JP2019214406A - Storage container - Google Patents

Abstract

To provide a storage container which has dual structure having an external container and an internal container, and in which a removal of a lid of the internal container is easy.SOLUTION: A storage container of this invention has an external container 2, an internal container 3 installed to the inside thereof, and a lid 4 which closes an opening portion of the internal container 3. All of these are made of resin material. And a first closing face 41 which directs for the lid 4 around the opening portion of the internal container 3 is formed, and a second closing face 45 which comes in contact with the first closing face 41 in a closing state is formed near an edge of the lid 4, and a first concave portion 42 and a second concave portion 43 which respectively become continuous in the closing state are formed in outer edge sides of the first closing face 41 and the second closing face 45.SELECTED DRAWING: Figure 9

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage container for storing storage items, which has a double structure of an outer container that maintains the outer shape and an inner container that is attached to the inside and is insulated from the outside.

  2. Description of the Related Art Conventionally, there has been known a storage container in which an inner container having a certain degree of flexibility and a high heat insulating property is mounted inside an outer container having a relatively high rigidity so as to have a cooling or heat retaining function. The one described in Patent Document 1 is also an example. In such a double-structured storage container, the inner container is usually detachable from the outer container. The same is true of the thermal insulation container of Patent Document 1.

  In the thermal insulation container of the document, the one indicated by “10” in FIG. 1 is an exterior body (exterior vessel), and the one indicated by “20” is an interior body (interior vessel). “30” is a lid of the interior body. Looking at the “exterior body 10”, a “through hole 12” for a handle is provided in a side wall portion on both short sides thereof. In accordance with this, a “convex portion 22” is provided outward on the side wall portion of the “interior body 20”. When FIG. 3 of the document is viewed, a cross-sectional view of a state where the “inner body 20” is mounted inside the “exterior body 10” is depicted. In the state of this cross-sectional view, the “convex portion 22” has entered the “through hole 12”. This prevents the "interior body 20" from coming off the "exterior body 10" by itself.

JP-A-10-17031

  However, the conventional storage container described above has the following problems. That is, it is actually difficult to remove the “lid 30” from the “interior body 20”. In the storage container (insulated container) of the document, a "cut 33" is provided in a part of the "lid 30". This is the shape for removing the “lid 30”. However, as is clear from FIG. 3 of the document, the space of the “cut 33” is only a very narrow gap between the “lid 30” and the inner surface of the “exterior body 10”. This does not change even if the "cut 33" is provided wide along the edge of the "lid 30".

  The present invention has been made in order to solve the problems of the above-described conventional technology. That is, an object of the present invention is to provide a storage container having a double structure of an outer container and an inner container, in which a lid of the inner container can be easily removed.

  A storage container according to one embodiment of the present invention includes an outer container, both of which are made of a resin material, an inner container mounted therein, and a lid for closing an opening of the inner container. A first closed surface facing the lid is formed around the opening in the inner container, and a second closed surface that is in contact with the first closed surface in a closed state is formed on an edge of the lid, and the first closed surface is formed. A first concave portion and a second concave portion which are continuous in a closed state are formed on the outer edge sides of the closing surface and the second closing surface, respectively.

  In the storage container according to the above aspect, when the opening of the inner container is closed by the lid, heat insulation is achieved by contact between the first closed surface of the inner container and the second closed surface of the lid. Here, the first concave portion and the second concave portion of the first closed surface and the second closed surface are continuous in the closed state, and have a certain wide space. Therefore, by inserting a fingertip here, the lid can be easily raised. That is, it is easy to remove the lid from the closed state.

  In the storage container of the above aspect, it is preferable that the second concave portion of the lid is further formed with an inclined outer surface that is closer to the outer container as the distance from the first closed surface increases. Thereby, a gap between the lid and the outer container is secured, and a space for inserting a fingertip for removing the lid is secured. Further, by raising the fingertip inserted into the first concave portion and the second concave portion, the lid can be naturally lifted depending on the inclination direction of the inclined outer surface.

  In the storage container according to any one of the above aspects, it is preferable that the first closed surface and the second closed surface are in contact with each other even in a position on the back side of the first concave portion and the second concave portion in the closed state. . With this configuration, the first recess and the second recess do not significantly impair the heat insulation of the closed state between the interior container and the lid.

  In the storage container according to any one of the above aspects, a projection is formed on the outer surface of the side wall of the inner container so as to form a gap with the inner surface of the side wall of the outer container when mounted on the outer container. Preferably, the first concave portion is formed on a side wall portion of the interior container where the convex portion is provided. With this configuration, a certain gap is formed between the lid and the outer container in the closed state. For this reason, when removing the lid, the hand can be easily inserted into the space of the first concave portion or the second concave portion through the gap.

  In the storage container of any one of the above aspects, it is preferable that the lid is further provided with a step-shaped portion which is located above the space of the first concave portion in the closed state. In this case, the step-shaped portion is put on the fingertip inserted for removing the lid. This makes it easier to remove the lid.

  According to this configuration, there is provided a storage container in which the lid of the internal container is easily removed while having a double structure of the external container and the internal container.

It is a perspective view showing the storage container of this form separated for every part. It is a perspective view which shows the cooling agent attached inside the storage container of this form. FIG. 4 is a perspective view showing the storage container of the present embodiment in a state where the storage container is turned upside down and separated for each part. It is a perspective view showing the state where an interior container was attached to an exterior container. FIG. 5 is a perspective view showing a state where a lid is set with respect to the state of FIG. 4. It is a perspective view which shows the principal part of an interior container. It is a perspective view which shows the principal part of a lid. It is a perspective view which shows the back surface side of the principal part of a lid. It is sectional drawing which shows the state which attached the inner container and the lid to the outer container. It is sectional drawing which shows the modification about the shape of a 1st recessed part. It is sectional drawing which shows the modification about the shape of a 1st recessed part and a 2nd recessed part. It is a perspective view which shows the storage container of this form in a stacked state. It is sectional drawing which shows the storage container of this form in the stacked state.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this embodiment, the present invention is embodied as the storage container 1 shown in FIG. The storage container 1 shown in FIG. 1 includes an outer container 2, an inner container 3, and a lid 4. The outer container 2 is a part which forms the outer shape of the storage container 1 and has a necessary strength. The interior container 3 is a part for actually storing the stored items in the storage container 1. The main function of the interior container 3 is heat insulation and impact relaxation. The lid 4 is a part that closes the opening of the interior container 3.

  The materials of the outer container 2, the inner container 3, and the lid 4 are all synthetic resins. However, the type of material resin differs between the outer container 2 and the inner container 3. Comparing the resin material of the outer container 2 and the resin material of the inner container 3, the latter has higher flexibility and higher heat insulation. Although there is no particular limitation on the type of resin itself, the above-described method is achieved by forming the outer container 2 with a non-foamed resin (for example, polypropylene) and the inner container 3 with a foamed resin (for example, foamed polypropylene, polyethylene, or styrene foam). Can be achieved. The material of the lid 4 may be the same as that of the interior container 3.

  Each of the outer container 2 and the inner container 3 has a box-like shape with an open top as an overall schematic shape. That is, the outer container 2 includes a rectangular bottom portion 21, a long side wall portion 23 provided above the two long sides thereof, and a short side wall portion provided above the both short sides thereof. 24. Many holes 25 are formed in the bottom part 21. A hole 26 is formed in each long side wall 23. A handle 27 is formed on each short side wall 24. The handle 27 is located at the center of the short side wall portion 24 in the width direction (the longitudinal direction of the short side wall portion 24 when viewed from above).

  The interior container 3 also has a rectangular bottom surface portion 31, a long side wall portion 33 provided above both long sides thereof, and a short side wall portion 34 provided above both short sides thereof. And A partition shape portion 35 is provided inside the interior container 3. The partition shape portion 35 is provided continuously from the inner surfaces of the long side wall portion 33 and the short side wall portion 34. The partition shape portion 35 partitions a part of the storage space inside the interior container 3 so as to be a place where the cooling agent 5 shown in FIG. 2 is mounted.

  On the outer surface of the long side wall portion 33 of the inner container 3, a convex locking portion 36 and a positioning convex portion 37 are provided. The locking portion 36 is only visible on the long side wall 33 on the front side in FIG. 1, but is similarly formed on the outer surface of the long side wall 33 on the back side. The positioning protrusion 37 is also provided on the outer surface of the short side wall 34 of the inner container 3. The interior container 3 is not provided with a hole provided in the exterior container 2. Further, a concave portion 40 is formed on the inner surface of the long side wall portion 33 of the inner container 3. The position where the concave portion 40 is formed is on the back side of the position where the locking portion 36 is provided.

  FIG. 3 is a perspective view of the outer container 2, the inner container 3, and the lid 4 in a state where the lid 4 is turned upside down. Note that the lid 4 is a rectangular plate-like member that has almost the same shape as the entire bottom part 21 and the bottom part 31.

  FIG. 4 is a perspective view showing a state in which the inner container 3 is mounted on the outer container 2. In the storage container 1 shown in FIG. 4, the lid 4 is not attached. On the other hand, in the storage container 1 of FIG. 4, the cooling agent 5 shown in FIG. 2 is mounted. The cold insulator 5 in FIG. 2 is held in a space between the short side wall portion 34 and the partition shape portion 35 in the interior container 3.

  Further, in FIG. 4, the locking portion 36 of the inner container 3 projects outside through the hole 26 of the outer container 2. In other words, the convex locking portion 36 enters the hole 26 which is a through hole from the inner surface side and is hooked. That is, the hole 26 functions as a locked portion where the locking portion 36 is hooked. Thereby, in the storage container 1 of FIG. 4, the interior container 3 is prevented from coming off from the exterior container 2 by itself. However, since the inner container 3 is flexible as described above, the inner container 3 can be removed from the outer container 2 by pushing the locking portion 36 from the outside intentionally to release the inner container 3 from the hole 26. Can be. In particular, since the back of the locking portion 36 has a concave portion 40 and is thin, the locking portion 36 can be easily pushed. FIG. 5 shows a state where the lid 4 is further set to the state shown in FIG. In the state shown in FIG. 5, the opening of the interior container 3 is closed by the lid 4.

  Next, the main part of the storage container 1 of the present embodiment as the present invention will be described. The feature of the storage container 1 of the present embodiment lies in the removal of the lid 4 from the closed state shown in FIG. Therefore, FIGS. 6 (inner container 3) and FIG. 7 (lid 4) show enlarged views of the inner container 3 and the cover 4 including the shape relating to the removal. As shown in FIG. 6, an upper end surface (first closed surface) 41 is formed at the upper end of the long side wall portion 33 and the short side wall portion 34 of the interior container 3. The upper end surface 41 is provided over the entire periphery of the interior container 3 opening. The upper end face 41 faces the lid 4. A first recess 42 is formed in a part of the upper end surface 41. The first concave portion 42 is formed in the upper end portion of the short side wall portion 34 of the interior container 3 in a shape hollowed out from the upper side and the outer side.

  On the other hand, as shown in FIG. 7, the lid 4 has a second recess 43 formed therein. The second recess 43 is formed on the short side of the lid 4. FIG. 8 shows a state in which the lid 4 shown in FIG. 7 is viewed from the back side. As shown in FIG. 8, a convex portion 44 is formed on the back surface of the lid 4 slightly inside the edge. Outside the convex portion 44, a flat edge surface (second closing surface) 45 is formed. The convex portion 44 and the edge surface 45 are formed over the entire circumference of the lid 4. The second concave portion 43 is formed in a part of the edge surface 45 on the short side of the lid 4 so as to be hollowed out from the upper side and the outer side in FIG. The second concave portion 43 is also formed over the outer surface of the lid 4, that is, the surface facing downward in FIG. 8 and facing upward in FIG.

  FIG. 9 shows a sectional view of the storage container 1 of the present embodiment. The cross-sectional view of FIG. 9 shows a vertical cross section in a direction parallel to the long side in a state where the inner container 3 and the lid 4 are mounted on the outer container 2. The cross-sectional position is the center in the short side direction. FIG. 9 illustrates a state in which the cooling agent 5 is attached to the partition 35 of the interior container 3. FIG. 9 also shows a situation in which the inner container 3 is positioned with respect to the outer container 2 by the positioning protrusion 37. As shown in FIG. 9, when the lid 4 is closed, the convex portion 44 on the back surface of the lid 4 fits into the opening of the inner container 3 and is in contact with the inner surface thereof. Further, the inner space of the inner container 3 is isolated from the outside world by the contact between the upper end surface 41 of the inner container 3 and the edge surface 45 of the lid 4.

  FIG. 9 also shows the first recess 42 of the interior container 3 and the second recess 43 of the lid 4. As is clear from FIG. 9, the first concave portion 42 and the second concave portion 43 face each other when the lid 4 is closed, and are continuous. Therefore, a considerably large space is formed by the first concave portion 42 and the second concave portion 43. For this reason, the operation of removing the lid 4 from the closed storage container 1 is easy. This is because a fingertip can be easily inserted into a wide space between the first concave portion 42 and the second concave portion 43 to lift the lid 4.

  FIG. 9 also shows that there is a gap between the inner surface of the short side wall portion 24 of the outer container 2 and the outer surface of the short side wall portion 34 of the inner container 3. This gap is formed by the positioning projection 37 described above. The action of the positioning projection 37 for forming this gap also contributes to the ease of removing the lid 4. This is because a slight gap is formed between the lid 4 and the outer container 2 by this action. Since the positioning protrusion 37 is provided on the same side wall (the short side wall 34 in this case) as the side wall on which the first recess 42 and the like are provided, the space of the first recess 42 and the second recess 43 is provided. It is easy to insert a fingertip into the device.

  As shown in FIGS. 1, 3, and 6, a region adjacent to the positioning convex portion 37 on the outer surface of the long side wall portion 33 and the short side wall portion 34 is a concave portion 39. The formation of the recess 39 facilitates the operation of inserting the inner container 3 into the outer container 2 while compressing the positioning protrusion 37. This is because the influence of the deformation of the positioning convex portion 37 due to the compression does not reach much outside the concave portion 39 in the long side wall portion 33 and the short side wall portion 34.

  From FIG. 9, it can also be seen that the second concave portion 43 is formed with an inclined outer surface 46 that approaches the outer container 2 as the distance from the upper end surface 41 of the inner container 3 increases. The inclined outer surface 46 also contributes to the ease of removing the lid 4. This is because when the fingertip inserted into the space between the first concave portion 42 and the second concave portion 43 is raised, the lid 4 is naturally hooked on the fingertip and lifted up together with the inclination direction of the inclined outer surface 46.

  Also, from FIG. 9, it can be seen that the upper end surface 41 and the edge surface 45 are also in contact with each other at the positions of the first concave portion 42 and the second concave portion 43 at the depth side. That is, the upper end surface 41 and the edge surface 45 are in contact with each other over the entire circumference of the opening of the inner container 3 including the first concave portion 42 and the second concave portion 43. For this reason, even if the first concave portion 42 and the second concave portion 43 are provided, the heat insulation of the interior container 3 and the lid 4 is hardly hindered. If the contact between the upper end surface 41 and the edge surface 45 is interrupted at the positions of the first concave portion 42 and the second concave portion 43, the coolness and the heat insulation of the storage container 1 are deteriorated accordingly. However, this is not the case in the present embodiment.

  Here, a modified example of the first concave portion 42 and the second concave portion 43 will be described. FIG. 10 shows a modification in which the first concave portion 42 of the inner container 3 is dug further inward than the case shown in FIG. In this modification, a part of the edge surface 45 is a step-shaped portion 47 at the position of the second concave portion 43 of the lid 4. A space below the step-shaped portion 47 is a space for the first concave portion 42. With this configuration, it is easy to put a finger on the step-shaped portion 47, so that the lid 4 can be more easily removed.

  FIG. 11 shows a modification in which not only the first concave portion 42 but also the second concave portion 43 are dug into the inside. In this modification, the step-shaped portion 47 is located near the middle of the thickness of the lid 4. Below the step-shaped portion 47 is a space for the second recess 43 and a space for the first recess 42. With this configuration, the space below the step-shaped portion 47 is wide, and the finger can be easily put on the step-shaped portion 47. In each of the modified examples of FIGS. 10 and 11, the upper end surface 41 and the edge surface 45 are in contact with each other at the positions of the first concave portion 42 and the second concave portion 43 at the depth side.

  The storage container 1 of the present embodiment can be used in a stacked state as shown in FIGS. In FIG. 13, the shapes shown in FIG. 9 are illustrated as the shapes of the first concave portion 42 and the second concave portion 43. However, the shapes shown as modified examples of FIG. 10 or FIG. 11 may be used.

  As described above in detail, according to the storage container 1 of the present embodiment, the first concave portion 42 and the second concave portion 43 are provided in the inner container 3 and the lid 4. This secures a space for inserting a hand to remove the lid 4 from the closed state. By doing so, the storage container 1 in which the lid 4 of the internal container 3 can be easily removed while realizing a double structure of the external container 2 and the internal container 3 is realized. Further, the airtightness between the interior container 3 and the lid 4 is maintained while providing a space for such an operation of removing the lid 4.

  Note that the present embodiment is merely an example, and does not limit the present invention in any way. Therefore, naturally, the present invention can be variously modified and modified without departing from the gist thereof. For example, in the present embodiment, the width direction dimensions of the first concave portion 42 and the second concave portion 43 are set to about one third of the entire width of the inner container 3 in the short side direction (FIG. 6 and the like). Is also good. At least, the present invention is established if there is a width of one finger. Further, the shape of other parts such as the handle 27, the partition shape part 35, the locking part 36, the positioning convex part 37, the concave part 40, the convex part 44, etc. is arbitrary. Further, in the present embodiment, the first concave portion 42 and the second concave portion 43 are provided at positions on the short side, but may be provided at positions on the long side.

DESCRIPTION OF SYMBOLS 1 Storage container 2 Outer container 3 Inner container 4 Lid 37 Positioning convex part 41 Upper end surface (1st closed surface)
42 First recess 43 Second recess 45 Edge surface (second closing surface)
46 Inclined outer surface 47 Step shape part

Claims (5)

A storage container having an outer container, both made of a resin material, an inner container mounted inside the outer container, and a lid for closing an opening of the inner container,
A first closing surface facing the lid is formed around the opening in the inner container;
A second closing surface that is in contact with the first closing surface in a closed state at an edge of the lid;
A storage container, wherein a first concave portion and a second concave portion that are continuous in a closed state are formed on outer peripheral sides of the first closed surface and the second closed surface, respectively. The storage container according to claim 1, wherein
The storage container according to claim 1, wherein the second concave portion of the lid has an inclined outer surface that is closer to the outer container as the distance from the first closed surface increases. The storage container according to claim 1 or 2, wherein
The storage container, wherein the first closed surface and the second closed surface are in contact with each other even in a position on the back side of the first concave portion and the second concave portion in a closed state. A storage container according to any one of claims 1 to 3, wherein
On the outer surface of the side wall of the inner container, there is provided a projection which forms a gap between the inner surface of the side wall of the outer container when the outer container is mounted on the outer container,
The storage container according to claim 1, wherein the first recess is formed on a side wall of the interior container where the protrusion is provided. A storage container according to any one of claims 1 to 4, wherein
A storage container, wherein the lid is provided with a step-shaped portion which is located above a space of the first concave portion in a closed state.

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