JP2014073860A - Laminated packaging material of plate-like body, and plate-like body packaging container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laminated packaging material of a plate-like body and a plate-like body packaging container that can prevent a breakage of a plate-like body due to the folding of a sheet.SOLUTION: Notches 42 are provided at respective corners of protruding portions 14A of slip sheets 14. The notches 42 are provided by cutting the respective corners of the protruding portions 14A in a rectangular shape. When the protruding portions 14A are folded, the respective corners of the protruding portions 14A are notched, so that adjacent protruding portions 14A, 14A do not interfere at the ends, and thereby the protruding portions 14A are folded smoothly. Preferably, the dimension of the notches 42 is a length protruded from the side part of a glass plate G, that is, X=Y=5 mm. Also, a notch angle θ may not be limited to 90 degrees, but may be 90 degrees or more and 180 degrees or less. Also, it is preferable to include folds 46 at the boundary parts between the protruding portions 14A and a rectangular principal planes 14B of the slip sheets 14 covering the surfaces of the glass plates G.

Description

  The present invention relates to a stacked package of plate-shaped bodies and a plate-shaped package container.

  Patent Document 1 discloses a plate-shaped packaging container for packaging a flat panel display (FPD) glass plate such as a liquid crystal display or plasma display which is a plate-shaped body.

  The plate-shaped body packaging container is a slip sheet that presses from the side a stacked package of a base, a plate-like body mounting plate provided on the upper surface of the base, and a glass plate placed on the plate-like body mounting plate. A pressing member (lateral pressing member). After the stacked package is placed on the plate-like body placement plate, the side surface is pressed by the slip sheet pressing member, and then packed in the plate-like body packaging container.

  With the laminated package, a rectangular glass plate is laminated substantially horizontally and through a slip sheet (sheet) formed in a rectangular shape with a larger area than the surface area of the glass plate between the glass plates. It is a form. In addition, each side of the slip sheet is aligned in parallel with each side of the glass plate, and the substantially central portion of the surface of the slip sheet is aligned with the substantially central portion of the surface of the glass plate. Is placed on the upper surface of the glass plate. Further, the slip sheet has a size such that each side portion of the slip sheet protrudes by about 5 mm from each side portion of the glass plate.

  The slip sheet pressing member presses a protruding portion of the slip sheet that protrudes from each side of the glass plate toward the end surface of the glass plate. At this time, since the protruding portion is pressed against the end surface of the glass plate by the interleaf pressing member, the interleaf pressing member does not directly contact the end surface of the glass plate. Thereby, the said laminated package is packed in the said plate-shaped body packaging container by the said slip sheet pressing member, protecting the end surface of a glass plate with the softness | flexibility of a slip sheet.

WO2008 / 105190 Publication

  However, the conventional laminated packing of glass plates is twisted at each corner of the slip-out portion of the slip sheet when the slip-out portion of the slip sheet is bent by the slip sheet pressing member. In some cases, stress is generated in each corner of the portion, and this stress is transmitted to each corner of the glass plate to break the glass plate. Further, there is also a problem that the protruding portion is difficult to bend due to the twisting problem.

  The present invention has been made in view of such circumstances, and provides a laminated package of plate-like bodies and a plate-like body packaging container capable of preventing damage to the plate-like bodies caused by bending of the protruding portion of the sheet. The purpose is to do.

  In one aspect of the laminated package of plate-like bodies of the present invention, in order to achieve the above object, rectangular plate-like bodies and rectangular sheets having a larger surface area than the plate-like bodies are alternately laminated. A laminated package of plate-like bodies, each of the sides of the sheet being squeezed out by a predetermined amount from each side of the plate-like body, and the squeezed-out portions that are squeezed out are bent. In the stacked package of plate-like bodies in which the end face of the plate-like body is covered by the protruding portion, at each of the corners of the protruding portion of the sheet, at least one of notches or notches is provided. It is provided.

  According to one aspect of the present invention, when the protruding portion of the sheet that protrudes in a substantially horizontal direction from the side portion of the plate-like body is bent downward at a substantially right angle, each corner of the protruding portion of the sheet is Due to at least one of the cutouts or notches provided, the conventional twisting that occurs at each corner of the protruding portion does not occur. As a result, no stress is generated at each corner of the protruding portion of the sheet, so that excessive force is not applied from the sheet to the plate-like body, and thus the plate-like body resulting from bending of the protruding portion of the sheet. Can be prevented from being damaged.

  In one aspect of the laminated package of plate-like bodies of the present invention, it is preferable that the cut is provided along the diagonal of the sheet from the top of each corner of the protruding portion of the sheet.

  Since the conventional protruding portion is connected at each corner of the protruding portion, each protruding portion cannot be bent independently of the adjacent protruding portion. Twisting occurs, and the protruding portion cannot be bent smoothly.

  On the other hand, according to one aspect of the present invention, when the protruding portion of the sheet is bent, a cut is formed in each corner of the protruding portion, so that each protruding portion is adjacent. It can be bent independently of the protruding part. Therefore, the protruding portion of the sheet can be bent smoothly.

  In one aspect of the laminated package of the plate-like body of the present invention, the cutout angle of the cutout is preferably 90 degrees or more and 180 degrees or less.

  In one aspect of the laminated package of plate-like bodies of the present invention, the cutout angle of the cutout is preferably 90 degrees.

  According to one aspect of the present invention, when the protruding portion of the sheet is bent, each corner of the protruding portion is notched, so that the protruding portion can be bent smoothly.

  In one aspect of the stacked package of plate-like bodies of the present invention, a crease is provided at a boundary portion between the protruding portion of the sheet and the main surface of the sheet covering the surface of the plate-like body. Preferably it is.

  According to one embodiment of the present invention, the protruding portion can be smoothly bent by a fold with a smaller force.

  As for the one aspect | mode of the laminated package of the plate-shaped body of this invention, it is preferable that the said plate-shaped body is a glass plate whose plate | board thickness is 0.2 mm or less. The plate-like body is more preferably a glass plate having a plate thickness of 0.1 mm or less, more preferably a glass plate having a plate thickness of 0.05 mm or less.

  As the plate thickness of the plate-like body becomes thinner, the frequency of occurrence of breakage of the plate-like body due to bending of the protruding portion tends to increase, particularly in glass plates having a plate thickness of 0.2 mm or less. . For this reason, according to one aspect of the present invention, it is particularly effective when the present invention is applied to a laminated package of glass plates having a plate thickness of 0.2 mm or less.

  In one aspect of the plate-shaped packaging container of the present invention, in order to achieve the above object, a pedestal on which the stacked package of the plate-shaped body of the present invention is placed, and each side portion of the plate-shaped body of the stacked package An object of the present invention is to provide a plate-shaped body packaging container comprising a lateral pressing member that presses a protruding portion of a sheet that protrudes from the sheet toward an end surface of the plate-shaped body.

  According to one aspect of the present invention, a plurality of plate-like bodies and a plurality of sheets are alternately laminated directly on the base of the plate-like body packaging container or on the base via the plate-like body mounting plate. The laminated package is configured on the pedestal. Next, the protruding portion of the sheet that protrudes from each side portion of the plate-shaped body of the stacked package is pressed toward the end surface of the plate-shaped body by the plurality of lateral pressing members. At this time, since each corner of the protruding portion is provided with at least one of a notch or a notch, the conventional twist generated in each corner of the protruding portion does not occur. As a result, no stress is generated at each corner of the protruding portion of the sheet, so that excessive force is not applied from the sheet to the plate-like body, and thus the plate-like body resulting from bending of the protruding portion of the sheet. Can be prevented from being damaged.

  According to the laminated package of the plate-shaped body and the plate-shaped body packing container according to the present invention, each corner of the protruding portion of the sheet is provided with at least one of a notch or a cut, so that the sheet is eaten. It is possible to prevent the plate-like body from being damaged due to bending of the protruding portion.

The perspective view of the laminated package of the glass plate which concerns on embodiment, and a packaging container The perspective view explaining the structure of the packaging container shown in FIG. The sectional side view which expanded the principal part of the slip sheet holding member of the packaging container shown in FIG. The perspective view which shows the lamination | stacking form of the slip sheet and the glass plate in which the notch was formed The perspective view by which the protrusion part of the slip sheet in which the cut was formed was bent The perspective view which shows the lamination | stacking form of the slip sheet and the glass plate in which the notch was formed A perspective view in which the protruding portion of the slip sheet in which the cutout is formed is folded Plan view of slip sheet with notches and cuts

  Hereinafter, preferred embodiments of a laminated package of plate-shaped bodies and a plate-shaped package container according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is an external view in which a stacked package 10 of glass plates (plate bodies) according to an embodiment is packed in a glass plate packaging container (plate body packaging container) 12. FIG. 2 is a perspective view illustrating a configuration of a packaging container 12 including a stacked package 10 in which a plurality of glass plates G, G... And slip sheets (sheets) 14, 14.

  In the packing container 12, a plurality of (for example, 80 to 150) rectangular glass plates G, G... Are substantially horizontal and have a larger area than the glass plate G between the glass plates G, G. It is stacked and accommodated via interleaving papers 14, 14.

  The glass plate G shown in this example is a thin large glass plate used for FPD. For example, the plate thickness is 0.2 mm or less, or 0.2 mm to 2.8 mm, and the vertical and horizontal sizes are about 1300 mm × 1100 mm. It is a large glass plate of ˜3200 mm × 3000 mm. In addition, the trouble (breakage of a glass plate) in the conventional laminated package has a tendency that the frequency of occurrence increases as the plate thickness of the glass plate G decreases, and particularly occurs frequently in a glass plate having a plate thickness of 0.2 mm or less. It was. Therefore, the laminated package 10 of the embodiment described later is particularly effective as a laminated package of glass plates having a plate thickness of 0.2 mm or less.

  The slip sheet 14 has, for example, 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 14 is transferred to the glass plate G, and the paper surface is covered with paper. Paper quality that does not cause patterns, burns, dirt, etc. is selected and used. Further, the resin content of the interleaf paper 14 is 0.05% by mass or less (JIS P 8205, 1976), and the paper quality that does not adversely affect the quality of the glass plate G itself due to the combined effect with the paper surface roughness described above. Selected and used. Further, the Gurley stiffness of the interleaf paper 14 (the Gurley stiffness of the sheet based on the JAPAN TAPPI paper pulp test method 2000 version No. 40) is 1.0 mN or less, preferably 0.5 mN or less. When the Gurley stiffness of the slip sheet 14 exceeds 1.0 mN, that is, when the slip sheet 14 is stiff, twisting occurs at each corner of the slip sheet 14 and smoothes out the protruding portion described later. This is because there is a problem in that it cannot be bent. In this example, the slip sheet 14 is exemplified as the sheet, but the present invention is not limited to this. For example, a resin film, a resin sheet, and a foamed resin sheet can be applied instead of the interleaf paper 14.

  As shown in FIG. 2, the packaging container 12 mainly includes a pedestal 16 having a rectangular shape in plan view, a plate-like body placement plate 18, and an interleaf pressing member (lateral pressing member) 20. Further, prismatic guide members 22, 22... Used when stacking a plurality of packing containers 12 in the vertical direction are erected at the four corners of the upper surface of the base 16.

  The pedestal 16 is configured in a frame shape by a plurality of steel materials 24, 24. The steel material 24 is manufactured by, for example, an extruded material made of an aluminum alloy or a steel plate cut into a predetermined shape. Then, at least two frames in which the steel materials 24, 24,... Are assembled in a lattice shape vertically and horizontally, and the base 16 is assembled by assembling the steel materials 24 so that the lattice surfaces of these frames are substantially parallel to each other. Composed. As long as the material has rigidity and does not generate particles, any metal and resin can be used, but aluminum or aluminum alloy is preferable in terms of weight, rigidity, and cost.

  Further, fork lift openings 26 into which forks of a forklift (not shown) are inserted are formed at two positions on one side surface of the pedestal 16 on all side surfaces of the pedestal 16. Thereby, since the fork of the forklift can be inserted from any direction of the side surface of the pedestal 16, efficient transport work can be performed.

  The plate-like body mounting plate 18 is formed in a honeycomb shape and is mounted on the pedestal 16 via a vibration absorbing member (not shown), an inclination angle setting member, and the like.

  The upper surface of the plate-like body mounting plate 18 is covered with a resin sheet 28 in order to buffer vibrations generated by conveyance or the like, and the stacked package 10 is placed on the resin sheet 28. In addition, each side part of the slip sheet 14 is aligned in parallel with each side part of the glass plate G, and the substantially center part of the surface of the slip sheet 14 is aligned with the substantially center part of the surface of the glass sheet G. Is placed on the upper surface of the glass plate G by a robot (not shown). Further, the interleaf paper 14 is of a size such that each side portion of the interleaf paper 14 protrudes from the respective side portions of the glass plate G by about 5 mm.

  Two slip sheet holding members 20 are arranged at predetermined intervals on each of the four sides of a frame-shaped receiving tray 30 that surrounds the plate-like body mounting plate 18 and the resin sheet 28, and the receiving tray 30 is provided with screws 32 and 32. Fixed to. When the slip sheet pressing member 20 is fastened to the receiving tray 30 by the screw 32, the glass sheet G is pressed in the in-plane direction from the end surface by the slip sheet pressing member 20. By this pressing operation, each end surface of the four sides of the glass plate G is used to insert the protruding portion 14A (see FIG. 3) of the slip sheet 14 by the slip sheet pressing members 20, 20. Is sandwiched between.

  FIG. 3 is an enlarged side sectional view showing the main part of the slip sheet pressing member 20 of the packaging container 12 shown in FIG. As shown in the figure, the overlapping portions of the protruding portions 14A, 14A... Of the upper and lower interleaving papers 14 are pressed toward the end face of the glass sheet G by the interleaf pressing member 20. As a result, the interleaf holding member 20 does not directly contact the end surface of the glass sheet G, and the laminated package 10 is protected while the end surface of the glass sheet G is protected by the protruding portion 14A by the flexibility of the interleaf paper 14. It can be surely pressed from the side surfaces of the four sides.

  Further, since the protruding portion 14A is held between the slip sheet pressing member 20 and the end face of the glass plate G, the vertical movement of the glass plate G and the lateral displacement of the glass plate G are also suppressed. Yes.

  In the embodiment, the two slip sheet pressing members 20, 20 are arranged on each side of the tray 30, but the present invention is not limited to this, and the length of each side on each side of the tray 30. May be provided, or three or more short slip sheet pressing members may be provided along each side.

  Next, features of the stacked package 10 according to the embodiment will be described.

  As described above, the stacked package 10 is a stacked package in which rectangular glass sheets G and rectangular slip sheets 14 having a larger surface area than the glass sheets G are alternately stacked. The laminated package 10 is a laminated package in which each side portion of the interleaf paper 14 is protruded by about 5 mm in a substantially horizontal direction from each side portion of the glass plate G. Further, in this laminated package 10, the protruding portion 14A is bent downward at a substantially right angle with respect to the main surface 14B of the interleaf paper 14, and the end surface of the glass plate G is protruded. It is a laminated package covered with 14A.

  In the above-mentioned laminated package 10, in the embodiment, the notches 40 shown in FIG. 4A, the notches 42 shown in FIG. 5A, or the notches shown in FIG. 42 and the notch 40 are provided.

  4A, FIG. 5A, and FIG. 6, according to the main surface 14B, the protruding portion 14A is provided at each corner of the protruding portion 14A when bent downward at a substantially right angle. The notch 40, the notch 42, or the notch 42 and the notch 40 do not cause the conventional twist that occurs at each corner of the protruding portion 14A.

  As a result, no stress is generated at each corner of the protruding portion 14A, so that an excessive force is not applied from the interleaf paper 14 to the glass plate G, and thus the bending portion of the protruding portion 14A of the interleaf paper 14 is caused. The glass plate G to be broken can be prevented from being damaged.

The cut 40 shown in FIG. 4A is provided along the diagonal line of the slip sheet 14 from the top P of each corner of the protruding portion 14A. Thus, when the protruding portion 14A is bent, the notches 40 are formed at the corners of the protruding portion 14A. Therefore, as shown in the form after bending in FIG. 4B, each protruding portion 14A is formed. , 14A... Are bent independently of the adjacent protruding portions 14A, 14A. Therefore, the protruding portion 14A can be smoothly bent. The length L of the notch 40 is preferably the length from the top portion P of the protruding portion 14A to the nearest top portion of the glass plate G, that is, L≈7 mm (2 ^1/2 × 5 mm) in FIG. 4A. .

  In addition, since the conventional protrusion part is connected in each corner of the protrusion part, each protrusion part cannot be bent independently with respect to the adjacent protrusion part. The protruding part could not be bent smoothly.

  Further, the notches 42 shown in FIG. 5A are provided by cutting each corner of the protruding portion 14A into a rectangular shape. Thus, as shown in FIG. 5B, when the protruding portion 14A is bent downward at a substantially right angle with respect to the main surface 14B, each corner portion of the protruding portion 14A is notched, so that the adjacent protruding portion The portions 14A and 14A do not interfere with each other at the end portion, and thus the protruding portion 14A can be bent smoothly. The dimension of the notch 42 is preferably the length protruding from the side of the glass plate G, that is, X = Y = 5 mm in FIG. 5A.

  Furthermore, in the embodiment, the boundary between the rectangular protruding portions 14A, 14A,... And the rectangular main surface 14B of the slip sheet 14 covering the surface of the glass plate G is shown in FIGS. 4A and 5A. As described above, it is preferable that linear folds 46, 46. The protruding portions 14A, 14A,... Can be smoothly bent with a smaller force by the folds 46, 46. The interleaf paper 14 may be placed on the glass plate G in a state where the protruding portion 14A is bent in advance along the fold 46. As an example of the fold 46, a perforation can be illustrated.

  Further, according to the interleaf paper 14 provided with the notches 42 and the notches 40 shown in FIG. 6, there is some variation in the dimensions of the glass plate G. For example, the edges 44, 44 of the notches 42, 42. When the area of the glass plate G is smaller than the rectangular region 48 indicated by the two-dot chain line connecting the ..., when the protruding portions 14A, 14A,. It is easy to slip and may flutter. On the other hand, when the notch 42 is provided, the protruding portions 14A, 14A... Of the interleaf paper 14 can be deeply pushed and bent to the end surface portion of the glass plate G, so As compared with the above, the number of intersections at each corner of the slip sheet 14 is reduced. Therefore, there is an effect that the bending difficulty of the interleaf paper 14 can be reduced. Also in the interleaf 14 shown in FIG. 6, it is preferable to form the fold 46 shown in FIG. 5A.

  The notch angle θ of the notch 42 is not limited to 90 degrees shown in FIGS. 5A and 6, and may be 90 degrees or more and 180 degrees or less as shown by a two-dot chain line in FIG. 6. . That is, when the angle is less than 90 degrees, the adjacent protruding portions 14A and 14A interfere with each other at the end portion, so that the protruding portion 14A cannot be bent smoothly. This is because the end face of the plate G cannot be reliably protected by the protruding portion 14A. The notch angle θ is an angle of intersection between adjacent ends 14C and 14C of a pair of adjacent protruding portions 14A and 14A.

  On the other hand, in the packaging container 12 for packaging the stacked package 10 of the embodiment, first, a plurality of glass plates G, G... And a plurality of sheets are placed on the base 16 of the packaging container 12 via the plate-like body mounting plate 18. Sheets of interleaving paper 14, 14,... Next, the protruding portion 14 </ b> A of the slip sheet 14 that protrudes from each side of the glass plate G of the stacked package 10 is directed toward the end surface of the glass plate G by the plurality of slip sheet pressing members 20, 20. Press.

  At this time, each corner of the protruding portion 14A is provided with the notch 40 in FIG. 4A, the notch 42 in FIG. 5A, or the notch 42 and the notch 40 in FIG. The conventional twist generated at each corner of 14A does not occur.

  As a result, no stress is generated at each corner of the protruding portion 14A of the interleaving paper 14, so that no excessive force is applied from the interleaving paper 14 to the glass plate G. Therefore, the protruding portion 14A of the interleaving paper 14 is not affected. It is possible to prevent the glass plate G from being damaged due to the bending.

  The use example of the present invention is not limited to a glass plate, and the stacked package of the plate-shaped body of the present invention can be applied as long as it is a stacked package stacked via a sheet with a brittle plate-shaped body. In particular, the present invention is effective for a stacked package in which large FPD glass plates having a thickness of 0.2 mm or less are stacked via sheets, and a plate-shaped package container for packing the stacked package.

  G ... Glass plate, 10 ... Laminated package, 12 ... Packing container, 14 ... Interleaving paper, 14A ... Protruding portion, 14B ... Main surface, 14C ... End side, 16 ... Base, 18 ... Plate body mounting plate 20 ... slip sheet pressing member, 22 ... guide member, 24 ... steel material, 26 ... opening for forklift, 28 ... resin sheet, 30 ... saucer, 32 ... screw, 40 ... notch, 42 ... notch, 44 ... edge, 46 ... fold, 48 ... area

Claims (7)

A laminated package of a plate-like body formed by alternately laminating a rectangular plate-like body and a rectangular sheet having a larger surface area than the plate-like body, from each side of the plate-like body A stacked package of plate-like bodies in which each side portion of the sheet is squeezed out by a predetermined amount, and the squeezed-out squeezed portion is bent so that the end surface of the plate-like body is covered by the squeezed-out portion. In things,
A stacked package of plate-like bodies, wherein at least one of notches or notches is provided at each corner of the protruding portion of the sheet.   The said cut | incision is a laminated package of the plate-shaped body of Claim 1 provided along the diagonal of the said sheet | seat from the top part of each corner of the said protrusion part of the said sheet | seat.   The stacked package of plate-like bodies according to claim 1, wherein the notch angle of the notch is 90 degrees or more and 180 degrees or less.   The stacked package of plate-like bodies according to claim 3, wherein the notch angle of the notch is 90 degrees.   The plate according to any one of claims 1 to 4, wherein a fold is provided at a boundary portion between the protruding portion of the sheet and a main surface of the sheet covering the surface of the plate-like body. Stacked package of shaped objects.   6. The stacked package of plate-like bodies according to claim 1, wherein the plate-like body is a glass plate having a plate thickness of 0.2 mm or less. A pedestal on which the stacked package of plate-like bodies according to any one of claims 1 to 6 is placed;
A lateral pressing member that presses the protruding portion of the sheet protruding from each side of the plate-like body of the stacked package toward the end surface of the plate-like body;
A plate-like body packaging container comprising:

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