JP6485691B2 - Storage case component and storage case using the storage case component - Google Patents

Description

  The present invention relates to a storage case constituent part formed by blow molding, and a storage case using the storage case constituent part.

  2. Description of the Related Art A storage case made of a resin blow-molded product that can store an object to be stored between one case component and the other case component is conventionally known. In this storage case, a storage recess for storing an object to be stored is formed on the opposing surface of one case component and the other case component, and the one case component and the other case component are opposed to each other. When the surfaces are brought into contact with each other, a storage space is formed by the storage recesses of each other.

  Also, when stacking multiple storage cases, in order to prevent misalignment of the storage cases and stabilize the stacked state, stacking recesses and stacking that can be fitted to each other on the adjacent surface with other storage cases Protrusions are formed.

  When this storage case is manufactured by blow molding, a molding die corresponding to each shape of the pair of case component parts is used. First, a parison of a molten plastic resin is placed between a pair of molds opened. Then, by applying blow pressure in a state where the molding die is clamped, the parison is brought into close contact with the molding surface of the molding die and is taken out after being cooled and solidified. Thereby, each case component part is shape | molded as an internal hollow blow molded product.

  The following Patent Document 1 discloses a container manufactured by blow molding. This storage device stores a tool in a storage space formed between a pair of parts.

JP 2011-143487 A

  By the way, the external shape of the conventional storage case differs between one case component and the other case component. For this reason, when one case component and the other case component are individually blow-molded, two types of molding dies corresponding to each of them are required, and the number of molding dies increases, so the manufacturing cost increases. It was high.

  On the other hand, it is also conceivable to form regions corresponding to each of one case component and the other case component in the molding die, and simultaneously blow-mold both case component parts with one molding die. However, since this molding die requires an area corresponding to both case component parts, it must be made larger than the molding die that molds each case component part individually, and the manufacturing cost is still high. turn into.

  Therefore, the present invention is a storage case constituent part that is blow-molded, and can be manufactured at low cost by enabling each of the pair of case constituent parts to be molded with the same molding die without increasing the size of the molding die. It is an object to provide a storage case constituent part and a storage case using the part.

The storage case component of the present invention is a hollow body formed by blow molding , and a storage case configuration in which a storage recess is formed on one main surface and a stacking uneven portion is formed on the other main surface. The storage space is configured by turning one of the pair of storage case components having the same shape upside down and arranging the storage recesses so as to face each other. The stacking uneven parts of the storage case constituent parts that are not inverted and the stacking uneven parts of the storage case constituent parts that are inverted upside down are shaped to fit each other in the thickness direction. The storage recess extends into the protrusion of the stacking uneven portion.

The storage case of the present invention is a hollow body formed by blow molding, and has a storage case configuration in which a storage recess is formed on one main surface and a stacking uneven portion is formed on the other main surface. A storage case comprising parts, wherein one of a pair of storage case constituent parts having the same shape is turned upside down and the storage recesses are arranged so as to face each other. uneven portion may be shaped to fit each other when made to face the stacking concavo-convex portion of the stacking concavo-convex portion of the housing case construction parts are not turned upside down is turned upside down the housing case construction parts In the thickness direction, the storage concave portion extends into the convex portion of the uneven portion for stacking.

  In addition, about upper and lower of the upside down here, either one side of one main surface and the other main surface is set to the upper side, and the other side is set to the lower side. That is, the pair of storage case constituent parts have the same shape when not turned upside down, and when one storage case constituent part is turned upside down, the positions of one main surface and the other main surface are reversed.

  According to the present invention, when one of the pair of storage case components having the same shape is turned upside down and disposed so that the storage recesses face each other, a storage space is formed between the two case components, When stacking uneven portions of storage case components that are not inverted and stacking uneven portions of storage case components that are inverted upside down are stacked facing each other, stacking uneven portions are fitted to prevent misalignment. . Since the pair of case component parts have the same shape, each of the case component parts can be molded with the same molding die. Since the molding die may have a size corresponding to one case component, it does not increase in size.

  According to the present invention, since the pair of case component parts have the same shape, each case component part can be molded with the same molding die, and the molding die is not enlarged. Therefore, it is possible to provide a storage case constituent part that can be manufactured at low cost and a storage case using the storage case constituent part.

It is a perspective view of the storage case comprised by blow-molding the thermoplastic resin material of 1st embodiment of this invention. . It is a perspective view which shows one case structure part in the said embodiment from the surface by the side of storage space. It is AA sectional drawing in FIG. 2 of one case structure part in the said embodiment. It is BB sectional drawing in FIG. 2 of one case structure part in the said embodiment. It is CC sectional drawing in FIG. 2 of one case structure part in the said embodiment. It is DD sectional drawing in FIG. 2 of one case structure part in the said embodiment. It is the schematic when stacking the some storage case in the said embodiment. It is the EE cross-section partial enlarged view in FIG. 7 when stacking the some storage case in the said embodiment. It is sectional drawing in the same position as FIG. 4 when one case structure part is stacked on the other storage case in the said embodiment. It is the schematic which shows the surface by the side of the storage space of one case structure part in the other example of the said embodiment. It is the schematic which shows the main surface by the side of stacking of one case structure part in the other example of the said embodiment. It is a perspective view which shows one case structural part of the storage case in 2nd embodiment of this invention from the storage space side. It is a perspective view which shows one case structural part of the storage case in the said embodiment from the main surface side by the side of stacking. It is a perspective view explaining a state when a secondary shaft is stored in one case constituent part of the storage case in the above-mentioned embodiment, and is stacked on the other storage case. It is sectional drawing when a secondary shaft is accommodated in one case structural part of the storage case in the said embodiment, and it stacks on the other storage case. It is a perspective view which shows one case structural part of the storage case in 3rd embodiment of this invention from the storage space side. It is a perspective view which shows one case structural part of the storage case in the said embodiment from the main surface side by the side of stacking. It is a top view which shows one case structural part of the storage case in the said embodiment from the surface by the side of storage space. It is a side view of one case constituent part of a storage case in the above-mentioned embodiment. The primary shaft is stored in the first arrangement pattern in one case constituent part of the storage case in the above embodiment, the primary shaft is arranged in the second arrangement pattern in the other storage case, and one side is placed on the other storage case. It is a perspective view explaining a state when stacking the case component parts. The primary shaft is stored in the first arrangement pattern in one case constituent part of the storage case in the above embodiment, the primary shaft is arranged in the second arrangement pattern in the other storage case, and one side is placed on the other storage case. It is sectional drawing when stacking the case component parts.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view showing a storage case 100 formed by blow molding a thermoplastic resin material from the side of one case component part 10, and FIG. 2 shows one case component part 10 on the storage space side. It is a perspective view shown from a main surface. In the present embodiment, a storage case that stores a drive shaft SS (see symbol SS in FIG. 13) of the vehicle will be described as an example. The broken line indicating the drive shaft in FIG. 2 is a schematic explanatory line when the drive shaft SS in FIG. 13 is housed.

  In the storage case 100, a storage space is formed between one case component part 10 and the other case component part 20, and a drive shaft SS that is a storage object can be stored in this storage space. One case component part 10 and the other case component part 20 have the same shape in the same posture, and a storage recess 14 is formed on the main surface on the storage space side, and the main surface on the opposite side to the main surface on the storage space side. An uneven portion 17 for stacking is formed on the surface. In addition, although one case structure part 10 is demonstrated in detail below, it is the same also about the other case structure part 20 which is the same shape.

  3 is a cross-sectional view taken along line AA in FIG. 2 of one case component 10, FIG. 4 is a cross-sectional view taken along line BB, FIG. 5 is a cross-sectional view taken along line CC, and FIG. It is D sectional drawing. One case constituent part 10 is a substantially rectangular parallelepiped hollow body formed by blow molding, a storage space side wall part 11 constituting one main surface of the case constituent part 10, and an opposite side wall part constituting the other main surface. 12, a four-side wall portion 13 that connects the storage space side wall portion 11 and the peripheral end portion of the opposite side wall portion 12 is provided. The storage recess 14 is formed by forming the storage space side wall portion 11 into a concave shape, and the stacking uneven portion 17 is formed by forming the opposing side wall portion 12 into an uneven shape.

  If the posture with the main surface on the storage space side is defined as the first posture, one case component 10 is turned upside down from the first posture to the second posture shown in FIG. When the storage recesses 14 are arranged so as to face each other with respect to the other case constituent part 20 in the posture, a storage space is formed between the other case constituent part 20 and the storage case 100 is closed.

  In the present embodiment, the center line extending in the short direction D1 on the main surface of the storage space side wall 11 on the storage space side is defined as the first center line CL1, and the center line extending in the longitudinal direction D2 is defined as the second center line CL2. The storage recess 14 is symmetrical with respect to the central plane that bisects the storage space side wall 11 through the first center line CL1, and bisects the storage space side wall 11 through the second center line CL2. It is asymmetric with respect to the center plane. For this reason, one case component 10 is rotated from the first center line CL1 at a rotation angle of 180 degrees and turned upside down to change from the first posture to the second posture, and the other case component in the first posture. When combined with 20, a storage space is formed. The storage space is a surface object with respect to a plane passing between one case constituent part 10 and the other case constituent part.

  The shape of the storage recess 14 may be designed in accordance with the outer shape of the storage object, and in the present embodiment, the shape is in accordance with the outer shape of the drive shaft SS. The drive shaft SS is, for example, as shown in FIG. 13, and integrally includes a shaft portion SS1 and a disc portion SS2 provided near one end of the shaft portion SS1. The disc part SS2 has a larger diameter than the shaft part SS1.

  The storage recess 14 has a shape in which a plurality of such drive shafts SS are arranged and stored. That is, the storage recess 14 is a set of a plurality of shaft storage portions 14a corresponding to the shaft portion SS1 (see FIG. 13) and a disc portion storage portion 14b corresponding to the disc portion SS2 (see FIG. 13). The shape of the plurality of recesses is arranged. Specifically, the plurality of drive shafts SS are arranged in two rows along the second central axis CL2. In each row, in a posture in which the disk portion SS2 is located on the outside and the long axis side SS11 of the shaft portion SS1 is located on the center side, the long axis side SS11 of the three drive shafts SS in the left column in FIG. The storage recesses 14 are formed so that the long axis sides SS11 of the four drive shafts SS in the right row are alternately arranged.

  For this reason, the recessed part 14b which accommodates disc part SS2 arranges in the storage concave part 14 vicinity of the both long side edge part in the main surface by the side of the storage space of one case structure part 10, and is short outside the recessed part 14b. Notched recesses 14a for accommodating the shaft side SS12 are arranged, and recesses 14a for accommodating the long axis side SS11 are arranged at the center side.

  Further, a reinforcing rib 15 is provided in the thickness direction D3 inside one case component part 10 which is a hollow body. The reinforcing rib 15 is formed by a concave portion having a U-shaped cross section formed in the storage space side wall portion 11 contacting the opposing side wall portion 12. The reinforcing ribs 15 are provided in two rows in the longitudinal direction D2, and increase the resistance to pressurization in the thickness direction D3. Note that the reinforcing rib 15 extends to the position where the shaft portion SS11 of the drive shaft SS is disposed, and also functions as the housing recess 14.

  The storage space side wall 11 of one case component 10 has a flat portion in a region where no recess is formed, and when combined with the other case component 20, the other case component 20 is flat. The storage case 10 is in a closed state by contacting the part. Further, in one case constituent part 10, an uneven portion 16 for closing the lid is formed at the outer peripheral end of the main surface on the storage space side. In the present embodiment, with the first central axis CL1 as a boundary, one side is concave, the other side is convex, and when combined with the other case constituent part 20, the concave and convex portions for closing the parts 10 and 20 Will fit. Thereby, when the storage case 100 is made into a closed state, the shift | offset | difference of one case structure part 10 and the other case structure part 20 is prevented.

  The stacking concavo-convex portion 17 is fitted to each other when the stacking concavo-convex portion of the storage case constituent part 20 that is not inverted upside down and the stacking concavo-convex portion 17 of the storage case constituent part 10 inverted upside down are opposed to each other. It has a shape. Thereby, when stacking a plurality of storage cases 100, the uneven portions for stacking provided in the other adjacent storage cases 100 are fitted to each other, and the positional deviation between the adjacent storage cases is prevented and the stacked state is stable. To do.

  7 is a schematic view when stacking a plurality of storage cases 100, FIG. 8 is a partially enlarged view of the EE cross section in FIG. 7, and FIG. It is sectional drawing in the same position as FIG. 4 when the parts 10 are stacked. The other main surface (hereinafter referred to as the main surface 12a on the stacking side) where the stacking recess 17 is formed is adjacent to the other storage case 100. The stacking concavo-convex portion 17 is formed by arranging concave portions 17a and convex portions 17b in the longitudinal direction D2 in the vicinity of each corner of the substantially rectangular stacking-side main surface 12a. Even if one of the center line CL1 and the second center line CL2 is turned upside down as a rotation axis, adjacent stacking uneven portions are fitted to each other. Thereby, in the stacking operation, there is no inconvenience that the uneven portion for stacking does not fit depending on the posture of the storage case.

  One case constituent part 10 having the above configuration can be molded by blow molding using a general blow molding machine. That is, a pair of split molds are opened, and a cylindrical parison made of a thermoplastic resin material is positioned therebetween. Then, after clamping the pair of split molds, air is injected into the parison, and the parison is expanded by air pressure so as to be in close contact with the molding surface of each split mold. When the split mold is opened after the parison is cooled and solidified, and the molded product is taken out from the split mold, one case component 10 is completed.

  The molding surfaces of the pair of molding dies used here are provided with concavities and convexities that form a cavity corresponding to the outer shape of one case component part 10 when both molding dies are clamped. Since the part 10 and the other case component part 20 have the same shape, both case component parts can be molded using the same molding die. For this reason, a pair of molding dies used for manufacturing one storage case may be one kind, and the size may be a size corresponding to one case component part, so that it does not increase in size. Compared to technology, it can be manufactured at low cost.

  One case constituent part 10 manufactured in this way is used as follows. One case constituent part 10 is turned upside down to the second posture shown in FIG. 2, and the drive shaft S that is the object to be stored is stored in the storage recess 14. Subsequently, the other case constituent part 20 that has not been turned upside down is placed on one case constituent part 10 and closed. Accordingly, the drive shaft SS is accommodated between the two parts 10 and 20 having the same shape.

  When stacking the storage case 100 in which the live shaft SS is stored, the plurality of storage cases 100 are stacked in the vertical direction. At this time, the stacking uneven portions of the adjacent storage cases 100 are fitted to each other. This prevents misalignment during stacking and stabilizes the stacked state.

  In addition, the storage recessed part 14 of one case component part 10 is not limited to the above, What is necessary is just to make it the shape according to the external shape of the storage target object. For example, when storing a plurality of rectangular parallelepiped objects, a plurality of storage recesses 14 having a rectangular cross section may be arranged as shown in FIG. The storage recess 14 is also a target with respect to a central plane that bisects the storage space side wall portion 11 through the first center line CL1. Further, the concave-convex portion for closing 16 has a concave-convex portion for closure 16a that is convex at one end on the short side of the surface of the storage space side wall 11 and a concave portion at the end on the other short side. You may provide as the uneven | corrugated | grooved part 16b for a lid. Accordingly, when one of the pair of case component parts having the same shape is turned upside down to be in the first posture and combined with the case component part that is not inverted, a storage case having a storage space formed inside is obtained.

  Further, the stacking uneven portion 17 of the one case component 10 is not limited to the above. FIG. 11 is a schematic view showing the stacking side main surface 12a of one case component 10 for explaining another example of the stacking uneven portion 17 of another example. The stacking uneven portion 17 may have a circular cross section, for example. In this stacking uneven portion 17, the stacking uneven portion 17 a on one side is convex with the first center line CL 1 as a boundary, and the two stacking uneven portions 17 b on the other side are concave. When stacking one case component part 10 upside down and in the second position on another storage case, one case component part in the second position and the other case component part in the first position are adjacent, The uneven portions for stacking fit each other.

(Second embodiment)
FIG. 12A is a perspective view showing one case constituent part 10 of the storage case 200 of the second embodiment from the main surface 11a side on the storage space side, and FIG. It is a perspective view shown from the main surface 12a side. The storage case 200 is for storing a drive shaft (secondary shaft) SS of the vehicle. Note that description of points common to the above embodiment is omitted.

  The main difference from the above embodiment is the shape of the main surface 12a on the stacking side. One case constituent part 10 of the storage case 200 has a corrugated shape on the main surface 12a on the stacking side. The main surface 12a on the stacking side is formed by corrugating the opposing side wall portion 12, and a curved concave portion 17a whose top line extends in the short-side direction D1 and a curved surface whose bottom line extends in the short-side direction D1. The convex portions 17b are alternately arranged in the longitudinal direction D2 to form a wave shape. Further, a central concave portion 12b is formed in the longitudinal direction D2 on the main surface 12a on the stacking side, and the arrangement pattern of the concave portions 17a and the convex portions 17b is opposite in one region and the other region with the central concave portion 12b as a boundary. ing.

  The concave portion 17a and the convex portion 17b of the corrugated stacking-side main surface 12a serve as the stacking concave-convex portion 17. FIG. 13 is a perspective view for explaining a state when the secondary shaft SS is stored in one case constituent part 10 of the storage case 200 and stacked on the other storage case 200. When the storage case 200 is stacked, the corrugated stacking side main surface 12a of one case constituent part 10 and the corrugated stacking side main surface of the other case constituent part 20 of the storage case 200 directly below are fitted. And misalignment of each other is prevented. Further, the corrugated stacking-side main surfaces 12a are fitted to each other, so that the total stacking height is reduced, and space saving is achieved.

  The main surface 12a on the stacking side according to the present embodiment has a shape that fits when two adjacent storage cases 200 are rotated 180 degrees in the horizontal direction. That is, the main surface 12a on the stacking side is the stacking side of the other case constituent part 20 that is not inverted when the one storage case constituent part 10 is inverted up and down around the center line CL2 extending in the longitudinal direction D2. It is a shape fitted to the main surface. Since a different number of secondary shafts SS are arranged in each row in the storage case 200, this configuration can maintain a balance when stacking.

  Furthermore, the storage case 200 has an effect that the total height when stacked is reduced. FIG. 14 is a partial cross-sectional view when the storage case 200 is stacked. In the thickness direction (vertical direction) D3, the storage concave portion 14 extends into the convex portion 17b of the stacking concave / convex portion 17. Thereby, the inside of the convex part 17b is effectively utilized as a storage space, and further space saving in the thickness direction D3 is achieved.

(Third embodiment)
FIG. 15A is a perspective view showing one case constituent part 10 of the storage case 300 of the third embodiment from the side of the surface 11a on the storage space side, and FIG. 15B is a main view on the stacking side. It is a perspective view shown from the surface 12a side. The storage case 300 is for storing the drive shaft (primary shaft) PS of the vehicle. Note that description of points common to the above embodiment is omitted.

  FIG. 16A is a top view showing one case constituent part 10 of the storage case 300 from the main surface 11a side on the storage space side, and FIG. 16B is a side view thereof. A storage recess 14 corresponding to a plurality of arrangement patterns of the primary shaft PS is formed in the storage space side wall 11 of one case constituent part 10 of the storage case 300.

  The storage recess 14 of the storage case 300 is formed in a shape that can be arranged in a plurality of rows along the second center line CL2 in a posture in which the shaft portion PS1 of the primary shaft PS is substantially parallel to the first center line CL1. ing.

  Specifically, the first storage recess 141 and the second storage recess 142 are formed in a region on one side with the second center line LC2 as a boundary so that the primary shafts PS are alternately arranged in two rows. The first storage recess 141 is stored in such a posture that the disc part PS2 of the primary shaft PS is positioned on one long side of the main surface 11a on the storage space side, and the second storage recess 142 is the first storage recess 142 in which the disc part PS2 is the first one. It is stored in a posture positioned on the side of the two center lines CL2.

  Further, the third storage recess 143 and the fourth storage recess 144 are also formed in the region on the other side with the second center line LC2 as a boundary so that the primary shafts PP are alternately arranged in two rows. The third storage recess 143 is stored such that the disc part PS2 of the primary shaft PS is positioned on the other long side of the main surface 11a on the storage space side, and the disc part PS2 is stored in the fourth storage recess 144. It is stored in a posture located on the second center line CL2 side.

  FIG. 17 shows that the primary shaft PS is stored in the first arrangement pattern in one case constituent part 10, the primary shafts are arranged in the second arrangement pattern in the other storage case 300, and placed on the other storage case 300. FIG. 18 is a perspective view for explaining a state when one case component 10 is stacked, and FIG. 18 is a partial sectional view thereof.

  In the first arrangement pattern shown in one case component 10, a total of seven primary shafts PS are stored in the second storage recess 142 and the fourth storage recess 144. Further, in the second arrangement pattern shown in the other storage case 300, a total of eight primary shafts PS are stored in the first storage recess 141 and the fourth storage recess 144. That is, according to the present embodiment, a desired number of primary shafts PS can be stored by selecting and storing one of the plurality of array patterns.

  Further, the storage case 300 includes a detachable covering member 30 that covers a storage recess to be used in a place other than the desired arrangement pattern in order to ensure storage in the desired arrangement pattern. The covering member 30 is a long plate having an L-shaped cross section, and the covering member 30 is detachably attached to the long side end of the main surface 11a on the storage space side. When storing in the first arrangement pattern, as shown in FIG. 17, the second pattern is attached to both ends of the long side and covers a part of the first storage recess 141 and the third storage recess 143. Prevent storage in As described above, by using the covering member 30 that prevents the arrangement pattern other than the desired arrangement pattern, an arrangement error during the operation can be prevented.

  In addition, it is also possible to separately use a covering member that covers a part of the second storage recess 142 or the fourth storage recess 144. In this case, in order to prevent the first array pattern and ensure the storage in the second array pattern, the second storage recess 142 and the third storage recess 143 are covered with a covering member, etc. By appropriately combining the covering members that cover the storage recesses 141 to 144, it is possible to prevent storage in various arrangement patterns.

  Further, one case constituent part 10 of the storage case 200 is provided with two handle holes 18 penetrating in the thickness direction D near the center. As a result, it is possible to insert and hold a finger into the handle hole 18 when carrying or arranging one case component 10, thereby improving convenience.

  As mentioned above, although embodiment which applied this invention has been described, it cannot be overemphasized that this invention is not what is limited to the above-mentioned embodiment, In the range which does not deviate from the summary of this invention, a various change can be added. Is possible.

  For example, the shape of one case constituent part or the other case constituent part is not limited to the above-described embodiment, and may be other shapes. Further, in the above embodiment, one case component and the other case component are separate and have been described as an example of a type that is not connected, but one case component and the other case component are The present invention can also be applied to a type connected by a separate hinge. At this time, the hinge mounting location has the same shape in the same posture, and may be connected to the hinge when one of the hinges is turned upside down.

  The object to be stored is not limited to the drive shaft, and any object can be used as long as it can be stored. At this time, the storage recess may be appropriately designed so as to correspond to the outer shape and arrangement posture of the storage object.

  In addition, the storage recess may have a shape that forms a storage space when it is inverted up and down around the second centerline, for example, or the storage recess is formed when the storage space is rotated horizontally at a predetermined angle after being inverted upside down. The shape to be formed may be appropriately changed as long as the shape is the same in the same posture and the storage space is formed when one is turned upside down.

  In addition, the storage space side wall of one case component part may be formed only with a storage recess, or for the convenience of storing and taking out a storage object or a recess for a reinforcing rib in the thickness direction. A concave portion for inserting a finger and the other concave portion formed on the surface may be provided as necessary.

  Further, the uneven portion for stacking can be changed as appropriate. In the above embodiment, the stacking surface has a corrugated shape to form the stacking uneven portion, but the surface has a continuous U-shaped uneven shape, or other shape corresponding to the outer shape of the storage object, that is, It is also possible to have a shape corresponding to the storage recess.

100, 200, 300 Storage case 10 One case component 11 Storage space side wall 11a Storage space side main surface 12 Opposite side wall portion 12a Stacking side main surface 13 Four-side wall portion 14 Storage recess 15 Reinforcement rib 16 Unevenness for closure Portion 17 Stacking uneven portion 18 Handle hole 20 Other case component 30 Cover member SS Drive shaft (secondary shaft)
PS drive shaft (primary shaft)

Claims (4)

It is a hollow body formed by blow molding, and is a storage case constituting part in which a concave portion for stacking is formed on the other main surface while a storage concave portion is formed on one main surface,
A storage space is configured by inverting one of the pair of storage case components of the same shape upside down and arranging the storage recesses to face each other,
The stacking irregularities are shaped to fit together when the stacking irregularities of the storage case constituent parts that are not inverted upside down and the stacking irregularities of the storage case constituent parts that are inverted vertically are opposed to each other. It has been with,
A storage case constituent part , wherein the storage recess extends in a convex portion of the stacking uneven portion in a thickness direction .   2. The storage case component according to claim 1, wherein the uneven portion for stacking is formed by forming the other main surface into a corrugated shape. The storage case component according to claim 1 , wherein the storage recess has a shape corresponding to a plurality of arrangement patterns of storage objects. It is a hollow body formed by blow molding, and is a storage case provided with a storage case constituting part in which a storage recess is formed on one main surface and a stacking uneven portion is formed on the other main surface,
A storage space is configured by flipping one of the pair of storage case components of the same shape upside down and arranging the storage recesses to face each other.
The stacking irregularities are shaped to fit together when the stacking irregularities of the storage case constituent parts that are not inverted upside down and the stacking irregularities of the storage case constituent parts that are inverted vertically are opposed to each other. It has been with,
The storage case , wherein the storage recess extends in a convex portion of the stacking uneven portion in the thickness direction .

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