JP4502830B2 - Hinge cap to prevent liquid contents from splashing. - Google Patents

Description

The present invention relates to a liquid content splash prevention hinge cap that is used by being attached to a container such as various seasonings, and more specifically, a cap body having a pouring tube formed on the top surface and an upper lid via a hinge portion. A liquid content splash prevention hinge that has a through hole for internal pressure release on the top surface inside the dispensing cylinder, and prevents the content from splashing due to changes in internal pressure when the upper lid is opened. Regarding the cap.

The hinge cap is connected to the cap body and the top lid via the hinge part, and in addition to its openability, it can also be easily opened to enhance convenience, so liquid contents such as seasonings can be added. Often used for containers. That is, the hinge cap is made liquid-tight by plugging or screwing the cap body into the mouth of the container, and is kept in a liquid-tight state so as not to be easily removed. And can be opened and closed by the hinge connection.

Conventionally, such hinge caps are often used by attaching to the mouth of glass bottles, but they are also often used for PET bottles, which are containers with excellent heat resistance. It is also beginning to perform high-temperature filling of materials such as 90 ° C. Thus, when the seasoning etc. with which high temperature filling was carried out to the PET bottle will be normal temperature, since the inside will be in a pressure-reduced state, a PET bottle will dent-deform. Therefore, when the hinge cap is opened with a pull ring or the like, air instantly enters and the decompressed state is resolved, and the shape of the PET bottle is restored.At that time, the liquid level of the seasoning and the like is ruffled, and the seasoning and the like are outside the hinge cap. The phenomenon of splashing may occur, and the phenomenon of soiling around the table and the clothes may occur. As a technique for suppressing such a phenomenon, those described in the following patent documents are known.

JP 2003-212253 A JP 2003-212254 A

As shown in FIG. 6, the cap of Patent Document 1 includes a cap body a that is attached to the mouth portion of the container, and an upper lid that is screwed on and removed from the cap body. Forming,
An endless weakening line d is formed on the top surface b on the inner side of the pour tube c, and a pull ring f is provided in the planned opening portion e which can be removed by breakage surrounded by the weakening line d. In addition, the independent thin-walled fragile part g and the convex part h are formed adjacent to the independent thin-walled fragile part g to prevent the liquid contents from scattering. And this convex part h is pushed in the direction of the arrow line, the independent thin fragile part g is broken to form a crack, air is introduced into the container to gradually bring the inside of the container to normal pressure, and then the pull ring f
, By breaking the weakening line d and removing the planned opening portion e from the top surface b and opening it, the phenomenon of seasonings scattering outside the cap is prevented.

As shown in FIG. 7, the cap described in Patent Document 2 is formed with a weak edge g1 and a rod-like protrusion h1 adjacent to the weak edge g1 in the region of the planned opening portion e. This part has the same configuration as the cap of FIG. Then, the rod-shaped protrusion h1 is pushed in the direction of the arrow, the fragile edge g1 is broken to form a crack, air is introduced into the container to gradually bring the container to normal pressure, and then the pull ring f is pulled. By breaking the weakening line d and removing the opening scheduled portion e from the top surface b and opening it, a phenomenon in which seasonings and the like are scattered outside the cap is prevented.

The cap of Patent Document 1 has an independent thin-walled fragile portion g and a convex portion h in the region of the planned opening portion e, and pushes the convex portion h in the direction of the arrow to break the independent thin-walled fragile portion g. The air is introduced into the container through this crack, and the inside of the container is gradually brought to normal pressure. Therefore, when pushing the convex part h, it is sufficient that only the independent thin fragile part g can be broken, but there is a possibility that the weakening line d may be broken due to the force, and in this case, a seasoning or the like scatters outside the cap. There is a risk of getting up. Furthermore, in order to suppress this phenomenon, two operations of pushing the convex portion h after the upper lid is screwed off from the cap main body a are required, which is troublesome.

The same thing as Patent Document 1 can be applied to the Hinge Cap of Patent Document 2, and it is sufficient that only the weak edge g1 can be broken when pushing the rod-shaped protrusion h1, but there is a possibility that the weakening line d may be broken by force adjustment. In that case, a phenomenon that seasonings and the like scatter out of the hinge cap occurs. Furthermore, in order to suppress this phenomenon, the two operations are troublesome as in the case of Patent Document 1.

Therefore, the object of the present invention is to perform one operation, that is, a normal hinge cap opening operation, particularly when the container is filled with the liquid contents, in a reduced pressure state. An object of the present invention is to provide a liquid content scattering prevention hinge cap which does not cause the liquid content to scatter to the outside when opened.

The present invention has been proposed in order to achieve the above object, and is characterized by having the following configuration.
That is, according to the present invention,
A cap body and an upper lid are connected via a hinge part, and the cap body is composed of a top surface and a skirt wall depending from the periphery of the top surface, and a pour tube is formed on the top surface. ,
An endless weakening line is formed on the top surface on the inner side of the pouring tube, and a portion surrounded by the weakening line becomes an opening planned portion that can be removed by breakage, and a pull ring for breaking and removing the planned opening portion is provided. Connected through the base,
The upper lid includes a top plate and a cylindrical wall that hangs down from a peripheral edge of the top plate, and the top plate has a hinge cap formed with an inner ring that fits into the extraction tube. A liquid content scattering prevention hinge cap is provided, wherein a through hole is provided on the inner top surface, and a sealing member for sealing the through hole is provided on the upper lid.

Moreover, according to this invention, the liquid content scattering prevention hinge cap in which the said through-hole is formed in the outer top surface of the weakening line on the opposite side to a hinge part is provided.

Moreover, according to this invention, the liquid content scattering prevention hinge cap whose said sealing member is a column-shaped or cylindrical support | pillar which hangs down from the lower end of the said inner ring is provided.

According to the invention, the upper lid is formed with an annular ring that hangs down from the top plate of the upper lid on the inner side of the inner ring, and the sealing member hangs from the lower ends of the inner ring and the annular ring. A liquid content splash prevention hinge cap which is a columnar or cylindrical column is provided.

Further, according to the present invention, the through hole is formed in the planned opening portion on the side opposite to the hinge portion, and the closing member is a columnar or cylindrical shape that hangs down from the inner side of the inner ring of the top plate. A liquid content scattering prevention hinge cap is provided.

Further, according to the present invention, the collar portion is formed at a position opposite to the hinge portion of the cylindrical wall, and the collar portion is extended from the skirt wall of the cap body when the upper lid is closed. A liquid content scattering prevention hinge cap is provided, which is provided with a tamper evidence cover so as to cover it.

In the hinge cap of the present invention, when opening the upper lid from the cap body, the sealing member is first removed from the through hole provided on the top surface inside the dispensing cylinder almost simultaneously with the opening, and air is introduced into the container from the through hole. Since the inside of the container is gradually brought to normal pressure and the pull ring is pulled to break the weakening line, the liquid content will not be unexpectedly scattered outside when the upper lid is opened. Therefore, by performing a normal opening operation of the hinge cap, there is an effect that the liquid content does not scatter to the outside at the time of opening even if the inside of the container filled with the liquid content is in a reduced pressure state.

The hinge cap of the present invention also has a sealing member that fits into the through hole when the upper lid is first fitted to the cap body after being molded, but when the through hole is outside the weakening line, the sealing member on the top lid This eliminates the possibility of breaking the weakening line. Further, when the upper lid is fitted to the cap main body after opening, the through hole and the hinge portion are positioned away from each other, so that the sealing member can be smoothly fitted into the through hole. That is, in addition to the above effects, the weakening line is not damaged before opening, and the upper lid can be opened and closed smoothly after opening.

In the hinge cap of the present invention, since the sealing member is a columnar or cylindrical column hanging from the lower end of the inner ring, the sealing member does not become longer than necessary. Therefore, in addition to the above-described effect, it can be smoothly fitted into the through hole, and further, there is an effect that the material of the sealing member having a length corresponding to the inner ring can be saved.

In addition, in the hinge cap of the present invention, the sealing member does not become longer than necessary by making the sealing member a columnar or cylindrical column hanging from the lower end of the inner ring and the annular ring inside thereof. There is little blur and it can be securely fitted in the through hole.
Therefore, in this case, in addition to the above effect, the sealing member can be smoothly fitted in the through hole, and further, since the sealing member is installed straddling the inner ring and the annular ring, there is an effect of easily increasing the strength of the sealing member.

Further, in the hinge cap according to the present invention, when a through hole is formed in the planned opening portion, a sealing member that is a columnar or cylindrical column is provided inside the inner ring along the through hole, and the sealing member Since the turning trajectory at the time of closing can be formed inside the pull ring, the pull ring can be formed large, and the pull ring can be easily held at the time of opening.

In addition, in the hinge cap of the present invention, when the tamper evidence cover is attached, the opening member of the upper lid prevents the sealing member from coming out of the through hole and breaking the initial seal. Therefore, if the tamper evidence cover is separated from the hinge cap,
The fact that the top lid has been opened can be recognized, and there is an effect that the mischief can be known in advance.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

FIG. 1 is a cross-sectional view of a state in which a liquid content scattering prevention hinge cap according to an embodiment of the present invention is attached to a container mouth, and FIG. 2 is a cross-sectional view of the liquid content scattering prevention hinge cap after molding.
FIG. 3 is a plan view after the liquid content scattering prevention hinge cap is molded.
In these drawings, a liquid content splash prevention hinge cap (hereinafter simply referred to as a “hinge cap”) 1 has a cap body 2 and an upper lid 3 connected via a hinge portion 4.
The cap body 2 includes a top surface 5 and a skirt wall 6 that hangs down from the periphery of the top surface 5.
A pouring tube 7 is formed on the top surface 5, and an endless weakening line 8 is formed on the top surface 5 inside the pouring tube 7, and a portion surrounded by the weakening line 8 is formed. It is set as the opening scheduled part 9 which can be removed by breakage.

A pull ring 10 for breaking and removing the planned opening portion 9 is connected to the top surface 5 via a base portion 11, and the upper lid 3 is a top wall 12 and a cylindrical wall 13 that hangs down from the periphery of the top plate 12. Under the top plate 12, an inner ring 14 that fits into the pouring cylinder 7 is formed, and a through hole 15 is provided on the top surface of the cap body 2 inside the pouring cylinder 7. And
The upper lid 3 is provided with a sealing member 16 that seals the through hole 15.

The container 20 to which the hinge cap 1 is attached is not particularly limited as long as the cap body 2 can be stoppered or screwed into the mouth portion 21 and may be of any type or material. In this Example 1, it is made of a plastic, particularly polyethylene terephthalate (especially polyethylene terephthalate (opening and closing by a top cover 3) which is used for a frequently dispensed product such as a seasoning.
PET) bottle type is assumed.

The cap body 2 is provided with a skirt wall 6 and an inner cylinder 22 on the top surface 5 to form a stopper portion 23, and the stopper portion 23 of the container 20 is plugged into the stopper portion 23. To make it liquid-tight. Then, the cap body and the upper lid can be kept closed by engaging with a recess 25 provided at the end of the cylindrical wall 13 of the upper lid 3 to be described later.

Further, the portion surrounded by the weakening line 8 on the inside of the dispensing cylinder 7 is an opening planned portion 9 that can be removed by breakage. When the pull ring 10 provided in the planned opening portion 9 is pulled with a finger, the portion is weakened. The line 8 can be broken to open the planned opening portion 9. In FIG. 1, reference numeral 26 denotes a slip stopper when placing a finger on the pull ring 10. On the other hand, sealing after opening is performed by fitting the inner ring 14 of the upper lid 3 to the dispensing cylinder 7 of the cap body 2.

The through-hole 15 for releasing the internal pressure described above is provided on the outer top surface 5 by the weakening line 8 on the opposite side of the hinge portion 4 inside the pouring cylinder 7 of the cap body 2 in the first embodiment. Yes. The through hole 15 is a circular hole in the first embodiment, but is not limited thereto, and may be a square hole, an oval, an ellipse, or the like, but a circular hole is optimal. In the first embodiment, the sealing member 16 that seals the through-hole 15 is installed across the lower ends of the inner ring 14 of the upper lid 3 and the annular ring 30 that is located on the inner side and hangs down from the top plate 12. Yes.

The shape of the blocking member 16 is a column or a cylinder in the first embodiment, but is formed according to the shape of the through hole 15. These through-holes 15 and the sealing member 16 are preferably provided with R (R) or taper at the peripheral edges thereof.
Can be fitted smoothly. As will be described later, this through hole 1
5 may be provided on the inner top surface 5 by the weakening line 8 on the opposite side of the hinge part 4.
In that case, the installation location of the sealing member 16 also changes along the through hole 15. Further, the sealing member 16
May be provided at the lower end of the inner ring 14 and the annular ring 30 may be omitted.

A tamper evidence cover 31 is interposed between the cap body 2 and the upper lid 3 of the hinge cap 1 as necessary. That is, this tamper-evident cover 31
The cap body 2 extends to the end of the skirt wall 6 and covers the flange 32 formed on the cylindrical wall 13 of the upper lid 3 on the side opposite to the hinge portion 4. In other words, the upper lid 3 is attached to the cap body 2 before the hinge cap 1 is plugged into the mouth portion 21 of the container 20.
In the state in which is fitted, the convex portion 31 a of the tamper-evidence cover 31 is attached to the concave portion 32 a of the flange portion 32.

Therefore, in the process of opening the upper lid 3, the tamper-evidence cover 31 is broken from the skirt wall 6 of the cap body 2 and is also detached from the upper lid 3, so that the upper lid 3 can be opened by visual inspection when the tamper-evidence cover 31 is removed. Recognize facts and know pranks in advance. At this time, the opening of the upper lid prevents the sealing member from coming out of the through hole and destroying the initial seal.

Next, a method for using the hinge cap 1 configured as described above will be described.
First, the cap body 2 and the upper lid 3 constituting the hinge cap 1 conforming to the container 20 adapted to the liquid content and the mouth portion 21 thereof are selected, and the cap body 2 of the hinge cap 1 in the state shown in FIGS. The upper lid 3 is fitted to the state shown in FIG. Next, 90 in the container 20
A plugging portion 2 filled with a high-temperature liquid content of about 0 ° C. and formed by the skirt wall 6 and the inner cylinder 22.
3, the inside of the container 20 is sealed. Thereafter, the container 20 with the hinge cap 1 is packaged as a final product as necessary.

When the hinge cap is used, the tamper evidence cover 31 is removed from the skirt wall 6 of the cap body 2 by removing the projection 31 of the tamper evidence cover 31 attached to the recess 32 a of the flange 32 of the upper lid 3. The upper lid 3 can be removed from the cap body 2 by breaking. If the eaves part 32 is pushed up with fingers and the upper lid 3 is opened from the cap body 2, the sealing member 16 is detached from the through hole 15, and air suddenly enters the container 20 in the decompressed state from the through hole 15. Since the hole diameter of 15 is small, a large amount of air does not enter at a time. As a result, the reduced pressure state in the container 20 is gradually changed to the normal pressure state, and the dent deformation of the container 20 is eliminated.

After that, even if the pull ring 10 is pulled and the weakening line 8 is broken, since the inside of the container 20 is already at normal pressure, the liquid content does not scatter outside the container 20 and only the required amount of liquid content in the container 20 is obtained. It is possible to pour into a necessary place from the dispensing cylinder 7 of the cap body 2. When the cap body 2 is covered with the upper lid 3 after pouring the liquid content, the inner ring 14 is fitted into the dispensing cylinder 7 in the process, and the sealing member 16 penetrates the through hole 15 and the container 20 Seal so that the liquid content inside does not leak. Thereafter, the same operation is repeated until the liquid contents in the container 20 are used up.

FIG. 5 is for explaining another embodiment of the hinge cap of the present invention. The difference between the hinge cap 1a and the embodiment shown in FIGS. 1 to 4 is that the through-hole 15a is different from the hinge portion 4 in FIG. Is formed in the opening planned portion 9 on the opposite side, and the closing member 16a is connected to the inner ring 1.
4 is a columnar or cylindrical column that hangs down from the top plate 12 inside. And
Even if there is a through hole 15a in the planned opening portion 9 and the sealing member 16a is provided on the inner side of the inner ring 14, when the upper lid 3 is opened from the cap body 2, the sealing member 16a is detached from the through hole 15a, and from the through hole 15a. In order to gradually introduce the air into the container 20 and gradually bring the inside of the container 20 to normal pressure, the container filled with the liquid content by performing the opening operation of the normal hinge cap as in the first embodiment. Even when the inside of the container 20 is in a reduced pressure state, there is no possibility that the liquid contents scatter to the outside at the time of opening.

Further, in this embodiment, a through hole is formed in the planned opening portion, and a sealing member that is a columnar or cylindrical support is provided inside the inner ring along the through hole.
Since the turning trajectory when the sealing member is closed can be formed inside the pull ring, the pull ring can be formed large, and the pull ring can be easily held when the plug is opened. Since other configurations and operations are substantially the same as those of the embodiment shown in FIGS. 1 to 4, reference numerals are attached to the drawings and description thereof is omitted.

As described above, the first and second embodiments of the present invention have been described. However, the specific configuration is not limited to this, and the present invention can be applied even if the inside of the container is in a pressurized state and does not depart from the gist of the present invention. It should be understood that these changes can be made as appropriate.

The hinge cap of the present invention needs to be filled with a high-temperature liquid content in the container, so that the inside of the container is depressurized at room temperature, and the liquid content is not restored due to the rapid restoration of the container at the time of opening. When there is a possibility of splashing outside, the availability becomes extremely high.

It is sectional drawing of the state which mounted | wore the container mouth part with the liquid content splash prevention hinge cap which shows the form of Example 1 of this invention. It is sectional drawing after shaping | molding of the liquid content splash prevention hinge cap. It is a top view after shaping | molding of the liquid content scattering prevention hinge cap. It is sectional drawing which shows the use condition of the liquid content scattering prevention hinge cap. It is sectional drawing of the liquid content scattering prevention hinge cap which shows the form of Example 2 of this invention. It is sectional drawing which shows the example of the cap aiming at the conventional scattering prevention. It is sectional drawing which shows the other example of the cap intended for the conventional scattering prevention.

Explanation of symbols

1,1a Liquid content splash prevention hinge cap 2, a cap body 3 upper lid 4 hinge portion 5, b top surface 6 skirt wall 7, c pouring cylinder 8, d weakening line 9, e opening planned portion 10, f pull ring 11 Base 12 Top plate 13 Cylinder wall 14 Inner ring 15, 15a Through hole 16, 16a Sealing member 20 Container 21 Mouth 22 Inner cylinder 23 Plugging portion 24 Outer peripheral wall 25 Recessed portion 26 Sliding stopper 30 Annular ring 31 Tamper-evident cover 31a , H Convex part 32 ridge part 32a dent part g independent thin-walled fragile part g1 fragile edge part h1 rod-like protrusion

Claims (6)

The cap body and upper lid are connected via a hinge part,
The cap body includes a top surface and a skirt wall hanging from the periphery of the top surface, and a pouring tube is formed on the top surface, and an endless weakening line is formed on the top surface inside the pouring tube. Is formed, the portion surrounded by the weakening line becomes a planned opening portion that can be removed by breakage, and a pull ring for breaking and removing the planned opening portion is connected via the base,
The upper lid includes a top plate and a cylindrical wall that hangs down from a peripheral edge of the top plate, and the top plate has a hinge cap formed with an inner ring that fits into the extraction tube. A liquid content scattering prevention hinge cap, wherein a through hole is provided on the inner top surface, and a sealing member for sealing the through hole is provided on the upper lid. The liquid content scattering prevention hinge cap according to claim 1, wherein the through hole is formed on a top surface outside the weakening line opposite to the hinge portion. The liquid content scattering prevention hinge cap according to claim 1 or 2, wherein the sealing member is a columnar or cylindrical column depending from a lower end of the inner ring. The upper lid is formed with an annular ring that hangs down from the top plate of the upper lid inside the inner ring, and the sealing member is a columnar or cylindrical column that hangs down from the lower ends of the inner ring and the annular ring. The liquid content scattering prevention hinge cap according to claim 1 or 2. 2. The through hole is formed in the planned opening portion on the opposite side of the hinge portion, and the closing member is a columnar or cylindrical column that hangs down from the inner ring of the top plate. The hinge cap for preventing liquid contents from scattering. A flange portion is formed at a position opposite to the hinge portion of the cylindrical wall, and a tamper evidence cover is provided so as to extend from the skirt wall of the cap body and cover the flange portion when the upper lid is closed. The liquid content scattering prevention hinge cap according to any one of claims 1 to 5, wherein the hinge cap is attached.

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