JP2584062Y2 - Liquid storage bag - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid storage bag.

[0002]

[Prior art]

A container for accommodating liquid cosmetics or the like is formed of a thick synthetic resin or glass having shape-retaining properties, and conventionally, the contents are generally discarded after use. . However, with the recent worsening of garbage disposal, it has been demanded to reduce the amount of waste as much as possible.

[0003] Against such a background, recently, the contents are stored in a simple refill bag, the contents are refilled, and only the refill bag is discarded. Since it is preferable to reduce the weight and bulk of these bags as much as possible at the time of disposal, for example, the liquid is hermetically stored inside the bag made by bonding the inner peripheral surfaces of the plastic film to each other. The storage section is opened by cutting and removing a part of the corner of the bag, and then the storage section is pressed to discharge the contents from the opening.

However, in this type of bag, the opening is too small to cut and remove the corner to open, and it takes time to pour out, or the bag is too large to be removed from the container opening for injecting the liquid. If the cutting angle is poor, the liquid will be poured out in a direction that does not exist, and it will be necessary to inject the liquid from above the mouth and neck of the container to be injected. There is a disadvantage of leprosy.

[0005] Further, once opened, there is a disadvantage that the contents must be kept open unless all the contents are transferred.

The present invention proposes an excellent liquid container which solves the above-mentioned disadvantages of the prior art.

[0007]

In order to solve the above-mentioned problems, the bag according to the present invention is manufactured by fixing the inner surfaces of the peripheral portion of a synthetic resin sheet having a predetermined shape to each other by an appropriate fixing means such as fusion or the like. A liquid storage bag comprising a bag main body 2 provided with a storage section 4 for sealing liquid therein, and a spout 3 fixed between a front sheet 2a and a rear sheet 2b at an upper corner of the main body 2. The pouring plug 3 has a pair of triangular plate-shaped substrates 5a and 5b having upper and lower outer edges fixed to inner surfaces of upper corners of the front and rear sheets 2a and 2b, respectively. The inclined sides of the substrates are connected to each other in a bendable manner via a hinge portion 6 to seal the opening of the bag body, and the short cylinder 8 protruding from the peripheral edge of the pouring hole 7 formed in one of the substrates is connected to the other substrate. It is configured to be detachably fitted to a locking projection 9 projecting from a corresponding position.

[0008]

In the closed state of the pouring hole 7 in FIG. 4, both the substrates 5a and 5b are opened, the short cylinder 8 is removed from the outer surface of the locking projection 9, and the pouring hole 7 is opened as shown in FIG. When the main body 2 is squeezed, the liquid is discharged. If there is residual liquid in the bag body 2, the short cylinder 8
May be fitted to the locking projection 9 to close the pouring hole 7.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 4 show an embodiment of the present invention. In the drawings, reference numeral 1 denotes a liquid storage bag. The bag 1 includes a bag body 2 and a spout 3.

The bag body 2 is formed by cutting a sheet such as a synthetic resin single sheet or a laminated sheet of synthetic resin sheets, a laminated sheet of synthetic resin sheet and paper into a predetermined shape, and cutting the inner peripheral surfaces thereof. The bag is formed by fixing with appropriate fixing means such as fusion or bonding, and a storage section 4 for storing liquid is formed inside. In the present embodiment, two large sheets having a vertically long rectangular shape and a horizontally long rectangular small sheet having the same width as the sheet are prepared, and a predetermined portion of the inner peripheral surface of each sheet is formed so as to serve as the small sheet bottom wall. A known form called a so-called standing pouch in which a bag is formed into a vertically long rectangular shape by fusing in a band shape, etc., is configured so that the bottom portion expands in an elliptical shape when the liquid is filled therein. is there.

Incidentally, the present invention is not limited to the bag having such a form. For example, a bag formed by folding a single rectangular sheet in half and fusing the three-side opening portion, or two bags. Can be applied to a bag formed by laminating rectangular sheets and fusing the four sides.

In the present invention, the spout 3 is formed between the front sheet 2a and the rear sheet 2b at the upper corner of the bag body 2 by means of an appropriate fixing means such as adhesion or fusion.

The spout 3 is made of a synthetic resin integrally formed by injection molding or the like. The upper edge and the outer edge of the outer surface are formed in a belt shape on the inner surface of the upper corner of the front sheet 2a constituting the bag body 2. Each of the substrates 5a has a fixed triangular plate-shaped front substrate 5a, and a triangular plate-shaped rear substrate 5b having an outer upper edge and an outer side edge fixed in a strip shape to the inner surface of the upper part of the rear sheet 2b. ,
The inclined sides 5b are connected to each other via hinges 6 so as to be able to bend, and the opening of the bag body 2 is sealed. Above rear board
An injection hole 7 communicating with the inside of the bag body 2 is formed at the center of the bag body 2, and a short cylindrical portion 8 having a cylindrical shape is protruded from a periphery of the injection hole 7. A cylindrical locking projection 9 is protruded at a position corresponding to the short cylinder portion 8. It is closed.

The bag 1 shown in FIG. 1 shows a state before the contents are filled. The bag 1 has an opening 10 for filling on the upper surface, and this portion is sealed after the contents are filled. ing.

[0016]

[Effect of the Invention] As described above, the bag of the present invention has the above-described structure, so that the stored liquid can be stored in a good state even if the stored liquid is poured out and the remaining liquid is left.

Further, since the size of the spouting hole is constant, the opening is too large or too small, as in the conventional opening of the bag body by cutting and removing the corners. There is no problem, and when it is discarded, only a small spout is attached, so it can be rolled up and discarded, and the weight is small.

Further, since only a small spout is fixed to this kind of conventional bag, it is easy to manufacture and can be manufactured at low cost.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a perspective view of a main part of the embodiment.

FIG. 3 is a perspective view of a main part of the same embodiment in a state where an outlet is opened.

FIG. 4 is a vertical sectional view of a main part of the embodiment.

[Explanation of symbols]

2 ... bag body, 3 ... spout, 4 ... storage section, 5a ... front substrate,
5b: rear substrate, 6: hinge portion, 7: pouring hole, 8: short tube portion, 9: locking projection

Claims (1)

(57) [Scope of request for utility model registration] 1. A bag body 2 comprising a synthetic resin sheet having a predetermined shape and inner surfaces of peripheral portions fixed to each other by an appropriate fixing means such as fusion to form a bag, and a storage portion 4 for sealing a liquid therein is provided. And a front seat 2a at an upper corner of the main body 2.
And a spout 3 fixed between the rear sheets 2b, wherein the spout 3 has an outer upper edge portion and an outer side edge portion located on the upper portions of the front and rear sheets 2a, 2b. A pair of triangular plate-shaped substrates 5a and 5b respectively fixed to the inner surface of the corner portion, and the inclined side portions of each substrate are connected to each other via a hinge portion 6 in a bendable manner to seal the opening of the bag body. A liquid storage bag characterized in that a short cylinder 8 protruding from a peripheral edge of a pouring hole 7 formed in a hole is detachably fitted to a locking projection 9 protruding at a corresponding position of the other substrate. .