JP2017209120A - Knockdown lunchbox - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a knockdown lunchbox that exceedingly facilitates assembly work from a sheet state to a box-shape and that can be folded when empty and carried compactly.SOLUTION: The knockdown lunchbox is sheet-shaped in a spread-out state and, by assembling while folding it, becomes box-shaped. The plate materials 6, 7 that become mutually superimposed end face parts are fastened to each other by adsorbing with shape-holding magnetic attracters 21, 22. At the same time, on the outer side of a plate material 1 that becomes front side face, a plate material 5 that becomes a lid part is superimposed and adsorbed with lid-closing magnetic attracters 23, 24. Thus, the box shape is made stably self-supportable in the knockdown lunchbox.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an assembled lunch box that can be folded and assembled from a sheet-like developed state.

  Conventionally, as an assembling-type food storage container that is assembled into a square box by folding a predetermined mountain fold or valley fold from a sheet-like unfolded state, FIG. 8 of Patent Document 1 (No. 3161650). The one described in FIG. 9 is known.

  In this conventional assembly-type food storage container, a predetermined mountain fold or valley fold of a synthetic resin sheet is folded and assembled into a square box, and the left and right side portions are double stacked and engaged. By locking with a stop hook, the finished shape can be stably held by itself.

  However, in the case of this conventional example, there is a problem that it takes time and labor to fold and assemble.

Japanese Utility Model Registration No. 3161650

  The present invention has been made in view of the above-described conventional technical problems, and it is extremely easy to assemble from a sheet-like unfolded state to a box shape, and an empty box after taking out the contents The purpose is to provide a prefabricated lunch box that can be carried in a very compact form when folded, and has excellent heat retaining properties.

  In the present invention, a rectangular plate material having the same long side length is disposed between two rectangular plate materials having the same long side length with respect to two rectangular plate materials having a front side surface portion and a back side surface portion. A plate material that becomes the top surface portion of the same shape as the plate material that becomes the bottom surface portion is arranged on the long side opposite to the plate material that becomes the bottom surface portion of the plate material that becomes the side surface portion, and both short sides of the plate material that becomes the bottom surface portion A plate material serving as an inner end surface portion is disposed on each side, a plate material serving as an outer end surface portion is disposed on each of both short sides of the plate material serving as the top surface portion, and serves as the back side surface portion of the plate material serving as the top surface portion. An outer sheet material that is provided with a plate material that is the same shape as the plate material that is the front side member on the long side opposite to the plate material, and that withstands repeated bending on each of the front surface side and the back surface side of the nine plate materials The inner sheet material is affixed, and the front side surface portion and the lid portion plate material Attach a magnetic adsorber for closing the lid to each of the locations facing each other at the time of assembly, and attach a magnetic adsorber for shape retention to each location facing at the time of assembling the plate material to be the inner end face and the plate to be the outer end face. In the state, it becomes a sheet shape, it is box-shaped by assembling while being folded, and the plate materials that are the end surface portions that overlap each other are adsorbed and fixed by the magnetic adsorbing tool for shape retention, and at the same time outside the plate material that becomes the front side surface portion It is characterized by an assembled lunch box that can self-hold the box shape by stacking plate materials to be the lid portion and adsorbing them with the magnetic adhering tool for closing the lid.

  In the assembly type lunch box, at least the inner sheet material of the inner sheet material and the outer sheet material can be kept warm.

  Further, in the assembly type lunch box, a handgrip handle may be attached to a place where the outer sheet faces the outer surface of the plate material that becomes the top surface portion of the outer sheet material.

  Further, in the assembly type lunch box described above, in a part of the inner sheet material, in a portion that is the inner side of at least one plate material among the plate materials that are the front side surface portion, the back side surface portion, the bottom surface portion, and the top surface portion, A pocket for storing the cooling agent may be provided.

  In the assembly type lunch box, one end of the fixing belt is connected to the long side portion serving as a free end of the long side portion of the plate member serving as the lid portion, and the fixing belt is connected to the lunch box in the assembled state. The free end can be fixed to the start end of the fixing belt with a fixing tool.

  Further, in the above-described assembly type lunch box, at least the inner sheet material of the inner sheet material and the outer sheet material, the plate material serving as the front side surface portion and the portion corresponding to the front side of each of the plate materials serving as the inner end surface portions. A connecting piece that is triangular in shape and has a center line portion that is folded inward is provided between the portion that contacts each of the short side portions of the plate, and the portion that corresponds to the vertical side portion on the back side of each of the plate members that are the outer end surface portions and the back side surface By providing a connecting piece that is triangular in shape and the center line part is folded inward between the portions that correspond to both short sides of the plate material that becomes the part, lifting both the inner end face members, and folding the connecting piece inward The front side member and the back side member positioned in the front and rear sides of the plate member serving as the bottom portion can be assembled together in a box shape.

  In the assembly type lunch box of the present invention, it is possible to easily assemble a box shape by folding a predetermined portion from a state where it is developed in a sheet shape, and to store food in the box shape. By unfolding and further folding, it can be used as a sheet material that is approximately half the size of the unfolded state and housed in a bag.

  Also, when assembling into a box shape, if the inner end surface portion and the outer end surface portion are overlapped, the magnetic adsorbers are attracted to each other, and if the front side surface portion and the lid portion are simultaneously overlapped, the magnetic adsorbers are adsorbed to each other, It can hold the shape stably and can be covered, making it convenient for carrying lunch.

The perspective view of the inner surface side of the unfolding state of the assembly-type lunch box of one embodiment of this invention. The perspective view of the outer surface side of the unfolding state of the assembly-type lunch box of the said embodiment. The perspective view which shows the intermediate state at the time of the assembly of the assembly-type lunch box of the said embodiment. The perspective view of the state before attaching the last cover part at the time of the assembly of the assembly-type lunch box of the said embodiment. The perspective view of the assembly completion state of the assembly-type lunch box of the said embodiment. The perspective view of the state which opened the cover part for the taking in / out of food in the assembly-type lunch box of the said embodiment. The perspective view of the state which opened the front side part with the cover part for the taking in / out of food in the assembly-type lunch box of the said embodiment. The perspective view which shows the state of the folding start of the assembly-type lunch box of the said embodiment. The perspective view of the intermediate state of folding of the assembly-type lunch box of the said embodiment. The perspective view of the folding completion state of the assembly-type lunch box of the said embodiment. The perspective view of the inner surface side of the unfolding state of the assembly-type lunch box of the 2nd Embodiment of this invention. The perspective view of the outer surface side of the unfolding state of the assembly-type lunch box of the said embodiment. The perspective view of the state just before binding the last fixing belt at the time of the assembly of the assembly-type lunch box of the said embodiment. The perspective view of the assembly completion state of the assembly-type lunch box of the said embodiment. The perspective view which shows the cooler pocket attachment state of the assembly-type lunch box of the 3rd Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  [First Embodiment] As shown in FIGS. 1 and 2, the assembled lunch box 100 according to the embodiment has five rectangular plates 1 to 5 with a small amount between their long sides. The end face members 6 and 7 are arranged in parallel with a gap between them, and at the same time, a little gap is left on both the left and right short sides of the plate member 2 serving as the bottom member and the plate member 4 serving as the top member among the plate members. It arrange | positions and adhere | attaches so that all of these nine board | plate materials 1-7 may be pinched | interposed by the inner sheet material 11 and the outer sheet material 12.

  In addition, a cardboard and a plastic board can be used as a raw material of a board | plate material. Here, “a little gap” means a dimension that allows the edges of adjacent plate materials to be abutted at right angles even if the plate material is thick.

  Hereinafter, in order to facilitate understanding, these plate materials 1 to 7 are composed of a front side member 1, a bottom member 2, a back side member 3, a top member 4, a lid in order from the left end to the right in FIGS. This is member 5. The left and right end face members of the bottom member 2 are 6 and the left and right end face members of the top member 4 are 7. In addition, since the end surface members 6 and 6 and the end surface members 7 and 7 overlap each other in an assembled state, the inner end surface member 6 and the outer end surface member 7 are used.

  For at least the inner sheet material 11, the left and right short sides of the front side member 1 and the one longitudinal side of the inner end face members 6 and 6 are connected by triangular connecting pieces 13 and 13, respectively. Each of the other vertical sides of the inner end face members 6 and 6 and the left and right short sides of the back side member 3 are connected by triangular connecting pieces 14 and 14, respectively.

  A handle 15 for carrying along the center line in the longitudinal direction is attached to the top surface member 4. Further, in order to keep the inner end face members 6 and 6 and the outer end face members 7 and 7 overlapped inside and outside at the time of assembling, the box-shaped holding magnetic adsorbers 21 and 22 are attached to the opposite positions. Further, in order to keep the front side member 1 and the lid member 5 overlapping inside and outside at the time of assembly, and to prevent the lid from being opened, the lid-attaching magnetic adsorbers 23 and 24 are attached to the mutually opposed locations. Yes.

  The inner sheet material 11 uses an aluminum-deposited embossed sheet as a material having heat retention and waterproofness. The outer sheet material 12 uses a vinyl sheet as a material having waterproofness and durability, as well as a property that allows easy patterning. These materials are preferable, but other materials that satisfy the same purpose may be used.

  The assembled lunch box 100 having the above structure is assembled into a box shape as follows. As shown in FIG. 3, the left and right inner end surface members 6 and 6 are brought up to a vertical state from the state developed in the sheet form shown in FIGS. 1 and 2, and the left and right connecting pieces 13 and 13 and the connecting pieces 14 and 14 are raised. Fold it inward. As a result, the front side member 11 is raised vertically by being connected to the connecting pieces 13 and 13 on the near side, and the back side member 3 is also raised vertically by being connected to the connecting pieces 14 and 14 on the back side. An opening box part 20 is formed.

  When the back side member 3 rises vertically, the top member 4 connected to the long side and the lid member 5 connected to the top member 4 are caused simultaneously with the formation of the box portion 20 of the top opening. It is. Naturally, the outer end surface members 7 on the left and right sides of the top surface member 4 are also raised together with the top surface member 4.

  Subsequently, by horizontally pulling down the top surface member 4 toward the front side, as shown in FIG. 4, the front side member 1, the bottom member 2, the left and right inner end surface members 6 and 6, and the back side member 3. The top surface member 4 closes the formed box portion 20 of the upper surface opening from above, and the lid member 5 hangs down to the near side. At this time, the outer end surface members 7 and 7 are overlapped on the outer sides of the inner end surface members 6 and 6, the box shape holding magnetic attracting devices 21 and 22 are attracted to each other, and the box portion 20 can stably hold the shape. become.

  Finally, the lid member 5 is overlapped with the front side of the front side member 1 to complete the lunch box 100 as shown in FIG. In this state, the lid closing magnetic attracting tools 23 and 24 are attracted to each other, the state where the lid member 5 is overlapped with the front side member 1 is stabilized, and the shape of the launch box 100 is also stabilized.

  Next, a description will be given of how to handle and carry lunch ingredients in the assembled lunch box 100 assembled in the state of FIG. As shown in FIGS. 6 and 7, the bottom member 2 is placed on the desk so that the lunch box 100 is stabilized, the lid member 5 is pulled up from the front side, and then the front side member 1 is leveled from the front side. Pull down. Thereby, with the bottom member 2 facing down, the lunch food can be put into the storage space 30 and the lunch food contained in the storage space 30 can be taken out.

  Next, a procedure when the lunch is finished and the assembled lunch box 100 is folded will be described. The assembled lunch box 100 assembled as shown in FIG. 5 is once returned to the original sheet-like unfolded state as shown in FIGS. Subsequently, as shown in FIG. 8, the left and right inner end surface members 6, 6 and the outer end surface members 7, 7 are folded inward. At this time, the left and right front connecting pieces 13 and 13 and the back connecting pieces 14 and 14 are folded inward.

  Subsequently, as shown in FIG. 9, the two front members, that is, the front side member 1 and the bottom member 2 are folded and folded on the back side member 3 and the top member 4. Finally, as shown in FIG. 10, the remaining lid member 5 is folded over the front side member 1. Thereby, the bulk can be reduced to an area of 2/5 or less from the unfolded state shown in the original FIG. 1, and the used assembled lunch box 100 can be easily taken home.

  As described above, the assembled lunch box 100 according to the embodiment of the present invention can be assembled into a relatively sturdy box shape by an extremely simple assembly operation from a sheet-like unfolded state, and lunch food can be easily taken in and out. In addition, if it is used, it can be made more compact and portable than the original sheet-like unfolded state, and it is extremely useful as a lunch box.

  [Second Embodiment] An assembled lunch box according to a second embodiment will be described with reference to FIGS. The assembly type lunch box 100A of the second embodiment is characterized in that a fixing belt 30 is provided to the assembly type lunch box 100 of the first embodiment shown in FIGS. In addition, in the first embodiment, the magnetic attracting tools 23 and 24 provided one by one near the center of each of the front side member 1 and the lid member 5 are located on both sides of the fixing belt 30. The design has been changed in two locations. The other components of the assembly type lunch box 100A of the second embodiment are the same as those of the assembly type lunch box 100 of the first embodiment shown in FIGS. The detailed explanation is omitted.

  One end (starting end) of the fixing belt 30 is sewn into the edge of the long side which is the free end of the lid 5, and the entire length is assembling as a lunch box as shown in FIG. 5. The length is such that it goes around the circumference and the leading end overlaps the starting end.

  As shown in detail in FIG. 13, a hook-and-loop fastener surface receiving portion 31 is attached to the front side of the start end portion of the fixing belt 30, and the hook-and-loop fastener surface locking portion is attached to the back surface side of the leading end portion of the fixing belt 30. 32 is attached. Therefore, the assembly-type lunch box 100A is folded and assembled as shown in FIG. 13, and the fixing belt 30 is turned around the body to press the surface locking portion 32 at the front end against the surface receiving portion 31 at the start end. As a result, as shown in FIG. 14, the fixing belt 30 further goes around the entire circumference of the box body in the assembled state of the assembly type lunch box 100A, and the tips are engaged with each other so as to bind the box 100A without loosening. Become.

  According to the assembled lunch box 100A of the present embodiment, by using the fixing belt 30, the entire circumference of the body is bound and fixed by the fixing belt 30 in the assembled state as the assembled lunch box 100A. The possibility of opening the lid member 5 of the box 100A without knowing when carrying it is further reduced, and the reliability is improved.

  In the present embodiment, the means for fixing the front ends from the front and back is not limited to the above-mentioned hook-and-loop fastener, and for example, a combination of a button and a hook may be used, or a magnetic suction tool may be used. Further, a buckle type can also be used. Moreover, in the assembly type lunch box 100A of this embodiment, it is also possible to employ the cold-insulating agent pocket 40, which is a feature of the third embodiment to be described later, at a corresponding place.

  [Third Embodiment] An assembled lunch box 100B according to a third embodiment of the present invention will be described with reference to FIG. A feature of the present embodiment is that a cold-insulating pocket 40 for accommodating the cold-retaining agent is attached to the inner surface of the top surface member 4 with respect to the assembled lunch box 100 of the first embodiment. is there. Therefore, other configurations are common to the assembled lunch box 100 of the first embodiment shown in FIGS. 1 to 10, and detailed description is omitted by attaching the same reference numerals.

  In the assembled lunch box 100B according to the present embodiment, in particular in the summer, if food is stored in a sealed space, it is prevented from becoming hot and humid, and in order to keep the inside at a low temperature so as not to be spoiled, the cold-insulating pocket 40 It has the feature that can store the necessary amount of cold insulation.

DESCRIPTION OF SYMBOLS 1 Front side member 2 Bottom surface member 3 Back side member 4 Top surface member 5 Lid member 6 Inner end surface member 7 Outer end surface member 11 Inner sheet material 12 Outer sheet material 13 Connecting piece 14 Connecting piece 15 Handles 21, 22 Adsorbers 23 and 24 Magnetic adsorber 30 for closing the lid Belt 40 for fixing Coolant pocket

Claims (6)

For the two rectangular plate materials of the same shape to be the front side surface portion and the back side surface portion, a plate material to be a rectangular bottom surface portion of the same long side length is arranged between them,
Arranging a plate material that becomes the top surface portion of the same shape as the plate material that becomes the bottom surface portion on the long side opposite to the plate material that becomes the bottom surface portion of the plate material that becomes the back side surface portion,
Arranging the plate material to be the inner end surface portion on each of the short sides of the plate material to be the bottom surface portion,
Arranging the plate material to be the outer end surface portion on each of the short sides of the plate material to be the top surface portion,
Arrange a plate material that is the same shape as the plate material that becomes the front side member on the long side opposite to the plate material that becomes the back side surface portion of the plate material that becomes the top surface portion,
Attaching the outer sheet material and inner sheet material each withstanding repeated bending to the front side and the back side of the nine plate materials,
A magnetic adsorber for closing the lid is attached to each of the locations facing when assembling the plate material to be the front side surface portion and the plate material to be the lid portion,
Attach the shape-retaining magnetic suction tool to each of the opposing locations when assembling the plate material to be the inner end surface portion and the plate material to be the outer end surface portion,
In the unfolded state, it forms a sheet, forms a box shape by assembling while being folded, and adsorbs and fixes the plate members that become the end surface portions that overlap each other, and at the same time outside the plate material that becomes the front side surface portion The assembled lunch box is characterized in that the box shape can be self-maintained by stacking a plate material to be the lid portion and adsorbing it with the magnetic adhering tool for closing the lid.   The assembly type lunch box according to claim 1, wherein at least the inner sheet material of the inner sheet material and the outer sheet material has a heat retaining property.   The assembly type lunch box according to claim 1 or 2, wherein a handle for hand-holding is attached to a place where the outer sheet faces the outer surface of the plate material which becomes the top surface portion of the outer sheet material.   A part of the inner sheet material, and a pocket for storing a cold-retaining agent in a portion on the inner side of at least one plate material among the plate materials to be the front side surface portion, the back side surface portion, the bottom surface portion, and the top surface portion. The assembly type lunch box according to any one of claims 1 to 3, wherein the assembly type lunch box is provided.   One end of a fixing belt is connected to a long side portion that is a free end edge among the long side portions of the plate material that is the lid portion, and the fixing belt is rotated around the entire circumference of the assembled lunch box, and the free end thereof The assembled lunch box according to any one of claims 1 to 4, wherein the fixing belt is fixed to a starting end portion of the fixing belt by a fixing tool. Among the inner sheet material and the outer sheet material, at least the inner sheet material, a portion corresponding to the front vertical side portion of each of the plate materials to be both inner end surface portions and a portion corresponding to both short side portions of the plate material to be the front side surface portion, and A connecting piece that is triangular in shape and whose centerline part is folded inward is provided, and the short side portions of the plate material that becomes the back side surface portion and the portion that hits the vertical side portion of the back side of each plate material that becomes the both outer end surface portions A connecting piece that has a triangular shape and a center line part that folds inward is provided between each of the contact parts, lifts each of the inner end face members, and folds the connecting piece inward, so that the front and rear of the plate material that becomes the bottom face part 6. The assembled lunch box according to claim 1, wherein the front side member and the back side member located adjacent to each other are assembled in a box shape.

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