JP2005239207A - Spout member having tamper-evident structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spout member having a tamper-evident structure which is correctly mounted on a spout mounting hole of a paper-made container and opened/closed with a simple operation. <P>SOLUTION: The spout member (1) comprises a spout body (10) and a cap (20) to be screwed to a cylindrical part (11) of the spout body. The cap comprises a cap body (21) and an annular tamper-evident band (25) which is continuously provided on a skirt part (22) of the cap body via a bridging part (23), and has a recessed part (24) on a lower edge part. A projecting part (18) is provided at the position corresponding to the recessed part of the tamper-evident band of the cylindrical part so that a space (26) between the lower edge of the tamper-evident band and a lower part of the cylindrical part (11) is formed not in a straight shape. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a pouring tool having a tamper-evident structure that is attached to a pouring outlet mounting hole of a paper container, and in particular, can be accurately attached to the pouring hole mounting hole and can be opened and closed with a simple operation. The present invention relates to a dispensing tool having a possible tamper-evidence structure.

  Conventionally, for example, as a pouring tool attached to a gable-top type paper container, a tubular portion, a partition wall formed inside a lower portion of the tubular portion and closing the tubular portion, and standing from the partition wall It consists of a pull ring for opening, a spout body formed of a flange that is formed on the lower outer edge of the tubular portion and is affixed to the inner surface of the spout attachment hole edge of the paper container, and a cap that covers the tubular portion. A structure pouring tool was common. And after removing a cap, the pulling ring for opening was pulled, the partition provided in the cylindrical part via the thin part was cut | disconnected from the thin part, and the spout was formed.

  This type of pouring tool is configured to seal the spout by engaging the screw provided on the outside of the cylindrical portion with the screw of the cap and screwing the cap. There is a problem that it is not possible to judge from the appearance that the pouch is cut from the thin-walled portion to form a spout and opened.

  Therefore, in recent years, a dispensing tool having a function that clearly shows that it has been opened, that is, a tamper evidence function has been developed (see, for example, Patent Document 1 and Patent Document 2).

The said prior art document is shown.
JP 2003-261157 A However, in these inventions, a gap is provided in the cap skirt for lowering the tamper evident band. If there is this gap, the sleeve is assembled, and when the pouring tool is inserted into the spout mounting hole, it is poorly inserted, that is, the bottom edge of the tamper-evidence band attached to the bottom of the cap of the pouring tool and the cylindrical shape of the spout main body In some cases, the edge of the spout attachment hole enters the gap between the hems of the parts, and the cylindrical portion does not enter the normal position of the spout attachment hole.

  Furthermore, some have a structure in which a part of the cap body is cut (see, for example, Patent Document 3).

The said prior art document is shown.
JP, 2003-267410, A This invention has a structure which cuts a part of cap body as mentioned above. In this case, after the operation of cutting the cap body part, the operation of rotating the upper part of the cap is performed, and there is a problem that it takes time to open the cap for the first time.

The present invention has been made in view of the above problems relating to a plastic screw-out type dispensing tool having a tamper-evident structure, and is accurately attached to a spout attachment hole of a paper container, and is simple. It is an object of the present invention to provide a pouring tool having a tamper evidence structure that can be opened and closed by operation.

  The invention according to claim 1 of the present invention is a pouring tool comprising a spout main body and a cap screwed onto the cylindrical portion of the spout main body, and the cylindrical portion of the spout main body is disposed on the outer periphery thereof. The cap has a structure including a screwed tube portion having a screw, and a flange attached to an inner surface of a spout attachment hole edge portion of the paper container at a lower outer edge of the screwed tube portion of the tubular portion. Is composed of a cap body and an annular tamper-evident band having a concave portion formed by being cut out in a concave shape at the lower edge portion, which is connected to the skirt portion of the cap body via a bridging portion. The position corresponding to the concave portion of the tamper evidence band of the portion has a convex portion formed in a convex shape, and the gap between the lower end edge of the tamper evidence band and the lower portion of the cylindrical portion is not linear. Tamper-evidence structure characterized by A dispensing tool for.

  As described above, according to the first aspect of the present invention, the position corresponding to the concave portion of the tamper evident band of the cylindrical portion has the convex portion formed in a convex shape, and the lower end edge of the tamper evidence band and the cylindrical shape. The tamper-evidence band is designed to prevent the tamper-evidence band from dropping significantly after the cap is closed, and at the same time the spout body is set in the paper container. The edge of the paper container does not enter the gap between the lower edge and the cylindrical portion.

  The invention of claim 2 is characterized in that, in the invention of claim 1, the shape of the gap between the lower end edge of the tamper evidence band and the lower portion of the cylindrical portion is a shape with a substantially U-shape. And an extraction tool having a tamper evidence structure.

  Thus, according to the second aspect of the present invention, since the shape of the gap between the lower end edge of the tamper evident band and the lower portion of the cylindrical portion is a substantially horizontal shape, the cap is closed. Thereafter, the fall of the tamper evident band becomes large, and at the same time, when the spout main body is set in the paper container, the edge of the paper container does not enter the gap between the lower edge of the tamper evidence band and the cylindrical portion.

  According to a third aspect of the present invention, in the first aspect of the invention, the shape of the gap between the lower end edge of the tamper evidence band and the lower portion of the cylindrical portion is substantially a saw blade shape. An extraction tool having a dent structure.

  Thus, according to the third aspect of the present invention, since the shape of the gap between the lower end edge of the tamper evidence band and the lower portion of the cylindrical portion is substantially a saw blade shape, the tamper shrimp after the cap is closed. At the same time as the fall of the dent band increases, the edge of the paper container does not enter the gap between the lower edge of the tamper evidence band and the cylindrical portion when the spout body is set in the paper container.

  According to a fourth aspect of the present invention, in the second or third aspect of the present invention, the shape of the gap between the lower end edge of the tamper evident band and the lower portion of the cylindrical portion is a horizontal portion or a saw blade shape. The pour-out tool having a tamper-evident structure, characterized in that there are a plurality of locations.

  As described above, according to the invention described in claim 4, there are a plurality of places or saw blade-like places where the substantially square shape of the gap between the lower end edge of the tamper evidence band and the lower portion of the cylindrical portion is located horizontally. Therefore, after the cap is closed, the tamper-evidence band drops more, and at the same time, when the spout body is set in the paper-made container, the edge of the paper-made container is placed between the lower edge of the tamper-evidence band and the cylindrical part. There is no invasion.

  According to a fifth aspect of the present invention, in the first, second, third, or fourth aspect of the present invention, a partition that closes the inside of the cylindrical portion via a thin-walled portion formed annularly is provided inside the cylindrical portion. An extraction tool having a tamper-evident structure, characterized in that the partition wall is provided with a pull ring for opening standing from the partition wall.

  Thus, according to the fifth aspect of the present invention, the partition wall that closes the inside of the tubular portion is continuously provided on the inside of the tubular portion via the thin-walled portion formed in an annular shape. Since the opening pull ring standing from the partition wall is provided, the contents are not accommodated up to the upper side of the cylindrical portion, and the partition wall can be easily removed by pulling the pull ring or the like.

Thus, the dispensing tool having the tamper-evident structure according to the present invention, once the cap is rotated and opened, the tamper-evidence band is in close contact with the lower part of the cylindrical part, and the cap hem part and the upper edge of the tamper-evidence band Since the distance between the caps is relatively wide, the visibility of opening the cap once is enhanced. (Because the amount of descent of the tamper evident band is sufficient, the visibility of opening the cap once increases.)
In addition, when the pouring tool is attached to the cap attachment hole while assembling the paper container sleeve, the paper container sleeve is not caught between the cap and the spout main body.

The present invention will be described in detail below based on one embodiment.
The pouring tool having the tamper evidence structure of the present invention includes, for example, a spout main body (10) and a cap screwed onto the tubular portion (11) of the spout main body as shown in FIGS. (20), which is usually produced by injection molding a rigid thermoplastic resin such as polyethylene or polypropylene.

  The cylindrical part (11) of the spout main body is provided with a threaded cylinder part (12) having a screw (13) on its outer periphery. And it consists of a structure provided with the flange (17) stuck on the inner surface of the spout attachment hole (3) edge of a paper container at the lower outer edge of the cylinder part (12) with a screw of a cylindrical part.

  As shown in FIG. 1, a partition wall (15) that closes the inside of the tubular portion may be provided inside the tubular portion via an annular thin portion (14). In that case, the partition wall (15) is provided with an opening pull ring (16) standing from the partition wall.

  The cap (20) is connected to the cap main body (21) and the skirt (22) of the cap main body (21) via the bridging portion (23), and is formed by notching in a concave shape at the lower edge portion. And an annular tamper evident band (25) having a concave portion (24).

  And the convex part (18) formed in convex shape is formed in the position corresponding to the crevice (24) of the tamper evidence band (25) of the spout main part (10), and the tamper evidence band (25) A pour tool having a tamper-evident structure, characterized in that the gap (26) between the lower end edge and the lower part of the cylindrical part (11) is not linear.

  Although not shown, a plurality of ratchet pieces are formed on the inner side surface of the tamper evident band (25), and the tamper evidence band ( 25) Although not shown, a plurality of ratchet claws are formed at a position corresponding to 25).

In addition, the tamper evident band (25) is threaded on the outer surface below the screw of the threaded cylinder (12) and above the ratchet pawl when the cap is opened and the paper container is tilted. An undercut (not shown) is provided so as not to fall out from the tube portion (12).

  The gap (26) between the lower end edge of the tamper evident band (25) and the lower part of the cylindrical portion (11) must not be linear, and a saw blade shape as shown in FIG. 5 is provided. Also good. In addition, it is preferable to provide two or more places where the shape of the substantially square shape is tilted sideways or the shape of a saw blade with an appropriate interval.

  As a result, when the pouring tool (1) is attached to the spout attachment hole (3) of the sleeve (2) for the paper container, the lower end edge of the tamper evident band (25) and the cylindrical portion of the spout main body ( 11) The possibility that the edge of the cap attachment hole (3) of the sleeve for the paper container enters the gap (26) with the end edge of 11) is eliminated (see FIG. 6).

  When the thickness of the sleeve for the paper container is about 0.6 mm, in the pouring tool of the present invention, the gap (26) between the skirt of the cap and the edge of the spout main body is 1 to 1.5 mm. Yes, when the cap is closed, the gap becomes more than the thickness of the sleeve. However, since the gap (26) is not linear, the sleeve (2) is not caught in the gap (26).

Since the pouring tool of the present invention has such a structure, when the cap is rotated and opened, the tamper evident band is brought into close contact with the lower portion of the cylindrical portion, and the skirt portion of the cap body and the tamper evidence are provided. Since the gap at the upper edge of the band is relatively wide, the visibility of opening the cap is enhanced. (Because the amount of descent of the tamper evident band is sufficient, the visibility of opening the cap increases.)
Further, when the pouring tool is attached to the spout attachment hole while assembling the paper container sleeve, the paper container sleeve is not caught between the cap and the spout main body.

It is a partial section explanatory view showing one example of the extraction tool which has a tamper evidence structure of the present invention. It is side surface explanatory drawing which shows one Example of the extraction tool which has a tamper evidence structure of this invention. It is a fragmentary sectional explanatory view showing one example of the cap used for the extraction tool which has the tamper evidence structure of the present invention. FIG. 1 shows the pouring tool having the tamper-evident structure of FIG. 1 attached to a paper container, (a) is an explanatory view before opening, (b) is once opened and then the cap is closed again It is explanatory drawing in a state. Another example of the pouring tool having a tamper-evident structure of the present invention is shown in a state where it is attached to a paper container, (a) is an explanatory view before opening, (b) is once opened, It is explanatory drawing in the state which closed the cap again. It is explanatory drawing which shows the state which attaches the extraction tool which has the tamper evident structure of this invention to the stopper attachment hole of a paper container.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Extraction tool 2 ... Paper container, sleeve 3 ... Outlet mounting hole 10 ... Outlet body 11 ... Cylindrical part 12 ... Cylindrical part with screw 13 ... Screw 14 ... Thin part 15 ... ····························································································································································· 17 ················································································ • …… Gap

Claims (5)

A pouring tool comprising a spout main body and a cap screwed onto the tubular portion of the spout main body,
The cylindrical portion of the spout main body includes a threaded cylindrical portion having a screw on the outer periphery thereof, and is attached to the inner periphery of the spout attachment hole edge of the paper container on the lower outer edge of the threaded cylindrical portion of the cylindrical portion. It has a structure with a flange,
The cap consists of a cap body and an annular tamper-evident band having a recess formed by being cut out in a concave shape at the lower edge, connected to the skirt of the cap body via a bridging portion, The position corresponding to the concave portion of the tamper evident band of the cylindrical portion has a convex portion formed so that the gap between the lower end edge of the tamper evident band and the lower portion of the cylindrical portion is not linear. A pouring tool having a tamper-evident structure, characterized in that:   The extraction tool having a tamper evidence structure according to claim 1, wherein a shape of a gap between a lower end edge of the tamper evidence band and a lower portion of the cylindrical portion is a substantially horizontal shape.   The extraction tool having a tamper evidence structure according to claim 1, wherein a shape of a gap between a lower end edge of the tamper evidence band and a lower portion of the cylindrical portion is substantially a saw blade shape.   The shape part or the shape of the substantially saw-tooth shape where the substantially square shape of the clearance gap between the lower end edge of the said tamper evidence band and the cylindrical part lower part is located, or two or more places exists, It is characterized by the above-mentioned. An extraction tool having the tamper evidence structure described.   A partition wall that closes the inside of the tubular portion is connected to the inside of the tubular portion through a thin-walled portion formed in an annular shape, and the partition is provided with an opening pull ring that stands up from the partition wall. The pouring tool having a tamper evidence structure according to claim 1, 2, 3 or 4.

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