TWM644872U - panel storage container - Google Patents

Abstract

The utility model provides a panel storage container that can eliminate static electricity from a panel while suppressing the generation of electrostatic discharge. The panel storage container includes: a container body for storing a plurality of panels arranged in a first direction; and a panel support part disposed inside the container body to support the plurality of panels. The panel support part includes a main shaft and a conductive a sexual member, the main shaft is used to support one panel among the plurality of panels and extends along a second direction intersecting the first direction; the container body includes a support for fixing the main shaft; the main shaft includes two ends in the second direction The two ends are the first end and the second end. The conductive member is disposed at the first end to electrically connect the main shaft and the support. The resistance of the conductive member is greater than the resistance of the main shaft and the resistance of the support.

Description

Panel storage container

The new invention relates to a panel storage container.

In the manufacturing process of handling panels such as glass substrates for liquid crystal panels, when transferring rectangular panels from a manufacturing apparatus to manufacturing apparatuses in other steps and when temporarily storing panels, a panel storage container that accommodates a plurality of panels may be used. For example, Japanese Patent Application Laid-Open No. 2019-31297 describes a panel storage container that includes a container body, a storage panel, and a lid that can be opened and closed to cover an opening provided in the container body. A long support member (spindle) that supports the central lower surface of one panel is provided inside the panel storage container.

In the panel storage container described in Japanese Patent Application Laid-Open No. 2019-31297, the main shaft is fixed to the support column provided on the container body, and the main shaft and the support column are made of conductive material. The pillar is electrically connected to the ground of the external device via a positioning portion provided on the bottom surface of the container body. In this case, for example, if the panel stored in the panel storage container is charged, electrostatic discharge (ESD) may be generated when the panel comes into contact with the spindle. On the other hand, in order to suppress static If the main shaft and pillars are made of materials with low conductivity due to the generation of electric discharge, the panel may not be decharged.

This new creation provides a panel storage container that can eliminate static electricity from the panel while suppressing the generation of electrostatic discharge.

A panel storage container according to one aspect of the invention includes: a container body for storing a plurality of panels arranged in a first direction; and a panel support portion disposed inside the container body to support the plurality of panels. The panel support part includes a main shaft for supporting one panel among the plurality of panels and extending along a second direction intersecting the first direction, and a conductive member. The container body includes supports for fixing the main shaft. The main shaft includes two ends in the second direction, namely a first end and a second end. The conductive member is provided at the first end to electrically connect the main shaft and the pillar. The resistance value of the conductive member is larger than the resistance value of the main shaft and the resistance value of the support column.

In the panel storage container, the conductive member electrically connects the main shaft and the support column. The resistance value of the conductive member is larger than the resistance value of the main shaft and the resistance value of the support column. Therefore, compared with a structure in which the main shaft is directly connected to the support column, the resistance value of the path from the main shaft to the support column becomes larger. This can suppress the generation of electrostatic discharge when the panel is placed on the spindle. On the other hand, since the conductive member has conductivity, electricity can flow from the panel placed on the spindle in the order of the spindle, the conductive member, and the support column. Therefore, the panel can be decharged. According to the above, it is possible to eliminate static electricity from the panel while suppressing the generation of electrostatic discharge.

In some embodiments, the pillars may be provided with fitting holes equipped with conductive members. The first end may be fitted into the fitting hole via a conductive member. exist In this case, the main shaft is fixed to the support column in a state where the first end portion is fitted into the fitting hole via the conductive member. Therefore, the main shaft can be reliably fixed to the support column.

In some embodiments, the main shaft may include: a placing part for placing the panel; and a base part to support the placing part in the first direction. The placing part and the base part may extend along the second direction. The maximum length of the base portion in the third direction intersecting the first direction and the second direction may be greater than the maximum length of the placing portion in the third direction. The amount of deflection caused by the self-weight of the main shaft is directly proportional to the cross-sectional area of the main shaft and inversely proportional to the second moment of the cross-section of the main shaft. When the cross-section of the main axis expands in the horizontal direction, the increase in the second moment of the cross-section exceeds the increase in the cross-sectional area. Therefore, the amount of deflection caused by the main shaft's own weight can be reduced without expanding the main shaft in the vertical direction. As a result, the possibility of interference between the panel and the spindle can be reduced when the panel is loaded into the panel storage container or when the panel is moved out of the panel storage container.

In some embodiments, when viewed from the second direction, the maximum distance between the center of gravity of the shape defined by the outer circumferential surface of the conductive member and the outer circumferential surface is greater than the maximum distance between the center of gravity and the inner circumference of the shape defined by the inner circumferential surface of the fitting hole. The minimum distance between faces is large. The conductive member may include stopper portions that are in contact with both ends of the base portion in the third direction in the first direction. In this case, even when a force is applied around the axis of the conductive member, the portion of the conductive member having the maximum distance is caught on the inner peripheral surface of the fitting hole. This prevents the conductive member from rotating about the axis relative to the fitting hole. Furthermore, even if a force is applied around the axis of the spindle, the stopper portion of the conductive member is in contact with the base portion of the spindle in the first direction, thereby preventing the spindle from rotating relative to the conductive member around the axis of the spindle. Therefore, it is possible to prevent the spindle from rotating around the axis of the spindle relative to the fitting hole. Line rotation.

In some embodiments, the conductive member may be composed of resin material. In this case, a conductive member having a resistance value larger than the resistance value of the main shaft and the resistance value of the support can be easily realized.

In some embodiments, the panel support part may include: a fixing member for fixing the main shaft to the pillar; and a receiving member disposed between the pillar and the fixing member for mounting the fixing member to the pillar. The total resistance value of the resistance value of the fixing member and the resistance value of the receiving member may be equal to or higher than the resistance value of the conductive member. In this case, the path from the main shaft to the pillar includes a path from the main axis to the pillar through the conductive member, and a path from the main axis to the pillar through the fixing member and the receiving member in order. Since the total resistance value of the fixed member and the receiving member is greater than the resistance value of the conductive member, it is difficult for an electric current to flow in the path from the spindle through the fixed member and the receiving member to the support column. Therefore, electric current flows in a path from the main shaft to the support column through the conductive member, so that the conductivity between the main shaft and the support column can be adjusted through the conductive member. As a result, the generation of electrostatic discharge can be suppressed more reliably.

In some embodiments, the securing member may be composed of metallic materials. The receiving member may be made of insulating material. In this case, it is possible to easily realize the fixing member and the receiving member having a total resistance value equal to or higher than the resistance value of the conductive member.

According to this new invention, the panel can be de-charged while suppressing the generation of electrostatic discharge.

1: Panel storage container

2: Container body

2a: Open your mouth

3: Cover

20: Containment space

21:top plate

22: Bottom plate

23:Side wall

24:Back wall

25:Flange

25h: Keyhole

26:Frame

26a: Frame

26b, 26c: Pillars

26g: chimeric hole

26i: rear surface

26j: Front surface

26k:郃康

26m: connecting hole

27:pedestal part

28:Side panel

31: cover body

32: Locking mechanism

33:Keyhole

60: Panel support part

61, 62: Support part

61a, 62a: Spindle

61b: Conductive member

61c: end (first end)

61d: End (second end)

61e:Exposed part

61f: Embedded part

61g: Stopper

62b: Elastomer

62c, 62d: end

63, 64: Stopper

63a: blocking piece

65:Support

71: Loading part

72: Base part

80: Undertake components

81: Fixed components

81a:Head

81b: Shaft

G1, G2: center of gravity

L1, L2: maximum length (maximum width)

L3: Maximum distance

L4: minimum distance

X, Y, Z: direction

FIG. 1 is an exploded perspective view of the panel storage container according to one embodiment.

FIG. 2 is a cross-sectional view along line II-II of FIG. 1 .

FIG. 3 is an exploded perspective view of the support part and the support column shown in FIG. 2 .

FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 2 .

FIG. 5 is a cross-sectional view along line V-V of FIG. 2 .

FIG. 6 is a cross-sectional view along line VI-VI in FIG. 5 .

FIG. 7 is a cross-sectional view along line VII-VII of FIG. 5 .

Hereinafter, the implementation of the novel creation will be described in detail with reference to the accompanying drawings. In addition, in the description of the drawings, the same elements are denoted by the same symbols, and repeated descriptions are omitted. In each figure, an XYZ coordinate system is shown. The Y-axis direction is a direction that intersects (here, is orthogonal to) the X-axis direction and the Z-axis direction. The Z-axis direction is a direction that intersects (here, is orthogonal to) the X-axis direction and the Y-axis direction. 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", "upper", "lower", "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. FIG. 1 is an exploded perspective view of the panel storage container according to one embodiment. The panel shown in Figure 1 closes The storage container 1 is a container for storing a plurality of panels. The panel storage container 1 complies with Semiconductor Equipment and Materials International (SEMI) standards, for example. Examples of panels include glass substrates for liquid crystal panels and panels equipped with electronic components. The panel has a rectangular shape. Examples of panel sizes include 510mm×515mm and 600mm×600mm. The number of panels that can be stored in the panel storage container 1 is arbitrarily determined, and may be 6 panels, 12 panels, 16 panels, or 24 panels, for example.

The panel storage container 1 is used, for example, in a manufacturing device that manufactures electronic component assemblies. Electronic component assemblies are manufactured, for example, by the following steps: mounting a plurality 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; and sealing the sealed electronic components. Peel off the carrier panel in the form of a panel; and cut out the electronic components in the panel form separately. The panel storage container 1 is used to transfer panels between these steps.

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

The container body 2 is a rectangular parallelepiped-shaped container with an open front surface. In other words, the container body 2 is a front open box type container having the opening 2a provided on the front surface. The container body 2 accommodates a plurality of panels. Specifically, the container body 2 stores a plurality of panels in a state aligned in the vertical direction. The panel is removed from or inserted into the container body 2 via the opening 2a. Details of the container body 2 will be described later.

The lid 3 is a member for closing the opening 2 a of the container body 2 . The lid 3 airtightly closes the opening 2 a of the container body 2 via a sealing member such as a gasket. Cover 3 pack It is detachably mounted on the flange 25 defining the opening 2a. The cover 3 includes a cover body 31 and a locking mechanism 32 . The cover body 31 is the main body part of the cover body 3 . The cover body 31 is a rectangular plate material. The cover body 31 is made of metal materials such as aluminum and magnesium alloy. The cover body 31 may be made of thermoplastic resin such as polycarbonate resin. A keyhole 33 is provided on the front surface of the cover body 31 . A key (not shown) is inserted into the key hole 33 .

The locking mechanism 32 operates the key inserted into the key hole 33 to lock or unlock the cover 3 . The locking mechanism 32 includes a latch (not shown). With the cover 3 mounted on the flange 25, the cover 3 is locked by inserting the lock into the locking hole 25h provided in the flange 25 by operating the key. When the cover 3 is locked, the cover 3 is unlocked by pulling out the lock catch from the lock hole 25h by operating the key.

The container body 2 and the lid 3 may also be composed by combining a plurality of parts molded from a metal material or a resin material. Examples of the resin 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. As the resin contained in the molding material of the resin material, alloys of these can be used.

Conductive substances and various antistatic agents can also be added to these resins. The conductive material includes, for example, carbon fibers, carbon powder, carbon nanotubes, conductive polymers, and the like. As the antistatic agent, anionic, cationic, nonionic and other antistatic agents can be used. Benzotriazole series, salicylic acid series, cyanoacrylate series, etc. can also be added to these resins. Oxalic acid anilide-based and hindered amine-based UV absorbers. Glass fibers, carbon fibers, etc. that improve rigidity can also be selectively 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 base 27 , and a side plate 28 .

The top plate 21, the bottom plate 22, the side walls 23 and the back wall 24 are rectangular plates. The top plate 21 and the bottom plate 22 face each other in the up-down direction and are arranged substantially in parallel. The pair of side walls 23 face each other in the left-right direction and are arranged substantially in parallel. The back wall 24 connects the rear ends of the top plate 21 and the bottom plate 22 and connects the rear ends of the pair of side walls 23 . The storage space 20 is defined by a top plate 21, a bottom plate 22, a pair of side walls 23, and a back 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. The back wall 24 is made of, for example, a transparent resin material that allows the storage space 20 to be visually viewed from the outside of the container body 2 . A part 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 ends of the pair of side walls 23 . The opening 2 a is delimited by a flange 25 . The flange 25 is made of, for example, the above-mentioned resin material or metal material such as aluminum and stainless steel. The upper frame part and the lower frame part of the flange 25 are respectively provided with two upper lock holes 25h spaced apart in the left-right direction. The locking hole 25h of the upper frame and the locking hole of the lower frame 25h are provided at positions facing each other in the up-down direction.

The frame 26 is used to fix the top plate 21 , the bottom plate 22 , a pair of side walls 23 and the back wall 24 . The frame 26 is made of metal materials such as aluminum and stainless steel. The frame 26 is provided on the front surface of the back wall 24 . The frame 26 has a frame part 26a (refer to FIG. 2), a support|pillar 26b (refer to FIG. 2), and a pair of support|pillar 26c (refer to FIG. 2). The frame part 26a is a rectangular member and is provided along the periphery of the back wall 24.

The pillar 26b and the pair of pillars 26c are columnar members extending in the up-down direction. One of the pillars 26c, the pillar 26b and the other pillar 26c are arranged in this order in the left-right direction and are arranged substantially parallel to each other. The pillar 26b and the pair of pillars 26c extend from the upper frame part to the lower frame part of the frame part 26a. The pillar 26b is provided at the center of the frame 26 in the left-right direction. A pair of support pillars 26c are provided near both ends of the frame 26 in the left-right direction.

The support column 26b is a member for fixing the main shaft 61a described later. The support column 26b is provided with a plurality of fitting holes 26g for mounting the spindle 61a (see Fig. 3). These fitting holes 26g are recessed toward the rear from the front surface 26j of the pillar 26b. The support column 26c is a member for fixing the main shaft 62a described later. The support column 26c is provided with a plurality of fitting holes (not shown) for mounting the spindle 62a. These fitting holes are recessed toward the rear from the front surface of the pillar 26c. The resistance value of the pillar 26b is, for example, 1×10 ^-1 Ω or more and 1×10 ¹ Ω or less.

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

The side plate 28 is a member for attaching the support body 65 described later. The side plate 28 is a plate-shaped member extending in the up-down direction. The side plate 28 is made of a metal material such as aluminum or stainless steel. 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 aligned in the front-rear 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-rear direction, and the other side plate 28 is provided near the front end of the side wall 23 in the front-rear direction.

A cover member for preventing particles (particles) from intruding into the storage space 20 is provided at a corner of the container body 2 .

Next, the structure within the storage space 20 will be described with reference to FIG. 2 . FIG. 2 is a cross-sectional view along line II-II of FIG. 1 . As shown in FIG. 2 , the panel storage container 1 further includes a panel support part 60 . The panel support part 60 is a part for supporting a plurality of panels. The panel support part 60 is provided inside the container body 2 (storage space 20). The panel support part 60 includes a plurality of support parts 61 , a plurality of support parts 62 , a plurality of stoppers 63 and a plurality of stoppers 64 .

The numbers of the support parts 61 , 62 , stoppers 63 and 64 are changed according to the number of panels that can be stored in the panel storage container 1 . In this embodiment, the panel support part 60 includes one support part 61, two support parts 62, two stoppers 63 and two stoppers 64 for each panel. In other words, one support part 61 , two support parts 62 , two stoppers 63 and two stoppers 64 form a storage section for accommodating one panel.

The support portion 61 is a portion for supporting the center portion of the panel in the left-right direction. The support part 61 includes a main shaft 61a and a conductive member 61b. The main shaft 61a is a member extending in the front-rear direction. The main shaft 61a is used to support a panel. The main shaft 61a has an end 61c (first end; see FIG. 3 ) and an end 61d (a second end; see FIG. 3 ), which are both ends in the extension direction (the front-rear direction) of the main shaft 61a. The main shaft 61a is made of a material with high bending rigidity, for example. Examples of the constituent materials of the spindle 61a include metals such as stainless steel and aluminum, and carbon fiber reinforced plastic. The resistance value of the spindle 61a is, for example, 1×10 ^-1 Ω or more and 1×10 ¹ Ω or less. The shape of the main shaft 61a and the manner in which the main shaft 61a is fixed to the support column 26b will be described below.

The conductive member 61b is a member that electrically connects the main shaft 61a and the support column 26b. The conductive member 61b has a cylindrical shape with an open front end and extending in the front-rear direction. The conductive member 61b is provided at the end portion 61c and surrounds the end portion 61c around the axis of the main shaft 61a. Specifically, the conductive member 61b is fitted into the fitting hole 26g of the support column 26b, and the end portion 61c is fitted into the internal space of the conductive member 61b, thereby holding the end portion 61c. The conductive member 61b is made of, for example, a conductive resin material. This resin material contains conductive substances such as carbon. The resistance value of the conductive member 61b is larger than the resistance value of the spindle 61a and the resistance value of the support column 26b. The resistance value of the conductive member 61b is, for example, 1×10 ⁴ Ω or more and 1×10 ⁹ Ω or less.

The support portion 62 is a portion for supporting both end portions of the panel in the left-right direction. The support part 62 has a main shaft 62a, a plurality of elastic bodies 62b, and a plurality of support bodies 65. The main shaft 62a is a columnar (for example, cylindrical) member extending in the front-rear direction. Spindle 62a is used to support a panel. The main shaft 62a has an end portion 62c and an end portion 62d, which are both ends in the extending direction (the front-rear direction) of the main shaft 62a. The end 62c of the main shaft 62a is embedded in the support The fitting hole of the pillar 26c is fixed to the pillar 26c by a screw.

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

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

The support body 65 is a member that holds (supports) the main shaft 62 a and supports the end portions of the panel in the left-right direction. An insertion hole penetrating the support body 65 in the front-rear direction is provided at the front end portion of the support body 65, and the main shaft 62a is inserted into the insertion hole. The support body 65 has an inclined surface that is inclined downward from the base end toward the front end of the support body 65 .

The base end portion of the support body 65 is in contact with the inner surface of the side wall 23. Pins (not shown) position the side plate 28 , the side wall 23 , and the support body 65 . 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 threaded hole provided in the base end portion of the support body 65 . Thereby, the support body 65 is fixed to the side plate 28 with the side wall 23 sandwiched between the support body 65 and the side plate 28 .

The stopper 63 is a member that prevents the panel from flying 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 main shaft 62a. For example, the stopper 63 is installed on the main shaft 62a by inserting the end portion 62d of the main shaft 62a into a mounting hole provided in the stopper 63. The stopper 63 has a disc-shaped locking piece 63a having an outer diameter larger than the outer diameter of the elastic body 62b. The locking piece 63a has an inclined surface that is inclined rearward 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 main shaft 62a. The stopper 64 has a block shape. The stopper 64 is provided with an insertion hole through which the spindle 62a is inserted in the front-rear direction. In a state where the main shaft 62a is inserted into the insertion hole of the stopper 64, the rear surface of the stopper 64 comes into contact with the front surface of the pillar 26c, and the stopper 64 is fixed to the pillar 26c by a screw. The stopper 64 has an inclined surface that inclines forward from the upper surface toward the downward direction.

The placement position of the placement panel is defined by the stoppers 63 , 64 and the support 65 . Specifically, the mounting position of the panel in the front-rear direction is defined by the stoppers 63 and 64 . It is defined by four supports 65 provided on the left and right The placement position of the panel in the left-right direction. For example, the panel is moved into the storage space 20 by a robot, and the panel is placed in any storage section. 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 rests on the inclined surface of the locking piece 63a of the stopper 63, the panel is guided to the placement position along the inclined surface by its own weight. Similarly, even if the rear end of the panel rests on the inclined surface of the stopper 64, the panel is guided to the placement position along the inclined surface due to its own weight. Similarly, even if the side end of the panel rests on the inclined surface of the support body 65, the panel is guided to the placement position along the inclined surface due to its own weight.

Next, the shape of the main shaft 61a will be described with reference to FIGS. 3 and 4 . FIG. 3 is an exploded perspective view of the support part and the support column shown in FIG. 2 . FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 2 .

As shown in FIG. 3 , the main shaft 61a has an end portion 61c and an exposed portion 61e. The end portion 61c has, for example, a cylindrical shape extending in the front-rear direction. As described above, since the end portion 61c is fitted into the fitting hole 26g of the pillar 26b, it is not exposed from the pillar 26b. The exposed portion 61e is a portion of the main shaft 61a except the end portion 61c, and is a portion exposed from the support column 26b. The exposed portion 61e is connected to 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.

Specifically, as shown in FIG. 4 , the exposed portion 61 e includes a placement portion 71 and a base portion 72 . The placement portion 71 and the base portion 72 extend entirely in the front-rear direction of the exposed portion 61e. The placement portion 71 is a member on which one panel supported by the main shaft 61a is placed. The placement portion 71 has a lower surface in contact with the base portion 72 , and a panel is placed on the placement portion 71 on the side opposite to the lower surface in the vertical direction. load The placement portion 71 has a columnar shape extending in the front-rear direction. In the present embodiment, the placing portion 71 has an oval shape in which an arcuate shape is omitted from a circle when viewed from the front-rear direction. The placement portion 71 may have a cylindrical shape extending in the front-rear direction. The placement portion 71 has a maximum length (maximum width) L1 in the left-right direction.

The base portion 72 is a member that supports the placement portion 71 in the up-down direction. The base portion 72 is provided to reduce deflection of the main shaft 61a due to its own weight. The base portion 72 has a columnar shape extending in the front-rear direction. In this embodiment, the base portion 72 has a hexagonal shape when viewed from the front-to-back direction. The hexagonal shape is a combination of a rectangle having long sides in the left-right direction and a trapezoid protruding upward from the upper side of the rectangle. . The upper surface of the base portion 72 is provided with a groove into which the placing portion 71 fits. The lower corners of the base portion 72 are chamfered. The base portion 72 has a maximum length (maximum width) L2 in the left-right direction. The maximum width L2 of the base portion 72 is larger than the maximum width L1 of the placement portion 71 . The length of the base portion 72 in the left-right direction has the maximum width L2 at the lower end of the base portion 72 , and decreases upward from the lower end of the base portion 72 .

In this embodiment, the mounting part 71 is fixed to the base part 72 with a screw, but it may also be fixed by adhesion or welding. Alternatively, the placement portion 71 and the base portion 72 may be integrally configured as the exposed portion 61e.

Next, a mode in which the main shaft 61a is fixed to the support column 26b will be described with reference to FIGS. 3 and 5 . FIG. 5 is a cross-sectional view along line V-V of FIG. 2 .

As shown in FIG. 5 , the conductive member 61b is arranged in the fitting hole 26g of the support column 26b. Specifically, the conductive member 61b is fitted into the fitting hole 26g so that the opening is located in the front. The conductive member 61b includes an embedded portion 61f and a stopper portion 61g.

The fitting part 61f is a part fitted into the fitting hole 26g. In this embodiment, the fitting portion 61f has a cylindrical shape with one end open. The other end of the fitting portion 61f is provided with a through hole through which the shaft portion 81b of the fixing member 81 described later can be inserted. The outer peripheral surface of the fitting portion 61f has a shape in which the corners of a rectangle are rounded when viewed from the front-rear direction.

The stopper portion 61g is a portion that functions as a rotation stopper for the main shaft 61a. The stopper portion 61g has an arc shape when viewed from the front-rear direction and extends in the front-rear direction. The stopper portion 61g is connected to the fitting portion 61f in the front-rear direction, and protrudes forward from the front surface 26j of the pillar 26b in a state where the conductive member 61b is fitted in the fitting hole 26g. The stopper portion 61g is in vertical contact with both left and right end portions of the base portion 72 .

The support part 61 also includes a receiving member 80 and a fixing member 81 . The fixing member 81 is a member for fixing the main shaft 61a to the support column 26b. As the fixing member 81, for example, a bolt can be used. The fixing member 81 includes a head portion 81a and a shaft portion 81b. The fixing member 81 is made of a metal material, for example. Examples of the material of the fixing member 81 include stainless steel and aluminum. The resistance value of the fixing member 81 is, for example, 1×10 ^-1 Ω or more and 1×10 ¹ Ω or less.

The receiving member 80 is provided between the pillar 26b and the fixing member 81, and is used to attach the fixing member 81 to the pillar 26b. In this embodiment, the receiving member 80 has a cup-like shape and accommodates the head portion 81 a of the fixing member 81 . The bottom plate of the receiving member 80 is provided with a through hole through which the shaft portion 81 b of the fixing member 81 can be inserted. The receiving member 80 is arranged in the hole 26k provided in the rear surface 26i of the pillar 26b. The hole 26k is a hole for accommodating the head part 81a of the fixing member 81, and is recessed toward the front from the rear surface 26i of the support|pillar 26b. The hole 26k and the fitting hole 26g are connected in the front-rear direction through the communication hole 26m. The inner diameter of the communication hole 26m is larger than the outer diameter of the shaft portion 81b of the fixing member 81. The receiving member 80 is made of an insulating material, for example. Examples of the constituent material of the receiving member 80 include polyacetal and polycarbonate. The resistance value of the receiving member 80 is, for example, 1×10 ¹² Ω or more and 1×10 ¹⁴ Ω or less. The total resistance value of the resistance value of the receiving member 80 and the resistance value of the fixing member 81 is equal to or greater than the resistance value of the conductive member 61b.

The conductive member 61b is fitted into the fitting hole 26g with its opening facing forward, and the end portion 61c is inserted into the internal space of the fitting portion 61f, whereby the end portion 61c is fitted into the conductive member 61b. That is, the end portion 61c is fitted into the fitting hole 26g via the conductive member 61b. Then, after the receiving member 80 is fitted into the bore 26k, the shaft portion 81b of the fixing member 81 is inserted into the through hole of the receiving member 80, the communication hole 26m, and the through hole of the fitting portion 61f. The portion 81b is screwed into a threaded hole provided on the rear surface of the end portion 61c. At this time, the head 81 a of the fixing member 81 is accommodated in the receiving member 80 . Thereby, the main shaft 61a is fixed to the support|pillar 26b. Moreover, since the outer diameter of the shaft part 81b is smaller than the inner diameter of the communication hole 26m, when the main shaft 61a is fixed to the support|pillar 26b, the shaft part 81b does not contact the support|pillar 26b.

Next, the anti-rotation structure will be described with reference to FIGS. 6 and 7 . FIG. 6 is a cross-sectional view along line VI-VI in FIG. 5 . FIG. 7 is a cross-sectional view along line VII-VII of FIG. 5 .

As shown in FIG. 6 , the maximum distance L3 between the center of gravity G1 of the shape defined by the outer circumferential surface of the conductive member 61 b and the outer circumferential surface of the conductive member 61 b is larger than the distance L3 between the center of gravity G1 and the outer circumferential surface of the conductive member 61 b by the fitting hole 26 g. The minimum distance L4 between the center of gravity G2 of the shape defined by the inner peripheral surface and the inner peripheral surface of the fitting hole 26g is large. In this embodiment, when viewed from the front-to-back direction, the position of the center of gravity G1 coincides with the position of the center of gravity G2. The specific shape of the shape defined by the outer peripheral surface of the conductive member 61b is not limited. The shape defined by the outer peripheral surface of the conductive member 61b may be, for example, a polygonal shape or a flat shape.

As shown in FIG. 7 , the stopper portion 61 g of the conductive member 61 b is in vertical contact with both ends of the base portion 72 in the left-right direction. The upper surfaces of the both ends of the base portion 72 are in contact with the stoppers 61g in the vertical direction. The stopper portion 61g is also in contact with the placing portion 71 in the up-down direction. Specifically, the inner peripheral surface of the stopper portion 61g is in contact with the placement portion 71 in the up-down direction. Therefore, the stopper portion 61g is in contact with the both ends of the base portion 72 in the vertical direction to cover the placement portion 71 and the base portion 72 from above.

In this structure, when a force is applied around the axis of the conductive member 61 b, the portion of the conductive member 61 b that has the maximum distance L3 from the center of gravity G1 is caught on the inner peripheral surface of the fitting hole 26 g. Accordingly, even when a force is applied about the axis, the conductive member 61 b can be prevented from rotating about the axis relative to the fitting hole 26 g. That is, the rotation of the conductive member 61b about the axis is restricted relative to the support column 26b. Furthermore, even when a force is applied around the axis of the main shaft 61a, the stopper portion 61g and both left and right end portions of the base portion 72 are in vertical contact, thereby preventing the main shaft 61a from being moved relative to the conductive member 61b. Rotate around said axis. As described above, since the conductive member 61b can be prevented from rotating about the axis with respect to the fitting hole 26g (the pillar 26b), the main shaft 61a can be prevented from rotating around the axis even with respect to the pillar 26b. axis rotation.

As described above, in the panel storage container 1, the end portion 61c of the main shaft 61a is fitted into the fitting hole 26g via the conductive member 61b. The conductive member 61b electrically connects the main shaft 61a and the support column 26b. The resistance value of the conductive member 61b is larger than the resistance value of the spindle 61a and the resistance value of the support column 26b. Therefore, compared with a structure in which the main shaft 61a is directly connected to the support column 26b without passing through the conductive member 61b, the resistance value of the path from the main shaft 61a to the support column 26b becomes larger. This can suppress the generation of electrostatic discharge when the panel is placed on the spindle 61a. On the other hand, since the conductive member 61b has conductivity, electricity can flow from the panel placed on the main shaft 61a in the order of the main shaft 61a, the conductive member 61b, and the support column 26b. Therefore, the panel can be decharged. According to the above, by interposing the conductive member 61b having a resistance value larger than the resistance value of the main shaft 61a and the resistance value of the support pillar 26b between the main shaft 61a and the support pillar 26b, it is possible to suppress the generation of electrostatic discharge and perform maintenance on the panel. Remove electricity.

In the panel storage container 1, the support|pillar 26b is provided with the fitting hole 26g in which the conductive member 61b is arrange|positioned. The end portion 61c is fitted into the fitting hole 26g via the conductive member 61b. Specifically, the end portion 61c is inserted into the internal space of the fitting portion 61f of the conductive member 61b to fit into the fitting hole 26g. According to this structure, the main shaft 61a is fixed to the support|pillar 26b with the end part 61c being fitted in the fitting hole 26g via the conductive member 61b. Therefore, the main shaft 61a can be reliably fixed to the support column 26b.

Generally speaking, the amount of deflection caused by the self-weight of the main shaft is directly proportional to the cross-sectional area of the main shaft and inversely proportional to the second moment of the cross-section of the main shaft. The section along the main axis is along the horizontal direction In the case of expansion, the increase in the second moment of the section exceeds the increase in the section area. In the panel storage container 1 , the maximum width L2 of the base portion 72 is larger than the maximum width L1 of the placement portion 71 . Therefore, the deflection amount caused by the own weight of the main shaft 61a can be reduced without expanding the main shaft 61a in the vertical direction. As a result, the possibility of interference between the panel and the spindle 61 a can be reduced when the panel is loaded into the panel storage container 1 or when the panel is unloaded from the panel storage container 1 .

The conductive member 61b is in vertical contact with both ends of the base portion 72 in the left and right directions. Therefore, even if a force is applied around the axis of the main shaft 61a, the stopper portion 61g of the conductive member 61b is in contact with the base portion 72 of the main shaft 61a, thereby preventing the main shaft 61a from rotating about the axis relative to the conductive member 61b. Furthermore, when viewed from the front-to-back direction, the maximum distance L3 between the center of gravity G1 of the shape defined by the outer peripheral surface of the conductive member 61 b and the outer peripheral surface of the conductive member 61 b is longer than that of the shape defined by the inner peripheral surface of the fitting hole 26 g. The minimum distance L4 between the center of gravity G2 and the inner peripheral surface of the fitting hole 26g is large. According to the above structure, when a force is applied around the axis of the conductive member 61 b, the portion of the conductive member 61 b that has the maximum distance L3 from the center of gravity G1 is caught on the inner peripheral surface of the fitting hole 26 g. This prevents the conductive member 61b from rotating about the axis relative to the fitting hole 26g. That is, the conductive member 61b can be prevented from rotating about the axis relative to the support column 26b. According to the above, it is possible to prevent the main shaft 61a from rotating about the axis of the main shaft 61a relative to the fitting hole 26g (the pillar 26b).

The conductive member 61b may be made of a resin material. In this case, the conductive member 61 b having a resistance value larger than the resistance value of the main shaft 61 a and the resistance value of the support column 26 b can be easily realized.

In the panel storage container 1, the path from the main shaft 61a to the pillar 26b includes the path from the main axis 61a to the pillar 26b through the conductive member 61b, and the path from the main axis 61a to the pillar 26b through the fixing member 81 and the receiving member 80 in sequence. Since the total resistance value of the resistance value of the fixed member 81 and the resistance value of the receiving member 80 is larger than the resistance value of the conductive member 61 b, it is difficult for the current to flow from the main shaft 61 a through the fixing member 81 and the receiving member 80 in order to reach the support column 26 b. flow. Furthermore, when the main shaft 61a is fixed to the support column 26b, the shaft portion 81b of the fixing member 81 is not in contact with the support column 26b, so it is difficult for an electric current to flow into the support column 26b via the shaft portion 81b. Therefore, the current mainly flows in the path from the main shaft 61a through the conductive member 61b to the support column 26b, so the conductivity between the main shaft 61a and the support column 26b can be adjusted through the conductive member 61b. As a result, the generation of electrostatic discharge can be suppressed more reliably.

The fixing member 81 may be made of metal material, and the receiving member 80 may be made of insulating material. In this case, a structure can be easily realized in which the total resistance value of the resistance value of the fixing member 81 and the resistance value of the receiving member 80 is larger than the resistance value of the conductive member 61 b.

In addition, the panel storage container created by the present invention is not limited to the above-described embodiment.

The fitting hole 26g does not need to be provided in the pillar 26b. In this case, the main shaft 61a is fixed to the support column 26b with the conductive member 61b interposed between the main shaft 61a and the support column 26b in the front-rear direction. For example, the conductive member 61b is joined to the front surface 26j of the support column 26b, and the end portion 61c of the main shaft 61a is joined to the conductive member 61b. That is, the main shaft 61a is fixed to the support|pillar 26b via the conductive member 61b.

In the embodiment, the base portion 72 has a polygonal column shape extending in the front-rear direction, but the shape of the base portion 72 is not limited to the above shape. The base portion 72 is provided to reduce the deflection under its own weight of the main shaft 61 a. Therefore, the base portion 72 may have a shape that can reduce the deflection under its own weight. For example, the shape of the base portion 72 may be a plate shape extending in the front-rear direction.

In the above-mentioned embodiment, the length in the left-right direction of the base portion 72 becomes smaller as it moves upward from the lower end of the base portion 72 . However, the length in the left-right direction of the base portion 72 is not limited to the above-mentioned form. The length of the base portion 72 in the left-right direction may be continuously reduced as it moves upward from the lower end of the base portion 72 , or may be reduced in a stepwise manner.

The main shaft 61a does not need to include the base part 72. In this case, the main shaft 61a (mounting portion 71) may be a cylindrical member extending in the front-rear direction. When the main shaft 61a is cylindrical, the main shaft 61a can rotate around the axis, so the conductive member 61b does not need to include the stopper 61g. In this case, the outer peripheral surface of the conductive member 61b and the inner peripheral surface of the fitting hole 26g may be circular when viewed from the front-rear direction.

The constituent material of the conductive member 61b is not limited to the resin material. The conductive member 61b only needs to be configured such that the resistance value of the conductive member 61b is larger than the resistance value of the main shaft 61a and the resistance value of the support column 26b.

The combination of the structural material of the fixed member 81 and the structural material of the receiving member 80 can be suitable within the range that satisfies the condition that the total resistance value of the resistance value of the fixed member 81 and the resistance value of the receiving member 80 is equal to or higher than the resistance value of the conductive member 61 b change Even. For example, the fixing member 81 may be made of insulating material, and the receiving member 80 may be made of metal material. The fixing member 81 may be made of a metal material, and the receiving member 80 may be made of the same material as the conductive member 61b.

The method of connecting each member of the container body 2 may also be different from the above-described embodiment. In the above embodiment, the container body 2 is configured by combining a plurality of parts, but it may be an integrally molded product.

In the embodiment, the support part 62 includes a main shaft 62a, a plurality of elastic bodies 62b, and a plurality of support bodies 65. Instead of the above structure, the support portion 62 may have a plate-shaped support body extending in the front-rear direction for supporting the end portions of the panel in the left-right direction.

(Note)

(Item 1) A panel storage container, including: 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. a panel, the panel support part includes a main shaft and a conductive member, the main shaft is used to support one panel among the plurality of panels and extends along a second direction intersecting the first direction, and the container body includes A support for fixing the main shaft, the main shaft includes two ends in the second direction, that is, a first end and a second end, and the conductive member is provided at the first end, electrically connecting the spindle and the pillar, The electrical resistance value of the conductive member is greater than the resistance value of the main shaft and the resistance value of the support column.

(Item 2) The panel storage container according to Item 1, wherein the support is provided with a fitting hole in which the conductive member is arranged, The first end is fitted into the fitting hole via the conductive member.

(Item 3) The panel storage container according to Item 2, wherein the main shaft includes: a placement portion for placing the panel; and a base portion for supporting the placement portion in the first direction , the placing portion and the base portion extend along the second direction, and the maximum length of the base portion in a third direction intersecting the first direction and the second direction is longer than the placing portion. The maximum length in the third direction is large.

(Item 4) The panel storage container according to Item 3, wherein when viewed from the second direction, a maximum distance ratio between the center of gravity of the shape defined by the outer peripheral surface of the conductive member and the outer peripheral surface is given by The minimum distance between the center of gravity of the shape defined by the inner circumferential surface of the fitting hole and the inner circumferential surface is large, and the conductive member includes a stopper that is in contact with the first direction in the first direction. Both ends of the base portion in the third direction are in contact with each other.

(Item 5) The panel storage container according to any one of Items 1 to 4, wherein the conductive member is made of a resin material.

(Item 6) The panel storage container according to any one of Items 1 to 5, wherein the panel support part includes: a fixing member for fixing the main shaft to the pillar; and a receiving member provided on between the pillar and the fixed member, The fixing member is used for attaching to the pillar, and the total resistance value of the resistance value of the fixing member and the resistance value of the receiving member is equal to or greater than the resistance value of the conductive member.

(Item 7) The panel storage container according to Item 6, wherein the fixing member is made of a metal material, and the receiving member is made of an insulating material.

26b: Pillar

26g: chimeric hole

26i: rear surface

26j: Front surface

26k:郃康

26m: connecting hole

61: Support part

61a: Spindle

61b: Conductive member

61c: end (first end)

61e:Exposed part

61f: Embedded part

61g: Stopper

80: Undertake components

81: Fixed components

81a:Head

81b: Shaft

X, Y, Z: direction

Claims (7)

A panel storage container, characterized by comprising: a container body for storing a plurality of panels in a state of being arranged in a first direction; and A panel support part is provided inside the container body to support the plurality of panels, The panel support part includes a main shaft and a conductive member, the main shaft is used to support one panel among the plurality of panels and extends along a second direction intersecting the first direction, The container body includes a support for fixing the main shaft, The main shaft includes two ends in the second direction, namely a first end and a second end, The conductive member is provided at the first end to electrically connect the main shaft and the support column, The resistance value of the conductive member is greater than the resistance value of the main shaft and the resistance value of the support column. The panel storage container according to claim 1, wherein the support is provided with a fitting hole in which the conductive member is arranged, The first end is fitted into the fitting hole via the conductive member. The panel storage container according to claim 2, wherein the main shaft includes: a placement portion for placing the panel; and a base portion for supporting the placement portion in the first direction, The placing part and the base part extend along the second direction, A maximum length of the base portion in a third direction intersecting the first direction and the second direction is greater than a maximum length of the placing portion in the third direction. The panel storage container according to claim 3, wherein when viewed from the second direction, a maximum distance ratio between the center of gravity of the shape defined by the outer peripheral surface of the conductive member and the outer peripheral surface is determined by The minimum distance between the center of gravity of the shape defined by the inner circumferential surface of the fitting hole and the inner circumferential surface is large, The conductive member includes a stopper portion in contact with both ends of the base portion in the third direction in the first direction. The panel storage container according to any one of claims 1 to 4, wherein the conductive member is made of a resin material. The panel storage container according to any one of claims 1 to 4, wherein the panel support part includes: a fixing member for fixing the main shaft to the pillar; and a receiving member configured to between the pillar and the fixing member for mounting the fixing member to the pillar, The total resistance value of the resistance value of the fixing member and the resistance value of the receiving member is equal to or greater than the resistance value of the conductive member. The panel storage container according to claim 6, wherein the fixing member is made of metal material, The receiving member is made of insulating material.