TWI763928B - Glass plate package body - Google Patents

Abstract

The present invention provides a glass plate package capable of preventing breakage of the glass plate and preventing positional displacement of the laminated body with respect to the support surface of the shelf. A glass plate package (1) is provided with: a laminate (4) formed by laminating a plurality of glass plates (2) with a protective sheet (3) interposed therebetween in a horizontal position; and a shelf (5), It has a support surface (7u) for supporting the laminated body (4), wherein a cover piece (6) covering the laminated body (4) from above is provided, and the cover piece (6) has a cover piece (6) protruding from the upper surface of the laminated body (4). end (6e), the end (6e) is held on the shelf (5).

Description

glass plate packaging

The present invention relates to a glass plate package.

For example, as one of the packaging methods of various glass plates including glass substrates for flat panel displays (hereinafter, also referred to as FPDs) such as liquid crystal displays, plasma displays, and organic EL displays, there is a method of packaging many glass plates by using the support surface of the shelf. A package in which a protective sheet is sandwiched between two sheets of glass plates and a laminate is supported in a horizontal position.

In such a glass plate package, when the position of the laminate relative to the support surface of the shelf is shifted during transportation, etc., there is a possibility that damage to the glass plate or the like may occur. Even in the case of acceleration/deceleration, vibration, etc., the laminated body is accurately held at a predetermined position on the support surface of the shelf.

In order to meet such a demand, for example, Patent Document 1 discloses a glass plate package in which a pressing plate is arranged on the outermost surface layer portion of a laminated body laid flat on a shelf, and on the pressing plate, both sides facing the laminated body are arranged on the pressing plate. The two pressing rods protruding from the side are fastened by pulling the both ends of the pressing rods toward the shelf side (support surface side) by the fastening member. [Prior Art Literature]

[Patent Document] [Patent Document 1] Japanese Patent Laid-Open No. 2009-202900

PROBLEM TO BE SOLVED BY THE INVENTION However, if the laminated body is to be reliably pressed against the support surface of the shelf only by the pressing force of the pressing lever like the package disclosed in Patent Document 1, the pressing force of the pressing lever must be increased. Furthermore, the pressing force of the pressing lever tends to act intensively on a narrow range of the laminated body corresponding to the arrangement position of the pressing lever. Therefore, stress concentration tends to occur in the glass plate included in the laminated body, and the glass plate may be damaged.

The technical subject of this invention is to provide the glass plate package which can prevent the damage of a glass plate, and can prevent the positional displacement of a laminated body with respect to the support surface of a shelf. [Technical means to solve the problem]

The present invention made in order to solve the above-mentioned problems provides a glass plate package including: a laminated body formed by laminating a plurality of glass plates in a horizontal position with a protective sheet interposed therebetween; and a shelf having a support A supporting surface of a laminated body, the glass plate packaging body is characterized in that the glass plate packaging body is provided with a cover sheet covering the laminated body from above, the cover sheet has an end portion protruding from the upper surface of the laminated body, and the end portion holds on the shelf. In this way, since the entire or substantially entire surface of the upper surface of the laminated body is firmly pressed by the cover sheet to the support surface side of the shelf, the positional displacement of the laminated body can be prevented. At this time, since the range where the pressing force of the cover sheet acts extends over a wide range of the upper surface of the laminate, stress concentration is not easily generated in the glass sheet, and breakage of the glass sheet can be prevented. Here, the "flat posture" includes not only a horizontal posture, but also a posture slightly inclined from the horizontal posture (for example, a posture in which the inclination angle with respect to the horizontal is within 30°).

In the above-mentioned structure, it is preferable that a pressing member for pressing the side surface of the laminated body is provided on the shelf.

When providing a pressing member, it is preferable that the edge part of a cover piece is pinched|interposed between the side surface of a laminated body and a pressing member.

In the above structure, preferably, the cover sheet is formed of an antistatic sheet.

In the above-mentioned structure, it is preferable that the corners of the laminated body are not covered by the cover sheet and are exposed.

In the above-mentioned structure, the end portion of the cover sheet may cover the entire thickness of the laminated body on the side surfaces of the laminated body other than the corner portions.

In the above-mentioned configuration, the end portion of the cover sheet covering either of the adjacent side surfaces of the laminate may have an identification portion.

In the above-mentioned configuration, a pressing rod having both ends protruding from the upper surface of the laminated body may be provided on the upper side of the laminated body covered by the cover sheet, and the glass plate package may be provided with the pressing rod A fastening member that pulls and fastens both ends of the rack toward the support surface side of the shelf. [Effect of invention]

As mentioned above, according to this invention, the glass plate package which can prevent the damage of a glass plate and can prevent the positional shift of the laminated body with respect to the support surface of a shelf can be provided.

Hereinafter, embodiments of the present invention will be described based on the drawings.

(1st Embodiment) As shown in FIGS. 1 and 2 , the glass plate package 1 according to the first embodiment is provided with a protective sheet between a plurality of (for example, about 100 to 400) glass plates 2. 3. A laminated body 4 stacked in a horizontal position (substantially horizontal position); a shelf 5 supporting the laminated body 4; and a cover sheet 6 covering the laminated body 4 from above.

The rack 5 includes a support table 7 , and supports the laminated body 4 by a support surface (upper surface) 7 u of the support table 7 .

The glass plate 2 and the protective sheet 3 are rectangular, and the protective sheet 3 is larger than the glass plate 2 . In a state where the glass plate 2 and the protective sheet 3 are stacked, the protective sheet 3 is extended over the entire circumference of the glass plate 2 . That is, the peripheral edge part 4r (refer FIG. 3) of the laminated body 4 is formed only by the protective sheet 3 which protrudes around the glass plate 2. The width of the peripheral edge portion 4 r (the extension dimension of the protective sheet 3 ) can be set to, for example, 20 mm to 80 mm.

The size (vertical x horizontal) of the glass plate 2 can be, for example, 1000 mm×1000 mm to 3000 mm×3000 mm, and the thickness of the glass plate 2 can be, for example, 0.05 mm to 10 mm, preferably 0.05 mm to 0.7 mm. The protective sheet 3 is formed of, for example, a foamed resin sheet or a backing paper.

The cover piece 6 covers the entire or substantially the entire surface of the upper surface 4u (refer to FIG. 3 ) of the laminated body 4 , and has an end portion 6e protruding outward from the upper surface 4u of the laminated body 4 in four directions. Each end portion 6 e protruding from the upper surface 4 u of the laminated body 4 is bent along each side surface 4 s (see FIG. 3 ) of the laminated body 4 , and is held by the shelf 5 . In this way, the entire or substantially entire surface of the upper surface 4u of the laminated body 4 is firmly pressed by the cover sheet 6 to the support surface 7u side of the support base 7 of the shelf 5, so that the positional displacement of the laminated body 4 can be prevented. In addition, at this time, the range where the pressing force of the cover sheet 6 acts is spread over the entire surface or substantially the entire surface of the upper surface 4u of the laminated body 4 . Therefore, stress concentration does not easily arise in the glass plate 2, and the breakage of the glass plate 2 can be prevented.

The cover sheet 6 can be formed of, for example, a rubber sheet, a vinyl sheet, a soft plastic sheet, or the like. The cover sheet 6 which can be formed of such a material is preferably an antistatic sheet having conductivity. If it is an antistatic sheet, it is difficult for dust to adhere to the cover sheet 6 due to static electricity. Therefore, the glass plate package 1 does not easily bring dust into a space where cleanliness is required, such as a clean room.

The four corners of the cover sheet 6 are cut obliquely, and the four corners 4c of the laminate 4 are exposed from the cut and removed portion of the cover sheet 6 . Here, the corner portion 4c means a region including a portion where the adjacent two side surfaces 4s of the laminated body 4 come into contact with each other. In this way, even if the cover sheet 6 is not removed, the positional displacement of the protective sheet 3 and the glass plate 2 can be confirmed from the outside through the corners 4 c of the laminated body 4 . Specifically, for example, when the positional displacement of the glass plate 2 does not occur, the glass plate 2 cannot be visually recognized from any corner portion 4c, and only the protective sheet 3 is exposed. On the other hand, for example, when the glass plate 2 is displaced in position, the glass plate 2 is exposed from between the protective sheets 3 at one of the corners 4c. By visually confirming the exposed glass plate 2 , the occurrence of positional displacement of the glass plate 2 can be confirmed through the corners 4 c of the laminate 4 . In addition, all four corners 4c of the laminated body 4 may be covered with the cover sheet 6, and in this case, it is preferable that the cover sheet 6 is transparent.

In the present embodiment, the cover sheet 6 covers the entire thickness of the laminated body 4 on the side surfaces 4 s of the exposed laminated body 4 excluding the corners 4 c. In this case, it is preferable that the side (lower end) of the end portion 6e of the cover piece 6 is positioned below the support surface 7u of the support base 7 of the shelf 5 . In this way, substantially the entire side surface 4s of the laminated body 4 is covered by the cover sheet 6, so that dust does not easily penetrate into the interior from the side surface 4s of the laminated body 4 (eg, the gap between the protective sheets 3). Therefore, since it is difficult for dust to adhere to the glass plate 2, the cleanliness of the glass plate 2 can be maintained reliably.

In this embodiment, the side of the edge part 6e of the cover sheet 6 located in the long side of the laminated body 4 has the wave-shaped non-linear part 6w. In this way, it is possible to easily confirm the orientation of the laminated body 4 (for example, the distinction between the long side and the short side of the laminated body 4 ) using the non-linear portion 6 w as an identification portion. It should be noted that instead of the edge portion 6e of the cover sheet 6 located on the long side of the laminated body 4 having the non-linear portion 6w, the edge portion 6e of the cover sheet 6 located on the short side of the laminated body 4 may be The side has a non-linear portion 6w. In addition, the non-linear portion 6w is not limited to a wave shape, and may be a shape that can be distinguished from a linear shape. The identification portion may be formed by applying a mark or color to the end portion 6e of the cover sheet 6 instead of the non-linear portion 6w.

The plate-shaped pressing member 8 which presses the side surface 4s of the laminated body 4 is detachably attached to the side surface of the support base 7 of the rack 5 by fastening a connection member, such as a screw 9. A plurality of pressing members 8 are distributed and arranged so as to surround the four sides of the laminated body 4 . Thereby, the lateral displacement with respect to the square outer side of the laminated body 4 is prevented. In addition, it is preferable that the pressing member 8 is removed from the rack 5 during the lamination operation of the glass plate 2 and the protective sheet 3 so as not to interfere with the operation, and is preferably attached to the rack 5 after the lamination operation is completed.

As shown in FIG. 3 , in the present embodiment, the end portion 6e of the cover piece 6 is held by the shelf 5 in a state of being sandwiched between the side surface 4s of the laminated body 4 and the pressing member 8 . That is, the inner surface of the edge part 6e of the cover piece 6 contacts the side surface 4s of the laminated body 4, and the outer surface of the edge part 6e of the cover piece 6 contacts the pressing member 8. In this way, the holding of the end portion 6e of the cover piece 6 and the release of the holding can be easily performed. Here, as described above, in the present embodiment, the peripheral portion 4r of the laminated body 4 is formed only of the protective sheet 3 without including the glass plate 2, and the peripheral portion 4r has a sufficiently large width. Therefore, even if the side surface 4s of the laminated body 4 is pressed by the pressing member 8 via the end portion 6e of the cover sheet 6, the overhanging portion of the protective sheet 3 exhibits a sufficient buffer effect, and the glass plate 2 is not damaged.

It should be noted that, as shown in FIG. 1 , pillars (prisms) 10 for supporting the same racks stacked on the upper stage are erected detachably at the four corners of the upper surface of the rack 5 , and these pillars 10 A convex portion 10p that fits into a concave portion formed in the lower surface portion of the upper shelf is protrudingly provided on the upper end surface of the rack. Like the pressing member 8 , the support column 10 is preferably detached from the rack 5 during the lamination operation of the glass plate 2 and the protective sheet 3 , and attached to the rack 5 after the lamination operation is completed.

(Second Embodiment) As shown in FIG. 4 , the glass plate package 1 according to the second embodiment is different from the glass plate package 1 according to the first embodiment in that, in addition to the cover sheet 6 , A pressing mechanism for pressing the laminated body 4 toward the support surface 7u side of the support base 7 of the shelf 5 is additionally provided. Hereinafter, the pressing mechanisms of different structures will be mainly described, and the detailed description of the common structures will be omitted.

The pressing mechanism of the glass plate package 1 includes: a pressing plate 21 arranged on the upper surface 4u of the laminated body 4 covered by the cover sheet 6; The pressing rods 22; and the four fastening members 23 that pull and fasten both end portions 22e of the pressing rods 22 toward the support surface 7u side of the shelf 5.

The pressing plate 21 is a rectangular plate material with higher rigidity and higher strength than the glass plate 2 , and is formed of, for example, a plastic corrugated plate (a hollow structural plate made of a resin such as polypropylene) or the like.

The pressing rod 22 is a linear square bar made of steel, aluminum, or the like with high rigidity and strength. The pressing rods 22 are arranged on the upper surface 21u of the pressing plate 21 in a state where two are arranged in parallel. Both end portions 22e of the two pressing rods 22 protrude from the laminated body 4 .

The fastening member 23 is a rod-shaped or tubular rod-shaped body (may be a plate-shaped body) made of high tensile strength steel, aluminum, or the like. The base end portion (lower end portion) of the fastening member 23 is supported by the shelf 5 , and the distal end portion (upper end portion) is detachably attached to both end portions 22 e of the pressing rod 22 . The fastening member 23 extends in a direction perpendicular to the support surface 7u of the rack 5 . In this case, each fastening member 23 is configured to be able to adjust the length of the distance from the attachment portion attached to the pressing rod 22 to the support surface 7u. The structure for this length adjustment is not particularly limited, and for example, a male thread is formed on the distal end portion of the fastening member 23 and the distal end portion is passed through the through holes 22h formed in the both end portions 22e of the pressing rod 22. , and can variably adjust the fastening position of the nut member screwed with the male thread of the distal end portion protruding upward from the through hole 22h, or the support portion of the fastening member 23 that supports the shelf 5 can be moved up and down And make a fixed structure, etc. It should be noted that, it is preferable that the fastening member 23 can be detached or detached relative to the shelf 5 or can be tilted to a position lower than the supporting surface 7u of the supporting table 7 of the shelf 5, so as to avoid the contact between the glass plate 2 and the protective sheet 3. When stacking work, it becomes a hindrance to the work.

Even if the pressing mechanism using the pressing lever 22 is provided in this way, the pressing force of the pressing lever 22 can be reduced as much as possible because the laminated body 4 is already pressed toward the support surface 7u side by the cover sheet 6 . Therefore, even if the pressing lever 22 is used, the glass plate 2 is not easily damaged. From the viewpoint of more reliably preventing breakage of the glass plate, it is preferable to press the laminated body 4 toward the support surface 7u side of the support base 7 of the shelf 5 only by the cover sheet 6 as in the first embodiment. On the other hand, from the viewpoint of more reliably preventing positional displacement of the laminated body 4 , as in the second embodiment, it is preferable to provide a pressing mechanism using a pressing lever 22 to assist pressing by the cover sheet 6 .

In addition, this invention is not limited to the structure of the above-mentioned embodiment, nor is it limited to the above-mentioned effect. In the present invention, various modifications can be made without departing from the gist of the present invention.

The method of holding the cover sheet 6 on the shelf 5 is not particularly limited. For example, a male member may be provided on one of the cover sheet 6 and the shelf 5, and a female member may be provided on the other, and these male members and female members may be engaged with each other. As such an engaging structure between the male member and the female member, for example, a hook and an engaging hole for engaging with it, a male and female hook and loop fastener, and the like can be mentioned. Moreover, you may bind the edge part 6e of the cover piece 6 to the shelf 5 with a belt-shaped member. In such a case, since the cover sheet 6 can be held by the rack 5 even if the pressing member 8 is not present, the pressing member 8 can be omitted.

The support surface 7u of the support base 7 of the rack 5 is not limited to the horizontal plane, and may be inclined with respect to the horizontal plane.

A stretch film or a bag may be wound around the glass plate package 1 . In this way, when conveying or the like, dust does not easily penetrate from the outside. The stretched film and the bag are preferably formed of a transparent resin such as nylon.

You may provide the accommodating part which accommodates the pressing member 8 and the support|pillar 10 when not in use, such as the inside of the support base 7 of the shelf 5. In this case, it is preferable to provide a door capable of closing the accommodating part at the entrance of the accommodating part.

1‧‧‧Glass plate package 2‧‧‧Glass plate 3‧‧‧Protective sheet 4‧‧‧Laminated body 4c‧‧‧Corner part 4r‧‧‧Peripheral part 4s‧‧‧Side surface 4u‧‧‧Top surface 5 ‧‧‧Shelf 6‧‧‧Cover 6e‧‧‧End 6w‧‧‧Non-straight part 7‧‧‧Supporting platform 7u‧‧‧Supporting surface 8‧‧‧Pressing member 9‧‧‧Screw 10‧‧‧ Column 10p‧‧‧Protrusion 21‧‧‧Pressing plate 21u‧‧‧Top surface 22‧‧‧Pressing rod 22h‧‧‧Through hole 22e‧‧‧ Both ends 23‧‧‧ Fastening member

1 : is a perspective view which shows the glass plate package which concerns on 1st Embodiment. 2 is an exploded perspective view showing the glass plate package according to the first embodiment. FIG. 3 is a cross-sectional view for explaining a manner of holding a cover piece on a shelf in the glass plate package of FIG. 1 . It is a perspective view which shows the glass plate package which concerns on 2nd Embodiment.

1‧‧‧Glass plate packaging

4‧‧‧Laminate

4c‧‧‧Corner

5‧‧‧Shelves

6‧‧‧Cover

6e‧‧‧End

6w‧‧‧non-linear part

7‧‧‧Support table

8‧‧‧Pressing member

9‧‧‧Screw

10‧‧‧Pillars

10p‧‧‧Protrusion

Claims (7)

A glass plate package comprising: a laminated body formed by laminating a plurality of glass plates in a flat posture with a protective sheet interposed therebetween; and a shelf having a support surface for supporting the laminated body, wherein The glass plate package is characterized by comprising a cover piece covering the laminate from above, the cover piece having an end portion protruding from an upper surface of the laminate, and the end portion is held by the shelf, The corners of the laminate are exposed without being covered by the cover sheet. The glass plate package according to claim 1, wherein a pressing member for pressing a side surface of the laminate is provided on the shelf. The glass plate package according to claim 2, wherein the end portion of the cover sheet is sandwiched between the side surface of the laminate and the pressing member. The glass plate package according to any one of claims 1 to 3, wherein the cover sheet is formed of an antistatic sheet. The glass plate package according to claim 4, wherein the end portion of the cover sheet covers the entire thickness of the laminate on the side surfaces of the laminate except for the corner portion. The glass plate package as described in any one of items 1 to 3 of the scope of the application, wherein, The said edge part which covers one of the adjacent side surfaces of the said laminated body of the said cover sheet has an identification part. The glass plate package according to any one of claims 1 to 3, wherein both ends are provided on the upper side of the laminate covered by the cover sheet from the laminate A pressing rod protruding from the upper surface of the glass plate package is provided with a fastening member that pulls and fastens both end portions of the pressing rod toward the support surface side of the shelf.

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