WO2006059439A1

WO2006059439A1 - Package spacer for glass plate and package unit using the same

Info

Publication number: WO2006059439A1
Application number: PCT/JP2005/019682
Authority: WO
Inventors: Naoki Nishimura
Original assignee: Nippon Electric Glass Co., Ltd.
Priority date: 2004-12-02
Filing date: 2005-10-26
Publication date: 2006-06-08
Also published as: CN101035722A; TW200619103A; JP2006160271A

Abstract

A package spacer having a frame-like base frame section (2) and a projection frame section (3) provided in a projecting manner in an outer peripheral region on the front surface side of the base frame section (2). The package spacer (1) is constructed such that the surface of an outer peripheral edge section of a glass plate (6) is along a front surface (2a) of an inner periphery side region of the base frame section (2) and an inner surface (3c) of the projection frame section (3) surrounds an outer peripheral end of the glass plate (6). Also, the dimension f of the projection from the front surface (2a), in the inner periphery side region of the base frame section (2), to a surface (3a) of the projection frame section (3) is set greater than the thickness of the glass plate (6), and a back surface (2b) of the base frame region (2) is a flat surface. The package spacer (1) is used when glass plates are arranged in a vertical position.

Description

Specification

Glass plate packing spacer and packing unit using the same

Technical field

TECHNICAL FIELD [0001] The present invention relates to a glass plate packing spacer and a packing unit using the same, and more particularly, a plurality of glass plates are arranged vertically and a packing spacer is provided between the glass plates. The present invention relates to packaging technology that intervenes.

Background art

[0002] As is well known, a plurality of glass plates that are used for manufacturing glass panels for various image display devices such as liquid crystal displays, plasma displays, electoric luminescence displays, and field emission displays can be moved simultaneously. If requested, it is usually transported as a packing unit. And the glass plates listed in this example and the glass plates according to these, especially the so-called mother glass plate with an unfinished end face, are notable for thin and easy to break along with the large plates in recent years. However, the packaging has become important.

[0003] This type of glass plate packing method includes so-called slip-sheet packing in which glass sheets are packed through a pair of slip sheets, and frame-shaped flat spacers made of paper resin one by one. So-called VS (Vertical Spacer) packaging, in which a glass plate is packaged through, is generally widely known. The above-mentioned interleaving paper packaging uses extremely thin interleaving paper, so it is excellent in terms of stacking efficiency. Large glass plates (for example, vertical and horizontal dimensions of about 1000 to 2500 mm each) ), The glass plate is squeezed to increase the probability of occurrence of cracks. In addition, the foreign matter (impurities) contained in the slip sheet is transferred to the glass plate as the slip sheet and the glass plate are pressed together, and the foreign matter is pressed and fixed to the glass plate. It causes a problem that it becomes difficult or impossible.

[0004] On the other hand, in the above VS packaging, only the outer peripheral edge of the glass plate is pressed by a flat plate spacer. Fixing can be avoided, but if the glass plate is as large as the above, the glass plates will interfere with each other due to the stagnation deformation in the inner peripheral area, causing damage and cracking. It becomes. This In order to eliminate such drawbacks, the force that would be required to increase the thickness of the flat spacers. Such a simple method would drastically reduce the loading efficiency. Also, if the flat spacers are simply interposed between the glass plates, the glass plates move relative to each other along the plane of the flat spacers, causing sliding between the two, causing scratches and scratches. If it becomes a cause of cracking, it may cause a fatal problem that it becomes impossible to maintain a stable loaded state or stowed state due to the relative positional deviation between the two.

[0005] As a technique capable of coping with such a problem, it is not intended for the above-mentioned mother glass plate, but according to the following Patent Document 1, each of the plurality of glass plates with a film is stacked. It has been proposed that the resin spacers disposed between the glass plates have the following configuration. That is, this spacer made of resin has a base frame portion and an outer frame portion, the base frame portion is interposed between the upper and lower glasses, and the outer frame portion is located outward from the peripheral edge of the glass plate. A step portion is provided between the upper and lower surfaces of the base frame portion and the upper and lower surfaces of the outer frame portion, and the upper surface of the outer frame portion is the lower surface of the outer frame portion of the adjacent upper spacer. It is comprised so that it may contact | abut. According to such a configuration of the grease spacer, the movement of the glass plate is restricted by the step portion provided on the upper surface of the outer frame portion, and the relative position deviation between them does not slide, When the upper surface of the outer frame part comes into contact with the lower surface of the outer frame part of the adjacent upper spacer, the movement of the lower spacer with respect to the outer frame part is performed by the step provided on the lower surface of the outer frame part. Is restricted, and the relative displacement between the upper and lower spacers is moderately prevented. In addition, the same document discloses that a gap is provided between the upper surface of the glass plate and the lower surface of the base frame when stacked.

Patent Document 1: Registered Utility Model No. 3054701

Disclosure of the invention

Problems to be solved by the invention

[0006] However, the resin spacer disclosed in Patent Document 1 is used when stacking a plurality of glass plates in a horizontal position (horizontal posture) up and down. As described above, even when the gap is provided between the upper surface of the glass plate and the lower surface of the base frame when stacked, the upper and lower sides act on the outer frame portion of the resin spacer. Since the amount of compressive load to be applied is different, the amount of stagnation of the outer frame portions is inevitably different. Upper stage force It is virtually impossible to make the gap uniform over the entire lower stage. For this reason, if the above gap at the lowermost level is set to an appropriate size, the upper gap on the upper side becomes unreasonably large, leading to a decrease in loading efficiency, and conversely, an appropriate loading efficiency. If this is attempted, the above-mentioned gap at the lowermost stage disappears, and the glass plate is pressed by the base frame portion of the resin spacer, resulting in a high probability of occurrence of scratches and cracks.

[0007] Considering that the large plate of glass is being promoted, the vertical installation is far superior in terms of loading efficiency and handling than horizontal installation! However, if the resin spacer disclosed in Patent Document 1 is applied to a packing form in which glass plates are arranged vertically, the following problems arise. In other words, in this vertical packing form, considering handling and ease, it is preferable to arrange the glass plates and the resin spacers in order while maintaining the vertical position. If the outer frame portions of the adjacent resin spacers are brought into contact with each other in the vertical posture as described above, the stepped portion on the lower surface of the outer frame portion becomes a hindrance and the contact between the two is prevented. For this reason, the work for this becomes extremely troublesome and complicated, and the work efficiency is inevitable. Therefore, if this resinous spacer is used in a vertically-packed form, it cannot meet the recent demand for productivity improvement.

[0008] The present invention has been made in view of the above circumstances, and by improving the packaging spacer interposed between the vertically placed glass plates, each glass plate and each packaging spacer are improved. Arrangement with spacers is facilitated to improve work efficiency and productivity, and the gaps between these glass plates and packing spacers are appropriate and uniform throughout. Therefore, the technical issue is to ensure the protection of each glass plate.

Means for solving the problem

[0009] The present invention, which was devised to solve the above technical problem, is a packaging space disposed between glass plates when packaging a plurality of glass plates arranged vertically. A frame-shaped base frame portion and a projecting frame portion projecting from the outer peripheral region on the surface side of the base frame portion, and glass is formed on the inner peripheral side region of the base frame portion. The surface of the outer peripheral edge of the plate is aligned, and the inner surface of the protruding frame portion surrounds the outer peripheral edge of the glass plate, and the surface force of the inner peripheral region of the base frame portion The surface of the protruding frame portion The projecting dimension is set to be larger than the thickness of the glass plate, and the back surface of the base frame portion is a flat surface. In this case, it is preferable that the glass plate is a mother glass plate used for manufacturing a glass panel for a liquid crystal display having a vertical dimension and a horizontal dimension of about 1000 to 2500 mm and a thickness of 1 mm or less.

[0010] According to such a configuration, when a packaging spacer is interposed between each of a plurality of glass plates arranged in a vertical orientation, the base frame portion of one packaging spacer is arranged. The surface of the outer peripheral edge portion of the glass plate is along the surface of the inner peripheral region, and the outer peripheral edge of the glass plate is surrounded by the inner surface of the protruding frame portion of the packing spacer. In addition, on the front side of this packing spacer, there is a back surface of another adjacent packing spacer. Specifically, the protruding frame portion which is the most front side surface of one packing spacer. The rear surface of the base frame portion, which is the rearmost surface of the other packaging spacer, is brought into contact with the front surface of the packaging space directly or through a protective sheet described later. In this case, the surface force of the inner peripheral side region of the base frame portion in one packing spacer is set to be larger than the thickness of the glass plate, and the protruding dimension to the surface of the protruding frame portion is set. Since the back surface of the base frame part in the spacer is a flat surface, the outer peripheral edge of the glass plate is the surface of the inner peripheral side area of the base frame part in one packing spacer and the other packing spacers. It is interposed in a state where a gap is provided between the rear surface of the base frame portion in the base. And since the several glass plate is arranged vertically, the said clearance gap is uniformly maintained about all the glass plates to the one end force other end of the arrangement direction. As a result, the undue variation of the gap as in the case where the glass plates are arranged horizontally is prevented, and each glass plate is reliably protected. As described above, since the back surface of the base frame is a flat surface, as described above, when packing work is performed with the packing spacer and the glass plate arranged in sequence, one packing space is required. It is possible to easily and smoothly arrange the back side of the base frame part of another adjacent packaging spacer on the front side of the protruding frame part of the spacer without being disturbed by the protruding part. Efficiency and production efficiency can be improved.

[0011] In the above configuration, the difference between the protruding dimension from the surface of the inner peripheral region of the base frame portion to the surface of the protruding frame portion and the thickness of the glass plate is preferably set to 1 mm or more. .

In this way, even if some compression deformation occurs in the base frame part and the projecting frame part, it is possible to prevent the gaps from being lost, and the glass plate is improperly pressed by the packaging spacer. It is possible to appropriately suppress the occurrence of scratches and cracks due to the above. In this case, the inner circumference of the base frame Surface force of the side area If the protrusion dimension to the surface of the protruding frame is set to about 1.5 to 2.5 mm, an appropriate gap is provided when packing a glass plate used for manufacturing a glass panel for a liquid crystal display. Can be secured. Note that the upper limit of the difference is preferably about 2 mm.

[0013] In the above configuration, it is preferable that the base frame portion and the protruding frame portion are formed of cardboard containing cellulose fiber as a component.

[0014] As described above, if cardboard (compressed paper or cardboard) containing cellulose fiber as a component is used, it has a sufficient strength, so that deformation does not easily occur and the hardness is lower than that of the glass plate. Advantages such as being hard to be damaged on the plate can be enjoyed. Specifically, it is preferable to use a transformer board (trade name, manufactured by Oji Paper Co., Ltd.).

[0015] In the above configuration, it is preferable that the base frame portion and the protruding frame portion are formed as separate bodies and fixed with an adhesive!

[0016] In this way, a cardboard that uses cellulose fiber as a component (compressed paper or cardboard) is used as described above. In this case, it is possible to enjoy the advantages that the strength increases with the fixation by the adhesive, and that bending deformation hardly occurs.

[0017] In the above configuration, it is preferable that the protruding frame portion protrudes only from the upper side portion and the left and right side portions of the base frame portion.

According to this configuration, since the protruding frame portion is not provided on the lower side portion of the base frame portion, only the upper end and the left and right ends of the glass plate are surrounded by the inner surface of the protruding frame portion. Therefore, it is possible to easily arrange the packaging spacer and the glass plate during the packaging operation. That is, if a protruding frame portion is also provided on the lower side portion of the base frame portion, in order for the surface of the outer peripheral edge portion of the glass plate to follow the surface of the inner peripheral region of the base frame portion, glass It becomes necessary to place the lower end of the plate on the inner surface of the protruding frame (for example, on a slight protruding surface of about 1.5 to 2.5 mm), and this work becomes troublesome and complicated. However, if the projecting frame portion is not provided on the lower side portion of the base frame portion as described above, such a work is not necessary, and this also improves the work efficiency.

[0019] Further, the present invention created to solve the above technical problem is suitable for each of the above configurations. A packaging unit in which a plurality of glass plate packaging spacers are arranged vertically and each glass plate is interposed between the packaging spacers. The protrusion of one adjacent packaging spacer with the outer peripheral edge of the glass plate along the inner peripheral surface of the base frame and the outer peripheral edge of the glass plate surrounded by the inner surface of the protruding frame. The front surface of the frame portion and the back surface of the base frame portion of the other packaging spacer are brought into contact with each other via a protective sheet. In this case, the surface portion of the outer peripheral edge of the glass plate along the surface of the inner peripheral region of the base frame portion (the surface portion of the outer peripheral edge of the glass plate that can contact the surface of the inner peripheral region of the base frame portion) is The non-effective surface is preferable.

[0020] According to such a configuration, in addition to the same advantages as the advantages of the packaging spacer having each of the configurations described above, In other words, since a protective sheet is interposed between the glass plates, contact between the glass plates is avoided even if the glass plates are distorted by a large bending deformation. In addition, defects such as scratches on the glass plate are less likely to occur.

[0021] In the above packing unit, the protective sheet is preferably a slip sheet.

[0022] By doing so, it is possible to improve the stacking efficiency due to the thinness of the interleaving paper and to reduce the cost. As the protective sheet, a resin sheet or a foamed resin sheet may be used. The invention's effect

As described above, according to the present invention, a glass plate is provided between the surface of the base frame portion of one packing spacer and the back surface of the base frame portion of another packing spacer adjacent thereto. Since the plurality of glass plates are arranged in a vertically placed state with the outer peripheral edge portion of the glass plate having a gap, all the glass plates up to one end force and the other end in the arrangement direction are The gaps are kept uniform, thereby preventing the above-mentioned undue variations in the gaps as in the case where the glass plates are arranged horizontally, thereby ensuring the protection of each glass plate. Also, since the back of the base frame is flat, the packing spacer and the glass plate are arranged one after the other, and when packing work is performed, the impact of one packing spacer It is possible to easily and smoothly arrange the back side of the base frame part of other packing spacers on the front side of the frame part without being interrupted by protrusions, etc., improving work efficiency and improving production efficiency. Is improved. Brief Description of Drawings

FIG. 1 is a front view showing a packaging spacer for glass sheets according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional plan view of a main part cut along line AA in FIG.

FIG. 3 is an enlarged longitudinal sectional side view of a main part cut along line BB in FIG.

FIG. 4 is a cross-sectional plan view of the main part showing a packing unit in which a plurality of glass plates are arranged and stored in a vertical arrangement using the above-described packing spacer.

FIG. 5 is a vertical cross-sectional side view showing a main part of a packing unit in which a plurality of glass plates are arranged and stored in a vertical arrangement using the above-described packing spacer.

FIG. 6 is a fragmentary schematic side view showing an aspect of an operation for sequentially arranging the above-described packing spacer, glass plate and protective sheet.

Explanation of symbols

[0025] 1 Packing spacer

2 Base frame

2a Surface of base frame

2b Back side of base frame

3 Projection frame

3a Projection frame surface

3c Inside surface of the protruding frame

4 Packing unit

5 Protective sheet (interleaf)

6 Glass plate

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a front view showing a glass sheet packaging spacer according to an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional plan view of a main part cut along the line AA in FIG. 1, and FIG. FIG. 3 is an enlarged longitudinal sectional side view of a main part cut along a line BB in FIG.

As shown in FIG. 1, the packaging spacer 1 includes a frame-shaped base frame portion 2 and a projecting frame portion 3 projecting from the outer peripheral side region on the surface side of the base frame portion 2. The base frame part 2 and the protruding frame part 3 are Although it is possible to form a body, in this embodiment, it is formed as a separate body and fixed with an adhesive. The base frame portion 2 and the projecting frame portion 3 are each formed of cardboard (compressed paper) made of cellulose fiber, specifically, a transformer board (trade name, manufactured by Oji Paper Co., Ltd.). Yes. Further, the projecting frame part 3 may project from the four sides of the base frame part 2, but in this embodiment, the projecting frame part 3 projects from the upper side part and the left and right side parts of the base frame part 2, and its lower side part. There is no protrusion. The packaging spacer 1 has a longitudinal dimension a of 1100 to 2650 mm and a lateral dimension b force of 1100 to 2650 mm.

[0028] As shown in FIGS. 2 and 3, the base frame part 2 has a width c of all sides of 50 to 80 mm, and the projecting frame part 3 has a width d of all sides of 45 to 65 mm. The width e of the surface (exposed surface) 2a of the inner peripheral side region of the base frame 2 is 5 to 25 mm. Then, the thickness of the projecting frame part 3, in other words, the projecting dimension f from the exposed surface 2a of the base frame part 2 to the surface 3a of the projecting frame part 3 is 1 to 3 mm (2 mm in this embodiment). The thickness g of the frame portion 2 is 4 to 8 mm (6 mm in this embodiment). The glass plate to which the packaging spacer 1 is applied is a glass plate (mother glass plate) used for manufacturing a glass panel for a liquid crystal display.

[0029] Fig. 4 is a cross-sectional plan view of the main part showing a packing unit in which about 100 glass plates are vertically arranged and stored using the above-described packing spacer 1, and Fig. 5 shows the packing. It is a principal part vertical side view of a unit.

[0030] As shown in FIGS. 4 and 5, the packing unit 4 includes a surface 3a of the protruding frame portion 3 in one adjacent packing spacer 1 and a base frame portion in the other packing spacer 1. A protective sheet 5 made of interleaving paper is interposed between the back surface 2b of 2. And there is a gap between the exposed surface 2a of the base frame 2 in one packing spacer 1 and the back surface 2b (protective sheet 5) of the base frame 2 in the other packing spacer 1. The glass plate 6 is stored in the state. Specifically, the surface of the outer peripheral edge of the glass plate 6 is along the exposed surface 2a of the base frame part 2 of one packing spacer 1 and at the same time the base frame part 2 of the other packing spacer 1 Further, the outer peripheral edge of the glass plate 6 is surrounded by the inner surface 3c of the protruding frame portion 3 of one packing spacer 1. The surface portion of the outer peripheral edge of the glass plate 6 along the exposed surface 2a of the base frame portion 2, that is, the surface portion of the outer peripheral edge portion of the glass plate 6 that can come into contact with the exposed surface 2a of the base frame portion 2 is an ineffective surface. The center of the glass plate 6 that cannot be contacted with the exposed surface 2a A surface portion of the region is an effective surface.

[0031] In this case, the protruding dimension f from the exposed surface 2a of the base frame portion 2 to the surface 3a of the protruding frame portion 3 is about 1 to 2 mm longer than the thickness of the glass plate 6, that is, glass. The clearance S1 in the direction perpendicular to the surface of the plate 6 is set to be about 1 to 2 mm. In this embodiment, since the glass plate 6 is a glass plate (thickness of 0.7 mm or less) used for manufacturing a glass panel for a liquid crystal display, the protruding dimension f is 1.5 to 2. About 5mm. Further, a gap S2 of about 1 to 5 mm is provided between the inner surface 3c of the protruding frame 3 and the outer peripheral end of the glass plate 6. Then, as shown in FIGS. 4 and 5, the packing unit 4 includes a binding band or the like around the outer periphery of each packing spacer 1, each glass plate 6, and each protective sheet 5. A member (not shown) is wound around. 4 and 5 show the state in which the glass plate 6 is in contact with the exposed surface 2a of the base frame portion 2 for the sake of convenience. is not.

FIG. 6 is a schematic side sectional view showing a main part of the working state of arranging the packaging spacer 1, the glass plate 6, and the protective sheet 5 in order. As shown in the figure, this arraying operation is performed by placing the above-described constituent elements on the support base 7 having the inclined surface 7a, for example, by lowering them in order of upward force. More specifically, as the packing spacer 1 moves upward, the surface of the packing spacer 1 is inclined so that the vertical surface force gradually increases, and the glass plate 6 is mounted on the surface. After that, the protective sheet 5 and the subsequent packaging spacer 1 are placed. In this case, since the protruding frame 3 is not provided on the lower side of the base frame 2 of the packaging spacer 1, when the glass plate 6 is stored on the front side of the packaging spacer 1, Thus, the troublesome and complicated work of placing the glass plate 6 on the narrow inner surface 3c of the projecting frame portion 3 becomes unnecessary. Further, when the subsequent packaging spacer 1 is placed on the surface side of the packaging spacer 1 in which the glass plate 6 is stored via the protective sheet 5, the base frame portion of the packaging spacer 1 is used. Since the back surface 2b of 2 is a flat surface, even if the packing spacer 1 is moved straight down and can be lowered, it can be placed smoothly and easily without being disturbed by the protruding portion or the like. . Such an advantage is not limited to the case where the packaging spacer 1 or the glass plate 6 is placed with the upper force lowered, and can be enjoyed even when the packaging spacer 1 is placed while being fed in the horizontal direction. .

[0033] In the above embodiment, the gas used for manufacturing a glass panel for a liquid crystal display is used. In addition to this, the glass plate used for the production of glass panels for various image display devices such as plasma displays, electoric luminescence displays, field emission displays, etc. The present invention can be similarly applied to various electronic display functional elements and glass plates used as substrates for forming thin films.

Claims

The scope of the claims

[1] A packaging spacer disposed between glass plates when packing a plurality of glass plates arranged vertically,

A frame-like base frame portion, and a projecting frame portion protruding from the outer peripheral side region on the surface side of the base frame portion, and an outer peripheral edge portion of the glass plate on the surface of the inner peripheral side region of the base frame portion And the inner surface of the protruding frame portion surrounds the outer peripheral edge of the glass plate, and the surface force of the inner peripheral side region of the base frame portion is set so that the protruding dimension to the surface of the protruding frame portion is the glass. A packaging spacer for a glass plate, which is set to be larger than the thickness of the plate, and the back surface of the base frame portion is a flat surface.

[2] The differential force between the protruding dimension from the surface of the inner peripheral region of the base frame portion to the surface of the protruding frame portion and the thickness of the glass plate is set to be 1 mm or more. The packaging spacer of the glass plate according to claim 1.

[3] The glass plate packaging spacer according to [1] or [2], wherein the base frame part and the protruding frame part are formed of cardboard containing cellulose fiber as a component.

[4] The glass plate packing box according to any one of claims 1 to 3, wherein the base frame portion and the protruding frame portion are formed separately and fixed with an adhesive. Pasa.

[5] The glass plate packaging space according to any one of claims 1 to 4, wherein the protruding frame portion protrudes only from an upper side portion and left and right side portions of the base frame portion. Sa.

[6] A packaging unit in which a plurality of glass plate packaging spacers according to any one of claims 1 to 5 are vertically arranged, and each glass plate is interposed between the packaging spacers. In the state where the outer peripheral edge of the glass plate is along the surface of the inner peripheral region of the base frame portion in each packing spacer and the outer peripheral edge of the glass plate is surrounded by the inner surface of the protruding frame portion, Packaging of a glass plate, wherein the surface of the projecting frame portion of one adjacent packaging spacer and the back surface of the base frame portion of the other packaging spacer are brought into contact with each other via a protective sheet New

7. The glass plate packaging unit according to claim 6, wherein the protective sheet is a slip sheet.