JPH10245064A - Pour plug including unsealing blade - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pour plug including an unsealing blade in which there is no danger that when a used packaging container is broken down for separate collection, hands or the like are not injured by an unsealing blade of the pour plug. SOLUTION: A threaded part is provided on the inner wall periphery of a cap 200 and a guide cylinder part on the outer periphery of which a guide inclined surface is formed is provided vertically in the central portion of a top plate and in a spout 100, a threaded part for the cap is provided on the outer periphery of a pour cylinder, while a plurality of vertical grooves each having at its lower end an engaging protrusion are provided on the inner periphery thereof. And a protecting cylinder 130 having on its outer periphery a plurality of slide protrusions slidable in the vertical grooves of the spout and having on its inner periphery a plurality of vertical grooves is inserted into the pour cylinder. A straightening plate, which has on its outer periphery a plurality of slide protrusions slidable in the vertical grooves of cylinder 130 and on its inner periphery a guide inclined surface for the cap and which has two flow holes corresponding to the inner periphery below the guide inclined surface, is provided in the protecting cylinder, and an unsealing cylinder 140, in which an unsealing blade is formed at the lower end of the peripheral wall and a plurality of corresponding film removing corners each end of which is located below the unsealing blade are provided on the straightening plate, is slidably inserted into the protecting cylinder.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to sake, fruit juice beverages,
The top of a liquid paper container used for seasonings, oils, liquid detergents, etc.
The present invention relates to a spout plug having a built-in opening blade protruding from a side surface of a bag such as a gusset bag or a standing pouch.

Here, a liquid paper container, a three-side seal bag,
Bags such as four-sided seal bags, gusset bags, and standing pouches are collectively called packaging containers.

[0003]

2. Description of the Related Art Conventionally, a packaging container (20) which is a liquid paper container has, for example, as shown in FIG. 7 (b), a rectangular body and a gable roof-shaped top inclined plate (21). In order to facilitate the pouring, a spout provided with a spout (10) was widely used. This spout plug is a spout (100) (spout tool) with a cap (200) screwed onto the spout (100). There is one disclosed in Japanese Patent No. 35058. A spout with a built-in opening blade
A spout device attached to the spout hole of the liquid paper container sealed with a breakable film and having a cylindrical portion corresponding to the spout hole, and a blade portion inserted into the cylindrical portion of the spout device and attached to a lower edge thereof A cylindrical opening blade having a cap attached to cover the cylindrical portion. Both the inner surface of the cylindrical portion and the outer surface of the opening blade facing the cylindrical portion are slid in contact with each other in the vertical direction. The opening blade is provided so as to be movable up and down with respect to the cylindrical portion, and the opening blade is inclined upward from the upper edge to the lower edge side on the cylindrical wall portion of the opening blade. The cap has a tubular body having a guide slope facing downward and slidingly contacting the slope of the opening blade, and the cap is provided so that the opening blade can be lowered when the cap rotates. At the time of pouring out, as shown in FIG. 7B, the cap (200) is rotated and removed. To come, was to open the container by breaking the film (30) sealed with an opening edge of the tip is lowered open accommodating cylinder (the 140) (143) by rotation of the cap.

Further, assuming that a bag is provided with a spout plug,
JP-A-52-123418, JP-A-59-493.
No. 7, JP-A-57-52437, JP-A-62
There is a device described in -115356.

[0005]

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. 7B, the packaging container (20) provided with the above-described conventional spout plug having a built-in opening blade has the opening blade (143) of the spout plug (10). When the container is disassembled and separated and collected because it protrudes inward, it is easy for the hand to be injured.

Further, when the above-mentioned opening blade is applied to a spout plug provided in a bag, the protruding opening blade hits the film constituting the facing bag, and the film breaks and the contents leak from this portion. There was a problem.

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. The present invention is to provide a spout with a built-in opening blade, which has no risk of injury to hands and the like, does not break the film in the case of a bag, and has a good pouring state when used.

[0008]

That is, the first aspect of the present invention is as follows.
As shown in FIG. 1, a spout (100) and a cap (see FIG. 1), which are heat-fused and protruded from the upper surface of the periphery of an outlet of a packaging container sealed with a breakable sealing film, are provided. 20
0) wherein the cap (20)
In (0), a screwing portion (221) is provided on the inner peripheral surface of the peripheral wall (220), and a guiding tubular portion (230) having a guiding inclined surface (231) formed on the outer peripheral surface is attached to the center of the lower surface of the top plate (210). The spout (100) is vertically provided at a position, and the spout cylinder (110) is erected on the flange (120). The spout (100) is provided with a threaded portion (111) with the cap on the outer peripheral surface of the spout cylinder. A plurality of vertical grooves (112) having locking projections (113) at the lower end are provided on the inner peripheral surface, and the spout vertical grooves (11
2) A protective cylinder (13) having a plurality of sliding projections (131) for sliding on the inner peripheral surface and having a plurality of vertical grooves (132) on the inner peripheral surface.
) Is slidably inserted into the protective cylinder and the peripheral wall (1) is
41) a plurality of sliding projections (142) that slide on the vertical groove (132) of the protective cylinder on the outer peripheral surface, and a guide inclined surface (144) with the cap is formed on the inner peripheral surface; A current plate (145) having two flow holes (146) at corresponding positions is provided on an inner peripheral surface below the guide inclined surface, and the peripheral wall (14) is provided.
An opening blade (143) is formed at the lower end of 1), and a plurality of corresponding film removing corners (147) whose leading ends are located below the opening blade are provided on the current plate (145) inside the opening blade. When the opened tubular body (140) is slidably inserted and the cap is removed, as shown in FIG.
The protective cylinder (130) protruding into the container (0) breaks the sealing film (30) with the opening blade (143) at the lower end and accommodates the opening cylinder (140) protruding into the container inside. 2 is a spout plug (10) shown in FIG.

As shown in FIG. 2, the second invention of the present invention is a spout (100) and a cap (100) which are heat-fused and protruded from the lower surface of the periphery of the plug mounting hole of the packaging container. 20
0) wherein the cap (20)
In (0), a screwing portion (221) is provided on the inner peripheral surface of the peripheral wall (220), and a guiding tubular portion (230) having a guiding inclined surface (231) formed on the outer peripheral surface is attached to the center of the lower surface of the top plate (210). The spout (100) is vertically provided at a position, and the spout cylinder (110) is erected on the flange (120). The spout (100) is provided with a threaded portion (111) with the cap on the outer peripheral surface of the spout cylinder. A plurality of vertical grooves (112) having locking projections (113) at the lower end are provided on the inner peripheral surface, and a sealing film (3) is formed on the lower surface of the flange (120).
0), and a plurality of sliding projections (131) sliding on the spout longitudinal groove (112) on the outer peripheral surface of the spout cylinder (110), and a plurality of vertical protrusions on the inner peripheral surface. A protective cylinder (130) provided with a groove (132) is slidably inserted therein, and a vertical groove (132) of the protective cylinder is formed on the outer peripheral surface of the peripheral wall (141). A plurality of sliding protrusions that slide (142)
The inner peripheral surface has a guide inclined surface (14) with the cap.
4), a current plate (145) having two flow holes (146) at corresponding positions is provided on the inner peripheral surface below the inclined guide surface, and an opening blade (143) is provided at the lower end of the peripheral wall (141). Is formed inside the unsealing blade, and a plurality of corresponding film removing corners (147) whose leading ends are located below the unsealing blade are slid over the unsealing cylinder (140) provided on the rectifying plate (145). When movably inserted and the cap is removed, the protective cylinder (130) projecting into the container breaks the sealing film (30) with the opening blade (143) at the lower end and into the container. A spout plug (10) having a built-in opening blade, wherein a protruding opening cylinder (140) is housed and fixed inside.
It is.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A spout plug incorporating an opening blade according to the present invention is sealed with a sealing film (30) from the inside of a packaging container (20) as shown in FIG. For example, the lower surface of the flange (120) of the spout (100) is heat-sealed by ultrasonic sealing or the like to protrude from the upper surface of the periphery of the pouring hole (22) of the top inclined plate (21), or FIG.
As shown in (b), a sealing film (30) was heat-sealed to the lower surface of the flange (120) of the spout (100) by an ultrasonic sealing method, an insert injection molding method or the like to seal the pouring hole. The spout plug of the present invention is connected to the liquid paper container (2).
The spout cylinder is inserted into the plug mounting hole (23) of (0), and the upper surface of the flange (120) is thermally fused to the lower surface of the peripheral portion of the plug mounting hole of the container so as to protrude.

As shown in FIG. 1, the constituent members of the spout plug (10) of the present invention include a cap (200), a spout (100), a protective cylinder (130), and an opening cylinder (140). ). Next, the structures of these constituent members will be described in detail.

First, the cap (200) is attached as shown in FIG.
And (b), the top plate (210) and the peripheral wall (22)
0), a screwing portion (220) with a spout is provided on the inner peripheral surface of the peripheral wall, and a protective cylindrical body is provided on the outer peripheral surface at the center position of the lower surface of the top plate (210). ) Is a vertically extending guide tubular portion (230) provided with a guide inclined surface (231) shown in a development view as viewed from the outside.

Next, as shown in FIGS. 1 and 2, the spout (100) has a spout cylinder (110) erected on the inner peripheral edge of the flange (120). 11
On the outer peripheral surface of 0), a screwing portion (111) with the cap is provided,
The inner peripheral surface is provided with a plurality of vertical grooves (112) having usually eight locking projections (113).

Next, as shown in FIGS. 1 and 2, the protective cylinder generally has a plurality of sliding projections (131) which slide in the vertical groove (112) of the spout on the outer peripheral surface thereof. The inner peripheral surface is usually provided with a plurality of vertical grooves (132) having locking projections (133).

Next, as shown in FIGS. 4 (a) and 4 (b), the opening cylindrical body has a plurality of sliding projections which slide on the outer peripheral surface of the peripheral wall (141) along the vertical groove of the protective cylindrical body. (142), a guide inclined surface (144) with the cap is formed on the inner peripheral surface, and two flow holes (1) are formed on the inner peripheral surface below the guide inclined surface.
A rectifying plate (145) having a corresponding position 46) is provided, and an opening blade (143) is formed at the lower end of the peripheral wall (141). A plurality of corresponding film removal corners (147) are provided on the current plate. The opening blade usually has a plurality of triangular blades arranged side by side. However, in order to prevent broken pieces of the sealing film from dropping, a notched blade portion is provided at an arbitrary position.

The cap, spout,
The protective cylinder and the opening cylinder are made by injection molding using a thermoplastic resin such as polyethylene or polypropylene. As shown in FIG. 1 or FIG.
00), a protective cylinder (130) and an opening cylinder (140).
Is inserted, and the cap (200) is screwed and attached to produce a spout plug incorporating the opening blade of the present invention. In addition, the sealing film is a laminated film that can be broken by an opening blade, for example, a polyolefin layer formed on the front and back of an aluminum foil.

In the packaging container according to the present invention, in which the spout is provided at the top thereof and which has a spout plug having a built-in opening blade, the cap is rotated upward to remove the cap, and is guided vertically from the top plate of the cap. The guide inclined surface on the outer peripheral surface of the opening cylindrical portion comes into sliding contact with the guide inclined surface on the inner peripheral surface of the opening cylindrical member, and the opening cylindrical member receives a force in a direction opposite to the rotation direction of the cap. Since the sliding protrusion on the outer peripheral surface of the cylindrical body is in sliding contact with the vertical groove on the inner peripheral surface of the outer protective cylindrical body, the opening cylindrical body descends along the vertical groove, and first, the film removing corner is formed. Breaks through the sealing film, and then breaks the sealing film with an opening blade to open the packaging container. Also, in conjunction with the descending opening cylinder, the protection cylinder also slides the sliding protrusion on the outer peripheral surface into sliding contact with the vertical groove on the inner peripheral surface of the spout ejection cylinder, and descends along the vertical groove. And
As shown in FIG. 3, a fragment (3
1) is removed on the side of the outer peripheral surface of the protective cylinder (130) that is continuous with the unruptured sealing film, and when the cap is removed, the protective cylinder (130) is opened. 1
40) is housed inside, and the sliding protrusion (131) on the outer peripheral surface is accommodated.
Lock projection (113) at the lower end of the vertical groove on the inner peripheral surface of the spout
It is designed so that it abuts against and is fixed.

Then, as shown in FIG. 7 (a), the spout plug (10) containing the opening blade of the present invention is attached to the top inclined plate (2).
The packaging container (20) protruding from 1) is provided with a cap (20).
0) is removed and the container is opened once, the opening cylinder (140) and the protection cylinder (130) project into the container, but the opening cylinder (140) having the opening blade (143) is Since the container is housed inside the protective cylinder (130), when the used container is disassembled and separated and collected, the hand or the like is not injured by the opening blade (143). Further, as shown in FIG. 3, broken pieces (31) broken by the opening blade of the sealing film (30) remove the film from the outer peripheral surface of the protection cylinder (130) and the opening cylinder (140). The spout (100) is not obstructed by the use angle (147) and does not block the spout (100). Further, two flow holes (146) provided at positions corresponding to the straightening plate (145) of the opening tubular body. ), When the contents are poured out, one of the contents is poured out and the other flows in the air, so that the contents (40) in use are very well discharged.

[0019]

According to the present invention, in the case of the packaging container equipped with a spout plug having a built-in opening blade, even if the container is disassembled for separation and collection after use, the opening blade of the opening cylinder is protected by the protection tube. Since it is protected by the body, there is no risk of injury to the hand or the like by the opening blade protruding inside the container like a conventional spout with a built-in opening blade.

Further, even if it is provided in the bag, since the opening blade of the opening tubular body is protected by the protective tubular body, the facing film is not broken.

Further, the broken pieces broken by the opening blade do not obstruct the pouring of the contents by closing the pouring hole.
Due to the rectifying effect of the rectifying plate provided on the opening cylinder, the state of pouring out the contents during use is extremely good.

[Brief description of the drawings]

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

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.

FIG. 3 is an explanatory view showing a state in which a cap of a spout plug of the embodiment shown in FIG. 1 attached to a packaging container is removed.

4A is a plan view of one embodiment of an opening tubular body, FIG. 4B is a cross-sectional view, and FIG. 4C is a developed view as viewed from the inside.

FIG. 5A is a bottom view of one embodiment of a cap, and FIG. 5B is a partial cross-sectional view with a part cut away;
(C) is a development view seen from the outside of the opening tubular body.

FIG. 6 (a) is an explanatory view showing a state where a spout is externally attached to a spout hole of a packaging container, and FIG. 6 (b) is an explanatory view showing an internal state where a spout is attached.

7A is an explanatory view showing a state in which the packaging container to which the spout plug of the embodiment shown in FIG. 1 is attached is opened, and FIG. 7B is a view showing a conventional example of an opening blade. It is explanatory drawing which shows the state at the time of opening the packaging container to which the built-in spout stopper was attached.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Spout plug 20 ... Packaging container 21 ... Top inclined plate 22 ... Spout hole 23 ... Spout mounting hole 30 ... Seal film 31 ... Fragment 40 ... Contents 100 ... Spout 110 Spouting cylinder 111, 221 Threaded portion 112, 132 Vertical groove 113 Locking projection 120 Flange 130 Protection cylinder 131, 142 Sliding projection 140 Opening tubular body 141, 220 ... Peripheral wall 143 ... Opening blade 144, 231 ... Guide inclined surface 145 ... Rectifying plate 146 ... Flow hole 147 ... Film removal angle 200 ... Cap 210 ... Top plate 230 ...... Guiding tube

Claims (2)

[Claims] 1. A spout and a spout cap comprising a spout and a cap, which are heat-fused and protruded from an upper surface of a periphery of a spouting hole of a packaging container sealed with a breakable sealing film. The cap is provided with a threaded portion on the inner peripheral surface of the peripheral wall, a guide cylinder portion having a guide inclined surface formed on the outer peripheral surface is vertically suspended at a central position on the lower surface of the top plate, and the pouring cylinder is erected on the flange. The spout is provided with a threaded portion with the cap on the outer peripheral surface of the spout cylinder, and provided with a plurality of vertical grooves having locking projections at the lower end on the inner peripheral surface. It has a plurality of sliding projections that slide in the vertical groove of the spout, and slidably inserts a protective cylinder provided with a plurality of vertical grooves on the inner peripheral surface, and the outer periphery of the peripheral wall is attached to the protective cylinder. The surface has a plurality of sliding protrusions that slide in the vertical groove of the protective cylinder, forming a guide inclined surface with the cap on the inner peripheral surface,
A rectifying plate having two flow holes at corresponding positions is provided on an inner peripheral surface below the guide inclined surface, and an opening blade is formed at a lower end of the peripheral wall, and a tip is located inside the opening blade below the opening blade. A plurality of corresponding film removal corners are slidably inserted into an opening cylinder provided on the current plate, and when the cap is removed, the protection cylinder protruding into the container has a lower end. A spout with a built-in opening blade characterized in that the opening film is broken by the opening blade and the opening cylindrical body projecting into the container is housed inside and fixed. 2. A spout and a cap comprising a spout and a cap projecting by being thermally fused to a lower surface of a peripheral portion of a spout mounting hole of a packaging container, wherein the cap has a screw on an inner peripheral surface of a peripheral wall. A joint portion is provided, a guide cylinder portion having a guide inclined surface formed on the outer peripheral surface is vertically installed at a central position on the lower surface of the top plate, and the spout in which the spout cylinder is erected on the flange is provided on the outer periphery of the spout cylinder. Provide a threaded portion with the cap on the surface, provide a plurality of vertical grooves having a locking projection at the lower end on the inner peripheral surface, heat-sealing a sealing film on the lower surface of the flange, to the pouring cylinder, The outer peripheral surface has a plurality of sliding protrusions that slide in the vertical groove of the spout, and a protective cylindrical body provided with a plurality of vertical grooves on the inner peripheral surface is slidably inserted therein. The outer peripheral surface of the peripheral wall has a plurality of sliding protrusions for sliding in the vertical groove of the protective cylinder, and the inner peripheral surface is formed with a guide inclined surface with the cap. A straightening plate having two communication holes at corresponding positions is provided on the inner peripheral surface below the guide inclined surface, and an opening blade is formed at the lower end of the peripheral wall, and the tip is located inside the opening blade at a position lower than the opening blade. A plurality of corresponding film removal corners are slidably inserted into the opening cylinder provided on the current plate, and when the cap is removed, the protection cylinder protruding into the container is provided at the lower end. A spout plug having a built-in opening blade, wherein the opening film is broken by the opening blade and the opening cylindrical body protruding into the container is housed inside and fixed.