JPS638628Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to containers for packaging fluids such as liquid seasonings, and in particular to an outer container made of paperboard such as corrugated paper and an inner container that seals the fluid. This invention relates to a device that uses a pouring body that is inserted into the inner bag together with the outer container when storing the bag and taking out the fluid.

(Prior Art) Conventionally, as shown in FIG. 5, a packaging container A of this type is known, which is made of paperboard and whose inner surface is waterproofed to seal the fluid. There is.

This simple opening means has a sharp end a at one end.
It is known to use a cylindrical spouting body B having a cylindrical spouting body B, to insert the sharp end a into a packaging container A, and to pour out the fluid C contained therein from the spouting body B.

However, when using this type of structure, when the sharp end a of the pouring body B is inserted into the packaging container A, the wall surface b of the packaging container A is broken at the sharp end a as shown in FIG. hangs down into the packaging container A, and the broken edge is exposed in the packaging container A. For this reason, when pouring out the fluid C contained in the pouring body B, the fluid C penetrates through the broken edge which is not waterproof, causing the area around the insertion site of the pouring body B to swell and become soft. There is an inconvenience that the pouring body B is not fixed securely.

In particular, in order to increase the size of such packaging containers, the structure is such that an inner bag body for sealing the fluid is housed in an outer container made of corrugated paper.
As mentioned above, the penetration of fluid into the outer container at the point where the injection body is inserted becomes an extremely important problem.

(Problems to be Solved) The present invention solves the above-mentioned inconveniences, reliably prevents fluid from penetrating into the packaging container using paperboard at the point where the spouting body is inserted, and To provide a fluid-tight packaging container that can be securely fixed to a container.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides an outer container made of paperboard that houses an inner bag body for sealing a fluid, so that when the container is opened, one end is sharpened. In the device for pouring out the fluid in the inner bag by inserting the formed cylindrical pouring body, an opening portion surrounded by a break line is provided on the wall surface of the outer container, and a periphery of the inner surface of the outer container of the opening portion is provided. At the same time, a soft resin plate member is attached to the inner surface of the inner bag so as to match the position of the periphery of the opening part and surround the periphery of the opening part. A flange piece is provided in the circumferential direction of the spouting body, and a protrusion is provided in the circumferential direction from the flange piece at a distance from the sharp end, the opening part is opened, and the spouting body is poured through the opening. When inserted into the inner bag body, the collar piece is locked to the outer surface of the outer container, and the protrusion is tightly locked to the inner surface of the plate member.

(Example) A more detailed explanation will be given below with reference to FIGS. 1 to 4 showing an example of implementation of the present invention.

In the figure, reference numeral 1 denotes an outer container made of corrugated paper, in which an inner bag body 2 made of an impermeable film made of aluminum foil laminated with synthetic resin is housed.

The outer container 1 includes a pair of outer flaps 4 and a pair of inner flaps 5 that form sealing portions at the upper and lower ends of a rectangular columnar body 3. The inner bag body 2 is adhered along the inner surface of the outer container 1.

As shown in the first figure, a circular breaking line 6 is made across the abutting position of the outer flaps 4, 4, and an opening part 7 is formed.
As shown in the second figure, an opening 8 is provided in the inner flap 5 which overlaps the outer flaps 4 and 4, and is cut out to match the position of the opening part 7. When the inner bag body 2 is located at the sealed portion of the outer container 1, its outer surface is adhered to the peripheral edge of the opening 8 of the inner flap 5 to cover and seal the opening 8. The inner surface of the inner bag body 2 is surrounded by a plate member 9 having a circular opening made of an elastic soft resin such as foamed polyethylene resin, so as to match the position of the peripheral edge of the opening 8. Let it be pasted.

On the other hand, the spouting body 10 for pouring out the fluid in the inner bag body 2 housed in the outer container 1 has its main body 1
1 and a cap 12. The main body 11 has a cylindrical body part 13 provided with a pouring body and a sharp end part 14 for piercing into the container 1, and a flange piece 15 is formed around the entire circumference of the cylindrical body part 13. A spiral protrusion 16 is formed at a distance from the flange piece 15 toward the sharp end 14. Reference numeral 17 denotes a hole that communicates the sharp end portion 14 and the cylindrical body portion 13.

Next, to explain the usage condition, the opening part 7 on the outer flap 4 of the outer container 1 in the state shown in FIG. . Next, as shown in the third figure, the main body 11 of the pouring body 10 is attached to its sharp end 14.
When the inner bag body 2 is inserted into the opening 8 to cover the opening 8, and the main body 11 of the spouting body 10 is pushed in while rotating, a spiral protrusion of the spouting body 10 is formed as shown in the fourth figure. The strip 16 is located on the inner surface of the inner bag body 2 and engages with a plate member 9 having an opening whose inner diameter is smaller than the diameter of the protruding strip 16, pinching the portion between the collar piece 15 and the threaded strip 16, The plate member 16 is tightly locked.

Therefore, the spout main body 11 is securely fixed, and since the plate member 9 is interposed between the inner surface of the inner bag body 2 and the spiral protrusion 16, it is possible to prevent the fluid from penetrating into the outer container 1. blocked.

In the above embodiment, the opening portion 7 of the outer container 1 was provided at the portion where the inner and outer flaps 4 and 5 overlap, but in the present invention, it may be provided at another location, and the opening portion 7 of the outer container 1 When employing this configuration, the unsealing operation is easy because the unsealing can be done simply by pressing the unsealing portion 7 of the outer flap 4 into the opening 8 of the inner flap 5.

Furthermore, although the protrusion 16 provided on the spout main body 11 in the embodiment described above was formed in a spiral shape, in the present invention, the protrusion 16 may have another shape as long as the protrusion 16 has a structure that tightly locks the plate member 9. It may be hot.

(Effects) As is clear from the above explanation, in accordance with the present invention, an opening portion surrounded by a break line is provided on the wall of the outer container made of paperboard that houses the inner bag body for sealing the fluid, so that the pouring material can be easily removed. Since the wall surface of the unsealing part is removed before inserting the injection body, the broken edge of the outer container does not hang down into the inner bag body when the injection body is inserted, as in the conventional case. Further, the outer surface of the inner bag is adhered to the periphery of the inner surface of the outer container in the opening part, and a soft resin material is attached to the inner surface of the inner bag to match the position of the periphery of the opening part and surround the periphery. While pasting the plate member, a flange piece is provided in the circumferential direction of the spouting body, and a protrusion is provided at a distance from the flange piece toward the sharp end, and the spouting body is placed in the opened opening part. When inserted, the collar piece is locked to the outer surface of the outer container, and the protrusion is tightly locked to the inner surface of the plate member, so that the fluid in the inner bag body is reliably prevented from penetrating into the outer container. At the same time, there is an effect of providing a fluid-tight packaging container that can securely fix the pouring body.

[Brief explanation of drawings]

Figures 1 to 4 show an example of the implementation of the present invention, with Figure 1 being a partially cutaway perspective view of the packaged state, Figure 2 being a cross-sectional view taken along the line -- in Figure 1, and Figure 3. 4 is a perspective view of the product in use, FIG. 4 is a cross-sectional view taken along the line -- in FIG. 3, and FIG. 5 is a cross-sectional view of the conventional product. DESCRIPTION OF SYMBOLS 1... Outer container, 2... Inner bag body, 6... Break line, 7... Opening part, 9... Plate member, 10... Pouring body, 14... Sharp end, 15... Flange piece .

Claims (1)

[Scope of Claim for Utility Model Registration] 1. Inserting a cylindrical pouring body with one end formed with a sharp point into an outer container made of paperboard that houses an inner bag for sealing a fluid when the container is opened. and pouring out the fluid in the inner bag, an opening portion surrounded by a break line is provided on the wall of the outer container,
The outer surface of the inner bag is adhered to the periphery of the inner surface of the outer container of the unsealing part, and the outer surface of the inner bag is surrounded by the inner surface of the inner bag in a manner that corresponds to the position of the periphery of the unsealable part. A plate member is attached, a flange piece is provided in the circumferential direction of the pouring body, and a protrusion is provided in the circumferential direction from the flange piece at a distance from the flange piece toward the sharp end, and the opening part is opened. A fluid characterized in that when the pouring body is inserted into the inner bag body through the spout, the flange piece is locked to the outer surface of the outer container, and the protrusion is tightly locked to the inner surface of the plate member. Sealed packaging container. 2. The outer container has a sealing part having an inner flap and an outer flap, the outer flap is provided with the opening part, and the inner flap, which overlaps the opening part of the outer flap when the container is sealed, has a shape that matches the opening part. A fluid-tight packaging container according to claim 1, characterized in that the container is provided with an opening.