JP4736542B2 - Pull ring type spout tool - Google Patents

Description

  The present invention relates to a pull ring type spout tool attached to the top of a liquid paper container, a mouth neck of a bottle, and the like, and particularly relates to a pull ring type spout tool having a pull ring that is excellent in fingertip application.

  Conventionally, containers for storing food and non-food liquids have both a perfect seal during distribution and easy opening during use. A plastic pull ring type spout tool has been used in a wide range of applications where a cut portion is provided around the thin brittle wire ring at the position, and a support column having a pull ring at the upper end is erected on the inner periphery of the cut portion. It was.

  This pull ring type spout tool is a prismatic liquid sheet container such as a fruit juice drink, for example, an inclined plate (311) at the top of a container body (310) of a gable roof type liquid sheet container (300) shown in FIG. The cap (200) is crowned by being heat-sealed to the top, or the cap (200) is crowned by being screwed or occluded to the mouth and neck of a bottle of seasoning etc. It is.

  When the container is opened, for example, as shown in FIG. 4, the cap is removed from the spout tool (100), and the pull ring (160) accommodated inside the spout cylinder (110) of the spout tool. The container was opened by tearing the thin brittle wire ring (131) surrounding the cut-out portion (140) of the sealing plate (130) by putting the fingertip on the top and pulling it upward.

  However, since the inner diameter of the pull ring is small, it is difficult to put the fingertip on the pull ring and it is difficult to open it. Several improvements have been made to solve this problem. For example, the inner side of the ring is embossed, the anti-slip ridge is formed in the circumferential direction on the inner surface facing the column of the pull ring, or the pull ring is provided obliquely to make the pull ring as large as possible. (For example, refer to Patent Document 1, Patent Document 2, and Patent Document 3).

The said prior art document is shown.
JP 2000-103455 A. Japanese Utility Model Publication No. 6-44811. JP2003-72811A.

  However, these inventions are not greatly improved because the effects are not extremely improved and it is difficult to release from the mold.

  The present invention has been made in view of the above-described problems relating to the pull ring type spout tool, and provides a pull ring type spout tool that can reliably hang the pull ring on the fingertip and has good mold releasability. The task is to do.

According to the first aspect of the present invention, the sealing plate provided on the inner lower side of the dispensing tube portion is provided with a cut-out portion around which the thin weak wire ring is provided, and the pull ring portion is provided at the inner peripheral edge of the cut-out portion. A pull-ring type spout device made of plastic with a support column standing upright at the upper end, wherein the pull ring part starts from the support column in the left and right directions on the thin fragile wire ring at a regular interval at a regular interval. A first semicircular ring formed, a second semicircular ring having the same shape as the first semicircular ring formed on the first semicircular ring at a certain interval, a first semicircular ring and a first semicircular ring The two semicircular rings are formed from two second struts that linearly connect the tips of the two semicircular rings, and further, a strut connecting column that connects the first semicircular ring and the second semicircular ring is formed. It is a pull ring type spout tool.

As described above, according to the first aspect of the present invention, the sealing plate provided on the inner lower side of the dispensing cylinder portion is provided with the cut-out portion around which the thin weak wire ring is provided, and on the inner peripheral edge of the cut-out portion. A plastic pull ring type spout device provided with a column having a pull ring part at the upper end, the pull ring part being substantially spaced at regular intervals on both sides of the thin fragile wire ring starting from the column. A first semicircular ring formed to be semicircular, a second semicircular ring having the same shape as the first semicircular ring formed on the first semicircular ring at regular intervals, and a first semicircular ring Is formed from two second struts that linearly connect the tips of the second semicircular ring, so that when the fingertip is hung on the second semicircular pull ring, the fingertip is not obstructed and the second semicircular ring It is easy to pull out and the second wall The spout inside diameter by pressing the semicircular ring can tear the sealed plate was fully utilized.
In addition, since the column connecting column connecting the first semicircular ring and the second semicircular ring is formed above the column in the pull ring portion, when forming the pull ring type spout tool by the injection molding method, The mold releasability of the molded product from is further improved.

  According to a second aspect of the present invention, in the first aspect of the present invention, the pull ring portion is formed with a connecting column that vertically connects the lower end of the second column and the upper surface of the cutout portion of the sealing plate. This is a pull ring type spout tool.

  As described above, according to the invention described in claim 2, since the connecting column that vertically connects the lower end of the second support column and the upper surface of the cutout portion of the sealing plate is formed in the pull ring portion, the pull ring mold injection is performed by the injection molding method. When molding the outlet tool, the releasability of the molded product from the mold is further improved.

The invention of claim 3 is the pull ring type spout tool according to the invention of claim 1 or 2, wherein the support pillar is formed above the support .

  In this way, according to the invention described in claim 3, since the column connecting column connecting the first semicircular ring and the second semicircular ring is formed in the pull ring portion above the column, the pull ring is formed by an injection molding method. When molding the mold spout tool, the releasability of the molded product from the mold is further improved.

  The invention of claim 4 is the pull ring type spout tool according to claim 1, 2 or 3, wherein the pull ring part is formed at a position lower than the pouring cylinder part. .

  In this way, according to the invention described in claim 4, since the pull ring part is formed at a position lower than the extraction cylinder part, the cap can be comfortably attached to the extraction cylinder part.

  As described above, in the pull ring type spout device of the present invention, the pull ring portion is formed by dividing the two semicircular rings of the first semicircular ring and the second semicircular ring. When hung, the fingertip is not obstructed and the second semicircular ring can be easily pulled out and opened easily. In addition, mold release defects during injection molding were reduced.

  The pull-ring type spout tool of the present invention is attached by making the dispensing cylinder project from the top of the liquid paper container and heat-sealing the upper surface of the lower flange to the inner surface of the container by a sealing method such as ultrasonic sealing. In addition, it is attached to the mouth and neck of the bottle by being screwed or occluded, and is used by wearing a cap.

  And this pull-ring type pouring tool is normally produced by the injection molding method using thermoplastic synthetic resins, such as polyethylene which is easy to tear a thin weak wire ring at the time of container opening.

Next, the present invention will be described in detail below based on an embodiment.
As shown in FIGS. 1 and 2, for example, the pull-ring type spout device of the present invention has a thin-walled weak wire ring (13) on a sealing plate (12) provided on the inner lower side of the extraction tube portion (11). A plastic pull ring-type spout tool (provided with a column (15) provided with a pull ring portion (20) at the upper end on the inner peripheral edge of the cut portion (14) is provided. 10).

  The pull ring portion (20) includes a first semicircular ring (21) formed on the thin fragile wire ring (13) at a predetermined interval in the left and right directions starting from the support column (15) at a predetermined interval, and the first semicircular ring (21). A second semicircular ring (22) having the same shape as the first semicircular ring formed at regular intervals on the one semicircular ring, and tips (23, 24) of the first semicircular ring and the second semicircular ring ) Are formed from two second struts (25, 26) that linearly connect each other.

You may provide the connection pillar (27) which connects perpendicularly the lower end of the 2nd support | pillar (25, 26) and the cut-out part upper surface of the sealing board (12) of a pull ring part (20).
Moreover, you may provide the support | pillar connection pillar (28) which connects a 1st semicircle ring (21) and a 2nd semicircle ring (22) above a support | pillar (15).

  By providing the connecting column (27) and the column connecting column (28), it becomes difficult to cause mold release defects.

  The pull ring type spout tool of the present embodiment described above was produced by injection molding using polyethylene, but the releasability of the pull ring part from the mold was good, and the thin fragile wire ring was damaged. There was no. In addition, the liquid paper container to which the pull ring type spout tool of this embodiment is attached can reliably hang the fingertip on the first semicircular ring when opening, and the container is easy to open.

It is a section explanatory view showing one example of a pull ring type pouring tool of the present invention. It is a perspective explanatory drawing which shows the detail of the pull ring part provided on the sealing board of the pull ring type pouring tool of FIG. It is perspective explanatory drawing which showed an example of the general liquid paper container which attached the spout tool. It is sectional explanatory drawing which shows one Example of the conventional pull ring type pouring tool.

Explanation of symbols

10. Pull-ring type spout 11 11. Pipe barrel 12 ... Sealing plate 13 Thin fragile wire ring 14 ... Cut-off part 15 ... Strut 20 ... Pull ring part 21 ... First semi-circular ring 22 ····················································································································································································································· 100 ············································································································································ Inclined plate

Claims (4)

The sealing plate provided on the inner lower side of the extraction tube portion is provided with a cut-out portion around which a thin fragile wire ring is provided,
A plastic pull ring type spout device in which a support column having a pull ring portion at the upper end is erected on the inner periphery of the cut portion,
The pull ring portion has a first semicircular ring formed by substantially semi-circulating a thin brittle line ring at regular intervals in both left and right directions starting from a support column, and a constant interval on the first semicircular ring. a second semicircular ring first semicircular ring having the same shape are Oite formed, and the tips of the first semi-circular ring and the second semicircular ring formed from two of the second pillar linearly connecting Further , a pull ring type spout tool characterized in that a column connecting column connecting the first semicircular ring and the second semicircular ring is formed .   The pull ring type spout tool according to claim 1, wherein a connecting column that vertically connects the lower end of the second support column and the upper surface of the cutout portion of the blocking plate is formed in the pull ring portion. The pull ring type spout tool according to claim 1 or 2, wherein the column connecting column is formed above the column .   The pull ring-type spout tool according to claim 1, 2, or 3, wherein the pull ring part is formed at a position lower than the extraction cylinder part.

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