JPH0427832Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bulk material transport device, and more particularly to a transport device for transporting granular materials such as synthetic resin pellets, powder materials, or grains.

BACKGROUND ART Conventionally, as a transport device of this type, a technique disclosed in Japanese Patent Publication No. 2591 of 1982 is known as a device for transporting bulk cargo.

The conventional technology disclosed in the above-mentioned publication involves placing a unit called a nest in a container, which has rigid partition walls fixed to both open ends of a cylindrical flexible bag member. The partition wall is supported by the door of the opening, thereby receiving the load on the partition wall due to the bulk goods contained in the flexible bag member.

However, in such a conventional bulk material handling device, the partition wall has a rigid shape that is approximately the same size as the opening of the container, and therefore a relatively large storage space is required when the device is not in use. Moreover, the bulkhead located at the opening of the container has no support other than the door closing the opening, and therefore there is no artificial barrier during the introduction of the bulk material into the flexible bag member. Or it had to be supported by other means. Further, the partition wall, which is partitioned by the flexible bag member and the partition walls on both sides and receives a pressing force from the bulk goods stored in the nest, is supported only by the door of the container.
This means that as soon as the door of the container is opened during unloading, the bulkhead loses its support and is pushed out of the opening. Separate means were necessary.

By the way, it is not possible to provide a protrusion on the inner wall near the opening of the container in order to support such a partition wall with anything other than the door. This is because containers are usually not used only for transporting bulk cargo by nesting them, but must also be able to be used for transporting a variety of goods. It is desirable to form a flat surface as a whole. Otherwise, the container itself would become a dedicated container for arranging the nest, and would not be usable for other purposes, which would increase the cost.

In addition, with this conventional bulk cargo transporting device, when unloading the bulk cargo inside the nest, it is dropped by its own weight from the discharge port provided at the bottom of the bulkhead, but the bulkhead is tightly attached to the door that supports it. Since the container is formed to have a flat surface, it also has the disadvantage that the bulk material inside the nest cannot be completely discharged and remains on both sides of the discharge port.

Therefore, an object of the present invention is to make the member that supports the bulk cargo storage bag disposed inside the container from an extremely flexible cloth-like material that does not have a specific shape, that is, a rigid shape, so that it can be easily accommodated when not in use. The bag can be easily stored, and the load of the bulk cargo storage bag can be supported without being present on the container door, and the support can be done without forming a protrusion on the inner wall near the container opening. An object of the present invention is to provide a bulk material transport device capable of completely discharging bulk materials without leaving them in a bulk material storage bag.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the bulk cargo transportation apparatus of the present invention will be described in more detail with reference to preferred embodiments shown in the accompanying drawings.

In FIG. 1, an embodiment of a bulk cargo transportation apparatus according to the present invention is generally designated by the reference numeral 10. The bulk cargo transport device 10 of this embodiment has one end surface opened to form an opening 11, and is partitioned by a bottom plate 12a, a top plate 12b, side plates 12c, 12d, and an end plate 12e facing the opening 11. Container 12 is included. The term "container" is used herein, for example, by Japanese National Railways. The term is used to include everything from independent types such as so-called "green containers" to those fixedly attached to the vehicle body of freight vehicles such as trucks.

Inside such a container 12, a flexible bag 13 made of a synthetic resin film or the like is arranged as a container for directly accommodating bulk goods. This flexible bag 13 can therefore be folded up into a small size when not in use. This bag 13 is a container 12
When bulk goods are put into the bag 13, they are expanded by air, which is the transport medium for the bulk goods, and are thereby attached to the surrounding inner walls of the container. Container 1 in close contact
Forms almost the same shape as 2. However, since there is no wall section at the opening 11 of the container 12 that regulates the inflated bag 13, it must be supported by that section. To this end, a cross 14 is installed inside the container at the opening 11 of the container 12 so as to receive the end of the bag 13 on the side of the container opening.

This support cloth 14 is generally made of a cloth woven from stretched polypropylene tape, so it is highly flexible and has sufficient strength to support the end of the bulk goods storage bag 13 by itself. (as long as the support cloth is fixed in a predetermined position, the support cloth will not be torn by the pressing force of the end of the bag 13), and its width is smaller than the width dimension of the container opening 11. It is long and its height is smaller than the height of the container opening 11. As described above, the flexible support cross 14 has a width larger than the width of the container opening 11, so when its both ends 14a and 14b are fixed to the inner wall surfaces of the side plates 12c and 12d of the container 12, When the supporting cloth receives pressure almost uniformly over its entire surface from inside the container, it becomes approximately semi-cylindrical as shown in FIG. At this time, the support cross 14 formed in a substantially semi-cylindrical shape has its center portion 14c in the width direction protruding the most from the container opening 11;
This most protruding part is the edge 15 of the opening 11 of the container.
You must make sure that you do not go outside.

Generally, in such a case, the degree of curvature of the support cross, in other words, the widthwise center portion 14c of the support cross
The degree of protrusion of the support cross can be easily determined based on the position of both ends 14a and 14b and the width of the support cross. Therefore, both ends 1 of the support cross 14
4a and 14b are bags 1 that are inflated by accommodating bulk goods;
The pre-calculated position (container opening (depth dimension from the edge of the container to the inside of the container) side plates 12c, 12d
It is positioned on the inner wall surface, and at the same time, it is fixed so as to be immovable at least toward the outside of the container from that position.

Container side plates 12c, 1 of this support cross 14
Positioning of the 2d inner wall surface at a predetermined position is performed by the following means. Both ends 1 of support cross 14
Since the fixing means of 4a and 14b are exactly the same,
Only one end 14a will be explained, and the other will be omitted.

The end portion 14a of the support cross 14 has connectors 16a, 16b,
16c is installed. This connection can take any known means, such as hooks or rings, and is firmly attached to the support cloth 14 by sewing or other means. On the other hand, the side plate 1 of the container 12
A fixture 17 is also formed on the inner wall surface of 2c at a proper location. An example of this fixture 17 is shown in FIG. That is, the fixture 17 is attached to the side plate 1
A recess 18 is formed in the inner wall surface of 2C, and a bar 19 is fixed to the inner peripheral surface of the recess 18 so as to cross the recess 18. Each of these fixtures 17 is indicated with a, b, c, . formed in
The fixture 17a and the connector 16a are connected by a strong tension belt 20. Fixing devices 17b and 1 are also provided at positions above and below the connecting device 16 on the inner side of the container on the inner wall surface of the side plate 12c, respectively.
7c is formed, and each of these fixtures 17b, 17c
are a connecting member 16b and a strong tension belt 21, respectively.
A and 21b are connected. The two tension belts 21a and 21b connected to the middle part in the height direction at each end of the support cloth support the ends of the bag 13 containing the bulk goods because the support cloth 14 is made of a flexible fabric. This prevents the cross from sagging and falling down, and only by attaching the tension belts 21a and 21b can the flexible support cross be used. Of course, the tension belts 21a and 21b may be separate ones, but
A single tension belt may be fastened at each end to each fixture 17b, 17c via a connector 16b.

Furthermore, the connector 16c at the lower end 14a of the support cross 14 is connected to a fixture 17d formed on the side plate 12c or the bottom plate 12a at approximately the same position as the connector 16.
The support cross 14 is directly connected to the inner wall so that there is no gap between the end of the support cross 14 and the inner wall. Further, the connector 16c is connected to the bottom plate 12a at a position adjacent to the end plate 12e.
It is also connected by a tension belt 23 to a similar fixture 17e formed near the center in the width direction. At this time, in order to support the large tension applied to the support cloth 14, the tension belt 23 is sewn along the lower edge of the support cloth 14 and extends to the other fixing device at the same position via the connector at the other end. Preferably, a single U-shaped belt is used.

For further safety, the supporting cross 14 supported on the wall surface of the container is provided with another support cross formed at a position midway in the height direction and somewhat closer to the center in the width direction than the edge of the end portion 14a. The connector 16d is located above and below the position of the connector 16d on the inner wall surface of the side plate 12c, respectively, and the fixtures 17a and 1
7b, and a fixture 17f formed between fixtures 17d and 17e.
7g with tension belts 24 and 25, increasing the support strength against loads from the inside. It is clear that a single tension belt 24, 25 can also be used.

In addition, the side plate 12c and the bottom plate 1 of the container 12
In particular, the position where the fixture 17 is formed in 2a is
This is a location where there is no problem even if a slight protrusion is formed during the transportation of cargo other than bulk cargo, and therefore, as long as it is formed in such a position, fixing devices other than the fixing device 17 shown in Fig. 2 may be used. For example, the bar 19 for fastening the tension belt may be formed to protrude from the inner wall surface in a U-shape. Rather, in such a case, this embodiment utilizes a fixture located far from the end 14a of the support cross 14 to support the support cross 14 by connecting it with a tension belt as described above. Therefore, as long as this is a fixing device as shown in FIG. By doing so, the length of the tension belt can be shortened. In this case, it is preferable to connect the upper two parts of the flexible bag that accommodates the load to the fixture with strings or the like.

When transporting bulk goods using the above-mentioned bulk goods transporting device 10, first the notch 2 formed at the upper part of the widthwise central part 14c of the support cloth 14 is
6, the bulk material is introduced into the flexible bag 13 by pneumatic conveyance from the inlet 27 of the flexible bag 13, which is formed to correspond approximately to the notch 26, and is loaded therein. As the bulk material is introduced, the flexible bag 13 gradually expands, and the lateral pressure due to the load of the bulk material pushes toward the opening 11, which is the only open point in the container 12. This pressure is supported by the support cross 14 stretched in a semi-cylindrical shape.

Although transportation is already possible in this state, for safety, the doors 28a and 28b attached to the opening 11 of the container 12 are closed and the container 12 is transported to another location. Then, when arriving at the destination, doors 28a, 2
8b is opened to open a discharge opening formed at the lower part of the widthwise central portion 14c of the support cloth 14. By the way, this support cloth 14 and bag 1
As shown in FIGS. 3 and 4, the structure of the opening for discharging bulk materials in No. 3 is such that a cross cut is made in the support cross 14 and four flaps 29a, 29b, 29c, and 29d are formed. The tip of each of these fan-shaped flaps is folded back to form a string passing portion, and one tightening cord 33 is attached through each string passing portion. On the other hand, a cross-shaped cut is similarly made in the bag 13 corresponding to this cut, and a film-made discharge hole is formed on the outer wall surface around the discharge port 30 formed by this. One end of the tube 31 is fixed with adhesive, heat seal, or the like. The other end of the discharge pipe 31 is pulled out from the notch in the support cloth 14, and is closed by tightening it with the tightening string 33. Therefore, the discharge pipe 3 can be opened by loosening the tightening string 33 and widening the flaps 29a to 29d.
The bulk material in the bag 13 is discharged from the bag 1 under its own weight. At this time, in order to prevent the film part that is a part of the bag 13 from being pulled out from the outlet hole of the support cross 14 as the bulk material is discharged, the support cross 14 is
It is preferable that the end face of the bag 13 and the bag 13 are bonded to each other at several points around the outlet 30 thereof. As the bulk cargo is discharged, the end plate 12c side of the container 12 is lifted by appropriate means such as hydraulic pressure to help complete discharge of the bulk cargo. Such tilting of the container 12 may be performed before discharging the bulk cargo, that is, at the stage when the doors 28a and 28b are opened. By constantly applying the pressing force of the bulk material to the support cross 14 from inside the container, it not only facilitates the discharge of the bulk material due to its own weight, but also maintains its semi-cylindrical state. As a result, the bulk material moves fluidly toward the center in the width direction, which is the most protruding part of the support cross 14, so that it is possible for the bulk material to remain on both sides of the discharge port 30. All bulk materials can be completely discharged.

Note that this support cloth 14 may further include a presser portion 32. This presser part 32
As is clear from the figure, it is connected to the bottom or lower edge of the support cloth 14 and extends inward into the container in a direction perpendicular to the surface thereof. Looking at the connecting edge of the presser portion 32 with the support cross, that is, the support cross, the lower edge is formed into a circular arc that is the same as the support cross, as described above. Therefore, the holding part 32 has a half-moon shape, but the position and shape of the inner edge of the container do not matter, and the holding part 32 itself is formed to have a certain area. All you have to do is stay there.

By providing such a presser portion 32 on the support cloth 14, the bulk material contained in the bag 13 rides on the presser portion 32 and presses it against the container bottom plate 12a. As a result, the supporting cross 14
The bag is more firmly supported against the lateral pushing forces of the bag containing the bulk goods.

As explained above, according to the bulk cargo transportation device of the present invention, the support cross that supports the flexible bag that directly accommodates the bulk cargo inside the container at the opening of the container is made of a flexible cloth-like material, and the supporting cloth itself is made of a flexible cloth-like material. has sufficient strength to support the ends of the bag, and
This support cross can be shaped into an almost semi-cylindrical shape by using tension belts to support the cross in the height direction near both ends, and as a result, it can be shaped into a semi-cylindrical shape. There are various advantages of using a support cloth, namely that the support cloth is flexible and does not have a specific rigid shape;
It can be folded into an extremely small size, and combined with the flexible bag, it does not require a large space for storage when not in use, and is very easy to handle and carry, making it easy to store in a standard container or container. It can be expected to improve transportation efficiency and reduce costs when transporting bulk cargo by trucks and the like. A particularly important advantage of using this support cloth is that, because it is a flexible cloth-like material, it changes to the most optimal discharge shape during unloading, depending on the amount of bulk material remaining.
This ensures complete evacuation without leaving any bulk material on either side of the bag's outlet.

In addition, as a method of tensioning or supporting the support cross, it was also considered to support the support cross in its vertical direction, but in such a case, the vertical middle part would be pushed out and the discharge opening would be pushed downwards. As a result of experiments, it has been confirmed that the discharge of bulk materials gradually becomes impossible. Therefore, such support cloths must be fixed at both ends to support the load of the bulk material. According to this, it becomes possible to discharge the dump truck without deforming it.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the bulk cargo transportation device of the present invention, Fig. 2a is a front view showing an example of a fixture formed on the inner wall of a container, and Fig. 2b is a
3 is a front view showing the discharge opening of the support cloth;
The figure is a structural explanatory diagram schematically showing the structure of the discharge opening in the support cloth and the flexible bag. 10... Bulk transport device, 11... Opening, 1
2... Container, 13... Flexible bag, 14... Support cloth, 14a, 14b... End, 15... Opening edge, 16a-16d... Connector, 17a-
17g...Fixing tool, 20, 21a, 21b, 2
2, 23, 24, 25... Band, 27... Inlet, 30... Outlet.

Claims (1)

[Claims for Utility Model Registration] A container 12 having an opening 11 formed in the entire area or part of one end surface, a foldable flexible bag 13 disposed inside the container, and a bag in which bulk goods are stored. A bulk cargo transport device comprising a flexible support cloth 14 disposed inside the container to support the end of the container on the opening side when transporting the container, and four tension belts 21a and 21b that tension and support the support cloth. In this case, the support cross 14 is made of a cloth-like material that has sufficient support strength by itself, and is shaped into a substantially semi-cylindrical shape when supporting the end of the bag containing bulk goods. Both ends 14 are formed with a width dimension longer than the width of the container, and have a semi-cylindrical protrusion located near the edge of the container opening.
a, 14b are fixed and positioned at the upper and lower parts of the inner wall of the container, and are further connected to the lower edge thereof and protrude inward of the container in a direction perpendicular to the surface thereof. The four tension belts 21a, 21b are arranged two at each end 14a, 14b of the support cloth to shape the support cloth into a substantially semi-cylindrical shape, and Both ends of the tension belts are connected to approximately the midpoint in the height direction of the ends of the support cross, and each other end is connected at a position on the inner wall of the container at a position higher than the midpoint, and the other end is connected to the inner wall of the container at a position higher than the midpoint. Further, the bag 13 has a bulk material discharge port 30 at the lower part of the end on the container opening side, and the support cloth 14 has a bulk material discharge port 30 connected to the bag 13 at a lower part of the inner wall of the container. A bulk material transport device, characterized in that outlet holes are formed at positions corresponding to the bulk material discharge ports.