JP2022182711A - Pouring cap with lid - Google Patents

Abstract

To provide a pouring cap with a lid that maintains a function as a check valve even when pouring a solidified content.SOLUTION: A pouring cap with a lid includes a pouring cap 1 and lid body 5. The pouring cap 1 includes: a partition wall 2a that covers a mouth portion 12a when attached to the mouth portion 12a of a container 10; a communication port 2d that is provided in the partition wall 2a for providing communication between an accommodation space S and a pouring port 4c; a pouring valve 3c that is supported by an elastic portion 3g and is seated on the partition wall 2a to close the communication port 2d, and opens the communication port 2d by elastically deforming the elastic portion 3g to separate from the partition wall 2a when a content is poured out from the pouring port 4c. The lid body 5 includes a rod-shaped portion 5c that is inserted into the pouring port 4c when a lid is closed. The pouring valve 3c has an engaging portion 3f. The rod-shaped portion 5c has an engaged portion 5f that engages with the engaging portion 3f when the lid is closed.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a lidded pouring cap that is used by being attached to the mouth of a container.

A pouring cap attached to the mouth of a container containing contents to allow the contents to be poured out from the pouring spout, and a lidded pouring cap comprising a cover that covers the pouring spout and is held by the pouring cap so that it can be opened and closed. Exit caps are known.

As such a lidded pouring cap, for example, Patent Document 1 discloses a hinge cap attached to the mouth of an elastically deformable container. Further, Patent Document 2 discloses a pouring cap to be attached to a double container (also referred to as a delaminated container or delamination container) composed of an inner layer body and an outer layer body.

In addition, as disclosed in Patent Documents 1 and 2, this type of pouring cap with a lid is provided with a check valve that suppresses contact between the contents housed in the housing space of the container and the outside air. there is something In Patent Literatures 1 and 2, the check valve is supported by an elastic portion and is provided with an extraction valve that normally closes a communication port leading to a housing space. That is, since the outlet valve normally closes the communication port, entry of outside air into the accommodation space is suppressed. Also, when the contents are to be poured out by pressing the container, the contents pass between the pouring valve and the communicating port because the pouring valve opens the communication port by deforming the elastic portion. Then, it is poured out to the outside world from the spout.

JP 2015-209234 A JP 2014-28642 A

By the way, when a container to which this type of pouring container with a lid is attached contains a content that solidifies when it comes into contact with air, such as dry oil, the content adhered to the pouring valve gradually solidifies. In this case, the function as a check valve may be impaired, and the contents may not be discharged.

In view of such a point, an object of the present invention is to provide a pouring cap with a lid that maintains its function as a check valve even when pouring solidified contents.

The present invention consists of a pouring cap attached to the mouth of a container for pouring contents stored in a housing space of the container through a pouring port, and a pouring cap covering the pouring port and held openably and closably by the pouring cap. A lidded pouring cap comprising a lid,
The pouring cap is supported by a partition wall that covers the mouth portion when attached to the mouth portion, a communication port that is provided in the partition wall and allows the accommodation space and the pouring port to communicate with each other, and is seated on the partition wall while being supported by an elastic portion. a pouring valve that closes the communication port by closing the communication port and opens the communication port by separating from the partition wall by elastically deforming the elastic portion when the content is poured from the pouring port,
The lid has a rod-shaped portion that is inserted into the spout when the lid is closed,
The pouring valve has an engaging portion, and the bar-like portion is a pouring cap with a lid having an engaged portion that engages with the engaging portion when the lid is closed.

It is preferable that the rod-shaped portion has a seal portion that contacts the spout when the lid is closed.

It is preferable to provide a bendable hinge portion that integrally connects the pouring cap and the lid.

In the pouring cap with a lid of the present invention, a rod-shaped portion to be inserted into the pouring spout is provided on the lid body, one of the pouring valve and the rod-shaped portion has an engaging portion, and the pouring valve and the rod-shaped portion have an engaging portion. Either one of the portions has an engaged portion that engages with the engaging portion when the lid is closed. That is, when the lid is opened, the pouring valve is lifted by the rod-shaped portion, so that the pouring valve, which has become difficult to move due to the solidification of the adhered contents, becomes easy to move again.

1 is a cross-sectional side view showing a first embodiment of a pouring cap with a lid according to the present invention; FIG. Fig. 2 is a cross-sectional side view showing a second embodiment of the lidded pouring cap according to the present invention;

An embodiment of the lidded pouring cap according to the present invention will be described below with reference to the drawings. Note that the vertical direction in this specification and the like is a direction along the illustrated axis O (the axis of the outer layer body 12 to be described later). Further, the radial direction is a direction orthogonal to the axis O within a plane perpendicular to the axis O, and the circumferential direction is a direction in which the axis O is the center of rotation within this plane.

FIG. 1 shows a first embodiment of a lidded pouring cap according to the present invention. The lidded pouring cap of this embodiment includes a pouring cap 1 (consisting of an inner plug 2, a valve member 3, and a cap body 4) and a lid body 5, and is attached to a container 10. As shown in FIG.

First, the container 10 will be explained. The container 10 of the present embodiment is a so-called double container (also called a delaminated container or delamination container), and is composed of an inner layer body 11 and an outer layer body 12 .

The inner layer body 11 is made of a thin synthetic resin and is capable of being reduced and deformed, and is provided with a storage space S in which contents can be stored.

The outer layer body 12 has a cylindrical opening 12a extending along the axis O. As shown in FIG. A male threaded portion 12b is provided on the outer peripheral surface of the mouth portion 12a. The mouth portion 12a also has a vent hole 12c that radially penetrates the mouth portion 12a. Further, the mouth portion 12a is provided with a notch 12d that extends vertically and divides the male screw portion 12b at a portion where the vent hole 12c opens. Although not shown, below the mouth portion 12a, a hollow flexible body and a bottom closing the lower end of the body are provided. None. Further, the outer layer body 12 of the present embodiment is made of synthetic resin, and the body has flexibility.

An internal space N is formed between the inner layer body 11 and the outer layer body 12 and communicates with the air vent 12c.

The inner plug 2 is provided with a partition wall 2a which is located above the mouth portion 12a and closes the accommodation space S by covering the mouth portion 12a. An inner tubular portion 2b having a bottomed tubular shape protruding downward is provided in the central portion of the partition wall 2a. The inner cylindrical portion 2b is provided with a through hole 2c that penetrates the bottom portion and the peripheral wall portion thereof and communicates with the housing space S and the inside of the inner cylindrical portion 2b. Here, the upper opening of the inner tubular portion 2b is referred to as a communication port 2d.

Further, the partition wall 2a has an annular recess 2e with an upper opening on the radially outer side of the inner tubular portion 2b. An outer edge wall 2f extending upward from the outer edge of the partition wall 2a is provided on the upper surface of the partition wall 2a radially outside the annular recess 2e. A connecting portion between the partition wall 2a and the outer edge wall 2f is provided with an air communication port 2g penetrating therethrough. An annular seal wall 2h is provided on the lower surface of the partition wall 2a so as to be in liquid-tight contact with the inner layer body 11. As shown in FIG.

The valve member 3 is made of an elastic material (eg, rubber, elastomer, soft polyethylene (low-density polyethylene), etc.). The valve member 3 has a cylindrical base 3a centered on the axis O and having a lower end supported by an annular recess 2e. A thin doughnut-shaped air valve 3b centered on the axis O and elastically deformable in the vertical direction is provided on the radially outer side of the base portion 3a.

A discharge valve 3c is provided radially inside the base portion 3a so as to cover the communication port 2d and contact the upper surface of the partition wall 2a. An annular wall 3d positioned radially inward of the inner cylindrical portion 2b is provided on the lower surface of the outlet valve 3c. The vertical length of the annular wall 3d is about half the vertical length of the inner tubular portion 2b, and extends relatively long. The vertical length of the annular wall 3d can be changed as appropriate, and may be shorter or longer than the illustrated example. At the lower end of the annular wall 3d, there is provided an inclined portion 3e whose diameter is reduced radially inward.

A bottomed cylindrical lower concave portion 3f protruding downward is provided in the central portion of the pouring valve 3c. As shown in the partially enlarged view of FIG. 1, the upper inner peripheral surface of the lower recessed portion 3f is shaped so as to bulge radially inward. The lower concave portion 3f corresponds to the "engagement portion" in this specification and the like.

A plurality of elastically deformable connecting pieces 3g are provided between the base portion 3a and the pouring valve 3c to integrally connect them. Note that the connecting piece 3g corresponds to the "elastic portion" in this specification and the like. Due to the elastic deformation of the connecting piece 3g, the extraction valve 3c normally in contact with the upper surface of the partition wall 2a moves upward and is separated from the partition wall 2a.

The cap body 4 includes a top wall 4a positioned above the valve member 3 and an outer peripheral wall 4b integrally connected to the outer edge of the top wall 4a and surrounding the mouth portion 12a. At the central portion of the top wall 4a, a spout 4c that penetrates the top wall 4a and a spout cylinder 4d that surrounds the spout 4c and extends upward are provided. The lower surface of the top wall 4a is provided with an annular recess 4e that opens downward and supports the upper end of the base portion 3a. A stepped portion 4f is provided. Further, the top wall 4a has an outside air introduction port 4g penetrating through the front and back of the stepped portion 4f on the radially inner side thereof. A holding projection 4h is provided on the outer edge of the upper surface of the ceiling wall 4a so as to project radially outward and hold the lid 5. As shown in FIG.

The outer peripheral wall 4b has a female threaded portion 4j on its inner peripheral surface that fits the male threaded portion 12b. The lower end of the outer peripheral wall 4b is in airtight contact with the outer peripheral surface of the mouth portion 12a when the cap body 4 is attached to the mouth portion 12a.

Further, in the state where the cap body 4 is attached to the mouth portion 12a, the passage from the air communication port 2g to the vent port 12c from the outside air introduction port 4g is via the notch 12d or the air communication port 2g. A communication path T is provided through a spiral gap formed between the male threaded portion 12b and the female threaded portion 4j. Although the notch 12d makes it easier for the air to flow through the communication path T, it may be omitted.

The lid body 5 includes a top wall 5a positioned above the ceiling wall 4a and a lid outer peripheral wall 5b integrally connected to the top wall 5a.

The lower surface of the central portion of the top wall 5a is provided with a rod-shaped portion 5c that passes through the inside of the pouring tube 4d and is inserted into the pouring port 4c when the lid is closed. The bar-shaped portion 5c is generally cylindrical, and the diameter of the tip portion 5e is smaller than the outer diameter of the root portion 5d connected to the top wall 5a. The base portion 5d is a portion corresponding to the "seal portion" in this specification and the like, and contacts the spout 4c when the lid is closed. An upper convex portion 5f that is inserted into the lower concave portion 3f is provided at the end of the tip portion 5e. As shown in the partial enlarged view of FIG. 1, the lower outer peripheral surface of the upper protrusion 5f is shaped so as to be recessed radially inward. The upper convex portion 5f corresponds to the "engaged portion" in this specification and the like.

A holding concave portion 5g that engages with the holding convex portion 4h is provided on the inner peripheral surface of the lid outer peripheral wall 5b. A bendable hinge portion 5h integrally connected to the outer peripheral wall 4b of the cap body 4 is provided on the outer peripheral surface of the outer peripheral wall 5b of the lid body.

In order to pour out the contents from the pouring cap 1 having such a structure, the body of the outer layer body 12 is pressed while the lid body 5 is open. As a result, the internal space N is pressurized and the pressure in the accommodation space S is increased, so that the contents of the accommodation space S pass through the through hole 2c and flow into the inner cylindrical portion 2b, and furthermore, the connecting piece 3g is elastically secured. The outlet valve 3c is separated from the partition wall 2a while being deformed. That is, the pouring valve 3c closing the communication port 2d moves upward to open the communication port 2d. In this state, the contents pass through the gap between the pouring valve 3c and the partition wall 2a, reach the space surrounded by the base 3a, pass through the pouring port 4c, and are poured out along the pouring valve 3c. Since the air valve 3b contacts the stepped portion 4f to close the communicating passage T connecting the vent 12c and the outside air inlet 4g, the air in the internal space N does not leak to the outside.

After that, when the pressure on the outer layer body 12 is released and the trunk starts to restore, the volume of the internal space N increases, so the internal space N becomes decompressed. That is, since a pressure difference occurs between the outside world and the internal space N, the outside air is introduced into the cap main body 4 from the outside air inlet 4g while elastically deforming the air valve 3b so as to move away from the stepped portion 4f. Furthermore, it is introduced into the internal space N through the communicating path T. As a result, the outer layer body 12 can be restored while the inner layer body 11 is reduced and deformed. When the pressure on the outer layer body 12 is released, the pressure in the accommodation space S returns to its original state, and the communication port 2d is closed by the outlet valve 3c. can.

By the way, when a content such as dry oil is stored, the content adhering to the periphery of the pouring valve 3c is solidified by being exposed to air, and the pouring valve 3c is stuck to the partition wall 2a. may become On the other hand, in the pouring cap 1 of the present embodiment, when the lid 5 is closed as shown in FIG. 1, the upper protrusion 5f is inserted into the lower recess 3f. Here, the inner peripheral surface of the lower concave portion 3f is formed so as to bulge radially inward, and the outer peripheral surface of the upper convex portion 5f is formed so as to be concave radially inward. 5f is inserted into the lower recessed portion 3f and both are engaged. Therefore, when the lid body 5 is opened, the pouring valve 3c is lifted by the rod-shaped portion 5c that rises accordingly, so that even if the pouring valve 3c is fixed to the partition wall 2a, the pouring valve 3c is still closed. can be made mobile again.

The degree of engagement between the upper convex portion 5f and the lower concave portion 3f may be adjusted so that the pouring valve 3c is lifted up to some extent and then disengaged. You may adjust so that it may come off by contact. In addition, since the pouring valve 3c is provided with an annular wall 3d that is positioned radially inside the inner cylindrical portion 2b and extends relatively long, the pouring valve 3c can be easily lifted even when the cover 5 is opened and lifted. 3c is not largely displaced in the radial direction with respect to communication port 2d. That is, since the connecting piece 3g does not bend excessively in the vertical direction and the radial direction, it is possible to prevent accidental breakage of the connecting piece 3g. In addition, since the lower end of the annular wall 3d is provided with an inclined portion 3e, the lower end of the annular wall 3d touches the inner peripheral surface of the inner cylindrical portion 2b when the lifted pouring valve 3c returns to its original position. It is possible to prevent problems such as being stuck.

Further, in the pouring cap 1 of the present embodiment, when the lid body 5 is closed, the root portion 5d contacts the pouring port 4c, so that outside air is less likely to enter the inside of the pouring port 4c. That is, it is possible to effectively prevent solidification of the contents adhering to the periphery of the pouring valve 3c.

Next, a second embodiment of the lidded pouring cap according to the present invention will be described with reference to FIG. In addition, about the part which is common in 1st embodiment mentioned above, the same code|symbol is attached|subjected to drawing and detailed description is abbreviate|omitted.

In the pouring cap with lid shown in FIG. 2, the pouring valve 3c has a lower protrusion 3h instead of the lower recess 3f described above. The lower convex portion 3h extends upward from the central portion of the extraction valve 3c, and its outer peripheral surface is shaped so as to be concave radially inward. The lower convex portion 3h corresponds to the "engagement portion" in this specification and the like.

Also, as shown in FIG. 2, this pouring cap with lid has a cylindrical rod-shaped portion 5j in place of the above-described cylindrical rod-shaped portion 5c. The bar-shaped portion 5j includes a root portion 5k that is connected to the top wall 5a and contacts the spout 4c, and a tip portion 5m that is smaller in diameter than the root portion 5k. At the end of the distal end portion 5m, an upper concave portion 5n is provided which is inserted into the lower convex portion 3h and whose inner peripheral surface is concaved radially outward. The upper concave portion 5n corresponds to the "engaged portion" in this specification and the like.

Also in the pouring cap with lid shown in FIG. 2, when the lid body 5 is closed, the upper concave portion 5n is inserted into the lower convex portion 3h, and the two are engaged with each other. Therefore, when the lid body 5 is opened, the pouring valve 3c is lifted by the rod-like portion 5j that rises accordingly. Therefore, even if the content around the pouring valve 3c is solidified and the pouring valve 3c is fixed to the partition wall 2a, the pouring valve 3c can be moved again. can.

Although one embodiment of the present invention has been described above, the present invention is not limited to such a specific embodiment, and unless otherwise limited by the above description, the spirit of the present invention described in the claims Various modifications and changes are possible within the range of. Moreover, the effects of the above-described embodiments are merely examples of the effects produced by the present invention, and do not mean that the effects of the present invention are limited to the above effects.

For example, in the above-described embodiments, the engaging portion and the engaged portion are projections or recesses engaged therewith, but the present invention is not limited to these forms, and both may be claw-shaped, for example. In addition, the lid body 5 described above is integrally connected to the cap body 4 by the hinge portion 5h, but the cap body 4 and the lid body 5 are formed as separate members, one of which has a male screw portion and the other of which has a female screw portion. may be provided and they may be screwed together, or they may be engaged by an undercut. In the case of providing a male threaded portion and a female threaded portion, when rotating the lid 5 with respect to the cap main body 4, there is a risk that the rod-shaped portions 5c and 5j may apply a force in the circumferential direction to the pouring valve 3c. It is more preferable to use the hinge portion 5h and the undercut.

Moreover, the pouring cap with a lid according to the present invention is not limited to being attached to a double container, and can be attached to a container having no inner layer, such as the above-mentioned Patent Document 1.

1: pouring cap 2: inner plug 2a: partition wall 2b: inner cylindrical portion 2c: through hole 2d: communication port 2e: annular recess 2f: outer edge wall 2g: air communication port 2h: seal wall 3: valve member 3a: base 3b: air valve 3c: outlet valve 3d: annular wall 3e: inclined portion 3f: lower concave portion (engagement portion)
3g: connecting piece (elastic part)
3h: lower convex portion (engagement portion)
4: Cap body 4a: Top wall 4b: Peripheral wall 4c: Spout 4d: Spout tube 4e: Annular recess 4f: Step 4g: Outside air inlet 4h: Holding projection 4j: Female screw 5: Lid 5a: Top Wall 5b: Lid peripheral wall 5c: Rod-shaped portion 5d: Root portion (seal portion)
5e: tip portion 5f: upper convex portion (engaged portion)
5g: holding recessed portion 5h: hinge portion 5j: bar-shaped portion 5k: root portion 5m: tip portion 5n: upper recessed portion (engaged portion)
10: Container 11: Inner layer body 12: Outer layer body 12a: Mouth part 12b: Male screw part 12c: Air vent 12d: Notch N: Internal space O: Axis line S: Accommodating space T: Communication path

Claims (3)

A pouring cap attached to the mouth of a container for pouring out the contents stored in the housing space of the container from the pouring spout, and a lid covering the pouring spout and held by the pouring cap so as to be openable and closable. A spout cap with a lid comprising:
The pouring cap is supported by a partition wall that covers the mouth portion when attached to the mouth portion, a communication port that is provided in the partition wall and allows the accommodation space and the pouring port to communicate with each other, and is seated on the partition wall while being supported by an elastic portion. a pouring valve that closes the communication port by closing the communication port and opens the communication port by separating from the partition wall by elastically deforming the elastic portion when the content is poured from the pouring port,
The lid has a rod-shaped portion that is inserted into the spout when the lid is closed,
The pouring cap with a lid, wherein the pouring valve has an engaging portion, and the rod portion has an engaged portion that engages with the engaging portion when the lid is closed. 2. The pouring cap with a lid according to claim 1, wherein the rod-shaped part has a sealing part that contacts the pouring spout when the lid is closed. 3. The pouring cap with a lid according to claim 1, further comprising a bendable hinge portion that integrally connects the pouring cap and the lid body.

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