JPH02209325A - Apparatus for transporting bulk cargo - Google Patents

Abstract

PURPOSE:To improve discharge efficiency by providing a sheet device comprising an upper and a lower sheets overlaid with lubricant layers respectively on a bottom wall of an outer vessel in an apparatus for transporting feed or the like. CONSTITUTION:An inner bag 12 made of cloth is placed in a container 11 while a sheet device 14 is placed on the bottom 12a of the inner bag 12. On opposite faces of the bottom 12a and the sheet device 14, lubricant layers 12c, 14b are formed respectively to form a lubricating surface between the opposite faces. In this constitution, by storing bulk cargo 15 in the inner bag 12 and opening a mouth 11a of the container 11, the bulk cargo 15 naturally flows out first, and at the angle of repose theta it stops flowing out. Then, the upper sheet 14 is wound with a winding roller 16 and drawn out toward the mouth 11a. This causes the bulk cargo 15 to be moved together with the upper sheet 14 to be discharged. This constitution improves discharging efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Minute Hand) The present invention relates to a device for transporting bulk materials, and more particularly for transporting powdered materials such as feed or granular materials such as malt or grain for beer in a rigid container. The present invention relates to a device for unloading the granular material from the container.

(Prior Art) Conventionally, powdered materials such as feed or granular materials such as beer malt or grain, that is, bulk materials, have been transported in containers such as containers. When bulk cargo is transported in a container such as a container, one end of the container is lifted and tilted when unloading, and the resulting natural flow is discharged from the container.

However, in recent years, so-called sea containers used for transporting bulk cargo between foreign countries have become larger due to transportation cost issues, and have a total length of as much as 40 feet. When unloading bulk cargo from such a large container, in order to obtain a predetermined angle of inclination, one end must be raised very high due to its long length, and as a result, equipment for tilting the container is required. The problem was that it costs a lot of money.

As a means to solve such problems,
The invention disclosed in Japanese Patent No. 1662 is known. The invention disclosed in the publication is such that sheets are laid one on top of the other while forming continuous folds on the bottom of the container, and bulk goods are placed on the sheets. When unloading, this sheet is pulled out and the bulk items are discharged one by one, but when the sheet is pulled out, the folds are released one by one, so the entire sheet cannot be pulled out at the same time. This can be pulled out using a force that counteracts the partial load applied to the seat.

(Problems to be Solved by the Invention) However, in the container for bulk transport of the invention disclosed in the above-mentioned gazette, although it is certainly not necessary to tilt the container when unloading bulk cargo, Even if the force required to resist the partial load is sufficient to pull out the sheets when discharging bulk cargo, it is necessary to do so at a slow speed over time due to friction with the container floor.

As a result, it takes time to discharge the water, so there was a request for a faster method.

The purpose of the present invention is to solve such conventional problems,
To provide a two-wheel bulk transport device capable of pulling out sheets in a short time when discharging bulk materials and having high discharge efficiency.

(Means for Solving the Problems) A bulk transport device of the present invention includes a rigid outer container having a bottom wall and at least a peripheral side wall, a sheet device disposed on the bottom wall of the outer container, and a sheet device disposed on the bottom wall of the outer container. The sheet device is composed of an upper sheet that is pulled out during unloading and a lower sheet that is placed on the bottom wall, and is characterized in that it causes sliding between mutually opposing surfaces to pull out the bulk items.

(Function) According to the bulk transport device of the present invention, a sheet device is placed on the bottom wall of the outer container, only the lower sheet is fixed to the bottom wall, and bulk materials are loaded onto the sheet device. When unloading the bulk cargo after transporting it in this state, the upper sheet of the sheet device is pulled out. The upper sheet, on which the bulk cargo is directly placed, has a very low coefficient of friction because its lower surface contacts the upper surface of the lower sheet, but the slipperiness between both surfaces is extremely low, resulting in a large amount of force. The bulk cargo loaded on it is pulled out from the container without the need for a container.

(Embodiments) Hereinafter, the bulk transport device of the present invention will be described in more detail with reference to embodiments shown in the accompanying drawings.

1 and 2 show a two-wheel transport device 10 according to a first embodiment of the present invention. FIG. 1 is a longitudinal cross-sectional view of a container 11, in which an inner bag 12 made of cloth is installed. An upper sheet 14, which is one member of the sheet device 13, is placed on the bottom 12a of the inner bag 12. In this example, the sheet is installed! ! Another member constituting the inner bag 13 is the bottom 12m of the inner bag 12, which functions as a lower sheet.

The upper sheet 14 constituting this sheet device 13 and the inner bag bottom 12a as the lower sheet are constructed in a relationship as shown in FIG. 3.

That is, the inner bag bottom part 12a as a lower sheet is formed by using a cloth, which is a main component of the inner bag 12, as a base part 12b and disposing a slip agent layer 12c on the entire upper surface thereof. On the other hand, the upper sheet 14 has the base portion 1 described above.
A slip agent 1114b is disposed on the entire lower surface of a base portion 14a made of the same material as 2b. Therefore,
In the sheet device 13, the mtt agent layer 14b of the upper sheet 14 and the slip agent layer 12c of the inner bag bottom 12m face each other and are in contact with each other, ensuring the slipperiness of the upper sheet 14 on the inner bag bottom 12a. Generally, one longitudinal end of the container 11 serves as an entrance for taking in and out the contents, and is closed with a door (not shown) during transportation. Assuming that the container 11 in this embodiment also has an entrance 11a at one longitudinal end as shown in FIG. 2, when the lower sheet 14 is laid on the upper surface of the inner bag bottom 12a, As shown in FIG. 2, extend the end 14c of the upper sheet 14 up to the top of the opposite wall 11b! It is preferable to stand up along the end wall of the inner bag 12 as shown by the i-tight line. The reason for this will be explained later.

Next, loading and unloading of bulk cargo in the two-wheel bag transport r1110 of this embodiment will be explained.

To attach the top sheet 14, make an opening/closing hole in the side wall of the inner bag 12 that is large enough for a person to fit in, and once the inner bag 12 is installed, enter through the opening/closing hole and attach the top sheet 14 onto the bottom 12a.
At the same time, the rising part, that is, the end part 14c is temporarily fixed in a predetermined position.

Thereafter, the bulk cargo 15 is loaded into the inner bag 12 through an injection port provided at the upper end of the container opening 11.

When unloading, the door of the container 11 is opened and the end wall of the inner bag located at the entrance 11m is cut with a cutter or the like, until the bulk material 15 inside the inner bag 12 reaches the angle of repose θ on the entrance 11a side. It flows out naturally. When the natural outflow stops, that is, when the pile of the bulk material 15 falls within the range of the angle of repose θ, a plurality of belts (not shown) that extend in the sliding direction are sewn onto the upper surface of the pace section 1411 in the upper sheet 14.
A take-up reroller 16 whose extra end bundled on the side of the entrance/exit 11a of the container 11 is arranged below the entrance/exit 11m of the container 11.
and forcibly wind up the upper sheet 14 using an appropriate drive device (not shown) (if there is no problem with strength, the end of the upper sheet 14 can be directly wrapped around the winding roller 16 without providing a belt). (You can also wind it up.) As a result, the entire upper sheet 14 is simultaneously pulled out toward the entrance/exit 11m of the container 11, and accordingly, the bulk cargo 15 loaded on the upper sheet 14 is moved and discharged from the container 11. At this time, the upper sheet 14 has extremely high slipperiness with respect to the inner bag bottom 12a, which is the lower sheet, as described above, so even if a considerable amount of bulk material 15 is loaded, it is relatively small. You can pull it out using pulling force. At this time, if a tilting device is already provided, there is an advantage that the container 11 can be pulled out with even less force by tilting the container 11 very slightly using the tilting device.

As the upper sheet 14 is pulled out, the bulk materials 15 are sequentially discharged as shown in FIG. If the balance cannot be maintained, the side opposite to the entrance/exit 11a will also collapse. However, in response to this collapse, the rising portion 14c of the upper sheet 14 comes down as the sheet 14 moves and receives the collapsed bulk material 15. Can be ejected from container 11 by.

4 to 6 show a separate two-wheel bag transport M20 according to a second embodiment of the present invention. In the bulk transport device 20 according to the second embodiment, a lower sheet 22, which is one component of the sheet device 21, is laid on the bottom wall of the container 11, as shown in FIG. This lower sheet 22 corresponds to the bottom part 12a of the inner bag 12 in the first embodiment, and is therefore similarly formed with a cloth as the base part 22a and a slip agent 7122b provided on the entire upper surface thereof. An inner bag 23 is placed inside the container 11 using the lower sheet 22 as an underlay. In this case, the bottom 23a of the inner bag 23 becomes the upper sheet, which is another component of the seat device 21, and the bottom 23m slides over the entire outer lower surface of the cloth, which is the main component of the inner bag 23, as a pace part 23b. A chemical layer 23c is provided. Therefore, in the sheet device 21, the slip agent layer 23 of the inner bag bottom 23a
c and the slip agent layer 22b of the lower sheet 22 face each other and come into contact with each other, ensuring the slipperiness of the inner bag bottom 23a on the lower sheet 22.

Next, loading and unloading of bulk cargo in the bulk transport device 20 of the second embodiment will be explained.

Loading of the bulk cargo 15 is the same as in the first embodiment, but in this second embodiment, the upper sheet constituting the sheet device 21 is the bottom 23a of the inner bag 23, so it is different from the first embodiment. There is an advantage that there is no need to place other constituent members of the seat device inside the inner bag as in the example, and therefore installation is easy.

When unloading the bulk cargo 15, open the door 11c of the container 11 shown in FIG. Cut along. The bulk material 15 inside the inner bag 23 is passed through the opening 1 through the cut thus formed.
It naturally flows out until it reaches the angle of repose θ on the 1a side. When the pile of bulk materials 15 falls within the range of the angle of repose θ, the natural outflow of the bulk materials 15 is stopped, and the bulk materials 15 are connected to the bottom portion 23a of the inner bag 23.
A plurality of belts sewn to the upper surface of the base part 23b of the bottom part 23a together with the end wall cut out in an inverted U shape for the cut-shaped acid are arranged below the entrance/exit 11 of the container 11 and attached to the take-up roller 16. Winding, forced winding by means of a suitable drive. As a result, the bottom part 23a of the inner bag 23 slides against the lower sheet 22 and is pulled out as shown in FIG. While being continuously cut, only the bottom portion 23a is wound up.

At the same time, the remaining upper portion of the inner bag 23 from which the bottom portion 23a has been cut is gathered up and stored in a storage device 24 disposed at a location facing the entrance/exit 11a of the container 11. As a result, the bulk material 1 placed on the bottom 23a
5 moves to the entrance/exit 11a side as the bottom portion 23a moves, and flows out from the entrance/exit 11a as described above.

In this second embodiment, the upper sheet to be pulled out is the inner bag 2.
3, and as it is pulled out, the bottom 23a
In order to separate only a, the end opposite to the inlet/outlet cell lla is bag-shaped, so even if the rear of the bulk material 15 collapses, it will not protrude from the bottom 23.
The bulk material 15 in the inner bag 23 can finally be completely discharged.

In the first and second embodiments described above, the seat device 11
The upper sheets 14, 23a and the lower sheets 12a, 22 that constitute the base portions 14, 21 are each a base portion 14a.

The slip agent layers 14b, 12a, 23c, and 22b were provided on the entire opposing surfaces of the sheets 23b, 12b, and 22a. (partially in the direction perpendicular to the direction).

That is, one of the upper and lower base parts is provided with a slipping agent layer on the entire surface, and the other is partially provided with a slipping agent layer, and in this case,
In areas where the slip agent layer does not come in contact with each other on the top and bottom, the slip properties are slightly reduced, so by adjusting the area ratio, a braking action can be applied to prevent the sheets from shifting during transportation. You can also do that.

In this case, it is also possible to configure the seat device 30 as shown in FIG. That is, in this seat device 30, only the lower sheet 31 has a lubricant layer 31b on the entire upper surface of the base portion 31a, and the upper sheet 32 has a lubricant layer 32b on the lower surface of the base portion 32a except for the front and rear surfaces.
It is configured with.

Furthermore, a seat device 2 configured as shown in FIG.
It can also be set to 5. That is, the sheet device 25 includes an upper sheet 26 and a lower sheet 27, and a slip agent layer is partially applied in the lateral direction (direction perpendicular to the sliding direction) on the lower surface of the base portion 26a consisting of the upper sheet 26 and the like. 26b along the entire length in the sliding direction. Similarly, the lower seat 27 has a base portion 27m made of cloth or the like.
It is formed by providing a slipping agent layer 27b partially on the upper surface in the lateral direction and facing the slipping agent layer 26b of the upper sheet 26. However, it may be made of paper and cloth glued together; in short, any material with high tensile strength may be used. Various types of slip agents can be used, but the most suitable one is a release agent for release paper, such as silicone.

This mold release agent also has excellent slip properties, and when the coefficient of static friction between treated surfaces was measured, it was confirmed that it was extremely low. Since such a release agent for release paper is provided on the back of the adhesive tape, it can be released by various methods such as pasting this adhesive tape on the surface of the base or directly coating the base with silicone. A sliding sheet can be formed.

Further, in the above-mentioned embodiments, a container was used as the outer container for transporting in bulk, but in general, a container is a box-shaped container. However, the present invention is not limited to such containers, but may be any rigid outer container with a floor and at least a circumferential sidewall, including containers separated from a typical truck bed or vehicle. .

(Effects of the Invention) As explained above, according to the bulk transport device of the present invention, a sheet device consisting of an upper sheet and a lower sheet, at least one of which is a sliding sheet, is arranged on the floor of a rigid outer container. By loading bulk materials on top of the container and pulling out the upper sheet when unloading, the bulk materials can be easily discharged from the outer container in a short time without tilting the outer container.

[Brief explanation of the drawing]

FIG. 1 is a lateral vertical cross-sectional view of a two-wheel transport device according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view of the two-wheel transport device shown in FIG. 3 is a fragmentary sectional view showing an enlarged view of the sheet device in the bulk transport device of FIG. 2, and FIG. FIG. 5 is a fragmentary cross-sectional view showing an enlarged sheet device in the bulk dual-wheel transport device shown in FIG. 4, and FIG. Fig. 4 is a cross-sectional view showing a state in which bulk materials are being discharged in the bulk transport device shown in Fig. 7, Fig. 7 is a transverse longitudinal sectional view showing another example of the sheeting device, and Fig. 8 is a sectional view of the sheeting device. FIG. 7 is a longitudinal cross-sectional view showing still another example. 10.20... Bulk transport device, 11... Container, 12... Inner bag, 12a... Inner bag bottom, 12b...
-Base part, 12c...Slip agent layer, 13...Sheet device, 14...Top sheet, 14a...Base part,
14b...Slip agent layer, 15...Bulk goods. Patent applicant: Showa Seifuku Kogyo Co., Ltd.

Claims (1)

[Claims] a rigid outer container having a bottom wall and at least a peripheral side wall;
a sheet device disposed on the bottom wall of the outer container, the sheet device comprising an upper sheet pulled out during unloading and a lower sheet disposed on the bottom wall, faces facing each other; A bulk cargo transport device that is characterized by causing a slip between the parts and pulling out the bulk cargo.