JPH11139449A - Ejection port plug incorporating unsealing blade - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ejection port plug incorporating an unsealing blade wherein there is no danger that a hand or the like may be injured by the unsealing blade of the ejection port plug protruding inside a used paper container for liquid when the container is to be disassembled for classified recovery. SOLUTION: The ejection port plug comprises a spout 100 incorporating an unsealing blade 140 protruding from an ejection hole of a paper container for liquid sealed by a seal film 30 and a cap 200. The cap 200 is equipped with a threaded part on an inner peripheral face of a peripheral wall, and a guiding inner cylinder forming a plurality of spiral guide slopes on an outer peripheral face is provided hanging on a lower face of a top plate. The spout 100 is equipped with a threaded part with the cap 200 on an outer peripheral face of the ejection cylinder, and a plurality of guide slopes having a plurality of longitudinal grooves having a locking part on a lower part, having a plurality of sliding protrusions sliding in the longitudinal grooves on an outer peripheral face above and in slide contact with the guide slopes of the cap 200 on an internal peripheral face are formed on an internal face. A plurality of unsealing blades 140 are provided around a lower end, and an unsealing cylinder 130 equipped with an anti-damaging blade 150 having a curved tip face and positioned lower than a tip of the unsealing blade is inserted inside each of the unsealing blades 140.

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 a seasoning, a softener, a liquid detergent, or the like.

[0002]

2. Description of the Related Art Conventionally, a liquid paper container (20) has a square body as shown in FIG. 11, 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)
To which a cap (200) is screwed and crowned.
As an incorporation of an opening blade in a spout plug, for example, there is one disclosed in Japanese Utility Model Publication No. 5-35058. 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 substantially cylindrical opening blade having a blade portion at the lower edge inserted into the cylindrical portion, and a cap attached so as to cover the cylindrical portion,
Both the inner surface of the cylindrical portion and the outer surface of the opening blade opposed thereto are provided with rotation preventing 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 opening blade includes a cylindrical wall portion of the opening blade, which has a slope inclined upward from the upper edge toward the lower edge and facing upward, and the cap includes a guide slope facing downward and slidingly contacting the slope of the opening blade. It has a body and is provided with an opening blade that can be lowered when the cap is rotated. When the cap is rotated and removed to pour out the contents, for example, as shown in FIG. 200), the opening blade (opening cylinder in the name of the present invention) (130) is lowered, and the blade portion (opening blade in the name of the present invention) provided at the tip is lowered (140).
The film (30) to be sealed was broken to open the container. The lower edge of the opening blade usually has a plurality of triangular teeth or a sawtooth shape.

[0003]

However, recently, from the standpoint of environmental protection and resource saving, it has been required to separate and collect used containers and packages and discard or recycle them. However, the above-described conventional liquid paper container (20) equipped with a spout plug having a built-in opening blade is not shown in FIG.
As shown in FIG. 1, the opening cylinder (13) of the spout plug (10) is opened.
0) protrudes into the inside of the container, and when the container is disassembled and separated and collected by the triangular or serrated opening blade (140) provided at the end thereof, the hand or the like may be easily injured. .

The present invention solves the above-described problem of the conventional spout plug having a built-in opening blade. When a used liquid paper container is disassembled and separated and collected, a liquid projecting into the container is projected. It is an object of the present invention to provide a spout plug with a built-in opening blade which has no risk of injury to a hand or the like with the opening blade of the outlet plug.

[0005]

That is, the first aspect of the present invention is as follows.
According to the invention, as shown in FIG. 8, a liquid paper container (20) sealed with a breakable sealing film (30) is heat-sealed or adhered to the upper surface of a peripheral portion of a pouring hole (22). In a spout plug including a spout (100) containing a protruding opening blade and a cap, the cap (200) includes:
As shown in FIGS. 7A to 7C, a screw portion (221) is provided on the inner peripheral surface of the peripheral wall (220), and a plurality of spiral guide slopes ( 231), the guide inner cylinder (230) is vertically installed, and the spout (1) is formed.
00), as shown in FIGS. 6 (a) and 6 (b), a threaded portion (11
1) is provided, and a plurality of vertical grooves (112) having a locking portion (113) below are formed on the inner surface, as shown in FIGS. 1 (a) to (c) or FIGS. 2 (a) and (b). As described above, a plurality of sliding protrusions (131) sliding on the vertical groove are provided on the upper outer peripheral surface,
A plurality of guide slopes (132) are formed on the inner peripheral surface to be in sliding contact with the guide slopes of the cap, and a plurality of opening blades (1) are formed at the lower end.
40), and the inside of each of these opening blades is fitted with an opening tubular body (130) having a curved tip with a scratch prevention blade (150) arranged below the tip of the opening blade. Then, when the cap (200) is rotated and removed, as shown in FIG.
Is a spout plug (10) having a built-in opening blade, characterized in that the sealing film (30) is broken by the opening blade (140) at the lower end.

Next, according to a second aspect of the present invention, as shown in FIG. 9, a liquid paper container (20) is provided on the lower surface of a peripheral portion of a plug mounting hole (23) by heat fusion or bonding so as to protrude. 7 (a) to 7 (c), the spout (100) includes a spout (100) having a built-in opening blade and a cap. A screwing part (221) is provided, and a guide inner cylinder (230) which forms a plurality of spiral guiding slopes (231) on the outer peripheral surface is vertically provided on the lower surface of the top plate (210), and the spout (100) is provided. In
As shown in FIGS. 6A and 6B, the dispensing cylinder (110)
A plurality of vertical grooves (11) having a screw portion (111) with the cap on the outer peripheral surface and a locking portion (113) below the inner surface.
2), and as shown in FIGS. 1 (a) to 1 (c) or FIGS. 2 (a) and 2 (b), a plurality of sliding projections (131) sliding on the vertical groove are formed on the outer periphery of the upper part. And a plurality of guide slopes (13) sliding on the inner peripheral surface with the guide slope of the cap.
2) is formed, a plurality of opening blades (140) are provided around the lower end, and the inside of each of these opening blades has a curved surface and the tip is a curved surface and is located below the tip of the opening blade.
0) is inserted with the opening cylinder (130) arranged side by side, and
As shown in FIG. 9, a sealing film (30) is heat-sealed or bonded to the lower surface of the flange (120) of the spout (100) to seal it. A spout with a built-in opening blade, wherein the opening cylinder is lowered to break the sealing film with the opening blade at the lower end.

Next, a third invention of the present invention relates to an unsealing device, which is formed by heat-sealing or adhering to an upper surface of a peripheral edge portion of a pouring hole of a liquid paper container sealed with a breakable sealing film. In a spout plug comprising a spout and a cap having a built-in blade, a plurality of unsealing blades are provided at the lower end of the spout discharge cylinder, and the inside of each of the unsealed blades has a curved tip and the unsealing is performed. Inserting an unsealing tubular body having juxtaposition-preventing blades positioned below the tip of the blade, and lowering the unsealing tubular body with a finger when opening the liquid paper container, thereby opening the unsealing barrel. A spout with a built-in opening blade, wherein the sealing film is broken by a body opening blade.

According to a fourth aspect of the present invention, there is provided a spout having a built-in opening blade protruded by heat-sealing or adhering to the lower surface of the periphery of the plug mounting hole of the liquid paper container, and a cap. In the outlet plug, a plurality of opening blades are provided at the lower end of the spout discharge cylinder, and the inside of each of these opening blades has a curved surface with a tip having a curved surface and a position below the tip of the opening blade. Insert the opening cylinder with juxtaposed, and,
A sealing film is heat-sealed or adhered to the lower surface of the spout flange to seal it, and when opening the liquid paper container, the opening cylinder is lowered with a finger to remove the opening cylinder. A spout with a built-in opening blade, wherein the sealing film is broken by the opening blade.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION A spout (10) having a built-in opening blade according to the present invention, as shown in FIG.
The lower surface of the flange (120) of the spout (100) is superposed on the upper surface of the periphery of the spout hole (22) of, for example, the top inclined plate (21) sealed with the sealing film (30) from the inside of the inside of the spout (100). The sealing film (30) is attached to the lower surface of the flange (120) of the spout (100) as shown in FIG. The spout (100) in which the spout hole is sealed by heat sealing or bonding with an adhesive by a heat sealing method or an insert injection molding method is poured into the spout mounting hole (23) of the liquid paper container (20). The outlet cylinder (110) is inserted, and the upper surface of the flange (120) is thermally fused or adhered to the lower surface of the peripheral portion of the plug mounting hole (23) of the liquid paper container (20) so as to project therefrom. Attached).

[0010] The constituent members of the spout plug of the present invention include:
It comprises a cap, a spout, and an opening cylinder provided with an opening blade at the lower end. Next, the structures of these constituent members will be described in detail.

First, the cap (200) according to the first and second aspects of the present invention, as shown in FIGS.
It is composed of a top plate (210) and a peripheral wall (220), and a threaded portion (221) with a spout is provided on the inner peripheral surface of the peripheral wall. A guide inner cylinder (230) which is formed in a spiral shape with a cylindrical body and usually corresponds to two or more guide slopes (231) is vertically provided. Further, the cap according to the third and fourth aspects of the present invention may be a normal cap comprising a top plate and a peripheral wall, and a threaded portion with a spout provided on the inner peripheral surface of the peripheral wall.

Next, the spout (100) according to the first and second aspects of the present invention, as shown in FIGS.
A spout cylinder (110) is erected on the inner peripheral edge of the flange (120). A threaded portion (111) with a cap is provided on the outer peripheral surface of the spout cylinder (110), and the inner peripheral surface is provided. Is provided with a plurality of vertical grooves (112), usually consisting of eight, having locking portions (113) below. In addition, the third and fourth
The spout according to the invention of the present invention is characterized in that a spout cylinder is erected on the inner peripheral edge of the flange, and a threaded portion with a cap is provided on the outer peripheral surface of the spout cylinder. Are provided with a plurality of vertical grooves having locking portions below. The spouts according to the second and fourth inventions include:
The sealing film is heat-sealed or bonded to the lower surface of the flange.

Next, the opening cylinder (130) according to the first and second inventions is shown in FIG. 1 (a) to (d) or FIG.
As shown in (a) and (b), usually four sliding projections (131) are provided above the outer peripheral surface to slide in the vertical groove (112) of the spout, and on the inner peripheral surface, Usually, a plurality of guide slopes (132) that are in sliding contact with the guide slopes (231) of the cap are formed in correspondence with each other, and a plurality of opening blades (140) are provided around the lower end, and each of these opening blades is provided. An anti-scratch blade (150) having a curved front end and a lower position than the front end of the opening blade is provided side by side inside. Also,
The opening cylinder according to the third and fourth inventions is provided with an opening blade and a scratch-preventing blade at the lower end in the same manner, and if necessary, slides the vertical groove of the spout above the outer peripheral surface. It is provided with a plurality of sliding projections.

Then, an opening blade (140) and a scratch preventing blade (150) provided at the lower end of the above-mentioned opening cylinder (130).
Usually, for example, as shown in FIGS. 3A and 3B, an opening blade (140) having a tip angle of 70 ° and a height of 2.3 mm is provided with a curved surface having a tip of R0.8. Height is 2.8
5 (a) and 5 (b), or as shown in FIGS. 5 (a) and 5 (b), an unsealing blade (140) having a tip angle of 100 ° and a height of 2.3 mm and a tip of R0.8. And a scratch-preventing blade having a height of 2.8 mm. In addition, as shown in FIG. 1 (c) or FIG. 4, the opening blade is provided with a cutting edge portion (141) so that a broken piece of the sealing film does not fall, and a plurality of opening blades are opened. (1
30).

[0015] The cap, spout,
The opening tubular body provided with the opening blade and the scratch prevention blade at the lower end is manufactured by an injection molding method using a thermoplastic resin such as polyethylene or polypropylene. Then, the sliding protrusion on the outer peripheral surface of the opening cylinder is fitted into the vertical groove of the spout, the opening cylinder is inserted inside the spout so as to be slidable up and down, and the cap is screwed onto the spout to cap. This is to produce a spout plug with a built-in opening blade according to the present invention. Note that the sealing film is a laminated film that can be broken by an opening blade, and is provided with a polyolefin layer on the front and back of an aluminum foil, for example.

In a liquid paper container having a spout opening plug with a built-in opening blade according to the first and second aspects of the present invention protruding from the top, the cap is rotated upward to remove the cap. The guide slopes (231) on the outer peripheral surface of the guide inner cylinder (230) vertically hanging from the top plate (210) of the cap (200) shown in FIGS.
Or, the opening cylinder (130) shown in FIGS. 2 (a) and 2 (b).
Slidingly contacts the guide slope (132) on the inner peripheral surface of the opening cylindrical body, and receives a force in the direction of rotation opposite to the rotation direction of the cap, but the sliding protrusion (131) on the outer peripheral surface of the opening cylindrical body is shown in FIG. 6 (a) and (b) Spouting cylinder (110) for spout (100)
Is in sliding contact with the vertical groove (112) provided on the inner surface of the sealing film, so that the opening cylindrical body descends along the vertical groove, and first, the curved-shaped tip of the scratch prevention blade (150) is sealed with the sealing film. (3
0), tension is applied to the sealing film, and then the sealing film (30) is broken by the opening blade (150) to open the liquid paper container (20) as shown in FIG. .

The liquid paper container (20) having the spout plug (10) incorporating the opening blade of the present invention protruding from the top inclined plate (21) is provided with a cap (20) as shown in FIG.
0) is removed, and once the container is opened, the opening cylinder (130) protrudes into the container, but at the lower end of the opening cylinder,
As shown in FIG. 3 (a) or FIG. 5 (a), inside each of a plurality of peripherally-provided opening blades (140), a flaw-preventing blade (the tip of which is curved and located below the opening edge of the opening blade (140)). Fifteen
When the used containers are disassembled and separated and collected, hands etc. first come into contact with the scratch prevention blade, and the contact with the opening blade is weakened. No injuries to you.

[0018]

According to the present invention, the liquid paper container equipped with the spout plug incorporating the opening blade has a curved end inside each of the plurality of opening blades provided at the lower end of the opening cylindrical body. The anti-scratch blades located below the tip of the opening blade are arranged side by side, so when the container is disassembled for separate collection after use, even if the hands touch the opening blade, the hands may be hurt. Absent.

[Brief description of the drawings]

FIG. 1A is a plan view of an opening cylinder of an outlet plug according to an embodiment of the present invention, and FIG. 1B is a cross-sectional view thereof.
(C) is a bottom view thereof.

2 (a) is a developed view as viewed from the outside of the opening tubular body of FIG. 1, and FIG. 2 (b) is a developed view as viewed from the inside.

3A is a partial front view showing an embodiment of an opening blade and a scratch prevention blade provided at a lower end of the opening cylindrical body of FIG. 1, and FIG. 3B is a partial bottom view thereof. is there.

FIG. 4 is a bottom view of an opening cylinder of an outlet plug according to another embodiment of the present invention.

5A is a partial front view showing an embodiment of an opening blade and a scratch prevention blade provided at a lower end of the opening cylindrical body of FIG. 4, and FIG. 5B is a partial bottom view thereof. is there.

6A is a plan view of a spout of a spout according to an embodiment of the present invention, and FIG. 6B is a cross-sectional view thereof.

FIG. 7 (a) is a plan view of a spout cap according to an embodiment of the present invention in which a part of a cap is cut away, FIG. 7 (b) is a bottom view thereof, and FIG. It is a development view showing the guide slope seen.

FIG. 8 is an explanatory view showing a state in which a spout is externally attached to an ejection hole of a liquid paper container.

FIG. 9 is an explanatory view showing a state in which a spout is internally installed in a spout mounting hole of a liquid paper container.

FIG. 10 is an explanatory view showing a state in which the liquid paper container to which the spout plug incorporating the opening blade according to the embodiment of the present invention is attached is opened.

FIG. 11 is an explanatory view showing a state in which a liquid paper container to which a spout stopper having a built-in opening blade of the related art is attached is opened.

[Explanation of symbols]

 10 spout plug 20 liquid paper container 21 top inclined plate 22 spout hole 23 spout mounting hole 30 sealing film 31 broken piece 100 spout 110 spout Outer cylinders 111, 221 Threaded section 112 Vertical groove 113 Locking section 120 Flange 130 Opening cylinder 131 Sliding projection 132, 231 Guide slope 140 Opening blade 141: Missing blade portion 150: Scratching prevention blade 200: Cap 210: Top plate 220: Peripheral wall 230: Guide inner cylinder

Claims (4)

[Claims] 1. A spout and a cap having a built-in opening blade protruded by heat-sealing or adhering to the upper surface of the periphery of a pouring hole of a liquid paper container sealed with a breakable sealing film. In the spout stopper, the cap is provided with a threaded portion on the inner peripheral surface of the peripheral wall, and a guide inner cylinder which forms a plurality of spiral guide slopes on the outer peripheral surface is vertically provided on the lower surface of the top plate, and the spout is provided. Has a threaded portion with the cap on the outer peripheral surface of the pouring cylinder,
Forming a plurality of vertical grooves having a locking portion below on the inner surface, and having a plurality of sliding protrusions sliding on the vertical grooves on the upper outer peripheral surface,
A plurality of guide slopes that are in sliding contact with the guide slope of the cap are formed on the inner peripheral surface, a plurality of opening blades are provided at the lower end, and the inside of each of these opening blades has a curved tip with a curved surface. When inserting an opening cylinder having a scratch-prevention blade located below the tip and rotating and removing the cap, the opening cylinder is lowered and the sealing blade is closed at the lower end by the opening blade. A spout with a built-in opening blade characterized by breaking the stop film. 2. A spout and cap comprising a spout and a cap having a built-in opening blade which is formed by being thermally fused or adhered to a lower surface of a peripheral portion of a spout mounting hole of a liquid paper container. A threaded portion is provided on the inner peripheral surface of the peripheral wall, and a guide inner cylinder which forms a plurality of spiral guide slopes on the outer peripheral surface is vertically provided on the lower surface of the top plate, and the spout is provided on the outer peripheral surface of the spout cylinder. A threaded portion with the cap is provided, a plurality of vertical grooves having a locking portion below the inner surface are formed, and a plurality of sliding projections sliding on the vertical grooves are provided on an upper outer peripheral surface, A plurality of guide slopes which are in sliding contact with the guide slope of the cap are formed on the surface, a plurality of opening blades are provided at the lower end, and the tip of each of these opening blades has a curved surface inside the opening blade. Insert an opening tubular body having juxtaposed anti-scratch blades at the lower position, and fit the spout flange. The sealing film is heat-sealed or adhered to the surface and sealed, and when the cap is rotated and removed, the unsealing cylinder descends and breaks the sealing film with the unsealing blade at the lower end. A spout with a built-in opening blade. 3. A spout and a cap having a built-in opening blade protruded by heat-sealing or adhering to an upper surface of a peripheral portion of a pouring hole of a liquid paper container sealed with a breakable sealing film. In the spout spout, a plurality of opening blades are provided around the lower end of the spout outlet cylinder, and the inside of each of these opening blades has a curved surface with a curved surface and a tip to be positioned below the tip of the opening blade. Inserting an opening cylinder having blades arranged side by side, and when opening the liquid paper container, lowering the opening cylinder with a finger, and using the opening blade of the opening cylinder to seal the sealing film. A spout with a built-in opening blade characterized by breaking. 4. An outlet spout comprising a spout and a cap having a built-in opening blade protruded by heat-sealing or adhering to the lower surface of the peripheral portion of the spout mounting hole of the liquid paper container, and discharging the spout. A plurality of opening blades are provided around the lower end of the tube, and an inner side of each of these opening blades is provided with a tear-prevention blade having a curved surface and a tip located at a position lower than the front end of the opening blade. Inserting, and sealing the sealing film on the lower surface of the flange of the spout by heat sealing or bonding, when opening the liquid paper container, lowering the opening cylinder with a finger, A spout plug having a built-in opening blade, wherein the sealing film is broken by an opening blade of the opening cylindrical body.