JP2007022660A - Packaging element and packaging material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging element and a packaging material capable of performing a positive holding of not only corner portions of a plate-like body such as a glass base plate and the like but also an intermediate portion or a part near the central part of the side edges and prevent the plate-like body from being vibrated during its transportation as much as possible. <P>SOLUTION: There is provided a packaging member 1, wherein four packaging members 2a, 2a, 2b and 2b have vertical pads 2aa (2ba) and lateral pads 2ab (2bb) formed substantially in an L-shaped section, each of the corners of a plurality of plate-like members G arranged side by side in a substantial upright state is inserted into a plurality of holding grooves 4, 8 arranged side by side at their inner walls and binding bands 3 are wound and set in band fitting grooves 5, 9 formed at their outer walls in parallel with each of the holding grooves 4, 8. The outer walls of the packaging members 2a, 2a, 2b and 2b have band setting grooves 5, 9 with slant bottom surfaces 5a, 5b, 9a and 9b where their locations corresponding to positions near the central parts of the side edges of the plate-like members G project relatively in an outward direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a packing body and a packing material for storing and holding a plurality of plate-like bodies made of a brittle material in a substantially upright posture.

  For example, glass plates used for manufacturing glass panels for various image display devices such as liquid crystal display (LCD), plasma display (PDP), electroluminescence display (ELD), field emission display (FED), and various electronic display functions A glass plate used as a substrate for forming an element or a thin film is usually conveyed as a package from a glass maker or the like to a display maker or the like in a state in which a plurality of sheets are stored and held as a set.

  Although this type of glass plate is thin and easy to break, it must be transported appropriately and inexpensively while maintaining high quality, so the packaging material used for its storage and holding is easy to manufacture and highly clean. Various characteristics such as safety, seismic retention, breakage resistance, high storage, high transportability, and ease of loading and unloading are required.

  In order to meet such a demand, for example, according to the following Patent Document 1, as shown in FIG. 6, the vertical pad portion 50a and the horizontal pad portion 50b are substantially L-shaped in cross section, A packaging material 50 for a glass substrate having a plurality of substrate holding grooves 51 on the inner wall and a band mounting groove 53 for mounting a binding band 52 on the outer wall is disclosed. And the packing body 60 manufactured using this packing material 50 forms a cube by arranging a plurality of glass substrates G in parallel at predetermined intervals, and the corners of each glass substrate G are formed on the packing material 50. The rectangular portion of the cube is inserted into the substrate holding groove 51 and is fitted and fixed by each packing material 50.

  The packaging material having such a structure is less expensive in material and production than conventional so-called box-type packaging materials, can be packed with the same glass substrates of various dimensions, There are advantages such as being able to reduce the volume, facilitating cleaning and drying even when it is contaminated by repeated use by passing, and not requiring a huge cleaning facility. In addition to these, vibration of the glass substrate during transportation can be suppressed, storage and transportation efficiency in the state in which the glass substrate is accommodated are high, and contact with the adjacent glass substrate during storage and removal of the glass substrate is possible. There is also the advantage that there is no risk of interference and the operation can be easily performed.

  By the way, in manufacturing the above-mentioned various image display devices, a technique in which a plurality of glass panels are produced from a single glass sheet has been adopted, and in connection with this, a material that is molded and processed by a glass manufacturer. At present, plate glass is being promoted to be large. More specifically, for example, the size of a glass panel of a liquid crystal display is about 10 to 20 inches diagonally, but for the purpose of reducing manufacturing costs and improving production efficiency (throughput), Since the multi-system in which a large number of glass panels are made in the base glass has been adopted, attempts have been made to make the base glass manufactured by glass manufacturers as large as possible. Specifically, in the initial stage of practical mass production, the size of the base glass was about 300 × 400 mm, but after that, with the increase in the number of glass panels taken, the size of 370 × 470 mm, 550 × 650 mm The size of the glass plate is increasing to a size of 680 × 680 mm, etc., and a glass plate having a size of about 1000 × 1200 mm is now being manufactured.

Japanese Patent No. 2916836

  However, due to the increase in the size of the base glass as described above, it becomes difficult to handle it, and it becomes necessary to consider packing and transportation more and more, and it has been left to the conventional packing method using packing materials. Then, the following problems occur.

  That is, in the conventional packing material 50 illustrated in FIG. 6, the depth of the band mounting groove 53 formed on the outer wall is between the corner portion 50c and the end portion 50d on the side away from the corner portion 50c. It is the same in any position. In other words, the bottom surfaces of the band mounting grooves 53 of the four packing materials 50 that are fitted to the square portions of the glass substrates G correspond to the respective one ends of the four side edges of the glass substrate G. From the part to the part corresponding to the other end, it is formed as a surface along a straight line.

  Due to this, under the condition that the binding band 52 is wound around the band mounting groove 53 of the four packing materials 50, the corner portion (side) of the glass substrate G from the periphery of the corner portion 50c of each packing material 50 Although a sufficient amount of binding force acts on the periphery of the edge of the edge), the periphery of the edge 50d on the side away from the corner 50c of each packing material 50 to the periphery of the center of the side edge of the glass substrate G The cohesive force acting on is in a state where it is insufficient. This is because the binding band 52 is stretched around the corner portion 50c of each packing material 50 as a fulcrum, so that the binding band 52 glasses the packing material 50 around the center between the corner portions 50c. This is because the pressing force to be pressed against the substrate G is insufficient.

  For this reason, it becomes difficult to reliably hold the periphery of the central portion of each side edge of the glass substrate G by the packing material 50, and vibrations of the glass substrate G during transportation cannot be properly suppressed, and the glass substrate G is cracked. There is a drawback that dangers such as these occur. Such a problem becomes more prominent as the glass substrate G becomes larger as described above.

  The present invention has been made in view of the above circumstances, and can reliably hold not only a corner portion of a plate-like body such as a glass substrate but also an intermediate portion or a peripheral portion of a side edge thereof. It is a technical problem to provide a packaging material and a packaging material, and to suppress vibrations of the plate-like body during transportation as much as possible.

  The present invention, which has been made to achieve the above technical problem, includes a plurality of parallel arrangements on the inner walls of four packing materials each having a vertical pad portion and a horizontal pad portion formed in a substantially L-shaped cross section. Insert each corner of a plurality of plate-like bodies arranged substantially upright in parallel into the holding groove of the book, and in the band mounting groove formed in parallel to the holding groove on the outer wall of each of the four packing materials In the packaging body in which the binding band is wound around, the edge of the side edge of the plate-like body is placed on the outer wall of the packaging material that holds the upper corner portion of the plate-like body and / or the outer wall of the packaging material that holds the lower corner portion It is characterized in that a band mounting groove having an inclined bottom surface projecting outward is formed in a portion corresponding to a position closer to the center portion of the side edge than a portion corresponding to the portion position.

Here, the “inclined bottom surface” is not limited to the case where the bottom surface is a flat inclined surface, but the inclined bottom surface is constituted by a set of a plurality of convex portions having different outward projecting dimensions, for example. Or a case where the inclined bottom surface is constituted by a set of a plurality of steps, in other words, it is only necessary to be a bottom surface on which the binding band is inclined to contact (hereinafter referred to as “inclined bottom surface”). The same applies to. Furthermore, the “inclined shape” is meant to include an inclined shape with curvature. In addition, as for the inclined bottom face, it is preferable that the site | part corresponding to the center of the corresponding side edge of a plate-shaped object protrudes most outward. The inclined bottom surface may be formed over the entire length of the band mounting groove, or may be formed in a part of the band mounting groove.

  According to such a configuration, the outer wall of the packaging material that holds the upper corner of the plate-like body, the outer wall of the packaging material that holds the lower corner of the plate-like body, or the outer wall of the packaging material of both By winding and attaching the binding band to the band mounting groove having the inclined bottom surface, sufficient binding force can be obtained from the binding band through the packing material at a position near the center of the corresponding side edge of the plate-like body. Works. In other words, a sufficient pressing force for holding the position closer to the center of the corresponding side edge of the plate-like body by the packing material acts from the binding band. This is because the band attachment corresponding to the position closer to the center of the side edge of the plate-like body than the bottom portion of the band attachment groove corresponding to the end position (corner position) of the corresponding side edge of the plate-like body Since the bottom of the groove protrudes outward, the binding force that is greater than the binding band from the binding band to the center of the corresponding side edge of the plate-like body is exerted through the bottom surface protruding outward. It is by acting. As a result, the end of the corresponding side edge of the plate-like body is securely held by the corner portion of the packing material as in the conventional case, and the position near the center of the side edge is also outside the band mounting groove. It is reliably held through the bottom portion protruding in the direction, and the vibration of the plate-like body during transportation is effectively suppressed. Such an effect is prominent when the plate-like body is a large plate. The band mounting groove having the inclined bottom surface configured as described above is a pair of outer walls of the pair of packing materials that hold the upper corners of the plate-like body or a pair of lower-side corners of the plate-like body. It is preferably formed on the outer wall of the packing material, and more preferably formed on the outer wall of all four packing materials.

  In this case, the outer wall of the packaging material in which the band mounting groove having the inclined bottom surface is formed can be the outer wall of the vertical pad portion and / or the outer wall of the horizontal pad portion. In other words, if a band mounting groove having an inclined bottom surface is formed on the outer wall of the vertical pad portion of the packing material, a binding band is wound around the groove so as to be closer to the center of the vertical side edge of the plate-like body. Sufficient binding force acts from the binding band to the position (position closer to the center in the vertical direction) via the vertical pad portion. Moreover, if a similar band mounting groove is formed on the outer wall of the lateral pad portion of the packing material, the lateral pad from the bundling band is positioned closer to the central portion (lateral central portion) of the lateral side edge of the plate-like body. Sufficient binding force acts through the part. Furthermore, if the same groove for groove attachment is formed on the outer wall of both pad parts of the packing material, it is sufficient to place the band-like body from the binding band through both pad parts at positions closer to the center of the vertical side edge and horizontal side edge. A strong binding force acts. Therefore, when the plate-shaped body is long in the vertical direction, it is preferable to form the band mounting groove in the vertical surface pad portion. When the plate-shaped body is long in the horizontal direction, the horizontal surface pad is formed. It is preferable to form the band mounting groove in the portion, and when the plate-like body is a very large plate, it is preferable to form the band mounting groove in both pad portions.

  In the above configuration, the longitudinal dimension of the packing material that holds the lower corner portion of the plate-like body is ½ or more, preferably 2/3 or more, more preferably 3 of the longitudinal dimension of the plate-like body. / 4 or higher. In this way, even when the binding band is removed or the packaging material that holds the upper corners of the plate-like body is removed, the plate-like body is stably held by the packaging material that holds the lower corners. Therefore, even when using an automatic take-out device that automatically takes out the plate-like body, it can be taken out safely.

  From the same viewpoint, the longitudinal dimension of the packaging material that holds the lower corner portion of the plate-like body may be longer than the longitudinal dimension of the packaging material that holds the upper corner portion of the plate-like body. preferable.

  Furthermore, in order to appropriately cope with repeated use over a long period of use of the packing material, the packing material for holding both ends and / or the lower corner of the packing material holding groove arrangement direction for holding the upper corner portion of the plate-like body. It is preferable to attach a side wall portion at both ends in the holding groove arrangement direction to connect the vertical surface pad portion and the horizontal surface pad portion and to prevent the deformation of the angle formed by both the pad portions. Here, the “holding groove arrangement direction” means a direction orthogonal to the holding grooves and a direction in which the holding grooves are arranged in parallel. If comprised in this way, since the vertical pad part and horizontal pad part which were formed in the cross-sectional substantially L shape were connected by the side wall part, even if a packing material is used repeatedly over a long period of time The angle formed by the two pad portions does not unduly change, and the relative positional relationship between the two pad portions is maintained in a normal state even when the plate-shaped body is taken in and out. As a result, even when a large plate-like body is packed, it is possible to prevent the plate-like body from being displaced from the holding groove of the packing material as much as possible, and the plate-like bodies come into contact with each other. Cracks and the like can be prevented. Further, since both ends of the vertical pad portion and the horizontal pad portion in the holding groove arrangement direction are appropriately blocked by the side wall portions, the plate-like body inserted in the holding grooves existing at both ends is exposed. This is advantageous in avoiding the danger of the plate-like body breaking due to mechanical impact from the outside.

  In addition, the present invention forms a vertical pad portion and a horizontal pad portion in a substantially L-shaped cross section, and a plurality of holding grooves for inserting corner portions of a plurality of plate-like bodies arranged in parallel. In the outer wall of the vertical pad portion and / or the lateral pad in the packing material in which the band mounting groove for winding and mounting the binding band in parallel with the holding groove is formed on the outer wall. A band mounting groove having an inclined bottom surface protruding outward from the approaching side with respect to the corner portion that forms the boundary between both pad portions is formed on the outer wall of the pad portion from the corner portion. A band mounting groove having a non-inclined bottom surface connected to the band mounting groove having the inclined bottom surface is formed in the end side portion separated from the band, or any band mounting groove is formed in the end side portion. Characterized by not forming.

  According to such a structure, a remarkable effect is acquired when each corner | angular part of a some plate-shaped body is hold | maintained with four packing materials like the packing body which concerns on the above-mentioned invention. That is, in the case where a band mounting groove having an inclined bottom surface is formed on the outer wall of the vertical pad portion of the packing material according to the present invention, the peripheral position of the central portion of the vertical side edge of the plate-like body, and the vertical pad The peripheral position of the end portion on the separation side with respect to the corner portion of the portion corresponds. Therefore, only the corner portion of the plate-shaped body is mounted by winding and attaching the binding band to the band mounting groove in which the bottom surface portion on the side farther away from the approaching side with respect to the corner portion of the vertical pad portion protrudes outward. In addition, a sufficient bundling force also acts from the bundling band around the central portion of the vertical side edge. And when a similar band mounting groove is formed on the outer wall of the lateral pad portion of the packing material, and also when a similar band mounting groove is formed on the outer wall of both pad portions of the packing material, A sufficient bundling force acts on the position around the central portion of the corresponding side edge of the plate-like body to ensure the holding of the plate-like body, so that vibration of the plate-like body during transportation is effectively suppressed. .

  In this case, in order to facilitate the insertion of the plate-like body into the packaging material, the holding groove of the vertical surface pad portion is such that the end portion separated from the corner portion is gradually expanded toward the separation side. preferable.

  In the above invention, the packing material can be produced from various resin foams. However, if it is produced from foamed polyethylene or foamed polypropylene having a foaming ratio of 5 to 20 times, it can be easily molded by injection molding or the like. This is preferable in that it is difficult to deform, has a large buffering effect, and has a small amount of dust and low dust generation.

  As described above, according to the packaging body according to the present invention, the bottom surface of the band mounting groove formed on the outer wall of the packaging material that holds the upper corner portion and / or the lower corner portion of the plate-like body, Since the part corresponding to the position closer to the center part of the side edge of the body edge than the part corresponding to the end position of the side edge of the body has an inclined bottom surface protruding outward, the band mounting groove As a result, the end of the corresponding side edge of the plate-like body is not only securely held by the corner of the packing material as in the conventional case, but also the position near the center of the side edge is attached to the band. It is securely held through the bottom part protruding outward from the groove, and the vibration of the plate-like body during transportation is effectively suppressed, and the risk of cracking the plate-like body is drastically reduced. .

  In this case, the outer wall of the packing material in which the band mounting groove having the inclined bottom surface is formed is the outer wall of the vertical pad part, the outer wall of the horizontal pad part, or the outer walls of both pad parts. It is possible to appropriately cope with the shape and size of the plate-like body. Specifically, when the plate-like body is long in the vertical direction, the groove for mounting the band is formed in the vertical pad portion, and when the plate-like body is long in the horizontal direction, the horizontal pad is formed. When the band mounting groove is formed in the portion and the plate-like body is long in the vertical and horizontal directions, the band mounting groove is formed in each of the pad portions to meet the request of the plate-like body. The periphery of the central portion of the corresponding side edge can be efficiently and reliably held.

  Further, the longitudinal dimension of the packing material for holding the lower corner portion of the plate-like body is ½ or more (preferably 2/3 or more, more preferably 3/4 or more) of the longitudinal dimension of the plate-like body. If the longitudinal dimension of the packing material that holds the lower corner of the plate-like body is set longer than the longitudinal dimension of the packaging material that holds the upper corner of the plate-like body, the binding band The plate-shaped body is stably held by the packaging material that holds the lower corners even when the plate is removed or when the packaging material that holds the upper corners of the plate-shaped body is removed. Even when using an automatic take-out device that automatically takes out, it can be taken out safely.

  In addition, the vertical pad portion and the horizontal pad are provided at both ends in the holding groove arrangement direction of the packing material for holding the upper corner portion of the plate-like body and / or at both ends in the holding groove arrangement direction of the packing material for holding the lower corner portion. If the side wall portion is attached to prevent the undue deformation of the angle formed by the two pad portions by connecting to the pad portion, even if the packing material is used repeatedly over a long period of time, No unreasonable change in the angle occurs, the plate-like body is put in and out well, and the exposed part of the plate-like body inserted in the holding grooves at both ends is reduced, so that mechanical impact from the outside etc. Thus, problems such as cracking of the plate-like body are moderately avoided.

  On the other hand, according to the packaging material according to the present invention, the bottom surface of the band mounting groove formed on the outer wall of the vertical pad portion and / or the outer wall of the horizontal pad portion is approached to the corner portion that forms the boundary between both pad portions. In the case of holding the square portions of a plurality of plate-like bodies with this packing material, as in the packing body according to the above-described invention, since the inclined bottom surface protrudes outward from the side away from the side. In the same manner as described above, the position near the center of the corresponding side edge of the plate-like body is securely held, and the advantage that vibration of the plate-like body during transportation can be effectively suppressed is obtained.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a packaging body according to the first embodiment of the present invention, and FIGS. 2A and 2B are a front view and a longitudinal section showing one packaging material which is a component of the packaging body. 3A and 3B are a front view and a longitudinal side view showing another packing material that is a component of the packing body.

  As shown in FIG. 1, the packaging body 1 according to the present embodiment has a pair of lower corners of the glass substrates G in a state where a plurality of glass substrates G of about 10 to 100 are arranged in parallel. Are held by the lower packing material 2a and each upper corner is held by a pair of upper packing materials 2b, and two polypropylene binding bands 3 are formed on the outer walls of the four packing materials 2a and 2b. The substrate G is wound along the outer peripheral edge. These packing materials 2a and 2b are both made from a polyethylene foam having an expansion ratio of 8 to 10 times. In the present embodiment, the glass substrate G has dimensions of 1200 × 1000 × 0.7 mm in length, width and thickness, and chamfered the outer periphery using a # 500 diamond wheel. A non-alkali glass substrate for liquid crystal display (OA-10 manufactured by Nippon Electric Glass Co., Ltd.) is used. The entire package 1 is covered with a bag (not shown) made of polyvinyl or the like for dust prevention.

  As shown in FIGS. 2 (a) and 2 (b), the lower packing material 2a is formed by integrally forming a vertical surface pad portion 2aa and a horizontal surface pad portion 2ab into a substantially L-shaped cross section on its inner wall. Is formed with a plurality of holding grooves 4 into which the lower corners of a plurality of glass substrates G are inserted, and a plurality of (two in the illustrated example) binding bands 3 are wound around the outer wall. This (two in the illustrated example) band mounting groove 5 is formed. In the present embodiment, the side wall portions 6 are integrally attached to both ends of the vertical pad portion 2aa and the horizontal pad portion 2ab in the holding groove arrangement direction. The side wall 6 has a right side having a hypotenuse that connects an end 2ax on the side away from the corner 2ac of the vertical pad 2aa and an end 2ay on the side away from the corner 2ac of the horizontal pad 2ab. It has a triangular shape. The lower packing material 2a is 850 mm in length from the corner portion 2ac to the end portion 2ax on the side of the vertical pad portion 2aa, and the side of the side pad portion 2ab on the side away from the corner portion 2ac. The dimension to the end 2ay is set to 390 mm, the width dimension (the dimension of holding groove arrangement direction) is 520 mm, and the wall thickness is 35 mm.

  In order to facilitate the insertion of the glass substrate G, the uppermost portion of the holding groove 4 in the vertical pad portion 2aa is gradually expanded upward. The band mounting groove 5 is continuous from the outer wall of the vertical pad portion 2aa to the outer wall of the horizontal pad portion 2ab, and the bottom surface 5a of the band mounting groove 5 in the vertical pad portion 2aa is a corner portion. It is an inclined bottom surface that gradually becomes shallower as it moves from 2ac to the end 2ax on the far side. In the illustrated example, a band mounting groove 5 is formed excluding the peripheral region 2ax peripheral area of the longitudinal pad portion 2aa, and the boundary between the formed portion and the non-formed portion of the band mounting groove 5 is formed. Is a position corresponding to a substantially central portion in the vertical direction of the glass substrate G inserted into the holding groove 4. The band mounting groove 5 (5a) of the vertical pad portion 2aa may be formed over the entire length from the corner portion 2ac to the end portion 2ax on the far side. When the band mounting groove 5 (5a) extending over the entire length in the vertical direction is formed in the vertical pad portion 2aa in this way, the peripheral region of the end portion 2ax on the side away from the corner portion 2ac is the non-inclined bottom surface. The portion excluding the peripheral region of the end 2ax may be the inclined bottom surface 5a similar to the above.

  On the other hand, the bottom surface 5b of the band mounting groove 5 in the lateral surface pad portion 2ab is an inclined bottom surface that gradually becomes shallower as it moves from the corner portion 2ac to the end portion 2ay on the far side. The band mounting groove 5 (5b) in the pad portion 2ab is formed over the entire length from the corner portion 2ac to the end portion 2ay on the far side. The band mounting groove 5 (5b) of the lateral pad portion 2ab does not have to be formed over the entire length from the corner portion 2ac to the end portion 2ay on the far side, and the bottom surface 5b is entirely May not be inclined.

  On the other hand, as shown in FIGS. 3 (a) and 3 (b), the upper packing material 2b is formed by integrally forming a vertical pad portion 2ba and a horizontal pad portion 2bb into a substantially L-shaped cross section. Are formed with a plurality of holding grooves 8 into which the upper corners of a plurality of glass substrates G are inserted, and a plurality (two in the illustrated example) of binding bands 3 are wound around the outer wall. A plurality of (two in the illustrated example) band mounting grooves 9 are formed. And also about this upper side packing material 2b, the vertical pad portion 2ba and the horizontal pad portion 2bb at both ends in the holding groove arrangement direction, respectively, from the corner portion 2bc of the vertical pad portion 2ba and the horizontal pad portion 2bb. A right-angled triangular side wall portion 10 having a hypotenuse connecting the end portions 2bx and 2by on the separation side is integrally provided. The upper packing material 2b has a dimension of 170 mm from the corner portion 2bc to the end 2bx on the side of the vertical pad portion 2ba as a reference, and the side of the side pad portion 2bb on the side away from the corner 2bc. The dimension to the end 2by is set to 450 mm, the dimension in the width direction (dimension in the holding groove arrangement direction) is set to 520 mm, and the wall thickness is set to 35 mm.

  The uppermost portion of the holding groove 8 in the vertical pad portion 2ba is also gradually expanded upward for the purpose of facilitating the insertion of the glass substrate G. Further, the band mounting groove 9 of the upper packing material 2b also extends from the outer wall of the vertical pad portion 2ba to the outer wall of the horizontal pad portion 2bb, and the bottom surface of the band mounting groove 9 in the vertical pad portion 2ba. 9a is an inclined bottom surface that gradually becomes shallower as it moves from the corner portion 2bc to the end portion 2bx on the far side, and the bottom surface 9b of the band mounting groove 9 in the lateral pad portion 2bb is also from the corner portion 2bc. It is an inclined bottom surface that gradually becomes shallower as it moves to the end 2by on the separation side. In addition, about the form of these bottom surfaces 9a and 9b, the deformation | transformation aspect similar to the matter described about the said lower side packing material 2a is possible.

  The square portions of the plurality of glass substrates G are respectively inserted into the holding grooves 4 and 8 of the four lower and upper packing materials 2a and 2b, and the binding band 3 is inserted into the band mounting grooves 5 and 9, respectively. As shown in FIG. 1, the package 1 obtained by winding and mounting includes a vertical intermediate portion (a portion including a substantially central portion in the vertical direction) of the glass substrate G and a horizontal intermediate portion (lateral direction of the glass substrate G). The binding band 3 protrudes outward at a portion corresponding to (substantially the central portion). Therefore, a sufficient binding force (holding force) acts on the corner portion of the glass substrate G from the binding band 3 via the corner portions 2ac and 2bc of the packaging materials 2a and 2b, and at the same time, the packaging materials 2a and 2b Sufficient binding force (holding force) also acts on the middle part of the vertical side edge and the side edge of the glass substrate G through the edges 2ay and 2by around the side away from the corner parts 2ac and 2bc. become. That is, the bottom surface portions of the band mounting grooves 5 and 9 corresponding to the intermediate portions of the vertical side edge and the horizontal side edge of the glass substrate G are the end portions (corner portions) of the vertical side edge and the horizontal side edge of the glass substrate G. ) Protrudes outward from the respective bottom surface portions of the band mounting grooves 5 and 9 corresponding to), and a large binding force acts from the binding band 3 through the bottom surface portion protruding outward. Thereby, even if the glass substrate G is a large plate, the vertical intermediate portion and the horizontal intermediate portion are securely held as compared to the conventional case, and vibration of the glass substrate G during transportation is effectively suppressed. In addition, the risk of cracking of the glass substrate G is avoided as much as possible.

  FIG. 4 is a perspective view showing a packaging body 1 ′ and packaging materials 2a ′ and 2b ′ used for the packaging body 1 ′ according to the second embodiment of the present invention. This second embodiment is different from the first embodiment described above in that a total of four packing materials 2a ′ and 2b ′ disposed on the square portions of the plurality of glass substrates G are respectively mutually connected. They are the same or substantially the same size and shape, and the side walls (6, 10) are not formed on these packing materials 2a ′ and 2b ′. The inclined bottom surfaces of the band mounting grooves 5 ′ and 9 ′ formed on the outer walls of the packing materials 2a ′ and 2b ′ are the same as those described in the first embodiment. According to such a configuration, not only in the horizontal direction of the glass substrate G but also in the vertical direction, the binding band 3 ′ protrudes outward in the vicinity of the central portion, and through the protruding portion, the horizontal direction of the glass substrate G and A sufficient binding force acts around the central portion in the vertical direction. Accordingly, in this case as well, not only the corner portion of the glass substrate G but also the periphery of the central portion in the horizontal direction and the vertical direction are reliably held, and the vibration of the glass substrate G during transportation and the occurrence of cracks resulting therefrom are generated. Etc. are effectively avoided.

  Fig. 5 is a perspective view showing a packing body 1 "and packing materials 2a" and 2b "used for the packing body 1" according to the third embodiment of the present invention. This third embodiment is the above-described second embodiment. The difference from the embodiment is that only the bottom surface of the band mounting groove 5 "formed in the pair of lower packaging materials 2a" of the total of the four packaging materials 2a ", 2b" is an inclined bottom surface, The bottom surface of the band mounting groove 9 "formed on the upper packaging material 2b" is a non-inclined bottom surface. In this case, the band formed on the lateral pad portion 2ab "of the lower packaging material 2a" The bottom surface (not shown) of the mounting groove 5 "is preferably an inclined bottom surface, but may be a non-inclined bottom surface. Separately from this, only the bottom surface of the band mounting groove 9 "formed in at least one of the vertical pad portion 2ba" and the horizontal pad portion 2bb "of the upper packing material 2b" is defined as an inclined bottom surface, The bottom surface of the band mounting groove 5 "formed in the lower packing material 2a" may be a bottom surface that is not inclined. According to such a configuration, the holding force by the binding band 3 "for the glass substrate G is slightly inferior to that of the first and second embodiments described above, but compared with the conventional case, the longitudinal direction of the glass substrate G or Holding to the periphery of the central portion in the lateral direction is appropriately ensured and can sufficiently contribute to suppression of vibration of the glass substrate G during conveyance.

  In the above embodiment, the present invention is applied to a packaging body for storing and holding a plurality of glass substrates and a packaging material used therefor, but also about other plate-like bodies made of a brittle material other than a glass substrate. In the same manner, the present invention can be applied.

  Further, in the above embodiment, the outer wall surfaces of the horizontal pad portions 2ab and 2bb of the lower packing material 2a and the upper packing material 2b are horizontal surfaces, and the vertical pad portions 2aa and 2ba of both packing materials 2a and 2b are Since the outer wall surface is a vertical surface, the band mounting grooves 5 and 9 of these pad portions have inclined bottom surfaces 5a, 5b, 9a and 9b formed by making the groove depths in the longitudinal direction different. In the case where the outer wall surface of the lateral surface pad portions 2ab, 2bb and the outer wall surface of the vertical surface pad portions 2aa, 2ba are inclined surfaces, etc., the same inclined bottom surfaces 5a, 5b, without different groove depths, etc. 9a, 9b can be formed.

It is a perspective view which shows the whole structure of the package which concerns on the 1st Embodiment of this invention. Fig.2 (a) is a front view of the lower packing material which is a component of the packing body based on the 1st Embodiment of this invention, FIG.2 (b) is the vertical side view. FIG. 3 (a) is a front view of an upper packing material that is a component of the packing body according to the first embodiment of the present invention, and FIG. 3 (b) is a longitudinal side view thereof. It is a perspective view which shows the whole structure of the package which concerns on the 2nd Embodiment of this invention. It is a perspective view which shows the whole structure of the package which concerns on the 3rd Embodiment of this invention. It is a perspective view which shows the whole structure of the package which concerns on a prior art example.

Explanation of symbols

1 Package
1 'package
1 "package
2a Packing material (lower packing material)
2a 'packing material (lower packing material)
2a "packing material (lower packing material)
2b Packaging material (upper packaging material)
2b 'packing material (upper packing material)
2b "packing material (upper packing material)
2aa Longitudinal pad section (vertical pad section of lower packing material)
2ab Horizontal pad part (Horizontal pad part of lower packing material)
2ac Corner (Corner of lower packing material)
2ba Longitudinal pad section (vertical pad section of upper packing material)
2bb Horizontal pad (Horizontal pad of the upper packing material)
2bc Corner (Upper packaging material corner)
3 Tying band
3 'Cable ties
3 "Binding band 4 Holding groove 5 Band mounting groove
5 'band mounting groove
5 "band mounting groove
5a Inclined bottom
5b Inclined bottom surface 6 Side wall 8 Holding groove 9 Band mounting groove
9 'Band mounting groove
9 "band mounting groove
10 Side wall part G Glass substrate (plate-like body)

Claims (8)

A plurality of sheets arranged in parallel in a substantially upright manner in a plurality of holding grooves respectively arranged in parallel on the inner walls of four packing materials in which the vertical pad portion and the horizontal pad portion are formed in a substantially L-shaped cross section. In the packaging body in which each corner of the plate-shaped body is inserted and the binding band is wound around the band mounting groove formed in parallel to the holding groove on the outer wall of the four packing materials,
The outer wall of the packaging material that holds the upper corner of the plate-like body and / or the outer wall of the packaging material that holds the lower corner of the side edge of the side edge of the plate-like body than the portion corresponding to the end position of the side edge. A packaging body characterized in that a band mounting groove having an inclined bottom surface projecting outward at a portion corresponding to a position closer to the center is formed.   2. The packaging according to claim 1, wherein an outer wall of the packaging material in which the band mounting groove having the inclined bottom surface is formed is an outer wall of the vertical pad portion and / or an outer wall of the horizontal pad portion. body. The packaging body according to claim 1 or 2, wherein the longitudinal dimension of the packaging material for holding the lower corner portion of the plate-like body is ½ or more of the longitudinal dimension of the plate-like body. The longitudinal dimension of the packaging material that holds the lower corner portion of the plate-like body is longer than the longitudinal dimension of the packaging material that holds the upper corner portion of the plate-like body. 4. The package according to any one of 3 above. A vertical pad portion and a horizontal pad portion are provided at both ends in the holding groove arrangement direction of the packing material holding the upper corner portion of the plate-like body and / or both ends in the holding groove arrangement direction of the packing material holding the lower corner portion. The package according to any one of claims 1 to 4, further comprising a side wall portion for preventing the undue deformation from occurring in an angle formed by the two pad portions by connecting the two. The vertical pad portion and the horizontal pad portion are formed in a substantially L-shaped cross section, and a plurality of holding grooves for inserting corner portions of a plurality of plate-like bodies arranged in parallel are arranged in parallel on the inner wall. And in the packaging material formed on the outer wall a band mounting groove for winding and mounting the binding band in parallel with the holding groove,
For attaching a band having an outer wall of the vertical pad portion and / or an outer wall of a horizontal pad portion, and an inclined bottom surface that protrudes outward from the approaching side with respect to a corner portion that forms a boundary between both pad portions. A groove is formed from the corner portion, and a band mounting groove having a non-inclined bottom surface connected to the band mounting groove having the inclined bottom surface is formed in an end side portion away from the corner portion, or None of the band mounting grooves is formed in the end side portion.   The packing material according to claim 6, wherein the holding groove of the vertical pad portion has an end portion separated from the corner portion gradually expanding toward the separation side.   The packing material according to claim 6 or 7, wherein the packing material is made of a resin foam having an expansion ratio of 5 to 20 times.

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