JP4647962B2 - Packaging box - Google Patents

Description

  The present invention relates to a packaging box for storing commodities such as drugs and foods.

Conventionally, as disclosed in Patent Document 1, in a paper packaging box that accommodates products such as drugs and foods, it is formed so that it can be assembled with one touch after gluing, and an inner bottom piece that covers the entire bottom surface is provided inside the bottom surface. There was a box. This packaging box is composed of a box-forming piece integrally punched from one blank sheet, and the box-forming piece has a lid for closing the open end of the box formed by side surfaces connected to each other. A piece is provided. And an inner bottom piece is provided continuously on one side.
JP 2001-146225 A

  In the case of the technique disclosed in the above-mentioned conventional Patent Document 1, it has an effect of preventing tampering from the bottom, but by carefully opening the bottom of the box, tampering can be performed without leaving a trace. there were. Further, the bottom portion is not structured to be locked with one touch, the bottom lid piece is unstable, and the assemblability is not sufficiently good.

  The present invention has been made in view of the above-mentioned problems of the prior art, and provides a packaging box having a simple structure, good assemblability, good production efficiency, and an effect of preventing tampering from the bottom. With the goal.

The present invention is a packaging box comprising a box-forming piece integrally punched from a single blank sheet. The box-forming piece has side surfaces connected to each other and the box-forming piece in an assembled state. A bottom portion that closes one open end of the box formed by the connected side surfaces is provided, and the bottom portion is continuous with the one side surface and covers a part of the bottom portion; A pair of lower flaps extending from the side surfaces on both sides of the bottom lid piece, a glued piece provided on the lower flap and glued to the bottom lid piece, and a glued portion provided on the glued piece A cut line formed in the periphery, and an inner bottom piece that is continuous with a side face facing the side face provided with the bottom cover piece and closes substantially the entire bottom portion along the inside of the box of the bottom cover piece. the provided, the cutting lines provided in a central portion of said bottom piece, before provided at the distal end portion center of the bottom cover piece A projecting piece for locking plugged into cutting line, the cutting line guide notch which is formed continuously from one end portion is provided, this guide notch is necessary portion of the box body forming member When assembling from a state in which two of the creased lines between the connected side surfaces are normally folded and folded, the protruding piece slides on the outer surface of the inner bottom piece. The crease line formed between the side surfaces of the box-forming piece when the bottom cover piece and the inner bottom piece are assembled to be flush with each other. Is an end portion of the cutting line on the opposite side, and extends from a position coinciding with the base end portion of the inserted projecting piece, and is formed so as to substantially follow a locus along which the projecting piece slides It is .

  The guide notch is formed by a straight line or a curve. Further, the guide cut portion may be formed of a through hole formed by the cut line.

The packaging box of the present invention has a simple structure, and the bottom portion can be locked together by the inner bottom piece and the bottom lid piece in an assembled state, and can be stably assembled by either automatic assembly by machine or manual assembly. Can do. In addition, it is possible to prevent the contents from being tampered with the cut lines and inner bottom pieces for preventing the tampering of the glued pieces, ensuring the safety of the goods, and ensuring safe transportation and display. it can.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 show a first embodiment of the present invention. A packaging box 10 according to this embodiment is formed by assembling a box-forming piece 12 formed by punching a blank sheet such as cardboard. Has been. The box-forming piece 12 is formed by connecting the side surfaces 14, 16, 18, and 20 in parallel with each other. Further, a glued piece 22 that is glued to the inside of the side surface 20 in the assembled state of the packaging box 10 is provided at the side edge of the side surface 14. The glued piece 22 and the side surfaces 14, 16, 18, and 20 are separated by crease lines 24, 26, 28, and 30, respectively.

  An upper lid piece 32 is provided on one end portion of the side surface 14 that is parallel to the connecting direction of the adjacent side surfaces 16 and separated by a crease line 34. The upper lid piece 32 is further provided with an insertion piece 36 which is inserted into the side surface 18 in an assembled state, separated by a crease line 38.

  On the other hand, an inner bottom piece 40 is provided at the end of the side surface 14 opposite to the crease line 34 and separated by a crease line 42. The inner bottom piece 40 is approximately the same size as the upper lid piece 32 and is formed to have a size that covers substantially the entire bottom portion when the packaging box 10 is assembled. A crease line 43, which is a straight line that reaches a position that is about a quarter of the tip 40 a of the inner bottom piece 40 from the intersection of the crease line 26 and the crease line 42 of the inner bottom piece 40, is provided.

  A cutting line 44 is provided at a position of the inner bottom piece 40 slightly closer to the crease line 43 than the center. The cutting line 44 is formed in a substantially U-shape opened to the front end portion 40a side of the inner bottom piece 40, and a portion of the pair of U-shaped parallel straight portions apart from the crease line 43 is the front end portion 40a. The guide cut-out portion 46 is a straight line extending toward the corner portion 40 b located on the opposite side of the crease line 43. The proximal end portion of the guide cut-out portion 46 is a straight contact portion 48 that is substantially perpendicular to the distal end portion 40 a of the inner bottom piece 40. Thus, the inside of the U-shape of the cutting line 44 becomes a flap 49 that can swing with respect to the inner bottom piece 40.

  A substantially rectangular upper flap 50 is provided at the end of the side surface 16 adjacent to the crease line 34 of the side surface 14, separated by a crease line 52. The upper flap 50 has a shape in which the vicinity of the corner portion on the side surface 18 side is cut off by an inclined line. A triangular lower flap 54 is provided at the end of the side surface 16 opposite to the crease line 52 and separated by a crease line 56. A deformed pentagonal glued piece 58 is provided via a crease line 60 on the inclined side edge of the lower flap 54 on the inner bottom piece 40 side. In the center of the glued piece 58, a circular tamper-proof cut line 62 that is partially connected is provided, and the inside of the cut line 62 serves as a glued portion 64. The cut line 62 may be cut in a half-cut state in the thickness direction of the box-forming piece 12, or may be cut in a half-cut state from both the front and back sides.

  A bottom cover piece 66 is provided at an end of the side surface 18 adjacent to the crease line 56 of the side surface 16, separated by a crease line 68. The length of the bottom cover piece 66 in the direction perpendicular to the crease line 68 is formed to be about half that of the inner bottom piece 40. The bottom cover piece 66 has a shape in which the vicinity of the corner portion on the side surface 20 adjacent to the bottom cover piece 66 is cut off with an inclined line. A semicircular projection piece 70 that protrudes to the side of the tip portion 66a is formed at the tip portion 66a of the bottom lid piece 66 at a position slightly closer to the lower flap 54 side than the middle of the tip portion 66a. Yes. The protruding piece 70 is formed so that the width parallel to the distal end portion 66 a of the bottom cover piece 66 is slightly smaller than the width of the cutting line 44 of the inner bottom piece 40 and can be inserted. A portion of the protruding piece 70 close to the adjacent side surface 20 is a straight contact portion 72 that is substantially perpendicular to the tip end portion 66 a of the bottom lid piece 66.

  A substantially rectangular upper flap 74 is provided on an end portion of the side surface 20 opposite to the crease line 68 on the side surface 18 by being separated by a crease line 76. The upper flap 74 has a shape in which the vicinity of the corner on the side surface 18 adjacent to the upper flap 74 is cut off by an inclined line. At the end of the side surface 20 opposite to the crease line 76, a triangular lower flap 78 is provided by being separated by a crease line 80. A deformed pentagonal glued piece 82 is provided via a crease line 84 on the inclined side edge of the lower flap 78 on the bottom lid piece 66 side. In the center of the glued piece 82, a partially broken circular cutting line 86 for preventing tampering is provided, and the inside of the cutting line 86 is a glued part 88. The cut line 86 may be cut in a half-cut state in the thickness direction of the box-forming piece 12, or may be cut in a half-cut state from both the front and back sides.

  Next, the assembly method of the packaging box 10 of this embodiment is demonstrated. Here, FIG. 1 is a view of the front side of the box-forming piece 12 of the packaging box 10. In FIG. 1, the folding method in which the front side is convex and the folding side in which the front side is concave are shown. Is called reverse folding.

  First, glues 90 and 92 are respectively applied to the back surfaces of the glued part 64 of the glued piece 58 and the glued part 88 of the glued piece 82, and the lower flaps 54 and 78 are normally folded at the crease lines 56 and 80. However, the glued pieces 58 and 82 are reversely folded along the crease lines 60 and 84. The inner bottom piece 40 is normally folded along the crease line 43, and the bottom lid piece 66 is folded forward along the crease line 68. Next, glue 94 is applied to the surface of the glued piece 22, and the creased lines 26 and 30 are folded forward. At this time, the glued piece 22 is set so as to enter between the folded side surface 20 and the lower flap 78, and the surface of the glued piece 22 is glued to the back surface of the side surface 20. At the same time, the back surface of the glued portion 64 of the glued piece 58 is glued to the surface of the inner bottom piece 40, and the back surface of the glued portion 86 of the glued piece 82 is glued to the surface of the bottom lid piece 66.

  Then, each of the crease lines 24, 26, 28, 30 is forwardly folded at 90 ° to form a rectangular box. At this time, the folded crease lines 42, 56, 68, and 80 are opened at 90 °, and the inner bottom piece 40 is provided with a crease line 43 so that it can be easily broken. Move while sliding. At this time, the bottom cover piece 66 and the inner bottom piece 40 are supported by the pair of lower flaps 54 and 78 from the outside of the box to form a bottom portion.

  Here, in the latter half of the assembling operation, the protruding piece 70 of the bottom cover piece 66 slides on the surface of the inner bottom piece 40 and is inserted into the guide cut portion 46 of the cutting line 44 and moves while being further deeply inserted. to continue. When the assembly operation is completed, the protruding piece 70 is inserted into the cutting line 44 and protrudes from the cutting line 44 to the inside of the packaging box 10 while pushing the flap 49 inwardly and swinging the flap 49. Then, the contact part 72 of the projection piece 70 and the contact part 48 of the cutting line 44 face each other and the edges contact each other, and the bottom cover piece 66 cannot move in the returning direction. As a result, the bottom cover piece 66 and the inner bottom portion 40 are locked, and are not folded inadvertently, so that the shape of the bottom portion is reliably maintained.

  In this state, the product is put in, the upper flaps 50 and 74 are normally folded at the crease lines 52 and 76, the upper lid piece 32 is then folded at the crease line 34, and the crease line 38 is then folded and inserted. The piece 36 is inserted inside the side surface 18. The upper lid piece 32 and the side surface 18 are stopped with, for example, a tamper-proof tape to prevent tampering.

  Even if the packaging box 10 assembled in this way tries to open the packaging box 10 containing the product from the bottom portion, an inner bottom piece 40 that covers almost the entire bottom portion is provided inside the bottom lid piece 70. Since the protruding piece 70 of the bottom cover piece 66 is locked to the cutting line 44 of the bottom piece 40, the product cannot be taken out from the bottom portion. Further, when a force is applied so that the glued portions 64 and 88 are peeled off from the inner bottom piece 40 or the bottom lid piece 70, the connecting portions of the cut lines 62 and 86 around the glued portions 64 and 88 are broken, and the trace of opening. Remains.

  On the other hand, when the packaging box 10 is folded to be discarded after use of the product, the inner bottom piece 40 and the bottom cover piece 66 are pushed toward the inner side of the box with a certain force or more. Then, the projecting piece 70 of the bottom cover piece 66 gets over the contact portion 48 of the cutting line 44 of the inner bottom piece 40, the lock is released, the bottom part is removed, and it is flattened by the crease lines 26, 30, and becomes flat. It becomes easy to discard.

  According to the packaging box 10 of this embodiment, a box body can be formed in one touch with a simple structure, and the inner bottom piece 40 can also be locked. Moreover, the glued pieces 58 and 82 connected to the lower flaps 54 and 78 are provided, the bottom lid piece 66 of the packaging box 10 is firmly held at the bottom part, and the inner bottom piece 40 that covers almost the entire bottom part is also provided at the bottom. The lid piece 66 is securely locked. Moreover, it has the structure which cannot take out goods easily from a bottom part by this, and can prevent the tampering of a contained thing reliably. Further, when a force such as putting a hand into the packaging box 10 from the side of the lower flaps 54, 78 is applied, the tamper-proof cut lines 62, around the glued portions 64, 88 of the lower flaps 54, 78 are provided. 86 joints are broken, leaving an open trace. This also has the effect of reliably preventing tampering. Further, since the inner bottom piece 40 and the bottom lid piece 66 are locked in the assembled state, the bottom portion of the packaging box 10 can be stably and efficiently assembled by automatic assembly by machine or manual operation, and mass production is possible.

  In addition, the packaging box 10 of this embodiment is a curve which curves so that the notch part 98 for guides formed in the cutting line 96 of the inner bottom piece 40 may approach the crease line 42 side, for example, as shown in FIG. It may be provided in. From the front end of the guide cut-out portion 98, a straight line portion 100 that is a short straight line toward the front end portion 40a of the inner bottom piece 40 is continuously provided. Further, the protruding piece 70 of the bottom cover piece 66 is formed in a semicircular shape without the abutment portion 72 provided like the protruding piece 70 shown in the packaging box 10 of FIG.

  Next, 2nd embodiment of the packaging box of this invention is described based on FIG. Here, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. In the packaging box 110 of this embodiment, the inner bottom piece 40 extends from the side surface 18 via the crease line 68, and the bottom lid piece 66 extends from the side surface 14 via the crease line 42. A cutting line 112 is provided at the center of the inner bottom piece 40, and the cutting line 112 is formed in a substantially U-shape opened to the distal end portion 40 a side of the inner bottom piece 40. The portion of the pair of U-shaped straight portions of the cutting line 112 that is away from the crease line 30 is a guide cut-out portion 46 in which a through hole 114 extending toward the corner portion 40b is formed. Further, the base end portion of the guide cut-out portion 46 is a straight contact portion 48 that is substantially perpendicular to the distal end portion 40 a of the inner bottom piece 40. As a result, the U-shaped inner side of the cutting line 112 becomes a flap 49 that can swing with respect to the inner bottom piece 40.

  The tip portion 66a of the bottom cover piece 66 is formed with a substantially trapezoidal protruding piece 116 that protrudes to the side of the tip portion 66a at a substantially middle position of the tip portion 66a. The protruding piece 116 is formed so that the width parallel to the distal end portion 66 a of the bottom cover piece 66 is slightly smaller than the width of the cutting line 112 of the inner bottom piece 40 and can be inserted. A portion of the protruding piece 116 close to the adjacent side surface 16 is a straight contact portion 72 substantially perpendicular to the tip end portion 66 a of the bottom lid piece 66.

  Also in this embodiment, the same effect can be obtained after the above implementation. Furthermore, the projecting piece 116 is easily inserted into the guide cut-out portion 46 of the inner lid piece 40 through the through-hole 114 and is reliably engaged.

  The guide cut portion 46 in which the through hole 114 according to this embodiment is formed may be formed along the entire length of the two sides of the cutting line 112, as shown in FIG. Thereby, the inside of the through-hole 114 and the inside of one side of the cutting line 112 becomes a flap 49 that can swing with respect to the inner bottom piece 40.

  Moreover, the through-hole 114 which forms the notch part 46 for guides may be formed along the full length of the cutting line 112, as shown in FIG. Thereby, the inside of the through-hole 114 and the inside of one side of the cutting line 112 becomes a flap 49 that can swing with respect to the inner bottom piece 40.

  In addition, as shown in FIG. 7, the through-hole 114 forming the guide cut portion 46 may be formed by being surrounded by a substantially trapezoidal cutting line 112.

  Note that the packaging box of the present invention is not limited to the above embodiment, and the position and size of the cutting line of the inner bottom piece are mutually matched according to the position, size, and shape of the protruding piece of the bottom cover piece. If it is surely combined, it can be changed freely. Further, the shape of the guide notch that continues to the cutting line can be freely changed, such as a straight line or a curved line. The size of each side surface, upper lid piece, and the like can be changed as appropriate according to the product to be put therein. Further, the structure of the bottom portion of the box forming piece of the present invention may be provided at other positions such as the upper lid portion.

It is an expanded view of the packaging box of 1st embodiment of this invention. It is a partial fracture perspective view of the packaging box of a first embodiment of this invention. It is an expanded view which shows the modification of the packaging box of 1st embodiment of this invention. It is an expanded view of the packaging box of 2nd embodiment of this invention. It is an expanded view of the packaging box of the modification of 2nd embodiment of this invention. It is an expanded view of the packaging box of the modification of 2nd embodiment of this invention. It is an expanded view of the packaging box of the modification of 2nd embodiment of this invention.

DESCRIPTION OF SYMBOLS 10 Packaging box 12 Box formation piece 14, 16, 18, 20 Side surface 22, 58, 82 Glued piece 32 Upper cover piece 36 Insert piece 40 Inner bottom piece 44 Cutting line 46 Guide cut-in part 50, 74 Upper flap 54, 78 Lower flap 62, 86 Cut line 66 Bottom cover piece 70 Projection piece 90, 92, 94 Glue

Claims (3)

It consists of a box-forming piece that is integrally punched from one blank sheet,
The box-forming piece is provided with side surfaces connected to each other and a bottom portion that closes one open end of the box formed by the connected side surfaces when the box-forming piece is in an assembled state.
The bottom portion includes a bottom lid piece that is continuous with the one side surface and covers a part of the bottom portion, a pair of lower flaps that extend from the side surfaces on both sides of the bottom lid piece, and the bottom flap provided on the bottom flap. A glued piece to be glued to the lid piece, a cut line formed around the glued portion provided on the glued piece, and a side surface facing the side surface on which the bottom lid piece is provided. almost a inner bottom piece for closing along the entire the box body side of the bottom cover piece of the bottom portion, the cutting lines provided in a central portion of said bottom piece, provided at the tip center of the bottom cover piece A protruding piece that is inserted into and locked with the cutting line, and a guide cut formed continuously from one end of the cutting line ,
When this guide cut-in part is assembled from a state in which the necessary part of the box-forming piece is bonded and two of the creased lines between the connected side faces are normally folded and folded, When the protruding piece is formed in a direction intersecting with the locus of sliding on the outer surface of the inner bottom piece, and the bottom lid piece and the inner bottom piece are assembled in a flush state, The projecting piece extends from a position corresponding to the base end of the inserted projecting piece, which is the end of the cutting line opposite to the crease line between the side surfaces of the box-forming piece. A packaging box characterized by being formed so as to substantially follow a locus of sliding .   The packaging box according to claim 1, wherein the guide cut portion is formed by a straight line or a curved line.   The packaging box according to claim 1, wherein the guide cut portion is a through hole formed by the cut line.

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