JPH0632323U - Spout plug - Google Patents

Abstract

(57) [Summary] [Purpose] When the film is broken by pushing the inside plug, the broken film piece should be separated from the punched part to ensure the pouring of the contents. [Structure] The protruding height of a triangular tooth 4 is sequentially changed from the triangular tooth 4 adjacent to the toothless portion 5 to the triangular tooth 4 at a position facing the toothless portion 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a spout plug attached to a paper container containing a liquid or the like, the spout plug having an inner plug pushed in to be opened.

[0002]

[Prior art]

 Conventionally, in this type of spout plug, as shown in Japanese Utility Model Publication No. 55-150728 and Japanese Utility Model Publication No. 58-37828, a spout which is sealed by a rupturable film in a container is used. Some are composed of a spout body attached to the mounting portion and an inner spout movably arranged in the spout body. At the time of opening with the spout plug, the film is broken and opened by pushing down the inner plug so that the contents can be poured out. The inner plug is provided with a continuous blade and a plurality of triangular teeth connected to each other over the lower end of the inner plug, as shown in the above publication, so that the film can be reliably broken. .

Further, in order to prevent the broken film pieces from falling into the container, a toothless portion having no teeth is provided at the lower end of the inner stopper, and the film stuck to the inner surface of the container is broken. There is a device to keep a part of the film continuous.

[0004]

[Problems to be solved by the device]

 In order to break and open the film that seals the spout attachment part, the inner plug is pushed in as described above, but in the inner plug having a structure in which a plurality of triangular teeth are connected, It was designed so that the film could be easily broken by changing the protruding height of the triangular teeth. This will be specifically described with reference to FIGS. 9, 10 and 11. Reference numeral 1 is a spout plug, and a spout body 2 having a flange corresponding to a spout attachment portion of a container, and a spout book. The inner plug 3 is movably arranged in the tubular portion of the body 2. The lower end of the inner plug 3 is provided with a plurality of triangular teeth 4 connected to the lower end and one toothless portion 5 that does not raise the triangular teeth. The inner plug 3 is arranged such that a radial direction a passing through the toothless portion 5 and a position facing the toothless portion 5 is orthogonal to the vertical direction of the container, and the air circulation path 6 is on the upper side. The triangular teeth 4 are formed so that the protruding heights of the teeth located at the center of the upper and lower sides are large, and the protruding heights of the triangular teeth 4 on the toothless portion 5 side and the triangular teeth 4 opposite to the triangular tooth 4 are large. It is formed to be the smallest. FIG. 12A shows the breaking direction of the film b when the inner plug is used, and the film b is broken from the top to the bottom as shown by the arrow c.

However, when the inner plug having the above-mentioned upper and lower triangular teeth most protruding is used, the film can be broken, but normally the film is stretched like aluminum and polyethylene. Since it is composed of a laminate of materials with different ratios, the film pieces that were ruptured due to the difference in the stretching conditions at the time of press cutting curl up and down and become almost closed without separating from the punched part, and the contents are poured. There was a problem that it was difficult to get out.

In view of the above-mentioned circumstances, therefore, the present invention has an object to push apart the film piece to be broken away from the punched portion when the inner stopper is pushed to break the film, and the contents are poured out. The purpose is to ensure that.

[0007]

[Means for Solving the Problems]

 The present invention has been made in view of the above-mentioned problems, and a cap body attached to a cap mounting portion sealed by a rupturable film of a container for containing a liquid and the like, and a movable body inside the cap body. A pouring spout equipped with a plurality of contiguous triangular teeth that are arranged to be capable of breaking the film of the spigot mounting part and an inner spigot provided at the lower end with one toothless part that does not break the film. And a protrusion height of the triangular tooth, which is changed in order from the triangular tooth adjacent to the toothless portion to the triangular tooth at a position facing the toothless portion, thereby providing a spout plug. This is to solve the problem.

[0008]

[Action]

 In the present invention, since the tooth protrusion height changes in order from the triangular tooth adjacent to the toothless portion to the triangular tooth at the position facing the toothless portion, for example, as shown in FIG. The breaking direction is unidirectional, and the broken film pieces curl away from the punched part.

[0009]

【Example】

 Next, the present invention will be described in detail based on the embodiment shown in FIGS. It should be noted that portions having the same configurations as those of the conventional example shown in FIGS. 9, 10, and 11 are denoted by the same reference numerals, and description thereof will be omitted. 1 to 3 show a first embodiment. At the lower end of the inner plug 3, a plurality of contiguous triangular teeth 4 and one toothless portion 5 located on the radial direction a orthogonal to the vertical direction of the container are provided. In the first embodiment, the protruding height of the triangular tooth 4 is set to be large for the triangular tooth 4 adjacent to the toothless portion 5 and small for the triangular tooth 4 at the position facing the toothless portion 5. As seen from the direction orthogonal to the radial direction a, the straight line d connecting the tip positions of the triangular teeth 4 is inclined.

When the inner stopper 3 is pushed in, the triangular tooth 4 adjacent to the toothless portion 5 comes into the film b first, and then the lower triangular tooth 4 enters in order. As shown in FIG. 6 (a), the film b is cut in one direction, and the broken film piece b curls in the radial direction a and separates from the punched portion (see FIG. 6 (b)).

4 and 5 show a second embodiment. In this embodiment, the protruding height of the triangular tooth 4 is set to be small for the triangular tooth 4 adjacent to the toothless portion 5 and large for the triangular tooth 4 at the position facing the toothless portion 5, When viewed from the direction orthogonal to the direction a, the straight line d connecting the tip positions of the triangular teeth 4 is inclined in the direction opposite to that of the first embodiment.

When the inner stopper 3 is pushed in, the triangular tooth 4 in a position opposite to the toothless portion 5 is inserted first with respect to the film b, and then the lower triangular tooth 4 is sequentially inserted and finally missing. The triangular tooth 4 adjacent to the tooth portion is cut, the film b is cut in one direction as shown in FIG. 6C, and the broken film piece b is curled in the radial direction a and punched out. It becomes separated from the minute (see FIG. 6D).

In the present invention, the protruding height of the triangular teeth 4 of the inner plug 3 changes in sequence as described above, but the height of each triangular tooth 4 (distance from the valley portion to the mountain portion) is constant. The case and the case of decreasing the size in sequence can be modified. Also, taking the triangular tooth itself into consideration, if the tooth height (the distance from the valley portion to the crest portion) is large, the film can be satisfactorily broken. Therefore, as shown in FIG. 7, a type (A) in which the height of the triangular teeth changes and a type (B) in which the height of the triangular teeth does not change are prepared to examine the easiness of breaking of the film. As Example 1, the type A was used, and the height e of the triangular teeth was 2.7 mm, and the height f of the triangular teeth was f 2 = 1.7 mm. As Example 2, the type B was used, and the height g of the triangular teeth was 2.7 mm. As Example 3, the type A was used, and the height e of the triangular teeth was 3.0 mm and the height f of the triangular teeth was f 2 = 2.5 mm. As Example 4, the B type was used, and the height g of the triangular teeth was 2.5 mm. When the film was ruptured with these various inner stoppers, the film could be ruptured in all cases and an open state that does not hinder pouring can be obtained. However, considering the ease of rupture, Example 4 The order of the second embodiment, the third embodiment, and the first embodiment follows.

Further, in addition to the configuration in which the height is changed by the one-sided inclination described above, when the position where the triangular teeth 4 are provided is on the inner peripheral side as shown in FIG. 8, a further excellent result can be obtained. That is, the triangular tooth inside and outside the film seal part (for example, at the spout attachment part, attach a planar film from the inside of the container, attach a toroidal film from the outside of the container, and The seal part of is along the inner circumference of the container pouring hole, and the inner and outer films protect the inner peripheral edge of the container pouring hole.), And the inside of the container pouring hole after opening There is also no risk of the contents permeating the peripheral edge.

[0015]

[Effect of device]

 As described above, according to the present invention, the spout plug is a spout body attached to a spout attachment portion sealed by a rupturable film of a container for containing a liquid, and the spout body inside the spout body. A plurality of triangular teeth connected to break the film of the spout attachment part and one inner tooth part that does not break the film at the lower end. The projecting height of the triangular tooth is changed in order from the triangular tooth adjacent to the toothless portion to the triangular tooth at a position facing the toothless portion.

As a result, the film piece that is broken by the inner stopper curls and separates from the punched portion of the film, so that the contents can be poured out without worrying about closure. Further, the triangular teeth located on one end side of the lower end of the inner stopper sharply pierce the film, so that the film is easily broken and the film can be easily ruptured. Furthermore, without changing the mold for the spout body or cap, simply changing the mold for the inner plug can prevent the closure by the film piece, which does not increase the cost. It has an excellent effect.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an example of an inner plug in one embodiment of a spout according to the present invention.

FIG. 2 is an explanatory view showing an example of an inner plug in cross section.

FIG. 3 is an explanatory view showing a state in which a part of the peripheral surface shape is similarly developed in an example of the inner plug.

FIG. 4 is an explanatory view showing another example of the inner plug.

FIG. 5 is an explanatory diagram showing a state in which a part of the peripheral surface shape in another example of the inner plug is also developed.

FIG. 6 is an explanatory view showing a breaking direction of a film due to an inner plug and a curled film piece.

FIG. 7 is an explanatory diagram showing a modified example of the triangular teeth of the inner plug.

FIG. 8 is an explanatory diagram showing an example in which the triangular teeth of the inner plug are arranged on the inner peripheral side.

FIG. 9 is an explanatory diagram showing a conventional example.

FIG. 10 is an explanatory view showing a mounting state of the spout plug.

FIG. 11 is an explanatory diagram showing a protruding state of triangular teeth in a conventional example.

FIG. 12 is an explanatory view showing a breaking direction of a film by a conventional inner stopper.

[Explanation of symbols]

 1 ... Pouring spout 2 ... Spout body 3 ... Inner plug 4 ... Triangular tooth 5 ... Missing tooth part

Claims (3)

[Scope of utility model registration request] 1. A cap body attached to a cap mounting portion sealed by a rupturable film of a container for containing a liquid, and a cap mounting portion movably arranged in the cap body. In a spout provided with a plurality of concatenated triangular teeth that break the film and one missing tooth portion that does not break the film and an inner plug provided at the lower end, the protrusion height of the triangular tooth, An outlet plug, wherein the triangular tooth adjacent to the toothless portion is changed in order from the triangular tooth at a position facing the toothless portion. 2. The spout according to claim 1, wherein the protruding height of the triangular tooth is large for the triangular tooth adjacent to the toothless portion and small for the triangular tooth at a position facing the toothless portion. 3. The spout according to claim 1, wherein the protruding height of the triangular tooth is small for the triangular tooth adjacent to the toothless portion and large for the triangular tooth at a position facing the toothless portion.