JP3154981U - Packaging box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging box capable of easily opening a lid part. SOLUTION: A first surface and a second surface constituting an opening facing each other, a first lid portion connected to the first surface via a first fold line, and a second surface on the second surface. And a second lid portion provided opposite to the first lid portion and being folded over the first lid portion so that the second lid portion is overlapped with the first lid portion. A box that is connected to the end of the second lid portion via a third fold line, and is inserted on the first fold line or on the first lid portion. The insertion piece is inserted, and the first lid portion and the second lid portion hold the state where the opening is closed, and the third fold line is the second lid portion. The packaging box is curved so that the side is convex. [Selection] Figure 3

Description

  The present invention relates to a packaging box, and more particularly to a packaging box capable of easily opening a lid.

  Conventionally, a packaging box is used when taking a cake or the like home. As a configuration for opening the lid portion of the packaging box, the lid portion of the paper box is provided with a pushing portion into which the finger is inserted when it is pushed in (see, for example, Patent Document 1), or the difference between the lid portions. A substantially U-shaped ruled line is formed in the center of the insertion part over the entire length in the depth direction of the insertion part, and the upper end is substantially C-shaped ruled by being surrounded by the substantially C-shaped ruled line. There is known a configuration in which a V-shaped ruled line connected to the upper end is formed (see, for example, Patent Document 2).

  In addition, it cuts and raises the bowl-shaped insertion piece extending from the side of the box body to the lower surface flap, and forms an insertion slit for inserting the insertion piece into the bent portion of the base of the insertion piece formed on the lid, There is also known a configuration in which concave portions corresponding to each other are formed at substantially the center portion of the insertion slit formed in the insertion piece (for example, see Patent Document 3).

Japanese Patent Laid-Open No. 2002-19766 JP 2003-291944 A JP-A 61-69543

  However, in the configuration described in Patent Document 1, there is an inconvenience that when the lid portion is opened, the pushing portion has to be pushed in so as to be immersed therein. The configuration of Patent Document 2 is a configuration that prevents irregular wrinkles from occurring in the insertion portion when the lid portion is opened, and the configuration of Patent Document 3 is a configuration that prevents the insertion slit portion from being damaged. There is no configuration for facilitating the opening of the lid.

  This invention is made | formed in view of the said subject, Comprising: It aims at providing the packaging box which can open a cover part easily.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

That is, in the first device, a first surface and a second surface that are opposed to each other to form an opening, a first lid portion that is connected to the first surface via a first fold line, A second lid portion provided on the second surface via a second fold line and provided to face the first lid portion, and the second lid portion is stacked on the first lid portion. A packaging box that closes the opening by bending,
An insertion piece that is connected to an end of the second lid portion via a third fold line and is bent at the third fold line;
Provided on the first fold line or on the first lid, the insertion piece is inserted, and the state in which the opening is closed between the first lid and the second lid is maintained. An insertion part,
The third fold line is curved so that the second lid portion is convex.

In the second device, in the first device,
The insertion piece is a packaging box in which a ruled line is formed in a direction intersecting the third fold line.

In the third device, in the first device,
The insertion piece is a packaging box in which a ruled line that passes through substantially the center of the third fold line and is substantially orthogonal to the third fold line is formed.

In the fourth device, in the first to third devices,
The insertion portion is a packaging box provided with a slit into which the insertion piece is inserted, and a recess that communicates with the slit and is formed on the opposite side of the first fold line with respect to the slit.

In the fifth device, in the fourth device,
The insertion part has the slit formed on the first fold line,
The first surface is a packaging box that communicates with the slit and includes a notch at a position corresponding to the recess.

In the sixth device, in the first to fifth devices,
The first surface is a top surface and the second surface is a bottom surface.

  The effects of the present invention are as follows.

  According to the first device, the third fold line between the second lid portion and the insertion piece is curved so that the second lid portion side is convex. When bent, the proximal end portion of the insertion piece is curved along the third fold line. And in the state which obstruct | occluded the opening part with the 1st cover part and the 2nd cover part, and inserted the insertion piece in the insertion part, the base end part of an insertion piece faces outward of the packaging box. It will be in the state which protruded and curved toward the 2nd surface side. For this reason, when a finger is put on the insertion piece for opening, the area to be put on the insertion piece is widened, the finger can be easily put on, and a force is easily applied at the time of opening. And by pushing in toward the 2nd surface side, an insertion piece receives the force of the direction extracted from an insertion part, and will be extracted from an insertion part. For this reason, opening can be performed easily.

  According to the second invention, since the insertion piece is formed with a ruled line in a direction intersecting the third fold line, when the insertion piece is bent along the third fold line, or the insertion piece is inserted. When the finger is put on the insertion piece for opening in the state of being inserted into the part, the insertion piece is easily bent along the ruled line. For this reason, it is possible to bend the insertion piece with a light force, and it is easy to put the finger on the insertion piece at the time of opening, and the opening can be easily performed.

  According to the third device, since the insertion piece passes through the substantially central portion of the third fold line and a ruled line that is substantially orthogonal to the third fold line is formed, the insertion piece is bent at the third fold line. At the time, or when the insertion piece is inserted into the insertion portion and the finger is put on the insertion piece for opening, the insertion piece is bent at substantially the center. For this reason, it becomes easy to put a finger on an insertion piece in the case of opening, and can open a 2nd cover part easily.

  According to the fourth device, the insertion portion includes a slit into which the insertion piece is inserted, and a recess that communicates with the slit and is formed on the opposite side of the first fold line with respect to the slit. In the state where the insertion piece is inserted into the insertion portion, a recess is formed in the direction in which the insertion piece is bent, and the bending of the insertion piece is not hindered by the first lid portion. For this reason, it becomes easy to curve an insertion piece in the case of opening, and opening can be performed easily.

  According to the fifth aspect, the insertion portion has a slit formed on the first fold line, the first surface communicates with the slit, and has a notch portion at a position corresponding to the concave portion. When a finger is put on the insertion piece through the notch, a concave portion is formed in the direction in which the insertion piece is bent at the position where the finger is put, and the insertion piece can be easily bent and opened easily. it can.

  According to the sixth device, since the first surface is the top surface and the second surface is the bottom surface, the opening portion is closed by the first lid portion and the second lid portion, and the insertion piece is inserted into the insertion portion. In the state of being inserted into the base, the base end portion of the insertion piece protrudes outward from the packaging box and is curved toward the bottom surface. For this reason, when a finger is put on the insertion piece for opening, the area of the insertion piece on the insertion piece is widened so that the finger can be easily put on and the force is easily applied. And by pushing in toward a bottom face side, an insertion piece will receive the force of the direction extracted from an insertion part, and will be extracted from an insertion part. For this reason, opening can be performed easily.

The top view of the box expansion formation body 12 of the packaging box 11 which concerns on 1st Embodiment. The top view of the semi-finished state of the packaging box 11. FIG. FIG. 4 is a simplified perspective view showing a state in the middle of assembling the packaging box 11. The perspective simplified view which shows the completed body of the packaging box 11 which concerns. FIG. 5 is an end view taken along line 5-5 in FIG.

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

  A packaging box 11 according to a first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a plan view of the box unfolded body 12 of the packaging box 11, and FIG. 2 is a plan view of the packaging box 11 in a semi-finished state. The packaging box 11 is formed by assembling the box development formed body 12 shown in FIG. 1, and is a packaging box 11 that accommodates a decoration cake or the like and is used for take-out. The packaging box 11 is formed of cardboard such as paperboard or cardboard. In addition to cardboard, a plate-like member using a resin material may be used.

  As shown in FIG. 1, the packaging box 11 includes a first side surface 31, a top surface 41 as a first surface, and a second side surface 51, which are sequentially connected to an end portion of a bottom surface 21 as a second surface. The first upper lid part 42 as a first lid part and the first lower lid part 23 as a second lid part, and the second upper lid part 43 and a second lid as a first lid part are formed in a cylindrical shape. This is a so-called sack-type packaging box 11 that is closed by a second lower lid part 24 as a part. The packaging box 11 is delivered to a cake shop or the like in a folded and semi-finished state (see FIG. 2), and final assembly is performed before the decoration cake or the like is accommodated to obtain a finished packaging box 11.

  Hereinafter, for ease of explanation, the side on which the opening is formed is defined as the front-rear direction. 1 to 5 is the front side, and the right side is the rear side. Further, in the vertical direction, the packaging box 11 is assembled and placed with the bottom surface 21 facing down, and the bottom surface 21 side is set downward. Although the packaging box 11 according to the present embodiment is a sack type, the present invention can be applied to a packaging box 11 of a type other than the sack type. The present invention is not limited to the embodiment.

  The part which comprises the packaging box 11 according to the box expansion formation body 12 shown in FIG. 1 is demonstrated. FIG. 1 shows the inner surface of the packaging box 11 as the front side of the page. First, the bottom surface 21 is a portion constituting the bottom portion of the packaging box 11. A first side surface 31 constituting a side surface of the packaging box 11 is connected to the first end portion of the bottom surface 21 via a first side fold line 61. A first lower lid portion 23 serving as a second lid portion constituting the front lid portion is connected to the front end portion of the bottom surface 21 via a first lower lid portion fold line 63 serving as a second fold line. ing.

  A first insertion piece 25 is connected to the front end of the first lower lid portion 23 via a first insertion piece fold line 81 as a third fold line. The 1st insertion piece crease line 81 as a 3rd crease line is curving so that the 1st lower lid part 23 side as the 2nd lid part may become convex. The first insertion piece 25 is formed with a first ruled line 83 that passes through a substantially central portion of the first insertion piece fold line 81 and is substantially orthogonal to the first insertion piece crease line 81.

  A second lower lid portion 24 as a second lid portion constituting the rear lid portion is connected to a rear end portion of the bottom surface 21 via a second lower lid portion fold line 64 as a second fold line. It is installed. The second insertion piece 26 is connected to the rear end portion of the second lower lid portion 24 via a second insertion piece fold line 82 as a third fold line. The 2nd insertion piece crease line 82 as a 3rd crease line is curving so that the 2nd lower lid part 24 side as the 2nd lid part may become convex. The second insertion piece 26 is formed with a second ruled line 84 that passes through a substantially central portion of the second insertion piece crease line 82 and is substantially orthogonal to the second insertion piece crease line 82.

  The attachment surface 22 is connected to the second end portion of the bottom surface 21 opposite to the first end portion via an attachment surface crease line 62. The attachment surface 22 is a member that is fixed to the second side surface 51 and fixes the bottom surface 21 to the second side surface 51.

  Of the end portions of the first side surface 31, the top surface 41 as the first surface constituting the top portion of the packaging box 11 is connected to the end portion facing the bottom surface 21 via the top surface fold line 65. ing. A first front flap 32 is connected to the front end of the first side surface 31 via a first front flap fold line 66, and a first rear flap is connected to the rear end of the first side surface 31. The flap 33 is connected via a first rear flap fold line 67.

  Among the end portions of the top surface 41, the second side surface 51 constituting the side surface of the packaging box 11 is connected to the end portion facing the first side surface 31 via the second side fold line 70. . A first upper lid portion 42 as a first lid portion constituting the front lid portion is connected to the front end portion of the top surface 41 via a first upper lid portion fold line 71 as a first fold line. Yes.

  The first insertion piece 25 is inserted on the first upper lid fold line 71 and the first upper lid portion 42, and the opening of the packaging box 11 is formed by the first upper lid portion 42 and the first lower lid portion 23. A first insertion portion 91 is formed in which the closed state is maintained. The first insertion portion 91 communicates with the first slit 93 into which the first insertion piece 25 is inserted and the first slit 93, and is formed on the opposite side of the first upper lid fold line 71 with respect to the first slit 93. The first recess 93 is formed on the first upper lid fold line 71, and the first recess 95 is formed on the first upper lid 42. Further, the front end of the top surface 41 is provided with a first notch 97 that communicates with the first slit 93 and is formed at a position corresponding to the first recess 95.

  A second upper lid portion 43 serving as a first lid portion constituting the rear lid portion is connected to a rear end portion of the top surface 41 via a second upper lid portion fold line 72 serving as a first fold line. Has been. The second insertion piece 26 is inserted on the second upper lid fold line 72 and the second upper lid portion 43, and the opening of the packaging box 11 is formed by the second upper lid portion 43 and the second lower lid portion 24. A second insertion portion 92 is formed in which the closed state is maintained. The second insertion portion 92 communicates with the second slit 94 into which the second insertion piece 26 is inserted and the second slit 94, and is formed on the opposite side of the second upper lid fold line 72 with respect to the second slit 94. The second recess 96 is formed on the second upper lid fold line 72, and the second recess 96 is formed on the second upper lid 43. In addition, the rear end portion of the top surface 41 includes a second notch 98 that communicates with the second slit 94 and is formed at a position corresponding to the second recess 96.

  A second front flap 52 is connected to a front end portion of the second side surface 51 via a second front flap fold line 68, and a second rear flap is connected to a rear end portion of the second side surface 51. A flap 53 is provided continuously via a second rear flap fold line 69.

  A pair of grip portions 46 each having an arcuate cut formed in parallel are formed at the center of the top surface 41. The grip part 46 forms a handle by raising it upward with respect to the top plate (see FIG. 4). In addition, the transparent film 13 having visibility is attached so as to cover substantially the entire inside of the top surface 41. The transparent film 13 is for closing the cut-and-raised hole 47 after raising the gripping part 46 upward to prevent intrusion of dust and the like.

  Next, the case where the packaging box 11 is assembled to a semi-finished state will be described. As shown in FIG. 1 and FIG. 2, first, the second side fold line 70 is folded, the second side 51 is folded back with respect to the top surface 41, and the second front flap 52 is the first upper lid 42, 2. The rear flap 53 is overlapped with the second upper lid portion 43. Next, the first side surface fold line 61 is folded, the first side surface 31 is folded back with respect to the bottom surface 21, the first front flap 32 is on the first lower lid portion 23, and the first rear flap 33 is on the second lower side. It overlaps with the lid part 24. Then, the second side surface 51 is overlapped with the mounting surface 22, and the second side surface 51 and the mounting surface 22 are fixed. The fixing is performed by fixing a substantially entire surface of the mounting surface 22 and the second side surface 51 by using a bonding means using an adhesive or a fixing means such as heat welding. Thereby, as shown in FIG. 2, the packaging box 11 will be in the semi-finished state folded in substantially half.

  The packaging box 11 according to the present embodiment is a sack type, and in the assembly up to the semi-finished state, all the folds are valley folds, and the portion to be fixed is only between the attachment surface 22 and the second side surface 51. Therefore, the pasting operation can be easily automated by the pasting machine, and the manufacturing cost can be reduced. Further, in the semi-finished state, the packaging box 11 is thin and compact, so that it can be easily transported and stored.

  Next, the case where the folded packaging box 11 in a semi-finished state is assembled to a finished body will be described. FIG. 3 is a simplified perspective view showing a state in the middle of assembling the packaging box 11, FIG. 4 is a simplified perspective view showing a completed product of the packaging box 11, and FIG. It is an end view in a line. As shown in FIG. 3, the top surface crease line 65 and the mounting surface crease line 62 that have not yet been folded are valley-folded, and the first side surface 31 and the second side surface 51 are raised with respect to the bottom surface 21. The bottom surface 21, the first side surface 31, the top surface 41, and the second side surface 51 are cylindrical. The decoration cake etc. are accommodated in the state formed in the cylinder shape.

  As shown in FIGS. 3 and 4, the front side assembly is performed by first folding the first front flap crease line 66, bending the first front flap 32 inward, and then folding the second front flap crease line 68. The second front flap 52 is bent inward. Then, the first upper lid part crease line 71 is folded and the first upper lid part 42 is bent downward.

  Next, the first insertion piece 25 at the end of the first lower lid portion 23 is bent at the first insertion piece fold line 81, and the base end portion of the first insertion piece 25 is bent into the first insertion piece fold. Curve along line of sight 81. At this time, the first insertion piece 25 is bent along the first ruled line 83. Then, the first lower lid part fold line 63 is folded, the first lower lid part 23 is erected with respect to the bottom surface 21, and the first upper lid part 42 and the first lower lid part 23 close the opening. At the same time, the first insertion piece 25 is inserted into the first slit 93 of the first insertion portion 91. Since the first insertion piece 25 is inserted into the first slit 93 of the first insertion portion 91, the opening on the front side of the packaging box 11 is closed by the first upper lid portion 42 and the first lower lid portion 23. The state is maintained. At this time, the base end portion of the first insertion piece 25 (peripheral portion of the first insertion piece fold line 81) protrudes outward from the packaging box 11, and the first lower lid portion 23. It is in a state of being curved toward the side (see FIGS. 4 and 5).

  As for the rear side assembly, in the same manner as the front side, the first rear flap crease line 67 is folded and the first rear flap 33 is bent inward, the second rear flap crease line 69 is folded and the second rear flap 53 Bend inward. Then, the second upper lid part crease line 72 is folded and the second upper lid part 43 is bent downward.

  Next, the second insertion piece 26 at the end of the second lower lid portion 24 is bent at the second insertion piece fold line 82, and the base end portion of the second insertion piece 26 is bent into the second insertion piece fold. Curve along the line of sight 82. At this time, the second insertion piece 26 is bent along the second ruled line 84. Then, the second lower lid part crease line 64 is folded, the second lower lid part 24 is erected with respect to the bottom surface 21, and the second upper lid part 43 and the second lower lid part 24 close the opening. At the same time, the second insertion piece 26 is inserted into the second slit 94 of the second insertion portion 92. Since the second insertion piece 26 is inserted into the second slit 94 of the second insertion portion 92, the opening on the rear side of the packaging box 11 is closed by the second upper lid portion 43 and the second lower lid portion 24. The maintained state is maintained. At this time, the base end portion of the second insertion piece 26 (peripheral portion of the second insertion piece fold line 82) protrudes outward from the packaging box 11, and the second lower lid portion 24. It is in a state of being curved toward the side (see FIG. 5).

  Next, the case where the packaging box 11 assembled as described above is opened will be described. Since the opening of the front side of the packaging box 11 and the opening of the rear side of the packaging box 11 are performed by the same operation, only the opening of the front side of the packaging box 11 will be described. As shown in FIG. 5, the base end portion of the first insertion piece 25 (the peripheral portion of the first insertion piece fold line 81) protrudes outward from the packaging box 11, and the first lower lid It is in a state of being curved toward the portion 23 side, and is bent along the first ruled line 83 of the first insertion piece 25.

  At the time of opening, the finger F is put on the first insertion piece 25 through the first notch 97 formed at the front end of the top surface 41. At this time, the base end portion of the first insertion piece 25 protrudes outward of the packaging box 11 and is curved along the first ruled line 83 toward the first lower lid portion 23 side. Therefore, the area of the first insertion piece 25 to be fingered is increased, the finger can be easily hooked, and force can be easily applied at the time of opening.

  Then, the first insertion piece 25 is pushed toward the first lower lid portion 23 side with the finger F hung on the first insertion piece 25 and pulled toward the outside of the packaging box 11, so that the first The insertion piece 25 receives a force in the direction of being extracted from the first slit 93 of the first insertion portion 91, and is extracted from the first insertion portion 91. In addition, since the 1st recessed part 95 is formed in the 1st insertion part 91, the curve of the 1st insertion piece 25 is not prevented by the 1st upper cover part 42. FIG. For this reason, it becomes easy to curve an insertion piece in the case of opening, and can open easily. And after removing the 1st insertion piece 25 from the 1st slit 93 of the 1st insertion part 91, the 1st upper cover part 42 and the 1st lower cover part 23, the 1st front flap 32, and the 2nd front By opening the flap 52, the front side of the packaging box 11 can be easily opened.

  In addition, embodiment is not limited above, For example, you may change as follows.

  The opening part of the packaging box 11 is provided on the front side and the rear side, and the front side and the rear side of the packaging box 11 are opened. However, the opening part is provided on the side part or the upper part, and the side part or the upper part is opened. You may do it.

  Although the openings of the packaging box 11 are provided at two locations, the number may be one.

  The technical scope of the present invention described above is not limited to the above embodiment, and is not limited to the shape of the above embodiment. The technical scope of the present invention broadly covers the entire scope of technical ideas that the present invention truly intends, as will be apparent from the matters described in the present specification and drawings.

DESCRIPTION OF SYMBOLS 11 Packaging box 12 Box expansion formation body 13 Transparent film 21 Bottom face 22 Mounting surface 23 1st lower cover part 24 2nd lower cover part 25 1st insertion piece 26 2nd insertion piece 31 1st side surface 32 1st front flap 33 First rear flap 41 Top surface 42 First upper lid portion 43 Second upper lid portion 46 Gripping portion 47 Cutting hole 51 Second side surface 52 Second front flap 53 Second rear flap 81 First insertion piece fold line 82 Second Insertion fold line 83 1st ruled line 84 2nd ruled line 91 1st insertion part 92 2nd insertion part 93 1st slit 94 2nd slit 95 1st recessed part 96 2nd recessed part 97 1st notch part 98 2nd notch Part

Claims (6)

A first surface and a second surface that constitute an opening facing each other, a first lid portion that is connected to the first surface via a first fold line, and a second fold line on the second surface And a second lid portion provided opposite to the first lid portion, and the opening portion is closed by bending the second lid portion so as to overlap the first lid portion. A packaging box for
An insertion piece that is connected to an end of the second lid portion via a third fold line and is bent at the third fold line;
Provided on the first fold line or on the first lid, the insertion piece is inserted, and the state in which the opening is closed between the first lid and the second lid is maintained. An insertion part,
The packaging box, wherein the third fold line is curved so that the second lid side is convex.   The packaging box according to claim 1, wherein the insertion piece has a ruled line formed in a direction intersecting the third fold line.   2. The packaging box according to claim 1, wherein the insertion piece has a ruled line passing through a substantially central portion of the third fold line and substantially orthogonal to the third fold line.   The insertion portion includes a slit into which the insertion piece is inserted, and a recess that communicates with the slit and is formed on the opposite side of the first fold line with respect to the slit. Item 4. A packaging box according to any one of Items 1 to 3. The insertion part has the slit formed on the first fold line,
The packaging box according to claim 4, wherein the first surface includes a notch at a position that communicates with the slit and corresponds to the recess.   The packaging box according to any one of claims 1 to 5, wherein the first surface is a top surface and the second surface is a bottom surface.

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