JP6455743B2 - Self-supporting storage bag - Google Patents

Description

  The present invention relates to a self-supporting storage bag that can be folded and carried, can be placed around it, can store garbage, and can be discarded as it is.

When a runny nose does not stop due to catching a cold or hay fever, a pile of tissue paper may form around you. In addition, there are cases where there are no garbage bins in the familiar place such as a dressing table or in a car, which can cause troubles in the waste disposal site.
Accordingly, various types of garbage bags have been proposed. For example, garbage bags used for outdoor activities such as excursions and trash bags used to clean up excrement during pet walks are too large to be convenient for carrying. A portable garbage bag having a plurality of folded and folded bag bodies in a pocket-sized wrapping bag is disclosed (Patent Document 1).
In addition, since there are many occasions for eating in a car and using tissue paper, it is common to keep tissue paper in the car. However, although rubber bag storage boxes are used in daily life, it is extremely rare for garbage bags to be permanently installed in the vehicle. In view of this, a box-shaped storage device is disclosed in which a box body containing a trash bag can be easily attached to an automobile (Patent Document 2).
In addition, you can use the trash bag immediately after opening the wrapping bag to store the trash bag, and also close the mouth of the bag to prevent the mischief of birds and insects when carrying around and throwing away the trash A portable garbage bag that can be used is disclosed (Patent Document 3).
Further, since the garbage bags are generally discarded with the ends of the openings tied and the openings sealed, the amount stored in the garbage bags is sacrificed. Furthermore, since the knot of the opening is unraveled when dust is collected and dust is scattered and water leaks, the environment of the garbage collection site is deteriorated. And an opening hole, a garbage bag that can be used for various purposes such as dust removal, trash box, suspension, and portable use is disclosed (Patent Document 4).

JP 2000-25901 A JP 2009-45962 A Utility Model Registration No. 3145074 Japanese Patent No. 5240637

However, even though the above-mentioned garbage bag is effective when storing garbage in a lump, it is inconvenient to carry around constantly, place it around when necessary, and store it little by little.
In view of the above circumstances, the present invention can be carried at all times, and can be taken out and placed around when necessary, so that simple garbage such as tissue paper can be stored and discarded. An object of the present invention is to provide a compact and self-supporting storage bag that can easily close the opening.

The self-supporting storage bag of the present invention is formed by folding each side an odd number of times, with the lines connecting the centers of the opposing sides of any one of the plastic sheet or film, and overlapping the other opposing sides, It is formed by joining each edge of the folded sides, the bottom from the border to the folds on both sides, the side that can be folded at odd number of times, the side that can be stretched, and the other opposite sides that overlap are opened and closed It is characterized by a free opening.
In this way, each opposing side of the sheet or film is odd-diffracted, and the other side is overlapped and joined together, and since there is a bottom of a certain size, it is always placed around us, If the opening is opened and the garbage is stored whenever necessary, the opening starts to close naturally, so it is hygienic and looks good.
Then, each of the one opposing sides is folded at least three times so that the mountain folds face each other on both sides of the boundary and each of the other opposing sides overlaps the mountain folds. It is easy to do, and even if the amount of stored items increases, it can cope with it.
The sheet or the film is made of a thermoplastic resin or a biodegradable resin, and the edge portion and both ends of the other opposing side can be easily welded and joined with a heat sealer.
Further, the other opposing sides overlapped with each other are expanded to open the opening, the side portions are extended to store the objects to be stored, and the edges are pulled in opposite directions. Can also be closed, so it is possible to prevent garbage from popping out.

  The self-supporting storage bag of the present invention is compact and convenient to carry, and can be disposed around and store trash etc. whenever necessary. In addition, since the opening is normally closed, the edge of the opening is expanded to store dust and the like, but the opening starts to close naturally, so that the appearance is good and hygienic. Further, when a certain amount of storage is collected, the bag can be thrown into the trash and the like, and when being put into the trash, the opening can be closed properly, so that the trash can be prevented from jumping out.

FIG. 1 is a plan view showing an example of the self-supporting storage bag of the present embodiment. FIG. 2 is a side view showing an example of the self-supporting storage bag of the present embodiment. FIG. 3 is a diagram showing a portion where the sheet or film is folded. FIG. 4 is a diagram illustrating a state where an inner valley fold and a mountain fold are performed. FIG. 5 is a plan view of a folded body formed by folding all the portions. FIG. 6 is a schematic view of the edge of the folded body. FIG. 7 is a view showing a plane of the self-supporting storage bag of the present embodiment. FIG. 8 is a view of the side surface of the self-supporting storage bag of the present embodiment as viewed obliquely from above.

Below, embodiment of the self-supporting storage bag of this invention is described.
FIG.1 and FIG.2 is a figure which shows an example of the self-supporting storage bag of this embodiment, FIG. 1 is a figure which shows a plane, FIG. 2 is a figure which shows a side surface.
As shown in FIGS. 1 and 2, the self-supporting storage bag 1 of the present embodiment is one of the opposing sides (hereinafter referred to as “opposing sides”) of a plastic rectangular sheet or rectangular film. A line connecting the centers of the sides 8 and 9 is defined as a boundary 2, and both sides thereof are folded three times each, and the other unfolded opposite sides 6 and 7 are overlapped to form a rectangular folded body 5. It is formed by welding and joining the folded edge portions 8a and 8b that hit the upper end and the lower end of the folded body 5, respectively.
Therefore, the rectangular part from the boundary 2 to the creases (valley folds) on both sides becomes the bottom part 10, and the three-folded folded part becomes the stretchable side part 11, and other opposing sides 6 and 7 that are not folded are overlapped. The opened portion is an opening 12 that can be freely opened and closed.
Since the opening 12 is welded and joined together with the edges 8a and 9a of the one opposing side 8 and 9 in which the opposite ends 6a and 7a of the other opposing sides overlapped are folded, the opening 12 is normally closed. . However, since the middle of the other opposed sides 6 and 7 is not welded and joined, if the other opposed sides 6 and 7 are grasped with both hands and expanded in the directions of arrows A and B, the opening 12 is obtained. Can be opened. In that case, since both ends 6a and 7a of the other opposing sides are welded and joined together with the edge portions 8a and 9a, both ends 6a and 7a of the other opposing sides are held in an overlapping state, and the gripped hand is released. Then, the closing force acts and closes gently.
Further, two mountain folded portions 3 and one valley folded portion 4 are formed on the outer surface side of the side portion 11, and when the bottom portion 10 is pushed in the direction of arrow C with a hand inserted into the opening portion 12, the side portion 11 is formed. The space expands to form a space for storing dust and the like inside.
The opening 12 can be properly closed by pulling the welded and joined edges 8a and 9a in a state where a certain amount of dust is stored in the storage space.
Although the self-supporting storage bag 1 of this embodiment is made using a rectangular sheet or a rectangular film, it is not necessarily rectangular and may be rectangular. Further, the opposing sides do not need to be straight lines, and in particular, the other opposing sides to be overlapped may be arcuate, triangular, semicircular, serrated or the like.

3 to 6 are diagrams showing a schematic process for understanding the structure of the self-supporting storage bag of the present embodiment, FIG. 3 is a diagram showing a part where a sheet or a film is folded, and FIG. The figure which shows the state which performed the inner valley fold and the mountain fold, FIG. 5 is the figure which folds all the parts and shows the plane of the formed folding body, FIG. 6 is the upper end or lower end of a folding body It is a schematic diagram which shows an edge part.
The sheet or film shown in FIG. 3 is made of a thermoplastic resin, and has two mountain folds 3 facing each other and four valleys facing away from the center of one opposing side 8, 9 as a boundary 2. In order to form the fold portion 4, the portion where the valley is folded is indicated by a one-dot chain line, and the portion where the mountain is folded is indicated by a two-dot chain line. When the sheet or film is folded along these chain lines, a folded body (shown in FIG. 5) having the bottom 10 from the boundary 2 to the valley fold 4 is formed.
Here, the sheet or film shown as an example uses a high-density polyethylene extruded with a die cut at the top and bottom, but it is not necessarily limited to this, and both sides of the long film are folded. Later, the top and bottom may be cut into a predetermined size and heat-sealed.
High-density polyethylene has strength such as being frequently used in shopping bags and garbage bags, and has the property that it can be easily welded and bonded by pressing a hot plate with the films overlaid.

In the embodiment shown in FIG. 4, the portion indicated by the alternate long and short dash line on the innermost side of the sheet or film is valley-folded, and the portion indicated by the alternate long and two short dashes line on the outer side thereof is mountain-folded. Therefore, the mountain fold portions 3 formed on both sides face each other with the boundary 2 therebetween.

The aspect shown in FIG. 5 has shown the foldable body 5 formed by valley-folding the part currently displayed with the dashed-dotted line in FIG. As is apparent from FIG. 5, the other opposing sides 6 and 7 of the sheet or film overlap each other, and each of the other opposing sides 6 and 7 also overlaps the opposing mountain fold 3 (not shown in the figure). It becomes.

The aspect shown in FIG. 6 has shown typically the edge part which hits the upper end or lower end of the folding body 5. FIG. The folding body 5 in the present embodiment is formed by folding the opposite sides 8 and 9 of one of the sheets or films on the both sides of the central boundary 2 three times, so that there is one mountain folding part 3 on the left and right. Each is formed, and two valley folds 4 are formed on the left and right sides. The left and right mountain folded portions 3 face each other in a non-contact state, and the other opposing sides 6 and 7 overlap each other and also overlap the mountain folded portion 3.
When the edges 8a and 9a of the folded body 5 in a state where sheets or films overlap in this way are welded and joined with a heat sealer or the like, the self-supporting storage bag of this embodiment can be obtained.
In that case, if you use the method of cutting the long film extruded with a die without cutting it at a predetermined size, folding both sides continuously, welding with a sealer for each predetermined length, and cutting efficiently The self-supporting storage bag 20 can be manufactured.
Here, the sheet or film of the present embodiment is folded three times on both sides, and one mountain fold part 3 is formed on each side of the foldable body 5, but the number of times of folding is 3 if it is an odd number. It is not necessary to limit to the number of times, and it may be five times. In this case, if the number of times of folding is N, (N−2) mountain folds 3 and (N−1) valley folds 4 are formed on both sides of the rectangular body 5.

7 and 8 are diagrams showing a method of using the self-supporting storage bag according to the present embodiment, FIG. 8 is a diagram showing a plan view of the self-supporting storage bag, and FIG. 9 is a diagram of the side as seen obliquely from above. is there.
When storing garbage or the like in the self-supporting storage bag 1 of the present embodiment, garbage or the like is removed by opening each of the other opposing sides 6 and 7 of the opening 12 that are overlapped with both hands and opening them in the directions of arrows A and B. The opening for storage opens, and the bottom 10 can be seen from the opening. Moreover, if a hand is put in from the opening part 12 and the side part 11 is extended up and down in the arrow D direction, the space which accommodates garbage etc. will expand. Moreover, the rectangular bottom part 10 has a fixed size and is satisfactorily seated.
In that case, since both ends 6a and 7a of the other opposing sides 6 and 7 are welded and joined together with the edge portions 8a and 9a, the other opposing sides 6 and 7 are held with both ends 6a and 7a overlapping. Yes. Therefore, if it is left as it is, the closing force acts and it closes gently.
Also, when throwing away trash after a certain amount of trash is stored in the storage space, if the edges 8a and 9a are pulled, the opening 12 closes properly. Trash etc. will not scatter.

  Because it is compact, it can be used as a bag for temporary storage so that small objects do not scatter, in addition to being used for storage of garbage, etc. by placing it in a vacation place, event venue, familiar place, in a car, etc. .

DESCRIPTION OF SYMBOLS 1 Self-supporting storage bag 2 Boundary 3 Mountain fold part 4 Valley fold part 5 Folding bodies 6, 7 Other opposing side 6a, 7a Both ends 8, 9 One opposing side 8a, 9a Edge part 10 Bottom part 11 Side part 12 Opening part

Claims (2)

A fold-folded part that folds on both sides an odd number of times with a line connecting the centers of the opposite sides of either one of the plastic sheet or film as a boundary, and confronts both sides of the boundary
The other opposing sides are overlapped with each other so that the other opposing sides overlap each other, and then formed by welding and joining each of the folded edges on both sides, the bottom from the boundary to the folds on both sides, A self-supporting storage bag characterized in that an odd-folded portion is a side portion that can be expanded and contracted, and an opening portion that can be opened and closed is the other opposite side that is overlapped. 2. The overlapped other opposing sides are expanded to open the opening, the side portions are extended to store dust, and after a certain amount of dust has accumulated, it is discarded as it is. Self-supporting storage bag.