers of one hand to open the top surface. It can be taken out through the open top opening.

  On the other hand, when the upper surface opening is closed after the confectionery is taken out, the upper surface plate 7 may be pushed down and rotated around the crease e. As a result, the locking plate 12 pushes down the locked piece 9 together with the locking piece 14 attached to the locking plate 12 and gets over the locked piece 9. When the locking plate 12 gets over the locked piece 9 together with the locking piece 14, the inner end edge of the locking piece 14 is locked to the tip edge of the locked piece 9, and the upper surface plate 7 is prevented from jumping up. (See FIG. 6).

  In this embodiment, as shown in FIGS. 7 and 8, a linear fold n is formed across the top plate 7 and the back plate 2 at substantially the middle part of the arc-shaped fold e, substantially perpendicular to the fold e. It is preferable to do. By forming the fold line n in this way, when the rear plate 2 is sandwiched and pressed together with the front plate 4, the arc-shaped fold line e protruding outward can be pushed inward without resistance, and the upper portion can be moved with a small force. The rear end portion of the face plate 7 can be restored to a flat shape.

It is a perspective view from the back side which shows one Embodiment of the packaging container of this invention. It is a perspective view from the front side of the packaging container of FIG. It is an expanded view of the packaging container of FIG. FIG. 2 is a partially enlarged longitudinal sectional view schematically showing the packaging container of FIG. 1 cut along a vertical plane parallel to a side plate. It is a perspective view explaining the open state of the upper surface board of the packaging container of FIG. It is a perspective view explaining the closed state of the upper surface board of the packaging container of FIG. It is a perspective view which shows the modification of the packaging container of FIG. It is an expanded view of the packaging container of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Packaging container 2 Back plate 3,6 Side plate 4 Front plate 5,8 Adhesive margin 7 Upper surface plate 9 Locked piece 10 Bottom plate 12 Locking plate 14 Locking piece a, b, c, d, f, g, h, i, j, k, m, n crease e arc-like crease

Claims (2)

The back plate, the left and right side plates and the front plate are connected via folds, while the top plate is connected to the upper edge of the back plate via the folds, and the back plate, left and right side plates or front plate In a packaging container in which a margin is continuously provided via a fold at one of the lower edges of the bottom plate, and a bottom plate is provided continuously via a fold at a lower edge opposite to the lower edge where the adhesive is provided continuously. A locked piece is connected to the upper end edge of the front plate via a fold line, and a locking plate is connected to the edge of the top plate facing the fold line with the back plate via a fold line. The cover pieces are connected to the left and right edges of the top plate via folds, and the locking pieces that can be engaged with and disengaged from the locked pieces are connected to the cover pieces via the folds and locked. An arc that is attached to the back surface of the plate and further has a crease between the top plate and the back plate curved downward. Packaging container, characterized in that formed. The packaging container according to claim 1, wherein linear folds are formed on the top plate and the back plate over a predetermined length so as to form a substantially perpendicular bisector of the arc-shaped fold.

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