JP6710469B2 - Double container - Google Patents

Description

The present invention has a bottomed cylindrical inner container filled with contents, and an outer container provided with a cylindrical storage part for accommodating the inner container inside, and the inner container is detachable from the outer container. Regarding the double container.

Conventionally, as a container for storing contents such as creamy cosmetics, a bottomed cylindrical inner container filled with the contents and an outer container having a cylindrical storage portion for storing the inner container inside are provided. A double container is known in which the inner container is detachable from the outer container. In such a double container, after the contents have been used up, the empty inner container is removed from the outer container and replaced with a new refill inner container filled with the contents, so that the outer container can be refilled. Can be used.

In order to remove the inner container from the outer container when exchanging the inner container, the double container is provided with an attachment/detachment mechanism. For example, in Patent Document 1, a plate-shaped pressing piece that is displaceable toward the inside of the container with the upper end serving as a fulcrum by a pressing operation is provided in the inner container, and a notch portion that exposes the plate-shaped pressing piece is provided in the outer container. An attachment/detachment mechanism having a configuration in which a locked portion that can lock the plate-shaped pressing piece is provided has been proposed. According to this attachment/detachment mechanism, the inner container can be removed from the outer container by pulling out the inner container while pressing the plate-shaped pressing piece inward in the radial direction. Further, when a new inner container is attached, the locking portion can be engaged with the locked portion to hold the inner container in the outer container.

JP, 2010-195484, A

In the above double container, in order to reduce the cost of the disposable inner container configured as a refill container, it is required to simplify the structure of the inner container.

However, in the above-mentioned conventional double container, since the plate-shaped pressing piece that constitutes the attachment/detachment mechanism is provided in the inner container, the structure of the inner container becomes complicated, and the plate-shaped pressing piece is deformed during distribution or the like. There was a concern that damage might occur.

Further, in the above-mentioned conventional double container, when removing the inner container from the outer container, it is necessary to pull up the inner container while pressing the plate-shaped pressing piece, so that there is also a problem that the removal work is complicated. It was

The present invention has an object to solve such a problem, and an object thereof is to provide a double container in which the inner container can be easily removed from the outer container while the inner container has a simple structure. To do.

The double container of the present invention has a bottomed cylindrical inner container filled with contents, and an outer container provided with a cylindrical housing portion for housing the inner container, wherein the inner container is A double container that is detachable from an outer container, and is integrally provided in the tubular storage portion, one end is a fixed end, and the other end is freely displaceable toward the inside of the tubular storage portion. An elastically deformable plate-shaped pressing piece that serves as an end, and a pressed surface that is provided in the inner container and that faces the pressing surface that is provided on the plate-shaped pressing piece. And, at least one of the pressed surface is formed into an inclined surface, and by pushing the free end of the plate-shaped pressing piece toward the inside of the cylindrical storage portion, the pressing surface and the pressed surface are It is characterized in that the inner container is pushed upward from the outer container by being in sliding contact with each other.

In the double container of the present invention, in the above structure, the plate-shaped pressing piece has a fixed end at the upper end and a free end at the lower end, and the pressed surface is formed at the lower end portion of the side surface of the inner container. preferable.

In the double container of the present invention, in the above structure, it is preferable that both the pressing surface and the pressed surface are formed as inclined surfaces.

In the double container of the present invention having the above-mentioned configuration, it is preferable that the outer container includes a bottom wall that is integrally formed with the tubular storage portion and closes a lower end of the tubular storage portion.

In the double container of the present invention, in the above-mentioned configuration, the outer container is integrally connected to the tubular storage portion, and a connecting wall extending outward from the tubular storage portion is integrally connected to the connecting wall. It is preferable to have an outer tubular wall that is arranged outside the tubular housing portion with a space and covers the plate-shaped pressing piece.

In the double container of the present invention having the above-mentioned configuration, it is preferable that a pair of the plate-shaped pressing pieces are provided in the tubular storage portion so as to face each other with the axis of the tubular storage portion interposed therebetween.

In the double container of the present invention, in the above configuration, a strip-shaped protrusion projecting from the side face and extending in the vertical direction is integrally provided on a side surface of the inner container, and the pressed surface is provided at a lower end of the strip-shaped projection. It is preferably provided.

According to the present invention, it is possible to provide a double container in which the inner container can be easily removed from the outer container while the inner container has a simple structure.

It is a half cross-sectional view from the front view of the double container according to the embodiment of the present invention. It is a half cross-sectional view in side view of the double container shown in FIG. It is a side view in the empty state of the inner container shown in FIG. (A) is a top view of the inner container shown in FIG. 3, and (b) is a bottom view of the same. (A) is a top view of the outer container shown in FIG. 1, and (b) is a bottom view of the same. It is explanatory drawing which shows a mode that a plate-shaped pressing piece is pushed in and an inner container is taken out from an outer container.

Hereinafter, a double container 1 according to an embodiment of the present invention will be described in detail with reference to the drawings.

In the specification and claims, the vertical direction means the vertical direction when the double container 1 is in the upright posture shown in FIG.

As shown in FIGS. 1 and 2, the double container 1 according to the present embodiment includes an inner container 10, an outer container 20, a cap 30, and a take-out mechanism 40.

The inner container 10 is a refill container, and as shown in FIGS. 3 and 4, is formed in a bottomed tubular shape having a cylindrical side wall portion 11 and a bottom portion 12. The inner container 10 is filled with the content C such as cream-like cosmetics. The open end of the inner container 10 is hermetically sealed with a seal material 13, and the seal material 13 can be peeled off to open the inner container 10 at the time of use.

A flange 14 is integrally provided at the open end of the inner container 10. Further, on the outer peripheral surface of the side wall portion 11 of the inner container 10, a pair of strip-shaped protrusions that respectively project radially outward from the side surface with a predetermined thickness and extend in the up-down direction and face each other with the axial center of the inner container 10 interposed therebetween. The part 15 is integrally provided. Each of the pair of strip-shaped protrusions 15 is formed with a wide portion 15a integrally connected to the flange 14 and a narrow portion integrally formed at a lower end of the wide portion 15a so as to have a circumferential width and a protrusion height smaller than that of the wide portion 15a. 15b. The narrow portion 15b extends to the bottom portion 12 of the inner container 10, and its lower end is adjacent to the bottom portion 12.

Pressed surfaces 16 are formed at the lower ends of the narrow portions 15b. The pressed surface 16 is formed as a flat inclined surface that gradually inclines in a direction away from the axial center of the inner container 10 toward the radially outer side from the lower side to the upper side. Since the pressed surface 16 is provided at the lower end portion of the side surface of the inner container 10, it is adjacent to the bottom portion 12 of the inner container 10.

A male screw 17 is integrally formed on the outer peripheral surface of the wide portion 15a. The male screw 17 is for mounting the cap 30. The male screw 17 extends within the width of the wide portion 15 a in the circumferential direction and is connected to the male screw 21 (see FIG. 2) provided on the outer container 20.

As shown in FIG. 1, the outer container 20 has a bottomed tubular shape having a tubular housing portion 22 and a bottom wall 23 formed integrally with the tubular housing portion 22 to close the lower end of the tubular housing portion 22. Is formed in. The outer container 20 houses the inner container 10 inside the cylindrical housing portion 22. The inner container 10 is detachable from the outer container 20. That is, the inner container 10 can be taken out from the cylindrical storage portion 22 of the outer container 20 after the content C has been emptied, and a new inner container 10 can be inserted inside the cylindrical storage portion 22. Can be stored inside the tubular storage portion 22.

As shown in FIG. 2, the inner container 10 is vertically positioned with respect to the tubular storage portion 22 by the flange 14 coming into contact with the upper end of the tubular storage portion 22. At this time, there is a slight gap between the bottom portion 12 of the inner container 10 and the bottom wall 23 of the outer container 20. Further, in the inner container 10, an annular locked convex portion 11 a formed on the outer peripheral surface of the side wall portion 11 thereof is undercut engaged with a locking convex portion 22 c formed on the inner peripheral surface of the cylindrical storage portion 22. At the same time, the step portion between the wide portion 15a and the narrow portion 15b is placed in the upward step portion 22d formed on the inner peripheral surface of the cylindrical storage portion 22 of the outer container 20, so that the outer container It is fixed at 20.

As shown in FIG. 1, a connecting wall 24, which is integrally connected to the tubular housing portion 22 and extends radially outward from the tubular housing portion 22, is integrally provided at an intermediate portion in the vertical direction of the tubular housing portion 22. Has been. A portion of the cylindrical housing portion 22 above the connecting wall 24 is a substantially cylindrical male screw forming portion 22a, and the male screw 21 is integrally provided on the outer peripheral surface of the male screw forming portion 22a. .. The male screw 21 has a pitch or shape corresponding to that of the male screw 17 provided on the inner container 10. Further, the male screw forming portion 22a is provided with a pair of cutout portions 25 by cutting out a predetermined range in the circumferential direction, and the wide portion 15a of the inner container 10 is fitted into these cutout portions 25. On the other hand, a portion of the tubular storage portion 22 below the connecting wall 24 is a main body portion 22b.

As shown in FIG. 5, the connecting wall 24 is formed in a plate shape having a substantially elliptical outer shape in a plan view. An outer cylindrical wall 26 is integrally connected to the outer peripheral edge of the connecting wall 24. The outer cylindrical wall 26 is formed in a cylindrical shape having an elliptical cross section in a plan view corresponding to the connecting wall 24, and is arranged radially outside the main body portion 22b of the cylindrical storage portion 22 with a space therebetween. ing. Therefore, on the outside of the main body portion 22b, an operation space S having an open lower portion is defined by the main body portion 22b, the connecting wall 24, and the outer tubular wall 26. The connecting wall 24, the main body portion 22b of the tubular housing portion 22, and the outer tubular wall 26 are integrated in a short diameter portion 27 of the connecting wall 24, as shown in FIG.

A pair of plate-shaped pressing pieces 41 are provided integrally with the main body portion 22b in a portion that becomes the main body portion 22b of the cylindrical storage portion 22. The pair of plate-shaped pressing pieces 41 are arranged so as to face each other with the axis of the cylindrical storage portion 22 interposed therebetween. The pair of plate-shaped pressing pieces 41 are each formed into a flat and elastically deformable plate shape, and are integrally connected to the main body portion 22b at the upper end, and the lower end and both side portions are cut out from the main body portion 22b by the notched grooves. It is separated. Therefore, the upper end of each plate-shaped pressing piece 41 is a fixed end, and the lower end thereof is a free end that can be displaced toward the inside of the tubular storage portion 22, and the free end is the inside of the tubular storage portion 22. It is elastically deformable so that it can be displaced toward.

The outer tubular wall 26 is arranged radially outside the main body portion 22b of the tubular housing portion 22 with a space, so that the plate-shaped pressing piece 41 is covered by the connecting wall 24 and the outer tubular wall 26. There is. With such a configuration, it is possible to make it difficult to visually recognize the plate-shaped pressing piece 41 from the outside in a state where the double container 1 is in the upright posture, and thus it is possible to enhance the aesthetic appearance of the double container 1. It is possible to prevent erroneous operation.

A block-shaped pressing portion 42 projecting from the inner surface is integrally provided on the inner side surface of the plate-shaped pressing piece 41, and a pressing surface 43 is provided on a surface of the pressing portion 42 facing inward in the radial direction. The pressing surface 43 is formed as a flat inclined surface that gradually inclines in a direction away from the axial center of the inner container 10 toward the outside in the radial direction from the lower side to the upper side. It is arranged facing each other. In addition, in the present embodiment, the inclination angle of the pressing surface 43 is substantially the same as the inclination angle of the pressed surface 16, but the angle can be variously changed.

The plate-like pressing piece 41 having such a pressing surface 43 and the pressed surface 16 constitute the take-out mechanism 40 in the double container 1. The inner container 10 can be easily taken out from the outer container 20 by operating the take-out mechanism 40.

The plate-shaped pressing piece 41 described above can be formed integrally with the outer container 20 by a method such as biting when the outer container 20 is integrally molded by injection molding of a resin material using a mold. it can.

The cap 30 is formed in a cylindrical shape with a top, and is threadably coupled to the male screw 21 formed on the male screw forming portion 22a of the outer container 20 with a female screw 31, and is detachably attached to the outer container 20. Even after the sealing material 13 is removed and the inner container 10 is opened, the opening of the inner container 10 can be closed by attaching the cap 30. Further, since the female screw 31 is screwed to the male screw 21 formed on the wide portion 15a of the inner container 10 in addition to the male screw 21 of the outer container 20, when the cap 30 is mounted, the inner container 10 is capped with the cap 30. It will be fixed to the outer container 20 via. Accordingly, it is possible to prevent the inner container 10 from being unintentionally detached from the outer container 20 when not in use.

In the double container 1 having the above configuration, when the content C is used up, the empty inner container 10 is replaced with a new inner container 10 filled with the content C according to the following procedure. You can

First, the cap 30 is removed from the outer container 20, and then a finger is inserted into the operation space S to push the free end of the plate-shaped pressing piece 41 toward the inside (radially inside) of the cylindrical storage portion 22. .. As a result, as shown in FIG. 6, the pressing surface 43 provided on the plate-shaped pressing piece 41 and the pressed surface 16 provided on the inner container 10 are brought into sliding contact with each other, and the pressing surface 43 is displaced inward in the radial direction. Is converted into an upward force by the sliding contact between the pressing surface 43 and the pressed surface 16, and the inner container 10 is pushed upward with respect to the outer container 20. Then, the used inner container 10 can be easily removed from the outer container 20 by gripping the flange 14 of the inner container 10 pushed upward and pulling the inner container 10 upward.

Next, when the new inner container 10 is attached to the outer container 20, the unused inner container 10 is inserted into the cylindrical storage portion 22 of the outer container 20 from its opening, and the flange 14 is inserted into the outer container 20. The male screw forming portion 22a can be easily mounted by pushing the male screw forming portion 22a to a position where the male screw forming portion 22a abuts on the upper end.

As described above, in the double container 1 according to the present embodiment, when the inner container 10 is replaced, the inner container 10 is removed by a simple operation of pushing the plate-shaped pressing piece 41 provided on the outer container 20 inward. It can be easily removed from the container 20. Further, since the plate-shaped pressing piece 41 for removing the inner container 10 from the outer container 20 is provided on the outer container 20, the structure of the inner container 10 configured as a refill container and disposable can be simplified. ..

Further, since the pair of plate-shaped pressing pieces 41 are provided on both sides of the inner container 10 of the outer container 20, by pressing these plate-shaped pressing pieces 41 so as to sandwich the inner container 10, The inner container 10 can be pushed out evenly on both sides thereof, and the inner container 10 can be pushed out of the outer container 20 more reliably and easily.

It is needless to say that the present invention is not limited to the above-mentioned embodiment and can be variously modified without departing from the scope of the invention.

For example, in the above-described embodiment, the side wall portion 11 of the inner container 10 and the cylindrical storage portion 22 of the outer container 20 are formed in a cylindrical shape, but the present invention is not limited to this, and an elliptical shape, a polygonal shape, or the like may be used. Other shapes may be used.

In addition, in the above-described embodiment, the inner container 10 is provided with the pair of pressed surfaces 16 and the outer container 20 is provided with the pair of plate-like pressing pieces 41. It is only necessary to provide one, and three or more may be provided.

Furthermore, in the above-described embodiment, the pressed surface 16 and the pressing surface 43 are formed as flat inclined surfaces, but the present invention is not limited to this, and the sliding contact with each other causes the force directed inward in the radial direction to rise upward. As long as it can be converted into a force to be directed, it may be formed on a surface of another shape such as a curved surface so that the inclination angle gradually changes.

DESCRIPTION OF SYMBOLS 1 Double container 10 Inner container 11 Side wall part 11a Locked convex part 12 Bottom part 13 Seal material 14 Flange 15 Strip-shaped projection part 15a Wide part 15b Narrow part 16 Pressed surface 17 Male screw 20 Outer container 21 Male screw 22 Cylindrical storage part 22a Male screw forming portion 22b Main body portion 22c Locking convex portion 22d Upward step portion 23 Bottom wall 24 Connecting wall 25 Notch portion 26 Outer tubular wall 27 Short diameter portion 30 Cap 31 Female screw 40 Extraction mechanism 41 Plate-like pressing piece 42 Pressing portion 43 Pressing surface C Contents S Operation space

Claims (7)

It has a bottomed cylindrical inner container filled with contents, and an outer container provided with a cylindrical housing portion for housing the inner container inside, and the inner container is attachable to and detachable from the outer container. A double container,
An elastically deformable plate-shaped pressing piece that is integrally provided in the tubular storage portion, has one end serving as a fixed end and the other end serving as a free end that can be displaced toward the inside of the tubular storage portion.
The inner container is provided, and has a pressed surface arranged facing the pressing surface provided on the plate-like pressing piece,
At least one of the pressing surface and the pressed surface is formed into an inclined surface,
By pushing the free end of the plate-shaped pressing piece toward the inner side of the cylindrical storage portion, the pressing surface and the pressed surface are in sliding contact with each other, and the inner container is pushed upward from the outer container. A double container characterized in that The double container according to claim 1, wherein the plate-shaped pressing piece has an upper end as a fixed end and a lower end as a free end, and the pressed surface is formed at a lower end portion of a side surface of the inner container. The double container according to claim 1 or 2, wherein both the pressing surface and the pressed surface are formed as inclined surfaces. The double container according to any one of claims 1 to 3, wherein the outer container includes a bottom wall that is integrally formed with the tubular storage portion and closes a lower end of the tubular storage portion. The outer container is integrally connected to the tubular storage portion and extends outwardly from the tubular storage portion, and is integrally connected to the connection wall, and is arranged outside the tubular storage portion with a space. The double container according to any one of claims 1 to 4, further comprising: an outer cylindrical wall that covers the plate-shaped pressing piece. The duplex according to any one of claims 1 to 5, wherein a pair of the plate-shaped pressing pieces are provided in the tubular storage portion so as to face each other with an axis of the tubular storage portion interposed therebetween. container. 7. A belt-shaped protrusion protruding from the side and extending in the up-down direction is integrally provided on a side surface of the inner container, and the pressed surface is provided at a lower end of the belt-shaped projection. A double container according to item 1.

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