JP4480375B2 - Gusset bag - Google Patents

Description

  The present invention relates to a gusset bag and a detergent product, and in particular, includes a pair of front and rear front portions and a pair of left and right side folds that can be folded inside the front portions, and opens an upper end outlet in a self-standing state. In addition, the present invention relates to a gusset bag from which the contents can be taken out and a detergent product in which a granular detergent is contained in the gusset bag.

  A gusset bag is a bag comprising a pair of front and rear front portions formed from one or a plurality of sheet materials, and a pair of left and right side folding portions that can be folded into a V shape inside these front portions. Then, from the state where the side folding portion is folded and flatly folded, the folding portion in the vicinity of the opening is opened to form a rectangular upper end opening so that various items can be accommodated inside the upper end opening. It has become.

  In addition, such a gusset bag prevents, for example, the stored items from the upper end opening from being inadvertently exposed and allows the stored items to be taken out again, for example, at the front portion near the opening. A folding line is provided so that the upper end portion is folded back, or a cover piece is connected to the upper end of one front part and a locking string is provided on the cover piece, and this locking string is opened on the other front part. A device has been devised in which the upper end opening is closed by being wound around a winding locking piece provided near the portion.

  Furthermore, in such a gusset bag, in order to more smoothly and reliably open and close the upper end opening after accommodating the contents, in the vicinity of the bag mouth of the bag made of craft paper coated with waterproof coating, Horizontally along one or both edges of the mouth of a bag body made of a metal member (aluminum) for closing (for example, see Patent Document 1) or a bag body made of paper, vinyl, etc. A device provided with a sealing metal fitting to which a wire or a ribbon-like metal core material is attached in the direction and further along the side edge is disclosed (for example, see Patent Document 2).

Furthermore, in a garbage bag having folds on the left and right side walls, a thin metal strip or wire is provided along the bag mouth edge of the left and right side walls (see, for example, Patent Document 3), A device is disclosed in which fasteners are provided at the four corners around the periphery, and the four corners of the bag are fastened to support portions made of wire or the like via the fasteners (see, for example, Patent Document 4).
JP 2000-72159 A Japanese Utility Model Publication No. 49-12112 Japanese Utility Model Publication No. 51-46372 JP 61-142123 A

  On the other hand, the use of the gusset bag has been expanded by devising the sheet material constituting the gusset bag, the form of the gusset bag, and the like. For example, as a bag container containing powdery or granular detergent etc., it is commercialized in a state in which the contents are enclosed by sealing the upper end opening, and the user cuts off the sealing portion at the upper end to form the upper end opening In the gusset bag that can be used by repeatedly taking out the detergent, etc., it is necessary to make it possible to easily close the upper end opening that is opened after the sealing portion is cut off, and the detergent etc. from the opened upper end opening. Need to be easily removed.

  However, according to the gusset bags of Patent Documents 1 and 2, from the flat folded state, the folded portion of the side folded portion is expanded to form a rectangular upper end opening, and then the paper or Since these are simple bags made of plastic, when these are used as a bag container for containing a detergent or the like to produce a product, various problems arise. That is, the gusset bag described in Patent Document 1 is a small paper bag made of kraft paper provided in an automobile to accommodate, for example, garbage and vomit, and the metal member (aluminum) piece for closing is simply a bag mouth. However, it is not intended to make it easy to take out the stored item in a state where the gusset bag is made self-supporting. Further, according to the gusset bag described in Patent Document 2, the product is made of paper, vinyl, and the like, and after the mouth portion is closed through the mouthpiece fitting attached to the mouth portion of the bag body, The operation of simply folding the metal fitting closes the mouth without attaching a sealing paper or the like, and does not make it easy to take out the contents in a state where the gusset bag is self-supporting.

  Furthermore, according to the garbage bags and waste disposal bags of Patent Documents 3 and 4, thin metal strips and wires provided along the bag mouth edge, or wires such as wires to which the four corners of the bag are fastened. The support post portion holds the opening shape of the bag while putting garbage or waste into the bag, but does not open the bag again after folding the wire or the like to seal the bag. Therefore, it is difficult to open and close the upper end opening and repeatedly take out the stored contents as necessary.

  The present invention has been commercialized in a state in which the contents are enclosed. For example, in the gusset bag in which the sealing portion at the upper end is cut out to form a take-out port so that the contained matter can be repeatedly taken out and used, the take-out port is made to stand independently. By making it possible to easily hold the opened state, it is possible to efficiently take out the stored item, and to close the take-out port portion easily and reliably, while effectively storing the stored item. It is an object of the present invention to provide a gusset bag that can be repeatedly taken out and a detergent product containing a granular detergent in the gusset bag.

  The present invention includes a pair of front and rear front portions and a pair of left and right side folds that can be folded inside the front portions, and opens the upper end outlet in a self-standing state so that the contents can be taken out. A gusset bag in which a longitudinal linear member that can be plastically deformed is attached from the take-out port portion to the trunk portion along a vertical side where the front portion and the side folding portion are connected to each other. By providing this, the above-mentioned object is achieved.

  Moreover, this invention achieves the said objective by providing the detergent product formed by accommodating a granular detergent in the said gusset bag.

  Here, the gusset bag take-out port is located above the folded portion and above when folded at an appropriate position in the region from the upper end portion to the lower half portion, for example, in order to close the gusset bag. The body portion of the gusset bag is a portion that is positioned below the folded portion and constitutes a main body portion that accommodates an item. That is, according to the present invention, the position of the folded portion that is folded when the gusset bag is closed moves up and down with a decrease in the contents accommodated in the gusset bag. Since the position of the folded portion is arbitrarily selected within a predetermined area without being specified in advance, the upper portion sandwiching the folded portion where the gusset bag is actually folded at the time of closing is taken out, the lower portion The part is defined as a body part. Therefore, “attaching a plastically deformable longitudinal linear member from the take-out opening to the trunk” means that the longitudinal line extends over at least the vertical region of the gusset bag where the folded portion is expected to be located when closed. This means that the shaped member is attached.

  The plastically deformable longitudinal linear member and lateral linear member are made of, for example, a metal wire, a plate, a narrow plate, a mesh, a ribbon, a shape memory alloy, a shape memory resin, or the like. It is a linear member that can be easily bent and deformed with the force of a finger and has plastic deformation properties that can easily hold the shape after bending, and for example, the take-out opening is folded to close the gusset bag. In this case, it has a shape-retaining rigidity at the time of plastic deformation that can resist the folding restoring force of the sheet material at the take-out port and stably hold the folded state of the take-out port. In addition to the linear member such as a wire, the linear member includes, for example, an elongated strip-shaped member having a certain width. Furthermore, a linear member includes what is intermittently continuous in addition to what is continuous as a single linear member.

  Furthermore, when using metal linear members, such as a wire, as a longitudinal linear member and a horizontal linear member which can be plastically deformed, it is preferable to use these in a state covered with a coating resin. By covering and using the longitudinal linear member and the lateral linear member with a coating resin, the thickness (thickness) of the longitudinal linear member and the lateral linear member is substantially increased (thick), It is possible to improve the bending strength and increase the bending radius when they are bent by plastic deformation, thereby effectively improving the repeated bending durability to avoid breakage of these linear members. It becomes possible to improve. Even when these linear members are repeatedly bent and broken, it is possible to further improve safety by covering the cut surface with the coating resin.

  And as a wire and a wire which are these metal linear members, for example, a hard steel wire, a piano wire, a normal iron wire, a nail iron wire, an annealing iron wire, a concrete iron wire, etc. can be used, and bendability From the viewpoint of usability, it is preferable to use an annealed iron wire. These wires and wires can be plated with zinc, aluminum or the like to prevent corrosion or reinforce strength.

  According to the present invention, a gusset bag or a gusset bag that is manufactured in a state in which the contents are enclosed, for example, cuts off the sealing portion at the upper end to form a takeout port, and allows the contents to be repeatedly taken out and used. In detergent products containing powdery detergent, it is possible to easily hold the gusset bag take-out port open while being self-supported, so that the contents can be taken out efficiently and the take-out port portion is easy In addition, the contents can be repeatedly taken out while being reliably closed and effectively storing the contents.

  A gusset bag 10 according to a first preferred embodiment of the present invention shown in FIG. 1 is used as a container for containing, for example, a powdery detergent as a container, and as shown in FIGS. 2 (a) and 2 (b), the upper end From the state where the take-out port 11 is sealed and commercialized, the user cuts off the sealed portion along the cut line 20 to form the upper end take-out port 11, and the detergent 16 is removed from the upper end take-out port 11. It is possible to repeatedly take out and use it, and each time the necessary amount of detergent 16 is taken out, it is possible to effectively store the contained detergent 16 by closing the outlet 13 in a smooth and stable state. It is to make. That is, the gusset bag 10 according to the first embodiment constitutes a detergent product containing a granular detergent.

  The gusset bag 10 of the first embodiment includes a pair of front and rear front portions 14 and a pair of left and right side folding portions 15 that can be folded in a V shape inside the front portions 14 and is made to stand independently. In the state, the upper end outlet 11 is opened, for example, a detergent bag container in which the stored detergent 16 can be easily taken out with one hand while maintaining the opened state, and includes a front portion 14 and a side folding portion 15. The vertical linear members 18 that can be plastically deformed are attached from the take-out opening 13 to the body 12 along the four vertical sides 17 where the two are connected.

  According to the first embodiment, the gusset bag 10 is obtained by subjecting one or a plurality of sheet materials 22 cut into a predetermined shape designed in advance to various kinds of known bending and joining processes. The body portion of the bag container for containing the detergent is surrounded by a rectangular bottom portion 19 and a pair of front and rear front portions 14 and a pair of left and right side folding portions 15 erected from each side portion of the bottom portion 19. It is formed as a gusset bag container comprising a trunk portion 12 and an upper portion of the trunk portion 12 and a takeout port portion 13 that is a portion that is folded back when the gusset bag 10 is closed. Further, the gusset bag 10 has a pair of left and right side folds 15 formed in a V-shape after a predetermined amount of a powdery detergent 16 as a container is introduced from the upper end outlet 11 (see FIG. 2B). The upper outlet port 11 is sealed and sealed, for example, while being folded inwardly, so that the introduced detergent 16 is sealed inside (see FIG. 2 (a)), and the detergent 16 is not accommodated. For example, the product is commercialized as a detergent product in a state where a certain outlet 13 is double-folded (see FIG. 1).

  Further, according to the first embodiment, a multilayer sheet including an aluminum foil layer is used as the sheet material 22 constituting the gusset bag 10, and preferably, for example, the outermost layer as shown in FIG. A multilayer sheet having a five-layer structure in which the first layer is polyester, the second layer is polyethylene, the third layer is aluminum foil, the fourth layer is polyethylene, and the fifth layer, which is the innermost layer, can be used. In addition, the thickness of the aluminum foil layer in the multilayer sheet is preferably 5 to 50 μm, and more preferably 5 to 20 μm. By using a multilayer sheet including an aluminum foil layer as the sheet material 22, it is possible to facilitate a folding operation when resealing (resealing), and it is difficult for wrinkles or the like to occur in the bag, and the gusset bag 10 It becomes possible to maintain a good appearance.

  Further, the pair of front and rear front portions 14 and the pair of left and right side side folding portions 15 are formed so that the innermost sealant layer of the sheet material 22 is formed at the corner portion 17 at each of the four vertical sides 17 of the body portion 12 and the takeout port portion 13. For example, it is joined and integrated into a hollow cylindrical shape having a rectangular cross section through a hem seal 23 which is a folded seal portion by folding and joining with a hem seal width of, for example, about 2 to 30 mm. Moreover, by this, when the opening 11 at the upper end of the gusset bag 10 is opened, it has a rectangular shape having the same size as the bottom portion 19. The pair of front and rear front portions 14 and the pair of left and right side side folded portions 15 are joined to each other by hem seals 23 at the four standing edges 17 so that the shape retaining property of the gusset bag 10 and the opening of the take-out port 11 are maintained. It becomes possible to fully exhibit the sex.

  Furthermore, according to the first embodiment, the longitudinal linear members 18 that can be plastically deformed are attached along the four standing edges 17 where the front portion 14 and the side folded portion 15 are connected. . The plastically deformable longitudinal linear member 18 is made of a metal wire having a thickness of 0.1 to 5.0 mm, preferably 0.3 to 1.0 mm, for example, and is covered with, for example, an adhesive tape. At a position close to the hem seal 23 of the four vertical sides 17 that is affixed to the outer surface of the side sheet 15, the length extends from the outlet 13 to the trunk 12 along the hem seal 23 in parallel with the hem seal 23. It is attached.

  Further, according to the first embodiment, as shown in FIG. 4A, it is preferable that the longitudinal linear member 18 made of a metal wire is covered with the covering resin 25 and used. Here, as the coating resin, for example, polyolefin-based resin, vinyl chloride, polyester-based resin, polyamide-based resin, and the like can be used. For example, the periphery of the longitudinal linear member 18 with a thickness of 0.05 to 5.0 mm It is preferable to cover. Further, it is more preferable to cover with a thickness of 0.05 to 3.0 mm from the exterior of the bag. By covering the periphery of the longitudinal linear member 18 with the coating resin 25, the thickness (diameter) of the longitudinal linear member 18 is substantially increased, and the bending strength of the longitudinal linear member 18 is improved. Is possible. Further, as shown in FIGS. 5A and 5B, the inner peripheral bending radius R when the longitudinal linear member 18 is folded is set to the case where only the longitudinal linear member 18 is used (see (b), for example, R <1 mm) (see (a), for example, R ≧ 1.5 mm, preferably R ≧ 2.5 mm), thereby avoiding breakage of the longitudinal linear member 18 Therefore, it is possible to effectively improve the repeated bending durability. Further, even when the longitudinal linear member 18 is repeatedly bent and broken due to deterioration of the bent portion, it is possible to further improve the safety by covering the cut end with the coating resin 25.

  Here, by covering the periphery of the longitudinal linear member 18 with the coating resin 25, it becomes possible to further improve the workability of the longitudinal linear member 18 and the workability of attaching to the gusset bag 10. Further, by covering the periphery of the longitudinal linear member 18 with the covering resin 25 with a wide flat shape as shown in FIG. 4B, the handling performance of the longitudinal linear member 18 is further improved and the bonding is performed. By increasing the area, for example, it is possible to effectively improve the bonding strength by heat sealing or the like.

  And the gusset bag 10 of this 1st Embodiment is commercialized as a detergent product in the state which enclosed the powdery detergent 16 as mentioned above, and a user cuts off the sealing part of an upper end, and the upper end extraction port 11 However, according to the gusset bag 10 of the first embodiment, the state in which the upper end outlet 11 is opened can be easily held while being self-supported. As a result, the detergent 16 can be efficiently taken out, and the detergent 16 can be taken out repeatedly while the take-out port portion 13 is easily and reliably closed and the detergent 16 is effectively stored.

  That is, according to the first embodiment, the gusset bag 10 has the longitudinal linear members 18 that can be plastically deformed along the four standing edges 17 where the front portion 14 and the side folding portion 15 are connected. Since the upper end outlet 11 is opened and opened in a rectangular shape, the four longitudinal linear members 18 standing at the four vertical sides 17 are provided since they are respectively attached from the outlet 13 to the body 12. It functions as a pillar at the corner, and the upper end outlet 11 can be easily held in a wide open state in a rectangular shape, which makes it easy to clean the detergent 16 that is contained even in a self-standing state. And it becomes possible to take out efficiently.

  In addition, the longitudinal linear members 18 arranged along the four standing edges 17 can be easily bent and deformed by the force of the fingers of the hand, and the shape after the bending can be easily maintained. When the gusset bag 10 is closed by folding the take-out port portion 13 by being plastically deformable, it effectively resists the folding restoring force of the sheet material 22 of the take-out port portion 13, Since it has shape-retaining rigidity at the time of plastic deformation that can stably hold the folded state, the upper ends of the pair of front portions 14 at the upper end outlet 11 are overlapped while folding the side folded portions 15 inward. While closing the take-out port 11, the sheet material 22 of the take-out port portion 13 together with the longitudinal linear member 18 is simply folded back along the turn-up portion 24, so that the gusset bag 1 It is possible to close the outlet portion 13 easily and reliably.

  Note that the gusset bag 10 can be closed by folding the take-out port portion 13 as shown in FIG. 6 by one-time folding along the folding portion 24, but along the plurality of folding portions 24. By turning back twice or more (see FIG. 1), the gusset bag 10 can be more reliably closed. Further, for example, by drawing a folding guide line on the surface of the front portion 14 in advance, the take-out port 13 can be folded along the folding guide line. Further, the stored detergent 16 can be reduced. Accordingly, the take-out port portion 13 can be folded back while appropriately shifting the folding portion 24 downward. Furthermore, when the amount of the detergent 30 is reduced, the upper portion of the bag 10 is cut at an appropriate position where the detergent 30 can be easily taken out, so that the gusset bag 10 can be easily handled according to the amount of the detergent 30. It is also possible to appropriately modify the height of.

  When the stored detergent 16 is used again, the upper end outlet 11 is opened while plastically deforming the folded longitudinal linear member 18 so as to restore the linear shape, and such a longitudinal direction is used. The detergent 16 is used while repeatedly opening the upper end outlet 11 and closing the outlet 13 with the linear member 18 as a core.

  FIG. 7 shows a gusset bag 30 according to a preferred second embodiment of the present invention. According to the gusset bag 30 of the second embodiment, in addition to the constituent features of the first embodiment, each side surface is shown. The upper end portion of each of the pair of longitudinal linear members 18 attached along the hem seal 23 on the outer surface of the folding portion 15 can be plastically deformed to form a U-shape together with each pair of the longitudinal linear members 18. A lateral linear member 31 is attached along each side fold 15.

  And according to the gusset bag 30 of this 2nd Embodiment, while exhibiting the same effect as the gusset bag 30 of the said 1st Embodiment, a horizontal direction line | wire between the upper end parts of a pair of vertical direction linear member 18 is shown. Since the linear member 31 is provided so as to cross the side folds 15, when the upper end outlet 11 is opened, the lateral linear member 31 is restored to a linear shape and supported on the inside. It is possible to easily hold the upper end take-out port 11 expanded in a rectangular shape in a state in which the side fold portion 15 that has been folded is extended, and thereby, the stored detergent 16 can be more easily and efficiently taken out. It becomes possible.

  In the second embodiment, the lateral linear member 31 provided at the upper end portion of the longitudinal linear member 18 needs to be continuously provided so as to connect the upper ends of the pair of longitudinal linear members 18. For example, as shown in FIG. 8, the upper ends of the pair of vertical linear members 18 are not necessarily provided at the upper end portion including the region between the upper ends of the pair of vertical linear members 18 or slightly shifted up and down from the upper ends. For example, a U-shape may be formed by three linear portions spaced apart from each other. Further, similarly to the longitudinal linear member 18, the lateral linear member 31 can be used by covering the periphery thereof with a coating resin 25.

  FIG. 9 shows a gusset bag 40 according to a third preferred embodiment of the present invention. According to the gusset bag 40 of the third embodiment, in addition to the constituent features of the first embodiment, each side surface is shown. The pair of longitudinal linear members 41 attached along the hem seal 23 on the outer surface of the folding portion 15 are provided so as to extend to the bottom portion of the trunk portion 12 of the gusset bag 40.

  And according to the gusset bag 40 of this 3rd Embodiment, while there exists an effect similar to the gusset bag 10 of the said 1st Embodiment, the lower part of the longitudinal linear member 41 is in the part in which the detergent 16 was accommodated. It will be arrange | positioned at the trunk | drum 12, and the said lower part will be supported by the side pressure from the detergent 16, and the function as a pillar at the time of opening the extraction port 11 will be exhibited more effectively. As the stored detergent 16 decreases, the take-out port 13 can be folded back and closed while the folding portion 24 is shifted downward over a wider range.

  The present invention can be variously modified without being limited to the above embodiments. For example, the sheet material constituting the bag is not necessarily a multilayer sheet having the above-described configuration including an aluminum foil layer, and may be a sheet material not including an aluminum foil layer or a single-layer sheet material. For example, a sheet material made of polyolefin resin, vinyl chloride, polyester resin, polyamide resin, or the like can be used in a single layer or multiple layers. In addition, the container to be stored is not necessarily a powdery detergent, and is used as a bag container for storing various other containers such as liquid containers such as shampoo and rinse, and solid containers such as confectionery. You can also

  Further, as shown in FIG. 10, by attaching a plastically deformable annular linear member 52 having a rectangular shape substantially the same as the rectangular opening shape of the upper end outlet 51 together with the longitudinal linear member 50, The extraction port 51 can be opened in a stable state. Further, a sheet material having a rectangular shape substantially the same as that of the front portion and provided with longitudinal linear members on both side edge portions is inserted and arranged inside the bag along the inner side surface of each front portion. Directional linear members can also be disposed along the four corners.

  Furthermore, in the case where hem seals are formed at four vertical sides, the vertical linear members are arranged along the four vertical sides by arranging the vertical linear members inside the joint of the hem seal. In this way, by arranging the longitudinal linear member inside the joint of the hem seal, the longitudinal linear member and the mounting member thereof do not appear in the appearance, and when lining up at the storefront or when using the gusset bag It becomes possible to make it look beautiful. In addition, the longitudinal linear member and the lateral linear member can be disposed by being attached or welded with a tack seal or an adhesive.

It is a perspective view which shows the gusset bag which concerns on 1st Embodiment of this invention. (A) is a perspective view which shows the state which enclosed the accommodated material in the gusset bag which concerns on 1st Embodiment of this invention, (b) is a perspective view which shows the state which opens the same upper end extraction port. It is sectional drawing explaining an example of the layer structure of the sheet material which comprises a gusset bag. (A) And (b) is a perspective view which illustrates the plastically deformable linear member by which the circumference | surroundings were covered with coating resin. (A) And (b) is explanatory drawing of the inner periphery bending radius R at the time of bending the linear member which can be plastically deformed. It is a perspective view which shows the state which folds out a taking-out opening part and obstruct | occludes a gusset bag. It is a perspective view which shows the state which opens the upper end extraction opening of the gusset bag which concerns on 2nd Embodiment of this invention. It is a side view explaining the other arrangement arrangement situation of a longitudinal direction linear member and a transverse direction linear member in a gusset bag concerning a 2nd embodiment of the present invention. It is a perspective view which shows the state which opens the upper end extraction port of the gusset bag which concerns on 3rd Embodiment of this invention. It is a partial schematic perspective view which illustrates further another embodiment of this invention.

Explanation of symbols

10, 30, 40 Gusset bag 11 Upper end take-out port 12 Body portion 13 Take-out port portion 14 Front portion 15 Side fold portion 16 Detergent (containment)
17 Vertical edges 18, 41 Vertical linear member 19 Bottom 20 Cut line 22 Sheet material 23 Hem seal 24 Folding line 25 Covering resin 31 Horizontal linear member

Claims (6)

It has a pair of front and rear front parts, and a pair of left and right side folds that can be folded inside these front parts, and has a rectangular bottom, and has been commercialized by sealing the top outlet. A gusset bag in which a rectangular upper end outlet is formed from a state in which the stored item can be repeatedly taken out in a self-standing state,
Along a vertical side where the front part and the side folding part are connected, plastically deformable longitudinal linear members are respectively attached from the take-out port part to the trunk part,
The vertical linear members are attached to the side folds along the four vertical sides, and the upper ends of each pair of vertical linear members attached to the side folds are A plastically deformable transverse linear member that forms a U-shape with each pair of longitudinal linear members is attached along each side fold,
The lateral linear member is restored to a straight line when the upper end outlet is opened, and the gusset that holds the upper end outlet expanded in a rectangular shape is formed by extending the side folded portion that has been folded inward. Bag . 2. The gusset bag according to claim 1 , wherein a folded-back seal portion is formed on the upright side, and the longitudinal linear member is disposed inside the joint of the folded-back seal portion .   The gusset bag according to claim 1 or 2, wherein the longitudinal linear member and / or the lateral linear member is covered with a coating resin.   The said longitudinal direction linear member is a gusset bag in any one of Claims 1-3 extended and provided to the bottom part of the said trunk | drum.   The gusset bag according to any one of claims 1 to 4, which is formed by a multilayer sheet including an aluminum foil layer.   A detergent product comprising a powdered detergent contained in the gusset bag according to any one of claims 1 to 5.

Images