JP2000142856A - Glass plate storage method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a glass plate storage method for providing the high storage efficiency by storing a plurality of glass plates to be used as a base material of a flat display panel through interleaving papers interposed among the glass plates, reducing the degree of pollution by interposing the interleaving papers on the glass plate faces and also reducing the generation of marks. SOLUTION: A steel holding stand 14 mounted on a pallet 13 is provided with a placing face 14a for mounting glass plates G in the vertical direction and a backrest face 14b extended from the rear end of the mount face 14a toward the vertical direction, and the mount face 14a is formed into the section L-shaped inclining toward the backrest face 14b downward by 6 deg.. Two hundred glass plates G are stored in a manner of being rested against holding stand 14, and interleaving papers 15 are interposed in the clearances of respective glass plates G.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for storing a flat glass plate used as a substrate material of a flat display panel such as a liquid crystal display panel or a plasma display panel.

[0002]

2. Description of the Related Art A glass sheet used as a substrate material for a flat display panel requires higher cleanliness and scratch quality compared to a general architectural window glass sheet or a vehicle window glass sheet.

For example, when a flat glass plate used as a substrate material of a liquid crystal display panel is housed, a method shown in FIGS. 3 and 4 is adopted.

[0004] The storage method shown in FIG. 3 prevents the occurrence of abrasion caused by direct contact between the glass plates G.
The glass plate G and the interleaving paper 10 are alternately laminated, and the laminate is wrapped with a packaging material 11 such as a paper or resin bag or film, thereby preventing dust and dirt from entering from outside. is there.

Further, in the storage method shown in FIG. 4, a glass plate G and a frame-shaped separating member (spacer) 12 are alternately laminated,
The laminate is wrapped with the packaging material 11.

[0006]

However, in the storage method shown in FIG. 3, since a load caused by laminating a large number of glass plates G is applied to the glass plates (especially the lower glass plate) G, the glass plates G are stacked. Contamination due to the contact of the slip sheet 10 with the surface of the plate G is likely to occur due to the pressure. Further, when foreign matter adheres to the slip sheet 10, there is a disadvantage that the glass plate G is easily damaged by the large load.

According to the storage method shown in FIG. 4, the frame-shaped separating member 12 comes into contact only with the frame of the glass plate G, so that the portion is liable to be contact-contaminated. The range in which the cleanliness is required to be maintained on the surface G is usually only the inner surface (effective surface) that does not include the frame portion of the surface, so there is no practical problem.

As a substrate material of a liquid crystal display panel, a material having a thickness of 1.1 mm or 0.7 mm is widely used.
0 × 400mm, 300 × 350mm, 300 × 300
mm, but recently the proportion of larger size glass substrates has increased, for example 85%.
0x950x1.1mm or 800x950x0.7mm
Ultra-large glass substrates having the following dimensions have also been manufactured.

However, in the method as shown in FIG. 4, as the vertical and horizontal size and thickness of the glass plate G increase, the deflection due to its own weight increases.
Must be increased to prevent contact between the glass plates G. However, the glass plate G used as the substrate material of the liquid crystal display panel is required to significantly reduce the production cost, and one of the measures is to reduce the transportation cost. Increasing the thickness undesirably causes a significant decrease in storage efficiency.

The present invention has been made in view of the above circumstances, and has a high storage efficiency because a plurality of glass plates used as a substrate material of a flat display panel are stored with interleaving paper interposed therebetween. It is an object of the present invention to provide a method for storing a glass plate in which the degree of contamination due to the interposition of a slip sheet on the plate surface is small and the generation of scratches is small.

[0011]

According to the present invention, there is provided a method for storing a glass plate, comprising: a mounting surface for mounting a glass plate used as a substrate material of a flat display panel in a vertical direction; and a rear end of the mounting surface. A plurality of glass plates are provided on a holding base having an L-shaped cross-section, which is provided with a backrest surface extending vertically from the portion, and the mounting surface is inclined downward by 2 to 20 degrees toward the backrest surface. After placing the backing plate in parallel with the backrest surface while interposing the interleaving paper in the gap, and placing the backing plate with the interleaving paper interposed on the outer surface of the frontmost glass plate, The belt-like body is fixed over the back of the backrest surface.

Further, the method for storing a glass plate according to the present invention is characterized in that all the glass plates are covered with a packaging material.

[0013]

A glass plate storage tool used as a substrate material for a flat display panel can maintain the surface of the glass plate (especially the effective surface) with a high degree of cleanliness, has excellent storage efficiency, and vibrates during transportation. It is required that the glass plate is not scratched or damaged even if it is produced, but the present invention satisfies all of these requirements.

That is, according to the present invention, since the mounting surface of the holding table is inclined downward by 2 to 20 degrees toward the back surface, when the glass plate is leaned against the back surface of the holding table,
Each glass plate is stored in a state of being inclined by 80 to 98 degrees. However, with such a tilt angle, almost no load is applied to the glass plate, so that contamination caused by contact of the slip sheet with the glass plate surface is prevented. The degree is small. Even if foreign matter adheres to the slip sheet, the load is small, so that the glass plate is hardly damaged.

Further, in the present invention, since the interleaving paper having a small thickness is used as the separating member of the glass plate, high storage efficiency can be obtained. The size (length and width) of the slip sheet may be the same as or slightly larger than the glass plate.

As the material of the holding table, metal or hard resin is suitable, and the mounting surface and the backrest surface may be integrated or may be separated. In addition, the reason why the inclination angle of the mounting surface is set to 2 to 20 degrees is that when the inclination angle is less than 2 degrees, the glass plate easily falls down when the glass plate is taken in and out, and the workability is reduced.
Further, when the inclination angle is larger than 20 degrees, the load applied to the glass plate increases, and the degree of contamination due to the contact of the slip sheet with the glass plate surface increases. A more preferable range of the inclination angle is 3 to 15 degrees.

Further, in the present invention, a backing plate is disposed on the outer surface of the glass plate positioned at the forefront with an interleaving paper interposed therebetween, and a band is hung from the backing plate to the back of the backrest surface of the holding table. Since the glass sheet is passed and fixed, the impact resistance from the surface direction of the glass sheet is improved, cracks and scratches of the glass sheet can be prevented, and displacement of each glass sheet during transportation can be prevented. At this time, it is preferable that another backing plate is interposed between the backrest surface of the holding table and the interleaf paper adjacent thereto, since the impact resistance is further improved. In addition, a hard resin is suitable as a material of the backing plate.

Further, in the present invention, it is preferable to cover all the glass plates with the packaging material, since it is possible to prevent the contamination of the glass plates due to the intrusion of dust and dirt from the outside. The packaging material may be in the form of a sheet or a bag. After covering them on the glass plate from above, the open end thereof may be fixed and sealed with a band-shaped body at the side periphery of the holding table. Incidentally, a polyethylene resin is suitable as a material of the packaging material.

Further, the present invention can be applied to a glass plate of a final product size used as a substrate material of a liquid crystal display panel or a flat display panel, and also to a large original glass plate before cutting into a final product size.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method for storing a glass plate according to the present invention will be described in detail based on embodiments.

FIG. 1 is a schematic side view showing a container obtained by the method for storing a glass plate of the present invention, and FIG.
It is a top view which shows the storage body of FIG.

An iron holding table 14 mounted on the pallet 13 has a mounting surface 14a for mounting the glass plate G in the vertical direction, and extends vertically from the rear end of the mounting surface 14a. A cross section L including a back surface 14b, and the mounting surface 14a is inclined downward by 6 degrees toward the back surface 14b.
It has the shape of a letter. The glass plate G is used as a base material of a liquid crystal display panel, and has a size of 800 mm × 950 mm × 0.7 mm.

On the holding table 14, 200 glass plates G are stored in such a manner that the glass plates G can lean against each other, and an interleaf 15 is interposed between the glass plates G. The size of the slip sheet is 850 mm x 1000 mm x 500 μm
(Thickness).

Outside the glass plate G positioned at the forefront, a hard resin backing plate 16 having a height larger than that of the glass plate G is arranged, and between the glass plate G and the backing plate 16. An interleaf 15 is interposed. Further, a similar backing plate 17 is interposed between the backrest surface 14b of the holding base 10 and the interleaf paper 15 located at the rearmost position, and extends from the backing plate 16 to the back of the backrest surface 14b of the holding base 14. The rubber bands 18 and 19 of the book are stretched and fixed.

Further, all the glass plates G are covered from above with a polyethylene resin packaging bag 20 together with the back surface 14a of the holding table 14 and the backing plates 16, 17.
The open end of the rubber band 2 extends over the side peripheral portion of the holding table 14.
1 is put over and sealed.

The storage body thus obtained is used for each glass plate G
Is only inclined at 6 degrees, and the load applied to the glass sheet G is small, so that the degree of contamination of the surface of the glass sheet G due to contact with the slip sheet 15 can be small. Further, even if a foreign substance adheres to the slip sheet 15, the load is small, and the surface of the glass plate G is less likely to be scratched.

Furthermore, since the interleaving paper 15 having a small thickness is used as a separating member for each glass plate G, the storage efficiency is excellent.

Patches 16 and 17 are arranged outside the glass plates G located at both ends, and two rubber bands 18, from the back surface 14 b of the holding base 14 to the patch 16.
Since it is fixed over the glass plate 19, it is possible to absorb a shock in the surface direction of the glass plate G and prevent the glass plate G from shifting.

Furthermore, each glass plate G is covered from above by a packaging bag 20 together with the back surface 14b of the holding table 14 and the backing plates 16, 17, and the open end of the packaging bag 20 is
Since the rubber band 21 is wrapped around the side peripheral portion of 4 and sealed, it is possible to prevent contaminants such as dust and dirt from entering from outside.

When the container is transferred to a room where cleanliness is required, the holder 14 is separated from the pallet 13 which is easily contaminated, and the container is carried in.
Room pollution can be reduced. When storing a glass plate G having a larger size, it is preferable that the pallet 13 has a structure capable of being transported by a forklift.

[0031]

As described above, according to the present invention, a plurality of glass plates used as a substrate material of a flat display panel are stored at a predetermined inclination angle with interleaving paper interposed therebetween. High storage efficiency is obtained, and the load applied to the glass plate is small, so the degree of contamination due to the surface contacting the slip sheet is small,
Scratch is less likely to occur. Furthermore, to arrange a patch on the outside of the glass plate located at the forefront, and to hang the band-shaped body from the patch to the back of the backrest surface of the holding table,
The impact resistance in the plane direction of the glass plate is improved, so that the glass plate can be prevented from being scratched or damaged, and the glass plate can be prevented from shifting during transportation.

Further, by covering all the glass plates with the packaging material, dust and dirt do not enter from the outside, so that contamination of the glass plates can be prevented.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing a storage body obtained by a method for storing a glass plate of the present invention.

FIG. 2 is a plan view showing the storage body of FIG.

FIG. 3 is an explanatory view showing a conventional method for storing a glass plate.

FIG. 4 is an explanatory view showing another conventional method for storing a glass plate.

[Explanation of symbols]

 G Glass plate 10, 15 Interleaf paper 11 Packaging material 12 Separation member 13 Pallet 14 Holder 14a Placement surface 14b Backrest surface 16, 17 Backing plate 18, 19, 21 Rubber band 20 Packaging bag

Claims (2)

[Claims] 1. A flat display panel comprising: a mounting surface for vertically mounting a glass plate used as a substrate material of a flat display panel; and a back surface extending vertically from a rear end of the mounting surface. Place the back surface on the back surface 2 to 2
A plurality of glass plates are leaned on an L-shaped cross section inclined at 0 degrees downward so as to be parallel to the backrest surface with interleaving paper interposed therebetween, and further positioned at the forefront. After arranging a backing plate with an interleaving paper interposed on the outer surface of the glass plate to be fixed, the band-shaped body is stretched from the backing plate to the back of the backrest surface of the holding table and fixed. Storage method. 2. The method for storing glass sheets according to claim 1, wherein all the glass sheets are covered with a packaging material.