JPS62146182A - inner bag for container - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an inner bag for a container, and more particularly, the present invention relates to an inner bag for a container, and more specifically, it is used to store powdery materials such as feed or granular materials such as grains in a rigid container such as a container. It relates to an interior space that is installed inside the container when it is used and transported.

(Prior Art) Conventionally, powdered materials such as feed or granular materials such as grains are transported while being accommodated in large bags of approximately the same size that are placed and fixed in containers.

To explain in more detail a conventional example of such a means for transporting a container for powder and granular materials, as shown in FIGS.
Metal container 2 with an entrance and exit that can be opened by
and an inner bag 3 placed inside this container 2. The inner bag 3 is made of a woven fabric with a resin stretched tape inserted into it, and has a shape that is almost the same as the internal shape of the container 2. Furthermore, when the inner bag 3 is placed inside the container 2, it can be opened at the entrance and exit of the container 2. A rectangular opening 4 for filling the contents was formed in the upper part of the end face facing.

Further, in this conventional transport device, when filling or discharging powdery materials such as feed or grain into the inner bag 3 placed in the container 2, the doors 1a and lb of the container 2 are in an open state. Inner bag 3 facing the entrance/exit side of container 2
The holding plate 5 is detachably fixed to the entrance of the container 2 and presses the end face so that the end face does not bulge out due to being pushed by the contents. As shown in FIG. 5, this holding plate 5 has several crossbars 6 made of steel arranged at intervals between two relatively rigid resin sheets. Both sheaths) are made to a predetermined length t! from both ends of each crosspiece 6 and both sides of the sheath i. It is constructed so that it protrudes. As shown in FIGS. 4 and 5, such a press plate 5 extends from a position below the filling opening 4 at the upper end surface of the inner bag 3 to an area where the discharge port is planned to be formed at the upper end surface (
Generally, this type of inner bag is disposable, and after arriving at the destination, a cutter is used to cut the lower part of the end face of the inner bag to form an ejection port on site). Both ends of the crossbar 6 are fitted into vertical grooves 7 formed opposite to both side walls near the entrance/exit of the container 2, and are fixed so as to counter the bulge of the inner bag 3. Furthermore, this sheet 5
Since the uppermost crossbar 6 is connected to the container 2 with a string or the like so that it is supported at a predetermined position, the presser plate 5 will not fall downward.

(Problems to be Solved by the Invention) According to the conventional transport device as described above, it is true that the inner bag 3
Although this can be said to prevent the bulging of the end face on the filling and discharge side, this can only be achieved with the press plate 5 as described above, and requires a press plate with a very strict structure. In other words, the holding plate 5 is attached to the crosspiece 6 to prevent bending under a large load.
Since it is made of steel and is made of several pieces of steel fixed with sheets, when installing the holding plate 5, lift the whole thing and place each crossbar 6 diagonally in the vertical groove 7 of the side wall of the container 2. It was a difficult task to fill the space and required at least two or more people. Furthermore, in this conventional device, since the inner bag 3 is made of a thin material, the height of the area where the discharge port is to be formed between the lowermost crosspiece 6 of the presser plate 5 and the bottom of the container 2 is increased. If it is too high, the end face of the inner bag 2 will bulge out from that part, causing problems such as doors 1a and lb not being able to be closed. Naturally, the size of the discharge port to be formed could not be higher than that range.

In view of these conventional problems, an object of the present invention is to simplify the structure of the presser plate so that it can be operated by one person, and to provide a self-suppressing function for the bulging phenomenon without affecting the formation of the discharge port. The purpose is to provide an inner bag for the container held.

(Means for Solving the Problems) The present invention provides an inner bag made of a plurality of flexible materials, which is installed in a container with an entrance/exit formed on one end surface, and which is made of a plurality of flexible materials. The end face located on the side and a part of the bottom face connected to the lower edge of the end face are integrally formed of a material, and the material is formed of a material other than the end face and the part of the bottom face of the inner bag. It is characterized in that it has higher rigidity than other materials constituting the part, and that it is provided with fastening means connected to the inner wall of the container at the upper part of the inner bag on the container entrance/exit side.

(Function) According to the container interior of the present invention, the material constituting the end face located on the container entrance/exit side is rolled up to the bottom face, so that the part of the bottom face that is integral with the end face due to the weight of the contents. By pressing down the upper part of the end face and fixing the upper part of the end face to the inner wall of the container with a fastening means, a strong vertical tension is applied to the end face, and the material forming part of the end face and the bottom face integrated therewith is Since the material is said to be stronger than the material of the parts, the end face itself has considerable resistance to suppressing or spilling out the contents.

(Embodiments) Hereinafter, the container rental of the present invention will be explained in more detail with reference to preferred embodiments shown in the accompanying drawings.

FIG. 1 shows an inner bag 1 for a container according to an embodiment of the present invention.
0 is shown. This inner bag 10 is placed in a metal container 2 with one end face openable by a door 1a, lb as an entrance/exit as shown in FIG. Contains powdered materials such as grains or grains. By the way, the term "container" in this specification ranges from independent types such as the so-called "Green Container°" used, for example, by the Japanese National Railways, to freight vehicles such as trucks. It is used to include all containers that are fixedly attached to the vehicle body or containers for sea transportation.

This inner bag 10, which is placed inside such a container 2, is
The container as a whole has a box-like shape that fits almost tightly against the inner wall around the container, and is made entirely of a flexible material. As shown in FIG. 2, this interior rental 10 is roughly divided into two components, one of which integrates an end surface 11a located on the container entrance side and a part of the bottom surface 11b connected to the lower edge of the end surface. This is called the L-shaped grooved member 11 for convenience, and the other part is the remaining part after removing the L-shaped grooved member 11 from the box-shaped inner bag. It is called an interior main body 12.

The L-shaped grooved member 11 is formed from a woven fabric made by inserting 1500 denier polyethylene or polypropylene stretched tape into 15 lengths and 15 widths per square inch. On the other hand, the interior main body 12 has 1000
It is made of a woven fabric made of approximately 10 x 10 denier polyethylene or polypropylene stretched tapes per square inch. In this way, the L-shaped grooved member 11 needs to be made of a material that is more rigid than the interior main body 12 when compared with its material.

This L-shaped grooved member 11 is combined with the corresponding part of the interior main body 12, and a seam allowance is appropriately formed between the two to prevent the contents from leaking, so that there is no problem in terms of strength. Strictly join by sewing. In this way, the interior main body 1
An opening 13 for filling contents is formed in the upper part of the end surface 11a of the L-shaped grooved member 11 joined to the L-shaped grooved member 2. In addition, only the upper surface of the interior main body 12 has an L-shaped grooved member 1.
1 is installed by extending integrally from the edge of the interior main body at the position, protruding toward the end surface 11a side, and covering the opening 13 for filling the contents on the end surface 11a of the L-shaped grooved member 11 joined to the interior main body 12. It is provided as a cover 12a.

When the interior rental unit 10 configured in this manner is installed in the container 2, it is necessary to securely attach it to the inner wall of the container at a proper location. For this purpose, the inner bag 10 is provided with connection means to the inner wall of the container 2 at predetermined locations, as shown in FIG. Generally, embedded locking portions (not shown) are provided on the inner wall surface of the container 2 near eight corners. Therefore, the inner bag 10 is fixed by engaging each connecting means with its locking portion.

To explain this connection means in detail, a belt 14 is sewn to the upper surface of the inner bag 10 along its leading edge, that is, the edge on the side of the container entrance and exit, and over almost the entire width thereof. Both ends of this belt 14 have free parts 14a, 14 that are not sewn to the upper surface.
b, and two D-shaped layers 1 are formed only at one end 14a.
5 is provided. This belt 14 acts as a fastening means for fixing the upper part of the inner bag 10 on the container entrance/exit side to the upper part of the inner wall of the container 2 and applying tension to the end surface 11a. That is, both free portions 14a of this belt 14.

After each of the free parts 14b is passed through a corresponding locking part of the container 2, the free parts 14a and 14b are connected to each other so as to form a loop. This connection is made by folding back one of the free parts 14a through the two D-shaped layers 15 and fixing it by passing it through one of the D-shaped layers 15.

Further, ropes 18 are provided at the upper and lower portions of both sides of the inner bag 10 at respective connecting edges with the upper surface and the bottom surface.
and a belt 21 are arranged. Rope 18 (passed through multiple loops 16 sewn along the connecting edge and at intervals on the upper side of the belt 21
are similarly threaded through a plurality of loops 17 sewn to the lower side. These ropes 18 and belts 21
A hook 19, 22 is provided at each rear end (on the side opposite to the container entrance/exit side) of the rope 18, two D-shaped layers 20 are provided at the front end of the rope 18, and the front end of the belt 21 is a free portion 21a and the rope The length is such that the front end of 18 can be connected to the D-shaped layer 20.

Further, belts 23 are sewn to both sides of the lower end of the end surface 11a of the inner bag 10, respectively.

These belts, ropes, hooks, etc. are used in the following manner. Each hook 19, 22 at the rear end of each rope 18 and belt 21 is respectively engaged with a locking portion at a corresponding position on the inner wall of the container. And inner bag 1
The belts 23 on both sides of the lower end of the end surface 11a of 0 are also tied to the corresponding locking parts. At that time, the free front end portion of the belt 21 at the bottom of both sides of the inner bag 10 (or the two D-shaped layers 2
Connected using 0. Furthermore, the vicinity of the front end of the rope 18 is engaged with a corresponding locking portion on the inner wall of the container via a connector such as a carabiner. In this way, each corner of the inner bag 1o is securely locked to a corresponding corner within the container. Depending on the type of container, there are also multiple locking parts provided midway between both corners at the top of the side wall, so in that case, attach a carabiner to the part of the rope 18 where these locking parts are located. The inner bag 10 can be more stably attached to the container 2 by connecting through a C-shaped layer such as the above.

When the inner bag 1o is installed in the container 2 in this manner, the contents such as granules are blown into the filling opening 13 of the end surface 11a. At that time, opposing F4Is are formed on the side wall near the entrance and exit of the container 2 in order to suppress the overall protrusion of the end surface 11a of the inner bag 10 due to filling the contents.
Several independent bars 24 made of steel are bridged across the groove 7 to serve as support.

At this time, each bar 24 is sequentially tied and positioned on both sides by several ropes 25 lowered from the ceiling of the container 2, as shown in FIG. The reason why the means for suppressing the protrusion of the end surface 11a is only by arranging several such simple bars 24 is as follows.

When the contents are placed in the inner bag 10, a significantly large force due to the weight of the contents is applied to a portion 11b of the bottom surface integrally continuous with the end surface 11a. Therefore, the end surface 11 a
Coupled with the strong pulling force outward in the lock direction by the belt 23, the lower part of the container 2 is placed in a very highly fixed state with respect to the container 2. The upper part of the end surface 11a is the belt 14.
Since it is firmly fixed to container 2 by
The end surface 11a is in a state where strong tension is applied particularly in the vertical direction. Moreover, the L-shaped grooved member 11 constituting this end face 11a is made of a woven fabric made by driving 15 x 15 pieces of 1500 denier polyethylene or polypropylene stretched tape into each inch of the tape, which is stronger than the material of other parts. In addition, it has the power to resist the extrusion force of its contents. However, since it is impossible to completely eliminate the overall overhang of the end surface 11a, several rods 24 are arranged to suppress this overhang. In this way, even if only the bar material 24 is placed alone, the end surface 11a itself resists the pushing force with strong tension, so local bulges from between the bar materials etc. are improved, and as a result of the experiment, the best result is obtained. Even when the distance between the lower bar 24 and the floor of the container 2 was set to 300 mm, there was no bulge at all, and good results were obtained. Note that a relatively large opening 1 for filling contents as shown in FIG. 1 is provided on the end surface 11a.
3 is formed, the end surface 11a by the belt 14
In some cases, it may be difficult for the upward pulling force to reach below the opening 13, so in that case, all the tie strings 26 should be provided at appropriate locations below the opening 13, and the tie strings 26 should be placed at that position. By tying it to the nearest bar 24 located above, tension can be reliably applied to the end surface 1], a.

(Effects of the Invention) As explained above, according to the inner bag for a container of the present invention, the end surface of the inner bag has a self-restraint function against bulging, so that it can be used in a large scale, unlike conventionally used. There is no need to place a holding plate at the entrance/exit of the container, and only a few loose rods need be placed, making the structure extremely simple, and even a person can do the work. be.

In addition, as a result, the position of the lowest bar is no longer limited to a height of 250 mm or less, as was the case in the past, and therefore the size of the outlet for the inner bag, which is later formed at the bottom of the end surface, can be freely set. I can do it.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an inner bag for a container according to an embodiment of the present invention, FIG. 2 is an exploded perspective view schematically showing the structure of the inner bag, and FIG. FIG. 4 is a fragmentary vertical sectional view of the vicinity of the container entrance and exit side with the inner bag placed in the container; FIG. 4 is a perspective view showing a conventional container transport device;
FIG. 5 is a cross-sectional view of the container transport device taken along the line ■-■ in FIG. 4. 2 Container, 10-Inner bag, 11 L-shaped groove member, ll
a. End surface, part of the bottom surface of 11b, 12-. Interior main body, 13
Contents filling opening-, 14 belts. Patent applicant Shishiwa Chemical Industry Co., Ltd. Figure 2 Figure 3

Claims (3)

[Claims] (1) An inner bag made of a plurality of flexible materials that is installed in a container with an entrance/exit formed on one end surface, and is connected to the end surface of the inner bag located on the container entrance/exit side and the lower edge of the end surface. A part of the bottom surface is integrally formed of one material, and the material has higher rigidity than other materials constituting other parts of the inner bag except for the end surface and a part of the bottom surface. What is claimed is: 1. An inner bag for a container, comprising a fastening means connected to an inner wall of the container at an upper portion of the inner bag on the side of the container entrance/exit. (2) The material constituting the container opening side end surface of the inner bag and a part of the bottom surface that is integrated with the end surface is made of 1500
The inner bag for a container according to claim 1, wherein the inner bag for a container is a woven fabric made of approximately 15 pieces lengthwise and widthwise x 15 pieces of denier polyethylene or polypropylene stretched tape per square inch. (3) The other material constituting the inner bag other than the end face on the side of the container entrance and a part of the bottom face integral with the end face is a polyethylene or polypropylene stretched tape of 1000 denier in length and width of 1 square inch. Approximately 10 pieces
The inner bag for a container according to claim 1 or 2, characterized in that it is a woven fabric made of 10 woven fabrics.