JPH021753B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field to which the Invention Pertains] The present invention includes a shape-retaining support member that is suitably used for transporting powder and granular materials formed into a cubic shape by a flexible sheet member. Regarding transportation bags.

[Prior art and its problems]

Conventionally, as transportation bags for powder and granular materials, for example,
A relatively long bag body is formed from a flexible sheet material such as synthetic rubber or tarpaulin, and a filling port and a discharge port for materials such as powder or granules are provided on the top and bottom surfaces of the bag body, respectively, so that they can be opened and closed. Transport bags are widely used.

However, when a transportation bag made of such a flexible sheet member is filled with materials, the lower side of the bag body bulges outward, making it difficult to maintain its regular shape, which reduces loading efficiency during transportation. However, there are drawbacks such as a decrease in the amount of water and an increase in transportation costs, and the fact that it is easily torn by sharp objects such as nails or knives, resulting in the contents leaking out. Therefore, as a means to overcome such problems, for example, a constriction part is provided on the side of the bag body to improve shaping properties, and the flexible sheet member that makes up the bag body is formed in double layers. Various improvements have been made, such as inserting a net or inserting a net for reinforcement, but in these cases, not only do manufacturing costs increase, but folding when not in use is troublesome, making handling inconvenient.

[Purpose of the invention]

An object of the present invention is to arrange reinforcing plates for preventing deformation on at least two opposing sides of the outer surface of a cube-shaped transportation bag so as to improve shape retention and strength of the transportation bag when filling with materials. To provide a transportation bag that can be manufactured at low cost and is equipped with a shape-retaining support member that can improve safety and is convenient to handle during transportation.

[Key points of the invention]

In order to achieve the above object, the transportation bag equipped with the shape-retaining support member of the present invention uses a flexible sheet member to form a cube-shaped bag body, and has a shape-retaining support member on the top and bottom surfaces of the bag body. The transport bag is provided with a material filling port and a material discharge port and is configured to be openable and closable, and is characterized in that a reinforcing plate is provided that is closely fixed to at least one set of opposing side surfaces of the bag body.

In this case, manufacturing costs can be reduced by using plywood of a predetermined thickness as the reinforcing plate.

In the above-mentioned transport bag, it is possible to provide a pocket section with a double structure of flexible sheet members on the side surface of the bag main body, and to store and fix the reinforcing plate in this pocket section.

Further, it is also possible to provide a support plate in which a reinforcing plate is housed and fixed to extend from the bottom side edge of the bag body, and to tighten and fix these support plates to each other on the top surface of the bag body.

Furthermore, as an alternative, a support piece made of a flexible sheet member is extended to one side edge of the bottom surface of the bag body, and a support plate in which a reinforcing plate is housed and fixed is extended to both side edges of this support piece, It is also possible to configure these support pieces and support plates to be tightened and fixed to each other on the outer surface of the bag body.

[Embodiments of the invention]

Next, embodiments of a transport bag equipped with a shape-retaining support member according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an embodiment of a transportation bag according to the present invention. That is, in the embodiment shown in FIG. 1, reference numeral 10 indicates a bag body made of a flexible sheet member such as synthetic rubber or tarpaulin;
A filling port 16 and a discharge port 18 are provided on the top surface 12 and bottom surface 14 of the bag body 10, respectively, so as to be openable and closable for supplying and discharging materials such as powder and granules. Note that engagement members 20 for suspending the bag body 10 are attached to each side surface and corner portion of the bag body 10 via force bands 22 and 24, respectively. However, in this embodiment, a pair of opposing side surfaces 26 and 28 of the bag main body are made up of two layers of flexible sheet members to form a pocket section, and there is a pocket section inside these pocket sections, for example, which is easily curved. A reinforcing plate 30 made of plywood or the like having a thickness that does not deform.
Place them in their respective storage locations. In this case, each side part 2
The openings of the pockets 6 and 28 are located in the bag body 10.
Either the top surface 12 side or the bottom surface 14 side may be used, and it is also possible to open and close the reinforcing plate 30 freely, or to seal it by welding or sewing after storing the reinforcing plate 30.

The transportation bag constructed in this way can facilitate the material filling operation by allowing the transportation bag to stand up when filling with material due to the action of the reinforcing plate, and can also strengthen the shape retention of the transportation bag after filling with the material. can. In the embodiment shown in FIG. 1, pockets are provided on all outer sides of the transport bag, and reinforcing plates 30 are housed in a pair of opposing sides or all sides as necessary. It may be configured as follows.

FIG. 2 shows another embodiment of the transport bag according to the present invention. That is, in this embodiment, at least one set of opposing side edges of the bottom surface 14 of the bag body 10 is provided with a support plate 32 that covers the reinforcing plate 30 with a flexible sheet member made of the same material as the bag body 10;
34 are integrally extended. Incidentally, fasteners 36 and 38 are provided at the outer ends of the support plates 32 and 34 for mutually tightening and holding the top surface 12 of the bag body 10.

The transport bag configured in this way has the support plates 32 and 34 erected when filling the material, and these are attached to the bag body 1.
0 and the top surface 1.
By connecting the fasteners 36 and 38 in step 2, it is possible to strengthen the shape retention of the transport bag, just as in the previous embodiment. In the embodiment shown in FIG. 2, support plates having the same structure may also be provided, for example, in the portions indicated by broken lines so that the reinforcing plates are in contact with the entire outer surface of the transport bag.

FIG. 3 shows yet another embodiment of the transport bag according to the present invention. That is, in this embodiment, a support piece 40 made of a flexible sheet member made of the same material as the bag body 10 is extended from one side edge of the bottom surface 14 of the bag body 10, and furthermore, both sides of this support piece 40 are provided. It has a structure in which supporting plates 42 and 44 each having a reinforcing plate 30 covered with the flexible sheet member are connected to each other at the edges thereof. In addition, at the outer ends of the support plates 42 and 44,
Fasteners 36 and 38 are provided on one side of the bag body 10 for tightly holding the bag body 10 together.

In the transport bag constructed in this manner, the support piece 40 is made to stand up when filling with material, and the support pieces 42 and 44 connected thereto are attached to each side surface portion 26 and 28 of the bag body 10.
By encircling and abutting the bag and connecting them with each other using fasteners 36 and 38, the shape retention of the transport bag can be strengthened, just as in the previous embodiment. In the embodiment shown in FIG. 3, supporting pieces or plates having the same structure are extended to the portions indicated by broken lines, for example, so that the supporting pieces or plates are in contact with the entire outer surface of the transport bag. Good too.

〔Effect of the invention〕

As is clear from the various embodiments described above, according to the transportation bag equipped with the shape-retaining support member according to the present invention, the reinforcing plate is tightly attached to at least one set of opposing side surfaces of the cube-shaped transportation bag. By fixing, it is possible to easily and inexpensively strengthen the shape retention and improve the strength of the transport bag. In particular, since the reinforcing plate can be easily attached and placed on the outer surface of the transport bag, the transport bag can have the simplest structure without internal reinforcement, and it is also easy to fold the transport bag after use. This method has many advantages, such as being able to manufacture transport bags suitable for streamlining transport operations at low cost.

Although the preferred embodiments of the present invention have been described above, it goes without saying that various design changes can be made without departing from the spirit of the present invention.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing one embodiment of a transport bag equipped with a shape-retaining support member according to the present invention, FIG. 2 is a perspective view showing another embodiment of the transport bag according to the present invention, and FIG. FIG. 2 is a perspective view showing still another embodiment of the transport bag according to the present invention. 10...Bag body, 12...Top surface, 14...Bottom surface, 16
...filling port, 18...discharge port, 20...engaging member, 2
2, 24... Force band, 26, 28... Side part, 30... Reinforcement plate, 32, 34... Support plate, 36, 38... Fastener, 40... Support piece, 42, 44... Support plate.

Claims (1)

[Claims] 1. A cube-shaped bag body is formed using a flexible sheet member, and material filling and discharge ports are provided on the top and bottom surfaces of the bag body so that these can be opened and closed. 1. A transport bag equipped with a shape-retaining support member, characterized in that a reinforcing plate is provided that is closely fixed to at least one set of opposing side surfaces of a bag main body. 2. The transportation bag according to claim 1, wherein the reinforcing plate is provided with a shape-retaining support member made of plywood having a predetermined thickness. 3. In the transportation bag according to claim 1, a pocket section is provided on the side surface of the bag main body with a double structure of flexible sheet members, and a reinforcing plate is housed and fixed in the pocket section. transport bag with supporting members for use. 4. In the transportation bag as set forth in claim 1, a support plate in which a reinforcing plate is housed and fixed is extended from the bottom side edge of the bag body, and these support plates are tightened and fixed to each other on the top surface of the bag body. A transport bag equipped with a shape-retaining support member configured to do so. 5. In the transport bag according to claim 1, a support piece made of a flexible sheet member is extended from one side edge of the bottom surface of the bag body, and reinforcing plates are further housed at both side edges of this support piece. A transport bag equipped with a shape-retaining support member configured to extend a fixed support plate and tighten and fix these support pieces and the support plate to each other on the outer surface of the bag body.