KR20230138901A - Panel storage container - Google Patents

Abstract

The present invention provides a panel storage container capable of suppressing panel damage. A panel storage container includes 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, and the panel support portion includes a plurality of panels. It has a shaft extending in a second direction intersecting the first direction for supporting one of the panels, the shaft includes an end in the second direction, and the container body includes a support for fixing the shaft. Provided with, the strut includes a first member and a second member sandwiching an end in a third direction intersecting the first direction and the second direction, and the first member has an end portion extending away from the second member in the third direction. A first groove extending in a second direction with a depression in the direction is provided, and the second member is provided with a second groove extending in the second direction with a depression in a direction away from the first member in the third direction. This is provided, and the shaft is fixed by having its ends accommodated in the first and second grooves and being held in the third direction by the first and second members.

Description

Panel storage container {PANEL STORAGE CONTAINER}

This disclosure relates to a panel storage container.

In a manufacturing process that handles panels such as glass substrates for liquid crystal panels, a panel storage container that stores a plurality of panels when transferring a rectangular-shaped panel from a manufacturing device to a manufacturing device in another process and when temporarily storing the panels. is used. For example, Japanese Patent Application Publication No. 2019-31297 describes a panel storage container including a container body for storing a plurality of panels and panel support means for supporting the panels. The panel support means includes a central support member that supports the central portion of the panel, and the central support member is supported by fitting the base end of the central support member into a round hole-shaped fitting recess provided in the support column.

In the panel storage container described in Japanese Patent Application Publication No. 2019-31297, a gap may occur between the base end and the fitting concave portion due to dimensional tolerances, etc. If this gap is large, there is a risk that the central support member may tilt when fixing the central support member to the support using a bolt or the like. For example, when the central support member is inclined in the vertical direction, the gap between two central support members adjacent to each other in the vertical direction becomes smaller than the design value. When a panel is brought in between these two central support members, or when a panel is unloaded from between these two central support members, there is a risk that the panel may interfere with the central support member and cause damage to the panel.

Japanese Patent Publication No. 2019-31297

The present disclosure provides a panel storage container capable of suppressing panel damage.

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 to support the plurality of panels. . The panel support portion has a shaft extending in a second direction intersecting the first direction for supporting one panel among the plurality of panels. The shaft includes an end in a second direction. The container body is provided with a support for fixing the shaft. The strut includes a first member and a second member holding ends in a third direction intersecting the first and second directions. The first member is provided with a depression in a direction away from the second member in the third direction and a first groove extending in the second direction. The second member is provided with a depression in a direction away from the first member in the third direction and a second groove extending in the second direction. The shaft is fixed by having the end portions held in the third direction by the first member and the second member while the end portions are accommodated in the first groove and the second groove.

In this panel storage container, the shaft is fixed by holding the end portion in the third direction by the first member and the second member while the end portion is accommodated in the first groove and the second groove. When the end is clamped by the first member and the second member, the force with which the first member presses the end in the third direction and the force with which the second member presses the end in the third direction are not uniform across the entire end. Even if not, the end may be inclined in the third direction, but the end may be suppressed from being inclined in the first direction. Accordingly, it is possible to prevent the shaft from being inclined in the first direction. As a result, the possibility of the panel interfering with the shaft can be reduced when the panel is transported to or unloaded from the panel storage container, and damage to the panel can be suppressed.

In some embodiments, the inner peripheral surface of the first groove may include a first inclined surface and a second inclined surface that are inclined away from each other in the first direction as they approach the second member in the third direction, with the ends having It may be in contact with the first inclined surface and the second inclined surface while being clamped in the third direction by the first member and the second member. When the end is held in the third direction by the first member and the second member, the first member presses the end in the third direction. At this time, at the point where the end is in contact with the first inclined surface and the second inclined surface, it receives a force from the first inclined surface in a direction perpendicular to the first inclined surface, and receives a force from the second inclined surface in a direction perpendicular to the second inclined surface. . Since the first inclined surface and the second inclined surface are inclined so as to move away from each other in the first direction as they approach the second member in the third direction, the component in the first direction of the force received by the end from the first inclined surface and the second The components of the force received by the end portion from the inclined surface in the first direction are in opposite directions. Accordingly, since the movement of the end in the first direction is regulated, the end can be suppressed from being inclined in the first direction, and the shaft can be suppressed from being inclined in the first direction. As a result, damage to the panel can be suppressed.

In some embodiments, the inner peripheral surface of the first groove may include a first side and a second side that face each other in the first direction, and the ends are sandwiched in the third direction by the first member and the second member. In this state, it may be in contact with the first side and the second side. In this case, the end is sandwiched between the first side and the second side in the first direction. Accordingly, since the movement of the end in the first direction is regulated, the end can be suppressed from being inclined in the first direction, and the shaft can be suppressed from being inclined in the first direction. As a result, damage to the panel can be suppressed.

In some embodiments, the inner peripheral surface of the first groove may include a bottom portion furthest from the second member in the third direction, and the end portion is sandwiched in the third direction by the first member and the second member. In this state, it may be in contact with the bottom. In this case, the force with which the first member presses the end portion in the third direction acts from the bottom to the end portion with almost no disintegration. For this reason, the maximum static friction force in the first direction increases, so the end portion is suppressed from moving in the first direction. Accordingly, the end portion can be suppressed from being inclined in the first direction, and the shaft can be suppressed from being inclined in the first direction. As a result, damage to the panel can be suppressed.

In some embodiments, the first groove may have a shape along the end. In this case, in a state where the end is held in the third direction by the first member and the second member, the gap between the inner peripheral surface of the first groove and the outer peripheral surface of the end can be reduced. As a result, the end portion can be suppressed from being inclined in the first direction, and the shaft can be suppressed from being inclined in the first direction. As a result, damage to the panel can be suppressed.

In some embodiments, the first member may be spaced apart from the second member in a state where the ends are sandwiched by the first member and the second member in the third direction. For example, in a state where the ends are held in the third direction by the first member and the second member, and the first member and the second member are in contact in the third direction, the first member and the second member are held in the third direction. It cannot be made closer in direction. In such a case, the clamping force by the first member and the second member may not sufficiently act on the end portion. According to the above configuration, since the first member and the second member are spaced apart, sufficient clamping force can be applied to the end portion without the first member and the second member interfering in the third direction.

In some embodiments, the first member may include a convex portion that protrudes from the inner peripheral surface of the first groove in a direction intersecting the second direction, and may be provided at an end with a concave portion in which the convex portion is accommodated. According to this configuration, even if a force in the second direction is applied to the shaft, the convex portion interferes with the concave portion, thereby restricting movement of the shaft in the second direction. Therefore, the possibility of the shaft falling off from the support can be reduced.

In some embodiments, the first member may include a first conductive member provided with a first groove and a first body portion that holds the first conductive member. The second member may include a second conductive member provided with a second groove and a second body portion that holds the second conductive member. The resistance value of the first conductive member may be greater than the resistance value of the shaft and the resistance value of the first body portion. The resistance value of the second conductive member may be greater than the resistance value of the shaft and the resistance value of the second body portion. In this case, the end of the shaft is held in the first groove provided in the first conductive member and the second groove provided in the second conductive member, and is held in the third direction by the first member and the second member. That is, the shaft is fixed to the support through the first conductive member and the second conductive member. Therefore, compared to a configuration in which the shaft is directly fixed to the support column without passing through the first conductive member and the second conductive member, the resistance value of the path from the shaft to the first body portion and the second body portion increases. As a result, the occurrence of electrostatic discharge when a charged panel is placed on the shaft can be suppressed. On the other hand, since the first conductive member and the second conductive member have conductivity, from the panel placed on the shaft, the order is the shaft, the first conductive member, and the first body part, or the shaft, the second conductive member, and the second main body part. Current can flow in negative order. Therefore, static electricity can be eliminated from the panel. From the above, it becomes possible to eliminate static electricity from the panel while suppressing the occurrence of electrostatic discharge.

According to the present disclosure, damage to the panel can be suppressed.

1 is an exploded perspective view of a panel storage container according to one embodiment.
FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1.
Figure 3 is a diagram for explaining an aspect in which a shaft is fixed to a support.
FIG. 4 is an exploded perspective view of the support portion and strut shown in FIG. 2.
FIG. 5 is a cross-sectional view taken along line VV of FIG. 3.
Figure 6(a), Figure 6(b), and Figure 6(c) are diagrams showing modified examples of the support column.
Figure 7 is a diagram showing another modified example of a support.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. Additionally, in the description of the drawings, like elements are given the same reference numerals, and overlapping descriptions are omitted. Each degree represents the XYZ coordinate system. The Y-axis direction is a direction that intersects (here, is perpendicular to) the X-axis direction and the Z-axis direction. The Z-axis direction is a direction that intersects (here, is perpendicular to) the X-axis direction and the Y-axis direction. As an example, the . For convenience of explanation, the terms 'front', 'back', 'top', 'bottom', 'left' and 'right' are used, but are not limited to these directions.

Referring to FIG. 1, a panel storage container according to one embodiment will be described. 1 is an exploded perspective view of a panel storage container according to one embodiment. The panel storage container 1 shown in FIG. 1 is a container for storing a plurality of panels. The panel storage container 1 complies with, for example, SEMI (Semiconductor Equipment and Materials International) standards. Examples of the panel include a glass substrate for a liquid crystal panel and a panel equipped with electronic components. The panel has 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 arbitrarily determined, and may be, for example, 6, 12, 16, or 24 panels.

The panel storage container 1 is used, for example, in a manufacturing device that manufactures electronic component assemblies. Electronic component assembly includes, for example, a process of mounting a large number of electronic components on a large carrier panel such as a glass plate or stainless steel plate, a process of encapsulating these electronic components with epoxy resin, etc., and transporting the sealed electronic components from the carrier panel in the form of a panel. It is manufactured through a peel-off process and a process of individually cutting panel-shaped electronic components. The panel storage container 1 is used to transport panels between these processes.

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

The container body 2 is a rectangular parallelepiped-shaped container whose front (front) is open. In other words, the container body 2 is a front open box-type container with an opening 2a provided on the front. The container body 2 accommodates a plurality of panels. Specifically, the container body 2 accommodates a plurality of panels arranged in the vertical direction. The panel enters and exits the container body 2 through the opening 2a. Details of the container body 2 will be described later.

The cover body 3 is a member for closing the opening 2a of the container body 2. The cover body 3 airtightly closes the opening 2a of the container body 2 through a sealing member such as a gasket. The cover body 3 is removably attached to the flange 25 that defines the opening 2a. The cover body 3 is provided with a cover body 31 and a locking mechanism 32. The cover body 31 is the main body portion of the cover body 3. The cover body 31 is a rectangular plate. The cover body 31 is made of a metal material such as aluminum and magnesium alloy, for example. The cover body 31 may be made of a thermoplastic resin such as polycarbonate resin. A key hole 33 is provided on the front side of the cover body 31. A key (not shown) is inserted into the key hole 33.

The locking mechanism 32 locks or unlocks the cover body 3 by operating a key inserted into the key hole 33. The locking mechanism 32 includes a latch (not shown). With the cover body 3 mounted on the flange 25, the latch is inserted into the locking hole 25h provided in the flange 25 by operating the key, thereby locking the cover body 3. In a state where the cover body 3 is locked, the latch is pulled out from the lock hole 25h by operating the key, thereby releasing the cover body 3.

The container body 2 and the cover body 3 are constructed by combining a plurality of parts molded from a metal material or a resin material. Examples of resins contained in molding materials of resin materials include thermoplastic resins. Examples of thermoplastic resins include acrylic resins such as polycarbonate, cycloolefin polymer, polyetherimide, polyether ketone, polyetherether ketone, polybutylene terephthalate, polyacetal, liquid crystal polymer, polymethyl methacrylate, and acrylic resin. and nitrile butadiene styrene copolymer. As the resin contained in the molding material of the resin material, these alloys may be used.

Conductive substances and various antistatic agents may be added to these resins. Conductive materials include, for example, carbon fibers, carbon powder, carbon nanotubes, or conductive polymers. As an antistatic agent, antistatic agents such as anionic, cationic, and nonionic antistatic agents can be used. Benzotriazole-based, salicylate-based, cyanoacrylate-based, oxalic acid anilide-based, and hindered amine-based ultraviolet absorbers may be added to these resins. Glass fiber or carbon fiber that improves rigidity may also be optionally added to these resins.

Next, the container body 2 will be described in detail. The container body 2 includes a top plate 21, a bottom plate 22, a pair of side walls 23, a back wall 24, a flange 25, a frame 26, a support portion 27, and a side wall. It is provided with a plate (28).

The top plate 21, bottom plate 22, side wall 23, and back wall 24 are rectangular plates. The top plate 21 and the bottom plate 22 face each other in the vertical direction and are arranged substantially parallel. The pair of side walls 23 face each other in the left and right directions and are arranged substantially in parallel. The back wall 24 connects the rear end of the top plate 21 and the rear end of the bottom plate 22, and connects the rear ends of a pair of side walls 23. The accommodation space 20 is defined by the top plate 21, the bottom plate 22, a pair of side walls 23, and the rear wall 24.

The top plate 21, the bottom plate 22, and the side walls 23 are made of metal materials such as aluminum and stainless steel, for example. The back wall 24 is made of, for example, a transparent resin material that allows the accommodation space 20 to be visible from the outside of the container body 2. A portion of the back 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.

The flange 25 is a rectangular frame and is provided across the front end of the top plate 21, the front end of the bottom plate 22, and the front end of the pair of side walls 23. The opening 2a is defined by the flange 25. The flange 25 is made of, for example, the above-mentioned resin material or metal material such as aluminum and stainless steel. Two locking holes 25h arranged spaced apart in the left and right directions are provided in each of the upper frame portion and the lower frame portion of the flange 25. The locking hole 25h of the upper frame portion and the locking hole 25h of the lower frame portion are provided at positions facing each other in the vertical direction.

The frame 26 is used to fix the top plate 21, the bottom plate 22, the pair of side walls 23, and the rear wall 24. Parts of the frame 26 excluding the conductive members 66c and 67c, which will be described later, are made of metal materials such as aluminum and stainless steel, for example. The frame 26 is provided on the front side of the back wall 24. The frame 26 includes a frame portion 26a (see Fig. 2), a strut 26b (see Fig. 2), and a pair of struts 26c (see Fig. 2). The frame portion 26a is a rectangular member and is provided along the periphery of the back wall 24.

The strut 26b and the pair of struts 26c are column-shaped members extending in the vertical direction. One strut 26c, the strut 26b, and the other strut 26c are arranged in that order in the left and right directions, and are arranged substantially parallel to each other. The strut 26b and the pair of struts 26c extend from the upper frame portion to the lower frame portion of the frame portion 26a. The support post 26b is provided at the center of the frame 26 in the left and right directions. A pair of supports 26c are provided near both ends of the frame 26 in the left and right directions.

The support 26b is a member for fixing the shaft 61a, which will be described later. The specific configuration of the support 26b will be described later. The support 26c is a member for fixing the shaft 62a, which will be described later. The support 26c is provided with a plurality of fitting holes for mounting the shaft 62a. These fitting holes are recessed from the front of the strut 26c toward the rear.

The stand portion 27 is a portion that becomes the base of the container body 2. The stand portion 27 is made of metal materials such as aluminum and stainless steel, for example. The stand portion 27 is provided on the lower surface of the bottom plate 22. The stand portion 27 is constructed by combining a plurality of pillar-shaped support members.

The side plate 28 is a member for mounting a support body 65, which will be described later. The side plate 28 is a plate-shaped member extending in the vertical direction. The side plate 28 is made of metal materials such as aluminum and stainless steel, for example. The side plate 28 is provided on the outer surface of the side wall 23. In this embodiment, two side plates 28 are provided on each side wall 23. The two side plates 28 are arranged in the front-back direction and are arranged substantially parallel to each other. One side plate 28 is provided near the center of the side wall 23 in the front-back direction, and the other side plate 28 is provided near the front end of the side wall 23 in the front-back direction.

Each part of the container body 2 is provided with a cover member to prevent particles from entering the storage space 20.

Next, with reference to FIG. 2, the configuration within the accommodation space 20 will be described. FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1. As shown in FIG. 2, 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 (accommodation 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.

The number of supports 61, 62, stoppers 63, and 64 changes depending on the number of panels that can be stored in the panel storage container 1. In this embodiment, the panel support part 60 is provided with one support part 61, two support parts 62, two stoppers 63, and two stoppers 64 per panel. In other words, a storage stage for storing one panel is formed by one support portion 61, two support portions 62, two stoppers 63, and two stoppers 64.

The support portion 61 is a portion for supporting the central portion of the panel in the left and right directions. The support portion 61 includes a shaft 61a. The shaft 61a is a pillar-shaped (for example, cylindrical) member extending in the front-back direction. The shaft 61a is used to support one panel. The shaft 61a includes an end 61b and an end 61c, which are both ends in the extending direction (front-back direction) of the shaft 61a. The shaft 61a is made of, for example, a material with high bending rigidity. Examples of constituent materials of the shaft 61a include metals such as stainless steel and aluminum, and carbon fiber reinforced plastic. The end 61b of the shaft 61a is fixed to the support 26b. The manner of fixing the shaft 61a will be described later.

The end portion 61b is provided with a concave portion 61d (see FIGS. 3 and 4). The concave portion 61d has a shape that can accommodate the convex portion 66j described later. In this embodiment, the concave portion 61d has a shape in which a portion of a cylinder is missing.

The support portion 62 is a portion for supporting both ends of the panel in the left and right directions. The support portion 62 includes a shaft 62a, a plurality of elastic bodies 62b, and a plurality of support bodies 65. The shaft 62a is a pillar-shaped (for example, cylindrical) member extending in the front-back direction. The shaft 62a is used to support one panel. The shaft 62a includes an end 62c and an end 62d, which are both ends in the extending direction (front-back direction) of the shaft 62a. The end portion 62c of the shaft 62a is fitted into the fitting hole of the strut 26c, and is fixed to the strut 26c with a screw.

The shaft 62a is made of, for example, a material with high bending rigidity. Examples of constituent materials of 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-back direction is slightly longer than the front-back direction of the panel, and is longer than the length of the shaft 61a in the front-back direction. The shaft 61a and the pair of shafts 62a are arranged in the left and right directions. A shaft 61a is disposed between a pair of shafts 62a.

The elastic body 62b is an annular (for example, annular) member provided to surround the shaft 62a around the axis of the shaft 62a. The elastic body 62b is provided along the surface of the shaft 62a. The elastic body 62b is provided to suppress slippage of the panel and improve the positioning accuracy of the panel. From the viewpoint of preventing slippage of the panel, the elastic body 62b may have higher friction (friction force) than the shaft 62a. From the viewpoint of preventing damage to the panel, the elastic body 62b may have higher elasticity (cushioning properties) than the shaft 62a. The elastic body 62b is made of, for example, a rubber material. Examples of rubber materials include EPDM (ethylene propylene diene rubber), silicone rubber, and fluorine rubber. The plurality of elastic bodies 62b are arranged at regular intervals in the extending direction of the shaft 62a.

The support body 65 is a member that holds (supports) the shaft 62a and supports end portions of the panel in the left and right directions. At the tip of the support body 65, an insertion hole is provided that penetrates the support body 65 in the front-back direction, and a shaft 62a penetrates the insertion hole. The support body 65 includes an inclined surface that slopes downward from the base end of the support body 65 toward the tip.

The proximal end portion of the support body 65 is brought into contact with the inner surface of the side wall 23, and the side plate 28, the side wall 23, and the support body 65 are positioned by a knock pin (not shown). In this state, the screw is inserted into the insertion hole provided in the side plate 28 from the outside of the side plate 28, and the screw is screwed into the screw hole provided in the proximal end portion of the support body 65. In this way, the support body 65 is fixed to the side plate 28 in a state where the side wall 23 is sandwiched between the support body 65 and the side plate 28.

The stopper 63 is a member that prevents the panel from jumping 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 mounted on the shaft 62a by inserting the end portion 62d of the shaft 62a into the mounting hole provided in the stopper 63. The stopper 63 includes a disk-shaped locking piece 63a having an outer diameter larger than that of the elastic body 62b. The locking piece 63a includes an inclined surface that slopes backward from the outer peripheral surface toward the center.

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-shaped shape. The stopper 64 is provided with an insertion hole for inserting the shaft 62a in the front-back direction. With the shaft 62a inserted into the insertion hole of the stopper 64, the rear of the stopper 64 is in contact with the front of the support 26c, and the stopper 64 is fixed to the support 26c by a screw. . The stopper 64 includes an inclined surface that slopes forward as it goes downward from the upper surface.

The stopper 63, the stopper 64, and the support body 65 define a position where the panel is placed. Specifically, the mounting position of the panel in the front-back direction is defined by the stoppers 63 and 64. The mounting position of the panel in the left and right directions is defined by the four supports 65 provided on the left and right. For example, a panel is brought into the storage space 20 by a robot, and the panel is placed on a storage stage. At this time, the position of the panel may be slightly shifted due to errors or the like. For example, even if the front end of the panel rides on the inclined surface of the locking piece 63a of the stopper 63, it is guided to the mounting position along the inclined surface by the panel's own weight. Likewise, even if the rear end of the panel rides on the inclined surface of the stopper 64, it is guided to the mounting position along the inclined surface by the panel's own weight. Likewise, even if the side end of the panel rides on the inclined surface of the support body 65, the panel's own weight guides it to the mounting position along the inclined surface.

Next, with reference to FIGS. 3 to 5, the fixing mode of the shaft 61a will be described. Figure 3 is a diagram for explaining an aspect in which a shaft is fixed to a support. FIG. 4 is an exploded perspective view of the support portion and strut shown in FIG. 2. FIG. 5 is a cross-sectional view taken along line V-V in FIG. 3.

As shown in FIGS. 3 and 4, the strut 26b is provided with a rear block 66 (first member) and a clamping plate 67 (second member). The rear block 66 and the clamping plate 67 are members for clamping the end portion 61b of the shaft 61a in the left and right directions.

The rear block 66 is a member extending in the vertical direction. The rear block 66 extends from the upper frame portion of the frame portion 26a to the lower frame portion. The rear block 66 includes a body portion 66a (first body portion) and a plurality of conductive members 66c (first conductive members). Among the side surfaces of the main body 66a in the left and right directions, a plurality of concave portions 66b are provided on the side 66s facing the clamping plate 67. The main body portion 66a holds the conductive member 66c by fitting the conductive member 66c into the concave portion 66b. The number of recesses 66b and conductive members 66c changes depending on the number of shafts 61a included in the panel storage container 1.

The concave portion 66b is a portion that holds the conductive member 66c. The concave portion 66b is a groove extending in the front-back direction and penetrates the main body portion 66a in the front-back direction. The concave portion 66b has a shape capable of fitting the conductive member 66c, and has a U-shaped shape open toward the clamping plate 67.

The conductive member 66c is a member that electrically connects the shaft 61a and the main body portion 66a. The conductive member 66c fits into the recessed portion 66b and extends in the front-back direction over the entire length of the recessed portion 66b. The conductive member 66c is made of, for example, a conductive resin material. Such resin materials contain conductive substances such as carbon. The resistance value of the conductive member 66c is greater than the resistance value of the shaft 61a and the resistance value of the main body portion 66a. The resistance value of the conductive member 66c is, for example, 10 ⁴ to 10 ⁹ Ω.

A groove 66d (first groove) is provided in the conductive member 66c. The groove 66d is used to accommodate the shaft 61a. The groove 66d is recessed in a direction away from the clamping plate 67 in the left and right direction. The groove 66d extends in the front-back direction from the front end of the conductive member 66c to the rear end of the conductive member 66c. As shown in FIG. 5, the groove 66d has a shape along the outer peripheral surface of the end 61b of the shaft 61a. Specifically, the groove 66d has a U-shaped shape when viewed from the front-back direction. The length of the groove 66d in the vertical direction becomes shorter as it moves away from the clamping plate 67 in the left and right directions. The inner peripheral surface of the groove 66d includes side 66e (first side), side 66f (second side), inclined surface 66g (first inclined surface), inclined surface 66h (second inclined surface), and bottom. Includes surface 66i (bottom).

The side surfaces 66e and 66f face each other in the vertical direction. The side surfaces 66e and 66f are substantially parallel to each other and are substantially perpendicular to the vertical direction. The inclined surface 66g and the inclined surface 66h are inclined so as to move away from each other in the vertical direction as they approach the clamping plate 67. The bottom surface 66i is furthest from the clamping plate 67 in the left and right directions among the inner peripheral surfaces of the grooves 66d. The bottom surface 66i is a surface substantially perpendicular to the left-right direction. The side surface 66e, the inclined surface 66g, the bottom surface 66i, the inclined surface 66h, and the side surface 66f are connected in that order. The end portion 61b is clamped in the left and right directions by the rear block 66 and the clamping plate 67, and is positioned on the side surface 66e, the side surface 66f, the inclined surface 66g, the inclined surface 66h, and the bottom. It is in contact with the surface 66i.

The conductive member 66c includes a convex portion 66j provided on the inner peripheral surface of the groove 66d. The convex portion 66j is a portion for regulating movement of the shaft 61a in the front-back direction. The convex portion 66j protrudes from the inner peripheral surface of the groove 66d in a direction intersecting the front-back direction. In this embodiment, the convex portion 66j is provided near the center of the conductive member 66c in the front-back direction and protrudes from the bottom surface 66i toward the clamping plate 67. The convex portion 66j has a shape that can fit into the concave portion 61d.

The conductive member 66c includes flanges 66t provided at both front and rear ends thereof. The flange 66t is a portion for preventing the conductive member 66c from falling off from the main body 66a. A screw hole into which a fastening member such as a bolt can be screwed is provided on the side 66s located between the two concave portions 66b adjacent to each other in the vertical direction.

The clamping plate 67 is a member extending in the vertical direction. The clamping plate 67 extends from the upper frame portion to the lower frame portion of the frame portion 26a. The clamping plate 67 includes a body portion 67a (second body portion) and a plurality of conductive members 67c (second conductive members). Among the side surfaces of the main body 67a in the left and right directions, a plurality of concave portions 67b are provided on the side 67s facing the rear block 66. The main body portion 67a holds the conductive member 67c by fitting the conductive member 67c into the concave portion 67b. The recessed portions 67b face the recessed portions 66b in the left and right directions, and the number of recessed portions 67b is equal to the number of recessed portions 66b. The number of conductive members 67c is the same as the number of conductive members 66c.

The concave portion 67b is a portion that holds the conductive member 67c. The concave portion 67b is a groove extending in the front-back direction and penetrates the main body portion 67a in the front-back direction. The concave portion 67b has a shape capable of fitting the conductive member 67c, and has a U-shaped shape open toward the rear block 66.

The conductive member 67c is a member that electrically connects the shaft 61a and the main body portion 67a. The conductive member 67c fits into the recessed portion 67b and extends in the front-back direction over the entire length of the recessed portion 67b. The conductive member 67c is made of, for example, a conductive resin material. Such resin materials contain conductive substances such as carbon. The resistance value of the conductive member 67c is greater than the resistance value of the shaft 61a and the resistance value of the main body portion 67a. The resistance value of the conductive member 67c is, for example, 10 ⁴ to 10 ⁹ Ω. The constituent material of the conductive member 67c may be the same as that of the conductive member 66c.

A groove 67d (second groove) is provided in the conductive member 67c. The groove 67d is used to accommodate the shaft 61a. The groove 67d is recessed in a direction away from the rear block 66 in the left and right directions. The groove 67d extends in the front-back direction from the front end of the conductive member 67c to the rear end of the conductive member 67c. The groove 67d has a shape along the outer peripheral surface of the end 61b of the shaft 61a. Specifically, the groove 67d has a U-shape (circular arc shape) when viewed from the front-back direction. The length of the groove 67d in the vertical direction becomes shorter as it moves away from the rear block 66 in the left and right directions. The depth of the groove 66d (distance from the side 66s in the left-right direction to the bottom surface 66i) and the depth of the groove 67d (from the side 67s in the left-right direction to the bottom of the groove 67d) The sum of the distances) is smaller than the length (diameter) of the end portion 61b in the left and right directions. The end portion 61b is clamped in the left and right directions by the rear block 66 and the clamping plate 67 and is in contact with the entire inner peripheral surface of the groove 67d.

The conductive member 67c includes flanges 67t provided at both front and rear ends thereof. The flange 67t is a part that prevents the conductive member 67c from falling off from the main body 67a. A through hole penetrating the clamping plate 67 in the left-right direction is provided on the side surface 67s located between the two concave portions 67b adjacent to each other in the vertical direction.

Each conductive member 66c fits into a recessed portion 66b of the main body 66a, and each conductive member 67c fits into a recessed portion 67b of the main body 67a. Then, the rear block 66 and the clamping plate 67 are arranged so that the grooves 66d and 67d face each other in the left and right directions. And, the end 61b of the shaft 61a is accommodated in the groove 66d and the groove 67d so that the convex portion 66j is accommodated in the concave portion 61d, and the end portion 61b of the shaft 61a is accommodated in the rear block 66. ) and the clamping plate 67. At this time, the rear block 66 and the clamping plate 67 are spaced apart in the left and right directions. In this state, a fastening member such as a bolt is inserted through the through hole of the clamping plate 67 and screwed into the screw hole of the rear block 66. As a result, a gripping force in the left and right directions is applied to the end portion 61b by the rear block 66 and the clamping plate 67, and the outer peripheral surface of the end portion 61b is the inner peripheral surface of the groove 66d and the inner peripheral surface of the groove 67d. is pressurized. Specifically, the end portion 61b is pressed against the bottom surface 66i, the inclined surface 66g, and the inclined surface 66h. At this time, the end portion 61b is also in contact with the side surfaces 66e and 66f. In this way, the shaft 61a is fixed to the support 26b.

Next, the operational effects of the panel storage container 1 will be explained. As described above, the panel is brought into the storage space 20 by a robot, and the panel is placed on a certain storage stage. At this time, the panel is brought in above the mounting position (shaft 61a and the pair of shafts 62a), and the panel is lowered to the mounting position. Therefore, when the end portion 61c is lower than the designed height due to the shaft 61a being inclined in the vertical direction, when loading a panel from the storage end below the shaft 61a, the robot or the panel, and the end portion ( 61c) may interfere and cause damage to the panel. Similarly, when the panel stored in the panel storage container 1 is taken out by the robot, the panel placed in the mounting position is lifted upward by the robot, and then from the storage space 20 into the panel storage container. It is taken out of (1). Therefore, when the end portion 61c is lower than the designed height due to the shaft 61a being inclined in the vertical direction, when the panel is unloaded from the storage end below the shaft 61a, the robot or the panel, and the end portion ( 61c) may interfere and cause damage to the panel.

On the other hand, in the panel storage container 1, with the end portion 61b accommodated in the groove 66d and the groove 67d, the end portion 61b is moved in the left and right directions by the rear block 66 and the clamping plate 67. By being clamped in, the shaft 61a is fixed. For example, when the end portion 61b is clamped by the rear block 66 and the clamping plate 67, the force with which the rear block 66 presses the end portion 61b and the clamping plate 67 exert pressure on the end portion 61b. The force pressing may not be uniform across the entire end portion 61b. In this case, there is a possibility that the end portion 61b is inclined in the left-right direction, but tilting of the end portion 61b in the vertical direction is suppressed. Therefore, it is possible to prevent the shaft 61a from tilting in the vertical direction. As a result, the possibility of the panel interfering with the shaft 61a can be reduced when conveying the panel to the panel storage container 1 or when unloading the panel from the panel storage container 1, thereby preventing damage to the panel. It can be suppressed.

The groove 66d has a shape along the outer peripheral surface of the end portion 61b. Therefore, in a state where the end portion 61b is clamped in the left and right directions by the rear block 66 and the clamping plate 67, the gap between the inner peripheral surface of the groove 66d and the outer peripheral surface of the end portion 61b can be reduced. there is. Thereby, the end portion 61b can be suppressed from being inclined in the vertical direction, and the shaft 61a can be suppressed from being inclined in the vertical direction. As a result, damage to the panel can be suppressed.

Specifically, the end portion 61b is clamped in the left and right directions by the rear block 66 and the clamping plate 67, and has a side surface 66e, a side surface 66f, an inclined surface 66g, and an inclined surface 66h. ), and is in contact with the bottom surface 66i. Here, when the rear block 66 and the clamping plate 67 clamp the end portion 61b in the left and right directions, the rear block 66 presses the end portion 61b in the left and right directions. At this time, since the end portion 61b is in contact with the inclined surface 66g and the inclined surface 66h, it receives a force from the inclined surface 66g in a direction perpendicular to the inclined surface 66g, and from the inclined surface 66h, the inclined surface 66h ) receives a force in a direction perpendicular to Since the inclined surface 66g and the inclined surface 66h are inclined so as to move away from the vertical direction as they approach the clamping plate 67 in the left and right directions, the vertical component of the force received by the end portion 61b from the inclined surface 66g And, the vertical components of the force received by the end portion 61b from the inclined surface 66h are in opposite directions. Accordingly, since the movement of the end portion 61b in the vertical direction is regulated, the end portion 61b can be suppressed from tilting in the vertical direction, and the shaft 61a can be suppressed from tilting in the vertical direction. As a result, damage to the panel can be suppressed.

As described above, the end portion 61b is clamped in the left and right directions by the rear block 66 and the clamping plate 67 and is in contact with the side surfaces 66e and 66f. That is, the end portion 61b is sandwiched between the side surfaces 66e and 66f in the vertical direction. Accordingly, since the movement of the end portion 61b in the vertical direction is regulated, the end portion 61b can be suppressed from tilting in the vertical direction, and the shaft 61a can be suppressed from tilting in the vertical direction. As a result, damage to the panel can be suppressed.

As described above, the end portion 61b is clamped in the left and right directions by the rear block 66 and the clamping plate 67 and is in contact with the bottom surface 66i. According to this configuration, the force with which the rear block 66 presses the end portion 61b in the left and right directions acts from the bottom surface 66i to the end portion 61b with almost no disassembly. For this reason, the maximum static friction force in the vertical direction acting from the bottom surface 66i to the end portion 61b increases, and thus the end portion 61b is suppressed from moving in the vertical direction. Therefore, the end portion 61b can be suppressed from being inclined in the vertical direction, and the shaft 61a can be suppressed from being inclined in the vertical direction. As a result, damage to the panel can be suppressed.

For example, when the end portion 61b is clamped in the left and right directions by the rear block 66 and the clamping plate 67 and the rear block 66 and the clamping plate 67 are in contact in the left and right directions, the rear The block 66 and the clamping plate 67 cannot be brought closer together in the left and right directions. In this case, the clamping force of the rear block 66 and the clamping plate 67 may not sufficiently act on the end portion 61b. On the other hand, in the panel storage container 1, the rear block 66 and the clamping plate 67 are separated from each other, so that the rear block 66 and the clamping plate 67 do not interfere in the left and right directions, and the end portion 61b Sufficient gripping force can be applied.

The end portion 61b is clamped in the left and right directions by the rear block 66 and the clamping plate 67, and the convex portion 66j is accommodated in the concave portion 61d. For this reason, even if a force in the front-back direction is applied to the shaft 61a, the convex portion 66j interferes with the concave portion 61d, thereby restricting the movement of the shaft 61a in the front-back direction. Accordingly, the possibility of the shaft 61a falling off from the support 26b can be reduced.

The shaft 61a and the main body portions 66a and 67a are made of a conductive material. The main body parts 66a and 67a are electrically connected to the ground of the external device through a positioning part provided on the bottom surface of the container main body 2. For example, when the shaft 61a is directly fixed to the main body portions 66a and 67a without passing through the conductive members 66c and 67c, and the panel stored in the panel storage container is charged, the panel and the shaft come into contact. When doing so, there is a risk that electrostatic discharge (ESD) may occur. On the other hand, if the shaft 61a and the main body portions 66a and 67a are made of a material with low conductivity in order to suppress the occurrence of electrostatic discharge, there is a risk that the panel may not be electrostatic.

In contrast, in the panel storage container 1, the end portion 61b is accommodated in the groove 66d provided in the conductive member 66c and the groove 67d provided in the conductive member 67c, and is connected to the rear block 66. and clamping plate 67 in the left and right directions. That is, the shaft 61a is fixed to the main body portions 66a and 67a through the conductive members 66c and 67c, respectively. Therefore, compared to a configuration in which the shaft 61a is directly fixed to the main body portions 66a and 67a without passing through the conductive member 66c and the conductive member 67c, the The resistance value of the path leading to section 67a increases. As a result, the occurrence of electrostatic discharge when a charged panel is placed on the shaft 61a can be suppressed. On the other hand, since the conductive member 66c and the conductive member 67c have conductivity, the order of the shaft 61a, the conductive member 66c, and the main body portion 66a from the panel placed on the shaft 61a, or the shaft Current can flow through (61a), the conductive member 67c, and the main body portion 67a in that order. Therefore, the panel can be eliminated. From the above, it becomes possible to eliminate static electricity from the panel while suppressing the occurrence of electrostatic discharge.

Additionally, the panel storage container according to the present disclosure is not limited to the above embodiment.

In the above embodiment, the rear block 66 including the conductive member 66c included the convex portion 66j, but the clamping plate 67 including the conductive member 67c had the groove 67d. It may also include a convex portion that protrudes from the inner peripheral surface in a direction intersecting the front-to-back direction.

The shape of the conductive member 66c is not limited to that of the above embodiment. With reference to FIGS. 6A to 6C , a modified example of the conductive member 66c (support 26b) will be described.

(First modification)

Figure 6(a) is a diagram showing a first modified example of a strut. The strut 26b according to the first modification is mainly different from the strut 26b according to the above embodiment in the shape of the inner peripheral surface of the groove 66d.

As shown in (a) of FIG. 6, in the strut 26b according to the first modification, the groove 66d has a U-shape that is different from the groove 66d according to the above embodiment when viewed from the front-back direction. It has a shape. Specifically, the inner peripheral surface of the groove 66d includes a side surface 66n, a side surface 66p, an inclined surface 66k, and an inclined surface 66m. The side surface 66n and the side surface 66p face each other in the vertical direction. The side surfaces 66n and 66p are substantially parallel to each other and are substantially perpendicular to the vertical direction. The separation distance between the side surfaces 66n and the side surfaces 66p in the vertical direction is larger than the length (diameter) of the end portion 61b in the vertical direction. The inclined surface 66k and the inclined surface 66m are inclined so as to move away from each other in the vertical direction as they approach the clamping plate 67.

The side surface 66n, the inclined surface 66k, the inclined surface 66m, and the side surface 66p are connected in that order. The end portion 61b, while clamped in the left and right directions by the rear block 66 and the clamping plate 67, is in contact with the inclined surface 66k and the inclined surface 66m, and has side surfaces 66n and 66p. is not in contact with

In the panel storage container including the support 26b according to the first modification, the same structure as the panel storage container 1 according to the above embodiment is the same as that of the panel storage container 1 according to the above embodiment. The effect appears. In addition, in the panel storage container including the support 26b according to the first modification, the separation distance between the side surfaces 66n and the side surfaces 66p in the vertical direction is larger than the diameter of the end portion 61b. For this reason, the end portion 61b can be easily accommodated in the groove 66d.

The end portion 61b is clamped in the left and right directions by the rear block 66 and the clamping plate 67, and is in contact with the inclined surface 66k and the inclined surface 66m. In this configuration as well, as with the inclined surfaces 66g and 66h of the panel storage container 1, the movement of the end portion 61b in the vertical direction is regulated, so that the end portion 61b can be suppressed from tilting in the vertical direction. This can prevent the shaft 61a from tilting in the vertical direction. As a result, damage to the panel can be suppressed.

(Second Modification)

Figure 6(b) is a diagram showing a second modified example of the strut. The strut 26b according to the second modification is mainly different from the strut 26b according to the above embodiment in the shape of the inner peripheral surface of the groove 66d.

As shown in FIG. 6(b), in the strut 26b according to the second modification, the groove 66d has an arc-shaped shape along the outer peripheral surface of the end portion 61b when viewed from the front-back direction. In other words, the inner peripheral surface of the groove 66d is such that the side surface 66e, the inclined surface 66g, the bottom surface 66i, the inclined surface 66h, and the side surface 66f of the groove 66d in the above embodiment are arc-shaped. It is composed of things that are connected. The radius of the inner peripheral surface of the groove 66d is substantially the same as the radius of the end portion 61b. The end portion 61b is clamped in the left and right directions by the rear block 66 and the clamping plate 67, and is in contact with the entire inner peripheral surface of the groove 66d.

In the panel storage container including the support 26b according to the second modification, the same structure as the panel storage container 1 according to the above embodiment is the same as that of the panel storage container 1 according to the above embodiment. The effect appears. In addition, in the panel storage container including the support 26b according to the second modification, the end portion 61b is clamped in the left and right directions by the rear block 66 and the clamping plate 67, and has a groove ( It is in contact over the entire inner peripheral surface of 66d). For this reason, almost no gap occurs between the inner peripheral surface of the groove 66d and the outer peripheral surface of the end portion 61b. Thereby, the end portion 61b can be further suppressed from being inclined in the vertical direction, and the shaft 61a can be further suppressed from being inclined in the vertical direction. As a result, damage to the panel can be suppressed.

(Third modified example)

Figure 6(c) is a diagram showing a third modified example of the support column. The strut 26b according to the third modification is mainly different from the strut 26b according to the above embodiment in the shape of the inner peripheral surface of the groove 66d.

As shown in FIG. 6(c), in the strut 26b according to the third modification, the groove 66d has an arc-shaped shape when viewed from the front-back direction. The radius of the inner peripheral surface of the groove 66d is larger than the radius of the end portion 61b. The inner peripheral surface of the groove 66d includes a bottom portion 66r. The bottom portion 66r is furthest from the clamping plate 67 in the left and right directions among the inner peripheral surfaces of the grooves 66d. The end portion 61b is clamped in the left and right directions by the rear block 66 and the clamping plate 67 and is in contact with the bottom portion 66r.

In the panel storage container including the support 26b according to the third modification, the same structure as the panel storage container 1 according to the above embodiment is the same as that of the panel storage container 1 according to the above embodiment. The effect appears. In addition, in the panel storage container including the support 26b according to the third modification, the radius of the inner peripheral surface of the groove 66d is larger than the radius of the end portion 61b, so that the opening of the groove 66d in the vertical direction The length is larger than the diameter of the end portion 61b. Therefore, the end portion 61b can be easily accommodated in the groove 66d.

(Fourth Modification)

The rear block 66 does not need to be provided with the conductive member 66c, and the clamping plate 67 does not need to be provided with the conductive member 67c. With reference to Fig. 7, a fourth modification of the support post 26b will be described. Fig. 7 is a diagram showing a fourth modification of the strut.

As shown in FIG. 7, in the prop 26b according to the fourth modification, the rear block 66 does not have a conductive member 66c, and the clamping plate 67 has a conductive member 67c. that the groove 66d is provided in the body portion 66a of the rear block 66 instead of the concave portion 66b, and that the groove 67d is provided in the clamping plate 67 instead of the concave portion 67b. ) is mainly different from the support 26b according to the above embodiment in that it is provided in the main body portion 67a.

In the support 26b according to the fourth modification, the shape of the inner peripheral surface of the groove 66d provided in the rear block 66 is the groove of the above embodiment, the first modification, the second modification, and the third modification. Any of the inner peripheral surfaces of (66d) may be adopted. Here, as the shape of the inner peripheral surface of the groove 66d, the shape of the inner peripheral surface of the groove 66d of the second modification example is used. The rear block 66 includes a convex portion 66j provided on the inner peripheral surface of the groove 66d. The shape of the convex portion 66j is the same as that of the convex portion 66j according to the above embodiment. Instead of the rear block 66 including the convex portion 66j, the clamping plate 67 may include a convex portion that protrudes from the inner peripheral surface of the groove 67d in a direction intersecting the front-back direction.

Additionally, instead of the support column 26b having the conductive members 66c and 67c, the support portion 61 further includes an elastic body 61e. The elastic body 61e is a ring-shaped (for example, toroidal) member provided on the outer peripheral surface of the shaft 61a. The elastic body 61e is provided to suppress slippage of the panel and improve the positioning accuracy of the panel. Since the constituent materials and arrangement of the elastic body 61e are the same as those of the elastic body 62b, detailed description is omitted.

In the panel storage container including the support 26b according to the fourth modification, the same effect as that of the panel storage container 1 according to the above embodiment is achieved with respect to the structure common to the panel storage container 1 according to the above embodiment. appears. In addition, in the panel storage container including the support 26b according to the fourth modification, the groove 66d is provided in the main body portion 66a of the rear block 66, and the groove 67d is formed in the clamping plate 67. It is provided in the main body portion 67a. Therefore, the inner peripheral surface of the groove 66d and the inner peripheral surface of the groove 67d are made of a metal material. For this reason, even when the end portion 61b is made of a metal material, when the rear block 66 and the clamping plate 67 clamp the end portion 61b, the inner peripheral surface of the groove 66d and the groove 67d Deformation of the inner peripheral surface is suppressed. Therefore, since unevenness is unlikely to occur on the inner peripheral surface of the groove 66d and the inner peripheral surface of the groove 67d, when the rear block 66 and the clamping plate 67 clamp the end portion 61b, the end portion 61b It becomes easier to apply a uniform force to the entire thing. As a result, the end portion 61b can be suppressed from being inclined in the vertical direction, and damage to the panel can be suppressed.

1: Panel storage container
2: Container body
26b: landowner
60: panel support
61a: shaft
61b: end
61d: recess
66: Rear block (first member)
66a: main body (first main body)
66c: Conductive member (first conductive member)
66d: groove (first groove)
66e: side (first side)
66f: side (second side)
66g: slope (first slope)
66h: Slope (second slope)
66i: bottom surface
66j: Convex portion
67: Clamping plate (second member)
67a: main body (second main body)
67c: Conductive member (second conductive member)
67d: groove (second groove)

Claims (8)

a container body for storing a plurality of panels arranged in a first direction;
A panel supporter provided inside the container body and supporting the plurality of panels.
Equipped with
The panel support portion includes a shaft extending in a second direction intersecting the first direction for supporting one panel among the plurality of panels,
the shaft includes an end in the second direction,
The container body includes a support for fixing the shaft,
The support includes a first member and a second member sandwiching the end portion in a third direction crossing the first direction and the second direction,
The first member is provided with a first groove extending in the second direction and being recessed in a direction away from the second member in the third direction,
The second member is provided with a second groove extending in the second direction and being recessed in a direction away from the first member in the third direction,
The panel storage container wherein the shaft is fixed by having the end portion received in the first groove and the second groove, and the end portion being clamped in the third direction by the first member and the second member. According to paragraph 1,
The inner peripheral surface of the first groove includes a first inclined surface and a second inclined surface that are inclined away from each other in the first direction as they approach the second member in the third direction,
The panel storage container, wherein the end portion is clamped in the third direction by the first member and the second member and is in contact with the first inclined surface and the second inclined surface. According to claim 1 or 2,
The inner peripheral surface of the first groove includes a first side and a second side facing each other in the first direction,
The panel storage container, wherein the end portion is clamped in the third direction by the first member and the second member and is in contact with the first side surface and the second side surface. According to any one of claims 1 to 3,
The inner peripheral surface of the first groove includes a bottom portion furthest from the second member in the third direction,
The panel storage container, wherein the end portion is clamped in the third direction by the first member and the second member and is in contact with the bottom portion. According to any one of claims 1 to 4,
The first groove is a panel storage container having a shape along the end. According to any one of claims 1 to 5,
The panel storage container wherein the first member is spaced apart from the second member in a state in which the end portion is clamped by the first member and the second member in the third direction. According to any one of claims 1 to 6,
The first member includes a convex portion protruding from the inner peripheral surface of the first groove in a direction intersecting the second direction,
A panel storage container, wherein a concave portion in which the convex portion is accommodated is provided at the end portion. According to any one of claims 1 to 7,
The first member includes a first conductive member provided with the first groove, and a first body portion holding the first conductive member,
The second member includes a second conductive member provided with the second groove, and a second body portion holding the second conductive member,
The resistance value of the first conductive member is greater than the resistance value of the shaft and the resistance value of the first body portion,
A panel storage container wherein the resistance value of the second conductive member is greater than the resistance value of the shaft and the resistance value of the second body portion.