JP7123829B2 - cap - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cap to be attached to the mouth of a container, and more particularly to a cap that enables stable pouring from a small amount to a large amount and has excellent sealing performance.

Conventionally, in a cap comprising a cap body that is attached to the mouth of a container and a lid body that closes the opening of the cap body, a pull ring or the like is attached to the planned opening portion of the cap body in order to ensure the tightness of the container. A septum having a formed cutout was provided.
In addition, a pouring cap is conventionally known in which upright guide walls are provided in the pouring tube, and the liquid is guided between the guide walls so that the liquid can be poured stably in a narrow width from the tip of the pouring tube. (See, for example, Patent Document 1).

If the cap has a removal part like the cap described in Patent Document 1, it is necessary to remove the removal part by pulling a pull ring or the like after opening the lid in order to open the removal part, which is troublesome. At the same time, there is a problem that users with weak strength have difficulty in unplugging.
Therefore, the inner lid having an inner ring that seals the pouring tube of the cap body is slidably held by the outer lid as a cap that does not require unplugging work, and the inner lid moves to the pouring tube in conjunction with the movement of the outer lid. A hinge cap that can be attached and detached from the mouth of the container and can be opened with one action to take out the contents has been known (see, for example, Patent Document 2).

Japanese Patent No. 5512421 JP 2014-162499 A

The cap described in Patent Document 2 above focuses on improving the unsealability of being able to be opened with a single operation, and when the container is dropped before the consumer uses the content liquid There is a problem that the liquid inside the container adheres to the inner surface of the lid or the liquid leaks due to the impact.
Also, if a large circular pouring tube is used, even if there is no problem when pouring a small amount, when pouring a medium or large amount, the liquid may be disturbed or the pouring may be interrupted. Immediately after, the flow becomes turbulent and the surroundings become dirty, making stable pouring impossible.

An object of the present invention is to solve the above problems, and to prevent the liquid from leaking from the sealing portion between the pouring tube of the cap body and the sealing tube (inner ring) due to the impact such as dropping of the container. To provide a cap capable of stably pouring from a small amount to a large amount.

In order to solve the above problems, the present invention provides a cap comprising a cap body attached to the mouth of a container and a lid body closing the opening of the cap body, wherein the cap body is a container a mounting portion mounted on the mouth of the container; a base wall extending inwardly from the mounting portion; and a first pouring tube standing from the inner edge of the base wall, A spout edge projecting inward from the lower end and forming a spout is provided. On the opposite side to the top wall, a rectifying plate protruding downward inside and forming an outside air introduction hole is provided. and a second seal cylinder vertically installed inside the first seal cylinder. A first seal portion is formed to be inserted and sealed, and the second seal cylinder comes close to or abuts the edge of the edge of the spout and the inner peripheral surface of the second pour cylinder on the outer peripheral side when the lid is closed. A configuration is adopted in which a second seal portion is formed.

As an embodiment of the cap, the spout formed by the edge of the spout rim has a circular shape or a modified shape other than a circular shape, and the outer peripheral shape of the second seal cylinder has the same shape as the spout. Employ a configuration characterized by:

As a specific embodiment of the cap, the first pouring tube is formed with a first lip portion that spreads outward at the top, and the second pouring tube is formed with a second lip portion that spreads outward at the top. a configuration characterized in that the spout edge slopes inward and downward; and the spout formed by the edge of the spout edge has a spout side, A configuration is adopted in which a beam portion projecting downward from the edge portion is formed so as to connect the edge portions at an intermediate portion on the side opposite to the pouring direction.

Furthermore, as a specific embodiment of the cap, a structure characterized by being a hinge cap comprising a cap body and a lid body connected via a hinge is adopted.

By adopting the above-described structure, the cap of the present invention maintains the airtightness of the container by the double sealing of the first sealing portion and the second sealing portion, and prevents impact such as dropping while the lid is closed. Also, the content liquid does not leak from the first seal portion.
In addition, by providing a small second pouring tube in the first pouring tube, it becomes easy to pour out a small amount, and even when pouring a medium to large amount, the rectifying plate and the outside air introduction hole can be used. Fluid turbulence is eliminated, and stable pouring without liquid splashing becomes possible.

FIG. 4 is a side cross-sectional view showing a state in which the cap of the present invention is attached to a container in a closed state. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the open lid state of the cap of this invention, (a) is a top view, (b) is side sectional drawing. It is an explanatory view at the time of pouring, (a) is a side cross-sectional view at the time of pouring a small amount, (b) is a view showing the pouring port at the time of pouring a small amount, and (c) is a view at the time of pouring a large amount. It is a side sectional view, and (d) is a figure which shows a spout at the time of a large amount pouring.

The cap of the present invention will now be described with reference to the drawings showing an embodiment embodied as a hinge cap.

In FIG. 1, A is a container, B is a cap body attached to the container A, C is a hinge, and D is a lid attached to the cap body B via the hinge C so as to be openable and closable.
The container A has a mouth portion 1 at the top, and a fitting ridge 2 is provided on the outer peripheral surface of the mouth portion 1 .

As shown in FIGS. 1 and 2, the cap main body B includes a mounting portion 3 mounted on the mouth portion 1 of the container A, a base wall 4 extending inwardly from the upper end of the inner edge of the mounting portion 3, and a base wall. A first pouring tube 5 erected from the inner edge of the wall 4 is provided.
In this embodiment, the side opposite to the hinge C (the pouring side) of the first pouring tube 5 is formed higher than the hinge C side, and the upper part spreads like a trumpet. 1 lip portion 5a is formed.

The first pouring tube 5 has a pouring outlet edge 7 protruding inward from the lower end thereof, the pouring outlet edge 7 sloping inward and downward, and the pouring side opposite to the hinge C of the edge 7a. A small second pouring tube 8 is erected within a predetermined range, and in the present embodiment, like the first pouring tube 5, a second lip portion 8a is formed on the top like a trumpet.
The shape of the opening of the spout a formed by the edge 7a of the spout edge 7 is elongated in the direction connecting the hinge C and the opposite pouring direction, as shown in FIG. 2(a). It has a substantially rhombic shape.
In this embodiment, as shown in FIG. 2A, the range of the second pouring tube 8 is between the pouring side and the central portion of the substantially rhomboidal pouring port a. If it exceeds the hinge side from the part, the content liquid will enter between the first pouring tube 5 and the liquid return during pouring, and the liquid return will be poor. It is desirable to reach near the center of the spout a.

Further, the outlet edge portion 7 is provided with a rectifying plate 10 inclined inward and downward within a predetermined range on the hinge C side of the edge portion 7a. .
As shown in FIG. 2(a), the range of the rectifying plate 10 is between the hinge C side and the central portion of the outlet a, and extends to the vicinity of the central portion of the outlet a similarly to the second outlet tube 8. is.
In addition, in this embodiment, a beam portion 9 projecting downward from the edge portion 7a is formed so as to connect the short diameter portion of the pouring port a having a substantially diamond-shaped opening. can also be provided with a gate for use during molding.
The beam portion 9 facilitates molding, but also serves to prevent the content liquid from rushing into the spout a when pouring out a medium to large amount of the content liquid, thereby preventing turbulence in the liquid flow. have.

The mounting portion 3 is provided with a locking ridge 12 on its peripheral edge, and includes an annular lid engaging portion 13 that engages with the lid body D, and an inner cylinder 14 vertically provided from the inner peripheral side of the lid engaging portion 13 . , and an outer peripheral wall 15 extending vertically from the outer peripheral side of the lid engaging portion 13 .
The outer peripheral wall 15 is provided with an engaging protrusion 16 that engages with the fitting protrusion 2 of the mouth portion 1 of the container A at the inner peripheral lower portion.

As shown in FIG. 2(a), a substantially V-shaped outer peripheral notch 17 is formed on the outer peripheral wall 15 near the left or right of the hinge C, leaving a thin bottom wall at the lower end. Notched from above.
At a position corresponding to the outer peripheral cut portion 17 of the engaging protrusion 16, an inner peripheral cut portion (not shown) is cut in the vertical direction to form a vertical tear line.

On the hinge C side of the outer peripheral cut portion 17, a slit groove 18 is recessed from above so as to extend in the circumferential direction starting from a position across the upper thin portion on the inner peripheral side of the end face 17a. , extending over approximately 345° starting from the end face 17a.
In addition, a thin connecting portion 19 connecting the outer peripheral wall 15 and the lid engaging portion 13 is provided on the inner peripheral side of the bottom surface of the slit groove 18 with the starting point of the slit groove 18 adjacent to the vertical tearing line as the starting point of tearing. A circumferential tear line is formed extending in an arc so that it can be torn to an unbreakable connection at the end point.

As shown in FIGS. 1 and 2, the lid D is rotatably attached to the outer peripheral upper end of the outer peripheral wall 15 of the cap body B via a hinge C. and a side peripheral wall 31 extending vertically from the peripheral edge of the housing.
The top wall 30 has a first seal cylinder 32 and second seal cylinders 33 located inside and outside the first seal cylinder 32 extending vertically from the inner surface of the top wall 30 .
In this embodiment, the spout a is substantially diamond-shaped, and accordingly, the outer peripheral shape of the second seal cylinder 33 is also substantially rhombic-shaped, as shown in FIG. 2(a).

The first sealing tube 32 is formed with a normal first sealing portion b that is inserted into the upper portion of the inner peripheral surface of the first pouring tube 5 to establish a sealed state when the lid is closed.
When the lid is closed, the second sealing tube 33 is close to or abuts the edge 7a of the spout edge 7 on the outer peripheral side and the inner peripheral surface of the second pouring tube 8 on the side opposite to the hinge C. They are formed so as to be in contact with each other, and form a second seal portion c together with the spout edge portion 7 .
The position of the second seal portion c may be any position as long as it is below the first seal portion b.

The second seal cylinder 33 requires a large force to peel off both the first seal portion b and the second seal portion c when the lid body D is opened, making it difficult to open the lid. When contacting, it is preferable to make light contact, and in this embodiment, as shown in FIG. At the top, they are close.
The second seal portion c formed by the second seal cylinder 33 on the side opposite to the hinge C and the second extraction cylinder 8 may be close to each other over the entire surface.
In the hinge cap of the present invention, the cap is sealed by the double seal of the first seal portion b and the second seal portion c, and the second seal portion c suppresses the impact caused by the content liquid caused by dropping or the like. Also, even if the content liquid enters the second seal portion c, the content liquid is retained due to the space between the second seal portion c and the first seal portion b, and the liquid content does not leak from the first seal portion b. .

An engaged portion 34 that engages with the lid engaging portion 13 of the cap main body B is provided on the inner peripheral lower portion of the side peripheral wall 31 . 12 to maintain the closed state.
An arcuate grip portion 36 extends circumferentially from the outer periphery of the side peripheral wall 31 on the side opposite to the hinge C, and a finger hook portion 37 is provided on the lower surface of the central portion of the grip portion 36 .

The hinge cap of this embodiment is provided with a shrink label, a sealing member, etc. between the cap body B and the lid D, although not shown, in order to prevent tampering before use.

Next, the mode of use and effects of this embodiment will be described.
In the hinge cap of this embodiment, first, the lid body D is rotated via the hinge C from the state shown in FIG. 2 to cover the cap body B and close the lid.

At this time, the outer peripheral lower portion of the first seal cylinder 32 of the lid D is brought into close contact with the inner peripheral upper portion of the first pouring cylinder 5 of the cap body B to form the first seal portion b and the second seal. The tube 33 is in contact with the edge 7a of the outlet edge 7 on the outer peripheral side and close to or in contact with the inner peripheral surface of the second pouring tube 8 on the side opposite to the hinge C to form the second sealing portion c. be done.

Next, as shown in FIG. 1, the closed hinge cap is attached to the opening 1 of the container A filled with the content liquid by plugging.
In the plugging process, the mouth portion 1 of the container A is applied to the annular groove formed between the inner cylinder 14 and the outer peripheral wall 15 of the mounting portion 3, and a pressing force is applied from the top of the lid D, and the outer peripheral wall The engaging protrusion 16 of 15 rides over the fitting ridge 2 of the mouth portion 1 and is fitted, and the mouth portion 1 of the container A is connected to the outer periphery of the inner cylinder 14, the inner periphery of the outer peripheral wall 15, and the lid engaging portion 13. It is mounted by being sandwiched by and.

In the hinge cap of the present embodiment, when the lid is closed, the first seal cylinder 32 of the lid body D forms a first seal portion b and a second seal portion b between the upper inner peripheral portion of the first pouring cylinder 5 of the cap body B and the second seal portion. Doubly sealed by the edge portion 7a of the outlet edge portion 7 on the outer peripheral side of the tube 33 and the second seal portion c formed by the inner peripheral surface of the second pouring tube 8 on the side opposite to the hinge C. Thus, the airtightness of the container A is maintained, the impact of the content liquid caused by dropping or the like is suppressed by the second seal portion c, and even if the content liquid enters the second seal portion c, the first Since there is a space between the seal portion b, the content liquid is retained, and leakage of the content liquid from the first seal portion b can be prevented.

When opening the hinge cap for the first time to use the content liquid in the container A for the first time, the shrink label and the sealing member provided between the cap body B and the lid body D are removed (not shown). There is a need.

Next, when the handle portion 36 is lifted by putting a finger on the finger hook portion 37 of the lid D, the second seal cylinder 33 of the lid D is first released from the second seal portion c of the spout edge 7, and then The first sealing tube 32 can be easily sealed by simply tilting the container A by removing the first sealing portion b between the cap main body B and the first pouring tube 5 and opening the lid D. The content liquid in the container A can be poured out from the pouring tube 5 .

When pouring out a small amount of the liquid content, as shown in FIGS. 3(a) and 3(b), the liquid content passes through the second pouring tube 8, the flow of the liquid content is suppressed, and the liquid content flows through the first pouring tube. It becomes a thin stream from 5 and is poured out smoothly.
When the content liquid is to be poured out in a medium amount, the content liquid is poured out from the first pouring tube 5 by flowing from the pouring port a on the side of the second pouring tube 8 together with the second pouring tube 8, but the center of the flow is Since it passes through the second pouring tube 8, the liquid can be poured out smoothly without disturbance.
Further, in this embodiment, since the second lip portion 8a is formed at the tip of the second pouring tube 8, liquid turbulence is further suppressed, making pouring easier.

When pouring out a large amount of the content liquid, the content liquid rushes to the entire pouring port a at once, and the pouring may be interrupted and the liquid may be disturbed. As shown in FIGS. 3(c) and 3(d), since the rectifying plate 10 is provided on the hinge C side, the flow of the content liquid is suppressed, and the content liquid rushes to the hinge C side of the spout a. In addition, since the outside air introduction hole 11 is provided in the upper part of the rectifying plate 10, the content liquid can be smoothly sent into the first pouring tube 5, and the content liquid can be easily poured out. .
In addition, the provision of the second pouring tube 8 suppresses the flow of the content liquid, thereby preventing unstable pouring.

By closing the lid D to the cap main body B again, the outer peripheral side of the second seal cylinder 33 of the lid D is positioned between the edge portion 7a of the pouring port edge portion 7 and the inside of the second pouring pipe 8 on the pouring side. The second seal portion c is formed in close proximity to or in contact with the peripheral surface, and the outer periphery of the first seal cylinder 32 is in close contact with the upper inner periphery of the first pouring tube 5 of the cap body B to form the first seal portion b. is formed, the inside of the cap body B can be sealed with a double seal, and the hinge cap can be used by opening and closing the lid D repeatedly.

The hinge cap of this embodiment can be separated from the mouth portion 1 of the container A and discarded after the content liquid in the container A is completely used.
When the hinge cap is opened and the lid body D is grasped with fingers and pulled outward, the part of the outer peripheral wall 15 connected to the hinge C is pulled and deformed, the vertical tear line is broken, and the lid is pulled. When the body D is pulled, the thin connecting portion 19 forming the tear line in the circumferential direction starts breaking, and as the breaking of the thin connecting portion 19 progresses, the lid D separates from the cap main body B.
When the breakage of the thin connecting portion 19 is completed at the terminal end of the slit groove 18 and the lid D is further pulled, the fitting between the cap main body B and the mouth portion 1 of the container A is released, and the hinge cap and the container A are separated. Can be disposed of separately.

In this embodiment, a hinge cap is described as a specific example of the cap, but a screw cap including a cap body B and a lid D may also be used.
In addition, in this embodiment, the shape of the pouring port a is substantially rhombic due to the pouring port edge 7, but the shape of the pouring port a may be circular, elliptical, fan-shaped, gourd-shaped, or vertically elongated. It is possible to make various deformed shapes such as.

The cap of the present invention is hermetically sealed by the double seal of the first seal portion and the second seal portion to maintain the airtightness, and the impact caused by the content liquid caused by dropping or the like while the lid is closed is prevented by the second seal portion. Even if the content liquid enters the second seal portion, the content liquid does not leak from the first seal portion because there is a space between the second seal portion and the first seal portion.
In the first pouring tube, a second pouring tube is provided at the pouring side end of the pouring port edge, and a rectifying plate and an outside air introduction hole are provided at the end opposite to the pouring direction. Therefore, it can be stably poured from a small amount to a large amount, and can be widely applied as a cap for various containers.

A Container B Cap Body C Hinge D Lid Body a Spout b First Seal Part c Second Seal Part 1 Mouth Part 2 Fitting Ridge 3 Mounting Part 4 Base Wall 5 First Pour Out Tube 5a First Lip Part 7 Note Outlet edge portion 7a Edge portion 8 Second pouring tube 8a Second lip portion 9 Beam portion 10 Straightening plate 11 Outside air introduction hole 12 Locking protrusion 13 Lid engaging portion 14 Inner cylinder 15 Outer peripheral wall 16 Engaging protrusion 17 Outer peripheral cut portion 17a End face 18 Slit groove 19 Thin connecting portion 30 Top wall 31 Side peripheral wall 32 First seal tube 33 Second seal tube 34 Engaged portion 35 Engagement concave portion 36 Handle portion 37 Finger hook portion

Claims (6)

A cap comprising a cap body attached to the mouth of a container and a lid closing the opening of the cap body,
The cap body includes a mounting portion mounted on the mouth of the container, a base wall extending inwardly from the mounting portion, and a first pouring tube standing from the inner edge of the base wall,
The first pouring cylinder has a spout edge projecting inward from the lower end and forming a spout,
The edge of the pouring outlet includes a second pouring tube erected on the pouring side of the edge, and a rectifying plate projecting inward and downward on the side opposite to the pouring direction and forming an outside air introduction hole. prepared,
The lid body includes a top wall, a side peripheral wall vertically provided on the peripheral edge of the top wall, a first seal cylinder vertically provided from the inner surface of the top wall, and a second seal cylinder vertically provided inside the first seal cylinder. and a seal cylinder,
The first seal cylinder is formed with a first seal portion that is inserted into the inner peripheral surface of the upper part of the first extraction cylinder when the lid is closed and is in a sealed state,
The cap is characterized in that the second sealing tube is formed with a second sealing portion that is close to or abuts on the edge of the edge of the spout and the inner peripheral surface of the second pouring tube on the outer peripheral side when the lid is closed. The spout formed by the edge of the spout edge has a circular shape or a deformed shape other than a circular shape, and the outer peripheral shape of the second seal cylinder is the same shape as the spout. A cap according to claim 1. The first pouring tube is formed with a first lip portion that spreads outward at the top,
3. The cap according to claim 1 or 2, wherein the second pouring tube has a second lip portion formed on the upper portion thereof, the second lip portion spreading outward. A cap according to any one of claims 1 to 3, characterized in that the spout edge is slanted downward inward. The pouring port formed by the edge of the pouring port edge has an intermediate portion between the pouring side and the side opposite to the pouring direction, and projects downward from the edge so as to connect the edges. 5. The cap according to any one of claims 1 to 4, wherein a beam portion is formed. 6. The cap according to any one of claims 1 to 5, wherein the cap is a hinge cap comprising a cap main body and a lid body connected via a hinge.

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