JP2013107673A - Plug for container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To permit a fact that a closing plate also can be unsealed by one action when a cap is opened, thereby holding virgin properties, unsealing is performed without opening the cap completely to suppress a problem that a liquid of a content splashes, and unsealing is performed without drawing a spout ring so as not to cause a problem in a small spout ring for a small bore as well.SOLUTION: In a plug for a container which is composed of: a mouth provided with a cylindrical discharging port and a fused fringe; and a cap which is composed of a fixing part and a top face, and fits into the other end of the discharging port of the mouth which has a discharging port closing part linked to the discharging port by a thin fragile line, and a pole vertically and continuously provided on a discharging port closing face below the cylindrical discharging port. The cap has a mechanism engaged with the pole in the top face, and the plug for a container has a structure in which, the thin fragile line is fractured when the cap is opened, and the discharging port closing part is opened.

Description

  The present invention relates to a container stopper used for liquids such as juice, milk, liquor, tea, soy milk, tempura oil, containers for storing sugar, starch, coffee powder, tea leaves, and the like.

  Conventionally, in a liquid paper container used for liquid contents of food and non-food, considering the ease of use at the time of use, for example, as shown in FIG. A liquid paper container in which a cap made of a cap 1 and a spout 2 protrudes from an inclined plate 31 at the top of a gable roof has been used over a wide range of applications. This cap is made by screwing a cap onto a spout tube that protrudes from the cap mounting hole of the container. Normally, it is necessary to ensure completeness of sealing and virginity during distribution, or during use. For example, as shown in FIG. 12, a sealing port closing portion 4 is provided on the lower inner surface of the spout 2 on the inner side of the spout 2 so as to be sealed and opened during use. An annular notch 45 having a reverse V-shaped vertical cross section is provided at a predetermined position on the lower surface of the plate, and an annular thin line of weakness 43 is formed at a predetermined opening position on the upper surface. On the side, a support column having a spout ring 44 at the tip is erected, and when opening the cap to open the container, the cap 1 is removed and accommodated inside the spout tube of the spout 2. Hang your fingertips on the spout ring 44 Pulled, was not open tore the thin annular line of weakness 43 of pouring for the port closing unit 4. In addition, after discarding the spout closing part 4, the opened spout was re-sealed by screwing the cap onto the spout cylinder.

  However, such a spout is one that removes the screw cap at the time of opening, pulls the spout ring, cuts the annular thin line of weakness and opens it, and requires two actions: turning the cap and pulling the spout ring. It was. Further, since the spout ring is pulled after the cap is opened, there is a problem that the liquid of the contents splashes.

In order to solve the above problem, Patent Document 1 includes a cap base body, an inner lid that closes an opening of the cap base body, and an outer lid. The cap base body and the inner lid are openings of the cap base body. The cap base body and the outer lid are formed on the outer peripheral portion and the inner peripheral portion, respectively, through a thin wall portion provided between the inner edge of the portion and the outer peripheral edge of the inner lid. The outer lid and the inner lid are configured so as to be detachable by a screw groove structure. The outer lid is rotated along the screw groove and screwed into the cap base body, so that the inner lid has an outer peripheral wall portion. Is guided by the inner wall of the opening of the cap base body and pushed into the opening of the cap base body, and the thin wall portion is cut by this pushing, and after the thin wall portion is cut, A sealing structure that seals the lid and the inner lid is not formed. It is intended.
In this method, when the thin wall portion provided between the inner edge of the opening of the cap base body and the outer peripheral edge of the inner lid is closed, the thin wall portion or a fragment thereof may become the opening portion of the cap base body. There is a risk that it may be trapped between the inner edge and the outer peripheral edge of the inner lid, and it may enter the contents as a foreign object. Moreover, opening is very forceful, and there is a problem that it is difficult to open the inner lid easily. The closed state and the opened state are difficult to perform individually and are difficult to control quality, and many troubles are likely to occur.

Japanese Patent No. 2975670

When the cap 1 is opened, it is a first object of the present invention that a half cut of the closing plate 4 is cut and opened, and can be opened by a single operation, thereby maintaining virginity.
And it is the 2nd subject of this invention to make it possible to suppress the problem that the liquid of a content jumps by opening it in the state where a cap does not open completely.
It is a third object of the present invention to prevent the problem that it is difficult to put a finger for pulling even when a spout ring having a small diameter is opened without pulling the spout ring.
Next, it is a fourth object of the present invention to prevent tampering without using an external shrink film and to provide a peel band when tampering prevention is required.

  In order to achieve the above object, a spigot according to claim 1 of the present invention comprises a mouth provided with a cylindrical spout and a peripheral edge welded to the periphery of a spout for a container body at one end thereof, And a cap that fits to the other end of the spout at the mouth. The mouth has a spout and a thin wall at the bottom of the cylindrical spout. It is connected with a weak line, and is provided with a pouring port closing portion that closes the pouring port opening of the container body, and a column that is connected to the closing surface of the pouring port closing portion in a substantially vertical direction. A container mouth plug having a structure in which a top surface portion has a mechanism that engages with a pillar, and when a cap is opened, a thin fragile line is broken and a pouring port closing portion is opened.

  According to a second aspect of the present invention, there is provided a cap for a container characterized in that an inner ring that fits into the spout is provided inside the cap.

  Further, in the plug according to claim 3, the mechanism in which the column of the outlet closing portion and the top surface portion of the cap are engaged has a T-shape at the tip of the column, and the T-shaped engagement portion of the top surface portion. A container plug having a J-shaped hook that is hooked from both sides.

  Next, in the plug according to claim 4, the mechanism in which the column of the outlet closing portion and the cap top surface portion are engaged has a tenon shape at the tip of the column, and the tenon shape as the engagement portion of the top surface portion. A container plug having a dovetail-shaped hook to be fitted.

When the mouth of the present invention is used, when the cap 1 is opened, the half cut of the closing plate 4 is cut and opened, and can be opened by a single operation, whereby the virginity can be maintained.
Then, by opening the cap in a state where the cap is not completely opened, the problem of the content liquid splashing can be minimized.
In addition, since it can be opened without pulling the spout ring, it can be opened without causing a problem that it is difficult to put a finger for pulling even when the spout is small in the case of a small diameter.
Furthermore, tampering can be prevented without using an outer shrink film, and a peel band can be provided when tampering prevention is required.

It is the whole figure using the stopper of this invention, and is comprised by the main body 3 comprised with the base material which covered the stopper cap 1, the mouth 2, and the inner surface polyethylene of this invention. It is the figure which looked at the stopper of FIG. 1 from the side. The cap 1 includes a cap fixing portion 11, a cap top surface 12, a hinge 6 that connects them, and a sealing band 5 that breaks the thin-walled portions 51 and 52 when they are opened and opened to secure virginity. It has become. This sealing band may be omitted if virginity is not particularly required. FIG. 2 is a cross-sectional view of the spigot according to the first embodiment of the present invention, in which a column 41 of the outlet closing portion 4 of the mouth 2 is provided in a direction away from the hinge 6 side of the cap 1, and the mouth 2 and the cap 1 shows a state in which the fitting portion 42 at the tip of the column 41 of the outlet closing portion and the cap inner claw 14 are fitted. FIG. 2 is a cross-sectional view of a spigot according to the first embodiment of the present invention, in which the cap 1 is opened from the mouth 2 and the column 41 of the pouring port closing part 4 is pulled up. The thin fragile line 43 of the closing part is broken, and the pouring port closing part 4 is also open. It is sectional drawing of the mouthpiece which is 2nd Embodiment by this invention, The pillar 41 of the pouring mouth closing part 4 of the mouth 2 is provided in the hinge 6 side of the cap 1, and the mouth 2 and the cap 1 are pouring out. The fitting part 42 in the front-end | tip part of the pillar 41 of a mouth closing part and the state fitted by the cap inner nail | claw 14 are shown. In the cross-sectional view of the spigot according to the second embodiment of the present invention, the cap 1 is opened from the mouth 2 and the column 41 of the pouring port closing part 4 is pulled up. The thin fragile line 43 of the closing part is broken, and the pouring port closing part 4 is also open. It is sectional drawing of the stopper which is 3rd Embodiment by this invention, and is an example in which the cap inner nail | claw 14 of the stopper which is 1st Embodiment is united with the inner ring. It is sectional drawing of the stopper which is 4th Embodiment by this invention, and is an example with which the cap inner nail | claw 14 of the stopper which is 2nd Embodiment is united with the inner ring. The shape of the fitting portion 42 at the tip of the column 41 of the outlet closing portion 4 of the spout mouth 2 according to the present invention is a T-shaped fitting portion 421, and the claw 14 inside the cap 1 has the above T-shape. This is an example of a combined J-shaped hook 141. The fitting part 42 shape at the tip of the column 41 of the spout closing part 4 of the spout mouth 2 according to the present invention is a tenon-shaped fitting part 422, and the claw 14 inside the cap 1 has an ant shape that matches the tenon shape. This is an example of a hook 142 having a groove shape. It is an external view of the container which used the spout ring for the conventional screw type cap and spout. It is mouth part sectional drawing of the container which used the spout ring for the conventional screw type cap and spout.

  Hereinafter, the plug of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the stopper of the present invention is provided at the upper flat portion of the liquid paper container. The stopper itself is formed of a plastic such as polyolefin resin and melts around the hole opened in the liquid paper container. It is worn and fixed.
In the present invention, a paper-based container is mainly used. In this case, a container using a sheet provided with a fusible plastic resin layer such as polyethylene on the inner surface or inner / outer surface of the paper is used. Of course, a multilayer structure containing a metal layer such as aluminum or a glass thin film such as silicon oxide may be used in order to suppress gas barrier properties against oxygen and moisture permeation, and a plastic sheet without using paper. You can base it on.
The mouth plug is composed of a mouth 2 and a cap 1, the mouth 2 is fused to the container body 3, and the cap 1 is fitted to the mouth 2.

Basically, the mouth 2 is made of a material having a heat-sealing property that is fused to the innermost layer or the outermost layer of the container body 3 like low density polyethylene. The same material as that of the layer to be fused of the container body 3, an increased molecular weight, and excellent stress cracking resistance are preferable. For example, linear low-density polyethylene is available, but medium-density polyethylene, general-purpose low-density polyethylene, and high-density polyethylene may be used.
The material of the cap 1 is preferably a material that easily aligns crystalline molecules during molding, such as polypropylene. A polypropylene block type modified with polyethylene is preferred, but a random type polypropylene may also be used. As described above, a material different from that of the mouth 2 is basically selected as the material of the cap.

2 is a side view of the plug of FIG. 1, and FIG. 3 is a cross-sectional view of the plug. The cap 1 fitted to the mouth 2 has a cap fixing portion 11, a cap top surface 12, a hinge 6 that connects them, and a thin portion 51, 52 that breaks the thin portions 51 and 52 when they are opened and opened. It consists of a sealed band 5 that guarantees the sex.
The cap fixing portion 11 has a rib 16 that fits with a fitting rib 24 on the outer periphery of the mouth on the inner surface, and when the cap is opened, the cap is secured to the mouth and prevents the cap from falling off. Owed.

  The cap top surface 12 includes an inner ring 13 that circumscribes the inner surface of the spout 21 at the mouth 2, a contact ring 15 that contacts the tip of the spout 21, a fitting projection 17 that fits into the mouth when the cap is closed, and a cap. It has a hook 18 for lifting the cap in order to remove the fitting part from the mouth when opening. The inner ring 13 and the contact ring 15 are fitted to the mouth by applying a certain pressure to prevent the liquid contents from leaking out.

  The hinge 6 is a hinge that connects the cap fixing portion 11 and the top surface 12 of the cap with a width of several millimeters, and is rotatable around a thin place at one place. Even when a cap is molded mainly from polypropylene resin, a gate is provided on the top surface of the cap, and the resin is allowed to flow from a certain direction, so that the orientation of molecules can be easily aligned. In the stopper for the liquid paper container of the present invention, this hinge also serves as a lever for opening the outlet closing portion.

  When the sealing band 5 is not opened, the cap fixing part 11 and the cap top surface 12 are connected by the thin-walled parts 51 and 52 and fixed. Therefore, when this sealing band 5 is not cut, this container is unopened and has a role of ensuring virginity. Note that the sealing band 5 may not be provided when it is not necessary to check the virginity in appearance or when there is other virginity confirmation means such as a shrink film to be provided.

In the direction away from the hinge 6 side of the cap 1, a column 41 of the pouring port closing part 4 of the mouth 2 is provided.
This mouth is made of polyethylene or the like that can be heat-sealed in order to fuse the fusion piece 23 and the container body 3 together. In addition, the mouth 2 and the dispensing mouth closing part 4 are integrally formed. The mouth 2 and the outlet closing portion 4 are connected by a thin line of weakness 43. Although the thin fragile wire 43 is thin, hermeticity is required so that the liquid of the contents does not leak out. Therefore, it is necessary to provide the gate in the outlet closing portion 4 so that a pinhole cannot be formed by the resin flow.

  In the first embodiment in FIG. 3, the fitting portion 42 at the tip of the column 41 that fits in the cap inner claw 14 provided on the top surface 12 of the cap is in a T-shaped shape. I am doing. Since this fitting part 42 is undercut, this part is made into two pieces, and it is made into the metal mold | die extracted from a metal mold | die in multiple steps, and the shape of a product is also adjusted easily.

  The mouth 2 is fused by melting the inner surface of the container body 3 and the outer surface of the fusion piece 23. The inner surface of the container body 3 and the mouth 2 are preferably made of the same material. However, if the inner surface side heat-sealing resin layer of the container body 3 is 50 μm or more, preferably about 100 μm, the strength against dropping of the container can be maintained. The thickness of the fusion piece 23 at the mouth 2 is 400 μm or more, preferably about 600 μm to 1200 μm.

The cap top surface 12 includes an inner ring 13 that circumscribes the inner surface of the spout 21 of the mouth 2, a contact ring 15 that contacts the front end surface of the spout 21, a cap inner claw 14 that fits into the spout closing portion 4, and a cap A fitting projection 17 that fits into the mouth when the cap is closed, and a hook 18 that lifts the cap to remove the fitting portion from the mouth when the cap is opened. The inner ring 13 and the contact ring 15 are fitted to the mouth by applying a certain pressure to prevent the liquid contents from leaking out.

The direction of the cap inner claw 14 is preferably outward as shown in FIG. 3, but it may be inward if it is unavoidable in manufacturing the mold. If it is directed inward, it is easy to trigger opening of the pouring port closing portion 4, but there is a problem that it tends to come off in the middle of opening. However, this direction is also related to the size of the fitting white, the strength of the nail, and the softness.
From the state of FIG. 3, the sealing band 5 is removed, and the spout 18 on the top surface 12 of the cap is pulled up to open the pouring port closing portion 4. However, at the start of the opening, the inner ring 13 or the like Since it can be opened without opening, contents leaks are unlikely to occur.
Although the inner ring 13 and the cap inner claw 14 are illustrated independently, they may be integrated as long as the fitting is adjusted so that there is no problem with liquid leakage.

FIG. 4 shows that by removing the sealing band 5 of FIG. 3 and opening the top surface 12 of the cap, the fitting part 42 of the outlet closing part 4 fitted to the cap inner claw 14 is pulled. This is a state in which the thin fragile line 43 in the vicinity of the base column 41 is broken and opened.
The pouring port closing part 4 removed at the time of opening is used by removing it by hand.

FIG. 5 is a cross-sectional view of a mouth plug according to a second embodiment of the present invention. Unlike FIG. 3, the column 41 of the pouring mouth closing portion 4 of the mouth 2 is provided on the hinge 9 side of the cap 1. It is provided.
The direction of the claw 14 in the cap is also different from that of the first embodiment in that it faces the inside.
The second embodiment is characterized in that the thin fragile line 43 around the pouring port closing portion 4 is broken and opened with a smaller force than the first embodiment. On the mold, it is difficult to attach the parts outside the claw 14 inside the cap, so the pieces are separated and made independent. Take action such as

FIG. 6 shows that by removing the sealing band 5 of FIG. 5 and opening the top surface 12 of the cap, the fitting part 42 of the outlet closing part 4 fitted to the cap inner claw 14 is pulled. This is a state in which the thin fragile line 43 in the vicinity of the base column 41 is broken and opened.
The pouring port closing part 4 removed at the time of opening is used by removing it by hand.

  FIG. 7 shows a third example in which the inner ring 13 and the cap inner claw 14 in the first embodiment are integrated. In the case of this method, it is difficult to increase the strength of the nail, and the nail is easy to escape. Therefore, the rib is used to prevent the nail from escaping and to increase the strength.

  FIG. 8 shows a fourth example in which the inner ring 13 and the cap inner claw 14 in the second embodiment are integrated. In this method, too, it is impossible to increase the strength of the nail, so measures such as increasing the strength using ribs are taken.

FIG. 9 shows an example of the shape of the fitting portion 421 of the cap inner claw 141 and the dispensing port closing portion 4. The fitting portion 421 has a T shape, and the cap inner claw 141 has a J shape. . Two J-shaped claws are provided, and the fitting portion 421 is pulled to break the thin fragile wire 43.
In the first embodiment, the fitting is performed as described above, but in the case of the second embodiment, the direction of the cap inner claw 141 is inward, and the position of the fitting portion 421 rotates 180 degrees.

FIG. 10 shows another example of the shape of the cap inner claw 142 and the fitting portion 422 of the dispensing port closing portion 4. The fitting portion 422 has a tenon shape, and the cap inner claw 142 has a dovetail shape. doing. When the cap is closed and fitted, it is impossible to fit, so an R is provided at the tip of the cap inner claw 142 to facilitate the fitting.
The shape of the cap inner claw 14 and the shape of the fitting portion 42 are not limited to the combination of the T shape and the J shape, the tenon shape, and the dovetail shape. A combination of wedges is also possible.

  By using the plug of the present invention, it is possible to open the spout closing portion and pour out the contents simply by pulling out the sealing band showing virginity and simply opening the cap. Compared to conventional containers fused with film fused to the mouth, the mouth is less rough due to fusing and peeling, so that the liquid-stopping effect of the contents can be exerted reliably, there is no leakage, and it is fused in a narrow space There is no need to peel off the fused film. For this reason, problems such as spilling of contents during film peeling do not occur.

In addition, when the mouth plug of the present invention is used, the thin fragile line 43 of the outlet closing portion 4 is opened while being broken in a state where the inner ring is fitted as compared with the pull-top type container, so that the contents are Problems such as spills are unlikely to occur. When pulling the thin weakened wire 43 directly like a pull top to break it, a large force was required. However, when opening the cap with the spigot of the present invention, such a force is necessary. Rather, it can be opened with a small force.
For this reason, even a weak person such as an elderly person or a child can easily open. Anyway, in the case of the pull-top method with a small mouth, there was a problem that it was difficult for an adult to open the finger because it was difficult to put it in the pull ring, but this problem was also solved.
Further, according to the present invention, each of the mouth and the cap can be formed by simple injection molding, so that the production line is simple and the cost is great.

1 ··· Cap 11 ··· Cap fixing portion 12 ··· Cap top surface 13 · · · Inner ring 14 · · · Cap claw 141 ··· J shape Hook 142 ··· hook 15 having dovetail shape ··· contact ring 16 ··· rib 17 ··· projection 18 ··· 2 · Mouth 21 ··· outlet 22 ··· outlet opening 23 ··· fusion piece 24 ··· fitting rib 3 ··· container body 31 ··· ... Cap mounting surface 32 ... Body 4 ... Pouring port closing part 41 ... Pil 42 ... Fitting part 421 ... T-shaped Shape fitting part 422 ··· Tenon shape fitting part 43 ··· Thin fragile wire 44 · · · Spout ring 45 · · · circular cut 5 · · · sealed Band 51 ----- thin portion 52 ..... thin portion 6 ...... hinge

Claims (4)

  It consists of a mouth provided with a cylindrical spout and a peripheral edge welded around the spout for the container body at one end, and a top surface connected by a fixing part and a hinge. A cap for a container comprising a cap to be fitted, and the mouth is connected to the lower part of the cylindrical spout by a spout and a thin brittle line to close the spout opening of the container body The cap has a mechanism that engages with the column on the top surface, and the cap has a thin wall when the cap is opened. A container plug having a structure in which a fragile line is broken and a pouring port closing portion is opened.   The container cap according to claim 1, wherein an inner ring that fits into the spout is provided inside the top surface of the cap.   The mechanism for engaging the column of the outlet closing portion with the top surface portion of the cap is provided with a J-shaped hook that hooks from both sides of the T-shape as the engagement portion of the top surface portion with a T-shaped tip of the column. The container stopper according to claim 1, wherein:   The mechanism for engaging the column of the outlet closing portion and the top surface of the cap has a tenon shape at the tip of the column, and a dovetail-shaped hook that fits into the tenon shape is provided as the engaging portion of the top surface portion. The container stopper according to claim 1 or 2, wherein the container cap is provided.