JP7556514B2 - Double container - Google Patents

Description

The present invention relates to a double container in which an inner container is housed in an outer container .

One example of a conventional double-layered container is that described in Patent Document 1. This document describes a double-layered container with an inner container inside a main container. In this container, the main container is provided with an outer lid, and the inner container is provided with an inner lid. Food waste and other items are stored inside this main container.

Japanese Patent Application Laid-Open No. 7-315504

However, the above-mentioned conventional technology has the following problems. The action of opening the lid is cumbersome. This is because two actions are required: first opening the outer lid and then opening the inner lid. Also, holding both the outer lid and the inner lid in their open state requires both hands. This makes it inconvenient to put items into the container or to remove items from the container. Then, closing the lid also requires two actions.

The present invention has been made to solve the problems of the prior art described above. That is, an object of the present invention is to provide a double container whose lid can be easily opened and closed.

The double container of the present invention is a container with a double structure having an inner container body having a bottom and side wall portions and an opening at an upper portion, an outer container body also having a bottom and side wall portions and an opening at an upper portion and housing the inner container body inside, and a lid that closes the openings of both the inner container body and the outer container body , wherein the inner container body is housed inside the outer container body, and the lid has a plate-shaped portion and an outer edge portion provided on the back surface of the plate-shaped portion in correspondence with the upper edge of the outer container body, and the basic configuration is that when the openings of the inner container body and the outer container body are closed by the lid and the outer edge portion is in contact with the upper edge of the outer container body, there is a gap around the entire circumference between the lid and the inner container body.

In the above double container, both the openings of the inner container body and the outer container body can be opened and closed simply by opening and closing the lid itself. This makes the opening and closing operations easy. In addition, when closing the lid, the opening of the inner container body is unlikely to come into contact with the lid. Therefore, in the closed lid state, the outer container body and the outer edge of the lid come into contact with each other. An inner lid part corresponding to the opening of the inner container body may be provided on the back side of the lid. In this case, even in the closed lid state, there is a gap around the entire circumference between the inner lid part and the inner container body. The concept of there being a gap between the lid and the inner container body includes a state in which some kind of flexible member is placed between the lid and the inner container body to close the gap. The same applies when the inner lid part is provided on the back side of the lid.

In the above double container, when the openings of the inner container body and the outer container body are closed with the lid , the lid and the upper end of the side wall of the inner container body face each other with a gap over the entire circumference . This reliably prevents contact between the lid and the upper end of the side wall of the inner container body in the closed lid state. Furthermore, a hanging wall is provided downward on the back surface of the lid corresponding to the opening of the inner container body, and when the openings of the inner container body and the outer container body are closed with the lid, the lower end of the hanging wall is below the upper end of the side wall of the inner container body, and the inner surface of the hanging wall and the outer surface of the side wall of the inner container body face each other with a gap over the entire circumference . With this configuration, the contents contained in the inner container body are less likely to pop out to the outside when the lid is closed. In addition, the hanging wall is less likely to come into contact with the side wall of the inner container body when the lid is closed.

In the double container of the first and second embodiments, in a closed state in which the inner container is placed on the bottom of the outer container body and the lid is placed on the upper edge of the side wall of the outer container body, the plate-like portion is in a position floating above the upper edge of the side wall of the inner container body, and there is an empty gap in the vertical direction over the entire periphery between the lid and the upper edge of the inner container body. In the first embodiment, the outer surface of the hanging wall and the inner surface of the side wall of the inner container body face each other with an empty gap over the entire periphery. In the second embodiment, the inner surface of the hanging wall and the outer surface of the side wall of the inner container body face each other with an empty gap over the entire periphery.

In the double container of the third and fourth aspects , the inner container body is detachably accommodated inside the outer container body, and when the inner container body is arranged and accommodated at the center inside the outer container body and the openings of the inner container body and the outer container body are closed with the lid, the distance between the outermost part of the side wall of the inner container body and the side wall of the outer container body is smaller than the distance between the hanging wall and the side wall of the inner container body at the facing part. In the third aspect, the inner surface of the hanging wall faces the outer surface of the side wall of the inner container body with a gap therebetween over the entire circumference. In the fourth aspect, the outer surface of the hanging wall faces the inner surface of the side wall of the inner container body with a gap therebetween over the entire circumference. With this configuration, even if the inner container body and the outer container body are slightly eccentrically arranged, the hanging wall is unlikely to come into contact with the side wall of the inner container body when the lid is closed.

In the double container of the above embodiment, the lid is further composed of an outer lid and an inner lid, the outer lid having an outer plate-like portion and an outer edge portion provided on its back surface, the inner lid having an inner plate-like portion and a fixing portion provided on its surface and fixed to the back surface of the outer plate-like portion, and it is preferable that the fixing portion is fixed to the back surface of the outer plate-like portion. Even with this configuration, opening and closing operations are easy. It can also be applied to existing outer containers.

In the double container having a double structure of an outer lid and an inner lid, the fixing part is provided at the highest part on the front surface side of the inner plate-like part, and the plate-like part is partially provided with a recess that protrudes toward the back surface and is recessed when viewed from above. The fixing part is located at a position radially outward from the recess in the inner plate-like part . By combining this inner container for double containers with an existing outer container, the same advantages as the above-mentioned double container can be obtained. In particular, the rigidity of the inner lid is improved, and it is prevented that the fixing part is difficult to contact the back surface of the outer lid due to distortion. In addition, the fixing part reliably fixes the inner lid to the outer lid.

In the above-mentioned embodiment of the inner container for double-layered container, it is further preferable that a mark shape is formed on the boundary between the fixing part area and other areas on the surface side of the plate-shaped part. The mark shape makes it easy to place a member for fixing, such as double-sided adhesive tape, on the fixing part. The aforementioned recess is formed in a ring shape, and it is preferable that the plate-shaped part in the part inside is formed lower in the vertical direction than the plate-shaped part in the part outside. If it is configured like this, the fixing part will be the highest part on the surface side of the inner lid even if the inner lid is slightly distorted.

This specification also discloses an inner lid for a double container that is made up of an inner container and an outer container, and that closes the opening of the inner container, and that has a plate-shaped portion and a fixing portion provided at the highest portion on the front side of the plate-shaped portion. By combining this inner lid for a double container with an existing outer container and inner container body, the same advantages as the double container described above can be obtained.

This configuration provides a double container with an easy-to-open lid and an inner container for the double container.

FIG. 2 is a perspective view of a double container according to an embodiment (open lid state). FIG. 2 is a cross-sectional view of a double container according to an embodiment. FIG. 2 is a perspective view of a double container according to an embodiment (with the lids closed). FIG. 2 is a perspective view from above of an inner container which is a component of a double container. FIG. 2 is a perspective view from below of an inner container which is a component of a double container. FIG. 2 is a perspective view of an outer container which is a component of the double container. FIG. 4 is a partial cross-sectional view showing the vicinity of the lid of the double container in a closed state. 4 is a cross-sectional view showing the structure of an adhesive portion in an interior cover. FIG. FIG. 11 is a partial cross-sectional view of the vicinity of a lid according to a modified example. FIG. 11 is a cross-sectional view showing an example of the configuration of a full lid that is an integrated part. FIG. 11 is a cross-sectional view (part 1) of a double container when a full lid according to a modified example is used. FIG. 2 is a cross-sectional view (part 2) of a double container when a full lid according to a modified example is used. FIG. 11 is a cross-sectional view (part 1) of a configuration in which a flexible member is arranged on an interior lid. FIG. 2 is a cross-sectional view (part 2) of a configuration in which a flexible member is arranged on the inner lid. FIG. 3 is a cross-sectional view (part 3) of a configuration in which a flexible member is arranged on the interior lid.

The following describes in detail an embodiment of the present invention with reference to the attached drawings. In this embodiment, the present invention is applied to the double container shown in Figs. 1 to 3. As shown in Figs. 1 and 2, the double container according to this embodiment has an inner container body 31, an outer container body 30, an inner lid 21, and an outer lid 20.

The inner container body 31 is housed inside the outer container body 30. The inner container body 31 and the outer container body 30 are collectively referred to as the entire body 3. The inner lid 21 is fixed to the back surface of the outer lid 20. The inner lid 21 and the outer lid 20 are collectively referred to as the entire lid 2. The entire body 3 and the entire lid 2 are collectively referred to as the entire container 1. The entire lid 2 in Figure 1 is shown as viewed from diagonally below. Figure 3 shows the appearance in the closed state. In the closed state, the openings of both the inner container body 31 and the outer container body 30 are closed by the entire lid 2.

Figures 4 and 5 show perspective views of the inner container body 31 and the inner lid 21. The inner container body 31 and the inner lid 21 are collectively referred to as the inner container 10. The inner lid 21 in Figures 4 and 5 is in a standalone state, not fixed to the outer lid 20. In Figure 4, the inner container body 31 and the inner lid 21 are shown looking down from diagonally above. In Figure 5, the inner container body 31 and the inner lid 21 are shown looking up from diagonally below. In Figure 4, the upper surface of the inner lid 21, which is not visible in Figure 1, is visible.

Figure 6 shows a perspective view of the outer container body 30 and the outer lid 20. The outer container body 30 and the outer lid 20 are collectively referred to as the outer container 11. In Figure 6, the outer container body 30 is shown as seen from diagonally above, and the outer lid 20 is shown as seen from diagonally below.

Both the inner container body 31 and the outer container body 30 have a bottom and side walls, and an opening at the top. The inner container body 31 has a bottom 39 (see FIG. 5) and a side wall 37 (see FIG. 4 and FIG. 5). A handle ring 35 and a reinforcing rib 51 (see FIG. 2 and FIG. 4) are provided on the outer surface of the side wall 37 of the inner container body 31, located slightly below the upper end. The handle ring 35 serves as a handle when the inner container body 31 is held by hand and serves to increase the rigidity of the side wall 37. The reinforcing rib 51 is provided to increase the rigidity of the handle ring 35 and to prevent the inner container bodies 31 from becoming stuck when they are stacked on top of each other. The outer container body 30 has a bottom 36 (see FIG. 2) and a side wall 34 (see FIG. 6). A reinforcing rib 38 is provided on the outer surface of the side wall 34 of the outer container body 30.

The inner lid 21 will now be described. The inner lid 21, in its standalone state before being fixed to the outer lid 20, is an approximately disk-shaped member overall. As shown in FIG. 4, the inner lid 21 has a plate-shaped portion 23 and a hanging wall 25 at its edge. The plate-shaped portion 23 is a plate-shaped portion (inner plate-shaped portion) that is entirely circular. The hanging wall 25 is a wall-shaped portion that faces downward relative to the plate-shaped portion 23. More specifically, an outward step 42 is formed at the connection between the plate-shaped portion 23 and the hanging wall 25.

The plate-shaped portion 23 further includes an adhesive portion 27 and an annular recess 29. The adhesive portion 27 is provided on the front surface of the plate-shaped portion 23 and is a fixing portion for attaching and fixing the interior cover 21 to the back surface of the exterior cover 20. The annular recess 29 is a portion of the plate-shaped portion 23 that protrudes toward the back surface. As shown in FIG. 5, the annular recess 29 is convex when the interior cover 21 is viewed from the back surface side. The annular recess 29 is formed in a concentric shape on the inner periphery side of the adhesive portion 27. A plate-shaped portion 41 is also present inside the annular recess 29. The annular recess 29 is formed to increase the rigidity of the interior cover 21. The adhesive portion 27 is disposed on the outer periphery side of the annular recess 29.

The exterior lid 20 will now be described. The exterior lid 20 in its standalone state before the inner lid 21 is fixed is an approximately disk-shaped member overall. As shown in FIG. 6, the exterior lid 20 has a plate-shaped portion 22 and an outer edge 24 of its periphery. The plate-shaped portion 22 is a plate-shaped portion (outer plate-shaped portion) that is entirely circular. An annular portion 26 is provided on the back side immediately inside the outer edge 24. The annular portion 26 is an annular portion that is recessed more than the plate-shaped portion 22 when viewed from below. The outer edge 24 and the annular portion 26 correspond to the outer edge portion in this invention.

As described above, the complete lid 2 is formed by fixing the inner lid 21 to the back surface of the outer lid 20 to form a single unit. In the complete lid 2, the adhesive portion 27 on the surface of the plate-shaped portion 23 of the inner lid 21 is attached to the back surface of the plate-shaped portion 22 of the outer lid 20. The adhesive portion 27 is a portion that has adhesive properties. The adhesive portion 27 is provided at the highest position in the vertical direction on the inner lid 21. Once the outer lid 20 and the inner lid 21 have been integrated to form the complete lid 2, there is no particular need to separate the outer lid 20 and the inner lid 21.

In the full lid 2, the plate-like portion 22 of the outer lid 20 and the plate-like portion 23 of the inner lid 21 overlap. The annular portion 26 of the outer lid 20 is visible from below even in the full lid 2 state. The hanging wall 25 of the inner lid 21 forms a downward wall even in the full lid 2 state. In the full container 1, the inner container body 31 is placed on the bottom 36 of the outer container body 30. This forms a full body 3 with a double structure consisting of the inner container body 31 and the outer container body 30. However, the inner container body 31 is detachable from the outer container body 30. The space for storing contents in the full body 3 as a container is the internal space of the inner container body 31.

In the case of the full container 1 in the closed lid state shown in Figure 3, the opening is closed by the full lid 2 as shown in Figure 2. Details will be explained with reference to Figure 7. As shown in Figure 7, in the case of the full container 1 in the closed lid state, the annular portion 26 of the exterior lid 20 rests on the upper edge 32 of the side wall portion 34 of the exterior container body 30. In other words, the annular portion 26 is provided in correspondence with the upper edge 32, and is in contact with the upper edge 32 in the closed lid state. Therefore, the opening of the exterior container body 30 is closed by the exterior lid 20.

However, even in this state, the inner lid 21 and the inner container body 31 are not in contact. The plate-like portion 23 of the inner lid 21 is in a position that is floating above the upper edge 33 of the side wall portion 37 of the inner container body 31. This is because the entire lid 2 is supported by the upper edge 32 of the outer container body 30. In other words, there is a gap in the vertical direction around the entire circumference between the inner lid 21 and the upper edge 33 of the inner container body 31. For this reason, the inner lid 21 and the upper edge 33 do not come into contact with each other before the annular portion 26 and the upper edge 32 come into contact with each other. As a result, no gap visible from the outside is left between the annular portion 26 and the upper edge 32.

The inner container body 31 and the inner lid 21 are not in contact with each other, but the inner lid 21 is always present above the upper edge 33 of the inner container body 31 and the entire area of the opening on its inner side. In this disclosed technology, this state is referred to as the opening of the inner container body 31 being closed by the inner lid 21.

The hanging wall 25 of the inner lid 21 is located at a position slightly radially outward from the upper edge 33 of the side wall portion 37 of the inner container body 31. Therefore, there is a radial gap over the entire circumference between the inner surface of the hanging wall 25 and the side wall portion 37 of the inner container body 31. Furthermore, the lower end 28 of the hanging wall 25 of the inner lid 21 is located vertically lower than the upper edge 33 of the inner container body 31. Therefore, the contents of the inner container body 31 are unlikely to fly out of the inner container body 31.

In the double container (full container 1) of this embodiment configured as described above, the operation of opening and closing the full lid 2 is simple. This is because, from the closed lid state of FIG. 3, simply by removing the outer lid 20, not only the outer lid 20 but also the inner lid 21 can be removed. This is because the outer lid 20 and the inner lid 21 are integrated to form the full lid 2. The operation of closing the full lid 2 from the open lid state of FIG. 1 is similarly simple. Therefore, in the double container of this embodiment, in the closed lid state, a series of operations can be easily performed, such as opening the full lid 2 once, placing the object to be contained in the inner container body 31, and then closing the full lid 2 again. At that time, it is also unlikely that the hanging wall 25 of the full lid 2 will come into contact with the inner container body 31. This is due to the radial spacing described above.

It is also easy to empty the inner container body 31 when it is nearly full of the contents. In that case, the inner container body 31 is removed from the outer container body 30, the contents are transferred to another container such as a large bag, and the inner container body 31 is returned to the inside of the outer container body 30. Alternatively, the inner container body 31 and the outer container body 30 can be held by hand, and the entire body 3 can be tilted to transfer the contents to another container. This is because, as expected, it is necessary to open the entire lid 2 once when it is closed, and then close it again.

The spacing between the inner lid 21 and the inner container body 31 will be further described. First, the spacing in the vertical direction will be described. In FIG. 7, spacing A and spacing B are shown as spacings in the vertical direction. Spacing A is the vertical spacing between the upper edge 33 of the inner container body 31 and the inner shoulder of the step 42. For example, spacing A may be about 5 mm. By having spacing A, even if the inner lid 21 and the inner container body 31 are positioned slightly eccentrically, the upper edge 33 will not come into contact with the inner shoulder of the step 42. Spacing B is the vertical spacing between the upper edge 33 of the inner container body 31 and the lower surface of the plate-shaped portion 23. Spacing B is the vertical spacing between the inner lid 21 and the upper edge 33 described above. Spacing B may be about 10 mm, for example.

Next, the horizontal (radial) spacing will be explained. In FIG. 7, spacing C is shown as the horizontal spacing between the inner lid 21 and the inner container body 31. Spacing C is the horizontal spacing between the inner surface of the hanging wall 25 and the outer surface of the side wall portion 37 of the inner container body 31.

In FIG. 7, distance D is shown as another horizontal distance. Distance D is not the distance between the inner container body 31 and the inner lid 21, but the distance between the inner container body 31 and the outer container body 30. More specifically, distance D is the horizontal distance between the outermost portion of the side wall portion 37 of the inner container body 31 and the inner surface of the side wall portion 34 of the outer container body 30. The outermost portion of the side wall portion 37 of the inner container body 31 is the outer surface of the handle ring 35 when the handle ring 35 is provided on the side wall portion 37 facing outward as in this embodiment. In this embodiment, distance D is between the outer surface of the handle ring 35 and the inner surface of the side wall portion 34 of the outer container body 30.

In this embodiment, the distance C is larger than the distance D. Therefore, even if the inner container body 31 is positioned slightly eccentrically relative to the outer container body 30, it is unlikely that the upper edge 33 of the inner container body 31 will come into contact with the hanging wall 25 of the inner lid 21. For example, it is possible to set the distance D to about 1.5 mm and the distance C to about 4 mm.

The double container of this embodiment can also be realized by combining a new inner container 10 with an existing outer container 11. It is also possible to combine a new inner lid 21 with an existing outer container 11 and an existing inner container body 31. In these cases, the adhesive portion 27 of the inner lid 21 can be realized by using double-sided adhesive tape.

Figure 8 shows a cross section of the adhesive portion 27 realized by the double-sided adhesive tape 44. In the example of Figure 8, the double-sided adhesive tape 44 is attached to the adhesive portion 27 of the interior lid 21. Release paper 45 remains on the upper side of the double-sided adhesive tape 44. In this state, the release paper 45 can be removed and the interior lid 21 can be attached to the back surface of the exterior lid 20. Alternatively, an interior lid 21 without the double-sided adhesive tape 44 and a double-sided adhesive tape 44 with release paper 45 on both sides may be prepared. In this case, the release paper 45 on one side of the double-sided adhesive tape 44 is first peeled off and attached to the adhesive portion 27.

In the example of Figure 8, a groove 43 is formed at the boundary between the adhesive portion 27 area and the other area in the plate-shaped portion 23 of the inner lid 21. The groove 43 is actually formed in a rectangular shape as shown by "27" in Figure 4. It serves as a marker shape for the attachment location when attaching the double-sided adhesive tape 44 to the inner lid 21 as described above. Figure 7 shown above is a cross-sectional view of the inner lid 21 attached to the back surface of the outer lid 20 with the double-sided adhesive tape 44. In this example, a relatively thin double-sided adhesive tape 44 is used for the adhesive portion 27, so it is barely visible in Figure 7.

In the example of FIG. 8, the area inside and outside the groove 43 is flat without any unevenness. Therefore, the adhesive portion 27 is at the highest position in the vertical direction of the inner lid 21. This is because, as shown in FIG. 4, the inner lid 21 does not have any shape formed upward from the surface of the plate-shaped portion 23. In addition, the annular recess 29 improves the rigidity of the inner lid 21 and makes it less likely to be distorted, so that the adhesive portion 27 is less likely to move away from the highest position. This makes it easy to integrate the inner lid 21 and the outer lid 20 into a full lid 2. All that is required is to attach the double-sided adhesive tape 44 to the adhesive portion 27, remove the release paper 45, and overlap the inner lid 21 with the outer lid 20, and lightly press them together in the vertical direction. This fixes the inner lid 21 to the back surface of the outer lid 20.

As shown in FIG. 9, it is better to differentiate the height of the plate-like portion of the inner lid 21 between the inside and outside of the annular recess 29. In the example of FIG. 9, the height of the plate-like portion 41 inside the outermost annular recess 29 is lower than the height of the plate-like portion 23 outside the outermost annular recess 29. The adhesive portion 27 is, of course, provided on the outer plate-like portion 23. In this way, even if the inner lid 21 is distorted to a certain extent, the adhesive portion 27 will remain at the highest position in the vertical direction on the inner lid 21. This makes it easier to integrate the inner lid 21 and the outer lid 20.

The adhesive portion 27 is located radially outward from the outermost annular recess 29 in the plate-shaped portion 23. Therefore, as shown in FIG. 4, the adhesive portion 27 is located near the edge of the inner lid 21. This has the advantage that the inner lid 21 and the outer lid 20 are less likely to peel off after they are integrated together. This is because the inner lid 21 and the outer lid 20 are fixed to each other almost over the entire surface of the inner lid 21.

In the plate-like portion 23, the area corresponding to the adhesive portion 27 may be slightly raised from the other portions. Conversely, it may be recessed from the other portions as long as it is less than the thickness of the double-sided adhesive tape 44. In cases like these where there is a step at the boundary between the area corresponding to the adhesive portion 27 and the other portions, the groove 43 may not be required. This is because the step serves as a marker shape for the application position of the double-sided adhesive tape 44. Also, the marker shape may not be required. The means for fastening the inner lid 21 and the outer lid 20 is not limited to double-sided adhesive tape, and may be an adhesive or an engagement structure.

The full lid 2 has been described above as being an integrated unit of the inner lid 21 and the outer lid 20, but this is not necessarily the case. It may be a full lid that is manufactured as a single unit from the beginning. Figure 10 shows a full lid 4 that is a single unit. In the full lid 4 in Figure 10, an annular portion 26 and a hanging wall 48 are provided on a single plate-shaped portion 46.

As shown in FIG. 11, the full lid 5 may have a shape that does not have a hanging wall. The full lid 5 in FIG. 11 is formed by bonding an outer lid 20 and an inner lid 47 that is a simple flat plate. In the closed state shown in FIG. 11, the upper edge 33 of the inner container body 31 and the back surface of the plate-like portion 22 of the outer lid 20 face each other with a gap in the vertical direction. This closes both the outer container body 30 and the inner container body 31. In FIG. 11, the inner lid 47 may be made a little larger in diameter so that the upper edge 33 of the inner container body 31 and the inner lid 47 face each other with a gap in the vertical direction when in the closed state.

As described above in detail, according to this embodiment, in the full container 1, which is a double container having an inner container 10 and an outer container 11, the full lid 2 is structured so that the inner container body 31 and the outer container body 30 can be opened and closed together in a single action. In the closed state, the outer container body 30 and the outer lid 20 are in contact, while the inner container body 31 and the inner lid 21 are not in contact. This realizes a double container and an inner container for use therewith that allow easy opening and closing of the lid.

The present embodiment is merely an example and does not limit the present invention in any way. Therefore, the present invention can be modified and improved in various ways without departing from the scope of the present invention. For example, in the above description of the embodiment having the hanging wall 25, the hanging wall 25 faces the outside of the side wall 37 of the inner container body 31 in the closed state. However, the present invention is not limited to this, and as shown in FIG. 12, the inner lid 49 may have a structure in which the hanging wall 50 faces the inside of the side wall 37 of the inner container body 31 in the closed state. Of course, the outer lid 20 and the inner lid 47 or the inner lid 49 shown in FIG. 11 and FIG. 12 may be a complete lid manufactured as a single unit from the beginning.

In the above description, it is assumed that there is an empty gap between the inner container body 31 and the inner lid 21 even in the closed state. However, this is not limited to the above, and a flexible member may be placed on the inner lid 21 to close this gap. Figures 13 to 15 show examples of this case. In the example of Figure 13, a flexible member 52 is placed on the inner lid 21. The flexible member 52 is placed on the back surface of the plate-shaped portion 23, immediately inside the hanging wall 25. As a result, the vertical gap between the upper edge 33 of the inner container body 31 and the plate-shaped portion 23 is closed by the flexible member 52. In the example of Figure 14, a flexible member 53 is placed on the inner lid 21. The flexible member 53 is placed inside near the lower end of the hanging wall 25. As a result, the horizontal gap between the outer surface of the inner container body 31 and the inner surface of the hanging wall 25 is closed by the flexible member 53. The flexible member 54 in Figure 15 closes both the vertical gap and the horizontal gap.

Even in these cases, the inner container body 31 and the inner lid 21 are not in direct contact. Therefore, even if the outer container body 30 and the outer lid 20 are in contact with each other in the closed state, there is still a gap between the inner container body 31 and the inner lid 21. Foamed resin or a tubular resin material can be used for the flexible members 52-54. Flexible members can be arranged even in the case of a one-piece full lid 4 or a full lid 5 that does not have a hanging wall. Flexible members can be arranged even in a configuration in which the hanging wall 50 is located inside the side wall portion 37 of the inner container body 31.

In the above embodiment, the annular portion 26 of the outer lid 20 is provided on the back surface of the plate-shaped portion 22, corresponding to the upper edge 32 of the outer container body 30, as a portion recessed from the plate-shaped portion 22 when viewed from below. However, this is not limited to the above, and the recessed annular portion 26 may be omitted, and the flat portion on the back surface of the plate-shaped portion 22 may be used as the outer edge of the present invention. When the flat portion is used as the outer edge in this manner, the outer edge 24 may be provided as a downward hanging wall so as to face the outer surface of the side wall portion 34 of the outer container body 30. Alternatively, a hanging wall may be provided inside the outer edge so as to face the inner surface of the side wall portion 34.

In the above description, the inner container 10 and the outer container 11 are circular when viewed from above. However, this is not limited to this, and any shape, such as an ellipse, an oval, or a polygon, may be used. The handle ring 35 is not essential. Even when a handle-shaped portion is provided, it does not have to be circular, and it may be provided discretely in the circumferential direction. The annular recess 29 in the inner lid 21 is not essential. Even when an uneven shape is provided to reinforce the inner lid 21, it does not have to be concentric. A handle may be provided on the surface of the outer lid 20. Also, in the above description, it is assumed that the full lid 2 (outer lid 20) is simply placed on the upper edge 32 of the outer container body 30 in the closed state. However, this is not limited to this, and the full lid 2 (outer lid 20) may be fixed to the outer container body 30 by some kind of fixing device (such as a tightening band). The full lid 2 (outer lid 20) may be provided with a locking claw or the like to engage with the outer container body 30.

1 Whole container 30 Outer container body 2 Whole lid 31 Inner container body 3 Whole body 32 Upper edge 4 Whole lid (integral part) 33 Upper edge 5 Whole lid (without hanging wall) 34 Side wall 10 Inner container 35 Handle ring 11 Outer container 36 Bottom 20 Outer lid 37 Side wall 21 Inner lid 39 Bottom 22 Plate-shaped part 41 Plate-shaped part 23 Plate-shaped part 44 Double-sided adhesive tape 24 Outer edge 46 Plate-shaped part 25 Hanging wall 47 Inner lid 26 Annular part 48 Hanging wall 27 Adhesive part 49 Inner lid 28 Lower end 50 Hanging wall 29 Annular recess

Claims (5)

A double container having an inner container body having a bottom and side walls and an opening at an upper portion, an outer container body having a bottom and side walls and an opening at an upper portion, and accommodating the inner container body therein, and a lid for closing both the openings of the inner container body and the outer container body,
The inner container body is placed on the bottom of the outer container body,
The lid is composed of an exterior lid and an interior lid ,
The exterior lid is
An outer plate portion;
and an outer edge portion provided on the back surface of the outer plate portion in correspondence with the upper edge of the outer container body,
The inner lid is
An inner plate-like portion;
A fixing portion provided on a surface of the inner plate-shaped portion and fixed to a back surface of the outer plate-shaped portion;
A hanging wall is provided downward on the back surface of the inner plate-like portion in correspondence with the opening of the inner container body,
The fixing portion is fixed to a rear surface of the outer plate-like portion,
the lid closes the openings of the inner container body and the outer container body, and the outer edge is brought into contact with the upper edge of the outer container body, and in a closed state in which the lid is placed on the upper edge of the side wall of the outer container body,
the inner plate-like portion and the outer plate-like portion are located above the upper edge of the side wall portion of the inner container body, and there is an empty space in the up-down direction around the entire periphery between the lid and the upper edge of the inner container body,
The lower end of the hanging wall is located below the upper end of the side wall portion of the inner container body,
The inner surface of the hanging wall and the outer surface of the side wall of the inner container body face each other with a gap therebetween over the entire periphery ,
The inner plate-shaped portion is partially provided with a recess that protrudes toward the back surface and is recessed when viewed from above,
The fixing portion is disposed radially outward of the recess in the inner plate portion . A double container having an inner container body having a bottom and side walls and an opening at an upper portion, an outer container body having a bottom and side walls and an opening at an upper portion, and accommodating the inner container body therein, and a lid for closing both the openings of the inner container body and the outer container body,
The inner container body is placed on the bottom of the outer container body,
The lid is composed of an exterior lid and an interior lid ,
The exterior lid is
An outer plate portion;
and an outer edge portion provided on the back surface of the outer plate portion in correspondence with the upper edge of the outer container body,
The inner lid is
An inner plate-like portion;
A fixing portion provided on a surface of the inner plate-shaped portion and fixed to a back surface of the outer plate-shaped portion;
A hanging wall is provided downward on the back surface of the inner plate-like portion in correspondence with the opening of the inner container body,
The fixing portion is fixed to a rear surface of the outer plate-like portion,
the lid closes the openings of the inner container body and the outer container body, and the outer edge is brought into contact with the upper edge of the outer container body, and in a closed state in which the lid is placed on the upper edge of the side wall of the outer container body,
the inner plate-like portion and the outer plate-like portion are located above the upper edge of the side wall portion of the inner container body, and there is an empty space in the up-down direction around the entire periphery between the lid and the upper edge of the inner container body,
The lower end of the hanging wall is located below the upper end of the side wall portion of the inner container body,
The outer surface of the hanging wall and the inner surface of the side wall of the inner container body face each other with a gap therebetween over the entire periphery ,
The inner plate-shaped portion is partially provided with a recess that protrudes toward the back surface and is recessed when viewed from above,
The fixing portion is disposed radially outward of the recess in the inner plate portion . The double container according to claim 1 or 2 ,
The fixing portion is provided at the highest portion on the surface side of the inner plate-shaped portion . A double container according to any one of claims 1 to 3 ,
The interior cover has an inner plate-like portion on the inner side of the recess,
a height of the inner plate-like portion on the inner side of the recess is lower than a height of the inner plate-like portion on the outer side of the recess;
The fixing portion is provided on the surface side of the inner plate-shaped portion outside the recess . A double container according to any one of claims 1 to 4 ,
A double container having a marker shape formed at the boundary between the area of the fixing portion and the other area on the surface side of the inner plate-shaped portion .

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