WO2008010358A1

WO2008010358A1 - Method and apparatus for storing board-shaped body

Info

Publication number: WO2008010358A1
Application number: PCT/JP2007/061489
Authority: WO
Inventors: Takehiko Nose; Kazuya Toyoshima
Original assignee: Asahi Glass Company, Limited
Priority date: 2006-07-21
Filing date: 2007-06-06
Publication date: 2008-01-24
Also published as: JPWO2008010358A1; KR101364947B1; KR20090033322A; JP4998805B2; TW200808619A; CN101489883B; TWI335293B; CN101489883A

Abstract

Provided are method and apparatus for excellently storing large board-shaped bodies, such as large glass substrates, in a pallet one by one. The glass substrate storing apparatus is provided with a pallet inclining apparatus. The pallet having a positioning member arranged in L-shape is placed on the glass substrate storing apparatus, the pallet is inclined by the pallet inclining apparatus so that an angle formed by the top layer surface whereupon the board-shaped body is to be stacked and a horizontal surface is at 40 degrees or more, and that the lower side of the pallet is at 10 degrees or more from the horizontal surface. The end section of the glass substrate carried one by one to the pallet in such inclined posture is permitted to abut to the positioning member arranged in L-shape, and is positioned and stored.

Description

Specification

Plate-like body storage method and storage device

Technical field

[0001] The present invention relates to a plate-shaped body, particularly a flat panel display (FPD), that is, a plate for storing a large glass substrate for a liquid crystal display, a plasma display or the like, or a large glass substrate as an intermediate product in the manufacturing process on a pallet. The present invention relates to a storage method and a storage device for a shape.

Background art

[0002] In the manufacturing process of a large glass substrate used for FPD glass, etc., a strip-shaped plate glass manufactured by a glass substrate manufacturing kiln is cut into a predetermined size, and the cut rectangular large glass substrate is conveyed by a conveyor. Then, this is sucked and held by a robot, transferred one by one to a pallet, and stored in a pallet.

[0003] As a type of pallet, a plurality of glass substrates are stored in an upright state. The vertical pallet shown in Patent Document 2 and a plurality of glass substrates are stacked and stored in a flat position. A flat pallet disclosed in Patent Documents 3 and 4 is known. Since flat pallets can be stacked, they have the advantage that they can accommodate more floor space than vertical pallets, which are difficult to stack. In addition, when vertical pallets are transported by truck, they must be loaded at an angle to ensure safety. As a result, the number of sheets that can be accommodated with respect to the truck bed area is greatly reduced. Therefore, flat pallets are now attracting attention due to the situation of the number of sheets stored and distributed.

Patent Document 1: JP 2005-298062 A

Patent Document 2: Japanese Unexamined Patent Application Publication No. 2006-123953

Patent Document 3: Japanese Patent Laid-Open No. 2005-75366

Patent Document 4: Japanese Patent Laid-Open No. 2005-75433

Disclosure of the invention

Problems to be solved by the invention

[0004] However, it is known that a flat pallet is suitable for storing a large glass substrate. However, it is proposed specifically for a storage method and apparatus for storing large glass substrates manufactured in a glass substrate manufacturing kiln and transported by conveyors one by one in a flat pallet. It has been,

[0005] The present invention has been made in view of such circumstances, and a plate-like storage method that can satisfactorily store a large plate-like body such as a large glass substrate one by one on a pallet, and its An object is to provide an apparatus.

Means for solving the problem

[0006] The plate-like body described in this specification is mainly a glass substrate called a so-called 8th generation size (about 2400 mm x about 2160 mm). For example, in the case of a glass substrate for a liquid crystal display, The thickness is about 0.4 mm and the thickness is 0.7 mm. A glass substrate with a thickness of 0.7 mm has a mass of about 10 kg per sheet. When the glass substrate is stored, the upper surface of the conveyor is covered with a breathable interleaving paper, and the glass substrate is sucked and held by the robot via the interleaving paper, one by one on a flat pallet. Stored.

[0007] When the plate-like bodies are stored (stacked) one by one in a state where the pallet is horizontal, the uppermost plate-shaped body stored first, the plate-shaped body to be stacked, Since the air intervening between the plates is difficult to escape, that is, the air is easily trapped between the plates due to its large size, the small amount of air remaining between the plates causes the action of the air bearing. Thus, there arises a problem that the positions of the stacked plate-like bodies are shifted from each other. If the position of the plate-like body is shifted, automatic plate cutting becomes difficult in the subsequent process. If the plate-like body is greatly displaced, the plate-like body will come into contact with the edge or corner of the pallet, resulting in chipping, wrinkling or cracking. Such defects occur.

[0008] Therefore, when the pallet is inclined with respect to the horizontal plane, the air between the plate-like bodies is easily removed, and the problem of displacement is solved. The greater the tilt angle, the greater the effect. However, tilting a flat pallet when storing glass means that after storing a predetermined number of plates on the tilted pallet, the pallet is returned to a horizontal position and replaced with a new empty pallet. The operation of inclining the empty pallet again is necessary at the time of pallet replacement. The larger the inclination angle, the more time loss occurs, which is not efficient.

[0009] If an expensive robot having a high-definition function is used, the plate-like body is positioned on the pallet. It can be stored without misplacement, but when using a general-purpose robot that is generally used, the movement of the general-purpose robot will vary, and the plate will not be displaced due to the performance limit of the robot during storage. can not deny. Therefore, even if a general-purpose robot is used by controlling the inclination angle (posture) of the pallet using its own weight (gravity) and sliding the plate toward the positioning position, Providing a device that can store the device without being displaced is also desirable from the viewpoint of cost reduction of the device. In this case, as explained earlier, if the pallet tilt angle is set too large, a loss of time will occur when replacing the pallet!

[0010] In view of the above-described circumstances, the present invention provides a method for storing a plate-like body in which a rectangular plate-like body is stored on a pallet one by one. And a pedestal comprising two side positioning members fixed to the upper material and arranged in an L shape, the first side of the positioning member being positioned below the pallet, and the upper material and The pallet is tilted so that the angle formed with the horizontal plane is 40 degrees or more, and the pallet is tilted so that the angle formed between the first side of the positioning member and the horizontal plane is 10 degrees or more. The plate-like bodies are stored one by one in the inclined posture. Here, the lower part of the pallet refers to the lower part when the pallet is inclined so that the angle between the upper material and the horizontal surface is 40 degrees or more.

[0011] In the above method for storing a plate-like body, the plate-like body housed in the pallet is slid by gravity due to the inclined arrangement of the pallet, and a side portion of the plate-like body comes into contact with the positioning member. Therefore, it is preferable that the pallet is positioned at a predetermined position.

[0012] Further, in the present invention, in view of the above-described circumstances, the pallet is placed in a plate-shaped storage device that stores a rectangular plate-shaped material one by one on the pallet pedestal. First and second tilting means to be tilted, and transporting means for transporting and storing the plate-like bodies one by one on the pallet uppering material tilted by the tilting means, A positioning member having two sides arranged in an L shape for positioning the plate-like body at a predetermined position of the pallet is fixed to the upper material, and the first tilting means is a first member of the positioning member. The side of the pallet is positioned below the pallet and the pallet is inclined so that the angle between the upper material and the horizontal plane is 40 degrees or more. One The pallet is tilted so that the angle between the side and the horizontal plane is 10 degrees or more.

[0013] According to the present invention, the inclining means inclines the pallet so that an angle formed with the horizontal plane is 40 degrees or more in a state where the edge of the pallet is parallel to the horizontal plane, and the pallet upper material surface The pallet is tilted so that the angle formed by the first side of the positioning member and the horizontal plane is 10 degrees or more by rotating about an axis orthogonal to the axis. Then, the conveying means conveys and stores the plate-like bodies one by one on the inclined pallet.

[0014] When the angular force between the pallet overlay and the horizontal plane is less than 0 degrees, the above-described air venting problem is not improved, and when it exceeds 40 degrees, it can be drastically improved. This angle may be 40 degrees or more, but is preferably set to 40 degrees to 50 degrees because the pallet replacement time described above becomes longer as the angle increases. The upper limit of the angle is preferably about 72 degrees from the viewpoint of not causing stagnation in the stored plate-like body.

[0015] In addition, when the pallet is tilted so that the angle between the first side of the positioning member and the horizontal plane is 10 degrees or more, the pallet is tilted to 40 degrees or more, which is combined with the plate-like body. The plate-like body starts to slide toward the positioning position due to its own weight.

[0016] When the positioning member is provided on the pallet, the side portion of the plate-like body is brought into contact with the positioning member, and the plate-like body is positioned at a predetermined position on the pallet.

[0017] If the inclination angle formed by the first side of the positioning member and the horizontal plane is less than 10 degrees, the plate-like body does not slip, and the positioning time decreases as the inclination angle increases. However, since the pallet replacement time becomes long as described above, 10 to 20 degrees is preferable. Further, the slippage of the plate-like body depends on the frictional resistance between the positioning member and the plate-like body when there is a positioning member. Therefore, it is preferable to attach a glass end face sliding member such as kraft paper to the positioning member to improve the sliding property of the plate-like body with respect to the pallet. The invention's effect

[0018] According to the present invention, the pallet is inclined so that the angle between the edge of the pallet and the horizontal plane is 40 degrees or more in a state in which the edge of the pallet is parallel to the horizontal plane, and the axis is perpendicular to the upper pallet surface of the pallet. , The pallet is tilted to 10 degrees or more, and the plates are transported and stored one by one in the tilted pallet. It can be stored well one by one on the pallet.

Brief Description of Drawings

FIG. 1 is a side sectional view of a flat pallet.

FIG. 2 is a plan view of the flat pallet shown in FIG.

FIG. 3 is a plan view of the base of the flat pallet shown in FIG.

FIG. 4 is a perspective view of the upper pallet of the flat pallet shown in FIG.

FIG. 5 is a schematic plan view of a glass substrate storage device.

FIG. 6 is an explanatory view showing the operation of the pallet tilting apparatus.

FIG. 7 is a schematic structural diagram of a first tilting device.

FIG. 8 is a schematic structural diagram of a second tilting device.

Explanation of symbols

[0020] 1 ... pallet, 2 ... top cover, 3 ... pedestal, 4 ... glass substrate, 5 ... upholstery material, 6 ... protective material, 7-pressing member, 10 ... clamp, 11 ... for forklift , 12 ... Side cover, 13 ... Top cover, 14, 15 ... Side plate, 16, 17 ... Protective material, 18 ... Interleaf, 19, 20 ... Glass end face sliding member, 30 ... Frame, 50 ... Glass substrate storage device, 52 ... Conveyor, 54 "Robot, 56 ... Pallet tilting device, 58 ... Arm, 60 ... Adsorption node, 62 , 64 ... axis, 70 ... 1 tilting device, 72 ... table, 74 ... cylinder device, 76 "piston, 80 ... 2nd tilting device, 82 ... Cylinder device, 84 · "Piston, 86 ·" bracket

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of the plate-like body storage method and storage device according to the present invention will be described with reference to the accompanying drawings.

[0022] First, a pallet applied to the plate-like body storage device of this example will be described.

FIG. 1 is a side sectional view of a flat pallet 1 in which a glass substrate 4 called 8th generation size (about 2400 mm × about 2160 mm) is stored. The pallet 1 is composed of a pedestal 3 and an upper lid 2 placed on the pedestal 3, and about 120 glass substrates 4 are stored in a horizontally stacked state. In addition, a pressing member 7 that presses the laminated glass substrate 4 from above to the pedestal 3 is disposed on the upper lid 2 of the pallet 1.

[0024] Fig. 2 is a plan view of the pallet 1, which matches the shape of the glass substrate 4 to be stored. Accordingly, the plan view is rectangular. The upper lid 2 is removed from the pedestal 3 by appropriate means such as human power or a robot when the glass substrate is loaded on the pedestal 3 and when the glass substrate is taken out from the pedestal 3. Further, the upper lid 2 is fixed to the pedestal 3 by the clamp 10 so that it is not displaced from the pedestal 3 or dropped when the pallet 1 is transported.

[0025] The pallet 1 needs to have a structure capable of withstanding the weight and rigidity when a large number of glass substrates 4 are loaded. However, the lighter the weight, the better the transport efficiency and the storage efficiency. The weight when the glass substrate 4 is loaded is preferably 2000 kg or less.

FIG. 3 is a plan view of the base 3. As shown in FIG. 3, the pedestal 3 has a frame body 30 formed by assembling a plurality of steel or non-ferrous metal shaped steels in the form of a grid in the vertical and horizontal directions. The glass substrate 4 is laminated on the top material 5 (the bottom plate on which the glass substrate is laminated) 5 is fixed, and the glass substrate 4 protective material 6 (see FIG. 4) is fixed on the top material 5. The side plates 14 and 15 that are positioning members of the glass substrate 4 are arranged in an L shape in parallel with the two sides of the upper material 5 and fixed. Thus, the positioning members (in this example, the side plates 14 and 15) are arranged so that the two sides forming the L-shape are parallel to the two adjacent sides of the pallet 1. In this case, it is preferable that the two sides forming the L-shape are connected as in this example in terms of easy attachment to and removal from the palette, but they may not be connected. Further, the length dimension of the positioning member is not particularly specified as long as it is determined in accordance with the size of the glass substrate. However, if the dimensional force is too large, it may be difficult to position the glass substrate stably. Note that the positioning member is preferably disposed in the vicinity of the edge of the pallet.

FIG. 4 is a perspective view of the upholstery material 5. The upper material 5 is a non-ferrous metal plate such as an iron plate or aluminum, so that the glass substrate 4 can be stably placed on the pedestal 3 and can prevent dust from entering the interior space of the pallet that houses the glass substrate 4. It is arranged for.

[0028] Inside the side plates 14, 15 (positioning members), the protective members 16, 17 of the glass substrate 4 are fixed. The side plates 14 and 15 may be iron plates or iron square pipes. The glass substrate 4 protective material 16, 17 has a glass end face sliding member 19, 20, such as kraft paper, ultra high molecular weight polyethylene (UPE), fluorine Fat etc. are pasted. The glass substrate 4 is brought into contact with the glass end surface sliding members 19 and 20 attached to the protective members 16 and 17 fixed to the side plates 14 and 15, and is loaded in this state. As a result, the glass substrate 4 is positioned in the horizontal direction with respect to the base 3. As a result, it becomes easy to automatically take out the glass substrate 4 in the subsequent process.

[0029] Further, since the glass substrate 4 is brought into contact with the protective member 17 with which the lower side of the glass substrate 4 is in contact through the glass end surface sliding member 20, the pallet of the glass substrate 4 by the storage device described later is used. When the glass substrate 4 is stored in 1, the glass substrate 4 slides on the glass end surface sliding member 20 due to its own weight, and the vertical side of the glass substrate 4 abuts against the protective material 16, thereby positioning the glass substrate 4 in the horizontal direction. The

[0030] Further, the side plates 14 and 15 are arranged in the L shape on the two sides of the pallet so that the glass substrate 4 can be easily taken out in the subsequent process. If the glass substrate 4 is also removed when the end surface of the glass substrate 4 and the protective materials 16 and 17 fixed to the side plates 14 and 15 are in contact, the protective materials 16 and 17 may be damaged due to friction caused by the end surfaces. Therefore, the side plates 14 and 15 are preferably detachable so that they can be replaced as appropriate.

[0031] The base 3 and the side plates 14 and 15 may be made of a non-metallic material such as non-ferrous metal such as aluminum as long as it can secure the strength to support the glass substrate 4. The protective material 6, 16, 17 is preferably a material that can efficiently absorb, for example, a vibration frequency of 8 to 20 Hz in consideration of the frequency generated in the vehicle (or airplane) itself during land transportation or air transportation. . As the protective materials 6, 16, and 17, vibration absorbing materials such as rubber, silicone, and various types of resin can be used.

[0032] The upper lid 2 has an opening on the lower surface and surrounds the outside of the loaded plate-like body 4 from above. As shown in Fig. 1, four side covers 12, a top cover 13 and An internal space S for accommodating the glass substrate 4 is defined. The four side covers 12, the top cover 13, and the upper material 5 of the pedestal 3 prevent foreign matters such as dust from entering the internal space S. The side cover 12 and the top cover 13 may be made of steel, but the upper lid 2 needs to be attached and removed, so it is preferable that the cover is light. Therefore, it is preferable that only the frame portion of the upper lid 2 is made of steel, and the side cover 12 and the top cover 13 are made of a resin film or a plate-like body.

[0033] The pallet 1 is transported to a destination by a forklift, a truck, an airplane or the like. But Therefore, the glass substrate 4 is pressed by the pressing member 7 so that the individual glass substrates 4 do not move in the pallet 1 during the conveyance.

[0034] Because the pressing member 7 does not move the individual glass substrates 4 in the pallet 1 during the conveyance, the glass substrate 1 is free from defects such as chips, wrinkles, and cracks.

The glass substrate 4 can be easily taken out in the subsequent process.

[0035] For example, two forklift holes 11 for receiving a fork of a forklift (not shown) are formed in the base 3 in one shape steel frame member. As a result, the fork of the forklift can be received with respect to the knot << let 1 both in the vertical and horizontal directions and in the direction of displacement of the pedestal 3.

It should be noted that the glass substrate 4 suitable to be stored in the pallet 1 is a large glass substrate having a plate thickness of 0.4 mm to 1.3 mm and a longitudinal and lateral force of about 1800 mm × 2000 mm to 2400 mm × 2800 mm. In addition, when stacking in the pallet 1, in order to avoid direct contact between the glass substrates 4, the thin substrates 18 are stacked with the thin interleaf paper 18 sandwiched between the glass substrates 4 and 4.

[0037] The interleaf paper 18 is air permeable and has a rough surface with a smoothness of 18 seconds or less (JIS P 8119, 1976). The paper quality is preferably such that it is transferred to the surface of the glass and does not cause paper texture, burns, or smudges. In addition, the grease content of the interleaf paper 18 is 0.05% or less (JIS P 8205, 1976), and the quality of the glass substrate 4 itself is not adversely affected by the combined effect with the paper surface roughness described above! /, It is like paper quality.

FIG. 5 is a schematic plan view of the glass substrate storage device (plate-shaped storage device) 50 of this example.

A storage device 50 shown in the figure is installed adjacent to a conveyor 52 installed downstream of a glass substrate manufacturing kiln (not shown), and includes a robot (conveying means) 54 and a pallet tilting device (tilting hand). Dan) It is composed mainly of 56.

[0040] The robot 54 is a general-purpose six-axis articulated robot, and a rectangular suction hand 60 in which a number of suction pads (not shown) are arranged flush with each other is connected to the tip of the arm 58. ing. When the glass substrate 4 on which the interleaf paper 18 is placed is transported to the sampling position on the downstream side of the conveyor 52, the robot 54 is swung in the arrow direction to the sampling position. And adsorption The glass substrate 4 is adsorbed by the hand 60 through the interleaf paper 18, and thereafter, the glass substrate 4 is stored together with the interleaf paper 18 in the pallet 1 that is previously inclined at a predetermined angle by the pallet inclination device 56.

As the robot 54 repeats this operation, the glass substrates 4 are stored on the pallet 1 one by one. The robot 54 is not limited to a 6-axis articulated robot, and may be a dedicated robot as long as it can transport a glass plate regardless of its configuration and name.

[0041] By the way, when the glass substrates 4 are stored (stacked) one by one in the pallet 1 with the pallet 1 being horizontal, they are stacked with the uppermost glass substrate 4 stored first. Since the air intervening between the glass substrate 4 and the next glass substrate 4 is difficult to escape, that is, because the glass substrate 4 is large, air is easily trapped between the glass substrates 4 and 4, so that the glass substrate 4 A small amount of air remaining between the four causes the action of an air bearing, and a problem arises when the positions of the laminated glass substrates 4 are shifted from each other. If the position of the glass substrate 4 is shifted, automatic plate cutting becomes difficult in the subsequent process, and if it is greatly shifted, the glass substrate 4 will contact the edges or corners of the Nott 1, causing chipping, wrinkling, cracking, etc. Cause defects.

[0042] Therefore, when the pallet 1 is inclined with respect to the horizontal plane, the air between the glass substrates 4 and 4 becomes easier to escape, and the problem of displacement is solved. The greater the tilt angle, the higher the effect. In the first place, the flat pallet 1 is tilted in the first place. After a predetermined number of glass substrates 4 are stored in the tilted pallet 1, the pallet 1 is returned to the horizontal position, and a new empty pallet 1 The operation of tilting the empty pallet 1 again is necessary at the time of pallet replacement, and the larger the tilt angle, the more time is lost, which is not efficient.

[0043] Further, if an expensive robot having a high-definition function is used, the glass substrate 4 can be stored in the pallet 1 without being displaced. A commonly used 6-axis multi-joint general-purpose robot When 54 is used, the glass substrate 4 cannot be displaced due to the performance limit of the robot.

[0044] Therefore, even when the general-purpose robot 54 is used by controlling the inclination angle (posture) of the pallet 1 using its own weight (gravity) of the glass substrate 4 and sliding the glass substrate 4 toward the positioning position. A device capable of storing the glass substrate 4 without being displaced is provided. Therefore, it is desirable to reduce the cost of equipment. In this case, as previously explained,

If the tilt angle of 1 is inadvertently set large, it is not preferable because a time loss occurs when changing the pallet.

[0045] According to the glass substrate storage device 50 of the present example, the pallet tilting device 56 places the positioning member 15 below the pallet 1 as shown in FIG. The pallet 1 is tilted around the axis 62 so that the angular force between the horizontal plane H and the horizontal plane H is 0 degree or more, and the angle between the positioning member 15 and the horizontal plane is 10 degrees as shown in Fig. 6 (B). As described above, the pallet 1 is tilted by rotating around the shaft 64 orthogonal to the surface of the upper material 5 of the pallet 1. Then, the robot 54 shown in FIG. 5 transports and stores the glass substrates 4 one by one on the pallet 1 in the inclined posture.

[0046] When the angle formed with the horizontal plane H of the pallet 1 is less than 40 degrees, the above-described problem of air venting is not improved, and when it exceeds 40 degrees, it can be drastically improved. This angle is not particularly limited as long as it is 40 degrees or more, but it is preferable to set it to 40 degrees to 50 degrees because the pallet replacement time described above becomes longer as the angle increases. The upper limit of the angle is preferably about 72 degrees from the viewpoint of preventing stagnation in the glass substrate 4 housed in the nott 1.

[0047] Further, when the pallet is tilted by 10 degrees or more by rotating around the shaft 64, the glass as shown in FIG. 6 (C) is coupled with the tilt of 40 degrees or more shown in FIG. 6 (A). Due to the weight of the substrate 4, the lower side 4 A of the glass substrate 4 slides on the kraft paper of the protective material 17 in the direction of arrow A, and the vertical side 4 B of the glass substrate 4 contacts the protective material 16. Thereby, the position of the glass substrate 4 in the horizontal direction (plate surface direction) is positioned, and the glass substrate 4 is positioned at a predetermined position on the pallet 1.

[0048] If the inclination angle between the positioning member 15 of the pallet 1 and the horizontal plane is less than 10 degrees, the glass substrate 4 will slip. In addition, the positioning time is shortened as the inclination angle is increased. However, as described above, the pallet replacement time is lengthened, so 10 to 20 degrees is preferable. Therefore, according to the glass substrate storage device 50 of the present example, the pallet 1 is inclined so that the angular force formed with the horizontal surface H of the base 3 is 0 degree or more, and the pallet 1 is placed on the surface of the upper covering material 5. Rotate around the orthogonal axis 64 and tilt the pallet 1 more than 10 degrees. Since the glass substrates 4 are transported and stored one by one in the inclined pallet 1, the large glass substrates 4 can be satisfactorily stored in the pallet 1 one by one. At that time, if there is an interleaf between the glass substrate 4 and the glass substrate 4, the frictional resistance between the glass substrates 4 and 4 becomes low, and the protective material 16 and 17 for the glass substrate 4 fixed to the side plates 14 and 15 If the glass end surface sliding members 19 and 20 are attached to the glass end surface, the frictional resistance between the glass end surface sliding members 19 and 20 and the end surface of the glass substrate 4 is reduced, so that the glass can be stored better.

[0049] FIG. 7 is a schematic structural diagram of a first tilting device 70 in the pallet tilting device 56 that tilts the pallet 1 so that the angle between the base 3 of the pallet 1 and the horizontal plane H is 40 degrees or more. FIG. 8 shows a schematic structure of the second tilting device 80 of the pallet tilting device 56, which rotates the pallet 1 by 10 degrees or more by rotating it around an axis 64 orthogonal to the surface of the upper material 5 of the pallet 1. FIG.

According to the first tilting device 70 shown in FIG. 7, the pallet 1 with the upper lid 2 removed is placed on the table 72, and the table 72 can swing (raise and lower) via the shaft 62. And the piston 76 of the cylinder device 74 is connected to the table 72. When the piston 76 is expanded and contracted, the table 72 is raised and lowered around the shaft 62, which can change the posture of the pallet 1 between the position tilted more than 40 degrees and the horizontal position. it can.

[0051] According to the second tilting device 80 shown in FIG. 8, the table 72 on which the pallet 1 is placed is provided so as to be swingable via the shaft 64, and the cylinder device is provided at the edge of the table 72. 8 Two pistons 84 are connected via a bracket 86. When the piston 84 is expanded and contracted, the table 72 is swung through the shaft 64, whereby the posture of the pallet 1 can be adjusted to a position inclined by 10 degrees or more. In this example, the cylinder is exemplified as the tilting device. However, any mechanism may be used as long as the pallet 1 can be tilted by motor drive.

In this example, the glass substrate 4 has been described as the plate to be stored, but it can also be applied to a plate such as a resin plate or a metal plate.

Industrial applicability

The present invention is particularly suitable for storing in a pallet a large glass substrate for a flat panel display such as a liquid crystal display or a plasma display, or a large glass substrate which is an intermediate product in the manufacturing process. It should be noted that the entire contents of the specification, claims, drawings and abstract of the Japanese Patent Application 2006-199418 filed on July 21, 2006 are cited here as disclosure of the specification of the present invention. Incorporate.

Claims

The scope of the claims

[1] According to a method of storing a plate-like body in which rectangular plate-like bodies are stored one by one in a pallet, the pallet is fixed to the upper material on which the plate-like bodies are laminated and the upper material. It has a pedestal with two side positioning members arranged in an L shape,

The first side of the positioning member is positioned below the pallet, the pallet is tilted so that the angle between the upper material and the horizontal surface is 40 degrees or more, and the first of the positioning member is The plate-like body is stored by tilting the pallet so that the angle between the side and the horizontal plane is 10 degrees or more, and storing the plate-like bodies one by one in the inclined pallet.

[2] The plate-like body stored in the pallet is slid by gravity due to the inclined arrangement of the pallet, and the side portion of the plate-like body abuts on the positioning member, thereby being positioned at a predetermined position of the pallet. The method for storing a plate-like body according to claim 1.

[3] A plate-shaped storage device that stores rectangular plate-like materials one by one on the pallet pedestal, ¾ [this; i l /,

First and second tilting means for tilting the pallet;

Transporting means for transporting and storing the plate-like bodies one by one on the pallet overlay arranged by the tilting means;

A positioning member with two sides arranged in an L shape for positioning the plate-like body at a predetermined position on the pallet is fixed to the upper material,

The first tilting means tilts the pallet so that the first side of the positioning member is positioned below the pallet and the angle between the upper material and the horizontal plane is 40 degrees or more. The second tilting means tilts the pallet so that the angle formed by the first side of the positioning member and the horizontal plane is 10 degrees or more.