JP2012096829A - Packaging box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging box that can be opened very easily, has an easy-to-tear shrink film, and facilitates raising a product stored sideways in a cartoner up to a correct position to be set upright.SOLUTION: The packaging box is formed by bending a box forming piece formed by being integrally punched out from a sheet and including a front plate, back plate, right and left plates, and top and bottom plates. At the center outside an upper insertion piece extended at the tip of the top plate via a crease, an L-shaped recess having a substantially L-shaped cross section is formed in substantially parallel with a tip side of the upper insertion piece, while cutting out the whole or an upper part of the front plate in contact with the L-shaped recess in a closed state.

Description

  The present invention relates to a packaging box for packaging products such as cosmetics that can be easily opened even if it is an upper lid provided with a lock mechanism.

Conventionally, a packaging box for storing and packaging a product such as cosmetics is formed by bending a box-forming piece integrally punched from one sheet and extending to the tip of an upper cover plate It has a shape that is sealed by inserting the insertion piece inside the front plate, and further provided with a lock mechanism in which cuts are made on both sides of the connecting portion of the upper lid plate and the upper insertion piece. Done.
However, when opening, if you hurt your finger trying to put your finger in the gap between the upper insertion piece and the front plate, or if you press the upper insertion piece and apply force, the upper insertion piece will There is a problem in that it cannot be easily opened because the lock mechanism works more strongly when it is folded into a substantially parallel state.

On the other hand, shrink film packaging may be applied to such a packaging box, but there is a problem that the shrink film is stuck to the box and is difficult to break when opened.
Furthermore, in the case where the product stored in the packaging box is different in the vertical size, if the product is stored in a sideways packaging box with car toner, the product is stored in a fallen shape with the head down, Even after causing the packaging box to stand upright, the product remains in a tilted state, so that there is a problem in that workability is poor because it is necessary to erect it.

In order to facilitate opening, there has been a proposal to provide a pull tab for opening (see Patent Document 1 and Patent Document 2), but there is a problem that the structure becomes complicated and processing is difficult and workability is poor.
Further, in the case of Patent Document 2, since the pull tab protrudes, there is also a problem that the whole cannot be wrapped in a shrink film.

JP 2001-278249 A JP 2009-102027 A

  The present invention is a case where opening is very easy, the shrink film can be easily broken even if the shrink film packaging is applied, and the product is stored in a state where the product is tilted sideways with a car toner. It is another object of the present invention to provide a packaging box that can easily raise a product to a correct position and erect the packaging box.

The present inventor has solved the problem by providing an L-shaped recess in the outer central portion of the upper insertion piece and providing a missing portion in a portion of the front plate that contacts the L-shaped recess in the closed state. .
That is, the present invention is a packaging box composed of a front plate, a rear plate, left and right side plates, and upper and lower lid plates formed by bending a box-forming piece integrally punched from one sheet, An L-shaped recess having a substantially L-shaped cross section is provided substantially parallel to the distal end side of the upper insertion piece in the outer central portion of the upper insertion piece extending through the continuous fold at the distal end of the upper lid plate. The packaging box is formed by providing a deficient portion in a portion of the front plate that comes into contact with the L-shaped recess in the closed state.

  According to the present invention, it is very easy to open, and even if shrink film packaging is applied, the shrink film can be easily broken, and products with different top and bottom sizes can be folded sideways with a cartoner. Even when the product is stored, the product can be easily raised to the correct position to erect the packaging box, and a packaging box capable of packaging with good workability can be provided.

It is an expanded view of the blank which forms the packaging box of this invention. It is the sectional view on the AA line in FIG. It is the BB sectional view taken on the line in FIG. It is CC sectional view taken on the line in FIG. It is the DD sectional view taken on the line in FIG. It is a top perspective view which shows the state which accommodated the goods in the packaging box of this invention, and closed the lid. It is a top perspective view which shows the state which assembled the packaging box of this invention with the cartoner, and accommodated the goods sideways.

Hereinafter, the packaging box of the present invention will be described with reference to FIGS.
In FIG. 1, a blank 1 is formed by punching a synthetic resin sheet or the like, and a rectangular left side plate 12, a back plate 13 and a right side plate 14 are connected to the left side of a rectangular front plate 11. The joints 15 are sequentially provided via the eyes a1, a2, and a3, and the joining piece 15 is provided on the right side of the front plate 11 via the continuous folds a4.
In addition, the formation position of the joining piece 15 is not limited. For example, the joining piece 15 may be formed not on the side portion of the front plate 11 but on the side portion of the right side surface plate 14 to form a cylindrical body portion, and the order of connecting the plates is changed. For example, it can be configured to be formed on the side of the back plate 13 or the side of the left side plate 12.
An upper lid plate 16 and an upper insertion piece 17 are sequentially provided on the upper side of the back plate 13 via continuous folds a5 and a6, and a lower lid plate 18 and a lower difference plate are provided on the lower side of the back plate 13. The insert pieces 19 are sequentially provided via the continuous folds a7 and a8.
In the left side plate 12, an upper side flap 20 is connected to the upper side via a continuous fold a9, and a lower side flap 21 is connected to the lower side via a continuous fold a10.
In the right side plate 14, an upper side flap 22 is connected to the upper side via a continuous fold line a11, and a lower side flap 23 is connected to the lower side via a continuous fold line a12.

Lock notches 24 and 24 'are provided at both ends of the side where the upper cover plate 16 and the upper insertion piece 17 are connected, and the side of the upper side flaps 20 and 22 in the front plate direction (in the upper side flap 20 In the upper side flap 22 on the right side in FIG. 1, the base end portion (the portion close to the continuous fold a9 or a11) of the left side in FIG. The front plate 11 presses and supports the concave surface of the L-shaped concave portion 26 (described later) of the insert piece 17 so that the lock works.
Similarly, locking cuts 25 and 25 ′ are provided at both ends of the side where the lower cover plate 18 and the lower insertion piece 19 are connected, and the side of the lower side flaps 21 and 23 in the direction of the front plate (lower side flap). 21, the lower side flap 23, the lower side flap 23, the base end of the left side of FIG. 1 (portion close to the continuous fold a 10 or a 12) enters the locking cuts 25, 25 ′, The lower insertion piece 19 is supported by the front plate 11 from the outside so that the lock works.

An L-shaped recess 26 is formed at the center of the outer side of the upper insertion piece 17 (the back side in FIG. 1), and the direction defining the length L (L in FIG. 2) of the L-shaped recess 26 and the upper insertion piece 17 It is provided so that the upper side is substantially parallel.
The L-shaped recess 26 is a part for pulling up the upper insertion piece 17 and the upper cover plate 16 connected to the upper insertion piece 17 by opening a finger when opening, as shown in FIG. It is a letter shape.
In order to make it easy to lift the upper insertion piece 17 and the upper lid plate 16 upward, the L-shaped recess 26 has an L-shaped angle (α in FIG. 3) of 60 to 90 °. The angle (β in FIG. 3) formed by the surface in the distal direction of the piece 17 and the surface of the upper insertion piece 17 is 20 to 50 °, and the depth from the surface of the upper insertion piece 17 (H in FIG. 3). ) Is preferably 2 to 10 mm, and the length (L in FIG. 2) is preferably 10 to 50 mm. Furthermore, in the L-shaped recess 26, the angle (γ in FIG. 3) formed by the surface of the upper insertion piece 17 in the direction of the upper cover plate 16 and the surface of the upper insertion piece 17 is 70 to 90 °. It is more preferable from the viewpoint of making it easy to hang up with a finger.

A missing portion 27 is provided in a portion of the upper side of the front plate 11 that comes into contact with the L-shaped recess 26 in the closed state. The missing portion 27 is a portion in which the front plate 11 is cut out so as not to hinder the finger-fitting of the L-shaped recess 26 when opening, and the direction defining the length L of the L-shaped recess 26 In the central portion, it is preferable that at least half of the portion in contact with the L-shaped concave portion 26 in the direction of the continuous fold a6 is the notched defect portion 27 in which the front plate 11 does not exist.
Thus, the width of the defect portion 27 is preferably approximately the same as the length L of the L-shaped recess 26 and is 10 to 50 mm. However, in order to make the lock mechanism work, it is preferable that the upper side of the front plate 11 is 7 mm or more from the left and right ends, and a total of 14 mm or more is not a defective part.
The shape of the defect part 27 is not limited to the semicircular shape shown in the figure, and may take a shape such as a square or a combination of a semicircle and a square.

The upper side flap 22 has a length from the continuous fold line a11 substantially the same as the width of the back plate 13, and is provided with a circular convex portion 28 for supporting and securing a stored item at the center. Further, the lower side flap 23 has a length from the continuous fold line a12 substantially the same as the width of the back plate 13, and is provided with a circular convex portion 28 'for supporting and securing the stored product at the center. Is preferred.
On the other hand, the length from the continuous fold a9 of the upper side flap 20 and the length from the continuous fold a10 of the lower side flap 21 do not necessarily have to be substantially the same as the width of the back plate 13. In order to eliminate waste, it is preferable that the width of the back plate 13 is about half as shown in the figure.

The shape of the convex portion 28 and the convex portion 28 ′ is not limited to the shape shown in FIGS. 4 and 5 and may be other shapes, and the convex portion 28 and the convex portion 28 ′ may have different shapes. .
Furthermore, the shapes of the upper side flap 20 and the upper side flap 22 may be reversed, and the shapes of the lower side flap 21 and the lower side flap 23 may be reversed.

The material of the blank 1 is not particularly limited, and a synthetic resin sheet, paperboard, synthetic paper, a laminated material made of a synthetic resin sheet and paperboard, synthetic paper, or the like can be used. 1 is formed.
Among these plate materials, if the blank 1 is formed using a transparent synthetic resin sheet, the excellent appearance, pattern, color, etc. of the product can be visually recognized at the time of display. Is preferred.
The material of the synthetic resin sheet is not particularly limited, but biodegradation of thermoplastic resin, for example, polyester such as polyethylene terephthalate and polybutylene terephthalate, polyolefin such as polystyrene, polypropylene and polyethylene, polycarbonate, vinyl chloride, polyvinyl alcohol, and polylactic acid. Preferred are plastics.

The thickness of the blank 1 varies depending on the material and the like, but can be appropriately determined in consideration of ease of handling and strength. For example, in the case of a synthetic resin sheet, it is preferably 0.1 to 0.5 mm, more preferably 0.2 to 0.4 mm, and in the case of paperboard, it is preferably 0.3 to 1 mm.
When forming the L-shaped concave portion 26 and the convex portions 28 and 28 'by shaping a thermoplastic resin sheet, the thermoplastic resin sheet is heated and softened by a method such as vacuum forming, pressure forming, or press forming. Suitably thermoformed.

In order to assemble the blank 1 of FIG. 1, the blank 1 is bent inward at substantially right angles at the respective continuous folds a1, a2, a3 and a4 to form a cylindrical body, and the remaining continuous folds are formed. The upper lid plate 16, the lower lid plate 18, the upper insertion piece 17, the lower insertion piece 19, the upper side flaps 20 and 22, and the lower side flaps 21 and 23 are formed by bending the inner lid at a substantially right angle.
And the joining piece 15 provided in a row by the front board 11 is piled up on the right side board 14, and the one part or all part is joined by the well-known joining means, such as an adhesive agent, an adhesive tape, and heat sealing | fusion.

FIG. 6 is a top perspective view showing a state in which a product is stored in the packaging box 2 of the present invention and opened.
As shown in FIG. 6, the packaging box 2 of the present invention in which the blank 1 is assembled has the upper cover plate 16 and the upper insertion piece 17 connected to the upper cover plate 16, with the upper side of the back plate 13 as a support shaft. The upper insertion piece 17 enters and exits the inside of the front plate 11 and opens and closes.

As described above, the upper cover plate 16 is provided with the locking cuts 25 and 25 ′, and when the upper insertion piece 17 is inserted inside the front plate 11, both ends of the upper insertion piece 17 and the upper side The base end portions of the flaps 20 and 22 are elastically deformed and combined, and the upper lid plate 16 is locked to securely close the lid.
On the other hand, since the upper insertion piece 17 is provided with the L-shaped recess 26 and the front plate 11 is provided with the defect portion 27, the finger is inserted from the defect portion 27 and the L-shaped recess 26 is hooked with the upper insertion portion. The lid 17 can be easily opened by pulling the piece 17 upward.
At this time, as described above, when the angle γ is close to a right angle, it is possible to apply a strong force to the L-shaped concave portion 26, and the upper insertion piece 17 falls down slightly to the back side, and the lock is strongly applied. Even if it is closed, it can be easily opened without any trouble.
Even if shrink film packaging is applied, the shrink film can be easily broken by inserting a finger into the defect portion 27.

If the product to be stored in the packaging box has different top and bottom sizes, when the product is stored in a sideways packaging box with cartoner, the product is stored with the head down as shown in FIG. Is done.
However, in the case of the packaging box of the present invention, when the upper insertion piece 17 is inserted inside the front plate 11, the L-shaped convex portion inside the L-shaped concave portion 26 of the upper insertion piece 17 moves rearward of the upper part of the product. 6 to rise to the correct position, and when the packaging box is erected, the state shown in FIG. 6 is obtained.

  The packaging box of the present invention is very easy to open, and even when shrink film packaging is applied, the shrink film can be easily broken, and is further stored with the cartoner lying down sideways. However, the product can be easily raised to a correct position to erect the packaging box, and can be suitably used as a packaging box for cosmetics, makeup bases, and the like.

DESCRIPTION OF SYMBOLS 1 Blank 2 Packaging container 11 Front plate 12 Left side plate 13 Back plate 14 Right side plate 15 Joining piece 16 Upper lid plate 17 Upper insertion piece 18 Lower lid plate 19 Lower insertion piece 20, 22 Upper side flaps 21, 23 Lower side flap 24, 24 ', 25, 25' Lock cut 26 L-shaped concave portion 27 Defect portion 28, 28 'Convex portions a1 to a12 Continuous folds

Claims (3)

  A packaging box formed of a front plate, a back plate, left and right side plates, and upper and lower lid plates formed by bending a box-forming piece integrally punched from one sheet, the tip of the upper lid plate An L-shaped recess having a substantially L-shaped cross-section is provided in the outer central portion of the upper insertion piece that extends through the continuous fold line, substantially parallel to the tip side of the upper insertion piece, The packaging box which cuts out all or the upper part of the part contact | abutted to this L-shaped recessed part in a closed state.   In the L-shaped recess, the L-shaped angle is 60 to 90 °, the angle formed by the surface in the distal direction of the upper insertion piece and the surface of the upper insertion piece is 20 to 50 °, and the upper insertion piece The angle formed by the surface of the upper cover plate and the surface of the upper insertion piece is 70 to 90 °, the depth from the surface of the upper insertion piece is 2 to 10 mm, and the length is 10 to 50 mm. The packaging box according to claim 1.   The packaging according to claim 1 or 2, wherein a convex part for supporting and securing a stored product is provided on one of the two upper side flaps and one of the two lower side flaps. box.

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