JP6934166B2 - Containers and stacking structure of containers - Google Patents

Description

The present invention relates to a container used for transporting articles and the like, and a stacking structure of the container.

Conventionally, a container for storing a cold insulating material or the like and controlling the internal temperature has been known. Further, in order to improve storage / transportation efficiency when not in use (when articles are not stored), the inner surface of the side wall of the lower container and the outer surface of the side wall of the upper tray are made to face each other. , There is a technique such as configuring containers so that they can be stacked one on top of the other (configuring so that nesting is possible) (see, for example, Patent Document 1 and the like).

Japanese Unexamined Patent Publication No. 11-124140

By the way, in the configuration of nesting as in Patent Document 1, although the height of the stacked containers can be suppressed, the limit is that the lower half of the upper container is inserted into the lower container. Therefore, it is required to further improve the storage and transportation efficiency of the container when it is not in use. It is also desirable that the cold insulation material used as a set with the container can be easily stored.

The present invention has been made to solve the above-exemplified problems and the like, and an object of the present invention is to improve storage and transportation efficiency when not in use in a container that can be used as a set with a cold insulating material. To provide a container.

Hereinafter, each means suitable for solving the above-mentioned objectives and the like will be described separately for each item. In addition, if necessary, the action and effect peculiar to the corresponding means will be added.

Means 1. The bottom wall component, which has a rectangular plate shape in a plan view,
An upright position that stands above each side of the bottom wall component and a laying position that is laid down on the center side of the bottom wall component, corresponding to each side of the bottom wall component. In a container provided with a side wall portion rotatably provided between and
The bottom wall component includes a bottom wall portion having a substantially rectangular plate shape and a base portion projecting upward along each side side portion of the bottom wall portion.
Each of the base portions includes a bearing portion that pivotally supports each of the side wall portions.
The base portion is formed by connecting a pair of first base portions provided along a pair of side sides of the bottom wall portion and both ends of the pair of first base portions, respectively. It is provided with a pair of second bases provided along the side edges of the bottom wall.
The side wall portion includes a pair of first side wall portions connected to each of the first base portions and a pair of second side wall portions connected to each of the second base portions.
The bearing portion of the first base portion is located above the bearing portion of the second base portion.
By setting the pair of the second side wall portions in the laying position, the first side wall portion can be set in the laying position above the second side wall portion.
When all the side wall portions are in the laying position, the cold insulating material can be accommodated between the second side wall portion in the laying position and the first side wall portion in the laying position. cold insulating material accommodating portion for is provided,
When the pair of the first side wall portions are set to the laying position, the pair of first side wall portions are set to the laying position at the same height position, and the area between the pair of the first base portions is abbreviated. The whole is covered with a pair of the first side wall portions from above,
A container characterized in that, in the second base portion, an opening that communicates with the cold insulating material accommodating portion is provided when the second side wall portion is in the laying position.

According to the means 1, in a foldable container having excellent storage / transportation efficiency when not in use, the cold insulation material (including the heat insulation material) is used even in the foldable state in which all the side wall portions are in the laid position. It can be accommodated between the second side wall portion in the laying position and the first side wall portion in the laying position. By storing the cold insulation material inside the folded container in this way, for example, the ease of managing the cold insulation material is dramatically improved compared to the case where the cold insulation material is stored separately from the container. Can be improved. Therefore, the storage / transportation efficiency of the container when not in use can be improved, and the cold insulating material can be suitably stored. Further, in the folded state of the container, the cover is covered by the first side wall portion above the cold insulating material, so that the cold insulating material can be prevented from falling off.
Further, in the folded state of the container, since substantially the entire upper part of the bottom wall portion is covered by the pair of first side wall portions, it is possible to suppress a situation in which foreign matter enters the inside of the folded container from above. can. Further, by putting the container in the folded state, the pair of first side wall portions can suppress the heat dissipation (cooling) of the cold insulating material housed in the cold insulating material accommodating portion upward. Therefore, for example, when it is possible to stack the containers on top of each other, the uppermost container is heat-insulated and the uppermost container is heat-insulated by accommodating the cold insulating material in the cold insulating material accommodating portion and putting it in a folded state. , Can be used as a lid that can control the temperature.
Further, even when the container is in the folded state, the cold insulation material accommodating portion can be confirmed (visually visible) from the side position of the container through the opening formed in the second base portion. Therefore, when the container is in the folded state, it is relatively easy to confirm whether or not the cold insulating material is contained in the cold insulating material accommodating portion and whether or not foreign matter is contained. In addition, when the container is in the folded state, a finger is placed on the lower surface (or the inner surface if it is in the upright position) of the first side wall portion in the laid position through the opening of the second base portion. It becomes easy to hang the container, and workability at the time of assembling and folding the container can be improved.

It should be noted that "the side wall portion and a part or almost all of the bottom wall constituent portion may be made of a heat insulating material". For example, "a side wall heat insulating member made of a foamed synthetic resin and mounted on the inner surface side of the side wall portion is provided, and the bottom wall component portion and the side wall portion are made of a non-foamed synthetic resin and the side wall portion. Is provided with a side wall heat insulating accommodating portion for accommodating at least a part of the side wall heat insulating member in the thickness direction of the side wall portion, and the side wall portion is placed in the upright position while the side wall insulating member is attached to the side wall portion. It may be configured so that it can be displaced to the above-mentioned laying position. "

Means 2. Means 1 characterized in that at least one of the pair of second side wall portions in the laid position extends substantially parallel to the upper surface of the bottom wall portion and is in contact with the bottom wall portion in a surface. The container described in.

According to the means 2, even if the second side wall portion in the laid position is stably supported and the cold insulating material is placed on the upper side of the second side wall portion in the laid position, the second side wall portion is formed. It is possible to prevent deformation and damage of the bearing portion of the second base portion. Further, the height of the container in the folded state can be further suppressed by extending the second side wall portion in the laid position substantially parallel to the bottom wall portion.

Means 3. The first side wall portion set to the laying position is in contact with the upper surface of the cold insulation material installed in the cold insulation material accommodating portion or the upper surface of each of the second base portions, and is substantially parallel to the upper surface of the bottom wall portion. The container according to means 1 or 2, characterized in that it extends.

According to the means 3, the first side wall portion that is laid down is stably supported, and even if a force is applied to the first side wall portion from above, the bearings of the first side wall portion and the first base portion. Deformation and damage of the part can be suppressed. Further, the height of the container in the folded state can be further suppressed by extending the first side wall portion in the laid position substantially parallel to the bottom wall portion.

The first side wall portion in the laid position is in contact with the cold insulation material when the cold insulation material is installed in the cold insulation material accommodating portion, and is contacted with the second base portion when the cold insulation material is not installed. It may be configured to be in contact with the second base portion even if a cold insulating material is installed.

Means 4. In the container stacking structure using the container according to any one of the above means 1 to 3,
Of the side wall portion and the bottom wall component portion, at least a part of each side wall portion is composed of a heat insulating member made of foamed synthetic resin.
A container in which all the side wall portions are in an assembled state in which the standing position is set, and a cold insulating material is housed inside.
It is placed on the upper side of the container in the assembled state, and is in a folded state in which all the side wall portions are in the laid position, and the cold insulation material accommodating portion includes a container in which the cold insulation material is stored. The container stacking structure is characterized by this .

According to the means 5, the article requiring temperature control and the cold insulating material are housed inside the container in the assembled state, and the cold insulating material is stored in the cold insulating material storage portion in the folded state on the upper side thereof. By stacking (covering) the containers, the folded container can be used as a lid that can be heat-insulated and temperature-controlled. In particular, since a part of each side wall portion is composed of a heat insulating member, heat dissipation of the cold insulating material housed in the cold insulating material accommodating portion can be further suppressed. Therefore, for example, as compared with the case where a lid member to be put on the container, particularly a lid member having a function of heat insulation and temperature control is separately manufactured and the lid member is managed together with the container, the management efficiency is improved and the management is improved. It is possible to reduce the manufacturing cost. Further, even if a container is used instead of the lid, the height of the stacked containers can be suppressed as much as possible by setting the container to be used as the lid in a folded state.

It is a perspective view which looked at the folding container in the assembled state from the top side. It is a perspective view which looked at the folding container in a folded state from the upper surface side. It is a perspective view for demonstrating the process of changing a folding container from a folded state to an assembled state. It is a perspective view which shows the state which contained the cold insulation material in the folding container in the assembled state. It is a perspective view for demonstrating the process of accommodating a cold insulating material in a cold insulating material accommodating part and putting it in a folded state. It is a perspective view which includes the cross section when the folding container in a folded state is cut up and down along the longitudinal direction of a folding container. It is a perspective view which includes the cross section in the case where the folding container which housed a cold insulation material in a cold insulation material accommodating part and was in a folded state, was cut up and down along the longitudinal direction of a folding container. It is a perspective view which shows the folding container which was stacked. It is a perspective view which includes the cross section when the stacked folding container is cut up and down along the lateral direction of each folding container.

Hereinafter, one embodiment will be described with reference to the drawings. As shown in FIG. 1 and the like, the folding container 1 as a container has a substantially rectangular plate-shaped bottom wall portion 3 and projects upward from the bottom wall portion 3 along each long side portion of the bottom wall portion 3. The long side base portion 4 as the first base portion and the short side base portion 5 as the second base portion protruding upward from the bottom wall portion 3 along each short side portion of the bottom wall portion 3. It is provided with a bottom wall component 2 to be provided. Further, the folding container 1 has a long side side wall portion 6 as a first side wall portion rotatably provided for each long side base portion 4 and a short side base portion 5 respectively. It is provided with a short side side wall portion 7 as a second side wall portion rotatably provided. The bottom wall component 2, the long side side wall 6, and the short side side wall 7 are made of non-foamed (solid) polypropylene.

As shown in FIGS. 1 to 3, the long side side wall portion 6 and the short side side wall portion 7 are erected above the long side side base portion 4 and the short side side base portion 5, respectively. It is configured so that it can be rotatably displaced between the standing position and the laying position laid on the central portion side of the bottom wall portion 3. Further, the protruding length of the long side base portion 4 from the bottom wall portion 3 is longer than the protruding length of the short side base portion 5 from the bottom wall portion 3, and the long side side wall portion 6 is rotated. The forming position of the long side bearing portion 8 for rotatably supporting is also located above the forming position of the short side bearing portion 9 for rotatably supporting the short side side wall portion 7. Further, each short side base portion 5 is provided so as to connect the inner surfaces of the pair of long side base portions 4 facing each other. In addition, the lateral width of the long side side wall portion 6 is configured to be the same as the longitudinal length of the long side base portion 4, and the lateral width of the short side side wall portion 7 is the longitudinal length of the short side base portion 5. It is configured to be the same as the length.

Therefore, in the present embodiment, the folding container 1 in the assembled state in which all the long side side wall portions 6 and the short side side side wall portions 7 are in the upright position is provided with all the long side side wall portions 6 and the short side side wall portions 6. In the case of the folded state in which the short side side wall portion 7 is in the laid position, the pair of short side side wall portions 7 are first displaced to the laid position, and then the long side side wall portion 6 is placed in the laid position. It is configured to be displaced to. Then, as shown in FIGS. 2 and 6, when the folding container 1 is in the folded state, the short side side wall portion 7 which is the laying position overlaps the bottom wall portion 3 and is set to the laying position. The long side side wall portion 6 is overlapped above the short side side wall portion 7.

In addition, as shown in FIG. 3 and the like, the long side side wall portion 6 is provided with a locking wall 11 projecting inward from the left and right side side portions of the inner surface. As shown in FIG. 1 and the like, when the folding container 1 is in the assembled state, both side portions of the outer surface of the short side side wall portion 7 come into contact with the locking wall 11, whereby the short side side side wall portion 7 Tilt displacement to the outside is prevented. Further, when the folding container 1 is in the assembled state, the inner surface side of the long side side wall portion 6 comes into contact with both side portions of the inner surface of the short side side wall portion 7 to the inside of the short side side side wall portion 7. An elastic locking piece 12 that tilts and displaces is provided.

By the way, the long side side wall insulating member 14 is mounted on the inner surface side of the long side side wall portion 6 of the present embodiment, and the short side side wall insulating member 15 is mounted on the inner surface side of the short side side wall portion 7. There is. More specifically, on the inner surface side of the long side side wall portion 6, a long side side wall insulation accommodating portion 16 for accommodating the long side side wall heat insulating member 14 is provided, and on the inner surface side of the short side side wall portion 7. , The short side side wall insulation accommodating portion 17 for accommodating the short side side wall insulation member 15 is provided. Hereinafter, ribs provided on the inner surface side of the long side side wall portion 6 and defining the outer circumference (upper edge, lower edge, and left and right side edges when in the upright position) of the long side side wall insulation accommodating portion 16 are provided. The ribs provided on the inner surface side of the short side side wall portion 7 and defining the outer circumference of the short side side wall insulation accommodating portion 17 are also referred to as “long side surrounding ribs 18”, and are also referred to as “short side surrounding ribs 19”. The long side side wall heat insulating member 14 and the short side side wall heat insulating member 15 of the present embodiment are each integrally made of foamed polypropylene.

As shown in FIGS. 6 and 9, the depth of the long side side wall insulation accommodating portion 16 and the short side side wall insulation accommodating portion 17 in the thickness direction of the long side side wall portion 6 and the short side side wall portion 7 The thickness is substantially the same as the thickness of the long side side wall heat insulating member 14 and the short side side wall heat insulating member 15, respectively. Therefore, in a state where the long side side wall heat insulating member 14 and the short side side wall heat insulating member 15 are attached to the long side side wall portion 6 and the short side side side wall portion 7, the long side side side wall heat insulating member 14 The surface of the short side side wall heat insulating member 15 exposed to the inside of the folding container 1 and the tip of the long side surrounding rib 18 and the short side surrounding rib 19 are substantially flush with each other.

Further, as shown in FIGS. 6 and 9, on the inner surface side of the long side side wall portion 6 and the short side side wall portion 7, the long side surrounding rib 18 and the short side surrounding rib 19 are more than the short side surrounding rib 19. An auxiliary rib 20 having a short protrusion length is provided. On the other hand, the long side side wall heat insulating member 14 and the short side side wall heat insulating member 15 are provided with auxiliary groove portions 21 into which the auxiliary ribs 20 are relatively inserted. Then, by attaching the long side side wall heat insulating member 14 and the short side side wall heat insulating member 15 to the long side side wall portion 6 and the short side side wall portion 7, the long side side side wall heat insulating member 14 and , The short side side wall heat insulating member 15 is fitted to the inner peripheral side of the long side surrounding rib 18 and the short side surrounding rib 19, and the auxiliary rib 20 is inserted into the auxiliary groove portion 21. As a result, misalignment of the long side side wall heat insulating member 14 and the short side side wall heat insulating member 15 is suppressed, and the long side side wall heat insulating member 14 and the short side side wall heat insulating member 15 are preferably mounted. It is supposed to be maintained at.

Further, on the inner surface side of the long side side wall portion 6 and the short side side wall portion 7, the long side side side wall portion 6 and the long side side wall heat insulating member 14 attached to the short side side wall portion 7 In addition, a locking portion 22 (see FIGS. 6 and 9) for locking the short side side wall heat insulating member 15 is provided. In the present embodiment, the locking portion that protrudes from the tip of the long side surrounding rib 18 and the short side surrounding rib 19 to the inner peripheral side of the long side surrounding rib 18 and the short side surrounding rib 19. 22 and the locking portion 22 protruding laterally from the tip of the portion where a part of the auxiliary rib 20 is extended on the inner peripheral side of the long side surrounding rib 18 and the short side surrounding rib 19. The long side side wall heat insulating member 14 and the short side side wall heat insulating member 15 are provided in a well-balanced manner by a plurality of locking portions 22.

Further, the locked portion 23 locked to the locking portion 22 is recessed in a portion corresponding to each locking portion 22 on the surfaces of the long side side wall heat insulating member 14 and the short side side wall heat insulating member 15. It is configured by forming (steps). Corresponding to the locking portion 22 provided at the tip of the portion where a part of the auxiliary rib 20 is extended, the locking hole 24 is provided in the long side side wall insulating member 14 and the short side side wall insulating member 15. Is provided, and a locked portion 23 is provided adjacent to the locking hole 24. Further, the locking portion 22 is configured to be within the thickness range of the long side side wall heat insulating member 14 and the short side side wall heat insulating member 15 mounted on the side wall portions 6 and 7. As a result, the locking portion 22 projects toward the inner peripheral side of the folding container 1 from the surfaces of the long side side wall heat insulating member 14 and the short side side wall heat insulating member 15, and comes into contact with the article housed in the folding container 1. Etc. are avoided.

In addition, in the present embodiment, the long side side wall portion 6 and the short side side wall portion 7 are provided with the long side side side wall insulation accommodating portion 16 and the short side side wall insulation accommodating portion 16 provided on the inner surface side thereof. No hole is formed so as to communicate the portion 17, the long side side wall portion 6, and the short side side wall portion 7 on the outer surface side. Further, various ribs such as a long side surrounding rib 18, a short side surrounding rib 19, and an auxiliary rib 20 are provided on the inner surface side of the long side side wall portion 6 and the short side side side wall portion 7. Therefore, ribs are basically not provided on the outer surface side of the long side side wall portion 6 and the short side side side wall portion 7. Therefore, most of the outer surfaces of the long side side wall portion 6 and the short side side side wall portion 7 are flat surfaces extending on the same plane.

Further, in the present embodiment, the bottom wall heat insulating member 26 is mounted on the upper surface side of the bottom wall component 2. More specifically, as shown in FIG. 7 and the like, a grid-shaped bottom rib 27 is provided on the upper surface of the bottom wall portion 3 of the bottom wall constituent portion 2. Further, each long side base portion 4 is opened on the inner peripheral side of the bottom wall constituent portion 2, and is a part of the bottom wall heat insulating member 26 in the thickness direction of the long side base portion 4 (base corresponding portion 31 described later). The base insulation accommodating portion 28 for accommodating the above is provided. Further, among the long side base portions 4, the portions corresponding to the long side bearing portions 8 in the longitudinal direction and the longitudinal side side portions of the long side base portion 4 are provided with the base heat insulating accommodating portions 28. It is configured as an inner wall remaining portion 29 that is not bearing.

As shown in FIGS. 1, 6 and 9, the bottom wall heat insulating member 26 is mounted on the bottom wall corresponding portion 30 mounted on the upper surface side of the bottom wall portion 3 and on the inner surface side of the long side base portion 4. The base corresponding portion 31 is provided, and the bottom wall corresponding portion 30 and the base corresponding portion 31 are integrally formed of expanded polypropylene. A bottom groove portion 32 into which the bottom surface rib 27 is fitted is provided on the lower surface side of the bottom wall corresponding portion 30. Then, by inserting the bottom surface rib 27 into the bottom groove portion 32 of the bottom wall corresponding portion 30, the bottom wall corresponding portion 30 is above the bottom wall portion 3 and the long side base portion 4 and the short side base portion 5 It is installed in the area surrounded by. Further, the base corresponding portion 31 is housed in the base heat insulating accommodating portion 28. The depth of the base heat insulating accommodating portion 28 in the thickness direction of the long side base portion 4 is configured to be deeper than the thickness of the base corresponding portion 31, and the base corresponding portion 31 is basically wider than the inner wall remaining portion 29. It is configured so as not to project toward the inner peripheral side of the bottom wall component 2.

In the folding container 1 of the present embodiment, the long side side wall heat insulating member 14, the short side side wall heat insulating member 15, and the bottom wall heat insulating member 26 are provided with the long side side wall portion 6, the short side side wall portion 7, and the bottom. The long side side wall portion 6 and the short side side wall portion 7 are configured to be displaceable between the upright position and the laying position while being mounted on the wall component 2.

As shown in FIG. 1 and the like, a concave handle portion 33 is provided on the outer surface side of the short side side wall portion 7. Further, as shown in FIG. 6, the short side side wall portion 7 is provided with the handle portion 33, so that the handle corresponding convex portion 34 is secondarily provided on the inner surface side of the short side side side wall portion 7. Has been done.

On the other hand, the short side side wall heat insulating member 15 includes an insertion recess 35 into which the handle-corresponding convex portion 34 is inserted on the back surface side facing the inner surface of the short side side wall portion 7. Further, the short side side wall heat insulating member 15 is provided with an insertion-compatible convex portion 36 on the surface side with respect to a portion including a portion on the opposite surface side of the insertion recess 35. By providing the insertion-corresponding convex portion 36, it is possible to secure an appropriate wall thickness of the portion of the short side side wall heat insulating member 15 where the insertion recess 35 is provided.

Further, the insertion-compatible convex portion 36 is inside the folding container 1 (in a laid position) with respect to the tip end portion of the short side surrounding rib 19 when the short side side wall insulating member 15 is attached to the short side side wall portion 7. In some cases, it protrudes downward).

On the other hand, in the bottom wall corresponding portion 30 of the bottom wall heat insulating member 26, when the short side side wall portion 7 is laid down on the upper surface side, the insertion corresponding convex portion 36 of the short side side wall heat insulating member 15 is formed. It is provided with a permissible recess 37 to be accommodated. When the short side side wall portion 7 is laid down, the insertion-compatible convex portion 36 is accommodated in the allowable recess 37, and the tip portion of the short side side surrounding rib 19 of the short side side wall portion 7 and the short side side wall portion 7 are accommodated. The surface of the side side wall heat insulating member 15 comes into contact with the upper surface of the bottom wall corresponding portion 30 of the bottom wall heat insulating member 26. In the present embodiment, the distance between the pair of short side base portions 5 is longer than twice the height of the short side side wall portions 7, and the short side side wall portions 7 are longer than the height of the short side side wall portions 7. The portion 7 (the tip of the short side surrounding rib 19 and the surface of the short side side wall heat insulating member 15) comes into contact with the bottom wall component 2 (the bottom wall corresponding portion 30 of the bottom wall heat insulating member 26) on a surface. It has become like. Further, the short side side wall portion 7 which is laid down extends substantially parallel to the upper surface of the bottom wall portion 3 (bottom wall corresponding portion 30).

By the way, the folding container 1 of the present embodiment is intended to be used for transporting articles that require temperature control, and it is expected that there will be many opportunities to be used as a set with the cold insulating material 39. When the cold insulation material 39 is used, for example, as shown in FIG. 4, the folding container 1 is in the assembled state, and the cold insulation material 39 is attached to the bottom wall component 2 (the bottom wall corresponding portion 30 of the bottom wall heat insulating member 26). Place it. Then, the article is accommodated above the cold insulation material 39.

Further, in the present embodiment, when the folding container 1 is in the folded state, the cold insulating material is placed between the short side side wall portion 7 which is the laid position and the long side side side wall portion 6 which is the laid position. A cold insulation material accommodating portion 40 capable of accommodating 39 is provided.

More specifically, the short side base portions 5 are a plurality of portions (four in this example) provided between the short side bearing portions 9 and projecting upward from the short side bearing portions 9. It is provided with (three in this example) short side support convex portions 41. The distance between the short side support convex portions 41 is shorter than the width of the short side portions of the cold insulating material 39. When the short side side wall portion 7 is in the laid position, the outer surface of the short side side wall portion 7 (the surface facing upward when in the laid position) is substantially the same as the upper end portion of the short side bearing portion 9. It is in the height position (slightly higher position) and is located below the upper end of the short side support convex portion 41.

Further, the distance between the pair of long-side side wall portions 4 is slightly longer than twice the height of the long-side side side wall portions 6, and the pair of long-side side side wall portions 6 are positioned at the same height. It is configured so that it can be laid down with. Further, when the long side side wall portion 6 is laid down, the locking walls 11 on both sides of the long side side wall portion 6 are the upper surfaces of the short side support convex portions 41 of each short side base portion 5. It comes into contact with and is supported. Further, as shown in FIGS. 2 and 6, the pair of long side side wall portions 6 which are laid down are arranged so that the upper side portions thereof are close to each other and face each other, and the bottom wall portion 3 (bottom wall). It extends substantially parallel to the upper surface of the corresponding portion 30).

Further, in the present embodiment, the distance between the short side side wall portion 7 set as the laying position and the long side side side wall portion 6 set as the laying position is configured to be longer than the thickness of the cold insulating material 39. However, the cold insulation material accommodating portion 40 is formed between the short side side wall portion 7 which is the laid position and the long side side side wall portion 6 which is the laid position. The height of the cold insulation material accommodating portion 40 (the distance between the short side side wall portion 7 as the laying position and the long side side wall portion 6 as the laying position) is the short side side wall portion 7. It is preferable that the thickness is larger than the thickness of the side wall portion 7 on the short side, and it is preferable that the thickness is smaller than twice the thickness of the side wall portion 7 on the short side.

Then, as shown in FIG. 3, with the pair of short side side wall portions 7 in the laid position, as shown in FIG. 5, the cold insulating material 39 is placed above the short side side wall portions 7. As shown in FIG. 2, by laying the pair of long side side wall portions 6 in the laid position, the cold insulating material 39 is accommodated in the cold insulating material accommodating portion 40 of the folding container 1 in the folded state.

Further, in the folded state of the folding container 1, substantially the entire area between the pair of long side base portions 4 is covered by the pair of long side side wall portions 6 from above. Therefore, the cold insulation material accommodating portion 40 cannot be visually recognized from above. In this respect, in the present embodiment, when the folding container 1 is in the folded state, the short side bearing portion 9 of the short side base corresponding portion 31 and the locking wall 11 of the long side side wall portion 6 in the laid position An opening 42 that communicates with the cold insulation material accommodating portion 40 is provided between the two. As a result, the cold insulation material accommodating portion 40 can be visually recognized through the opening 42. In the assembled state of the folding container 1, the opening 42 formed in the short side base portion 5 when the short side side wall portion 7 is in the laid position is closed by the short side side side wall portion 7. It has become like.

Further, the folding container 1 of the present embodiment has the shape of the upper side of the lower folding container 1 when the folding containers 1 in the assembled state are stacked (stacked) as shown in FIGS. 8 and 9. , The shape of the lower surface of the upper folding container 1 matches, and the horizontal misalignment of the folding containers 1 is prevented. In the present embodiment, it is also possible to stably stack the folding containers 1 in the folded state.

Further, in the present embodiment, when the folding container 1 contains the article requiring temperature control and the cold insulating material 39 and is transported, the uppermost folding container 1 containing the article is kept cold. The material accommodating portion 40 is covered (stacked) with the folded container 1 in which the cold insulating material 39 is accommodated. As a result, the articles housed in each folding container 1 are sandwiched vertically by the layers provided with the cold insulating material 39, so that the temperature of the articles can be controlled more reliably.

As described in detail above, according to the present embodiment, when the folding container 1 is in the folded state, the short side side wall portion 7 is in the laid position and the long side side wall portion 6 is in the laid position. A cold insulation material accommodating portion 40 capable of accommodating the cold insulation material 39 is provided between the two. That is, even if the folding container 1 having excellent storage / transportation efficiency when not in use is in the folded state, the cold insulating material 39 can be accommodated between the short side side wall portion 7 and the long side side side wall portion 6. By accommodating the cold insulation material 39 inside the folding container 1 in the folded state in this way, for example, as compared with the case where the cold insulation material 39 is stored separately from the folding container 1, the cold insulation material 39 is managed. Ease of use can be dramatically improved. Therefore, the storage / transportation efficiency of the container (folding container 1) used as a set with the cold insulation material 39 when not in use can be improved, and the cold insulation material 39 can also be suitably stored. Further, in the folded state of the folding container 1, the cover is covered by the long side side wall portion 6 above the cold insulating material 39, so that the cold insulating material 39 can be prevented from falling off.

Further, when the short side side wall portion 7 is laid down, the inner surface of the short side side wall portion 7 (the tip portion of the short side side surrounding rib 19 and the surface of the short side side side wall heat insulating member 15) is formed. The bottom wall portion 3 of the bottom wall component 2 (the bottom wall corresponding portion 30 of the bottom wall heat insulating member 26) is brought into contact with the bottom wall portion 3 on a surface. Therefore, even if the short side side wall portion 7 in the laid position is stably supported and the cold insulating material 39 is placed on the upper side of the short side side wall portion 7 in the laid position, the short side is placed. Deformation or damage of the short side bearing portion 9 of the side side wall portion 7 and the short side base portion 5 can be suppressed. Further, the short side side wall portion 7 in the laid position extends substantially parallel to the upper surface of the bottom wall portion 3 (bottom wall corresponding portion 30), thereby suppressing the height of the folded container 1 in the folded state to be lower. be able to.

Further, when the long side side wall portion 6 is laid down, the locking walls 11 on the left and right sides of the long side side wall portion 6 are formed on the short side support convex portion 41 of each short side base portion 5. It is designed to come into contact with the upper surface. Therefore, the long side side wall portion 6 in the laid position is stably supported, and even if a force is applied to the long side side wall portion 6 in the laid position from above, the long side side wall portion 6 is laid. It is possible to prevent deformation and damage of the long side bearing portion 8 of 6 and the long side base portion 4. Further, the long side side wall portion 6 in the laid position extends substantially parallel to the upper surface of the bottom wall portion 3 (bottom wall corresponding portion 30), thereby suppressing the height of the folded container 1 in the folded state to be lower. be able to.

In addition, in the folded state of the folding container 1, the pair of long side side wall portions 6 covers substantially the entire area above the bottom wall portion 3 (the entire area between the pair of long side base portions 4). It is possible to suppress a situation in which foreign matter enters the inside of the folding container 1 in the folded state from above.

Further, by putting the folding container 1 in the folded state, the pair of long side side wall portions 6 can suppress the heat dissipation (cooling) of the cold insulating material 39 housed in the cold insulating material accommodating portion 40 upward. .. In particular, in the present embodiment, the bottom wall heat insulating member 26 is formed in the bottom wall portion 3 of the bottom wall constituent portion 2, the long side base portion 4, the long side side wall portion 6, and the short side side side wall portion 7. Since (the bottom wall corresponding portion 30 and the base corresponding portion 31), the long side side wall heat insulating member 14, and the short side side wall heat insulating member 15 are mounted, they are housed in the cold insulation material accommodating part 40. The heat dissipation of the cold insulating material 39 can be further suppressed.

Therefore, when stacking the folding containers 1, the uppermost folding container 1 is stored in the cold insulating material accommodating portion 40 to bring the uppermost folding container 1 into a folded state. It can be used as a lid that can be used for heat insulation and temperature control. Therefore, for example, the efficiency of management is as compared with the case where, for example, a lid member to be put on the folding container 1, particularly a lid member having a function of heat insulation and temperature control is separately manufactured and the lid member is managed together with the folding container 1. It is possible to reduce the manufacturing cost and the like. Further, even if the folding container 1 is used instead of the lid, the height of the stacked folding containers 1 can be suppressed as much as possible by putting the folding container 1 to be used as the lid in the folded state.

In addition, even if the folding container 1 is in the folded state, the cold insulation material accommodating portion 40 is confirmed (visually visible) from the lateral position of the folding container 1 through the opening 42 formed in the short side base portion 5. can do. Therefore, when the folding container 1 is in the folded state, it is relatively easy to confirm whether or not the cold insulating material 39 is contained in the cold insulating material accommodating portion 40 and whether or not foreign matter is contained. (It is also possible to take out the foreign matter of the cold insulation material accommodating portion 40 through the opening 42). In addition, when the folding container 1 is in the folded state, the lower surface (when in the upright position) of the long side side wall portion 6 in the laying position is passed through the opening 42 of the short side base portion 5. Is easy to hang a finger on the inner surface), and the workability at the time of assembling and folding the folding container 1 can be improved.

The content is not limited to the description of the above embodiment, and may be implemented as follows, for example. Of course, other application examples and modification examples not illustrated below are also possible.

(A) In the above embodiment, the long side side wall heat insulating member 14 and the short side side wall heat insulating member 15 are mounted on the inner surface side of the long side side wall portion 6 and the short side side wall portion 7. The bottom wall heat insulating member 26 is mounted on the upper surface side of the bottom wall component 2, but the structure is not particularly limited to such a structure. For example, the bottom wall heat insulating member 26 may be omitted, or the long side side wall heat insulating member 14 and the short side side wall heat insulating member 15 may be omitted. Further, for example, the long side side wall portion 6, the short side side side wall portion 7, and the bottom wall component portion 2 are made of a foam material, and the side wall portion is made of a connecting member (pin hinge, hinge, etc.) to the bottom wall component portion. It may be configured to be rotatably connected. Further, the long side side wall portion 6, the short side side side wall portion 7, and the bottom wall component portion 2 may be composed of only a solid material.

(B) In the above embodiment, after the pair of short side side wall portions 7 are laid above the bottom wall component 2, the pair of short side side wall portions 7 are laid above the laid position. The pair of long-side side wall portions 6 can be laid down, but after the pair of long-side side wall portions 6 are laid down above the bottom wall component 2, a pair of short sides are laid down. The side side wall portion 7 may be configured so that it can be laid down. Further, in the above embodiment, in the folded state of the folding container 1, the short side side wall portions 7 do not overlap each other vertically, and the long side side wall portions 6 do not overlap each other vertically. However, they may be configured to overlap. In this case, of the pair of short side side wall portions 7, the short side side wall portion 7 (short side side wall heat insulating member 15) that is laid down first is substantially parallel to the bottom wall portion 3 of the bottom wall component portion 2. The bottom wall portion 3 (the bottom wall corresponding portion 30 of the bottom wall heat insulating member 26) may be brought into contact with the bottom wall portion 3 (the bottom wall corresponding portion 30).

(C) In the above embodiment, when the folding container 1 is in the folded state, even if the cold insulating material 39 is housed in the cold insulating material accommodating portion 40, the locking wall of the long side side wall portion 6 11 is configured to abut and be supported by the upper surface of the short side support convex portion 41 of the short side base portion 5, but in a state where the cold insulation material 39 is accommodated in the cold insulation material accommodating portion 40. The long side side wall portion 6 (long side side wall heat insulating member 14) may be configured to be in contact with and supported by the cold insulating material 39.

Further, in the above embodiment, when the folding container 1 is in the folded state, the short side base portion 5 is configured to form an opening 42 communicating with the cold insulating material accommodating portion 40. Even when the container 1 is in the folded state, the opening 42 is not formed between the short side base portion 5 and the long side side wall portion 6 (locking wall 11). May be good. Although not particularly mentioned in the above embodiment, the short side side wall insulation accommodating portion 17 of the short side side wall portion 7 is set to an upright position among the short side side wall portions 7, so that the folding container 1 can be used. It is extended to a portion that closes the opening 42 formed in the short side base portion 5 when in the folded state.

(D) In the above embodiment, the thickness of the side wall heat insulating members 14 and 15 is substantially the same (slightly thin) as the depth of the side wall heat insulating accommodating portions 16 and 17, and the entire thickness of the side wall heat insulating members 14 and 15 is the side wall portion 6. , 7, but the thickness of the side wall heat insulating members 14 and 15 may be made thicker or thinner than the depth of the side wall heat insulating accommodating portions 16 and 17. However, by making the thicknesses of the side wall heat insulating members 14 and 15 and the depths of the side wall heat insulating accommodating portions 16 and 17 substantially the same, the heat insulating property is improved as much as possible, and the thicknesses of the side wall portions 6 and 7 of the folding container 1 are improved. In addition to further exerting the action and effect of making the side wall heat insulating members 14 and 15 as thin as possible, damage to the side wall heat insulating members 14 and 15 is further suppressed by fitting the entire side wall heat insulating members 14 and 15 inside the side wall heat insulating accommodating portions 16 and 17. can do.

In the above embodiment, the cold insulation material 39 is positioned on the upper surface of the bottom wall component 2 (the bottom wall corresponding portion 30 of the bottom wall heat insulating member 26) when the folding container 1 is in the assembled state. A portion may be provided, or a folding positioning portion for positioning the cold insulating material 39 when the folding container 1 is in the folded state may be provided on the outer surface of the short side side wall portion 7.

Further, the cold insulating material 39 of the above embodiment is not limited to the one that cools the temperature inside the container to a relatively low temperature, and may be a heat insulating material that maintains a relatively high temperature. Further, in the above embodiment, the cold insulating material 39 is accommodated in the folded container 1 in the assembled state so as to be placed on the bottom wall portion 3 (the bottom wall corresponding portion 30 of the bottom wall heat insulating member 26). However, it may be accommodated so as to lean against the inner surface of the side wall portions 7 and 8, or a recess for accommodating the cold insulating material 39 may be provided on the inner surface side of the side wall portions 7 and 8. In the cold insulation material accommodating portion 40 of the above embodiment, it is also possible to accommodate a material other than the cold insulation material 39.

(E) In the above embodiment, the bottom wall component 2, the long side side wall 6, and the short side side wall 7 are made of solid polypropylene, but other resin materials such as polyethylene, PET, and polyamide. It may be composed of. Further, although the side wall heat insulating members 14 and 15 and the bottom wall heat insulating member 26 are made of foamed polypropylene, they may be made of other foamed resin materials such as foamed polyethylene, expanded polystyrene, and foamed polyurethane.

1 ... Folding container, 2 ... Bottom wall component, 3 ... Bottom wall, 4 ... Long side base, 5 ... Short side base, 6 ... Long side side wall, 7 ... Short side side wall, 8 ... long side bearing part, 9 ... short side bearing part, 14 ... long side side wall insulation member, 15 ... short side side wall insulation member, 16 ... long side side wall insulation housing part, 17 ... short side side wall Insulation accommodating part, 18 ... long side surrounding rib, 19 ... short side surrounding rib, 26 ... bottom wall heat insulating member, 30 ... bottom wall corresponding part, 31 ... base corresponding part, 33 ... handle part, 39 ... cold insulation material , 40 ... Cold insulation material accommodating portion, 41 ... Short side support convex portion, 42 ... Opening.

Claims (4)

The bottom wall component, which has a rectangular plate shape in a plan view,
An upright position that stands above each side of the bottom wall component and a laying position that is laid down on the center side of the bottom wall component, corresponding to each side of the bottom wall component. In a container provided with a side wall portion rotatably provided between and
The bottom wall component includes a bottom wall portion having a substantially rectangular plate shape and a base portion projecting upward along each side side portion of the bottom wall portion.
Each of the base portions includes a bearing portion that pivotally supports each of the side wall portions.
The base portion is formed by connecting a pair of first base portions provided along a pair of side sides of the bottom wall portion and both ends of the pair of first base portions, respectively. It is provided with a pair of second bases provided along the side edges of the bottom wall.
The side wall portion includes a pair of first side wall portions connected to each of the first base portions and a pair of second side wall portions connected to each of the second base portions.
The bearing portion of the first base portion is located above the bearing portion of the second base portion.
By setting the pair of the second side wall portions in the laying position, the first side wall portion can be set in the laying position above the second side wall portion.
When all the side wall portions are in the laying position, the cold insulating material can be accommodated between the second side wall portion in the laying position and the first side wall portion in the laying position. A cold insulation material storage unit is provided
When the pair of the first side wall portions are set to the laying position, the pair of first side wall portions are set to the laying position at the same height position, and the area between the pair of the first base portions is abbreviated. The whole is covered with a pair of the first side wall portions from above,
A container characterized in that, in the second base portion, an opening that communicates with the cold insulating material accommodating portion is provided when the second side wall portion is in the laying position. The claim is characterized in that at least one of the pair of the second side wall portions in the laid position extends substantially parallel to the upper surface of the bottom wall portion and is in contact with the bottom wall portion in a surface. The container according to 1. The first side wall portion set to the laying position is in contact with the upper surface of the cold insulation material installed in the cold insulation material accommodating portion or the upper surface of each of the second base portions, and is substantially parallel to the upper surface of the bottom wall portion. The container according to claim 1 or 2, characterized in that it extends. In the container stacking structure using the container according to any one of claims 1 to 3,
Of the side wall portion and the bottom wall component portion, at least a part of each side wall portion is composed of a heat insulating member made of foamed synthetic resin.
A container in which all the side wall portions are in an assembled state in which the standing position is set, and a cold insulating material is housed inside.
It is placed on the upper side of the container in the assembled state, and is in a folded state in which all the side wall portions are in the laid position, and the cold insulation material accommodating portion includes a container in which the cold insulation material is stored. The container stacking structure is characterized by this.

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