JP2008001416A - Spout - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spout in which its seal is opened by a pull-ring and presence or absence of the pull-ring can be checked at a glance even if a cap is not opened. <P>SOLUTION: A cylindrical part 11 of a spout main body 10 has a male thread at its outer peripheral part. A sealing film 14 closing an inside part of the cylindrical part 11 is cooperatively arranged inside and below the cylindrical part 11 through an annular thin-wall part 13. A pull-ring 16 is cooperatively arranged at the upper part of the sealing film 14. A cap 20 has a female thread engaged with the male thread of the outer periphery of the cylindrical part of the spout main body 11 at its inner peripheral surface. At least the cap 20 is transparent. It is possible to check at a glance presence or absence of the pull-ring while a lid is applied by the cap. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a spout used by being attached to a paper container or other container for storing a liquid.

Conventionally, for example, as a spout attached to a paper bell type paper container, a spout main body composed of a cylindrical portion provided with a flange to be attached to a hole provided in the container, and a cylindrical shape of the spout main body The spout body is provided with a pull ring, and the pulling ring is pulled to form a sealing film provided in the spout body via a thin portion. What was cut | disconnected from the part and formed so that a spout may be formed is generally used widely.
Japanese Utility Model Publication No. 04-106223

  Both the spout main body and the cap constituting the spout of the type described above are made of a resin molded product such as polyethylene. The spout main body is translucent without being particularly colored, but the cap is colored in a conspicuous red or blue color, for example. In other words, the conventional spout has a cap that is conspicuously colored, and is convenient in the sense of appealing to the consumer of its presence when attached to the container.

  However, even if the pull ring is pulled and opened for some reason, there is a problem that the opened state cannot be seen unless the cap is removed. Therefore, if the consumer opened it after purchase, it was one of the causes for the complaint that the pull ring had already been opened.

  The present invention has been made in view of the above-described problems, and the object of the present invention is a spout of a type that is opened by a pull ring, and whether or not a pull ring is present at a glance without opening a cap. It is to provide a spout that can be confirmed.

  In order to achieve the above-mentioned object, the spout of the present invention comprises a spout main body made of a resin molded product and a cap that is also made of a resin molded product and covers a cylindrical portion of the spout main body. The cylindrical portion of the spout main body is provided with a male screw on the outer periphery thereof, and a sealing film for closing the inside of the cylindrical portion is connected to the inner lower side of the cylindrical portion via an annular thin portion. A pull ring is connected to the upper part of the sealing film, and the cap has an internal thread that engages with an external thread on the outer periphery of the cylindrical portion of the spout body, and at least the cap is transparent. It is characterized by having sex.

  And the spout which consists of said structure can also take the form by which the pull ring in a spout main body is formed with colored opaque resin.

  Since the spout of the present invention has a transparent cap, the presence or absence of a pull ring can be confirmed at a glance while the cap is covered with the cap. Therefore, since the consumer can purchase while recognizing the opened state and the unopened state of the pull ring at the store, the occurrence of a complaint that the pull ring has already been opened can be reduced when the cap is opened after the purchase.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  1 to 4 show an example of a spout according to the present invention. FIG. 1 is a perspective view showing the spout attached to a paper container, FIG. 2 is a sectional view of the spout, and FIG. 3 shows a spout constituting the spout. Sectional drawing which shows an exit main body, FIG. 4 is sectional drawing of the cap which comprises a spout.

  As shown in these drawings, the spout is composed of a spout main body 10 made of a resin molded product and a cap 20 that is also made of a resin molded product and covers the cylindrical portion 11 of the spout main body 10. As shown in FIG. 1, the spout is of a type that is attached to a paper-belt type paper container C.

  The spout main body 10 includes a flange 12 for attaching to a hole provided in the paper container around the lower portion of the cylindrical portion 11. And the cylindrical part 11 of the spout main body 10 is provided with a male screw 11a on the outer periphery thereof, and is sealed to close the inside of the cylindrical part 11 via an annular thin part 13 below the inside of the cylindrical part 11. A film 14 is continuously provided, and a pull ring 16 is continuously provided above the sealing film 14 via a support column 15. The pull ring 16 is slightly lower than the height of the cylindrical portion 11. Further, a plurality of projections 17 are provided below the portion of the male thread 11a of the cylindrical portion 11 at intervals above the flange 12 corresponding to the thickness of the wall of the paper container.

  The cap 20 has an internal thread 20 a on the inner peripheral surface thereof that is screwed into the external thread 11 a on the outer periphery of the tubular portion of the spout body 10. The cap 20 is provided with a cylindrical wall portion 21 that hangs down from the top surface. The cylindrical wall portion 21 supports the cylindrical portion 11 of the spout main body 10 from the inside, and The engagement between the outer peripheral surface and the inner peripheral surface of the cap 20 is ensured, and the sealing performance after the pull ring 16 is pulled and opened is ensured. A knurled 22 is engraved on the outer peripheral surface of the cap 20.

  A spout formed by covering the spout main body 10 with the cap 20 as described above is fitted over the mounting hole formed in the paper container from the inside of the paper container, and the flange 12 is brought into close contact with the wall of the paper container. In this state, the spout is attached to the paper container C by welding the flange 12 to the wall of the paper container. Thereafter, the paper container C is filled with the content liquid by a filling machine and displayed as a product at the store.

  In this type of conventional spout, the spout body is formed of a thermoplastic resin such as polyethylene that is not colored, and the cap is formed of a thermoplastic resin such as polyethylene that is colored in a conspicuous color such as red or blue. On the other hand, the spout of the present invention makes at least the cap 20 transparent. Here, the cap 20 is made transparent by forming the spout main body 10 and the cap 20 with a thermoplastic resin such as ordinary polyethylene that is not colored. Therefore, even when the cap 20 is closed as shown in FIG. 1, the inside pull ring 16 can be seen from the outside of the top surface of the cap 20, so the presence or absence can be confirmed at a glance. If the pull ring 16 has already been opened for some reason, it can be known without opening the cap 20.

  The cap 20 does not have to be completely transparent as long as the pull ring 16 in the cap 20 can be seen through. However, it goes without saying that it is easier to check the pull ring 16 if it is almost completely transparent.

  In the above example, the spout main body 10 and the cap 20 are both formed of a normal thermoplastic resin such as polyethylene that is not colored, but only the cap 20 may be formed of a colored transparent thermoplastic resin. For example, when the cap 20 is made of a transparent resin colored in blue, not only the pull ring 16 can be seen from the outside of the cap 20 but also a cool feeling, it is suitable for a sake pack such as cold sake.

  Alternatively, the spout main body 10 may be formed of a colored opaque resin, or only the portion of the pull ring 16 may be formed of a colored opaque resin by two-color molding. In such a form, the cap 20 has transparency, so that the colored pull ring 16 can be clearly seen.

  In the above-described embodiment, the spout main body includes a flange for attaching to a hole provided in the paper container around the lower portion thereof, but instead of such a configuration, a lower portion of the spout main body is provided, for example, You may make it the structure which can be screwed to the opening | mouth part of a PET bottle.

  The embodiment of the present invention has been described in detail above. However, the spout according to the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. It is natural to be.

It is a perspective view which shows the spout which concerns on this invention in the state attached to the paper container. It is sectional drawing which shows an example of the spout which concerns on this invention. It is sectional drawing which shows the spout main body which comprises a spout. It is sectional drawing of the cap which comprises a spout.

Explanation of symbols

C Paper container 10 Outlet body 11 Cylindrical part 11a Male thread 12 Flange 13 Thin part 14 Sealing film 15 Post 16 Pull ring 17 Protrusion 20 Cap 20a Female thread 21 Cylindrical wall part 22 Knurl

Claims (2)

  It is a spout composed of a spout main body made of a resin molded product and a cap that is also made of a resin molded product and covers the cylindrical portion of the spout main body, and the cylindrical portion of the spout main body is on the outer periphery thereof. A male thread is provided, and a sealing film that closes the inside of the cylindrical part is connected via an annular thin part below the inner part of the cylindrical part, and a pull ring is connected to the upper part of the sealing film. The spout has a female screw threadedly engaged with a male screw on the outer periphery of the cylindrical portion of the spout main body, and at least the cap has transparency. 2. The spout according to claim 1, wherein the pull ring in the spout main body is formed of a colored resin.

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