JP4324489B2 - Packaging box - Google Patents

Description

  The present invention relates to a packaging box that can be resealed without being taped.

  Prior art document information relating to the packaging box of the present invention includes the following.

JP 2002-193240 A

  In the packaging box described in Patent Document 1, a rectangular inner flap and an outer flap that face each other are connected to the upper end edge of the side wall that surrounds the four sides. The inner flap is provided with a pair of engagement holes so as to form a square shape. Further, the outer flap is provided with a ruled line positioned in parallel to the outside of the engagement hole in the assembled state, and an insertion portion is provided at an outer edge with the ruled line as a boundary. Further, a cut-and-raised lock piece extending inward is formed on the outer flap at a substantially central position of the ruled line so that the position along the ruled line is separated and the opposed position becomes a continuous part.

  The packaging box formed in this way first bends the opposed inner flaps against the side walls. Next, while bending the outer flap, the corner portion is bent along the ruled lines on both sides, and the insertion portion at the tip is inserted into the engagement hole of the inner flap. Thereafter, the cut and raised lock piece is pushed into the inner flap through the engagement hole, thereby locking the cut and raised lock piece to the inner surface of the inner flap.

  Further, when opening the packaging box, after unlocking the cut-and-raised lock piece and the engagement hole of the inner flap, the outer flap was opened by pulling out the insertion portion from the engagement hole. Then open the inner flap.

  However, in the packaging box, the resealing operation (procedure) is very troublesome, difficult for the user to understand, and particularly the opening operation is troublesome. Specifically, in this packaging box, since the insertion portion of the outer flap is inserted into the inside from the engagement hole of the inner flap, when releasing the lock between the cut and raised locking piece and the engagement hole, the ruled line The outer locking area cannot be folded along Therefore, it is necessary to slide inward, which is a direction in which the tips of the pair of outer flaps approach each other. However, since the edge of the inner flap is located at the inner edge of the outer flap, the operation is very difficult. In addition, if this work is performed carefully, not only will the waist of the cut-and-raised lock piece become weak, but in the worst case there is a risk of breakage.

  Therefore, an object of the present invention is to provide a packaging box that can be resealed and opened multiple times and is easy to perform.

In order to solve the above-mentioned problem, the packaging box of the present invention has the first flap connected to the opposing side wall at least one of the upper and lower end edges of the side wall surrounding the four sides, and the second flap to the other opposing side wall. The at least one side edge of the first flap is an inclined side that is less than 90 degrees with respect to the boundary line with the continuous side wall, while the second flap is in an assembled state. A pair of ruled lines that substantially coincide with the inclined sides and extend in substantially the same direction and a substantially concave cutting line extending between the ends of each ruled line are provided, and the first flaps adjacent in an assembled state by these ruled lines and cutting lines. And a tongue-shaped locking piece that is located at an intermediate portion on the ruled line and extends outwardly toward the upper surface or the lower surface of the first flap over the inclined side.

  In the packaging box of the present invention, when the opening is resealed by the first and second flaps, after folding one first flap, the second flap adjacent to the side where the inclined side is not provided is folded. Next, after folding the other adjacent first flap, the remaining second flap is folded, and the overlapping portion defined by the ruled line is inserted downward from the inclined side of the first flap that is bent first. Thereby, it can be easily resealed without a gap in the form of a commonly used windmill system. Further, when opening the re-sealed packaging box, it can be opened easily without weakening the waist of the tongue-like locking piece by sequentially opening from the second flap in the reverse direction.

  Alternatively, after the pair of second flaps is folded, the pair of first flaps is folded so as to overlap therewith. Next, by pressing the inclined side of the first flap toward the second flap, a part of the inclined side of the first flap is positioned below the tongue-like locking piece of the second flap. Thereby, it can be easily resealed without a gap. When opening this re-sealed packaging box, by opening the pair of second flaps located on the upper side and releasing the lock between the tongue-like locking piece and the inclined side, by opening the pair of first flaps, It can be easily opened without weakening the tongue-shaped locking piece.

  Alternatively, after the pair of first flaps is folded, the pair of second flaps are folded so as to overlap with each other. Next, the tongue-shaped locking piece is positioned on the lower side of the inclined side of the first flap by pressing the tongue-shaped locking piece of the second flap toward the first flap. Thereby, it can be easily resealed without a gap. When opening this re-sealed packaging box, by opening the pair of first flaps located on the upper side and releasing the lock between the tongue-like locking piece and the inclined side, by opening the pair of second flaps, It can be easily opened without weakening the tongue-shaped locking piece.

  Thus, according to the packaging box of the present invention, it can be easily resealed without gaps in various forms according to the user's wishes, and the opening operation is very simple. Therefore, it is possible to suppress weakening of the waist such as a tongue-shaped locking piece, and re-sealing and opening can be performed a plurality of times.

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

  1 to 6 show a packaging box according to an embodiment of the present invention. As shown in FIGS. 1 (A) and 1 (B), this packaging box has flaps 13, 14, 16, and 17 that constitute a canopy and a bottom lid at upper and lower edges of side walls 10A to 10D that surround four sides, respectively. The first and second flaps 13 and 14 that are provided in a row and that constitute the top wall can be easily re-sealed and opened.

  Specifically, the packaging box is formed by punching a well-known corrugated cardboard paper having a corrugated shin between the front and back sheets as a continuous blank by a well-known paper punching device (not shown). Has been.

  As shown in FIG. 2, the packaging box blank has four side walls 10A, 10B, 10C, and 10D that are continuous in the lateral direction, and is attached to the side wall 10A at one end and the side edge of the other side wall 10D. An adhesive margin 11 for wearing is provided. Folding curves 12 are formed at the boundary portions of the side walls 10A to 10D and the adhesive margin 11 so as to form a ruled line so as to compress the thickness.

  A pair of first flaps 13 are connected to the short side walls 10B and 10D facing each other at the upper end edges of the side walls 10A to 10D, and a pair of second flaps are formed on the other opposing long side walls 10A and 10C. 14 is continuously provided. These flaps 13 and 14 constitute a canopy that closes the upper end opening surrounded by the side walls 10A to 10D, and a folding line 15 similar to the above is provided at the boundary portion of the continuous side walls 10A to 10D. ing.

  In addition, a pair of inner flaps 16 are connected to the opposed short side walls 10B and 10D at the lower end edges of the side walls 10A to 10D, and a pair of outer flaps 17 are arranged on the other opposed long side walls 10A and 10C. Are connected. These flaps 16 and 17 constitute a bottom lid that closes the lower end opening surrounded by the side walls 10A to 10D, and a folding line 18 is provided at a boundary portion of the continuous side walls 10A to 10D.

  The first flaps 13 and 13 and the inner flaps 16 and 16 are formed with dimensions such that the tips of each other do not abut. Moreover, the 2nd flaps 14 and 14 and the outer flaps 17 and 17 are formed in the dimension by which the front-end | tips mutually collide. Further, the projecting dimensions of the first flap 13 and the second flap 14 and the projecting dimensions of the inner flap 16 and the outer flap 17 are the same, and the tips thereof are configured to linearly match. In addition, the folding lines 15 and 18 provided between these and the side walls 10A to 10D are configured to coincide linearly. As a result, it is possible to manufacture using a general-purpose processing machine such as a flexogluer instead of an expensive die cutter method, thereby reducing the production cost and improving the production efficiency.

  In this embodiment, the 1st flap 13 which comprises a canopy is made into the inclined side 19 which inclines toward the other (right) side from the boundary part corner with the side wall 10B, 10D which continues the one (left) side edge. . The second flap 14 has a ruled line 20 extending substantially in the same direction as the inclined side 19 on the side that coincides with the inclined side 19 in the assembled state, and a tongue-like engagement located at an intermediate portion on the ruled line 20. A piece 24 is provided. Specifically, the ruled line 20 is a pair of leads composed of a fold line 21 formed with a ruled line so as to compress the wall thickness, and a cutting line 22 formed at the center of the fold line 21 as described above. The tongue-shaped locking piece 24 is formed in the middle part on the ruled line 20 by forming the tongue-shaped locking piece 24 between them. The outer area defined by the ruled line 20 becomes an overlapping portion 23 that overlaps the adjacent first flap 13 in the assembled state. The tongue-shaped locking piece 24 extends outwardly toward the upper surface or the lower surface of the first flap 13 beyond the inclined side 19 of the adjacent first flap 13 in the assembled state. It is formed by providing a substantially concave cutting line 25 so as to extend into the overlapping portion 23 from the center between the ends.

  Here, the inclined side 19 is formed such that an angle α formed with the folding line 15 which is a boundary line between the side walls 10B and 10D where the first flap 13 is continuous is less than 90 degrees. More specifically, although depending on the ratio of the width of the long side walls 10A and 10C and the width of the short side walls 10B and 10D, the angle α between the inclined side 19 and the folding line 15 is 30 degrees. It is preferable to form so as to be 60 degrees or less. Here, when the angle α formed is 30 degrees or less, the occupied area of the first flap 13 is reduced, and the rigidity in the sealed state is lowered. In addition, when the formed angle α is 60 degrees or more, the protruding amount of the tongue-like locking piece 24 formed on the second flap 14 is reduced, and the locking force with the inclined side 19 of the first flap 13 is reduced. This is because the area of the overlapping portion 23 to be superimposed on the upper surface or the lower surface of the first flap 13 is reduced, and the sealed state cannot be reliably maintained. In the present embodiment, the angle α formed is 45 degrees, which is least likely to cause these problems.

  The packaging box configured in this manner bends the inner flap 16 constituting the bottom lid with respect to the side walls 10B and 10D. Thereafter, the outer flap 17 is bent with respect to the side walls 10A and 10C, and the tip portion where the outer flap 17 is abutted is adhered with an adhesive tape.

  And after accommodating a predetermined | prescribed goods from the open | released upper end opening, the 1st flap 13 which comprises a canopy is bend | folded with respect to the side walls 10B and 10D. Thereafter, the second flap 14 is bent with respect to the side walls 10A, 10C, and the tip portion where the second flap 14 abuts is adhered with an adhesive tape, and used as a transport box.

  The user who has received the packaging box containing this product peels off the adhesive tape to which the second flap 14 is attached, and then takes out the product inside. When the upper end opening is resealed with the product remaining inside, as shown in FIG. 3 (A), first, the first flap 13 on the one side (the right side in the figure) is bent and then inclined. The second flap 14 adjacent to the side where the side 19 is not provided is bent.

  Next, as shown in FIG. 3B, the other adjacent first flap 13 is bent. At this time, the inclined side 19 of the bent first flap 13 is pressed toward the second flap 14, and the tongue-like locking piece 24 of the second flap 14 passes over the inclined side 19 and is placed on the upper surface of the first flap 13. To be located. Thereafter, the remaining second flap 14 is folded, and the overlapping portion 23 defined by the ruled line 20 is inserted downward from the inclined side 19 of the first flap 13, and the tongue-shaped locking piece 24 is connected to the first flap 13. It is located above.

  Thereby, in the packaging box in which the reseal structure is not formed, it is generally performed and can be easily resealed with no gap in the familiar windmill type folding form.

  When the re-sealed packaging box is opened, it can be easily opened by sequentially opening the second flap 14 in the reverse direction without weakening the waist of the tongue-like locking piece 24.

  In addition, the packaging box of this embodiment is not restricted to the said reseal structure, A user can reseal easily with various methods and structures as desired. Specifically, as shown in FIG. 4A, the pair of first flaps 13 is resealed in a form of being superimposed on the upper side of the second flap 14, or as shown in FIG. The second flap 14 can be resealed in a form that overlaps the upper side of the first flap 13. And any resealing structure can suppress weakness of the tongue-like locking piece 24 and the like, and can be resealed and opened several times.

  In the case of the re-sealing form shown in FIG. 4 (A), first, as shown in FIG. 5 (A), after bending the pair of second flaps 14, as shown in FIG. The pair of first flaps 13 are folded so as to overlap with each other. Next, by pressing the inclined side 19 of the first flap 13 toward the second flap 14, a part of the inclined side 19 of the first flap 13 is placed below the tongue-like locking piece 24 of the second flap 14. Position. Thereby, it can be easily resealed without a gap.

  When opening the re-sealed packaging box, the pair of second flaps 14 located on the upper side are opened to release the lock between the tongue-shaped locking piece 24 and the inclined side 19, and then the pair of first flaps 13 are By opening, the tongue-like locking piece 24 can be easily opened without weakening the waist.

  In the case of the re-sealing form shown in FIG. 4 (B), first, as shown in FIG. 6 (A), after the pair of first flaps 13 are bent, as shown in FIG. The pair of second flaps 14 are bent so as to overlap with each other. Next, the tongue-shaped locking piece 24 is positioned below the inclined side 19 of the first flap 13 by pressing the tongue-shaped locking piece 24 of the second flap 14 toward the first flap 13. Thereby, it can be easily resealed without a gap.

  When opening the re-sealed packaging box, after opening the pair of first flaps 13 located on the upper side to release the lock between the tongue-like locking piece 24 and the inclined side 19, the pair of second flaps 14 is opened. By opening, the tongue-like locking piece 24 can be easily opened without weakening the waist.

  Thus, the packaging box of the present invention can be resealed and unsealed in various forms as desired by the user a plurality of times without weakening the corrugated cardboard as the forming material. In addition, it can be manufactured by a general-purpose processing machine such as a flexo gluer using a partial mold for forming the inclined side 19, the ruled line 20, and the tongue-like locking piece 24 instead of an expensive die cutter method.

  In addition, the packaging box of this invention is not limited to the structure of the said embodiment, A various change is possible.

  For example, in the above-described embodiment, the inclined side 19 is provided only on one side edge of the first flap 13, and the ruled line 20 and the tongue-like locking piece 24 are provided only on the corresponding side of the second flap 14. As shown in FIG. 4, it may be provided on both sides.

  Moreover, in the said embodiment, although the ruled line 20 formed in the 2nd flap 14 was comprised by the lead ruler which consists of the folding line 21 and the cutting line 22, you may comprise only the folding line 21. FIG.

  Further, in the above-described embodiment, the flap connected to the short side walls 10B and 10D is the first flap 13 having the inclined side 19, and the flap connected to the long side walls 10A and 10C is connected to the ruled line and the tongue. Although the second flap 14 having the stop piece 24 is used, the flap connected to the long side walls 10A and 10C is used as the first flap 13 having the inclined side 19, and the flap connected to the short side walls 10B and 10D is used. The second flap 14 having the ruled line 20 and the tongue-like locking piece 24 may be used.

  Furthermore, in the said embodiment, although the flap which comprises a canopy was made into the structure which can be resealed and opened, the flap which comprises a bottom cover is good also as a structure which can be resealed and opened. Moreover, it is good also as a structure which can reseal and open both the flap which comprises a canopy and a bottom cover. Furthermore, when the structure that can be resealed and opened is applied to either the canopy or the bottom lid, the other may be closed by a separate lid.

The packaging box of this invention is shown, (A) is a perspective view which shows an unsealed state, (B) is a perspective view which shows a single sealed state. It is a top view which shows the blank of a packaging box. (A), (B) is a perspective view which shows the sealing method for setting it into the sealing state of FIG. 1 (B). (A), (B) is a perspective view which shows another sealing state. (A), (B) is a perspective view which shows the sealing method for setting it into the sealing state of FIG. 4 (A). (A), (B) is a perspective view which shows the sealing method for setting it into the sealing state of FIG. 4 (B). It is a top view which shows the blank of the modification of a packaging box.

Explanation of symbols

10A to 10D ... sidewall 13 ... first flap 14 ... second flap 19 ... inclined side 20 ... ruled line 23 ... overlapping portion 24 ... tongue-like locking piece
25 ... cutting line

Claims (1)

In the packaging box in which at least one of the upper and lower edges of the side wall surrounding the four sides is connected to the opposing side wall and the second flap is connected to the other opposing side wall,
While at least one side edge of the first flap is an inclined side with an angle formed with respect to a boundary line with a continuous side wall being less than 90 degrees,
In the assembled state, the second flap is provided with a pair of ruled lines that substantially coincide with the inclined sides in the assembled state and extend in substantially the same direction, and a substantially concave cutting line that extends between the ends of each ruled line. An overlapping portion that overlaps adjacent first flaps in an assembled state, and a tongue-like locking piece that is located at an intermediate portion on the ruled line and extends outwardly toward the upper surface or the lower surface of the first flap across the inclined side A packaging box characterized in that

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