Containers for automated warehouses and automated warehouses

Abstract

To suppress charging and damage to corner parts of a bottom part of a container for an automatic warehouse.SOLUTION: A container 10 for an automatic warehouse has a bottom surface that slides with respect to a placement surface in an automatic warehouse 70. The container 10 for an automatic warehouse comprises: a housing part 20 which is formed of a plastic cardboard as a material and has a bottom plate part 22 and a plurality of side plate parts 24; and a charging suppression plate 60 provided on an outer surface of the bottom plate part 22. The charging suppression plate 60 has an outward-pointing surface 62 that functions as the bottom surface. The outward-pointing surface 62 includes an inclined surface part 64 at an outer edge part thereof. The surface resistivity of the charging suppression plate 60 is lower than the surface resistivity of the bottom plate part 22.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a container for an automated warehouse and an automated warehouse. [Background technology]

[0002] Patent Document 1 discloses an easily assembled storage box consisting of a bottom plate made of plastic corrugated cardboard, a housing having multiple side plates, corner members fixed to the corners of the upper edges of adjacent side plates, and edge members attached to the upper edges of the side plates. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2009-166894 A Summary of the Invention [Problem to be solved by the invention]

[0004] In an automated warehouse, when a container is stored in a storage section and when a container is removed from a storage section, the container may slide against the placement surface of the automated warehouse. If a container made of plastic corrugated cardboard (also called corrugated plastic) such as the simple assembly type storage box described in Patent Document 1 is used as the container, the container may become electrified by sliding against the placement surface of the automated warehouse. In addition, the bottom of the container may come into contact with surrounding members during transportation, causing damage to the corners, etc.

[0005] Therefore, an object of the present disclosure is to suppress static electricity and damage to the bottom corners of containers for automated warehouses. [Means for solving the problem]

[0006] In order to solve the above problems, the container for an automated warehouse is a container for an automated warehouse having a bottom surface that slides against a loading surface in the automated warehouse, and is equipped with a housing portion formed from corrugated plastic and having a bottom plate portion and multiple side plate portions, and a charge suppression plate provided on the outer surface of the bottom plate portion, the charge suppression plate has an outward surface that functions as the bottom surface, the outward surface including an inclined surface portion at the outer edge portion, and the surface resistivity of the charge suppression plate is lower than the surface resistivity of the bottom plate portion. Effect of the Invention

[0007] According to this automated warehouse container, the outward surface of the charge suppression plate with low surface resistivity forms the bottom surface of the automated warehouse container, thereby suppressing static electricity in the automated warehouse container. Also, by providing an inclined surface portion on the outer edge of the charge suppression plate, damage to the corners of the bottom of the automated warehouse container can be suppressed. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a plan view showing a container for an automated warehouse according to an embodiment of the present invention. [Diagram 2] FIG. 1 is a front view showing a container for an automated warehouse according to an embodiment of the present invention. [Diagram 3] FIG. 1 is a side view showing a container for an automated warehouse according to an embodiment. [Figure 4] This is a cross-sectional view showing two automated warehouse containers stacked on top of each other. [Diagram 5] FIG. 2 is a partially cutaway perspective view showing corrugated plastic. [Figure 6] FIG. [Figure 7] 13A and 13B are diagrams illustrating how the housing is assembled. [Figure 8] 1 is a schematic side view showing an example of an automated warehouse in which an automated warehouse container is used. [Figure 9] FIG. 2 is a schematic plan view showing an automated warehouse. [Figure 10] FIG. 2 is a schematic perspective view showing an article transfer device. [Figure 11] FIG. 2 is a schematic plan view showing the flow of stored items in an automated warehouse. [Figure 12] FIG. 2 is a schematic side view showing the flow of stored items in an automated warehouse. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an automatic warehouse container according to an embodiment will be described. FIG. 1 is a plan view showing an automatic warehouse container 10 according to an embodiment. FIG. 2 is a front view showing an automatic warehouse container 10 according to an embodiment. FIG. 3 is a side view showing an automatic warehouse container 10 according to an embodiment. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3. In FIG. 4, another automatic warehouse container 10 is shown by a virtual line, showing a state in which a group of multiple automatic warehouse containers 10 are stacked.

[0010] The container 10 for an automated warehouse (hereinafter, sometimes simply referred to as the container 10) is transported while sliding in the automated warehouse 70 (see FIG. 8). The bottom surface of the container 10 slides against the placement surface in the automated warehouse 70. The container 10 includes a housing unit 20 and an electrostatic charge suppression plate 60.

[0011] The housing 20 has a bottom plate 22 and a plurality of side plate portions 24. The plurality of side plate portions 24 protrude from the bottom plate portion 22. The surface of the bottom plate portion 22 from which the side plate portion 24 protrudes is the inner surface on which the article 100 is placed, and the opposite surface is the outer surface.

[0012] The shape and size of the housing 20 are not particularly limited and can be set appropriately. For example, the planar shape of the bottom plate 22 may be rectangular. In this example, the planar shape of the bottom plate 22 is rectangular. The side plate 24 protrudes from each of the four outer edges corresponding to each side of the rectangular bottom plate 22. Thus, in this example, four side plate 24 protrude from one bottom plate 22. The protruding dimensions from the bottom plate 22 of the four side plate 24, that is, the height dimensions, are the same. Hereinafter, of the four side plate 24, the two side plate 24 protruding from the long side of the bottom plate 22 may be referred to as side plate 24A, and the two side plate 24 protruding from the short side of the bottom plate 22 may be referred to as side plate 24B. The side plate 24 may have a through hole 25 that serves as a handle of the container 10. In this example, the side plate 24B may have a through hole 25.

[0013] In this example, the bottom plate portion 22 and the side plate portion 24 are formed from the same type of plate material, so the thickness of the bottom plate portion 22 and the thickness of the side plate portion 24 are the same. Also, in this example, the housing portion 20 is formed flat. The size of the plane of the bottom plate portion 22 is larger than the size of the plane of any of the multiple side plate portions 24. The surface area of ​​the bottom plate portion 22 is larger than the total surface area of ​​the multiple side plate portions 24. The height dimension of the side plate portion 24 is smaller than the length dimension of the short side of the bottom plate portion 22. The height dimension of the side plate portion 24 is less than one-quarter of the length dimension of the short side of the bottom plate portion 22.

[0014] The housing 20 is made of corrugated plastic. The corrugated plastic will be described with reference to Fig. 5. Fig. 5 is a partially cutaway perspective view showing the corrugated plastic 30.

[0015] The corrugated plastic 30 is made of a resin material such as polypropylene or polycarbonate. The corrugated plastic 30 is hollow, and thus has high rigidity for its weight. The corrugated plastic 30 has a pair of flat plate portions 32 and a connecting portion 34.

[0016] Each flat portion 32 is formed in a flat plate shape with flat surfaces. The pair of flat portions 32 are separated from each other. The pair of flat portions 32 are parallel to each other. The connecting portion 34 is provided between the pair of flat portions 32. The connecting portion 34 connects the pair of flat portions 32. The planar shape of the connecting portion 34 is smaller than the planar shape of the flat portions 32. The connecting portion 34 connects a portion of the pair of flat portions 32. Between the pair of flat portions 32, a portion where the connecting portion 34 is not present is defined as a gap 36. In the corrugated plastic 30, a space surrounded by the flat portions 32 and the connecting portion 34 is generated.

[0017] In this example, a so-called honeycomb structure is adopted as the connecting portion 34. Specifically, the connecting portion 34 has a plurality of tubular portions 35 whose cross section is hexagonal. The plurality of tubular portions 35 are arranged so that the axial direction of each tubular portion 35 is aligned along the direction in which the pair of flat plate portions 32 are aligned. One end of each tubular portion 35 is connected to one of the pair of flat plate portions 32, and the other end of each tubular portion 35 is connected to the other of the pair of flat plate portions 32. In the corrugated plastic 30, one gap 36 surrounded by one tubular portion 35 and the pair of flat plate portions 32 is independent from the gap 36 surrounded by the other tubular portion 35 and the pair of flat plate portions 32. In the corrugated plastic 30, a plurality of gaps 36 independent of each other are formed. In the corrugated plastic 30, each gap 36 is a closed space.

[0018] However, other structures may be used instead of the honeycomb structure for the connecting portion 34. For example, the connecting portion 34 may have a plurality of plate portions parallel to each other. In this case, the cross section of the corrugated plastic 30 has a ladder shape.

[0019] The manner in which the housing 20 is manufactured from the corrugated plastic 30 will be described with reference to Figs. 6 and 7. Fig. 6 is a development view of the housing 20. Fig. 7 is a view for explaining the manner in which the housing 20 is assembled. Note that the manufacturing method for the housing 20 described below is one example, and the housing 20 may be manufactured by other manufacturing methods.

[0020] First, as shown in Fig. 6, three base materials 38, 39, 39 made of corrugated plastic 30 are prepared. One base material 38 has a size corresponding to the bottom plate portion 22 and the pair of side plate portions 24A. The two base materials 39, 39 each have a size corresponding to the side plate portion 24B.

[0021] In the base material 38, a fold 38a is formed between the bottom plate portion 22 and the side plate portion 24A. In the example shown in Fig. 7, a notch is formed as the fold 38a. A cut at an angle of 45 degrees to the flat plate portion 32 is made from the bottom plate portion 22 side and the side plate portion 24A side. The cut on the bottom plate portion 22 side and the cut on the side plate portion 24A side intersect at an intermediate portion along the thickness direction of the base material 38, so that a part of the bottom plate portion 22 and a part of the side plate portion 24A are cut out to form the fold 38a.

[0022] The base material 38 is folded at the crease 38a. The cut-out portion of the side plate portion 24A contacts the cut-out portion of the bottom plate portion 22. The contacting portions are welded to maintain the side plate portion 24A protruding from the bottom plate portion 22 so as to be perpendicular to the bottom plate portion 22. The cuts in the bottom plate portion 22 and the cuts in the side plate portion 24A may reach the outer surface of the flat plate portion 32, and the bottom plate portion 22 and the side plate portion 24A may be completely separated.

[0023] The two base materials 39, 39 are fitted between the bottom plate portion 22 and the pair of side plate portions 24A. The portions where the base material 38 and the base material 39 contact each other (portions where the side plate portion 24B contacts the bottom plate portion 22 and the pair of side plate portions 24A) are resin-welded, and the housing portion 20 is completed.

[0024] In FIG. 4, among these welds, a weld W1 between the bottom plate portion 22 and the side plate portion 24A is shown by an imaginary line.

[0025] In the container 10, the casing portion 20 is provided with an upper end reinforcing member 40 and a corner reinforcing member 50. The upper end reinforcing member 40 reinforces the upper end portion of the casing portion 20. The corner reinforcing member 50 reinforces the corner portions of the casing portion 20. The upper end reinforcing member 40 is provided on each of the four side plate portions 24. The corner reinforcing member 50 is provided on each of the four corner portions where the side plate portion 24A and the side plate portion 24B intersect.

[0026] The upper end reinforcement member 40 has a ceiling wall 42, an inner wall 43, and an outer wall 44. The portion surrounded by the ceiling wall 42, the inner wall 43, and the outer wall 44 forms a groove 46. The groove 46 extends in a straight line. The upper end of the side plate portion 24 fits into the groove 46. The ceiling wall 42 is located above the side plate portion 24. The ceiling wall 42 covers the upper end face of the side plate portion 24. The inner wall 43 is located inside the side plate portion 24. The inner wall 43 covers the inner surface of the side plate portion 24. The outer wall 44 is located outside the side plate portion 24. The outer wall 44 covers the outer surface of the side plate portion 24. The upper end reinforcement member 40 is formed slightly shorter than the side plate portion 24 that fits into its groove 46.

[0027] The corner reinforcement member 50 has a ceiling wall 52, an inner wall 53, an outer wall 54, and a rib 58. The portion surrounded by the ceiling wall 52, the inner wall 53, and the outer wall 54 forms a groove 56. The groove 56 extends in an L-shape. A corner portion of the housing portion 20 fits into the groove 56. The side plate portion 24A fits into one end of the L-shaped groove 56, and the side plate portion 24B fits into the other end of the L-shaped groove 56. The ceiling wall 52 is located above the side plate portion 24. The ceiling wall 52 covers the tip surface of the side plate portion 24. The inner wall 53 is located inside the side plate portion 24. The inner wall 53 covers the inner surface of the side plate portion 24. The outer wall 54 is located outside the side plate portion 24. The outer wall 54 covers the outer surface of the side plate portion 24.

[0028] The rib 58 protrudes upward from the ceiling wall 52. The rib 58 is provided outside the housing portion 20, similar to the outer wall 54. The outer surface of the rib 58 is flush with the outer surface of the outer wall 54. The height dimension of the rib 58 (the protruding dimension from the ceiling wall 52) is equal to or smaller than the height dimension of the portion of the container 10 below the corner reinforcement member 50. When multiple containers 10 are stacked, the bottom surface of the upper container 10 is placed on the top surface of the ceiling wall 52 of the lower container 10. When multiple containers 10 are stacked, the lower end surface of the outer wall 54 of the upper container 10 does not contact the upper end surface of the rib 58 of the lower container 10.

[0029] Here, the end of the upper end reinforcing member 40 fits into the groove 56 of the corner reinforcing member 50. One end of the upper end reinforcing member 40 fits into the groove 56 of one corner reinforcing member 50, and the other end of the upper end reinforcing member 40 fits into the groove 56 of another corner reinforcing member 50.

[0030] The upper end reinforcing member 40 and the corner reinforcing member 50 are made of resin or metal. The upper end reinforcing member 40 and the corner reinforcing member 50 may be made of the same type of material, or may be made of different types of materials. For example, the upper end reinforcing member 40 may be made of metal, and the corner reinforcing member 50 may be made of resin.

[0031] The upper end reinforcement member 40 and the corner reinforcement member 50 are fixed to the housing 20 via rivets R. The rivets R are provided at the portions where the upper end reinforcement member 40 and the corner reinforcement member 50 overlap. The upper end reinforcement member 40 and the corner reinforcement member 50 are fixed by a common rivet R. The tip of the rivet R penetrates the outer walls 54, 44 from the outside of the outer wall 54 and engages inside the side plate 24. The tip of the rivet R does not penetrate the inner walls 43, 53 and is not exposed on the inner surface side of the housing. A through hole may be formed in advance in the outer walls 54, 44 at the portions where the tip of the rivet R penetrates.

[0032] It is not essential that the upper end reinforcing member 40 and the corner reinforcing member 50 are provided in the housing unit 20. Either or both of the upper end reinforcing member 40 and the corner reinforcing member 50 may be omitted. Furthermore, the upper end reinforcing member 40 and the corner reinforcing member 50 may be fixed in a manner other than the rivet R, such as with an adhesive.

[0033] The charge suppression plate 60 is provided on the outer surface of the bottom plate portion 22. In the container 10, the charge suppression plate 60 forms the bottom surface that slides against the automated storehouse 70.

[0034] The surface resistivity of the charge suppression plate 60 is lower than that of the bottom plate portion 22. For example, the charge suppression plate 60 is made of a resin containing a conductive filler. The conductive filler is, for example, a powder of a conductor such as carbon or metal. The corrugated plastic 30 does not contain a conductive filler, or even if it does, the amount of conductive filler is less than that of the charge suppression plate 60, so that the surface resistivity of the bottom plate portion 22 is higher than that of the charge suppression plate 60.

[0035] For example, the surface resistivity of the charge suppression plate 60 is 1.0×10 5 Ω / □ to 1.0×10 14 The corrugated plastic 30 may have a surface resistivity in the range of 1.0×10 14 The surface resistivity of the charge suppression plate 60 may be greater than 1.0×10 8 Ω / □ to 1.0×10 14 The corrugated plastic 30 may be in the range of Ω / □. The static suppression plate 60 may belong to a so-called antistatic grade. The corrugated plastic 30 may belong to a so-called insulating grade. The corrugated plastic 30 does not need to be as conductive as the static suppression plate 60, so it can be made of a cheaper material.

[0036] The charge suppression plate 60 becomes positively charged when it rubs against the corrugated plastic 30, and becomes negatively charged when it rubs against a support surface made of an iron-based material. In the triboelectric series, the charge suppression plate 60 is located between the corrugated plastic 30 and the support surface. Note that human skin becomes positively charged when it rubs against a support surface made of an iron-based material. The corrugated plastic 30, the charge suppression plate 60, the support surface made of an iron-based material, and human skin are arranged in the triboelectric series in that order, from the side that is most likely to become negatively charged.

[0037] The shape and size of the charge suppression plate 60 are not particularly limited and can be set appropriately. In this example, the charge suppression plate 60 is solid. The charge suppression plate 60 may be hollow like the corrugated plastic 30. In this example, the charge suppression plate 60 is rectangular corresponding to the bottom plate 22. The charge suppression plate 60 may be a shape other than rectangular. The charge suppression plate 60 is smaller than the outer surface of the bottom plate 22. The outer surface of the bottom plate 22 is the same size as a rectangle connecting the outer surfaces of the multiple side plate portions 24. The outer surface of the bottom plate 22 is larger than the inner edges of the upper ends of the multiple side plate portions 24. The charge suppression plate 60 is the same as or smaller than the inner edges of the upper ends of the multiple side plate portions 24. The outer surface of the bottom plate 22 is larger than the rectangle connecting the inner surfaces of the multiple side plate portions 24. The charge suppression plate 60 is the same as or smaller than the rectangle connecting the inner surfaces of the multiple side plate portions 24. The static electricity suppression plate 60 is equal to or smaller than a rectangle connecting the inner faces of the inner walls 53 of the corner reinforcement members 50 .

[0038] The thickness of the charge suppression plate 60 is a predetermined value (e.g., 2 mm) or more. This raises the bottom of the housing 20, and prevents the bottoms of the bottom plate 22 and the side plate 24 from being damaged by contact with a part of the automated warehouse. The thickness of the charge suppression plate 60 may be thicker or thinner than the bottom plate 22. The thickness of the charge suppression plate 60 may be the same as the thickness of the bottom plate 22. The thickness of the charge suppression plate 60 may be thicker or thinner than the flat plate 32. The thickness of the charge suppression plate 60 may be the same as the thickness of the flat plate 32. The thickness of the charge suppression plate 60 is preferably 3 mm or more. As the thickness of the charge suppression plate 60 increases, the amount by which the bottom of the housing 20 is raised increases, and the rigidity of the charge suppression plate 60 itself increases. There is no particular upper limit to the thickness of the charge suppression plate 60, but from the viewpoint of suppressing the height of the container 10, it is preferably 40 mm or less.

[0039] The charge suppression plate 60 has an inward surface 61 and an outward surface 62. The inward surface 61 is a surface that faces toward the bottom plate portion 22. The outward surface 62 is a surface that faces the opposite direction to the inward surface 61. The inward surface 61 is flat overall. The entire inward surface 61 contacts the outer surface of the bottom plate portion 22. The outward surface 62 has a flat surface portion 63 and an inclined surface portion 64. The outer edge of the outward surface 62 is the inclined surface portion 64. The portion surrounded by the inclined surface portion 64 is the flat surface portion 63.

[0040] Here, the inclined surface portions 64 surround the flat surface portion 63 on all four sides. This allows the inclined surface portions 64 to face forward in the transport direction regardless of the direction in which the container 10 is transported. The inclined surface portions 64 may be provided on three or fewer sides of the flat surface portion 63. It is preferable that at least two of the sides, the front and rear, in the transport direction are inclined surface portions 64. The flat surface portion 63 is smaller than the inward surface 61. The inclined surface portions 64 incline from the outer edge of the flat surface portion 63 toward the outer edge of the inward surface 61.

[0041] 4, the angle of the inclined surface portion 64 (the angle between the inclined surface portion 64 and the inward surface 61) is 45 degrees. However, the angle of the inclined surface portion 64 is not particularly limited and can be set as appropriate. For a charge suppression plate 60 of the same size, if the angle of the inclined surface portion 64 is increased, the flat surface portion 63 will be larger and the inclined surface portion 64 will be smaller. Furthermore, for a charge suppression plate 60 of the same size, if the angle of the inclined surface portion 64 is decreased, the flat surface portion 63 will be smaller and the inclined surface portion 64 will be larger.

[0042] The bottom plate 22 and the charge suppression plate 60 are fixed by welding. The outer edge of the charge suppression plate 60 is welded. The middle part of the charge suppression plate 60 is not welded. In Fig. 4, the welded part W2 between the bottom plate 22 and the charge suppression plate 60 is shown by a phantom line.

[0043] For example, the charge suppression plate 60 before welding may be a flat plate in which both the inward surface 61 and the outward surface are flat and of the same size. When the charge suppression plate 60 is welded to the bottom plate 22, the outer edge of the generally flat outward surface may be thermally deformed to form the inclined surface 64. In this case, if the thickness of the charge suppression plate 60 is equal to or greater than a predetermined value (e.g., 2 mm), it is easy to provide the inclined surface 64 on the charge suppression plate 60. For example, for inclined surface portions 64 of the same angle, the thicker the charge suppression plate 60 is, the larger the area of ​​the inclined surface portion 64 becomes, and the area of ​​the welded portion between the charge suppression plate 60 and the bottom plate 22 becomes larger accordingly.

[0044] The area of ​​the charge suppression plate 60 is smaller than the area of ​​the bottom of the housing 20. This ensures that the welded portion when welding the outer edge of the charge suppression plate 60 to the housing 20 is located inside the side plate 24, which contributes to improving manufacturability during welding.

[0045] The entire portion of the bottom surface of container 10 that comes into contact with the placement surface is made up of charge suppression plate 60. The portion of the bottom surface that comes into contact with the placement surface is used as a sliding surface. The entire sliding surface is made up of charge suppression plate 60. The portion of the bottom surface made up of charge suppression plate 60 is flat. Here, in charge suppression plate 60, flat surface portion 63 of outward surface 62 serves as the sliding surface.

[0046] In the automated storehouse 70, the containers 10 are repeatedly stored and retrieved. As a result, the charge suppression plate 60 slides repeatedly. The charge suppression plate 60 has the rigidity and abrasion resistance to withstand the repeated sliding in the automated storehouse 70. In the automated storehouse 70, the bottom plate portion 22 does not slide as much as the charge suppression plate 60. The bottom plate portion 22 does not need to have the rigidity and abrasion resistance to withstand the repeated sliding as much as the charge suppression plate 60.

[0047] <Automated warehouse> The automated warehouse 70 will now be described. Fig. 8 is a schematic side view showing an example of the automated warehouse 70 in which the container 10 is used, and Fig. 9 is a schematic plan view showing the automated warehouse 70. Fig. 10 is a schematic perspective view showing an article transfer device 76.

[0048] In the automated warehouse 70, the items 100 (see FIG. 12) are transported and stored in containers 10. Hereinafter, the items 100 stored in the containers 10 may be referred to as stored objects 102. The items 100 stored in the containers 10 are, for example, electronic components.

[0049] The automated warehouse 70 includes a storage section 71 and an article transfer device 76. The automated warehouse 70 further includes a temporary storage shelf 84, a lifting device 88, and a conveyor 92. The storage section 71 is an example of a storage shelf. In addition, the article transfer device 76, the temporary storage shelf 84, the lifting device 88, and the conveyor 92 are an example of a transport section.

[0050] The storage section 71 is provided on at least one side of the running path 73 of the article transfer device 76. Here, a pair of storage sections 71 are provided on both sides of the running path 73. The storage section 71 has multiple tiers of shelves 72 supported at intervals in the vertical direction. The shelves 72 in each tier can support stored objects 102. The shelves 72 in each tier can also support multiple stored objects 102. Therefore, when viewed as a whole, the multiple stored objects 102 are stored in a state of being arranged up, down, left, and right. In the storage section 71, the space in which the stored objects 102 are stored is the storage space. Therefore, in the storage section 71, multiple storage spaces are formed that are lined up along the movement direction of the article transfer device 76 traveling on the running path 73. Each storage space may be continuous without any partitions, or may be partitioned.

[0051] The running path 73 is provided along the extension direction of the storage sections 71, here between the pair of storage sections 71, along the extension direction therebetween. The running path 73 is provided along the extension direction of the storage sections 71 and up to the temporary storage shelf 84. The running paths 73 are provided corresponding to each of the upper and lower multiple shelves 72. Each running path 73 may be configured to include, for example, a pair of rails 74. The rails 74 may also serve as a horizontal frame of the storage section 71, or may be configured as a separate body from the storage section 71.

[0052] The article transfer device 76 is a device also called a picker, and is configured to be able to travel back and forth on the travel path 73. The article transfer device 76 has a dolly 77, a support base 78, and an article loading / unloading mechanism 79. The dolly 77 travels along the rails 74. The support base 78 and the article loading / unloading mechanism 79 are supported by the dolly 77. The article loading / unloading mechanism 79 loads and unloads stored items 102 between the support base 78 and the storage section 71 or the temporary shelf 84. The article transfer device 76 traveling on the travel path 73 can load and unload stored items 102 to and from both of the pair of storage sections 71.

[0053] In this example, a description will be given of an example in which a plurality of travel paths 73 and a plurality of article transfer devices 76 are provided corresponding to each of the upper and lower shelves 72, but this is not essential. For example, one travel path 73 common to the upper and lower shelves 72 may be provided, and a transfer cart may run on the travel path 73. In this case, a lifting mechanism may be provided on the transfer cart so that the stored items 102 can be put in and taken out of the upper and lower shelves 72. Also, a plurality of transfer carts may run on one travel path 73.

[0054] The object insertion / removal mechanism 79 includes, for example, a pair of arms 80 and a hook piece 81. The pair of arms 80 are configured to be extendable and retractable from both sides of the support base 78 toward the storage section 71 or the temporary storage shelf 84. The hook piece 81 is configured at the end of the pair of arms 80 to be able to rise and fall between a position protruding toward the pair of arms 80 and a position retracted from the protruding position.

[0055] In the article transfer device 76 , a drive section of the cart 77 , a drive section of the arm 80 , a drive section of the hook piece 81 , and the like may be supported by the cart 77 .

[0056] The temporary storage shelf 84, the lifting device 88, and the conveyor 92 are provided in a part of the extension direction of the storage section 71. In this example, the temporary storage shelf 84, the lifting device 88, and the conveyor 92 for receiving are provided at one end of each of the pair of storage sections 71. Also, the temporary storage shelf 84, the lifting device 88, and the conveyor 92 for retrieval are provided at the other end of each of the pair of storage sections 71. The temporary storage shelf 84, the lifting device 88, and the conveyor 92 may be provided in the middle of the pair of storage sections 71 in the longitudinal direction. The temporary storage shelf 84, the lifting device 88, and the conveyor 92 do not need to be divided into those for receiving and those for retrieval, and may be used for both receiving and retrieval.

[0057] The temporary storage shelf 84 is a device that relays the stored items 102 between the lifting device 88 and the article transfer device 76. The temporary storage shelf 84 is provided with a plurality of temporary storage tables 85 corresponding to the plurality of shelves 72, respectively. The plurality of temporary storage tables 85 are provided at positions adjacent to the storage section 71 and at the same height as the corresponding shelves 72. Therefore, the article transfer device 76 provided corresponding to each shelf 72 can transfer the stored items 102 to the temporary storage tables 85 and shelves 72 at the level of that shelf 72.

[0058] The lifting device 88 is a device for lifting and lowering the stored object 102, and includes a lifting platform 89 that lifts and lowers while supporting the stored object 102. The lifting platform 89 is driven to lift and lower by a lifting mechanism 90. The lifting mechanism 90 may have, for example, a motor and a sprocket or a circulating belt, and the sprocket or the circulating belt is rotated by rotating the motor, thereby lifting and lowering the lifting platform 89 connected to the sprocket or the circulating belt. When the lifting platform 89 is driven to lift and lower, the lifting platform 89 is moved up and down to a position next to the temporary storage shelf 84 and corresponding to each of the multiple temporary storage tables 85. When the lifting platform 89 is adjacent to one of the temporary storage tables 85 at a height position corresponding to the temporary storage table 85, the stored object 102 can be transferred by moving horizontally between the lifting platform 89 and the temporary storage table 85.

[0059] The conveyor 92 transports the stored object 102 toward the lifting device 88. The lifting platform 89 and the conveyor 92 are adjacent to each other at corresponding height positions, so that the stored object 102 can be transferred by moving horizontally between the lifting platform 89 and the conveyor 92. The conveyor 92 may be a belt conveyor or a roller conveyor.

[0060] The control unit 94 controls the traveling operation of the article transfer device 76 and the loading and unloading operation of the stored items 102, the transfer operation on the temporary storage shelf 84, the lifting and lowering operation and transfer operation of the lifting device 88, and the transfer operation on the conveyor 92. In this automated warehouse 70, the stored items 102 are stored and removed under the control of the control unit 94.

[0061] <Flow of stored items 102 in the automated warehouse 70> The flow of stored items 102 in the automated warehouse 70 will be described with further reference to Figures 11 and 12. Figure 11 is a schematic plan view showing the flow of stored items 102 in the automated warehouse 70. Figure 12 is a schematic side view showing the flow of stored items 102 in the automated warehouse 70.

[0062] In the automated warehouse 70, the stored items 102 are transferred between the shelves 72 and the support tables 78, between the support tables 78 and the temporary placement tables 85, between the temporary placement tables 85 and the lifting table 89, and between the lifting table 89 and the conveyor 92. In the automated warehouse 70, the placement surfaces on which the containers 10 are placed are the upper surfaces of the shelves 72, the support tables 78, the temporary placement tables 85, the lifting table 89, and the conveyor 92.

[0063] In this example, the temporary placement table 85 and the lifting table 89 have the function of moving the stored object 102 in the same manner as the conveyor 92. In this example, the temporary placement table 85, the lifting table 89, and the conveyor 92 are each a roller conveyor. The roller conveyor has multiple rollers. At least one of the multiple rollers is a drive roller that can be driven to rotate. The drive roller is driven to rotate, and thereby the stored object 102 moves on the roller conveyor. Since the temporary placement table 85, the lifting table 89, and the conveyor 92 are each a roller conveyor, the stored object 102 can be directly transferred by the roller conveyor between the temporary placement table 85 and the lifting table 89, and between the lifting table 89 and the conveyor 92, without the intervention of another transfer device. At this time, the flat surface portion 63 of the container 10 slides against the roller. Since there is an inclined surface portion 64 around the flat surface portion 63, the bottom of the container 10 is less likely to get caught on the rollers or its surrounding members.

[0064] The shelf 72 and the support table 78 are not roller conveyors or the like, and do not have a function of moving the stored object 102. Therefore, between the shelf 72 and the support table 78, the stored object 102 is transferred via another transfer device. Furthermore, the support table 78 and the temporary placement table 85 are aligned in a direction perpendicular to the direction in which the stored object 102 flows on the temporary placement table 85 by the roller conveyor when the stored object 102 is transferred. Therefore, between the support table 78 and the temporary placement table 85, the stored object 102 is transferred via another transfer device. In this example, between the shelf 72 and the support table 78, and between the support table 78 and the temporary placement table 85, the stored object 102 is transferred via the object insertion / removal mechanism 79 of the object transfer device 76. At this time, in the container 10, the flat surface portion 63 slides against the flat upper surfaces of the shelf 72 and the support table 78. The inclined surface portion 64 around the flat surface portion 63 makes it difficult for the bottom of the container 10 to get caught on the shelf 72, the support table 78, the temporary placement table 85, or the surrounding members.

[0065] Focusing on the stored object 102 to be stored, the stored object 102 is transferred to the lifting device 88 by the storing conveyor 92 or the like. The lifting device 88 then raises and lowers the stored object 102 to a position corresponding to a certain level of the shelf 72 on which the stored object 102 is stored. After this, the stored object 102 supported by the lifting platform 89 is transferred to the temporary storage shelf 84. The stored object 102 supported by the temporary storage shelf 84 is transferred to the article transfer device 76. The article transfer device 76 travels on the travel path 73 while supporting the stored object 102, and moves toward the planned storage position of the stored object 102 in the storage section 71. When the article transfer device 76 reaches the planned storage position, the stored object 102 is transferred from the article transfer device 76 to the storage section 71, and the stored object 102 is stored in the storage section 71.

[0066] Focusing on the stored object 102 to be retrieved, the article transfer device 76 on a certain stage of the shelf 72 corresponding to the storage position of the stored object 102 travels to a position corresponding to the storage position of the stored object 102. After this, the article transfer device 76 takes in the stored object 102 from the storage section 71. The article transfer device 76 that has taken in the stored object 102 moves toward the temporary storage shelf 84 for retrieval and transfers the stored object 102 to the temporary storage shelf 84. The lifting device 88 for retrieval raises and lowers the lifting platform 89 to the position of the stage of the shelf 72 corresponding to the stored object 102 to be retrieved. Then, the stored object 102 on the temporary storage shelf 84 at the stage of the shelf 72 is transferred to the lifting platform 89. The lifting device 88 for retrieval moves the lifting platform 89 to the height position of the conveyor 92 for retrieval and transfers the stored object 102 to the conveyor 92 for retrieval. The stored items 102 are removed to the outside by an output conveyor 92.

[0067] When the article transfer device 76 takes in the stored object 102 on the storage unit 71 or the temporary placement table 85, the article transfer device 76 travels along the travel path 73 to a position facing the storage unit 71 or the temporary placement table 85. In this state, when the pair of arms 80 extend toward the storage unit 71 or the temporary placement table 85, the pair of arms 80 are positioned on both outer sides of the stored object 102 on the storage unit 71 or the temporary placement table 85. In this state, when the hook piece 81 in the retracted position changes its position to the protruding position, the hook piece 81 is positioned on the opposite side of the article transfer device 76 with respect to the stored object 102. In this state, when the pair of arms 80 retract while contracting, the stored object 102 on which the hook piece 81 is hooked moves as if it is pushed toward the support table 78. As a result, the stored object 102 is transferred from the storage unit 71 or the temporary placement table 85 toward the article transfer device 76 as if it is retracted.

[0068] When the article transfer device 76 transfers the stored object 102 on the support base 78 onto the shelf 72 or the temporary storage table 85, the article transfer device 76 which has taken in the stored object 102 moves along the travel path 73 and moves to a position opposite a predetermined intended storage position on the shelf 72 or the temporary storage table 85. Thereafter, when the pair of arms 80 extend and move forward toward the shelf 72 or the temporary storage table 85 with the hook pieces 81 on the opposite side of the transfer direction protruding, the stored object 102 on which the hook pieces 81 are hooked moves as if pushed toward the shelf 72 or the temporary storage table 85. As a result, the stored object 102 on the article transfer device 76 is transferred as if pushed from the article transfer device 76 toward the storage section 71 or the temporary storage table 85.

[0069] <Effects, etc.> In the automated warehouse container 10 configured in this manner and the automated warehouse 70 equipped with the same, the bottom surface of the automated warehouse container 10 is formed of the charge suppression plate 60 having a surface resistivity lower than that of the bottom plate portion 22. Therefore, compared to when the bottom plate portion 22 forms the bottom surface of the container 10, the amount of charge is less likely to increase when rubbed, and the charged static electricity can be dissipated relatively quickly. As a result, charging of the container 10 is suppressed compared to when the bottom surface of the bottom plate portion 22 made of corrugated plastic 30 slides against the placement surface in the automated warehouse 70.

[0070] In particular, because the bottom plate portion 22 is larger than the side plate portions 24 and has a flat surface, when the bottom plate portion 22 forms the bottom surface of the container 10, the area that rubs against it during sliding becomes large. In addition, the bottom plate portion 22 is made of an insulating resin material such as polypropylene, and therefore has a high surface resistivity. For these reasons, when the bottom plate portion 22 forms the bottom surface of the container 10, charge is likely to accumulate on the bottom plate portion 22. By forming the bottom surface of the container 10 with the charge suppression plate 60, charge buildup on the container 10 is suppressed.

[0071] Furthermore, by providing the inclined surface portion 64 on the charge reduction plate 60, the area of ​​the flat surface portion 63 of the charge reduction plate 60 is smaller than if the inclined surface portion 64 were a flat portion that is flush with the flat surface portion 63. This reduces the area over which the charge reduction plate 60 rubs against the placement surface during sliding, thereby suppressing static buildup on the container 10.

[0072] Furthermore, because the bottom plate 22 on the inside of the charge suppression plate 60 has a higher surface resistivity than the charge suppression plate 60, it is difficult for charges accumulated on the charge suppression plate 60 to reach the items 100 contained in the housing 20. Furthermore, because the housing 20 is made of corrugated plastic 30, costs are kept from increasing compared to when the housing 20 is made of a material having the same surface resistivity as the charge suppression plate 60.

[0073] Furthermore, by making the thickness of the charge suppression plate 60 equal to or greater than a predetermined value (e.g., 2 mm), the bottom of the housing unit 20 is raised, making it less likely that the bottom of the housing unit 20 will come into contact with equipment in the automated storehouse 70. Furthermore, by providing the charge suppression plate 60 with the inclined surface portions 64, the corners of the charge suppression plate 60 will be less likely to come into contact with equipment in the automated storehouse 70. Even if the corners of the charge suppression plate 60 do come into contact with equipment in the automated storehouse 70, the inclined surface portions 64 can slide relative to the equipment, making it less likely that the corners of the charge suppression plate 60 will get caught on the equipment. As a result, damage to the corners of the bottom of the container 10 can be suppressed.

[0074] In addition, the bottom plate 22 and the charge suppression plate 60 are fixed by welding, which eliminates the need to use a separate member such as an adhesive in the area where the bottom plate 22 and the charge suppression plate 60 are fixed.

[0075] The charge reduction plate 60 is fixed to the bottom plate 22 by welding at the inclined surface 64. This allows the formation of the inclined surface 64 and the fixing of the charge reduction plate 60 to the bottom plate 22 to be performed in a single step, facilitating the manufacture of the container 10. For example, a flat plate having flat surfaces of the same size on both sides may be prepared as a base material before being fixed to the bottom plate 22 to become the charge reduction plate 60, and when the flat plate is welded to the bottom plate 22, the outer edge portion may be partially crushed to form the inclined surface 64. For example, the outer edge portion of the flat plate may be thermally deformed to form the inclined surface 64 while being welded to the bottom plate 22 by a hot press using a welding machine.

[0076] Furthermore, the entire portion of the bottom surface of the container 10 that comes into contact with the placement surface of the automated warehouse 70 (here, flat surface portion 63) is made of the charge suppression plate 60. As a result, when the bottom surface of the container 10 slides against the placement surface, only the charge suppression plate 60 comes into contact with the placement surface, thereby further suppressing charging of the container 10.

[0077] Furthermore, the portion of the bottom surface that is made up of charge suppression plate 60 and is lower than inclined surface portion 64 (here, flat surface portion 63) is flat. This makes it difficult for container 10 to get caught when sliding.

[0078] Furthermore, the charge suppression plate 60 is smaller than the outer surface of the bottom plate portion 22. This reduces the area of ​​friction between the charge suppression plate 60 and the placement surface, thereby suppressing static build-up on the container 10.

[0079] Furthermore, the outer surface of the bottom plate 22 is larger than the inner edges of the upper ends of the multiple side plate portions 24, and the charge suppression plate 60 is the same as or smaller than the inner edges of the upper ends of the multiple side plate portions 24. As a result, when multiple containers 10 are stacked, the bottom plate portion 22 of the upper container 10 can overlap the upper surface of the side plate portion 24 of the lower container 10, while the charge suppression plate 60 of the upper container 10 is prevented from overlapping the upper surface of the side plate portion 24 of the lower container 10. This prevents the height of the stacked containers 10 from becoming too high. This makes it possible to reduce the volume of multiple containers 10 when they are stacked and transported without containing any articles 100 in them.

[0080] Furthermore, the charge suppression plate 60 is made of a resin that contains a conductive filler, which makes it less likely that the charge suppression plate 60 will damage the loading surface of the automated warehouse 70 when the container 10 slides. Furthermore, the surface resistivity of the charge suppression plate 60 can be changed by changing the type and content of the conductive filler.

[0081] The surface resistivity of the charge suppression plate 60 is 1.0×10 5 Ω / □ to 1.0×10 14 This allows the charge suppression plate 60 to prevent static electricity while maintaining high insulation properties compared to when it is made of a good conductor such as metal.

[0082] The charge suppression plate 60 becomes positively charged when it rubs against the corrugated plastic 30, and becomes negatively charged when it rubs against a support surface made of an iron-based material. This brings the charge suppression plate 60 closer to human skin in the triboelectric series than the corrugated plastic 30, so that even if the charge suppression plate 60 is charged, a person is less likely to receive an electric shock due to static electricity when touching the charge suppression plate 60.

[0083] In addition, the bottom plate portion 22 is larger than any of the side plate portions 24. As a result, when the bottom plate portion 22 is the bottom surface, the rubbing area becomes relatively large and electric charge is likely to accumulate. Even in this case, the charge suppression plate 60 is provided on the outer surface of the bottom plate portion 22, thereby suppressing the charge of the container 10.

[0084] <Additional Notes> Up to this point, it has been described that the bottom plate 22 and the charge reduction plate 60 are fixed to each other by welding, but this is not a required configuration. The bottom plate 22 and the charge reduction plate 60 may be fixed to each other by a fixing method other than welding. For example, the bottom plate 22 and the charge reduction plate 60 may be fixed to each other by rivets R or by an adhesive or the like.

[0085] Furthermore, although it has been described so far that the entire portion of the bottom of the container 10 that comes into contact with the placement surface of the automated warehouse 70 is made up of the charge suppression plate 60, this is not a required configuration. The portion of the bottom of the container 10 that comes into contact with the placement surface may also include a portion other than the charge suppression plate 60.

[0086] Furthermore, although the portion of the bottom surface of container 10 consisting of charge suppression plate 60 has been described above as being flat, this is not a required configuration. For example, container 10 may have an uneven shape formed in flat surface portion 63.

[0087] Further, although the charge suppression plate 60 has been described above as being smaller than the outer surface of the base plate portion 22, this is not a required configuration. The charge suppression plate 60 may be the same size as or larger than the outer surface of the base plate portion 22.

[0088] Further, although it has been described above that the outer surface of the bottom plate portion 22 is larger than the inner edges of the upper ends of the multiple side plate portions 24 and the charge suppression plate 60 is the same as or smaller than the inner edges of the upper ends of the multiple side plate portions 24, this is not a required configuration. For example, the charge suppression plate 60 may be larger than the inner edges of the upper ends of the multiple side plate portions 24. The charge suppression plate 60 of an upper container 10 may be stacked on the side plate portion 24 of a lower container 10.

[0089] Although the charge suppression plate 60 has been described above as being made of a resin containing a conductive filler, this is not a required configuration. For example, the charge suppression plate 60 may be a metal plate.

[0090] In addition, the surface resistivity of the static electricity suppression plate 60 has been set to 1.0×10 5 Ω / □ to 1.0×10 14 Although described as being in the range of Ω / □, this is not a required configuration. For example, the surface resistivity of the charge suppression plate 60 may be in the range of 1.0×10 5 It may be smaller than Ω / □.

[0091] Furthermore, up until now, the charge suppression plate 60 has been described as being positively charged when rubbed against the corrugated plastic 30 and negatively charged when rubbed against a support surface made of an iron-based material, but this is not a required configuration. For example, the charge suppression plate 60 may be negatively charged when rubbed against the corrugated plastic 30. Also, for example, the charge suppression plate 60 may be positively charged when rubbed against a support surface made of an iron-based material.

[0092] Further, although the bottom plate portion 22 has been described above as being larger than any of the side plate portions 24, this is not a required configuration. For example, any of the side plate portions 24 may be the same as or larger than the bottom plate portion 22. Also, for example, any of the side plate portions 24 may be the same as or larger than the bottom plate portion 22.

[0093] The configurations described in the above embodiment and modifications can be combined as appropriate as long as they are not mutually inconsistent.

[0094] The present specification and drawings disclose the following aspects.

[0095] A first aspect is a container for an automated warehouse having a bottom surface that slides against a loading surface in the automated warehouse, the container comprising a housing portion formed from corrugated plastic and having a bottom plate portion and multiple side plate portions, and a charge suppression plate provided on the outer surface of the bottom plate portion, the charge suppression plate having an outward surface that functions as the bottom surface, the outward surface including an inclined surface portion at an outer edge portion, and the surface resistivity of the charge suppression plate being lower than the surface resistivity of the bottom plate portion.

[0096] According to this container for an automated warehouse, the bottom surface of the container for an automated warehouse is formed of a charge suppression plate having a surface resistivity lower than that of the bottom plate portion. Therefore, compared to when the bottom plate portion forms the bottom surface of the container for an automated warehouse, the amount of charge is less likely to increase when rubbed, and the charged static electricity can be dissipated relatively quickly. As a result, charging of the container for an automated warehouse is suppressed compared to when the bottom surface of the bottom plate portion made of corrugated plastic slides against the placement surface in the automated warehouse. Furthermore, since the thickness of the charge suppression plate is equal to or greater than a predetermined value (e.g., 2 mm), the bottom of the housing portion is raised, making it difficult for the bottom of the housing portion to come into contact with the automated warehouse. Furthermore, since the charge suppression plate is provided with an inclined surface portion, the corners of the charge suppression plate are less likely to come into contact with the automated warehouse. Furthermore, even if the corners of the charge suppression plate come into contact with the equipment of the automated warehouse, the inclined surface portion can slide relative to the equipment, making it difficult for the corners of the charge suppression plate to get caught on the equipment. As a result, damage to the corners of the bottom of the container for an automated warehouse can be suppressed.

[0097] In a second aspect, in the automated warehouse container according to the first aspect, the bottom plate and the charge suppression plate are fixed by welding, which eliminates the need to use a separate member such as an adhesive in the area where the bottom plate and the charge suppression plate are fixed.

[0098] In a third aspect, in the automated warehouse container according to the second aspect, the charge reduction plate is fixed to the bottom plate by welding at the inclined surface portion. This allows the formation of the inclined surface portion and the fixing of the charge reduction plate to the bottom plate portion to be performed in a single process, facilitating the manufacture of the automated warehouse container.

[0099] In a fourth aspect, in the container for an automated warehouse according to any one of the first to third aspects, the entire portion of the bottom surface that contacts the mounting surface is made of the charge suppression plate, so that only the charge suppression plate comes into contact with the mounting surface when the bottom surface of the container for an automated warehouse slides against the mounting surface, thereby further suppressing static electricity in the container for an automated warehouse.

[0100] In a fifth aspect, in the container for an automated warehouse according to any one of the first to fourth aspects, a portion of the bottom surface made of the electrostatic suppression plate that is lower than the inclined surface portion is flat, which makes it difficult for the container for an automated warehouse to get caught during sliding.

[0101] In a sixth aspect, in the container for an automated warehouse according to any one of the first to fifth aspects, the area of ​​the charge suppression plate is smaller than the area of ​​the outer surface of the bottom plate, thereby reducing the area of ​​friction between the charge suppression plate and the placement surface, thereby suppressing static electricity in the container for an automated warehouse.

[0102] A seventh aspect is the automated warehouse container according to the sixth aspect, wherein the outer surface of the bottom plate portion is larger than the inner edges of the upper ends of the side plate portions, and the electrostatic charge suppression plate is the same as or smaller than the inner edges of the upper ends of the side plate portions. This allows the bottom plate portion of an upper automated warehouse container to overlap the upper surface of the side plate portion of a lower automated warehouse container when multiple automated warehouse containers are stacked, while preventing the electrostatic charge suppression plate of the upper automated warehouse container from overlapping the upper surface of the side plate portion of the lower automated warehouse container. This prevents the height of the stacked automated warehouse containers from becoming too high.

[0103] In an eighth aspect, in the container for an automated warehouse according to any one of the first to seventh aspects, the charge suppression plate is made of resin containing a conductive filler, which makes it less likely for the charge suppression plate to damage the loading surface of the automated warehouse when the container for an automated warehouse slides.

[0104] A ninth aspect is the container for an automated warehouse according to any one of the first to eighth aspects, wherein the surface resistivity of the charge suppression plate is 1.0×10 5 Ω / □ to 1.0×10 14 This allows the static electricity prevention plate to prevent static electricity while maintaining high insulation properties compared to when it is made of a good conductor such as metal.

[0105] In a tenth aspect, in the automated warehouse container according to any one of the first to ninth aspects, the charge suppression plate becomes positively charged when rubbed against the corrugated plastic, and becomes negatively charged when rubbed against the storage surface made of an iron-based material. This brings the charge suppression plate closer to human skin in the triboelectric series than the corrugated plastic, making it less likely that a person will get an electric shock due to static electricity when they touch the charge suppression plate.

[0106] An eleventh aspect is an automated warehouse comprising an automated warehouse container according to any one of the first to tenth aspects, a storage shelf for storing the automated warehouse container, and a transport unit for transporting the automated warehouse container towards or from the storage shelf. By using the automated warehouse container, problems related to static electricity build-up and damage to the bottom of the automated warehouse container are less likely to occur in the automated warehouse.

[0107] The above description is illustrative in all respects, and the present invention is not limited thereto. It is understood that countless variations not illustrated can be assumed without departing from the scope of the present invention. [Explanation of symbols]

[0108] 10 Containers for automated warehouses 20 Housing 22 Bottom plate part 24, 24A, 24B side plate part 30 Corrugated Plastic 40 Upper end reinforcement member 50 Corner reinforcement member 60 Antistatic plate 61 Inward Facing Surface 62 Outward Facing Surface 63 Flat surface section (sliding surface) 64 Slope section 70 Automated Warehouse 71 Storage section (storage shelf) 72 Shelf 76 Item transfer device (transport section) 78 Support stand 79 Storage and Removal Mechanism 85 Temporary placement table (transport section) 88 Lifting device (transport section) 89 Lift platform 92 Conveyor (transport section) 100 goods 102 Contents W1, W2 welds

Claims

1. A container for an automated warehouse having a bottom surface that slides against a placement surface in the automated warehouse, A housing portion formed of corrugated plastic and having a bottom plate portion and a plurality of side plate portions; a charge suppressing plate provided on an outer surface of the bottom plate; Equipped with the charge suppression plate has an outwardly facing surface that functions as the bottom surface; The outward surface includes an inclined surface portion at an outer edge portion, the surface resistivity of the charge inhibiting plate is lower than the surface resistivity of the bottom plate portion, the bottom plate and the charge suppression plate are fixed to each other by welding, the charge suppression plate has a rectangular shape, and the inclined surface portion is provided on each of the four outer edge portions of the charge suppression plate, the charge suppression plate is fixed to the bottom plate by welding at each of the four inclined surface portions, A container for an automated warehouse, wherein an anti-static plate is not provided on the upper surface of the bottom plate portion.

2. The container for an automated warehouse according to claim 1, the entire portion of the bottom surface that contacts the placement surface is made of the charge suppressing plate, a portion of the bottom surface that is made of the charge suppressing plate and is lower than the inclined surface portion is flat, The electrostatic charge suppression plate is made of a resin containing a conductive filler.

3. The container for an automated warehouse according to claim 1 or 2, an area of ​​the charge suppression plate is smaller than an area of ​​the outer surface of the bottom plate portion; The outer surface of the bottom plate portion is larger than inner edges of upper ends of the side plate portions, the electrostatic charge suppression plate is equal to or smaller than the inner edges of the upper ends of the side plate portions.

4. The container for an automated warehouse according to any one of claims 1 to 3, The surface resistivity of the charge suppression plate is 1.0×10 ５ Ω / □ to 1.0 x 10 １4 A container for automated warehouses in the Ω / □ range.

5. The container for an automated warehouse according to any one of claims 1 to 4, The electrostatic charge suppression plate becomes positively charged when rubbed against the cardboard plastic, and becomes negatively charged when rubbed against the storage surface made of an iron-based material, in this container for an automated warehouse.

6. An automated warehouse container according to any one of claims 1 to 5; A storage shelf for storing the automated warehouse container; A conveying unit that conveys the automated warehouse container toward or from the storage shelf; An automated warehouse equipped with

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