JP2004268961A - Plug with unsealing function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plug with an unsealing function with which a position to be a spout hole can be easily opened wide, the finger does not get contaminated when opening, the position to be the spout hole is not opened by a misoperation during a distribution process, and the opening is not narrowed during storage even if a barrier layer of a sealing film at the position to be the spout hole is a vapor deposition film such as silicon oxide. <P>SOLUTION: The plug (10) having a lid (200) connected with a rear spout tubular wall (110) of a plug body (100) via a thin hinge (111) so that it can opened/closed is equipped with an opening (130) in the front of a base plate (120) of the plug body. An upper end horizontal plate (141), an intermediate tilting plate (121), and a lower end horizontal plate (143) are connected on the opening. An unsealing edge (145) is suspended on an outer peripheral lower surface of the upper end horizontal plate and the intermediate tilting plate. A pressing plate (144) is raised at the rear end of the lower end horizontal plate. An unsealing flap (140) is connected with the rear side end of the opening of a base plate via a thin hinge (121). A sealing ring (211) and a locking-cum-pressing plate (213) are suspended from the lower surface of a top plate (210) of the lid (200). <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a spout having an opening function, which is adhered to a pouring hole scheduled to be sealed from the inner surface of a liquid paper container with a sealing film.
[0002]
[Prior art]
Conventionally, at least the center of a liquid paper container made of a laminated sheet mainly composed of paper, a perforated hole where a straight perforation or a cut is formed is sealed from the inner surface with a sealing film. The plug to be used by being adhered on the expected hole position is a plug with an opening function having an opening function of breaking the sealing film. For example, as shown in FIGS. A flange (150), which adheres the lower surface to the upper surface of the liquid paper container, is horizontally provided around the lower end outer periphery of the arc-shaped pouring cylinder wall (110) having left and right sides and a straight line at the rear. At the rear position of the wall, a lid mounting wall (160) linearly extending in the left-right direction and having the width of the rear discharge cylinder wall is erected at the same height as the height of the discharge cylinder wall. At the same time, the pouring cylinder wall (11) is attached to the lower surface of the top plate (210) via a thin hinge (161). ), A lid (200) having a sealing ring (211) is connected so as to be openable and closable, and an opening blade (145) having a linear protruding shape in the front-rear direction is provided on the lower surface of the opening (130) in the pouring cylinder wall. An opening flap (140) having a width gradually narrowing rearward is protruded horizontally forward through a thin hinge (111) on the inner surface of the rearward pouring cylinder wall, and a pouring hole expected position of the liquid paper container. 5 (b), the lid portion (200) is moved backward from the upper end of the outlet cylinder wall (110) of the plug body (100) to the upper end of the lid mounting wall (160). (161) is opened as a branch line, and as shown in FIG. 5 (c), the opening flap (140) in the spouting cylinder wall (110) of the plug body (100) is pressed down with a finger to push it down. Opening to open the pouring hole by breaking the expected pouring hole position and the sealing film stuck on the inner surface Ability with spout (10) is known (e.g., see Patent Document 1). In addition, the opened flap pushed down is sandwiched between the opened pouring holes because the laminated sheet to which the sealing film is pasted has a certain thickness and rigidity, and maintains the opening of the pouring hole.
[0003]
[Patent Document 1]
Published Japanese Utility Model Application No. Hei 7-22921
[Problems to be solved by the invention]
However, the above-mentioned conventional opening function-equipped plug has a problem in that, when the opening flap is pressed down with a finger, the contents are stained with the finger, the opening flap is difficult to push in, or the pushed-in opening flap comes off and the spout hole comes out. The opening sometimes became narrow. In addition, in the conventional sealing film, an aluminum foil layer was generally used as a barrier layer.This aluminum foil layer has an excellent barrier property against oxygen, water vapor, and the like. However, there is a problem that the residual residue remains during incineration and that it is difficult to recycle, which is not preferable in terms of environmental protection. For this reason, recently, a vapor deposition film in which a metal such as silicon oxide or a metal oxide is vapor-deposited on a polyethylene terephthalate film has been used as a barrier layer. This sealing film using a vapor-deposited film for the barrier layer requires a breaking force as compared with the conventional sealing film using an aluminum foil for the barrier layer. In the flap structure, it is difficult to open the expected pouring hole position, and the thin hinge connected to the inner surface of the pouring cylinder wall, which is the bending branch line of the opening flap, is relatively narrow, so it may be cut. was there.
[0005]
The present invention solves the above-mentioned problem of the conventional plug with an opening function, and sets a perforated hole or a cut-out pouring hole expected position of a liquid paper container to a vapor-deposited film such as silicon oxide on a barrier layer. Even if it is sealed with the used sealing film, the expected pouring hole position can be easily opened widely, so that the finger is not stained with the contents at the time of opening, and the pouring hole expected position due to malfunction during the distribution process. The present invention provides a plug with an opening function in which the opening is not opened and the opening is not narrowed during storage after opening.
[0006]
[Means for Solving the Problems]
That is, the present invention relates to a box-shaped plastic plug having a lid connected to be openable and closable via a thin hinge on a pouring cylinder wall behind the plug main body, the front side of a bottom plate of the plug main body. An opening is provided on the opening, and an upper horizontal plate, a lower middle inclined plate and a lower lower horizontal plate are continuous from front to rear, and are connected to the outer peripheral lower surfaces of the upper horizontal plate and the intermediate inclined plate. An opening blade is vertically provided, a left-right pressing plate is erected on the rear edge of the lower horizontal plate, and the rear end of the flat opening flap whose width gradually increases rearward is changed to the opening rear end of the bottom plate. And a sealing ring, which is in close contact with the spout cylinder wall of the plug body, and a stopper that abuts against the rear surface of the push plate of the opening flap of the plug body, on the lower surface of the top plate of the lid. This is a stopper with an opening function, wherein a push plate is vertically provided.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of a plug with an opening function according to the present invention will be described in detail with reference to the drawings.
FIG. 1A is a cross-sectional view of a plug with an opening function according to an embodiment of the present invention, and FIG. 1B is a cross-sectional view when the opening flap is depressed, and FIG. FIG. 4 is a cross-sectional view showing a state of the flap when the lid is closed on the plug body after opening. FIG. 2 is an enlarged cross-sectional view of a portion A in FIG. FIG. 3 is a plan view of the plug with opening function of FIG. 1, and FIG. 4 is an explanatory view showing the shape of the main part thereof.
[0008]
As shown in FIG. 1A, the plug with opening function (10) of the present embodiment has a lid (200) with a thin body hinge (111), and a plug body (100) with opening function. It is connected to the back of the outlet cylinder wall (110) so as to be openable and closable, and has a rectangular shape having a circular arc in front as shown in FIGS. 3 and 4, and as shown in FIGS. And a box-shaped plug with opening function (10). In addition, this plug with an opening function is usually manufactured integrally with a plug main body and a lid by an injection molding method using a thermoplastic resin such as polypropylene having a good hinge effect.
[0009]
As shown in FIG. 1A, the structure of the plug body (100) of the plug with opening function (10) of the present embodiment is provided with an opening (130) on the front side of the bottom plate (120). An upper horizontal plate (141), an intermediate inclined plate (142) and a lower horizontal plate (143) descending from the front continue from the front to the rear on the opening, and are connected to the outer peripheral lower surfaces of the upper horizontal plate and the intermediate inclined plate. The opening blade (145) is vertically extended, and a push plate (144) in the left-right direction is erected on the rear edge of the lower horizontal plate, and as shown in FIG. As shown in FIG. 1A, the rear end of the flap (140) is connected to the rear end of the opening (130) of the bottom plate (120) via a thin hinge (121).
[0010]
Then, as shown in FIG. 1A, the structure of the lid (200) is such that a sealing ring (211) is provided on the lower surface of the top plate (210) to be in close contact with the pouring cylinder wall (110) of the plug body (100). ), And the locking / push plate (213) which comes into contact with the rear surface of the push plate (144) of the opening flap (140) of the plug body is attached to the corresponding position inside the sealing ring (211). As shown in FIG. 1A, FIG. 3 and FIG. 4, on the lower surface of the top plate (210), it is vertically suspended in the left-right direction. If necessary, as shown in FIG. 2, an occlusal projection (212) is provided on the outer peripheral surface of the front end of the sealing ring (211) of the lid (200), and the plug body (100) is provided. An occlusal concave portion (112) may be provided on the inner peripheral surface of the tip of the injection cylinder wall (110) on the front side of the diaper, so that the dent bite can be appropriately and removably engaged. Further, in order to easily open and close the lid, an opening / closing protrusion may be provided at a front end of the lid.
[0011]
The opening function-equipped stopper of the above-described embodiment is bonded to the opening of the liquid paper container at the expected pouring hole where the perforations or cuts are sealed with a sealing film, and the lower surface thereof is bonded with an adhesive or the like. As shown in FIG. 1 (b), the plug with opening function is opened by rotating the lid (200) backward with the thin hinge line (111) as a branch line, and the plug body (100). When the push plate (144) erected at the rear end of the inside opening flap (140) is pushed down with a finger forward, the opening flap (140) is moved downward with the thin hinge (121) connected to the bottom plate (120) as a branch line. An opening blade (145) hanging on the upper horizontal plate (141) of the opening flap (140) and the outer peripheral lower surface of the intermediate inclined plate (142) is attached to the perforation or the lower surface at the expected pouring hole position. The sealing film is broken and the container is opened. The opening flap is to be folded almost at right angles to the bottom plate. The opening operation at the expected pouring hole position is to push down the push plate of the opening flap forward with a finger, and does not stain the finger with the contents. In addition, unlike the linear opening blade of the conventional opening function-equipped stopper, the opening blade of the opening flap of the opening function-equipped stopper of the present embodiment has a gradually increasing width from the front to the rear as shown in FIG. Because of the widening, the opening at the expected pouring hole becomes large.
[0012]
The folding of the opening flap does not need to be performed only by the push plate. First, the push flap (144) is slightly folded as shown in FIG. 1 (b). When (200) is closed, as shown in FIG. 1 (c), the tip of the locking and pushing plate (213) hanging on the lower surface of the top plate (210) of the lid is pushed by the pushing plate (144) of the opening flap (140). A) The pushing plate of the opening flap is pushed down to the front, and the opening flap is bent substantially at right angles to the bottom plate (120) to open the expected pouring hole position. This opening operation requires little force because it uses leverage.
[0013]
In addition, when the liquid paper container having the opening function-provided plug of the present embodiment protruding above the expected pouring hole position is not opened, the top plate of the lid (200) is opened as shown in FIG. (210) The rear surface of the locking and pushing plate (213) hanging on the lower surface abuts against the front surface of the pushing plate (144) of the opening flap (140) of the plug body (100), and the opening flap is folded downward. Rare things are locked. For this reason, it is possible to prevent the opening of the pouring hole scheduled position due to a malfunction during the distribution process. When the lid is closed again after opening, as shown in FIG. 1C, the tip of the locking and pushing plate (213) hanging on the lower surface of the top plate (210) of the lid (200) is connected to the plug body ( 100) is in contact with the front end of the rear surface of the push plate (144) of the opening flap (140) folded downward. Therefore, the folded open flap is prevented from returning, and the opening at the expected pouring hole position during storage is not narrowed.
[0014]
Also, the width of the thin hinge connecting the wide opening flap to the bottom plate behind the opening function-equipped plug of the present embodiment is such that the narrow opening flap behind the conventional opening function-equipped plug is attached to the spout cylinder wall. Unlike the width of the thin hinge to be connected, it has appropriate strength, and even if a vapor deposition film such as silicon oxide is used for the barrier layer of the sealing film that seals the expected position of the perforated hole with the perforations or cuts. The opening flap can be broken to open easily.
[0015]
【The invention's effect】
The plug with an opening function of the present invention is a liquid paper container in which a lid is openably and closably connected to the back of a plug body having a built-in opening function via a thin hinge, and is integrally molded with a thermoplastic resin. When used by bonding on the perforated hole or the perforated pouring hole planned position, the pouring hole planned position is sealed from the inner surface with a sealing film having a vapor deposited film such as silicon oxide as a barrier layer. Also, with the opening flap, the expected pouring hole position can be easily opened widely, the finger is not stained with the contents at the time of opening, and the pouring hole planned position is not opened due to malfunction during the distribution process, and The opening does not become narrow during storage after opening.
[Brief description of the drawings]
1A is a cross-sectional view of a plug with an opening function according to an embodiment of the present invention, FIG. 1B is a cross-sectional view when an opening flap is pushed down, and FIG. It is sectional drawing which shows the state of the flap when closing a lid | cover with a plug body later.
FIG. 2 is an enlarged sectional view of a portion A in FIG.
FIG. 3 is a plan view of the plug with opening function of the present invention in FIG. 1;
FIG. 4 is an explanatory view showing the shape of the main part of the plug with opening function of the present invention shown in FIG. 1;
5 (a) is a plan view of a conventional example of a plug with an opening function when the lid is opened, FIG. 5 (b) is a cross-sectional view thereof, and FIG. 5 (c) is a state where the opening flap is pushed down. FIG.
[Explanation of symbols]
10: Plug 100 with opening function ... Plug body 110 ... Spouting cylinder walls 111, 121, 161 Thin hinge 112 ... Occlusion recess 120 ... Bottom wall 130 ... Opening 140 ... Opening flap 141 ... Upper horizontal plate 142 Intermediate inclined plate 143 Lower horizontal plate 144 Push plate 145 Opening blade 150 Flange 160 Lid mounting wall 200 Lid 210 Top plate 211 Sealing ring 212 occlusal projection 213 locking and pushing plate

Claims (1)

A box-shaped plastic plug that connects the lid to be openable and closable via a thin hinge on the outlet cylinder wall behind the plug body, and an opening is provided on the front side of the bottom plate of the plug body, On the opening, an upper horizontal plate, a lower middle inclined plate and a lower lower horizontal plate are continuous from the front to the rear, and an opening blade is vertically attached to the outer peripheral lower surface of the upper horizontal plate and the intermediate inclined plate. A left-right push plate is erected on the rear edge of the lower horizontal plate, and the rear end of the flat opening flap whose width gradually increases rearward is connected to the rear end of the opening of the bottom plate via a thin hinge. On the lower surface of the top plate of the lid, a sealing ring that is in close contact with the pouring cylinder wall of the plug body and a locking and pushing plate that comes into contact with the rear surface of the pushing plate of the opening flap of the plug body are vertically provided. A mouth stopper with an opening function.

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