JP3017016U - Spout member - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a spout member fused to the opening of a plastic bag. A tubular body pouring outlet member having a tubular body provided with a pouring outlet in the center thereof, wherein a plurality of fins are provided on the left and right sides of the side wall portion of the tubular body.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a spout member which is fused to an opening of a plastic bag for storing liquids such as beverages, seasonings and chemicals and which can prevent leakage of contents.

[0002]

[Prior art and problems to be solved]

 A heat-adhesive synthetic resin film or a plastic having a peripheral edge portion heat-bonded to at least one surface of a laminated film of a paper and a synthetic resin film or a metal foil with a heat-adhesive synthetic resin film. Bags are widely used as bags for storing liquids such as beverages, seasonings, and drug solutions. These plastic bags are filled with contents and then sealed, or a tube-shaped member is adhered to the bags.When pouring out the contents, in the former case, a part of the bag is cut off. In the latter case, measures such as incision inside the tube-shaped member were taken. However, these methods have drawbacks in that workability is difficult, fusion is not completely performed, and liquid leakage occurs.

In order to improve these drawbacks, for example, the cross-sectional shape is boat-shaped, and the fins are thin-walled as they go to the left and right tip parts, and they are attached between both side surfaces of the opening of the plastic bag. An outlet member has been proposed (see Japanese Utility Model Publication No. 53-15659). However, even when the wall thickness of the spout member becomes thinner toward the left and right ends, the spout member and the double-sided film of the bag are still difficult to be completely heat-bonded. Therefore, the present inventor has completed the present invention as a result of various studies to improve this point, and the present invention can easily and completely heat-bond a plastic bag and prevent leakage of contents. It is an object of the present invention to provide a spout member capable of performing the above.

[0004]

[Means for Solving the Problems]

 A gist of a first invention of the present application is a tubular body spouting member in which a spouting port is provided in the center of a tubular body, wherein a plurality of fins are provided on left and right sides of a side wall portion of the tubular body. The gist of the second invention is a spout member having a boat-shaped cross-section with a spout at the center, and the side wall of the boat-shaped member becomes thinner toward the left and right ends. It is a tubular body spout member having a spout in the center, which is a strip and is provided with a plurality of through holes in the portion. That is, since the spout member according to the present invention is provided with a plurality of fins or a plurality of holes, the film on both sides of the packaging bag can be surely heat-bonded with the fins or the film on both sides through the holes. Therefore, it is possible to prevent the liquid from leaking from around the spout member. In particular, when a spout member having a plurality of fins is used, it is possible to prevent leakage of the content items around the fin peripheral portion.

A spout member according to the present invention is shown in the drawings. 1 is a perspective view of a spout member of the present invention according to claim 1, and FIG. 2 is a spout member of the present invention according to claim 2. In FIG. 1, a spout 2 is provided in the center of a tubular body 1, and a plurality of fins 3 are provided on the left and right of the side wall of the tubular body 1. Further, in FIG. 2, the cross-sectional shape having the spout 2 at the center has a boat shape and becomes thinner toward the tip thereof, and the through hole 4 is provided in the thin portion. Is.

When adhering these spout members to the packaging bag, the spout holes according to the present invention are provided in the openings of the plastic bag 5 in which the three edges are heat-sealed, leaving the openings. By holding and fusing with two side films, the fins can be completely integrated with the side film of the bag and firmly adhered in the case of a tubular body spout, and the cross-sectional shape In the boat-shaped type, the films on both sides can be firmly bonded together through the through holes.

However, the material used as the spout in the present invention is high-density polyethylene, low-density polyethylene, polypropylene, or the like, and the spout has various dimensions depending on the size of the packaging bag to be fused. It can be changed, but the diameter is usually around 10 mm, the size of the fin is about 1 mm in width and 5 mm in length, and the size of the through hole is about 1 m / m in width x 5 m / m in length. Is.

[0008]

[Effect of device]

 As described above, since the fin of the side wall portion or the film of the through hole portion of the present invention is thin, it is flexible and easy to be integrated with the packaging bag. As a result, the bonding can be performed reliably, and the drawbacks such as liquid leakage, which were apt to occur in the past, could be eliminated.

[Brief description of drawings]

FIG. 1 is a perspective view of a spout member according to the invention of claim 1 of the present application.

FIG. 2 is a perspective view of a spout member according to the invention of claim 2 of the present application.

FIG. 3 is a perspective view of the spout according to the present invention fused to a plastic bag.

[Explanation of symbols]

1 spout member 2 spout 3 fin
4 through hole 5 packaging bag

Claims (2)

[Scope of utility model registration request] 1. A spouting member for a tubular body, wherein a spouting port is provided in the center of the tubular body, wherein a plurality of fins are provided on the left and right sides of the side wall of the tubular body. 2. A spout-shaped member having a cross-sectional shape in which a spout is provided at the center of a boat shape, and the side wall portion of the boat shape is a thin piece as the left and right ends become, and An outlet member having a plurality of through holes.