JP2000103455A - Pour-out port device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve unsealability and mold release characteristics by providing a cut portion surrounding a thin weak line ring on a seal plate on a lower part of the inside of a pour-out cylinder, by making a pillar having a pull ring on an upper end stand along an inner periphery of the cut portion and also by applying crimps on an internal face of the pull ring. SOLUTION: The pour-out port device 100 comprises a flange 120 and a pour-out cylinder 110 having a threaded portion 111 with a cap, while a cut portion 240 surrounding a thin weak line ring 131 is provided on a seal plate 130 on a lower part of the pour-out cylinder 110 and also a pillar 150 having a pull ring 160 at an upper end is provided on an inner periphery of the cut portion 140. Crimps are applied on an internal face 161 of the pull ring 160. Thus, mold release characteristics can be improved when the pour-out port device 100 is to be injection-molded using polyethylene. In addition, when a paper container for liquid with the pour-out port device 100 attached is to be unsealed, a finger tip can be hooked on the pull ring 160 without being slipped, thereby insuring easy and smooth unsealing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spout to be attached to the top of a liquid paper container or the mouth and neck of a bottle.

[0002]

2. Description of the Related Art Conventionally, containers used for liquid contents of foods and non-foods are provided with an inner lower part of a pouring cylinder in order to have a perfect sealing property at the time of distribution storage and an easy opening property at the time of use. A plastic spouting tool provided with a sealing plate, a cut-out portion provided around the thin-walled weakened line ring at the opening position, and a column having a pull ring (pull ring) at the upper end on the inner periphery of the cut-out portion. Have been used in a wide range of applications. The spout device (100) is attached to an inclined plate (311) at the top of a container body (310) of a prismatic liquid paper container such as a fruit juice beverage, for example, a gable roof type liquid paper container (300) shown in FIG. It is heat-fused and protruded to cap the cap (200), or it is screwed or occluded and attached to the mouth and neck of a bottle such as a seasoning,
The cap is worn. Then, when opening the container, remove the cap from the spouting tool, put a fingertip on the pull ring housed inside the spouting tube of the spouting tool, and pull it upward and forward to cut around the cutout of the sealing plate. The thin-walled fragile wire ring to be installed was torn, and the container was opened.

[0003]

However, in the above-described conventional spout device, when the fingertip is hung on the pull ring when opening the container, the inner surface of the pull ring is smooth and slippery, and the fingertip is attached to the pull ring. And it was difficult to open. In addition, when the spout is manufactured by injection molding, the pull ring is caught by the mold and is difficult to release, and the thin-walled brittle wire ring may be damaged.

In order to improve the slip of the pull ring, Japanese Patent Publication No. Hei 6-44811 discloses a pull ring in which an anti-slip ridge is formed in a circumferential direction on an inner surface of the pull ring opposite to a pillar. However, there was a problem in the releasability from the mold.

The present invention solves the above-mentioned problems of the conventional spouting device. It is easy to firmly hang a fingertip on the pull ring when unsealing it. An object of the present invention is to provide a spout having good releasability.

[0006]

According to the present invention, as shown in FIG. 1, a thin-walled weak wire ring (131) is formed around a sealing plate (130) provided below the inside of a pouring cylinder (110). A cutout (140) to be provided, and a column (150) having a pull ring (160) at the upper end on the inner peripheral edge of the cutout.
A spout tool made of plastic, wherein the inner surface (161) of the pull ring (160) is embossed.

[0007]

When the container is opened, the spout device of the present invention
Put your fingertip on the pull ring housed inside the spout cylinder of the spout and pull it to tear the thin weak line ring of the sealing plate, separate the cutout from the sealing plate and open the container, but pull ring Since the inner surface of the is textured, the fingertip can be hung firmly on the pull ring without slipping.

In the spout device of the present invention, when manufactured by injection molding, the cavity on the inner surface of the pull ring of the mold is formed with irregularities for embossing, and the molded product is released from the mold. Occasionally, air easily enters between the molded product and the cavity surface, and the releasability of the pull ring of the molded product is improved.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In a spouting device of the present invention, a spouting tube is projected from the top of a liquid paper container, and the upper surface of a lower flange is heat-sealed to the inner surface of the container by ultrasonic sealing or the like. It is attached by screwing or biting to the mouth and neck of the bottle, and is used with a cap attached. Usually, the thin brittle wire ring is manufactured by injection molding using a thermoplastic resin such as polyethylene which easily tears the thin brittle wire ring when the container is opened. Next, by the spout of one embodiment of the present invention shown in FIG.
The structure will be described in detail.

[0010] An outlet device (100) according to an embodiment of the present invention.
As shown in FIG. 1, as shown in FIG. 1, an injection cylinder (110) having a screw portion (111) with a cap provided on an outer peripheral surface is provided upright on an inner peripheral edge of a flange (120). A sealing plate (130) is provided on the lower side of the inside, and a cutout (140) is provided on the sealing plate to surround the thin-walled weak line ring (131), and a pull ring (160) is provided on the inner peripheral edge of the cutout. The support (150) is provided upright, and the inner surface (161) of the pull ring (160) is subjected to graining.

The spout of the present embodiment described above was manufactured by injection molding using polyethylene, but the releasability of the pull ring was good, and no thin brittle wire ring was broken. In addition, when opening the liquid paper container to which the spout device of the present embodiment is attached, the fingertip can be hung firmly without slipping on the pull ring, and the container can be easily opened.

[0012]

According to the spout device of the present invention, since the inner surface of the pull ring is subjected to a graining process, when the container is opened, the pull ring can be hung firmly on the pull ring without sliding the fingertip. Easy to open.

Further, when the spout device of the present invention is manufactured by injection molding, the inner surface of the pull ring is subjected to embossing,
Good releasability of the pull ring of the molded product.

[Brief description of the drawings]

FIG. 1 is a sectional view of a spout according to an embodiment of the present invention.

FIG. 2 is a perspective view showing an external appearance of an example of a liquid paper container.

[Description of Signs] 100 ·············································································································································· ... Pull ring 161 Inner surface 200 Cap 300 Liquid paper container 310 Container body 311 Top inclined plate

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E060 AA05 CF06 DA14 EA03 EA13 3E084 AA05 AA12 AA34 AB01 BA03 CA01 CB01 CB02 CB04 CC04 DA01 DB12 DC04 FA09 FB01 FD13 GA04 GB04 GB08 GB17 KA13 KB01 LA03 LA17 LA17 LA17

Claims (1)

[Claims] 1. A cut-out portion provided around a thin weakened line ring is provided in a sealing plate provided below the inside of a pouring cylinder portion, and a column having a pull ring at an upper end thereof is provided on an inner peripheral edge of the cut-out portion. A spout made of plastic, wherein an inner surface of the pull ring is subjected to graining.