JPH0532428Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a pouring stopper that is attached to a container containing a liquid.

[Prior Art] Paper containers such as the Goebel top type have been used for the purpose of reducing the manufacturing cost and weight of liquid containers. Some of these paper containers are equipped with a pouring stopper made of synthetic resin so that the liquid can be easily poured out, and a pouring spout having an external thread is attached to the pouring hole of the liquid container (paper container). An inner plug that is movable up and down inside the spout,
It consists of a cap that is screwed onto the spout, and when opening, the inner stopper is pushed in and the film covering the spout hole is torn and opened.When storing, the cap is screwed onto the spout. It was designed to fit into the exit fitting (for example, Utility Model 58-37828)
(see publication).

[Problems to be solved by the invention] However, as mentioned above, in conventional spouting stoppers, the inner plug must be forcefully pushed in with a fingertip to break the film, making it difficult to open the spouting hole. There was a problem that there was no.

[Means for Solving the Problems] The present invention has been made in consideration of the above-mentioned conventional problems. a spout having a cylindrical portion corresponding to the hole; a substantially cylindrical opening blade inserted into the cylindrical portion of the spout and having a blade on a lower edge; and a spout attached to cover the cylindrical portion. The inner surface of the cylindrical portion and the outer surface of the opening blade opposite thereto are both provided with rotation prevention means that are movable in the vertical direction while sliding in contact with each other, so that the opening blade is The opening blade is provided so as to be movable up and down, and the opening blade is provided with a protrusion inside the upper end of the cylindrical wall of the opening blade, and the cap is a cylindrical body having a guide slope facing downward and slidingly in contact with the projection of the opening blade. In order to solve the above-mentioned conventional problems, there is provided a spouting stopper for a liquid container, characterized in that the opening blade is provided so as to be able to be lowered when the cap is rotated.

[Function] In this invention, when the cap is rotated,
The protrusion that is in sliding contact with the guide slope of the cylinder body, that is, the opening blade equipped with the protrusion, is pushed downward and descends, then tears the film, opens the spout hole, and allows the cap to be removed and dispensed. .

[Example] Next, the present invention will be described in detail based on an example shown in FIGS. 1 to 6.

1 in the figure is a synthetic resin pouring stopper, and this pouring stopper 1
is attached, for example, to a pouring hole a located on the upper slope of a Goebelt top type container. As shown in FIG. 5, the spout fitting 2 of the spout stopper 1 is attached to the spout hole a (by means such as ultrasonic welding), and the spout A corresponding to the spout hole a is attached to the cylindrical portion. It is surrounded by 20.

A cap 3 is attached to the cylindrical portion 20 so as to cover the cylindrical portion 20, and a protrusion 30 protruding from the lower edge of the inner surface of the cap 3 is connected to a jetty 21 located around the base of the cylindrical portion 20. Toko Jetty 2
The cap 3 is fixed to a jetty 22 that slopes upward continuously from the cap 3 in one direction (arrow c in Fig. 1).
The protrusion 30 that rotates in the direction shown in is the jetty 21
The cap 3 rotates the required amount while sliding in contact with the projection 30, and then the protrusion 30 is guided by the jetty 22 and the cap 3
is arranged so that it rotates while rising.
The protrusions 30 and the inclined jetty 22 are also located at opposing positions, forming a pair.

A substantially cylindrical opening blade 4 with a blade portion 40 at the lower edge is inserted into the spout A in correspondence with the film b that seals the spout a, and the cylindrical wall of the opening blade 4 A protrusion 42 is protruded from a diametrically opposed position on the outer side of the upper edge of the portion 41, and the protrusion 42 engages with each of the vertical protrusions 23 on the inner surface of the cylindrical portion 20 so as to be movable up and down. Since the protrusion 41 is engaged with the protrusion 23, the opening blade 4 can be lowered toward the film b without rotating. That is, a rotation prevention means consisting of the protrusions 23 and protrusions 41 that are in sliding contact with each other is provided between the inner surface of the cylindrical portion and the outer surface of the opening blade facing the same. Further, as shown in FIG. 1, the opening blade 4 is provided with projections 5 on the inner side of the upper end of the cylindrical wall portion 41 at positions facing each other in the diametrical direction.

A cylindrical body 6 to be inserted into the opening blade 4 hangs down from the back surface of the top 31 of the cap 3. As shown in FIG. 3, a downwardly facing guide slope 7 is provided which is inclined from the top 31 side toward the lower edge along the outer peripheral surface direction of the cylinder 6. This guide slope 7 is provided so as to face the protrusion 5 of the opening blade 4 so that it can come into sliding contact with the protrusion 5. When the cap 3 is rotated in the direction of arrow c, the cylindrical body 6 rotates and the protrusion 5
2 engages with the protrusion 23, the opening blade 4 is pushed downward, that is, toward the film b side.

In order to unseal the spout hole a in the spout tap 1 having the above structure, it is sufficient to rotate the cap 3 in one direction, and the opening blade 4 descends due to the rotation of the cylindrical body 6. Then, the film b is torn, and the spout hole a can be opened by the extremely easy operation of turning the cap 3. After that, the spout A that communicates with the spout hole a that has been opened connects the protrusion 30 of the cap 3 to the jetty 2.
The cap 3 can be opened by rotating and removing it along the lines 2 and the contents can be poured out. Then, the opening blade 4 that descended and broke the film b remains in the lower position without moving up or down even if the cap 3 is rotated in the opposite direction, and the broken pieces of the film b are caught between the opening blade and the pouring spout. There is no need to cut it completely and drop it into the container.

[Effects of the invention] As explained above, according to the invention, the spout plug for a liquid container is attached to the spout hole of a liquid container sealed with a breakable film, and has a spout corresponding to the spout hole. Consisting of a spout having a cylindrical part, a substantially cylindrical opening blade inserted into the cylindrical part of the spout and having a blade on the lower edge, and a cap attached to cover the cylindrical part. Both the inner surface of the cylindrical portion and the outer surface of the opening blade facing the cylindrical portion are provided with rotation prevention means that are movable in the vertical direction in sliding contact with each other, so that the opening blade The opening blade is provided so as to be movable up and down, and the opening blade is provided with a protrusion inside the upper end of the cylindrical wall of the opening blade, and the cap is a cylindrical body having a guide slope facing downward and slidingly in contact with the projection of the opening blade. Since the opening blade is provided so as to be able to be lowered when the cap is rotated, the opening blade can be lowered and the spout hole can be opened by the simple operation of rotating the cap, making the opening operation easier,
When opening the package, it is hygienic because there is no need to touch the spout, opening blade, film, etc., and has excellent practical effects.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of one embodiment of the spout stopper for liquid containers according to the present invention, Fig. 2 is an explanatory diagram showing the cylindrical body of the cap in one embodiment, and Fig. 3 is a similar view of the cap from below. Fig. 4 is an explanatory drawing showing the side of the pouring spout, Fig. 5 is an explanatory drawing showing a cross section of the spout hole when unopened, and Fig. 6 is a cross section showing the lowered state of the opening blade. It is an explanatory diagram. DESCRIPTION OF SYMBOLS 1... Spout stopper, 2... Spout tool, 20... Cylindrical part, 3... Cap, 4... Opening blade, 5... Protrusion, 6... Cylindrical body, 7... Guide slope, a... ...pouring hole, b...film, A...pouring port.

Claims (1)

[Claims for Utility Model Registration] A pouring spout, which is attached to a spouting hole of a liquid container sealed with a breakable film and has a cylindrical portion corresponding to the spouting hole; It consists of a generally cylindrical opening blade that is inserted and has a cutting edge on the lower edge, and a cap that is attached to cover the cylindrical part, and the inner surface of the cylindrical part and the outer surface of the opening blade opposite thereto. Both are provided with rotation preventing means that are movable vertically in sliding contact with each other, and the opening blade is provided so as to be movable up and down with respect to the cylindrical portion, and the opening blade is located within the upper end of the cylindrical wall portion of the opening blade. The cap includes a cylindrical body having a guide slope facing downward and slidingly in contact with the protrusion of the opening blade, so that the opening blade can be lowered when the cap is rotated. A spout stopper for liquid containers.