JPH0323438B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention relates to an inner bag support device for storing bulk materials, and more particularly to a container for storing powdery materials such as feed, medicine, etc., or granular materials such as resin, grain, etc. The present invention relates to a device for supporting a flexible film inner bag for directly storing bulk goods during transportation using a rigid container such as a rigid container.

(Prior art) Conventionally, as a device for transporting the above-mentioned bulk cargo using a rigid container such as a container,
The one disclosed in Japanese Patent No. 56-115282 is known. In the invention disclosed in this publication, an inner bag made of a flexible film is placed inside a container to accommodate bulk cargo, and at that time, the inner bag is opened at one end of the container to prevent it from popping out from the opening at one end of the container. An arch-shaped support cross or bulkhead is placed on the side of the container, and the bulkhead is supported by a belt that has one end fixed at and near both ends of the bulkhead and the other end connected to the inner wall of the container on the side opposite to the opening. It was composed of.

(Problem to be Solved by the Invention) However, in conventional bulk cargo transportation devices, the end of the container opposite to the opening is lifted and tilted, and the bulk material is released by natural flow from the outlet of the inner bag and bulkhead. During unloading, the inner bag slides down to the container opening along with the bulk material during the latter half of unloading the bulk material, and as a result, many gathering areas are created on the bottom of the inner bag, causing the bulk material to stagnate in these areas. As a result, the flow phenomenon of the bulk material became extremely poor, and there were cases where the bulk material was not completely discharged and some remained.

Therefore, in order to solve this problem, we laid a bottom cloth on the floor of the container and partially attached the bottom of the inner bag and the bottom cloth with adhesive to prevent it from sliding downward when the container is tilted. devised. However, in addition to the pulling force on the inner bag when the bulk cargo is discharged, that is, the frictional force that accompanies the falling of the bulk cargo, which acts to pull the inner bag down toward the container opening side, the rear upper part of the inner bag is There is a force that pulls the inner bag forward as the bulk material is discharged (pull force), and this force can tear off the adhesive between the rear bottom surface of the inner bag and the bottom cloth. It became clear.

The purpose of the present invention was to solve the problems of such technology, and to prevent the inner bag from slipping down when discharging bulk cargo by tilting the container, and without causing damage to the inner bag. An object of the present invention is to provide an inner bag support device for storing bulk goods that supports the bottom surface of the inner bag in a stretched state.

(Means for Solving the Problems) The present invention is a device that is installed in a container having an entrance/exit on the front side, which is one end surface, and supports an inner bag for storing bulk goods made of a flexible film. a bulk head made of a flexible woven fabric and stretched upright on the entrance/exit side of the container; a bottom cloth made of a flexible woven fabric placed on the floor of the container and connected to the lower end of the bulk head; an adhesive for at least partially adhering the inner bag for storing bulk goods placed on the bottom cloth to the bottom cloth;
a flexible inner bag rear support that stands up on the rear side of the bulk storage inner bag and is bonded to the rear surface of the inner bag and connected to the bottom cloth; and a rear end of the bottom cross that is connected to the bottom cloth. and a plurality of belts extending from the container and fastened to the inner wall of the container.

(Function) According to the bulk cargo storage inner bag support device of the present invention, when the rear side is lifted to discharge the bulk cargo from the container, the bulk cargo inside the inner bag is pushed toward the entrance/exit side of the container, but the inner bag is pushed toward the bulkhead. I can lean over and be supported. Although the bottom of the inner bag is sloping during the first half of the time when the bulk material is being discharged, it is completely filled with a large amount of bulk material, so that the pressing force does not cause it to slip down. However, when the bulk material is discharged in the second half,
As the upper part of the inner bag begins to hang down from the rear side of the lifted container and fall forward, tension due to the forward hanging of the upper part of the bag is applied to the rear end edge of the bottom of the inner bag, which has begun to be exposed. However, a flexible inner bag rear support is glued to the rear end surface of the inner bag, and the inner bag rear support is connected to the bottom cross, while the bottom cross is connected to the bottom cross by a fastening belt. Since the ends are fixed to the inner wall of the container, the inner bag rear support is bent near the rear end of the bottom cloth and oriented in the direction of tension of the inner bag. Therefore, the adhesive surface of the inner bag rear support with the inner bag is always located in the same direction as the wall of the inner bag that extends in the direction of the tensile force, so the tensile force due to the hanging of the upper part of the inner bag is absorbed by the inner bag rear support. It is received by the bottom cloth and does not reach the bottom surface, and the bottom surface is maintained in a stretched state without slipping down due to the bonding with the bottom cloth.

(Example) Hereinafter, the bulk goods storage inner bag support device of the present invention will be described in more detail with reference to preferred embodiments shown in the accompanying drawings.

FIG. 1 shows a bulk cargo storage inner bag support device (hereinafter simply referred to as an inner bag support device) 1 according to an embodiment of the present invention.
0 is shown. Inner bag support device 1 of this embodiment
0 is installed in a container C having an entrance/exit at one end, as shown in FIG. 2, and is made entirely of a flexible woven fabric. That is, the inner bag support device 10 is formed from a cloth woven from polypropylene tape. The inner bag support device 10 made of cloth made of such a material is attached to the floor surface B of the container C.
The bottom cloth 1 has a bottom cross 11 arranged in the bottom cross 1.
1 has almost the same size and shape as the floor surface B of the container C, but the part located on the entrance/exit side of the container C has a short edge 11a and an inclined edge 11 sandwiching the short edge 11a.
b and 11c, and is formed into a trapezoidal shape as a whole.

The inner bag support device 10 further includes inclined edges 11b, 11c and short edges 11a, which are the ends of the bottom cloth 11.
The bulkhead 12 is connected to the lower edge of the bulkhead 12 and stands vertically upward. This bulkhead 12
Reinforcing strips 13a and 13b are fixed to both sides of the container C by sewing, and two strips are attached to the upper and lower ends of the container C to be fastened to hooks E and F provided on the inner wall of the container C, respectively. A book tie string 14 is provided. Furthermore, the bulkhead 12
Two X-shaped belts 15 and 16 arranged diagonally on the surface are firmly fixed by sewing, gluing, or a similar method. In each of these belts 15 and 16, each end portion 15a, 15b, 16a extending from each corner of the support wall portion 12,
The belt 16b is tied to the locking parts E and F on the inner wall of the container C to which the above-mentioned knot string 14 is fastened.
5 and 16 are fastened directly.

Note that two support belts 17,
One end of 18 is fixed, and each support belt 17,
By connecting the other end of 18 to the locking parts G and H provided at the upper and lower parts of the inner wall near the rear end of the container C (the end opposite to the entrance/exit side), as shown in FIG. This gives the bulkhead 12 even greater strength.

As shown in FIG. 3, there are a plurality of locations at the other end, that is, the rear end of the bottom cross 11, where the bottom cross 11 slides out (particularly toward the entrance/exit side of the container C when the container C is tilted during bulk discharge). A fastening belt 19 fastened to a locking portion provided at the rear end of the floor surface B of the container C is firmly attached by sewing or the like to prevent the container C from slipping off. As shown in FIGS. 4 and 5, this fastening belt 19 is made up of two overlapping strips 19a and 19b, and the end thereof extending from the edge of the bottom cloth 11 has a predetermined length. These strips 19a and 19b are separated and tied to a locking portion or the like. The attachment length l of the fastening belt 19 to the bottom cloth 11 is shortened when the bottom cloth 11 itself has high strength as shown in FIG. 3, and lengthened when the strength is low.

Another inner bag rear holding belt 20 is disposed between the fastening belt 19 and the bottom cross 11, and this belt 20 is attached to the bottom cross 11 together with the fastening belt 19.
They are fixed together by sewing etc. This belt 2
0 extends from the rear end of the bottom cloth 11, and a double-sided adhesive tape 21 is attached to the surface of the extended portion 20a. This belt 20 is the fastening belt 19
As shown in FIG. 5, a flexible inner bag D made of synthetic resin, for example, a film such as polyethylene, is placed on the bottom cross 11 as a bag for directly storing bulk goods. When the inner bag is placed on the rear surface of the inner bag D, its extension part 20a stands up on the rear surface of the inner bag D and is strongly fixed to the rear surface of the inner bag D through a double-sided adhesive tape 21, thereby supporting the inner bag D. It is. On the top surface of the bottom cloth 11 is a double-sided adhesive tape 2 for directly fixing the bottom surface of the inner bag D.
2 is attached. This double-sided adhesive tape 2
2 are provided with emphasis on the rear side of the bottom cloth 11, but their position, length, or number can be selected depending on various conditions such as the type or weight of the bulk material. However, as for the position of the double-sided adhesive tape 22, it is preferable to position it on the arrangement line of the fastening belt 19 or on the extension line thereof, since the force of slipping down on the bottom surface of the inner bag D is transmitted to the bottom cloth 11 via the tape 22. .

The inner bag support device 10 configured as described above is stretched inside the container C as shown in FIG. In this specification, the term "container" ranges from an independent type such as a so-called "green container" used by Japan Railway Freight Transportation Company, etc., to a marine container used for sea transportation. It is used to include everything that is fixedly attached to the vehicle body, such as, or freight vehicles such as trucks. Inside the container C in which the inner bag support device 10 is installed, an inner bag D made of a flexible film is arranged, and is fixed to the bottom cloth 11 with an adhesive tape 22, and the rear surface is connected to the extension part of the holding belt 20. 20a. Then, bulk materials are introduced into the inner bag D by air conveyance or a dropping method and loaded thereon.

As the bulk material is introduced, the flexible film inner bag D gradually expands, and the lateral pressure due to the load of the bulk material pushes toward the entrance or opening, which is the only open part of the container C. The downward pressure presses the bottom cross 11 of the inner bag support device 10 against the floor surface B of the container C, and the lateral pressure is supported by the bulkhead 12 being expanded in an arched shape.

When unloading the bulk cargo loaded in this way from the container C at the destination, the opening of the container C is opened and the bulk head 12 of the inner bag support device 10 is opened.
Closing flap 24 of the outlet 23 formed in
is opened and the discharge pipe 25 connected to the opening (not shown) of the inner bag D is pulled out from the discharge port 23, and the bulk material is led out from the discharge pipe 25. After the bulk materials begin to be discharged, the end of the container C opposite to the opening, that is, the rear end, is lifted and tilted by suitable means, thereby increasing the momentum of the bulk materials and passing through the discharge pipe 25. It is then discharged.

As the bulk material is discharged, the upper rear surface of the inner bag hangs down and is pulled forward as the bulk material is discharged, as shown in FIG. As a result, the extended portion 20a, ie, the rising portion, of the inner bag rear surface holding belt 20 is bent so as to approach the inclined bottom cloth 11 while being stretched. Therefore, the extension portion 20 of this belt 20 is in the same plane as the tension direction of the upper hanging portion of the inner bag D (indicated by the arrow 26 in FIG. 6).
The adhesive surface with the rear surface of the inner bag D at a is located. Generally, synthetic resin films are made using adhesives,
In either case, the adhesive has strong adhesion in the shear direction and can support the inner bag, but it has the property of peeling off extremely easily when force is applied in the peeling direction. Therefore, the tensile force on the upper hanging side of the inner bag D would not act as a peeling force if there was no extension part 20a, but by providing the extension part 20a, the attached part is prevented from peeling off, and does not reach the bottom surface of the inner bag D. As a result, the bottom surface of the inner bag D does not peel off from the bottom cloth 11, and the adhesive force of the adhesive tape 22 can be effectively used to bond the two, so that the bottom surface of the inner bag D does not slip off the bottom cloth 11. It can be effectively prevented.

In addition, in the above-mentioned embodiment, the inner bag rear support device is
A flexible inner bag rear retaining belt 20 is clamped between the bottom cloth 11 and the fastening belt 19, and its extended portion 20
A is made to rise upward from the rear end of the bottom cloth 11 and is adhesively supported on the rear surface of the inner bag D. Such an inner bag rear surface support device, as shown in FIG. It may be an extension part 11d that integrally extends and stands up from the rear end. According to such an example, the belt 2 as in the previous embodiment
Since there is no need to manufacture and assemble (sewn) 0, it is somewhat advantageous in terms of productivity.

(Effects of the Invention) As explained above, according to the bulk cargo storage inner bag support device of the present invention, since the rear surface of the inner bag is held by the flexible inner bag rear surface supporter, the rear upper part of the inner bag is The tensile force of the hanging portion does not act as a peeling force on the fixed portion, and as a result, the bottom surface can be kept stretched without peeling off from the bottom cloth. Moreover, according to the bulk goods storage inner bag support device of the present invention, since the entire device is constructed from a flexible belt or cloth, it is extremely lightweight and easy to handle, and it is very easy to store it when not in use.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a bulk goods storage inner bag support device according to an embodiment of the present invention, and FIG. 2 is a perspective view showing the bulk goods storage inner bag support device of FIG. 1 installed in a container. , Fig. 3 is a plan view showing the bottom cross of the bulk goods storage inner bag support device and the fastening belt provided thereon, and Fig. 4 is a plan view showing the belt as an inner bag rear surface support provided at the rear end of the bottom cross and A perspective view with the bottom cross partially cut away to show the fastening belt, Figure 5 is a sectional view taken along line V-V in Figure 4, and Figure 6 is the rear end of the container when discharging bulk cargo. FIG. 7 is a sectional view showing a state in which the bulk goods are discharged by lifting the bag, and FIG. It is a perspective view showing a tool and a fastening belt. DESCRIPTION OF SYMBOLS 10... Bulk storage inner bag support device, 11... Bottom cross, 12... Bulkhead, 19... Fastening belt, 20... Inner bag rear surface holding belt, 20a...
Extension part, 21, 22...Double-sided adhesive tape, C...
Container, D...inner bag.

Claims (1)

[Scope of Claims] 1. A device for supporting an inner bag for storing bulk goods made of a flexible film, which is installed in a container having an entrance/exit on the front side, which is one end surface, and is made of a flexible woven fabric. a bulkhead that is erected and stretched on the entrance/exit side of the container; a bottom cloth made of a flexible woven fabric placed on the floor of the container and connected to the lower end of the bulkhead; and a bottom cloth placed on the bottom cloth. an adhesive for at least partially adhering the inner bag for storing bulk goods to the bottom cloth; and an adhesive material that stands up on the rear side of the inner bag for storing bulk goods and is fixed to the rear surface of the inner bag and connected to the bottom cloth. and a plurality of fastening belts connected to the bottom cloth, extending from the rear end of the bottom cloth, and fastened to the inner wall of the container. Device. 2. The inner bag support for bulk goods storage according to claim 1, wherein the inner bag rear surface support is an extension part that integrally extends and stands up from the rear end of the bottom cloth. Device. 3. Claim 1, characterized in that the inner bag rear surface support comprises an inner bag rear surface holding belt having one end fixed to the bottom cloth and the other end extending from the rear end of the bottom cloth to stand up. Bulk cargo storage inner bag support device as described in 2. 4. Claims 1 and 4, characterized in that the adhesive material is an adhesive or double-sided adhesive tape provided on the bottom cloth along the same arrangement line as the fastening belt or an extension thereof. The bulk cargo storage inner bag support device according to item 2 or 3.