JP2002193327A - Structure of liquid container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rigid and inexpensive structure of a liquid container in which a bag itself includes properties for securely keeping its shape and a special composite fabric is not used. SOLUTION: The structure of a liquid container includes a cylindrical bag body 2 comprising eight struts 1 vertically fixed at intervals on a barrel, a tubular reinforcing body 3 to be inserted into the bag body 2 for reinforcing the barrel from the inside, a lower lid 4 which can keep a bottom of the bag body 2 spread and also absorb an impact when dropped, an inner bag 6 for sealing and holding a liquid inside the bag body 2 and a shape retaining frame 5 to be mounted on an upper surface of the bag body 2 for fixing an upper end of the strut 1 to its periphery.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a liquid container used as a container for transporting and storing a fluid article such as a liquid, a viscous liquid, and a powder.

[0002]

2. Description of the Related Art Heretofore, drums and plastic containers have been used to transport liquids. Since they are used repeatedly, they must be collected after use, and if food etc. are put in, they must be washed and sterilized after collection. Drum cans are heavy even in the air, so the transportation fee at the time of collection is not ridiculous,
Post-processing such as cleaning also requires considerable effort and cost.

[0003] The applicant has long been working on the development of a liquid container structure (container bag) made of woven fabric that is light and easy to handle. Filling the liquid and stabilizing independently, it will not lose its shape due to shaking during transportation, and it will not break even if it falls to any beat
It was almost a dream and it wasn't easy to realize. Nevertheless, the Applicant has steadily achieved the object in some inventions already applied for patents while making improvements in the improvement.

[0004]

Although a sufficiently practical product can be provided, since the container bag is made of cloth after all, it is determined from the beginning, such as an iron drum or a plastic container. There was a place where the shape did not have the shape, and the shape became stable only after the contents entered, and sometimes the shape became somewhat unstable unless the contents were filled up to the maximum. For customers who buy container bags, there has been some resistance to using such a replacement for drums.

Until now, the container bag fabric has been made to have rigidity and strength by bonding a paper sheet or a resin film to a woven fabric of a polyolefin resin flat yarn, but such a special composite fabric has been manufactured. Costly and difficult to recycle when disposed of.

The present invention has been made in view of the above-described circumstances, and has a property of maintaining the shape of the bag itself, and is durable and inexpensive without using a special composite fabric. An object of the present invention is to provide a structure of a liquid container.

[0007]

In order to achieve the above object, a liquid container structure according to the present invention has a cylindrical shape in which eight columns are vertically fixed to a body portion at intervals. A bag body, a tubular reinforcing body inserted into the bag body to reinforce the body portion from the inside, a lower lid capable of absorbing the impact of a drop while maintaining a state in which the bottom of the bag body is pushed out and expanded, and a bag body An inner bag for hermetically sealing and holding the liquid therein, and a shape-retaining frame that is placed on the upper surface of the bag body and fixes the upper end of the column around it. As for the number of struts, 4 to 12 struts were manufactured and various tests including a drop test were performed. As a result, it was confirmed that eight struts were most suitable.

[0008] In the structure of the liquid container having the above structure, the bag body has a firm shape by the action of the lower lid, the support, and the shape retaining frame. Regardless of the degree of filling, its shape can always be maintained. Of course, since the lower lid and the shape retaining frame are to be assembled when needed for the bag body,
The bag body is foldable and lightweight.

In the present invention, the structure of the body and the reinforcing member of the bag body is also important. When weaving the woven fabric, the warp is warped in a state of being stretched straight with tension, and the weft is driven into the warp in a zigzag manner, so the woven fabric is warped in the direction of the warp Is more elongated and less likely to break. In addition, when the container bag is dropped, the impact force is applied in the circumferential direction of the body portion, and it is most likely that the bag breaks when viewed from the height of the container bag, which is three-thirds of the whole from the bottom. It is in the range of about one.

[0010] In view of the above, as described in claim 2, the body portion and the reinforcing member of the bag body are formed by arranging the woven fabric of synthetic resin flat yarn so that the warp direction is horizontal. More than one sheet was stacked, the upper and lower edges were folded back, and the left and right edges were stitched together to form a tubular shape. This makes it difficult for the bag to break even when subjected to the impact of falling. As for the method of making the body part and the reinforcing body of the bag body, simply use a woven cloth for two.
It may be made from a stack of sheets, but it is convenient to use a flat endless woven cloth laid flat.

In the case where the shape retaining frame is a regular octagonal frame formed by laminating trapezoidal plates, the material can be efficiently removed. It can be manufactured at low cost and can have sufficient strength.

Further, the shape-retaining frame may be formed in a cross-girder shape. The cross-shaped frame is
Not only can it be manufactured inexpensively, it can be less distorted than a round or octagonal frame, and can hold the shape of the bag body more strongly.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show one embodiment of the structure of the liquid container of the present invention. 1 is a perspective view showing a completed state, FIG. 2 is a longitudinal sectional view, and FIG. 3 is an exploded perspective view. The structure of this liquid container has a cylindrical body that reinforces the body part of the bag body 2 from the inside inside a cylindrical bag body 2 in which eight columns 1 are vertically fixed at equal intervals to the body part. And a lower lid 4 for expanding the bottom of the bag body 2 to maintain its shape and absorb the impact of falling
And an inner bag 6 for holding the liquid in a sealed manner. The upper end of the column 1 is fixed around an octagonal shape-retaining frame 5 placed on the upper surface of the bag main body 2. It can always maintain a certain shape. In order to protect the inner bag 6, an inner lid 7 made of synthetic resin, plywood, or the like may be used.

The bag body 2 is formed by sewing a woven fabric using flat yarn of polypropylene or polyethylene. The woven fabric used is a base yarn of a high yarn count of 1500 to 1700 deniers and woven so that the driving density is 15 to 17 yarns / inch for both warp and weft yarns. The body portion of the bag body is constructed firmly by stacking the woven fabric by a special method as shown in FIG.

First, as shown in FIG. 4A, the endless woven fabric 8 is laid flat and crushed flat. In this case, the two woven fabrics are overlapped, and the warp direction V is the left-right direction and the weft direction H is the up-down direction. Subsequently, as shown in FIG. 4B, the upper and lower edges are folded back and overlapped. The folded amount h1 of the lower edge portion is set to be 1/3 to 1/2 of the height of the bag body. For example, if you want to make one meter high,
Fold back about 30 to 50 cm. Folding the upper edge is
This is because the opening of the bag main body is provided with tension, and the turnback amount h2 of 10 to 20 cm is sufficient. Subsequently, as shown in FIG. 4C, the left and right edges are overlapped and sewn to form a tubular shape, which becomes the body portion of the bag body 2. Thereafter, the fabric forming the bottom surface and the top surface is sewn to the upper and lower edges to form the bag body 2. The cloth 9 covering the upper surface is divided into four from the center to the periphery,
The bag body 2 is closed by tying the ends with a cord 10, and can be opened at the time of filling operation. The reinforcing member 3 is also formed in the same manner as the body portion of the bag body 2 described here.

On the outside of the body of the bag body 2, FIG.
As shown in FIG. 1, a wooden prism is vertically applied as a column 1, and a covering cloth 11 is covered so as to cover the column 1 and sewn to a bag body 2. The eight columns 1 are provided at equal intervals around the bag body 2. Further, at four positions between the columns 1, a suspension belt 12 for lifting the container bag with a crane or the like is sewn.

As shown in FIG. 6, the shape-retaining frame 5 is a regular octagonal frame formed by appropriately bonding eight trapezoidal plates 13 and 14 each having two different lengths. The longer trapezoidal plate 13 was attached to each other with the both ends overlapping each other to form an octagon, and the shorter trapezoidal plate 14 was bonded to the non-overlapping portions to form a complete double structure. By forming in this way, material can be removed without waste, and it can be made much cheaper than cutting out from a single plate.

After the shape-retaining frame 5 is placed on the upper surface of the bag body 2, the upper end of the column 1 is fixed to the surrounding corners. Some examples of the fixing means are shown in FIG. 7 (a). An L-shaped metal fitting 15 is passed over the shape retaining frame 5 and the support 1, and the nail 1 is fixed.
6 is fixed by driving into both. Fig. 7 (b)
The one shown in (1) is that one of the backing plates 32 of the hinge 30 is fixed to the shape-retaining frame 5 in advance with a nail 16 and can be fixed only by driving one nail 16 into the support 1 when assembling. is there. The hinge 30 shown in FIG.
Is fixed to the support 1 in advance with a nail 16, and a Velcro (registered trademark) 31a is fixed to both surfaces of the non-fixed lashing plate 32. 31b is provided on the shape retaining frame 5, and
2 on the shape-retaining frame 5, and the magic tapes 31a, 31b
It is fixed by joining. According to this method, the shape retaining frame 5 can be made detachable, which makes it suitable for repeated use. The fixing means is not limited to the one shown here, and a special metal fitting or the like which is detachable may be used.

FIGS. 11 and 12 show another embodiment of the shape retaining frame and the fixing means. The shape retaining frame 5 shown here is 4
Using two strips 33, 33, 33, 33, the two strips are welded in parallel so that two parallel strips intersect each other at right angles to form a so-called cross beam shape. ing. The shape-retaining frame 5 is placed on the upper surface of the bag body 2, and the upper ends of the eight columns 1 are fixed to eight end portions of each steel strip 33. The fixing means may be the one described above, but as a stronger fixing means, it is preferable to have a shape as shown in FIG. Here, the support 1 is attached to the end of the strip 33.
A contact piece 34 that fits on the back side of the support 1 is welded to form a connecting portion 36 with the support 1, and the upper end of the support 1 is applied thereto, from above the strip 33 and from the back side of the contact piece 34. From the two directions, the wood screws 35, 35 are screwed into the column 1 through the connecting portion 36, and the column 1 is firmly fixed to the shape retaining frame 5. The connecting portion 36 of the column 1 provided on the steel strip 33 may be a square pipe that surrounds the tip of the column 1 from the periphery. In this case, the shape-maintaining frame 5 in the shape of a girder is hardly distorted, and the columns 1 are fixed vertically to the shape-maintaining frame 5 and do not tilt, so that the shape of the container is more strongly held.

As shown in FIGS. 8 (a) and 8 (b), the lower cover 4 is composed of a cushion plate 19 and a receiving plate 18 around which an iron core 17 is placed. The receiving plate 18 is composed of two circular woven fabrics 2.
1, the ring-shaped iron core 17 was sandwiched from above and below, and the inside and outside of the iron core 17 were formed by sewing with a sewing machine. Cushion body 19
Is formed by bonding a woven fabric 21 to the upper and lower surfaces of a circular cushioning material 20. As the cushioning material 20, foamed resin used for tatami floors or the like, pulp board, double carton cardboard, or the like can be used. In addition, the bag body 2 is used as the woven fabric 21.
The same flat yarn cross sheet is used. FIG. 9 shows another embodiment of the lower cover 4, in which two layers of the cushioning material 20 are covered with a woven fabric 21 and sewn. The lower lid 4 may be simply inserted into the inside of the bag body 2 or may be directly sewn as the bottom of the bag body 2.

The inner bag 6 is made of a polyethylene film, and is provided with a discharge port 22 for taking out the liquid therein, as shown in FIG. Inside the bag body 2, there is a fixing plate 23 that passes through the discharge port 22 and holds it so as not to move. FIG. 10 shows another form of the outlet, using a polyethylene tube as the inner bag 6,
A resin pipe 25 is inserted into the lower opening and squeezed to form an elongated discharge port 22 that can be bent freely. The bag body 2 has a discharge tube 26 formed of a woven cloth through which the discharge port 22 is inserted. The discharge port 22 and the discharge tube 26 are normally bent upward so that the discharge port 22 and the discharge tube 26
And fix it with

The liquid container structure having the above-described structure was actually manufactured and subjected to various tests. However, it has a sense of stability and strength incomparable with the conventional woven container bag. That was confirmed. Even if it was filled with water and dropped from a height of 1.2 m, the bag did not break, and the independence was still maintained. In addition, the provision of the suspension belt 12 is economical because a pallet is not required for moving.

[0023]

According to the structure of the liquid container of the present invention, a support is provided on the body of the bag body, the shape of the bottom surface of the bag is maintained by the lower lid, and the structure of the container placed on the bag body is maintained. By fixing the upper end of the column around the formwork, it was possible to always maintain a fixed shape firmly regardless of whether the contents were filled. Therefore, it has the same sense of stability as a drum can, does not lose its shape during transportation, can be stacked, and has a much lighter weight and is easier to handle than a drum can.

Further, as described in claim 2, the body portion of the bag body is made of a woven fabric so that the direction of the warp resistant to impact pulling is in the circumferential direction of the bag body.
In addition, the lower part of the bag that is easy to break is reinforced by overlapping it, and at the same time, the reinforcing body formed in the same way is applied from the inside and composed of four or more woven fabrics, and the lower lid can absorb the impact of falling Because of the use of things, it became extremely strong against the impact of the fall.

Further, since the bag body uses a woven fabric made of a synthetic resin flat yarn without reinforcing it by attaching another member such as a paper sheet, the bag body can be provided at a low cost and can be disposable. Even if you do, there are enough economic benefits. It also facilitates disposal and recycling of the container bag.

According to the third aspect of the present invention, the shape retaining frame can be made robust at low cost.

Further, according to the fourth aspect of the present invention, since the shape-retaining frame is less likely to be distorted, the shape of the container is more strongly maintained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a structure of a liquid container according to the present invention.

FIG. 2 is a longitudinal sectional view of the structure of the liquid container according to the present invention.

FIG. 3 is an exploded perspective view of the structure of the liquid container according to the present invention.

FIGS. 4A, 4B, and 4C are diagrams illustrating a procedure of manufacturing a body portion and a reinforcing body of the bag body.

FIG. 5 is a perspective view showing a state in which a support is fixed to a bag body.

FIG. 6 is a plan view showing a configuration of a shape retaining frame.

7 (a), (b) and (c) are perspective views showing fixing means of the shape retaining frame and the support.

FIGS. 8A and 8B are a plan view and an A of an embodiment of a lower cover.
It is -A sectional drawing.

FIG. 9 is a perspective view showing another embodiment of the lower lid.

FIG. 10 is a perspective view showing another embodiment of the outlet.

FIG. 11 is a perspective view showing another embodiment of the shape retaining frame.

FIG. 12 is a perspective view showing another embodiment of the fixing means of the shape retaining frame and the column.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Prop 2 Bag body 3 Reinforcement 4 Lower lid 5 Shape retaining frame 6 Inner bag V Warp direction

Claims (4)

[Claims] 1. A cylindrical bag body (2) having eight pillars (1) fixed vertically to a body portion at intervals.
A tubular reinforcing body (3) inserted into the bag body (2) to reinforce the body portion from the inside, and a lower part capable of absorbing the impact of a drop while maintaining the state where the bottom of the bag body (2) is pushed open. A lid (4), an inner bag (6) for sealing and holding the liquid inside the bag body (2), and an upper end of the support (1) fixed on the upper surface of the bag body (2) while being placed on the upper surface of the bag body (2). A structure for a liquid container, comprising: a shape retaining frame (5). 2. The body part and the reinforcing body (3) of the bag body (2) are made of a woven fabric made of synthetic resin flat yarn so that the warp direction (V) is horizontal.
2. The structure of a liquid container according to claim 1, wherein the liquid container is formed by stacking at least two sheets, further folding the upper and lower edges, and then sewing the left and right edges together to form a cylindrical shape. body. 3. The trapezoidal frame (5) is a trapezoidal plate (13,
The structure of a liquid container according to claim 1 or 2, wherein the structure is a regular octagonal frame formed by laminating (14). 4. The structure of a liquid container according to claim 1, wherein the shape retaining frame (5) has a cross-girder shape.