JP2004268960A - Plug with unsealing function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plug with an unsealing function capable of easily and completely breaking a sealing film even if a barrier layer of the sealing film for a spout hole with perforations or a cut of a paper-made container for a liquid is a vapor deposition film such as silicon oxide. <P>SOLUTION: The plug is structured by connecting a lid with a rear peripheral wall (110) of a plug body (100) via a thin hinge line (101) so that it can be opened/closed, and providing an opening (130) in the front of a base plate (120) of the plug body. The plug has an unsealing projection (141) above the opening, hanging from the front toward outer peripheral lower surfaces on both right and left sides, a rear side end of an unsealing flap (140) having a slide contact surface on the upper surface in the rear connected with the base plate at the rear side end of the opening via a thin hinge line, and a drawing slit (121) with a lateral width of the unsealing flap. The plug is also equipped with a pair of opposite supporting poles (151) standing on a base plate of the drawing slit and a slide contact circular rod is straddled at the upper end positions between the poles. A separate control member (300) with a slide contact mounting part (330) hanging on a lower surface of a front side rim of a control part (320) is rotatably mounted on the circular rod (152). <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a spout having an opening function, which is used by bonding a perforation or a cut of a liquid paper container to a pouring hole scheduled to be sealed from the inner surface with a sealing film.
[0002]
[Prior art]
Conventionally, at the center of at least the center of a liquid paper container formed of a laminated sheet mainly composed of paper, a predetermined perforated hole or a cutout hole is sealed with a sealing film adhered from the inner surface. The plug to be used by being adhered to the expected pouring hole position is a plug with an opening function (10) having an opening function of breaking the sealing film, for example, as shown in FIGS. 4 (a) and 4 (b). As shown in the figure, a lid portion (200) is openably and closably connected to the back of the plug body (100) via a thin hinge line (101), and is opened downward at an opening (130) of the plug body. An opening portion (162) having a protrusion (163) and an opening function portion (160) connecting the operating portion (164) to the rear of the opening portion via a thin hinge line (161) are provided on both sides below the operating portion. And a hinge pin (165) is protruded and connected to form an integral Opening feature with spout (10) is known with (e.g., see Patent Document 1). When this plug with an opening function is used by being adhered to a pouring hole scheduled position sealed with a sealing film of a liquid paper container, the container is opened as shown in FIGS. 4 (a) to 4 (e). 4 (a) and 4 (b), the lid (200) is opened rearward with the thin hinge line (101) as a branch line, as shown in FIGS. 4 (c) and 4 (d). When the operation unit (164) of the opening function unit (160) is rotated upright using the hinge pin (165) as a rotation axis, the opening protrusion (163) provided below the opening unit (162) causes The sealing film sealing the expected pouring hole position of the container is broken, and the container is opened. Then, as shown in FIG. 4E, when the operation unit (164) is returned to the original horizontal state rearward, the thin hinge line (161) provided between the operation unit and the unsealing portion (162). It bends and remains with the opening part hanging down substantially vertically.
[0003]
[Patent Document 1]
JP 10-59399 A
[Problems to be solved by the invention]
By the way, an aluminum foil layer is generally used as a barrier layer in a sealing film for sealing a predetermined perforated hole or a pouring hole position of a conventional liquid paper container. This aluminum foil layer has an excellent barrier property against oxygen, water vapor, etc., but as a waste treatment after use, residual residues remain at the time of incineration, it is difficult to reuse, and there is a problem unfavorable for environmental conservation. . Therefore, a vapor-deposited film obtained by vapor-depositing a metal such as silicon oxide or a metal oxide on a polyethylene terephthalate film has come to be used as a barrier layer. However, a sealing film using a vapor-deposited film for the barrier layer requires a breaking force as compared with a conventional sealing film using an aluminum foil for the barrier layer. In the above-mentioned conventional plug with the opening function, which is connected via a wire and integrally formed by connecting the opening function part to the plug body with a hinge pin, the structural strength is weak and the breaking force is small, so that the sealing is performed. Sometimes the film was difficult to break.
[0005]
The present invention solves the above-mentioned problem of the conventional plug with an opening function, and a silicon oxide is used as a barrier layer of a sealing film for sealing a perforated pouring hole having a perforation or a cut in a liquid paper container. An object of the present invention is to provide a plug with an opening function that can easily and completely break a sealing film even when a vapor deposition film such as this is used.
[0006]
[Means for Solving the Problems]
That is, the present invention relates to a box-shaped plastic plug that connects a lid to a peripheral wall behind the plug main body via a thin hinge line so that the lid can be opened and closed, and the plug is provided on the lower surface of the top plate of the lid. A sealing ring with the main body is vertically installed, an opening is provided on the front side of the bottom plate of the plug main body, and an opening projection having an opening projection at the lower end is provided above the opening on the outer lower surface on both the left and right sides from the front. The rear end of the opening flap, which is continuously provided vertically and has a sliding contact surface on the rear upper surface, is connected to the bottom plate at the rear end of the opening via a thin hinge line. In the bottom plate at the adjacent position, a left and right width slit for the opening flap is provided in the left and right direction, and a pair of opposing support columns are erected on the bottom plate on both the left and right sides of the slit, and the upper end position between the support columns A mounting rod is erected by bridging a sliding rod to the mounting rod. A separate operating member comprising a sliding contact tip portion on the side and a rear operating portion, and a sliding contact mounting portion hanging from a lower surface of a front side edge of the operating portion, is rotatably mounted. This is a plug with an opening function.
[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 showing the structure of a plug with an opening function according to an embodiment, and FIG. 1B is a plan view when the lid is opened, and FIG. FIG. 9 is an explanatory diagram showing a state of the unsealing portion when the operation member is operated. FIG. 2 is an enlarged sectional view of a portion A in FIG. FIG. 3 is an exploded explanatory view showing a configuration of the plug with an opening function in FIG. 1.
[0008]
As shown in FIG. 3, the plug with opening function (10) according to the present embodiment connects the lid (200) to the rear peripheral wall (110) via a thin hinge line (101) so as to be openable and closable. The front part has a circular arc shape, and has two members, a box-shaped plug body (100) and an operation member (300), both left and right sides and a straight line on the rear side. The operation member is attached to the plug body. The cap body with the lid is usually made by injection molding using a thermoplastic resin such as polypropylene having a good hinge effect, and the operating member is also usually made of a thermoplastic resin such as polypropylene having a moderate rigidity. Is produced by an injection molding method.
[0009]
As shown in FIGS. 1A and 1B, the structure of the plug with opening function (10) of the present embodiment is such that the plug body (100) is provided on the lower surface of the top plate (210) of the lid (200). A sealing ring (211) that closely contacts the outer peripheral surface is provided vertically on the inner peripheral surface of the upper end of the peripheral wall (110). If necessary, as shown in FIG. 2, an occlusal convex portion (212) is provided on the outer peripheral surface of the front end portion of the sealing ring (211) of the lid portion (200), and the plug body (100) is closed. An occlusal recess (111) may be provided on the inner peripheral surface of the distal end portion of the front side peripheral wall (110) so that it can be removably and appropriately occupied. Further, in order to easily open and close the lid, an opening / closing protrusion may be provided at a front end of the lid.
[0010]
Then, as shown in FIGS. 1 (a) and (b), as shown in FIGS. 1 (a) and 1 (b), an opening (130) is provided in front of the bottom plate (120) of the plug body (100). And an opening flap (140) connected above the opening to the rear end of the opening of the bottom plate via a thin hinge line (102). An opening projection (at the lower end of the opening flap), which is continuous with the outer peripheral lower surface on both the left and right sides of the opening flap and has an opening projection for breaking a sealing film at a pouring hole scheduled position having a perforation or a cut in the liquid paper container. 141), a step is provided on the upper surface on the rear side to form a horizontal sliding contact surface (142) which is in sliding contact with the sliding contact tip (310) of the operating member (300), and the rear of this sliding contact surface is formed. On the side, as shown in FIG. 1C, a contact surface (143) which inclines downward and comes into contact with the sliding contact tip (310) of the operation member (300) is provided. As shown in FIG. 1 (a), the bottom plate (120) at a position adjacent to the rear side of the thin hinge line (102) is provided with a cutout slit (121) having a width of the opening flap in the left and right direction. A pair of opposing support columns (151) are erected on the bottom plates on the left and right sides, and a sliding contact bar (152) is bridged at the upper end position between the support columns to mount the mounting base (150). Is what you do. The punching slit (121) is necessary for pulling out the mold block forming the upper sliding contact bar (152) when the plug body (100) is injection-molded.
[0011]
Then, as shown in FIG. 3, the sliding contact tip (310) and the rear operating part (320) are attached to the sliding contact rod (152) of the mounting base (150) of the plug body (100). ) And a separate operating member (300) composed of a sliding contact mounting portion (330) on the lower surface are rotatably mounted. The sliding contact mounting portion of the operation member is provided with an occlusal sliding contact groove (331) that removably slidably engages with the sliding contact round bar of the mounting base portion of the plug body.
[0012]
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 (c), the plug with opening function is opened by rotating the lid (200) backward with the thin hinge line (101) as a branch line, and the plug body (100) is opened. When the operation part (320) of the operation member (300) in the parenthesis is raised forward, the operation member is slid in contact with the round bar (152) of the mounting base (150) standing upright on the bottom plate (120) of the plug body. , The front end portion (310) of the operating member slides on the sliding surface (142) of the opening flap (140), and the opening flap moves downward with the thin hinge line (102) as a branch line. Folded. At this time, the opening protrusion at the lower end of the opening protrusion (141) that is continuously provided on the left and right sides from the front side of the opening flap seals the expected pouring hole position of the liquid paper container. The film breaks and the container opens widely. The forward rotation of the operating member stops at a position where the sliding contact tip of the operating member abuts on the inclined abutting surface (143) of the opening flap. At this time, the opening flap hangs substantially perpendicularly to the bottom plate (120) with the thin hinge line (102) as a branch line. Then, the operation unit of the operation member is tilted rearward to return to the original horizontal state. The opening flap remains vertically suspended. After the contents are poured out, the lid is closed by rotating the lid forward with the thin hinge line (101) as a branch line, and the plug is sealed.
[0013]
As shown in FIG. 4 (b), the conventional plug with opening function (10) connects an opening section (162) and an operation section (164) via a thin hinge line (161). (160) is connected to the plug main body (100) with the hinge pin (165) and is integrally molded, and it is difficult for the opening function section (160) to have strength. As shown in FIGS. 1 (a) and 3, the spigot plug (10) has a thin hinge line (102) at the rear end of the opening flap (140) at the rear end of the opening (130) of the bottom plate (120). And a pair of support columns (151) opposed to each other at left and right positions are provided on a bottom plate (120) at a position adjacent to the rear side of the thin hinge line (102), and an upper end position between the support columns is provided. A round bar (152) is erected on the base and a mounting part (150) is erected. A separate operating member (300) consisting of a front sliding contact tip (310) and a rear operating part (320) is attached to the sliding contact round bar of the attachment part by a sliding contact mounting part (330) on the lower surface. ), So that the opening flap (140) of the plug body (100) and the operating member (3009) separate from the mounting base (150) can easily have appropriate strength structurally. For this reason, the spout with the opening function of the present embodiment, which is adhered onto the expected pouring hole position of the liquid paper container, can operate the operating member to set the perforated pouring hole position having perforations or cuts. Even if a vapor deposition film such as silicon oxide is used for the barrier layer of the sealing film to be sealed, the sealing film can be easily and completely broken by the opening flap.
[0014]
【The invention's effect】
ADVANTAGE OF THE INVENTION The stopper with the opening function of this invention makes it easy to give an opening function part appropriate intensity | strength structurally, and seals the perforated pouring hole scheduled position which has a perforation or a cut of a liquid paper container. The film has a strong breaking force and can be easily and completely broken even if a vapor deposited film such as silicon oxide is used for the barrier layer of the sealing film.
[Brief description of the drawings]
FIG. 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 plan view when a lid is opened, and FIG. 1C is an operation member. It is an explanatory view showing a state of an opening part at the time of having operated.
FIG. 2 is an enlarged sectional view of a portion A in FIG.
FIG. 3 is an exploded explanatory view showing a configuration of the plug with an opening function in FIG. 1;
FIG. 4 is an explanatory diagram showing an operation state in operation of an opening function section of a conventional example of a plug with an opening function.
[Explanation of symbols]
10 Plug 100 with opening function Plug main body 101, 102, 161 Thin hinge line 110 Peripheral wall 111 Bite recess 120 Bottom plate 121 Draft space 130 Opening 140 Opening flaps 141 and 163 Opening protrusion 142 Sliding contact surface 143 Inclined contact surface 150 Mounting base 151 Support post 152 Sliding contact round bar 160 Opening function 162 Opening parts 164, 320 Operating part 165 Hinge pin 200 Lid part 210 Top plate 211 Sealing ring 212 Engaging convex part 300 Operating member 310 Sliding contact tip part 330 Sliding attachment part 331 ... Occlusion sliding contact groove

Claims (1)

A box-shaped plastic plug that connects the lid to the peripheral wall at the rear of the plug body via a thin hinge line so that the lid can be opened and closed, and a sealing ring with the plug body on the lower surface of the top plate of the lid. An opening is provided on the front side of the bottom plate of the plug body, and an opening projection having an opening projection at the lower end is continuously provided on the outer peripheral lower surface on both the left and right sides from the front above the opening. The rear end of the opening flap having a sliding contact surface on the rear upper surface is connected to a bottom plate at the opening rear side end via a thin hinge line, and to a bottom plate adjacent to the rear side of the thin hinge line, In the left and right direction, a punching slit of the opening width of the opening flap is provided, and a pair of supporting columns opposed to each other are erected on bottom plates on both left and right sides of the punching slit. The bridge is erected and the mounting base is erected, and the sliding bar at the mounting base is operated with the front sliding end and the rear side. From now, the operation of the front-side edge of the another of the operating member for vertical setting the sliding contact mounting portion on the lower surface, rotatably opening feature with spout, characterized in that attached.

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