JPH048309B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for filling and discharging containers of fluids, such as fluids and fluidized powders.

(Prior Art) Bag-in boxes or similar containers are well-known, in which a flexible bag is housed inside an outer box, and alcohol, juice, and other beverages are taken out from an outlet attached to the bag. However, in conventional bag-in boxes, etc., a fragile membrane is provided at the outlet to prevent the contents from being taken out unnecessarily.

(Problems to be Solved by the Invention) With the outlet provided with such a fragile membrane, the contents cannot be taken out unless the fragile membrane is broken. However, in this method, the take-out port cannot be used as a filling port, so the bag must be provided with another filling port. In addition, in this conventional technology, the fragile membrane is formed using a part of the bag of the bag-in box, so if the suitability of the material of the bag is improved, the penetration ability when breaking the fragile membrane becomes worse. If the pierceability of the bag is improved, there is a problem in that the suitability of the bag as a container becomes worse.

The present invention solves this problem, allows filling and unloading to be performed using the same port, and allows the material of the fragile membrane to be selected by considering only the pierceability.
It is an object of the present invention to provide a method for filling and discharging fluid from a container.

(Means for Solving the Problems) According to the present invention, after filling a container with fluid through a filling and discharging tube provided in the container, a through-socket hole is provided inside the container, and the inner end thereof is connected to a dedicated local area. By tightly fitting the lid, which is made up of a brittle membrane, to the open end of the filling/unloading cylinder, the inside and outside of the container are shut off and sealed. The ejector tap is tightly inserted so that its tip ruptures the fragile membrane and allows the fluid in the container to be removed through the internal passageway of the ejector tap.

(Function) In the present invention, with the above-described configuration, when a fluid is filled into the container through the filling/unloading tube and then a lid body having a fragile membrane is fitted into the filling/unloading tube, the inside and outside of the container are shut off. To take out the fluid in the container, a take-out tap is inserted into the socket hole of the lid, the fragile membrane is broken, and the fluid flows out through the inside of the take-out tap.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

Bag 11 for the bag-in box shown in FIG.
may be made of any material, for example having an inner lining such as polyethylene, or an outer layer of metal-lined polypropylene or polyester. The purpose of the lining is to provide an inner surface of the bag that prevents adverse effects on or reactions with the contents of the bag. The lining is also provided to prevent the passage of air and oxygen through the walls of the bag relative to the contents (liquid). The bag has two opposed walls that are sealed along the periphery 12.

There is an opening in the wall near the bottom end of the bag 11, and the filling/unloading cylinder 14 is fixed to the back side of the bag wall at the opening as shown in FIG. Liquids can be filled and removed from the bag through the body. The filling and dispensing cylinder 14 has a generally cylindrical section with a peripheral flange 15 at its inner end having a shoulder 16.
Also, two peripheral flanges 17, 1 separated from each other
8 of considerable width in the radial direction, and a rib 19 of relatively small width in the radial direction is provided at the open or outer end of the cylindrical part. The cylindrical passage 20 extends substantially over the entire length of the filling/unloading cylinder 14 and has a recess 21 formed at its inner end. A bead 22 is formed inside the outer end of the passageway 20 .

The flanges 17 and 18 are spaced apart so that the periphery of a hole provided in the side wall of the bag-in box (not shown) is sandwiched between the flanges, and the filling/unloading cylinder 14 is opened in a known manner. It is installed so that it will not be displaced relative to the box.

The lid body 23 shown in FIGS. 3 to 6 has an end plate 2
4 and is provided with a substantially cylindrical skirt portion 25. A short neck 26 is integrally provided following the end plate 24, and an angular wall portion 29 is formed following the end thereof. Further, a partially circular circular flange 2 facing the flange 27 is provided.
8 is formed. The end plate 24 of the lid body 23 has
A socket hole 30 is formed, and this socket hole 30
is formed inside the neck 26 and a cylindrical portion extending inwardly (to the left in FIG. 5). Two spaced inner circumferential ribs 31 and 32 are integrally formed on the inner surface of the skirt portion 25, and a fragile membrane 3 is formed at the inner end of the socket hole 30 across it.
4 is installed. An inward bead 35 is provided protruding from the outer end of the socket hole 30.

In order to prevent liquid from leaking through the passage 20, the lid 23 has an annular rib 33 on the back surface of its end plate 24, which contacts the inside of the inner bead 22 at the open end of the filling/unloading cylinder 14. . Further, an inner circumferential rib 32 that is in close contact with the back of the outer rib 19 at the open end of the filling/unloading cylinder 14 is formed on the inner surface of the skirt portion 25, and a similar inner circumferential rib 31 is formed on the inner end of the skirt 25. ing. The lid body 23 and the filling/unloading cylinder body 14 are integrally molded as a whole from a material such as polyethylene.

In use, the bag 11 is filled with liquid through the fill/unload tube 14 and the lid 23 is snapped into engagement with the open end of the fill/unload tube 14 as shown in FIG. At this time, the skirt 25 is
The tip of the skirt 25 contacts the peripheral flange 18. Also, rib 3 on the inside of the skirt
1 and 32 are in close contact with the outer surface of the cylindrical body 14. rib 3
2 crosses over the outer rib 19 of the cylindrical body 14 and comes into close contact with the back surface thereof, and furthermore, the annular rib 33 crosses the inner bead 2
Thus, the lid 23 is attached to the filling/unloading cylinder 14 in a liquid-tight manner so as not to escape. Further, due to the presence of the fragile membrane 34, the passage 20 is completely sealed from the outside, and no liquid leakage occurs. The fragile membrane 34 is connected to the socket hole 30
A localized membrane installed across the edge of the

The lid 23 is attached to the filling/unloading cylinder 14 as follows. That is, when the bag 11 is placed inside the outer box and the outer box is placed in the correct upright position for taking out its contents, the outer corner wall 29 of the lid body will be removed as shown in FIG. In order to receive the engaging portion on the outside of the body of the tap T, it should assume an upright position as shown in FIGS. 3 and 4. The construction of the ejection tap T is well known and is described in Australian Patent No. 407656.

FIG. 8 shows a state in which the fragile membrane 34 of the lid body 23 has been torn by the tip of the take-out tap T that has penetrated it.
When the take-out tap T is inserted into the socket hole 30 in the state shown in FIG.
The insertion position of the tap T is determined by crossing over and engaging behind it.

Note that it is also possible to insert a lid 23 other than the illustrated extraction tap into the socket hole, and it is also possible to use a filling and extraction cylinder of a different design from that shown. In one such example, the peripheral flange 18
The filling and dispensing tubes can also be omitted, and the filling and dispensing tubes can also be removed so that the inner end of the lid plate 23 plays the same role as the flange 18, which engages the material of the outer box to hold the filling and dispensing cylinder in place of the outer box. It is also possible to shorten the overall length of the take-out cylinder. In this case, when the lid 23 is mounted on the barrel 14, the inner end of the skirt 25 has the same function as the flange 18 of the illustrated structure.

In the above structure, it is also possible to additionally install a barrier to prevent oxygen from flowing into the contents (liquid) of the bag 11. After filling the bag 11 with wine or other liquid, a coating of material such as polyethylene-coated metal-clad polypropylene or polyethylene-coated metal-clad polyester may be welded across the opening at the inner end of the passageway 20. I can do it. Such material may be contained in the peripheral recess 21, or alternatively, a coating of such material may be secured across the outlet end of the socket hole 30 to restrict the flow of oxygen. This can also restrict the flow of oxygen through the plastic material of the lid.

(Effects of the Invention) As described above, in the method of the present invention, the cylindrical body for filling and discharging fluid in a container is removably fitted with a lid body, and a fragile membrane is preliminarily inserted into the socket hole provided in the lid body. By providing a container, the lid of the filling/unloading cylinder can be removed before filling with the contents, and then the lid can be attached to completely shut off the inside and outside of the container, making it possible to preserve the contents. When taking out the contents from the container, the contents can be easily taken out by simply inserting the removal tap into the socket hole of the lid. Furthermore, in the present invention, regardless of the material of the container, a locally fragile membrane is specially provided that crosses the socket hole of the lid, and the membrane can be taken out and pierced with a tap.
It is possible to ensure complete sealing of the socket hole before the first removal of the contents, and the brittle membrane is made of a material with excellent pierceability, making it easy to pierce the container when removing the contents. It is possible to ensure its own content resistance, transport suitability, etc.

[Brief explanation of drawings]

FIG. 1 is a plan view of an inner bag equipped with a filling/unloading cylinder on one side in a fluid container used in the method of the present invention, FIG. 2 is a longitudinal cross-sectional view taken along line 2-2 in FIG. 1, and FIG. FIG. 4 is a side view of the lid shown in FIG. 3, FIG. 5 is a sectional view taken along line 5-5 in FIG. 3, and FIG. The rear view of the lid body, Figure 7 is the same as that shown in Figures 3 and 6 attached to the filling/unloading cylinder shown in Figures 1 and 2.
FIG. 8, which is a longitudinal cross-sectional view of the lid shown in the figure, shows the same part as FIG. 7, but specifically shows the state in which the ejecting tab is inserted into the passage of the lid plate. 11...Bag, 14...Filling/unloading cylinder, 1
7, 18, 27, 28...flange, 20...passage, 23...lid body, 25...skirt, 30...
Socket hole, 33... Annular rib, 34... Fragile membrane, T... Removal tap.

Claims (1)

[Claims] 1. After filling a container with fluid through a filling/unloading cylinder provided in the container, a lid body having a through-socket hole inside and closing the inner end with a dedicated locally fragile membrane is attached to the filling/unloading cylinder. By fitting tightly into the open end, the inside and outside of the container are shut off and sealed, and when taking out the fluid inside the container, the extraction tap is tightly inserted into the socket hole from the outside, and the tip of the tap is used to remove the fragile membrane. A method of filling and discharging a container with fluid, comprising breaking and removing the fluid within the container through a passageway inside the dispensing tap.