CN112119022A

CN112119022A - Glass roll package body and manufacturing method thereof

Info

Publication number: CN112119022A
Application number: CN201980032279.2A
Authority: CN
Inventors: 森弘树; 秋山修二; 石田直也
Original assignee: Nippon Electric Glass Co Ltd
Current assignee: Nippon Electric Glass Co Ltd
Priority date: 2018-05-15
Filing date: 2019-05-09
Publication date: 2020-12-22
Anticipated expiration: 2039-05-09
Also published as: DE112019002441T5; JP7256968B2; JPWO2019220997A1; KR20210008492A; TWI799579B; WO2019220997A1; TW201946853A; CN112119022B

Abstract

A glass roll package (10) is provided with: a glass roll (11) obtained by winding a glass film (G) in a roll shape around a winding core (16); and a case (13) having a pair of support portions (12, 12) that support both axial side portions (16b ) of the winding core (16) that are not covered with the glass film (G), and accommodating the glass roll (11) in a state in which both axial side portions (16b ) of the winding core (16) are supported by the pair of support portions (12, 12). The glass roll (11) is supported by a pair of support sections (12, 12) in a state where the entire glass roll (11) is covered with the bag body.

Description

Glass roll package body and manufacturing method thereof

Technical Field

The invention relates to a glass roll packing body and a manufacturing method thereof.

Background

As is well known, in recent years, further thinning has been required for various glass plates represented by glass substrates for flat panel displays such as liquid crystal displays, plasma displays, organic EL displays, and field emission displays. Therefore, in view of this demand, development of a so-called glass film which is thinned into a film shape is advanced, and for example, a glass film having a thickness of 200 μm or less is developed.

As a method for packaging the glass film, a glass roll in which the glass film is wound around a winding core in a roll shape is being used. Such a packaging method has attracted attention as a packaging method suitable for a glass film because of various advantages such as focusing on flexibility of the glass film and saving space.

In addition, since such glass products (glass films) are required to have high surface quality (e.g., cleanliness) depending on the application, it is necessary to prevent contamination of the glass roll, such as adhesion and corrosion of foreign matter, when the glass films are packed and conveyed in the form of glass rolls.

Here, for example, patent document 1 discloses a glass roll packaging container as follows, which is characterized by comprising: a box body, wherein a containing chamber for containing the glass roll is formed inside the box body; a cover member which is mounted on the opening of the box body and seals the containing chamber; and a humidity adjustment unit for adjusting the humidity of the storage chamber, wherein the storage chamber is adjusted to a dry state by the humidity adjustment unit after the storage of the glass roll.

Prior art documents

Patent document

Patent document 1: japanese patent laid-open No. 2014-80203

Disclosure of Invention

Problems to be solved by the invention

In this way, according to the packaging container described in patent document 1, since the housing chamber of the glass roll provided inside the box can be made in a sealed state, it is possible to effectively prevent the entry of the outside air, and further, it is possible to effectively prevent the adhesion of foreign matter entering the box together with the outside air to the glass film. However, as described in patent document 1, when the inside of the box is to be sealed, the structure of the packaging container including the box becomes complicated. This is not preferable because the production cost of the packaging container may increase.

In view of the above circumstances, a technical object to be solved by the present invention is to provide a glass roll package body which has a simple structure and can prevent contamination of a glass roll.

Means for solving the problems

The above object is achieved by the glass roll package of the present invention. Namely, the package body has: a glass roll obtained by winding a glass film around a winding core in a roll shape with both axial side portions of the winding core exposed; and a box body which has a pair of supporting parts for supporting both axial side parts of the winding core and accommodates the glass roll in a state of being supported by the pair of supporting parts, wherein the glass roll is supported by the pair of supporting parts in a state that the whole glass roll is covered by the bag body.

In this way, in the package body of the present invention, since the entire glass roll is covered with the bag body in the state of being housed in the box body, the glass film wound in a roll shape can be protected from the outside air by only taking up the glass roll and housing it in the bag body to make the bag body cover the entire glass film wound in a roll shape. This makes it possible to prevent the glass film from being exposed to the outside air and prevent foreign matter from adhering to the glass film more easily than in the conventional case. Of course, since only the bag body needs to be prepared, the glass film can be protected from the outside air at low cost, for example, as compared with a case having a sealed structure.

In the package body of the present invention, the glass roll is supported by the pair of support portions in a state where the entire glass roll is covered with the bag body as described above, and therefore, for example, the glass roll can be easily packed in the box body in the following procedure. That is, the entire glass roll is housed in a bag provided in the case in advance, and both axial side portions of the winding core are placed on the pair of support portions. Then, the bag body is sealed. Thus, the glass roll is accommodated in the case, and the entire glass roll is supported by the pair of support portions in a state of being covered with the bag. As described above, according to the present invention, the glass roll can be packed in the box with relatively few man-hours. Further, when the glass roll is taken out, it is sufficient to open the casing and take out the glass roll together with the winding core, and therefore the glass roll can be easily taken out from the casing.

In the glass roll package of the present invention, the bag body may have one opening.

In this case, the opening portion of the bag body is formed in a shape corresponding to the shape of the roll body, and the opening portion of the bag body is formed in a shape corresponding to the shape of the roll body.

In the glass roll package of the present invention, flanges may be attached to both axial side portions of the winding core, respectively, and the flanges may face the entire width-direction end face of the glass film with a predetermined gap therebetween. Here, the width direction refers to a direction along the winding center of the glass film.

By providing the flanges on both axial side portions of the winding core in this manner, for example, when the entire glass roll moves in the width direction, the case can be reliably prevented from coming into contact with the end face of the glass film in the width direction, and the end face can be reliably prevented from being damaged.

In the case of the flange having the above-described structure, in the glass roll package of the present invention, the bag may cover both the entire glass roll and the flange.

Not only the glass roll composed of the roll core and the glass film but also the flange attached to the roll core is entirely covered by the bag body, so that the flange restricts the movement of the bag body to the glass roll, and a certain space can be formed between the outer peripheral surface of the glass roll and the bag body. This can reliably prevent the glass film from being contaminated or damaged due to unnecessary contact between the bag body and the glass roll.

In the glass roll package of the present invention, the gap between the flange and the support portion may be set so that the flange and the support portion come into contact with each other to prevent the glass roll from falling from either support portion due to movement in the width direction.

By setting the gap between the flange and the support portion in this manner, even if the glass roll is displaced in the width direction during conveyance, the flange restricts movement of the glass roll in the width direction at a predetermined position, and therefore, it is possible to reliably prevent the one axial side portion of the winding core from falling from the one support portion.

In the glass roll package of the present invention, the support portion may be divided into a lower support portion for supporting the lower side of the outer peripheral surface of the core and an upper support portion for supporting the upper side of the outer peripheral surface of the core, and the upper support portion may be supported to be rotatable about a predetermined rotation axis so as to be movable between a support position of the core and a retracted position separated from the support position.

In this way, by providing the structure in which the support portion is divided vertically, the winding core of the glass roll can be easily placed on or separated from the support portion. In this case, the upper support portion is supported so as to be rotatable about the predetermined rotation axis, and the upper support portion can be easily moved between the support position and the retracted position of the winding core. Therefore, when loading the glass roll, first, the upper support portion is retracted from the space above the lower support portion (i.e., the support position of the winding core), and after the glass roll is placed, the upper support portion is rotated around a predetermined rotation axis to abut on the upper side of the outer peripheral surface of the winding core. Then, by fixing the upper support portion to the lower support portion, the winding core can be easily sandwiched and fixed by the upper and lower support portions. In addition, when the glass roll is taken out, the glass roll can be lifted up and taken out from the inside of the casing only by first rotating the upper support portion about the rotating shaft and withdrawing from the space above the lower support portion. In summary, according to the support portion having the above configuration, the glass roll can be efficiently loaded or unloaded.

In the glass roll package of the present invention, the case may include a frame and a plurality of plate-like bodies, and the plurality of plate-like bodies may be formed as an outer wall of the case and may be detachably attached to the frame.

In this way, by providing the structure in which the plate-like body forming the outer wall of the casing is detachably attached to the frame of the casing, the accessibility to the glass roll in the state of being accommodated in the casing can be improved. That is, the winding core supported by the support portion provided in the frame can be accessed from the side of the box body by removing the plate-like body, and therefore the winding core can be easily lifted up and the glass roll can be taken out. Of course, when the glass roll is loaded, the winding core of the glass roll is placed on the support portion in a state where the plate-like body located outside the support portion is removed, and the glass roll can be easily wound and stored in the case.

In the case where the case includes the frame and the plurality of plate-like bodies, in the glass roll package of the present invention, the pair of support portions may be constituted by a part of the frame, and the insertion portion into which the plate-like bodies can be inserted may be provided at a position outside the support portions of the frame.

In this way, if the pair of support portions is formed by a part of the housing, the box can be further simplified, which contributes to the compactness. Further, by providing the insertion portion into which the plate-like body can be inserted at a position outside the support portion of the housing, the plate-like body can be easily attached to and detached from the housing. This can further improve the workability of loading and unloading the glass roll.

The above object is achieved by the method for manufacturing a glass roll package according to the present invention. That is, the manufacturing method is characterized by including the steps of: winding the glass film around the winding core in a roll shape with both axial side portions of the winding core exposed to produce a glass roll; a bag body is arranged in the box body with a pair of supporting parts for supporting two axial side parts of the winding core; placing the both axial side portions of the winding core on the pair of support portions while accommodating the entire glass roll including the both axial side portions of the winding core in the bag body; and sealing the bag body.

As described above, according to the method of manufacturing a package body of the present invention, as in the package body described above, the glass film wound in a roll shape is entirely covered with the bag body by simply winding the glass into the bag body, and the glass film can be protected from the outside air. This makes it possible to prevent the glass film from being exposed to the outside air and prevent foreign matter from adhering to the glass film more easily than in the conventional case. Of course, since only the bag body needs to be prepared, the glass film can be protected from the outside air at low cost as compared with a case having a sealed structure. Further, the entire glass roll is housed in a bag provided in the case in advance, and both axial side portions of the winding core are placed on the pair of support portions, and then the bag is sealed, whereby the glass roll is housed in the case, and the entire glass roll is supported by the pair of support portions in a state of being covered with the bag. Therefore, according to the present invention, the glass roll can be packed and packed inside the box body with relatively few man-hours. Further, when the glass roll is taken out, it is sufficient to open the casing and take out the glass roll together with the winding core, and therefore the glass roll can be easily taken out from the casing.

Effects of the invention

As described above, according to the present invention, a glass roll package body having a simple structure and capable of preventing contamination of a glass roll can be manufactured.

Drawings

Fig. 1 is an exploded perspective view of a glass roll package according to an embodiment of the present invention.

Fig. 2 is a top view of the glass roll package shown in fig. 1.

Fig. 3 is a side view of the glass roll package shown in fig. 1.

Fig. 4 is an exploded perspective view of the glass roll shown in fig. 1.

Fig. 5 is an enlarged sectional view of the support portion shown in fig. 2.

Fig. 6 is a view for explaining an example of a method of manufacturing the glass roll package shown in fig. 1, and is a perspective view showing a state before the glass roll is stored.

Fig. 7 is a view for explaining an example of a method of manufacturing the glass roll package shown in fig. 1, and is a perspective view showing a state in which glass is wound and accommodated in the bag body.

Fig. 8 is a view for explaining an example of a method of manufacturing the glass roll package shown in fig. 1, and is a perspective view showing a state in which an opening of a bag body in a state in which a glass roll is housed is sealed.

Fig. 9 is a view for explaining an example of a method of manufacturing the glass roll package shown in fig. 1, and is a perspective view showing a state in which a core of a glass roll accommodated in the bag body is held by a support portion.

Fig. 10 is a view for explaining an example of a method of manufacturing the glass roll package shown in fig. 1, and is a perspective view showing a state in which a plate-like body is attached to a side portion of a frame body.

Detailed Description

An embodiment of the present invention will be described below with reference to fig. 1 to 10.

Fig. 1 is an exploded perspective view of a glass roll package 10 according to the present embodiment, fig. 2 is a plan view of the same glass roll package 10, and fig. 3 is a side view of the same glass roll package 10. As shown in these figures, the glass roll package 10 includes: a glass roll 11; a box 13 having a pair of

support portions

12, 12 for supporting the glass roll 11 and accommodating the glass roll 11; and a bag body 14 covering the entire glass roll 11. In the present embodiment, the glass roll package 10 further includes a pair of

flanges

15 and 15 attached to the glass roll 11.

Here, as shown in fig. 4, the glass roll 11 to be packed is obtained by winding a long glass film G around a winding core 16, and in the present embodiment, the glass film G is wound in a roll shape in a state where it is overlapped with the buffer sheet 17 on the outer peripheral surface of the winding core 16.

For example, as shown in fig. 4, the winding core 16 is formed in a hollow cylindrical shape having a hole portion 16 a. The axially

opposite side portions

16b and 16b of the winding core 16 are exposed in a state where the glass film G is wound in a roll shape, and correspond to portions protruding in the width direction of the glass film G from both ends in the width direction of the glass film G wound in a roll shape when the observation mode is changed. The winding core 16 is not limited to the hollow cylindrical shape illustrated in the drawing, and may be, for example, a solid cylindrical shape.

The material of the winding core 16 may be any material as long as it has no problem in terms of strength, and for example, a metal such as aluminum alloy, stainless steel, manganese steel, or carbon steel; thermosetting resins such as phenol resin, urea resin, melamine resin, unsaturated polyester resin, epoxy resin, polyurethane, diallyl phthalate resin, and the like; the material of the winding core 16 is, for example, thermoplastic resin such AS polyethylene, polypropylene, polystyrene, AS resin, ABS resin, methacrylic resin, or vinyl chloride, or reinforced plastic or paper obtained by blending these thermosetting resin or thermoplastic resin with reinforcing material such AS glass fiber or carbon fiber.

The glass film G is formed by, for example, the overflow downdraw method, and the thickness dimension is set to be in the range of 1 μm to 200 μm (preferably 10 μm to 100 μm). The reason why the thickness is set to be in this range is because, if the thickness is in this range, appropriate flexibility and strength can be imparted to the glass film G, and no trouble is caused during winding.

The dimension of the glass film G in the width direction is set to, for example, 100mm or more, preferably 300mm or more, more preferably 500mm or more, and still more preferably 1000mm or more. The glass film G is used in a variety of devices from a small-screen display such as a small-sized mobile phone to a large-screen display such as a large-sized television receiver, and therefore, the width-directional dimension of the glass film G is preferably selected appropriately depending on the size of the substrate of the device to be used.

As the glass composition of the glass film G, various glass compositions such as silica glass, silicate glass such as borosilicate glass, and the like can be used, but alkali-free glass is preferably used depending on the application. This is because, when the glass film G contains an alkali component, a phenomenon called "alkali extraction" occurs, and a part of the glass film G becomes structurally thick, and when the glass film G is bent, breakage may occur from the structurally thick part due to aged deterioration. In addition, when the glass film G contains an alkali component, the thin film formed on the surface may have impaired properties when the glass film G is used for glass substrate applications. The alkali-free glass as used herein means a glass containing substantially no alkali component, and specifically means an alkali metal oxide of 3000ppm or less (preferably 500ppm or less, more preferably 300ppm or less).

From the viewpoint of protecting the glass film G, the cushion sheet 17 is wound around the winding core 16 in a state of being overlapped with the glass film G, and is interposed between the glass films G in a state in which the winding is completed (the state shown in fig. 1 and 4). At this time, the cushion sheet 17 is disposed so as to cover the entire front and back surfaces (first main surface and second main surface) of the glass film G, thereby protecting the entire front and back surface area of the glass film G. From the viewpoint of protecting the glass film G, it is preferable that the buffer sheet 17 is positioned on the innermost diameter side and the outermost diameter side of the roller portion 11a in a state where the winding of the glass film G around the winding core 16 is completed. From the same viewpoint, it is preferable that the cushion sheet 17 protrude from both end surfaces in the width direction of the glass film G. Of course, both end faces in the width direction of the cushion sheet 17 may be aligned at the same positions in the width direction as both end faces in the width direction of the glass film G, or the glass film G may be protruded from both end faces in the width direction of the cushion sheet 17.

The thickness dimension of the cushion sheet 17 is preferably 10 μm or more from the viewpoint of sufficiently obtaining the cushion effect, and is preferably 2000 μm or less from the viewpoint of preventing an improper expansion of the roller portion 11a of the glass roll 11.

The cushion sheet 17 is basically made of any material, and for example, interleaving paper, nonwoven fabric, or the like can be used. In addition to the above-exemplified materials, resin sheets made of resins such as ionomer, polyethylene terephthalate, polypropylene, polyvinyl chloride, polyvinylidene chloride, polyvinyl alcohol, polyester, polycarbonate, polystyrene, polyacrylonitrile, ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, ethylene-methacrylic acid copolymer, nylon (polyamide), polyimide, cellophane, and the like can be used. From the viewpoint of ensuring both cushioning performance and strength, it is preferable to use a foamed resin sheet made of a foamed resin such as polyethylene as the cushion sheet 17. In addition, from the viewpoint of improving the sliding property with the glass film G, it is preferable to use a resin sheet in which silica or the like is dispersed in the above-described resin as the cushion sheet 17. In this case, the resin sheet has slidability, whereby the displacement occurring between the glass film G and the cushion sheet 17 can be absorbed.

In the present embodiment, a pair of

flanges

15 and 15 are attached to a winding core 16 of the glass roll 11. These

flanges

15, 15 are attached to both

axial side portions

16b, 16b of the winding core 16, and face the widthwise end faces of the glass film G over the entire area thereof (see fig. 2). That is, the outer diameter of the flange 15 is larger than the outer diameter of the roll portion 11a formed by winding the glass film G around the winding core 16. In the present embodiment, each flange 15 faces the end face of the glass film G in the width direction with a predetermined gap therebetween.

Each flange 15 may be, for example, a disk-shaped integral member, but in the present embodiment, as shown in fig. 4, each flange is constituted by a first divided plate 15a and a second divided plate 15b formed in a half disk shape. In this case, the pair of

flanges

15, 15 formed in a disk shape as a whole are fixed to the outer periphery of the winding core 16 by connecting the first split plate 15a and the second split plate 15b by, for example, bolt fastening, in a state where the

first split plate

15a, 15a and the

second split plate

15b, 15b of each flange 15 sandwich the respective

axial side portions

16b, 16b of the winding core 16, respectively.

In the present embodiment, the outer peripheral surface of the winding core 16 is formed in a shape having a constant outer diameter dimension for the purpose of reducing the processing cost, but for the purpose of accurately positioning the flange 15 with respect to the axial direction of the winding core 16, for example, although not shown, a step may be provided on the outer peripheral surface of the winding core 16 and the step may be brought into contact with the flange 15 in the axial direction.

The case 13 is formed in a substantially rectangular parallelepiped shape as a whole, and in the present embodiment, includes a frame 18 and a plurality of plate-like bodies 19, and the plurality of plate-like bodies 19 form an outer wall of the case 13 and are attached to the frame 18 so as to be detachable (see fig. 1). In this case, the glass roll 11 and the bag body 14 are housed in the case 13. Further, the frame 18 is provided with a pair of support portions 12, and the glass roll 11 housed inside the casing 13 is supported by these pair of

support portions

12, 12.

More specifically, as shown in fig. 3, the pair of

support portions

12 and 12 support both

axial side portions

16b and 16b of the winding core 16. At this time, as shown in fig. 5, both

axial side portions

16b, 16b of the winding core 16 are supported by the pair of

support portions

12, 12 via the bag body 14.

Here, in the present embodiment, as shown in fig. 3, each support portion 12 is divided into a lower support portion 20 that supports the lower side of the outer peripheral surface of each axial side portion 16b and an upper support portion 21 that supports the upper side of the outer peripheral surface of each axial side portion 16 b. The upper support portion 21 is supported so as to be rotatable around a predetermined rotation shaft 22 provided on the housing 18, and thereby the upper support portion 21 can be moved between a position above the lower support portion 20 (i.e., a support position of the core 16 shown in fig. 3) and a retracted position (see fig. 1) separated from the support position.

In the present embodiment, the lower support portion 20 is formed by deforming a part of the frame 18, and the support surface 20a of the lower support portion 20 is formed by a pair of inclined surfaces that approach each other as they go downward (see fig. 3). In the present embodiment, the upper support portion 21 has a curved portion formed in a substantially semi-annular shape independently of the frame 18, and the support surface 21a of the upper support portion 21 is formed by the inner peripheral surface of the curved portion formed in the semi-annular shape. In this case, the axial side portion 16b of the core 16 to be supported can be sandwiched from the top-bottom direction in a state where the upper support portion 21 is moved upward of the lower support portion 20 by being rotated about the rotation shaft 22 (see fig. 3).

The gap g1 between each flange 15 and the frame 18 is set to a predetermined size or less (see fig. 2 and 5), and when the pair of

flanges

15, 15 is attached to the winding core 16 of the glass roll 11, the flange 15 and the support portion 12 (here, the lower support portion 20) are in contact with each other, thereby preventing the glass roll 11 from falling from the support portion 12 due to movement in the width direction. In other words, the gap g1 is set to a prescribed magnitude or less so that the axial side portion 16b of the winding core 16 remains on the support portion 12 at the side opposite to the moving direction even if the glass roll 11 moves in the width direction by the amount of the gap g 1. The gap g2 (see fig. 2) between the flange 15 on the opposite side and the frame 18 is set to a predetermined size or less for the same reason. Since the gaps g1 and g2 function as play when the glass roll 11 is stored in the box 13, it is preferable to set the gaps g1 and g2 to be large or small to some extent from the viewpoint of the ease of assembly.

In the present embodiment, an insertion portion 23 (see fig. 1 to 3) into which the plate-like body 19 can be inserted downward is provided on the outer side of the support portion 12 of the frame 18. The insertion portion 23 is formed in a groove shape, for example, and is fitted to the bottom 19a and the pair of side edges 19b and 19b of the inserted plate-like body 19. Needless to say, the insertion direction of the plate-like body 19 is not limited to the lower direction. For example, the insertion portion 23 may be configured to be attached to a position forming an outer wall of the case 18 by sliding the plate-like body 19 in the vertical posture in the horizontal direction, and illustration thereof is omitted.

In the present embodiment, the bag body 14 has the opening 24 at one position, and as shown in fig. 1, the opening 24 can be disposed so as to face upward in a state of being housed in the box body 13. The opening 24 has a size enough to allow the glass roll 11 with the pair of

flanges

15, 15 attached to both

axial side portions

16b, 16b of the winding core 16 to be inserted therethrough. In this case, as shown in fig. 1, the size and shape of the opening 24 are preferably set to such an extent that the glass roll 11 can be inserted in a posture in which the width direction of the glass roll 11 (the longitudinal direction of the winding core 16) is substantially horizontal.

As shown in fig. 2 and 3, the bag body 14 configured as described above accommodates the entire glass roll 11 including both the

axial side portions

16b and 16b of the winding core 16. In the present embodiment, the entire glass roll 11 including the pair of

flanges

15 and 15 is housed inside the bag body 14. In this case, the opening 24 (see fig. 1) of the bag body 14 is sealed above the glass roll 11, in other words, a sealing portion 25 formed by sealing the opening 24 is formed above the glass roll 11. In this case, the flange 15 and the bag member 14 may be brought into contact with each other, or may be brought into active contact with each other, so that the bag member 14 is locally stretched to secure a distance between the bag member 14 and the outer peripheral surface of the roll portion 11a of the glass roll 11 (see fig. 5).

In the present embodiment, the case 13, which houses all of the glass roll 11, the pair of support portions 12, the bag body 14, and the pair of

flanges

15, 15 configured as described above, further includes a lid portion 26 (see fig. 1). The lid 26 has fitting recesses 26a that open downward at four corners of the lid 26, and the lid 26 seals the case 13 by fitting the lid to the fitting projections 18a that project from the upper four corners of the case 18.

Hereinafter, an example of a method of manufacturing the glass roll package 10 having the above-described configuration, in other words, an example of a method of loading the glass roll 11 into the case 13 will be described with reference to fig. 6 to 10.

First, as shown in fig. 6, a frame 18 of the box 13 is prepared, and the bag 14 is provided inside the frame 18. At this time, the bag 14 is disposed so that the opening 24 of the bag 14 faces upward. At this point (at a point before the glass roll 11 is loaded), the plate-like body 19 is in a removed state. In this case, in order to facilitate introduction of the glass roll 11 into the bag body 14, which will be described later, the edge 24a of the opening 24 may be folded back outward as shown in fig. 6.

Then, for example, as shown in fig. 4, a long glass film G is wound around a winding core 16 together with a cushion sheet 17, a glass roll 11 is prepared in which a pair of

flanges

15, 15 are attached to both

side portions

16b, 16b in the axial direction of the winding core 16, and the prepared glass roll 11 is introduced into the bag body 14 through the opening 24 (see fig. 7). At this time, the entire glass roll 11 including the axial both

side portions

16b, 16b is introduced into the bag body 14 so that the axial both

side portions

16b, 16b of the winding core 16 are placed on the pair of

support portions

12, 12 with the bag body 14 interposed therebetween (the state shown in fig. 5).

In this way, after the glass roll 11 is introduced into the bag body 14, the opening 24 of the bag body 14 is closed. As a result, as shown in fig. 8, the entire glass roll 11 including the pair of flanges 15 and the

axial side portions

16b and 16b of the winding core 16 is covered with the bag body 14, and is shielded (sealed) from the outside air. In this case, the sealing portion 25 of the bag body 14 is formed above the glass roll 11.

In the present embodiment, as described above, after the entire glass roll 11 is accommodated in the bag body 14 and the opening 24 is closed, the upper support 21 is rotated about the rotating shaft 22 and moved upward of the lower support 20 (see fig. 3). Then, the upper support portion 21 is fixed to the lower support portion 20 by bolt fastening or the like, thereby sandwiching the both

axial side portions

16b, 16b of the winding core 16. Accordingly, the two

axial side portions

16b and 16b of the winding core 16 are supported by the support surface 20a of the lower support portion 20 through the bag 14 and are supported by the support surface 21a of the upper support portion 21 through the bag 14 (see fig. 9).

Then, the four plate-like bodies 19 are inserted into the insertion portion 23 of the frame 18 from above to below. Thereby, the four corners of the glass roll 11 are covered with the plate-like bodies 19 (see fig. 10).

Finally, the lid 26 is fitted into the upper portion of the frame 18, thereby completing the glass roll package 10.

As described above, according to the glass roll package 10 of the present invention, the entire glass roll 11 including both

axial side portions

16b and 16b of the winding core 16 is covered with the bag body 14 in a state of being accommodated in the case 13. Therefore, by simply housing the glass roll 11 in the bag body 14, the glass film G wound in a roll shape is entirely covered with the bag body 14, and the glass film G can be protected from the outside air. Thus, when the glass film G is exposed to the outside air, it is possible to prevent foreign matter from adhering more easily than in the prior art. Of course, since only the bag body 14 needs to be prepared, the glass film G can be protected from the outside air at low cost, for example, as compared with the case 13 processed into a sealed structure.

In the method of manufacturing the package of the glass roll 11 according to the present embodiment, the entire glass roll 11 is housed in the bag body 14 provided in the case 13 with the opening 24 facing upward, and the both

axial side portions

16b, 16b of the winding core 16 are placed on the pair of

support portions

12, 12. Then, the opening 24 of the bag body 14 is closed. Thus, the glass roll 11 can be accommodated in the case 13 and supported by the pair of

support portions

12 and 12 in a state where the entire glass roll 11 is covered with the bag body 14. Thus, according to the method of manufacturing the package, the glass roll 11 can be packed in the case 13 with a small number of steps. Further, when taking out the glass roll 11, the case 13 is opened, and the glass roll 11 is taken out together with the winding core 16 regardless of whether the bag body 14 is in an open state or a closed state, so that the glass roll 11 can be easily taken out from the case 13.

In the present embodiment, a bag body 14 having one opening 24 (see fig. 1) is used. If the opening 24 is provided at one location, the entire glass roll 11 is accommodated in the bag body 14, and then only one location is sealed, which facilitates the work. Further, if the opening 24 is sealed at a position separated from the winding core 16, the labor of binding around the winding core 16 and sealing can be omitted, and thus the work is also easy. In particular, as in the present embodiment, by providing the lid portion 26 above the box 13 and the sealing portion 25 above the glass roll 11, the opening 24 can be easily sealed without interference from the surroundings, and the operation of unsealing the bag body 14 can be immediately performed from above by removing the lid portion 26 when the glass roll 11 is taken out at the delivery destination.

Further, as in the present embodiment, the case 13 includes the frame 18 and the plurality of plate-like bodies 19, and the plurality of plate-like bodies 19 are attached to the frame 18 so as to be detachable from the outer wall of the case 13, and in this case, the accessibility to the glass roll 11 in a state of being housed in the case 13 can be improved (japanese character: アクセス property). That is, by removing lid 26 and removing plate-like body 19, core 16 supported by

support portions

12 and 12 provided in frame 18 can be directly accessed from the side of case 13. This makes it possible to easily lift the winding core 16 and take out the glass roll 11 from the box 13 and the bag 14.

In addition, in the present embodiment, since the pair of

flanges

15, 15 facing the entire region of the width-direction end face of the glass film G with a predetermined gap therebetween are attached to the both

axial side portions

16b, 16b of the winding core 16, even if the entire glass roll 11 moves in the width direction, for example, the contact between the width-direction end face of the glass film G and the support portion 12 can be reliably avoided, and the breakage of the end face can be reliably prevented. At this time, by covering both the entire glass roll 11 and the pair of

flanges

15 and 15 with the bag body 14, the flanges 15 regulate the movement of the bag body 14 toward the roller portion 11a, and a certain space can be formed between the outer peripheral surface of the roller portion 11a and the bag body 14 (see fig. 5). This can reliably prevent the glass film G from being contaminated or damaged due to unnecessary contact between the bag body 14 and the glass roll 11.

While one embodiment of the present invention has been described above, the glass roll package and the method of manufacturing the same according to the present invention are not limited to the above embodiment, and various embodiments can be adopted within the scope of the present invention.

For example, in the above-described embodiment, the case where the bag body having one opening 24 is disposed as the bag body 14 in the box 13 is exemplified, but the bag body 14 having an opening other than the above-described opening may be adopted. For example, a bag body having two or more openings 24 may be used, and illustration thereof is omitted. The form of the bag body 14 having the one-point opening 24 is also arbitrary, and a bag body 14 having a known form such as a bottom seal type, a side seal type, a three-side seal type, a pillow type (a type in which one film is sealed back to form a cylindrical shape and one opening is sealed), a gusset (japanese patent application No. ガゼット) type, or the like can be used. Alternatively, the bag body 14 may be formed by packing a sheet-like body. The glass roll 11 may be placed on a sheet-like body such as a resin film, and the glass roll 11 may be surrounded by the film so as to cover the entire glass roll 11. In the above embodiment, the bag body 14 is disposed in the box 13 in advance with the opening 24 facing upward, and the glass roll 11 is introduced from above and the entire glass roll 11 is covered with the bag body 14. For example, a member obtained by previously storing the entire glass roll 11 in the bag body 14 may be stored in the box body 13. In this case, the opening 24 of the bag body 14 may be sealed and then stored in the box body 13. The point is that, as long as the both

axial side portions

16b, 16b of the winding core 16 are supported by the pair of

support portions

12, 12 in a state where the entire glass roll 11 including the both

axial side portions

16b, 16b of the winding core 16 is covered with the bag body 14, the form of the bag body 14 and the manner of housing the glass roll 11 by the bag body 14 may be arbitrary.

In the above-described embodiment, the case where the support surface 20a of the lower support portion 20 is formed of a pair of inclined surfaces that approach each other as they approach downward is exemplified (see fig. 3), but it is needless to say that the support surface 20a may adopt other forms than the above-described form. In this case, whether the outer peripheral surface of the axial side portion 16b of the winding core 16 is in point contact or surface contact is not particularly limited. While the support surface 20a of the lower support portion 20 has been described above, the support surface 21a of the upper support portion 21 may be formed in any manner. For example, the support surface 21a of the upper support portion 12 may be formed by a pair of inclined surfaces, as in the case of the support surface 20a of the lower support portion.

In the above embodiment, the axial side portion 16b of the winding core 16 is sandwiched and fixed from above and below by the lower support portion 20 and the upper support portion 21, which are vertically divided, but the present invention is not limited to this. For example, if the upward floating of the glass roll 11 is restricted by a structure other than the support portion 12, the support portion 12 may be constituted by only the lower support portion 20 that supports the lower side of the outer peripheral surface of the winding core 16, and illustration thereof is omitted.

In the above embodiment, the case where the both

axial side portions

16b, 16b of the winding core 16 are directly supported by the pair of

support portions

12, 12 has been exemplified, but the present invention is not limited to this embodiment. The present invention also includes a mode in which both

axial side portions

16b, 16b of the winding core 16 are supported by the pair of

support portions

12, 12 via the flange 15.

Description of reference numerals:

10 glass roll package body

11 glass roll

11a roller part

12. 12 support part

13 case body

14 bag body

15. 15 Flange

16 roll core

16a hole part

16b, 16b on both axial sides

17 buffer sheet

18 frame body

19 plate-like body

20 lower support part

21 upper side support part

22 rotating shaft

23 insertion part

24 opening part

24a edge

25 sealing part

26 cover part

G glass film

g1, g2 gaps.

Claims

1. A glass roll package body is provided with:

a glass roll obtained by winding a glass film around a winding core in a roll shape with both axial side portions of the winding core exposed; and

a case having a pair of support portions for supporting both axial side portions of the winding core and accommodating the glass roll in a state of being supported by the pair of support portions,

wherein,

the glass roll is supported by the pair of support portions in a state where the entire glass roll is covered with the bag body.

2. The glass roll package of claim 1,

the bag body is provided with an opening part.

3. The glass roll package of claim 1 or 2,

flanges are attached to both axial side portions of the winding core, and the flanges face the entire width-direction end face of the glass film with a predetermined gap therebetween.

4. The glass roll package of claim 3,

the bag covers both the entire glass roll and the flange.

5. The glass roll package of claim 3 or 4,

the gap between the flange and the support portion is set so that the flange and the support portion are in contact with each other to prevent the glass roll from falling from either of the support portions due to movement in the width direction.

6. The glass roll package of any of claims 1 to 5,

the support portion is divided vertically, and includes a lower support portion that supports a lower side of an outer peripheral surface of the winding core, and an upper support portion that supports an upper side of the outer peripheral surface of the winding core, and the upper support portion is supported so as to be rotatable about a predetermined rotation axis, and is movable between a support position of the winding core and a retracted position separated from the support position.

7. The glass roll package of any of claims 1 to 6,

the box body has a frame body and a plurality of plate-like bodies which form an outer wall of the box body and are detachably attached to the frame body.

8. The glass roll package of claim 7,

the pair of support portions are formed by a part of the frame, and an insertion portion into which the plate-like body can be inserted is provided on the outer side of the frame than the support portions.

9. A method for manufacturing a glass roll package body, wherein,

the manufacturing method of the glass roll package body comprises the following steps:

winding a glass film around a winding core in a roll shape with both axial side portions of the winding core exposed, thereby producing a glass roll;

a bag body is provided inside a case body having a pair of support portions for supporting both axial side portions of the winding core;

placing the entire glass roll including both axial side portions of the winding core in the bag body and placing both axial side portions of the winding core on the pair of support portions; and

and sealing the bag body.