JP2013075673A - Double container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily attach/detach an inner container to/from an outer container while preventing the outer peripheral part of the inner container from being deformed due to applied external force when attaching/detaching the inner container to/from the outer container.SOLUTION: The double container 1 is configured as follows. A plurality of first engaging projecting pieces 11c projecting radially outward and placed on an opening end 12c of a mouth part 12a of an outer container 12 are formed in a mouth part 11a of an inner container 11 at intervals in a circumferential direction. A lock ring 2 is fitted in the mouth part 12 of the outer container 12 so as to be circumferentially rotatable, while axial movement is regulated. The lock ring 2 has a second engaging projecting piece 21 protruding radially inward and holding the first engaging projecting pieces 11c with the opening end 12c of the mouth part 12a of the outer container 12. The lock ring 2 is rotated to move with respect to the inner container and the outer container 12, to hold or release the first engaging projecting piece 11c by the second engaging projecting piece 21 and the opening edge 12c of the mouth part 12a of the outer container 12.

Description

  The present invention relates to a double container in which an inner container and an outer container are combined.

2. Description of the Related Art Conventionally, a double container is known that includes an inner container that stores contents and an outer container that detachably stores the inner container.
In this type of double container, when the inner container is attached to and detached from the outer container, the outer peripheral part of the inner container is deformed by the applied external force, so that the inner container can be easily attached to and detached from the outer container. There was a case that could not be.

Therefore, as a means for solving such a problem, for example, as shown in Patent Document 1 below, the upper end is supported on the inner container by being pressed from the outer peripheral portion and pressing the radially outer pressing surface. A configuration is known in which a pressing portion that rotates inward in the radial direction is provided, and an outer container is provided with a locked portion in which the pressing portion is detachably locked.
In this double container, when the inner container is attached to and detached from the outer container, the pressing part of the inner container is elastically displaced in the radial direction so that the pressing part is engaged with and disengaged from the locked part of the outer container. It has become so.

JP 2010-195484 A

  However, the conventional double container has room for improvement in preventing the outer peripheral portion of the inner container from being deformed by the applied external force when the inner container is attached to and detached from the outer container.

  The present invention has been made in view of such circumstances, and prevents the outer peripheral portion of the inner container from being deformed by an applied external force when the inner container is attached to or detached from the outer container. It aims at providing the double container which can be easily attached or detached with respect to an outer container.

In order to achieve the above object, the present invention provides the following means.
The double container according to the present invention is a double container comprising an inner container in which contents are stored, and an outer container in which the inner container is detachably stored. A plurality of first engaging protrusions projecting outward in the radial direction and placed on the opening edge of the mouth of the outer container are formed at intervals in the circumferential direction, and the mouth of the outer container A lock ring having a second engagement protrusion that projects inward in the radial direction and sandwiches the first engagement protrusion between the opening edge of the mouth of the outer container restricts movement in the axial direction. In this state, it is fitted so as to be rotatable in the circumferential direction, and with the rotational movement of the lock ring with respect to the inner container and the outer container, by the second engagement protrusion and the opening edge of the mouth of the outer container It is characterized in that the first engaging protrusion piece is sandwiched and released.

According to the double container of the present invention, in a state where the second engagement protrusion of the lock ring and the opening edge of the outer container sandwich the first engagement protrusion of the inner container, the inner container and the outer container are The inner container cannot be moved relatively apart in the axial direction, and the inner container is fixed to the outer container.
When removing the inner container in the outer container, first, the lock ring is rotated with respect to the inner container and the outer container, whereby the first engagement by the second engaging protrusion and the opening edge of the outer container. The sandwiching of the projecting piece is released, the inner container and the outer container can be relatively moved apart in the axial direction, and the inner container can be removed from the outer container.

  As described above, when attaching / detaching the inner container to / from the outer container, for example, without pressing the inner container, it is only necessary to rotate the lock ring relative to the inner container and the outer container. For example, the outer peripheral surface can be prevented from being deformed and pressed against the inner peripheral surface of the outer container, and the inner container can be easily attached to and detached from the outer container.

  Further, when attaching / detaching the inner container, it is not necessary to remove the lock ring from the outer container, so that the usability can be improved. For example, when the lock ring is screwed to the outer container and the lock ring has an annular second engaging protrusion extending over the entire circumference, the inner container is taken out after the lock ring is removed from the outer container. This operation is required. However, in the case of the present invention, the amount of rotation required for releasing the engagement between the inner container and the outer container is smaller than in the case of the screw type screwed without removing the lock ring from the outer container. can do.

  According to the double container of the present invention, when the inner container is attached to or detached from the outer container, the outer peripheral portion of the inner container is prevented from being deformed by the applied external force, and the inner container can be easily removed from the outer container. It can be attached and detached.

FIG. 6 is a half sectional view of a double container for explaining an embodiment of the present invention, and is a sectional view taken along line AA shown in FIG. 5. FIG. 2 is a half cross-sectional view showing a state where an inner container of the double container of FIG. 1 is removed from an outer container. It is a top view of the inner container shown in FIG. FIG. 6 is a half cross-sectional view showing a state in which the overcap is removed from the double container of FIG. 1, and is a cross-sectional view taken along line BB shown in FIG. 5. It is a top view of the double container shown in FIG. 4, Comprising: It is a figure of the state by which the movement of the axial direction of the inner container was controlled by the lock ring. It is a top view of the double container shown in FIG. 4, Comprising: It is a figure of the state by which the restriction | limiting of the movement of the axial direction of the inner container by a lock ring was cancelled | released.

  Hereinafter, an embodiment of a double container according to the present invention will be described with reference to the drawings.

As shown in FIGS. 1 and 2, the double container 1 of the present embodiment includes an inner container 11 in which contents are accommodated, and an outer container 12 in which the inner container 11 is detachably accommodated. The lock ring 2 that prevents the inner container 11 housed in the container 12 from being detached is attached to the outer container 12, and an overcap 3 that is attached to the mouth 11 a of the inner container 11 is provided.
The inner container 11 and the outer container 12 are each formed in a bottomed cylindrical shape, and are disposed so that the central axes are located on a common axis. Hereinafter, this common axis is referred to as the central axis O, the mouths 11a, 12a side is referred to as the upper side, the bottoms 11b, 12b side is referred to as the lower side, and the direction perpendicular to the central axis O is the direction along the central axis O direction. The radial direction is referred to as the circumferential direction.

In the mouth portion 11a of the inner container 11, first engaging projection pieces 11c that protrude outward in the radial direction and are placed on the opening edge 12c of the mouth portion 12a of the outer container 12 are spaced apart in the circumferential direction. Are formed (see FIG. 3). A thin-walled cap 13 that closes the opening of the mouth portion 11a or a male screw portion 11d to which the overcap 3 is attached is formed on the outer peripheral portion of the mouth portion 11a that is located above the first engaging protrusion 11c. ing. The thin cap 13 is attached to the inner container 11 before being stored in the outer container 12, for example, and is removed when the inner container 11 is stored in the outer container 12.
The bottom 11b of the inner container 11 is formed in a mortar shape (hemispherical shape) that bulges downward.

  In the mouth portion 12a of the outer container 12, a portion (inner cylinder 12A) of the outer container 12 located below the mouth portion 12a is projected from the outside in the radial direction. A surrounding outer cylinder 12B is disposed.

As shown in FIG. 1 and FIG. 4, the mouth portion 12 a of the outer container 12 is provided with a concave groove 12 d that allows the lock ring 2 to be undercut fitted on the outer peripheral surface along the circumferential direction.
As shown in FIG. 2, on the opening edge 12 c of the outer container 12, a detent piece 12 e that engages with the first engagement protruding piece 11 c is provided to project toward a plurality of upwards at intervals in the circumferential direction. ing. That is, the first engagement protrusion 11c is placed on the opening edge 12c in a state where the first engagement protrusion 11c is engaged with the rotation prevention piece 12e, and thereby the inner container 11 and the outer container 12 are rotated in the relative circumferential direction. Has the function of restricting rotation.

  As shown in FIGS. 2 and 4 to 6, the lock ring 2 is undercut fitted to the mouth portion 12 a of the outer container 12, and is rotatable in the circumferential direction in a state where relative movement in the axial direction is restricted. Is fitted. At the upper end of the lock ring 2, there is a second engagement protrusion 21 that protrudes radially inward and sandwiches the first engagement protrusion 11 c between the opening edge 12 c of the mouth 12 a of the outer container 12. A plurality are formed at intervals in the direction. Here, between the second engaging protrusions 21 and 21 adjacent to each other in the circumferential direction, a concave portion 22 having a radially inner side opened is formed. The recess 22 is formed in the same shape as the first engagement protrusion 11c and slightly larger than this.

  And the double container 1 is the 1st engagement by the 2nd engagement protrusion 21 and the opening edge 12c of the opening | mouth part 12a of the outer container 12 with the rotational movement of the lock ring 2 with respect to the inner container 11 and the outer container 12. It is configured so that the pinching of the mating piece 11c (locked state T shown in FIG. 5) and its release (released state R shown in FIG. 6) are switched. In the released state R, the sandwiching of the first engagement protrusion 11c by the second engagement protrusion 21 and the opening edge 12c of the outer container 12 is released, and the first engagement protrusion 11c is locked ring 2 in plan view. The upper part of the first engaging protrusion 11c is in an open state.

  As shown in FIG. 1, the overcap 3 includes a threaded cylinder 31 that is screwed into the inner container 11, a surrounding cylinder 32 that surrounds the threaded cylinder 31 from the outside in the radial direction, and both the cylinders 31, And a ceiling wall portion 33 that integrally covers 32 from above. On the inner peripheral surface of the screwed cylinder 31, a female screw portion 31a that is screwed into the male screw portion 11d of the mouth portion 11a of the inner container 11 is formed. A disk-shaped packing 34 is fitted inside the top wall 33. The packing 34 is tightly sealed to the upper end surface of the mouth portion 11 a of the inner container 11 to seal the inside of the inner container 11. The lock ring 2 is covered with a surrounding cylinder 32.

According to the double container 1 by this embodiment demonstrated above, there exist the following effects.
That is, in the double container 1 configured as described above, as shown in FIGS. 1 and 5, the second engagement protrusion piece 21 of the lock ring 2 and the opening edge 12 c of the outer container 12 are connected to the inner container 11. The inner container 11 and the outer container 12 cannot be moved relative to each other in the axial direction in a state where the first engaging protrusion 11 c is sandwiched, and the inner container 11 is fixed to the outer container 12.

  4 and 6, when the inner container 11 in the outer container 12 is removed, the lock ring 2 is first placed in the state in which the overcap 3 is removed from the mouth portion 11a of the inner container 11. The first engaging protrusion 11c is positioned in the recess 22 of the lock ring 2 in a plan view by rotating with respect to the container 11 and the outer container 12, thereby opening the second engaging protrusion 21 and the open end of the outer container 12. The sandwiching of the first engaging protrusion 11c with the edge 12c is released. That is, since the second engagement protrusion 21 is not positioned above the first engagement protrusion 11c, the inner container 11 and the outer container 12 can be relatively moved apart in the axial direction. 11 can be removed from the outer container 12 and removed.

  As described above, when the inner container 11 is attached to and detached from the outer container 12, for example, even if the inner container 11 is not pressed, the lock ring 2 is simply rotated and moved with respect to the inner container 11 and the outer container 12. Therefore, it is possible to prevent the inner container 11 from being deformed and, for example, the outer peripheral surface thereof being pressed against the inner peripheral surface of the outer container 12, and the inner container 11 can be easily attached to and detached from the outer container 12. Can do.

  In addition, for example, when the lock ring is screwed to the outer container and the lock ring has an annular second engaging protrusion over the entire circumference, the inner container is removed after the lock ring is removed from the outer container. The operation of taking out is necessary. On the other hand, in this Embodiment, when attaching / detaching the inner container 11, it is not necessary to remove the lock ring 2 from the outer container 12, Therefore Usability can be improved. Furthermore, in the lock ring 2 of the present embodiment, the amount of rotation necessary for releasing the engagement between the inner container 11 and the outer container 12 can be reduced as compared with the screw type screwed.

  In addition, since the inner container 11 is suspended from the opening edge 12c of the outer container 12 by the first engaging protrusion 11c, it is difficult to use the inner container 11 alone as in the embodiment (on a desk or the like). Even if the bottom is designed to be hemispherical, it can be used without problems.

  The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, in the above-described embodiment, a plurality of the second engagement protrusions 21 of the lock ring 2 are formed at intervals over the entire circumference in the circumferential direction, but the number is not limited to a plurality. For example, at least one second engagement protrusion 21 is sufficient. However, it is possible to secure a support balance in the circumferential direction by providing a plurality of second engagement protrusions 21 rather than one.
Further, positioning means may be provided so as to move between the locked state and the released state of the lock ring 2.

In the present embodiment, the outer container 12 has a bottomed cylindrical shape having a bottom portion 12b, but may be a cylindrical body having an open bottom portion.
Further, the lock ring 2 is not limited to the undercut fitting with respect to the mouth portion 12a of the outer container 12.
Furthermore, in the double container 1 of the present embodiment, the configuration provided with the overcap 3 has been described as an example, but the present invention is not limited to this, and the configuration in which the overcap 3 is omitted, A configuration in which a lid member having another shape is provided is also possible.

  In addition, the constituent elements in the above-described embodiments can be appropriately replaced with known constituent elements without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Double container 2 Lock ring 3 Overcap 11 Inner container 11a Oral part 11c 1st engagement protrusion 12 Outer container 12a Oral part 12c Opening edge 21 2nd engagement protrusion 22 Recessed part O Center axis

Claims (1)

A double container comprising an inner container in which contents are stored, and an outer container in which the inner container is detachably stored,
A plurality of first engaging protrusions that protrude outward in the radial direction and are placed on the opening edge of the mouth of the outer container are formed at intervals in the circumferential direction at the mouth of the inner container. ,
A lock ring having a second engagement protrusion protruding from the mouth of the outer container toward the inside in the radial direction and sandwiching the first engagement protrusion between the opening edge of the mouth of the outer container Is fitted so as to be freely rotatable in the circumferential direction with axial movement restricted.
With the rotational movement of the lock ring with respect to the inner container and the outer container, the second engaging protrusion and the opening edge of the mouth of the outer container are sandwiched and released. A double container characterized by being configured to be switched.

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