JP2001002129A - Liquid container and method for manufacturing it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a manufacturing cost for a liquid container and facilitate its manufacturing work. SOLUTION: This liquid container 1 is comprised of a flexible bag 10 filled with liquid in it; a reference member 20 formed into a rectangular frame shape by a relatively rigid material quality and connected to the inner surface of the bag 10; and a pouring port 24 integrally formed with the reference member 20 and protruded out of the bag 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid container for containing a liquid and a method for producing the same, and more particularly to a liquid container for storing a viscous liquid such as ink used in an ink self-priming copying machine. And a method for producing the same.

[0002]

2. Description of the Related Art As a liquid container of this kind, for example, there is one disclosed in Japanese Utility Model Application Laid-Open No. 64-17926 of the present applicant. The liquid container includes a relatively rigid rectangular reference body having a spout projected from a lower edge of an outer surface, and a flexible bag body having one end joined to a cylindrical frame provided on a peripheral edge of the reference body. It is composed of For example, heat sealing is applied to the joint between the cylindrical frame portion of the reference body and the flexible bag body.

[0003] The liquid container thus constructed is usually used in a state of being housed in a cardboard box. in this case,
The liquid containers are positioned relative to each other when the reference body is aligned with one side of the box, and the spout is projected outside through a hole provided on one side of the box. Therefore, if the liquid inlet is connected to this spout, the liquid filled in the liquid container can be sucked out.

[0004]

In the above-described liquid container, the reference member forms one surface of the liquid container. Therefore, this reference body needs to be in the form of a plate having a predetermined size. In addition, the above-mentioned cylindrical frame portion is indispensable in this reference body in order to obtain a sufficient bonding force with the flexible bag body.

As a result, in the above liquid container,
When manufacturing this, it is necessary to prepare a reference body in which all five sides are plate-shaped, that is, a reference body that requires an extremely large amount of material is required, which leads to a significant increase in manufacturing cost. become.

Further, in the above liquid container, prior to joining the reference body and the flexible bag, it is necessary to perform an operation of fitting the opening of the flexible bag to the cylindrical frame of the reference body. Become. Such a fitting operation can be easily performed when both are members having rigidity. However, in the above-described liquid container, the bag body has flexibility, and the opening shape is arbitrarily deformed when the bag body comes in contact with the cylindrical frame portion which is a rigid body. The operation becomes extremely complicated.

SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a liquid container and a method for manufacturing the same, which can reduce the manufacturing cost and facilitate the manufacturing operation.

[0008]

According to the present invention, there is provided a bag body which is flexible and is filled with a liquid, and is formed in a rectangular frame shape by a relatively rigid material. The liquid container is provided with a reference body joined to the reference body, and a spout formed integrally with the reference body and protruding outside from the bag body.

Further, in the present invention, a bag body which is flexible and is filled with a liquid, and a reference frame formed in a rectangular frame shape by a relatively rigid material and joined to the inner surface of the bag body. And a spout that is formed integrally with the reference body and that protrudes out of the bag body, the method comprising the steps of: A step of configuring, a step of opening an insertion hole through which the spout integrated with the reference body is formed in the tubular body, and the spout and the reference body in a state where the spout is projected from the insertion hole. Are joined to the inner surface of the cylindrical body, respectively, and the steps of closing both end openings of the cylindrical body to form a bag body are included.

In this case, the step of closing the openings at both ends of the cylindrical body includes the steps of closing one end opening of the cylindrical body, and filling a liquid inside the cylindrical body.
Closing the other end opening of the cylindrical body.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing one embodiment. FIG. 1 shows an embodiment of the liquid container according to the present invention. The liquid container 1 exemplified here is particularly suitable for containing a viscous liquid such as ink used in an ink self-priming copying machine, and includes a bag body 10 and a reference body 20. ing.

The bag 10 is formed of a thin flexible sheet material of translucent plastic, and has a sealed bag shape.

On the other hand, the reference body 20 is formed by integrally molding a frame-shaped portion 21 and a baffle plate portion 22 with relatively rigid plastic. The frame portion 21 is a plate-like member having a rectangular frame shape, and has a pair of reinforcing ribs 23 inside the frame. The reinforcing ribs 23 extend so as to be parallel to each other inside the frame, and respective ends of the reinforcing ribs 23 connect the ends of the frame 21 to each other.
The baffle plate portion 22 is a plate-like member projecting perpendicularly from the bottom surface of the frame-like portion 21 and connects the pair of reinforcing ribs 23 to each other.

The reference body 20 has a spout 24 at one corner of the frame 21. The spout 24 has a screw portion 24a at the distal end and a flange portion 2 at the proximal end.
5 having a cylindrical shape. This spout 24
Is connected to the frame portion 21 via the flange portion 25 so as to protrude from the upper surface of the frame portion 21 at right angles. The spout 24 is provided with the screw 2
The cover 30 can be detachably attached to the cover 4a.

When manufacturing the liquid container 1 having the above-described structure, first, as shown in FIG.
1. A reference body 20 composed of a reinforcing rib 23 and a baffle plate 22 and a spout 24 are integrally formed, and a thin translucent plastic formed to be long by an inflation method. A tubular sheet material 10 'is prepared by cutting a tube having an appropriate length into pieces. The tubular sheet material 10 'is provided with an insertion hole 11 through which the spout 24 can be inserted. As shown in FIG. 2B, the flexible tube that is cut to obtain the tubular sheet material 10 'is a pair of gussets (gores) 10 that are folded inward.
a, 10a, and after cutting, a pair of gussets 10a, 10a.
It is preferable to use a material that becomes a square tube corresponding to the outer shape of the reference body 20 when a is extended and straightened. This is because the tubular sheet material 10 'can be easily formed into a rectangular bag by this. Here, reference body 2
Reference numeral 0 denotes a rectangular frame-shaped plate-shaped member as described above. Therefore, in the case of manufacturing this, the amount of material is extremely small as compared with the conventional one, and the manufacturing cost can be greatly reduced, and the weight can be reduced.

Next, the spout 24 is connected to the insertion hole 11 described above.
After the reference body 20 is applied to the inner peripheral surface of the tubular sheet material 10 ′ in a state where the flange portion 2
The reference member 20 and the reference member 20 are respectively joined to the cylindrical sheet material 10 ′ so that the reference member 20 and the peripheral surface of the bag member 10 constitute one surface of the liquid container 1. In this case, at the time of joining the tubular sheet material 10 ′ and the reference body 20, the work of fitting the two is unnecessary, so that the work can be performed easily. Reference body 2
0 is to be joined to the inner peripheral surface of the tubular sheet material 10 ', so that there is no sufficient space between itself and the tubular sheet material 10' without providing a tubular frame around it as in the conventional case. Bonding force can be secured. Note that heat sealing may be applied to the joint between the flange portion 25 of the spout 24 and the tubular sheet material 10 'and the joint between the reference body 20 and the tubular sheet material 10'.

Next, from the above-mentioned state, one end of the tubular sheet material 10 'is closed. Furthermore, if the inside of the tubular sheet material 10 'is filled with a liquid, for example, ink, and finally the other end of the tubular sheet material 10' is closed, the tubular sheet material 10 'is sealed in a square hexahedron. The liquid container 1 in which the bag 10 is filled with ink is completed. Even when both ends of the tubular sheet material 10 'are closed, heat sealing may be applied to each.

The liquid container 1 thus constructed is, for example,
As shown in FIG. 3, it is accommodated in a cardboard box body 40 and installed at a predetermined place of the ink self-priming copying machine. In this case, the liquid container 1 is, as shown in FIG.
When 0 coincides with one side surface of the box 40, mutual positioning is performed, and the spout 24 protrudes outside from a hole 41 provided on one side surface of the box 40. Therefore, if the ink inlet is connected to the spout 24 after removing the lid 30 from the spout 24, the ink filled in the liquid container 1 will be sucked out to the printing press.

In this case, when the ink filled in the liquid container 1 is sucked out from the spout 24, the bag body 10 is sequentially and easily deformed in accordance with the decrease of the ink.
As shown in (b), when the remaining amount of the ink filled in the liquid container 1 becomes small, the flexible bag body 10 is deformed so as to stick to the reference body 20. However, in the liquid container 1, since the baffle plate portion 22 is provided on the bottom surface of the reference body 20, it is possible to prevent the bag body 10 from blocking the spout 24, and to fill the filled ink into the printing machine. Can be supplied to

Thus, in the liquid container 1, the bag 1
Since the reference body 20 is joined to the inner peripheral surface of the liquid container 1 together with the inner peripheral surface of the bag body 10, the reference body 20 can be formed in a frame shape. become. In addition, since the reference body 20 is joined to the inner peripheral surface of the bag body 10, the joining force with the bag body 10 is sufficiently secured without providing a cylindrical frame portion around the reference body 20 unlike the conventional one. Will be able to do it. As a result, according to the liquid container 1, it is possible to reduce the manufacturing cost and secure the weight while securing the desired functions.

Furthermore, since there is no need to perform an operation of fitting the bag body 10 and the reference body 20 when joining them,
The manufacturing operation can be easily performed.

In the above-described embodiment, the frame-shaped portion 2
1 illustrates a reference body 20 having a pair of reinforcing ribs 23 and a baffle plate 22 parallel to each other, but the present invention is not limited to these.

For example, as shown in FIG. 5A, the reference body 20 may be constituted only by the frame portion 21. Also,
As shown in FIGS. 5B and 5C, the frame 21 is provided with only the diagonally pointed X-shaped or cross-shaped reinforcing ribs 23 to form the reference body 20, or as shown in FIG. ) And (e), it is also possible to form the reference body 20 by providing only the baffle plate portion 22 in the frame portion 21.

In the above-described embodiment, the liquid container 1 is used while housed inside the box 40, but the box 40 is not always necessary. further,
Although the ink used in the ink self-priming copying machine is exemplified as the liquid to be filled in the inside, other liquids can be filled as long as the liquid is used. In this case, the liquid does not necessarily have to be viscous.
When taking out the filled liquid, it is not always necessary to connect the suction port, and it is of course possible to simply pour the liquid from the spout 24 from which the lid 30 is removed.

Further, in the above-described embodiment, one end of the tubular sheet material 10 'is closed, then the liquid is filled, and then the other end is closed. After closing both ends of the material 10 ′, the inside of the bag 10 may be filled with the liquid through the spout 24.

[0026]

As described above, according to the present invention,
Since the reference body is joined to the inner surface of the bag body and this reference body forms one surface of the liquid container together with the flexible bag body, it can be formed in a frame shape. Moreover, since the reference body is bonded to the inner surface of the bag body, it is possible to sufficiently secure the bonding force with the flexible bag body without providing a cylindrical frame portion around the reference body as before. become. Therefore, according to the present invention, it is possible to reduce the manufacturing cost and to reduce the weight while securing the desired functions of the liquid container. Further, the work of fitting the bag body and the reference body at the time of joining them is not required, and the manufacturing work can be facilitated.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a liquid container according to the present invention.

FIG. 2A is an exploded perspective view showing a method for manufacturing the liquid container shown in FIG. 1, and FIG. 2B is a perspective view of a tube obtained by cutting the tubular sheet material of FIG.

FIG. 3 is a perspective view showing the liquid container shown in FIG. 1 and a box housing the liquid container.

4A and 4B show a state in which the liquid container shown in FIG. 1 is housed in a box body, wherein FIG. 4A is a cross-sectional view showing a state filled with liquid, and FIG. It is.

5A to 5D are perspective views showing a modification of the reference body applied to the liquid container according to the present invention, and FIG.
FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Liquid container 10 Bag body 10 'Cylindrical sheet material 11 Insertion hole 20 Reference body 21 Frame part 22 Baffle plate 23 Reinforcement rib 24 Outlet 24a Screw part 25 Flange part 30 Cover body 40 Box 41 Hole

Claims (3)

[Claims] 1. A bag body having flexibility and filled with a liquid, a reference body formed in a rectangular frame shape by a relatively rigid material, and joined to an inner surface of the bag body, And a spout formed integrally with the reference body and protruding out of the bag body. 2. A bag body having flexibility and being filled with a liquid, a reference body formed in a rectangular frame shape by a relatively rigid material and joined to an inner surface of the bag body, And a spout formed integrally with the reference body and projecting out of the bag body, comprising: a step of forming a flexible tubular body to be made into a bag body. And, in the cylindrical body, a step of opening an insertion hole through which a spout integrated with the reference body, and in a state where the spout is projected from the insertion hole, the spout and the reference body respectively A method for manufacturing a liquid container, comprising: a step of joining to an inner surface of a tubular body; and a step of closing both end openings of the tubular body to form a bag. 3. A step of closing both ends of the cylindrical body, a step of closing one end of the cylindrical body, a step of filling a liquid inside the cylindrical body, and a step of filling the inside of the cylindrical body with a liquid. 3. The method for producing a liquid container according to claim 2, further comprising the step of closing an opening at the other end of the state body.