JP2018087040A - Assembly type returnable box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an assembly type returnable box which can improve the heat insulating property and the cushioning property, additionally can easily cope with inner contamination, deformation and breakage, etc. and is excellent in convenience and added value.SOLUTION: An assembly type returnable box 1 comprises: a rectangular bottom plate 20 made of a hollow resin plate; four rectangular side plates 21, 22, 23 and 24 composed of hollow resin plates and rotatably connected to the bottom plate 20; connecting means 31, 32, 33 and 34 for connecting the adjacent side plates in an assembled state; a rectangular lid 25 made of a hollow resin plate for the lid; and foam materials 50, 51, 52, 53, 54 and 55 which are detachably attached to the inner sides of the bottom plate 20, the side plates 21, 22, 23 and 24, and the lid 25.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an assembly-type returnable box, and in particular, when the foamed material inside becomes dirty, only the dirty foamed material can be easily replaced, and the assembly-type returnable with excellent convenience and added value. Regarding the box.

Conventionally, returnable boxes and containers have been widely used for transporting and storing parts and the like in factories and the like. In recent years, resin-made returnable boxes have been used as containers for storing and delivering commodities in the retail industry such as food products.
As described above, returnable boxes are widely used in various industries, and various returnable boxes have been developed depending on the application.

Various techniques related to the present invention have been proposed.
For example, Patent Document 1 discloses a bottom plate and four side plates, a lower corner material in which the four corners of the bottom plate are installed and fixed, and an L-shaped outer wall in plan view that is integrally projected at the upper corner portion of each lower corner material. A folding guide hole formed in a long hole shape along the vertical direction on both sides of the outer wall portion, an L-shaped vertical frame that is detachably erected on the inner side of the outer wall portion, and a vertical frame The upper corner material having a groove portion that fits the upper edge and the upper edge corner of the side plate is a substantially L-shaped upper corner material, and the side plate protrudes from both ends of at least a pair of parallel side plates, and the lower part of the vertical frame. And a slide turnover shaft that pivotally and slidably connects to the folding guide hole through the folding guide hole, and the lower part of each side plate is pivotally connected to the outer wall portion by the slide turnover shaft. Technology is disclosed.

Patent Document 2 discloses a technique of a corner joint for a folding box.
This corner joint has a hook base and a hook receiver, and the hook base is formed with an edge fitting groove having an inverted U-shaped cross section, and the other end of the movable base having a pivot shaft hole. The hook portion that hangs down along the vertical edge of the groove-forming side wall has a configuration in which the back surface protrudes, and the hook receiver is formed of the fixing base portion in which the edge fitting fixing groove is formed. A horizontal X-axis that is one end continuous with the groove, the back surface of the hook portion of the hook base forming a hook engaging hole, and a horizontal Y-axis misalignment prevention wall at the time of stacking the box standing on the hook base The configuration is such that it is erected in an L shape in plan view so as to be continuous with the direction deviation prevention wall.

Further, Patent Document 3 is a hollow resin plate formed by laminating a plurality of hollow plate members having a hollow portion, and is sandwiched between the plurality of hollow plate materials without being stuck to the functional member. A hollow resin plate technique characterized by restricting movement of the functional member between the plurality of hollow plate members 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 commodities such as food, it has been desired to improve heat insulation and buffering properties.
In addition, because it contains items such as groceries, if the returnable box, especially the inside of the returnable box, is dirty, deformed, or damaged, the user may have a negative impression (ie, There was a risk of giving an impression that it was not handled. For this reason, there has been a demand for easily dealing with a returnable box, particularly when the cleanliness inside the returnable box is impaired.
In addition, there has been a demand for easy and safe storage of storage items that cannot be stably placed, and improving convenience and added value as a returnable box.

  The present invention has been proposed in view of the above circumstances, improves heat insulation and buffering properties, and can easily cope with internal dirt, deformation, breakage, etc., and is excellent in convenience and added value. The purpose is to provide an assembly-type returnable box.

  To achieve the above object, the assembly type returnable box according to 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 the assembled state. A 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 engagement member main body attached to the corner, the engagement piece rotatably attached to the engagement member main body, and the engagement member main body protruding from the engagement member main body. An engaged member main body attached to the corner, the engaged member formed on the engaged member main body and engaged with the engaging piece; The engagement member is formed in the engaged member main body, and has an engaged hole into which the engaging portion is engaged. That.

  According to the assembly type returnable box of the present invention, it is possible to improve the heat insulating property and the shock absorbing property by the functional member such as the foam material, and the functional member is soiled or damaged such as deformation or breakage. In this case, only the functional member can be easily replaced, and the cleanliness and economy can be improved. Furthermore, storage items having a shape that cannot be stably placed can be stored easily and safely, and convenience and added value as a returnable box can be improved.

FIG. 1: has shown the schematic perspective view of the assembly-type returnable box concerning one Embodiment of this invention. FIG. 2: has shown the schematic plan view for demonstrating the expansion | deployment state of the assembly-type returnable box concerning one Embodiment of this invention. FIG. 3: has shown the schematic plan view for demonstrating the expansion | deployment state which removed the foaming material of the assembly-type returnable box concerning one Embodiment of this invention. FIG. 4 is a schematic diagram for explaining an engaging member of the assembly type returnable box according to the embodiment of the present invention, in which (a) shows a front view and (b) shows a right side view. , (C) shows a top view, (d) shows a back view, (e) shows a left side view, and (f) shows a bottom view. FIG. 5 is a schematic diagram for explaining an engaged member of the assembly type returnable box according to the embodiment of the present invention, in which (a) shows a front view and (b) shows a right side view. (C) is a top view, (d) is a back view, (e) is a left side view, and (f) is a bottom view. FIG. 6: has shown schematic sectional drawing for demonstrating the frame of the assembly-type returnable box concerning one Embodiment of this invention. FIG. 7: has shown schematic sectional drawing for demonstrating the hollow resin board and foam material of the assembly-type returnable box concerning one Embodiment of this invention. FIG. 8: has shown schematic sectional drawing for demonstrating the hollow resin board and foam material of the assembly-type returnable box concerning the 1st application example of this invention. FIG. 9: has shown the schematic perspective view for demonstrating the assembly-type returnable box concerning the 2nd application example of this invention. FIG. 10: has shown the schematic perspective view of the assembly-type returnable box concerning the 3rd application example of this invention. FIGS. 11A and 11B are schematic diagrams for explaining an engaged member of the assembly type returnable box according to the third application example of the present invention, wherein FIG. 11A shows a front view and FIG. 11B shows a right side view. (C) is a top view, (d) is a back view, (e) is a left side view, and (f) is a bottom view. 12A and 12B are schematic views for explaining an engaging member of the assembly type returnable box according to the third application example of the present invention, wherein FIG. 12A shows a front view and FIG. 12B shows a right side view. (C) is a top view, (d) is a back view, (e) is a left side view, and (f) is a bottom view.

[One Embodiment of Assembly Type Returnable Box]
1, 2, and 3, the assembly type returnable box 1 according to the present embodiment includes a rectangular bottom plate 20 made of a hollow resin plate and four pieces of a hollow resin plate that are rotatably connected to the bottom plate 20. A substantially rectangular side plate 21, 22, 23, 24; connecting means 31, 32, 33, 34 for connecting adjacent side plates in an assembled state; and a rectangular lid 25 made of a hollow resin plate for lid The bottom plate 20, the side plates 21, 22, 23, 24 and the foam member 50, 51, 52, 53, 54, 55 as a functional member detachably attached to the inside of the lid 25.
In this embodiment, the functional member is a foam material. However, the functional member is not limited to this. For example, various members having a buffer property, a heat insulating property, a sound insulating property, an electromagnetic wave shielding property, etc. may be used. Good.

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

(Connecting means)
As described above, the assembly type returnable box 1 includes connection means 31, 32, 33, and 34 that connect the adjacent side plates in an 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 includes the side plate 22 and the side plate 23. The connecting means 34 connects the side plate 22 and the side plate 24.
Further, 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 the side plates 21, 22 in the Y direction. And engaged members 312, 322, 332, and 342 attached thereto. That is, the connecting means 31 includes 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. Includes an engaging member 321 attached to a corner portion of the side plate 24 in the X direction and an engaged member 322 attached to a corner portion of the side plate 21 in the Y direction. The engaging member 331 is attached to the corner of the side plate 23 and the engaged member 332 is attached to the corner of the side plate 22 in the Y direction, and the connecting means 34 is a corner of the side plate 24 in the X direction. 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 side plates 23 and 24 in the X direction for convenience, and the side plates 21 and 22 are referred to as side plates 21 and 22 in the Y direction for convenience.

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

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

The engaging piece 3113 has a notch that engages with the rotating shaft 3119 at one end, and an engaging portion 3114 that engages with the engaged portion 3123 of the engaged member 312 at the other end. Is molded. Further, 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 in the horizontal direction from the standing position, the engaging portion 3114 engages with the engaged portion 3123, and the engaging member 311, the engaged member 312, Are concatenated.

  Here, it is preferable that the engaging member 311 is provided with frame engaging portions 3116 and 3117 protruding into the grooves of the adjacent frames 44 and 42. That is, the engaging member main body 3110 is provided with a frame engaging portion 3116 for engaging with a groove of the frame 44 described later on the upper right side surface thereof, and a groove of the frame 42 described later on the lower surface on the left side. It is preferable that a frame engaging portion 3117 for engaging with the projection is provided. If it does in this way, since the engagement member main body 3110 connects the frame 44 and the frame 42, the mechanical strength of the side plate 23 can be further improved.

In FIG. 5, an engaged member 312 is an engaged member main body 3120 attached to a corner portion of the side plate 21, and an engaged portion that is formed on the engaged member main body 3120 and engages with the engagement piece 3113. 3123 and an engaged member main body 3120 and an engaged hole 3124 into which the engaging portion 3118 is engaged.
When viewed from the front side, the engaged member main body 3120 has a substantially bowl shape with a notch formed in the upper portion, and an engaged portion 3123 projects from the upper surface of the notch. Further, the engaged member main body 3120 has a sandwich plate 3121 formed on the front side and a sandwich plate 3122 formed on the back side, and the corner portion of the side plate 21 is between the sandwich plate 3121 and the sandwich plate 3122. By being press-fitted, the engaged member 312 is attached to the side plate 21.

Further, the engaged member main body 3120 is formed with 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 connected, the connection strength in the X direction and the vertical direction can be significantly improved.
Further, the engaged member main body 3120 is provided with a substantially rectangular flat plate-shaped cover plate 3125 on the rear surface thereof, which covers the end face 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 that engages with the engaging portion 3114 is formed on the upper front side.
When the engaged piece 3123 is rotated so that the engaging piece 3113 is tilted in the horizontal direction from the standing position, the convex portion of the engaged portion 3123 is slightly deformed elastically when the engaging piece 3113 is tilted in the horizontal direction. The engaging member 311 and the engaged member 312 are connected.

  Here, preferably, the engaged member 312 is provided with projecting portions 3126 and 3127 for frames which are engaged with the grooves of the adjacent frames 43 and 41. That is, the engaged member main body 3120 is provided with a frame engaging portion 3126 that protrudes into a groove of a frame 43 described later on the upper left side surface, and a frame 41 described later on the lower surface on the right side. A frame engaging portion 3127 for engaging with the groove is preferably provided so as to protrude. If it does in this way, since the to-be-engaged member main body 3120 connects the flame | frame 43 and the flame | frame 41, the mechanical strength of the side plate 21 can further be improved.

  In addition, although the connection means 31 was demonstrated, since the connection means 32, 33, and 34 have the component substantially the same as the connection means 31, (however, the directions of each component differ). Detailed description thereof will be omitted.

(flame)
The side plates 21, 22, 23, and 24 are joined to the end portions of the three sides and have three frames each having a groove shape in cross section, and each of the frames engages with the foam material for locking 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.
6A, the frame 44 has an elongated flat plate-shaped outer surface plate 441, an end surface plate 442, an inner surface plate 443, a protruding plate 444, and a foam locking member 445. It is integrally formed by molding. In this frame 44, the outer surface plate 441 and the inner surface plate 443 are opposed to each other, and the upper portions thereof are connected by the end surface plate 442. The part 445 is connected, and the foam locking part 445 extending downward is connected to the tip of the foam locking part 445.
Here, the outer plates 441, 442, and 443 are substantially groove-shaped in cross section, and the upper portion of the side plate 23 is fitted into the groove. A 311 frame engaging portion 3116 is inserted. 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 foam locking portion 445 is connected to the inner surface plate 443 through the protruding plate 444. And the corner | angular part of the latching | locking part 445 for foam materials is chamfered, and the protrusion board 444 is easily elastically deformed. Accordingly, when the foam material 53 is attached, if 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 then. When the protruding plate 444 is restored, the foaming material locking portion 445 locks the foaming material 53. In this manner, 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 foaming material locking portion 445 is released, so that the foaming material 53 can be easily removed.

The protruding plate 444 covers the top of the foam material 53 and the lid 25 is placed thereon.
Here, since the lid 25 is in contact with the protruding plate 444, dust and the like are prevented from entering the inside of the assembly-type returnable box 1 from the outside. Moreover, heat insulation etc. can be improved by making the foaming material 55 and the foaming material 53 into the state which approached (usually 1-3 mm away).

  6B, the frame 41 includes an elongated flat plate-shaped outer surface plate 411, an end surface plate 412, an inner surface plate 413, a protruding plate 414, and a foam locking member 415. , An outer flat plate 421, an end plate 422, an inner plate 423, a protruding plate 424, and a foam locking portion 425. Further, the frames 41 and 42 and the frame 43 (not shown) are different in length from the frame 44, but the other structures are substantially the same as the frame 44. Therefore, as described above, the foam materials 51, 52, 53, and 54 can be easily attached and removed by the frames 41, 42, 43, and 44.

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

Further, in the assembled state, the end face plate 412 contacts the inner surface plate 423, and the protruding plate 414 contacts the foaming material locking portion 425, so that dust or the like is generated inside the assembly type returnable box 1 from the outside. Prevent intrusion. Moreover, heat insulation etc. can be improved by making the foaming material 51 and the foaming material 53 into the state which approached (usually 1-3 mm away).
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 in 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, the same size, and the same thickness. The foam material 53 and the foam material 54 have the same shape, the same size, and the same thickness. 55 has substantially the same shape, the same size, and the same 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 to the foam material 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 double-sided tape (not shown) or the like.

In the present embodiment, since the three-layered bubble boards are used as the side plates 21, 22, 23, and 24, the foam materials 51, 52, 53, and 54 are attached as shown in FIG. It is done. 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 formed with a plurality of caps 233 that bulge in a hollow shape, 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 be 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 so as to slide.

(lid)
As described above, the lid 25 has a rectangular shape and is made of a hollow resin plate for the 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 bubble board, a two-layer bubble board, a plastic cardboard, and a plastic honeycomb board. The reason for adding “for the lid” is that the bottom plate 20 and the side plates 21, 22, 23, 24 are usually formed in a predetermined shape from a single hollow resin plate, and have the same structure as the hollow resin plate (for example, This is because the lid 25 may be a hollow resin plate (for example, a three-layer bubble board) having a different structure, whereas it is a two-layer bubble board described later.
The lid 25 of the present embodiment is not shown in cross-sectional structure, but a cap sheet in which a plurality of caps that bulge in a hollow shape is formed, and a back sheet and a liner sheet that are 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 process, and can improve waterproofness and aesthetics.

As shown in FIG. 1, the lid 25 has a foam material 55 detachably attached to the inside thereof.
If it does in this way, also in the lid | cover 25, heat insulation and a buffering property can be improved with the foam material 55, and when the foam material 55 becomes dirty or damaged, only the foam material 55 can be replaced | exchanged. It can improve cleanliness and economy.
Further, in this embodiment, as shown in FIG. 6A, the lid 25 is placed on the protruding plate 444 and the like, so that the positioning of the lid 25 is ensured by the inner surface plate 443 and the like. This is possible, and it is not necessary to form a positioning portion on the lid 25, so that the structure can be simplified.
The lid 25 is not limited to the above-described structure. For example, although not shown, the lid 25 may be placed on the end face plate 442 or the like.
Moreover, although the lid | cover 25 is used as a lid | cover lifted upwards, it is not limited to this, For example, although not shown in figure, the lid | cover connected with the side plate so that rotation was possible may be sufficient.

Next, operation | movement of the assembly type returnable box 1 of the said structure is demonstrated.
As shown in FIG. 1, in the assembled assembly-type returnable box 1, the accommodation space is surrounded by the foam materials 50, 51, 52, 53, 54, and 55, so that it is possible to improve heat insulation and buffering properties. Thereby, the assembly-type returnable box 1 is effective as a returnable box that accommodates and delivers commodities such as food.
Further, when storing the assembly-type returnable box 1, the connection means 31, 32, 33, 34 can be released to be unfolded as shown in FIG. 2 and stacked and stored. Therefore, space saving can be achieved. Furthermore, since the connection can be released by an easy operation of rotating the engagement piece 3113 and the like upward, the usability can be improved.

Further, when the foamable material 50, 51, 52, 53, 54, 55 is soiled or damaged such as deformation or breakage due to use, the assembly-type returnable box 1 is used for the foamed material 50, 51, 52, 53. , 54, 55 can be easily replaced.
That is, for example, when replacing the dirty foam material 53, first, the connection of the connection means 31, 33 is released, the side plate 23 is unfolded, and the protruding plates 444, 424, 414 are bent in a widening direction, 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 projecting plates 444, 424, 414 are elastically deformed in the direction in which they expand, and then the foam material locking portions 445, 425, 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, the assembly-type returnable box 1 can easily replace the dirty foam material 53 in a short time.
The foam materials 52, 53, and 54 can be replaced in substantially the same manner as the foam material 51.

In addition, when the foam materials 50 and 55 are replaced, these are usually joined by a double-sided tape or the like. Therefore, the foam materials 50 and 55 are removed against the adhesive force of the double-sided tape, and a new double-sided tape is attached. Used to attach the foam materials 50, 55.
As described above, the assembly-type returnable box 1 can easily replace the foam materials 50, 51, 52, 53, 54, and 55 in a short time, thereby improving cleanliness and economy. be able to.
Furthermore, the assembly type returnable box 1 can connect the connecting means 31 and the like by an easy operation of rotating the engaging piece 3113 and the like, and can release the connection, thereby improving workability. Can

As described above, according to the assembly type returnable box 1 of the present embodiment, the heat insulating property and the shock absorbing property can be improved by the foam material, and the foam material is contaminated or damaged such as deformation or breakage. In this case, it is possible to easily replace only the foam material, and it is possible to improve cleanliness and economy.
Moreover, this embodiment has various application examples.
Next, application examples of the present embodiment will be described with reference to the drawings.

<First application example of assembly-type returnable box>
In FIG. 8, the assembly type returnable box of this application example has a cap sheet 231 formed with a plurality of caps 233 in which the hollow resin plate of the side plate 23 bulges in a hollow shape as compared to the assembly type returnable box 1 described above. 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 cap 233 with the foam material 53 at least partially in a predetermined position. The points are different. The other configurations of the application example are almost the same as those of the assembly-type 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 is omitted.

In the side plate 23 of this application example, the hollow portion of the cap 233 is exposed, and the foam material 53 is provided with a cap engaging portion 531 for engaging with the cap 233 at a position corresponding to the predetermined cap 233. Has been. In this application example, two cap engaging portions 531 are provided in the vicinity of the frame 41 and the frame 42, respectively. In this way, when the side plate 23 is deployed or when the side plate 23 is assembled, it is possible to reliably prevent the problem that the foam material 53 moves in the direction of the foam material 50, and the foam material 53 is removed from the side plate 23. Can be securely attached.
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 cap engaging portions 531 may be one or more. Further, the projecting position is not limited to the above.

Further, in this application example, although not shown, the bottom plate 20 and the side plates 21, 22, and 24 are a two-layer bubble board composed of a cap sheet 231 and a back sheet 232, like the side plate 23. 50 and foam materials 51, 52, and 54 are provided with a cap engaging portion 531 that engages with the cap 233 at least at a predetermined position in the same manner as the foam material 53.
In this way, the foam materials 51, 52, and 54 can exhibit substantially the same effect as the foam material 53, and the foam material 50 can be easily and accurately positioned with respect to the bottom plate 20. In addition, it can be performed in a short time, and it is not necessary to join the foam material 50 to the bottom plate 20 with a double-sided tape, so that workability and the like can be greatly improved.
In the foamed material 50, although not shown in the drawing, one or two or more cap engaging portions 531 protrude in the vicinity of two corners on the diagonal line.

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

<Second application example of assembly-type returnable box>
In FIG. 9, the assembly type returnable box 1 a of this application example is different from the above-described assembled type returnable box 1 in that it has a foamed material 50 a instead of the foamed material 50. The other configurations of the application example are almost the same as those of the assembly-type 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 is 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, the depth of the holes is about 8 cm) are formed in a lattice shape on the upper surface. . Test holes (not shown) as stored items are inserted into these holes 501.
If it does in this way, the test tube of the shape which cannot be mounted stably can be stored easily and safely. In addition, many test tubes can be stored efficiently in close proximity, and each side plate 21, 22, 23, 24 can be expanded when storing and taking out test tubes, improving workability of loading and unloading. Can be made. That is, convenience and added value as a returnable box can be improved.

In addition, in this application example, although it is set as the structure which has the foam material 50a in which the some hole 501 was shape | molded, it is not limited to this. For example, although not shown, the foam material may have a shape corresponding to at least a part of the stored item, or a partition unit for storing a plurality of the stored items in a partitioned state.
Moreover, although the foam material which has said shape and a partition part is a foam material corresponding to a bottom plate normally, the foam material corresponding to a side plate may be sufficient.

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

<Third application example of assembly type returnable box>
In FIG. 10, the assembly type 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 assembly type returnable box 1 described above. The points are different. The other configurations of the application example are almost the same as those of the assembly-type 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 is omitted.

(Connecting means)
As described above, the assembly type returnable box 1b includes connection means 31b, 32b, 33b, and 34b for connecting adjacent side plates in the assembled state. That is, as shown in FIG. 10, the connecting means 31 b connects the side plate 21 and the side plate 23, the connecting means 32 b connects the side plate 21 and the side plate 24, and the connecting means 33 b includes the side plate 22 and the side plate 23. The connecting means 34 b connects the side plate 22 and the side plate 24.
The connecting means 31b, 32b, 33b, 34b are 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 engaging members 312b, 322b, 332b, and 342b. That is, the connecting means 31b includes 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, and the connecting means 32b. 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. The engaging member 331b attached to the corner of the side plate 23 and the engaging member 332b attached to the corner of the side plate 22 in the Y direction, and the connecting means 34b are the corners of the side plate 24 in the X direction. And an engagement member 342b attached to a corner portion of the side plate 22 in the Y direction.
In this application example, the side plates 23 and 24 are referred to as side plates 23 and 24 in the X direction for convenience, and the side plates 21 and 22 are referred to as side plates 21 and 22 in the Y direction for convenience.

Next, the engaged member 311b and the engaging member 312b will be described with reference to the drawings.
In FIG. 11, an engaged member 311b is formed on an engaged member main body 3110b attached to a corner of the side plate 23, and this engaged member main body 3110b is engaged with an engagement piece 3123b (see FIG. 12). And an engaging portion 3118 that protrudes from the engaged member main body 3110b and engages with the engaged hole 3124 (see FIG. 12).
The engaged member main body 3110b has a substantially bowl shape when viewed from the front side, and a substantially bowl-shaped engaged portion 3113b is projected from the upper left side surface when viewed from the front side. Further, the engaged member main body 3110b has a sandwich plate 3111 formed on the front side and a sandwich plate 3112 formed on the back side, and a corner portion of the side plate 23 is interposed between the sandwich plate 3111 and the sandwich plate 3112. By being press-fitted, the engaged member 311 b is attached to the side plate 23.

In addition, the engaged member main body 3110b is provided with an engaging portion 3118 protruding from the left side surface into 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 greatly improved.
Further, the engaged member main body 3110b is provided with a substantially rectangular flat plate-shaped cover plate 3115 on the rear surface so as to cover 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 and 3117 protruding into the grooves of the adjacent frames 44 and 42. That is, the engaged member main body 3110b has a frame engaging portion 3116 protruding into the groove of the frame 44 on the right side surface of the upper portion, and is engaged with the groove of the frame 42 on the lower surface on the left side. A frame engaging portion 3117 for projecting may be provided. If it does in this way, since the to-be-engaged member main body 3110b connects the flame | frame 44 and the flame | frame 42, the mechanical strength of the side plate 23 can further be improved.

In FIG. 12, an engagement member 312b includes an engagement member main body 3120b attached to a corner of the side plate 21, an engagement piece 3123b slidably attached to the engagement member main body 3120b, and an engagement 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 engagement member main body 3120b has a substantially bowl shape with a notch formed in the upper right portion, and a projecting projection 3128 is provided on the upper surface of the notch, and the engagement piece 3123b is a slide. By engaging with the convex portion 3128 for use, it is slidably attached to the engaging member main body 3120b. Further, the engaging member main body 3120b has a sandwich plate 3121 formed on the front side and a sandwich plate 3122 formed on the back side, and the corner portion of the side plate 21 is press-fitted between the sandwich plate 3121 and the sandwich plate 3122. As a result, the engaging member 312b is attached to the side plate 21.

Further, the engagement member main body 3120b is formed with an engaged hole 3124 into which the engagement portion 3118 of the engaged member 311b is engaged. Thereby, when the engaging member 312b and the to-be-engaged member 311b are connected, the connection intensity | strength with respect to a X direction and an up-down direction can be improved significantly.
Further, the engagement member main body 3120b is provided with a cover plate 3125 having a substantially rectangular flat plate shape, which covers the corner end face of the foam material 51 and on which the lid 25 is placed.
Further, the engaging member main body 3120b and the slide convex portion 3128 are provided with a concave portion 3129 on the back side and at a position corresponding to the engaged portion 3113b.

  Here, preferably, the engaging member 312b is provided with projecting portions 3126 and 3127 for frames that engage with the grooves of the adjacent frames 43 and 41. That is, the engaging member main body 3120b is provided with a frame engaging portion 3126 that protrudes into the groove of the frame 43 on the left side surface of the upper portion, and is engaged with the groove of the frame 41 on the lower surface on the right side. A frame engaging portion 3127 may be provided so as to protrude. If it does in this way, since the engagement member main body 3120b connects the frame 43 and the frame 41, the mechanical strength of the side plate 21 can be further improved.

The engagement piece 3123b is formed with recesses into which the sliding projection 3128 is engaged on the left side surface and the lower surface, and can be slid in the left-right direction by a predetermined distance by the engagement. The piece 3123b does not easily come off the sliding projection 3128.
When connecting the engaged member 311b to the engaging member 312b, first, the engaging piece 3123b is moved to the right side, then the engaged portion 311b is engaged with the recess 3129, and then the engaging piece 3123b. Move to the left. Thereby, the engaging piece 3123b engages with the engaged portion 3113b, and the engaged member 311b and the engaging member 312b are connected.

  In addition, although the connection means 31b was demonstrated, since the connection means 32b, 33b, 34b has a component substantially the same as the connection means 31b (however, directions of each component differ). Detailed description thereof will be omitted.

  As described above, the assembly-type returnable box 1b of this application example can achieve substantially the same effect as the assembly-type 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 returnable box can be improved.

As mentioned above, although the preferred embodiment etc. were shown and demonstrated about the assembly type returnable box of this invention, the assembly type returnable box which concerns on this invention is not limited only to embodiment mentioned above etc., The range of this invention Needless to say, various modifications can be made.
For example, as described above, the foam material 55 is attached using a double-sided tape or the like, but is not limited thereto. Although not shown, for example, members corresponding to the protruding plate 444 and the foam locking portion 445 described above may be provided on the lower surface of the lid 25. If it does in this way, like the side plate 21 etc., replacement | exchange of the foaming material 55 can be performed easily and for a short time.

  Moreover, although the foam materials 50, 51, 52, 53, and 54 are independent parts, it is not limited to this, For example, although not shown in figure, the foam materials 50, 51, 52, 53, and 54 are not shown. It is good also as a structure which connected by the film. If it does in this way, when exchanging all the foam materials 50, 51, 52, 53, and 54, it can be handled as one connected component, and workability etc. can be improved.

  Further, although not shown, a slope inclined downward at 45 ° is formed at the edge of the foam material 50, and a slope that contacts or faces the slope is formed below the foam materials 51, 52, 53, 54. It may be formed. If it does in this way, a clearance gap will be reduced and heat insulation etc. can be improved.

1, 1a, 1b Assembly-type returnable box 20 Bottom plate
21, 22, 23, 24 Side plate 25 Lid 26 Folded lines 31, 31b, 32, 32b, 33, 33b, 34, 34b Connecting means 41, 42, 43, 44 Frame 50, 50a, 51, 52, 53, 54, 55 Foam 231 Cap sheet 232 Liner sheet 233 Cap 234 Top 235 Liner sheets 311, 321, 331, 341 Engaging members 312 b, 322 b, 332 b, 342 b Engaging members 312, 322, 332, 342 Engaged members 311 b, 321 b, 331b, 341b Engaged members 411, 421, 441 Outer surface plates 412, 422, 442 End surface plates 413, 423, 443 Inner surface plates 414, 424, 444 Protruding plates 415, 425, 445 Foaming material locking portions 501 Hole 531 Cap engaging portion 3110, 3120b Engagement member Body 3111, 3112 Clamp plate 3113, 3123b Engagement piece 3114 Engagement part 3115 Cover plate 3116, 3117 Engagement part 3118 Engagement part 3119 Rotating shaft 3120, 3110b Engagement member main body 3121, 3122 Clamp plate 3123, 3113b Covered Engagement portion 3124 Engagement hole 3125 Cover plates 3126 and 3127 Engagement portion 3128 for frame Slide projection 3129 Recess

Claims (8)

A rectangular bottom plate;
Four rectangular side plates rotatably connected to the bottom plate;
A connecting means for connecting adjacent side plates in an assembled state;
With
The connecting means includes an engaging member attached to a corner portion of the side plate in the X direction, and an engaged member attached to a corner portion of the side plate in the Y direction,
The engagement member includes an engagement member main body attached to the corner portion, an engagement piece rotatably attached to the engagement member main body, and an engaging portion protruding from the engagement member main body. Have
The engaged member main body attached to the corner, the engaged member formed on the engaged member main body and engaged with the engaging piece, and the engaged member An assembly type returnable box formed in a main body and having an engaged hole into which the engaging portion is engaged. A rectangular bottom plate;
Four rectangular side plates rotatably connected to the bottom plate;
A connecting means for connecting adjacent side plates in an assembled state;
With
The coupling means includes an engaging member attached to a corner portion of the side plate in the Y direction, and an engaged member attached to a corner portion of the side plate in the X direction,
The engagement member includes an engagement member main body attached to the corner portion, an engagement piece slidably attached to the engagement member main body, and an engaged hole formed in the engagement member main body. Have
The engaged member main body attached to the corner, the engaged member formed on the engaged member main body and engaged with the engaging piece, and the engaged member An assembly-type return-on-box that has an engaging portion that protrudes from the main body and engages with the engaged hole.   3. The assembly type returnable box according to claim 1, wherein each of the side plates has three frames each having a cross-sectional shape that is joined to end portions of three sides.   Each said engaging member and each said to-be-engaged member are protrudingly provided with the engaging part for frames which engages with the groove | channel of the said adjacent flame | frame. Assembling-type returnable box.   It has a rectangular-shaped lid | cover, The assembly-type returnable box as described in any one of Claims 1-4 characterized by the above-mentioned.   6. The assembly type returnable box according to claim 5, wherein the bottom plate, the side plate, or the lid is made of a hollow resin plate.   7. The air bubble board according to claim 6, wherein the hollow resin plate is a bubble board having a cap sheet in which a plurality of caps that swell in a hollow shape are formed, and a liner sheet to which the top of the cap is fused. Assembling-type returnable box.   The hollow resin plate is a bubble board having a cap sheet formed with a plurality of caps that bulge in a hollow shape, and a back sheet and a liner sheet laminated so as to sandwich the cap sheet. The assembly-type returnable box according to claim 6.

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