JP2010036948A - Glass panel packing body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely reduce the collapse of a cargo containing a glass panel laminated body, and to improve the shock absorbing performance of a shock absorbing material for absorbing a shock applied to a pallet. <P>SOLUTION: The glass panel packing body 1 supports, from underneath with the top face 3a of a pallet 3, a glass panel laminated body 2 which is formed by flatly laminating a plural sheets of glass panels 6 with a protection sheet 5 inserted between each of them. A shock absorbing laminated body 4 which is formed by flatly laminating a plurality of shock absorbing materials 7 is inserted between the top face 3a of the pallet 3 and the bottommost face 2a of the body 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is an improvement technology for a glass plate package that employs a packaging form in which a glass plate laminate in which a protective sheet is interposed between each of a plurality of glass plates is stacked and supported from below by a support portion of a pallet. About.

  As is well known, typical glass substrates used in flat panel displays (FPD) such as liquid crystal display devices (LCD), plasma display devices (PDP), field emission display devices (FED), and organic EL display devices (OELD). As described above, various types of glass plates have recently been required to be further increased in size and thickness. Therefore, the glass plate manufactured in order to meet the said request | requirement becomes a thing which is easy to produce a failure | damage with enlargement and thickness reduction, and the packaging form of the glass plate at the time of transportation has become more important.

  And as a packing form of this kind of glass plate, a form in which a glass plate laminated body laminated in a flat state with a protective sheet interposed between each of a plurality of glass plates is supported from below by a pallet. I am doing. The reason is that stress concentration is unlikely to occur in the peripheral portion of the glass plate that is easily damaged in the packaging form.

However, even in the packaging form, when an impact is applied to the pallet during transportation or the like, the impact is transmitted to the glass plate included in the glass plate laminate, and the glass plate may be damaged. Therefore, in general, one cushioning material (one layer of cushioning material) such as rubber or silicone is generally interposed between the upper surface of the pallet and the lowermost surface of the glass plate laminate. (The following Patent Documents 1 to 4).
JP 2007-153395 A JP 2007-39091 A JP 2007-39092 A JP 2007-106419 A

  By the way, when a single cushioning material is interposed between the upper surface of the pallet and the lowermost surface of the glass plate laminate as described above, the thickness of the cushioning material has a close relationship with the shock absorbing effect of the cushioning material. It will be. That is, if the thickness of the cushioning material is too thin, the shock absorbing effect of the cushioning material will not be fully exerted, and the glass plate will be damaged if the pallet shakes vertically during transportation due to impact on the pallet in the vertical direction. May occur.

  On the other hand, in order to eliminate such a situation, when the thickness of the cushioning material is increased, a sufficient shock absorbing effect against the impact applied in the vertical direction can be obtained, but the following problem newly arises. obtain. That is, as the thickness of the cushioning material increases, the cushioning material is likely to be deformed, so that the posture of the glass plate laminate supported by the pallet via the cushioning material is likely to be unstable. Therefore, when the pallet rolls, the cushioning material undergoes non-uniform compression deformation in order to absorb the rolling, and the upper surface of the cushioning material is temporarily largely inclined from the state before absorbing the shock. There is a thing. As a result, following the inclination of the upper surface of the cushioning material, the posture of the glass plate laminate is also greatly inclined, and there is a risk that load collapse will occur.

  When the load collapse occurs in the glass plate laminate as described above, rubbing occurs between the glass plate and the protective sheet, and minute scratches may be formed on the surface of the glass plate. Such a scratch is a problem because it leads to a decrease in the product value of the glass plate. In particular, when the glass plate is a glass substrate for FPD, if there is a scratch on the surface of the glass substrate, it is not possible to form an element, or the wiring may be disconnected at the damaged portion. cause.

  Furthermore, if the collapse of the glass plate laminate occurs, there is a problem in the operation of taking out the glass plate from the glass plate laminate after the completion of transportation. That is, the glass plate is normally taken out automatically by the robot hand, but when the glass plate laminate is largely unloaded, it cannot be taken out by the robot hand. In addition, even if the degree of collapse of the glass plate laminate is small, the position on the pallet is shifted from front to back and left and right for each laminated glass plate. It becomes necessary to adjust the position, and the working efficiency is significantly reduced.

  This invention makes it a technical subject to reduce the load collapse of a glass plate laminated body reliably, improving the shock absorption performance of the shock absorbing material which absorbs the impact added to a pallet in view of the said situation.

  In order to solve the above-mentioned problems, the present invention supports a glass plate laminate, which is laminated in a flat state with a protective sheet interposed between each of a plurality of glass plates, from below on the upper surface of the pallet. A glass plate package formed by interposing a buffer material laminate in which a plurality of buffer materials are laminated in a flat state between the upper surface of the pallet and the lowermost surface of the glass plate laminate. Characterized.

  According to such a configuration, even when the buffer material laminate is made thick as a whole in order to absorb the pitching of the pallet, when absorbing the swaying of the pallet, It is difficult for non-uniform deformation that the upper surface is greatly inclined from the state before absorbing the pallet roll. Therefore, it is possible to reliably reduce the collapse of the glass plate laminate while improving the shock absorbing performance by increasing the thickness of the entire buffer material laminate. In addition, such an effect differs from the deformation | transformation aspect which arises in the single buffer material of the same thickness as the said shock-absorbing material laminated body in the deformation | transformation aspect which arises in each shock-absorbing material laminated body. Can be enjoyed for.

  Said structure WHEREIN: The said buffer material laminated body may laminate | stack the said several buffer material in the state of cutting edge mutually.

  In this way, even when the pallet roll is absorbed by the cushioning material laminate, the cushioning materials included in the cushioning material laminate are in a state of being mutually edged, so that each cushioning material individually moves in the lateral direction. You can also Therefore, when absorbing the roll of the pallet with the buffer material laminate, the buffer material laminate is less likely to be deformed unevenly.

  In the above configuration, the buffer material laminate may be stacked in a state where a plurality of the buffer materials are bonded and fixed to each other. Note that the thickness of the adhesive layer formed between the plurality of cushioning materials is negligible with respect to the thickness of the cushioning material (for example, 1/10 or less of the thickness of the cushioning material).

  If it does in this way, when absorbing the rolling of a pallet with a buffer material laminated body, it will become difficult to produce a nonuniform deformation | transformation in a buffer material laminated body. The reason for this is considered that the adhesive layer is generally a harder layer than the buffer material, so that excessive deformation of the buffer material can be prevented by the adhesive layer.

  Said structure WHEREIN: The said buffer material laminated body may be comprised from the said buffer material with a comparatively high softness | flexibility, and the said buffer material with a comparatively low softness | flexibility.

  In this way, the shock applied to the pallet can be mainly absorbed by the relatively flexible cushioning material, and excessive deformation of the entire cushioning material laminate can be prevented by the relatively flexible cushioning material. The entire buffer material laminate is more unlikely to cause non-uniform changes while ensuring good shock absorption performance.

  Said structure WHEREIN: The said buffer material laminated body may be divided | segmented into plurality within the surface along the lowermost surface of the said glass plate laminated body.

  This is effective in absorbing the pitching of the pallet. In other words, by dividing the buffer material laminate into a plurality of small blocks, the divided buffer material laminate is likely to undergo compression / tensile deformation and can efficiently absorb the pitch of the pallet. .

  In the above configuration, when a force is input in a lateral direction with respect to the pallet, the lowermost surface of the glass plate laminate and the buffer material laminate are present, and the glass plate laminate The amount of lateral slip between the lowermost support surface and the support surface is configured to be greater than the amount of lateral slip between the glass plate and the protective sheet included in the glass plate laminate. Preferably it is. In addition, the case where the uppermost surface of the buffer material laminate is a support surface is also included in “the support surface that exists above the buffer material laminate and is in contact with the lowermost surface of the glass plate laminate”. The “lateral direction” means a direction orthogonal to the stacking direction (vertical direction) of the glass plate laminate. Further, the “lateral slip amount between the lowermost surface of the glass plate laminate and the support surface” means a relative movement distance between the lowermost surface of the glass plate laminate and the support surface, “The amount of lateral slip between the protective sheet and the protective sheet” means the relative movement distance between the glass plate and the protective sheet. The latter slip amount between the glass plate and the protective sheet includes a case where no slip occurs between the glass plate and the protective sheet, that is, a case where the value becomes zero.

  In this way, when a force is input in the lateral direction with respect to the pallet during transportation, the amount of lateral slip between the lowermost surface of the glass plate laminate and the support surface is protected from the glass plate. It becomes larger than the amount of lateral slip between the seats. That is, even if the cushioning material laminate cannot fully absorb the pallet roll, the entire glass plate laminate is preferentially placed on the support surface before the displacement occurs between the glass plate and the protective sheet. By moving while sliding, the pallet roll can be absorbed. Therefore, it is possible to more reliably reduce the collapse of the glass plate laminate.

  In the above configuration, the coefficient of friction between the lowermost surface of the glass plate laminate and the support surface that is above the buffer material laminate and is in contact with the lowermost surface of the glass plate laminate is the glass. It is preferable to make it smaller than the friction coefficient between the said glass plate contained in a board laminated body, and the said protective sheet. In addition, the case where the uppermost surface of the buffer material laminate is a support surface is also included in “the support surface that exists above the buffer material laminate and is in contact with the lowermost surface of the glass plate laminate”. “Friction coefficient” means a coefficient of friction measured in accordance with JIS K7125: 1999. Even in the case of materials other than plastic films and sheets specified in the standard, friction coefficient is in conformity with the standard. The coefficient shall be measured.

  If it does in this way, the direction between the lowermost surface of a glass plate laminated body and a support surface will become easier to slip than between a glass plate and a protective sheet. Therefore, even if the pallet roll cannot be absorbed by the buffer material laminate, the entire glass plate laminate is preferentially placed on the support surface before the displacement occurs between the glass plate and the protective sheet. By moving while sliding, the pallet roll can be absorbed. Therefore, it is possible to more reliably reduce the collapse of the glass plate laminate.

  Said structure WHEREIN: The uppermost surface of the said buffer material laminated body becomes inclined with respect to a horizontal surface, The said glass plate contained in the said glass plate laminated body according to the uppermost surface of this inclined said buffer material laminated body, and The protective sheet may be laminated in an inclined state.

  In this way, since the glass plate laminate is in an inclined state, for example, by separately supporting one side of the glass plate laminate located on the lower side in the inclined state, the uppermost surface of the buffer material laminate Because of the inclination, the glass plate laminate is always pressed against the one side surface, so that the glass plate laminate is less likely to collapse.

  In the above configuration, the uppermost surface of the buffer material laminate is curved in a concave shape, and the glass plate and the protection included in the glass plate laminate are copied along the curved uppermost surface of the buffer material laminate. The sheets may be laminated in a curved state.

  If it does in this way, since the glass plate and protective sheet which are contained in a glass plate laminated body are laminated | stacked in a curved state, since it becomes difficult to produce gap between a glass plate and a protective sheet, the glass plate laminated body of This is advantageous in preventing the collapse of the cargo.

  Said structure WHEREIN: It is preferable that the said glass plate is a glass substrate for flat panel displays.

  As described above, according to the present invention, it is possible to reduce the collapse of the glass plate laminate as much as possible while improving the shock absorbing performance of the shock absorbing material that absorbs the shock applied to the pallet.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a side view schematically showing the glass plate package according to the first embodiment of the present invention, and FIG. 2 is an exploded perspective view of parts of the glass plate package shown in FIG.

  As shown in FIG. 1, the glass plate packaging body 1 includes a buffer material laminate 4 disposed between the glass plate laminate 2 and the upper surface 3 a of the pallet 3. The glass plate laminate 2 is supported from below by the upper surface 3 a of the pallet 3.

  As shown in FIG. 2, the glass plate laminated body 2 is obtained by laminating a protective sheet 5 and a glass plate 6 in a substantially horizontal posture in order from below. As the protective sheet 5, for example, a foamed resin sheet or paper manufactured from virgin pulp is used. Moreover, as the glass plate 6, for example, a glass substrate for FPD such as a glass substrate for liquid crystal display is suitable. In addition, the protective sheet 5 is larger than the glass plate 6 and protrudes outward from each side of the glass plate 6 in a state of being interposed between the glass plates 6. It also serves to protect the end face of the glass plate 6. At this time, the protruding dimension of the protective sheet 5 from the end face of the glass plate is preferably equal to or greater than the thickness of the glass plate 6 for each side of the glass plate 6.

  The buffer material laminate 4 is obtained by flatly laminating a plurality of (three in the illustrated example) buffer materials 7. The plurality of cushioning materials 7 are laminated without being bonded to each other, or are laminated in a state of being bonded and fixed to each other. In this embodiment, the uppermost surface 4a of the buffer material laminate 4 has a substantially horizontal plane, and the glass plate laminate 2 is directly placed thereon. That is, the uppermost surface 4 a of the buffer material laminate 4 also serves as the support surface of the glass plate laminate 2.

  Thus, if the glass plate laminated body 2 is supported by the upper surface 3a of the pallet 3 through the buffer material laminated body 4, the buffer material laminated body 4 is made thick as a whole in order to absorb the pitch of the pallet 3. Even in this case, when absorbing the rolling of the pallet 3, it is possible to prevent the uppermost surface 4a of the buffer material laminate 4 from being largely inclined from the substantially horizontal plane. This is because the mode of deformation that occurs in each buffer material 7 included in the buffer material laminate 4 is different from the mode of deformation that occurs in a single buffer material having the same thickness as the buffer material stack 4. This is due to Therefore, it is possible to reduce the load collapse of the glass plate laminate 2 as much as possible while suppressing the uneven deformation at the time of impact absorption while improving the shock absorption performance by making the entire buffer material laminate 4 thick. It becomes possible.

  The glass plate package 1 according to the second embodiment of the present invention will be described. The difference between the glass plate package 1 according to the second embodiment and the glass plate package 1 according to the first embodiment will be described with reference to FIG. In particular, the cushioning material 7 is composed of a highly flexible buffer material 7 and a relatively low flexibility buffer material 7. More specifically, the cushioning material laminate 4 of the glass plate package 1 according to the second embodiment has a relatively low flexibility of the central cushioning material 7 out of the three cushioning materials 7, and the upper and lower The flexibility of the cushioning material 7 on both sides is relatively high. That is, the buffer material laminate 4 has a structure in which the buffer material 7 having relatively low flexibility is interposed between the buffer materials 7 having relatively high flexibility.

  In this way, the shock applied to the pallet 3 is mainly absorbed by the cushioning material 7 having a relatively high flexibility, and the buffer material laminate 4 as a whole is excessively deformed by the cushioning material 7 having a relatively low flexibility. Therefore, the buffer material laminate 4 as a whole is more unlikely to undergo non-uniform changes while ensuring good shock absorption performance.

  In order to achieve the above-described effects, at least one of the cushioning materials 7 constituting the cushioning material laminate 4 has flexibility of at least one cushioning material 7 and flexibility of other cushioning materials 7. It only has to be different. That is, it is only necessary that the plurality of cushioning materials 7 constituting the cushioning material laminate 4 are composed of two or more types of flexibility. Of course, all of the plurality of cushioning materials 7 constituting the cushioning material laminate 4 may have different flexibility.

  FIG. 3 is a side view showing a glass plate package according to a third embodiment of the present invention. As shown in the figure, the glass plate packaging body 1 according to the third embodiment is different from the glass plate packaging body 1 according to the first and second embodiments described above in that the uppermost surface of the buffer laminate 4 4a is inclined with respect to the horizontal plane, and the glass plate 6 and the protective sheet 5 included in the glass plate laminate 2 are laminated in an inclined state, following the uppermost surface 4a of the inclined buffer material laminate 4. In the point. More specifically, a standing portion 8 is provided on one side of the glass plate laminate 2 positioned on the lower side in an inclined state. The surface on one side of the glass plate laminate 2 is pressed against the support surface 8 a of the standing portion 8 by the inclination of the uppermost surface 4 a of the buffer material laminate 4. In addition, in the example of illustration, although the standing part 8 is attached to the buffer material laminated body 4, it may of course be attached to the pallet 3. Moreover, the standing part 8 may be comprised so that attachment or detachment is possible.

  FIG. 4 is a side view showing a glass plate package according to the fourth embodiment of the present invention. As shown in the figure, the glass plate package 1 according to the fourth embodiment is different from the glass plate package 1 according to the first to third embodiments described above in that the uppermost surface of the buffer laminate 4 4a is curved in a concave shape, and the glass plate 6 and the protective sheet 5 included in the glass plate laminate 2 are laminated in a curved state following the uppermost surface 4a of the curved cushioning material laminate 4. is there.

  FIG. 5 is a side view showing a glass plate package according to a fifth embodiment of the present invention. As shown in the figure, the glass plate package 1 according to the fifth embodiment differs from the glass plate package 1 according to the first to fourth embodiments described above in that the buffer material laminate 4 is made of glass. In the point which divided | segmented into the grid | lattice form in the surface along the lowermost surface 2a of the board laminated body 2.

  The glass plate package 1 which concerns on 6th Embodiment of this invention is demonstrated. The difference between the glass plate package 1 according to the sixth embodiment and the glass plate package 1 according to the first to fifth embodiments described above is as follows. When shaking occurs, the amount of lateral slip between the lowermost surface 2a of the glass plate laminate 2 and the uppermost surface 4a of the buffer material laminate 4 that also serves as the support surface of the glass plate laminate 2 is It exists in the point comprised so that it may become larger than the sliding amount of the horizontal direction between the glass plate 6 contained in the glass plate laminated body 2, and the protective sheet 5. FIG. Specifically, the uppermost buffer material 7 that forms the uppermost surface 4a of the buffer material laminate 4 is formed of a low friction material, and the lowermost protective sheet 5 that forms the lowermost surface 2a of the glass plate laminate 2; By making the friction coefficient between the buffer material 7 formed of the low friction material smaller than the friction coefficient between the glass plate 6 and the protective sheet 5, a difference is formed in the slip amount as described above. To be. Here, the amount of slip in the lateral direction between the lowermost surface 2a of the glass plate laminate 2 and the uppermost surface 4a of the buffer material laminate 4 functioning as a support surface of the glass plate laminate 2 is, for example, glass Separation after transport between the center point of the protective sheet 5 forming the lowermost surface 2a of the plate laminate 2 and the contact point of the uppermost surface 4a of the cushioning material laminate 4 that was in contact with the center point at the stage before transport Defined by distance. Moreover, the slip amount of the horizontal direction between the glass plate 6 contained in the glass plate laminated body 2 and the protection sheet 5 is contacting the center point of the glass plate 6, and the said center point in the stage before transport, for example. It is defined as the distance after transportation between the contact points of the protective sheet 5.

  In this way, even if the buffer material laminate 4 cannot absorb the rolling of the pallet 3, before the displacement between the glass plate 6 and the protective sheet 5 occurs, the glass plate laminate 2. When the whole moves preferentially on the uppermost surface 4a of the buffer material laminate 4, the roll of the pallet 3 can be absorbed. Therefore, it is possible to more reliably prevent the collapse of the load on the glass plate laminate 2.

  FIG. 6 is a side view showing the glass plate package 1 according to the seventh embodiment of the present invention. The glass plate package 1 according to the seventh embodiment is different from the glass plate package 1 according to the first to sixth embodiments described above in that the lateral displacement regulating member that regulates the lateral displacement of the glass plate laminate 2. 9 is provided so as to surround the periphery of the glass plate laminate 2. Each lateral displacement regulating member 9 is separated from the side surface of the glass plate laminate 2 by, for example, about 15 to 25 mm in the initial state in which the glass plate laminate 2 is laminated on the pallet 3. In the example shown in FIG. 6, the lateral displacement restricting member 9 is attached to the buffer material laminate 4, but may be attached to the pallet 3. Further, it is preferable that a cushioning material such as rubber is attached to a portion of the lateral displacement regulating member 9 that actually contacts the glass plate laminate 2 and regulates the movement of the glass plate laminate 2. Further, the lateral displacement regulating member 9 may be configured to be detachable from the cushioning material laminate 4 and the pallet 3.

  In addition, this invention is not limited to said embodiment, It can implement in a various form. For example, in the glass plate package 1 according to the first to seventh embodiments, when the glass plate laminate 2 is directly supported by the uppermost surface 4 a of the buffer material laminate 4, that is, the uppermost surface of the buffer material laminate 4. Although the case where 4a serves as the support surface of the glass plate laminate 2 has been described, another member such as a metal plate is interposed between the buffer material laminate 4 and the glass plate laminate 2 so that the buffer material laminate 4 can be Other than the upper surface 4 a may be the support surface of the glass plate laminate 2.

  As Example 1 of the glass plate package 1 according to the present invention, the one shown in FIG. 6 was manufactured. The glass plate package 1 is manufactured as follows. First, the upper surface 3a of the pallet 3 made of an aluminum alloy is made of a cushioning material 7 made of polypropylene 30-fold expanded resin having a length of 2200 mm, a width of 2500 mm, and a thickness of 15 mm, and a polypropylene 30-fold expanded resin having the same length and width and a thickness of 10 mm. The cushioning material 7 and the cushioning material 7 made of polypropylene three-fold foamed resin (low friction material) having the same size and length and width of 10 mm are sequentially laminated from below. At this time, the three cushioning materials 7 are laminated in a state of being bonded and fixed to each other. Then, 200 glass plates 6 having a length of 2200 mm, a width of 2500 mm, and a thickness of 0.7 mm are stacked on the buffer material stack 4 formed by stacking the buffer materials 7 in this manner. At this time, a protective sheet 5 made of a foamed resin sheet made of polyethylene 40 times foamed resin having a length of 2260 mm, a width of 2560 mm, and a thickness of 0.5 mm is interposed between the glass plates 6, and the glass plate laminate 2 has the outermost portion. The same kind of protective sheet 5 is also arranged on the lower and uppermost parts. Thereafter, the lateral displacement regulating member 9 configured to be detachable is attached to the cushioning material laminate 4.

As a second example of the glass plate package 1 according to the present invention, a glass plate package 1 according to the first example was manufactured which was different from the glass plate package 1 according to the first example only in that the protective sheet 5 was paper. In addition, paper shall be manufactured by using virgin pulp as a raw material with a length of 2260 mm, a width of 2560 mm, and a basis weight of 50 g / m ² .

  As a third example of the glass plate package 1 according to the present invention, a product having the form shown in FIG. 7 was manufactured. The glass plate package 1 according to the third embodiment is different from the glass plate package 1 according to the first embodiment in that the buffer material laminate 4 has a vertical length of 2200 mm, a horizontal length of 2500 mm, and a thickness of 10 mm. The cushioning material 7 made of polypropylene 45 times foamed resin, the cushioning material 7 made of polypropylene 15 times foamed resin having the same size and thickness of 5 mm, and the length and width made of polypropylene 45 times foamed resin having the same size and thickness 10 mm. The shock-absorbing material 7 and the shock-absorbing material 7 made of polypropylene three-fold foamed resin having the same size and thickness of 10 mm are stacked in order from the bottom. The second difference is that the lateral displacement regulating member 9 is attached to the pallet 3. Other points are common to the first embodiment.

As a fourth example of the glass plate package 1 according to the present invention, a glass plate package 1 according to the third example was produced only in that the protective sheet 5 was paper. In addition, paper shall be manufactured by using virgin pulp as a raw material with a length of 2260 mm, a width of 2560 mm, and a basis weight of 50 g / m ² .

  As a fifth embodiment of the glass plate package 1 according to the present invention, a product having the form shown in FIG. 8 was produced. The glass plate package 1 according to the fifth embodiment is different from the glass plate package 1 according to the first embodiment in the configuration of the buffer material laminate 4. That is, in the glass plate package 1 according to the fifth embodiment, the buffer material laminate 4 is manufactured as follows. First, the cushioning material 7 made of polypropylene 45 times foamed resin having a length of 2200 mm, a width of 2500 mm, and a thickness of 10 mm, and the cushioning material 7 made of polypropylene 15 times foamed resin having the same size and length of 5 mm, and the length and breadth are the same size and thickness. The cushioning material 7 made of 10 mm polypropylene 45 times foamed resin is laminated in order from the bottom, and is equally divided into small blocks having a length of 440 mm, a width of 500 mm, and a thickness of 25 mm. A buffer material laminate 4 is formed by laminating a buffer material 7 made of polypropylene five-fold foamed resin (low friction material) having a partial cylindrical surface with a curvature radius of 30 m on the upper surface.

  As a comparative example, a glass plate package 11 shown in FIG. 9 was produced. The glass plate package 11 is manufactured as follows. First, a plurality of anti-vibration rubbers 12 are arranged on the upper surface 3 a of the same pallet 3 made of aluminum alloy as in the embodiment, and an aluminum alloy tray 13 is arranged on the anti-vibration rubber 12. A rubber sheet 14 having a length of 2200 mm, a width of 2500 mm, and a thickness of 5 mm is disposed on the upper surface of the tray 13. The anti-vibration rubber 12 and the rubber sheet 14 are each formed from a single piece of rubber when viewed in the thickness direction. And after laminating | stacking the glass plate 6 and the protective sheet 5 which consists of paper on the rubber sheet 14 on the same conditions as 2nd Example, the same lateral displacement control member 9 as Example is attached to the tray 13. FIG.

  And each of the glass plate package 1 according to Examples 1 to 5 manufactured as described above and the glass plate package 11 according to the comparative example is loaded on a truck bed and transported for 3 hours one way. With respect to the glass plate laminate 2, the deviation Δa, the movement amount Δb, and the number of damaged glass plates 6 were measured. The measurement results are shown in Table 1 below. As shown in FIG. 10, the deviation Δa is measured by the amount of horizontal displacement between the lowermost glass plate 6 and the uppermost glass plate 6 included in the glass plate laminate 2 after transportation. Further, in the glass plate laminate 2 before transportation, the laminate is made so that Δa becomes zero. Further, as shown in FIG. 11, the movement amount Δb is measured by a horizontal movement distance before and after transportation on the pallet 3 of the glass plate 6 positioned at the lowermost part of the glass plate laminate 2.

  According to said result, in the glass plate package 11 which concerns on a comparative example, both the shift | offset | difference (DELTA) a and the moving amount (DELTA) b are large, and also the glass plate 6 has come to be damaged. On the other hand, in all the glass plate packages 1 according to Examples 1 to 5, the values of the deviation Δa and the movement amount Δb are smaller than those of the comparative example, and among them, the glass plate package 1 according to Examples 1, 3, and 5 among them. Then, a very good result was obtained in which the deviation Δa was zero. Moreover, regarding the breakage of the glass plate, extremely good results were obtained in which all the glass plate packages 1 according to Examples 1 to 5 were zero. Therefore, by using the buffer material laminate 4 in which a plurality of cushioning materials 7 are laminated in a flat state, the impact absorbing performance of the buffer material 7 that absorbs the impact applied to the pallet 3 is improved, and the glass plate laminate is improved. It can be recognized that the load collapse of 2 can be reduced as much as possible.

It is a side view which shows the glass plate package which concerns on 1st Embodiment of this invention. It is a components disassembled arrangement perspective view of the glass plate packing object concerning a 1st embodiment. It is a side view which shows the glass plate package which concerns on 3rd Embodiment of this invention. It is a side view which shows the glass plate package which concerns on 4th Embodiment of this invention. It is a side view which shows the glass plate package which concerns on 5th Embodiment of this invention. It is a side view which shows the glass plate package which concerns on 7th Embodiment of this invention. It is a side view which shows the modification of the glass plate package which concerns on 3rd Example of this invention. It is a side view which shows the glass plate package which concerns on 5th Example of this invention. It is a side view which shows the glass plate package which concerns on the comparative example of this invention. It is a side view for demonstrating gap (DELTA) a of the glass plate laminated body in an Example. It is a top view for demonstrating the movement amount (DELTA) b of the glass plate laminated body in an Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Glass plate package 2 Glass plate laminated body 3 Pallet 4 Buffer material laminated body 5 Protective sheet 6 Glass plate 7 Buffer material 8 Standing part 9 Lateral deviation control member

Claims (10)

A glass plate laminate in which a protective sheet is interposed between each of a plurality of glass plates and laminated in a flat state, and is supported from below on the upper surface of the pallet,
A glass plate package comprising a buffer material laminate in which a plurality of buffer materials are laminated in a flat state between an upper surface of the pallet and a lowermost surface of the glass plate laminate.   The glass plate package according to claim 1, wherein the buffer material laminate is formed by laminating a plurality of the buffer materials in a mutually cut state.   The glass plate package according to claim 1, wherein the buffer material laminate is laminated in a state where a plurality of the buffer materials are bonded and fixed to each other.   The glass plate according to any one of claims 1 to 3, wherein the buffer material laminate is configured by the buffer material having a relatively high flexibility and the buffer material having a relatively low flexibility. Packing body.   The glass plate package according to any one of claims 1 to 4, wherein the buffer material laminate is divided into a plurality of pieces in a plane along the lowermost surface of the glass plate laminate.   When a force is input in the lateral direction with respect to the pallet, the lowermost surface of the glass plate laminate and the support above the buffer material laminate and in contact with the lowermost surface of the glass plate laminate The amount of lateral slip between the surfaces is configured to be greater than the amount of lateral slip between the glass plate and the protective sheet included in the glass plate laminate. The glass plate package according to any one of 5.   The glass plate laminate includes a coefficient of friction between the lowermost surface of the glass plate laminate and a support surface that is above the buffer laminate and is in contact with the lowermost surface of the glass plate laminate. The glass plate package of any one of Claims 1-5 made smaller than the friction coefficient between the said glass plate and said protective sheet.   The uppermost surface of the buffer material laminate is inclined with respect to a horizontal plane, and the glass plate and the protective sheet included in the glass plate laminate are inclined following the inclined uppermost surface of the buffer material laminate. The glass plate package according to any one of claims 1 to 7, which is laminated in a state.   The top surface of the buffer material laminate is curved in a concave shape, and the glass plate and the protective sheet included in the glass plate laminate are in a curved state following the top surface of the curved buffer material laminate. The glass plate package according to any one of claims 1 to 7, which is laminated.   The said glass plate is a glass substrate for flat panel displays, The glass plate package of any one of Claims 1-9.

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