JPH0479915B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to improvements in containers for containing liquids, such as storage and transportation attached to storage tanks, holds and wheels on land and at sea.

[Prior art]

Conventionally, in the above storage tank, when the rigid rectangular parallelepiped outer shell 1 is non-watertight as shown in FIG. 8a, a flexible bag 2 is inserted along the inner surface of the outer shell 1. To ensure watertightness, and when the rigid outer shell 1 is watertight as shown in FIG. Two chambers 4, 4' are formed by filling the two liquids.

[Problem that the invention seeks to solve]

By the way, the bag 2 inserted into the outer shell 1 in the storage container shown in FIG. It is fixed to the inner surface of a certain mid-high part and hangs down, and when the liquid 5 is supplied into this bag 2, the eighth
As shown in Figure b, the upper half of the hanging bag 2 has an overlap 6 between the CDs. That is, the film length has an overhang of 6 due to the relationship CD>AB. As a result, the bag 2 is attached to the inner surface of the outer shell 1 by the overhang 6 as shown in FIG. 8c.
When the liquid 5 is further supplied, the creases 7 are fixed to the inner surface of the outer shell 1 by the pressure of the liquid and do not widen, and finally the state shown in FIG. 8d is formed. Because of the creases 7, there is an invalid portion in the circumference of the upper half of the bag 2, making it impossible to fill it to a predetermined capacity. Also, a space 8 is created between the bag 2 and the outer shell 1, and the upper half of the bag 2 is not supported by the outer shell 1, so the bag 2 may burst or there is a greater risk of bursting. . Furthermore, there is no regularity in the occurrence of creases 7, and it is impossible to fill the liquid 5 so that creases 7 do not occur.

On the other hand, in the storage tank shown in Figure 9a, there is no problem in filling the two liquids at the same time;
Filling only the chamber 4' formed between the sheet 3 and the lower half of the outer shell 1 with the liquid 5 as shown in FIG. Since the creases 7 occur, a space 8 is created between the upper half of the outer shell 1 and the predetermined capacity cannot be filled. Therefore, when filling one of the chambers 4 and 4' with the liquid 5, either the upper liquid is drained from the two-liquid filling state shown in FIG. A device that simultaneously drains the liquid above and replenishes the liquid above is available only when possible, which is very inconvenient and has low utilization.

Therefore, the present invention provides a flexible membrane bag 2 or a single sheet 3 inserted into the outer shell 1 when filling with liquid.
To provide a container that can be filled with liquid without creating creases 7 or creating a space 8 between a bag 2 or a sheet 3 and the upper half of an outer shell 1. This is what I am trying to do.

[Means for solving problems]

The technical means of the present invention for solving the above problems is that a flexible membrane-like body is inserted into a rigid outer shell, and the membrane-like body is fixed to the middle and upper part of the outer shell and hangs down. In a container in which the membrane-like body swells upward as it is filled with liquid, a weight is attached locally to the bottom of the hanging membrane-like body that swells, and the weight attachment part lowers the liquid level while filling the liquid. It is designed so that it falls more downward than the previous year.

The membrane-like body may be a bag-like body that runs along the inner surface of the outer shell, or a single sheet whose peripheral edge is watertightly fixed to the inner surface of the middle part of the outer shell and whose size runs along the inner surface of the upper half of the outer shell. In the case of a bag-like body, the liquid is filled inside, and in the case of a single sheet, it is between the lower half of the watertight outer shell below the seat fixing part and the seat. The formed chamber is filled.

In addition, if the horizontal cross-sectional shape of the membranous body is a circle or a regular polygon, the weight is located at the center of the bottom of the membranous body.
Further, in the case of a horizontal cross-sectional shape having a short diameter, it is attached in the longitudinal direction of the center portion of the bottom of the cross-section.

〔Example〕

An embodiment of the container according to the present invention will be explained with reference to FIG. The container shape of this example is a rectangular parallelepiped with a rectangular horizontal cross section. In FIG. 1a, reference numeral 1 denotes a non-watertight rigid rectangular parallelepiped outer shell, into which a flexible body, in this example a rubber bag 2, is inserted. Here, the state of bag 2 is the bag in Figure 3 a.
The X-X′ cross section of ABCDIJKL is shown. The bag 2 has a shape that follows the inner surface of the outer shell 1, and the outer surface of the middle portion thereof is attached to the inner surface of the middle portion of the outer shell 1. That is, as shown in FIG.
Hanging fittings 1 fixed at regular intervals around the outer surface of the middle and high part of
1 is locked, and bag 2 is suspended downward. A weight 12 is attached to the center of the bottom of the cross section of the bag 2 hanging downward. That is, Fig. 3a,
As shown in b, the weights 12 are covered with a cover 13 made of the same material as the bag 2 at regular intervals in the longitudinal direction of the hanging upper half of the bag 2, and the cover 13 is fused to the bag 2. A weight 12 is attached to the bag 2.

Here, FIG. 3a shows the entire bag 2,
The state in which bag 2 is ABCDIJKL indicates the state in which the bag 2 is hanging down before supplying the liquid shown in Figure 1a, and the state in which bag 2 is
The ABCDEFGH state indicates a fully inflated state with liquid supplied. In Figure 4, bag 2 is the third
A portion of the state of ABCDIJKL in the figure is shown.

In the tank configured as described above, when the liquid 5 is supplied from the liquid supply port 14 into the bag 2 inserted into the outer shell 1, the upper half of the bag 2 is filled with liquid as shown in FIG. 1b. Since the bag 2 is pulled and tensed by the weight 12 falling below the surface, no creases are formed in the upper half of the bag 2 that are fixed to the inner surface of the outer shell 1.
If liquid 5 is further supplied in this state,
As shown in Figure 1c, when the bag 2 is under tension, the liquid 5
The liquid 5 swells upwards in the bag 2.
When the bag 2 is filled, the upper half of the bag 2 comes into close contact with the inner surface of the upper half of the outer shell 1, as shown in FIG. In this way, the outer shell 1 is indirectly filled with a predetermined amount of liquid 5.

Next, another embodiment of the tank according to the present invention will be described with reference to FIG. In Fig. 4a, 1' is a rigid outer shell of a horizontal cylinder whose horizontal plane shape is rectangular.The lower half of this outer shell 1' is watertight and the upper half is non-contact. It is watertight. 3 is the above-mentioned outer shell body 1'
The flexible membrane-like body charged in the interior is a sheet made of rubber in this example, and the state of this rubber sheet 3 is the sixth state.
Fig. 3 shows a Y-Y' cross-section of the sheet ABCDEF in figure a. This sheet 3 is shaped to follow the inner surface of the upper half of the outer shell 1'. The outer peripheral edge of this sheet 3 is watertightly fixed to the upper end peripheral edge of the watertight lower half of the outer shell 1'.

That is, as shown in FIG. 5, the periphery of the sheet 3 is joined and integrated with a seal band 15 fixedly attached to the periphery of the upper end of the lower half of the outer shell 1' with adhesive. This sheet 3 is suspended downward, and a weight 12 is attached to the center of the bottom of the cross section. That is, the sixth
As shown in Figures a and b, weights 12 are fixed with adhesive tape 16 and integrated with the bag 2 at regular intervals in the longitudinal direction of the center of the sheet 3.

Here, FIG. 6a shows the entire sheet 3, and the state where the sheet 3 is at ABCDEF is the state where it is hanging down before the liquid is supplied in FIG. 4a, and the sheet 3 is at A'B'CDEF. The state shows the fully inflated state with liquid supplied. FIG. 6b shows a portion of the state in which sheet 3 is at ABCDEF in FIG. 4a.

In the tank configured as described above, when the liquid 5 is supplied into the outer shell 1' from the liquid supply port 14', the sheet 3 is moved by the weight 12 which has fallen below the liquid level, as shown in Fig. 4b. Since the sheet 3 is stretched and tensed, no creases are formed in the sheet 3 that are fixed to the inner surface of the outer shell 1. In this state, when the liquid 5 is further supplied, the sheet 3 as shown in FIG.
swells upward due to the tense state liquid 5,
When the liquid 5 eventually fills the outer shell 1', the sheet 3 comes into close contact with the inner surface of the upper half of the outer shell 1' as shown in FIG. Located in the center of the top. In this way, a predetermined amount of liquid 5 is directly filled into the outer shell 1'.

When the outer shell 1' shown in Fig. 4 is completely watertight, the upper and lower halves of the outer shell 1' partitioned by the sheet 3 as shown in Fig. 7a. Can be filled with two liquids. Further, as shown in FIGS. 7b and 7c, different liquids 5 can be filled individually above and below the sheet 3.

In the above embodiment, the outer shells 1 and 1' are a rectangular parallelepiped and a horizontal cylinder, respectively, but the present invention is not limited to these. It may be a vertical cylinder whose body or horizontal cross-sectional shape is circular, square, regular polygon, or the like.
The most effective mounting position for the weight 12 is in the longitudinal direction of the bottom of the cross section of the hanging membrane in the case of a horizontal cylinder, and in the center of the bottom of the hanging membrane in the case of a vertical cylinder. However, when the liquid is supplied, the weight 1
2 is below the liquid level, and the membrane-like body can swell upward as the liquid is supplied without causing wrinkles that are fixed to the inner wall surface of the outer shell body by hydraulic pressure.

The means for attaching the weight 12 to the membrane-like body is not limited to the above-mentioned embodiments; it may be attached directly to the membrane-like body, or a tube or bag may be provided on the membrane-like body, and the weight may be passed through or stored therein. . Further, the shape of the weight 12 is not limited, and it may be in the shape of a block, a line, a plate, a ring, etc., and one or more weights 12 may be attached intermittently or continuously. It is not limited.

〔Effect of the invention〕

As detailed above, the container of the present invention has a weight attached to the bottom of a membrane-like bag or a single sheet that is inserted into the outer shell and hangs down only in the middle and high parts of the inner surface. The mounting part is designed to fall below the liquid level while filling the bag or sheet, so the membrane bag or sheet is always under tension during filling. I am forced to do it. Therefore, creases that are fixed by hydraulic pressure do not occur on the inner surface of the outer shell, and when the inside of the bag or one sheet is filled with liquid, the bag or one sheet is attached to the upper half of the outer shell. Because it fills the inner surface and leaves no space,
It can be filled with a predetermined amount of liquid.

[Brief explanation of the drawing]

1A to 1D are schematic cross-sectional views showing the liquid filling process in an embodiment of the container of the present invention, and FIG. FIG. 3a is a perspective view showing the entire membrane-like body; FIG. 3b is a perspective view showing an example of means for attaching a weight to the bag of the membrane-like body; FIGS. 4a to 4d 5 is a schematic longitudinal cross-sectional view showing the liquid filling process in another embodiment of the container of the present invention, and FIG. Perspective view shown, No. 6
Figure a is a perspective view showing the whole of one sheet of the membrane-like body, Figure 6 b is a perspective view showing an example of a weight means for one sheet of the membrane-like body, and Figures 7 a, b, and c. are schematic cross-sectional views showing various usage conditions when the outer shell of the container shown in FIG. 4 has a watertight structure; FIGS. Figures 9a and 9b are schematic cross-sectional views showing the state of liquid filling in other conventional containers, respectively. 1,1'... Outer shell body, 2... Membrane bag, 3...
...One sheet of membranous material, 4,4'...chamber, 5...
...liquid, 12...weight.

Claims (1)

[Claims] 1. A flexible membrane-like body is inserted into a rigid outer shell,
In a container in which the membrane-like body is fixed to the middle and high part of the inner surface of the outer shell and swells upward as it is filled with liquid, a weight is locally applied to the bottom of the suspended membrane-like body that swells. 1. A container characterized in that the weight mounting portion is configured to drop below the liquid level during filling with liquid. 2. The container according to claim 1, wherein the membrane-like body is a bag along the inner surface of the outer shell, and the bag is filled with liquid. 3. The membrane-like body is a single sheet having a size along the inner surface of the upper half of the outer shell, the periphery of the sheet is watertightly fixed to the inner surface of the middle and high part of the outer shell, and the outer shell has at least a sheet. 2. The container according to claim 1, wherein the portion below the fixing portion is watertight, the sheet and the outer shell form a watertight chamber, and the chamber is filled with liquid. 4. The container according to claim 1, 2, or 3, wherein the horizontal cross-sectional shape of the container is a circle or a regular polygon, and the weight attachment portion is at the center of the bottom of the membrane-like body. 5. The container according to claim 1, 2, or 3, wherein the horizontal cross section of the container is rectangular, and the weight attachment portion is in the longitudinal direction of the bottom center of the cross section of the membrane body. .