JP2009126581A - Bag with gore - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a convenient synthetic resin bag such as a polyethylene bag or a vinyl bag prepared on a soccer table (a space for packing paid goods) of a supermarket for easily opening the hard-to-open mouth part of the bag by firmly sticking the front material and the back material of the mouth edge section. <P>SOLUTION: A gusset is prepared on a side edge of the bag, and a folded width of the front material and a folded width of the back material are different each other in size in order to make a separated difference produce in the bag-width direction. The front material and the back material are separated so that this section is pulled to the bag-width direction by holding the section with fingers in order to easily open the mouth section. Consequently, everybody can easily, quickly, and surely open the mouth section of the bag. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a gusseted bag in which an opening can be easily opened.

The conventional bag has a problem that the front material and the back material constituting the bag are in close contact with each other regardless of the material and without gusseted gusset, and the opening takes time.
As a device for smoothing the opening of the bag, as described in Patent Document 1, it is torn with a fingertip at a position near the mouth of the bag provided with gussets on both side edges of the two-layer synthetic resin sheet. There is a proposal to open the bag by moving the space between the two stacked sheets by pushing out the inner folding edge of the gusset by having a perforated line.
The packaging bag proposed in Patent Document 2 is mainly intended to reduce the width of the bag by forming a plurality of folds at the gusset portion of the bag. In some cases, the effect of smoothing the opening is reduced by reducing the adhesion between the front and back of the bag.
Published Patent Publication No. 2007-217057 (P2007-217057A) Utility Model Registration No. 3131845 (U3131846)

A polyethylene bag that is prepared to put food and other high-moisture items on a soccer table (accounted product packing space) in a supermarket cannot be easily opened because the mouth edge is in close contact. In order to open the bag, it is necessary to squeeze the mouth edge with a finger or the like and to release the front and back materials constituting the bag by friction. However, especially during the dry season, it is easy for the fingers to slip, which can be time consuming and frustrating. Usually, it was necessary to use some kind of tool, such as moistening a finger with a wet cloth or something with humidity, or "preventing slipping" with a material for turning. Opening bags is difficult and time consuming for those without these tools, or for the elderly, small children, and people with disabilities. Not only bags made of such materials, but also plastic bags, plastic bags, and paper bags, it takes a lot of work to open because the front and back materials that make up the bags are in close contact. Even in the case of commercial packaging, the opening of the bag is troublesome and careful. This is especially true for products that dislike humidity and articles that emphasize hygiene such as food.
The present invention has been made to eliminate the above drawbacks.

The present invention is a bag formed by having an opening (4) at the upper end of a cylindrical body and closing its bottom end (5), and a pair of gussets folded inward (6), the fold width (10) from the crease (7) of the surface material (2) to the gusset fold inner end (9) and the crease (8) of the backing (3) at the gusset portion The folding width (11) into the inner end (9) is different from the folding width (11) in the bag width direction, and the folding (13) of the backing (3) is folded into the gusset inner end (15). The width (16) and the folding width (17) from the fold line (14) of the front material (2) to the inner end (15) of the gusset fold are separated in the bag width direction with different sizes, and the separation width ( 12 and 18) occur at one of the side edges orthogonal to the bag width direction (right side Is a gusseted bag which lies in the left side).

・ Rather than rubbing the front and back materials of the bag opening (upper part of the cylindrical body) with fingers, etc., as in the past, the bag is opened by pulling the side edge of the bag in the bag width direction. Therefore, regardless of the condition of the fingers, no material for moisturizing or preventing slipping is required, and the shape is surely easy for anyone to open in a short time.
-Since the side edge of the bag is opened by pulling in the bag width direction, the front and back materials of the entire bag move and air flows in. For this reason, since the front material and the back material are separated from each other over almost the entire surface from the opening to the bottom, smooth operation can be performed even when the article is inserted into the bag.
-The universal design is easy to use for elderly people, small children, and people with disabilities.
・ Since it can be opened easily and securely, it has been accounted for in polyethylene bags, plastic bags, etc., which are prepared to put foods and other highly humid items in soccer stands (accounted product packaging space) such as supermarkets. The labor and time required to put foods is reduced, and the labor required for opening shopping bags, paper bags, and handbags is reduced, so that the time required to occupy the customer's soccer table is shortened and the congestion is reduced.
・ Since it can be opened easily and reliably, it not only reduces the work time and labor of packing, but also does not require materials for moisturizing and preventing slipping, so it does not require humidity, and it is hygienic for products that hate humidity, foods, etc. It is possible to improve the safety of articles that place importance on the surface. Moreover, since it is not necessary to touch an opening part, the effect which prevents the penetration | invasion to the bag inside of a germ etc. is also high.
・ Since it is structured to open by pulling the side edge of the bag in the bag width direction, it can be easily set in a packaging machine, and the bag can be opened easily and reliably in a series of manufacturing processes. This makes it possible to smoothly enclose products and the like.

A bag having an opening (4) at the upper end of the cylindrical body and closing the bottom end (5), and a pair of gussets (6) folded inward A fold width (10) from the crease (7) of the surface material (2) to the gusset fold inner end (9) and a fold (8) of the backing (3) to the gusset inner end (9 Folding width (16) from the fold (13) of the backing (3) to the inner end (15) of the gusset fold is different from the folding width (11) to the bag width direction. And the folding width (17) from the crease (14) of the front material (2) to the inner end (15) of the gusset fold are separated in the bag width direction by different sizes, and the separation width (12 and 18) The part where this occurs is on one of the edges (right side or left side) perpendicular to the bag width direction on both the front and back sides. It is a gusseted bag and said Rukoto.
-The material of the bag, the size, the thickness of the material, the purpose of use, and the items to be stored are not limited.
-For example, not only polyethylene bags used in supermarkets, plastic bags, hand-held bags, garbage collection bags, paper bags, wrapping paper bags, bags for packing products, bags used for industrial purposes, welfare and nursing use Even a bag used, a bag used for baby care, etc. are all included.
-The state in which the bag before use is stored is in the form of a roll or folded and placed in a box or outer bag.
-The bottom end portion (5) of the bag can be formed by any method such as a fusion type, a pressure bonding type, or an adhesive type. The opening (4) may be of any shape, such as simple straight cutting, cutting in which a handle is integrally formed by punching out like a shopping bag, non-linear cutting, or a cut-out type by a perforation.
The difference (12) separating the crease (7) of the front material (2) and the crease (8) of the back material (3) and the crease (13) of the back material (3) and the crease of the front material (2) ( The difference (18) that is separated from 14) is preferably 5 mm or more and 30 mm or less when pulled by a finger and pulled, and when pulled by a machine or the like, the width of the traction portion of the machine is sufficient. Moreover, when it is assumed that elderly people or people with disabilities will use, it is preferable to widen this separation width.
The difference (12) between the crease (7) of the front material (2) and the crease (8) of the back material (3) and the fold (13) of the back material and the fold (14) of the front material were separated. The difference (18) preferably has a uniform width from the opening (4) to the bottom end (5) of the bag.
-Width (10) from the crease (7) of the front material (2) to the inner end (9) of the gusset fold and Width (16) from the fold (13) of the backing (3) to the inner end (15) of the gusset fold Is the width at which the front material (2) and the back material (3) are liberated, and has a function of opening the bag, and is generally preferably 3 mm or more.
-The width (19) from the folds (7) to (14) of the front material (2) and the width (20) from the folds (8) to (13) of the backing (3) are substantially the same. Preferably there is.

When forming a gusset portion by attaching a width guide for gusset weaving operation to the left and right side edges of the bag material formed in a cylindrical shape, the folds (7), (8), (13 ) And (14), the width guides are set so that the separation widths (12 and 18) are generated. When the bag material is formed by folding a plane with paper or the like, the creases (7), (8), (13), and (14) should be creased so as to generate separation widths (12 and 18), respectively. Process into bags.
In manufacturing the gusseted bag of the shape according to the present invention, the width guide portion of the gusset folding operation portion of the conventional gusseted bag manufacturing apparatus is shifted, or the fold line for forming the conventional gusset portion is shifted, so It is possible only by making modifications so as to produce the difference.

Useful for opening plastic bags, paper bags, plastic bags, handbags, as well as polyethylene bags used by customers to pack products at supermarkets when shopping. In addition, in the packaging of goods, packaging for shipping and shipping, the working time and labor can be reduced, and hygiene and safety can be improved.

It is the perspective view of the place which opened the mouth of the bag 1 which concerns on this invention a little. FIG. 2 is a plan view of the bag 1 according to the present invention as viewed from above with the bag 1 placed in a plane. FIG. 2A is a perspective view showing the bag 1 according to the present invention, in which (a) is pinching the left and right separation portions and pulling left and right, and (b) is a portion where the separation portion is pulled left and right and the mouth of the bag is slightly opened. It is.

Explanation of symbols

1: Bag according to the present invention 2: Front material 3: Back material 4: Opening part 5: Bottom end part 6: Machi part 7: Crease of front material 8: Crease of back material 9: Inner end of gusset fold 10: Front material Width from the crease (7) to the inner end (9) of the gusset fold 11: width from the fold line (8) of the backing to the inner end (9) of the gusset fold 12: separation between the crease (7) and the crease (8) Difference 13: Crease of the backing material 14: Crease of the front material 15: Inner edge of the gusset fold 16: Width from the fold (13) of the backing material to the inner edge of the gusset fold (15) 17: From the fold of the front material (14) to the gusset Width to the inner end (15) of the crease 18: Separation difference between the crease (13) and the crease (14) 19: Width from the crease (7) of the front material to the crease (14) of the front material 20: Fold of the back material ( Width from 8) to crease (13) of backing

Claims (8)

A bag having an opening (4) at the upper end of the cylindrical body and closing the bottom end (5), and a pair of gussets (6) folded inward A fold width (10) from the crease (7) of the surface material (2) to the gusset fold inner end (9) and a fold (8) of the backing (3) to the gusset inner end (9 Folding width (16) from the fold (13) of the backing (3) to the inner end (15) of the gusset fold is different from the folding width (11) to the bag width direction. And the folding width (17) from the crease (14) of the front material (2) to the inner end (15) of the gusset fold are separated in the bag width direction by different sizes, and the separation width (12 and 18) The part where this occurs is on one of the edges (right side or left side) perpendicular to the bag width direction on both the front and back sides. Gusseted bag and said Rukoto. The gusseted bag according to claim 1, wherein the opening (4) is cut in a straight line. The gusseted bag according to claim 1, characterized in that the opening (4) is cut by die cutting. The gusseted bag according to claim 1, wherein the opening (4) is formed by non-linear cutting. The gusseted bag according to claim 1, wherein the opening (4) is formed so as to cut by a perforation. The gusseted bag according to claim 1, wherein the gusseted bag has a continuous form in an uncut state in a direction perpendicular to the width of the bag, and the opening (4) is formed to be cut by a perforation. . The gusseted bag according to any one of claims 2 to 6, wherein the bottom end (5) is formed by fusion bonding or pressure bonding. The gusseted bag according to any one of claims 2 to 6, wherein the bottom end (5) is formed by adhesion.

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