JP5090021B2 - Cap and closure device and beverage closure device - Google Patents

Description

  The present invention relates to a cap for closing a mouth portion of a container, a closing device using the cap, and a beverage containing closing device, and in particular, a cap body and a closing body rotatably attached to the cap body via a hinge portion. And a cap with a beverage, and a beverage containing closure device.

Conventionally, a cap including a cap body and a closing body that is rotatably attached to the cap body via a hinge portion has been used (see Patent Document 1). This type of cap can easily open and close the mouth of the container by rotating the closing body.
In the cap, the user can open the closing body by applying force to the closing body with fingers or the like and rotating the closing body in the opening direction. In the unopened state, since the closing body is connected to the cap body via the coupling body, the user applies a force to the closing body with fingers or the like to cut the coupling body to open the closing body.

JP 2000-191015 A

Considering the operability when opening and closing the closing body, it is not desirable that a large force is required for the opening operation. In particular, since it is necessary to cut the coupling body in order to open the closing body in the unopened cap, a larger force may be required, and improvement in operability is desired.
However, if the closure body is easily separated from the cap body in consideration of operability during opening and closing, the sealing performance may become a problem.
The present invention has been made in view of the above circumstances, and in a cap including a closing body rotatably attached to a cap body via a hinge portion, an operation for opening and closing the closing body is easy and sufficient. It is an object of the present invention to provide a cap capable of ensuring sealing performance, a closing device using the cap, and a beverage containing closing device.

The present invention is a cap for closing a container mouth portion formed with a push-up portion, and is a cylindrical cap body rotatable in the circumferential direction of the mouth portion, and is pivoted to the cap body via a hinge portion. A closing body that is detachably attached to open and close the upper opening of the cap body, and the closing body has an engaging projection that can be engaged with a push-up part of the mouth part, and the cap body A locking portion that locks against the container and prevents the cap body from rising; and the engagement of the engagement protrusion with the push-up portion is released by the rotation in the circumferential direction; When the joint protrusion is pushed up by the push-up part, it is formed to rotate in the opening direction with the hinge part as a fulcrum, and the push-up part is a male screw formed on the outer surface of the mouth part, Engaging protrusions are screwed onto the male thread Providing a cap which is threaded portion for.
It is preferable that the push-up portion is a multi-thread screw composed of a plurality of single screw portions formed at a predetermined interval in the circumferential direction.
Preferably, the locking portion is formed so as to be locked to the container at the same time as or after the engagement of the engaging protrusion with the lifting portion is released in the process of lifting the closing body. .
It is preferable that the closing body is connected to the cap body via a connecting means that can be cut by the push-up.

The closing device of the present invention is a closing device comprising a container and a cap attached to the mouth portion thereof, wherein the cap has the above-described configuration.
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, the closing member can be rotated in the opening direction only by rotating in the circumferential direction (opening direction), so that the force required for the opening operation can be reduced.
Further, when the cap is rotated in the closing direction so as to be in the closed state, the engagement protrusion is engaged with the push-up portion, so that the closing body does not come off from the mouth portion and a reliable sealing is possible.
Therefore, the operation of opening the closing body can be facilitated without impairing the sealing performance.

1 and 2 show a closing device using an example of a cap of the present invention. FIG. 1 is a perspective view of the closing device, and FIG. 2 is a cross-sectional view showing the closing device.
As shown in FIG. 1, the closing device includes a container 30 and a cap 1 attached to the mouth portion 31.
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.
On the inner surface of the cap main body 2, an engaging portion 11 that engages with the bulging step portion 33 of the container 30 is formed. In the example of illustration, the latching | locking part 11 is the protrusion part formed along the circumferential direction, and is intermittently formed in the circumferential direction.

As shown in FIG. 1, the closing body 3 closes the mouth portion 31 so as to be openable and closable, and has a circular top plate portion 4, a cylindrical portion 5 depending from the periphery thereof, and an outer surface of the cylindrical portion 5. The formed operation part 16 is provided.
It is preferable to form a cylindrical inner seal protrusion 12 that is inserted into the mouth portion 31 and abuts against the inner surface 31 a on the inner surface of the top plate portion 4. In addition, on the inner surface of the top plate portion 4, an annular opening end seal protrusion 13 that contacts the opening end surface 31 b of the mouth portion 31 and an annular outer seal protrusion 14 that contacts the outer surface 31 c of the mouth portion 31 are formed. Is preferred.

On the inner surface of the cylindrical portion 5, a closing screw portion 17 that is screwed into a male screw 34 formed in the mouth portion 31 is formed.
The closing screw portion 17 is an engaging protrusion that can be engaged with the male screw 34. In the illustrated example, the closing screw portion 17 includes a plurality of single screw portions 17a formed at intervals in the circumferential direction. The closing screw portion 17 may be a single thread or a multiple thread.

The closing body 3 is attached to the cap body 2 via a hinge portion 21 and is rotatable about the hinge portion 21 as a fulcrum.
The hinge portion 21 includes a connection portion 23 that connects the cap body 2 and the closing body 3. The connecting portion 23 is formed in a thin plate shape having flexibility, and functions as a fulcrum for the opening / closing operation of the closing body 3.

The closing body 3 is preferably connected to the upper end of the cap body 2 via a bridge 7 which is a severable connecting means. A plurality of bridges 7 are formed at positions other than the connecting portion 23 at intervals in the circumferential direction, and can be easily broken by applying an upward force to the closing body 3 so that the closing body 3 can be opened. Formed.
The means for connecting the closing body 3 and the cap body 2 may be any means as long as it can be easily broken by applying an upward force to the closing body 3, and the bridge 7 formed intermittently in the circumferential direction can be used. Not limited to this, it may be a thin film-like connected body formed continuously in the circumferential direction.

As shown in FIG. 1, a knurled portion 22 that is a protrusion along the vertical direction can be formed on the outer surfaces of the cap body 2 and the closing body 3.
As a material of the cap 1, a synthetic resin such as polyethylene or polypropylene can be used.
As a molding method of the cap 1, compression molding, injection molding, or the like can be adopted.

Next, the container 30 will be described.
As shown in FIG. 1, the mouth portion 31 includes a cylindrical large-diameter portion 35 and a cylindrical thin-diameter portion 36 extending upward from the upper end thereof.
A male screw 34 (push-up portion) is formed on the outer surface of the small diameter portion 36.
The male screw 34 is formed so as to be able to engage with the closing screw portion 17 and push up the closing body 3.
In the illustrated example, the male screw 34 includes three single screw portions 34a formed at a predetermined interval in the circumferential direction. The male screw 34 is preferably a multi-threaded screw in which each single screw portion 34a constitutes a different screw. The single screw portion 34a is formed at substantially the same height. A space between adjacent single screw portions 34a is referred to as a discontinuous portion 38.
The male screw 34 is not limited to a multi-threaded screw, but may be a single-threaded screw. However, when a multi-threaded screw is employed, the formation angle of the single threaded portion 34a with respect to a horizontal plane (surface along the opening end surface 31b) is increased. Therefore, the closing body 3 can be greatly raised with a slight rotation.

The large-diameter portion 35 has an outer diameter larger than that of the small-diameter portion 36, and the inner diameter 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. The bulging step portion 33 is formed to project in an annular shape.
Examples of the material of the container 30 include synthetic resins such as polyethylene terephthalate (PET) and glass.

Next, an example of how to use the cap 1 will be described with reference to FIGS.
In the state shown in FIG. 2, the inner seal protrusion 12 is inserted into the mouth portion 31 and comes into contact with the inner surface thereof, whereby the mouth portion 31 is closed (hereinafter referred to as a closed state). In the example of illustration, the latching | locking part 11 exists in the position away from the bulging step part 33 below.

As shown in FIG. 3, when the cap 1 is rotated in the circumferential direction (opening direction; indicated by an arrow in FIG. 1) of the mouth portion 31, the closing screw portion 17 is pushed up by the male screw 34, and is moved upward to the closing body 3. By applying a force to the cap 1, the cap 1 is raised. In the position shown in this figure, the locking portion 11 reaches the bulging step portion 33.
Due to the rotation in the opening direction, the engagement of the closing screw portion 17 with the male screw 34 is released. That is, the single screw portion 17a is positioned above the single screw portion 34a or at the discontinuous portion 38. Accordingly, the closing body 3 is in a state (non-engagement state) where it is removed from the male screw 34.
In the position shown in FIG. 3, the closing body 3 is detached from the male screw 34, but is not separated from the cap body 2 because it is connected to the cap body 2 by the bridge 7. Further, at this position, the inner seal projection 12 is inserted into the mouth portion 31 and the sealing is maintained.

In the process in which the cap 1 is rotated and the closing body 3 is pushed up, the locking portion 11 is locked to the bulging step portion 33 at the same time as the engagement of the closing screw portion 17 with the male screw 34 is released. Or after that.
As a result, the closing body 3 can be rotated in the opening direction in a state where the closing body 3 is sufficiently raised, so that an unreasonable force is not applied to the closing body 3 and the opening / closing operation of the closing body 3 becomes smooth.
In the process in which the closing body 3 is pushed up by rotating the cap 1, the inner seal protrusion 12 is inserted into the mouth portion 31 and the sealing is maintained until the bridge 7 is broken and the closing body 3 can be rotated. It is desirable that

  As shown in FIG. 4, when the cap 1 is rotated in the opening direction, the closing screw portion 17 is pushed up by the male screw 34, and an upward force is applied to the closing body 3. On the other hand, the cap body 2 is prevented from rising because the locking portion 11 is locked to the bulging step portion 33. For this reason, a tensile force acts on the bridge 7 connecting the closing body 3 and the cap body 2, the bridge 7 is broken, the closing body 3 is separated from the cap body 2, and can be rotated in the opening direction.

When the cap 1 is further rotated in the opening direction, the closing screw portion 17 is pushed up by the male screw 34 and an upward force is applied to the closing body 3, and the closing body 3 opens in the opening direction with the hinge portion 21 as a fulcrum ( 4, and at least a part of the inner seal protrusion 12 is pulled out from the mouth portion 31 to release the seal. By rotating the closing body 3 in the opening direction, the user can easily confirm that the opening has been opened.
If the closing body 3 is further rotated, the content liquid can be easily taken out from the container 30.

  In order to close the mouth portion 31, the closing body 3 is closed with the hinge portion 21 as a fulcrum, and the inner seal protrusion 12 is inserted into the mouth portion 31.

When sealing is required, the cap 1 is rotated in the closing direction (the direction opposite to the opening direction) with the closing body 3 closed. As a result, the closing screw portion 17 is engaged with the male screw 34 to obtain the closing state shown in FIG. In this state, since the closing screw portion 17 engages with the male screw 34, the closing body 3 is not accidentally opened.
In the illustrated example, the male screw 34 is a multi-threaded screw composed of three single screw portions 34a. Therefore, in order to engage the closing screw portion 17 with the male screw 34, the single screw portion 17a is replaced with three single screw portions 34a. What is necessary is just to arrange | position in the position engaged with either. For this reason, it is easy to engage the closing screw portion 17 and the male screw 34.

In the conventional cap, it is difficult to set the strength of a connecting body (for example, a bridge) that connects the closing body and the cap body. When the strength of the connecting body is increased, it is not easy to open the closing body, and when the strength of the connecting body is decreased, the closing body is easily opened by mistake and the sealing performance is lowered.
On the other hand, in the cap 1, the closing member 3 can be rotated in the opening direction only by rotating in the circumferential direction (opening direction), so that the force required for the opening operation can be reduced.
Further, when the cap 1 is rotated in the closing direction so as to be in the closed state, the closing screw portion 17 is engaged with the male screw 34, so that the closing body 3 is not detached from the mouth portion 31, and a reliable sealing is possible. is there.
Therefore, the operation of opening the closing body 3 can be facilitated without impairing the sealing performance.

  In the above-described example, the container 30 in which the male thread 34 is formed in the mouth portion 31 is shown. However, the push-up portion formed in the mouth portion only needs to engage with the engaging protrusion and push up the same. The shape may be other than a screw. For example, a cam that pushes up the engaging protrusion by rotating the closing body in the direction of opening the plug may be used. The cam can be, for example, a protrusion formed so as to be inclined so that at least a part thereof rises in the opening direction.

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 portion 31. Can do.
Moreover, the closing device of the present invention is applicable not only to beverages but also to liquids in general. For example, it can be applied to seasonings (such as soy sauce), cooking oil (such as salad oil), and cosmetics (such as lotion).

It is a perspective view which shows the closing apparatus which uses an example of the cap concerning this invention. It is sectional drawing of the closing apparatus shown in FIG. It is sectional drawing of the closing apparatus shown in FIG. It is sectional drawing of the closing apparatus shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Cap, 2 ... Cap main body, 2a ... Upper opening, 3 ... Closing body, 7 ... Bridge (connection means), 11 ... Locking part, 17 ... Closing screw part (engagement protrusion), 21 ... Hinge part, 30 ... container, 31 ... mouth part, 33 ... bulging step part, 34 ... male screw (push-up part).

Claims (6)

A cap for closing the container mouth portion where the push-up portion is formed,
A cylindrical cap body that is rotatable in the circumferential direction of the mouth portion, and a closing body that is rotatably attached to the cap body via a hinge portion and opens and closes the upper opening of the cap body,
The closing body has an engagement protrusion that can be engaged with the push-up portion of the mouth portion,
The cap body has a locking portion that locks to the container and prevents the cap body from rising.
The closing body is disengaged with respect to the push-up portion by the rotation in the circumferential direction, and the engagement protrusion is pushed up by the push-up portion, so that the hinge portion serves as a fulcrum to open the closing body Is formed to rotate,
The push-up part is a male screw formed on the outer surface of the mouth part,
The cap characterized in that the engaging protrusion is a screw portion that is screwed into the male screw .   The cap according to claim 1, wherein the push-up portion is a multi-thread screw including a plurality of single screw portions formed at a predetermined interval in the circumferential direction.   The locking portion is formed so as to be locked to the container at the same time as or after the engagement of the engaging protrusion with the lifting portion is released in the process of lifting the closing body. The cap according to claim 1 or 2.   The cap according to any one of claims 1 to 3, wherein the closing body is connected to the cap body through a connecting means that can be cut by the push-up. A closure device comprising a container and a cap attached to the mouth thereof,
A cap is a thing of any one of Claims 1-4, The closing device characterized by the above-mentioned.   A beverage is filled in the closure device according to claim 5.

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