JPS62271845A - Valve bag with water storage layer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention (Field of Industrial Application) The present invention is particularly directed to a bag for storing liquid, in which a flexible film is formed in a storage opening provided at one location of the bag. In a bag that has a conical valve attached to the inside of the bag and functions as a valve to prevent the contents from coming out even when the storage opening is closed, it is necessary to apply pressure to inject the contents. Gravity is eliminated and relies solely on the weight of the contents.

It provides a storage facility where injections can be made.

(Prior Art) Normally, when storing liquid in a bag or carrying it around, the opening of the bag is sealed.

This is because synthetic bags such as polyethylene bags (in the case of M-Jun bags, the opening must be closed by heat sealing, which requires a special sealing machine, so it can be done at home. It cannot be done easily.

It is impossible to seal the bag, especially if the liquid has leaked all the way to the top of the bag.

However, polyethylene bags and the like are suitable for storing liquids such as water and are ideal as emergency water containers in times of disaster.On the other hand, at home, for example, when going fishing, you can use water to wash your hands or cool fish. Since it is necessary to carry ice for drinking water, synthetic resin bags are required as simple and disposable water containers, but as mentioned above, synthetic resin bags have closed openings. Because it was impossible to do so, it could not be used.

For this reason, valve bags have traditionally been used as bags whose openings can be easily closed.

However, in conventional valve bags, the valve is made narrow because it is necessary to increase the tightness of the valve, especially when the content to be filled is liquid or gas, so injection using a nozzle or pressurized injection is not possible. It depends on the method and is generally not of the type that is easy to use.

Injection using a nozzle has the drawback that 17- is mixed in at the same time as injection due to a gap between the nozzle and the inner surface of the valve, and the mixture of air can cause acidity and contamination of the contents.

Although the pressurized injection method is industrially simple, it is generally inappropriate.

(Means for Solving the Problems) The present invention has been made in view of the above-mentioned points, and it eliminates the need for pressurization when injecting contents such as liquids, and simply uses the own weight of the contents. Make it possible to inject 1 ka,
Furthermore, the valve has a higher degree of tightness than conventional valve bags.

Hereinafter, the present invention will be specifically explained based on illustrated embodiments.

The first figure is a plan view of a conventional valve bag valve, and the second figure is a
FIG. 3 is a plan view showing the conical valve of the present invention, and the third figure is:
FIG. 1 is a vertical cross-sectional view schematically showing a storage bag equipped with a conical valve according to the present invention.

In No. 31, the symbol (+) in the figure indicates that the storage bag (3) is a conical valve.

The storage bag (1) is made of a synthetic resin film such as polyethylene, and the outer and inner edges are all sealed except for the storage opening (2) for storing the contents.

The conical valve (3) functions as a valve for the storage port (2), is formed into a conical shape using a flexible film such as soft polyethylene, and is joined to the storage port (2). It constitutes a joint part (4).

In Figure 2, the conical valve (3) has an acute angle with a sealing surface (5) extending from the top to the tip on one side of the double-layered valve, and the other side has a sealing surface (5) extending from the top to the tip. ) tip,
The sealing surface (f;) forms an acute angle up to a point on the line extending from the tip to a point slightly above the tip.

Due to this, when the inner surface is compressed, the inner surface of the conical valve (3) is made into a sieve with no gaps.

Seal surface (6) on the extension line from the tip of seal surface (6)
A discharge port (7) is formed up to the tip of 5) or a point slightly above the tip.

In particular, the outlet port (7) of the present invention has a sealing surface (
[1) is provided on the extension line, and the tip is the sealing surface (5)
Since it is connected to form a vertex, it has the same effect as being closed, and the degree of adhesion is significantly different from that of conventional ones.

In the plan view of the valve of the conventional valve bag shown in Figure 1, the valve is formed into a cylindrical shape using a flexible film made of synthetic resin, and both ω1j ends are connected to the sole surface from the upper end to the lower end. It forms an acute angle, and the outlet (7) has both l! llI
The sealing surface (5) at the end is usually provided at right angles to the two sealing surfaces (5) at the lower end.

This kind of valve has no choice but to be made narrow because the two sheets of film put together tend to open due to the internal pressure of the bag.

In Figure 2, (8) is the water reservoir, and the sealing surface (5
), the sealing surface (6), and the discharge port (7) are defined as the bottom, and the upper part is formed between the storage port (2) and the storage port (2).

Of course, the size of the opening of this storage port (2) and the storage port (2)
) The width of the opening of the conical valve (3), which is made up of a flexible spout, is large enough to easily fit, for example, the mouth of a water faucet or a juice bottle. Although it would be prudent to make it as narrow as possible, it is better to satisfy these requirements as narrowly as possible.

However, the conical valve (3) according to the present invention has a width of 60 mm and a height below the opening so that the contents can easily pass through the outlet (7) and be injected by its own weight. A water storage layer (8) with a diameter of about 80 mm is provided, and the weight of the contents stored in the layer is used to easily fill the water by expanding the outlet (7), which is formed to improve adhesion.
He is passionate about his ability to perform well.

(Function) When water is poured from the storage opening (2) of the storage bag (1), the water storage N (8) is gradually filled with water, and as the weight of the water increases, the outlet opening (7) is widened and poured. There is no need to worry about inhaling air.

When the storage bag (+) is filled with water, the pressure is applied to the conical valve (
3) and pressure-contacts both sides. Then, since the conical valve (3) is formed using a flexible film, both sides of the valve (3) come into close contact with each other, which has a synergistic effect with the action of the outlet (7), which is formed to improve the adhesion. Therefore, the storage opening (2) is completely closed by the conical valve (3), and the storage bag (1) is in the same state as if it were sealed.

(Effects) As described above, the present invention attaches a conical valve to the storage opening of the storage bag so that it functions as a valve, and then seals the storage opening after filling the storage bag with the contents. Even if you don't have it, this will close, eliminating the hassle of sealing the storage opening, and making it easy to fill without applying pressure, so you can easily fill the juice from the water tap or bottled juice at home. It can be easily filled with drinks, etc., and because of the increased adhesion, there is no need to worry about water leakage, and because it can be filled without inhaling air, the freshness of the contents can be maintained.
The effect is immeasurable.

[Brief explanation of drawings]

Fig. 1 is a plan view of a conventional valve bag valve, and Fig. 2 is a plan view of a conical valve of the present invention. FIG. 3 is a vertical sectional view schematically showing a storage bag equipped with a conical valve of the present invention.

Claims (1)

[Claims] Using a flexible film made of synthetic resin, one of the two ends of the two-ply cone with an opening at the top forms an acute angle, forming a sealing surface from the opening to the tip, and the other side forms an acute angle from the opening to the tip.
The valve forming the sealing surface is attached to a storage opening provided in one place of the bag, facing the inside of the bag, up to a point between the tip of the sealing surface or a point slightly above the tip. A valve bag with a water reservoir featuring