JP2016060497A - Water server - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water server including a water packaging container which is free from fracture of a bag and water leakage, and which can be manufactured easily and simply.SOLUTION: A water server includes a water packaging bag and a needle for water intake used by inserting in the water packaging bag. The water packaging bag includes a packaging bag main body for storing water, and a cap part which is attached to the packaging bag main body and facilitates insertion of the needle. The cap part includes a cylindrical attachment part attached to the packaging bag main body, and a needle insertion part arranged so as to close an opening of the attachment part. The needle insertion part is formed of a single raw material, and has a doughnut-shaped thick part and a circular thin part positioned in a center of the thick part. A difference of thicknesses of the thick part and the thin part is 0.3-1.5 mm.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a water server that can be manufactured easily and easily without worrying about bag breakage or water leakage.

The water server is a drinking water supply device that supplies cold water and hot water, and can be used easily and conveniently, so it is widely used in homes and workplaces.
Articles such as a water server and a container used in the water server have been developed so that the water server is easier to use and has higher safety.
For example, Patent Document 1 discloses a water packaging container that can be easily opened at a spout attached to a paper container or a synthetic resin container, and that can keep the container sealed before opening. A spout opening is formed by forming a top wall on the inside of the wall, forming a portion to be opened on the top wall, picking the outside of the cylindrical wall of the extraction cylinder with a finger and pressing to break the thin wall portion. Proposed water packaging containers have been proposed.
Further, for example, in Patent Document 2, as a water packaging container having a reusable stopper that can be applied to a pouring cylinder having shape retention and that is easy to attach and detach, Has a pouring tube that protrudes from the portion and forms a passage that leads to the internal space formed inside the barrel, and the plug that seals the tip opening of the pouring tube is separable via a planned break line The plug body includes a reuse plug that has a peripheral wall surrounding the outer periphery of the tip of the dispensing cylinder and covers the opening of the tip of the extraction cylinder. A water packaging container has been proposed in which a piece is provided and a second protruding piece for detachably locking the first protruding piece is provided on the container body.
Further, for example, Patent Document 3 discloses a water packaging container having a cap formed by using a cap that closes a large-diameter spout and that can be opened by mounting a small-diameter extraction tool without using a separate member. An outer cylinder that allows the lower outer peripheral surface to be in watertight contact with the surface and can be inserted into the spout, an attachment that is positioned on the outer periphery of the outer cylinder and covers the upper edge of the spout and fixes the outer cylinder to the spout, and an outer cylinder A center part of the top surface part located on the upper end side of the part is recessed downward in a cylindrical shape, and an inner cylinder part into which the content extraction connecting pipe with the insertion end as a cutting edge can be inserted is provided. There has been proposed a water packaging container comprising a cap closed with a continuous disc-shaped closing plate, with the top surface portion and the inner cylinder portion integrated, and the lower portion of the inner cylinder portion being ruptureable at the insertion end of the content extraction connecting pipe. ing.
Further, for example, Patent Document 4 discloses a water packaging including a cap having a circular hole on the upper surface of a cap opening of a plastic bottle so that a water bottle can be directly inserted into a water server to supply drinking water and tea. As a container, a water packaging container having a cap that can be attached to a PET bottle, in which a flexible packing having a cross-cut surface is fitted inside, has been proposed.
Further, for example, in Patent Document 5, in a water server having a structure in which a beverage liquid is supplied in a plastic bag and a hole is formed in the plastic bag using a needle, the ring is attached to the plastic bag and the needle is inserted therein. As a water packaging container comprising: a cylindrical side surface in contact with the outer peripheral surface of the needle of the water server; and a first flange portion having an attachment surface to the plastic bag, the outer peripheral surface of the cylindrical side surface includes the There has been proposed a water packaging container including a ring provided with a second collar part in parallel with the first collar part.
Further, for example, in Patent Document 6, as a water packaging container for a water server, an upper lid portion that closes an upper end opening of a cylindrical mouth portion of a liquid container, and the cylindrical mouth portion that is suspended from the outer edge of the upper lid portion An outer cylinder covering the outer peripheral surface of the outer cylinder, a convex portion provided on the inner peripheral surface of the outer cylinder lower portion, and a notch provided on the convex portion of the inner peripheral surface of the outer cylinder, Proposed is a water packaging container having a liquid container lid in which a convex portion provided in a liquid is fitted in a portion formed by the upper lid portion, the outer cylinder, and the convex portion on the inner peripheral surface of the outer cylinder. Has been.

JP 2008-133209 A JP 2010-105701 A JP 2010-120658 A JP 2004-142826 A Utility model registration No. 3166386 JP 2010-089842 A

However, all of the water packaging containers according to Patent Documents 1 to 6 are still insufficient, and water leaks when the needle is inserted into the bag, and the bag breaks due to the stress of inserting the needle when the needle is inserted. However, there are problems such as complexity and high manufacturing costs.
For this reason, there is a demand for the development of a water server having a water packaging container that can be easily and easily manufactured without causing the bag to break or leak.

  Accordingly, an object of the present invention is to provide a water server having a water packaging container that can be easily and simply manufactured without worrying about bag breakage or water leakage.

As a result of intensive studies to solve the above-mentioned problems, the inventors have inserted a needle while maintaining the strength of the cap part by providing a thick part and a thin part having a specific structure in the cap part of the water packaging bag. As a result, the present invention has been completed.
That is, the present invention provides the following inventions.
1. In a water server comprising a water packaging bag and a water intake needle used by being inserted into the water packaging bag,
The water packaging bag includes a packaging bag main body for storing water, and a cap portion that is attached to the packaging bag main body and facilitates insertion of the needle,
The cap portion includes a cylindrical mounting portion that is mounted on the packaging bag body, and a needle insertion portion that is provided so as to close an opening of the mounting portion,
The needle insertion part is made of a single material, and comprises a doughnut-shaped thick part and a circular thin part located at the center of the thick part,
A difference in thickness between the thick part and the thin part is 0.3 to 1.5 mm.
2. 2. The water server according to claim 1, wherein the cap portion is formed so as to be fitted to a cylindrical water intake portion provided in the packaging bag body.
3. The thickness of the said thin part is 0.3-0.7 mm. The water server of 1 or 2 characterized by the above-mentioned.
4). The water server according to any one of 1 to 3, wherein the cap portion is formed using a flexible material.
5. The needle includes a conical tip for allowing insertion into the thin portion, and a columnar extension tube extending from the bottom of the tip,
The diameter of the bottom part of the said front-end | tip part is larger than the diameter of the said extension pipe | tube, and smaller than the diameter of the said thin part. The water server of 1-4 characterized by the above-mentioned.

  The water server of the present invention has a water packaging container that is easy and simple to manufacture without worrying about bag breakage or water leakage.

FIG. 1 is a perspective view showing a water packaging bag and a needle portion used in the water server of the present invention. FIG. 2 is an exploded perspective view of a part of FIG. 3 is a cross-sectional view taken along the line III-III in FIG. FIG. 4 is an enlarged perspective view of the needle shown in FIG. FIG. 5 is a partial cross-sectional view schematically showing a state where the needle is inserted into the cap portion. FIG. 6 is a schematic diagram schematically showing the structure of the water server of the present invention.

1: Water server, 10: Water packaging bag, 11: Packaging bag body, 20: Needle, 30: Cap part, 31: Mounting part, 33: Needle insertion part, 34: Thick part, 35: Thin part

Hereinafter, an embodiment of a water server of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, the water server 1 of the present embodiment includes a water packaging bag 10 and a water intake needle 20 that is used by being inserted into the water packaging bag 10.
As shown in FIG. 1, the water packaging bag 10 includes a packaging bag main body 11 for storing water, and a cap portion 30 that is attached to the packaging bag main body 11 and facilitates insertion of the needle 20. As shown in FIGS. 2 and 3, the cylinder includes a cylindrical attachment portion 31 attached to the packaging bag body 11 and a needle insertion portion 33 provided so as to close the opening of the attachment portion 31. The insertion portion 33 is made of a single material and includes a doughnut-shaped thick portion 34 and a circular thin portion 35 positioned at the center of the thick portion 34.
Details will be described below.

<Water packaging bag>
The water packaging bag 10 includes a packaging bag body 11 formed in a substantially cubic shape, and a cap portion 30 disposed at the center of one surface of the packaging bag body 11.

(Packaging bag body)
As shown in FIGS. 1 and 2, the packaging bag body 11 is formed by laminating laminated sheets 11 a and 11 b each composed of two sheets on the upper and lower sides, and a cap portion 30 is attached to a substantially central portion on one surface thereof. For this purpose, a cylindrical water intake 12 is provided. The water intake port 12 has a main body 12a, a fitting port 12b for mounting the cap unit 30, a circular (doughnut-shaped) upper rib 12c that contacts the lowermost surface of the cap unit 30 and prevents water leakage, and strength. It consists of a circular (doughnut-shaped) lower rib 12d provided for holding. The fitting opening 12b is formed by extending the opening edge of the main body 12a outwardly from the outer peripheral edge of the main body 12a into a circular rib shape.
Further, the lower end edge of the main body 12a extends in a donut shape to form a fixed portion. The water intake port 12 is fixed to the package body 11 by sandwiching the fixing portion between the two sheets and fixing the two sheets and the fixing portion 12e by heat sealing or the like.
As described above, the packaging bag body 11 is formed into a bag shape by bonding four sides of two square sheets by heat sealing or the like, and the water intake port 12 is disposed between the two sheets. It is provided by fixing. Thereby, after installing up to the water intake port portion 12, it is possible to fill the water from the water intake port portion, attach a cap portion described later, and seal the inside.
The size of the packaging bag body 11 is not particularly limited, but in the present embodiment, it is formed to have an internal capacity of 6 liters. Moreover, the magnitude | size of the water intake part 12 is not restrict | limited in particular, However, Usually, the outer diameter of the fitting port part 12b is 2-5 cm, and the height of the main body 12a is 2-4 cm.
As the forming material of the packaging bag body 11 and the water intake port 12, various materials such as polyethylene, polypropylene, polyethylene terephthalate resin, polycarbonate resin can be used, but in this embodiment, the packaging bag body is made of polypropylene, The intake port is a polycarbonate resin.

(Cap part)
As shown in FIGS. 2 and 3, the cap portion 30 includes a cylindrical mounting portion 31 fitted to cover the outer peripheral surface of the water intake port portion 12 and a needle provided so as to close the opening of the mounting portion 31. And an insertion portion 33. The mounting portion 31 is provided with a fitting rib 32 having a mountain-shaped cross section formed over the entire inner peripheral surface thereof. Further, the upper edge of the mounting portion 31 is provided with a rib projecting outward from the circumferential surface so that it can be easily held during removal.
The diameter of the mounting portion 31 needs to be an inner diameter that conforms to the outer shape of the water intake port, and the inner diameter is usually 2 to 5 cm. Further, the height is preferably 0.5 to 2.0 cm in order to improve the waterproof effect during fitting.
The needle insertion portion 33 is recessed from the upper edge side to the lower end side of the mounting portion 31, is provided substantially over the entire height of the mounting portion 31, and has a bowl shape as a whole. Further, a circular thin portion 35 is provided at the center of the needle insertion portion 33, and a donut-like thick portion 34 is provided therearound. That is, the thin part is located at the lowest part of the hook-shaped needle insertion part.
The cap portion 30 is formed by integral molding, that is, by a single forming material. By forming the cap portion 30 by integral molding in this way, it is possible to improve sealing and facilitate needle insertion.
The forming material of the cap portion 30 is particularly preferably a flexible material. Examples of the flexible material include silicon rubber, polyurethane, polyethylene, polyvinyl chloride, polyester, polyether, polyethylene vinyl acetate, polyvinyl acetate foam, and elastomer. , Thermoplastic elastomer, polyvinyl chloride, polyethylene vinyl acetate and the like, and silicon rubber can be particularly preferably used. By using a flexible material, the needle insertion portion 33 is provided with an elastic restoring ability, and the elastic restoring force improves the adhesion between the needle insertion portion and the needle when the needle is inserted, thereby causing water leakage. Can be eliminated.

And in the water server of this embodiment, the thickness difference of the thick part 34 and the thin part 35 is 0.3-1.5 mm, Preferably it is 0.8-1.2 mm.
If the difference in thickness between the thick part 34 and the thin part 35 is less than the above-mentioned lower limit, the thin part breaks more than necessary when the needle is inserted, and water leakage occurs during insertion and use. If the upper limit is exceeded, it may be difficult to insert and an extra force may be applied when the thin portion is broken. Under the influence, the thick portion is broken to cause water leakage. For this reason, it is necessary to be within the above-mentioned range.
The thick portion 34 needs to have a size that can block the opening portion of the water intake portion described above. In particular, in the present embodiment, the cross section is formed in an arc shape so that the thick portion 34 exists over almost the entire height of the mounting portion 31.
The thin portion 35 is provided at the substantially center and bottom portion of the needle insertion portion 33.
The thickness of the thin portion 35 is preferably 0.3 to 0.7 mm, and more preferably 0.4 to 0.6 mm. By setting it within this range, the needle can be easily inserted and excessive breakage can be prevented. The size of the thin portion is determined from the relationship with the size of the needle, but preferably has a diameter of 1 to 1.5 cm.
Although the thickness of the thick part 34 will not be restrict | limited especially if it is the range which can implement | achieve the above-mentioned difference, 1-2 mm is preferable and it is still more preferable that it is 1.2-1.8 mm. Within this range, sufficient strength can be maintained when inserting the nozzle or when using the server.

<Needle>
The needle 20 in the water server 1 of the present invention is inserted into the thin portion 35 of the needle insertion portion 33 to take in water inside the water packaging bag 10.
As shown in FIG. 4, the needle 20 includes a conical tip 21 for allowing insertion into the thin portion 35, a columnar extension tube 22 extending from the tip 21, and an extension tube 22. The intermediate portion 23 has an outer diameter larger than the outer shape of the continuous extension tube 22 and has a knob 27 for facilitating the insertion and removal of the needle 20, and a water intake tube 24 connected to the intermediate portion 23. In each member, a hollow water channel 25 is provided so that water can be sucked from an opening 26 provided in the tip 21 and water can be supplied to a drain port (see FIG. 6) of the water server. ing.
Thus, in the present embodiment, the shape of the tip of the needle is a conical shape.
The diameter of the needle, in this embodiment, the bottom of the conical tip, that is, the diameter of the portion with the largest diameter at the tip, is larger than the diameter of the extension tube and smaller than the diameter of the thin portion. The diameter of the bottom is preferably 1.0 to 2.0 mm smaller than the diameter of the thin portion 35, and the diameter of the bottom is preferably 0.6 to 1.3 mm larger than the diameter of the extension tube. With this configuration, when the needle is inserted into the thin portion 35, the entire needle insertion portion 33 is made of a flexible material, so that the needle can be inserted without breaking the thick portion 34, Once inserted, the step formed at the boundary between the tip and the extension tube is locked to the thick part, so the needle does not come off easily. The internal water can be taken following the movement of the water packaging bag without coming off.
The material for forming the needle 20 is not particularly limited, and for example, a metal material, a resin material, or the like can be used. In the present embodiment, stainless steel is used because of its high strength and corrosion resistance.

<Manufacturing method>
The water packaging bag of this embodiment can be manufactured as follows.
First, prepare two sheets (one for forming a packaging bag, hereinafter the same in this section) where one sheet is simply square and the other sheet is circular in the center. Laminate in which the fixing portion 12e of the water intake portion 12 is positioned between the two sheets on the other sheet side, and the water contact portion 12 is fixed by heat sealing the sheet that contacts the fixing portion 12e. Get a sheet.
Subsequently, another square sheet is obtained by simply laminating two square sheets.
And after laminating | stacking both laminated sheets, four sides are heat-sealed and it is set as a bag shape.
Separately, the cap portion is integrally formed by a known method using a flexible material such as silicon rubber. By fitting the obtained cap part 30 to the water inlet part 12, the water packaging bag 10 to which the cap part 30 is fixed is obtained.
The water server of this embodiment can be obtained by arranging the obtained water packaging bag at a predetermined position.

<How to use>
The water server of this embodiment can be used as follows.
First, as shown in FIG. 5, the tip portion 21 of the needle 20 is pierced into the thin portion 35 in the needle insertion portion 33 of the cap portion 30, and the tip portion 21 is inserted into the water packaging bag 10. Since the step between the distal end portion 21 and the extension tube 22 contacts the thick portion 34, the needle 20 is hardly detached, and the intermediate portion 23 is provided. There is no damage.
Then, in response to the water discharge operation of the water server, the user can drink the water inside the bag by collecting and discharging the water from the opening 26.

As long as the water server 1 of the present embodiment including the water packaging bag 10 and the needle 20 includes the above-described water packaging bag and the needle, the other device configurations are usually the same as the known device configurations. be able to.
For example, as shown in FIG. 6, in addition to the water packaging bag 10 and the water intake needle 20 that is inserted into the water packaging bag 10 and used, a cooling device and a heating device for heating and cooling water to a desired temperature ( (Not shown) and a spout 40 for water and hot water.

The present invention is not limited to the embodiment described above, and various modifications can be made without departing from the spirit of the present invention.
The outer shape of the packaging bag body is not limited to a simple bag shape as in the present embodiment, and can be various shapes such as a rectangular parallelepiped, a cube, and a sphere. The shape of the needle is also an L shape in the above embodiment. However, the present invention is not limited to this, and various forms such as an I-shape can be used.

EXAMPLES Hereinafter, although an Example and a comparative example are shown and this invention is demonstrated more concretely, this invention is not restrict | limited to these at all.
[Examples and Comparative Examples]
Water packaging bags and needles shown in FIGS. 1 to 5 having the dimensions shown in Table 1 below were manufactured.
Example 1 after filling the obtained water packaging bag with water and then inserting a needle into the cap part and examining the leakage of water, the degree of damage to the cap part, or the feeling of use when piercing Then, it can be inserted quickly and has excellent usability and is not damaged, and the thin part functions to prevent water leakage by coming into contact with the step formed between the bottom of the needle tip and the extension tube. It was. On the other hand, in Comparative Example 1, it was difficult to pierce the needle, and when pierced, not only the thin portion but also the thick portion cracked, causing water leakage. Moreover, in Comparative Example 2, although it was excellent in the usability for insertion, the needle was easily removed, resulting in water leakage.
As is clear from these results, the difference in thickness between the thick part and the thin part as in the present invention is within a predetermined range, and it is possible to achieve both ease of embedding, a feeling of use, and prevention of water leakage. It turns out that it is important.

Claims (5)

In a water server comprising a water packaging bag and a water intake needle used by being inserted into the water packaging bag,
The water packaging bag includes a packaging bag main body for storing water, and a cap portion that is attached to the packaging bag main body and facilitates insertion of the needle,
The cap portion includes a cylindrical mounting portion that is mounted on the packaging bag body, and a needle insertion portion that is provided so as to close an opening of the mounting portion,
The needle insertion part is made of a single material, and comprises a doughnut-shaped thick part and a circular thin part located at the center of the thick part,
A difference in thickness between the thick part and the thin part is 0.3 to 1.5 mm. The water server according to claim 1, wherein the cap portion is formed so as to be fitted to a cylindrical water intake portion provided in the packaging bag body. The thickness of the said thin part is 0.3-0.7 mm. The water server of Claim 1 or 2 characterized by the above-mentioned. The water server according to claim 1, wherein the cap portion is formed using a flexible material. The needle includes a conical tip for allowing insertion into the thin portion, and a columnar extension tube extending from the bottom of the tip,
The diameter of the bottom part of the said front-end | tip part is larger than the diameter of the said extension pipe | tube, and smaller than the diameter of the said thin part. The water server of Claims 1-4 characterized by the above-mentioned.

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