JP6649973B2 - Assembling returnable box - Google Patents

Description

  TECHNICAL FIELD The present invention relates to an assembling returnable box, and particularly when an internal foaming material becomes dirty, only the dirty foamed material can be easily replaced, and the assembling type excellent in convenience and added value. About the box.

Conventionally, return boxes and containers have been widely used in factories and the like for transporting and storing parts and the like. In recent years, in a retail business such as a foodstuff, a returnable box made of resin has been used as a container for accommodating and delivering goods.
As described above, the returnable boxes are widely used in various industries, and various returnable boxes have been developed according to applications.

Various techniques related to the present invention have been proposed.
For example, Patent Literature 1 discloses a bottom plate and four side plates, a lower corner material in which four corners of the bottom plate are installed and fixed, and an L-shaped outer wall integrally projecting from an upper corner of each lower corner material. A folding guide hole formed in an elongated shape along the vertical direction on both sides of the outer wall, a vertically-viewable L-shaped vertical frame detachably installed inside the outer wall, and a vertical frame. An upper corner member having a substantially L-shaped flat corner formed with a groove for fitting the upper end and the upper edge corner of the side plate, and at least one pair of side plates protruding from both ends of each side plate, and protruding from both ends of the vertical frame. And a slide revolving shaft that is rotatably and slidably connected to the folding guide hole through the collapsible guide hole. Techniques are disclosed.

Patent Literature 2 discloses a technique of a corner joint for a folding box.
The corner joint has a hook base and a hook receiver, and the hook base forms an edge fitting groove having an inverted U-shaped cross section and the other end of a movable base having a pivot shaft hole. The hook portion vertically extending along the vertical edge of the groove forming side wall has a back surface protruding therefrom, and the hook receiver is formed of a fixing base portion having an edge-fitted fixing groove. A horizontal X-axis in which one end continuous with the groove portion, the back surface of the hook portion of the hook base forms a hook engaging hole, and a horizontal Y-axis direction deviation preventing wall for stacking boxes is erected on the hook base. It is configured to be erected in an L-shape in plan view so as to be continuous with the direction deviation preventing wall.

Further, Patent Document 3 discloses a hollow resin plate formed by laminating a plurality of hollow plate members having a hollow portion, wherein a functional member is sandwiched between the plurality of hollow plate members without being fixed, and is laminated. A technique of a hollow resin plate, wherein movement of the functional member between the plurality of hollow plate members is regulated by covering at least side surfaces of the plurality of hollow plate members and the functional member with a sealing member. Is disclosed.
In this technique, the functional member is at least one of a buffer member, a heat insulating member, a sound insulating member, and an electromagnetic wave shielding member.

Japanese Patent No. 3294556 JP 2001-48168 A JP 2012-45717 A

However, as described above, in a returnable box as a container for storing and delivering goods such as food products, it has been demanded to improve heat insulation and cushioning.
Further, since goods such as groceries are stored, if the returnable box, especially the inside of the returnable box is dirty, deformed or damaged, a bad impression for the user (that is, Impression that it is not handled). For this reason, there is a demand for easy handling of a returnable box, particularly when the cleanliness inside the returnable box is impaired.
Further, it has been demanded that stored items having a shape that cannot be stably placed can be easily and safely stored, thereby improving convenience, added value as a returnable box, and the like.

  The present invention has been proposed in view of the above circumstances, improves heat insulation and cushioning properties, and can easily deal with internal dirt, deformation and breakage, and is excellent in convenience and added value. The purpose is to provide a prefabricated returnable box.

  In order to achieve the above object, the assembling returnable box of the present invention includes a rectangular bottom plate, four rectangular side plates rotatably connected to the bottom plate, and the side plates adjacent to each other in an assembled state. Connecting means for connecting the engaging member attached to the corner of the side plate in the X direction, and the engaged member attached to the corner of the side plate in the Y direction. The engaging member has an engaging member main body attached to the corner portion, an engaging piece rotatably attached to the engaging member main body, and protrudingly provided from the engaging member main body. An engaged member body having an engagement portion, wherein the engaged member is attached to the corner, an engaged portion formed on the engaged member body, and engaged with the engaging piece; , Formed in the engaged member main body and having an engaged hole into which the engaging portion is engaged. That.

  According to the assembling returnable box of the present invention, the heat insulating property and the cushioning property can be improved by the functional member such as the foam material, and the functional member can be stained, damaged or deformed or damaged. In this case, only the functional member can be easily replaced, and the cleanliness and economic efficiency can be improved. Further, it is possible to easily and safely store stored items having a shape that cannot be stably placed, thereby improving convenience, added value as a returnable box, and the like.

FIG. 1 is a schematic perspective view of an assembled returnable box according to one embodiment of the present invention. FIG. 2 is a schematic plan view for explaining a deployed state of the assembled returnable box according to one embodiment of the present invention. FIG. 3 is a schematic plan view for explaining a deployed state of the assembled returnable box according to one embodiment of the present invention from which the foam material has been removed. 4A and 4B are schematic views illustrating an engaging member of the assembled returnable box according to one embodiment of the present invention, wherein FIG. 4A is a front view, and FIG. 4B is a right side view. , (C) shows a top view, (d) shows a rear view, (e) shows a left side view, and (f) shows a bottom view. 5A and 5B are schematic diagrams illustrating the engaged members of the assembled returnable box according to one embodiment of the present invention, wherein FIG. 5A is a front view, and FIG. 5B is a right side view. (C) shows a top view, (d) shows a rear view, (e) shows a left side view, and (f) shows a bottom view. FIG. 6 is a schematic cross-sectional view illustrating a frame of the assembled returnable box according to one embodiment of the present invention. FIG. 7 is a schematic cross-sectional view for explaining a hollow resin plate and a foam material of the assembled returnable box according to one embodiment of the present invention. FIG. 8 is a schematic sectional view for explaining a hollow resin plate and a foam material of the assembled returnable box according to the first application example of the present invention. FIG. 9 is a schematic perspective view for explaining the assembled returnable box according to the second application example of the present invention. FIG. 10 is a schematic perspective view of the assembled returnable box according to the third application example of the present invention. FIGS. 11A and 11B are schematic diagrams illustrating an engaged member of the assembled returnable box according to the third application example of the present invention. FIG. 11A is a front view, and FIG. 11B is a right side view. (C) shows a top view, (d) shows a rear view, (e) shows a left side view, and (f) shows a bottom view. FIGS. 12A and 12B are schematic views illustrating an engaging member of the assembled returnable box according to the third application example of the present invention, wherein FIG. 12A is a front view, and FIG. 12B is a right side view. (C) shows a top view, (d) shows a rear view, (e) shows a left side view, and (f) shows a bottom view.

[One embodiment of assembling returnable box]
1, 2 and 3, the assembling returnable box 1 of the present embodiment comprises a rectangular bottom plate 20 made of a hollow resin plate, and four bottom plates 20 made of a hollow resin plate and rotatably connected to the bottom plate 20. A substantially rectangular side plate 21, 22, 23, 24, connecting means 31, 32, 33, 34 for connecting the adjacent side plates in an assembled state, and a rectangular lid 25 made of a hollow resin plate for a lid. , A bottom plate 20, side plates 21, 22, 23, 24, and a foam member 50, 51, 52, 53, 54, 55 as a functional member detachably attached to the inside of the lid 25.
In the present embodiment, the functional member is a foam material. However, the present invention is not limited to this. For example, various members having a cushioning property, a heat insulating property, a sound insulating property, an electromagnetic wave shielding property, or the like may be used. Good.

(Bottom plate and side plate)
The bottom plate 20 and the side plates 21, 22, 23, 24 are usually formed into a predetermined shape as shown in FIG. 3 from one hollow resin plate.
Here, the hollow resin plate refers to a resin plate having a hollow portion, and examples thereof include a three-layer foam board, a two-layer foam board, a plastic cardboard, and a plastic honeycomb board.
In the present embodiment, as described later, a three-layer bubble board is used (see FIG. 7).
The side plates 21, 22, 23, 24 are connected to the bottom plate 20 via broken lines 26. These broken lines 26 are V-grooves formed by thermal crease processing or the like, and the V-grooves functioning as hinges cause the side plates 21, 22, 23, and 24 to move from the expanded state to the assembled state or from the assembled state to the expanded state. Can be easily rotated.

(Connecting means)
As described above, the assembling returnable box 1 is provided with the connecting means 31, 32, 33, 34 for connecting the adjacent side plates in the assembled state. That is, as shown in FIG. 1 and the like, the connecting means 31 connects the side plate 21 and the side plate 23, the connecting means 32 connects the side plate 21 and the side plate 24, and the connecting means 33 connects the side plate 22 and the side plate 23. And the connecting means 34 connects the side plate 22 and the side plate 24.
In addition, the connecting means 31, 32, 33, 34 are provided at the corners of the engaging members 311, 331, 321, 341 attached to the corners of the side plates 23, 24 in the X direction and at the corners of the side plates 21, 22 in the Y direction. And the engaged members 312, 322, 332, 342 attached. That is, the connecting means 31 has an engaging member 311 attached to the corner of the side plate 23 in the X direction and an engaged member 312 attached to the corner of the side plate 21 in the Y direction. Has an engaging member 321 attached to a corner of the side plate 24 in the X direction, and an engaged member 322 attached to a corner of the side plate 21 in the Y direction. An engaging member 331 attached to a corner of the side plate 23 and an engaged member 332 attached to a corner of the side plate 22 in the Y direction are provided. And an engaged member 342 attached to a corner of the side plate 22 in the Y direction.
In the present embodiment, the side plates 23 and 24 are referred to as X direction side plates 23 and 24 for convenience, and the side plates 21 and 22 are referred to as Y direction side plates 21 and 22 for convenience.

Next, the engaging member 311 and the engaged member 312 will be described with reference to the drawings.
4, an engaging member 311 includes an engaging member main body 3110 attached to a corner of the side plate 23, an engaging piece 3113 rotatably attached to the engaging member main body 3110, and an engaging member main body. It has an engagement portion 3118 protruding from 3110.
When viewed from the front side, the engaging member main body 3110 has a substantially hook shape with a notch formed in the upper part, and a rotating shaft 3119 for pivotally supporting the engaging piece 3113 is formed on the upper surface of the notch. The engaging member main body 3110 has a sandwiching plate 3111 formed on the front side and a sandwiching plate 3112 formed on the back side. The corner of the side plate 23 is press-fitted between the sandwiching plate 3111 and the sandwiching plate 3112. As a result, the engagement member 311 is attached to the side plate 23.

In addition, the engaging member main body 3110 is provided with an engaging portion 3118 projecting from the left side surface into the engaged hole 3124 of the engaged member 312. Thereby, when the engagement member 311 and the engaged member 312 are connected, the connection strength in the X direction and the vertical direction can be significantly improved.
Furthermore, the engaging member main body 3110 has a substantially rectangular flat cover plate 3115 on the back surface that covers the corner end surface of the foam material 53 and on which the lid 25 is placed.

The engaging piece 3113 has a notch formed at one end to engage with the rotating shaft 3119, and an engaging portion 3114 engaging with the engaged portion 3123 of the engaged member 312 at the other end. Is molded. In addition, the cross-sectional shape of the central portion is a groove shape in order to save material.
When the engaging piece 3113 is rotated so as to be tilted horizontally from the standing state, the engaging portion 3114 engages with the engaged portion 3123, and the engaging member 311 and the engaged member 312 Are linked.

  Here, preferably, the engagement member 311 is provided with frame engagement portions 3116 and 3117 that engage with the grooves of the adjacent frames 44 and 42. That is, the engaging member main body 3110 has a frame engaging portion 3116 which engages with a groove of a frame 44 described later on the upper right side surface, and a groove of a frame 42 described later on the lower surface on the left side. It is preferable that a frame engaging portion 3117 that engages with the projection is provided. By doing so, the engagement member main body 3110 connects the frame 44 and the frame 42, so that the mechanical strength of the side plate 23 can be further improved.

In FIG. 5, an engaged member 312 includes an engaged member main body 3120 attached to a corner of the side plate 21, and an engaged portion formed on the engaged member main body 3120 and engaged with the engaging piece 3113. 3123 and an engaged hole 3124 formed in the engaged member main body 3120 and engaged by the engaging portion 3118.
When viewed from the front side, the engaged member main body 3120 has a substantially hook shape with a notch formed in the upper portion, and an engaged portion 3123 protrudes from the upper surface of the notch. Also, the engaged member body 3120 has a sandwiching plate 3121 formed on the front side and a sandwiching plate 3122 formed on the back side. By being press-fitted, the engaged member 312 is attached to the side plate 21.

The engaged member main body 3120 has, on the back surface, an engaged hole 3124 into which the engaging portion 3118 of the engaging member 311 is engaged. Thereby, when the engaged member 312 and the engaging member 311 are coupled, the coupling strength in the X direction and the vertical direction can be significantly improved.
Further, the engaged member main body 3120 has a substantially rectangular flat cover plate 3125 on the back surface, which covers the corner end surface of the foam material 51 and on which the lid 25 is placed.

The engaged portion 3123 is a substantially rectangular flat plate, and a convex portion engaging with the engaging portion 3114 is formed on the upper front side.
When the engaged portion 3123 is rotated so that the engaging piece 3113 is tilted horizontally from the standing position, the convex portion of the engaged portion 3123 is slightly elastically deformed and the engaging portion 3123 is engaged. And the engaging member 311 and the engaged member 312 are connected.

  Here, preferably, the engaged member 312 is provided with frame engaging portions 3126 and 3127 that engage with the grooves of the adjacent frames 43 and 41. That is, the engaged member main body 3120 has a frame engaging portion 3126 projecting into a groove of a frame 43 to be described later protruding from a left side surface of the upper portion, and a frame 41 of a frame 41 to be described later protruding from a lower surface on the right side. It is preferable that a frame engaging portion 3127 that engages with the groove is protruded. With this configuration, the engaged member main body 3120 connects the frame 43 and the frame 41, so that the mechanical strength of the side plate 21 can be further improved.

  Although the connecting means 31 has been described, the connecting means 32, 33, and 34 have substantially the same components as the connecting means 31 (however, the directions of the respective components are different). , And a detailed description thereof will be omitted.

(flame)
The side plates 21, 22, 23, and 24 are respectively joined to the three ends, and have three frames having a groove-shaped cross section, and each of the frames is a foam material engaging member that locks the foam material. The stop is integrally formed. That is, as shown in FIG. 3, the side plates 21 and 22 have frames 41, 42 and 43, respectively, and the side plates 23 and 24 have frames 41, 42 and 44, respectively.

Next, the frames 44, 41 and 42 will be described with reference to the drawings.
In FIG. 6A, the frame 44 includes an elongated flat plate 441 for the outer surface, a plate 442 for the end surface, a plate 443 for the inner surface, a protruding plate 444, and a locking portion 445 for foam material. It is integrally molded by molding. In this frame 44, an outer surface plate 441 and an inner surface plate 443 are opposed to each other, and their upper portions are connected by an end surface plate 442. The section 445 is connected, and a foam locking section 445 extending downward is connected to the tip of the foam locking section 445.
Here, the outer surface plates 441, 442, 443 have a substantially groove-shaped cross-section, and the upper portion of the side plate 23 is fitted into this groove. The frame engaging portion 3116 of 311 is fitted. Thereby, the frame 44 can improve the mechanical strength of the side plate 23. The frame 44 and the like are usually firmly attached to the side plate 23 by press-fitting, local welding, double-sided tape, or the like.

  Further, the locking portion 445 for the foam material is connected to the inner surface plate 443 via the protruding plate 444. The corners of the foam locking portion 445 are chamfered, and the protruding plate 444 is easily elastically deformed. Therefore, when the foam material 53 is attached, when the foam material 53 is moved in a direction substantially perpendicular to the outer surface plate 441, the protruding plate 444 is elastically deformed (the foam material 53 is also elastically deformed), and subsequently. When the protruding plate 444 is restored, the foam locking member 445 locks the foam 53. Thus, the foam material 53 can be easily attached to the side plate 23 by the foam material locking portion 445. Further, when the foaming material 53 is removed, if the protruding plate 444 is deformed upward, the locking of the locking portion 445 for the foaming material is released, so that the foaming material 53 can be easily removed.

Further, the protruding plate 444 covers the upper portion of the foam material 53, and the lid 25 is placed thereon.
Here, since the lid 25 comes into contact with the protruding plate 444, dust and the like are prevented from entering the inside of the assembling returnable box 1 from the outside. In addition, by setting the foam material 55 and the foam material 53 close to each other (usually a state separated by 1 to 3 mm), the heat insulation and the like can be improved.

  In FIG. 6B, the frame 41 includes an elongated flat plate 411 for the outer surface, a plate 412 for the end surface, a plate 413 for the inner surface, a protruding plate 414, and a locking portion 415 for the foam material. And an elongated flat plate 421 for the outer surface, a plate 422 for the end surface, a plate 423 for the inner surface, a protruding plate 424 and a locking portion 425 for the foam material. The frames 41 and 42 and the frame 43 (not shown) have a different length from the frame 44, but the other structure is substantially the same as the frame 44. Therefore, as described above, the foam members 51, 52, 53, 54 can be easily attached and detached by the frames 41, 42, 43, 44.

Further, the side portion of the side plate 21 is fitted into the groove formed by the outer surface plates 411, 412, 413, and although not shown, the frame engaging portion 3127 of the engaged member 312 as described above. Is inserted. Thereby, the frame 41 can improve the mechanical strength of the side plate 21.
In addition, the side portion of the side plate 23 is fitted into the groove formed by the outer surface plates 421, 422, and 423. Although not shown, as described above, the frame engagement portion 3117 of the engagement member 311 is It is inserted. Thereby, the frame 42 can improve the mechanical strength of the side plate 23.

Further, in the assembled state, the end surface plate 412 contacts the inner surface plate 423 and the protruding plate 414 contacts the foam material locking portion 425, so that dust and the like are generated inside the assembly type return box 1 from outside. Prevent intrusion. In addition, by bringing the foamed material 51 and the foamed material 53 close to each other (usually, a state separated from each other by 1 to 3 mm), heat insulation and the like can be improved.
Furthermore, since the frames 41, 42, 43, and 44 are usually manufactured by extrusion using the same mold (also referred to as a die), the manufacturing cost can be reduced.

(Foam material)
The foam materials 50, 51, 52, 53, 54, and 55 have a rectangular flat plate shape formed into a predetermined size, and are made of a synthetic resin foam such as polystyrene.
The foam material 51 and the foam material 52 have the same shape and the same size and thickness. The foam material 53 and the foam material 54 have the same shape and the same size and thickness. 55 has substantially the same shape and substantially the same size and thickness.
As described above, the foam materials 51, 52, 53, and 54 are attached to the side plates 21, 22, 23, and 24 by being locked by the foam locking portions 415, 425, and 445 (FIG. 6). The foam materials 50 and 55 are usually attached to the bottom plate 20 and the lid 25 by a double-sided tape (not shown) or the like.

In this embodiment, since the three-layer foam boards are used as the side plates 21, 22, 23, and 24, the foam materials 51, 52, 53, and 54 are attached, for example, as shown in FIG. Can be FIG. 7 illustrates the side plate 23 and the foam material 53.
In FIG. 7, the hollow resin plate of the side plate 23 includes a cap sheet 231 on which a plurality of caps 233 bulging in a hollow shape are formed, a back sheet 232 to which the bottom of the cap 233 is fused, and a top 234 of the cap 233. And a liner sheet 235 to which is fused. As described above, the frames 41 and 42 are attached to the side plate 23, and the foam material 53 is detachably attached to the side plate 23 by sliding.

(lid)
As described above, the lid 25 has a rectangular shape and is made of a hollow resin plate for a lid.
Here, the hollow resin plate for a lid refers to a resin plate having a hollow portion, and examples thereof include a three-layer foam board, a two-layer foam board, a plastic cardboard, and a plastic honeycomb board. The reason for adding “for lid” is that the bottom plate 20 and the side plates 21, 22, 23, 24 are usually formed from a single hollow resin plate into a predetermined shape, and a hollow resin plate having the same structure (for example, This is because the lid 25 may be a hollow resin plate having a different structure (for example, a three-layer foam board), as opposed to a two-layer foam board described later.
The lid 25 of the present embodiment has a cross-sectional structure, which is not shown, but includes a cap sheet in which a plurality of caps bulging in a hollow shape are formed, and a back sheet and a liner sheet stacked so as to sandwich the cap sheet. And a tape fused to the end face. This tape is fused to the end face by the end face sealing processing, so that waterproofness and aesthetics can be improved.

As shown in FIG. 1, a foam material 55 is detachably attached to the inside of the lid 25.
In this way, also in the lid 25, the heat insulating property and the cushioning property can be improved by the foam material 55, and when the foam material 55 becomes dirty or damaged, only the foam material 55 can be replaced. It can improve cleanliness and economic efficiency.
In the present embodiment, as shown in FIG. 6A, the lid 25 is placed on the protruding plate 444 or the like. In this case, the positioning of the lid 25 is reliably performed by the inner surface plate 443 or the like. Since it is not necessary to form a part for positioning on the lid 25, the structure can be simplified.
The lid 25 is not limited to the above structure. For example, although not shown, the lid 25 may be placed on the end face plate 442 or the like.
Further, the lid 25 is a lid that is lifted upward, but is not limited to this. For example, although not shown, a lid rotatably connected to the side plate may be used.

Next, the operation of the assembled returnable box 1 having the above configuration will be described.
As shown in FIG. 1, in the assembled returnable box 1, the accommodation space is surrounded by the foam materials 50, 51, 52, 53, 54, and 55, so that the heat insulating property and the cushioning property can be improved. Thereby, the assembled returnable box 1 is effective as a returnable box for storing and delivering goods such as food.
In addition, when storing the assembling returnable box 1, the connecting means 31, 32, 33, and 34 are released so as to be expanded as shown in FIG. 2 and stored in a stacked state. Therefore, space can be saved. Further, the connection can be released by an easy operation such as turning the engagement piece 3113 upward, so that usability can be improved.

In addition, when the foamable materials 50, 51, 52, 53, 54, 55 are stained or damaged by deformation, breakage, or the like, the foamable materials 50, 51, 52, 53 are used. , 54, 55 can be easily replaced.
That is, for example, when replacing the soiled foam material 53, first, the connection means 31 and 33 are disconnected, the side plate 23 is unfolded, and the projecting plates 444, 424 and 414 are bent in the direction in which they are expanded. By releasing the locking by the locking portions 445, 425, and 415, only the foam material 53 can be easily removed. Further, when a new or normal foam material 53 is pressed from above, the protruding plates 444, 424, and 414 are elastically deformed in the expanding direction, and then the foam material locking portions 445, 425, and 415 are almost automatically moved to the side plates. 23 is locked. Next, the side plate 21 is turned upright to connect the connecting means 31 and 33. That is, in the assembled returnable box 1, the dirty foam material 53 can be easily and quickly replaced.
The foam materials 52, 53, and 54 can be replaced in substantially the same manner as the foam material 51.

When the foam materials 50 and 55 are replaced, they are usually joined by a double-sided tape or the like. Therefore, the foam materials 50 and 55 are removed against the adhesive strength of the double-sided tape, and a new double-sided tape is attached. Can be used to attach the foam material 50,55.
As described above, in the prefabricated returnable box 1, only the foam materials 50, 51, 52, 53, 54, and 55 can be replaced easily and in a short time, so that the cleanliness and economy are improved. be able to.
Further, the assembling returnable box 1 can connect the connecting means 31 and the like by an easy operation such as rotating the engaging piece 3113 and the like, and can release the connection, thereby improving workability. Can be

As described above, according to the assembling returnable box 1 of the present embodiment, the heat insulating property and the cushioning property can be improved by the foam material, and the foam material is damaged, such as being stained, deformed or damaged. In such a case, only the foam material can be easily replaced, and cleanliness and economic efficiency can be improved.
Further, the present embodiment has various application examples.
Next, an application example of the present embodiment will be described with reference to the drawings.

<First application example of assembled returnable box>
In FIG. 8, the assembled returnable box of this application example is different from the above-described assembled returnable box 1 in that the cap sheet 231 in which the hollow resin plate of the side plate 23 is formed with a plurality of caps 233 bulging in a hollow shape. And a liner sheet 232 to which the top portion 234 of the cap 233 is fused, and a cap engaging portion 531 for engaging the foam material 53 with the cap 233 is protruded at least at a predetermined position. The points are different. The other configuration of this application example is almost the same as that of the assembled returnable box 1.
Therefore, in FIG. 8, the same components as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof will be omitted.

In the side plate 23 of this application example, the hollow portion of the cap 233 is exposed, and a cap engaging portion 531 for engaging the cap 233 protrudes at a position corresponding to the predetermined cap 233. Have been. In this application example, two cap engaging portions 531 are protruded near the frames 41 and 42, respectively. In this way, when the side plate 23 is unfolded or when the side plate 23 is assembled, a problem that the foam material 53 moves in the direction of the foam material 50 is reliably prevented. Can be securely mounted.
Since the foam material 53 is also positioned by the protruding plate 444 of the frame 44, the protruding plate 414 of the frame 41, and the protruding plate 424 of the frame 42, the number of the cap engaging portions 531 may be one or more. Also, the position at which the projection is provided is not limited to the above.

In this application example, although not shown, the bottom plate 20 and the side plates 21, 22, and 24 are formed as a two-layer foam board including a cap sheet 231 and a back sheet 232, similarly to the side plate 23. As in the case of the foam material 53, a cap engaging portion 531 for engaging the cap 233 is protruded at at least a part of the foam material 51, 52, 54 in the same manner as the foam material 53.
In this manner, the foamed materials 51, 52, and 54 can exert substantially the same effect as the foamed material 53, and the foamed material 50 can easily and accurately position the bottom plate 20. This can be performed in a short time, and it is not necessary to bond the foam material 50 to the bottom plate 20 with a double-sided tape, so that the workability and the like can be greatly improved.
In the foam material 50, one or two or more cap engaging portions 531 protrude, respectively, near two diagonal corners, although not shown.

  As described above, the assembled returnable box of this application example has substantially the same effect as the assembled returnable box 1 of the above-described embodiment, and the foam materials 51, 52, 53, and 54 move in the direction of the foam material 50. In addition, it is possible to reliably prevent such troubles as to occur, and to reliably attach the foam members 51, 52, 53, 54 to the side plates 21, 22, 23, 24. Furthermore, in the foam material 50, the positioning with respect to the bottom plate 20 can be performed easily, accurately, and in a short time, and the workability and the like can be greatly improved.

<Second application example of assembled returnable box>
In FIG. 9, the assembled returnable box 1 a of this application example is different from the above-described assembled returnable box 1 in that a foam material 50 a is used instead of the foam material 50. The other configuration of this application example is almost the same as that of the assembled returnable box 1.
Therefore, in FIG. 9, the same components as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof will be omitted.

The foam material 50a of this application example has a substantially rectangular parallelepiped shape (for example, a thickness of about 10 cm), and a plurality of holes 501 (for example, a hole depth of about 8 cm) is formed in a lattice shape on the upper surface. . A test tube (not shown) as a storage object is inserted into these holes 501.
With this configuration, a test tube having a shape that cannot be stably placed can be easily and safely stored. In addition, many test tubes can be efficiently stored in close proximity, and when storing and removing the test tubes, each side plate 21, 22, 23, and 24 can be deployed, improving the workability of taking in and out. Can be done. That is, convenience and added value as a returnable box can be improved.

In addition, in this application example, the configuration is such that the foam material 50a in which the plurality of holes 501 are formed is used, but the present invention is not limited to this. For example, although not shown, the foaming material may have a shape corresponding to at least a part of the shape of the stored item, or may have a configuration having a partition portion for storing a plurality of the stored items in a partitioned state.
In addition, the foamed material having the above-described shape and partition portion is usually a foamed material corresponding to the bottom plate, but may be a foamed material corresponding to the side plate.

  As described above, the assembled returnable box 1a of this application example has substantially the same effect as the assembled returnable box 1 of the above-described embodiment, and can easily and stably store stored items having a shape that cannot be stably placed. It can be stored safely, and convenience and added value as a returnable box can be improved.

<Third application example of assembly type returnable box>
In FIG. 10, the assembled returnable box 1b of this application example has connection means 31b, 32b, 33b, and 34b instead of the connection means 31, 32, 33, and 34, as compared with the above-described assembled returnable box 1. The points are different. The other configuration of this application example is almost the same as that of the assembled returnable box 1.
Therefore, in FIG. 10, the same components as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof will be omitted.

(Connecting means)
As described above, the assembling returnable box 1b is provided with the connecting means 31b, 32b, 33b and 34b for connecting the adjacent side plates in the assembled state. That is, as shown in FIG. 10, the connecting means 31b connects the side plate 21 and the side plate 23, the connecting means 32b connects the side plate 21 and the side plate 24, and the connecting means 33b connects the side plate 22 and the side plate 23. And the connecting means 34b connects the side plate 22 and the side plate 24.
Further, the connecting means 31b, 32b, 33b, 34b are provided with the engaged members 311b, 331b, 321b, 341b attached to the corners of the side plates 23, 24 in the X direction, and the corners of the side plates 21, 22 in the Y direction. And the engaging members 312b, 322b, 332b, and 342b attached to the main body. That is, the connecting means 31b has an engaged member 311b attached to the corner of the side plate 23 in the X direction and an engaging member 312b attached to the corner of the side plate 21 in the Y direction. Has an engaged member 321b attached to a corner of the side plate 24 in the X direction and an engaging member 322b attached to a corner of the side plate 21 in the Y direction. An engaging member 331b attached to a corner of the side plate 23 and an engaging member 332b attached to a corner of the side plate 22 in the Y direction are provided. And an engaging member 342b attached to a corner of the side plate 22 in the Y direction.
In this application example, the side plates 23 and 24 are conveniently referred to as X direction side plates 23 and 24, and the side plates 21 and 22 are conveniently referred to as Y direction side plates 21 and 22.

Next, the engaged member 311b and the engaging member 312b will be described with reference to the drawings.
11, an engaged member 311b is formed on the engaged member main body 3110b attached to the corner of the side plate 23, and engages with the engaging piece 3123b (see FIG. 12). The engaging portion 3113b and the engaging portion 3118 protruding from the engaged member body 3110b and engaging with the engaged hole 3124 (see FIG. 12).
The engaged member body 3110b has a substantially hook shape when viewed from the front side, and an engaged portion 3113b having a substantially hook shape when viewed from the front side is protruded from an upper left side surface. The engaged member main body 3110b has a sandwiching plate 3111 formed on the front side and a sandwiching plate 3112 formed on the back side. The corner of the side plate 23 is located between the sandwiching plate 3111 and the sandwiching plate 3112. The engaged member 311b is attached to the side plate 23 by being press-fitted.

Further, the engaged member main body 3110b has, on the left side surface, an engaging portion 3118 which is engaged with the engaged hole 3124 of the engaging member 312b. Thereby, when the engaged member 311b and the engaging member 312b are connected, the connection strength in the X direction and the vertical direction can be significantly improved.
Further, the engaged member main body 3110b is provided with a substantially rectangular flat cover plate 3115 on the back surface, which covers a corner end surface of the foam material 53 and on which the lid 25 is placed.

  Here, preferably, the engaged member 311b is provided with frame engaging portions 3116, 3117 that engage with the grooves of the adjacent frames 44, 42. That is, the engaged member main body 3110b has a frame engaging portion 3116 that engages with the groove of the frame 44 on the upper right side surface, and engages with the groove of the frame 42 on the lower surface on the left side. It is preferable that a frame engaging portion 3117 to be provided protrudes. In this way, the engaged member main body 3110b connects the frame 44 and the frame 42, so that the mechanical strength of the side plate 23 can be further improved.

12, the engaging member 312b includes an engaging member main body 3120b attached to a corner of the side plate 21, an engaging piece 3123b slidably attached to the engaging member main body 3120b, and an engaging member main body 3120b. And has an engaged hole 3124 into which the engaging portion 3118 is engaged.
When viewed from the front side, the engaging member main body 3120b has a substantially hook shape with a notch formed on the upper right side, and a slide convex portion 3128 is projected from the upper surface of the notch. By engaging with the projection 3128 for use, it is slidably attached to the engagement member main body 3120b. The engaging member main body 3120b has a holding plate 3121 formed on the front side and a holding plate 3122 formed on the back side. The corner of the side plate 21 is press-fitted between the holding plate 3121 and the holding plate 3122. As a result, the engagement member 312b is attached to the side plate 21.

The engaging member main body 3120b has, on the rear surface, an engaged hole 3124 into which the engaging portion 3118 of the engaged member 311b is engaged. Thereby, when the engaging member 312b and the engaged member 311b are connected, the connecting strength in the X direction and the vertical direction can be significantly improved.
The engaging member main body 3120b has a substantially rectangular flat plate-shaped cover plate 3125 on the back surface, which covers a corner end surface of the foam material 51 and on which the lid 25 is placed.
Further, the engaging member main body 3120b and the sliding convex portion 3128 have a concave portion 3129 on the back side and at a position corresponding to the engaged portion 3113b.

  Here, preferably, the engagement member 312b is provided with frame engagement portions 3126, 3127 that engage with the grooves of the adjacent frames 43, 41. That is, the engaging member main body 3120b has a frame engaging portion 3126 that engages with the groove of the frame 43 on the upper left side surface, and engages with the groove of the frame 41 on the lower surface on the right side. It is preferable that a frame engaging portion 3127 is protruded. By doing so, the engagement member main body 3120b connects the frame 43 and the frame 41, so that the mechanical strength of the side plate 21 can be further improved.

The engaging piece 3123b is formed on the left side surface and the lower surface with a concave portion into which the sliding convex portion 3128 is engaged. By this engaging, the engaging piece 3123b can slide in the left and right direction by a predetermined distance. The piece 3123b does not easily come off the slide projection 3128.
When connecting the engaged member 311b to the engaging member 312b, first, the engaging piece 3123b is moved to the right, and then the engaged portion 311b is engaged with the concave portion 3129. To the left. Thereby, the engaging piece 3123b is engaged with the engaged portion 3113b, and the engaged member 311b and the engaging member 312b are connected.

  Although the connecting means 31b has been described, the connecting means 32b, 33b, and 34b have substantially the same components as the connecting means 31b (however, the directions of the respective components are different). , And a detailed description thereof will be omitted.

  As described above, the assembled returnable box 1b of this application example has substantially the same effect as the assembled returnable box 1 of the above-described embodiment, and can be configured to slide the engagement piece 3123b. The degree of freedom, convenience, and added value as a return box can be improved.

As described above, the preferred embodiment and the like of the assembled returnable box of the present invention have been described. However, the assembled returnable box according to the present invention is not limited to only the above-described embodiment and the like, and the scope of the present invention is not limited thereto. It goes without saying that various modifications can be made.
For example, the foam material 55 is attached using a double-sided tape or the like as described above, but is not limited thereto. Although not shown, a member corresponding to, for example, the above-described protruding plate 444 and the locking portion 445 for foam material may be provided on the lower surface of the lid 25. By doing so, the replacement of the foam material 55 can be performed easily and in a short time, similarly to the side plate 21 and the like.

  Further, the foam materials 50, 51, 52, 53, and 54 are provided as independent components, but are not limited thereto. For example, although not shown, the foam materials 50, 51, 52, 53, and 54 are provided. May be connected by a film. In this way, when all of the foamed materials 50, 51, 52, 53, 54 are replaced, they can be handled as one connected part, and workability and the like can be improved.

  Further, although not shown, a slope inclined downward at 45 ° is formed at an edge of the foam material 50, and a slope that abuts or faces the slope is formed below the foam material 51, 52, 53, 54. It may be formed. By doing so, the gap is reduced, and the heat insulation and the like can be improved.

1, 1a, 1b Assembling returnable box 20 Bottom plate
21, 22, 23, 24 Side plate 25 Lid 26 Folding lines 31, 31b, 32, 32b, 33, 33b, 34, 34b Connecting means 41, 42, 43, 44 Frames 50, 50a, 51, 52, 53, 54, 55 Foam 231 Cap sheet 232 Liner sheet 233 Cap 234 Top 235 Liner sheet 311, 321, 331, 341 Engaging member 312b, 322b, 332b, 342b Engaging member 312, 322, 332, 342 Engaged member 311b, 321b, 331b, 341b Engaged members 411, 421, 441 Plates for outer surface 412, 422, 442 Plates for end surface 413, 423, 443 Plates for inner surface 414, 424, 444 Projection plate 415, 425, 445 Locking portion 501 for foam material Hole 531 Engagement part 3110, 3120b for cap Engaging member Body 3111, 3112 Holder plate 3113, 3123b Engagement piece 3114 Engagement part 3115 Cover plate 3116, 3117 Engagement part 3118 for frame Engagement part 3119 Rotating shaft 3120, 3110b Engaged member main body 3121, 3122 Holder plate 3123, 3113b Cover Engagement part 3124 Engagement hole 3125 Cover plate 3126, 3127 Engagement part 3128 for frame Sliding projection 3129 Depression

Claims (6)

A rectangular bottom plate,
Four rectangular side plates rotatably connected to the bottom plate,
Connecting means for connecting adjacent side plates in an assembled state;
A rectangular lid,
With
The coupling means has an engaging member attached to a corner of the side plate in the X direction, and an engaged member attached to a corner of the side plate in the Y direction,
The engaging member includes an engaging member main body attached to the corner, an engaging piece rotatably attached to the engaging member main body, and an engaging portion protruding from the engaging member main body. Have
The engaged member main body attached to the corner portion, the engaged portion formed on the engaged member main body, and engaged with the engaging piece, and the engaged member Formed in the main body, has an engaged hole into which the engaging portion is engaged,
Each of the side plates is joined to an end of each of the three sides, and has three frames each having a groove-shaped cross section,
The coupling means covers a corner end surface of a plate-shaped member disposed inside the side plate, and has a cover plate protruding horizontally so that the lid can be placed thereon,
Of each of the frames , a frame joined to an end of an upper side of the side plate covers an upper portion of a plate-shaped member disposed inside the side plate, and is horizontally mounted so that the lid can be placed thereon. A protruding plate protruding from
The assembly type return box, wherein the protruding plate includes a locking portion capable of holding a plate-shaped member disposed inside the side plate. A rectangular bottom plate,
Four rectangular side plates rotatably connected to the bottom plate,
Connecting means for connecting adjacent side plates in an assembled state;
A rectangular lid,
With
The coupling means has an engaging member attached to a corner of the side plate in the Y direction, and an engaged member attached to a corner of the side plate in the X direction,
The engaging member includes an engaging member main body attached to the corner portion, an engaging piece slidably attached to the engaging member main body, and an engaged hole formed in the engaging member main body. Have
The engaged member main body attached to the corner portion, the engaged portion formed on the engaged member main body, and engaged with the engaging piece, and the engaged member It has an engaging portion which is protruded from the main body and engages with the engaged hole,
Each of the side plates is joined to an end of each of the three sides, and has three frames each having a groove-shaped cross section,
The coupling means covers a corner end surface of a plate-shaped member disposed inside the side plate, and has a cover plate protruding horizontally so that the lid can be placed thereon,
Among the frames , a frame joined to an end of an upper side of the side plate covers an upper portion of a plate-shaped member disposed inside the side plate, and is horizontally oriented such that the lid can be placed thereon. Has a protruding plate protruding from
The assembly type return box, wherein the protruding plate includes a locking portion capable of holding a plate-shaped member disposed inside the side plate.   The assembly-type doorway according to claim 1, wherein each of the engagement members and each of the engaged members are provided with a frame engagement portion that engages with a groove of the adjacent frame. box.   The assembled bottomable box according to any one of claims 1 to 3, wherein the bottom plate, the side plate, or the lid is formed of a hollow resin plate.   The hollow resin plate is a bubble board having a cap sheet in which a plurality of caps bulging in a hollow shape are formed, and a liner sheet to which a top of the cap is fused. The assembling returnable box described.   The hollow resin plate is a bubble board having a cap sheet in which a plurality of caps bulging in a hollow shape are formed, and a back sheet and a liner sheet laminated so as to sandwich the cap sheet. The assembled returnable box according to claim 4.

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