KR101919629B1 - Winding device and storing device for sheet glass - Google Patents

Abstract

The present invention relates to a winding core in which a strip-shaped thin plate glass having a thickness of 0.3 mm or less is wound in a roll together with a cushioning material in a roll form is mounted on the outer peripheral portion, And a pressing unit for pressing the flange is attached to a part of the winding core on an end face side of the rolled body, to a winding apparatus for a thin plate glass.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a winding device for a thin plate glass,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding device for winding and holding a thin plate glass in a roll form and a receiving device for accommodating and transporting the winding device.

In the case of manufacturing a liquid crystal panel used as a display device in a mobile terminal such as a small information terminal device or a mobile phone, a circuit for display is formed on a glass substrate having a thickness of 0.7 mm, Is reduced by wet etching to reduce its thickness to about 0.3 mm.

However, it is expected that liquid crystal panels for this type of display device will be manufactured using thin plate glass having a thickness of about 0.1 mm. If the thin plate glass having a thickness of about 0.1 mm is used for a display device, it can be assumed that the manufacturing process of the display panel is renewed.

For example, since the thin plate glass having the above-described thickness can be wound in a roll shape on the winding core, when the glass substrate is transported from a factory for manufacturing glass to a factory for manufacturing a display panel, It is possible to convey the film in a roll state as a roll-shaped glass, instead of a single-type transport. Therefore, in the manufacturing factory of the display panel, the thin plate glass brought into the production line in the state of the roll-shaped glass is cut into a desired size and put into the production process of the display panel.

The roll-shaped glass described above has a structure in which a strip-shaped thin plate glass is wound around the outer peripheral surface of the winding core. Particularly, the thin plate glass has a weak strength on the end surface and traces such as a cut- , It is necessary to provide a flange on the winding core to protect the end portion of the thin plate glass in order to protect the end surface of the thin plate glass.

Conventionally, as a technique for winding a thin sheet glass of this kind into a roll core in the form of a roll, there has been conventionally used a glass roll wrapped around a winding core in a state that a glass film is overlapped with a buffer sheet, There is known a structure in which a flange is provided and a buffer means is disposed between the flange and the end portion in the width direction of the glass film. (See Patent Document 1)

Japanese Patent Application Laid-Open No. 2010-132348

In the technique described in the above-mentioned Patent Document 1, the buffer sheet is pushed out from the end portion in the width direction of the glass film at the portion between the width direction end portion of the glass film and the flange, and the pushed- And the end portion of the glass film is protected by arranging it between the flanges so that the wind-up operation and the take-out operation of the glass film can be performed smoothly.

However, in the structure in which the buffer sheet is pushed out to the portion between the width direction end portion of the glass film and the flange to make it a buffering means, since there is a wide gap between the end portion in the width direction of the glass film and the flange, The end face of the glass film may be displaced due to vibration or shock, and the end portion of the glass film may collide with the flange, which may cause scratches on the end face of the glass film.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a winding device for winding a thin glass plate around a winding core, which eliminates the possibility of collision of the thin plate glass with the flange during transportation and reduces the risk of leaving traces on the thin glass plate. And an object of the present invention is to provide a winding device and a device for accommodating the winding device.

That is, the present invention relates to the following (1) to (11).

(1) A winding core in which a strip-shaped thin plate glass having a plate thickness of 0.3 mm or less is wound on a roll together with a band-shaped cushioning material,

And a flange provided on both longitudinal ends of the winding core

Wherein the sheet-like glass is wound around the sheet-

And a pressing unit for pressing the flange is attached to an end face of the rolled body on a part of the winding core.

(2) at least one of the flanges is formed in the shape of a donut plate and inserted in the outer periphery of the winding core, and is provided so as to be movable in the longitudinal direction of the winding core, (1) according to any one of claims 1 to 3, wherein a lock unit is provided which is fixed by being locked at a position to be pressed against the sheet glass.

(3) The winding device for a thin film glass according to (2), wherein the locking unit comprises a base fixed to the peripheral wall through a through hole formed in a peripheral wall of the winding core, and fastening the flange.

(4) The thin plate glass according to (3), wherein the projection is made of a slit extending in the longitudinal direction of the peripheral wall of the winding core, and the engagement position of the flange is defined by the fixed position of the base with respect to the slit .

(5) One flange is fixed to one end of the winding core, and the length from the position of the one flange to the other end of the winding core is formed to be substantially equal to the length of the rolled body, (1) in which the other flange provided on the other end side of the winding core is pressed against the side of the roll body end by a present chord formed with tension on the inside of the winding core Winding device for sheet glass.

(6) One flange is fixed to one end of the winding core, a threaded portion is formed on the outer periphery of the other end of the winding core, the flange is formed in a donut shape having a threaded portion on the inner peripheral portion, And the flange is provided so as to be movable in the longitudinal direction of the winding core by screwing the threaded portion of the inner peripheral portion of the flange to the threaded portion on the other end side.

(7) The winding apparatus of the thin-film glass according to any one of (1) to (6), wherein the thin-film glass is an alkali-free glass having the following composition in percentage of mass percentage based on oxide:

50 to 66% of SiO ₂ ,

Al ₂ O ₃ : 10.5 to 24%

B ₂ O ₃ : 0 to 12%,

MgO: 0 to 8%

CaO: 0 to 14.5%,

SrO: 0 to 24%,

BaO: 0 to 13.5%

MgO + CaO + SrO + BaO: 9 to 29.5%, and

ZrO ₂ : 0 to 5%.

(8) The winding apparatus for a thin plate glass according to any one of (1) to (6), wherein the thin plate glass is an alkali-free glass having the following composition in percentage by mass on the basis of oxide:

58 to 66% of SiO ₂ ,

Al ₂ O ₃ : 15 to 22%

B ₂ O ₃ : 5 to 12%

MgO: 0 to 8%

CaO: 0 to 9%,

3 to 12.5% of SrO,

BaO: 0 to 2% and

MgO + CaO + SrO + BaO: 9 to 18%.

(9) box-shaped receptacle body,

An openable and closable door formed in a part of the receiving portion main body, and

(1) to (8), which is accommodated in the accommodating portion main body so as to be able to move in and out through the door,

And a receiving device for receiving the sheet glass.

(10) A receiving device for thin plate glass according to (9), wherein a slit-like outlet for taking out the thin plate glass fed from the winding device is formed in a part of the outer wall of the receiving portion main body.

(11) A receiving apparatus for a thin plate glass as set forth in (10), wherein a cleaning member for cleaning the front and back surfaces of the strip-shaped thin plate glass passing through the outlet is provided inside the outlet port forming portion of the receiving portion main body.

According to the present invention, it is possible to constitute a rolled body by winding a thin sheet glass having a thickness of 0.3 mm or less, which is susceptible to damage to an end face thereof, around a winding core, and holding flanges on both ends of the rolled body, It is possible to provide a winding device capable of carrying a long thin plate glass while safely and compactly holding it. Further, when the flanges are pressed and held on both ends in the width direction of the roll of the thin plate glass, the end faces of the thin plate glass constituting the roll body can be reliably held by the flange, so that collision or contact between the thin plate glass can be prevented So that it is possible to provide a winding device capable of safely carrying thin plate glass.

The present invention can provide a receiving apparatus capable of receiving and storing the previous winding apparatus safely and carrying it safely and reliably taking out the thin plate glass from the winding apparatus.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing the entire configuration of a winding device according to a first embodiment of the present invention; Fig.
Fig. 2 is a perspective view showing a state in which the winding device is supported on a base. Fig.
3 is a cross-sectional view showing the overall configuration of a winding device according to a second embodiment of the present invention.
4 is a side view of the winding device.
5 is a cross-sectional view showing an overall configuration of a winding device according to a third embodiment of the present invention.
6 is a side view of the winding device.
7 is a cross-sectional view showing an overall configuration of a winding device according to a fourth embodiment of the present invention.
8 is a partial cross-sectional view showing an example of a state in which a thin plate glass is wound around a winding core.
Fig. 9 is a schematic plan view of the cushioning member wound around the thin plate glass shown in Fig. 8; Fig.
10 is a partial cross-sectional view showing another example of a state in which a thin plate glass is wound around a winding core.
11 is a perspective view showing an overall configuration of a first example of a receiving apparatus according to the present invention.
12 is a partial cross-sectional view showing an example of the internal configuration of the receiving apparatus of the first embodiment;
13 is a rear view showing a configuration around the dispensing opening in the receiving apparatus;
14 (a) is a perspective view of a cleaning member provided on the upper side of the air outlet, FIG. 14 (b) is a perspective view of a portion supporting the cleaning member Fig.
15 is a perspective view showing an overall configuration of a second example of a receiving apparatus according to the present invention;
16 is a perspective view showing another example of the internal configuration of a receiving apparatus according to the present invention;

≪ First Embodiment >

Hereinafter, a first embodiment of the winding device according to the present invention will be described with reference to the accompanying drawings, but the present invention is not limited to the embodiments described below.

Fig. 1 shows a sectional structure of a winding apparatus according to a first embodiment of the present invention. The winding apparatus 1 according to the present embodiment includes a metallic cylindrical winding core 2, Like flanges 3 and 3 made of metal and attached to the both ends in the lengthwise direction of the main body. The rolled body 4 is formed by winding a thin sheet glass G together with a buffering sheet (buffering material) not shown in the longitudinal direction central portion of the winding core 2, and both ends in the longitudinal direction of the rolled body 4 are engaged with left and right flanges (3, 3).

The constituent material of the winding core 2 and the flange 3 is not particularly limited and includes a metal material having high strength such as stainless steel, manganese steel, carbon steel or aluminum alloy.

Since the winding core 2 winds and holds the strip-shaped thin plate glass G having a predetermined width, it needs to be strong enough not to be deformed by the pressure of winding the thin plate glass G. The outer circumferential surface of the winding core 2, It is preferable that it is smoothed so as not to be scratched. For example, if the thin plate glass G wound around the winding core 2 has a thickness of 100 m (0.1 mm), a width of 1000 mm and a length of 400 m, the weight is about 100 kg, So that a sufficient strength is required for the winding core 2.

The flange 3 is mounted movably in the longitudinal direction of the winding core 2 by inserting the winding core 2 through the center hole 3a thereof.

A winding region 2a having a width capable of winding a strip-shaped thin plate glass G having a predetermined width is defined in a longitudinally central portion of the winding core 2, and thin glass G is wound around the winding region 2a in multiple layers , And the flange 3 is disposed on both widthwise ends of the winding region 2a. In addition, a plurality of slit-shaped insertion through holes 2b extending to a position slightly outside the position including the position where the flange 3 is disposed are formed at predetermined intervals in the circumferential direction of the winding core 2 .

In these winding cores 2, a locking bolt (base) 5 is provided so as to penetrate the peripheral wall 2A of the winding core 2 in the thickness direction at a portion where the insertion through hole 2b is formed, The head portion 5a of the locking bolt 5 is projected to the outside of the winding core 2 and the nut 6 is screwed to the front end portion 5b of the locking bolt 5 protruded to the inside of the winding core 2 Lt; / RTI >

A retaining ring 7 is externally inserted into the outer periphery of the portion where the insertion through hole 2b is formed in the winding core 2 and is passed through the rotating portion 7a penetrating in the radial direction of the retaining ring 7 The abovementioned locking bolt 5 is inserted. That is, in the example shown in Fig. 1, the locking bolt 5 is inserted through the insertion hole 7a of the locking ring 7 and also through the insertion hole 2b of the winding core 2, And penetrates the peripheral wall 2A of the body 2. The engaging bolts 5 press the retaining ring 7 and the inner end of the retaining ring 7 comes into contact with the flange 3 to push the flange 3 to position the flange 3, The locking bolt 5 and the locking ring 7 constitute a pressing unit and a locking unit of the flange 3 because the locking bolt 5 and the locking ring 7 press the end face of the roll body 4. [

The strip-shaped thin plate glass G wound around the winding core 2 is wound by the necessary number of layers and its outermost circumferential end is locked by the restraining plate 9 attached to the flange 3. This restraining plate 9 is a curved plate of a shape (tapered shape) conforming to the curved surface drawn by the outermost circumferential end of the thin plate glass G and is laid on the left and right flanges 3 and 3. Concretely, a plurality of fitting holes 3b, through which the restraining plate 9 can be inserted, are formed intermittently in the peripheral direction of the flange 3 at a portion near the outer periphery of the inner side surface of the flanges 3, The restraining plate 9 is disposed so as to pass through both of the fitting holes 3b and 3b of the left and right flanges 3 and 3 which are opposed to each other and the restraining plate 9 is disposed at the end of the outermost sheet glass G .

The thin plate glass G has flexibility but is pressed against the outer circumferential surface of the thin plate glass G by the restraining plate 9 so that the thin plate glass G is pressed against the outer peripheral portion of the winding core 2 The roll body 4 can be stably held.

It is preferable that a cushion layer including a soft material be adhered to the back side of the restraining plate 9 so as not to scratch the thin glass plate G. [ A plurality of restraining plates 9 may be arranged along the outer periphery of the flanges 3 and 3 and the outer periphery of the roll body 4 may be pressed at a plurality of positions.

The left and right flanges 3 and 3 inserted into the winding core 2 are pressed from the left and right sides so as to sandwich the roll body 4 including the thin plate glass G therebetween. That is, the flange 3 on the left side of the winding core 2 is pressed at a predetermined pressure on the left end face of the roll body 4 and the flange 3 on the right side of the winding core 2 is pressed against the right side face of the roll body 4 And is pressed at a predetermined pressure on the end face. Therefore, the roll body 4 is locked by the restraining plate 9 in a state sandwiched between the flanges 3, 3 at a predetermined pressure on both sides thereof. Each flange 3 is fixed in a state in which the engagement bolts 5 are prevented from moving along the longitudinal direction of the winding core 2 by the retaining ring 7 fixed to the outer periphery of the winding core 2.

The thin plate glass G has a thickness of 1 to 300 mu m (preferably 10 to 300 mu m) and is flexible. Therefore, if the outer diameter of the winding core 2 is larger than several tens of centimeters, It is possible to wind without hanging. As an example, in the case of applying the thin plate glass G of 0.1 mm, the outer diameter of the winding core 2 can be set to about 800 mm. If the thickness of the thin plate glass G is less than 1 占 퐉, the strength tends to become insufficient and handling becomes difficult. When the thickness of the thin plate glass G exceeds 300 占 퐉 (0.3 mm), the flexibility becomes insufficient, Must be made larger than the size that can be transported.

The glass composition of the thin plate glass G is not particularly limited. Therefore, any of alkali-free glass, soda lime glass, mixed alkali-base glass or borosilicate glass or other glass may be used. Further, the application of the thin plate glass G to be applied is not limited to the flat panel display, the building use, the vehicle use, or the use thereof, and various other uses.

Further, as a glass suitable for the thin plate glass G, alkali-free glass having the following composition can be used for the mass percent based on oxide.

SiO ₂ : 50 to 66%, Al ₂ O ₃ : 10.5 to 24%, B ₂ O ₃ : 0 to 12%, MgO: 0 to 8%, CaO: 0 to 14.5%, SrO: 0 to 24% : from 0 to 13.5%, MgO + CaO + SrO + BaO: 9 to 29.5%, ZrO _2: 0 to 5%.

As a glass suitable for the thin plate glass G, alkali-free glass having the following composition can be used in the mass percent based on oxide.

SiO ₂ : 58 to 66%, Al ₂ O ₃ : 15 to 22%, B ₂ O ₃ : 5 to 12%, MgO: 0 to 8%, CaO: 0 to 9%, SrO: 3 to 12.5% : 0 to 2%, MgO + CaO + SrO + BaO: 9 to 18%.

The cushioning sheet as a cushioning material wrapped around the winding core 2 together with the thin plate glass G is rolled up on the winding core 2 so as to overlap with the thin glass plate G in order to prevent scratches on the thin glass plate G, And the sheet glass G opposed to the direction of the sheet glass G is interposed therebetween.

Specifically, the buffer sheet is disposed so as to cover the entire surface of the front and back surfaces of the thin plate glass G, and protects the entire front and back surfaces of the thin plate glass G. As a result, it is possible to reliably prevent the sheet glass G of each glass layer, which is formed by winding the thin film glass G on the winding core 2, from coming into direct contact with each other and scratching. Even if any one of the sheet glass G of each glass layer on the outer periphery of the winding core 2 breaks, the sheet glass G is sandwiched between the buffer sheets and exists between the flanges 3 and 3 , It is possible to reduce the rate at which the glass powder generated by the breakage is scattered to the outside.

As the buffer sheet, in addition to the woven or nonwoven fabric, there may be used, for example, ionomer films, polyethylene films, polypropylene films, polyvinyl chloride films, polyvinylidene chloride films, polyvinyl alcohol films, polypropylene films, Ethylene-vinyl alcohol copolymer film, ethylene-methacrylic acid copolymer film, nylon film (polyamide film), polyimide film, cellophane, etc. Can be used. In addition, from the viewpoint of simultaneously securing the buffering performance and the strength, it is preferable to use a foamed resin sheet such as a sheet made of a polyethylene foamed resin as the buffering sheet. In addition, silica or the like may be dispersed in these resin sheets to improve slidability with the thin plate glass G. In this case, the slippage occurring between the thin plate glass G and the buffer sheet can be absorbed by its slidability.

Conductivity can be imparted to the buffer sheet. When the thin plate glass G is taken out from the winding core 2, it is difficult to cause adhesion between the thin glass plate G and the buffer sheet due to static electricity, and thus the thin plate glass G and the buffer sheet can be easily peeled off . As a method of imparting conductivity to the buffer sheet, for example, when the buffer sheet is a resin, a method of adding a component imparting conductivity such as polyethylene glycol to the buffer sheet can be mentioned. When the buffer sheet is a laminate, it is possible to include a conductive fiber in the laminate.

Since the end surface of the roll body 4 is sandwiched between the flanges 3 and 3 without the gaps therebetween, the thin film glass G constituting the roll body 4 is held by the flange 3, 3). This prevents the end face of the thin plate glass G from colliding with the flange 3 even when impact or vibration acts on the winding device 2 while the winding device 1 is being transported and the end faces of the thin plate glass G It is possible to provide the winding device 1 capable of conveying the thin plate glass G without leaving any scratches.

Since the flanges 3 and 3 cover the entire end surface of the roll 4 of the thin plate glass G, it is possible to prevent the end surface of the thin plate glass G from being impacted from the outside during transportation, do.

In order to wind the strip-shaped thin glass plate G having the configuration shown in Fig. 1 and to stably support the thin plate glass plate G, a strip-shaped thin plate glass G is manufactured by a glass manufacturing method such as a float method, The rolled body 4 is formed on the outer periphery of the winding core 2 by winding the thin sheet glass G together with the buffer sheet in the winding region 2a of the winding core 2 by a necessary length.

The plurality of fixing bolts 5 provided on the winding core 2 are loosened and the fixing of the flanges 3 and 3 is stopped when the rolled body 4 is formed by winding the thin plate glass G on the winding core 2 The thin plate glass G can be wound around the winding core 2 in a state in which the flange 3 is released from the winding region 2a and separated or the flanges 3 and 3 are removed from the winding core 2. By these operations, when the thin plate glass G is wound around the winding core 2, the thin plate glass G can be safely wound while avoiding interference with the flange 3.

After the winding of the thin plate glass G is completed, the flanges 3 and 3 are moved along the winding core 2 in the longitudinal direction thereof to press the flanges 3 and 3 against the end face of the roll body 4, The retaining ring 7 is fixed to the outer periphery of the winding core 2 by fastening the retaining bolts 5 with both ends of the roll body 4 interposed therebetween under a constant pressure as shown in Fig. So that both ends of the roll body 4 can be held by the flanges 3 and 3. It is preferable to apply a uniform pressure to the flange 3 or 3 against the end face of the roll body 4 by using a pressurizing device such as a cylinder device not shown.

When the flanges 3 and 3 are pressed against the end face of the roll body 4, the position of the end face of the thin plate glass G and the position of the end face of the cushioning sheet are set at substantially the same position, The positional relationship between the end surface position of the buffer sheet and the end surface position of the thin plate glass G will be described later.

The winding apparatus 1 having the structure shown in Fig. 1 can be stably supported by the base 12 made up of the base 10 and the stands 11, 11 having the structure shown in Fig. 2 as an example. The stand 11 is installed upright on the base 10 so as to be spaced apart from the right and left and has both end portions of the winding core 2 placed on a concave bearing portion 11a formed at the upper end of each stand 11 So that the winding device 1 can be supported horizontally.

The winding device 1 can be stably supported on the mount 12 in the winding device 1 supported by the mount 12 shown in Fig. And stable transportation can be realized.

Since the winding device 1 is rotatably held in the state of being supported by the mount 12, the holding plate 9 is removed from the flanges 3 and 3 to rotate the winding core 2, Can be fed by a required length.

When the base plate side of the thin plate glass G is cut after the thin plate glass G is fed by the required length, a thin plate glass G having a required length can be obtained. This thin plate glass G is used as a glass for a display device .

In this embodiment, the pressing plate 9 is provided so as to press the thin plate glass G on the outermost periphery. However, the fitting hole 3b for supporting the pressing plate 9 is not only the outer periphery of the flange 3, And the restraining plate 9 may be reattached to the outermost circumferential position of the thin plate glass G remaining on the side of the winding core 2 after being taken out by a predetermined length. With this configuration, the thin plate glass G remaining on the side of the winding core 2 after the necessary length of the thin plate glass G is taken out is pressed by the suppressing plate 9, the thin plate glass G is stored until the next time of taking out, have.

&Quot; Second Embodiment "

3 and 4 show a cross-sectional structure of a winding device according to a second embodiment of the present invention. The winding device 20 of this embodiment comprises a metallic cylindrical winding core 22, Like flanges 21 and 23 made of metal and attached at right angles to both ends in the longitudinal direction of the flange 21. The roll body 24 is formed by winding a thin sheet glass G together with a cushioning sheet not shown on the outer periphery of the winding core 22. The flanges 21 and 23 are provided on both ends in the longitudinal direction of the roll body 24, .

The winding core 22 of the second embodiment is formed to have a length equal to or slightly shorter than the width of the thin glass plate G. [ A flange 21 is integrally fixed to one end portion (the left end portion in Fig. 3) of the winding core 22, the substantially entire outer periphery of the winding core 22 is a winding region 22a of the thin glass plate G, A flange 23 separate from the winding core 22 is pressed against the opening end of the winding core 22 by the current 25 at the other end (right end in Fig. 3) of the winding core 22.

The winding core 22 and the flange 21 are made of the same material as the winding core 2 and the flange 3 of the first embodiment. In the present embodiment, the winding core 22 and the flange 21 are integrated by fixing means such as welding or adhesion. That is, a donut-shaped flange 21 is fixed to one end face of the cylindrical winding core 22 at right angles, and the center hole 21a of the flange 21 is engaged with the hollow portion of the inside of the winding core 22 (22c).

The flange 23 on the other side of the winding core 22 has the same shape as that of the flange 21 but is different from the flange 23 in that the flange 23 is provided so as to be removable from the winding core 22. A positioning ring member 26 is fixed to the peripheral portion of the center hole 23a on the inner surface side of the flange 23 and the ring member 26 is inserted into the other end of the winding core 22 The flange 23 is positioned with respect to the other end of the winding core 22.

A plurality of ends 25 of the current 25 are attached to the inner peripheral portion of the flange 23 in the circumferential direction and the other end side of the flange 23 is fixed to a plurality of supports 27). Each of the plurality of currents 25 has its one end portion 25a fixed to the inner peripheral portion of the flange 23 and each of the other end portions 25b thereof fixed to the support portion 27, As shown in Fig. 3, the flange 23 is extended so as to extend over the case where the flange 23 is viewed from the side. 3, only the number of the current 25 is drawn, but the number of the current 25 can be set to a required number in accordance with the pressing force required to press the end face of the roll body 24 by the flange 23.

Therefore, if there are a plurality of pieces of the current piece 25 to be installed, any two or more pieces shown in Fig. 3 may be used. The present invention is not limited to the state shown in Fig. 3, but may be arranged at a position along the inner surface of the winding core 22 along the longitudinal direction of the winding core 22, to be.

The current 25 includes a color string such as an elastic cord and is constituted by a member such as a lashing belt or a rope member which can be stretched between two points in a state of applying tension. The flanges 21 and 23 are attached to both sides of the winding core 22 by aligning the center axes of the flanges 21 and 23 with the central axis of the winding core 22.

3, one end portion 25a of each current 25 is fixed to an engagement portion such as a locking pin and a locking protrusion formed on the inner peripheral portion of the flange 23, And one end portion 25a is attached to the flange 23.

3, the means for pressing the flange 21 and the flange 23 on the end face of the roll body 24 is formed by the current 25 ).

Since the length of the winding core 22 is substantially equal to the width of the thin plate glass G, a tensile force is applied to the end portion of the winding core 22 by the current 25 so that the flange 23 is wound around the winding core 22, The flange 23 is pressed against the end face of the roll 24 of the thin glass plate G so that the flanges 21 and 23 can be pressed against the end face of the thin plate glass G, 24 can be stably held.

Since the center holes 21a and 23a of the flanges 21 and 23 communicate with the hollow portion 22c of the winding core 22 in the structure shown in Fig. 3, It is easy to connect the flange 23 and the support 27 to each other.

The winding device 20 of the present embodiment inserts the support rod so as to pass through the center hole 21a of the flange 21 and the center hole 23a of the flange 23, It is possible to support the winding device 20 in a rotatable manner by being supported by a stand 11 of a stand 12 shown in the drawing.

The detailed positional relationship in the case where the end face positions of the flanges 21 and 23 and the thin plate glass G and the end face positions of the buffer sheets interposed therebetween are not aligned at the same height will be described later.

&Quot; Third Embodiment "

5 and 6 show a sectional structure of a winding apparatus according to a third embodiment of the present invention. In the structure of the third embodiment, the same structures as those of the second embodiment are assigned the same reference numerals, Simplify.

The winding device 30 of the present embodiment includes a metal cylindrical winding core 32 and metal flanges 21 and 23 in the form of donut discs attached at right angles to both longitudinal ends of the winding core 32 As a main body. The roll body 34 is formed by winding a thin sheet glass G together with a cushioning sheet not shown on the outer periphery of the winding core 32. The left and right flanges 21 and 23 are provided at both ends in the longitudinal direction of the roll body 34, .

The winding core 32 of the third embodiment is formed slightly longer than the width of the thin glass plate G. [ The flange 21 is integrally fixed to one end portion (the left end portion in Fig. 4) of the winding core 32. The outer peripheral surface of the winding core 32 becomes the winding region 32a of the thin glass plate G, A flange 23 separate from the winding core 32 is pressed against the opening end side of the winding core 22 by the current 25 at the other end (right end in Fig.

A ring-shaped fitting member 21A inserted into the inner peripheral portion of the winding core 32 is provided on the inner peripheral portion of the flange 21 provided at one end side of the winding core 32 in this embodiment. A ring-shaped fitting member 23A inserted into the inner peripheral portion of the winding core 32 is provided on the inner peripheral portion of the flange 23 on the other end side. A plurality of currents 25 having the same constitution as that of the current 25 provided in the second embodiment are attached and the other end 25 of the current 25 is attached to the support 27 attached to the inner periphery of the winding core 32 (25b) is fixed by hanging.

A ring-shaped spacer 35 is fixed to the inner surface of the outer peripheral portion of the flange 23. The spacer 35 is disposed so as to cover the outer periphery of the end portion of the winding core 32 and the flange 23 is wound around the winding core 32 The side face of the spacer 35 is pressed against the end face of the roll body 34 of the thin plate glass G.

The roll body 34 formed by winding the thin plate glass G together with the cushioning material on the outer periphery of the winding core 32 has both end faces of the flange 21 and the spacer 35 of the flange 23 As shown in Fig. That is, the flange 21 is pressed against one end face of the roll body 34, and the spacer 35 of the flange 23 is pressed against the other end face of the roll body 34.

5, the means for pressing the flange 21 and the spacer 35 on the end face of the roll body 34 is the same as that of the present embodiment 25 (see Fig. 5) ).

5, the thin plate glass G having a width narrower than the entire length of the winding core 32 is wound around the outer periphery of the winding core 32 together with the cushioning material to constitute the roll body 34. In the roll body 34, Both ends of the flange 21 can be sandwiched between the flanges 21 and the spacers 35 of the flanges 23 and retained. The force that presses the flange 21 and the spacer 35 on the end face of the thin plate glass G constituting the roll body 34 is equal to the force It can be adjusted appropriately according to the size of Other operational effects are equivalent to those of the winding device 20 of the second embodiment.

5, even when the length of the winding core 32 is different from the width of the thin plate glass G, the thickness of the spacer 35 can be adjusted so that the roll body 34 can be held at both ends The winding device 30 can be provided. For example, in the case where the length of the winding core 32 is constant, a thin plate glass having a width wider than the width shown in Fig. 5 and narrower than the winding core 32, or a thin plate having a width narrower than the width shown in Fig. When the glass is wound around the winding core 32, a plurality of spacers 35 having different thicknesses are prepared, and a spacer having a different thickness is reattached to the inner surface side of the flange 23 in accordance with the width of the thin glass plate G, It is possible to provide a winding device capable of coping with a plurality of thin glass sheets with the use of the winding core 32 having a long length.

&Quot; Fourth embodiment "

Fig. 7 shows a sectional structure of a winding device according to a fourth embodiment of the present invention. In the structure of the fourth embodiment, the same structures as those of the second and third embodiments are assigned the same reference numerals, Simplify.

The winding device 40 of the present embodiment includes a metallic cylindrical winding core 42 and flanges 41 and 43 of metal donut disc shape attached at right angles to both longitudinal ends of the winding core 42 As a main body. A roll body 44 is formed by winding a thin sheet glass G together with a cushioning sheet not shown on the outer periphery of the winding core 42. The left and right flanges 41 and 43 are provided at both ends in the longitudinal direction of the roll body 44, As shown in FIG.

The winding core 42 of the fourth embodiment is formed slightly longer than the width of the thin plate glass G. The flange 41 is integrally fixed to one end portion (the left end portion in Fig. 7) of the winding core 42, the outer peripheral surface of the winding core 42 becomes the winding region 42a of the thin glass plate G, A flange 43, which is separate from the winding core 42, is provided at the other end (the right end in Fig.

The winding core 42 of this embodiment has the threaded portion 42b formed on the outer circumference of the other end and the substantially entire region of the outer circumferential portion of the winding core 42 excluding the threaded portion 42b is wound around the winding region 42a of the thin- Respectively.

The flange 43 is formed by screwing the threaded portion 43a to the threaded portion 42b of the winding core 42. The threaded portion 43a is screwed into the threaded portion 42b of the winding core 42, And is detachably attached to the other end of the winding core 42 in combination. A ring-shaped spacer 46 is provided on the inner surface side of the flange 43 and the flange 43 is screwed to the other end of the winding core 42 so that the spacer 46 is inserted into the end of the roll body 44 of the thin plate glass G Both ends of the roll body 44 are sandwiched between the flange 41 and the spacer 46 so that the roll body 44 is held on the outer periphery of the winding core 42. [ 7 shows a state in which the flange 43 is separated from the threaded portion 42b of the winding core 42 for convenience. However, when the end face of the roll body 44 is pressed by the flanges 41 and 43, The flange 43 is screwed to the threaded portion 42b of the winding core 42. [

The means for pressing the flange 41 and the spacer 46 on the end face of the roll body 44 is the same as that of the flange 43 and the screw portion 42b of the winding core 42, As shown in Fig.

The threaded portion 43a of the flange 43 is fitted to the threaded portion 42b of the winding core 42 and the rod body 44 of the thin plate glass G is fitted together with the flange 41 by the spacer 46, ) Can be stably retained. In the present embodiment, the spacers 46 may be omitted or the inner surface of the flange 43 may be used instead of the spacers 46 to directly press the end surface of the roll body 44. [

Next, the position of the buffer sheet end surface wound around the winding core together with the thin plate glass G in each of the above-described embodiments will be described.

As the sheet glass G and the buffer sheet which are wound around the winding core to form a rolled body, those having the same width can be used as an example. In this case, both ends of the rolled body are pressed and supported by the left and right flanges, so that the thin plate glass G sandwiched between the left and right flanges is protected in a state sandwiched by the left and right flanges during transportation and during transportation, So that the end face of the thin plate glass G does not collide with the flange during transportation, and therefore there is no possibility that the thin plate glass is damaged during transportation.

However, in the case where the sheet glass G and the buffer sheet are long as large-sized water having a width of several meters, the widths of the sheet glass G and the buffer sheet can not be perfectly aligned over their entire length. In this case, when the end face of the thin plate glass G can not be covered with the buffer sheet, there is a risk of causing scratches on the end face of the thin plate glass G. Therefore, the width of the buffer sheet is slightly larger than the width of the thin plate glass G, It is desirable to protect the end surface of the motor.

When the width of the buffer sheet is slightly larger than the width of the thin plate glass G, the flange can not be completely brought into close contact with the thin plate glass G on both end surfaces of the roll formed by winding on the winding core. In this case, 8 and the structure shown in Fig. 9 is preferably adopted.

8 and 9 show a case where the roll body 51 is constituted by winding the buffer sheet 50 and the thin plate glass G together with the winding core 2 according to the first embodiment and the buffer sheet 50 is a thin plate glass G Which is slightly wider than that of the second embodiment.

9, a plurality of slits 50a are formed intermittently in the longitudinal direction of the buffer sheet 50 at both ends in the width direction, and the adjacent slits 50a and 50a are formed in the longitudinal direction of the buffer sheet 50, It is preferable that a protruding piece 50b is formed between the protruded pieces. The length of the protruded piece 50b is set such that the length of the protruding piece 50b protruding from the end face G ₁ of the thin plate glass G is larger than that of the protruding piece 50b when the rolled body 51 is constituted by winding the thin plate glass G and the buffer sheet 50 together. And is substantially equal to the length of the piece 50b. Alternatively, the protruded piece 50b is slightly longer than the length protruding from the end face G ₁ of the thin plate glass G.

The flange 3 is pressed against the end face of the roll body 51 with a predetermined pressing force in a state in which the projecting piece 50b of the cushioning sheet 50 protrudes from the end face G ₁ of the thin plate glass G in the roll body 51 When pressed, the projection piece (50b) a state so as to press the flange 3 to rolche 51, the thin plate glass G end face the G ₁ the buffer sheet 50 of the bending as shown in Fig. 8 It is possible to protect the end face G ₁ of the thin plate glass G by the flange 3 while protecting it with the projecting piece 50b. 8 shows an example of a state in which the flange 3 is pressed with the projecting piece 50b slightly aligned on the upper side. However, when the pressing force of the flange 3 is further raised, the flange 3 The flange 3 presses the roll body 51 as it is in the state of being close to the end face of the thin plate glass G and bending the projecting pieces 50b further upward.

In the state shown in Fig. 8, the flange 3 grasps and holds the roll body 51 from both sides, but on the outer side of the end face G ₁ of the thin plate glass G, the projecting pieces 50b for each of the thin plate glass G are laminated on the thin plate glass G since the compartments separately, and protects the projecting piece (50b) of each sheet of glass G to the end face G ₁ cushioning sheet 50 of the.

If the end of the buffer sheet 50 is pushed out from the end face G ₁ of the thin plate glass G without providing the projecting piece 50b at the end of the buffer sheet 50, The portion of the buffer sheet 50 that is pushed out is deformed into an indefinite state, so that the end face G ₁ of the thin plate glass G may not be protected.

Considering that the thin plate glass G is loosened from the winding core 2 in a state in which the cushioning sheet 50 deformed in the irregular state has a pushed out portion, when the thin plate glass G is fed from the winding core 2 There is a risk of damaging the thin plate glass G because the pushed portion of the buffer sheet 50 deformed by the irregular shape pressed against the flange 3 is caught. In this regard, when a plurality of slits 50a are provided to form the projecting pieces 50b, there is little possibility that the projecting pieces 50b are caught by the flange 3 when the thin plate glass G is fed from the take-up core 2, The thin plate glass G can be smoothly fed out, so that it is possible to eliminate the possibility that the thin plate glass G is damaged during the preparation of the plate.

10 shows a case in which the rolled body 53 is formed by winding the buffer sheet 52 and the thin plate glass G together with the winding core 2 according to the first embodiment and the buffer sheet 52 is made slightly thinner than the thin plate glass G And shows a form of wide width. In this example, the length of the protruding portion 52a of the buffer sheet 52 protruding from the end face G ₁ of the thin glass plate G in the roll body 53 is referred to as the protruding margin length L. [

This protruding margin length L can be set to about 0.5 mm to 10 mm in the present embodiment. This is because if the protruding margin length L is shorter than 0.5 mm, the end surface of the thin plate glass G can not be sufficiently protected. If the protruding margin length L is 10 mm or more, the buffer sheet 52 is caught in the middle of the thin plate glass G, In some cases.

Fig. 11 shows an example of a receiving apparatus for accommodating the winding apparatus according to each of the above-described embodiments. The receiving apparatus 60 has a rectangular bottom wall 61, four side walls Shaped receiving portion main body 65 composed of a pair of side walls 62 and a ceiling wall 63 connected to the upper portions of these side walls 62.

The accommodating portion main body 65 has a structure in which any one of the winding devices 1, 20, 30, and 40 of the previous embodiments is mounted on the base 12, Respectively. Therefore, when the thin plate glass G wound on any one of the winding devices 1, 20, 30, and 40 is a glass having a width of several meters, the thin plate glass G And is formed to have a size capable of accommodating a roll formed by winding.

An opening 62a is formed in one of the side walls 62 and a door 66 for opening and closing the opening 62a is provided on the side wall 62 via a hinge member 67. [ 11, two hinge members 67 are vertically spaced apart from one side end of the side wall 62 and supported by the hinge members 67 so that the door 66 can rotate in the horizontal direction So as to open and close the opening 62a. The width and height of the opening 62a are set such that any one of the winding devices 1, 20, 30 and 40 of the previous embodiments is mounted on the base 12 and the opening 62a And is formed to have a size of several m width that can pass through.

A horizontally elongated slit-shaped outlet port 68 is formed in one of the side walls 62 adjacent to the side wall 62 provided with the door 62a. The width of the outlet 68 is slightly longer than the width of the thin plate glass G wound on the winding device described above.

Cleaning members 70 and 71 including a flexible material are disposed on the side of the side wall 62 on the inner side of the air outlet 68 so as to sandwich the air outlet 68 from above and below. The cleaning members 70 and 71 include soft members for dust removal such as a sponge, a cleaning cloth, and a cleaning cloth, all of which are formed to have a width slightly longer than the entire width of the outlet 68. The cleaning member 70 disposed on the lower side of the air outlet 68 is fixed to the back side of the side wall 62 by means such as adhesion or adhesion. 13 and 14, the horizontal width of the blow-out port 68 and the horizontal width of the cleaning members 70, 71 are shortened and displayed. However, the actual width is not limited to the width of the thin plate glass G used m. < / RTI >

The cleaning member 71 disposed on the upper side of the air outlet 68 is supported by the support frames 72, 72 so that both ends in the width direction thereof are sandwiched between the cleaning members 71 so as to be movable up and down. 14 (b), the support frames 72 and 72 include L-shaped channel members as viewed in a plan view. The support frames 72 and 72 are provided with claw portions 72a are provided on the back side of the side wall 62 toward the center of the air outlet 68 and on both sides of the air outlet 68. A cleaning member 71 is supported between the support frames 72 and 72 near the outlet 68 and a cap member 73 and a cleaning member 71 for covering the upper side of the cleaning member 71 And a weight member 74 of the same shape as the weight member 74 is disposed.

The cover member 73 is formed in a rectangular lid shape capable of covering the upper half of the cleaning member 71 and is attached to the cleaning member 71 so as to cover the upper half of the cleaning member 71. Since the weight member 74 is mounted on the cover member 73, the cleaning member 71 receives a load of the weight member 74 and is pressed to the lower cover member 73 at a constant pressure. 12 and 13 show the cleaning member 71 on the upper side spaced apart from the cleaning member 70 on the upper side of the outlet 68. Figures 12 and 13 show the cleaning member 71 The cleaning member 70 and the cleaning member 71 are spaced apart from each other for convenience in order to display the relationship between the vertical positions of the weight members 74 and 71. However, 71 are pressed against the cleaning member 70.

Any one of the winding devices 1, 20, 30 and 40 of the previous embodiments is mounted on the base 12 and the door 66 is opened to accommodate the base 12 together with the base 12 And the door 66 is closed so that the receiving device 60 can be transported. By conveying the accommodating device 60, the thin plate glass G can be transported in a roll state to a desired location.

In order to take out the thin plate glass G after transporting the accommodating device 60 to a desired place, the thin plate glass G is drawn out from the roll 4 wrapped around the winding device 1 and taken out from the blowing out port 68 It is possible to take out the thin plate glass G of the length.

When the thin plate glass G is taken out from the blow-out port 68, the thin plate glass G is inserted from above and below by the cleaning member 70 and the cleaning member 71 and drawn out to the outside of the blow-out port 68, Can be withdrawn while cleaning. The cleaning members 70 and 71 provided on the upper and lower sides of the air outlet 68 may be omitted when they are attached to the winding device in a sufficiently clean condition that no dust or dirt is adhered to the front and back surfaces of the thin plate glass G . The weight member 74 presses the cleaning member 71 against the cleaning member 70 when the leading end of the thin plate glass G is taken out from the air outlet 68 so that the cleaning member 71 is slightly lifted, It is preferable that a gap is provided between the openings 70 and 71 and the leading end of the thin plate glass G is discharged from the blow-out port 68 through this gap. Thereafter, the cleaning member 71 is lowered by the load of the weight member 74 so as to sandwich the thin plate glass G between the cleaning members 70 and 71. By continuously cleaning the front and back surfaces of the thin plate glass G to be taken out It can be withdrawn.

The thin plate glass G can be transported without being scratched and damaged without fail by transporting the thin plate glass G in units of the accommodating portion main body 65 as in the present embodiment. Further, even if the glass sheet is broken or cracked due to some reason, for example, the sheet glass G of the rolled sheet is broken and the glass is crushed, the glass is broken or the glass is cut, the crushed glass or broken glass fragments, So that no crushed glass or fragments of glass are scattered around the receiving portion main body 65. [

The door 66 of the accommodating portion main body 65 shown in Fig. 11 is provided so as to be openable and closable in the horizontal direction by the hinge member 67. The opening and closing directions of the door 66, There is no problem. The hinge members 67A and 67A are provided on the side of the bottom wall 61 in place of the hinge members 67 and 67 and the lower end of the door 66 is fixed to the hinge members 67 and 67 by the hinge members 67 and 67, It can be attached to the members 67A, 67A and supported so as to be vertically rotatable.

15A and 15B show another example of the accommodating device for accommodating the winding device according to each of the above-described embodiments. The accommodating device 75 of this example includes a rectangular bottom wall 61, And a box-like receiving portion main body 76 including four side walls 62 and a ceiling wall 63 connected to an upper portion of these side walls 62. [ The storage unit main body 76 of this example differs from the storage unit main body 76 of the previous example in that a sliding door 77 is provided on the side wall 62 on which the opening 62a is formed. The other constitution of the receiving portion main body 76 is the same as that of the receiving portion main body 65 of the previous example, so a detailed description of the same portions will be omitted.

The rail members 78 and 79 including the metal frame member on the upper and lower peripheral portions of the surface of the opening portion 62a on the side wall 62 provided with the opening portion 62a in the receiving portion main body 76 of this example And a door 77 is provided between these rail members 78, 79 so as to be slidable.

The receiving device 75 of this example is configured such that any one of the winding devices 1, 20, 30, and 40 of the previous embodiments is attached to the base 12 in the same manner as the receiving device 60 of the previous example, The container 77 can be opened and accommodated in the accommodating portion main body 76 together with the mount table 12 so that the accommodating device 75 can be carried by closing the door 77. [

In the receiving device 75 of this example, an operation effect equivalent to that of the receiving device 60 of the previous example can be obtained.

16 shows an example of a staple suitable for application in the case of accommodating any one of the previous winding devices 1, 20, 30, and 40 in the receiving device 60 or the receiving device 75 of the previous example The base 80 of this example is provided with stands 11 and 11 on the base 10 to support any one of the winding devices 1, 20, 30 and 40 The auxiliary stands 81 and 81 are provided on the base 10 so as to be spaced apart from the stands 11 and 11 and the auxiliary stands 81 and 81 are provided on the base 10, And a take-up roll 82 is rotatably provided between the rollers 81.

16, the thin plate glass G is led out from the roll 4 of the thin plate glass G, the thin plate glass G is taken out from the blow out port 68 and the thin plate glass G is taken out from the thin plate glass The buffer sheet 83 constituted together with the sheet G can be separated from the thin plate glass G and guided to the take-up roll 82 side and taken up on the take-up roll 82 to be separated and removed from the thin plate glass G.

When the thin sheet glass G is taken out from the receiving device 60 or the receiving device 75 as shown in Fig. 16, the buffer sheet 83 is automatically separated toward the take-up roll 82 side, have.

The thin sheet glass G from which the buffer sheet 83 has been separated can be immediately cut to a required size, so that it can be immediately applied to a manufacturing process for a display glass.

The present application is based on Japanese Patent Application No. 2011-157880 filed on July 19, 2011, the contents of which are incorporated herein by reference.

≪ Industrial applicability >

TECHNICAL FIELD The present invention relates to a device capable of securely supporting and transporting a thin plate glass having a thickness of 0.3 mm or less, which is supposed to be applied to a display device such as a liquid crystal display panel, without damaging the thin plate glass. The present invention can be widely applied not only to a thin plate glass for a display device but also to a general accommodation and transportation of thin plate glass for other purposes.

G: Sheet glass
1: winding device
2: winding core
2a: winding area
3: Flange
3a: center hole
3b: Fitting hole
4:
5: Locking bolt (base: pressurizing unit)
7: Mounting ring (pressurizing unit)
9: Suppression plate
10: Base
11: Stand
12: Mounting bracket
20, 30: winding device
21, 23: Flange
21a, 23a: center hole
22, 32: winding core
22a, 32a: winding area
24, 34:
25: Current (pressure unit)
40: retractor
41: Flange
42: winding core
42a: winding area
42b: screw portion (pressurizing unit)
43: Flange
43a: Screw (pressurizing unit)
50: buffer sheet (buffer material)
50a: slit
50b:
51:
52: buffer sheet (buffer material)
53:
52a:
60, 75: Receiving device
62: side wall
62a: opening
65, 76: receiving portion main body
66, 77: Door
68: outlet
70, 71: cleaning member
72: Support frame
74: weight member
78, 79: Rail member
80: bracket
82: Winding roll
83: buffer sheet (buffer material)

Claims (11)

A winding core in which a strip-shaped thin plate glass having a plate thickness of 0.3 mm or less is wound on a roll together with a belt-like cushioning material and is mounted on an outer peripheral portion thereof, and
And a flange provided on both longitudinal ends of the winding core
Wherein the sheet-like glass is wound around the sheet-
A pressing unit for pressing the flange is attached to an end surface of the rolled body at a part of the winding core,
Wherein the pressing unit has the flange pressed against the end face of the thin plate glass of the roll,
A plurality of slits are formed intermittently at both ends in the width direction of the cushioning material in the longitudinal direction of the cushioning material and protruding pieces are formed between adjacent slits, the flanges are pressed against the protruding pieces, and the protruding pieces are bent Wherein the flange is pressed against the end face of the cushioning material
Winding device for sheet glass. The method according to claim 1,
Wherein at least one flange of the flange is formed in a donut shape and inserted through an outer periphery of the winding core and is provided movably in a longitudinal direction of the winding core, And an engaging unit which is engaged and fixed at a position to be pressed against the end face side. 3. The method of claim 2,
Wherein the engagement unit includes a threaded portion fixed to the peripheral wall by penetrating a through hole formed in a peripheral wall of the winding core and hooking and fixing the at least one flange. The method of claim 3,
Wherein the projection includes a slit extending in a lengthwise direction of a peripheral wall of the winding core, and an engagement position of the flange is defined by a fixing position of the base with respect to the slit. The method according to claim 1,
Wherein one flange of the flange is fixed to one end of the winding core and a length from the position of the one flange to the other end of the winding core is formed to be equal to the length of the rolled body, And the other flange of the flange provided on the other end side of the winding core is pressed against the end face of the roll body by a current which is provided with a tension on the inside of the winding core. The method according to claim 1,
One flange of the flange is fixed to one end of the winding core, a threaded portion is formed on an outer circumference of the other end of the winding core, and the other flange of the flange is formed in a donut shape having a threaded portion on an inner peripheral portion And the other flange is provided so as to be movable in the longitudinal direction of the winding core by screwing the threaded portion of the other flange inner peripheral portion to the threaded portion on the other end side of the winding core. 7. The method according to any one of claims 1 to 6,
Wherein said thin-film glass is a non-alkali glass having the following composition in terms of oxide-based mass percentage indication:
50 to 66% of SiO ₂ ,
Al ₂ O ₃ : 10.5 to 24%
B ₂ O ₃ : 0 to 12%,
MgO: 0 to 8%
CaO: 0 to 14.5%,
SrO: 0 to 24%,
BaO: 0 to 13.5%
MgO + CaO + SrO + BaO: 9 to 29.5%, and
ZrO ₂ : 0 to 5%. 7. The method according to any one of claims 1 to 6,
Wherein said thin-film glass is a non-alkali glass having the following composition in terms of oxide-based mass percentage indication:
58 to 66% of SiO ₂ ,
Al ₂ O ₃ : 15 to 22%
B ₂ O ₃ : 5 to 12%
MgO: 0 to 8%
CaO: 0 to 9%,
3 to 12.5% of SrO,
BaO: 0 to 2%, and
MgO + CaO + SrO + BaO: 9 to 18%. The box-
An openable and closable door formed in a part of the receiving portion main body, and
The winding device for a thin plate glass according to any one of claims 1 to 6, housed in the accommodating portion main body so as to be able to move in and out through the door
And a receiving device for receiving the sheet glass. 10. The method of claim 9,
And a slit-like outlet for taking out the thin plate glass unwound from the winding device is formed in a part of the outer wall of the receiving portion main body. 11. The method of claim 10,
And a cleaning member for cleaning the front and back surfaces of the strip-shaped thin plate glass passing through the blowout opening is provided inside the blowout opening forming portion of the accommodating portion main body.

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