JP2010013178A - Packaging container for plate-like body, loading apparatus for plate-like body, and transporting method for plate-like body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging container, loading equipment and a transporting method which can prevent generation of an abrasion on a plate-like body caused by vibration during transport of the plate-like body piled flatly and curved. <P>SOLUTION: In the packaging container 10, two or more glass substrates G are piled flatly on a sheet material 14 and the sheet material 14 is curved together with the glass substrates G and attached to the container body 12 in a hanging state in for packing. The packaging container 10 is loaded on a loading platform of a transport vehicle and is transported from a glass substrate manufacturing factory to a liquid crystal display manufacturing factory. The packaging container 10 is loaded in a state that the curved direction of the sheet material 14 and glass substrates G faces in the orthogonal direction to traveling direction of the transport vehicle so that vibration from the vehicle is absorbed by the sheet material 14 hung in midair and is hardly transferred to the glass substrates G during transportation of the glass substrates G. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention particularly relates to a glass substrate for a liquid crystal display, a plate-like packing container for packing a plate-like body such as a glass plate of an intermediate product in the manufacturing process thereof, and a stack for loading the plate-like body into the packing container. The present invention relates to a method for transporting a plate-like body using a loading device and a packing container for the plate-like body.

  In recent years, the need for a large mother glass substrate having a thickness of 1 mm or less used for a glass substrate for a liquid crystal display has been increasing. As for the size, one having a side of 2800 mm or more, 3100 mm or more, 3300 mm or more, 3600 mm or more is known. ing.

  The mother glass substrate is manufactured at a glass substrate manufacturing factory, and then packed and transported to a display manufacturing factory by a transportation vehicle. When the large mother glass substrate is packed in a flat container, the width of the container is the transportation vehicle. Since it exceeds the loading limit width, it cannot be mounted on the loading platform of a transport vehicle. Then, the packaging container disclosed by patent document 1 is known as a container which packages such a large sized glass substrate.

The packaging container of Patent Document 1 includes a base on which a concave curved surface is formed, and a plurality of glass substrates are stacked on the curved surface of the base. Thereby, since the glass substrate is laminated in a curved state following the curved surface, the linear dimension of the glass substrate in the bending direction is shortened, and the width dimension of the entire packaging container can be shortened. Therefore, even if it is a glass substrate which has a width dimension exceeding the loading limit width (2500 mm: (vehicle limitation order Article 3 Clause 1)) of a transportation vehicle by using the packing container of patent documents 1, it is transportation vehicles. It can be mounted and transported.
JP 2007-106419 A

  However, since the packaging container of Patent Document 1 is such that a glass substrate is laid flat on the curved surface of the base, vibration from the transportation vehicle is directly transmitted to the glass substrate through the base, and the surface of the glass substrate is caused by the vibration. There was a problem of scuffing.

  The present invention has been made in view of such circumstances, and in a flat and curved plate-like body, the occurrence of scratches on the plate-like body due to vibration during transportation of the plate-like body is prevented. It is an object of the present invention to provide a plate-shaped packing container, a plate-shaped body loading device, and a method for transporting the plate-shaped body.

  In order to achieve the above object, the present invention comprises a container body and a bendable sheet material that is detachably attached to the container body in a suspended state. Provided is a plate-like packaging container characterized in that a plate-like body can be held in a curved state.

  According to the present invention, a plurality of plate-like bodies are stacked on a sheet material, and the sheet material is bent together with the plurality of plate-like bodies and attached to the container body in a suspended state for packaging.

  Thereby, since the vibration from a transport vehicle is absorbed by the sheet material suspended, it is not transmitted to a plate-shaped body. Therefore, according to the plate-shaped packaging container of the present invention, in the flat and curved plate-shaped bodies, it is possible to prevent the occurrence of scraping of the plate-shaped bodies due to vibration during transportation of the plate-shaped bodies. Can do.

  In the plate-shaped packaging container of the present invention, it is preferable that a support member for supporting a part of the sheet material is provided on the container body.

  The plate-like body may be completely packed in the container body in a suspended state, but by providing a support member for supporting a part of the sheet material on the container body, a plurality of sheets stacked in a curved state on the sheet material The plate-like body can be stably supported on the container body. The part of the sheet material may be an edge portion, a bottom portion, or a curved portion between the edge portion and the bottom portion of the sheet material, and is preferably surface-supported. Further, it is more preferable that the supporting member is made of an elastic body and the sheet material is supported with elasticity from the viewpoint of preventing the occurrence of scuffing of the plate-like body.

  The plate-shaped packaging container of the present invention is such that the container body is in contact with a plate-shaped body positioned at the uppermost portion of the plurality of plate-shaped bodies stacked on the sheet material, and the plate-shaped body is curved. It is preferable that a holding member for holding the shape is provided.

  According to the present invention, when the glass substrate for G10, G11, G12 or the next generation ultra-large size flat panel display is to be curved, the minimum curvature is preferably R = 900 mm. This is because the glass substrate can be transported and returned to a flat state, and then a display product can be manufactured without any problem. In particular, it is suitable for an alkali-free glass substrate for an active element driving type flat panel display. Of course, it goes without saying that the present invention can be applied to a glass substrate for PDP or OLED.

  In the present invention, for a plate-like body that is hard and has a high elastic coefficient, since a large force is exerted on the plate-like body to release the curved shape, the container body is provided with a holding member that holds the curved shape. It is preferable to keep it. For example, since the glass substrate for liquid crystal displays as a plate-like body is non-alkali glass and is hard and has a high elastic coefficient, it is preferably used when packaging such a glass substrate.

  In general, a large mother glass substrate having a plate thickness of 1 mm or less, for example, 0.3 mm to 0.7 mm, and a vertical and horizontal size of about 2800 mm × 3100 mm or about 3300 mm × 3600 mm can be exemplified. Moreover, the glass substrate for displays of less than 0.3 mm, for example, 0.1-0.2 mm can also be manufactured by the manufacturing method especially suitable for an ultra-thin board.

  In order to achieve the above object, the present invention provides a lifting means for lifting a sheet material and a plate-like body by gripping an end of a bendable sheet material in which a plurality of plate-like bodies are stacked. Bending means provided on the upper means, and drive means for driving the lifting means to attach the curved sheet material to the container body in a suspended state, and at least by the weight of the plate-like body, the sheet material and Provided is a loading device for a plate-like body characterized by allowing the bending of the plate-like body.

  In this case, it is preferable that the loading device described above bends the sheet material and the plate-like body by providing an object other than the plate-like body and further applying a weight to the sheet material.

  The plate-like body loading device is installed in a plate-like body manufacturing factory, but can also be installed in a processing factory that processes the plate-like body that has been transported by a transport vehicle. In this case, it functions as a plate-shaped body take-out device. That is, a curved sheet material that is attached to the container main body in a suspended manner and in which a plurality of plate-like bodies are stacked is lifted by using an empty lifting means and taken out from the container main body.

  Next, tension is applied to the sheet material by the bending means, and the sheet material and the plate-like body are returned to the original flat state. Next, the lifting means is conveyed to a predetermined unpacking position by the driving means. Thereby, the loading apparatus of the plate-shaped body of this invention can be installed not only in the manufacturing factory of a plate-shaped body but in the processing factory of a plate-shaped body.

  In order to achieve the above-mentioned object, the present invention provides a sheet material and a plate-like body that are obtained by stacking a plurality of plate-like bodies on a bendable sheet material and gripping an end of the sheet material in the state of the flat-stacking. The sheet material and the plate-like body are bent by the weight of the plate-like body, and the sheet material is attached to the container body in a suspended state in the curved state, and the bending direction of the sheet material and the plate-like body is the progress of the transport vehicle. A transport method for a plate-like body is provided, wherein the container body is mounted on a transport vehicle and transported so as to face in a direction orthogonal to the direction.

  At this time, in addition to the weight of the plate-like body, it is preferable that the sheet material and the plate-like body are curved by further weighting the sheet material.

  When a transporting vehicle transports a packaging container in which a sheet material and a plurality of plate-like bodies are suspended in a container body and packed in a curved state, the bending direction of the sheet material and the plate-like body is the progress of the transportation vehicle. It is mounted so that it faces in the direction orthogonal to the direction. Since the linear dimension of the plate-like body in the bending direction of the plate-like body is short and the width dimension of the entire packaging container is short, even if it is a plate-like body having a width dimension exceeding the loading limit width of the transport vehicle, It can be mounted on a vehicle and transported.

  According to the plate-like packaging container of the plate-like body, the plate-like body loading device, and the plate-like body transporting method according to the present invention, a plurality of plate-like bodies are stacked on the sheet material. Since the sheet material is bent together with a plurality of plate-like bodies and attached to the container body in a suspended state and packed, the plate-like bodies stacked and bent are caused by vibration during transportation of the plate-like bodies. It is possible to prevent the occurrence of scratches on the plate-like body.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a plate-like packaging container, a plate-like body loading device, and a plate-like body transport method according to the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a front view of the packaging container 10 of the glass substrate G according to the first embodiment, and FIG. 2 is a perspective view of a main part of the packaging container 10. The packaging container 10 shown in these drawings is composed of a container body 12 and a bendable sheet material 14.

  The container body 12 is a substantially cubic box having an open top, and a base 16 is provided at the bottom. Moreover, the container main body 12 is manufactured with the metal member provided with the intensity | strength which can be equal to suspending and packaging the several glass substrate G, G .... 2 shows a view in which one side surface of the container body 12 is opened. However, the side surface and the top surface may be left open, and after the glass substrate G is packed, a shielding plate or the like is shielded. By using means, each open surface may be shielded from the outside air to be substantially sealed. From the viewpoint of maintaining the cleanliness of the glass substrate and ensuring the convenience of work, it is preferable to cover the outer surface of the packaging container with a shielding means. In the drawings, illustration of the shielding means is omitted.

  On the other hand, the sheet material 14 is formed larger in size than the rectangular glass substrate G. Further, as the sheet material 14, in order to curve a plurality of flatly stacked glass substrates G, G..., A sheet material having strength and elasticity, for example, a sheet material in which a lashing belt and spring steel are laminated. Is used.

  As long as the sheet material stably supports the plate-like body and does not give unnecessary force to the plate-like body, the sheet material may be in the form of a plurality of strips or meshes. From the viewpoint of ease of operation of the sheet material, management in use, and interaction with the plate-like body, a uniform and uniform film is preferable.

  A plurality of glass substrates G, G... Are stacked on the upper surface of the lashing belt constituting the sheet material 14 via a slip sheet (not shown). Further, rolls 18 and 18 are connected to both side edge portions 14A and 14A of the sheet material 14, and the rolls 18 and 18 are accommodated in the rectangular tubular connector members 20 and 20 and centered on the axis. It is supported rotatably.

  The sheet material 14 is detachably attached to the upper seats 22 and 22 of the container main body 12 via the connector members 20 and 20 in a curved state together with the glass substrates G, G. Thereby, the sheet material 14 and the glass substrates G, G... Stacked on the sheet material 14 are packed in the container body 12 in a suspended state.

  In this way, the glass substrates G, G... Placed on the upper part of the sheet material 14 are loaded into a transport vehicle, transported to a destination such as a liquid crystal panel manufacturing factory, and the glass substrate is loaded and unloaded. The substrate is returned to the flat position. At this time, a rotation jig (not shown) that presses against the side surfaces of the glass substrates G, G,... From the roll 18 may be provided so that the end portions of the plurality of glass substrates do not shift. When placing the glass substrate, the rotating jig is positioned outside the roll 18, and after the glass substrate is laid flat on the sheet material, the rotating jig is rotated with respect to the shaft core to be in a predetermined curved state. After the caulking, the positions of the end portions of the plurality of glass substrates are regulated.

  When a plurality of glass substrates stacked in a flat manner on a sheet material are lifted and the glass substrate is gradually bent, the glass substrate surface is pressed by a predetermined holding member so as to have a desired curvature, and the curve is obtained. Force the shape of the surface. As the holding member, aluminum or the like can be applied, and a cushioning material having a thickness of about several mm is preferably provided on the glass substrate surface side.

  Alternatively, by pressing the ends of the glass substrates G, G... With the rotating jig, the curved surface having a predetermined curvature is forced. If the plate thickness of the glass substrate is large, it becomes difficult to bend due to its rigidity. Therefore, a curved shape having a predetermined curvature is obtained by these additional methods.

  The attachment / detachment structure between the upper seat portion 22 and the connector member 20 is such that a plurality of pins project from the upper seat portion 22 and a plurality of fitting holes are formed on the lower surface of the connector member 20 to be fitted to these pins. The upper seat portion 22 and the connector member 20 can be made detachable by the fitting structure with the hole. The pin and the fitting hole may be reversed. Furthermore, the attachment / detachment structure is not limited to the pin and the fitting hole, and any structure may be used as long as the attachment / detachment is easily performed.

[Example]
The glass substrate G shown in this example is a thin mother glass substrate used for a liquid crystal display, the plate thickness is 1 mm or less, for example, 0.3 mm to 0.7 mm, and the vertical and horizontal sizes are about 2800 mm × 3100 mm, A large mother glass substrate of about 3300 mm × 3600 mm can be exemplified.

  In general, a large mother glass substrate is transported and stored by superimposing substrates of the same size. At that time, an interleaving paper for glass is provided between the glass substrates to exert a buffering effect and prevent generation of wrinkles during transportation. It is also possible to prevent glass contamination. This is because recent high-definition and high-precision glass substrates for liquid crystal displays are required to have higher quality and higher accuracy.

  For example, the slip sheet has a rough surface with a smoothness of 18 seconds or less (JIS P 8119, 1976), the contact area is reduced, the resin content of the slip sheet 12 is transferred to the glass substrate G, and a paper texture is formed on the glass surface. Paper quality that does not cause burning, dirt, etc. is selected and used.

  Therefore, according to the packaging container 10 of the first embodiment, a plurality of glass substrates G, G... Are stacked on the sheet material 14 and the sheet material 14 is curved together with the glass substrates G, G. Then, the container body 12 is attached in a suspended state and packed. And this packaging container 10 is mounted in the loading platform of a transport vehicle, and is transported from a glass substrate manufacturing factory to a liquid crystal display manufacturing factory.

  When the glass substrates G, G... Are transported, vibrations from the transport vehicle are absorbed by the suspended sheet material 14 and are therefore difficult to transmit to the glass substrates G, G. Therefore, according to the packaging container 10 of 1st Embodiment, the glass substrate G, G resulting from the vibration at the time of the transportation of the glass substrate G, G ... in the glass substrate G, G ... flatly stacked and curved. It is possible to prevent ...

  On the other hand, the bending amount (curvature, curvature radius) of the glass substrates G, G... At the time of packing is kept below a limit that causes a semi-permanent shape change. That is, by making use of the characteristics of the thin glass substrates G, G,..., The glass substrates G, G,. By using such a technique, that is, a technique in which a plurality of glass substrates G, G... Are stacked and curved on the sheet material 14, an operation of reloading the glass substrates G, G. Therefore, work in a short time becomes possible. Further, since the glass substrates G, G... Are curved during transportation, the end surface of the glass substrate G is not subjected to a load due to the weight of the glass substrate G and the end surface is not damaged as compared with the vertically stacked form. The quality of the substrate G is also good. The curved shape of the glass substrates G including the sheet material 14 is a perfect circle curve or a suspended curve depending on the material of the glass substrate G.

  FIG. 3 is a front view showing an embodiment in which two packaging containers 10 and 10 are stacked. The second-stage packing container 10 does not have the base 16, and the container is disposed via the prismatic receiving bases 24, 24 fixed to the upper seat portions 22, 22 of the first-stage packing container 10. The bottom 12A of the main body 12 is fixed by a fastener (not shown). Depending on the height of the loading platform of the transportation vehicle, the transportation amount of the glass substrates G, G,...

  FIG. 4 shows an embodiment in which a support member 26 that supports a part of the sheet material 14 is provided on the container body 12 of the packaging container 10. In the embodiment shown in the figure, a belt-like support member 26 is stretched in the container body 12, and the bottom portion 14 </ b> B of the sheet material 14 is abutted and supported by the support member 16.

  As shown in FIG. 1, the sheet material 14 and the glass substrates G, G... May be completely suspended in the container body 12, but a support member that supports a part of the sheet material 14 (the bottom 14 </ b> B in FIG. 4). By providing 26 on the container main body 12, a plurality of glass substrates G, G... Stacked in a curved state on the sheet material 14 can be stably supported on the container main body 12. In addition, although the bottom part 14B was illustrated as a part of the sheet | seat material 14 which the supporting member 26 supports, it is not limited to the bottom part 14B, The curved part between the peripheral part of a sheet | seat material 14, and a peripheral part and the bottom part 14B It is preferable that the sheet material 14 is supported on the surface. It is preferable to support the sheet material 14 by the support member 26 unless it deviates from the purpose of the present application of absorbing vibration from the transportation vehicle by the sheet material 14. In addition, it is more preferable that the support member 26 is formed of an elastic body and elastically supports a part of the sheet material 14 from the viewpoint of preventing generation of scuffs on the glass substrate G.

  FIG. 5 is a front view of the packaging container 10 provided with a holding member 28 that holds the curved shape of the glass substrates G, G. The holding member 28 is formed in a semicircular arc shape, and the arc-shaped support surface 28A is formed to have substantially the same curvature as that of the curved glass substrates G, G. Therefore, the curved shape of the glass substrates G, G... Is made by contacting the support surface 28A with the glass substrate G positioned at the top of the plurality of glass substrates G, G. Retained. The holding member 28 is formed in a flat plate shape and is in contact with the vicinity of both end portions of the curved glass substrate G. Further, although depending on the size of the glass substrate G, it is preferable that the glass substrate G is also brought into contact with the central portion of the glass substrate G if the size is large. Furthermore, the container body 12 shown in FIG. 5 may be provided with the support member 26 shown in FIG.

  For a glass substrate G that is hard and has a high elastic coefficient, a large force for releasing the curved shape is acting on the plate-like body, and thus the holding member 28 that holds the curved shape of the glass substrate G is used as a container. The main body 12 is preferably provided. For example, since the glass substrate for liquid crystal displays as a glass substrate is non-alkali glass and is hard and has a high elastic coefficient, it is preferably used when packaging such a glass substrate G. At this time, if the upper part of the holding member is attached to the container body side by a movable attachment method, a slide method or a pivot shaft, the holding member can be moved spatially, so that it is considered that inhibition of swinging of the sheet material and the glass substrate can be suppressed. . Moreover, if the movable holding member is used, it is thought that there exists an effect which can suppress the shift | offset | difference of a glass substrate.

  6 to 11 show an example of a glass substrate packing method on the glass substrate manufacturing factory side.

  FIG. 6 is a perspective view in which a plurality of glass substrates G, G... Are stacked on the sheet material 14 placed on the flat platform 30. As shown in the figure, the rolls 18 and 18 and the connector members 20 and 20 are handled as an integrated product with the sheet material 14, and are attached to and detached from the container body 12 shown in FIG. The sheet material 14 removed from the container body 12 is placed on the flat platform 30 as shown in FIGS.

  The flat platform 30 is handled in a polishing factory of a glass substrate manufacturing factory. That is, the glass substrate G polished to a predetermined thickness is stacked on the sheet material 14 placed on the flat stacking table 30 via a slip sheet (not shown) as shown in FIG.

  The sheet material 14 in which a predetermined number of sheets are stacked is conveyed from the flat loading table 30 to the stacking position of the container body 12 by the loading device 32 shown in FIGS.

  The loading device 32 includes a rail 34 and a carriage 36 that travels on the rail 34. The carriage 36 includes lifting arms (lifting means) 40, 40 disposed on both sides of the carriage body 38, actuators (curving means) 42, 42 that rotate these lifting arms 40, 40, and the carriage body. Cylinders (driving means) 44 and 44 for raising and lowering the lifting arms 40 and 40 via 38, and the cylinders 44 and 44 are supported by the rail 34 via a linear motion guide 46 so as to be able to run.

  A shaft 48 arranged in the horizontal direction is fixed to the upper end portion of the lifting arm 40, and this shaft 48 is rotatably supported by a bearing 50 fixed to the lower portion of the carriage main body 38. An actuator 42 is fixed to the bearing 50, and an output shaft of the actuator 42 is connected to the shaft 48. Therefore, when the actuator 42 is driven, the lifting arm 40 is rotated together with the shaft 48 in the range between the lifting position shown in FIGS. 7 to 10 and the tilting position shown in FIG.

  Moreover, the engaging part 41 is provided in the base end part of the lifting arm 40, and this engaging part 41 is detachably engaged with the connector member 20 shown in FIG. The engaging portion 41 is inserted into the opening portions 21, 21... Opened at a predetermined interval on the upper surface of the connector member 20, and is engaged with the rear surface side of the upper surface of the connector member 20 by rotating. Has a hook. As a result, the sheet material 14 is engaged with the lifting arm 40 via the hook as shown in FIG.

  A piston 45 of the cylinder 44 is connected to the upper surface of the carriage main body 38. Therefore, when the piston 45 is contracted from the extended state of the piston 45 in FIG. 9, the carriage main body 38 is lifted as shown in FIG. 10, whereby the sheet material 14 in which a plurality of glass substrates G, G. The platform 30 is lifted.

  Next, the operation of the loading device 32 configured as described above will be described.

  First, as shown in FIGS. 7 and 8, the carriage 36 is caused to travel along the rail 34 and is positioned above the flat platform 30. Next, the piston 45 of the cylinder 44 is extended, and the engaging portion 41 of the lifting arm 40 is engaged with the connector member 20 as shown in FIG. Next, the piston 45 is contracted to raise the carriage main body 38 as shown in FIG. 10, and the sheet material 14 on which the plurality of glass substrates G, G.

  Thereafter, the carriage 36 is caused to travel along the rail 34 and is stopped at a position above the container body 12 as shown in FIG. Then, the actuators 42 and 42 are driven to rotate the lifting arms 40 and 40 from the vertical lifting position shown in FIGS. 7 to 10 to the tilting position shown in FIG. As a result, a load is applied to the sheet material 14 from the lifting arms 40, 40, and the sheet material 14 and the glass substrates G, G... The sheet material 14 and the glass substrates G, G,... May be curved by the weight of the glass substrates G, G,.

  Thereafter, the piston of the cylinder 44 is extended, and the container main body 12 is lifted by a lifting means (not shown) to connect the connector members 20 and 20 to the upper seat portion 22 of the container main body 12 as shown in FIG. As a result, the glass substrates G, G... Are packaged in a suspended state and curved in the container body 12 via the sheet material 14.

  In addition, the loading apparatus of the sheet | seat material 14 is not limited to the loading apparatus 32 shown in FIGS. 7-11, What kind of mechanism is sufficient if it is an apparatus provided with the lifting means, the bending means, and the drive means. Even things can be applied.

  Further, as described above, the loading device 32 is installed in the glass substrate manufacturing factory, but it can also be installed in a processing factory that processes the glass substrates G, G ... transported by the transportation vehicle. . In this case, it functions as an extraction device for the glass substrates G, G.

  That is, a curved sheet material 14 that is attached to the container main body 12 in a suspended manner and in which a plurality of glass substrates G, G... Are stacked is lifted by using the lifting arms 40 and 40 and the cylinders 44 and 44 to Remove from the body 12. Next, tension is applied to the sheet material 14 by the actuators 42 and 42 to return the sheet material 14 and the glass substrates G, G... To the original flat state. Next, the lifting arms 40, 40 are transferred to a predetermined unpacking position together with the carriage 36, and the glass substrates G, G... Are placed on the flat platform placed at that position via the sheet material 14. Thereby, the loading apparatus 32 of embodiment can be installed not only in the manufacturing factory of the glass substrate G but in the processing factory of the glass substrate G.

  The transportation method of the packaging container 10 will be described. The container body 12 is mounted on the loading platform of the transport vehicle so that the curved direction of the sheet material 14 and the glass substrates G, G... Then transport.

  When the packaging material 10 in which the sheet material 14 and the glass substrates G, G... Are suspended in the container body 12 and packed in a curved state is transported by a transport vehicle, the sheet material 14 and the glass substrates G, G. It is mounted so that the bending direction is in a direction perpendicular to the traveling direction of the transport vehicle. In this case, since the linear dimension of the glass substrate G in the bending direction of the glass substrate G is short and the width of the entire packaging container 10 is shortened, the glass substrate G has a width exceeding the loading limit width of the transport vehicle. However, it can be mounted on a transport vehicle and transported.

  FIG. 12 is a front view showing a modified example of the packaging container 10.

  The packaging container 10 shown in the figure is provided with a support member 52 that supports the entire sheet material 14. The support member 52 may be made of the same material as the sheet material 14, but is preferably made of a buffer member that absorbs vibrations from the transportation vehicle. Next, the result about the basic configuration example will be described.

[Example 1]
When a non-alkali glass having a thickness of 0.7 mm was laminated with a curvature R = 1080 mm, it was confirmed by a test that the shape did not change. At this time, the tensile stress generated in the glass is about 24 to 34 MPa.

  When the glass is bent with simple R, if R = 900 mm, the diameter becomes 1800 mm, which is within the load width of 2500 mm of the transport vehicle. The stress generated at this time is about 29 to 39 MPa as a measured value.

  Since the minimum strength of the alkali-free glass subjected to the end face processing is 100 MPa (actual measurement value), no cracks are generated on the end face. Therefore, the minimum value of the radius of curvature of the glass within which the load width is within 2500 mm and the generated stress is within 40 MPa was measured as R = 900 mm.

  In the present invention, the maximum number of glass substrates G, G... That can be placed on one sheet material is about 100. At this time, if the plate thickness is 0.7 mm, the total weight of the glass substrate reaches about 3 t, but the sheet material that mainly supports the total weight may not be physically broken. In the above embodiment, the spring steel is exemplified, but it is a material that can sufficiently withstand the importance of 3t.

[Example 2]
In the two-stage stacking mode of FIG. 3, the number of glass substrates to be stacked may be determined in consideration of loading by lifting and the carrying capacity of equipment such as a forklift used for unloading. For example, it is preferable to set the number of glass substrates to be placed on one sheet material to 50 to 60 for ease of handling. In FIG. 3, illustrations of the two-stage stacking column, the loading platform, and the position of the inner wall of the housing are omitted.

  A vehicle platform such as a trailer has a maximum horizontal dimension of about 2380 mm and a maximum vertical dimension of about 2625 mm in the cross-sectional direction. On the other hand, the maximum horizontal dimension of the packaging container can be set to 2330 mm, and the maximum vertical dimension can be set to 2580 mm. In addition, the size of the packaging container in the longitudinal direction relative to the loading platform can be within 4300 mm with a large mother glass substrate of G12 class including the column part. A total of four sets of packing containers can be conveyed by one by two rows in the longitudinal direction.

  The vertical dimension per stage is 1200 mm. In this case, the curvature R1 of the outermost circumference of the plurality of curved glass substrates is 1054 mm, and the curvature R2 of the innermost circumference is 1000R.

  Although the glass substrate G is illustrated as an example of use of the present invention, not only the glass substrate G but also a plate-like body such as a resin plate or a metal plate can be used as long as it is a product that can be stacked and bent with a plate-like body. It can be packed in the packing container of the invention. Considering that a large and thin plate can be transported stably and efficiently, it is particularly effective for the glass substrate G for liquid crystal display.

The front view of the packaging container which concerns on the 1st Embodiment of this invention The perspective view of the packaging container shown in FIG. The front view which shows the Example which piled up the packaging container shown in FIG. 1 2 steps | paragraphs Front view of a packaging container provided with a support member that supports a part of the sheet material Front view of a packaging container provided with a holding member that holds the curved shape of the glass substrate A perspective view in which a plurality of glass substrates are stacked on a sheet material placed on a flat stacking table. Explanatory drawing showing the configuration and operation of the loading device that packs the glass substrate into the container body Explanatory drawing showing the configuration and operation of the loading device that packs the glass substrate into the container body Explanatory drawing showing the configuration and operation of the loading device that packs the glass substrate into the container body Explanatory drawing showing the configuration and operation of the loading device that packs the glass substrate into the container body Explanatory drawing showing the configuration and operation of the loading device that packs the glass substrate into the container body Front view of a packaging container provided with a support member for supporting the entire sheet material

Explanation of symbols

  G ... Glass substrate, 10 ... Packing container, 12 ... Container body, 14 ... Sheet material, 16 ... Base, 18 ... Roll, 20 ... Connector member, 22 ... Upper seat part, 24 ... Base, 26 ... Support member, 28 ... Holding member, 30 ... Flat loading platform, 32 ... Loading device, 34 ... Rail, 36 ... Dolly, 38 ... Dolly body, 40 ... Lifting arm, 42 ... Actuator, 44 ... Cylinder, 46 ... Linear motion guide, 48 ... shaft, 50 ... bearing, 52 ... support member

Claims (7)

A container body;
A bendable sheet material detachably attached to the container body in a suspended state,
The plate-shaped packaging container characterized in that the bendable sheet material can hold a plurality of flat-shaped plates in a curved state.   The plate container according to claim 1, wherein the container body is provided with a support member that supports a part of the sheet material.   The container body is provided with a holding member that is in contact with a plate-like body positioned at the uppermost portion of the plurality of plate-like bodies stacked on the sheet material and holds the curved shape of the plate-like body. The plate-shaped packaging container according to claim 1 or 2. A lifting means for holding the end portion of the bendable sheet material in which a plurality of plate-like bodies are stacked and lifting the sheet material and the plate-like body;
Bending means provided on the lifting means;
Driving means for driving the lifting means to attach the curved sheet material to the container body in a suspended state, and allowing the sheet material and the plate-like body to be curved at least by the weight of the plate-like body. A loading device for a plate-like body.   The loading device according to claim 4, wherein an object other than a plate-like body is provided, and the sheet material and the plate-like body are curved by further applying a load to the sheet material.   A plurality of plate-like bodies are stacked on a bendable sheet material, and the sheet material and the plate-like body are lifted by gripping the end of the sheet material in the flat-stacked state, and the sheet material is caused by its own weight. And the plate member is bent, and the sheet material is attached to the container body in a suspended state in the bent state, and the bending direction of the sheet member and the plate member is directed in a direction perpendicular to the traveling direction of the transport vehicle. A plate-like body transporting method comprising carrying a container body on a transporting vehicle.   The method for transporting a plate-like body according to claim 6, wherein, in addition to the weight of the plate-like body, the sheet material and the plate-like body are curved by further weighting the sheet material.

Images