JP7274985B2 - pouring cap - Google Patents

Description

The present invention relates to spout caps.

Patent Literature 1 discloses a cap body having a top wall portion formed with a pouring hole through which contents are poured out, a cap body attached to the mouth of a container body, and a cap body that closes the pouring hole so as to be openable. A pouring cap is disclosed that includes a cylindrical lid and an intermediate plate member that covers the mouth of a container body and has a communication hole formed therein for communicating the pouring hole with the inside of the container body.

JP 2014-196135 A

With this type of pouring cap, the contents are unexpectedly and vigorously poured out from the pouring hole, which sometimes makes it difficult to adjust the pouring amount.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a pouring cap capable of suppressing vigorous pouring of contents.

In order to solve the above problems, a pouring cap according to one aspect of the present invention has a top wall portion formed with a pouring hole through which contents are poured out, and is attached to the mouth portion of a container body. A main body, a capped cylindrical cover that openably closes the pouring hole, and a communication hole that covers the upper end opening of the mouth and communicates the pouring hole with the inside of the container body. and a middle plate member, wherein the communicating hole and a portion of the ceiling wall portion where the pouring hole is not formed face each other in the vertical direction, and the inner surface of the communicating hole has the above-mentioned An inclined surface extending away from the pouring hole is formed, and the intermediate plate member is formed with a wall portion protruding upward. and the wall portion is curved to be convex toward the pouring hole .

According to the above aspect, when the content is directed toward the top wall portion through the communication hole, at least a part of the content hits the inclined surface, and the traveling direction of the content changes away from the pouring hole. Therefore, direct flow of a large amount of the contents from the communication hole toward the pouring hole is suppressed, and it is possible to prevent the contents from being vigorously poured out from the pouring hole. Therefore, it becomes easier to adjust the pouring amount, and the operability can be improved. In addition, since at least part of the contents hits the wall portion when the contents move from the communication hole to the pouring hole, the momentum of the contents can be weakened more reliably. Moreover, when the content is directed from the communication hole to the pouring hole, at least part of the content flows along the wall so as to detour. Then, when the content flows along the wall, the direction of the flow is the rear, that is, the direction away from the pouring hole. Therefore, the momentum of the contents toward the pouring hole can be weakened more reliably.

Further, the intermediate plate member may be formed with an alignment portion for aligning the positions of the intermediate plate member and the cap main body around the cap axis.

In this case, when manufacturing the pouring cap, it is easy to align the relative positions of the intermediate plate member and the cap body around the cap axis. As a result, the communication hole and the ceiling wall portion can more reliably face each other in the vertical direction.

According to the aspect of the present invention, it is possible to provide a pouring cap capable of suppressing the vigorous pouring of the contents.

4 is a plan view of the pouring cap according to the embodiment; FIG. 2 is a cross-sectional view of the container with the pour cap of FIG. 1, taken along line II-II of FIG. 1; FIG. 3 is a plan view of the midplate member of FIG. 2; FIG. FIG. 3 is a diagram showing a state in which the container of FIG. 2 is used; FIG. 11 is a plan view of a middle plate member according to a modification of the embodiment;

Hereinafter, the pouring cap of the present embodiment and a container provided with the pouring cap will be described based on the drawings.
As shown in FIGS. 1 and 2, the container 1 includes a container body 2 and a pouring cap 3 attached to the mouth portion 2c of the container body 2. As shown in FIGS. The container body 2 of this embodiment is a double container (delaminated container) having an outer container 2a and an inner container 2b, and a spout cap 3 is attached to the mouth portion 2c of the inner container 2b. Such a double container can be formed, for example, by setting an inner preform made of PET resin on an outer preform and blow-molding them. The outer container 2a is formed with a through hole 2d for introducing outside air between the outer container 2a and the inner container 2b. Note that the container body 2 may not be a double container.

The pouring cap 3 includes a cap body 10 attached to the mouth portion 2c of the container body 2, a topped cylindrical lid body 20 for releasably closing the pouring hole 14a formed in the cap body 10, and a mouth. and an intermediate plate member 30 having a communication hole 31a that covers the upper end opening of the portion 2c and communicates the pouring hole 14a and the inside of the container body 2 with each other. In this embodiment, the lid body 20 and the cap body 10 are integrally formed, and the lid body 20 is connected to the cap body 10 so as to be rotatable around a hinge H. However, the lid body 20 and the cap main body 10 may be separate bodies.

The lid body 20 can be displaced between an open position (FIG. 1) that releases the pouring hole 14a and a closed position (FIG. 2) that closes the pouring hole 14a. In the following description, the positional relationship of each configuration when the lid body 20 is in the closed position (FIG. 2) will be described unless otherwise specified.

(direction definition)
In this embodiment, the central axis of the lid body 20 is called a cap axis O, and the direction along the cap axis O is called an up-down direction. In a plan view viewed from above and below, the direction intersecting the cap axis O is called the radial direction, and the direction rotating around the cap axis O is called the circumferential direction. The direction connecting the circumferential central portion of the hinge H and the circumferential central portion of the operation portion 21a formed on the lid body 20 is referred to as the front-rear direction. In the front-rear direction, the operating portion 21a side is referred to as the front, and the hinge H side is referred to as the rear. The hinge H and the operation portion 21a are arranged so as to sandwich the cap axis O therebetween in the front-rear direction.

As shown in FIG. 2, the cap body 10 includes a mounting cylinder portion 11, an upper plate portion 12, a ceiling wall portion 13, an extraction cylinder portion 14, an outside air introduction portion 15, and a first seal cylinder portion 16. ,have. The mounting tubular portion 11 is formed in a tubular shape extending in the vertical direction and is mounted on the container body 2 . In this embodiment, a female screw portion formed on the inner peripheral surface of the mounting cylinder portion 11 is screwed into a male screw portion formed on the outer peripheral surface of the outer container 2a. However, the mounting tube portion 11 may be mounted on the container body 2 by undercut fitting or the like.

The upper plate portion 12 extends radially inward from the upper end portion of the mounting tube portion 11 . As shown in FIG. 1 , the top plate portion 12 is formed in a substantially annular shape in plan view, and the top wall portion 13 is positioned inside the top plate portion 12 . In plan view, the ceiling wall portion 13 is formed in a circular shape, and the center thereof is located behind the cap axis O. As shown in FIG. As shown in FIG. 2 , the top wall portion 13 is positioned above the top plate portion 12 , and a step is formed at the connecting portion between the top plate portion 12 and the top wall portion 13 . It should be noted that the upper plate portion 12 and the step need not be formed. may be connected.

As shown in FIG. 2, the top wall portion 13 is formed with a pouring hole 14a penetrating the top wall portion 13 in the vertical direction. The central axis of the pouring hole 14a is positioned forward of the cap axis O. As shown in FIG. The pouring cylinder part 14 extends upward from the upper end opening edge of the pouring hole 14a. A lip portion is formed at the upper end portion of the pouring tube portion 14 so as to increase in diameter as it goes upward.

The outside air introduction portion 15 extends upward from the ceiling wall portion 13 . As shown in FIG. 1, the outside air introduction portion 15 is formed in an arc shape centering on the cap axis O in plan view. The outside air introduction part 15 is located behind the cap axis O. As shown in FIG. Two outside air introduction holes 15 a are formed in the upper end surface of the outside air introduction part 15 . The inside of the outside air introduction part 15 is hollow, and outside air is introduced into the space between the cap main body 10 and the intermediate plate member 30 through the outside air introduction hole 15a. In addition, when a double container is not adopted as the container body 2, the external air introduction part 15 may not be provided.

As shown in FIG. 2 , the first seal cylinder portion 16 extends downward from the ceiling wall portion 13 . The first seal cylinder portion 16 is formed coaxially with the cap axis O. As shown in FIG. The first seal cylinder portion 16 surrounds the pouring hole 14a from the radially outer side.

The lid body 20 has a top wall 21 , a peripheral wall 22 , a locking tubular portion 23 and a closing tubular portion 24 . The front end portion of the top wall 21 is formed with the aforementioned operating portion 21a. The operating portion 21a protrudes forward from the top wall 21 . The peripheral wall 22 extends downward from the outer peripheral edge of the top wall 21 . The locking tubular portion 23 and the closing tubular portion 24 are positioned radially inward of the peripheral wall 22 and extend downward from the top wall 21 . A lower end portion of the locking cylinder portion 23 is locked to an annular protrusion formed at a connecting portion between the upper plate portion 12 and the top wall portion 13 , thereby closing the lid body 20 with respect to the cap body 10 . state is maintained.

The closing tube portion 24 is positioned radially inside the locking tube portion 23 and is fitted into the pouring tube portion 14 . As a result, the closed tubular portion 24 closes the pouring hole 14 a and the pouring tubular portion 14 . When the lid body 20 is in the open position (FIG. 1), the closing cylinder part 24 is detached from the pouring tube part 14, and the pouring hole 14a is opened.

As shown in FIG. 2, the intermediate plate member 30 includes an intermediate plate portion 31, a fitting tubular portion 32, a second sealing tubular portion 33, an outer tubular portion 34, a wall portion 35, and an alignment portion 36. ,have. The intermediate plate portion 31 is formed in a substantially disk shape and is in contact with the mouth portion 2c from above. The outer peripheral surface of the intermediate plate portion 31 is fitted into the mounting cylinder portion 11 of the cap body 10 . A fitting portion is formed on the inner peripheral surface of the mounting cylinder portion 11 so as to fit the middle plate portion 31 by an anger cut. With these configurations, the intermediate plate member 30 is held by the cap body 10 even before the pouring cap 3 is attached to the container body 2 .

A communication hole 31 a is formed in the intermediate plate portion 31 . The communication hole 31 a is positioned rearward of the cap shaft O and radially inward of the second seal cylinder portion 33 . The communication hole 31 a penetrates the intermediate plate portion 31 in the vertical direction, and communicates the space inside the container body 2 with the space inside the second seal cylinder portion 33 . The communication hole 31a faces a portion of the top wall portion 13 where the pouring hole 14a is not formed in the vertical direction.

An inclined surface 31b is formed on the inner surface of the communication hole 31a. As shown in FIG. 1, the inclined surface 31b is formed at the front end of the communication hole 31a. In other words, the inclined surface 31b is formed on the inner surface of the communication hole 31a, which is located closest to the pouring hole 14a in plan view. As shown in FIG. 2, the inclined surface 31b is inclined rearward as it goes upward. In other words, the inclined surface 31b extends away from the pouring hole 14a as it goes upward.

The fitting cylinder portion 32 extends downward from the intermediate plate portion 31 and is formed coaxially with the cap axis O. As shown in FIG. The fitting tubular portion 32 is fitted inside the mouth portion 2 c of the container body 2 .
The second seal cylinder portion 33 extends upward from the intermediate plate portion 31 and is formed coaxially with the cap axis O. As shown in FIG. The upper end portion of the second seal cylinder portion 33 is fitted to the first seal cylinder portion 16 from the radially outer side. As a result, the contents are prevented from leaking out of the second seal tube portion 33 in the radial direction when the contents are directed from the communication hole 31a to the pouring hole 14a.

The outer cylindrical portion 34 extends upward from the intermediate plate portion 31 and is formed coaxially with the cap axis O. As shown in FIG. As shown in FIG. 3, a plurality of ribs 34a are formed on the outer peripheral surface of the outer cylindrical portion 34. As shown in FIG. The plurality of ribs 34 a are provided at intervals in the circumferential direction, and prevent rotation of the intermediate plate member 30 about the cap axis O with respect to the cap body 10 . Further, the gap between the ribs 34a serves as an outside air flow path for introducing outside air between the outer container 2a and the inner container 2b. In addition, the outside air passage is constituted by the outside air introduction hole 15a, the gap between the ribs 34a, the through hole 2d, and the like.

As shown in FIG. 2 , the wall portion 35 protrudes upward from the intermediate plate portion 31 . As shown in FIG. 3 , the wall portion 35 is curved so as to be convex toward the alignment portion 36 in plan view. In other words, the wall portion 35 is curved so as to be convex forward. Further, the wall portion 35 is located between the communication hole 31a and the alignment portion 36 in plan view. A gap is formed between the wall portion 35 and the second seal cylinder portion 33 . This gap serves as a channel for the content to flow from the communication hole 31a toward the pouring hole 14a.

Although illustration is omitted, the positioning portion 36 and the pouring hole 14a are arranged at positions where at least parts thereof overlap each other in a plan view. The alignment portion 36 is used to align the intermediate plate member 30 and the cap body 10 around the cap axis O when manufacturing the pouring cap 3 . Further, as shown in FIG. 1, in a plan view, the wall portion 35 is curved so as to protrude toward the pouring hole 14a.

As shown in FIG. 2, the positioning portion 36 of the present embodiment is formed in a cylindrical shape with a bottom and protrudes downward from the intermediate plate portion 31 . The alignment portion 36 is located forward of the cap shaft O and the communication hole 31a. Note that the shape of the alignment portion 36 may be changed as appropriate. For example, the alignment portion 36 may be a protrusion (cylindrical boss, rib, etc.) that protrudes upward from the intermediate plate portion 31 .

Next, the operation of the pouring cap 3 constructed as above will be described.

When using the container 1 provided with the pouring cap 3, first, the operating portion 21a is operated to rotate the lid 20 around the hinge H, thereby opening the lid 20. As shown in FIG. As a result, the closed tubular portion 24 is separated from the pouring tubular portion 14, and the pouring hole 14a is opened.
Next, as shown in FIG. 4, the container 1 is tilted. Note that the container body 2 may be squeeze-deformed while tilting the container 1 . Then, the contents in the container main body 2 flow toward the top wall portion 13 through the communication hole 31a.

Here, in this embodiment, an inclined surface 31b is formed on the inner surface of the communication hole 31a. Therefore, at least a part of the contents flows along the path indicated by the two-dot chain line in FIG. That is, at least part of the contents flows rearward (to the hinge H side) by hitting the inclined surface 31b when passing through the communication hole 31a upward (toward the ceiling wall portion 13). Then, while being guided by the ceiling wall portion 13, the first seal cylinder portion 16, and the second seal cylinder portion 33, the liquid flows through the gap between the wall portion 35 and the second seal cylinder portion 33 and into the pouring hole 14a. Head. The contents are then discharged through the pouring hole 14a and the pouring tube portion 14. As shown in FIG.

By directing at least a portion of the contents toward the rear, ie, the side away from the pouring hole 14a by the inclined surface 31b, the momentum of the contents poured out from the pouring hole 14a can be weakened.

As described above, the pouring cap 3 of the present embodiment has the top wall portion 13 formed with the pouring hole 14a through which the content is poured out, and is attached to the mouth portion 2c of the container body 2. A main body 10, a capped cylindrical lid 20 for releasably closing the pouring hole 14a, and a communication hole 31a covering the upper end opening of the mouth part 2c and allowing the pouring hole 14a and the inside of the container body 2 to communicate with each other. and a middle plate member 30 formed with The communicating hole 31a and the portion of the top wall portion 13 where the pouring hole 14a is not formed face each other in the vertical direction. An extending inclined surface 31b is formed.

With this configuration, when the content is directed toward the top wall portion 13 through the communication hole 31a, at least a part of the content hits the inclined surface 31b, and the traveling direction of the content changes away from the pouring hole 14a. Therefore, direct flow of a large amount of the contents from the communication hole 31a toward the pouring hole 14a is suppressed, and it is possible to prevent the contents from being vigorously poured out from the pouring hole 14a. Therefore, it becomes easier to adjust the pouring amount, and the operability can be improved.

A wall portion 35 protruding upward is formed in the intermediate plate member 30, and the wall portion 35 is positioned between the pouring hole 14a and the communicating hole 31a in plan view. With this configuration, when the contents move from the communication hole 31a to the pouring hole 14a, at least part of the contents hits the wall 35, so that the force of the contents moving toward the pouring hole 14a can be weakened more reliably. can.

Moreover, in plan view, the wall portion 35 is curved so as to be convex toward the pouring hole 14a. As a result, at least part of the content flows along the wall portion 35 so as to bypass the content when the content is directed from the communication hole 31a to the pouring hole 14a. Then, when the contents flow along the wall portion 35, the direction of the flow is the rear, that is, the direction away from the pouring hole 14a. Therefore, the momentum of the contents toward the pouring hole 14a can be weakened more reliably.

Further, the intermediate plate member 30 is formed with an alignment portion 36 for aligning the positions of the intermediate plate member 30 and the cap main body 10 around the cap axis O. As shown in FIG. As a result, the relative positions of the intermediate plate member 30 and the cap main body 10 around the cap axis O can be aligned, and the communication hole 31a and the top wall portion 13 can more reliably face each other in the vertical direction. When manufacturing the pouring cap 3, for example, an assembly jig and the cap main body 10 are aligned in advance, and the alignment portion 36 is inserted into the concave portion of the jig so that the intermediate plate member The positions around the cap axis O of the cap body 10 and the cap body 10 may naturally match.

The technical scope of the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the present invention.

For example, wall 35 may not be provided. Even in this case, the above effect can be obtained by forming the inclined surface 31b in the communicating hole 31a.
Also, the shape of the wall portion 35 may be changed as appropriate. For example, although the wall portion 35 was curved in the above-described embodiment, the wall portion 35 may extend straight in plan view. Alternatively, as shown in FIG. 5, a plurality of walls 35 may be intermittently provided.

Further, instead of the wall portion 35 or in addition to the wall portion 35, a wall portion protruding downward from the top wall portion 13 may be formed.

In addition, it is possible to appropriately replace the components in the above-described embodiments with well-known components without departing from the scope of the present invention, and the above-described embodiments and modifications may be combined as appropriate.
For example, the pouring cap 3 of this embodiment may be attached to a normal container body that is not a double container (delaminated container). According to this embodiment, only by changing the shape of the intermediate plate member 30, it is possible to deal with a plurality of types of containers including delaminated containers and normal containers without changing other members.

DESCRIPTION OF SYMBOLS 2... Container main body 2c... Mouth part 3... Spout cap 10... Cap main body 13... Ceiling wall part 14a... Spout hole 20... Cover body 30... Intermediate plate member 31a... Communication hole 31b... Inclined surface 35... Wall part 36... Alignment part

Claims (2)

a cap main body having a top wall portion formed with a pouring hole through which the content is poured out, and attached to the mouth portion of the container main body;
a capped tubular cover that releasably closes the pouring hole;
an intermediate plate member that covers the upper end opening of the mouth portion and has a communication hole that communicates between the pouring hole and the inside of the container body;
the communicating hole and the portion of the top wall portion where the pouring hole is not formed face each other in the vertical direction,
The inner surface of the communicating hole is formed with an inclined surface extending upward and away from the pouring hole ,
The intermediate plate member is formed with a wall portion protruding upward,
The pouring cap, wherein the wall portion is positioned between the pouring hole and the communicating hole in a plan view, and the wall portion is curved so as to protrude toward the pouring hole. 2. The pouring cap according to claim 1 , wherein said intermediate plate member is formed with an alignment portion for aligning positions of said intermediate plate member and said cap body around a cap axis.

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