JP6516379B2 - Containing bag and method of manufacturing containing bag - Google Patents

Description

  The present invention relates to a storage bag and a method for manufacturing the storage bag, and more particularly to a storage bag and a storage bag that can be stably and stably made simple.

  A flexible container bag for containing soil, powder and granular material, and other objects to be accommodated can be stably supported in the state where the object to be accommodated is accommodated, so that one end of a cylindrical trunk opened at both ends. On the other hand, by attaching (stitching) the bottom of the shape corresponding to the shape of the opening, it was manufactured so that it might become a bag which one end opened (for example, refer to patent documents 1).

JP 2012-121629 A

  However, the bag described in Patent Document 1 manufactured by attaching the body and the bottom, which are separate components, not only takes time and effort to manufacture, but also makes the body and the bottom curved. To sew, experience and skill were required.

  SUMMARY OF THE INVENTION In view of the above-described problems, the present invention has an object to provide a storage bag and a method for manufacturing the storage bag, which have a simple configuration while being able to stand on a stable basis when storing a storage target.

  In order to achieve the above object, the storage bag according to the first aspect of the present invention has a flexible storage in which an opening 1h capable of taking in and out the storage object S is formed as shown in FIG. 1, for example. A reference state in which the inner space of the first sheet portion 11 constituting a part of the storage bag 1 and the bag body in which the storage object S is not stored is crushed (for example, FIG. 2 (B ), The second sheet portion 12 in contact with the inner surface of the first sheet portion 11 on the inner surface; and in the reference state, the edge 11e of the first sheet portion and the first sheet portion at the position facing the opening 1h An end side 12e of the second sheet portion is continuously connected to form a bottom side 13; in a reference state, an end of the first sheet portion 11 at the side portion 15 between the opening 1h and the bottom side 13 Section and the end of the second sheet section 12 are connected in series; A base first end 13a which is one end of the side 13 and a base second end 13b which is the other end of the base 13 are connected to each other; a base first end 13a and a base second end 13b The portion of the annular base 13 formed by the connection between the first base end 13a and the predetermined distance D is a portion 13j where the first base end 13a and the second base end 13b are connected. A portion 13 j where the first base end 13 a and the second base end 13 b are connected and the base 13 cross each other.

  According to this structure, when the object to be accommodated is accommodated, the periphery of the bottom side is not elongated and cylindrical from the periphery of the bottom side toward the opening portion, and it is possible to stably stand independently while having a simple configuration.

  In order to achieve the above object, the manufacturing method of the storage bag according to the second aspect of the present invention is, for example, as shown in FIG. 3, a bag 1A in which an opening 1h capable of taking in and out the storage object is formed. And includes a first sheet portion 11 constituting a part of the bag body 1A and a second sheet portion 12 in contact with the inner side of the first sheet portion 11 on the inner surface, and the object to be accommodated is accommodated In a reference state in which the inner space of the bag 1A is not crushed, the end side of the first sheet portion and the end side of the second sheet portion are continuously connected at the position facing the opening 1h. A step of providing the flexible bag body 1A in which the base 13 is formed (see FIG. 3A); and a predetermined distance from the base first end 13a which is one end of the base 13 in the reference state At the overlapping target point 13p which is a portion of the base 13 separated by D, the other of the base 13 An overlapping step (see FIG. 3B) of overlapping the bottom second end 13b which is the end; and a bottom second end overlapped on the overlapping target point 13p by the bottom 13 from the bottom first end 13a to the predetermined distance D The bottom side when the bottom second end 13b is overlapped in the overlapping step (see FIG. 3B) after the covering step (see FIG. 3C) covering the 13b; and the covering step (see FIG. 3C) 13, in the same direction as the folded back direction, the base 13 from the base first end 13 a to the predetermined distance D is folded back to approach the base first end 13 a to the base second end 13 b (see FIG. 3D) And.

  If comprised in this way, the intermediate product of the storage bag which can be stably made to stand by simple structure can be manufactured simply.

  Further, the storage bag according to the third aspect of the present invention, for example, shown with reference to FIG. 3 (D), in the method for manufacturing the storage bag according to the second aspect of the present invention, A connecting step is provided for connecting the approaching bottom first end 13a and the bottom second end 13b.

  If comprised in this way, the storage bag which can be stably made to stand by simple structure can be manufactured simply.

  According to the present invention, it is possible to provide a storage bag that can be made to stand on its own when the storage object is stored with a simple configuration, or this storage bag or an intermediate product can be easily manufactured. .

(A) is a perspective view of the storage bag which concerns on embodiment of this invention, (B) is a perspective view of a state before a part of base before becoming the storage bag shown to (A) passes over a connection part. . (A) is a perspective view of the bag body before a base is formed, (B) is a top view of the intermediate body of the storage bag in a reference state. It is a top view which shows the procedure which manufactures the storage bag which concerns on embodiment of this invention. It is a fragmentary perspective view of an intermediate immediately before becoming a storage bag concerning an embodiment of the invention. It is a top view of the intermediate body of the storage bag in a standard state concerning a modification.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each of the drawings, the same or corresponding members are denoted by the same or similar reference numerals, and the redundant description will be omitted.

  First, the storage bag 1 according to the embodiment of the present invention will be described with reference to FIG. FIG. 1 (A) is a perspective view of the storage bag 1 and FIG. 1 (B) is a perspective view of a state before a part of the bottom 13 before becoming the storage bag 1 passes over the connection portion 13j.

  Specific examples of the storage bag 1 include a flexible container bag, a large storage bag, and a small storage bag. The flexible container bag is a bag that accommodates, stores, or transports the storage target S (hereinafter, simply referred to as "the storage S"). The large containing bag includes a large soil bag, a containing bag for civil engineering, and a bag for civil engineering. Small storage bags include soil bags. When the container S stored in the storage bag 1 is exemplified, powder and granular materials can be mentioned, and specifically, wheat flour, rice grains, soil, chips and the like can be mentioned. If it is, it may be a scrap or various other objects.

  The storage bag 1 is generally formed by sewing a sheet. The sheet is typically a woven fabric made of chemical fibers. As chemical fibers, typically, yarns of polyethylene, polypropylene and the like are used, but yarns of synthetic resins other than these may be used. As the chemical fiber, an appropriate one is used depending on the application, for example, a wide one is used when the containing bag 1 is a flexible container bag. By making the sheet into a woven fabric of chemical fibers, the tensile strength is increased. Such sheets are flexible. The storage bag 1 generally formed of a sheet also has flexibility. Having flexibility means that the container S is flexible enough to be difficult to stand in a state where the container S is not stored. The accommodation bag 1 is foldable because the sheet has flexibility. Therefore, the storage bag 1 can be folded when the storage item S is not stored, and can be stored in a space-saving manner by stacking.

  The storage bag 1 includes a first sheet portion 11 (hereinafter referred to as "first sheet portion 11") and a second sheet portion 12 (hereinafter referred to as "second sheet portion 12"). In the present embodiment, the first sheet portion 11 and the second sheet portion 12 are each formed in a rectangular shape, and both are in a congruent manner. In the first sheet portion 11, one of four sides forming a rectangle is a first sheet end side 11e (corresponding to an end side of the first sheet portion 11). In the second sheet portion 12, one of the four sides forming a rectangle is a second sheet end side 12e (corresponding to the end side of the second sheet portion 12). The first sheet portion 11 and the second sheet portion 12 are continuous with each other on all the side portions 15 extending at right angles from both ends of the first sheet edge 11 e or the second sheet edge 12 e. The first sheet portion 11 and the second sheet portion 12 are formed in a cylindrical shape by being connected in series at both side portions 15 so that they are combined together. Further, in the first sheet portion 11 and the second sheet portion 12, the bottom 13 is formed by continuously connecting the first sheet end 11e and the second sheet end 12e. Here, the continuous connection of the first sheet edge 11e and the second sheet edge 12e means that the edges are adjacent to each other without any other member. . In the present embodiment, the entire first sheet edge 11e and the entire second sheet edge 12e are continuously connected, and are typically connected by being sewed in a straight line. An opening 1 h is formed on the side facing the bottom side 13.

  As shown in FIG. 2A, the first sheet portion 11 and the second sheet portion 12 typically cut a long sheet formed in a tubular shape into the length of the side portion 15 In the original, both sides 15 are continuously connected, but two congruent rectangular sheets may be connected later at both sides 15 to form a tubular shape. Good. The first sheet portion 11 and the second sheet portion 12 formed in a cylindrical shape are crushed so that the inner side of the first sheet portion 11 and the inner side of the second sheet portion 12 come in contact with each other as a whole. 15 will be able to clearly grasp. In this squeezed state, by continuously connecting the first sheet end 11e and the second sheet end 12e, which are one of the opposing sides of another set from the both sides 15, to form the bottom of the bag. 13 will be formed (see FIG. 2 (B)). When the first sheet edge 11e and the second sheet edge 12e are connected, typically, the first sheet portion 11 and the second sheet portion 12 are not folded back. Therefore, bottom 13 is not formed in the state where the outer surface of the 1st sheet part 11 and the outer surface of the 2nd sheet part 12 contacted, and a gusset or a gusset is not formed. The bottom side 13 is typically formed by sewing, but may be formed by means other than sewing such as heat welding. As described above, in the present embodiment, the first sheet end 11e of the first sheet portion 11 and the second sheet end 12e of the second sheet portion 12 are continuously connected to each other (other members are Since the base 13 of the bag is formed by the non-intervening), the base 13 of the bag can be formed more simply than in the case where another sheet member constituting the bottom of the bag of any shape is connected. it can. A state in which the bag body in which the bottom side 13 is formed is crushed and the appearance becomes rectangular is referred to as a reference state. That is, the reference state is a state in which the ends of the base 13 are not connected unlike the state in which the ends of the base 13 shown in FIGS. 1A and 1B are connected. The bag body in the reference state before becoming the storage bag 1 (see FIG. 1A) is referred to as a reference intermediate 1A for convenience. In the reference intermediate 1A, the entire inner side of the first sheet portion 11 and the entire inner side of the second sheet portion 12 are in contact with each other, and the bag body is crushed to have a rectangular appearance.

  As shown in FIG. 2 (B), in the present embodiment, one end of the first belt 18 is connected to the base first end 13a which is one end of the base 13, and the other end of the base 13 is One end of the second belt 19 is connected to the bottom second end 13b. The other end of the first belt 18 and the other end of the second belt 19 are respectively free ends. The first belt 18 may be annular and the other end of the first belt 18 may be connected to the bottom first end 13a together with one end thereof. Instead of the first belt 18, the second belt 19 may be annular. It may be connected to the bottom second end 13b. The first belt 18 and the second belt 19 are typically formed in a band shape having a width within a range in which they can be connected to each other. Correspondingly, tapes, ropes, cords, thick and strong yarns, etc. which are narrower than the band are included. The first belt 18 and the second belt 19 may be of different types (bands, ropes, etc.) and materials, but in the present embodiment, both are made of the same material, and typically It is made of chemical fiber and is at least flexible to the extent that it can be tied together. The first belt 18 and the second belt 19 are connected to the first base 13a and the second base 13c typically by sewing, but are connected by means other than sewing such as heat welding. It is also good.

  Referring back to FIG. The storage bag 1 is connected to the bottom first end 13 a and the bottom second end 13 b to form a connection portion 13 j. In the present embodiment, the connecting portion 13 j is configured such that the first belt 18 and the second belt 19 are in a state in which the bottom first end 13 a and the bottom second end 13 b are in contact with each other from the reference state shown in FIG. It is formed by tying It should be noted that connection of the bottom first end 13a and the bottom second end 13b is not limited to the state where the bottom first end 13a and the bottom second end 13b are in contact with each other, but also the bottom first end 13a and Also included is a state where the base second end 13b is in close proximity (a little apart) and can not be further separated via a belt or the like. The storage bag 1 is overlapped from the bottom first end 13a from the bottom first end 13a in a state where the bottom first end 13a and the bottom second end 13b are connected as shown in FIG. 1B and the bottom 13 is annular. It is possible to obtain an aspect shown in FIG. 1A by causing the side portion 15 side of the connection portion 13 j to get over the portion of the bottom 13 up to the end. Here, the overlapping target point 13p is a point on the base 13 which is separated from the base first end 13a by a predetermined distance D. The predetermined distance D is a distance by which a part of the bottom side 13 passes through the connection portion 13j to the extent that a desired cylindrical shape is formed when the storage item S is stored in the storage bag 1 and made to stand by itself. In the configuration, the length of the base 13 is half the length (1/2), but the length of the base 13 is 1/4, 1/3, 2/5, 3/5, 2/3, 3 It can be determined appropriately, such as / 4.

  Next, with reference to FIG. 3 together, an example of a method of manufacturing the storage bag 1 will be described. FIG. 3 is a plan view showing the procedure for manufacturing the storage bag 1. In the following description, when referring to the configuration of the storage bag 1, FIGS. 1 and 2 will be referred to as appropriate. In the example of this manufacturing method, first, the reference intermediate 1A is spread with the first sheet portion 11 up (bag providing step, see FIG. 3A). Next, while folding the first sheet portion 11 inward so that the side portion 15 on the side of the bottom second end 13 b is superimposed on the outer surface of the first sheet portion 11, the bottom second end 13 b is superimposed on the target point 13 p (Refer to the overlapping step, FIG. 3 (B)). At this time, the side portions 15 are substantially parallel to each other, and the bag body is a rectangle having an aspect ratio larger than that of the reference intermediate 1A. After the overlapping step, the second sheet portion 12 continuing to the side portion 15 on the side of the first bottom edge 13 a is arranged to cover the side portion 15 on the side of the second bottom edge 13 b with the first sheet portion 11. The bag body is folded as shown in the table, and the bottom second end 13b is overlapped with the overlapping target point 13p by the portion of the bottom 13 from the bottom first end 13a to the overlapping target point 13p (the bottom 13 of the predetermined distance D). (Covering process, see FIG. 3 (C)). Next, while the second sheet portion 12 is folded inward so that the side portion 15 on the side of the bottom first end 13a overlaps the outer surface of the second sheet portion 12, the bottom first end 13a is placed on the bottom second end 13b. It is made to approach (approach process, see FIG. 3 (D)). The direction in which the bag is folded back in the approach step is the same as the direction in which the bag is folded in the stacking step, from the bottom to the top on the sheet of FIG. For convenience, the bag body at the stage where the access process is completed is referred to as an immediately preceding intermediate 1D. FIG. 4 shows a partial perspective view of the immediately preceding intermediate 1D. After the approaching step, although not shown, the first bottom edge 13a and the second bottom edge 13b are connected by connecting the first belt 18 and the second belt 19 (connection step). The storage bag 1 is manufactured by completing the connection process. Since the bottom 13 of the storage bag 1 manufactured in this manner intersects the connecting portion 13j and the overlapping target point 13p, the opening 1h is opened and the container S is entirely formed into a cylindrical shape. The bottom is stable and can stand independently.

  When the storage bag 1 is manufactured according to the manufacturing method shown in FIG. 3, sewing is performed only when manufacturing the reference intermediate 1A. In addition, the sewing method when manufacturing the reference intermediate 1A can be simplified and sewing errors are made. Since the storage bag 1 can be manufactured only by folding the reference intermediate 1A and connecting the two belts 18 and 19, simplification of sewing and simplification of the manufacturing method of the storage bag 1 are possible. In combination, the manufacturing cost can be reduced, and the number of production per unit time can be increased (productivity can be improved). In the manufacturing method shown in FIG. 3, the connecting step may be performed at the site where the storage bag 1 is used, by placing it in the distribution process in the state of the intermediate 1 D just before the step of approaching. That is, the connection process may be performed at a different place from the place where the approach process is performed. The immediately preceding intermediate 1D has the advantage of being easy to handle in storage and distribution processes before use. In addition, the storage bag 1 is not limited to the manufacturing method shown in FIG. 3, but as described above, from the state of the reference intermediate 1A, the bottom first end 13a and the bottom second end as shown in FIG. It may be made to be produced by moving the portion of the base 13 of the predetermined distance D to the side portion 15 side with respect to the connection portion 13 j after connecting with 13 b.

  As described above, according to the storage bag 1 according to the present embodiment, when the storage item S is stored, the periphery of the bottom side 13 is not elongated and the occurrence of a protrusion in the lower lateral direction is avoided. Therefore, it becomes cylindrical from the periphery (bottom) of the bottom 13 toward the opening 1 h, and can have a stable self-standing while having a simple configuration. For this reason, when there are a plurality of storage bags 1 storing the storage items S, vertical stacking can be facilitated rather than horizontal stacking. Moreover, according to the manufacturing method of the storage bag 1 which concerns on this Embodiment, the above-mentioned storage bag 1 or just-before-intermediate 1D can be manufactured simply.

  As in the reference intermediate 1F according to the modification shown in FIG. 5, a ring 13r for fixing the first belt 18 and / or the second belt 19 is provided at the overlapping target point 13p, and the overlapping target point 13p and The first belt 18 and / or the second belt 19 may be fixed to the ring 13r when crossing the connecting portion 13j (see FIG. 1). In this way, when the contents S are stored in the storage bag, the shape of the bottom of the storage bag can be stabilized. The ring 13r can be formed of a belt, a tape, a rope, a cord, a thick and strong thread or the like.

  In the above description, although the first bottom end 13a and the second bottom end 13b are connected by connecting the first belt 18 and the second belt 19, sewing, pressure bonding (including heat welding), etc. The bottom first end 13a and the bottom second end 13b may be connected, and in this case, the first belt 18 and the second belt 19 may not be provided (may be omitted).

  In the above description, although the storage bag 1 or the reference intermediate 1A is composed of the first sheet portion 11 and the second sheet portion 12, the first sheet portion 11 in the base 13 or in the vicinity of the base 13 Alternatively, the second sheet portion 12 may be provided with a discharge port forming cylinder that discharges the contents S stored in the storage bag 1. The discharge port forming cylinder may be formed of the same material as the first sheet portion 11 and the second sheet portion 12, and when not used, it may be rolled or folded and stored so as to be sandwiched between the connection portion 13j and the overlapping target point 13p. Good.

DESCRIPTION OF SYMBOLS 1 accommodation bag 1h opening part 11 1st sheet part 11e 1st sheet end side 12 2nd sheet part 12e 2nd sheet end side 13 bottom side 13a bottom side 1st end 13b bottom side 2nd end 13j connection part 15 side side part S

Claims (3)

A flexible storage bag having an opening through which the storage object can be inserted and removed;
A first sheet portion that constitutes a part of the storage bag;
A second sheet portion in contact with the inner side of the first sheet portion in the reference state in a state where the inner space of the bag body in which the storage object is not stored is crushed;
In the reference state, an end side of the first sheet portion and an end side of the second sheet portion are continuously connected at a position facing the opening to form a bottom side;
In the reference state, an end portion of the first sheet portion and an end portion of the second sheet portion are continuously connected at a side portion between the opening portion and the bottom side;
A base first end which is one end of the base and a base second end which is the other end of the base are connected;
A portion of the annular base formed by the connection of the base first end and the base second end from the base first end to a predetermined distance is a part of the base first end and the base first end. The part connected to the two ends is configured to cross over the part where the first base end and the second base end are connected and the base crosses over the side part side;
Containment bag. It is a bag body in which the opening part which can carry in and out an accommodation target thing was formed, and the 2nd sheet part which contacts the inside of the 1st sheet part which constitutes a part of the above-mentioned bag body, and the inside of the 1st sheet part And a sheet portion, and in a reference state in which the inner space of the bag body in which the storage object is not accommodated is crushed, the end side of the first sheet portion and the first sheet portion at a position facing the opening portion Providing a flexible bag having a bottom side formed by continuously connecting the end sides of the second sheet portion;
In the reference state, a second base end which is the other end of the base is placed on an overlapping target point which is a portion of the base which is a predetermined distance away from the base first end which is one end of the base. Stacking process;
Covering the second base end superimposed on the overlap target point by the base from the first base end to the predetermined distance;
After the covering step, when the second base side is overlapped in the overlapping step, the base side from the base first end to the predetermined distance is folded back in the same direction as the direction in which the base is folded back. And approaching the first end to the bottom second end;
How to make a containing bag. Providing a connecting step of connecting the bottom first end and the bottom second end which are close to each other in the approaching step;
The manufacturing method of the storage bag of Claim 2.

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