JPS63294387A - Self-opening type inner bag for transport container - Google Patents

Abstract

PURPOSE:To simply develop an inner bag in a container under tension by a simple means, by providing a cargo charging port to one end part of the top surface of a bag body and providing a self-opening type cargo discharge port to the bottom surface of the bag body and mounting traction jigs to the bottom edge and both side edge parts of the front end surface of the bag body. CONSTITUTION:A cargo charging port 22 equipped with a tightening string 22a is provided to the top surface 12 of a bag body so as to be near to the front end surface 18 thereof and a self-opening type cargo discharge port 24 is provided to the bottom surface 14 of the bag body 10 and traction jigs 26 supported by pad cloths are provided to the bottom edge and both side edge parts of the front end surface 18 of the bag body. Further, an air forcible introducing and discharge port 28 equipped with a tightening string 28a is provided to the side part of the cargo charging port 22. The bag body 10 is stretched on the inner bottom surface of a container 44 and compressed air is sent in the bag body 10 from the air forcible introducing port 28 in such a state that the top surface 12 of the bag body 10 is suspended by a stretching degree prescribing and suspending means 42. The cargo charging port 22 is positioned outside the opening end surface of the container 44 and a lower tightening means 38 is tightened to allow the length of the bottom part 14 of the bag body in the longitudinal direction thereof to match with the length of the bottom surface of the container 44. The bag body 10 is simply developed in the container 44 under tension in a charging posture.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention is directed to a container for transporting cargo that does not have a regular shape, such as a single grain of powder, by using a shipping container. This invention relates to bags, and particularly to self-opening inner bags that can be suitably used in standard containers transported by railways, trucks, etc., and that facilitate loading and unloading of cargo, especially loading and unloading operations. .

[Conventional technology]

In recent years, containers have been widely used to transport cargo simply and efficiently. When such a container is used to transport a single grain of powder, an inner bag is housed inside the container to prevent contamination of the cargo and the container.

Such inner bags are typically formed of a thin flexible sheet material of, for example, vinyl chloride, polyethylene, etc.
It is configured to be installed and expanded inside the container so that the entire volume inside the container can be effectively utilized.

[Problem that the invention seeks to solve]

Incidentally, as described above, such an inner bag is formed of a relatively thin flexible sheet material and is stretched inside the container, and therefore requires the following restrictions or usage conditions.

First of all, in order to expand the inner bag, the upper and lower peripheral edges of the packaging body must be suspended or fixed to the inner wall of the container, which makes the suspension and fixing means complicated and the expansion work complicated. Requires effort. Next, the top and bottom surfaces of the container require opening hatches that correspond to the loading and unloading ports for the inner bag, and the front door of the container requires an opening hatch that corresponds to the dispensing opening for the inner bag, which will be described later. , which generally requires a special container other than the standard container. Furthermore, since the inner bag is subject to a large internal pressure due to the loaded cargo, when loading or unloading the cargo, before opening the front door of the container, first open the above-mentioned dispensing hatch and release the cargo from this hatch. The cargo must be discharged in small quantities through a dispensing opening provided in the inner bag of the container, thereby reducing the internal pressure, and then the front door must be opened to load and unload the cargo. Moreover, even if such complicated loading and unloading procedures are followed, the inner bag is often broken by the internal pressure, and the interior of the inner bag is cleaned through the loading and unloading ports, which have limited opening areas, resulting in contamination. prevention is not done completely. For this reason, this type of inner bag is usually used disposable.

That is, this kind of conventional inner bag generally requires a specific container corresponding to the inner bag, and also requires complicated suspension fixing means and troublesome labor to expand the inner bag into the container.
Loading and unloading of cargo, especially loading and unloading, requires complicated procedures and skill. Furthermore, such inner bags usually have to be used disposablely.

SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to be able to suitably be used in a standard type container, to allow the inner bag to be expanded into the container using simple means, and to facilitate the loading and unloading of cargo. It can be done safely and
Another object of the present invention is to provide a self-opening inner bag that can be used repeatedly.

[Means for solving problems]

In order to achieve the above object, the self-opening inner bag for a shipping container according to the present invention uses a flexible sheet material to form a rectangular parallelepiped-shaped bag that can be freely expanded and contracted in the longitudinal direction. A cargo input port is provided at one end of the surface, and a self-opening cargo discharge port is provided on the bottom surface of the bag that extends along the longitudinal direction of the center and slightly rises on both front and rear end surfaces. It is characterized by attaching traction tools to the edge and both side edges.

In this case, the self-opening cargo discharge port is constructed by overlapping the free end edges of the left and right divided sheets that extend along the longitudinal direction of the center of the bottom of the bag body and rise slightly on both the front and rear end surfaces, Furthermore,
Detachable adhesive pieces are arranged at predetermined intervals in the longitudinal direction on the facing surfaces of the overlapping portion, and means for tightening the redivided sheets at the rising portion of the overlapping portion toward the end face of the bag body. It is preferable to arrange this.

In addition, means for tightening the length of the bag in the longitudinal direction at a uniform reduction rate is provided on both left and right sides of the bag near the upper and lower edges thereof, and between these tightening means, the bag is tightened. Means for tightening in the longitudinal direction is provided on the top surface of the bag, and means for regulating the degree of elongation of the top surface in the longitudinal direction and suspending the top surface is further provided near both end edges in the longitudinal direction of the top surface of the bag. When provided, the work of attaching and expanding the bag inside the container and the work of loading cargo into the bag can be made more advantageous. At the same time, it is possible to prevent damage to the bag during transportation and to make loading and unloading of cargo from the bag safer and more efficient.

The above-mentioned tightening means is preferably composed of a rope, a rope fixing device, a rope anchoring device, and a tubular spacer, and the elongation regulating/suspension means is preferably composed of a rope, a rope fixing device, and a container. It is preferable to configure it with a rod-shaped hanging tool.

[Effect]

In order to expand the bag inside the container, the folded bag is stretched onto the inner bottom surface of the container, and then the top surface of the bag is suspended by a stretching degree regulating/suspending means, and at the same time, the top surface of the bag is tightened or tightened. This can be easily achieved by regulating the longitudinal length of the bag by setting it to a predetermined length, and then introducing compressed air into the inside of the bag. When loading cargo into the bag, when the bag is expanded into the container, the bag is expanded so that the cargo input port is located outside the container.
It can be easily filled using a charging hose or the like.

To load and unload cargo, open the front door of the container, release or relax the tightening means on the rising edge of the opening type discharge port and other tightening or tightening means as appropriate, and then lift the bag using a towing device. By towing the bag, the bag gradually extends from its front end and is pulled out of the container. At the same time, the internal pressure applied by the loaded cargo causes the opening type discharge port to expand and open, automatically allowing loading and unloading. carried out.

Furthermore, in this case, the degree of expansion of the bag body can be appropriately regulated by the degree of expansion restriction/suspension means, so that loading and unloading operations can be performed safely.

In addition, during transportation, the bag retains its external shape by tightening or tightening means, and at the same time the bag wall is supported by the inner wall of the container, so the bag is not damaged. Also, the container will not be contaminated. Further, when the loading and unloading operation is completed, the interior of the bag can be easily and completely cleaned via the discharge port extending vertically across the bottom surface of the bag. In this way, it is possible to provide a self-opening inner bag that can be suitably used for standard containers and can be used repeatedly.

〔Example〕

Next, embodiments of the self-opening inner bag for a shipping container according to the present invention will be described in detail with reference to the accompanying drawings.

In FIG. 1, a bag body 1 basically forming a self-opening inner bag is shown.
0 is the top surface of the rectangle 12. Bottom surface 14. Both left and right sides 16, 16. It is formed into a rectangular parallelepiped shape consisting of a front end surface 18 and a rear end surface 20.

The bag 10 is made of a thin flexible sheet material as described above, but when the bag 10 is installed inside the container, the bag is expanded by supplying pressurized air as will be described later. Preferably, it is formed of a tarpaulin sheet or the like having excellent shape retention, and is configured to be stretchable in the longitudinal direction.

In the figure, the bag 10 is contracted almost entirely, and only a portion near the front end surface 18 is expanded.

A cargo input port 22 equipped with a tightening cord 22a is provided on the top surface 12 of the bag body near the front end surface 18 of the bag body, and a self-opening cargo discharge port 24 is provided on the bottom surface 14 of the bag body. A traction tool 26 supported by the cloth is provided on the edge and both side edges. In addition, an air pressure inlet/outlet port 28 equipped with a tightening cord 28a is provided on the side of the cargo input port 22. Further, the cargo input port 22 may be provided at the upper part of the front end surface 18 of the bag body, as shown by the two-dot chain line. As shown in an enlarged view in FIG. 2, the self-opening cargo outlet 24 is a left-right split sheet that extends along the longitudinal direction of the center of the bag bottom surface 14 and rises slightly on both front and rear end surfaces 18 and 20. 30.32 free edge 30a.

32a are stacked one on top of the other, and detachable adhesive pieces such as hook-and-loop fasteners 34 and 36 are disposed at a predetermined interval in the longitudinal direction on the contacting surfaces of the fitting parts. A split sheet tightening means 39 is provided on the rising portion 24a of the front end surface 18 of the bag body, and includes a tightening piece 39a fixed at one end and a locking tool 39b for locking the free end of the tightening piece 39a.

In addition, means 38 for tightening the length of the bag 10 in the longitudinal direction at a uniform reduction rate are provided on both left and right side surfaces 16 of the bag near the upper and lower edges thereof, and a gap between the tightening means 38 is provided. A means 40 for tightening the bag body 10 in the longitudinal direction is provided. The tightening means 38 includes front and rear rope fixing devices 38a and 38b supported on the front and rear end edges of the bag side surface 16 via a cloth, and a predetermined constant distance between the two fixing devices. A plurality of rope anchors 38c are provided, and a rope 38d has one end fixed to the rear rope anchor 38a, is inserted through the rope anchor 38C, and the other end is detachably fixed to the front rope anchor 38b. and a tubular spacer 38e of the same length that is inserted through the rope 38d and regulates the tightening distance between the rope anchors 38C. By tightening the rope 38d, the bag body 10 has its longitudinal length reduced. The tightening is set to a predetermined reference length (in this case the length of a standard container). The tightening means 40 includes front and rear rope fixing devices 40a and 40b supported on the front and rear edges of the bag side surface 16 via a cloth, and a plurality of rope locking devices disposed between the two fixing devices. Ingredients 40c
and a rope 40d, which has one end fixed to the rear rope fixture 40a, is inserted through the rope anchor 40c, and has the other end detachably fixed to the front rope fixture 40b.

In addition, means 42 for regulating the degree of longitudinal extension of the top surface and suspending the top surface is disposed near both longitudinal end edges of the top surface 12 of the bag body. This means 42
The front and rear rope fixing devices 42a are supported on the front and rear edges of the container 44 via the cloth, the rod-like hanging device 42c is attached to the upper edge of the opening front end surface of the container 44 in which the bag 10 is accommodated, and the rear It is composed of a rope 42d that has one end fixed to a rope fixture 42a, a rope 42d that is locked to a bar-shaped suspension fixture 42c, and the other end removably fixed to a front rope fixture 40b, and suspends the top surface 12 of the bag body. At the same time as hanging, the rod-shaped hanging device 4 of the rope 42d
By adjusting the hanging position relative to 2c, the degree of longitudinal extension of the bag 10 is regulated.

Next, a method of using the self-opening inner bag constructed as described above will be explained. Note that, as described above, this inner bag is particularly suitable for use in standard type containers.

First, in order to expand the inner bag, that is, the bag body 10 into the container 44 (see FIG. 3), the folded bag body 10 is stretched onto the inner bottom surface of the container 44, and then the degree of expansion is controlled and suspended. Pressurized air is introduced from the pneumatic inlet 28 while the bag top surface 12 is suspended by the means 42. In the process of feeding the pressurized air, the locking position of the row 142d in the means 42 with respect to the rod-shaped suspension device 42c is adjusted to
2 is located outside the open end surface of the container 44, and the lower tightening means 38 is tightened to tighten the bag bottom 14.
The length in the longitudinal direction is made to match the length of the bottom surface of the container 44. In this case, the input port 22 is closed, the tightening means 38 is tightened, and the upper tightening means 38 and the tightening means 40 are tightened or tightened as appropriate. As a result, the bag 10 is easily expanded into the container 44 in a loading position, as shown in FIG. Note that, of course, the input port 22 is opened during cargo loading work in the next step, but since the bag sheet has relatively shape-retaining properties, the loading posture will not collapse.

When loading cargo, as shown in FIG. Insert. As a result, the cargo is transferred to the loading line 50a.

50 b, 50 c... Easy bag construction 0
filled inside. During this loading process, the tightening means 4
0 is tightened appropriately, the upper tightening means 38 is tightened, and the longitudinal length of the bag 10 is set to the length of the container 44,
Finally, the rod-like suspension device 42c is removed, the means 42 is tightened, and the inlet 22 and the air outlet 28 are closed.

As a result, the bag 10 is stored in the container 44 in a transportation position, as shown in FIG. Next, the container door 46 is closed and the container is transported, but during this transport, the bag 10 has its external shape adjusted by each tightening means 38, 38 and each tightening means 40, 42, as shown in FIG. Since the bag wall surface is supported by the inner wall surface of the container, the bag body 10 will not be damaged by the internal pressure applied to the bag body 10, and the loaded cargo will not leak and damage the bag body 10 or the container. No internal contamination.

When loading and unloading cargo (see FIG. 7), the door 46 of the container is opened, the rod-shaped hanging device 42c is attached to the container body 44, and the elongation regulating means 42 is hung, and the traction device 26 is
is connected to a traction means (not shown), then the discharge port tightening means 39 is released, the tightening means 38, 38, the tightening means 40 and the extension degree regulating means 42 are appropriately relaxed, and finally, the traction means is connected to the traction means (not shown). It operates to tow the bag body 10. As a result, the bag 10 is gradually extended from the front end surface 18 side and pulled out of the container, and at the same time, the opening-type discharge port 24 is expanded and opened by the internal pressure applied by the loaded cargo, and the bag 10 is automatically loaded. Wholesaling is carried out. Furthermore, in this case, the degree of expansion of the bag 10 is restricted by the degree of expansion restriction means 42, and the bag 10 is suspended, so that loading and unloading work can be carried out safely. In this way, when the bag 10 is extended and the entire bag is pulled out of the container, the unloading operation is completed, but if the cargo remaining inside the bag 10 remains at this time, the remaining cargo is removed. is easily and completely discharged from the discharge port 24 that runs vertically across the bottom surface. The used bag is folded and returned to the next place of use.

As described above, the self-opening inner bag according to the present invention can be suitably used for a standard type container, and can be used repeatedly.

Furthermore, the container can be easily expanded into the container, and cargo loading and unloading operations, especially unloading operations, can be performed extremely easily and safely.

Although the present invention has been described above with reference to preferred embodiments, it is of course possible to make many design changes without departing from the spirit and scope of the present invention.
A plurality of tightening means 40 can be provided in 6, and the tightening means 39 at the rising portion of the discharge port 24 are connected to the front and rear end surfaces 1.
It can be provided on both sides of 8° and 20°.

〔Effect of the invention〕

As explained above, the transport container self-opening inner bag according to the present invention has an inner bag, that is, a bag body, which is formed to be expandable and contractible in the longitudinal direction, and an input port is provided at one end of the top surface of the bag body.
A discharge port is provided in the center of the bottom that extends longitudinally through the bottom and automatically expands and opens depending on the internal pressure of loaded cargo, and a traction tool is provided on the front end surface for pulling the bag out of the container. When the bag is installed inside the container, the input port is located outside the container so that it can be easily expanded and expanded, and it is configured so that cargo can be loaded and unloaded automatically. It can be suitably used in containers, and loading, transporting, and unloading of cargo can be carried out extremely easily and safely. Moreover, this inner bag can be used repeatedly because it is not damaged by the internal pressure of the loaded cargo, and the cargo is completely evacuated and is not contaminated.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of a self-opening inner bag for a shipping container according to the present invention, and FIG. 1, FIG. 2(b) is a sectional view corresponding to FIG. 2(a) showing the automatic expansion state of the discharge port shown in FIG. 1, and FIG. 3 is a cross-sectional view corresponding to FIG. A perspective view showing the state in which the self-opening inner bag shown in the figure is installed and unfolded in a standard container in a cargo loading position, and Fig. 4 is a cross section taken along the line IV-IV in Fig. 3 to explain the cargo loading state. 5 is a perspective view corresponding to FIG. 3 for explaining the cargo loading completion state, FIG. 6 is a sectional view taken along the line Vl-Vl in FIG. 5 for explaining the container transportation state, and FIG.
The figure is a perspective view corresponding to FIG. 3 for explaining the cargo loading/unloading state. 10. Self-opening inner bag 12. , ,Top surface 14,
,,bottom surface 16. ,,side surface 18,,,front end surface 20. ,, Rear end surface 22),, Cargo input port
24. ,,self-closing cargo outlet 26,,,traction device
28. ,, Air pressure inlet and outlet 30.32. ,,divided sheet 34,36. ,,adhesive piece 38,,, tightening means
39.40. , , Tightening means 42) , Extension degree regulating/suspension means 42c, , Rod-shaped suspension tool 44. ,,Container body 46,,,Container door 48. , , Input hose 50, , Cargo loading line FIG, 2 FIG, 3 FIG, 4 FIG, 5 FIG, 6 ] 4 FIo, 7

Claims (8)

[Claims] (1) A rectangular parallelepiped bag is formed using a flexible sheet material so that it can be expanded and contracted in the longitudinal direction. A self-opening transport container characterized by having self-opening cargo discharge ports extending along the direction and rising slightly on both front and rear end faces, and having traction devices attached to the bottom edge of the front end face of the bag body and to both side edges. Inner bag. (2) In the self-opening inner bag as set forth in claim 1, the self-opening cargo discharge port extends along the longitudinal direction of the bottom center of the bag body and slightly rises from both the front and rear end surfaces. A self-opening inner bag for a shipping container, which is constructed by overlapping the free edges of divided sheets. (3) In the self-opening inner bag according to claim 2, removable adhesive pieces are arranged at a predetermined interval in the longitudinal direction on the opposing surfaces of the overlapped portions of the left and right divided sheets. A self-opening inner bag for shipping containers. (4) In the self-opening inner bag according to claim 2, a transportation container is provided with means for tightening both the left and right divided sheets at both rising portions of the ends of the bag at the overlapping portion of the left and right divided sheets. Self-opening inner bag. (5) In the self-opening inner bag according to claim 1, means for tightening the longitudinal length of the bag at a uniform reduction rate is provided near the upper and lower edges on both left and right sides of the bag. A self-opening inner bag for a transport container, comprising means for tightening the bag body in the longitudinal direction between the two tightening means. (6) In the self-opening inner bag according to claim 5, the tightening means includes both the front and rear rope fixing devices disposed at the front and rear end edges of the side surface of the bag body, and the two rope fixing devices. a plurality of rope anchors arranged at predetermined regular intervals;
a rope that has one end fixed to the rear rope fixture, is inserted through the rope anchor, and has its other end detachably fixed to the front rope fixture; and a rope that is inserted through the rope and is inserted between the rope anchor. A self-opening inner bag for a shipping container consisting of a tubular spacer of the same length that regulates the tightness of the spacer. (7) In the self-opening inner bag according to claim 1, the degree of longitudinal extension of the top surface is regulated and the top surface is suspended near the edges on both longitudinal sides of the top surface of the bag body. A self-opening inner bag for a shipping container, which is equipped with a means for (8) In the self-opening inner bag according to claim 7, the elongation regulating and suspending means includes both front and rear rope fixing devices disposed at the front and rear end edges of the top surface of the bag; a rod-like suspension device attached to the upper edge of the front end surface of the opening of the container in which the body is accommodated; A self-opening inner bag for a shipping container consisting of a rope whose other end is detachably fixed to a rope fixture.