Panel storage container

Abstract

To provide a panel storage container which prevents a panel from being damaged and is capable of reducing a load to a transfer device.SOLUTION: A panel storage container comprises a container main body for storing a plurality of panels while arraying them in a first direction and a panel support part which is provided inside of the container main body and supports the plurality of panels. The panel support part includes a first shaft, which extends in a second direction crossing the first direction, for supporting one of the plurality of panels. The first shaft includes a first end which is an end in the second direction, the container main body includes a first strut to which the first end is fixed, and a cross-sectional shape of the first shaft vertical to the second direction is a non-projected form.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a panel enclosure. [Background technology]

[0002] In manufacturing processes that handle panels such as glass substrates for liquid crystal panels, panel storage containers that store multiple panels are used when transferring rectangular panels from one manufacturing device to another manufacturing device and when temporarily storing the panels. For example, Patent Document 1 describes a panel storage container that includes a container body that stores the panels and a lid that can be opened and closed to cover an opening provided in the container body. A long support member (shaft) is provided inside this panel storage container to support the central underside of one panel. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2019 / 138982 Summary of the Invention [Problem to be solved by the invention]

[0004] In the panel storage container described in Patent Document 1, only the rear end of the shaft is fixed to the support. As a result, the weight of the shaft can cause the tip of the shaft to drop below its designed height. In this case, when a panel is loaded into or unloaded from the storage tier below the shaft, the panel may interfere with the shaft and be damaged.

[0005] On the other hand, if the weight of the panel storage container increases, a load is placed on the transport device that transports the panel storage container, so it is desirable to reduce the weight of the shaft.

[0006] The present disclosure provides a panel storage container that can prevent panels from being damaged and reduce the load on a transport device. [Means for solving the problem]

[0007] A panel storage container according to one aspect of the present disclosure includes a container body for storing a plurality of panels arranged in a first direction, and a panel support portion provided inside the container body and supporting the plurality of panels. The panel support portion includes a first shaft extending in a second direction intersecting the first direction for supporting one of the plurality of panels. The first shaft has a first end portion that is an end portion in the second direction. The container body includes a first support post to which the first end portion is fixed. The cross-sectional shape of the first shaft perpendicular to the second direction is a non-convex figure.

[0008] In this panel housing, the first end of the first shaft is fixed to the first support. A uniform load is applied to the first shaft due to its own weight. Therefore, the deflection of the first shaft due to its own weight is proportional to the cross-sectional area of the first shaft and inversely proportional to the moment of inertia of the first shaft. The moment of inertia is calculated as the sum of moments about the neutral axis in the cross section. In other words, the moment of inertia is calculated as the sum of the products of the square of the distance from the neutral axis and the infinitesimal area of the cross section. Therefore, the moment of inertia of the first shaft is strongly affected by the length of the first shaft in the vertical direction. In the panel housing, the cross-sectional shape of the first shaft perpendicular to the second direction is a non-convex shape. A non-convex shape is a shape that is not a convex shape. In other words, a non-convex shape is a shape in which the entire line segment connecting two points on the shape is not contained within the shape. A cross-sectional shape that meets the condition of a non-convex shape is a shape with a concave outer edge or a hollow portion. Therefore, compared to a shaft having a convex cross-sectional shape in which missing portions of a non-convex shape are filled in, when a panel is stored in a panel storage container, the cross-sectional area of the first shaft can be reduced while maintaining its vertical and horizontal lengths. Therefore, the cross-sectional area of the first shaft can be reduced without significantly reducing the second moment of area of the first shaft, thereby reducing the amount of deflection of the first shaft. As a result, it is possible to reduce the possibility of panel damage. Furthermore, compared to the above-mentioned shaft, the cross-sectional area of the first shaft can be reduced, thereby reducing the weight of the first shaft. Therefore, the load on the transport device that transports the panel storage container can be reduced.

[0009] In some embodiments, the first shaft may include a mounting portion and a first leg portion provided on the mounting portion. The mounting portion may have a first surface on which the panel is placed and a second surface opposite the first surface. The first leg portion may extend in a first direction from the second surface, and the first and second surfaces may be planes intersecting the first direction. The length of the first leg portion in a third direction intersecting the first and second directions may be smaller than the length of the mounting portion in the third direction. In a member having a rectangular cross section, the cube of the length of the member in the vertical direction contributes to the moment of inertia. When a panel is stored in the panel storage container, the first direction may be the vertical direction. For example, compared to a rectangular shaft in which the mounting portion extends in the first direction by the same distance as the first leg instead of the first leg, the length of the cross-sectional shape of the first shaft in the first direction is equal to the length of the cross-sectional shape of the shaft in the first direction. Therefore, the cross-sectional area of the first shaft can be reduced without significantly reducing the second moment of area of the first shaft. As a result, the amount of deflection of the first shaft due to its own weight can be reduced, making it possible to reduce the possibility of the panel being damaged. Furthermore, since the cross-sectional area of the first shaft can be reduced compared to the above-mentioned shaft, the weight of the first shaft can be reduced. Therefore, the load on the conveying device that conveys the panel storage container can be reduced.

[0010] In some embodiments, the first shaft may further include a second leg provided on the mounting portion and extending in the first direction from the second surface. The sum of the length of the first leg in the third direction and the length of the second leg in the third direction may be smaller than the length of the mounting portion in the third direction. In this case, by providing the second leg on the mounting portion in addition to the first leg, the second moment of area of the first shaft can be increased. This further reduces the amount of deflection of the first shaft due to its own weight, thereby further reducing the possibility of damage to the panel.

[0011] In some embodiments, the first shaft may have a cylindrical shape. In this case, a hollow portion is provided in the cross section of the first shaft perpendicular to the second direction. Compared to a shaft having a solid cross section in which the hollow portion is filled, the shape enclosed by the outer periphery in the cross section of the first shaft is the same as the shape enclosed by the outer periphery in the cross section of the shaft. Therefore, the cross-sectional area of the first shaft can be reduced without significantly reducing the second moment of area of the first shaft. This reduces the amount of deflection of the first shaft due to its own weight, making it possible to reduce the possibility of panel damage. Furthermore, since the cross-sectional area of the first shaft can be reduced compared to the above-mentioned shaft, the weight of the first shaft can be reduced. This reduces the load on the conveying device that conveys the panel storage container.

[0012] In some embodiments, the panel support portion may include a second shaft extending in a second direction for supporting the panel, and a support member supporting the second shaft. The first shaft and the second shaft may be arranged in a third direction intersecting the first and second directions. The second shaft may have a second end portion that is an end portion in the second direction. The container body may further include a second support column to which the second end portion is fixed. In this configuration, the second shaft is supported not only by the second support column but also by the support member, so that bending of the second shaft due to its own weight is suppressed regardless of the shape of the second shaft. The panel is supported by the second shaft in addition to the first shaft. Therefore, the panel can be stably supported.

[0013] In some embodiments, the cross-sectional shape of the second shaft perpendicular to the second direction may be different from the cross-sectional shape of the first shaft. The second shaft is supported not only by the second support but also by a support. This prevents the second shaft from bending due to its own weight, so the cross-sectional shape of the second shaft perpendicular to the second direction does not need to be a non-convex shape. This allows the cross-sectional shape of the second shaft to be simplified, making it possible to simplify the manufacture of the second shaft. [Effects of the Invention]

[0014] According to the present disclosure, it is possible to prevent damage to panels and reduce the load on the conveying device. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is an exploded perspective view of a panel storage container according to one embodiment. [Figure 2] FIG. 2 is a rear perspective view of the panel housing shown in FIG. [Figure 3] FIG. 3 is a front view of the frame shown in FIG. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. [Figure 5] FIG. 5 is a perspective view of the support shown in FIG. [Figure 6] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. [Figure 7] 7(a) and 7(b) are cross-sectional views showing modified examples of the shaft. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In the description of the drawings, the same elements are given the same reference numerals, and duplicated explanations will be omitted. Each drawing shows an XYZ coordinate system. The Y-axis direction is a direction that intersects (here, perpendicular to) the X-axis and Z-axis directions. The Z-axis direction is a direction that intersects (here, perpendicular to) the X-axis and Y-axis directions. As an example, the X-axis direction is the left-right direction (width direction; third direction), the Y-axis direction is the front-rear direction (depth direction; second direction), and the Z-axis direction is the up-down direction (height direction; first direction). For convenience of explanation, the terms "front," "rear," "up," "down," "left," and "right" are used, but are not limited to these directions.

[0017] A panel storage container according to one embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is an exploded perspective view of the panel storage container according to one embodiment. FIG. 2 is a rear perspective view of the panel storage container shown in FIG. 1. The panel storage container 1 shown in FIGS. 1 and 2 is a container for storing multiple panels. The panel storage container 1 complies with, for example, the SEMI (Semiconductor Equipment and Materials International) standard. Examples of panels include glass substrates for liquid crystal panels and panels equipped with electronic components. The panels have a rectangular shape. Examples of panel sizes include 510 mm x 515 mm and 600 mm x 600 mm. The number of panels that can be stored in the panel storage container 1 is determined arbitrarily and may be, for example, 6 or 12.

[0018] The panel storage container 1 is used, for example, in a manufacturing device for manufacturing electronic components. Electronic components are manufactured through a process of mounting a large number of electronic components on a large carrier panel such as a glass plate or a stainless steel plate, sealing these electronic components with epoxy resin or the like, peeling the sealed electronic components from the carrier panel in panel form, and cutting out the panel-shaped electronic components individually. The panel storage container 1 is used to transport panels between these processes.

[0019] The panel storage container 1 includes a container body 2 and a lid body 3.

[0020] The container body 2 is a rectangular parallelepiped container with an open front (front face). In other words, the container body 2 is a front-open box-type container with an opening 2a on the front face. The container body 2 stores a plurality of panels. Specifically, the container body 2 stores a plurality of panels arranged in a vertical direction. The panels are inserted into and removed from the container body 2 via the opening 2a. Details of the container body 2 will be described later.

[0021] The lid body 3 is a member for closing the opening 2a of the container body 2. The lid body 3 airtightly closes the opening 2a of the container body 2 via a sealing member such as a gasket. The lid body 3 is detachably attached to a flange 25 that defines the opening 2a. The lid body 3 includes a lid main body 31 and a locking mechanism 32. The lid main body 31 is the main body portion of the lid body 3. The lid main body 31 is a rectangular plate material. The lid main body 31 is made of a metal material such as aluminum or a magnesium alloy. The lid main body 31 may also be made of a thermoplastic resin such as a polycarbonate resin. A keyhole 33 is provided on the front surface of the lid main body 31. A key (not shown) is inserted into the keyhole 33.

[0022] The locking mechanism 32 locks or unlocks the lid 3 by operating a key inserted in a keyhole 33. The locking mechanism 32 is equipped with a latch (not shown). With the lid 3 attached to the flange 25, the latch is fitted into a locking hole 25h provided in the flange 25 by operating the key, thereby locking the lid 3. With the lid 3 locked, the latch is pulled out of the locking hole 25h by operating the key, thereby unlocking the lid 3.

[0023] The container body 2 and the lid 3 are formed by combining multiple parts molded from metal or resin materials. Examples of resins contained in the molding material of the resin material include thermoplastic resins. Examples of thermoplastic resins include polycarbonate, cycloolefin polymer, polyetherimide, polyetherketone, polyetheretherketone, polybutylene terephthalate, polyacetal, liquid crystal polymer, acrylic resins such as polymethyl methacrylate, and acrylonitrile butadiene styrene copolymer. Alloys of these resins may also be used as the resin contained in the molding material of the resin material.

[0024] Conductive materials and various antistatic agents may be added to these resins. Examples of conductive materials include carbon fibers, carbon powder, carbon nanotubes, and conductive polymers. Examples of antistatic agents that can be used include anionic, cationic, and nonionic antistatic agents. Benzotriazole-based, salicylate-based, cyanoacrylate-based, oxalic acid anilide-based, and hindered amine-based ultraviolet absorbers may also be added. Glass fibers or carbon fibers, which improve rigidity, may also be added selectively.

[0025] Next, the container body 2 will be described in detail with further reference to Fig. 3. Fig. 3 is a front view of the frame shown in Fig. 1. As shown in Figs. 1 to 3, the container body 2 includes a top plate 21, a bottom plate 22, a pair of side walls 23, a rear wall 24, a flange 25, a frame 26, a base portion 27, and a side plate 28.

[0026] The top plate 21, the bottom plate 22, the side walls 23, and the rear wall 24 are generally rectangular plate materials. The top plate 21 and the bottom plate 22 face each other in the up-down direction and are disposed generally parallel to each other. The pair of side walls 23 face each other in the left-right direction and are disposed generally parallel to each other. The rear wall 24 connects the rear end of the top plate 21 to the rear end of the bottom plate 22, and also connects the rear ends of the pair of side walls 23. The top plate 21, the bottom plate 22, the pair of side walls 23, and the rear wall 24 define the storage space 20.

[0027] The top plate 21, the bottom plate 22, and the side walls 23 are made of, for example, a metal material such as aluminum or stainless steel. The rear wall 24 is made of, for example, a transparent resin material that allows the storage space 20 to be seen from the outside of the container body 2. A portion of the rear wall 24 may be made of a transparent resin material. Examples of transparent resin materials include acrylic resin, polycarbonate, vinyl chloride resin, and cycloolefin polymer.

[0028] The flange 25 is a rectangular frame body that is provided across the front end of the top plate 21, the front end of the bottom plate 22, and the front ends of the pair of side walls 23. The flange 25 defines the opening 2a. The flange 25 is made of, for example, the resin material described above. Two locking holes 25h are provided in each of the upper and lower frame portions of the flange 25, and are spaced apart in the left-right direction. The locking holes 25h in the upper frame portion and the locking holes 25h in the lower frame portion are provided in positions that face each other in the up-down direction.

[0029] The frame 26 is used to secure the top plate 21, the bottom plate 22, the pair of side walls 23, and the rear wall 24. The frame 26 is made of a metal material such as aluminum or stainless steel. The frame 26 is provided on the front surface of the rear wall 24. The frame 26 has a frame portion 26a, a support 26b (first support), and a pair of support columns 26c (second support). The frame portion 26a is a rectangular member and is provided along the periphery of the rear wall 24.

[0030] The support pillar 26b and the pair of support pillars 26c are columnar members extending in the vertical direction. One support pillar 26c, support pillar 26b, and the other support pillar 26c are arranged in that order in the left-right direction and are disposed approximately parallel to each other. The support pillar 26b and the pair of support pillars 26c extend from the upper frame portion to the lower frame portion of the frame portion 26a. The support pillar 26b is provided in the center of the frame body 26 in the left-right direction, and the pair of support pillars 26c are provided near both ends of the frame body 26 in the left-right direction.

[0031] Support pillar 26b is a member for fixing shaft 61a, which will be described later. Support pillar 26b has a plurality of fitting holes 26g for attaching shaft 61a. These fitting holes 26g are recessed from the front surface of support pillar 26b toward the rear. Support pillar 26c is a member for fixing shaft 62a, which will be described later. Support pillar 26c has a plurality of fitting holes 26h for attaching shaft 62a. These fitting holes 26h are recessed from the front surface of support pillar 26c toward the rear.

[0032] The pedestal portion 27 is a portion that serves as the base of the container body 2. The pedestal portion 27 is made of a metal material such as aluminum or stainless steel. The pedestal portion 27 is provided on the lower surface of the bottom plate 22. The pedestal portion 27 is made by combining a plurality of columnar support members.

[0033] The side plates 28 are members for attaching the support body 65 described below. The side plates 28 are plate-shaped members extending in the vertical direction. The side plates 28 are made of a metal material such as aluminum or stainless steel. The side plates 28 are provided on the outer surfaces of the side walls 23. In the present embodiment, two side plates 28 are provided on each side wall 23. The two side plates 28 are aligned in the front-to-rear direction and disposed substantially parallel to each other. One side plate 28 is provided near the center of the side wall 23 in the front-to-rear direction, and the other side plate 28 is provided near the front end of the side wall 23 in the front-to-rear direction.

[0034] At the corners of the container body 2, cover members are provided to prevent particles from entering the accommodation space 20.

[0035] Next, the configuration inside the storage space 20 will be described with reference to Figure 4. Figure 4 is a cross-sectional view taken along line IV-IV in Figure 2. As shown in Figure 4, the panel storage container 1 further includes a panel support portion 60. The panel support portion 60 is a portion for supporting a plurality of panels. The panel support portion 60 is provided inside the container body 2 (storage space 20). The panel support portion 60 includes a plurality of support portions 61, a plurality of support portions 62, a plurality of stoppers 63, and a plurality of stoppers 64.

[0036] The numbers of support portions 61, support portions 62, stoppers 63, and stoppers 64 vary depending on the number of panels that can be stored in the panel storage container 1. In this embodiment, the panel support portion 60 includes one support portion 61, two support portions 62, two stoppers 63, and two stoppers 64 per panel. In other words, one support portion 61, two support portions 62, two stoppers 63, and two stoppers 64 form a storage stage that stores one panel.

[0037] The support portion 61 is a portion for supporting the center portion of the panel in the left-right direction. The support portion 61 has a shaft 61a (first shaft) and multiple elastic bodies 61b. The shaft 61a is a member extending in the front-rear direction. The shaft 61a is used to support one panel. The shaft 61a has an end portion 61c (first end portion; see FIG. 5) and an end portion 61d, which are both ends in the extension direction (front-rear direction) of the shaft 61a. The end portion 61c is fitted into a fitting hole 26g of the support column 26b and fixed to the support column 26b with a screw. The shaft 61a is made of, for example, a material with high bending rigidity. Examples of materials for the shaft 61a include metals such as stainless steel and aluminum, and carbon fiber reinforced plastic. The shape of the shaft 61a will be described later.

[0038] The elastic body 61b is an annular member provided around the axis of the shaft 61a to surround the shaft 61a. The elastic body 61b is provided along the surface of the shaft 61a. The elastic body 61b is provided to prevent the panel from slipping and improve the positioning accuracy of the panel. From the viewpoint of preventing the panel from slipping, the elastic body 61b may have higher friction (frictional force) than the shaft 61a. From the viewpoint of preventing damage to the panel, the elastic body 61b may have higher elasticity (cushioning properties) than the shaft 61a. The elastic body 61b is made of, for example, a rubber material. Examples of rubber materials include EPDM (ethylene propylene diene rubber), silicone rubber, and fluororubber. The multiple elastic bodies 61b are arranged at regular intervals in the extension direction of the shaft 61a. From the viewpoint of improving the positioning accuracy, the interval between two adjacent elastic bodies 61b may be in the range of 50 mm to 100 mm.

[0039] The support portion 62 is a portion for supporting both ends of the panel in the left-right direction. The support portion 62 has a shaft 62a (second shaft), multiple elastic bodies 62b, and multiple supports 65. The shaft 62a is a columnar (e.g., cylindrical) member extending in the front-rear direction. The shaft 62a is used to support one panel. The shaft 62a has an end 62c (second end) and an end 62d, which are both ends in the extension direction (front-rear direction) of the shaft 62a. The end 62c of the shaft 62a is fitted into a fitting hole 26h of the support column 26c and fixed to the support column 26c with a screw.

[0040] The shaft 62a is made of, for example, a material with high bending rigidity. Examples of materials for the shaft 62a include metals such as stainless steel and aluminum, and carbon fiber reinforced plastic. The length of the shaft 62a in the front-rear direction is slightly longer than the length of the panel in the front-rear direction, and is longer than the length of the shaft 61a in the front-rear direction. The shaft 61a and the pair of shafts 62a are arranged in the left-right direction. The shaft 61a is arranged between the pair of shafts 62a.

[0041] The elastic body 62b is an annular (e.g., circular) member provided on the outer circumferential surface of the shaft 62a. The elastic body 62b is provided to prevent the panel from slipping and improve the positioning accuracy of the panel. The constituent material and arrangement of the elastic body 62b are the same as those of the elastic body 61b, so a detailed description thereof will be omitted.

[0042] The support body 65 is a member that holds (supports) the shaft 62a and supports the left-right end of the panel. An insertion hole that penetrates the support body 65 in the front-rear direction is provided at the tip of the support body 65, and the shaft 62a passes through the insertion hole. The support body 65 has an inclined surface that slopes downward from the base end of the support body 65 to the tip.

[0043] The base end portion of the support 65 abuts against the inner surface of the side wall 23, and the side plate 28, side wall 23, and support 65 are positioned by a knock pin (not shown). In this state, a screw is inserted from the outside of the side plate 28 into an insertion hole provided in the side plate 28, and the screw is screwed into a screw hole provided in the base end portion of the support 65. As a result, the support 65 is fixed to the side plate 28 with the side wall 23 sandwiched between the support 65 and the side plate 28.

[0044] The stopper 63 is a member that prevents the panel from popping out and determines the position of the front end of the panel. The stopper 63 is made of, for example, the resin material described above. The stopper 63 is provided at the end 62d of the shaft 62a. For example, the stopper 63 is attached to the shaft 62a by fitting the end 62d of the shaft 62a into a mounting hole provided in the stopper 63. The stopper 63 has a disk-shaped locking piece 63a with an outer diameter larger than the outer diameter of the elastic body 62b. The locking piece 63a has an inclined surface that slopes rearward from the outer periphery toward the center.

[0045] The stopper 64 is a member for determining the position of the rear end of the panel. The stopper 64 is made of, for example, the resin material described above. The stopper 64 is provided at the end 62c of the shaft 62a. The stopper 64 has a block shape. The stopper 64 has an insertion hole for inserting the shaft 62a in the front-rear direction. With the shaft 62a inserted into the insertion hole of the stopper 64, the rear surface of the stopper 64 abuts against the front surface of the support 26c, and the stopper 64 is fixed to the support 26c with a screw. The stopper 64 has an inclined surface that slopes forward from the top surface downward.

[0046] The stoppers 63, 64, and the supports 65 define the placement position of the panel. Specifically, the stoppers 63, 64 define the placement position of the panel in the front-to-rear direction, and the four supports 65 on the left and right define the placement position of the panel in the left-to-right direction. For example, a panel is carried into the storage space 20 by a robot and placed on one of the storage shelves. At this time, the position of the panel may be slightly shifted due to an error or the like. For example, even if the front end of the panel rides up on the inclined surface of the locking piece 63a of the stopper 63, the panel's own weight guides it along the inclined surface to the placement position. Similarly, even if the rear end of the panel rides up on the inclined surface of the stopper 64, the panel's own weight guides it along the inclined surface to the placement position. Similarly, even if the side end of the panel rides up on the inclined surface of the support 65, the panel's own weight guides it along the inclined surface to the placement position.

[0047] Next, the shape of the shaft 61a will be described with reference to Figures 5 and 6. Figure 5 is a perspective view of the support part 61. Figure 6 is a cross-sectional view taken along line VI-VI in Figure 5.

[0048] As shown in FIG. 5, the shaft 61a has an end portion 61c and an exposed portion 61e. The end portion 61c has a cylindrical shape extending in the front-rear direction. As described above, the end portion 61c is fitted into the fitting hole 26g of the support 26b and is not exposed from the support 26b. The exposed portion 61e is the portion of the shaft 61a excluding the end portion 61c and is exposed from the support 26b. The exposed portion 61e is continuous with the end portion 61c in the front-rear direction and includes the end portion 61d. The shape of the exposed portion 61e is different from the shape of the end portion 61c.

[0049] Specifically, as shown in FIG. 6, the exposed portion 61e includes a mounting portion 71 and legs 72 (first legs). The mounting portion 71 and the legs 72 extend over the entire exposed portion 61e in the front-rear direction. The mounting portion 71 has a rectangular plate shape extending in the front-rear direction. Specifically, the mounting portion 71 has a plate shape with a length (width) b in the left-right direction, a length (thickness) t2 in the up-down direction, and a length L in the front-rear direction. The mounting portion 71 has an upper surface 71a (first surface) and a lower surface 71b (second surface) that intersect (here, are perpendicular to) the up-down direction. The upper surface 71a is the surface on which a panel is placed. The lower surface 71b is the surface opposite the upper surface 71a in the up-down direction.

[0050] The leg portion 72 has a rectangular plate-like shape extending in the front-rear direction. Specifically, the leg portion 72 has a plate-like shape with a length (thickness) t1 in the left-right direction, a length (height) h1 in the up-down direction, and a length L in the front-rear direction. The thickness t1 is smaller than the width b. The leg portion 72 is provided on the mounting portion 71. The leg portion 72 is provided at the center of the lower surface 71b in the left-right direction and extends downward from the lower surface 71b.

[0051] Here, the vertical length (height) h of the exposed portion 61e is the sum of the thickness t2 and the height h1. The exposed portion 61e has a neutral plane NP located a distance e2 downward from the upper surface 71a of the mounting portion 71. The neutral plane NP is a surface on which no expansion or contraction occurs in the exposed portion 61e. The neutral plane NP is located a distance e1 upward from the lower end of the leg portion 72. In other words, the sum of the distance e1 and the distance e2 is the height h.

[0052] The cross-sectional shape of the exposed portion 61e configured in this manner, perpendicular to the front-rear direction, is a non-convex shape. A non-convex shape refers to a shape that is not a convex shape. A convex shape refers to a shape in which the entirety of a line segment connecting any two points on the shape is included in the shape. In other words, a non-convex shape is a shape in which the entirety of a line segment connecting any two points on the shape is not included in the shape. In this embodiment, the exposed portion 61e has a T-shaped cross-sectional shape. In other words, the exposed portion 61e has a columnar shape with a substantially uniform T-shaped cross section throughout the entire front-rear direction.

[0053] The cross-sectional shape of the shaft 61a perpendicular to the front-rear direction is different from the cross-sectional shape of the shaft 62a perpendicular to the front-rear direction. In this embodiment, the cross-sectional shape of the shaft 62a perpendicular to the front-rear direction is circular.

[0054] Next, an example of a method for calculating the weight deflection amount δ of the shaft 61a will be described. The weight deflection amount δ of the shaft 61a is the amount of deflection at the tip (end 61d) of the shaft 61a due to the weight of the shaft 61a. As shown in formula (1), the weight deflection amount δ is calculated based on the uniformly distributed load w, the length L, Young's modulus E, and the second moment of area I. As described above, the length L is the length of the exposed portion 61e in the front-to-rear direction. The weight deflection amount δ is calculated using the parameters of the exposed portion 61e, but in the following description, for convenience, the parameters used in the calculation are referred to as parameters of the shaft 61a.

number

[0055] As shown in equation (2), the uniformly distributed load w is calculated by multiplying the density ρ of the shaft 61a, the gravitational acceleration g, and the cross-sectional area A of the shaft 61a.

number

[0056] The moment of inertia I is calculated as shown in equation (3).

number

[0057] As shown in formula (4), the cross-sectional area A is calculated as the sum of the cross-sectional area of the mounting portion 71 and the cross-sectional area of the leg portion 72.

number

[0058] As shown in equation (5), the distance e2 is calculated by dividing the moment of inertia of the shaft 61a by the cross-sectional area A.

number

[0059] Next, the effects of the panel storage container 1 will be described. As described above, a robot carries a panel into the storage space 20 and places the panel on one of the storage tiers. At this time, the panel is carried in above the placement position (the shaft 61a and the pair of shafts 62a) and then lowered to the placement position. Therefore, if the end 61d of the shaft 61a hangs down more than the designed height, it may interfere with the robot or the panel when the panel is carried into the storage tier below the shaft 61a, resulting in damage to the panel. Similarly, when a panel stored in the panel storage container 1 is removed by the robot, the panel placed at the placement position is lifted upward by the robot and then carried out of the storage space 20 to the outside of the panel storage container 1. Therefore, if the end 61d of the shaft 61a hangs down more than the designed height, it may interfere with the robot or the panel when the panel is carried out of the storage tier below the shaft 61a, resulting in damage to the panel.

[0060] In the panel storage container 1, the end 61c of the shaft 61a is fixed to the support 26b, and the shaft 61a is supported only by the end 61c. In other words, the end 61c is the fixed end, and the end 61d is the free end. In this case, a uniform load due to the shaft's own weight is generated on the shaft 61a. Therefore, as shown in equations (1) and (2), the amount of deflection δ of the shaft 61a due to its own weight is proportional to the cross-sectional area A of the shaft 61a and inversely proportional to the moment of inertia I of the shaft 61a. Here, the moment of inertia I is calculated as the sum of moments about the neutral plane NP in the cross section. In other words, the moment of inertia I is calculated as the sum of the products of the squares of the distance from the neutral plane NP and the infinitesimal area of the cross section. Therefore, it can be said that the moment of inertia I of the shaft 61a is strongly affected by its length in the vertical direction.

[0061] In the panel storage container 1, the cross-sectional shape of the shaft 61a perpendicular to the front-rear direction is a non-convex figure. Specifically, the cross-sectional shape of the shaft 61a is T-shaped. As shown in Equation (3), for a member having a rectangular cross-section, the cube of the member's vertical length contributes to the area moment of inertia I. When panels are stored in the panel storage container 1, the up-down direction can be the vertical direction. For example, compared to a rectangular shaft in which the mounting portion 71 extends in the up-down direction so that the lower surface 71b of the mounting portion 71 is aligned with the lower end of the leg portion 72 instead of the leg portion 72 (i.e., a rectangular shaft having a vertical length h and a horizontal length b (shaft of the comparative example)), the vertical length of the cross-sectional shape of the shaft 61a is equal to the vertical length of the cross-sectional shape of the shaft of the comparative example. Therefore, the area moment of inertia I of the shaft 61a is not significantly reduced compared to the shaft of the comparative example. Meanwhile, the shaft 61a has spaces (missing portions) on the left and right sides of the leg portions 72 below the mounting portion 71, so the cross-sectional area of the shaft 61a can be made smaller than that of the shaft of the comparative example. This reduces the amount of deflection δ of the shaft 61a due to its own weight, making it possible to reduce the possibility of the panel being damaged. Furthermore, since the cross-sectional area of the shaft 61a can be made smaller than that of the shaft of the comparative example, the weight of the shaft 61a can be reduced. This reduces the load on the transport device that transports the panel storage container 1.

[0062] The cross-sectional shape of the shaft 61a is T-shaped, which allows moisture to easily flow down along the surface of the shaft 61a. This reduces the possibility that moisture will remain on the surface of the shaft 61a after the inside of the panel storage container 1 has been cleaned. As a result, the drying performance of the inside of the panel storage container 1 can be improved.

[0063] In the panel storage container 1, the panel is supported at its left-right center by shaft 61a, and at both left-right ends by shaft 62a. Shaft 62a is supported not only by support columns 26c but also by supports 65. Therefore, even when a panel is placed on shaft 62a, it does not bend and can stably support the panel.

[0064] The shaft 62a is supported not only by the support columns 26c but also by the support bodies 65. This prevents the shaft 62a from bending due to its own weight, and therefore there is no need to make the cross-sectional shape of the shaft 62a perpendicular to the front-rear direction a non-convex shape. Therefore, in the panel storage container 1, the cross-sectional shape of the shaft 62a is different from the cross-sectional shape of the shaft 61a. Specifically, the shaft 62a has a solid circular cross-section. This allows the cross-sectional shape of the shaft 62a to be simplified, which simplifies the manufacture of the shaft 62a.

[0065] The panel storage container according to the present disclosure is not limited to the above embodiment.

[0066] In the above embodiment, screws are used as an example of fixing members, but other fixing members may be used instead of screws.

[0067] The method of connecting the components of the container body 2 may be different from that in the above embodiment. In the above embodiment, the container body 2 is formed by combining multiple parts, but it may also be an integrally molded product.

[0068] In the above embodiment, the fitting holes 26g and 26h are recesses, but they may also be through holes.

[0069] The panel support portion 60 may include two or more support portions 61 per panel. In this case, the panel support portion 60 may not include the support portion 62, the stopper 63, and the stopper 64. The frame body 26 may not include the support column 26c. The stopper 64 may be provided at the end portion 61c of the shaft 61a.

[0070] In the above embodiment, the support portion 62 has the shaft 62a, the plurality of elastic bodies 62b, and the plurality of supports 65. Instead of this configuration, the support portion 62 may have a plate-shaped support extending in the front-rear direction to support the ends of the panel in the left-right direction.

[0071] The shape of the shaft 61a is not limited to that of the above embodiment. Modified examples of the shaft 61a will be described with reference to Figures 7(a) and 7(b).

[0072] Fig. 7(a) is a cross-sectional view showing a shaft 61a according to a first modified example. The cross-sectional view shown in Fig. 7(a) is a cross-sectional view perpendicular to the extension direction of the shaft 61a (exposed portion 61e). The shaft 61a according to the first modified example differs from the shaft 61a according to the above embodiment mainly in the configuration of the exposed portion 61e. As shown in Fig. 7(a), the exposed portion 61e of the shaft 61a according to the first modified example differs from the exposed portion 61e of the shaft 61a according to the above embodiment mainly in that it has two leg portions 73 instead of the leg portion 72.

[0073] Each leg 73 extends over the entire exposed portion 61e in the front-rear direction. Each leg 73 has a shape similar to that of the leg 72. Specifically, each leg 73 has a rectangular plate shape extending in the front-rear direction. Each leg 73 has a plate shape with a left-right length (thickness) t1, a vertical length (height) h1, and a front-rear length L. The total thickness of the two legs 73 (2×t1) is smaller than the width b. The legs 73 are provided on the mounting portion 71. One leg 73 (first leg) is provided at one end of the lower surface 71b in the left-right direction and extends downward from the lower surface 71b. The other leg 73 (second leg) is provided at the other end of the lower surface 71b in the left-right direction and extends downward from the lower surface 71b. The two legs 73 are provided on the mounting portion 71 with a gap b1 between them in the left-right direction. In other words, the sum of the thickness t1 of the two leg portions 73 and the distance b1 is equal to the width b of the mounting portion 71.

[0074] Here, the exposed portion 61e has a length (height) h in the vertical direction. The exposed portion 61e has a neutral plane NP located a distance e2 downward from the upper surface 71a of the mounting portion 71. The neutral plane NP is located a distance e1 upward from the lower end of the leg portion 73. In other words, the sum of the distances e1 and e2 is the height h. Note that the distances e1 and e2 in the shaft 61a according to the first modified example may have different values from the distances e1 and e2 in the shaft 61a according to the above embodiment, but for ease of explanation, the same reference numerals are used.

[0075] The cross-sectional shape of the exposed portion 61e configured in this manner, perpendicular to the front-rear direction, is a non-convex figure. Specifically, the exposed portion 61e has a U-shaped cross-section that opens downward. In other words, the exposed portion 61e has a columnar shape with a substantially uniform U-shaped cross-section throughout the entire front-rear direction.

[0076] The formulas for calculating the weight deflection amount δ and the uniformly distributed load w of the shaft 61a are commonly used regardless of the shape of the shaft 61a. Therefore, the weight deflection amount δ of the shaft 61a according to the first modified example can be calculated using formula (1). The uniformly distributed load w of the shaft 61a according to the first modified example can be calculated using formula (2). Note that the values of the parameters in each formula may differ depending on the shape of the shaft 61a. The second moment of area I of the shaft 61a according to the first modified example is calculated as shown in formula (6). The weight deflection amount δ is calculated using the parameters of the exposed portion 61e, but in the following explanation, for convenience, the parameters used in the calculation will be referred to as parameters of the shaft 61a.

number

[0077] As shown in formula (7), the cross-sectional area A of the shaft 61a according to the first modified example is calculated as the sum of the cross-sectional area of the mounting portion 71 and the cross-sectional area of the two leg portions 73.

number

[0078] As shown in equation (8), the distance e2 is calculated by dividing the moment of inertia of the area of the shaft 61a according to the first modified example by the cross-sectional area A.

number

[0079] The panel storage container having the shaft 61a according to the first modification also achieves the same effects as the panel storage container 1 according to the above embodiment with respect to the common configuration with the panel storage container 1 according to the above embodiment. Furthermore, in the panel storage container having the shaft 61a according to the first modification, the cross-sectional shape of the shaft 61a is U-shaped and opens downward. In this case, as shown in formula (6), by providing one leg 73 and the other leg 73 on the mounting portion 71, the second moment of area I of the shaft 61a can be made larger than the second moment of area I of the shaft 61a according to the above embodiment. This further reduces the amount of deflection due to its own weight δ, thereby further reducing the possibility of panel damage. Because the cross-sectional shape of the shaft 61a according to the first modification is U-shaped and opens downward, moisture easily flows down the surface of the shaft 61a. This reduces the possibility of moisture remaining on the surface of the shaft 61a after cleaning the interior of the panel storage container. As a result, the drying performance of the interior of the panel storage container can be improved.

[0080] FIG. 7(b) is a cross-sectional view showing a shaft 61a according to a second modified example. The cross-sectional view shown in FIG. 7(b) is a cross-sectional view perpendicular to the extension direction of the shaft 61a (exposed portion 61e). The shaft 61a according to the second modified example differs from the shaft 61a according to the above embodiment mainly in the configuration of the exposed portion 61e. As shown in FIG. 7(b), the exposed portion 61e of the shaft 61a according to the second modified example differs from the exposed portion 61e of the shaft 61a according to the above embodiment mainly in that it includes a tubular portion 74 instead of the mounting portion 71 and the leg portion 72.

[0081] The tubular portion 74 extends over the entire exposed portion 61e in the front-rear direction. The tubular portion 74 extends in the front-rear direction and has a cylindrical shape with both ends open in the front-rear direction. The tubular portion 74 has an outer diameter D, an inner diameter d, and a length L in the front-rear direction. The tubular portion 74 has a uniform thickness.

[0082] The cross-sectional shape of the exposed portion 61e configured in this manner, perpendicular to the front-rear direction, is a non-convex figure. Specifically, the exposed portion 61e has an annular cross-sectional shape. In other words, the exposed portion 61e has a columnar shape with a substantially uniform annular cross-section throughout the entire front-rear direction.

[0083] As described above, the formulas for calculating the weight deflection amount δ and uniformly distributed load w of the shaft 61a are commonly used regardless of the shape of the shaft 61a. Therefore, the weight deflection amount δ of the shaft 61a according to the second modified example can be calculated using formula (1). The uniformly distributed load w of the shaft 61a according to the second modified example can be calculated using formula (2). As shown in formula (9), the second moment of area I of the shaft 61a according to the second modified example is calculated based on the outer diameter D and the inner diameter d. The weight deflection amount δ is calculated using the parameters of the exposed portion 61e, but in the following explanation, for convenience, the parameters used in the calculation are referred to as parameters of the shaft 61a.

number

[0084] As shown in equation (10), the cross-sectional area A of the shaft 61a according to the second modification is calculated as the difference between the area of a circle whose radius is the outer diameter D of the shaft 61a and the area of a circle whose radius is the inner diameter d.

number

[0085] The panel storage container having the shaft 61a according to the second modification also achieves the same effects as the panel storage container 1 according to the above embodiment with respect to the common configuration with the panel storage container 1 according to the above embodiment. Furthermore, in the panel storage container having the shaft 61a according to the second modification, the shaft 61a has a cylindrical shape. In this case, a hollow portion is provided in a cross section of the shaft 61a perpendicular to the front-rear direction. The shape enclosed by the outer periphery in the cross section of the shaft 61a is a circle with the outer diameter D as its radius, which is the same as the shape enclosed by the outer periphery in the cross section of the shaft 61a according to the second modification (the shaft of the comparative example) having a solid cylindrical shape with the hollow portion (missing portion) filled in. Therefore, the second moment of area I of the shaft 61a is not significantly reduced compared to the shaft of the comparative example. On the other hand, because the shaft 61a has a hollow portion, the cross-sectional area of the shaft 61a can be made smaller compared to the shaft of the comparative example. This reduces the amount of deflection δ due to the shaft's own weight, thereby reducing the possibility of panel damage. Furthermore, since the cross-sectional area of the shaft 61a can be made smaller than that of the shaft of the comparative example, the weight of the shaft 61a can be reduced, thereby reducing the load on the conveying device that conveys the panel storage container 1.

[0086] The cross section of the shaft 61a perpendicular to the front-to-rear direction may be T-shaped, U-shaped with a downward opening, or a non-convex shape other than a ring. In this case, compared to a shaft having a convex cross section in which the missing portion of a non-convex shape is filled, the cross-sectional area A of the shaft 61a can be reduced while maintaining the vertical length h and horizontal length b of the shaft 61a when panels are stored in the panel storage container 1. Therefore, the cross-sectional area A of the shaft 61a can be reduced without significantly reducing the moment of inertia of the shaft 61a, thereby reducing the amount of deflection δ of the shaft 61a due to its own weight. As a result, the possibility of panel damage can be reduced. Furthermore, compared to the above-mentioned shaft, the cross-sectional area of the shaft 61a can be reduced, thereby reducing the weight of the shaft 61a. This reduces the load on the conveying device that conveys the panel storage container 1.

[0087] To reduce the cross-sectional area of a shaft having a convex (e.g., square) cross-sectional shape, shortening the vertical or perpendicular length of the shaft is conceivable. If the vertical length of a shaft having a convex cross-sectional shape is shortened, the cross-sectional area will be reduced, but the moment of inertia will also be significantly reduced, making it impossible to reduce the amount of deflection due to its own weight. On the other hand, if the horizontal length of the shaft is shortened, the amount of deflection due to its own weight will be reduced, but the surface on which the panel is placed will also be narrowed, which may result in an inability to firmly support the panel. In contrast, shaft 61a has a non-convex cross-sectional shape, so the cross-sectional area can be reduced without significantly reducing the moment of inertia or impairing the panel support function.

[0088] The present disclosure will be described in more detail below by showing the calculation results of the amount of deflection due to weight δ and the shaft hanging angle θ when the number of panels that can be stored in the panel storage container 1 is 6 and 12, using Examples 1 to 3 and Comparative Examples 1 and 2 according to the present disclosure. Note that the present disclosure is not limited to the following examples.

[0089] Example 1 The shaft of Example 1 has the same configuration as the shaft 61a of the above embodiment. The shaft of Example 1 is made of aluminum (A5052) and has a length L of 520 mm. When the number of panels that can be stored in the panel storage container 1 is six, the width b of the mounting portion 71 is set to 9 mm, the thickness t2 of the mounting portion 71 is set to 1 mm, the thickness t1 of the leg portions 72 is set to 1 mm, and the height h1 of the leg portions 72 is set to 8 mm. Therefore, the height h of the shaft is 9 mm. When the number of panels that can be stored in the panel storage container 1 is twelve, the width b of the mounting portion 71 is set to 6 mm, the thickness t2 of the mounting portion 71 is set to 1 mm, the thickness t1 of the leg portions 72 is set to 1 mm, and the height h1 of the leg portions 72 is set to 5 mm. Therefore, the height h of the shaft is 6 mm.

[0090] Example 2 The shaft of Example 2 has the same configuration as the shaft 61a of the first modified example. The shaft of Example 2 is made of aluminum (A5052) and has a length L of 520 mm. When the number of panels that can be stored in the panel storage container 1 is six, the width b of the mounting portion 71 is set to 9 mm, the thickness t2 of the mounting portion 71 is set to 1 mm, the thickness t1 of the leg portions 73 is set to 1 mm, and the height h1 of the leg portions 73 is set to 8 mm. Therefore, the height h of the shaft is 9 mm, and the left-right distance b1 between the two leg portions 73 is 7 mm. When the number of panels that can be stored in the panel storage container 1 is twelve, the width b of the mounting portion 71 is set to 6 mm, the thickness t2 of the mounting portion 71 is set to 1 mm, the thickness t1 of the leg portions 73 is set to 1 mm, and the height h1 of the leg portions 73 is set to 5 mm. Therefore, the height h of the shaft is 6 mm, and the distance b1 between the two legs 73 in the left-right direction is 4 mm.

[0091] (Comparative Example 1) The shaft of Comparative Example 1 is a shaft in which the missing portions of the shafts of Examples 1 and 2 are filled in. In other words, the shaft of Comparative Example 1 has a square cross-sectional shape. The constituent material and length L of the shaft of Comparative Example 1 are the same as the constituent material and length L of the shafts of Examples 1 and 2. When the number of panels that can be stored in the panel storage container is 6, the height h and width b of the shaft are 9 mm. When the number of panels that can be stored in the panel storage container is 12, the height h and width b of the shaft are 6 mm.

[0092] Table 1 shows the calculation results for the shafts of Example 1, Example 2, and Comparative Example 1. The Young's modulus E and density ρ are those of aluminum (A5052). In Table 1, the cross-sectional shape of Example 1 is labeled "T-shaped," the cross-sectional shape of Example 2 is labeled "U-shaped," and the cross-sectional shape of Comparative Example 1 is labeled "square." The evaluation index for the shaft is the product of the deflection due to its own weight and the weight. This evaluation index represents the overall evaluation of the deflection due to its own weight δ and the weight. The smaller the value of the evaluation index, the better the shaft. The angle θ is calculated as shown in equation (11).

number

[0093] As shown in Table 1, in both cases where the number of panels that can be stored in the panel storage container 1 is 6 and where it is 12, the amount of deflection under weight δ of the shafts of Examples 1 and 2 is less than the amount of deflection under weight δ of the shaft of Comparative Example 1, and the weights of the shafts of Examples 1 and 2 are lighter than the weight of the shaft of Comparative Example 1. In both cases where the number of panels that can be stored in the panel storage container 1 is 6 and where it is 12, the values of the evaluation index of the shafts of Examples 1 and 2 are smaller than the value of the evaluation index of the shaft of Comparative Example 1. From the above, it can be said that the shafts of Examples 1 and 2 are superior to the shaft of Comparative Example 1.

[0094] Example 3 The shaft of Example 3 has the same configuration as the shaft 61a of Modified Example 2. The shaft of Example 3 is made of aluminum (A5052) and has a length L of 520 mm. When the number of panels that can be stored in the panel storage container 1 is six, the outer diameter D of the tubular portion 74 is set to 9 mm, and the inner diameter d is set to 7 mm. When the number of panels that can be stored in the panel storage container 1 is twelve, the outer diameter D of the tubular portion 74 is set to 6 mm, and the inner diameter d is set to 4 mm.

[0095] (Comparative Example 2) The shaft of Comparative Example 2 is a shaft in which the missing portion of the shaft of Example 3 is filled in. In other words, the shaft of Comparative Example 2 has a solid circular cross-sectional shape. The constituent material and length L of the shaft of Comparative Example 2 are the same as the constituent material and length L of the shaft of Example 3. When the number of panels that can be stored in the panel storage container is 6, the outer diameter D (diameter) of the shaft is 9 mm. When the number of panels that can be stored in the panel storage container is 12, the outer diameter D (diameter) of the shaft is 6 mm.

[0096] Table 2 shows the calculation results for the shafts of Example 3 and Comparative Example 2. The Young's modulus E and density ρ are those of aluminum (A5052). In Table 2, the cross-sectional shape of Example 3 is shown as "circle (hollow)" and the cross-sectional shape of Comparative Example 2 is shown as "circle (solid)." [Table 2]

[0097] As shown in Table 2, in both cases where the number of panels that can be stored in the panel storage container 1 is 6 and where it is 12, the amount of deflection due to weight δ of the shaft of Example 3 is less than the amount of deflection due to weight δ of the shaft of Comparative Example 2, and the weight of the shaft of Example 3 is lighter than the weight of the shaft of Comparative Example 2. In both cases where the number of panels that can be stored in the panel storage container 1 is 6 and where it is 12, the value of the evaluation index of the shaft of Example 3 is less than the value of the evaluation index of the shaft of Comparative Example 2. From the above, it can be said that the shaft of Example 3 is superior to the shaft of Comparative Example 2. [Explanation of symbols]

[0098] 1...panel storage container, 2...container body, 20...storage space, 26b...pillar (first pillar), 26c...pillar (second pillar), 60...panel support portion, 61a...shaft (first shaft), 61c...end portion (first end portion), 62a...shaft (second shaft), 62c...end portion (second end portion), 65...support body, 71...placing portion, 71a...upper surface (first surface), 71b...lower surface (second surface), 72...leg portion (first leg portion), 73...leg portion (first leg portion, second leg portion).

Claims

1. a container body for storing a plurality of panels arranged in a first direction; a panel support portion provided inside the container body and supporting the plurality of panels; Equipped with the panel support portion includes a first shaft extending in a second direction intersecting the first direction for supporting one panel of the plurality of panels; the container body includes a first support pillar; the first shaft has an end in the second direction, the first end being fitted into the first support pillar, and an exposed portion exposed from the first support pillar; a cross-sectional shape of the exposed portion perpendicular to the second direction is different from a cross-sectional shape of the first end portion perpendicular to the second direction, The cross-sectional shape of the exposed portion perpendicular to the second direction is a non-convex shape.

2. the exposed portion includes a mounting portion and a first leg portion provided on the mounting portion, the mounting portion has a first surface on which the panel is mounted and a second surface opposite to the first surface, the first leg extends from the second surface in the first direction; the first surface and the second surface are surfaces that intersect with the first direction, The panel storage container according to claim 1 , wherein a length of the first leg portion in a third direction intersecting the first direction and the second direction is smaller than a length of the placement portion in the third direction.

3. the exposed portion is provided on the mounting portion and further includes a second leg portion extending from the second surface in the first direction, 3. The panel storage container according to claim 2, wherein a sum of a length of the first leg portion in the third direction and a length of the second leg portion in the third direction is smaller than a length of the placement portion in the third direction.

4. The panel storage container according to claim 1 , wherein the exposed portion has a cylindrical shape.

5. the panel support portion includes a second shaft extending in the second direction for supporting the panel, and a support body supporting the second shaft; the first shaft and the second shaft are arranged in a third direction intersecting the first direction and the second direction, the second shaft has a second end that is an end in the second direction, The panel storage container according to claim 1 or 4, wherein the container body further comprises a second support to which the second end is fixed.

6. the panel support portion includes a second shaft extending in the second direction for supporting the panel, and a support body supporting the second shaft; the first shaft and the second shaft are aligned in the third direction, the second shaft has a second end that is an end in the second direction, The panel storage container according to claim 2 or 3, wherein the container body further comprises a second support to which the second end is fixed.

7. The panel storage container according to claim 5 or 6, wherein a cross-sectional shape of the second shaft perpendicular to the second direction is different from the cross-sectional shape of the exposed portion.

Images