JP7216939B2 - double container - Google Patents

Description

TECHNICAL FIELD The present invention relates to a double container that can replace a refill container by the same operation as in daily use, and that can replace the refill container with a simple and inexpensive configuration without incorporating complicated structural parts. .

Patent Document 1 discloses a double container that holds a replacement refill container stored in a storage space of the outer container in the outer container so as not to come off from the outer container and that can release the holding of the refill container. and 2 are known.

The "refill container" of Patent Document 1 is a refill container in which the inner container is replaceably provided in the outer container, an auxiliary part is provided in the gap between the outer container and the inner container, and the auxiliary part is adhered to the inner container. At the same time, the auxiliary part is fitted into the outer container via the uneven retaining means, and a turning force is applied to the auxiliary part, whereby the uneven releasing means capable of releasing the retaining by the retaining means is provided on the lower surface of the auxiliary part. and are provided on the inner peripheral surface of the outer container.

The "double container" of Patent Document 2 includes a refill inner container having a bottomed cylindrical content storage portion, an outer container having a bottomed cylindrical inner container storage portion, and an upper end of the inner container storage portion. a rotating member attached to the portion so as to be rotatable about the central axis of the inner container, the inner container being housed in the inner container storing portion so as not to be rotatable about the central axis of the inner container storing portion; has a cylindrical wall disposed inside the side wall of the outer container, and the inner peripheral surface of the cylindrical wall is provided with a female threaded portion corresponding to the male threaded portion provided on the outer peripheral surface of the peripheral wall of the inner container. When replacing the inner container, by rotating the rotating member to one side with respect to the outer container, the male threaded portion and the female threaded portion are engaged to move the inner container upward.

JP 2010-173723 A JP 2016-222288 A

In Patent Literature 1, a part serving as an auxiliary part is attached to the inner container, and the auxiliary part on the side of the inner container and the outer container are prevented from coming off by a retaining means and released by a releasing means. Allows you to exchange equipment.

In Patent Document 2, the outer container is provided with a rotating member having a female threaded portion, and the inner container is formed with a male threaded portion corresponding to the female threaded portion of the rotating member so that when the inner container is replaced, the inner container can be screwed. The inner container is moved upward at the same time.

In any of the patent documents, in order to release the holding of the refill container by the outer container and make it possible to take out the refill container, an auxiliary part provided in the inner container and acting between the outer container and an auxiliary part provided in the outer container It is a rotating member that acts between it and the inner container, and is configured by incorporating complicated parts such as retaining means and releasing means, and also forming an internal thread part. In addition to being large-scale, there is a problem that the cost of the double container is increased due to the adoption of the complicated parts.

In addition, since operations such as rotating the auxiliary part and rotating the rotating member are required, which are different from the opening and closing of the lid, which is the daily usage of the double container as daily necessities, the user cannot use the container. There was also a problem that it was difficult to understand and not easy to use.

The present invention has been devised in view of the above-mentioned conventional problems, and it is possible to replace the refill container with the same operation as in daily use, and it is simple and inexpensive without incorporating complicated structural parts. To provide a double container in which a refill container can be replaced with a simple structure.

The double container according to the present invention includes an outer container in which a storage space opened upward is defined inside a cylindrical peripheral wall portion, and an outer container that is inserted into and stored in the storage space, and an upper end of the peripheral wall portion. a refill container provided with a cylindrical portion protruding upward from the cylindrical portion and a male screw portion provided on the outer peripheral surface of the cylindrical portion; It has an engaging portion that can be releasably engaged and an annular wall portion having a female threaded portion provided on the inner peripheral surface thereof, and the lower end of the annular wall portion is lifted by the tightening operation of tightening the female threaded portion to the male threaded portion. a lid body that is lowered to approach the upper end of the peripheral wall portion, surrounds the cylindrical portion of the refill container and is attached to the upper portion of the outer container; It is mounted so as to be located between the lower end of the wall portion and the upper end of the peripheral wall portion, and is sandwiched between the annular wall portion and the peripheral wall portion during the tightening operation, and the operating force of the tightening operation is applied to the female thread portion. and a ring-shaped member that acts as a push-up force for the refill container via the male screw portion, and the ring- shaped member is a bottom exterior part of the outer container .

The ring-shaped member is formed with a guide piece that can be engaged with the outer surface of at least one of the peripheral wall portion of the outer container and the annular wall portion of the lid body in order to guide the mounting. characterized by

The refill container is characterized by being formed with a locking protrusion that is locked to a locking stepped portion formed at the upper end of the peripheral wall portion of the outer container.

In the double container according to the present invention, the refill container can be replaced by the same operation as in daily use, and the refill container can be replaced with a simple and inexpensive structure without incorporating parts with a complicated structure. be able to.

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing explaining suitable one Embodiment of the double container which concerns on this invention, Comprising: FIG. 1(A) is a whole perspective view, FIG. 1(B) is a partial vertical cross-sectional view. 1. It is the perspective view which showed a mode that a ring-shaped member was attached to the double container shown in FIG. After attaching the ring-shaped member to the double container shown in FIG. 1, it is an explanatory view showing how the lid is attached to the refill container, and FIG. FIG. 3(D) is an enlarged vertical cross-sectional view of the main part of the closed state, and FIG. 3(D) is a further tightening from the state of FIG. It is a partial vertical cross-sectional view in a state of abutting upward. It is a whole perspective view when the double container shown in FIG. 1 is made into the state of FIG.3(D). FIG. 5(E) is an explanatory diagram illustrating a state in which the refill container of the double container shown in FIG. 1 can be pulled out from the outer container, and FIG. A partial vertical cross-sectional view of the state of being pressed against the upper end of the peripheral wall of the container, FIG. FIG. 5(G) is an enlarged vertical cross-sectional view of the refill container together with the refill container as the lid body is lifted. 1. It is an explanatory view explaining a procedure for replacing a refill container that can be extracted from the outer container of the double container shown in FIG. 1 with a new one. 7(A) is a partial vertical cross-sectional view showing a state before the contents are used up and the ring-shaped member is attached; FIG. (B) is a perspective view showing how the ring-shaped member is attached to the outer container. 8(A) is a perspective view showing how the ring-shaped member is attached to the lid, and FIG. It is a partial vertical cross-sectional view of a state that the lid is put on the outer container. 1. It is a partial vertical sectional view showing still another modified example of the double container shown in FIG. FIG. 10 is an assembly drawing showing how the ring-shaped member included in the modified example shown in FIG. 9 is assembled to another component;

Preferred embodiments of the double container according to the present invention are described in detail below with reference to the accompanying drawings. 1A and 1B are explanatory diagrams for explaining a preferred embodiment of a double container according to the present invention, FIG. 1A being an overall perspective view and FIG. 1B being a partial vertical sectional view.

The double container 1 according to the present embodiment mainly includes an outer container 2, a refill container 3 exchangeably stored inside the outer container 2, and a lid 4 attached so as to cover the refill container 3 from above. consists of

The outer container 2 is formed in a hollow cylindrical shape having an opening 7 at the upper end 5 a of the peripheral wall 5 by a cylindrical peripheral wall 5 and a bottom wall 6 closing the lower end of the peripheral wall 5 . In the outer container 2 , a storage space 8 is defined inside the peripheral wall portion 5 surrounded by the peripheral wall portion 5 . The storage space 8 is open upward through the opening 7 .

At the upper end 5a of the peripheral wall portion 5a of the outer container 2, a locking stepped portion 9 facing the upper side of the peripheral wall portion 5 and the inner side of the peripheral wall portion 5 is formed in such a manner that the peripheral wall portion 5 is recessed. The locking stepped portion 9 is formed in an annular shape continuously in the circumferential direction of the peripheral wall portion 5 . The locking stepped portion 9 may be formed at one location in the circumferential direction of the peripheral wall portion 5 or at a plurality of locations spaced apart from each other.

In the outer container 2, an annular first engaging portion 10a is formed along the inner peripheral surface of the peripheral wall portion 5 below the upper end 5a of the peripheral wall portion on which the locking step portion 9 is formed (see FIG. 3). (C), etc.). The first engaging portion 10a is formed in a groove shape formed by recessing the inner peripheral surface of the peripheral wall portion 5 . The first engaging portion 10a may be formed in the form of a ridge protruding from the inner peripheral surface of the peripheral wall portion 5 toward the storage space 8 side.

The refill container 3 contains various contents C such as liquid, cream, and powder. The refill container 3 is a container for replacement, which is taken out from the outer container 2 when the content C is used up, and a new one is attached to the outer container 2.例文帳に追加

The refill container 3 is inserted into the storage space 8 using the opening 7 and stored in the outer container 2 . The refill container 3 is composed of a storage portion 11 positioned in the storage space 8 and a cylindrical portion 12 protruding upward from the upper end 5 a of the peripheral wall portion of the outer container 2 through the opening 7 . An open end 13 for taking out the contents C is formed at the upper end of the tubular portion 12 .

The storage part 11 of the refill container 3 has a size that can be stored in the storage space 8 of the outer container 2, and has a horizontal cross-sectional shape that matches the horizontal cross-sectional shape of the storage space 8. It is formed in the shape of a bottom cylinder. On the other hand, the cylindrical portion 12 of the refill container 3 is formed in a cylindrical shape. A male threaded portion 14 is provided on the outer peripheral surface of the cylindrical tubular portion 12 .

At the boundary position between the tubular portion 12 and the storage portion 11 of the refill container 3, there is provided a shape that protrudes radially outward from the refill container 3 and engages the outer container 2 when the refill container 3 is stored in the outer container 2. A locking protrusion 15 that is locked onto the stop stepped portion 9 is formed.

When the locking stepped portion 9 is formed in a ring shape, the locking protrusion 15 is formed in a ring shape continuously in the circumferential direction of the refill container 3 accordingly. When the locking stepped portion 9 is formed at one or a plurality of positions on the peripheral wall portion 5 , the locking protrusion 15 is aligned with the position of the locking stepped portion 9 in the circumferential direction of the refill container 3 . It is formed at one location, or at a plurality of locations at intervals.

In the housing portion 11 of the refill container 3, when the locking protrusion 15 is locked onto the locking stepped portion 9, the annular first engaging portion 10a provided on the peripheral wall portion 5 of the outer container 2 and the A second engaging portion 10b is formed so as to be positioned at a facing position and releasably engaged with the first engaging portion 10a. The second engaging portion 10b is formed in an annular shape along the outer peripheral surface of the refill container 3 .

In the present embodiment, since the first engaging portion 10a is formed in the form of a groove, the second engaging portion 10b is formed in the form of a ridge protruding from the outer peripheral surface of the refill container 3 toward the peripheral wall portion 5 side. be. When the first engaging portion 10a is in the form of a ridge, the second engaging portion 10b is formed in a groove-like form by recessing the outer peripheral surface of the refill container 3. As shown in FIG.

The first engaging portion 10a and the second engaging portion 10b form an engaging portion 10 that removably engages the refill container 3 with the peripheral wall portion 5 by means of concave-convex engagement. The second engaging portion 10b engages with the first engaging portion 10a by inserting the refill container 3 into the storage space 8 through the opening 7, and when the refill container 3 is extracted from the storage space 8 and taken out, The engagement is released and separated from the first engaging portion 10a. The first and second engaging portions 10a and 10b may not be provided over the entire circumference of the peripheral wall portion 5 and the storage portion 11, but may be provided only partially in the circumferential direction thereof.

The outer container 2 and the refill container 3 are preferably made of elastic synthetic resin. The outer container 2 may be made of a hard material such as hard synthetic resin, glass, metal, etc. instead of elastic synthetic resin.

The horizontal cross-sectional shape of the peripheral wall portion 5 constituting the outer container 2 may be circular, elliptical, or polygonal on both the outer peripheral surface side and the inner peripheral surface side. They may have different cross-sectional shapes. That is, for example, the storage space 8 formed inside the prismatic outer container 2 may be cylindrical.

The lid body 4 is formed in the shape of a lidded cylindrical body that is open downward from the annular wall portion 16 and the top portion 17 . A female threaded portion 18 is formed on the inner peripheral surface of the annular wall portion 16 to be screwed into the male threaded portion 14 provided on the cylindrical portion 12 of the refill container 3 . The cover 4 is turned to tighten the female threaded portion 18 to the male threaded portion 14, whereby the lower end 16a of the annular wall portion 16 is lowered so as to approach the upper end 5a of the peripheral wall portion, and the tightening operation is completed. The opening end 13 of the refill container 3 protruding from the upper end 5a of the peripheral wall portion is covered to ensure airtightness, and is configured to be attached to the upper portion of the outer container 2. As shown in FIG.

A packing 19 is provided on the lower surface of the top portion 17 of the lid 4 to seal the open end 13 of the cylindrical portion 12 of the refill container 3 when the tightening operation is completed. The cover 4 may be made of any material such as synthetic resin as long as the female threaded portion 18 can be screwed onto the male threaded portion 14 . The horizontal cross-sectional shape of the annular wall portion 16 of the lid 4 may be any shape in accordance with the horizontal cross-sectional shape of the outer peripheral surface side of the peripheral wall portion 5 of the outer container 2 .

Next, the double container 1 according to this embodiment will be described along the procedure of removing the used refill container 3 from the outer container 2 and replacing it with a new refill container 3 .

As shown in FIG. 2, when replacing the refill container 3 with a new refill container 3, in order to remove the used refill container 3, the lid 4 is removed from the outer container 2, and the engagement portion 10 is engaged. A ring-shaped member 20 used for removing the is attached to the outer container 2 . The ring-shaped member 20 is mounted so as to be positioned between the upper end 5a of the peripheral wall portion of the outer container 2 and the lower end 16a of the annular wall portion of the lid 4 when the engaging portion 10 is disengaged.

The ring-shaped member 20 protrudes inward from the inner peripheral surface of the ring body 21 at a height position substantially in the middle of the ring body 21 in the up-down direction. and a push-up protrusion 22 disposed between the upper end 5a of the peripheral wall portion and the lower end 16a of the annular wall portion.

The ring body 21 has an inner diameter larger than the outer diameter of the outer container 2 and the lid 4 so as to surround the outer container 2 and the lid 4 from the outside. In this embodiment, the push-up protrusion 22 is formed in an annular shape over the entire circumferential direction of the ring main body 21 .

The ring-shaped member 20 is attached to the outer container 2 by simply placing the push-up protrusion 22 on the peripheral wall portion 5 of the outer container 2 so that the lower surface thereof is locked by the peripheral wall portion upper end 5a. It is designed to be FIG. 2 shows a case where the first engaging portion 10a is partially provided on the peripheral wall portion 5. As shown in FIG.

Further, the ring main body 21 of the ring-shaped member 20 can be engaged with the outer surface of the peripheral wall portion 5 in order to guide the attachment of the ring-shaped member 20 to the outer container 2 at the portion below the push-up protrusion 22. In addition to functioning as a guide piece, the portion above the push-up projection 22 is attached to the lid 4, in other words, to guide the lid 4 descending as described above. It functions as a guide piece that can be locked to the outer surface of the portion 16 .

Next, as shown in FIG. 3(C), the outer container 2 to which the ring-shaped member 20 is attached is covered with the lid 4, and the lid 4 is turned to tighten the female threaded portion 18 to the male threaded portion 14. Then, as shown in FIG. This figure shows a lightly tightened state.

Next, as shown in FIG. 3(D), further tightening is performed. By this tightening operation, the lower end 16a of the annular wall portion of the lid 4 is brought into contact with the push-up protrusion 22 of the ring-shaped member 20, resulting in the state shown in FIG.

Next, as shown in FIG. 5(E), the lid 4 is further rotated from the state shown in FIG. In the middle of the tightening operation before completion, the push-up projection 22 is pressed against the peripheral wall upper end 5a of the outer container 2 by the lower end 16a of the lower annular wall portion of the cover 4 that is descending.

As a result, as shown in FIG. 5F, by tightening the lid 4 described in FIG. and the peripheral wall portion 5 of the outer container 2 .

In a normal tightening operation of the lid 4, the female threaded portion 18 of the lid 4 is tightened along the male threaded portion 14 of the cylindrical portion 12. 16 and the peripheral wall 5, the operating force of the tightening operation to turn the lid 4 pushes up the male threaded portion 14 screwed into the female threaded portion 18 along the inclination of the thread. As a result, when the cover 4 is turned, the female threaded portion 18 cannot be tightened, and instead, the male threaded portion 14 begins to rotate along the female threaded portion 18.例文帳に追加

That is, the tightening operation force of the lid 4 becomes a force for pushing up the refill container 3 provided with the male threaded portion 14 through the screwing of the male threaded portion 14 and the female threaded portion 18 .

At this time, since a gap S is formed between the opening end 13 of the cylindrical portion 12 of the refill container 3 and the packing 19 of the lid 4 by the height of the push-up protrusion 22, this gap S is used. Then, the refill container 3 can be pushed up.

Since the outer container 2 is in close contact with the lid 4 via the ring-shaped member 20, only the refill container 3 is pushed up. By pushing up the refill container 3 with respect to the outer container 2, as shown in FIG. Engagement is disengaged.

The height dimension of the push-up protrusion 22 is sufficient if the height dimension is sufficient for the second engaging portion 10b to be separated from the first engaging portion 10a. It is preferable that the refill container 3 can be smoothly extracted from the outer container 2 by forming the height dimension to reach above the stop step portion 9 . In practice, if there is a clearance between the lower end 16a of the annular wall portion and the upper end 5a of the peripheral wall portion when the lid body 4 is completely tightened, the height is set to take account of the clearance.

When the engaging portion 10 is disengaged, the accommodating portion 11 of the refill container 3 can be pulled out from the peripheral wall portion 5 of the outer container 2, and the annular wall portion 13 of the lid 4 and the peripheral wall portion 5 of the outer container 2 push it up. Since the gripping state of the protrusion 22 is released and the lid body 4 is freed from the outer container 2, the lid body 4 is lifted as shown in FIG. The refill container 3 is lifted together via the male threaded portion 14 screwed into the female threaded portion 18 of the container.

After that, as shown in FIG. 6(H), the lid 4 is further lifted to completely pull out the refill container 3 from the outer container 2, and then, as shown in FIG. 6(I), the ring-shaped member is 20 is removed from the outer container 2; Next, as shown in FIG. 6(J), a new refill container 3 is inserted into the outer container 2 and stored therein. Finally, as shown in FIG. By tightening the portion 12 and covering the outer container 2, it can be used thereafter.

In the double container 1 according to this embodiment, the ring-shaped member 20 having the push-up projections 22 is attached to the peripheral wall of the outer container 2 when the lid 4 is tightened in daily use of the double container 1 . The refill container 3 can be easily pulled out of the outer container 2 by simply tightening the refill container 3 by simply attaching it between the upper end 5a of the lid 4 and the lower end 16a of the annular wall portion of the lid 4. The replacement can be easily performed by closing the body 4, which is easy for the user to understand and excellent usability can be ensured. Therefore, the refill container 3 to be taken out can be hygienically replaced without staining fingers.

In addition, the refill container 3 can be replaced with a simple and inexpensive structure by simply attaching a simple component such as the ring-shaped member 20 having the push-up protrusion 22 to the outer container 2 .

In the above embodiment, the ring-shaped member 20 in which the push-up protrusion 22 is formed on the ring main body 21 has been exemplified and explained. Needless to say, the push-up protrusion 22 may be configured as a ring-shaped component by omitting the ring main body 21 serving as a guide piece.

Since the ring-shaped member 20 is provided with the ring main body 21 as a guide piece, it is possible to guide the attachment of the outer container 2 and the lid body 4 to the ring-shaped member 20, and at the same time to secure the stability during attachment. , the replacement of the refill container 3 can be performed smoothly.

FIG. 7 shows a modification of the above embodiment. FIG. 7(A) is a partial vertical sectional view showing a state before the ring-shaped member 20 is attached after the content C is used up, and FIG. 7(B) is a state in which the ring-shaped member 20 is attached to the outer container 2. It is a perspective view.

In the above embodiment, the ring-shaped member 20 is prepared when the refill container 3 is replaced, and is simply placed on the peripheral wall portion 5 of the outer container 2. In this modified example, the ring-shaped member 20 is It is always provided in the container 2 and is provided at two different positions with respect to the outer container 2 for normal use and for replacement of the refill container 3 .

That is, in this modification, as shown in FIG. 7(B), the push-up protrusions 22 are formed at two locations facing each other in the diametrical direction of the ring body 21 . In addition, a notch portion 23 is formed in the upper end 5a of the peripheral wall portion of the outer container 2 at a position corresponding to the push-up protrusion 22 in order to lock the push-up protrusion 22 in the circumferential direction of the peripheral wall portion 5. be. In the illustrated example, the notch portion 23 is formed so as to connect the locking stepped portion 9 to the outer side of the peripheral wall portion 5 .

During normal use, the push-up protrusion 22 is inserted into the notch 23 so that the ring-shaped member 20 is placed on the locking stepped portion 9 with respect to the outer container 2 . On the other hand, as shown in FIG. 7A, when the refill container 3 is replaced after the content C has been used up, the ring-shaped member 20 has the push-up protrusion 22 pulled out from the notch 23 once, and then , is rotated by 90° as shown in FIG.

As a result, when the refill container 3 is replaced, the ring-shaped member 20 has the function of releasing the engagement of the engaging portion 10 by sandwiching the push-up projection 22 between the upper end 5a of the peripheral wall portion and the lower end 16a of the annular wall portion. On the other hand, during normal use, the push-up projection 22 is housed on the locking stepped portion 9 next to the upper end 5a of the peripheral wall portion and lower in height than the upper end 5a of the peripheral wall portion. The ring-shaped member 20 can be installed in the outer container 2 without interfering with the tightening operation of the body 4, that is, the ring-shaped member 20 can be attached to the outer container 2 at all times as an accessory. Even with such a modification, it is possible to achieve the same effects as the above-described embodiment.

FIG. 8 shows another modification of the above embodiment. In the above embodiment, the ring-shaped member 20 is attached to the outer container 2, but in this modified example, the lid 4 and the ring-shaped member 20 are provided with the same structure as in the above embodiment, and the lid 4, the ring-shaped member 20 is attached to the 4, and even in such a modified example, the same effects as those of the above-described embodiment can be obtained.

9 and 10 show still another modification of the above embodiment. In this modified example, the ring-shaped member 20 of the above-described embodiment is used as a bottom external component that is fitted around the bottom wall 6 of the outer container 2 . In this way, the ring-shaped member 20 can be set in the double container 1 at all times, and can be removed from the outer container 2 and placed on the outer container 2 at the time of replacement, improving convenience. can do. Even in such a modified example, it is needless to say that the same effects as those of the above-described embodiment can be obtained.

Reference Signs List 1 double container 2 outer container 3 refill container 4 lid 5 peripheral wall 5a upper end of peripheral wall 8 storage space 9 locking stepped portion 10 engaging portion 12 cylindrical portion 14 male screw portion 15 locking protrusion 16 annular wall portion 16a annular wall Lower end 18 Internal thread 20 Ring-shaped member 21 Ring main body

Claims (3)

an outer container in which a storage space opened upward is defined inside the cylindrical peripheral wall;
a refill container that is inserted into and stored in the storage space and has a cylindrical portion that protrudes upward from the upper end of the peripheral wall portion and a male thread portion provided on the outer peripheral surface of the cylindrical portion;
an engaging portion provided at a lower position than the upper end of the peripheral wall portion of the outer container, and engaging the refill container with the peripheral wall portion so that the refill container can be detachably engaged;
The female threaded portion has an annular wall portion provided on the inner peripheral surface, and the lower end of the annular wall portion is lowered so as to approach the upper end of the peripheral wall portion by a tightening operation of tightening the female threaded portion to the male threaded portion. a lid mounted on the top of the outer container surrounding the cylindrical portion of the refill container,
It is mounted so as to be positioned between the lower end of the annular wall portion and the upper end of the peripheral wall portion when the engaging portion is disengaged, and is sandwiched between the annular wall portion and the peripheral wall portion during the tightening operation. a ring-shaped member that uses the operating force of the tightening operation as a push-up force of the refill container through the female thread portion and the male thread portion ;
A double container , wherein the ring-shaped member is a bottom exterior part of the outer container. The ring-shaped member is formed with a guide piece that can be engaged with the outer surface of at least one of the peripheral wall portion of the outer container and the annular wall portion of the lid body in order to guide the mounting. The double container according to claim 1, characterized by: 2. The second aspect according to claim 1 , wherein the refill container is formed with a locking protrusion that is locked to a locking stepped portion formed on the upper end of the peripheral wall portion of the outer container. heavy container.

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