JPH0619485Y2 - Synthetic resin spout - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is a spout attached to an opening of a flexible container so as to close the opening, and used for putting in and taking out a contained item in the container. It is about.

[Prior Art] FIG. 3A is a front view showing a conventional spout. Third B
The figure is an explanatory view when a conventional spout is fixed to a sheet-shaped container 10. As shown in the figure, the spout is heat-sealed at a fusion-bonded portion 11 to a sheet-shaped container 10 filled with contents. Then, it is used as an aerosol type by accommodating it with gas in an aerosol can, or installing a pump that penetrates the spout and extends to the inside of the container and stores them in an outer container and is used as a despacer. ing. In that case, the cylindrical body 7 is provided with holes 8 for absorbing the air for removing the air remaining in the upper part of the container when filling the content (FIG. 3A).

[Problems to be Solved by the Invention] However, if the inside of the container becomes a vacuum each time suction is performed, as shown in FIG. 3B, the hole 8 and the lower opening 9 of the cylindrical body 7 are blocked by the container itself. The aerosol type is inconvenient because it cannot be degassed or the contents (hatched portion) cannot be taken out, and the despacer cannot degas.

[Means for Solving the Problems] The present invention provides a tubular mouth portion, a tubular body connected to the mouth portion,
And a fusion-bonding portion provided on the upper end of the cylinder having a pair of fusion-bonding surfaces fused to the inner surface of the opening of the container, the fusion-bonding surface being a peripheral wall of the upper end of the cylinder. In a synthetic resin spout that includes a pair of thin plate-shaped taper surfaces that project in opposite directions from each other and extends on the peripheral wall of the upper end of the tubular body, divide the tubular body into two pieces that extend in the longitudinal direction and that face each other. A rib provided with a plurality of protrusions, which is provided on the cylindrical body with a pair of cutout portions, is located outside the cutout portion of the cylindrical body, and extends from the lower end of the fusion-bonded portion along the cutout portions. It is characterized in that it is provided with a protruding portion.

[Operation] The synthetic resin spout of the present invention is provided with a pair of notches that divide the tubular body into two opposed pieces extending in the longitudinal direction, and is located outside the notched portion of the tubular body, A rib-shaped projecting portion provided with a plurality of protrusions is provided extending from the lower end of the attachment portion along the cutout portion. This overhanging portion prevents the sheet-like containers from sticking to each other when sucking out the contents. Moreover, since the projecting portion is provided with the plurality of protrusions, the sheet-shaped container does not come into close contact with the projecting portion. Therefore, a gap is surely formed between the two sheet-shaped containers between the projecting portion and the cylindrical body, so that the residual air and the contents are effectively sucked out from the cutout portion.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

1A is a front view showing the spout of the present invention in a partial cross section, FIG. 1B is a side view of the spout of the present invention, and FIG. 1C is a sectional view taken along line 1C-1C of FIG. 1A.

First, as the material of the spout, a thermoplastic synthetic resin such as polypropylene, polyethylene resin, nylon, PET is used.

As shown in FIG. 1A, a cylindrical mouth portion 1 and a cylindrical body 2 that is connected to the lower end thereof and has a diameter slightly smaller than that of the mouth portion 1 are provided, and a pair of fusion-bonded portions 3 project from the upper portion of the peripheral wall in mutually opposite directions. I have set up. Both side surfaces of this fusion-bonded portion 3 become the fusion-bonded portions to the inner surface of the opening of the container. The upper ends of the pair of rib-shaped projecting portions 4 are attached to the lower ends of the fusion-bonded portions 3 and extend parallel to the tubular body 2 to near the lower opening. Fused part 3
The projecting portion 4 extends downward from the joining point of the cylindrical body 2 and the cylindrical body 2.
The notch portion 5 is provided so as to face with. The fusion-bonded part 3 is provided at two places on the left and right, and below each of them,
That is, two cutout portions 5 are provided on the left and right. The projecting portion 4 may have a flat rod shape, but in the present embodiment, a large number of protrusions 4a are provided on the side of the projecting portion 4 which does not face the cutout portion 5, that is, on the outer surface thereof with a certain interval in the vertical direction. I have This may be a protrusion 4b in the direction of both end faces of the projecting portion 4 as shown in FIG. 2B. The shape of the projecting portion 4 may be any shape as long as it can prevent the container from sticking during suction. Also, the notch angle of the notch 5
Whether in the normal direction of the tubular body 2 as shown in FIG. 1C or in the direction perpendicular to the line connecting the protruding portions 6-6 as in FIG. 2C,
Alternatively, it may be in any other direction.

When such a spout is used, the projecting portion 4 completely prevents the container 10 from sticking even during suction. Then, by the projecting portion 4, the container 10
Since the notch 5 is provided in the range where the effect of preventing the clinging and forming a gap between the containers, that is, in the embodiment, the notch 5 is provided at a position close to and facing the overhanging part 4, even when sucking The body 10 does not stick to the cutout portion 5 to block it.

In this way, the provision of the overhanging portion 4 near the cutout portion 5 enables the cutout portion 5 to effectively remove residual air from the contents.

[Effects of the Invention] As described above, the present invention is provided with the notch portion reaching the lower end from the protruding portion of the fusion-bonded portion on the cylindrical body, and the rib-shaped projecting portion is provided so as to face the notch portion. Therefore, the container does not stick to the notch portion 5 during the deaeration when filling the contents and the removal of the contents. It is possible to completely prevent the containers from sticking to each other at the overhanging portion 4, and it is possible to effectively deaerate and take out the contents when filling the contents.

[Brief description of drawings]

FIG. 1A is a front view showing a partial cross-section of an embodiment of the spout of the present invention, and FIG. 1B is a side view of the spout of the present invention.
FIG. 1C is a sectional view taken along the line 1C-1C in FIG. 1A. 2A to 2C show another embodiment of the spout according to the present invention, and FIG. 2A is a front view showing a partial cross section, FIG. 2B.
The drawing is a side view, and FIG. 2C is a sectional view taken along line 2C-2C in FIG. 2A. FIG. 3A is a front view showing a conventional spout, and FIG. 3B is an explanatory view showing a conventional spout during suction. 1 ... Mouth, 2, ... Cylinder, 3 ... Fused portion, 4,6 ...
... Overhanging part, 4a, 6a ... Protrusion, 5 ... Notched part, 10 ... Container.

Claims (1)

[Scope of utility model registration request] 1. An upper end portion of a tubular body having a tubular mouth portion, a tubular body connected to the mouth portion, and a pair of fused surfaces fused to the inner surface of the opening of the container. It has a fused part,
The fusion bonding surface includes a pair of thin plate-shaped tapered portions protruding in opposite directions from the peripheral wall of the upper end of the tubular body, extending on the peripheral wall of the upper end of the tubular body, in a synthetic resin spout,
The tubular body is provided with a pair of cutout portions for dividing the tubular body into two pieces extending in the longitudinal direction and facing each other, and is located outside the cutout portion of the tubular body, and from the lower end of the fusion-bonded portion to the cutout portion. A synthetic resin spout, which is provided with a rib-shaped projecting portion having a plurality of protrusions and extending along the rib.