JP2022055860A - Spout port structure - Google Patents

Abstract

To provide a spout port structure in which an inside plug is opened to be unplugged, which is improved in convenience.SOLUTION: A spout port structure comprises: a mouth part having an outer screw formed therein; an inside plug which includes an annular fitting part that fits to an opening end of the mouth part, a bulkhead inside the fitting part and a protruding part extending from the bulkhead and having a communication part constituted of notches or holes; and a cap which includes a side wall having an inner screw formed therein, a top plate having a spout port and an engagement part, provided at an outer periphery of the spout port of the top plate, which can engage with the protruding part, which is covered on the mouth part and the inside plug and is screwed to the mouth part. When the cap is rotated in a closing direction, the bulkhead and the protruding part separate from the fitting part with the engagement part engaging with the protruding part, which enables contents to pass through the communication part and the spout port, so that the inside plug is unplugged.SELECTED DRAWING: Figure 1

Description

The present invention relates to a pouring port structure of a packaging container.

A packaging container provided with a sealing inner stopper and a cap for the packaging container has been proposed in which the time and effort for opening the packaging container is reduced. Patent Document 1 discloses a packaging container in which the cap cuts off a planned opening portion of the inner plug as the cap rotates in the closing direction.

International Publication No. 2007/126062

In the packaging container of Patent Document 1, for example, by removing the cap, the separation portion provided in the inner plug is separated to expose the opening and used as the spout. Therefore, the spout is designed according to the ease of forming the opening. There was a limit to the convenience, such as a low degree of freedom.

The present invention has been made in view of such a problem, and an object of the present invention is to further improve convenience in a spout structure in which a part of an inner plug is opened and opened.

One aspect of the present invention for solving the above problems is a mouth portion in which an external screw is formed, an annular fitting portion that fits with the opening end of the mouth portion, a partition wall inside the fitting portion, and a partition wall. An inner plug including a protrusion having a notch or a communication portion extending from a hole, a side wall formed with an internal thread, a top plate having a spout, and a protrusion provided on the outer periphery of the spout of the top plate. It includes an engaging portion that can be engaged with the portion, and has a cap that is put on the mouth portion and the inner plug and screwed to the mouth portion. In this state, the partition wall and the protruding portion are separated from the fitting portion, and the spouting port structure is opened by allowing the contents to pass through the communicating portion and the spouting port.

According to the present invention, the contents that have passed through the opening formed in the inner plug can be further passed through a notch or a hole provided in the cap as a spout, and can be dispensed at a pouring speed or pouring. Various conveniences can be improved, such as easy design of orientation.

Longitudinal sectional view of the spout structure according to the embodiment of the present invention. Perspective view of mouth and inner plug according to one embodiment of the present invention Longitudinal sectional view of the spout structure according to a modified example of the embodiment of the present invention. The figure which shows typically the mouth part and the cap which concerns on one Embodiment of this invention. Longitudinal sectional view of a cap according to a modified example of the embodiment of the present invention. Partial cross-sectional view of the mouth portion and the fitting portion according to the embodiment of the present invention.

(Embodiment)
FIG. 1 shows a vertical cross-sectional view of the spout structure of the packaging container according to the embodiment of the present invention. FIG. 1A shows an unopened spout structure, and FIG. 1B shows an unopened spout structure. The packaging container is not limited, and examples thereof include resins such as polypropylene, polyethylene, and polyethylene terephthalate, molded bodies of these laminates, and laminated tubes.

The spout structure includes a mouth portion 11 which is a part of the container body 10 and has an open end, an inner plug 20, and a cap 30. An external screw 12 is formed on the mouth portion 11. As an example, the inner plug 20 includes an annular fitting portion 21 that fits with the open end of the mouth portion 11, a partition wall 22 inside the fitting portion 21, and a protrusion 23 extending from the partition wall 22. The cap 30 includes a side wall 31 on which the internal screw 37 is formed, a top plate 32 having a spout 36, and an engaging portion 35 provided on the outer periphery of the spout 36 of the top plate 32 and capable of engaging with the protrusion 23. include. The cap 30 is put on the mouth portion 11 and the inner plug 20 and screwed with the mouth portion 11. In the example of FIG. 1, the cap 30 further includes a hinge 33 and a lid 34 connected to the hinge 33 and capable of opening and closing the spout 36. The inner plug 20 can be suitably manufactured using polyethylene (low density polyethylene, linear low density polyethylene), and the cap 30 can be suitably manufactured using polypropylene or polyethylene (high density polyethylene, linear low density polyethylene).

As shown in FIG. 1A, in the unopened state, the partition wall 22 of the inner plug 20 is connected to the fitting portion 21, and the inner plug 20 closes the mouth portion 11. By the rotation operation of the cap 30 in the closing direction, the partition wall 22 and the protruding portion 23 are separated from the fitting portion 21 and opened in a state where the engaging portion 35 is engaged with the protruding portion 23 as shown in FIG. 1 (b). Be plugged.

FIG. 2A schematically shows a perspective view of a state in which the inner plug 20 is fitted to the open end of the mouth portion 11. The protruding portion 23 has a communicating portion 24. In this example, the communication portion 24 is a hole. FIG. 2B shows another example of the protrusion 23. In this example, the communication section 24 is a notch. In the state shown in FIG. 1 (b), the contents can pass through the communication portion 24 such as a hole or a notch and the spout 36.

In this way, since the spout 36 is provided separately from the communication portion 24 of the inner plug 20, the shape of the spout 36 can be designed independently of the inner plug 20, depending on the viscosity of the contents, the application, and the like. It is possible to easily adjust the pouring speed. The pouring speed can also be adjusted by adjusting the size of the communication unit 24. In the example shown in FIG. 1, the pouring speed can be suppressed by making the diameter of the spout 36 smaller than the diameter of the partition wall 22. FIG. 3 shows a vertical cross-sectional view according to another example of the spout structure. In this example, the cap 30 is provided with a spout to which a spout member 40 having a cross-shaped slit is attached at a position deviated from the central axis of the mouth portion 11 so that the pouring direction is slanted. Can be done. As described above, the cap 30 is not limited in its mode as long as the spout can be provided, and the cap 30 can be designed in various ways.

Further, the partition wall 22 suppresses the momentum of the contents toward the spout 36 and suppresses the contents from scattering. The partition wall 22 preferably has a shape in which the central portion protrudes inward of the container body 10. As a result, it is easy to suppress the deformation of the partition wall 22 even if the internal pressure of the content increases, the content can be suitably guided to the communication portion 24 along the partition wall 22, and the residue of the content can be suppressed. ..

It is also possible to rotate the cap 30 in the opening direction and remove it from the mouth portion 11 to pour out the contents. In this case, the protruding portion 23 and the partition wall 22 are removed together with the cap 30 because the protruding portion 23 is engaged with the engaging portion 35. As a result, an opening larger than that of the spout 36 can be obtained, and a large amount of contents can be poured in a short time.

As the engaging structure of the protruding portion 23 and the engaging portion 35, for example, as shown in FIG. 1, a structure in which the convex portions overcome each other and engage with each other can be adopted, but the structure is not limited to this. However, as in the example of FIG. 2B, when the communication portion 24 is a notch and the top of the protrusion 23 is not continuous, the top is easy to move, so that the inner circumference and the outer circumference of the top of the protrusion 23 are easy to move. It is preferable to adopt a stronger engaging structure that sandwiches the protrusion 23 from both of them.

(A) and (b) of FIG. 4 show the mouth portion 11, the side wall 31 of the cap 30, and a part of the internal screw 37 transparently and schematically. The side wall 31 is provided with a recess in the vicinity of the tip of the internal screw 37 in the middle of the thread, in which the height of the thread is lower than that of other portions. The recess is formed, for example, by not providing a thread. A first rib 13 and a second rib 14 are formed in the mouth portion 11 between the threads of the external screw 12.

In the state shown in FIG. 4A, the concave portion engages with the first rib 13 to restrict the rotation of the cap 30 to a certain extent. That is, a certain amount of rotational torque or more is required to disengage this engagement. This state corresponds to the state of (a) in FIG. In this state, the spout structure is in an unused state in which the cap is not opened, and for example, transportation, sales, and the like can be performed in this state.

Further, in the state shown in FIG. 4B, the concave portion engages with the second rib 14 to restrict the rotation of the cap 30 to a certain extent. That is, a certain amount of rotational torque or more is required to disengage this engagement. This state corresponds to the state of (b) in FIG. In this state, the spout structure is in a used state with the cap opened. For example, in this state, the user can continue to use it. In this way, by restricting the rotation to a certain extent in the unused state and the used state, it is possible to suppress the unintended rotation of the cap 30. Further, by restricting the rotation to a certain extent in the use state, it is possible to detect the completion of the rotation operation when the user performs the rotation operation in the closing direction for opening the cap, and the cap in the use state. Looseness can be suppressed.

It is preferable that the first rib 13 and the second rib 14 are provided at positions where they overlap each other when viewed from the central axis direction of the mouth portion 11. As a result, the orientation of the cap 30 with respect to the container body 10 along the rotation direction is the same at the time of display at the store and at the time of use. Therefore, when the cap 30 has a hinge 33, a spout 36 at an oblique position, and the like, and the shape and function have a direction for ease of use, the cap 30 is in a used state even if it is in an unused state at the time of display at the store. The orientation of the cap 30 can be presented to the user to appeal the ease of use.

FIG. 4 (c) schematically shows a side view of the cap 30 as seen from the direction of the arrow in FIG. 4 (a). In the example shown in FIG. 4 (c), the side wall 31 of the cap 30 slides in one or two places separated by about 90 ° in the rotation direction of the cap 30 from the position where the recess of the internal screw 37 is formed. The stopper is processed. As a result, when the user rotates the cap 30, the concave portion of the internal screw 37 and the engagement portion between the first rib 13 or the second rib 14 are not pressed by inducing the user to pinch the non-slip processing position. It is possible to prevent the force for disengagement from becoming unnecessarily large. The mode of anti-slip processing is not limited, and the lid 34 may also be anti-slip processed.

Further, as shown in FIG. 5, a band 38 may be separably provided on the side wall 31 of the cap 30 at the opposite end of the top plate 32. In this case, in the unopened state, the band 38 abuts on the pedestal 15 of the mouth portion 11 shown in FIG. 1, and the rotation operation of the cap 30 in the closing direction is restricted as an unused state in which the cap 30 is not opened. .. For example, in this state, transportation, sales, and the like can be performed. When the band 38 is separated from the side wall 31, the cap 30 can be rotated in the closing direction. When the cap 30 is opened by the rotation operation and the end portion of the cap 30 comes into contact with the pedestal 15, the rotation operation in the closing direction is completed, and the user can detect that the partition wall 22 of the inner plug 20 is broken. For example, the user can continue to use this state as the usage state.

In this way, by suppressing the movement of the cap 30 to a certain extent between the unopened state and the opened state, it is possible to suppress unintentional breakage of the inner plug 20 and loosening of the cap 30. Further, when the band 38 is provided, it can be indicated that the band 38 has not been opened because the band 38 is not separated.

Due to the rotation operation of the cap 30 in the closing direction, the rotational torque of the cap 30 and the pressing force due to the cap 30 approaching the mouth portion 11 side are applied from the top plate 32 via the protruding portion 23 to the fitting portion 21 and the partition wall. It is transmitted to and from 22 and acts as a breaking force. By adjusting the effects of rotational torque and pressing by designing the shape and size of the protrusion 23 and the like, the rotational torque and angle of rotation required for fracture can be adjusted. For example, if the protrusion 23 is greatly allowed to be deformed in the rotation direction, the peak rotation torque can be suppressed at the cost of a large rotation angle required for breaking, and even a user with a weak force can easily perform a rotation operation. A thin portion, a half cut, or the like may be appropriately provided between the fitting portion 21 and the partition wall 22 to weaken the strength.

In the unused state, the engaging portion 35 and the protruding portion 23 may not be engaged with each other. In this case, engagement occurs as the rotation operation progresses. At this time, since the user can get a feeling of engagement, he / she can appropriately feel the start and progress of opening the cap along with the fluctuation of the force required for the subsequent rotation operation, and the cap can be opened. You can eliminate the anxiety that you may not have it.

In order to make the rotational torque act as a breaking force, a non-slip mechanism is provided between the inner plug 20 and the mouth portion 11, or between the inner plug 20 and the top plate 32, or both. It may be provided to more reliably suppress the rotation of the fitting portion 21. FIG. 6 shows an example of a cross section at the portion shown by the dotted line in FIG. 1 (a). In the example shown in FIG. 6, unevenness is provided on the inner circumference of the fitting portion 21 and the outer circumference of the mouth portion 11 to suppress slippage between the inner plug 20 and the mouth portion 11. Further, when suppressing slippage between the inner plug 20 and the top plate 32, for example, the contact surface between the engaging portion 35 and the protruding portion 23 may be provided with irregularities in the same manner. Further, the fitting portion 21 and the mouth portion 11 may be welded together.

As described above, in the spout structure according to the present invention, the contents that have passed through the opening formed in the inner plug 20 can be further passed through the spout 36 provided in the cap 30 to be dispensed. It is possible to improve various conveniences such as easy design of pouring speed and pouring direction. It should be noted that each feature in the above-described embodiment can be omitted, changed, or combined as appropriate. For example, when the above-mentioned band 38 is provided on the cap 30, each of the cap 30 and the mouth portion 11 is provided with a ridge or the like that overcomes and engages with each other instead of a screw thread, and the band 38 is removed to attach the cap 30. It may be possible to open and engage by pushing in without rotating.

The present invention is useful for the spout structure of a packaging container.

10 Container body 11 Mouth 12 External screw 13 1st rib 14 2nd rib 15 Pedestal 20 Inner plug 21 Fitting part 22 Barrier 23 Protruding part 24 Communication part 30 Cap 31 Side wall 32 Top plate 33 Hinge 34 Lid 35 Engagement part 36 Injection port 37 Internal screw 38 Band 40 Injection member

Claims (6)

The mouth where the external screw is formed and
An inner plug comprising an annular fitting that fits to the open end of the mouth, a partition inside the fitting, and a protrusion extending from the partition and having a communication portion consisting of a notch or a hole. ,
A side wall on which an internal screw is formed, a top plate having a spout, and an engaging portion provided on the outer periphery of the spout of the top plate and engaging with the protrusion, the mouth and the inner plug. With a cap that is put on and screwed into the mouth
By the rotation operation of the cap in the closing direction, the partition wall and the protruding portion are separated from the fitting portion in a state where the engaging portion is engaged with the protruding portion, and the communicating portion and the pouring hole port are provided as contents. A spout structure that opens when the air can pass through. The spout structure according to claim 1, wherein the cap further includes a lid that can open and close the spout. The side wall is provided with a recess in the middle of the thread of the internal screw whose thread height is lower than that of other portions.
The mouth has a first rib between the threads of the external screw that engages with the recess in an unopened state and restricts the rotation of the cap to a certain extent as an unused state, and the cap is closed. A second rib that engages with the concave portion in a state of being opened by a rotational operation and restricts the rotation of the cap to a certain extent is provided as a used state.
The spout structure according to claim 1 or 2, wherein the first rib and the second rib are provided at positions where they overlap each other when viewed from the central axis direction of the mouth portion. A pedestal is provided at the mouth portion, and the pedestal is provided.
Bands are separably provided on the side wall.
In the unopened state, the band comes into contact with the pedestal, and the rotation operation of the cap in the closing direction is restricted as an unused state.
Claimed that the separation of the band enables the rotation operation of the cap in the closing direction, and the side wall surface abuts on the pedestal, so that the rotation operation in the closing direction is completed and the partition wall is broken to be in a usable state. The spout structure according to any one of 1 to 3. The spout structure according to claim 3 or 4, wherein the engaging portion and the protruding portion are not engaged in the unused state. The spout structure according to any one of claims 1 to 5, wherein the partition wall has a shape in which a central portion protrudes inward of the tubular portion.

Images