JP2006069553A - Bung for paper-made container for liquid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bung for a paper-made container for liquid which is mounted on the upper part opening f of the paper-made container 50 for liquid prepared of a paper-laminated material or the like which stores a juice, wines, a japanese sake with a mellow fragrance, whose ordinary upper face is flat or a gable roof-shape, and is opened by rotating a screw-type cap 20 to break a breakable film 60 by sawteeth c, c, c, ... of a lowering cylindrical body 30 lowered, and which is provided with a clear unsealing feeling at a first time being clearly different from a second opening. <P>SOLUTION: In the bung for the paper-made container for liquid, facing projections 10 and 10 for providing an unsealing feeling in which inclined projected cams b and b of the lowering cylindrical body 30 overcome and descend are provided on the outer face side on the lower part of a pushing-down cylindrical body 21 of the screw-type cap 20, and on left and right of these facing projections 10 and 10 for providing the unsealing feeling, a pair of longitudinal cutting channels 11 and 11 respectively cutting the pushing-down cylindrical body 21 are provided. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention is attached to the upper opening f of a liquid paper container 50 made of a paper laminate material or the like, which contains a scented juice, Western liquor, Japanese sake, etc., and has a flat top surface or a gable roof shape. The saw blades c 1, c 2 of the descending cylinder 30 lowered by rotating the screw-type cap 20.
, c,... relates to a stopper for a liquid paper container having a first clear opening feeling that breaks and opens the breakable film 60.

Conventionally, a push-down cylindrical body 21 provided with inclined convex cams a, a facing the outer surface side is connected to the inner surface of the top plate, and the screw type cap 20 shown in FIG. 4B is opposed to the inner surface side. A descending cylindrical body 30 shown in FIG. 4C, which has an inclined convex cam b 1, b and a plurality of saw blades c 1, c 2, c 3,... 4A, a screw cap for the liquid paper container shown in FIGS. 3A and 4A, comprising a screw-type cap main body 40 shown in FIG.
Liquid paper container 50 made of a paper laminate material having various barrier properties such as a normal flat top surface or a gable roof as shown in FIGS. 4E and 4F, which contains juice having a fragrant fragrance, Western liquor, Japanese sake, etc. As shown in FIG. 3A, the screw-type plug body 40 is melted on the upper surface around the upper opening f sealed with a breakable film 60 made of an aluminum foil laminated material having various barrier properties. As shown in FIG. 3B, the lower surface of the flanged flange d is attached by heat-sealing via a fusion donut plate 61 having excellent heat-fusion properties, and then the screw-type cap 20 is rotated. The opposing inclined convex cams a 1, a of the push-down cylindrical body 21 rotating in the direction and the opposing inclined convex cams b 1, b of the descending cylindrical body 30 slide, respectively, so that the inner surface side of the plug body 40 The lowering cylindrical body 30 fitted in (see FIG. 4A) Is lowered, and the breakable film 60 is broken and opened by the saw blades c 1, c 2, c 3,... Of the descending cylinder 30, and the screw-type cap 20 is simply removed as shown in FIG. In general, a mouthpiece for a liquid paper container that can be opened and has an excellent effect of retaining a rich scent is widely used.

The patent literature is as follows.
Japanese Utility Model Publication No. 6-42983

  However, with regard to the conventional stoppers for liquid paper containers shown in FIGS. 3 and 4, which have excellent fragrance retention, etc., the customer purchases juice, liquor, sake, etc. contained in the liquid paper container 50. When the screw-type cap 20 is rotated and opened and opened for the first time, the breakable film 60 is broken and opened by the saw blades c 1, c 2, c 3,. Although there is resistance (open feeling), the resistance is slight and without sound, so there is no clear opening feeling at the first time. There was a concern that the liquid paper container 50 containing juice, Western liquor, Japanese sake, etc. with a fragrant taste might have been opened and opened before purchase due to mischief or fraud.

3 and 4, when the screw cap 20 is rotated and opened for the second time, as shown in FIGS. 3B and 3C, the descending cylindrical body 30 is used. The breakable film 60 broken and opened by the saw blades c 1, c 2, c 3,. The inclined convex cams 30a, a and the inclined convex cams b, b opposite to the descending cylindrical body 30 are respectively fitted to the inner surface side of the plug body 40 and lowered. However, since it remains fitted and lowered, it can be opened with almost no resistance as in the case of a normal screw-type bottle cap (not shown).

  Accordingly, an object of the present invention is to provide an upper opening f of a liquid paper container 50 made of a paper laminated material or the like having a flat top surface or a gable roof shape, which contains a juice having a rich fragrance, Western liquor, Japanese sake and the like. The film 60 that can be broken by the saw blades c 1, c 2, c 3,... Of the descending descending cylindrical body 30 is broken and opened by rotating the screw-type cap 20. The object of the present invention is to provide a mouthpiece for a liquid paper container, which is clearly different from the time when the liquid paper container is given.

The stopper for the liquid paper container according to claim 1 of the present invention is a screw type in which a pressing cylindrical body 21 provided with inclined convex cams a, a facing the outer surface side is connected to the inner surface of the top plate. The cap 20, the inclined convex cams b 1, b opposite to the inner surface side, and a plurality of saw blades c 1, c 2, c 3,. A liquid paper container cap comprising a descending cylindrical body 30 and a screw-type cap main body 40 provided with a fusion flange d at the bottom, and is a paper having a flat upper surface or a gable roof shape. The lower surface of the fusion flange d of the screw-type cap body 40 is thermally fused to the upper surface around the upper opening f sealed with the breakable film 60 of the liquid paper container 50 made of laminated material or the like. After the mounting, by rotating the screw-type cap 20, the descending cylindrical body 30 fitted to the inner surface side of the plug body 40 is lowered. In the conventional stopper for liquid paper container shown in FIGS. 3 and 4, the film 60 that can be broken by the saw blades c 1, c 2, c 3,... ,
As shown in FIG. 1, on the outer surface side of the lower part of the push-down cylindrical body 21 of the screw-type cap 20, the inclined convex cams b 1 and b 2 of the descending cylindrical body 30 get over and descend, and are opposed to each other. , 10 are provided for the liquid paper container.

In addition, as shown in FIG. 2C, the stopper for the liquid paper container according to claim 2 of the present invention is provided with a pressing cylinder 21 provided with inclined convex cams a, a facing the outer surface side. A cap main body 40 provided with a screw-type cap 20 connected to the inner surface of the plate, inclined convex cams b 1, b opposite to the inner surface side, and a large number of saw blades c 1, c 2, c 3,. A liquid paper comprising a descending cylindrical body 30 fitted and lowered on the inner surface side, and a screw-type cap body 40 provided with a fusing flange d at the bottom and sealed with a film 60 capable of breaking the lower end opening. The screw-type cap main body 40 is melted on the lower surface around the upper opening f of the liquid paper container 50 made of a paper laminate material having a flat top or a gable roof shape. After the upper surface of the fitting flange d is attached by heat fusion, the screw type key is installed in the same manner as the liquid paper container stopper shown in FIGS. By rotating the cup 20, the descending cylinder 30 fitted to the inner surface side of the plug body 40 is lowered, and the film 60 that can be broken by the saw blades c 1, c 2, c 3,. In the stopper for the liquid paper container that breaks and opens,
As shown in FIG. 2, on the outer surface side of the lower part of the push-down cylindrical body 21 of the screw-type cap 20, the inclined convex cams b 1 and b 2 of the descending cylindrical body 30 get over and descend, and are opposed to each other. , 10 are provided for the liquid paper container.

In the stopper for the liquid paper container according to the first and second aspects of the present invention, the descending cylindrical body 30 fitted to the inner surface side of the stopper main body 40 is obtained by rotating the screw-type cap 20. For the liquid paper container, the film 60 that is lowered and breaks and opens the breakable film 60 with the saw blades c 1, c 2, c 3,. 1 and 2, the inclined convex cams b 1 and b 2 of the descending cylinder 30 descend over the outer surface of the lower cylindrical body 21 of the screw-type cap 20 as shown in FIGS. By providing the opposing opening feeling imparting projections 10, 10,
When a customer purchases juice, liquor, sake, etc. contained in a liquid paper container 50 and opens and opens the screw-type cap 20 for the first time, as shown in FIG. 3B, it rotates horizontally. The opposing inclined convex cams a 1, a of the push-down cylindrical body 21 and the opposing inclined convex cams b 1, b of the descending cylindrical body 30 are fitted to the inner surface side of the plug body 40 by sliding. In addition to the slight resistance (open feeling) described above, the descending cylindrical body 30 descends and breaks and opens the breakable film 60 with the saw blades c 1, c 2, c 3,. Relative to the lowering cylindrical body 30 that slides and descends the opposing opening feeling imparting projections 10, 10 that similarly rotate in the horizontal direction, provided on the outer surface side of the lower part of the cylindrical body 21 of the screw-type cap 20. The inclined convex cams b and b get over In addition, because there is a clear resistance, and because it makes a clicking sound when getting over, the first clear opening feeling that is clearly different from the second opening when there is almost no resistance mentioned above, Customer can recognize.

  In addition, the stopper for the liquid paper container according to claim 3 of the present invention is the stopper for the liquid paper container according to claim 1 or 2, as shown in FIGS. In addition, a pair of vertical cuts obtained by cutting the push-down cylindrical body 21 on the left and right sides of the opposing opening feeling imparting projections 10, 10 provided on the outer surface side of the lower part of the push-down cylindrical body 21 of the screw-type cap 20. A stopper for a liquid paper container provided with grooves 11 and 11.

In the stopper for the liquid paper container according to claim 3 of the present invention, on the outer surface side of the lower part of the push-down cylindrical body 21 of the screw-type cap 20 according to claim 1 or 2 described above, Liquid paper that allows the customer to recognize the first clear opening feeling by providing the opposing opening feeling imparting protrusions 10 and 10 that the inclined convex cams b 1 and b of the descending cylindrical body 30 descend and ride over. In the container cap, the lowering cylinder 21 is cut to the left and right of the opposing opening feeling imparting projections 10 and 10 provided on the outer surface side of the lowering cylinder 21 of the screw-type cap 20. By providing a pair of vertical kerfs 11, 11,
Between the pair of vertical grooving grooves 11, 11 provided on the left and right sides of the opening-feeling projections 10, 10 at the lower part of the push-down cylinder 21 of the screw-type cap 20, respectively. Elasticity can be imparted to the opposing opening feeling imparting projections 10, 10 provided on the outer surface side. Similarly, the customer purchases juice, Western liquor, Japanese sake, etc. contained in the liquid paper container 50. Then, when the screw-type cap 20 is rotated for the first time to be opened and opened, the opposite opening feeling imparting projections 10 and 10 which are similarly rotated in the horizontal direction are slid and lowered. When the opposed inclined convex cams b 1, 2 b of the descending cylindrical body 30 make a clicking sound, especially when they get over, it is clearly different from the above-described second opening when there is almost no resistance. , The clearer opening feeling of the first time The customer can be recognized.

As described above, in the stopper for a liquid paper container according to the present invention, as shown in FIG. 1 and FIG. Since the inclined convex cams b 1, b of the descending cylindrical body 30 descend on the outer surface side of the lower part of the push-down cylindrical body 21 of the cap 20, the opposing opening feeling imparting projections 10, 10 are added. Opposite opening feeling imparting projections 10 provided on the outer surface side of the lower cylindrical body 21 of the screw-type cap 20.
, 10 are provided with a pair of vertical kerfs 11, 11, which are formed by cutting down the cylindrical body 21, respectively.
It is installed in the upper opening f of a liquid paper container 50 made of a paper laminate material, which has a flat top surface or a gable roof shape, and contains a juice having a rich fragrance, Western liquor, Japanese sake, etc. By rotating the cap 20, the film 60 that can be broken is broken and opened by the saw blades c 1, c 2, c 3,. A liquid paper container cap that allows customers to recognize a clear opening feeling for the first time. A liquid paper container 50 containing purchased juice, liquor or sake is purchased for mischief or fraud. It is possible to provide a spigot for a liquid paper container that does not cause fear that it has been previously opened and opened.

  In the stopper for the liquid paper container of the present invention, the inclined convex cams b 1, b of the descending cylindrical body 30 provided on the outer surface side of the lower part of the pushing down cylindrical body 21 of the screw-type cap 20 get over and descend, As for the opposing unsealing feeling imparting projections 10 and 10, the opposed inclined convex cams provided on the outer surface side of the push-down cylindrical body 21 continuously provided on the inner surface of the top plate of the screw type cap 20 shown in FIG. 4B. 1 and FIG. 2, the opening feeling imparting projections 10, 10 having a height (wall thickness) of about a half of a, a and a height, width, and height of about 0.6 × 2.4 × 0.3 mm are opposed to each other. As shown in FIG. 2, the cylindrical body 21 of the screw-type cap 20 can be provided on the outer surface side of the lower portion near the center of the left and right of the inclined surfaces of the inclined cams a, a facing each other.

  In the mouthpiece for the liquid paper container of the present invention, the push-down provided on the left and right of the opposing opening feeling imparting projections 10, 10 provided on the outer surface side of the lower cylindrical body 21 of the screw-type cap 20. The pair of vertical grooves 11 and 11 cut from the cylindrical body 21 has a vertical and horizontal width of about 3.0 × 0.6 mm, respectively, and an interval of 3.6 mm. As shown in FIGS. 1A, 1B, 2A, 2B, a pair of vertical kerfs 11 and 11 are provided on the outer surface side of the lower part of the push-down cylindrical body 21 of the screw-type cap 20. It can be provided on the left and right of the unsealing feeling imparting projections 10 and 10.

In addition, a pair of vertical cylinders 21 in which the pressing cylinders 21 are cut on the left and right sides of the above-mentioned opening feeling imparting projections 10 and 10 each having a vertical, horizontal, and height of about 0.6 × 2.4 × 0.3 mm. Kerf 11
1, 11, 11 at the time of injection molding of the screw-type cap 20 provided with the depressed cylindrical body 21 shown in FIGS. 1A 1, 2 B, 2 A, 2 B, Unreasonable removal from the mold can be facilitated.

  1A and 1B are a cut-away side view and a cut-away bottom view of a screw-type cap 20 connected to a push-down cylindrical body 21 of a stopper for a liquid paper container in Embodiment 1 of the present invention. 1C is a cross-sectional view of a stopper for a liquid paper container.

  3A is a cross-sectional view of a conventional stopper for a liquid paper container, and FIGS. 3B and 3C are cross-sectional views showing a state in which the stopper for a conventional liquid paper container is opened and opened. 4A is a broken bottom view of a conventional liquid paper container stopper, and FIGS. 4B, 4C, and 4D are continuous connection of a push-down cylinder 21 of a conventional liquid paper container stopper. FIGS. 4E and 4F are side views of the screw-type cap 20, the descending cylindrical body 30, and the screw-type cap body 40. FIGS. FIG. 3 is a perspective view of a flat or gable roof liquid paper container 50.

  That is, a conventional cylindrical body 21 having an outer diameter of 12 mm provided with inclined convex cams a, a facing the outer surface side is connected to the inner surface of the top plate, and has a conventional outer diameter of 24 mm and a height of 16 mm shown in FIG. 4B. In the screw-type cap 20, the descending cylinder 30 is disposed on the outer surface side of the lower portion of the depressed cylindrical body 21 of the screw-type cap 20 near the center of the inclined surfaces of the opposed inclined convex cams a, a. Inclined convex cams b 1, 2 b go over and descend, and are provided with opposite opening feeling imparting projections 10, 10 of 0.6 × 2.4 × 0.3 mm in length, width and height, and screw type The vertical and horizontal widths obtained by cutting the pressing cylinder 21 are 3.0 × 0 on the left and right sides of the opposing opening-providing projections 10, 10 provided on the outer surface of the lower portion of the pressing cylinder 21 of the cap 20. 1. A pair of vertical kerfs 11, 11 having a distance of 3.6 mm and a distance of 3.6 mm are provided, FIG. The pressing cylinder 21 screw-on cap 20 which is provided continuously to the first embodiment shown in B, was prepared by injection molding method using the conventional manner of ordinary polyethylene resin.

Also, the inclined convex cams b, b facing the inner surface side and a plurality of saw blades c, c, c,... A conventional cylinder 16 having a lower outer diameter of 16 mm (inner diameter of 14 mm) and a height of 14 mm, a fusion flange d provided at the bottom, and a conventional inner diameter of 18 mm (outer diameter of 21 mm) and a height of 18 mm shown in FIG. The screw-type plug body 40 was produced by the same injection molding method using the same polyethylene resin as that of the prior art.

  Next, the conventional lowering cylinder 30 with an outer diameter of 16 mm shown in FIG. 4C and the conventional screw-type plug body 40 with an inner diameter of 18 mm shown in FIG. The eight vertical protrusions h 1, h 2, h 2,... Between the upper and lower annular protrusions g 1, g 2 on the inner surface side, and the upper four fitting protrusions i 1, i 2, 3 on the outer surface side of the descending cylinder 30. The outer surface side of the descending cylindrical body 30 is fitted to the inner surface side of the screw-type plug body 40 so that i and i are fitted and move up and down (down). A screw-type cap 20 in which a push-down cylindrical body 21 according to the first embodiment shown in FIGS. 1A and 1B is continuously connected to the inner surface side of the descending cylindrical body 30 is rotated to the right and screwed into the screw cap 20. A cap for the liquid paper container of Example 1 shown in FIG. 1C, comprising a cap 20 of a type, a descending cylindrical body 30, and a screw-type cap body 40.

1C, the mouthpiece for the liquid paper container comprising the screw-type cap 20, the descending cylindrical body 30 and the screw-type mouthpiece main body 40 of Example 1 shown in FIG. Various barriers of the liquid paper container 50 made of a paper laminate material having a gable roof shape of 85 × 85 × 275 mm in height, width, and height of the normal storage portion shown in FIG. 4F. As shown in FIGS. 1C and 3A, the fusion flange of the screw-type cap body 40 is formed on the upper surface around the upper opening f sealed with a breakable film 60 made of an aluminum foil laminate material having excellent properties. The lower surface of d is heat-fused via a fusion donut plate 61 having excellent heat-fusibility (by simultaneously fusing the breakable film 60 and the end of the fusion donut plate 61). When I did
Similar to the conventional stopper for liquid paper container shown in FIGS. 3 and 4, the screw-type cap 20 is only half-turned to the left in the opening direction, and as shown in FIG. The opposing inclined convex cams a 1, a of the rotating push-down cylindrical body 21 and the opposing inclined convex cams b 2, b of the descending cylindrical body 30 are fitted to the inner surface side of the plug body 40 by sliding. 3 (see FIG. 4A), the descending cylinder 30 is lowered, and the breakable film 60 is broken and opened by the saw blades c 1, c 2, c 3,. As described above, it was possible to obtain a mouthpiece for a liquid paper container that can be easily removed by removing the screw-type cap 20 and that has an excellent scent retention effect.

  FIGS. 2A and 2B are a cutaway side view and a cutaway bottom view of a screw-type cap 20 connected to a push-down cylindrical body 21 of a stopper for a liquid paper container in Embodiment 2 of the present invention. 2C is a cross-sectional view of a plug for a liquid paper container.

That is, the same as in the first embodiment shown in FIGS. 1A and 1B described above, the screw-type cylindrical body 21 provided with the inclined convex cams a and a opposed to the outer surface is provided on the inner surface of the top plate. In the cap 20, the inclined convex cams b 1 and b 2 of the descending cylinder 30 descend over the outer surface of the lower part of the push-down cylinder 21 of the screw-type cap 20 and are opposed to each other. In addition, a pair of cut-down cylinders 21 cut at the left and right of the opposing opening-feeling projections 10, 10 provided on the outer surface side of the lower-down cylinder 21 of the screw-type cap 20. 2A and 2B, a screw-type cap 20 provided continuously with the depressed cylindrical body 21 of the second embodiment shown in FIGS. 2A and 2B, and inclined convex cams b 1 and b 2 facing the inner surface side. And a number of saw blades c 1, c 2, c at the lower end
,..., And the above-described conventional screw-type mouth, which is fitted to the inner surface side of the plug body 40 and descends, and the above-described conventional descending cylindrical body 30 and the fusion flange d provided at the lower part. The stopper body 40 was produced by an injection molding method using a normal polyethylene resin similar to the conventional one.

Next, the above-described conventional descending cylindrical body 30 and the above-described conventional screw-type plug body 40 are connected to the upper and lower annular projections g 1, g 2 on the inner surface side of the plug body 40 in the same manner as in the first embodiment. , And the four vertical protrusions h 1, h 2, h 3,. The outer surface side of the descending cylindrical body 30 is fitted to the inner surface side of the screw-type stopper body 40 so that the outer surface side of the stopper body 40 and the inner surface side of the descending cylinder body 30 are 2A
, B, the screw-type cap 20 provided with the pressed-down cylindrical body 21 according to the second embodiment is connected to the screw-type cap body 40 by rotating it to the right. As shown in FIG. 2C, a screw-type cap 20 is sealed with a breakable film 60 made of an aluminum foil laminated material having various barrier properties (heat-sealed to the lower surface of the fusion flange d). A stopper for the liquid paper container of Example 2 shown in FIG. 2C, comprising the descending cylindrical body 30 and the screw-type stopper body 40, was produced.

2C, the stopper for the liquid paper container comprising the screw-type cap 20, the descending cylindrical body 30, and the screw-type stopper main body 40 of the second embodiment shown in FIG. As shown in FIG. 2C, a screw-type cap is formed on the lower surface of the upper opening f that is not sealed with the breakable film 60 of the liquid paper container 50 made of a paper laminate material having a gable roof shape. When the upper surface of the fusion flange d of the main body 40 is inserted by heat fusion (inserted from the inner surface side of the upper opening f),
Similar to the cap for the liquid paper container of the first embodiment, the descending cylindrical body 30 fitted to the inner surface side of the cap body 40 is lowered only by half-turning the screw-type cap 20 leftward in the opening direction. The lower end opening of the screw-type plug body 40 is sealed with the saw blades c 1, c 2, c 3,... Of the descending cylinder 30, and can be made of aluminum foil laminated material having various barrier properties. It was possible to obtain a stopper for a liquid paper container excellent in the effect of retaining a rich fragrance, which can be opened by breaking the film 60.

In the stopper for the liquid paper container according to the first and second embodiments of the present invention, the descending cylindrical body 30 fitted to the inner surface side of the stopper main body 40 is obtained by simply rotating the screw-type cap 20 to the left. In the stopper for the liquid paper container that is lowered and opened by breaking the film 60 that can be broken by the saw blades c 1, c 2, c 3,. The inclined convex cams b 1, b of the descending cylinder 30 descend over the lower outer surface near the center of the left and right sides of the inclined surfaces of the opposing inclined convex cams a 1, a 2 Relative opening feeling imparting projections 10 and 10 having a diameter of 0.6 × 2.4 × 0.3 mm are provided, and in addition, a relative position provided on the outer surface side of the lower part of the push-down cylindrical body 21 of the screw-type cap 20. The vertical and horizontal widths obtained by cutting the pressed cylinder 21 are 3.0 on the left and right of the unsealing feeling imparting projections 10 and 10, respectively. By providing a pair of vertical kerfs 11, 11 having a size of 0.6 mm and a distance of 3.6 mm,
When a customer purchases 2000 ml of sake contained in a liquid paper container 50 and opens and opens the screw-type cap 20 halfway to the left in the opening direction, the push-down cylinder rotates halfway horizontally. The descending cylindrical body fitted to the inner surface side of the plug body 40 by sliding the opposing inclined convex cams a, a of the body 21 and the opposing inclined convex cams b, b of the descending cylindrical body 30 respectively. 30 is lowered, and the opposite opening feeling imparting projections 10 and 10 which are provided on the outer surface side of the lower part of the cylindrical body 21 of the screw type cap 20 and which are also half-rotated in the horizontal direction are respectively slid and lowered. There is almost no resistance because the opposing inclined convex cams b 1, 2 b of the descending cylindrical body 30 have a clear resistance when they get over and because they make a clicking sound when they get over 2 When opening the second time Was able to obtain a mouthpiece for a liquid paper container that the customer can recognize the clear opening feeling of the first time clearly different.

  nothing special.

1A and 1B in the first embodiment of the present invention are a cut-away side view and a cut-away bottom view of a screw-type cap 20 connected to a push-down cylindrical body 21 of a cap for a liquid paper container. 1C is a cross-sectional view of a stopper for a liquid paper container. FIGS. 2A and 2B in a second embodiment of the present invention are a cutaway side view and a cutaway bottom view of a screw-type cap 20 connected to a push-down cylindrical body 21 of a plug for a liquid paper container. 2C is a cross-sectional view of a plug for a liquid paper container. 3A is a cross-sectional view of a conventional stopper for a liquid paper container, and FIGS. 3B and 3C are cross-sectional views showing a state in which the stopper for a conventional liquid paper container is opened and opened. 4A is a broken bottom view of a conventional stopper for a liquid paper container, and FIGS. 4B, 4C, and 4D are screws connected to a push-down cylindrical body 21 of the stopper for a conventional liquid paper container. FIGS. 4E and 4F are side views of the cap 20, the descending cylindrical body 30, and the screw-type cap body 40, and FIG. 4E and FIG. It is a perspective view of the liquid paper container 50 of a roof shape.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Opening feeling provision | protrusion 11 ... Vertical kerf 20 ... Screw-type cap 21 ... Depressed cylinder 30 ... Descent cylinder 40 ... Plug body 50 ... Liquid paper container 60 ... Breakable film 61 ... Fusion donut Plate a, b ... Inclined convex cam c ... Saw blade d ... Fusing flange f ... Upper opening g ... Annular protrusion h ... Vertical protrusion i ... Fitting protrusion

Claims (3)

A push-down cylindrical body 21 provided with inclined convex cams a 1, a facing the outer surface side, a screw-type cap 20 connected to the inner surface of the top plate, and inclined convex cams b 1, b facing the inner surface side, A plurality of saw blades c 1, c 2, c 3,... Provided at the lower end, a descending cylindrical body 30 that is fitted and lowered on the inner surface side of the plug body 40, and a screw type provided with a fusion flange d at the bottom. A mouthpiece for a liquid paper container comprising a mouthpiece body 40 and sealed with a breakable film 60 of a liquid paper container 50 made of a paper laminate material having a flat top surface or a gable roof shape. After the lower surface of the fusion flange d of the screw-type plug body 40 is heat-sealed and attached to the upper surface around the stopped upper opening f, the screw-type cap 20 is rotated to rotate the plug body. The descending cylindrical body 30 fitted to the inner surface side of 40 descends and breaks at the saw blades c 1, c 2, c 3,. In a plug for a liquid paper container that breaks and opens a possible film 60,
On the outer surface side of the lower part of the push-down cylindrical body 21 of the screw-type cap 20, the inclined convex cams b, b of the descending cylindrical body 30 are provided so as to be opposed and lowered to provide the unsealing feeling imparting projections 10, 10. A mouthpiece for liquid paper containers. A push-down cylindrical body 21 provided with inclined convex cams a 1, a facing the outer surface side, a screw-type cap 20 connected to the inner surface of the top plate, and inclined convex cams b 1, b facing the inner surface side, A plurality of saw blades c 1, c 2, c 2,... Provided at the lower end, a descending cylindrical body 30 that fits and falls on the inner surface side of the plug body 40, and a fusion flange d is provided at the lower portion to provide a lower end opening. A screw-type cap main body 40 sealed with a breakable film 60, and a cap for a liquid paper container, which has a flat upper surface or a gable roof, and is made of a paper laminated material or the like After the upper surface of the fusion flange d of the screw-type cap body 40 is heat-sealed and attached to the lower surface around the upper opening f of the liquid paper container 50, the screw-type cap 20 is rotated to rotate the mouth. The descending cylindrical body 30 fitted to the inner surface side of the stopper body 40 is lowered, and the saw blades c 1, c 2, c 3, 4 of the descending cylindrical body 30 are lowered. In a plug for a liquid paper container that breaks and opens the breakable film 60,
On the outer surface side of the lower part of the push-down cylindrical body 21 of the screw-type cap 20, the inclined convex cams b, b of the descending cylindrical body 30 are provided so as to be opposed and lowered to provide the unsealing feeling imparting projections 10, 10. A mouthpiece for liquid paper containers. In the stopper for liquid paper containers according to claim 1 or claim 2,
A pair of vertical kerfs 11 formed by cutting the push-down cylindrical body 21 on the left and right sides of the opposing opening feeling imparting projections 10, 10 provided on the outer surface side of the lower part of the push-down cylindrical body 21 of the screw-type cap 20.
, 11 is provided. Cap for liquid paper container.

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