JPH10139057A - Spout tap with built-in opening blade - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To disassemble a used liquid paper container and separate and collect it, use a spout plug with a built-in unsealing blade that is not likely to injure your hand with the spout blade. provide. A spiral descending guide slope 232 having an upper outer peripheral surface projecting outward on a lower surface of a top plate 210 of a cap 200;
A spiral ascending guide slope 233 having a lower outer peripheral surface protruding outward; and a lower end of the ascending guide slope formed at a position lower than the lower end of the descending guide slope with the same inclination to the corresponding outer peripheral surface. The inner cylinder 230 is installed vertically, and the spout 100
0 A plurality of vertical grooves 122 are formed on the inner surface, a plurality of projections 131 sliding on the vertical grooves are formed on the outer peripheral surface at the upper end, and an opening blade 132 is formed at the lower end, and slidably contact with the descending guide slope of the guide inner cylinder. Spiral descending guide slope 13 whose inner peripheral surface on the lower side protrudes inward
4 and a spiral ascending guide slope 135 in which the upper inner peripheral surface that slides on the ascending guide slope of the guide inner cylinder projects inward.
Are slidably inserted into the opening cylindrical body 130 formed on the inner peripheral surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to sake, fruit juice beverages,
The present invention relates to a spout plug having a built-in opening blade protruding from the top of a liquid paper container used for seasonings, oils, liquid detergents, and the like.

[0002]

2. Description of the Related Art Conventionally, a liquid paper container (20) has a square body as shown in FIG. 13, for example, and a gable roof-shaped top inclined plate (21) is easy to pour out. Therefore, the one in which the spout plug (10) is protruded has been widely used. This spout plug is a spout (100) (spout tool)
And a cap having a built-in opening blade in the spout plug is, for example, Japanese Utility Model Publication No. 5-3505.
No. 8 discloses the technique. A spout plug containing the opening blade is attached to a spout hole of a liquid paper container sealed with a breakable film, and has a cylindrical portion corresponding to the spout hole. A cylindrical opening blade inserted into the cylindrical portion and having a blade portion at the lower edge, and a cap attached so as to cover the cylindrical portion, the inner surface of the cylindrical portion and the outer surface of the opening blade opposed thereto Both are provided with anti-rotation means capable of sliding in contact with each other and moving in the vertical direction, and the opening blade is provided so as to be vertically movable with respect to the cylindrical portion.
The tubular wall portion of the opening blade has a slope inclined upward from the upper edge toward the lower edge side and facing upward, and the cap has a tubular body facing downward and having a guide slope slidably in contact with the slope of the opening blade. The opening blade is provided so that it can descend when the cap rotates.
At the time of discharging the contents, as shown in FIG.
00), the opening blade (132) was lowered by the rotation of the cap to break the film (30) to be sealed, and the container was opened.

[0003]

However, recently, from the standpoint of environmental protection and resource saving, it has been required to separate and collect used containers and packages to recycle them. However, as shown in FIG. 13, the liquid paper container (20) to which the above-described conventional spout plug having a built-in spout blade is attached has the spout blade (132) of the spout plug (10) protruding inside the container. If the container is left as it is, there is a concern that the hand may be easily injured when the container is disassembled and separated and collected.

The present invention solves the above-mentioned problem of the conventional spout plug having a built-in opening blade. When the used liquid paper container is disassembled and separated and collected, the opening blade of the spout plug is opened. It is intended to provide a spout with a built-in opening blade which does not cause any risk of injury to hands and the like, and which does not cause the fragments of the sealing film to fall into the container.

[0005]

Means for Solving the Problems A first invention of the present invention is:
As shown in FIG. 1, a spout (100) having a built-in opening blade (132) is provided in a discharge hole of a liquid paper container (20) sealed with a breakable sealing film (30). In the spout plug (10) including the cap (200), on the lower surface of the top plate (210) of the cap (200),
A spiral descending guide slope (232) having an upper outer peripheral surface projecting outward and a spiral rising guide slope (233) having a lower outer peripheral surface projecting outward are formed on corresponding outer peripheral surfaces. A guide inner cylinder (230) having the same inclination and having the lower end of the ascending guide slope (233) formed below the lower end of the descending guide slope (232) is vertically provided, and the spout (100) is provided. A plurality of vertical grooves (122) are formed on the inner surface of the pouring cylinder (120), a plurality of protrusions (131) sliding on the vertical grooves are provided on the outer peripheral surface at the upper end, and the opening blade (13) is provided at the lower end.
2), a spiral descending guide slope (134) having a lower inner peripheral surface that slides in contact with the descending guide slope (232) of the guide inner cylinder (230) and protrudes inward; Opening tubular body formed on the inner peripheral surface with a spiral ascending guide inclined surface (135) whose upper inner peripheral surface that slides in contact with the ascending guide inclined surface (233) of the inner tube (230) slides inward. (1
In the process of inserting the cap (200) slidably and removing the cap (200) attached to the spout (100), the sealing blade is opened by the opening blade (132) at the end of the opening tubular body (130). When the stopper film (30) is broken and the cap (200) is removed, the opening cylinder (130) is housed in the cap (200) and separated from the spout (100). A spout plug (10) having a built-in unsealing blade.

According to a second aspect of the present invention, as shown in FIG. 2, an opening is provided to project from a discharge hole of a liquid paper container (20) sealed with a breakable sealing film (30). Blade (13
2) Built-in spout (100) and cap (20)
0), a plurality of vertical grooves (1) are formed in the inner surface (120) of the spout cylinder of the spout (100).
22), and a plurality of protrusions (13) sliding in the vertical groove.
1) is formed on the outer peripheral surface at the upper end, an opening blade (132) is formed at the lower end, and a spiral descending guide slope (134) in which the lower inner peripheral surface protrudes inward, and the upper inner peripheral surface is A spiral ascending guide slope (135) protruding inward is provided on the corresponding inner peripheral surface at the same inclination and the ascending guide slope (13).
An opening tubular body (130) formed with the upper end of 5) above the upper end of the descending guide slope (134) is slidably inserted thereinto, and is attached to the lower surface of the top plate (210) of the cap (200). , The lowering guide slope (13) of the opening cylinder (130).
(4) a spiral descending guide slope (232) having an outer peripheral surface on the upper side in sliding contact with the outer projection surface (232);
0) A spiral ascending guide slope (23) in which the lower outer peripheral surface that slides on the ascending guide slope (135) protrudes outward.
In the process of suspending the cap (200) attached to the spout (100) by vertically suspending the guide inner cylinder (230) formed on the outer peripheral surface of (3) and (4), the lowering of the unsealing cylinder (130). When the sealing film (30) is broken by the opening blade (132) at the tip and the cap (200) is removed, the opening cylinder (130) is housed in the cap (200) and the spout (10
A spout (10) having a built-in opening blade, which is separated from 0).

According to a third aspect of the present invention, as shown in FIG. 1, an opening blade (132) protruding from a discharge hole of a liquid paper container (20) provided with a breakable sealing film (30). ), And a spout (10) comprising a spout (100) incorporating a cap and a cap (200).
On the lower surface of the top plate (210) of (0), a spiral descending guide slope (232) having an upper outer peripheral surface projecting outward, and a spiral rising guide slope having a lower outer peripheral surface projecting outward. (2
33) having the same inclination as the corresponding outer peripheral surface, and a lower end of the ascending guide slope (233) formed at a position lower than a lower end of the ascending guide slope (232). And a plurality of vertical grooves (122) are formed on the inner surface of the spout cylinder (120) of the spout (100), and a plurality of projections (131) sliding in the vertical grooves are provided on the outer peripheral surface at the upper end. An opening blade (132) is formed at the lower end, and a crosspiece (136) at the center of which a hooking pin (137) protrudes downward is provided on the inner lower side, and a descending guide slope of the guide inner cylinder (230) ( 232), and a spiral descending guide slope (134) in which the lower inner peripheral surface that slides in contact with the inner guide surface (134), and an upper side that slides in contact with the ascending guide slope (233) of the guide inner cylinder (230). A spiral ascending guide slope (135) whose inner peripheral surface protrudes inward. Opening accommodating cylinder formed in the peripheral surface (13
0) is slidably inserted, and in the process of removing the cap (200) attached to the spout (100), the sealing is carried out with the opening blade (132) at the tip of the lowering opening cylinder (130). When the stopper film (30) is broken, the broken piece (31) is hooked with the hook pin (137), and when the cap (200) is removed, the opening cylinder (130) is attached to the cap (200). A spout (10) having a built-in opening blade, wherein the spout (100) is housed therein and separated from the spout (100).

According to a fourth aspect of the present invention, as shown in FIG. 2, an opening is provided to project from a discharge hole of a liquid paper container (20) sealed with a breakable sealing film (30). Blade (13
2) Built-in spout (100) and cap (20)
0), a plurality of vertical grooves (1) are formed on the inner surface of the spout cylinder (120) of the spout (100).
22), and a plurality of protrusions (13) sliding in the vertical groove.
1) is provided on the outer peripheral surface at the upper end, an opening blade (132) is formed at the lower end, and a bar (136) at the center of which a hooking pin (137) protrudes downward is provided on the inner lower side. A spiral descending guide slope (134) whose surface protrudes inward and a spiral ascending guide slope (135) whose upper inner peripheral surface protrudes inward are co-inclined with the corresponding inner peripheral surface. And
An opening tubular body (130) having the upper end of the ascending guide slope (135) formed at a position higher than the upper end of the descending guide slope (134) is slidably inserted thereinto, and the cap (20) is inserted.
0) on the lower surface of the top plate (210).
0) A spiral descending guide slope (23) whose upper outer peripheral surface that slides on the descending guide slope (134) protrudes outward.
2) and an ascending guide slope (1) of the open envelope (130).
45), a guide inner cylinder (230) formed on the outer peripheral surface of a spiral ascending guide slope (233) having a lower outer peripheral surface protruding outwardly in sliding contact with the spout (10).
In the process of removing the cap (200) attached to the opening film (0), the sealing film (30) is broken by the opening blade (132) at the tip of the lowering opening cylinder (130). ) Is hooked by the hook pin (137), and when the cap (200) is removed, the opening cylinder (130) is attached to the cap (20).
A spout (10) containing an opening blade, which is housed in 0) and separated from said spout (100).
It is.

According to a fifth aspect of the present invention, as shown in FIG. 6, an opening is provided so as to protrude from a discharge hole of a liquid paper container (20) sealed with a breakable sealing film (30). Blade (13
2) Built-in spout (100) and cap (20)
0), a spiral descending guide slope (232) having an upper outer peripheral surface projecting outward on the lower surface of the top plate (210) of the cap (200).
And a spiral ascending guide slope (233) whose outer peripheral surface on the lower side protrudes outward with the same inclination to the corresponding outer peripheral surface,
In addition, a guide inner cylinder (230) having the lower end of the ascending guide slope (233) formed at a position lower than the lower end of the descending guide slope (232) is provided vertically, and the spout (10) is provided.
A plurality of vertical grooves (122) are formed on the inner surface of the injection cylinder (120) of (0), and a protection ring (140) having a plurality of protrusions (141) sliding on the vertical grooves on the outer peripheral surface at the upper end is inserted. Above the protective ring, the vertical groove (122) is formed in the upper end surface of the outer periphery.
A plurality of projections (131) are provided for sliding, and an opening blade (132) having a notched blade portion (133) at the lower end is formed. The lowering guide slope (232) of the guide inner cylinder (230) is provided. A spiral descending guide slope (134) in which the lower inner peripheral surface in sliding contact protrudes inward, and the guide inner cylinder (230)
A spiral ascending guide slope (135), whose upper inner peripheral surface that slides in contact with the ascending guide slope (233) protrudes inward, is formed on the inner peripheral surface, and the upper diameter is larger than the lower diameter. In the process of slidably inserting an opening cylinder (130) having a two-stage outer periphery and removing the cap (200) attached to the spout (100), the opening cylinder (130) descending. When the sealing film (30) is broken by the opening blade (132) at the tip of the above, the protection ring (140) is projected into the container by the step (138) on the outer periphery, and the cap (200) is removed. The spout (10) having a built-in opening blade, wherein the opening cylinder (130) is housed in the cap (200) and separated from the spout (100).

According to a sixth aspect of the present invention, as shown in FIG. 7, an opening is provided to protrude from a discharge hole of a liquid paper container (20) sealed with a breakable sealing film (30). Blade (13
2) Built-in spout (100) and cap (20)
0), a plurality of vertical grooves (1) are formed on the inner surface of the spout cylinder (120) of the spout (100).
22), and a plurality of protrusions (14) sliding in the vertical grooves.
A protection ring (140) having 1) on an upper end outer peripheral surface is inserted, and a plurality of projections (131) sliding on the vertical groove (122) are provided on the outer peripheral upper end surface above the protective ring. An opening blade (132) provided with a notched blade portion (133) is formed on the lower surface, and a spiral descending guide slope (134) having a lower inner peripheral surface projecting inward, and an upper inner peripheral surface having an inner peripheral surface facing inward. A spiral ascending guide slope (135) protruding from the ascending guide slope (13) with the same inclination on the corresponding inner peripheral surface.
An opening tubular body (130) formed with the upper end of 5) above the upper end of the descending guide slope (134) is slidably inserted thereinto, and is attached to the lower surface of the top plate (210) of the cap (200). , The lowering guide slope (13) of the opening cylinder (130).
(4) a spiral descending guide slope (232) having an outer peripheral surface on the upper side in sliding contact with the outer projection surface (232);
0) A spiral ascending guide slope (23) in which the lower outer peripheral surface that slides on the ascending guide slope (135) protrudes outward.
In the process of suspending the cap (200) attached to the spout (100) by vertically suspending the guide inner cylinder (230) formed on the outer peripheral surface of (3) and (4), the lowering of the unsealing cylinder (130). When the sealing film (30) is broken by the opening blade (132) at the tip, the protection ring (140) is projected into the container by the step (138) on the outer periphery, and when the cap (200) is removed, A spout (10) having a built-in opening blade, wherein an opening cylinder (130) is housed in the cap (200) and separated from the spout (100).

A spout having a built-in opening blade according to the present invention comprises a guide inner cylinder vertically extending from a top plate of a cap, a spiral descending guide slope having an upper outer peripheral surface projecting outward, A spiral ascending guide slope whose outer peripheral surface protrudes outward is formed at the lower end of the ascending guide slope below the lower end of the descending guide slope, and is provided on the corresponding outer peripheral surface at the same inclination. On the other hand, the opening tubular body slidably inserted into the spout has a spiral inner shape in which the lower inner peripheral surface that slides in contact with the descending guide slope of the inner guide tube of the cap projects inward. A descending guide slope and a spiral ascending guide slope in which an upper inner peripheral surface which slides on the ascending guide slope of the guide inner cylinder of the cap projects inward are formed on the inner peripheral surface. For this reason, when the cap attached to the spout is rotated in a direction to remove the cap, the lowering guide slope of the guide inner cylinder of the cap and the lowering guide slope of the opening cylindrical body slide, and the opening cylindrical body is moved. Move down. When the opening cylinder reaches the lowermost position, the lower end of the ascending guide slope of the inner guide cylinder of the cap slides with the upper end of the ascending guide slope of the opening cylinder to open the cap. When the cylinder starts moving upward and the cap is removed from the spout, an opening cylinder forming an opening blade at the lower end is housed in the cap and separated from the spout.

Alternatively, a spiral lowering guide slope having a lower inner peripheral surface protruding inward and an upper inner peripheral surface facing inward on an opening tubular body slidably inserted into the spout. A projecting spiral ascending guide slope, the upper end of the ascending guide slope being formed at a position above the upper end of the descending guide slope, and provided on the corresponding inner peripheral surface at the same inclination, while the cap The guide inner cylinder that is vertically suspended from the top plate has a spiral descending guide slope whose upper outer peripheral surface that slides in contact with the descending guide slope of the opening tubular body protrudes outward, and the rising of the opening tubular body. A spiral ascending guide slope is formed on the outer circumferential surface, and a lower guide surface that slides on the lower guide surface and protrudes outward. For this reason, when the cap attached to the spout is rotated in a direction to remove the cap, the lowering guide slope of the guide inner cylinder of the cap and the lowering guide slope of the opening cylindrical body slide, and the opening cylindrical body is moved. Move down. When the opening cylinder reaches the lowermost position, the upper end of the ascending guide slope of the opening cylinder slides with the lower end of the ascending guide slope of the inner guide cylinder of the cap for opening. When the cylinder starts moving upward and the cap is removed from the spout, an opening cylinder forming an opening blade at the lower end is housed in the cap and separated from the spout.

In the case where the opening blade formed at the lower end of the opening cylinder does not have a chipped portion, a bar is provided below the inside of the opening cylinder and hooked from the center of the bar. The pin protrudes downward. When the cap attached to the spout is rotated in the removing direction, the opening tubular body moves downward, first, the tip of the hook pin pierces the sealing film, and then the sealing film is broken by the opening blade. . For this reason, the broken piece of the sealing film is hooked and held on the tip of the hook pin, and when the cap is removed from the spout, the broken piece of the sealing film is also stored in the cap together with the opening cylinder. Therefore, broken fragments do not fall into the container.

In the case where the opening blade formed at the lower end of the opening cylindrical body is provided with a notched blade portion, a protective ring is first slidably inserted into the inner surface of the spout pouring cylinder. Above this protective ring, the upper diameter is larger than the lower diameter.
An opening tubular body having a step outer periphery is slidably inserted. Then, when the cap attached to the spout is rotated in a direction for removing the cap, the opening tubular body moves downward and the sealing film is broken by the opening blade formed at the lower end, and then the outer peripheral portion of the opening tubular body is opened. The upper end of the protection ring is pushed by the step, and the protection ring projects into the container. For this reason, the lower part of the opening cylinder slides the protection ring against the inner surface, and the broken edge of the sealing film does not rub, and the opening cylinder is rubbed at the uncut portion and hangs down. The fragments do not fall into the container.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a spout plug (10) having a built-in opening blade according to the present invention is a liquid paper container (20) sealed with a breakable sealing film (30). A spout (100) in which an opening blade (130) having a lower end with an opening blade (132) is slidably inserted, and a spout (130). And a cap (200) having a guide inner cylinder (230) that slides on the lower surface of the top plate (210). These constituent materials are produced by injection molding using a thermoplastic resin such as polyethylene or polypropylene. The spout is attached to the liquid paper container by, for example, heat-sealing the lower surface of the lower flange (110) of the spout to the upper surface of the top inclined plate of the container by an ultrasonic sealing method or the like.

First, in a spout plug having a built-in unsealing blade without a missing blade portion, a cap (200)
As shown in FIG. 1, a spiral inner guide (230) is provided on the lower surface of a top plate (210), and an upper outer circumferential surface projects outward on the outer circumferential surface of the guide inner cylinder. And a spiral ascending guide slope (233) whose outer peripheral surface on the lower side protrudes outward at the same angle, usually inclined leftward. The lower end of the ascending guide slope (233) is connected to the lowering guide slope (23).
It is formed below the lower end of 2). In addition,
On the inner surface of the peripheral wall (220) of the cap (200), a spiral screw portion (221) for screwing with the spout (100) is provided.

The spout (100) usually has 8 spouts on the inner surface of the spout cylinder (120) projecting from the flange (110).
Forming an opening blade (132) which has four projections (131) on the outer peripheral surface of the upper end and which does not have a cut-off portion at the lower end. A bar (136) is provided on the inner lower side, and the hook-shaped pin (137) is protruded from the center of the bar so that the arrow-shaped tip of the hook pin (137) is lower than the tip of the opening blade. , Guide inner cylinder (2
30) A spiral lowering guide slope (13) in which the lower inner peripheral surface that slides on the lowering guide slope (232) protrudes inward.
4) and an ascending guide slope (2) of the guide inner cylinder (230).
33). An opening tubular body (130) provided with a spiral ascending guide slope (135) in which an upper inner peripheral surface which comes into sliding contact with 33) protrudes inward is slidably inserted. It should be noted that a spiral screw portion (121) for screwing with the cap (200) is provided on the outer surface of the spout cylinder (120) of the spout (100).

When the cap (200) attached to the spout (100) is rotated counterclockwise to remove it, the opening cylinder (130) moves downward, as shown in FIG. The arrowhead-shaped tip of the pin (137) pierces the sealing film (30), and then, as shown in FIG. 4, the opening blade (132) breaks the sealing film (30), and the fragment (31) ) Is hooked and held on the arrowhead-shaped tip of the hook pin (137). Further, when the cap is rotated counterclockwise, the opening cylinder (130) moves upward, and when the cap is removed from the spout, as shown in FIG.
The opening cylindrical body (130) holding the cap is the cap (200).
Housed within.

Therefore, the opened liquid paper container is
As shown in 1, the opening blade of the opening cylinder does not protrude into the container, and when the used container is disassembled and separated and collected, the hand or the like is injured by the opening blade of the spout plug. There is no danger and there is no danger of broken pieces of the sealing film falling into the container.

As shown in FIG. 2, a spout (1) is used in a spout plug having a built-in opening blade without a missing blade portion.
00), the upper end of the spiral ascending guide slope (135) formed on the inner peripheral surface of the opening cylindrical body (130) and projecting inward from the upper peripheral surface, and the lower inner periphery The upper surface is formed above the upper end of the spiral descending guide slope (134) projecting inward, and is formed on the outer peripheral surface of the guide inner cylinder of the cap.
A spiral descending guide slope (232), whose upper outer peripheral surface that slides in contact with the descending guide slope (134) of the opening tubular body (130) projects outward, and an ascending guide of the opening tubular body (130). A spiral ascending guide slope (233) may be formed in which a lower outer peripheral surface that is in sliding contact with the slope (145) projects outward.

Next, in the spout plug having a built-in opening blade provided with a notched blade portion, the cap (200) has a guide inner cylinder (23) on the lower surface of the top plate (210) as shown in FIG.
0), and a spiral descending guide slope (23) having an outer peripheral surface on the upper side protruding outward on the outer peripheral surface of the guide inner cylinder.
2) and a spiral ascending guide slope (233) having a lower outer peripheral surface protruding outward are provided so as to correspond to each other at the same angle, usually inclined leftward. 233) is formed at a position lower than the lower end of the descending guide slope (232). The cap (2
00) on the inner surface of the peripheral wall (220), the spout (100)
And a helical screw portion (221) that is screwed into the screw hole.

The spout (100) usually has 8 spouts on the inner surface of the spout cylinder (120) projecting from the flange (110).
And a protection ring (140) having four projections (141) on the outer peripheral surface of the upper end, which slides in the vertical groove, is inserted. Usually, four protrusions (141) are provided on the upper end surface of the outer periphery to slide in the longitudinal groove (122), and an opening blade (132) having a notched blade portion (133) at the lower end is formed. A spiral descending guide slope (134) having a lower inner peripheral surface that slides in contact with the descending guide slope (232) of the guide inner cylinder (230), and a guide inner cylinder (230). An upper inner peripheral surface that is in sliding contact with the ascending guide slope (233) forms a spiral ascending guide slope (135) that protrudes inward, and has a two-step outer periphery in which the upper diameter is larger than the lower diameter. The opening cylindrical body (130) is slidably inserted. It should be noted that a spiral screw portion (121) for screwing with the cap (200) is provided on the outer surface of the spout cylinder (120) of the spout (100).

When the cap (200) attached to the spout (100) is turned counterclockwise to remove it, the opening cylinder (130) moves downward, and as shown in FIG. (132) breaks the sealing film (30), and the broken pieces (31) are connected to the sealing film at the unruptured portion and droop into the container, and then, as shown in FIG. The upper end of the protection ring (140) is pushed by the step (138) on the outer periphery of the cylindrical body (130), and the protection ring projects into the container. Further, when the cap is rotated counterclockwise, the opening cylinder (130) moves upward, and when the cap is detached from the spout, as shown in FIG. ).

For this reason, the opened liquid paper container is
As shown in Fig. 2, the protection ring (140) only protrudes into the container, and when the used container is disassembled and separated and collected, there is a danger of injury to hands etc. by the opening blade of the spout plug. In addition, since the broken fragments connected to the sealing film are protected by the protective ring from the sliding opening cylinder, there is no danger of falling into the container.

As shown in FIG. 7, in the spout plug having a built-in opening blade provided with a notched blade portion, as shown in FIG.
0), the upper end of the spiral ascending guide slope (135) formed on the inner peripheral surface of the unsealing tubular body (130) and projecting inward from the upper end, and the lower inner periphery The lower guide slope (134) of the unsealing tubular body (130) is formed above the upper end of the spiral descending guide slope (134) whose surface protrudes inward. ), And a lower descending outer peripheral surface slidingly contacting a rising guide inclined surface (145) of the open envelope body (130), and a spiral descending guide inclined surface (232) projecting outward on the upper side in sliding contact with the outer peripheral surface. And a spiral ascending guide slope (233) projecting therefrom.

Also, a breakable sealing film (30)
Is provided not on the discharge hole of the liquid paper container (20) but on the lower surface of the flange (110) below the spout,
The spout is fitted from the inside of the pouring hole and the flange (11
A structure may be adopted in which the upper surface of 0) and the inner surface of the container are heat-sealed.

[0027]

According to the present invention, even if the container is disassembled for sorting and collecting after use, the opening blade is housed in the cap, and the conventional paper container with the spout plug incorporating the opening blade is used. As there is no opening blade protruding inside the container, there is no danger of injury to hands and the like.

Further, the broken pieces broken by the opening blade are removed by the hook pins or protected by the protection ring, and do not fall into the container.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing the structure of a spout plug having a built-in opening blade according to an embodiment of the present invention attached to a liquid paper container.

FIG. 2 is an explanatory view showing a structure of a spout plug having a built-in opening blade according to another embodiment of the present invention attached to a liquid paper container.

FIG. 3 is an explanatory view showing a state in which, in the process shown in FIGS. 1 and 2, in the process of removing the cap, the opening cylinder descends and the hook pin pierces the sealing film.

FIG. 4 is an explanatory view showing a state in which, in the process of removing the cap, the unsealing cylinder descends and the unsealing blade breaks the sealing film in the embodiment shown in FIGS. 1 and 2;

FIG. 5 is an explanatory view showing a state when a cap is removed from a spout in the embodiment shown in FIGS. 1 and 2;

FIG. 6 is an explanatory view showing the structure of a spout plug with a built-in opening blade according to another embodiment of the present invention attached to a liquid paper container.

FIG. 7 is an explanatory view showing the structure of a spout plug having a built-in opening blade according to another embodiment of the present invention attached to a liquid paper container.

FIG. 8 is an explanatory view showing a state in which, in the process of removing the cap, the opening tubular body is lowered and the opening blade breaks the sealing film in the embodiment shown in FIGS. 6 and 7;

FIG. 9 is an explanatory view showing a state in which the protective ring projects into the container in the process of removing the cap in the embodiment shown in FIGS. 6 and 7.

FIG. 10 is an explanatory view showing a state in which the cap is removed from the spout in the embodiment shown in FIGS. 6 and 7.

FIG. 11 is an explanatory view showing a state of a spout stopper when the liquid paper container is opened in the embodiment shown in FIGS. 1 and 2;

FIG. 12 is an explanatory view showing a state of a spout stopper when the liquid paper container is opened in the embodiment shown in FIGS. 6 and 7.

FIG. 13 is an explanatory view showing a state of a spout plug when the container is opened in a conventional liquid paper container to which a spout plug having a built-in opening blade is attached.

[Explanation of symbols]

 Reference Signs List 10 spout stopper 20 liquid paper container 21 top inclined plate 30 sealing film or film 31 broken piece 40 contents 100 spout 110 flange 120 spout cylinder 121, 221 Threaded portion 122 Vertical groove 130 Opening cylinder 131, 141 Projection 132 Opening blade 133 Missing blade portion 134, 232 Downward guide slope 135, 233 ... Guide slope for ascent 136 ... Crosspiece 137 ... Hook pin 138 ... Step 140 ... Protective ring 200 ... Cap 210 ... Top plate 211 ... Sealing ring 220 ... Peripheral wall 230 ... Inside for guide Pipe

Claims (6)

[Claims] 1. A spout and a cap comprising a spout having a built-in opening blade protruding into a pouring hole of a liquid paper container sealed with a breakable sealing film, wherein a top plate of the cap is provided. On the lower surface, a spiral descending guide slope with an upper outer peripheral surface projecting outward and a spiral ascending guide slope with a lower outer peripheral surface projecting outward with the same inclination to the corresponding outer peripheral surface. And, a guide inner cylinder having a lower end of the ascending guide slope formed below the lower end of the descending guide slope is vertically provided, and a plurality of vertical grooves are formed on an inner surface of the spout discharge cylinder. A helical shape in which a plurality of protrusions sliding on the vertical groove are provided on the outer peripheral surface at the upper end, an opening blade is formed at the lower end, and the inner peripheral surface on the lower side which slides in contact with the descending guide slope of the inner cylinder for guide projects inward. Sliding contact with the descending guide slope of the guide inner cylinder In the step of removing the cap attached to the spout, slidably insert an opening tubular body formed on the inner peripheral surface with a spiral ascending guide slope with an inner peripheral surface protruding inward on one side. The sealing film is broken by an opening blade at the tip of the opening tubular body that descends, and when the cap is removed, the opening tubular body is housed in the cap and separated from the spout. A spout with a built-in opening blade. 2. A spout with a spout and a cap having a spout having a built-in opening blade protruding from a spout hole of a liquid paper container sealed with a breakable sealing film. A plurality of vertical grooves are formed on the inner surface of the cylinder, a plurality of protrusions sliding on the vertical grooves are provided on the outer peripheral surface at the upper end, an opening blade is formed at the lower end, and a spiral inner surface on the lower side protrudes inward. The descending guide slope and the spiral ascending guide slope in which the upper inner peripheral surface protrudes inward, with the same inclination to the corresponding inner peripheral surface,
In addition, an opening tubular body having an upper end of the ascending guide slope formed at a position higher than an upper end of the descending guide slope is slidably inserted therein, and the opening tubular body of the cap is provided on a lower surface of a top plate of the cap. A spiral descending guide slope whose upper outer peripheral surface slidingly contacting the descending guide slope protrudes outward, and a spiral outer peripheral surface of a lower side slidingly contacting the ascending guide slope of the open envelope body. In the process of removing the cap attached to the spout by vertically suspending the guide inner cylinder formed on the outer peripheral surface with the ascending guide slope, the sealing film is lowered by the opening blade at the tip of the opening cylindrical body that descends. Wherein the opening cylinder is housed in the cap and separated from the spout when the cap is removed and the spout is opened. 3. A spout and a spout having a spout having a built-in opening blade protruding from a spout hole of a liquid paper container sealed with a breakable sealing film. On the lower surface, a spiral descending guide slope with an upper outer peripheral surface projecting outward and a spiral ascending guide slope with a lower outer peripheral surface projecting outward with the same inclination to the corresponding outer peripheral surface. And, a guide inner cylinder having a lower end of the ascending guide slope formed below the lower end of the descending guide slope is vertically provided, and a plurality of vertical grooves are formed on an inner surface of the spout discharge cylinder. A plurality of projections sliding on the vertical groove are provided on the outer peripheral surface at the upper end, an opening blade is formed at the lower end, a bar portion is provided at the center on the lower side with a hooking pin projecting downward, and the guide inner cylinder is lowered. Spiral descent with a lower inner peripheral surface that slides in contact with the guide slope An opening cylindrical body having an inner slope and a spiral ascending guide slope formed on an inner peripheral surface, and an upper inner peripheral surface that is in sliding contact with the ascending guide slope of the guide inner cylinder protrudes inward, is slid. Possibly inserted, in the process of removing the cap attached to the spout, break the sealing film with an opening blade at the tip of the opening tubular body descending, hook this broken piece with the hook pin, A spout with a built-in opening blade, wherein when the cap is removed, the opening cylinder is housed in the cap and separated from the spout. 4. A spout with a spout and a cap, wherein the spout has a built-in opening blade protruding from a spout hole of a liquid paper container sealed with a breakable sealing film. A plurality of vertical grooves are formed on the inner surface of the cylinder, a plurality of protrusions sliding on the vertical grooves are provided on the outer peripheral surface at the upper end, an opening blade is formed at the lower end, and a cross section which protrudes a hooking pin downward at the center. A spiral descending guide slope having a lower inner peripheral surface protruding inward, and a spiral ascending guide slope having an upper inner peripheral surface projecting inward, corresponding to the inner periphery. With the same inclination on the surface, and slidably insert an opening tubular body formed at the upper end of the ascending guide slope above the upper end of the descending guide slope, on the top plate lower surface of the cap, A spiral shape in which the upper outer peripheral surface that slides on the descending guide slope of the opening tubular body projects outward. A guide inner cylinder in which a descending guide slope and a spiral ascending guide slope whose outer peripheral surface on the lower side that slides on the ascending guide slope of the unsealed tubular body protrudes outward is provided vertically. In the process of removing the cap attached to the spout, the sealing film was broken with an opening blade at the tip of the opening tubular body descending, the broken piece was hooked with the hook pin, and the cap was removed. A spout plug with a built-in opening blade, wherein the opening cylinder is sometimes housed in the cap and separated from the spout. 5. A spout having a spout having a built-in opening blade and a cap, the spout having a spout and a cap protruding from a spout hole of a liquid paper container sealed with a breakable sealing film. On the lower surface, a spiral descending guide slope with an upper outer peripheral surface projecting outward and a spiral ascending guide slope with a lower outer peripheral surface projecting outward with the same inclination to the corresponding outer peripheral surface. And, a guide inner cylinder having a lower end of the ascending guide slope formed below the lower end of the descending guide slope is vertically provided, and a plurality of vertical grooves are formed on an inner surface of the spout discharge cylinder. A protection ring having a plurality of projections sliding on the vertical groove on the outer peripheral surface at the upper end is inserted, and a plurality of projections sliding on the vertical groove are provided on the upper end surface of the outer periphery above the protection ring, and the lower end is cut off. Forming an opening blade provided with a blade portion, and a guide slope for lowering the guide inner cylinder; A spiral descending guide slope with a lower inner peripheral surface that slides inwardly protrudes inward, and a spiral rise in which an upper inner peripheral surface that slides in contact with the ascending guide slope of the guide inner cylinder projects inward. Forming a guide slope on the inner peripheral surface, slidably inserting an opening tubular body having a two-step outer periphery whose upper diameter is larger than the lower diameter, and removing the cap attached to the spout. In the lowering, the sealing film is broken by an opening blade at the tip of the opening cylinder, the protection ring is projected into the container by a step on the outer periphery, and when the cap is removed, the opening cylinder is A spout plug having a built-in opening blade, which is housed in the cap and separated from the spout. 6. A spout pouring out of a spout and a cap having a spout having a built-in opening blade protruding into a pouring hole of a liquid paper container sealed with a breakable sealing film. A plurality of vertical grooves are formed on the inner surface of the cylinder, and a protection ring having a plurality of protrusions sliding on the vertical grooves on the outer peripheral surface of the upper end is inserted. Above the protection ring, the vertical grooves are formed on the upper end surface of the outer periphery. A plurality of sliding projections are provided, an opening blade is provided with a notched blade portion at the lower end, a spiral descending guide slope having a lower inner peripheral surface projecting inward, and an upper inner peripheral surface being An opening tube having an upwardly projecting spiral ascending guide slope and a corresponding inner peripheral surface having the same inclination, and an upper end of the ascending guide slope formed above the upper end of the descending guide slope. A body is slidably inserted, and a lowering plan of the opening tubular body is provided on the lower surface of the top plate of the cap. A spiral descending guide slope having an upper outer peripheral surface slidingly contacting the slope protruding outward, and a spiral ascending projecting a lower outer peripheral surface slidingly contacting the ascending guide slope of the opening envelope body. In the process of suspending the cap attached to the spout by vertically suspending the guide inner cylinder formed with the guide slope and the outer peripheral surface, breaking the sealing film with the opening blade at the tip of the descending opening cylindrical body. The protection ring is protruded into the container by a step on the outer periphery, and when the cap is removed, the opening cylinder is housed in the cap and separated from the spout. Spout tap.