JP2017001730A - Bottom surface protective member of collapsible storage box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent wearing-out of a bottom surface part of a storage box, by being installed in a lower part of the collapsible storage box.SOLUTION: A bottom surface protective member 10 can be folded up along these folding-up lines, by providing a plurality of folding-up lines of attaching a folding habit to be compressible together with a cold box by folding up in a state of being installed in a lower part of the cold box. The bottom surface protective member 10 is composed of one rectangular substrate part 11, and the substrate part 11 is formed of a sheet material such as a synthetic resin having flexibility. A pair of fold lines 12 are provided in this substrate part 11, and a pair of side surface parts 14a and 14b on both sides can be stood up from a main surface part 13 by the fold lines 12. A reverse surface of the main surface part 13 is provided with four sliding strip materials 17 in total of two sliding strip materials 17a on the long sides 15a and 15b, a sliding strip material 17b on a third folding-up line 16c and a sliding strip material 17c on a fourth folding-up line 16d.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a bottom surface protection member for a foldable storage box that is detachably mounted on a bottom surface portion of a foldable cold storage box that stores, for example, refrigerated food.

  Patent Document 1 discloses a foldable cold box in which a heat insulation panel is arranged on the inside, and the driver carries the cold box storing the cold food on a loading platform such as a truck, and each such as a supermarket or a convenience store. Delivering cold food to stores.

  The assembled cold insulation box has a rectangular parallelepiped shape, and a plurality of stacked cold insulation boxes are stacked and delivered on a truck bed. In addition, the side wall of the cool box is provided with a handle made of a belt, and when the cool box is stored in and taken out from the truck bed, the driver holds the handle of the cool box at the bottom of the stacked cool boxes. Pull and move on the bed in a rubbed state. In addition, after unloading from the truck, the driver holds the handle and rubs the floor to deliver the cold box.

  The cold box containing the cold food is delivered to each store by the driver together with the cold box, and after the cold food taken out of the cold box is moved to a refrigerator or the like, the driver folds the cold box and takes it home.

JP 2011-59739 A

  However, since the cold box is used repeatedly, there is a problem that the bottom surface portion is worn out and damaged when it continues to move in a truck bed or a store while being rubbed with a load as described above.

  At the beginning of use, the synthetic resin made of polyethylene or the like on the outside of the cool box is rubbed and broken, but if the use is continued, the inner heat insulation panel will be exposed and the heat insulation panel will be scraped. .

  If the use is further continued, a hole is formed in the bottom portion of the cold insulation box, and the outside air enters the cold insulation box, so that the heat insulation efficiency is remarkably lowered. As described above, when the outside of the box is damaged, it is necessary to discard the cold insulation box itself, and there is a problem that the use cost increases.

  An object of the present invention is to provide a bottom surface protection member for a folding storage box that solves the above-described problems, has a sliding member attached, and is less likely to be damaged by abrasion.

  In order to achieve the above object, a bottom protective member of a foldable storage box according to the present invention is a bottom protective member that is attached to the bottom of a foldable storage box and can be folded together with the storage box. A pair of side surfaces can be erected from a central main surface by folding lines provided on both short sides of a single rectangular substrate, and a folding line parallel to the long side of the substrate is provided on the main surface In addition, a sliding strip material having wear resistance is attached to the back surface of the main surface portion on both long sides of the main surface portion and the fold line parallel to the long side.

  The bottom surface protection member of the foldable storage box according to the present invention can be attached to the lower part of the foldable storage box to protect the bottom of the storage box from being worn away.

It is a perspective view before attaching a bottom face protection member to a cool box. It is a perspective view of the state where the bottom face protection member was turned upside down. It is a perspective view of the state where the bottom face protection member was attached to the cold insulation box. It is a perspective view of the process of folding a bottom face protection member with a cold insulation box. It is the perspective view which looked at the bottom face protection member of the modification from the bottom face. It is a perspective view of the bottom face protection member of other modifications.

The present invention will be described in detail based on the embodiments shown in the drawings.
FIG. 1 is a perspective view before a bottom surface protection member is mounted on the outer side of the lower part of the folding cool box.

  The bottom surface protection member 10 is composed of a single rectangular substrate portion 11, and the substrate portion 11 is formed of a flexible sheet material such as synthetic resin. On the short side of the substrate portion 11, a pair of fold lines 12 are provided in parallel with the folds that are valley-folded when viewed from the surface side indicated by dotted lines in parallel with the short sides. A pair of side surface portions 14 a and 14 b on both sides can stand up from the inner main surface portion 13 by a fold line 12.

  The size of the substrate portion 11 is, for example, about 85 cm in the long side, about 45 cm in the short side, and about 5 mm in thickness, and the rising height of the side portions 14 a and 14 b is about 10 cm. In addition, the board | substrate part 11 may employ | adopt a heat insulation sheet material, and the magnitude | size of the bottom face protection member 10 can be made into an appropriate size according to the magnitude | size of the cold storage box 20 which should be mounted | worn.

  The bottom surface protection member 10 is folded in a state where it is attached to the lower part of the cold insulation box 20, and is provided with a plurality of folding lines with folds so that it can be compressed together with the cold insulation box 20, and along these folding lines. It can be folded.

  That is, the first fold line 16a consisting of four diagonal lines that are mountain folds on the hypotenuses of two triangles with a part of the fold line 12 as the base side, and the apexes of these triangles passing toward the base side. Two main fold lines 16b that form two valley folds that form perpendicular lines, one third fold line 16c that connects the vertices of triangles with straight lines and form mountain folds, and a length of both sides A fourth fold line 16d which is parallel to the sides 15a and 15b and is valley-folded is formed.

  In the two side surface portions 14a and 14b, the fifth fold line 16e which is parallel to the long sides 15a and 15b on both sides, is continuous with the fourth fold line 16d and is valley-folded, and is continuous with the second fold line 16b. A sixth fold line 16f that is parallel to the long sides 15a and 15b and is mountain-folded is formed. In the drawings, valley folds are indicated by dotted lines, and mountain folds are indicated by dashed lines.

  As shown in FIG. 2, on the back surface of the main surface portion 13, the two sliding strips 17a on the long sides 15a and 15b, the sliding strip 17b on the third folding line 16c, and the fourth folding line 16d A total of four sliding strips 17 are provided. These sliding strips 17 are made of hard synthetic resin or the like, and are linear members having a wear resistance of, for example, a T-shaped cross section having a width of 5 mm and a height of about 5 mm. The sliding strip 17 cut to a required length is attached to the back surface of the main surface portion 13 by means such as sewing or adhesion. The sliding strip member 17 is not limited to the shape of the embodiment, and may be a belt-like member having wear resistance, for example.

  An appropriate number of these sliding strips 17 is arranged according to how the cold insulation box 20 to be mounted is folded. For example, in the case where the folding triangle is constituted by the first fold line 16a and the fold line 12 without providing the fourth fold line 16d, the two sliding strips 17a along the long sides 15a and 15b A total of three sliding strips 17 with the sliding strip 17b on the third fold line 16c are arranged.

  On the inner surface side of the side surfaces 14a and 14b, a main fixed surface fastener 18 that is joined to a fixed surface fastener provided on a side surface of the cold insulation box 20 described later is provided over the entire surface of the side surfaces 14a and 14b. In addition, an attachment band 19 having flexibility toward the outside is disposed at the approximate center of each of the long sides 15a and 15b on the main surface portion 13, and a cold insulation box is provided at the front end of the attachment band 19. A sub-fixation surface fastener 19a that is joined to a surface fastener described later provided on the side surface of the 20 is provided.

  The cold box 20 is formed of a flexible heat insulating sheet 21 in which aluminum is vapor-deposited on the surface of a foam sheet having a thickness of about several millimeters, for example. The cold box 20 is assembled in a box shape by a front plate 22 a, a back plate 22 b, a left side plate 22 c, a right side plate 22 d, a lid surface plate 23, and a bottom plate 24 by the heat insulating sheet 21. In addition, the material of the heat insulation sheet 21 can employ | adopt the material with a heat insulation effect suitably.

  The size of the cold insulation box 20 is, for example, about 65 cm in length, about 45 cm in width, and about 60 cm in height. The peripheral edge of the heat insulating sheet 21 is bordered by a tape member 25 for reinforcement and sewing, and the tape member 25 is similarly provided between the front plate 22a, the back plate 22b, the left side plate 22c, and the right side plate 22d to be connected. It is sewn using. A lid plate 23 is attached to the upper end of the back plate 22b by a tape member 25 so as to be freely opened and closed. Similarly, the lower ends of the front plate 22a, the back plate 22b, the left side plate 22c, and the right side plate 22d are sewn to the bottom plate 24 by the tape member 25. Has been.

  The size of the lid surface plate 23 is slightly larger than the rectangular opening formed by the front plate 22a, the back plate 22b, the left side plate 22c, and the right side plate 22d. A cover piece 23a that covers the upper edge of the front plate 22a is provided at the tip of the cover plate 23, and an inner surface of the cover piece 23a is provided with a belt-like opening / closing surface fastener 22e provided at the upper end of the front plate 22a. Opening / closing surface fasteners 23b to be joined are provided in a band shape.

  In addition, a folding holding band 23d having a folding surface fastener 23c that is joined to an opening / closing surface fastener 22e during folding, which will be described later, is attached to the center of the bent portion where the lid surface plate 23 and the back plate 22b are connected.

  The left side plate 22c and the right side plate 22d are provided with a belt-like connecting surface fastener 22f along the lower side and a connecting piece 22g along the upper side. A belt-like gripping portion 22h is provided at the center of the left side plate 22c and the right side plate 22d. Are attached by sewing or the like. Further, a strip-shaped connecting surface fastener 22i is provided on the surface of the connecting piece 22g. Further, a fixed surface fastener 22j is provided at the center of the lower end of the outer surface of the front plate 22a and the back plate 22b.

  In addition, when stacking the cool box 20, the bottom surface protection member 10 may be attached only to the bottom cool box 20. Since the stacked cold insulation box 20 may not be equipped with the bottom surface protection member 10, the connection surface fastener 22i of the connection piece 22g of the lower cold storage box 20 is joined to the unused connection surface fastener 22f. Can be fixed and can prevent collapse of cargo.

  The inner surfaces of the front plate 22a, the back plate 22b, and the cover plate 23 of the cold box 20 are made of a heat insulating material such as polystyrene foam, and for example, plate-like heat insulation panels 26a, 26b, and 26c each having a thickness of 3 cm are attached thereto. Yes. Further, the same heat-insulating panels 26d, 26e, and 26f that cover the inner surfaces of the left-side surface plate 22c, the right-side surface plate 22d, and the bottom-surface plate 24 and are made detachable have the left end side, right end side, and lower end side of the heat insulating panel 26b as axes. It is arranged so that it can be folded.

  The lid surface plate 23 is closed, and the open / close surface fastener 23b and the open / close surface fastener 22e of the front plate 22a are joined, so that the inside of the cold insulation box 20 is in a sealed state surrounded by the heat insulating panels 26a to 26f. The ends 26a to 26f are in contact with each other, so that the internal cold air does not leak to the outside.

  FIG. 3 is a perspective view of a state in which the bottom surface protection member 10 is attached to the lower part of the cold box 20. In addition, illustration of the internal heat insulation panels 26a-26f is abbreviate | omitted for convenience of explanation.

  In order to fold the cold insulation box 20, the bottom plate 24 is provided with eight bottom fold lines 27 with folds, and the left side plate 22c and the right side plate 22d have two side surfaces with folds. A fold line 28 is formed. The bottom fold line 27 is provided at a position that coincides with the first fold line 16a, the second fold line 16b, the third fold line 16c, and the fourth fold line 16d of the bottom face protection member 10, and the side fold line 28 is The bottom protective member 10 overlaps with the fifth fold line 16e and the sixth fold line 16f.

  In order to attach the bottom surface protection member 10 to the cold box 20, the pair of main fixing surface fasteners 18 of the bottom surface protection member 10 are joined to the pair of connecting surface fasteners 22 f at the bottom of the cold box 20, and further a pair of sub fixing surfaces. The fastener 19a is joined and fixed to the fixed surface fastener 22j. By fixing in this way, the bottom surface protection member 10 is not displaced or detached from the cold insulation box 20 even if the gripping portion 22h is held and pulled in the direction of the arrow shown in the drawing.

  In addition, although you may make it the structure which does not provide the sub fixed surface fastener 19a and the fixed surface fastener 22j, the side shift | offset | difference at the time of pulling the cool box 20 diagonally can be prevented by providing these.

  Moreover, since the main surface part 13 of the bottom face protection member 10 is pressed by the heat insulation panel 26 of the cold insulation box 20 in the assembled state and the weight of the stored items, the fold lines 16a to 16d become flat.

  FIG. 4 is a perspective view of the folding process of the cold box 20 fitted with the bottom surface protection member 10. When the cold box 20 is folded with the bottom surface protection member 10 attached, the lid surface plate 23 is first opened, and the lid surface plate 23 is folded back to the back side of the back plate 22b together with the heat insulating panel 26c. Next, the three heat insulation panels 26f, 26d, and 26e are rotated in this order until they become parallel to the heat insulation panel 26b, and are brought close to the heat insulation panel 26b side.

  Subsequently, by pushing the front plate 22a toward the back plate 22b, the bottom surface folding line 27 of the bottom surface plate 24 and the folding lines 16a to 16d of the main surface portion 13 of the bottom surface protection member 10 are pulled inward. At this time, the main surface portion 13 and the bottom plate 24 are folded into a mountain shape having the top of the third fold line 16c by folding.

  At the same time, the folding line 28 of the left side plate 22c and the right side plate 22d of the cool box 20 and the folding lines 16e and 16f of the side surface parts 14a and 14b of the bottom surface protection member 10 are recessed in a V shape by folding. Folded into a state. At the same time, it is folded so that the fold line 16e, which is a V-shaped apex, approaches the second fold line 16b.

  Finally, after the front plate 22a is completely pushed into the back plate 22b side, the folding surface fastener 23c of the folding holding band 23d is joined to the opening / closing surface fastener 22e, thereby maintaining the folded state of the cold box 20. Can do.

  FIG. 5 is a perspective view of a modified bottom surface protection member 10 ′. In addition to the sliding strips 17a to 17c, a sliding strip 17d disposed on the second fold line 16b is provided on the back surface of the main surface portion 13.

  By providing the sliding strip material 17d, the sliding strip materials 17a to 17d are uniformly polished. Further, since a gap is also provided between the sliding strips 17b and 17d in the vicinity of the apex of the folding line of each triangle, the rigid sliding strip 17 does not hinder folding.

  FIG. 6 is a perspective view of a modified bottom surface protection member 10 ″, and side surfaces 14c and 14d are provided on the long sides 15a and 15b, and the four side surfaces 14a to 14d are formed in a cylindrical shape. The sub-fixation surface fasteners 18 ′ that are joined to the fixing surface fasteners 22 j of the cold box 20 are provided inside the side surface portions 14 c and 14 d, and the attachment band 19 is not provided.

  In this way, by attaching the bottom surface protection members 10, 10 ′, and 10 ″ to the cold insulation box 20, the bottom surface plate 24 of the cold insulation box 20 does not directly contact the floor surface, and further, as described above, the bottom surface protection member. Since the sliding strip 17 is attached to the bottom surface of the sheet 10, the sheet material of the substrate portion 11 of the bottom surface protection member 10 is not rubbed against the floor surface, etc. Further, by attaching the bottom surface protection member 10 Moreover, the heat insulation effect with respect to the bottom face of the cold insulation box 20 can be improved more.

  If the sliding strip 17 is worn or damaged due to long-term use of the bottom surface protection member 10 or the sheet material of the substrate portion 11 is torn, it may be replaced with a new bottom surface protection member 10. Can be used as is.

  The bottom surface protection member 10 ″ can be mounted so as to cover the lower portion of the cold insulation box 20, and when the cold insulation box 20 is pulled in an oblique direction, the lateral displacement of the bottom surface protection member 10 ″ can be further prevented. It becomes possible.

  In the above-described embodiment, the storage box is the cold storage box 20, but the storage box is not necessarily the cold storage box 20, and can be applied to a storage box that does not have a cold storage function.

  Furthermore, the bottom surface protection member 10 can be attached to the lower part of the cold box 20 as a single unit without being detachable from the cold box 20.

DESCRIPTION OF SYMBOLS 10 Bottom surface protection member 11 Substrate part 12 Folding line 13 Main surface part 14 Side surface part 15 Long side 16, 27, 28 Folding line 17 Sliding strip material 20 Cold box 21 Thermal insulation sheet 22a Front panel 22b Rear panel 22c, 22d Side panel 23 Cover panel 24 Bottom plate

Claims (7)

A bottom protective member that is attached to the lower part of the storage box and can be folded together with the folding of the storage box,
A fold line provided on both short sides of one rectangular substrate portion allows a pair of side surface portions to stand up from a central main surface portion, and a fold line parallel to the long side of the substrate portion is provided on the main surface portion. A sliding storage box having a wear resistance on the long side of the main surface part and the folding line parallel to the long side is attached to the back surface of the main surface part. Bottom protection member. The fold line is provided on the side surface side of the main surface portion, and includes four first fold lines formed by hypotenuses of two triangles having the first fold line as a base, and vertices of the two triangles. Two second fold lines composed of perpendicular lines toward the bottom, and a third fold line that is a straight line connecting the vertices on the extension of the third fold line,
The bottom protective member for a foldable storage box according to claim 1, wherein the sliding strip material is attached on the second fold line on the back surface of the main surface portion. The fold line further includes a fourth fold line provided on the main surface portion in parallel with the long side of the substrate portion,
The bottom protective member for a foldable storage box according to claim 2, wherein the sliding strip member is attached on the fourth fold line on the back surface of the main surface portion.   The bottom protective member for a foldable storage box according to any one of claims 1 to 2, wherein a pair of side surface portions are provided so as to be able to stand upright on the long side of the main surface portion.   The bottom protective member for a folding storage box according to any one of claims 1 to 4, wherein the sliding strip member is attached on the third folding line on the back surface of the main surface portion.   The folding device according to any one of claims 1 to 5, wherein a surface fastener that is joined to a surface fastener provided in the storage box is provided on the pair of side surface portions, and is detachable from the storage box. Bottom protection member for tatami-style storage box.   The storage box includes a cover plate, a bottom plate, a front plate, a back plate, a left side plate, and a right side plate. The bottom plate, the left side plate, and the right side plate can be bent inward, and the pair of side portions are the storage box. Along with the left side plate and the right side plate, the main surface portion is mounted together with the bottom plate of the storage box so as to overlap with each other based on the folding line, and can be folded. The bottom surface protection member of the foldable storage box according to item.

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