JP2011195184A - Packaging case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging case, an insertion port of which an insertion piece of a lid flap piece can be inserted into a slot comparatively easily.SOLUTION: The packaging case includes a case body 2 having a front sheet piece 3 and a back sheet piece 4, a commodity taking in and out port 21, a lid flap piece 5, which is extended from a first side 31 of the front sheet piece 3 and closes the commodity taking in and out port 21, the insertion piece 6 provided to the end part of the lid flap piece 5 and the insertion port 7 which is formed within the face of the back sheet piece 4 and is shorter than the breadth of the insertion piece 6, wherein a first folding ruled line 91 is formed along the first side 31 of the front sheet piece 3 and a second folding ruled line 92 is formed along the boundary between the lid flap piece 5 and the insertion piece 6 and a third folding ruled line 93 is formed within the face of the lid flap piece 5 and between the first folding ruled line 91 and the second folding ruled line 92.

Description

  The present invention relates to a packaging case in which a lid flap piece is difficult to release.

Conventionally, various forms have been known for packaging cases formed by assembling sheet materials such as synthetic resin sheets.
A packaging case formed of a sheet material is usually configured such that a lid flap piece is locked to the case main body so that the entrance / exit of the case main body is closed by the lid flap piece. Further, a packaging case having a structure in which the locking of the lid flap piece is difficult to be released from the case body is also known.
For example, as shown in FIGS. 15 and 16, the packaging case 100 includes a case main body 200 having a top sheet piece 300 and a back sheet piece 400, and a lower end side of the top sheet piece 300 and the back sheet piece 400. The product entry / exit opening 210 provided on the top side, the lid flap piece 500 extending from the lower end side of the top sheet piece 300, the insertion piece 600 provided at the end of the lid flap piece 500, and the back sheet piece 400 And an insertion port 700 formed in the plane and having a lateral width shorter than the lateral width of the insertion piece 600.

The left and right end sides and the upper end sides of the top sheet piece 300 and the back sheet piece 400 are connected in series. Accordingly, the case main body 200 has a three-side sealed flat shape in which a product inlet / outlet 210 is formed at the lower end thereof (that is, in a state where no product is stored, the top sheet piece 300 and the back sheet piece). 400 inner surfaces are in contact with each other).
Further, a crease line 910 is formed along the lower end side of the top sheet piece 200. The lid flap piece 500 is bent at the crease line 910 and the insertion piece 600 is inserted into the insertion port 700, whereby the lid flap piece 500 is locked to the case body 200.

In the packaging case 100, since the lateral width of the insertion piece 600 is longer than the lateral width (opening width) of the insertion opening 700, the insertion piece 600 once inserted into the insertion opening 700 cannot be easily removed. Therefore, there is an advantage that the locking of the lid flap piece 500 is difficult to release.
However, since the lateral width of the insertion piece 600 is longer than the lateral width of the insertion opening 700, there is a problem that it is difficult to insert the insertion piece 600 into the insertion opening 700. In other words, the insertion piece 600 having a long width is difficult to come out after being inserted into the insertion port 700, but the insertion piece 600 is difficult to insert there. In particular, when the case main body 200 is flat, since there is only a slight gap between the inner surface of the top sheet piece 300 and the inner surface of the back sheet piece 400, the insertion work of the insertion piece 600 becomes more troublesome.
In this type of packaging case, the insertion work of the insertion piece is often performed manually, but if it is not a dexterous worker, a relatively long work time is required, or the insertion piece and the lid flap piece are unnecessary. It will be bent to.

  An object of the present invention is to provide a packaging case in which an insertion piece of a lid flap piece can be relatively easily inserted into an insertion port to complete the closure of the lid flap piece.

  The packaging case of the present invention includes a case main body having a top sheet piece and a back sheet piece, a commodity entrance provided on a first end side of the top sheet piece and the back sheet piece, and the top sheet piece. A lid flap piece extending from the first end and closing the commodity outlet, an insertion piece provided at an end of the lid flap piece, and the insertion piece formed in the surface of the back sheet piece A insertion case having a width that is shorter than the width of the top sheet sheet, wherein a first crease line is formed along a first end side of the surface sheet piece, and a boundary between the lid flap piece and the insertion piece A second crease line that is substantially parallel to the first crease line is formed along the first and second crease lines in the plane of the lid flap piece and between the first crease line and the second crease line. And a third crease line that is substantially parallel to the line is formed.

  In a preferred aspect of the present invention, the second end side of the top sheet piece and the second end side of the back sheet piece are connected in series, and the third end side of the top sheet piece facing the second end side, respectively. And the third end side of the back sheet piece are connected to each other, and the inner surfaces of the top sheet piece and the back sheet piece are in contact with each other in a state in which no product is stored in the case body.

In the packaging case of the present invention, the insertion piece can be inserted into the insertion port relatively easily.
Therefore, the insertion work of the insertion piece can be shortened, and the bending of the insertion piece and the lid flap piece can be prevented, and the product defect occurrence rate due to the insertion work can be suppressed.

The front view of the packaging case which concerns on one embodiment of this invention. The rear view of the packaging case. The right view of the packaging case. The principal part enlarged view of FIG. The front view of the packaging case in the state where the lid flap piece was removed. The expanded view of the sheet material which forms the packaging case. In this development view, all folding ruled lines are represented by dotted lines. The perspective view which shows the initial stage process of the insertion operation | work of an insertion piece, Comprising: The state which inserted the front-end | tip of an insertion piece in the insertion port. VIII-VIII sectional view taken on the line of FIG. The perspective view which shows the intermediate process of the insertion operation | work of an insertion piece, Comprising: The state which made the insertion piece stand up. XX sectional drawing of FIG. The partially omitted front view of the packaging case according to another embodiment of the present invention. The rear view of the packaging case which concerns on other embodiment of this invention. Same side view The bottom view. The front view of the conventional packaging case. FIG.

  Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings. In addition, there are cases where the first, second, etc. are added as prefixes for the terms of each part, but these prefixes are added to distinguish the terms and do not mean the order or superiority of each part. .

1 to 5, reference numeral 1 denotes a packaging case formed by assembling sheet materials.
FIG. 6 is a development view of the sheet material forming the packaging case 1. In the development view of FIG. 6, the same reference numerals are given to the portions corresponding to the respective parts of the packaging case 1.
The packaging case 1 includes a case main body 2 having an insertion port 7 and a product inlet / outlet opening on one side, a lid flap piece 5 for opening / closing the product inlet / outlet, and an end portion of the lid flap piece 5 And the insertion piece 6 provided in the.
A suspension hole 22 is formed in the central portion on the other side of the case body 2. In the present embodiment, terms indicating the directions of up, down, left, and right are sometimes used on the basis of the state where the hole for suspension is on the upper side.

The case body 2 includes a top sheet piece 3 and a back sheet piece 4. A product (not shown) can be stored in the case body 2 through the product entrance. The top sheet piece 3 and the back sheet piece 4 are each formed, for example, in a square shape (preferably a rectangle or a square) in plan view. In this specification, the planar view shape means a shape when viewed from the normal direction of the object.
The first end side 31 (lower end side) of the top sheet piece 3 and the first end side 41 (lower end side) of the back sheet piece 4 are not connected to each other, and goods are put in and out of the first end side 31, 41 side. The mouth is open. On the other hand, the second end side 32 (right end side) of the top sheet piece 3 and the second end side 42 (right end side) of the back sheet piece 4 are connected, and the third end side 33 (left end side) of the top sheet piece 3 is provided. The side facing the second end side 32 of the top sheet piece 3 and the third end side 43 of the back sheet piece 4 (the left end side; the side facing the second end side 42 of the back sheet piece 4) are connected. ing. Further, the fourth end side 34 (upper end side; the side facing the first end side 31 of the front sheet piece 3) of the top sheet piece 3 and the fourth end side 44 (upper end side. The back sheet piece 4 of the back sheet piece 4. The side opposite to the first end side 41 is connected. In each of these continuous portions, both sheet pieces 3 and 4 are bent so that the inner surfaces of the top sheet piece 3 and the back sheet piece 4 are in contact with each other.
In this embodiment, the margin portions 23 and 23 extending from the second end side 32 and the third end side 33 of the top sheet piece 3 are bent, respectively. 4, the second end side 32 of the top sheet piece 3 and the second end side 42 of the back sheet piece 4 are connected to each other, and the third end side 33 of the top sheet piece 3 is bonded. And the third end side 43 of the back sheet piece 4 is provided continuously.

  Accordingly, the inner surface of the top sheet piece 3 and the inner surface of the back sheet piece 4 are in contact with each other in a state where no product is stored in the case body 2. The term “contact” includes not only a case where a part or the whole of the inner surface is in contact, but also a state where a slight gap is provided between the inner surfaces.

  A window portion 35 is formed in the surface of the top sheet piece 3. The window 35 is fitted with a storage cover 8 that stores or holds the product therein. The storage cover 8 includes a convex main body portion 81 that can protrude from the window portion 35, and an annular flange portion 82 that extends outward from the periphery of the base portion of the main body portion 81. When the storage cover 8 is inserted into the inner surface side of the surface sheet piece 3 and the main body portion 81 is taken out from the window portion 35, the collar portion 82 is locked to the inner surface of the surface sheet piece 3 around the window portion 35. In this way, the storage cover 8 can be fitted into the window portion 35 of the top sheet piece 3. The storage cover 8 locked in this manner cannot be removed from the outside, and is taken in and out from the product outlet.

In the illustrated packaging case 1, a separate storage cover 8 is added to the case body 2 to store the product, but the product is stored directly in the case body 2 without using the storage cover 8. Also good. Thus, when goods are directly stored in the case main body 2 (between the top sheet piece 3 and the back sheet piece 4), the window portion 35 as described above is usually not formed.
In addition, for example, the storage recess for storing the product may be formed in a part of the top sheet piece 3 by previously thermoforming the top sheet piece 3 and inflating a part thereof in a convex shape. Even when the storage recess is formed directly on the sheet piece as described above, it is not necessary to provide the storage cover 8 or the window 35.

An insertion port 7 is formed in the surface of the back sheet piece 4.
The lateral width 7W of the insertion slot 7 (the maximum width of the insertion slot 7 in the direction parallel to the first end 31 of the surface sheet piece 3) is 6W of the insertion piece 6 (parallel to the first end 31 of the surface sheet piece 3). Shorter than the maximum width of the insertion piece 6 in any direction (see FIG. 6).

Specifically, the insertion port 7 is composed of, for example, an end-shaped cut line formed in the back sheet piece 4. This incision line has a linear center incision 71 extending in a direction substantially parallel to the first end 31 of the surface sheet piece 3, and a pair of left and right curved incisions 72, 72 that bend in a hairpin shape from both ends of the center incision 71. And is composed of.
The length between the outer ends (inflection points) of the left curved cuts 72, 72 and the outer ends (inflection points) of the right curved cuts 72, 72 corresponds to the lateral width 7W of the insertion port 7.

The incision line (insertion port 7) is not limited to the case where the center incision 71 and the curved incisions 72 and 72 are configured, and may be composed only of the center incision 71 (not shown). Further, the central cut 71 is not limited to a linear shape, and may be formed in a mountain shape, an arc shape, a saw blade shape, or the like (not shown).
Furthermore, instead of the cut line, a slit opening (not shown) obtained by punching out the surface of the back sheet piece 4 may be applied as the insertion port 7.

Next, the lid flap piece 5 is extended from the first end side 31 of the top sheet piece 3. The width of the base portion of the lid flap piece 5 is usually substantially the same width as the first end side 31 of the top sheet piece 3 or shorter than the first end side 31.
An insertion piece 6 is integrally extended at the end of the lid flap piece 5.

A first crease line 91 is formed along the first end side 31 of the top sheet piece 3 (the boundary between the lid flap piece 5 and the top sheet piece 3). Preferably, the first crease line 91 is formed in a straight line shape. The product entrance is closed by the lid flap piece 5 by bending the lid flap piece 5 to the outer surface side of the back sheet piece 4 at the first crease line 91.
Furthermore, a second crease line 92 is formed along the boundary between the lid flap piece 5 and the insertion piece 6. Further, a third crease line 93 is formed in a region between the first crease line 91 and the second crease line 92 within the surface of the lid flap piece 5. The second crease line 92 and the third crease line 93 each extend substantially parallel to the first crease line 91 and are preferably formed in a straight line.

The formation position of the 3rd crease line 93 is not specifically limited, It sets suitably. However, if the formation position of the third crease line 93 is too close to the first crease line 91 or the second crease line 92, the first area 51 or the second area 52 becomes very narrow.
The formation position of the third crease line 93 is preferably a position where the distance A between the third crease line 93 and the first crease line 91 is 5 mm or more, and more preferably a position where the distance A is 8 mm or more.
The formation position of the third crease line 93 is preferably a position where the distance B between the third crease line 93 and the second crease line 92 is 4 to 30 mm, and more preferably the position where the distance B is 5 to 15 mm. In particular, a position where the distance B is 8 to 12 mm is preferable.

The lid flap piece 5 includes a first area 51 provided continuously with the first end 31 of the top sheet piece 3 and a second area 52 extending integrally from the first area 51.
In the lid flap piece 5 of the illustrated example, the first region 51 is formed in a substantially trapezoidal shape in plan view, which is gradually narrowed from a base portion slightly narrower than the first end 31 of the top sheet piece 3. The second region 52 is formed in an elongated and substantially rectangular shape integrally extending from the upper base of the trapezoidal first region 51.

  The third crease line 93 is formed along the boundary between the first region 51 and the second region 52. If necessary, cuts may be formed at both ends of the third crease line 93. Specifically, as shown in the figure, on the boundary between the first region 51 and the second region 52, a pair of cuts 3C, 3C are formed in the central direction from the left and right edges of the first region 51 (or the second region 52). A third crease line 93 is formed between the pair of cuts 3C, 3C.

The insertion piece 6 extends from the end of the second region 52 of the lid flap piece 5 (in the illustrated example in which the second region 52 is formed in a substantially rectangular shape, one long side of the second region 52). ing.
The insertion piece 6 has a width that is longer than the width of the insertion port 7. The difference between the width 6W of the insertion piece 6 and the width 7W of the insertion port 7 is not particularly limited, but if the difference between the two is too large, the insertion piece 6 cannot be physically inserted into the insertion port 7, while If the difference is small, the inserted piece 6 is easily removed from the insertion port 7. Considering such points, the difference between the lateral width 6W of the insertion piece 6 and the lateral width 7W of the insertion port 7 is preferably 1 mm to 8 mm, and more preferably 2 mm to 6 mm.

  The plan view shape of the insertion piece 6 is not particularly limited, and can be formed in a quadrangular shape, a semicircular shape, a trapezoidal shape, a triangular shape, or the like. Preferably, a shape formed narrower toward the tip side (for example, a trapezoidal shape as shown, a triangular shape, a semicircular shape, etc.) is preferable.

  The second crease line 92 is formed along the boundary of the second region 52 of the insertion piece 6 and the lid flap piece 5. If necessary, cuts may be formed at both end portions of the second crease line 92. Specifically, as illustrated, on the boundary between the insertion piece 6 and the second region 52, a pair of cuts 2C and 2C are formed in the central direction from the left and right edges of the insertion piece 6 (or the second region 52). A second crease line 92 is formed between the pair of cuts 2C and 2C.

Preferably, the pair of cuts 2C and 2C are formed in a non-linear shape. Specifically, the pair of cuts 2C and 2C extend from the left and right end edges to the central direction of the first cut 2C ′ and from the end of the first cut 2C ′ to the center of the tip of the insertion piece 6. The pair of cuts 2C, 2C may be entirely formed in a straight line (on the extended line of the second crease line 92).
Since the non-linear cut 2C is formed, a pair of left and right extending portions 61, 61 extending from the second folding ruled line 92 to the lid flap piece 5 side are provided at both ends of the insertion piece 6. It is formed. The length between the outer end of the left extension 61 and the outer end of the right extension 61 corresponds to the lateral width 6W of the insertion piece 6.

When the insertion piece 6 is inserted into the insertion port 7, as shown in FIG. 4, the second crease line 92 enters the inner surface side of the back sheet piece 4, and the outside of both extension portions 61, 61 of the insertion piece 6. The ends are located outside the curved cuts 72, 72, and the extending portions 61, 61 of the insertion piece 6 intersect the curved cuts 72, 72 (the first cut 2C ′ intersects the curved cuts 72, 72. ).
Accordingly, the inserted piece 6 cannot be easily removed from the insertion port 7. In particular, according to the insertion piece 6 having both the extending portions 61, 61, it is possible to effectively prevent the insertion piece 7 from coming out.

  In addition, a fourth crease line 94 extending in a direction substantially orthogonal to the second crease line 92 is formed in the surface of the insertion piece 6, and preferably, the fourth crease line 94 is separated by two at a predetermined interval. It is formed. In the present embodiment, two second lines are arranged in a direction substantially perpendicular to the second crease line 92 within the plane of the insertion piece 6 from the ends of the cuts 2C and 2C toward the distal end side of the insertion piece 6. Four-fold ruled lines 94 and 94 are formed. By providing the fourth crease line 94, when the insertion piece 6 is inserted into the insertion port 7, the insertion piece 6 can be bent and curved at the fourth crease line 94. Since the curved insertion piece 6 has a short horizontal width, the insertion piece 6 can be more easily inserted into the insertion port 7.

  The sheet | seat material which forms the packaging case 1 is not specifically limited, A conventionally well-known sheet | seat can be used. Examples of the sheet material include a synthetic resin sheet, a synthetic resin sheet having a metal vapor-deposited layer, cardboard, and a laminated sheet thereof. Preferably, a sheet including a synthetic resin sheet is used, and more preferably, a synthetic resin sheet (including a resin sheet in which two or more synthetic resin sheets are laminated) is used. Examples of the material of the synthetic resin sheet include polyolefins such as polypropylene and polyethylene, polyesters such as polyethylene terephthalate, polystyrenes, and polyamides. In particular, since it is excellent in bending resistance (hinge characteristics), a polypropylene sheet or a resin sheet in which polypropylene sheets are laminated is preferable. The sheet material is preferably colorless, but may be colored as long as the transparency is not impaired. In addition, a design may be printed on the sheet material as needed, or a label on which the design is printed may be attached. The thickness of the sheet material is not particularly limited, but is preferably about 0.2 mm to 1.0 mm. When a polypropylene sheet is used, the sheet material preferably has a thickness of 0.2 mm to 0.6 mm because it has appropriate rigidity.

The packaging case 1 having the above configuration is used as follows.
The storage cover 8 containing the product is inserted from the product entry / exit opening and fitted into the window 35.
Next, the lid flap piece 5 is bent with respect to the top sheet piece 3 at the first crease line 91, and further, the lid flap piece 5 is bent at approximately 90 degrees at the third crease line 93 and inserted at the second crease line 92. 6 is bent at an obtuse angle with respect to the lid flap piece 5.
Then, as shown in FIGS. 7 and 8, the tip of the insertion piece 6 is inserted into the insertion port 7.

Next, the first region 51 of the lid flap piece 5 (the region between the first crease line 91 and the third crease line 93) is pushed into the back sheet piece 4 side with a finger.
9 and 10, the first area 51 comes into contact with the outer surface of the back sheet piece 4, and at the same time, the second area 52 (the third folding ruled line 93 and the second folded line 93) of the lid flap piece 5 is pressed. The area between the ruled lines 92 rises substantially perpendicular to the back sheet piece 4, and the insertion piece 6 whose tip is inserted into the insertion port 7 is formed with respect to the inner surface of the second area 52 and the back sheet piece 4. And stand up sharply.
When the outer surface of the raised second region 52 is pushed in the direction of the insertion slot, the insertion piece 6 is easily inserted into the insertion slot 7. At this time, since the insertion piece 6 is slightly curved at the fourth crease line 94, the insertion piece 6 can be particularly easily inserted. Thus, the packaging case 1 as shown in FIGS. 1-4 is obtained.
According to the present invention, the insertion piece 6 can be inserted into the insertion port 7 relatively easily. Therefore, the insertion work of the insertion piece 6 can be shortened, and the product defect occurrence rate due to the bending of the insertion piece 6 and the lid flap piece 5 can be reduced.

  In particular, when the case body 2 is flat, it is difficult to insert the insertion piece 6 into the insertion port 7. However, according to the present invention, the insertion piece 6 can be easily inserted even in such a flat case body 2. be able to.

In addition, this invention is not restricted to the packaging case 1 shown in the said embodiment, A design change can be suitably carried out in the range which this invention intends. Hereinafter, although other embodiment of this invention is described, about the structure similar to the said embodiment, the description is abbreviate | omitted and a term and a code | symbol are used.
In the above embodiment, the fourth crease line 94 is provided on the insertion piece 6, but the insertion piece 6 without the fourth crease line 94 may be used.
In the above-described embodiment, the cut 2C includes the first cut 2C ′ extending linearly and the second cut 2C ″ extending in an inclined manner. For example, as shown in FIG. It may extend in a direction substantially perpendicular to the second crease line 92. Although not particularly illustrated, the entire cut 2C may be formed in a straight line (on the extended line of the second crease line 92).
In the embodiment described above, the cut 2C and the cut 3C are provided, but the cut 2C and / or the cut 3C may not be provided.

Moreover, in the said embodiment, the case main body 2 has the surface sheet piece 3 and the back surface sheet piece 4, and is a substantially flat shape in the state which has not accommodated goods, However, The case main body 2 is restricted to a substantially flat shape. I can't. For example, as shown in FIGS. 12 to 14, the case main body 2 may include a top sheet piece 3, a back sheet piece 4, and a bottom sheet piece 11.
In this other embodiment, the second end side 32 of the top sheet piece 3 and the second end side 42 of the back sheet piece 4 are connected, and the third end side 33 of the top sheet piece 3 and the back sheet piece 4. The third end side 43 is continuously provided, and the first end side 31 of the top sheet piece 3, the first end side 41 of the back sheet piece 4, the fourth end side 34 of the top sheet piece 3, and the back side sheet piece 4. The four end sides 44 are not continuously provided. Between the fourth end side 34 of the top sheet piece 3 and the fourth end side 44 of the back sheet piece 4, both sides of the bottom sheet piece 11 are connected in series. The bottom sheet piece 11 has a substantially spindle shape in a bottom view, and is interposed between the sheet pieces 3 and 4 so as to be substantially orthogonal to the inner surfaces of the top sheet piece 3 and the back sheet piece 4.
And the cover flap piece 5 is extended from the 1st end side 31 of the surface sheet piece 3 similarly to the said embodiment, The 1st crease line 91 is formed along this 1st end side 31. As shown in FIG. . A similar insertion piece 6 is provided in the lid flap piece 5, and a second crease line 92 is formed along the boundary between the lid flap piece 5 and the insertion piece 6. In addition, a third crease line 93 is formed in a region between the first crease line 91 and the second crease line 92.

  The packaging case of the present invention can be used for applications in which various products are stored and displayed.

  DESCRIPTION OF SYMBOLS 1 ... Packaging case, 2 ... Case main body, 3 ... Surface sheet piece, 31-34 ... The 1st-4th edge of a surface sheet piece, 4 ... Back surface sheet piece, 41-44 ... 1st-1st of a back surface sheet piece 4 edges, 5 ... lid flap piece, 6 ... insertion piece, 6W ... lateral width of insertion piece, 7 ... insertion slot, 7W ... lateral width of insertion slot, 91 ... first crease line, 92 ... second crease line, 93 ... 3rd crease line

Claims (2)

A case main body having a top sheet piece and a back sheet piece, a commodity outlet provided on the first end side of the top sheet piece and the back sheet piece, and extending from the first end side of the top sheet piece A lid flap piece that closes the product outlet, an insertion piece provided at an end of the lid flap piece, and a lateral width that is formed in the surface of the back sheet piece and is shorter than the lateral width of the insertion piece. A packaging case comprising an insertion port,
A first crease line is formed along the first edge of the surface sheet piece,
A second crease line substantially parallel to the first crease line is formed along a boundary between the lid flap piece and the insertion piece,
A packaging case, wherein a third crease line substantially parallel to the first crease line is formed between the first crease line and the second crease line within the surface of the lid flap piece.   The second end side of the top sheet piece and the second end side of the back sheet piece are connected in series, and the third end side of the top sheet piece and the third of the back sheet piece respectively facing the second end sides. The packaging case according to claim 1, wherein an end side is continuously provided, and inner surfaces of the top sheet piece and the back sheet piece are in contact with each other in a state in which no product is stored in the case body.

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