JP4615304B2 - Caps and containers and closure devices - Google Patents

Description

  The present invention relates to a cap for closing a container mouth, a container to which the cap is attached, and a closing device.

FIG. 8 shows an example of a conventional cap (see Patent Document 1).
The cap 41 shown here is a pre-screw cap, and includes a cap body 44 in which a cylindrical portion 43 hangs from the periphery of the top plate portion 42 and a liner 45 provided on the inner surface of the top plate portion 42.
The cylindrical portion 43 is divided into a main portion 48 by a horizontal score 46 and a TE ring portion 49 connected to the lower end of the main portion 48 by a bridge 47.
The tube portion 43 is formed with a screw portion 50 that is screwed into a male screw 62 formed in the mouth portion 61 of the container 60.
On the inner surface of the TE ring portion 49, a plate-like tab 51 that is engaged with the bulging step portion 63 of the container 60 is formed.

In addition, as a cap, there is a so-called easy open cap.
The cap includes, for example, a top plate portion, a skirt portion, and a tension piece connected to the skirt portion, and weakening lines are formed on the top plate portion and the skirt portion. The cap is opened by breaking the weakening line by pulling the tension piece (see, for example, Patent Document 2).
Japanese Patent Laid-Open No. 2001-114312 Utility Model Registration No. 2521095

The pre-screw cap is excellent in that it can be re-closed after being opened and can be reliably sealed.
However, with this cap, since it is necessary to rotate it greatly at the time of opening, there is a complaint that it takes time to open the cap. For this reason, a cap that can be easily opened has been desired.
In addition, with this cap, the cap removed from the container due to opening may be lost, or dirt may adhere to the cap so that it cannot be reclosed.
On the other hand, the easy open cap is excellent in that it can be easily opened, but there is a problem that if the cap is reclosed after being opened, it is easily detached from the container.
For this reason, when the reclosed container is carried in a bag or the like, there is a risk that force will be applied to the cap when it is carried and the cap will come off the container, leaving unsold beverages and the like.
The present invention has been made in view of the above circumstances, and a cap that can be opened easily and can be reliably sealed when it is reclosed, and that can prevent loss and contamination, and An object of the present invention is to provide a mounted container and a closing device using them.

  The cap of the present invention is a cap for closing a container mouth portion on which a male screw is formed, and has a cylindrical cap main body on which a main body screw portion that is screwed to the male screw is formed, and a hinge rotation on the cap main body. A closing body that is movably attached and that opens and closes an upper opening of the cap body, and the closing body is provided with a closing screw portion that engages with the male screw of the container. When the cap is in the closed position, it is engaged with the male screw, and when the cap body is in the temporary closed position, it is disengaged with the male screw.

The cap according to the present invention may be configured such that the closing body is provided with a locking portion that is locked to the container, and the locking portion is detachably locked to the container at the temporary closing position.
The cap of this invention can be set as the structure which a closing body closes a container opening part so that opening and closing is possible.
The cap of the present invention may be configured such that a cylindrical inner seal protrusion that is inserted into the container mouth and contacts the inner surface is formed on the closing body.
The cap of the present invention may be configured such that the closing body is formed with an annular opening end seal projection that contacts the opening end surface of the container mouth portion and an annular outer seal projection that contacts the outer surface of the container mouth portion. it can.
The cap of the present invention can be configured such that the inner seal protrusion can close the container mouth portion at any of the closing position and the temporary closing position.
The cap of the present invention is provided with a cap-side fitting portion that is a concave portion or a convex portion that fits into a container-side fitting portion that is a concave portion or a convex portion provided in the container at the temporary closing position. It can be configured.
The cap of this invention can be set as the structure with which the closing body was connected with the cap main body by the connection means which can be fractured | ruptured.

The closing device of the present invention is a closing device comprising a container and a cap attached to the mouth thereof, wherein the cap is as described above.
The beverage-containing closing device of the present invention is characterized in that a beverage is filled in the closing device.

In the cap of the present invention, since the closing screw portion is engaged with the male screw at the closing position, and the closing screw portion is not engaged with the male screw at the temporary closing position, the cap is slightly rotated from the closing position. Then, the closed body can be opened and closed by moving it to the temporary closing position. Therefore, it can be opened with an easy operation.
Further, in the cap of the present invention, since the closing screw portion can be engaged with the container by returning from the temporary closing position to the closing position, it is prevented that the closing body is accidentally removed and the container mouth is opened. be able to. Therefore, reliable sealing is possible even at the time of reclosing.
Furthermore, since the closing body is hingedly attached to the cap body, the internal solution can be taken out without being removed from the container mouth.
For this reason, unlike the conventional cap which can be removed, a cap is not lost, or the removed cap does not fall and adhere dirt.
As described above, this cap can be opened with an easy operation, can be reliably sealed when reclosed, and can be prevented from being lost or attached to dirt.

1 and 2 show a closing device using an example of the cap of the present invention. The closing device shown here includes a container 30 and a cap 1 attached to a mouth 31 thereof.
First, the cap 1 will be described.
The cap 1 includes a cylindrical cap body 2 and a closing body 3 that opens and closes an upper opening 2 a of the cap body 2.
The cap body 2 is divided into a main portion 8 by a horizontal score 6 (weakening line) and a tamper evidence ring portion 9 (hereinafter referred to as a TE ring portion 9) connected to the lower end of the main portion 8 by a bridge 7. Yes.
On the inner surface of the main portion 8, a main body screw portion 10 that is screwed into the lower male screw 32 of the container mouth portion 31 is formed.
On the inner surface of the TE ring portion 9, a protrusion 11 is formed as a locking means for locking to the bulging step portion 33 of the container 30.
On the inner surface of the upper portion of the cap body 2, a fitting convex portion 15 that is a cap-side fitting portion is formed. In the example of illustration, the fitting convex part 15 is formed in the hemispherical shape.
On the outer surface of the cap body 2, a knurl portion 22 that is a protrusion along the vertical direction is formed.

The closing body 3 includes a circular top plate portion 4, a cylindrical portion 5 that hangs down from the periphery thereof, and a protruding portion 16 that is formed on the outer surface of the cylindrical portion 5. The protruding portion 16 is formed to protrude outward from the lower portion of the cylindrical portion 5 substantially parallel to the top plate portion 4.
It is preferable to form a cylindrical inner seal projection 12 that is inserted into the container mouth portion 31 and abuts against the inner surface 31 a on the inner surface of the top plate portion 4.
On the inner surface of the top plate portion 4, an annular opening end seal projection 13 that contacts the opening end surface 31 b of the container mouth portion 31 and an annular outer seal projection 14 that contacts the outer surface 31 c of the container mouth portion 31 are formed. Is preferred.

As shown in FIG. 2, on the inner surface of the cylindrical portion 5, a closing screw portion 17 that is screwed into the upper male screw 34 of the container mouth portion 31 and a locking portion 18 that is locked to the container mouth portion 31 are formed. Yes.
The closing screw portion 17 is composed of a plurality of single screw portions 19 formed at intervals in the circumferential direction. In the illustrated example, the closing screw portion 17 includes three single screw portions 19 formed at regular intervals in the circumferential direction.
The closing screw portion 17 may be a single thread screw in which all the single screw portions 19 constitute one screw as a whole, or may be a multiple thread screw in which each single screw portion 19 constitutes a different screw. . In the illustrated example, the closing screw portion 17 is a multi-threaded screw, and each single screw portion 19 is formed at substantially the same height.

The locking portion 18 is detachably locked to the upper male screw 34 of the container mouth portion 31.
The closing body 3 is attached to a hinge portion 21 provided at the upper end of the cap body 2 and is capable of hinge rotation with the hinge portion 21 as a fulcrum.

As shown in FIG. 1, the closing body 3 is preferably connected to the upper end of the cap body 2 through a thin film 23 that is a connecting means.
The thin film 23 is formed integrally with the cap body 2 and the closing body 3 and is continuously formed in the circumferential direction. The thin film 23 is easily broken by applying an upward force to the closing body 3 so that the closing body 3 can be opened.
In addition, the closing body 3 can also be connected with the cap main body 2 via the connection means which is a bridge formed intermittently in the circumferential direction.
As a material of the cap 1, synthetic resins such as polyethylene and polypropylene can be used.

Next, the container 30 will be described.
The container mouth portion 31 includes a large diameter portion 35 and a small diameter portion 36 extending upward from the upper end thereof.
An upper male screw 34 is formed on the outer surface of the small diameter portion 36.
The upper male screw 34 is preferably composed of a plurality of single screw portions 37 formed at intervals in the circumferential direction. In the illustrated example, the upper male screw 34 includes three single screw portions 37 formed at regular intervals in the circumferential direction.
Hereinafter, a space between adjacent single screw portions 37 is referred to as a discontinuous portion 38.
The upper male screw 34 may be a single thread in which all the single threaded portions 37 constitute one screw as a whole, or may be a multiple threaded screw in which each single threaded portion 37 constitutes a different screw. . In the illustrated example, the upper male screw 34 is a multi-thread, and each single screw portion 37 is formed at substantially the same height.

The large-diameter portion 35 has an outer diameter larger than that of the small-diameter portion 36, and a lower male screw 32 is formed on the outer surface thereof.
The inner diameter of the large diameter portion 35 is substantially equal to the inner diameter of the small diameter portion 36.
A bulging step portion 33 is formed in the lower portion of the large diameter portion 35.
A fitting recess 39 that is a container-side fitting portion is formed on the upper portion of the large-diameter portion 35. The fitting recess 39 is formed so that the fitting projection 15 formed on the cap 1 can be fitted.
In the example of illustration, the fitting recessed part 39 is formed in the groove shape extended below from the upper end part of the large diameter part 35, and the cross-sectional shape is made into the trapezoid shape whose width | variety becomes narrow gradually in the depth direction.
As the container 30, a synthetic resin such as polyethylene terephthalate (PET) or glass can be used.

Next, an example of how to use the cap 1 will be described.
As shown in FIGS. 2 and 3, when the cap 1 is completely wound around the container mouth portion 31, the main body screw portion 10 of the cap main body 2 engages with the lower male screw 32 and the closing body 3 is closed. The screw portion 17 engages with the upper male screw 34 (engaged state).
The engagement of the closing screw portion 17 with the upper male screw 34 means that the closing body 3 cannot move upward because most of the single screw portion 19 is located below the single screw portion 37.
The position of the cap 1 is called a closing position.
In this closing position, the inner seal protrusion 12 seals the inner surface 31a. Similarly, the opening end seal projection 13 seals the opening end surface 31b, and the outer seal projection 14 seals the outer surface 31c.

As shown in FIGS. 4 and 5, when the cap 1 is rotated by a predetermined angle (about 60 ° in the illustrated example) in the opening direction from the closing position, the position of the closing screw portion 17 with respect to the upper male screw 34 changes, and the single screw Most of the portion 19 is located above the single screw portion 37 or at a discontinuous portion 38 (between adjacent single screw portions 37).
As a result, the closing screw portion 17 is removed from the upper male screw 34 (non-engaged state), and the closing body 3 can move upward.
The position of the cap 1 is called a temporary closing position.
Even in this temporary closing position, the inner seal protrusion 12 abuts on the inner surface 31a, and the sealing of the container mouth 31 by the inner seal protrusion 12 is maintained. In the temporary closing position, the main body screw portion 10 of the cap main body 2 is engaged with the lower male screw 32.

As shown in FIG. 4, the fitting convex portion 15 of the cap 1 is fitted into the fitting concave portion 39 of the container mouth portion 31 at the temporary closing position. The user can recognize that the cap 1 has reached the temporary closing position by the click feeling obtained when the fitting convex portion 15 is fitted into the fitting concave portion 39.
At the temporary closing position, at least a part of the locking portion 18 is located below the upper male screw 34 and is locked to the upper male screw 34.

As shown in FIGS. 6 and 7, when an upward force is applied to the protruding portion 16 at the temporary closing position, the thin film 23 between the closing body 3 and the cap body 2 is broken and the locking portion 18 is The upper male screw 34 is climbed upward, and the locking to the upper male screw 34 is released.
The closing body 3 rotates about the hinge portion 21 as a fulcrum, and the container mouth portion 31 is opened.
As a result, the user can take out the content liquid from the container mouth portion 31.

  As shown in FIG. 4 and FIG. 5, when the closing body 3 is rotated and put on the container mouth portion 31 again, the locking portion 18 gets over the upper male screw 34 downward and is locked to the upper male screw 34.

  As shown in FIGS. 2 and 3, when the cap 1 is rotated by a predetermined angle (about 60 ° in the illustrated example) in the closing direction, the cap 1 reaches the closing position, and the closing screw portion 17 is engaged with the upper male screw 34. To do.

When the cap 1 is further rotated in the opening direction from the closing position beyond the temporary closing position, the cap 1 is raised, the seal protrusions 12, 13, and 14 are separated from the container mouth portion 31, and the sealing of the container 30 is released. .
In the process of opening the cap, since the TE ring portion 9 is locked to the bulging step portion 33, the main portion 8 rises as it rotates, while the TE ring portion 9 is prevented from moving upward. A tensile force acts on the bridge 7 connecting the main portion 8 and the TE ring portion 9, the bridge 7 is broken, and the main portion 8 is separated from the TE ring portion 9.

In the cap 1, the closing screw portion 17 is engaged with the upper male screw 34 at the closing position, and the closing screw portion 17 is not engaged with the upper male screw 34 at the temporary closing position.
For this reason, the closing body 3 can be brought into a state capable of being opened and closed by slightly rotating the cap 1 from the closing position and moving it to the temporary closing position. Therefore, the cap 1 can be opened with an easy operation.
Further, in the cap 1, since the closing screw portion 17 can be engaged with the upper male screw 34 of the container mouth portion 31 by returning from the temporary closing position to the closing position, the closing body 3 is accidentally detached and the container mouth It can prevent reliably that the part 31 is open | released. Therefore, reliable sealing is possible even at the time of reclosing.
Furthermore, since the closing body 3 is attached to the cap body 2 so as to be able to rotate the hinge, the internal solution can be taken out without being removed from the container mouth portion 31.
For this reason, unlike the conventional cap which can be removed, a cap is not lost, or the removed cap does not fall and adhere dirt.
As described above, the cap 1 can be opened with an easy operation, can be surely sealed when reclosed, and can be prevented from being lost or attached to dirt.

The cap 1 can be used for example as follows.
The cap 1 attached to the container 30 filled with the beverage is rotated in the opening direction to move to the temporary closing position, the closing body 3 is opened, and a part of the beverage is taken out from the container 30.
Since the closure body 3 can be easily opened and closed at the temporary closing position, it does not burden the user even when opening and closing frequently.
When carrying the container 30 with a part of the beverage remaining in a bag or the like, the cap 1 is rotated in the closing direction to return to the closing position.
In this state, since the closing screw portion 17 of the cap 1 is engaged with the upper male screw 34, the closing body 3 may be opened even when a large force is applied to the closing body 3 during carrying. It can't happen.
Therefore, it is possible to prevent an accident in which a leftover beverage spills from the reclosed container in the bowl.
As described above, the cap 1 can realize reliable sealing despite being easy to open and close.
On the other hand, with a cap in which the closing body can be opened and closed regardless of the position of the cap body, it is difficult to achieve both the ease of opening and closing the closing body and the certainty of sealing.

  In the cap 1, the closure body 3 is provided with the locking portion 18 that is detachably locked to the upper male screw 34 of the container mouth portion 31, so that the container mouth portion closed by the closing body 3 in the temporary closing position is provided. 31 can be prevented from being accidentally opened.

  In the cap 1, since the closing body 3 closes the container mouth portion 31, the container mouth portion 31 can be reliably sealed.

  Since the closing body 3 includes the inner seal protrusion 12, the container opening 31 can be closed even at the temporary closing position.

  Since the cap main body 2 is provided with the fitting convex portion 15 that fits into the fitting concave portion 39 at the temporary closing position, the click feeling obtained when the fitting convex portion 15 is fitted into the fitting concave portion 39. Thus, the user can recognize that the cap 1 has reached the temporary closing position.

  Since the cap 1 is connected to the cap body 2 by the thin film 23 in which the closing body 3 can be broken, it is possible to easily identify whether the cap 1 is unopened or has been opened.

In the example shown in FIG. 1, the cap 1 is formed with a fitting convex portion 15 that fits into the fitting concave portion 39 of the container 30, but conversely, the cap is provided with a fitting concave portion, A fitting convex portion that fits into the fitting concave portion may be provided.
Moreover, in the cap 1, although the latching | locking part 18 latches to the upper external thread 34, the structure which a latching | locking part latches to the other part of a container is also possible. Moreover, you may provide the latching convex part or latching recessed part which the latching | locking part of a cap latches in a container. In addition, the cap of the present invention can be configured without a locking portion.
In the container 30 shown in FIG. 1, the upper male screw 34 includes a plurality of single screw portions 37, but the upper male screw may have a shape including a single screw.

  The closing device is a beverage-containing closing device filled with beverages by filling the container 30 with beverages such as fruit juice beverages, tea beverages, coffee beverages, carbonated beverages, and attaching the cap 1 to the mouth 31. Can do.

It is a partial cross section perspective view which shows an example of the cap and container of this invention. It is a perspective view which shows a cap and a container when it exists in a capping position. It is sectional drawing which shows the cap and container of the state shown in FIG. It is a perspective view which shows a cap and a container when it exists in a temporary closure position. It is sectional drawing which shows the cap and container of the state shown in FIG. It is a perspective view which shows the cap and container of the state which rotated the closing body and opened the container opening part. It is sectional drawing which shows the cap and container of the state shown in FIG. It is a figure which shows operation | movement of the conventional cap.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Cap, 2 ... Cap main body, 2a ... Upper opening, 3 ... Closure body, 10 ... Main body screw part, 12 ... Inner seal protrusion, 13 ... Open end seal protrusion, 14 ... Outer seal projection, 15 ... fitting convex part (cap side fitting part), 17 ... closing screw part, 18 ... locking part, 21 ... hinge part, 23 ... thin film, 30 ... container, 31 ... mouth part, 31a ... inner surface, 31b ... open end surface, 31c ... outer surface, 32 ... lower male screw, 34 ... upper male screw, 35 ... large diameter portion, 36 ... small diameter portion, 37 ... single screw portion, 39 ... fitting recess (container Side fitting part)

Claims (10)

A cap for closing the container mouth portion formed with the male screw,
A cylindrical cap main body formed with a main body screw portion to be screwed into the male screw, and a closing body that is attached to the cap main body so as to be capable of hinge rotation and opens and closes an upper opening of the cap main body,
The closing body is provided with a closing screw portion that engages with the male screw of the container,
The closing screw portion is engaged with the male screw when the cap body is in the closing position, and is not engaged with the male screw when the cap body is in the temporary closing position. And cap. The closing body is provided with a locking portion for locking to the container,
The cap according to claim 1, wherein the locking portion is detachably locked to the container at the temporary closing position.   The cap according to claim 1 or 2, wherein the closing body is configured to close the container mouth so as to be freely opened and closed.   The cap according to claim 3, wherein the closing body is formed with a cylindrical inner seal projection that is inserted into the container mouth and abuts against the inner surface thereof.   The closed body is formed with an annular opening end seal projection that contacts the opening end surface of the container mouth portion and an annular outer seal projection that contacts the outer surface of the container mouth portion. The described cap.   The cap according to claim 4 or 5, wherein the inner seal protrusion is capable of closing the container mouth portion at any of the closing position and the temporary closing position.   The cap main body is provided with a cap-side fitting portion that is a concave portion or a convex portion that fits into a container-side fitting portion that is a concave portion or a convex portion provided in the container at the temporary closing position. The cap according to any one of claims 1 to 6.   The cap according to any one of claims 1 to 7, wherein the closing body is connected to the cap body by a breakable connecting means. A closure device comprising a container and a cap attached to the mouth thereof,
The closure device according to claim 1, wherein the cap is any one of claims 1 to 8. A beverage-containing closure device, wherein the closure device according to claim 9 is filled with a beverage.

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