TW202128524A - Glass plate package body and method for preparing glass plate package body - Google Patents

Abstract

This glass plate package body (1) is provided with: a laminated body (3) obtained by alternately stacking rectangular glass plates (G) and slip sheets (P) serving as protective sheets in an inclined attitude in the front-rear direction; and a pallet (2) on which the laminated body (3) is mounted so as to be supported from the back side thereof, wherein each of the slip sheets (P) has a protruding portion (upper edge protruding portion (Pa)) that protrudes from an upper edge (Ga) of the glass plate (G), the protruding portions each have a fold line (Pf) formed at portions corresponding to both width-direction ends of the slip sheet (P), and the fold lines (Pf) are configured to extend in a direction that intersects with the width direction (the direction in which the upper edge (Ga) of the glass plate (G) extends).

Description

Glass plate packing body and manufacturing method of glass plate packing body

The invention relates to a glass plate package body and a manufacturing method of the glass plate package body.

As a form of conveying or storing various glass plates including glass substrates for flat-panel displays or glass substrates for solar cells, it is known that glass plates and protective sheets are alternately laminated to form a laminated body, and then the laminated body A glass plate package that is packaged while being mounted on a pallet.

Here, Patent Document 1 discloses an example of a glass plate package. In the package disclosed in the document, a rectangular glass plate and a protective sheet constituting the laminate are laminated in an oblique posture in the front-rear direction, and the laminate is mounted on a pallet in a state of being supported from the rear side. The protective sheet has an area larger than the glass plate, and the protective sheets respectively extend from the four sides of the glass plate. [Prior Art Literature] [Patent Literature]

Patent Document 1: Japanese Patent Laid-Open No. 2013-052895

[The problem to be solved by the invention] In addition, the glass plate package disclosed in Patent Document 1 has the following problems to be solved.

That is, in the package, there is a difficulty in that the portion of the protective sheet projecting from the glass plate (hereinafter referred to as the projecting portion) tends to fall to the rear side. Therefore, when the package body is opened, problems occur when the glass plate and the protective sheet are alternately taken out from the laminate. Specifically, when taking out the protective sheet, the protective sheet is often adsorbed from the front side by the suction pad included in the robot for taking out. However, due to the overhanging portion tilting backward, the suction by the suction pad fails, or the overhanging overhanging portion is hooked on the protective sheet or the glass plate that is not the object to be taken out, and there is a problem in that the protective sheet is not taken out.

The technical problem of the present invention made in view of the above situation is to avoid occurrence of failure in taking out the protective sheet when the glass sheet package is opened and the glass sheet and the protective sheet are taken out from the laminate. [Means to solve the problem]

The present invention for solving the above-mentioned problems is a glass plate package including: a laminated body in which a rectangular glass plate and a protective sheet are laminated in an oblique posture in the front-to-rear direction; and a pallet from the rear side The laminated body is loaded in the state of supporting the laminated body, and in the glass plate package, the protective sheet has an overhanging portion extending from the glass plate. When the direction in which the upper edge of the glass plate extends is the width direction, the overhanging A crease is formed in the portions abutting on both ends of the width direction of the protective sheet, and the crease extends in a direction intersecting the width direction.

In the present package, creases extending in a direction crossing the width direction (the direction in which the upper edge of the glass plate extends) are formed in the protruding portion that abuts on both ends in the width direction of the protective sheet. Therefore, the rigidity with respect to the rearward side of the part abutting on the both ends becomes stronger, and with this, it is possible to prevent the overhanging portion from falling backward. As a result, it is possible to avoid the occurrence of failure to take out the protective sheet due to the overhanging portion falling backward.

In the structure, the protrusion includes an upper protrusion extending from the upper edge of the glass plate, and a crease can also be formed on the upper protrusion.

The parts of the upper overhang that abut on both ends in the width direction of the protective sheet (two parts, the part abutting on one end and the part abutting on the other end) tend to fall back particularly easily. Therefore, if creases are formed in these two parts, the rigidity of the part with respect to the backward side becomes stronger, and with this, the upper side extension part can be prevented from falling backward. As a result, it is preferable to avoid the occurrence of failure of removal of the protective sheet due to the overhanging portion falling backward. In addition, if creases are formed at the two locations, even if creases are not formed between the two locations, it is possible to prevent the upper extension from falling to the rear side, so the purpose can be efficiently achieved.

In the above-mentioned structure, it is preferable that the creases are formed at different positions between the two adjacent protective sheets in the laminated body when viewed from the direction in which the glass plate is viewed from the front.

If this is the case, unlike the case where the creases are in overlapping positions, the fear that the creases are crushed and flattened can be eliminated. In addition, since the creases are formed at different positions, it is possible to use the unevenness (bulging in the front-rear direction) formed by the creases to support the upper extension on the front side by the upper extension on the rear side to prevent it from falling over. Therefore, it is more advantageous in terms of avoiding the occurrence of defective removal of the protective sheet.

In the above-mentioned structure, it is preferable that the direction of the concavities and convexities formed by the creases between the two adjacent protective sheets in the laminated body is opposite to each other.

If so, the direction of the unevenness formed by the creases is the opposite direction. Therefore, the creases can be effectively prevented from being crushed, and the parts of the upper protrusion that abut on the widthwise ends of the protective sheet can be reliably strengthened. Stiffness. Therefore, it is more advantageous in terms of avoiding the occurrence of defective removal of the protective sheet.

In the structure, the extension may also include two lateral extensions respectively extending from the two sides of the glass plate, and the crease may also be formed in the lateral extension. A portion located on the outer side of the protective sheet in the width direction than the crease extends forward from the crease.

In this structure, creases are formed on the side extensions. Furthermore, the part of the side extension part located on the outer side of the width direction of the protective sheet rather than the crease extends forward from the crease. Thereby, it is possible to preferably prevent the side extension portion from falling backward. Therefore, when the protective sheet is taken out, when the suction pad included in the take-out robot or the like sucks the side extension of the protective sheet from the front side, the failure of suction can be reliably avoided.

In the above-mentioned structure, it is preferable to include a pair of pressing members respectively pressing both side surfaces of the laminated body, and the creases are formed at positions corresponding to the pressing members.

If so, it is possible to press the part of the side extension part extending forward from the crease by the pressing member. Thereby, it is possible to reliably maintain the crease formed in the side extension part without disappearing. As a result, it is possible to more reliably avoid the failure of the adsorption.

In the above-mentioned structure, it is preferable to form a crease only on the protective sheet located at the front part of the laminated body, and the pressing member only presses the front part on the side surface of the laminated body.

The protective sheet located at the front part of the laminated body is more likely to fall over the side extensions to the rear side, and there is a tendency for the failure of the suction to occur easily. Therefore, if a crease is formed only on the protective sheet located at the front of the laminate, and the pressing member only presses the front on the side surface of the laminate, the effect of avoiding the failure of adsorption is obtained, and the pressing member is minimized as much as possible. The size has the effect of suppressing the cost of the package. In addition, since the pressing member does not come into contact with the rear part on the side surface of the laminate, it is also possible to surely eliminate the possibility that the side extension of the protective sheet located at the rear of the laminate may fall backward with contact.

In addition, the present invention for solving the above-mentioned problem is a method of manufacturing the glass plate package, which includes a transfer step of transferring the protective sheet before loading to a pallet by a transfer device. During the execution of the transfer step, As the chuck included in the transfer device clamps the protective sheet in the thickness direction, a crease is formed.

According to the glass plate package produced by this production method, the same functions and effects as those already described in the description of the glass plate package can be obtained. In addition, during the execution of the transfer step, a crease may be formed in a portion that becomes an extension part after the protective sheet. Therefore, it is possible to eliminate wastes such as performing the transfer of the protective sheet and the formation of folds on the protective sheet separately, and it is possible to prevent an increase in the number of steps required for the production of the glass plate package. [Effects of the invention]

According to the present invention, when the glass plate package is opened and the glass plate and the protective sheet are taken out from the laminate, it is possible to avoid the occurrence of failure to take out the protective sheet.

Hereinafter, the production method of the glass plate package and the glass plate package of the embodiment of the present invention will be described with reference to the attached drawings. Here, in each drawing referred to in the description of the embodiment, the direction in which the upper edge of the glass plate extends (width direction) is indicated as the X direction, and the vertical direction is indicated as the Y direction. The X direction, the Y direction, and the Z direction are directions orthogonal to each other.

<The first embodiment> As shown in FIG. 1, the glass plate package 1 of the first embodiment (hereinafter only referred to as the package 1) includes a pallet 2 and a laminate 3 mounted on the pallet 2.

The laminated body 3 includes a rectangular-shaped glass plate G and a rectangular-shaped backing paper P as a protective sheet. The glass plate G and the backing paper P are alternately laminated in the front-rear direction (direction inclined with respect to the Z direction) in a state of an inclined posture inclined with respect to the vertical direction (Y direction). The backing paper P is arranged at the rear of the layered body 3.

Here, an example of the specifications of the laminate 3 is given. The number of glass plates G constituting the laminate 3 is 100 to 400, and the size of the glass plate G (length×width) is 1000 mm×1200 mm to 2900 mm× 3200 mm, the thickness of the glass plate G is 0.2 mm to 2 mm. The interleaving paper P constituting the layered body 3 is a so-called glass interleaving paper, for example, pure pulp paper. The backing paper P has a size larger than that of the glass plate G (refer to FIG. 2, in FIG. 1 for convenience, both P and G are represented by the same size). Furthermore, as a protective sheet, a foamed resin sheet can also be used.

The pallet 2 mainly includes a base part 4, a rear surface support part 5, a bottom surface support part 6, a holding part 7, a buffer plate 8, and a support plate 9.

The base part 4 is formed with a hole part 4a for inserting a fork of a stacker or the like. The rear surface support part 5 stands up from the base part 4 and supports the rear surface of the laminated body 3 via the buffer plate 8. Thereby, the front surface 8a of the buffer board 8 functions as a support surface which supports the laminated body 3 from the back side. The bottom surface support part 6 supports the bottom surface (lower side Gb of each glass plate G) of the laminated body 3 via the support plate 9 on the base part 4.

The dimension in the X direction of the buffer plate 8 is smaller than the dimension in the X direction of the front surface 5a of the rear surface support portion 5. The buffer plate 8 is installed in the area of the front surface 5a except for the upper edge and both side edges. . The area of the glass plate G and the backing paper P is smaller than the area of the front surface 8 a of the buffer plate 8, and the peripheral edge portion of the buffer plate 8 is in a state where it protrudes from the laminate 3.

The front surface 5a of the rear surface support part 5 and the front surface 8a of the buffer plate 8 are inclined to the rear by a predetermined angle (for example, 5° to 25°) with respect to the vertical direction (Y direction). The two front surfaces 5 a and 8 a and the upper surface 6 a of the bottom support portion 6 (the upper surface 9 a of the support plate 9) form a substantially right angle (for example, 90°±10°), for example.

The buffer plate 8 and the support plate 9 include, for example, an elastic material such as foam or rubber. In this embodiment, both the buffer plate 8 and the support plate 9 are made of foamed polypropylene as a main material.

The holding part 7 mainly includes a belt 10, a pressing rod 11, and a side stopper 12.

The belt 10 is a ratchet belt including a ratchet portion 13. The belt 10 is hooked on a hook 14 arranged behind the rear surface support part 5 to form a double layer, and then the front surface of the pressing lever 11 is fastened by a ratchet part 13.

The pressing plate 15 is arranged on the front side of the laminated body 3, and the frame 16 is arranged on the further front side of the pressing plate 15. A hook 17 is provided on the frame 16, and a pressing rod 11 is placed on the hook 17. As the belt 10 is tightened, the pressing rod 11 presses the frame 16 to the rear side, and the frame 16 presses the pressing plate 15 to the rear side. Thereby, the laminated body 3 is fixed to the pallet 2 in the state pressed by the buffer board 8.

The pressing rod 11 is combined with the belt 10 so that the longitudinal direction thereof becomes the X direction. In the present embodiment, the two pressing rods 11 are arranged vertically with an interval.

In addition, the said holding part 7 is an example, as long as the laminated body 3 can be fixed to the pallet 2, the holding part 7 of another structure may be used.

As shown in FIG. 2, the interleaving paper P protrudes from the upper side Ga and the side edges Gc and Gc of the glass plate G, respectively. On the other hand, the backing paper P does not protrude from the lower edge Gb of the glass plate G, and the lower edge Gb of the glass plate G and the backing paper P are at the same position. Furthermore, the lower edge Gb of the glass plate G may also protrude from the lower edge of the backing paper P. In the following description, the portion of the interleaving paper P that protrudes from the upper edge Ga of the glass plate G is referred to as the upper edge extension Pa. In addition, in FIG. 2, for convenience of description, only the glass plate G and the backing paper P which are arranged on the rearmost side among the plurality of glass plates G and the plurality of backing papers P constituting the laminated body 3 are shown.

The creases Pf of the backing paper P are formed at both ends in the X direction of the upper overhanging portion Pa (a portion that abuts on both ends of the backing paper P in the width direction). That is, the crease Pf is formed at the upper corner of the rectangular shape formed by the backing paper P. In the present embodiment, the single fold Pf is formed so as to extend vertically with respect to the upper side Ga of the glass plate G (vertical with respect to the width direction) at both ends in the X direction. The crease Pf is located above the upper edge Ga of the glass plate G, and located below the upper edge (upper edge) of the backing paper P. However, it is not limited to this, and the crease Pf may be formed across the upper and lower sides of the upper side Ga, and the crease Pf may be formed up to the upper edge of the interleaving paper P.

In addition, when the package body 1 is opened and the glass plate G and the backing paper P are alternately taken out from the laminated body 3, when taking out the backing paper P, a robot or the like including a suction pad is often used. The suction pad included in the robot sucks from the front side an area (area located between the two creases Pf and Pf) of the upper extension Pa of the backing paper P, which is more inside than the corner.

Hereinafter, by referring to FIGS. 3a and 3b, the details of the fold Pf will be described. Here, when the layered body 3 is produced, as an example, a form in which one glass plate G and one backing paper P are superimposed into one group, and a plurality of groups are laminated in sequence. Fig. 3a shows the state before stacking the plurality of groups, and Fig. 3b shows the state after stacking.

As shown in FIGS. 3a and 3b, in this embodiment, as the backing paper P constituting the laminate 3, two types of backing papers P having different formation forms of the folds Pf are included. In the following description, the first type of interleaving paper P is referred to as interleaving paper P1, and the second type of interleaving paper P is referred to as interleaving paper P2 for distinction. Between the backing paper P1 and the backing paper P2, the direction of the unevenness|corrugation formed by the crease Pf and the position of the crease Pf are different in two points.

Regarding both the mounting paper P1 and the mounting paper P2, with the fold Pf as a boundary, a step is formed between the end side and the center side of the mounting paper P in the X direction. In the backing paper P1, the end portion side protrudes to the front side with respect to the center portion side. On the other hand, in the backing paper P2, the center part side protrudes to the front side with respect to the end part side.

The crease Pf of the backing paper P1 and the crease Pf of the backing paper P2 are formed at different positions in the X direction. Furthermore, the crease Pf of the backing paper P1 and the crease Pf of the backing paper P2 are formed at the same position in the Y direction. The fold Pf of the backing paper P2 is formed closer to the end of the backing paper P than the fold Pf of the backing paper P1 in the X direction.

The interleaving paper P1 and the interleaving paper P2 are alternately arranged in the laminate 3. Thereby, the direction of the unevenness|corrugation formed by the crease Pf between the two adjacent backing paper P of the laminated body 3 becomes the opposite direction. Furthermore, when the two adjacent backing papers P are viewed from the front in the direction of the glass plate G (which coincides with the thickness direction of the glass plate G), the folds Pf are formed at different positions (at The position deviated in the X direction in this embodiment).

Hereinafter, the manufacturing method of the said package 1 is demonstrated.

As an example, the manufacturing method of the package 1 includes a step of cutting out a backing paper P from a tape-shaped backing paper wound into a roll, a step of transferring the cut backing paper P by a transfer device, and a step of combining the glass plate G with Various steps such as a step of superimposing the backing paper P, and a step of placing the superposed glass plate G and backing paper P on the pallet 2. Here, only the transfer step (hereinafter referred to as the transfer step) will be described. Regarding other steps, since various forms are already known, the description is omitted.

The transfer device used in the execution of the transfer step is a device for transferring the backing paper P loaded on the pallet 2 one by one. As shown in FIG. 4, the transfer device includes four chucks 18 that clamp the corners of the four corners of the backing paper P in the thickness direction, respectively. Two chucks 18x of the four chucks 18 are clamped at the corners of the upper side extension Pa that becomes the backing paper P after being loaded on the pallet 2. Each of the two chucks 18x can form a crease Pf as the corners are clamped. That is, the transfer device can transfer the backing paper P while forming the folds Pf.

As shown in FIG. 5, the chuck 18x has a pair of claw parts 19,19. The pair of claws 19, 19 can perform opening and closing operations in the directions indicated by arrows at both ends in the figure. Then, as the pair of claws 19 and 19 are closed, the corner of the backing paper P is clamped, and as the pair of claws 19 and 19 are opened, the clamping of the corner is released.

Each of the pair of claw parts 19 and 19 has a base 20 and a chuck body 21.

The base 20 supporting the chuck body 21 includes metal, for example. On the other hand, the chuck body 21 that actually clamps the backing paper P contains resin or rubber, for example. Both the base 20 and the chuck body 21 are fixed by fasteners such as screws. In this embodiment, the base 20 has a threaded hole 20a formed with an internal thread, and the chuck 21 has a receiving hole 21a for receiving the head of a screw.

The chuck body 21 is formed with a step 21b extending in a straight line with the receiving hole 21a interposed therebetween. The step 21b formed on one of the chuck body 21 of the pair of claws 19 and 19 engages with the step 21b formed on the other chuck body 21 when the pair of claws 19 and 19 are closed. Thereby, as the pair of claw portions 19 and 19 are closed, a fold Pf is formed in the backing paper P.

In this embodiment, when the transfer step is performed, two transfer devices with different structures of the chuck 18x are used. The first transfer device forms a fold Pf in the backing paper P during the execution of the feeding step, and uses the backing paper P being transferred as the backing paper P1. On the other hand, the second transfer device forms a fold Pf in the backing paper P during the execution of the feeding step, and uses the backing paper P that is being transferred as the backing paper P2. Then, the backing paper P1 transferred by the first transfer device and the backing paper P2 transferred by the second transfer device are then alternately arranged in the laminate 3.

As shown in comparison between FIGS. 6a and 6b, the shape of the chuck body 21 is different between the chuck 18x of the first transfer device shown in FIG. 6a and the chuck 18x of the second transfer device shown in FIG. 6b. Specifically, between the chucks 18x of the two transfer devices, the direction of the unevenness formed by the step 21b is the opposite direction, and the position of the step 21b is shifted. Thereby, the difference in the formation form of the crease Pf between the backing paper P1 and the backing paper P2 is generated.

Hereinafter, the main functions and effects based on the package 1 will be described.

In the package 1, creases Pf are formed at both ends of the upper side extension Pa, and the creases Pf extend in a direction perpendicular to the direction in which the upper side Ga of the glass plate G extends (X direction). Therefore, at both ends of the upper extension Pa, the rigidity with respect to the rearward side becomes stronger, and with this, it is possible to prevent the upper extension Pa from falling backward. As a result, it is possible to avoid the occurrence of failure to take out the backing paper P due to the upper side extension Pa falling backward. In addition, when there is no fold Pf, the backing paper P existing on the front side of the layered body 3 is more likely to fall over the back side of the upper side extension Pa.

Here, the manufacturing method of the glass plate package body and the glass plate package body of this invention is not limited to the structure or form demonstrated in the said 1st Embodiment, For example, the following modified examples can also be adopted.

<The first modification example> In the above-mentioned embodiment, the fold Pf of the interleaving paper P is formed to extend vertically with respect to the upper edge Ga of the glass plate G, but it is not limited to this. As a first modification, as shown in FIG. 7, the fold Pf of the backing paper P may be formed to extend in a direction inclined with respect to the upper side Ga of the glass plate G (a direction inclined with respect to the width direction).

<Second Modification> In addition, in the above-described embodiment, the crease Pf of the interleaving paper P1 and the crease Pf of the interleaving paper P2 are formed at different positions in the X direction, and are formed at the same position in the Y direction, but it is not limited to this. As a second modification, as shown in FIG. 8, the crease Pf of the backing paper P1 and the crease Pf of the backing paper P2 may be formed at the same position not only in the Y direction but also in the X direction. In this case, when viewed from the direction in which the glass plate G is viewed from the front, the crease Pf of the backing paper P1 overlaps the crease Pf of the backing paper P2.

<Third Modification Example> Furthermore, as a third modification, as shown in FIG. 9, contrary to the above-mentioned embodiment, the crease Pf of the backing paper P1 and the fold Pf of the backing paper P2 are formed at the same position in the X direction, and in It is formed at different positions in the Y direction. In this case, a height difference H occurs between the crease Pf of the interleaving paper P1 and the crease Pf of the interleaving paper P2.

<Fourth Modification> Moreover, in the said embodiment, the direction of the unevenness|corrugation formed by the crease Pf between the backing paper P1 and the backing paper P2 is the opposite direction, but it is not limited to this. As a fourth modification, the direction of the concavities and convexities formed by the fold Pf between the two backing papers P1 and P2 may be the same. However, in this case, in order to prevent the crease Pf from being crushed and flattened, it is desirable that the crease Pf of the backing paper P1 and the crease Pf of the backing paper P2 do not overlap when viewed from the direction in which the glass plate G is viewed from the front.

The first modification to the fourth modification can be realized by adding necessary changes to the shape of the chuck body 21 included in the chuck 18x. That is, it is realized by changing the direction of the unevenness formed by the step 21b of the chuck body 21, the position of the step 21b, or the direction in which the step 21b extends.

<Fifth Modification> In addition, in the above-mentioned embodiment, a single fold Pf is formed at both ends in the X direction of the upper extension Pa of the interleaving paper P. However, it is not limited to this, and may be formed as a fifth modification. There are multiple creases Pf. Examples of a plurality of folds Pf can be formed by the chuck 18x shown in FIG. 10. The chuck body 21 of the chuck 18x is formed with unevenness 21c in which a plurality of protrusions having a semicircular cross section are arranged. Thereby, as the pair of claws 19 and 19 are closed, a plurality of folds Pf are formed in the backing paper P.

In the above-mentioned embodiment and modification examples, from the viewpoint of further preventing the rear side of the upper extension Pa, the vertical length of the fold Pf is preferably the vertical length of the upper extension Pa 30% or more, more preferably 50% or more, and even more preferably 70% or more. In addition, from the same viewpoint, it is preferable that the crease Pf is formed so as to straddle the upper and lower sides of the upper side Ga.

<Second Embodiment> Hereinafter, the package 1 of the second embodiment will be described. Here, in the description of the second embodiment, elements that are substantially the same as the elements already described in the first embodiment are denoted by the same reference numerals in the drawings referred to in the description of the second embodiment. Repeated explanations are omitted. Therefore, in the description of the second embodiment, only the differences from the first embodiment will be described.

The main difference between the packing body 1 of the second embodiment and the first embodiment is that, as shown in FIGS. 11 and 12, the packing body 1 includes a pressing member 22 instead of the side stopper 12, and is not an upper side extension. The protrusion Pa forms a crease Pf at a portion (hereinafter referred to as a side protrusion Pc) that protrudes from the side edge Gc of the glass plate G of the backing paper P. The side projecting portion Pc is a portion that abuts against the end portion of the backing paper P in the width direction.

Here, in FIGS. 11 and 12, only one side of the two side surfaces of the laminated body 3 is shown, but the other side also includes the pressing member 22 in the same manner, and extends at the side edge Pc A crease Pf is formed.

As described above, the pressing member 22 is arranged in a pair so as to respectively correspond to both side surfaces (one side surface and the other side surface) of the laminated body 3. Each of the pair of pressing members 22 is hooked and mounted on the belt 10 in a fastened state, and is interposed between the belt 10 and the side surface of the laminated body 3.

The pressing member 22 has a function of pressing the side surface of the laminated body 3 as it is installed. This function is for maintaining the crease Pf formed in the side protrusion Pc at a position corresponding to the pressing member 22 without disappearing.

As a detail of the function, when the pressing member 22 presses the side surface of the laminated body 3, the side edge that is bent along the side edge Gc of the glass plate G (the end surface of the glass plate G) is held by the crease Pf The state of the overhanging portion Pc maintains the crease Pf along with this. The crease Pf is formed in the side extension Pc in advance before the pressing member 22 presses the side surface of the laminated body 3 (for example, it is formed by bending the side extension Pc by a human hand or a jig). In addition, even after the pressing member 22 is removed from the package 1, the crease Pf remains on the side extension Pc. The crease Pf extends vertically with respect to the width direction (X direction).

The part of the side extension Pc located on the outer side in the width direction of the mounting paper P (the end edge side of the mounting paper P) than the fold Pf extends forward from the crease Pf as it is bent. Thereby, it is possible to prevent the side extension Pc from falling backward. As a result, it is possible to avoid the occurrence of failure to take out the backing paper P due to the side extension Pc falling to the rear side.

Furthermore, when the package body 1 is opened and the glass plate G and the backing paper P are alternately taken out from the laminate 3, when the backing paper P is taken out, the suction pad included in the robot for taking out is used to suck from the front side. The backing paper P is formed in the vicinity of the height position of the fold Pf.

The pressing member 22 presses only the front part on the side surface of the laminated body 3. In detail, the pressing member 22 presses and abuts on the side surface of the laminated body 3 only in the half of the range on the front side. In addition, only with respect to the interleaving paper P existing in the front portion (a range that abuts on the half of the front side), a crease Pf is formed in the side projecting portion Pc. That is, in the front-rear direction, the range pressed by the pressing member 22 on the side surface of the laminate 3 is the same range as the range in which the backing paper P having the fold Pf formed on the side extension Pc exists.

Here, in this embodiment, the crease Pf is not formed with respect to the side extension Pc (the side extension Pc that is not in contact with the pressing member 22) that is present at a position not corresponding to the pressing member 22. However, as a modified example of the present embodiment, the crease Pf may also be formed in the side extension Pc existing in these non-corresponding positions.

Furthermore, as a modification of the pressing member 22, in the case where the folds Pf are formed in the side extensions Pc with respect to all the backing papers P, the pressing member 22 may be pressed from the side surface of the laminated body 3 to the bottom. The entire range from the front to the rear. If this is the case, it is possible to more reliably avoid the occurrence of failure to take out the backing paper P.

In this embodiment, the front part is set to abut against the front side half (1/2) of the range, but the front part is not limited to half (1/2), for example, it can be set to 1/5 to 4/5 of the front side. However, it is preferable to set it to the range of 1/3 to 2/3 of the front side. In this case, it is also possible to avoid the occurrence of defective removal of the backing paper P. The reason is that the backing paper P that is present on the front side of the layered body 3 is more likely to fall to the rear side of the side extension Pc, and therefore, it is often sufficient to take countermeasures only to the backing paper P that is easy to fall.

Here, the details of the structure of the pressing member 22 will be described. As shown in FIGS. 13a and 13b, the pressing member 22 has a substantially rectangular parallelepiped shape. The pressing member 22 includes a main body 22a and an antistatic sheet 22b covering the outer surface of the main body 22a. Furthermore, in FIGS. 13a and 13b, for convenience, it is shown that there is a gap between the outer surface of the main body 22a and the anti-static sheet 22b, but in fact, both 22a and 22b are in contact.

As the material of the main body 22a, expanded styrene can be used. Of course, it is not limited to this, and the material of the main body 22a may also be polystyrene, polypropylene, etc., for example. When the pressing member 22 presses the side surface of the laminated body 3, the pressing surface 22aa that directly presses the side surface is formed as a flat surface. On the other hand, on the outer side surface 22ab existing on the back side of the pressing surface 22aa, a groove 22x for passing the belt 10 through is formed. The pressing member 22 is hooked on the belt 10 via the groove 22x. Furthermore, in the present embodiment, the groove 22x is configured to allow the belt 10 to pass through in a flat posture, but of course it is not limited to this, and it may be a structure in which the belt 10 passes through in a vertical posture.

Here, as described above, in order to preferably maintain the crease Pf by the pressing member 22, the height dimension (the dimension along the direction orthogonal to the extending direction of the groove 22x) of the pressing surface 22aa formed on the pressing member 22 is relatively small. Preferably, it is set to 50 mm or more.

As the material of the antistatic sheet 22b, for example, polyvinyl chloride, polystyrene, etc. can be used. The antistatic sheet 22b covers the entire outer surface of the main body 22a. At a portion of the main body 22a where the groove 22x is formed, the antistatic sheet 22b covers the outer surface of the main body 22a in a manner that imitates the side and bottom surfaces of the groove 22x.

Here, the glass plate package of the present invention is not limited to the structure described in the second embodiment, and various modifications can be adopted within a range that does not deviate from the gist of the present invention.

1: Glass plate package body (package body) 2: Pallet 3: Layered body 4: Abutment 4a: Hole 5: Rear surface support 5a, 8a: front surface 6: Bottom support 6a, 9a: upper surface 7: Holding part 8: Buffer board 9: Support plate 10: belt 11: Press lever 12: Side stop 13: Ratchet part 14, 17: hook 15: Press plate 16: frame 18, 18x: chuck 19: Claw 20: Pedestal 20a: threaded hole 21: Chuck body 21a: Containment hole 21b: step difference 21c: bump 22: Pressing member 22a: body 22aa: pressing surface 22ab: outer side 22b: Anti-static sheet 22x: Slot G: Glass plate Ga: The upper side of the glass plate Gb: under the glass plate Gc: the side of the glass plate H: height difference P: Backing paper (protective sheet) Pa: The top extension of the backing paper Pc: Side extension of backing paper Pf: The crease of the backing paper P1, P2: Backing paper

Fig. 1 is a perspective view showing a glass plate package. Fig. 2 is a front view showing a glass plate package. Fig. 3a is a cross-sectional view showing the periphery of a crease formed on the backing paper included in the glass plate package. Fig. 3b is a cross-sectional view showing the periphery of a crease formed on the backing paper included in the glass plate package. It is a figure which shows the transfer process in the manufacturing method of a glass plate package. Fig. 5 is a perspective view showing a chuck used in the execution of the transfer step. Fig. 6a is a cross-sectional view showing a chuck used in the execution of the transfer step. Fig. 6b is a cross-sectional view showing the chuck used in the execution of the transfer step. Fig. 7 is a front view showing a modification of the glass plate package. Fig. 8 is a cross-sectional view showing a modification of the glass plate package. Fig. 9 is a perspective view showing a modification of the glass plate package. Fig. 10 is a perspective view showing a modification of the chuck used in the execution of the transfer step. Fig. 11 is a side view showing the periphery of the pressing member included in the glass plate package. Fig. 12 is a plan view showing the periphery of the pressing member included in the glass plate package. Fig. 13a is a diagram showing a pressing member. Fig. 13b is a diagram showing a pressing member.

1: Glass plate packing body (packing body)

2: Pallet

4: Abutment

4a: Hole

5: Rear surface support

5a, 8a: front surface

6: Bottom support

6a, 9a: upper surface

8: Buffer board

9: Support plate

G: Glass plate

Ga: The upper side of the glass plate

Gb: under the glass plate

Gc: the side of the glass plate

P: Backing paper (protective sheet)

Pa: The top extension of the backing paper

Pc: Side extension of backing paper

Pf: The crease of the backing paper

Claims (8)

A glass plate package includes: a laminated body, which is formed by laminating rectangular glass plates and a protective sheet in an oblique posture in the front-rear direction; and a pallet in which the laminated body is loaded in a state supporting the laminated body from the rear side Body, and the glass sheet package body is characterized in that: The protective sheet has a protrusion extending from the glass plate, When the direction in which the upper edge of the glass plate extends is the width direction, Forming creases in the protruding portion that abuts on both ends of the protective sheet in the width direction, The crease extends in a direction crossing the width direction. The glass plate package according to claim 1, wherein The protruding part includes an upper protruding part protruding from the upper side of the glass plate, The crease is formed on the upper side extension. The glass plate package according to claim 2, wherein When the two protective sheets adjacent to each other in the laminate are viewed from the front of the glass plate, the creases are formed at different positions. The glass plate package according to claim 3, wherein Between the two adjacent protective sheets in the laminate, the directions of the concavities and convexities formed by the folds are opposite directions. The glass plate package according to claim 1, wherein The protruding part includes two side protruding parts respectively protruding from both sides of the glass plate, The crease is formed on the side protrusion, A part of the side extension part located on the outer side in the width direction of the protective sheet than the crease extends forward from the crease. The glass plate package according to claim 5, comprising a pair of pressing members that press the two side surfaces of the laminated body, respectively, The crease is formed at a position corresponding to the pressing member. The glass plate package according to claim 6, wherein The crease is formed only on the protective sheet located at the front of the laminate, The pressing member presses only the front part on the side surface of the laminate. A method for manufacturing a glass plate package is the manufacturing method of a glass plate package according to any one of claim 1 to claim 4, which is characterized in that it comprises: In the transferring step, the protective sheet before loading is transferred to the pallet by a transfer device, During the execution of the transferring step, the crease is formed as the protective sheet is clamped in the thickness direction by the chuck included in the transferring device.

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