JP2014069850A - Plate-like packing container - Google Patents

Abstract

The present invention provides a plate-shaped packaging container having improved peelability between a support of a plate-shaped packaging container located at the lower stage and a base of the plate-shaped packaging container located at the upper stage.
An intermediate sheet is disposed between an abutting surface of a shock absorbing sheet on a support of a plate-shaped packaging container and a lower surface of the pedestal, and the abutting surface of the shock absorbing sheet is the lower surface of the pedestal. It was prevented from following the shape. Thereby, according to a plate-shaped body packaging container, the adhesiveness of the support | pillar of the plate-shaped body packaging container located in a lower stage and the lower surface of the base of a plate-shaped body packaging container located in an upper stage falls, and peelability improves. .
[Selection] Figure 3

Description

  The present invention relates to a plate-like body packaging 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.

  This plate-shaped body packaging container includes a pedestal and a plate-shaped body placing member mounted on the pedestal, and a glass plate laminate is placed on the plate-like body placing member and packed. The glass plate laminate is a form in which a plurality of glass plates are laminated in a flat manner through sheets such as slip sheets.

  The plate-like body packaging containers are stacked up and down on the loading platform of the transport vehicle when transported by the transport vehicle. For this reason, pillars are erected at the four corners on the upper surface of the pedestal of the plate-shaped packaging container. A convex portion is provided on the upper end surface of the support column, and a concave portion fitted to the convex portion is provided on the lower surface of the pedestal. Therefore, by fitting the concave portion of the pedestal of the plate-like body packaging container located in the upper stage to the convex portion of the support of the plate-like body packaging container located in the lower stage, Plate-shaped body packaging containers are stacked.

  Moreover, the upper end surface of the support | pillar of the plate-shaped packaging container disclosed by patent document 2 has a convex part and a flat part around it, and the rubber-made buffer member is affixed on the said flat part. The buffer member is in contact with the lower surface of the pedestal of the plate-like packaging container located in the upper stage, thereby mitigating vibration and impact transmitted from the lower plate-like packaging container to the upper plate-like packaging container. . Further, the pedestal of the plate-like body packaging container of Patent Document 2 is provided with an opening into which a fork of a forklift is inserted in order to load and transport the plate-like body packaging container.

  As for the said support | pillar, the lower part of the support | pillar is detachably inserted by the hole provided in the upper surface corner part of the said base. The support column is removed from the pedestal so as not to interfere with the work when the glass plate laminate is loaded and unloaded from the plate-shaped packaging container. In the plate-like body packaging container of Patent Document 3, a storage unit for a column is provided on a base in order to store the removed column.

  Here, the whole mass of the plate-shaped package container in which the glass plate laminate is packed will be described.

  As an example, an 8th generation glass plate (depth dimension × width dimension is 2.5 m × 2.2 m, or 2.4 m × 2.1 m, plate thickness is 0.2 to 2.8 mm, about 10 kg / sheet) Is packed in a plate-shaped packaging container, the total mass of the plate-shaped packaging container is 1500 to 1600 kg. However, the overall mass of the plate-like packaging container tends to increase to about 2200 kg with the increase in the size of the glass plate due to the recent increase in the screen size of the FPD and the increase in the number of laminated sheets.

Utility Model Registration No. 3166374 WO2008 / 105190 Publication JP 2010-143599 A

  By the way, in the recent plate-like packaging container, when the upper plate-like packaging container is lifted upward with respect to the lower plate-like packaging container by using a forklift, the lower plate-like packaging container support Then, it was lifted in a state of being in close contact with the lower surface of the pedestal of the upper plate-shaped packaging container, and then a problem that the column dropped from the upper plate-shaped packaging container occurred.

  Such a problem is solved by configuring the fitting between the lower portion of the support column and the hole portion of the pedestal by an interference fit or an intermediate fit, and increasing the pulling force of the support column with respect to the hole portion of the pedestal more than the adhesion force of the close contact. it can. However, this measure has a problem in that it is difficult for the column to come out of the hole, which hinders the work efficiency of loading and unloading the glass plate laminate. Therefore, the fit between the lower part of the support and the hole of the pedestal has to be set as a gap fit.

  The present invention has been made in view of such a problem, and is a plate having improved releasability between the support of the plate-like body packaging container located in the lower stage and the base of the plate-like body packaging container located in the upper stage. An object is to provide a body packaging container.

  In order to achieve the above object, the present invention is a plate-like packaging container that is stacked up and down, and is mounted on a rectangular parallelepiped base and an upper surface of the base, and a plate-like laminate is mounted on the upper surface. A plate-like body placing member to be placed, and a lower surface thereof is detachably attached to the upper surface corner of the pedestal, and a contact surface that comes into contact with the lower surface of the pedestal of the plate-like packaging container located in the upper stage A plate-like body packaging container having a buffer member provided on an upper end surface thereof, and a plate-like body positioned on the upper stage where the contact surface of the buffer member is in contact with the contact surface An intermediate member is disposed between the lower surface of the pedestal of the packing container, and a plate-shaped packing container is provided.

  The present invention has been made paying attention to the following points.

  As described above, the total mass of the plate-shaped packaging containers has conventionally been 1500 to 1600 kg, but the recent total mass of the plate-shaped packaging containers is about to reach 2200 kg over 1600 kg. In the conventional total mass, the problem that the column is lifted does not occur, but in the recent plate-like body packaging container in which the mass is increased, the problem occurs. The cause of the problem is that the adhesion between the cushioning member of the support and the lower surface of the pedestal has increased compared to the conventional case due to the increase in the overall mass of the plate-like packaging container. . That is, it is considered that the contact force of the buffer member is increased by following the shape of the lower surface of the pedestal of the plate-shaped packaging container located in the upper stage by the increased overall mass. Therefore, in order to solve the problem, it is only necessary to prevent the contact surface of the buffer member from following the shape of the lower surface of the pedestal.

  Therefore, in the present invention, an intermediate member is disposed between the contact surface of the buffer member and the lower surface of the pedestal with which the contact surface contacts, so that the contact surface of the buffer member has the shape of the lower surface of the pedestal. I stopped copying.

  Therefore, according to the present invention, the adhesive force between the support of the plate-shaped body packaging container located in the lower stage and the lower surface of the base of the plate-shaped body packaging container located in the upper stage is reduced, and the peelability is improved. The problem can be solved. That is, when the upper plate-shaped packaging container is lifted upward with respect to the lower plate-shaped packaging container, the support of the lower plate-shaped packaging container is left on the base of the lower plate-shaped packaging container. The

  The intermediate member may be made of a material that is less likely to follow the shape of the lower surface of the pedestal than the buffer member. For example, when the buffer member is made of rubber, it is preferably made of natural resin, synthetic resin, or metal.

  In one aspect of the present invention, the intermediate member is preferably attached to the contact surface of the buffer member.

  In one aspect of the present invention, it is preferable that the intermediate member is attached to a lower surface of the pedestal of the plate-shaped packaging container located in the upper stage where the abutting surface of the buffer member abuts.

  According to the present invention, the intermediate member may be disposed between the contact surface of the buffer member and the lower surface of the pedestal with which the contact surface is contacted. Alternatively, it may be attached to the lower surface of the pedestal on which the abutting surface of the buffer member abuts.

  According to the plate-shaped packaging container of the present invention, the adhesion between the support of the plate-shaped packaging container located at the lower stage and the pedestal of the plate-shaped packaging container located at the upper stage is reduced, and the peelability is improved. Therefore, when the upper plate-shaped packaging container is lifted upward with respect to the lower plate-shaped packaging container, the support of the lower plate-shaped packaging container is left on the base of the lower plate-shaped packaging container. The Therefore, since the support column cannot be lifted together with the upper plate-shaped body packing container, the conventional problem that the support column falls can be solved.

The perspective view of the plate-shaped object packaging container which concerns on embodiment Side view of the form in which the plate-shaped packaging containers shown in FIG. 1 are stacked one above the other Enlarged perspective view of the shock absorbing sheet showing the first attachment form of the intermediate sheet The principal part perspective view of the lower surface of the base which showed the 2nd attachment form of the intermediate sheet

  Hereinafter, a preferred embodiment of a plate-like packaging container according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an external perspective view of a plate-like packaging container 10 according to an embodiment. FIG. 2 is a side view showing a state immediately before two plate-like body packaging containers 10 and 10 are stacked one above the other, and a third stage plate-like body packaging container 10 is stacked on the upper plate-like body packaging container 10. FIG.

  The plate-shaped packaging container 10 is packed with a glass plate laminated body 12 in which a plurality of (for example, 80 to 150) rectangular glass plates are horizontally laminated via sheets such as slip sheets. The glass plate is a thin large glass plate used for FPD. For example, the plate thickness is 0.2 mm to 2.8 mm, and the vertical and horizontal sizes are about 2400 mm × 2100 mm to 3200 mm × 3000 mm. . The slip sheet has, for example, a rough surface with a smoothness of 18 seconds or less (JIS P 8119, 1976), reduces the contact area with the glass plate, and transfers the resin component of the slip sheet to the glass plate. Paper quality that does not cause paper texture, burns, dirt, etc. on the surface is selected and used. Further, the resin content of the slip sheet is 0.05% by mass or less (JIS P 8205, 1976), and a paper quality that does not adversely affect the quality of the glass plate itself due to the combined effect with the paper surface roughness described above is selected. It is used.

  In the embodiment, as an example, the total mass of the plate-shaped packaging container 10 (the mass of the plate-shaped packaging container 10 alone + the mass of the glass plate laminate 12) is 2200 kg (including a total mass error of about ± 5%). ) Is illustrated. Moreover, although a glass plate is illustrated as a plate-shaped body packed in the plate-shaped body packing container 10, it is not limited to a glass plate, The product made from resin or a metal may be sufficient.

  The plate-shaped packaging container 10 mainly includes a rectangular parallelepiped pedestal 14 and a plate-shaped body mounting plate 16, horizontal pressing members 18, 18... Of the glass plate laminate 12, and prismatic columns 20, 20. . The support column 20 is erected in the vertical direction at the four corners of the upper surface of the pedestal 14, and when a plurality of (three in FIG. 2) plate-like packaging containers 10, 10. The plate-shaped packaging container 10 positioned at the lower stage is a member that supports the plate-shaped packaging container 10 positioned at the upper level. The configuration of the column 20 will be described later.

  The pedestal 14 is configured in a frame shape by a plurality of steel materials. The steel material is manufactured by, for example, an extruded material made of an aluminum alloy or a steel plate cut into a predetermined shape. At least two of these steel materials assembled vertically and horizontally in the form of a lattice are manufactured, and assembled with the steel materials so that each lattice surface is substantially parallel. Thereby, the base 14 is configured. The component of the pedestal 14 may be made of metal or resin as long as it is rigid and does not generate particles, but aluminum or aluminum alloy is used in terms of weight, rigidity, and cost. preferable.

  Further, fork lift openings 22 into which forks of a forklift (not shown) are inserted are provided on two sides of the pedestal 14 on one side of the pedestal 14. Thereby, the fork of the forklift can be inserted from any side surface of the base 14.

  The plate-like body mounting plate 16 is mounted on the upper surface of the base 14 via a vibration absorbing member (not shown), an inclination angle setting member, and the like.

  Two horizontal pressing members 18 are arranged at predetermined intervals on each of the four sides of the glass plate laminate 12, and are fixed to the plate-like body mounting plate 16 by screws (not shown). Moreover, when the horizontal pressing member 18 is fastened by the screw, the glass plate laminate 12 is pressed from the side by the horizontal pressing member 18. Thereby, the four sides of the glass plate laminate 12 are sandwiched between the lateral pressing members 18, 18.

  At the four corners of the upper surface of the pedestal 14, holes 24 are provided in the vertical direction, and the lower portions 26 of the columns 20 are detachably fitted into the holes 24. As a result, the columns 20 are erected in the vertical direction at the four corners of the upper surface of the base 14. Although the shape of the lower part 26 of the support | pillar 20 is shown by the quadrangular pyramid, it is not limited to this.

  The support 20 plays a role of supporting the upper plate-shaped packing container 10 by the lower plate-shaped packing container 10 when the plurality of plate-shaped packing containers 10 are stacked and transported in the vertical direction. For this reason, the upper end surface 28 of the support | pillar 20 is located above the uppermost surface of the glass plate laminated body 12 mounted in the upper surface of the plate-shaped object mounting board 16. FIG. In addition, the mass of one support | pillar 20 is about 3.6 kg.

  At the center of the upper end surface 28 of the support column 20, a quadrangular pyramid-shaped convex portion 30 is provided, and when this convex portion 30 stacks a plurality of plate-like body packaging containers 10, 10. The plate-like body packaging container 10 is fitted into recesses 32 provided at the four corners of the lower surface 15 of the base 14.

  Further, a rubber shock absorbing sheet (buffer member) 34 having a rectangular outline and a rectangular opening at the center is attached to the flat portion around the convex portion 30 of the upper end surface 28 of the support column 20. It is done. Vibration and impact transmitted from the lower plate-shaped packaging container 10 to the upper plate-shaped packaging container 10 are alleviated by the shock absorbing sheet 34.

  FIG. 3 is an enlarged perspective view of the shock absorbing sheet 34 showing the first attachment form of the intermediate sheet.

  An intermediate sheet (intermediate member) 36 having the same shape as the shock-absorbing sheet 34 is affixed to a contact surface 34A of the upper surface of the shock-absorbing sheet 34 (originally, a surface that is in close contact with the lower surface 15 of the base 14). Yes. The intermediate sheet 36 will be described later. In addition, the support | pillar 20 is removed from the hole 24 of the base 14 at the time of the loading / unloading operation | work of the glass plate laminated body 12. As shown in FIG.

  The plate-shaped body packaging container 10 according to the embodiment is configured such that when the upper plate-shaped body packaging container 10 shown in FIG. 2 is lifted with respect to the lower plate-shaped body packaging container 10 by a forklift, the lower plate-shaped body packaging container 10 is packed. The conventional problem that the column 20 of the container 10 is brought into close contact with the lower surface 15 of the pedestal 14 of the upper plate-shaped packing container 10 and lifted together with the upper plate-shaped packing container 10 is solved.

  That is, as shown in FIG. 3, the intermediate sheet 36 is attached to the contact surface 34 </ b> A of the shock absorbing sheet 34, that is, the intermediate sheet 36 is disposed between the contact surface 34 </ b> A of the shock absorbing sheet 34 and the lower surface 15 of the base 14. Thus, the adhesion of the shock absorbing sheet 34 to the lower surface 15 of the base 14 is eliminated.

  Although the total mass of the conventional plate-shaped packaging container was 1500-1600 kg, the recent mass of the plate-shaped packaging container 10 is about to reach 2200 kg. In the conventional overall mass, the problem that the support column 20 is lifted does not occur, but the problem has occurred in the recent plate-like body packaging container 10 whose mass is increased.

  The cause of the problem is that the contact mass 34A of the shock absorbing sheet 34 of the support column 20 and the lower surface 15 of the pedestal 14 are in close contact with each other because the overall mass of the plate-like packaging container 10 has increased to 2200 kg. This is because it has increased compared to the conventional case. That is, it is considered that the contact force is increased by the contact surface 34A of the rubber-made shock absorbing sheet 34 following the shape of the lower surface 15 of the base 14 due to the increased overall mass.

  Therefore, in order to solve the problem, it is only necessary to prevent the contact surface 34A of the rubber shock absorbing sheet 34 from following the shape of the lower surface 15 of the base 14.

  Therefore, in the embodiment, as shown in FIG. 3, the intermediate sheet 36 is attached to the contact surface 34A of the shock absorbing sheet 34 so that the contact surface 34A of the shock absorbing sheet 34 follows the shape of the lower surface 15 of the pedestal 14. I stopped it.

  Therefore, according to the plate-shaped packaging container 10 of the embodiment, the adhesion between the support 20 of the plate-shaped packaging container 10 located in the lower stage and the lower surface 15 of the base 14 of the plate-shaped packaging container 10 located in the upper stage. Decreases and the peelability improves, so that the conventional problem can be solved. That is, when the upper plate-shaped packaging container 10 is lifted upward with respect to the lower plate-shaped packaging container 10, the support 20 of the lower plate-shaped packaging container 10 has the lower plate-shaped packaging container 10. The pedestal 14 is left behind.

  The material of the intermediate sheet 36 may be any material that is less likely to follow the shape of the lower surface 15 of the pedestal 14 than the rubber shock absorbing sheet 34. For example, it is preferably made of natural resin, synthetic resin, paper, or metal, and more preferably a material having a Young's modulus exceeding 0.1 GPa.

  1 to 3, the example in which the intermediate sheet 36 is attached to the contact surface 34A of the shock absorbing sheet 34 has been described. However, the intermediate sheet 36 is in contact with the contact surface 34A of the shock absorbing sheet 34. What is necessary is just to arrange | position between the lower surface 15 of the base 14 with which the surface 34A is contact | abutted. Therefore, as in the second attachment form of FIG. 4, the intermediate sheet 36 is attached to the lower surface 15 of the base 14 of the plate-like packaging container 10 positioned at the upper stage where the contact surface 34A of the shock absorbing sheet 34 is in contact. May be.

  Next, a simple comparison test comparing peelability will be described.

[Specimen]
1) A test body of the first example is prepared in which a craft sheet corresponding to the intermediate sheet 36 is interposed between an impact absorbing sheet 34 and an aluminum plate (hereinafter referred to as an aluminum plate).

  2) A test body of the second example is prepared in which a sheet obtained by stretching a polypropylene material having a thickness of 0.06 mm corresponding to the intermediate sheet 36 is interposed between the shock absorbing sheet 34 and the aluminum plate.

  3) A test body of the third example is prepared in which a stainless steel sheet having a thickness of 0.1 mm corresponding to the intermediate sheet 36 is interposed between the shock absorbing sheet 34 and the aluminum plate.

  4) A test body of a fourth example in which a sheet of polyethylene terephthalate material having a thickness of 0.1 mm corresponding to the intermediate sheet 36 is interposed between the shock absorbing sheet 34 and the aluminum plate is prepared.

  5) A test sample of a comparative example in which the shock absorbing sheet 34 is directly adhered to the aluminum plate is prepared.

〔Test method〕
1) After pressurizing the specimen with a predetermined pressure for 15 minutes using a pressure tester, remove the specimen from the pressure tester and leave the aluminum plate on the top side to absorb the impact from the aluminum plate. Measure the time until the sheet falls.

  2) The applied pressure is a first load corresponding to the mass (2200 kg) of one plate-shaped packaging container 10, a second load corresponding to the mass of the two plate-shaped packaging containers 10, and three Is set to a third load corresponding to the mass of the plate-like package container 10.

〔Experimental result〕
1) In the test bodies of the first to fourth examples, even with the first to third loads, the shock absorbing sheet 34 dropped from the aluminum plate immediately after the shock absorbing sheet 34 was directed to the lower surface side.

  2) In the test sample of the comparative example, since the shock absorbing sheet 34 is in close contact with the aluminum plate, even if the shock absorbing sheet is directed downward, the close contact is maintained for about 3 to 6 minutes. 34 dropped from the aluminum plate.

  As can be seen from the above comparative test, it was found that the use of the intermediate sheet 36 significantly improved the peelability as compared with the conventional plate-like package container.

  As described above, the plate-shaped packaging container 10 according to the embodiment has been described in detail. However, the present invention is not limited to the above-described embodiment, and various improvements and modifications may be made without departing from the gist of the present invention. Good. That is, the intermediate sheet 36 is not limited to the craft sheet, a sheet obtained by stretching the polypropylene material, the stainless steel sheet, and the polyethylene terephthalate material sheet.

  DESCRIPTION OF SYMBOLS 10 ... Plate-shaped body packaging container, 12 ... Glass plate laminated body, 14 ... Base, 15 ... Lower surface of base, 16 ... Plate-shaped body mounting plate, 18 ... Horizontal pressing member, 20 ... Support | pillar, 22 ... Opening part, 24 ... Hole part, 26: Lower part of support, 28 ... Upper end surface of support, 30 ... Convex part of upper end surface of support, 32 ... Recess, 34 ... Shock absorbing sheet, 34A ... Abutting surface, 36 ... Intermediate sheet

Claims (3)

A plate-shaped packaging container that is stacked up and down, a rectangular parallelepiped pedestal, a plate-shaped body mounting member that is mounted on the top surface of the pedestal and on which the plate-shaped body stack is mounted, A lower end of the pedestal that is detachably attached to the upper surface corner of the pedestal, and a support member provided with a buffering member provided on the upper end surface of the upper surface of the pedestal packing container that has a contact surface that comes into contact with the lower surface of the pedestal In a plate-shaped body packaging container provided with
An intermediate member is disposed between the abutting surface of the buffer member and the lower surface of the pedestal of the plate-shaped packaging container located on the upper stage where the abutting surface abuts. Plate-shaped body packaging container.   The plate-like packaging container according to claim 1, wherein the intermediate member is attached to the contact surface of the buffer member.   The said intermediate member is a plate-shaped body packaging container of Claim 1 attached to the lower surface of the said base of the plate-shaped body packaging container located in the said upper stage where the said contact surface of the said buffer member is contacted.

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