JP2004067195A - Spout plug and packaging container for liquid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spout plug which can be easily removed from an unsealing blade, can be unsealed along the function even when the discharging port plug is not accurately arranged at the position of a discharging hole, and can be manufactured at a stable high working ratio in the processes of the manufacture of a packaging material, the packaging-filling of a container, and the bonding of the spout plug to the container, and a packaging container for a liquid. <P>SOLUTION: For this spout plug, a first engaging fin which transmits a rotating force of the unsealing blade is vertically provided from the lower surface of the top board of a cap, on the cap. The unsealing blade is equipped with a cylindrical part, a protruding blade which is provided at the lower center of the cylindrical part, and a tapered part. On the inner peripheral surface of the cylindrical part of the unsealing blade, a second engaging fin is vertically provided from the top to the bottom. The tapered part has a steep slope and a gentle slope, and the diameter of the discharging hole is constituted to be smaller than the inner diameter of a spout discharging cylinder. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a spout and a liquid packaging container.
[0002]
[Prior art]
A spout provided in the spout hole of the liquid paper container sealed with a breakable sealing film, a cap covering the spout, and a spout built into the spout. The spout stopper and the packaging container for the liquid comprising an opening blade which moves downward are, for example, Japanese Utility Model Laid-Open Nos. 60-62027, 63-86021, 63-86022, 63-169425, and 63-169425. 63-169427, 63-169428, 63-190034, 63-194153, 63-1978620, 63-197628, 63-197828, 63-202649, 63-202649, 63 63-202650, Hira 01-2728, Hira 01-2729, Hira 01-9128, Hira 01-11930, Hira 01-2347 5, HEI 01-66324, HEI 01-35827, HEI 01-35828, HEI 01-47652, HEI 01-122429, HEI 01-126925, HEI 02-1627, HEI 03-8130, Japanese Utility Model Laid-Open No. 03-114722, JP-A-06-92353, JP-A-08-183555, JP-A-09-1225, JP-A-10-139957, JP-A-10-194276, JP-A-10-245064, JP-A-10-273167, JP-A-10-273167 11-115962, JP-A-11-130121, JP-A-11-130122, JP-A-11-139449, JP-A-11-227817, JP-A-11-222231, JP-A-2000-264359 and the like are known. I have.
[0003]
[Problems to be solved by the invention]
A spout provided in the spout hole of the liquid paper container sealed with a breakable sealing film, a cap covering the spout, and a spout built into the spout. The spout and its liquid packaging container, which consist of a downwardly moving opening blade, must be easily detachable and removable from the associated opening blade immediately after opening.
Unless the spout plug is accurately arranged at the position of the spout hole of the liquid paper container sealed with the breakable sealing film, the opening according to the function cannot be performed. Accurate placement requires accurate positioning of the spout of the liquid paper container and accurate splicing of the spout plug in the manufacturing process.
It is desired that even a weak consumer such as a child can easily and easily open the spout stopper.
The present invention meets the above-described needs and desires, and can be easily removed from an opening blade immediately after opening, and a spout outlet plug is not accurately arranged at a position of a spout hole of a liquid paper container. Can be opened according to the function, and can be implemented at a stable and high operation rate in the process of manufacturing packaging materials, packing and filling containers, and joining spouts to containers. The purpose is to provide.
[0004]
[Means for Solving the Problems]
In order to solve this problem, the spout plug and the liquid packaging container according to the present invention are arranged such that a first engaging fin that transmits a rotational force to an opening blade is provided on the cap vertically from the lower surface of the top plate of the cap, and the opening blade has A cylindrical portion, a protruding blade provided at a lower center of the cylindrical portion, and a tapered portion; a second engaging fin vertically provided on an inner peripheral surface of the cylindrical portion of the opening blade; a tapered portion having a steep slope and a gentle slope; And the diameter of the pouring hole is smaller than the inner diameter of the spout pouring cylinder.
As a result, it can be easily removed from the opening blade immediately after opening, and the opening can be performed according to the function without the need to accurately dispose the spout stopper at the position of the spout hole of the liquid paper container, and the production of the packaging material. In the process of packing and filling the container and joining the spout to the container, a spout and a liquid packaging container that can be manufactured at a stable and high operation rate can be obtained.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
The invention according to claim 1 of the present invention is provided in a spout hole of a liquid paper container sealed with a breakable sealing film, a spout comprising a spout cylinder and a base, and a cap covering the spout. And an opening blade built in the spout and moving downward and upward spirally in conjunction with the spiral vertical movement of the cap,
In the cap, a plurality of first engaging fins that transmit a rotational force to the opening blade are provided substantially vertically from a top plate lower surface of the cap,
On the inner peripheral surface of the cap and the outer peripheral surface of the spout pouring cylinder, screw portions are provided, respectively, which spirally move the cap up and down when the cap is opened and closed.
The opening blade is screwed with a screwing portion provided on the inner peripheral surface of the spout discharge tube, and the screwing portion moves upward and downward in a spiral in conjunction with the spiral vertical movement of the cap. A cylindrical portion having an outer peripheral surface, a projection blade provided at a lower center of the cylindrical portion, and a tapered portion having a liquid through-hole that supports the projection blade from the lower edge of the cylindrical portion and has a liquid through hole.
The cap engages with the engaging fins of the cap vertically and vertically with respect to the inner peripheral surface of the cylindrical portion of the opening blade, and transmits the rotational force from the cap to the opening blade when the cap is spirally moved upward. A second engaging fin that is not securely engaged during the spiral downward movement of the cap, the tapered portion continuously or discontinuously extends from the lower edge of the cap cylindrical portion to the protruding blade, and forms a steep slope and a gentle slope. It is characterized by having.
[0006]
The invention according to claim 2 has a spout hole sealed at the top with a breakable sealing film, and covers the spout provided in the spout hole and composed of a spout cylinder and a base, and the spout. What is claimed is: 1. A liquid packaging container having a spout, which is comprised of a cap and an opening blade built in the spout and spirally moving upward and downward in conjunction with the spiral vertical movement of the cap, wherein the cap includes the opening A plurality of first engagement fins for transmitting a rotational force to the blade are provided substantially perpendicularly from the top plate lower surface of the cap,
On the inner peripheral surface of the cap and the outer peripheral surface of the spout pouring cylinder, screw portions are provided, respectively, which spirally move the cap up and down when the cap is opened and closed.
The opening blade is screwed with a screwing portion provided on the inner peripheral surface of the spout discharge tube, and the screwing portion moves upward and downward in a spiral in conjunction with the spiral vertical movement of the cap. A cylindrical portion having an outer peripheral surface, a projection blade provided at a lower center of the cylindrical portion, and a tapered portion having a liquid through-hole that supports the projection blade from the lower edge of the cylindrical portion and has a liquid through hole.
The cap engages with the engaging fins of the cap vertically and vertically with respect to the inner peripheral surface of the cylindrical portion of the opening blade, and transmits the rotational force from the cap to the opening blade when the cap is spirally moved upward. A second engaging fin that is not securely engaged during the spiral downward movement of the cap, the tapered portion continuously or discontinuously extends from the lower edge of the cap cylindrical portion to the protruding blade, and forms a steep slope and a gentle slope. Have
The diameter of the pouring hole is smaller than the inner diameter of the spout pouring cylinder.
[0007]
The present invention having the above configuration operates and functions as follows.
The liquid packaging container according to the present invention has a pouring hole at the top sealed with a breakable sealing film. The container is formed from a laminated packaging material such as paper, and the packaging material is perforated at the top of the container to form an ejection hole. The pouring hole is sealed with a barrier plastic film or the like.
The base of the spout is joined to the top of the container near the spout hole to fix and support the spout to the container. The spout dispensing cylinder forms a passage for dispensing the liquid of the container contents.
The opening blade is built into the spout, and moves downward spirally in conjunction with the upward spiral movement when the cap is opened. As a result, the opening blade breaks the breakable sealing film of the pouring hole.
[0008]
The cap covers the spout and protects the spout hole, and the rotational movement of the cap at the time of opening creates a film breaking force of the opening blade. The cap is provided with a plurality of first engaging fins. The first engaging fin is provided substantially vertically from the lower surface of the top plate of the cap, and transmits a rotational force to the opening blade.
On the inner peripheral surface of the cap and the outer peripheral surface of the spout discharge tube, a screwing portion to be spirally moved up and down, that is, a screw or a screw-shaped ridge / groove is provided. By rotating the cap, the cap slides up and down spirally along the threaded portion. Cap can be opened and closed.
The spout has a threaded portion provided on the inner peripheral surface of the spout cylinder. The opening blade is screwed together with the screwing portion and the screwing portion on the outer peripheral surface of the cylindrical portion. The screwing causes the cap to move upward and downward spirally in conjunction with the spiral vertical movement of the cap. In other words, the rising of the cap lowers the opening blade. First, the projection blade provided at the lower center of the cylindrical portion easily breaks one point near the approximate center of the sealing film of the pouring hole.
The tapered portion mechanically supports the protruding blade from the lower edge of the cylindrical portion and has a liquid through-hole, so that the liquid in the container content passes when the container is poured out after opening. The tapered portion has a steep slope and a gentle slope continuously or discontinuously from the lower edge of the cap cylinder to the protruding edge. This tapered portion enlarges the break of the film by the gentle slope after the first break of the protruding blade, and presses the end of the pouring hole inward by the steep slope to further increase the pouring area. In addition, due to the pressing and bending, the broken film pieces obstructing the outflow of the liquid can also be pushed away.
[0009]
A second engaging fin vertically provided on the inner peripheral surface of the cylindrical portion of the opening blade engages with the engaging fin of the cap when the cap is spirally moved to transmit a rotational force from the cap to the opening blade. However, it does not engage reliably during the helical downward movement of the cap. As a result, at the same time as the cap is rotated upward during opening, the opening blade is surely rotated downward, and the film is broken. When the opening is completed and the cap is detached from the spout, the first engaging fin and the second engaging fin are both provided vertically and vertically, so that the opening blade is engaged with the spout or the container by any chance. Even if both, both are easily separated up and down.
The diameter of the spout hole is smaller than the inner diameter of the spout spout cylinder. Therefore, as long as the central protruding blade of the unsealing blade is positioned in the film of the spouting hole, the unsealing function can be easily exerted, so that it is not necessary to accurately position the spout.
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 5.
[0010]
(Embodiment 1)
FIG. 1 is an exploded side view showing a spout according to an embodiment of the present invention. In FIG. 1, the spout is provided in the spout hole 21 of the liquid paper container sealed with the breakable sealing film 20, and covers the spout 1 composed of the spout cylinder 1a and the base 1b, and the spout 1. It comprises a cap 2 and an opening blade 3 built in the spout 1 and moving downward and upward in a spiral in conjunction with the spiral vertical movement of the cap 2.
FIG. 3 is a partially omitted exploded perspective view of the spout of this embodiment.
The cap 2 is provided with a plurality of (four) first engagement fins 2 a that transmit the rotational force to the opening blade 3, substantially perpendicular to the lower surface of the top plate of the cap 2.
Threads are provided on the inner peripheral surface of the cap 2 and the outer peripheral surface of the spout 1a of the spout 1 to spirally move the cap up and down when the cap is opened and closed.
The opening blade 3 is screwed with a screwing portion provided on the inner peripheral surface of the spout tube 1a of the spout 1 to move downward and upward spirally in conjunction with the spiral vertical movement of the cap 2. Cylindrical portion 3a having an outer peripheral surface, a protruding blade 3b (not shown in FIG. 3) provided at the lower center of the cylindrical portion, and supporting the protruding blade 3b from the lower edge of the cylindrical portion 3a and penetrating the liquid. A tapered portion 3c having a hole (not shown in FIG. 3).
[0011]
The cap engages with the engaging fins 2a of the cap vertically and vertically with respect to the inner peripheral surface of the cylindrical portion of the opening blade 3 to transmit the rotational force from the cap 2 to the opening blade 3 when the cap 2 is moved upward in a spiral shape, so that the cap is closed. A second engagement fin 3d is provided which does not reliably engage during the spiral downward movement. As shown in FIG. 5, which is a schematic front view of the opening blade, in this embodiment, four fins 3d are formed.
FIG. 2 is an exploded sectional view of the spout of this embodiment.
The tapered portion 13c has a steep slope 3c1 and a gentle slope 3c2 discontinuously in this embodiment, extending from the lower edge of the cap cylindrical portion 3a to the projection blade 3b.
[0012]
The function of the spout of this embodiment will be described.
FIG. 4 is a schematic sectional view for explaining the opening operation of the spout. FIG. 5 is a schematic front view of the opening blade.
The opening blade 3 is built in the spout 1 and moves downward spirally in conjunction with upward spiral movement when the cap 2 is opened. As a result, the opening blade 3 breaks the sealing film 20 of the pouring hole.
That is, as the cap 2 is raised, the opening blade 3 is lowered. First, the projection blade 3b provided at the lower center of the cylindrical portion 3a easily breaks one point near the approximate center of the sealing film 20 of the pouring hole.
The tapered portion 3c mechanically supports the projection blade 3b and has a liquid through-hole 3e. The liquid in the container content passes through the liquid through-hole 3e at the time of pouring after opening. The tapered portion 3c has a steep slope and a gentle slope discontinuously. After the first breakage of the projection blade 3b, the tapered portion 3c enlarges the break of the film by a gentle slope, pushes the end of the pouring hole inward by the steep slope, further expands the pouring area, The bending also displaces the broken film pieces that obstruct the outflow of liquid.
[0013]
The second engaging fins 3d vertically provided on the inner peripheral surface of the cylindrical portion 3a of the opening blade 3 are engaged with the engaging fins 2a of the cap at the time of the helical movement of the cap to open the rotational force from the cap. Transmission to the blade. However, it does not engage reliably during the helical downward movement of the cap. At the same time as the cap 2 rotates upwardly during opening, the opening blade 3 surely rotates downward to break the film. When the opening is completed and the cap 2 is detached from the spout 1, the first engaging fin 2a and the second engaging fin 3d are both provided vertically, so that the opening blade 3 is engaged with the spout 1 or the container. Even if they do, both will easily disengage up and down.
The diameter of the discharging hole 21 is smaller than the inner diameter of the spout 1 discharging cylinder. Therefore, as long as the central protruding blade of the unsealing blade is positioned on the film of the pouring hole, the unsealing function can be easily exhibited. In this embodiment, there is no need to accurately position the spout.
[0014]
【The invention's effect】
As described above, according to the present invention, the following advantageous effects can be obtained.
The opening can be performed according to the function even if the spout plug is not accurately arranged at the position of the spout hole of the liquid paper container.
In the production of the packaging material and the packaging and filling process of the container, it can be produced at a stable and high operation rate.
In the joining step of the spout plug to the container, joining can be performed at a stable and high operation rate.
It can be easily removed from the opening blade immediately after opening.
[Brief description of the drawings]
FIG. 1 is an exploded side view showing a spout according to an embodiment of the present invention; FIG. 2 is an exploded sectional view of the spout according to the embodiment; FIG. Exploded perspective view FIG. 4 is a schematic cross-sectional view illustrating an opening operation of a spout according to an embodiment of the present invention. FIG. 5 is a schematic front view of an opening blade of the spout according to the embodiment. ]
1 ・ ・ ・ Spout 2 ・ ・ ・ Cap 3 ・ ・ ・ Opening blade

Claims (2)

A spout provided in the spout hole of the liquid paper container sealed with a breakable sealing film, the spout comprising a spout cylinder and a base, a cap covering the spout, and a spiral built in the spout, An opening blade that spirally moves up and down in conjunction with the up and down movement,
In the cap, a plurality of first engaging fins that transmit a rotational force to the opening blade are provided substantially vertically from a top plate lower surface of the cap,
On the inner peripheral surface of the cap and the outer peripheral surface of the spout pouring cylinder, screw portions are provided, respectively, which spirally move the cap up and down when the cap is opened and closed.
The opening blade is screwed with a screwing portion provided on the inner peripheral surface of the spout discharge tube, and the screwing portion moves upward and downward in a spiral in conjunction with the spiral vertical movement of the cap. A cylindrical portion having an outer peripheral surface, a projection blade provided at a lower center of the cylindrical portion, and a tapered portion having a liquid through-hole that supports the projection blade from the lower edge of the cylindrical portion and has a liquid through hole.
The cap engages with the engaging fins of the cap vertically and vertically with respect to the inner peripheral surface of the cylindrical portion of the opening blade, and transmits the rotational force from the cap to the opening blade when the cap is spirally moved upward. A second engaging fin that is not securely engaged during the spiral downward movement of the cap, the tapered portion continuously or discontinuously extends from the lower edge of the cap cylindrical portion to the protruding blade, and forms a steep slope and a gentle slope. An outlet spout characterized by having. A spout having a spout formed on the spout, the spout comprising a spout cylinder and a base, a cap covering the spout, and a cap built into the spout and provided in the spout. A liquid packaging container having a spout plug comprising an opening blade that spirally moves up and down in conjunction with the spiral up and down movement of the liquid,
In the cap, a plurality of first engaging fins that transmit a rotational force to the opening blade are provided substantially vertically from a top plate lower surface of the cap,
On the inner peripheral surface of the cap and the outer peripheral surface of the spout pouring cylinder, screw portions are provided, respectively, which spirally move the cap up and down when the cap is opened and closed.
The opening blade is screwed with a screwing portion provided on the inner peripheral surface of the spout discharge tube, and the screwing portion moves upward and downward in a spiral in conjunction with the spiral vertical movement of the cap. A cylindrical portion having an outer peripheral surface, a projection blade provided at a lower center of the cylindrical portion, and a tapered portion having a liquid through-hole that supports the projection blade from the lower edge of the cylindrical portion and has a liquid through hole.
The cap engages with the engaging fins of the cap vertically and vertically with respect to the inner peripheral surface of the cylindrical portion of the opening blade, and transmits the rotational force from the cap to the opening blade when the cap is spirally moved upward. A second engaging fin that is not securely engaged during the spiral downward movement of the cap, the tapered portion continuously or discontinuously extends from the lower edge of the cap cylindrical portion to the protruding blade, and forms a steep slope and a gentle slope. Have
A beverage packaging container, wherein a diameter of the spout hole is smaller than an inner diameter of the spout spout cylinder.

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