JP2007223668A - Pouring spout - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pouring spout of a pull-top type, which is improved in releasability and good in usability. <P>SOLUTION: The pouring spout is formed of: a base 1 which has a pouring cylinder 1c and is rigidly held at a mouth of a container; and a sealed barrier 2 which is integrally formed on the base 1 inside the pouring cylinder 1c, and communicates with the interior of the container when torn along a line m to be broken. The pouring spout has a pull ring 4 which is connected to the sealed barrier 2 via a column portion 3, and forms a recess 5 between mutually opposed connection portions, to thereby facilitate expansion/contraction of a diameter d thereof. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a synthetic resin pouring plug that is opened by tearing a hermetic barrier along a planned fracture line.

  The spigot that allows the contents to be poured out by pulling the pull ring and tearing the sealing barrier along the planned break line makes it easy to determine whether the tampering has been performed and the contents in the container. In recent years, since the quality of products can be maintained for a long time, it is frequently used for containers for cooking oil, soy sauce or beverages.

Such a spout is usually formed into a desired shape by injection molding (see, for example, Patent Document 1). In particular, the pull ring part is not easily deformed toward the center. Difficult to take out from the mold (poor mold release), forced to pull out, and may cause scratches or damage to the spout, making it difficult to stabilize the quality It was in.
JP-A-7-257564

  An object of the present invention is to propose a novel pouring plug that improves the releasability when the pull ring can be easily deformed in the radial direction and improves the releasability when being pulled out from the mold, and is easy to use even when the plug is opened.

The present invention has a base that is fixedly held at the mouth portion of the container, and an opening that is integrally formed with the base inside the base and that is connected to the inside of the container by tearing along a planned fracture line. A spout with a hermetic barrier forming
A spout plug that is connected to the hermetic barrier via a pillar portion and has a pull ring that forms a concave portion between the connecting portion areas to facilitate expansion and contraction of the diameter. Is preferably in the shape of a substantially V-shape.

  By forming a recess in the connecting area between the pillar and the pull ring, the opposing sides (or walls) of the recess are easily deformed in the direction of approaching or separating from each other, and the diameter of the pull ring easily expands or contracts accordingly. This will improve releasability. Moreover, since the diameter of a pull ring expands at the time of opening, it becomes easy to use because it becomes easy to catch a finger.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 is a cross-sectional view showing an embodiment of a spout according to the present invention.

  Number 1 in the figure is the base. The base 1 has an inner cylinder 1a and an outer cylinder 1b on the lower side thereof, and has a structure in which a groove formed between them is fitted into the mouth of the container and locked by an undercut C. In addition, a dispensing cylinder 1c is provided at the top.

  Also, 2 is a sealing barrier that is integrally formed with the base 1 inside the dispensing cylinder 1c, and that forms an opening connected to the inside of the container by tearing along a planned fracture line (formed by a groove) m. The column part 4 provided in 2 is a pull ring provided at the upper end of the column part 3, and the sealing barrier 2, the column part 3 and the pull ring 4 are integrally formed by a molding method such as injection molding.

  Reference numeral 5 denotes a recess provided between the connecting portions of the column portion 3 and the pull ring 4. The concave portion 5 has a shape that is cut out in a substantially V shape from the upper end of the pull ring 4 toward the column portion 3, and moves in a direction in which the opposing sides 5 a and 5 b are close to and separated from each other. This facilitates the expansion / contraction of the diameter d of the pull ring 4.

  The conventional pull-top type pouring tap has a shape as shown in FIGS. 3 and 4, and the pouring tap is formed by using a mold. It was difficult to deform toward the surface, and it was not easy to remove from the mold. On the other hand, since the diameter of the pull ring 4 is easily reduced by the displacement in the recess 5, the spout according to the present invention can be easily taken out from the mold, and when the sealing barrier 2 is torn, the diameter of the pull ring 4 can be reduced. Since it expands, the finger catches better.

  FIG. 5 shows another example of the embodiment according to the present invention. This pouring tap has a concave portion 5 with a shallow depth, and although the diameter d of the pull ring 4 is slightly smaller than that shown in FIG. 1, the releasability is improved. Usability is also improved. The shape of the recess 5 is not limited to the shape shown in the above embodiment, and various shapes such as a substantially rectangular shape and a substantially U shape can be adopted as long as the diameter d of the pull ring 4 can be expanded and contracted. Can do.

  The mold release property is improved, and a pull-top type pouring tap that is easy to use can be provided.

It is the figure which showed embodiment of the pouring tap according to this invention. It is an external appearance perspective view of the principal part of the pouring tap shown in FIG. It is the figure which showed the cross section of the conventional pouring tap. It is an external appearance perspective view of the principal part of the pouring tap shown in FIG. It is the figure which showed other embodiment of the pouring tap according to this invention.

Explanation of symbols

1 base
1a Inner cylinder
1b outer cylinder
1c Pouring tube 2 Sealing barrier 3 Column 4 Pull ring 5 Recess
5a Side of recess
5b Side of recess m m Expected fracture line d Diameter

Claims (2)

A base having a pouring cylinder fixedly held at the mouth of the container, and a sealing barrier which is integrally formed with the base inside the pouring cylinder and forms an opening connected to the container by tearing along the planned fracture line A pouring tap with
A spout plug, which is connected to the sealing barrier via a pillar portion and has a pull ring that forms a recess between the connecting portion areas to facilitate expansion and contraction of the diameter.   The pouring tap according to claim 1, wherein the concave portion is substantially V-shaped.

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