JP5607377B2 - Packaging case - Google Patents

Description

  The present invention relates to a packaging case suitable for storing cosmetics, daily necessities, and other articles for sale and display.

  As a container for packaging cosmetics and other haberdashery, a case is used in which a sheet formed of a highly transparent plastic is punched into a predetermined shape and then folded along a folding ruled line formed on the surface thereof to be assembled into a hexahedron. .

  FIG. 9 shows an example thereof. In this case, a sheet S in which the four side surface portions 11, 12, 13, 14 and the glue margin surface portion 15 and the upper and lower lid portions 16 and 16 are connected is formed on the surface. The left and right side surface portions 13 are folded at the bent ruled line L and the glue margin surface portion 15 is fixed to the end of the right side surface portion 13 to form a cylinder, and upper and lower lid portions 16 and 16 are formed in the upper and lower openings of the cylinder body. , 14 and the inner flaps 17 and 17 provided on the upper and lower edge portions of the back surface 12 and the outer lid 18 provided on the upper and lower edge portions of the back surface portion 12 are folded and further protruded at the center of the upper and lower edge portions of the front portion 11. By inserting the combined piece 19 into a locking slit 18b formed in the insertion piece 18a of the outer lid 18, the upper and lower openings are closed and assembled into a box shape (see, for example, Patent Document 1).

  Further, as shown in FIG. 10A, an inner lid 20 is connected to the upper end of the front portion 11 with a folding ruled line L in between, and an engagement piece provided at the distal end of the outer lid 18 on the inner lid 20. A locking slit 20a for engaging 19 is formed, the inner flaps 17, 17, the inner lid 20 and the outer lid 18 are folded on the upper opening of the case, and the engagement piece 19 is inserted into the locking slit 20a to insert the inner lid. A case is also known in which the upper opening is closed by being engaged with the lower side of 20 (see, for example, Patent Document 2).

JP 2000-85747 A JP 2004-352273 A

  In the case shown in FIG. 9, the engaging piece 19 is engaged with the insertion piece 18a, and in the case shown in FIG. 10, the engaging piece 19 is engaged with the inner lid 20, thereby closing the outer lid 18 together. It is possible to securely close the opening of the case by holding it in position.

However, even if the case shown in FIG. 9 can hold the outer lid 18 in the closed position, the case body swells in a state in which the article is stored depending on the shape, size, and weight of the article stored in the case. Thus, a large gap is formed between the insertion piece 18a and the inner surface of the front portion 11, and dust and foreign matter may enter the case from this gap.
Further, when the case in which the article is packaged is being transported or displayed, the case may be twisted and the engagement piece 19 may come off from the locking slit 18b and the outer lid 18 may be opened. In order to prevent this, it is necessary to fix the engaging piece 19 in the locking slit 18b by fastening the outer lid 18 with an adhesive tape or the like.

  The case shown in FIG. 10 can close the upper opening of the case by overlapping the inner flaps 17, 17, the inner lid 20 and the outer lid 18, but the locking slit 20 a of the inner lid 20 has its folding ruled line L Since the engagement piece 19 is inserted into the engagement slit 20a and the engagement slit 19a is inserted into the engagement slit 20a, the inner surface of the front portion 11 and the engagement slit 20a, as shown in FIG. A gap S is formed between them, and coupled with the fact that the locking slit 20a is formed in a straight line, the engagement piece 19 rattles below the inner lid 20 during case transportation or the like, and the locking slit 20a. It was necessary to fasten the outer lid 18 with an adhesive tape for preventing unsealing.

  SUMMARY OF THE INVENTION In view of the above-described problems of the prior art, the present invention provides a packaging case in which a sheet having a predetermined shape is folded to be assembled into a hexahedron, and the opening of the case is securely sealed with a lid, and fastening means such as an adhesive tape is used. Even if not used, the lid that closes the case opening is fixed in the closed position so that the case will not be opened by the impact or force applied while the case is being transported. .

In order to solve the above problems, the present invention provides a sheet in which upper and lower lid portions are continuously provided with upper and lower edge portions of the four side surface portions sandwiched between the folding ruled lines and sandwiched between the upper and lower edge portions of the four side surface portions. In a packaging case that is assembled into a hexahedron by folding the upper and lower lids on the upper and lower openings of this cylinder, fixing the glue margin part provided on one side end to the other side end to form a cylinder,
The upper and lower lid portions are a pair of inner flaps,
An outer lid having a tongue-shaped insertion piece with a root portion narrowed in a narrow width and a fan-shaped tip side spread at the tip;
The incision part into which the insertion piece is engaged consists of an inner lid formed in the lid surface,
The entire cut portion has a length that allows the insertion piece to be inserted, and a portion of the central portion through which the root portion of the insertion piece is inserted extends from the bent ruled line side to the distal end side of the inner lid. It is formed in a shape that is bent in a bow shape or bent in a bow shape toward the top, and that both sides thereof are bent from the end of the bent or bent portion toward the tip side of the inner lid and extend in a slanting linear shape. ,
The inner lid and the outer lid are folded on the inner flap folded into the opening surface of the cylindrical body, the insertion piece of the outer lid is inserted into the cut portion of the inner lid, and the root portion of the inserted piece is along the cut portion. The entire wide tongue-like portion of the insertion piece that is bent or bent and enters the lower side of the inner lid is held in a curved or bent shape, and the tongue-like portion engages with the lower surface of the inner lid and the inner flap. it is characterized by having a configuration in which the opening is provided so as to be closed.

In the packaging case having the above-described configuration, the insertion piece is formed in a narrowed shape at the base portion connected to the outer lid, and in a wide tongue shape on the tip side. In addition, the cut portion has a length that can be inserted by the insertion piece, and the portion into which the root portion of the insertion piece is inserted, that is, the central portion of the cut portion is curved in a bow shape or bent in a “<” shape. It is provided and formed.
According to this, the insertion piece is deformed into a shape along the cut portion and inserted into the cut portion, and in the inserted state, the insertion piece is bent or bent along the cut portion. The entire wide tongue-like portion that has entered the lower side of the inner lid of the insertion piece is kept in a curved or bent shape, and the tongue-like portion is securely engaged with the lower surface of the inner lid and the inner flap, respectively. The insertion piece is difficult to remove from the cut portion.
In addition, the notch where the insert piece is engaged is provided in the surface of the inner lid, not the edge of the front part, so when the insert piece of the outer lid is inserted into the notch, the notch is covered with the outer lid. The cover piece hidden behind the outer cover is not exposed to the outside of the case, and the inserted piece inserted into the cut portion is difficult to come off. In this case, if the cut portion is provided close to the folding ruled line of the inner lid, and more preferably provided at a position about the thickness of the sheet in the direction of the inner lid from the bent ruled line, it is inserted into the cut portion. When the piece is inserted, the insertion piece overlaps and is joined to the inner surface of the front portion, so that the removal of the insertion piece becomes more difficult and the case is difficult to open.

In the case of the present invention assembled in a box shape, the upper and lower lid portions are composed of four flaps of a pair of inner flap, inner lid, and outer lid, and these are folded over the opening of the case to multiplex the openings. The four overlapped flaps are held in the closed position by inserting the insertion piece provided at the tip of the outer lid into the notch formed on the inner lid and engaging with the inner lid. The opening can be reliably closed. Since the opening of the case is surrounded by four flaps with the outer lid covered on the inner lid, there is no gap between the outer lid and the four side surfaces, and the inside of the case is securely sealed.
In the above configuration, the cut portion has a curved or bent portion, and can be formed in a stripe shape or a long hole shape with a width that can be inserted into the insertion piece, and each of the insertion piece and the cut portion is an outer lid. A plurality of locations may be provided corresponding to the position of the inner lid.

In the above-described configuration, the material of the sheet constituting the case is composed of a bio-derived resin such as polyethylene terephthalate, polypropylene, polyethylene, polycarbonate, or polylactic acid having good folding resistance, other resin alone or a composite thereof. Plastic sheets can be used. In particular, a sheet made of polyethylene terephthalate is preferable in terms of good transparency and high rigidity. Among them, amorphous PET (A-PET) is more transparent and unstretched, and therefore has a strength regardless of the direction of the sheet. It is preferable at a high point.
The thickness of the sheet can be set to 0.1 to 0.8 mm. If it is thinner than 0.1 mm, the surface portion is likely to bend or break, and if it is thicker than 0.8 mm, the pressure required for bending increases. Considering folding resistance and rigidity, it is preferable to set the thickness to 0.2 to 0.6 mm.
Regardless of the type of folding ruled line attached to the sheet, a ruled line with slits such as perforations, a depressed ruled line with slits, a ruled line with V-shaped, U-shaped, trapezoidal grooves intermittently or continuously, Appropriate types of ruled lines that can bend the sheet along the ruled line, such as a two-level ruled line with a two-step groove inside the groove, and a ruled line in which streak-like grooves are arranged in parallel and close together, the dimensions of the case, the sheet material, It can be set as appropriate according to the rigidity, thickness, and the like.

It is an expanded view of the sheet | seat which comprises the packaging case of one Embodiment of this invention. It is a principal part enlarged view of the sheet | seat of FIG. It is the figure which expanded and showed the insertion piece of the outer cover, and the notch part of the inner cover. When the sheet of FIG. 1 is folded and the packaging case is assembled, (A) shows a state in which the inner lid is folded, and (B) shows an appearance in a state in which the outer lid is folded. It is an internal permeation | transmission figure of the case of the state which inserted the insertion piece in the notch part. It is a principal part cutting end view of the upper cover part in the state where the outer cover was folded up. (A), (B) is the figure which showed the other form of the notch part formed in an inner cover, respectively. It is the figure which showed the external appearance of the upper cover part of other embodiment of the packaging case of this invention. (A) in the conventional packaging case is a sheet development view, and (B) is an external view of the case. (A) in the other example of the conventional packaging case is an external view, (B) is a principal part cutting end view of the upper cover part in the state which folded the outer cover.

Preferred embodiments of the present invention will be described with reference to the drawings.
The packaging case according to the present invention includes a sheet in which upper and lower lid portions are continuously provided with upper and lower edge portions of the four side surface portions sandwiched between the folding ruled lines, and one side end of the four side surface portions. 1 is a case in which the adhesive surface provided on the other side is fixed to the other end to form a cylinder, and the upper and lower lids are folded on the upper and lower openings of the cylinder to be assembled into a hexahedron. FIG. The structure of the sheet | seat which expanded the case of embodiment is shown.

  The sheet S is composed of a rectangular plate surface, and each surface portion of the front surface portion 1, the back surface portion 2, the left and right side surface portions 3, 4 and the adhesive margin surface portion 5 is continuously provided with a vertical folding ruled line Lv interposed therebetween, The upper and lower lid portions 6 and 6 are provided in a shape in which the upper and lower edge portions of the four side surface portions are sandwiched between the horizontal folding ruled lines Lh.

  The upper and lower lid parts 6, 6 include inner flaps 7, 7 connected to the upper and lower edges of the left and right side parts 3, 4, an outer lid 8 connected to the upper and lower edges of the back part 2, and the front part 1. And an inner lid 9 connected to the upper and lower edges.

  Specifically, as shown in FIG. 2 and FIG. 3, the outer lid 8 has a length H from the bent ruled line Lh to the front end portion that is equal to the thickness T of the sheet S than the width D of the left and right side portions 3 and 4. It is provided so as to be short (H = DT), and at the center of the tip, a tongue-like insertion piece 8a whose root is narrowed and fanned at the tip side is folded and a ruled line Lv is sandwiched between them. It is connected.

The inner lid 9 is substantially the same length as the outer lid 8 and protrudes from the edge portion of the front portion 1, and is slit-shaped at the center in the plane and away from the folding ruled line Lh by the thickness T of the sheet S. The notch 9a is formed.
More specifically, as shown in FIG. 3, the entire cut portion 9a has a length that allows the insertion piece 8a to be inserted, and the center portion 9a1 has a length that allows the root portion of the insertion piece 8a to be inserted. The portion is bent to form a curved shape bulging from the side of the ruled line Lh toward the front end side of the inner lid 9, and both sides 9 a 2 and 9 a 2 are bent from the end of the curved portion to the front end side of the inner lid 9 and slanted It is formed in a shape extending linearly.

  The sheet S formed in this way bends the four side surface portions 1, 2, 3, and 4 along each folding ruled line Lv, and the glue margin surface portion 5 provided at the side edge of the front surface portion 1 is on the side of the right surface surface portion 3. As shown in FIG. 4, inner flaps 7, 7 folded inward along the folding ruled line Lh are formed at the upper and lower openings of the cylinder, integrally fixed to the end portion with an adhesive or the like. The inner lid 9 is folded, and then the insertion piece 8a of the outer lid 8 folded on the inner lid 9 is inserted into the cut portion 9a and engaged to be assembled into a box shape.

In the state where the outer lid 8 is folded on the inner lid 9 and the insertion piece 8a is inserted into the notch 9a, the insertion piece 8a is curved at the lower side of the inner lid 9 as shown in FIG. As shown in FIG. 6, the entire portion is curved along the central portion 9 a 1, and overlaps and is joined to the inner surface of the front portion 1, and the curved wide tongue-shaped portion is formed between the lower surface of the inner lid 9 and the inner flap 7. , 7 are securely engaged with each other, so that the outer lid 8 is securely held at a position for closing the opening of the cylindrical body, and the inside of the case is sealed. A fastening means such as an adhesive tape for fastening the outer lid 8 is not necessary.
In addition, the notch 9a is covered with the outer lid 8, hidden behind the outer lid 8 and not exposed to the outside of the case, so that the insertion piece 8a is difficult to be removed, and an impact or force is applied to the case during transportation of the case. But the case never opens.

  In the packaging case having the above structure, in order to make it difficult for the insertion piece 8a to be removed from the cut portion 9a, the entire cut portion 9a is provided in a bent shape or a long hole shape as shown in FIG. Also good. Further, as shown in FIG. 8, a plurality of insertion pieces 8 a and cut portions 9 a may be provided at positions corresponding to the outer lid 8 and the inner lid 9.

  The illustrated case shows an example of the embodiment of the present invention, and the packaging case of the present invention is not limited to this, and an appropriate form according to the size and shape of the article to be stored, the packaging mode, etc. Can be configured.

S sheet, 1 front portion, 2 back portion, 3, 4 left and right side portions, 5 glue margin surface portion, 6 lid portion, 7 inner flap, 8 outer lid, 8a insertion piece, 9 middle lid, 9a cut portion, Lv vertical bending Ruled line, horizontal folding ruled line

Claims (3)

Upper and lower lid portions (6, 6) are connected to upper and lower edge portions of the four side surface portions (1, 2, 3, 4), which are continuously provided with the folding ruled line (Lv) in between, with the folding ruled line (Lh) in between. The sheet (S) is formed into a cylindrical body by adhering a glue margin surface portion (5) provided at one side end of the four side surface portions (1, 2, 3, 4) to the other side end. In a packaging case that is assembled into a hexahedron by folding the upper and lower lids (6, 6) on the upper and lower openings of the body,
The upper and lower lid parts (6, 6) are a pair of inner flaps (7, 7);
An outer lid (8) having a tongue-shaped insertion piece (8a) with a root portion constricted at a narrow width and a fan-shaped tip end side provided at the tip;
The incision part (9a) into which the insertion piece (8a) is engaged consists of an inner lid (9) formed in the lid surface,
The cut portion (9a) has a length that allows the insertion piece (8a) to be inserted as a whole, and a length portion through which the root portion of the insertion piece (8a) at the center portion (9a1) is inserted. Is bent into a bow shape or a square shape from the folding ruled line (Lh) side toward the distal end side of the inner lid (9), and both sides (9a2, 9a2) are the ends of the bent or bent portions. Is bent to the distal end side of the inner lid (9) from the portion and formed into a shape extending obliquely linearly,
The inner lid (9) and the outer lid (8) are folded on the inner flaps (7, 7) folded in the opening surface of the cylindrical body, and the insertion piece (8a) of the outer lid (8) is folded on the inner lid (9). The insertion piece (8a) into which the base portion of the inserted piece (8a) is bent or bent along the notch (9a) and enters the lower side of the inner lid (9). The wide tongue-shaped portion of) is held in a curved or bent shape, and the tongue-shaped portion engages with the lower surface of the inner lid (9) and the inner flaps (7, 7), thereby closing the opening. A packaging case characterized by having a configuration provided as described above .   The packaging case according to claim 1, wherein the cut portion (9a) is provided in a long hole shape. A plurality of insertion pieces (8a) are provided at the tip of the outer lid (8), and a plurality of cut portions (9a) into which the insertion pieces (8a) are engaged are provided in the lid surface of the inner lid (9). The packaging case according to claim 1 or 2.

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