JP4846466B2 - Cap and closure device and beverage closure device - Google Patents

Description

  The present invention relates to a cap for closing a container mouth, 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. The present invention relates to a cap, a closing device, and a beverage containing closing device.

Conventionally, a cap provided with a cap body and a closing body 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.
JP 2000-191015 A

In the conventional cap, since the closing body is attached to the cap body, when the closing body is opened and the content liquid is taken out from the container, for example, when drinking a beverage in the container, the closing body becomes in the way and the operation is disturbed. It became difficult to do.
The present invention has been made in view of the above circumstances. In a cap provided with a cap body and a closing body rotatably attached to the cap body via a hinge portion, the operability when taking out the content liquid is improved. An object is to provide an excellent cap, a closing device using the cap, and a beverage containing closing device.

The cap of the present invention includes a cylindrical cap body, and a closing body that is rotatably attached to the cap body via a hinge portion and opens and closes an upper opening of the cap body. A receiving protrusion protruding outward in the radial direction of the cap body is formed, and the closing body has a locking protrusion that climbs onto and locks the receiving protrusion when the upper opening is opened, and the receiving protrusion is And an inclined surface that abuts when the locking protrusion rides, and the inclined surface is formed so as to gradually increase a protruding height in a direction in which the locking protrusion rides, and the hinge portion with respect to the closing body The connecting position is such that the tensile force applied to the closing body by the hinge portion acts in the opening direction in a state where the locking protrusion is locked to the receiving protrusion .
In the present invention, the connection position of the hinge portion with respect to the closing body may be a position that is lower than the locking position of the locking protrusion with respect to the receiving protrusion in a state where the locking protrusion is locked to the receiving protrusion. .
It is preferable that the receiving projection has a projecting end surface that abuts in a state where the locking projection rides, and the projecting end surface is formed to be substantially flat.
It is preferable that the locking protrusion is formed so as to be locked to the receiving protrusion when a rotation angle of the closing body from a closed state exceeds 180 degrees.
In this invention, the said hinge part consists of two connection parts which connect the said cap main body and the said closure body, The circumferential direction position of these connection parts is the structure which is one side and the other side with respect to the said receiving protrusion. Can be adopted.

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 body has a locking projection that rides on the receiving projection and locks by turning in the opening direction.
Since the receiving protrusion is formed to protrude outward in the radial direction of the cap body, there is a sufficient space below the receiving protrusion. Further, the locking protrusion in the locked state is in a state of riding on the receiving protrusion. For this reason, even when the rotation angle of the closing body is large (for example, exceeding 180 degrees), the rotation is not hindered by the cap body.
Therefore, the closing body can be locked at a larger rotation angle. Therefore, an operation for taking out the content liquid, for example, an operation for drinking a beverage in the container is facilitated.

1 to 4 show a closing device using an example of a cap of the present invention. FIG. 1 is a side view of the cap, FIG. 2 is a front view, and FIG. 3 is a perspective view showing a main part of the cap. FIG. 4 is a partially sectional perspective view showing the closing device.
As shown in FIG. 4, 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.
The cap body 2 is divided into a main part 8 and a tamper evidence ring part 9 (hereinafter referred to as a TE ring part 9) by a horizontal score 6 (weakening line).
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 mouth portion 31 is formed.
The TE ring portion 9 is connected to the lower end of the main portion 8 by a bridge 7. 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.

As shown in FIGS. 1 to 3, an extension 25 extending upward in the axial direction of the cap body 2 is formed on the upper edge 2 b of the cap body 2. The extending part 25 is formed in a plate shape along the circumferential direction.
A receiving projection 26 is formed on the outer surface of the extended portion 25 so as to project radially outward of the cap body 2. The receiving protrusion 26 preferably protrudes outward from the outer surface of the cap body 2.
As shown in FIG. 3, the receiving protrusion 26 includes an upper surface 26 a that is substantially perpendicular to the axial direction of the cap body 2, a protruding end surface 26 b that extends along the axial direction, and an inclined surface that gradually increases the protruding height upward. And a lower surface 26c.
The protruding end face 26b is preferably formed to be substantially flat.
If the extending part 25 is formed so that the inner surface side is in contact with the mouth part 31 of the container 30, it does not bend inward when the closing body 3 is opened, and the operation of the closing body 3 is stabilized.

Two hinge bases 24 extending upward along the axial direction of the cap body 2 are formed on the upper edge 2 b of the cap body 2. The hinge base portion 24 is formed in a plate shape along the circumferential direction, and the upper edge portion 24 a can be formed so as to gradually reduce the height in a direction away from the extending portion 25.
The circumferential position of the hinge base portion 24 is set to one side and the other side of the extending portion 25.

As shown in FIG. 4, the closing body 3 is configured to close the mouth portion 31 so as to be freely opened and closed, 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. The operation 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 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 the upper male screw 34 of the mouth portion 31 is formed. The closing screw portion 17 may be a single thread or a multiple thread.

As shown in FIG. 2, the cylindrical portion 5 is formed with a concave portion 5 a that is a substantially rectangular cutout. The inner edge 5 b of the recess 5 a is formed along the circumferential direction of the closing body 3.
A locking projection 27 protruding outward in the radial direction of the closing body 3 is formed at a substantially central portion of the inner edge 5b of the recess 5a.
As shown in FIGS. 1 and 3, the locking protrusion 27 includes a locking surface 27 a that is an inclined surface that descends radially outward, and a lower surface 27 b that is substantially perpendicular to the axial direction of the closing body 3. It has a substantially triangular cross section.

The closing body 3 is attached to the cap body 2 via a hinge part 21 and is rotatable by the hinge part 21.
The hinge part 21 includes two connecting parts 23. The connecting portion 23 is formed between the inner edge 5 b of the recess 5 a and the upper edge 24 a of the hinge base 24.
The connection part 23 is made into the thin plate shape along the circumferential direction, and has flexibility.
The connecting portion 23 is connected to the hinge base portion 24 at the base end portion 23a, and is connected to the closing body 3 at the tip end portion 23b. The circumferential position of the connecting portion 23 is one side and the other side of the receiving projection 26.

The closing body 3 is preferably connected to the upper end of the cap body 2 via a bridge (not shown) which is connection means. This bridge can be formed so that it can be easily broken by applying an upward force to the closing body 3 and the closing body 3 can be opened.
As shown in FIG. 4, 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. In addition, illustration of the knurl part was abbreviate | omitted in drawings other than FIG.
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. 4, the 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 may be a single thread or a multiple thread.
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.
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. 1 and 5 to 7.
FIG. 5 is an explanatory view showing the operation of the cap 1, FIG. 6 is a side view showing the cap 1 with the closing body 3 opened, and FIG. 7 shows the cap 1 with the closing body 3 opened. It is a principal part enlarged view.

Hereinafter, the operation of the cap 1 will be described in detail with reference to FIG. 5A to 5E, the rotation angles of the closing body 3 from the closed state shown in FIG. 1 are 0 degree, about 90 degrees, about 135 degrees, about 180 degrees, and about 225 degrees, respectively. Show the case. In addition, illustration of the hinge part 21 was abbreviate | omitted in FIG.
As shown in FIGS. 1, 5 (a) and 5 (b), when an upward force is applied to the operation portion 16, a bridge (not shown) connecting the closing body 3 and the cap body 2 is broken. The closing body 3 is rotated clockwise (opening direction) in the figure by the hinge portion 21.
As a result, the upper opening 2a of the cap body 2 is opened, the seal protrusions 12, 13, and 14 are separated from the mouth portion 31, and the sealing of the container 30 is released.

  As shown in FIG. 5B, when the rotation angle increases, the closing body 3 rotates while the locking projection 27 contacts the receiving projection 26. In the position shown in this figure, the lower surface 27b of the locking projection 27 contacts the protruding end surface 26b. By the rotation of the closing body 3, the connecting portion 23 is elastically bent and deformed mainly at the base end portion 23a.

As shown in FIG. 5C, when the closing body 3 is further rotated, the tip 27 c of the locking protrusion 27 reaches below the receiving protrusion 26. In the position shown in this figure, the lower surface 27 b of the locking projection 27 contacts the lower surface 26 c of the receiving projection 26.
As shown in FIG. 5D, when the closing body 3 is further rotated, the tip 27 c of the locking protrusion 27 comes into contact with the lower surface 26 c of the receiving protrusion 26.

As shown in FIG. 5 (e), when the closing body 3 is further rotated, the locking projection 27 rises along the lower surface 26c that is an inclined surface. Since the lower surface 26c is formed so as to gradually increase the protruding height upward, in this process, a force in a direction away from the cap body 2 is applied to the locking protrusion 27 while gradually increasing.
For this reason, the latching protrusion 27 moves in a direction away from the cap body 2, and the tensile force acting on the closing body 3 by the connecting portion 23 increases, and the resistance to the operation in the opening direction increases.

When the closing body 3 is further rotated, the locking projection 27 is engaged with the receiving projection 26 and locked. When the tip 27c of the locking projection 27 reaches the protruding end surface 26b, the force acting on the locking projection 27 does not increase any more, so the resistance to the movement in the opening direction is reduced and a click feeling is obtained.
As shown in FIG. 5 (e), there is a sufficient space below the receiving protrusion 26, and the locking protrusion 27 rides on the receiving protrusion 26. Therefore, the rotation angle of the closing body 3 is 180 degrees. In spite of exceeding the degree, the upper part of the closing body 3 (near the peripheral edge of the top plate part 4) is not in contact with the cap body 2, and the rotation of the closing body 3 is not hindered.

When the locking protrusion 27 is locked to the receiving protrusion 26, the closing body 3 is positioned and its posture is maintained. Hereinafter, this state is referred to as a locked state. In the position shown in this figure, the locking surface 27 a of the locking projection 27 contacts the protruding end surface 26 b of the receiving projection 26.
Since the protruding end surface 26b is formed to be substantially flat, the dimension in the height direction is sufficiently large. For this reason, even when there is some variation in the height position of the locking projection 27, the locking projection 27 is reliably locked to the protruding end surface 26b. Further, since the locking projection 27 and the receiving projection 26 are in surface contact, the posture of the locking projection 27 is not easily changed, and the locking projection 27 and the receiving projection 26 are stably locked.
The rotation angle of the closing body 3 when the locking protrusion 27 is locked to the receiving protrusion 26 is preferably 180 degrees or more, and more preferably more than 180 degrees.

As shown in FIGS. 6 and 7, in the locked state, the connection position 28 of the connecting portion 23 with respect to the closing body 3 is lower than the contact position (locking position) between the locking surface 27a and the protruding end surface 26b. It is in.
Since a pulling force is applied to the closing body 3 substantially leftward in the drawing by the connecting portion 23, a clockwise force (opening direction) acts with the locking position as a fulcrum. In the locked state, this force balances with the elastic restoring force of the connecting portion 23, so that the posture of the closing body 3 is stably maintained.

  When the closing body 3 is pressed counterclockwise (in the closing direction), the locking protrusion 27 is disengaged from the receiving protrusion 26, and the closing body 3 rotates through a process opposite to the opening process shown in FIG. Part 31 is closed.

  When the cap body 2 is rotated in the opening direction, the TE ring portion 9 is locked to the bulging step portion 33, so that the main portion 8 rises as it rotates, while the TE ring portion 9 is prevented from moving upward. As a result, 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 body 3 has a locking projection 27 that rides on the receiving projection 26 and locks by turning in the opening direction.
As shown in FIG. 5 (e), the receiving protrusion 26 is formed so as to protrude outward in the radial direction of the cap body 2, so that there is a sufficient space below the receiving protrusion 26. Further, the locking protrusion 27 in the locked state is in a state of riding on the receiving protrusion 26. For this reason, even when the rotation angle of the closing body 3 is large (for example, exceeding 180 degrees), the cap body 2 does not inhibit the rotation.
Therefore, the closing body 3 can be locked at a larger rotation angle. Therefore, an operation for taking out the content liquid, for example, an operation for drinking a beverage in the container is facilitated.

In the cap 1, the rotation angle of the closing body 3 in the locked state is a value corresponding to the height of the receiving protrusion 26. Therefore, the rotation angle of the closing body 3 is adjusted by adjusting the protruding height of the receiving protrusion 26. Can be easily adjusted.
Moreover, since the receiving protrusion 26 has the lower surface 26c which is an inclined surface, the resistance when the latching protrusion 27 rides on the receiving protrusion 26 can be reduced, and the opening operation of the closing body 3 can be facilitated.
Further, since the two connecting portions 23 are formed on both sides of the receiving projection 26, the hinge portion 21 is unlikely to be twisted and the posture of the closing body 3 when rotating can be prevented.

Some caps of this type are provided with a cylindrical spout inside the cap body, but this structure is complex, so it is difficult to mold with the closed body closed. The cap of this type is molded in a state where the closing body is opened with respect to the cap body.
On the other hand, since the structure of the cap 1 is simple, the cap 1 can be molded by compression molding or injection molding with the closing body 3 closed (the state shown in FIGS. 1 and 2). For this reason, the projected area of the cap 1 can be minimized, and the number that can be produced with one mold can be increased. Therefore, it is advantageous in terms of manufacturing cost.

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 side view which shows an example of the cap concerning this invention. It is a front view of the cap shown in FIG. It is a perspective view which shows the principal part of the cap shown in FIG. It is a partial cross section perspective view which shows the closing apparatus using the cap shown in FIG. It is explanatory drawing which shows operation | movement of the cap shown in FIG. It is a side view which shows the cap of the state which open | released the closing body. It is a principal part enlarged view which shows the cap of the state which open | released the closing body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Cap, 2 ... Cap main body, 2a ... Upper opening, 3 ... Closed body, 21 ... Hinge part, 23 ... Connection part, 26 ... Receiving protrusion, 26b ... Projection end surface, 26c ... Lower surface (inclination) Surface), 27 ... locking protrusion, 28 ... connection position, 30 ... container, 31 ... mouth part.

Claims (7)

A cylindrical cap body, and a closing body that is rotatably attached to the cap body via a hinge part and opens and closes the upper opening of the cap body,
The cap body is formed with a receiving protrusion protruding outward in the radial direction of the cap body,
The closing body has a locking projection that climbs onto and locks the receiving projection when the upper opening is opened,
The receiving projection has an inclined surface that abuts when the locking projection rides, and the inclined surface is formed so that the protruding height gradually increases in the direction in which the locking projection rides,
The connecting position of the hinge portion with respect to the closing body is such that a tensile force applied to the closing body by the hinge portion acts in the opening direction in a state where the locking protrusion is locked to the receiving protrusion. And cap.   2. The connecting position of the hinge part with respect to the closing body is lower than the locking position of the locking protrusion with respect to the receiving protrusion in a state where the locking protrusion is locked with the receiving protrusion. Cap as described in.   The cap according to claim 1, wherein the receiving protrusion has a protruding end surface that abuts in a state where the locking protrusion rides, and the protruding end surface is formed to be substantially flat.   The said latching protrusion is formed so that it may latch on the said receiving protrusion, when the rotation angle of the said closing body from a closed state exceeds 180 degree | times. The cap according to claim 1. The hinge portion is composed of two connecting portions that connect the cap body and the closing body,
The cap according to any one of claims 1 to 4, wherein the circumferential positions of the connecting portions are on one side and the other side with respect to the receiving protrusion. A closure device comprising a container and a cap attached to the mouth thereof,
A cap is a thing of any one of Claims 1-5, The closing device characterized by the above-mentioned.   A beverage is filled in the closure device according to claim 6, wherein the beverage-containing closure device is characterized.

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