JPH066034Y2 - Packaging bag - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a packaging bag, more specifically, not only a thick packaging object but also a thin packaging object such as a writing instrument or a thin sheet packaging object. The present invention relates to a packaging bag that can also suitably store things and the like.

(Prior Art) Conventionally, as a packaging bag of this type, for example, SAIkai 59-1
There are those listed in the 88850 publication. In the packaging bag disclosed in this publication, as shown in FIG. 4, a bag body 1a is composed of one piece 2a made of a film and another piece 3a made of a thick sheet material, and the lower edge 6a of the bag body 1 is folded back. And forming a substantially W-shaped gusset on the bottom 18 and extending the upper edge 14a of one piece 2a and folding back to the other piece 3a to form a sealing piece 20 for opening and closing the opening 19. is there.

Since this packaging bag has a gusset formed on the bottom portion 18, when a thick product is stored, the bag body
The bottom portion 6a of the 1a expands, and the bag body 1a becomes independent.

(Problems to be solved by the invention) However, since the packaging bag as described above has a gusset formed on the bottom portion 18 in the first place on the assumption of packaging a thick object to be packaged, for example, a writing instrument or the like having an elongated shape. If you want to store items to be wrapped or thin sheet-like items,
There is a problem that the gusset does not function, and conversely, the preformed gusset becomes an obstacle, and the object to be packaged cannot be inserted to the innermost portion of the bottom of the bag body.

That is, in the case of the above packaging bag, the opening portion 19 has the bag body 1a.
Since it is located at the upper part of the bag, the opening 19 to the bottom 18 of the bag body 1a having the gusset has a certain length corresponding to the size of the bag body 1a. Therefore, when the object to be packaged 15 is thin, the object to be packaged 15 hits the mountain portion 18a of the gusset as shown in FIG. 5, and moreover, the bag body 1a has a constant opening 19 to the bottom 6a. Due to the distance, it is difficult to store the article to be packaged 15 while adjusting so as not to hit the mountain portion 18a of the gusset as described above, and it is difficult to store it in the bottom portion 6a of the bag body 1a. It was.

Further, since there is a constant dimension from the opening 19 of the bag body 1a to the bottom portion 6a as described above, when the writing instrument or the like is inserted into the bag body 1a, the sharp tip of the writing instrument is carelessly formed into a film. There was a risk of being pierced and damaging the bag body 1a.

The present invention has been made in order to solve all the problems described above, and utilizes the advantage of the conventional packaging bag that a thick object to be packaged can be packaged in an independent state. A slender or sheet-like object to be packaged can be packaged according to the form of the object to be packaged without impairing the appearance, and the object to be packaged can be stored easily and smoothly. The challenge is to provide.

(Means for Solving the Problem) The present invention has been made as a solution to such a problem. The means for solving the problem is that one piece 2 of the bag body 1 is made of a synthetic resin film. As well as
In a packaging bag in which the other piece (3) is made of a sheet material thicker than the film and the opening (16) is formed in the lower part of the bag body (1), the lower edge of the one piece (2) of the bag body is directed upward and the opening (16).
And fold back downward from the top of the upward folding piece 8 to form at least a substantially N-shaped gusset on the bottom portion 5 of the bag body 1, and the downward folding piece 22 includes the opening portion 16. Is formed as a sealing piece 9 extending downward to open and close the opening 16, and the upward folding piece 8 is heat-welded together with both side edges of both pieces of the bag body 1 to form one piece 2 of the bag body 1. The pocket chamber 7 is formed between the folding piece 8 and the folding piece 8.

(Operation) That is, because of the above-mentioned configuration, the article to be packaged is very smoothly and easily accommodated in the bag body 1 through the opening 16 while being guided by the sealing piece 9.

Moreover, when the packaged object to be stored is an elongated or sheet-shaped one, the tip of the packaged object can be promptly inserted into the pocket chamber 7 after being stored in the bag body 1. Therefore, the object to be packaged is sandwiched between one piece 2 of the bag body 1 forming the pocket chamber 7 and the upward folding piece 8 and is reliably positioned in the bag body 1 without dropping from the bag body 1, In that state, when the sealing piece 9 is folded back to the other piece 3 side and the opening 16 is sealed, the packaged object is in close contact with both films forming the pocket chamber 7, and the appearance according to the form of the packaged object. It will be packaged while maintaining its appearance.

On the other hand, in the case of storing a thick object to be packaged, the bottom portion 4 of the bag body 1 has a gusset function and spreads due to the weight of the object to be packaged, which enables packaging in accordance with the form of the object to be packaged. .

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a bag body composed of one piece 2 made of a synthetic resin film and another piece 3 made of synthetic paper thicker than the film, which are sealed by heat-sealing at both side edges 4 and 4. An opening 16 is formed at the bottom of the bag body 1, and the lower edge 6 of the piece 2 of the bag body 1 is folded back upward, and the upward folding piece 8 is exposed above the opening 16. At the same time, both side edges of the folded piece 8 are heat-welded together with both side edges 4 and 4 of the bag body 1 to form a pocket chamber 7.

Reference numeral 9 denotes a sealing piece that can open and close the opening 16 of the bag body 1. The lower edge of the piece 2 of the bag body 1 forming the pocket chamber 7 is folded back downward from the top of the upward folding piece 8. The downward folding piece 22 thus formed is formed so as to extend below the opening 16. The downward-turning-back piece 22 is also heat-welded together with both side edges 4 and 4 of both pieces of the bag body 1.

By forming the pocket chamber 7 and the sealing piece 9 as described above, a gusset having a substantially N-shaped cross section is formed on the bottom portion 5 of the bag body 1.

Reference numeral 10 denotes an adhesive applied to the lower portion 11 of the inner surface of the sealing piece 9, and a release paper 12 is attached to the surface thereof. Reference numeral 21 denotes a header portion formed on the upper portion of the bag body 1 via a partition seal portion 13 formed by heat-sealing the two pieces 2 and 3 of the bag body 1 in the lateral direction, and the upper edge of the piece 2 14 is folded back to the side of the other piece 3 and the lower edge of the folded piece is heat-welded in the lateral direction of the other piece 3.

Next, the case of using the packaging bag having the above configuration will be described.

First, as shown in FIG. 2, a writing instrument 15 as an article to be packaged.
Is inserted into the bag body 1 through the opening 16 so that its tip 17 faces downward.

At this time, at the bottom of the bag body 1, the sealing piece 9 is formed so as to extend to the lower side of the opening 16, so that the object to be packaged is
15 is easily and smoothly inserted into the bag body 1 while being guided by the sealing piece 9.

At this time, after the entire writing instrument 15 is inserted into the bag body 1, the sharp tip 17 of the writing instrument 15 is inserted into the pocket chamber 7 formed in the bottom portion 5 of the bag body 1 for storage.

In this case, since the opening 16 is formed in the bottom of the bag body 1 and the pocket chamber 7 is located near the bottom, the tip 17 of the writing instrument 15 can be easily inserted into the pocket chamber 7. Becomes

The tip 17 of the writing instrument 15 is inserted into the pocket chamber 7 so that the writing instrument 15 does not drop from the bag body 1 and is sandwiched between both films forming the pocket chamber 7 in the bag body 1. Sealing piece 9 to fit inside
The writing instrument 15 will not drop even if the writing instrument 15 is opened carelessly.

Further, the writing instrument 15 can be stored in the bag body 1 in a stable state, and the sealing piece 9 does not become an obstacle when the sealing piece 9 is folded back to the other piece 3 side.

Further, since the sealing piece 9 does not directly receive the weight of the writing instrument 15, the sealing piece 9 does not open carelessly.

After the writing instrument 15 is stored in the bag body 1, the sealing piece 9
Back to the other piece 3 side, and the adhesive 10 applied to the inner surface
Then, it is attached to the other piece 3.

On the other hand, in the case of packaging a thick object to be packaged, as shown in FIG. 3, the folded film of the bottom portion 5 functions as a gusset due to the weight of the object to be packaged, and the bottom portion 5 of the object to be packaged.
Is expanded and the packaging bag becomes independent.

Thus, in this embodiment, regardless of the thickness of the packaged object,
Thus, it is possible to provide a packaging bag capable of suitably packaging an article to be packaged.

In the above embodiment, the adhesive is provided on the inner surface side of the sealing piece 9, but the adhesive is not limited to this and may be provided on the outer surface side of the bag body 1.

Also, an adhesive tape may be used instead of the adhesive.

Further, the structure of the upper part of the packaging bag is not limited to the one in which the upper edge of one piece of the bag body 1 is extended and folded back to the other side to be line-sealed over the entire width, as in the above-described embodiment. The upper edge may be sealed, or a hanging hole may be formed in the header portion for both self-sustaining and hanging purposes.

Further, the sheet material thicker than the film constituting the other piece of the bag body is not limited to the synthetic paper as in the example, but may be a thick paper coated with a synthetic resin film or a thick paper laminated with a film. It may be present, as long as it can be heat-fused and sealed with the film.

Further, the form of the bottom portion 5 of the bag body 1 is not limited to the form of the substantially N-shape in which the lower end of the piece 2 of the bag body 1 is folded upward and downward once, as in the above-described embodiment.
For example, it may be folded up and down twice each.

(Effect of the Invention) As described above, according to the present invention, the lower edge of one piece of the bag body is folded back upward and above the opening, and is further folded downward from the top of the folded back piece at least approximately N-shaped. -Shaped gusset is formed at the bottom of the bag body, and the downward folding piece is extended below the opening to form a sealing piece that opens and closes the opening, and the upward folding piece is formed into the bag body. Since both sides of both pieces are heat-welded together to form a pocket chamber between the one piece of the bag body and the folded piece, an elongated object to be wrapped such as a writing instrument or a sheet object to be wrapped is formed. In the case of storing, the object to be packaged is stored from the opening, and the object to be packaged is inserted into the pocket chamber, so that the object to be packaged is packaged according to the shape of the elongated or thin object to be packaged. It can be carried out.

On the other hand, in the case of packaging a thick packaged object, the bottom of the bag body exhibits a gusset function and spreads due to the self-weight of the packaged object, so that the packaging can be performed according to the form of the packaged object.

In this way, the above-mentioned pocket chamber functions for elongated or thin packaged objects, and for thick packaged objects, the bottom of the bag body functions as a gusset, whichever case is packaged. It is possible to wrap according to the form,
It is possible to provide an epoch-making packaging bag that can be smoothly packaged without any trouble.

Further, since the opening is formed in the bottom of the bag body and the pocket chamber is formed in the vicinity thereof, the opening is not separated from the bottom of the bag body unlike the conventional upper opening type packaging bag. Therefore, unlike the conventional packaging bag, the gusset does not hinder the storage of objects to be packaged.

Furthermore, since the above-mentioned sealing piece is formed by extending the downwardly-turned back piece as it is to the lower side of the opening, the object to be packaged is easily and smoothly stored from the opening while being guided by the sealing piece. It will be.

Furthermore, once the packaged item is stored in the bag body,
Since it fits inside the bag body while being inserted into the pocket room and sandwiched between one piece of the bag body forming the pocket room and the upward folding piece, the bag body is reliably positioned inside the bag body. Even if the sealing piece is inadvertently opened, the packaged object does not drop.

[Brief description of drawings]

FIG. 1 shows a packaging bag as one embodiment, (a) is a front view, and (b) is a sectional view taken along the line AA of (a). 2 and 3 are cross-sectional views showing a usage state. FIG. 4 is a sectional view of a conventional packaging bag. FIG. 5 is an enlarged sectional view of a main part of a conventional packaging bag. DESCRIPTION OF SYMBOLS 1 ... Bag main body, 2 ... 1 piece 3 ... Other piece, 6 ... Lower edge 7 ... Pocket chamber, 9 ... Sealing piece 16 ... Opening part

Claims (1)

[Scope of utility model registration request] 1. One piece 2 of the bag body 1 is made of a synthetic resin film, the other piece 3 is made of a sheet material thicker than the film, and an opening 16 is formed at the bottom of the bag body 1.
In the packaging bag in which is formed, the lower edge of the piece 2 of the bag body is turned upward and folded back to the upper side of the opening 16,
The upward folding piece 8 is further folded downward to form at least a substantially N-shaped gusset in the bottom portion 5 of the bag body 1, and the downward folding piece 22 is formed in the opening portion.
The bag body is formed by forming a sealing piece 9 that extends below the opening 16 to open and close the opening 16, and further heat-welds the upward folding piece 8 together with both side edges of both pieces 2 and 3 of the bag body 1. A packaging bag, characterized in that a pocket chamber (7) is formed between the one piece (2) and the folded piece (8).