JP3122365U - Flexible container bag - Google Patents

Abstract

An object of the present invention is to provide a container bag that can stand up in use and can be easily folded.
SOLUTION: A bag body portion 6 having four rectangular side wall portions 4 and having a rectangular box shape when unfolded is provided, and three side wall portions 4 are respectively provided with two rod members 9 and 9 having elasticity. However, one rod member 9 has one end attached to the upper right corner of the side wall 4 and the other end is bent. Attached to the lower right corner of the side wall 4, the central part in the length direction is arranged near the central part of the side wall 4, and one end of the other rod member 9 is attached to the upper left corner of the side wall 4. A flexible container bag B that is attached, the other end is attached to the lower left corner of the side wall 4, and the center in the length direction is disposed near the center of the side wall 4.
[Selection] Figure 2

Description

  The present invention relates to a flexible container bag, and more particularly to a flexible container bag that can be self-supporting during use.

  A flexible container bag (hereinafter abbreviated as “container bag”) is a large bag formed so that the bag body is flexible with a woven fabric or sheet made of plastic or the like. The bag can be folded and carried, and when used, the bag body is unfolded to receive various items from the upper opening, and loaded into a vehicle or the like for transportation.

  A container bag is difficult to stand on its own because the bag body has flexibility, and when used, a rack (frame body) is assembled and placed in the unfolded state, and the upper end of the bag body Installation was not easy because the four corners had to be erected by connecting them to the rack with strings or the like.

In order to solve such a problem, there is a container bag shown in the following Patent Document 1 that can stand by itself when deployed.
Japanese Patent Laid-Open No. 11-180488

  However, the container bag shown in Patent Document 1 is attached to the bag body with the arc-shaped rod extending to the adjacent side wall portion (see FIGS. 1 to 3 of Patent Document 1), so that the container bag is folded. A force that twists the arc-shaped rod must be applied, and there is a problem that folding is not easy. In addition, in the container bag shown by patent document 1, four surfaces of the bag main body divided by the line extended in the up-down direction from the cross | intersection part of an arc-shaped rod can be said to be a side wall part, respectively.

  The present invention solves the above-described problems, and an object thereof is to provide a container bag that can be self-supported during use and can be easily folded.

  The flexible container bag of the present invention has a flexible bag main body portion, and the bag main body portion includes four rectangular side wall portions, and forms a rectangular box shape when unfolded. Two bar members having elasticity are arranged on at least two side walls facing each other in a state of being bent in an arc shape without extending to adjacent side walls, and the two side walls In each of the parts, one of the two bar members has one end attached to the upper right corner of the side wall and the other end attached to the lower right corner of the side wall. The central part in the length direction is arranged near the central part of the side wall part, and the other rod member is attached to the upper left corner part of the side wall part and the other end part is attached to the lower left corner part of the side wall part. And the central portion in the length direction is disposed near the central portion of the side wall portion.“Near the center” includes “the center”.

  According to this, since each bar member tries to return to a straight line due to its elasticity, each of the two opposing side wall portions is pulled between the upper right corner portion and the lower right corner portion, and the upper left corner portion and the lower left corner portion. It will be pulled between parts and it will be easy to maintain a deployment state. For this reason, it becomes easy for a bag main-body part to maintain an unfolded state, and it becomes possible to become independent. In addition, since each bar member is arranged without reaching the adjacent side wall portion, it is not necessary to apply a force to twist the bar member during folding, and it is easy to fold.

  Here, the two bar members are disposed on one side wall portion other than the two side wall portions as in the case of the two side wall portions, and the two bar members are disposed on the remaining side wall portions. It is preferable that it is not disposed.

  According to this, since the side wall portions other than the two opposing side wall portions are easily maintained in the expanded state by the bar member, the bag main body portion is further easily maintained in the expanded state, and can be easily self-supported. Moreover, since each bar member does not reach the adjacent side wall portion, it can be easily folded. Further, if the remaining side wall portion on which the bar member is not disposed is folded so as to be on the outer side, the remaining side wall portion is highly flexible, so that the folding is further facilitated.

  According to the flexible container bag of the present invention, not only can it stand alone when unfolded, but it can be easily folded.

  Hereinafter, the container bag B which concerns on one Embodiment of this invention is demonstrated based on drawing.

  As shown in FIGS. 1 and 2, the container bag B is attached to the bag main body portion 6, the expansion portion 1 connected to the upper end portion of the bag main body portion 6 by sewing, and the bag main body portion 6 by sewing. Two suspended belts 3 and 3 are provided. In addition, since both the expansion part 1 and the suspension belts 3 and 3 have flexibility, they do not stand independently as shown in FIGS. However, in FIG.1 and FIG.2, the state extended upward is shown in order to make description easy.

  The bag body 6 has flexibility by being formed of polypropylene cloth or the like, and has a rectangular bottom wall 10 (see FIG. 3) and four rectangular side walls 4a. 4b, 4c, and 4d, and is configured to have a rectangular box shape opened upward during development. When there is no need for distinction, the side wall portions 4a, 4b, 4c, and 4d are all expressed as the side wall portion 4.

  As shown in FIG. 3, the side wall part 4a, the bottom wall part 10, and the side wall part 4c are integrally formed of one cloth, and the side wall parts 4b and 4d are formed of different cloths, respectively. And the bottom wall part 10, the side wall part 4b and the side wall part 4a, the side wall part 4b and the side wall part 4c, the side wall part 4d and the bottom wall part 10, the side wall part 4d and the side wall part 4a, and the side wall part 4d and the side wall part 4c, respectively. The bag body 6 is formed by wearing.

  The expanding portion 1 is made of polyethylene cloth or the like, so that it has flexibility, and as shown in FIGS. 1 and 2, a trapezoidal cylindrical shape whose upper end portion is wider than the lower end portion when deployed. It is comprised so that it may make. A binding tape 2 formed of a polypropylene cloth or the like is sewn on the expanded portion 1.

  Each suspension belt 3 has flexibility by being formed of a polypropylene cloth or the like. One suspension belt 3 is attached to the side wall portion 4a, and the other suspension belt 3 is It is attached to the side wall part 4c facing the side wall part 4a.

  On the side wall portions 4b and 4d and the side wall portion 4c facing each other, two rod members 9 and 9 having elasticity are arranged in a state of being bent in an arc shape.

  Each bar member 9 is made of glass fiber (glass fiber reinforced plastic) and originally formed in a straight line shape, and is arranged in a state of being bent in an arc shape. Therefore, each bar member 9 is formed in a straight line shape. Has an elastic force to return.

  In the side wall 4b, one rod member 9 has one end attached to the upper right corner of the side wall 4b and the other end attached to the lower right corner of the side wall 4b. Is disposed near the center of the side wall 4b, and the other rod member 9 has one end attached to the upper left corner of the side wall 4b and the other end attached to the lower left corner of the side wall 4b. The central part in the length direction is arranged near the central part of the side wall part 4b. That is, the bar members 9 and 9 are disposed so as to be opposed to each other when the side wall portion 4b is unfolded. Moreover, the bar members 9 and 9 are arrange | positioned without reaching the adjacent side wall parts 4a and 4c.

  Specifically, as shown in FIGS. 4 (a) and 4 (b), insertion tubes 7 made of polyvinyl chloride are respectively attached to the upper right corner and the lower right corner of the side wall 4b. The insertion tube 7 is attached by sewing the end portion of the insertion tube 7 to the side wall portion 4b simultaneously with the sewing of the side wall portion 4b and the side wall portion 4c. The side wall portion 4b and the side wall portion 4c are sewn with their end portions overlapped as shown in FIG. Similarly, the insertion tubes 7 are respectively attached to the upper left corner and the lower left corner of the side wall 4b. One of the rod members 9 is disposed on the substantially right half of the side wall 4b by inserting one end into the insertion tube 7 at the upper right corner and the other end into the insertion tube 7 at the lower right corner. The other rod member 9 is disposed on the substantially left half of the side wall 4b by inserting one end into the insertion tube 7 at the upper left corner and the other end into the insertion tube 7 at the lower left corner. Yes.

  Further, as shown in FIG. 6A, the central part of the bar members 9, 9 is arranged in the vicinity of the central part of the side wall part 4 b by the stopper tape 8. As shown in FIG. 6 (b), the slip prevention tape 8 is sewn to the side wall 4b with a space between the bar members 9, 9 so as not to hinder the movement of the bar members 9, 9. Has been.

  The bar members 9 and 9 are attached to the side wall portions 4c and 4d via the insertion tube 7 and the slip prevention tape 8, respectively, similarly to the side wall portion 4b.

  That is, in the side wall 4c, one rod member 9 has one end attached to the upper right corner of the side wall 4c and the other end attached to the lower right corner of the side wall 4c. The other rod member 9 has one end attached to the upper left corner of the side wall 4c and the other end attached to the lower left corner of the side wall 4c. The central part in the length direction is disposed near the central part of the side wall part 4c.

  In the side wall 4d, one rod member 9 has one end attached to the upper right corner of the side wall 4d and the other end attached to the lower right corner of the side wall 4d. The other rod member 9 has one end attached to the upper left corner of the side wall 4d and the other end attached to the lower left corner of the side wall 4d. Thus, the central part in the length direction is arranged near the central part of the side wall part 4d.

  Further, the bar member 9 is not disposed on the side wall 4a, and a pocket 5 formed of polyethylene cloth or the like is sewn.

  Next, the operation of the container bag B configured as described above will be described.

  When using the container bag B, as shown in FIG.1 and FIG.2, the bag main-body part 6 is expand | deployed by expand | deploying the low wall part 10 and side wall part 4a, 4b, 4c, 4d. At this time, since each bar member 9 tends to return to a straight line due to its elasticity, the side wall portions 4b, 4c, and 4d on which the bar members 9 and 9 are disposed are respectively located between the upper right corner and the lower right corner. While being pulled, the space between the upper left corner and the lower left corner is pulled. That is, since the side walls 4b, 4c, and 4d are given a force (expansion force) to spread by the bar members 9 and 9, the side walls 4b, 4c, and 4d are easily maintained in the expanded state. For this reason, the bag main-body part 6 is easy to maintain an unfolded state, and can be independent.

  After the bag body 6 is unfolded and made independent, the spreader 1 is pulled out from the bag body 6 and folded back to the outside of the bag body 6 at the connecting portion with the bag body 6. Then, the contents are accommodated in the bag body 6 from the opening 11 of the bag body 6.

  When the accommodation is completed, the expansion portion 1 is squeezed and tied with the tape 2 as shown in FIG. 7, and the opening 11 of the bag body 6 is closed. Then, the container bag B is lifted by hanging the suspension belts 3 and 3 with a crane or the like and loaded on a vehicle or the like.

  On the other hand, when the container bag B is folded when not in use, as shown in FIG. 8 (a), the expanding portion 1 and the hanging tapes 3 and 3 are accommodated in the bag body portion 6, and the side wall portion 4b, 4c and 4d are folded in two so as to be folded inward along vertical lines passing through the central portions of the side walls 4b, 4c and 4d, respectively. Then, as shown in FIG.8 (b), the container bag B is folded into two by the side wall part 4a becoming an outer side.

  Thus, since the container bag B is folded so that the lateral width of the side wall portion 4 is halved, it is compact and easy to carry.

  In addition, since each bar member 9 is disposed without reaching the adjacent side wall portion 4, it is not necessary to apply a force for twisting the bar member 9 during folding, and it is easy to fold.

  In addition, in each of the side wall portions 4b, 4c, and 4d, one of the rod members 9 has one end portion attached to the upper right corner portion of the side wall portion and the other end portion attached to the lower right corner portion of the side wall portion. The other rod member 9 has one end attached to the upper left corner of the side wall and the other end attached to the lower left corner of the side wall. The central part in the length direction is arranged near the central part of the side wall part. That is, one rod member 9 is disposed in the substantially right half of the side wall portion 4 and the other rod member 9 is disposed in the substantially left half of the side wall portion 4. When folding in half, the rod members 9 and 9 do not get in the way, and the rod members 9 and 9 need only be folded in half. When the rod members 9 and 9 are folded in half In order to serve as a guide, the container bag 6 can be easily folded from this point.

  The side wall portion 4a is not provided with the bar member 9. That is, since no deployment force is applied, the flexibility is large. For this reason, if it folds with the side wall part 4a outside, folding will be easier.

  If the ease of deployment is more important than the ease of folding, the bar members 9, 9 may be disposed on the side wall 4a in the same manner as the side wall 4b.

  Moreover, in the said embodiment, although the bar members 9 and 9 were arrange | positioned at the three side wall parts 4b, 4c, and 4d, the bar members 9 and 9 are arrange | positioned only at the two side wall parts 4b and 4d which oppose. It is good. If it does so, the bag main-body part 6 will become independent by the expansion | deployment force provided to the side wall parts 4b and 4d. However, as in the above-described embodiment, the bag body 6 is more stable and independent when the rod members 9 are disposed on the three side walls 4b, 4c, and 4d.

  The material of the bar member 9 is not limited to glass fiber, and may be other fiber reinforced plastic such as carbon fiber, non-fiber reinforced plastic, metal, bamboo, or the like. In short, any member can be used as long as the rod member 9 can be configured so as to generate an elastic force in a direction of returning to a linear shape when bent in an arc shape.

  The material of the bag body 6 is not limited to polypropylene, but may be other chemical fibers such as polyester or natural fibers such as cotton, and the bag body 6 is made of a sheet that is not a woven fabric. Also good. In short, the material of the bag body portion 6 may be any material that can be configured so that the bag body portion 6 has flexibility.

  Moreover, the attachment method of the rod member 9 is not limited to the one using the insertion tube 7 and the stopper tape 8 described above. For example, instead of the stopper tape 8, a tube through which two rod members 9 can be inserted is used. It is good also as inserting and using the center part of the bar members 9 and 9 for this tube. At this time, it is not necessary to attach the tube to the side wall portion 4 if the rod members 9, 9 fit tightly in the tube and there is no risk that the tube is displaced from the arrangement position of the rod members 9, 9.

  Moreover, in the said embodiment, although the bar member 9 was arrange | positioned in the outer surface side of the side wall part 4, you may arrange | position the bar member 9 in the inner surface side of the side wall part 4, and the side wall part 4 is a double wall. In the case where it is configured by laminating a plurality of wall portions, such as the case of the above, it may be disposed inside the side wall portion 4.

  That is, the present invention can take various configurations without departing from the scope of the utility model registration request.

It is a perspective view of a container bag concerning one embodiment of the present invention. It is the perspective view of the same container bag seen from the opposite side to FIG. It is a general | schematic expanded view of the container bag which abbreviate | omitted the expansion part. (A) is an upper right corner part of a side wall part, (b) is an enlarged view of the lower right corner part of a side wall part. It is a schematic sectional drawing for demonstrating the method of sewing of side wall parts. (A) is an enlarged view of the center part of a side wall part, (b) is bb site | part sectional drawing of (a). It is a perspective view of the container bag of the state where the expansion part was closed. (A) is a figure which shows the middle of folding the container bag, (b) is a figure which shows the state which folded the container bag.

Explanation of symbols

4, 4a, 4b, 4c, 4d ... side wall part 6 ... bag main body part 9 ... bar member B ... container bag

Claims (2)

Having a flexible bag body,
The bag main body portion includes four rectangular side wall portions and forms a rectangular box shape when deployed,
Two bar members having elasticity are arranged on at least two of the four side wall portions facing each other in a state of being bent in an arc shape without reaching the adjacent side wall portions. ,
In each of the two side walls, one of the two bar members has one end attached to the upper right corner of the side wall and the other end attached to the lower right corner of the side wall. Attached, the central portion in the length direction is disposed near the central portion of the side wall, and the other rod member has one end attached to the upper left corner of the side wall and the other end is the lower left corner of the side wall. A flexible container bag, characterized in that the central part in the length direction is disposed near the central part of the side wall part.   Similarly to the two side wall portions, the two bar members are disposed on one side wall portion other than the two side wall portions, and the two bar members are disposed on the remaining side wall portions. The flexible container bag according to claim 1, wherein the flexible container bag is not.

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