JP2007246127A - Hinge cap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hinge cap capable of preventing the suction of cooling water even in a pressure-reduced state accompanied by a high-temperature charging operation. <P>SOLUTION: A cap body 10 has an outer side wall 15 and a dispensing cylinder 14, an engagement protrusion 15a is formed outside the outer side wall 15 and an arcuate surface 15b is formed at its inside. An upper lid 20 has a side wall 22, a seal ring 25 and an inner ring 23. The inner peripheral surface of the side wall 22 has an engaged protrusion 24 engaged with the engagement protrusion 15a of the outer side wall 15. An annular tongue piece 26 having an inclination surface 26a is formed at the lower end of the seal ring 25. When the upper lid 20 is closed against the cap body 10, the arcuate surface 15b is depressed against the inclination surface 26a of the annular tongue piece 26 to enable the problem to be solved. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a hinge cap filled with a liquid content, and more particularly to a hinge cap attached to a container used for high-temperature filling of the liquid content, and more specifically, the liquid content in the container. The present invention relates to a hinge cap capable of reliably preventing cooling water from entering the cap dispensing cylinder even when the engagement portion between the cap body and the upper lid is slightly deformed during the cooling step after filling the object at a high temperature or during plugging. .

The hinge cap is connected to the cap body and the upper lid by a hinge, and in addition to its openability, it also provides easy opening, enhancing convenience, so it contains liquid contents such as seasonings and natural fruit juice. It is often used for containers. That is, this hinge cap is made liquid-tight by plugging the cap body into the container mouth, and is kept in a liquid-tight state so as not to be easily removed. Is realized by the hinge connection. In addition, there is also a type in which the cap main body is screwed to and detached from the container mouth portion with the hinge connected.

In such a hinge cap, the inside of the container is depressurized in the cooling process, and the inside of the hinge cap is also depressurized. Since this cooling water is not normally used for beverages, if it enters into the cap, the commercial value is significantly impaired. In particular, in the case of a glass container, this phenomenon is remarkable because there is no deformation of the container. For example, the following patent documents are known as techniques aimed at preventing water from entering the container.
JP 2001-270540 A

As shown in FIGS. 6 and 7, the hinge cap disclosed in Patent Document 1 is formed by connecting a cap body a and an upper lid b to be attached to a mouth portion of a container by a hinge c.
An annular projection f composed of an upper end plane f1 and a projection f2 is formed between the pouring tube d and the peripheral edge of the top plate portion e, and an annular projection f is formed on the inner surface side of the skirt portion g of the upper lid b. A locking portion h that can be locked in a liquid-tight manner is formed. The locking portion h includes a circumferential recess h1 and an annular horizontal surface h2, and the periphery of the top plate portion e of the cap body a and the upper lid b. A notch i for discharging water is formed on the contact surface with the lower end of the skirt part g.

Then, when the cap body a is covered with the upper lid b, the protruding portion f2 of the annular protrusion f of the cap body a engages with the circumferential recess h1 of the locking portion h of the upper lid b, and the annular protrusion of the cap body a The upper end plane f1 of the part f is in close contact with the annular horizontal plane h2 of the locking part h of the upper lid b. Accordingly, the inside of the hinge cap is depressurized by cooling, and the top surface j of the upper lid b is deformed to the container side, or even if an external force is applied to the upper lid b from above, the skirt portion g of the upper lid b may be displaced downward. This prevents the displacement between the annular protrusion f of the cap body a and the engaging portion h of the upper lid b, and it is possible to maintain a reliable sealing and prevent the phenomenon of sucking cooling water.

In the hinge cap described in Patent Document 1, the annular protrusion f of the cap body a and the engaging portion h of the upper lid b are brought into close contact with each other, and the skirt portion g of the upper lid b is prevented from being displaced downward. Sealing can be maintained and the phenomenon of sucking cooling water can be prevented. However, when the hinge cap is plugged into the mouth of the container, there is a phenomenon in which the annular projection f of the cap body a falls down and deforms, and the projection f2 of the annular projection f of the cap body a and the upper lid b The circumferential recess h1 of the locking part h
The engagement between the upper end plane f1 of the projection part f and the annular horizontal plane h2 of the locking part h becomes insufficient, and there is a risk that cooling water may be sucked in if the pressure is relatively strong. .

Therefore, the object of the present invention is to prevent the cooling water from being sucked in spite of the appearance of the decompressed state due to the high temperature filling of the contents, even if the shape of the cap body is plugged into the mouth of the container. It is to provide a hinge cap that can be made.

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, the cap main body and the upper lid are connected to each other by a hinge so that the cap main body is openable and closable, and the cap main body is suspended from the peripheral edge of the top surface and is fitted and fixed to the container mouth. The top surface is formed with a planned opening portion and a dispensing cylinder surrounding the planned opening portion, and the upper lid is closed and fixed to the outer peripheral surface outward from the dispensing tube. An outer wall having a locking protrusion for forming the top body, and the upper lid has a top plate and a side wall hanging from the peripheral edge of the top plate. An inner ring that contacts the inner surface of the cylinder is formed, and a hinged cap that is engaged with a locking protrusion on the outer wall of the cap body is formed on the inner peripheral surface of the side wall. The boundary between the upper surface of the outer wall and the inner peripheral surface of the cap body. A circular arc-shaped surface is formed, and a seal ring that hangs from the top plate is formed between the inner ring and the side wall of the upper lid. An hinge having an inclined surface extending downward is formed, and when the upper lid is closed to the cap body, the inclined surface of the annular tongue is pressed against the arcuate surface of the outer wall. A cap is provided.

In addition, according to the present invention, there is provided a hinge cap in which the upper surface of the outer wall and the lower surface of the seal ring abut or approach each other when the upper lid is closed to the cap body.

Further, according to the present invention, there is provided a hinge cap that is intermittently bridged between the outer peripheral surface of the seal ring and the inner side of the side wall of the upper lid in the vicinity of the top plate side base of the seal ring.

In the hinge cap according to the present invention, when the skirt wall of the cap body is fitted and fixed to the mouth of the container with the top lid closed, the skirt wall is slightly displaced outward and the outer wall is slightly tilted inward. However, the suction of the cooling water in the cooling process can be completely prevented by the pressure contact between the arcuate surface of the outer wall and the inclined surface of the annular tongue of the seal ring.

Further, the hinge cap of the present invention is such that when the upper lid is closed to the cap body, the upper surface of the outer wall and the lower surface of the seal ring are in contact with or close to each other. The load can be received by the side wall of the upper lid and the seal ring. Therefore, in addition to the above effects, there is an effect that the buckling of the upper lid can be prevented.

Furthermore, the hinge cap of the present invention has a stoppering pressure when the cap body is stoppered at the mouth of the container in order to reinforce the seal ring by an intermittent bridge between the side wall and the seal ring in the upper lid. This has the effect of further preventing the buckling of the seal ring.

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

1 is a longitudinal sectional view of a state in which a hinge cap showing an embodiment of the present invention is plugged into the mouth of a container, FIG. 2 is a longitudinal sectional view of the hinge cap opened, and FIG. 3 is a perspective view of the hinge cap. FIG. 4 is an enlarged longitudinal sectional view of the main part of the hinge cap.
In these drawings, the hinge cap 1 has a cap body 10 and an upper lid 20 that are hinges 3.
The cap body 10 is connected to the top surface 11 and the top surface 11.
And a skirt wall 12 which is fitted and fixed to the mouth 3 of the container 2.
1 is formed with a planned opening 13 and a pour cylinder 14 surrounding the pre-opening section 13, and a member for closing and fixing the upper lid 20 on the outer peripheral surface outside the pour cylinder 14. An outer wall 15 having a stop protrusion 15 a is formed, and the upper lid 20 has a top plate 21 and a side wall 22 depending from the periphery of the top plate 21, and is suspended from the top plate 21. An inner ring 23 is formed in contact with the inner surface of the dispensing cylinder 14.

The container 2 to which the hinge cap 1 is mounted is not particularly limited as long as the cap body 10 can be plugged into the mouth portion 3, and may be of any type or material. In the first embodiment, in the cooling process after high-temperature filling, the container is not made of deformation due to reduced pressure, and is a glass container having the greatest influence on the cap.

The cap body 10 is provided with a skirt wall 12 and an inner cylinder 16 below the top surface 11.
A fitting portion 17 is formed, and the mouth portion 3 of the container 2 is plugged into the fitting portion 17 to make it liquid-tight. Further, as described above, the outer wall 1 is placed on the top surface 11 outside the dispensing tube 14.
5 is provided, even if there is liquid dripping from the dispensing cylinder 14, it will not spill out of the outer wall 15 immediately.

Further, the planned opening portion 13 inside the dispensing tube 14 is a part that is surrounded by the score 18 and can be removed by breakage. The score tearing tab 19 provided in the planned opening portion 13 is hooked and pulled. Then, the score 18 can be broken, and the planned opening portion 13 can be removed, that is, opened.
In addition, 19a in FIG. 1 is a slip stopper when a finger is put on the score tearing tab 19. On the other hand, the seal after opening is performed by fitting the inner ring 23 of the upper lid 20 to the dispensing cylinder 14 of the cap body 10.

  The upper lid 20 has a side wall 22, a seal ring 25, which will be described later, and an inner ring 23, which are suspended from the outer side to the inner side under the top plate 21. One end of the side wall 22 is connected to the other end by a hinge 30. Is provided with a collar 27 to facilitate opening and closing of the upper lid 20. Furthermore, the locking ridge 24 is formed on the inner peripheral surface of the side wall 22, and is locked to the locking ridge 15 a of the outer wall 15 of the cap body 10. In addition to preventing the entry of garbage and the like.

The boundary between the upper surface and the inner peripheral surface of the outer wall 15 of the cap body 10 is an arcuate surface 15b.
Further, a seal ring 25 depending on the top plate 21 is formed between the inner ring 23 and the side wall 22 of the upper lid 20. On the inner peripheral edge of the lower end of the seal ring 25, an annular tongue piece 26 having an inclined surface 26a whose outer surface extends inward and downward is formed. When the upper lid 20 is closed to the cap body 10, the arcuate surface 15 b of the outer wall 15 is pressed against the inclined surface 26 a of the annular tongue piece 26. Further, when the upper lid 20 is closed to the cap body 10, the outer wall upper surface and the seal ring lower surface are in contact with each other.

  4 and 5, the skirt wall 12 of the cap body 10 is fitted and fixed to the mouth 3 of the container 2 in a state where the upper lid 20 is closed (FIG. 4). 5) Then, the skirt wall 12 is slightly displaced outward, and the outer wall 15 falls slightly inward. The position of the outer wall that is in pressure contact with the inclined surface 26a of the annular tongue piece 26 of the seal ring 25 changes due to the fall of the outer wall, but since the pressure contact surface of the outer wall is an arcuate surface 15b, the pressure contact state is In this way, the suction of cooling water in the subsequent cooling process can be completely prevented. Further, since the upper surface of the outer wall 15 and the lower surface of the seal ring 25 are in contact with each other, when the cap body 10 is plugged into the mouth 3 of the container 2, the load is received by the side wall 22 of the upper lid 20 and the seal ring 25. Therefore, it is possible to effectively prevent the buckling of the side wall 22 of the upper lid 20 by distributing the plugging force.

  Ribs 28 for bridging are provided intermittently on the top plate 21 between the side wall 22 and the seal ring 25. Since the ribs 28 reinforce the seal ring 25, it is possible to further prevent buckling of the seal ring 25 due to the plugging pressure when the cap body 10 is plugged into the mouth 3 of the container 2.

On the other hand, as the outer wall 15 is slightly tilted inward, the locking ridge 15a slightly moves inward, and the locked state of the side wall 22 of the upper lid 20 with the locked ridge 24 is slightly relaxed. Therefore, the upper lid 20 can be easily opened and closed accordingly. Therefore, it has a demerit when the cap body 10 is plugged into the mouth portion 3 of the container 2, and repulsion due to the inward displacement of the seal ring 25 despite the appearance of a reduced pressure state due to high temperature filling of the liquid contents. Using the force, the outer wall 1 is stronger
5 is pressed against the inclined surface 26a of the annular tongue 26, and the suction of the cooling water can be completely prevented. In addition, the locking protrusion 15a of the cap body 10 is locked to the upper lid 20. Ridge 2
Therefore, the upper lid 20 can be easily opened and closed by the amount of the locking state with 4.

When the cap body 10 is covered with the upper lid 20, the inner ring 23 is fitted into the extraction tube 14, and the outer peripheral surface 23 a abuts on the sealing protrusion 14 a at the lower inner peripheral surface of the extraction tube 14. Thus, sealing after opening is performed.

When the product is consumed, if there is a package, it is removed, and at least the hinge cap 1 is bare, and the upper lid 20 can be removed from the cap body 10. The upper lid 20 can be easily opened from the cap body 10 by pushing up the collar 27 with fingers. Further, if the finger is put on the score tearing tab 19 and pulled, the score 18 is broken and the opening portion 13 is removed and the opening is opened. I can do it. Then, the required amount of liquid content in the container 2 can be poured from the dispensing tube 14 of the cap body 10 into the necessary location. After the liquid content has been poured, when the upper lid 20 is put on the cap body 10, the inner ring 23 is fitted into the dispensing cylinder 14 and sealed so that the liquid content in the container 2 does not leak. Thereafter, the same operation is repeated until the liquid contents in the container 2 are used up.

As mentioned above, although Example 1 of this invention was demonstrated, a specific structure is not limited to this, It is applicable even if the inside of a container is a pressurized state, The change in the range which does not deviate from the summary of this invention It should be understood that is possible as appropriate. For example, since there is a possibility that cooling water may enter between the seal ring and the side wall, a notch can be provided on the inner surface of the side wall in order to quickly discharge the cooling water.

The hinge cap of the present invention is also effective in the case where it is necessary to fill the container with a high-temperature liquid content and the pressure is reduced when cooling with cooling water thereafter, and the cooling water is sucked in. In particular, when the shape is such that the hinge cap is plugged into the mouth of the container, the applicability is extremely high.

It is a longitudinal cross-sectional view of the state which plugged the hinge cap which shows embodiment in Example 1 of this invention at the opening part of the container. It is a longitudinal cross-sectional view of the state which similarly opened the hinge cap in Example 1. FIG. It is a top view of the state where the hinge cap in Example 1 was similarly opened. FIG. 3 is an enlarged longitudinal sectional view of the main part of the hinge cap in the first embodiment. FIG. 3 is an enlarged longitudinal sectional view of the main part in a state where the hinge cap in Example 1 is similarly plugged into the mouth of the container. It is a top view which shows the hinge cap for the purpose of the conventional water entry prevention. It is a longitudinal cross-sectional view which shows the hinge cap for the purpose of the conventional water entry prevention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hinge cap 2 Container 3 Mouth part 10 Cap main body 11 Top surface 12 Skirt wall 13 Planned opening part 14 Pour pipe 14a Sealing ridge 15 Outer side wall 15a Locking ridge 15b Arc-shaped surface 16 Inner cylinder 17 Fitting part 18 Score 19 Score tear tab 20 Top lid 21 Top plate 22 Side wall 23 Inner ring 23a Outer peripheral surface 24 Locked protrusion 25 Seal ring 26 Annular tongue 26a Inclined surface 27 鍔 28 Rib 30 Hinge a Cap body b Top lid c Hinge d Extraction cylinder e Top plate part f Annular projection part f1 Upper end plane f2 Projection part g Skirt part h Locking part h1 Circumferential concave part h2 Annular horizontal plane i Notch j Top surface

Claims (3)

The cap body and upper lid are connected to each other by hinges so that they can be opened and closed.
The cap body is composed of a top surface and a skirt wall that is suspended from the periphery of the top surface and is fitted and fixed to the container mouth.
The top surface is formed with a planned opening and a dispensing cylinder surrounding the planned opening, and a locking protrusion for fixing the upper lid to the outer peripheral surface outside the dispensing cylinder. An outer wall having a strip is formed;
The upper lid has a top plate and a side wall hanging from the peripheral edge of the top plate, and an inner ring is formed hanging from the top plate and coming into contact with the inner surface of the extraction cylinder of the cap body. On the inner peripheral surface of the hinge cap formed with a locking protrusion to be locked with a locking protrusion on the outer wall of the cap body,
The cross-sectional shape of the boundary between the upper surface and the inner peripheral surface of the outer wall of the cap body is an arcuate arcuate surface,
A seal ring hanging from the top plate is formed between the inner ring and the side wall of the upper lid, and an annular tongue having an inclined surface extending outward and inward on the inner peripheral edge of the lower end of the seal ring. Formed,
A hinge cap characterized in that when the upper lid is closed to the cap body, the inclined surface of the annular tongue piece is pressed against the arcuate surface of the outer wall. The hinge cap according to claim 1, wherein the upper surface of the outer wall and the lower surface of the seal ring are in contact with or close to each other when the upper lid is closed to the cap body. The hinge cap according to claim 2, wherein an outer peripheral surface of the seal ring and an inner side wall of the upper lid are intermittently bridged in the vicinity of the base on the top plate side of the seal ring.

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