JP2012106793A - Transfer container for plate-like body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transfer container for containing a plate-like body such as a glass substrate in a horizontal state, the transfer container being capable of preventing crack damage inside a base part of a side wall even when a strong force is applied to the side wall of a container body due to vibration, drop impact or the like, thereby achieving excellent durability.SOLUTION: The transfer container includes an opening-upward container body 1 rectangular in plan view. On a peripheral edge part along a side wall inner face, of an upper face 13a of a bottom 13 of the container body 1, a recessed part 15 for avoiding of abutting on the bottom 13, of a peripheral edge of the plate-like body B contained on the bottom 13, wherein a bottom surface 15a on the outer peripheral edge side, of the recessed part 15 continues an inner surface of a side wall 14d via a circular-arc-shaped curved surface which avoids stress concentration when the bottom surface 15a on the outer peripheral edge side, of the recessed part 15 deforms outside the side wall 14d elastically.

Description

  The present invention relates to a container for transporting a plate-shaped body used for transporting and storing various glass substrates such as glass plates for glass, liquid crystal displays and plasma displays, panels such as touch panels, and other plate-shaped bodies. Is.

  Conventionally, as a transport container for storing and transporting various glass substrates such as base glass, liquid crystal display glass substrates, etc., panels such as solar battery panels and touch panels, and other impact-sensitive plates One plate-like body is formed in a longitudinal groove arranged at equal intervals on the inner surface of one opposite side wall of the container body. In general, those inserted one by one and supported in an upright state so as not to contact each other are stored.

  In recent years, due to an increase in demand for large-sized liquid crystal televisions and plasma televisions, large-sized glass substrates in which one or both of the vertical and horizontal directions exceed 100 cm have been adopted as glass substrates for televisions. Transport containers for transport are also becoming larger.

  However, in the conventional method of accommodating the glass substrate in an upright state by the vertical groove on the inner surface of the side wall, the glass substrate itself is bent and deformed by its own weight because of the large and heavy glass substrate, or the weight of the glass substrate is a container. When the load is concentrated on the bottom of the main body, the bottom of the container is compressed and deformed, and the cushion function and the impact relaxation function may be impaired.

  In order not to cause such a problem, as illustrated in Patent Documents 1 to 3, glass substrates and protective sheets are alternately stacked and stored in a horizontal state in the container body, and each glass substrate is protected. A container for conveyance which has been received by a surface via a sheet has also appeared.

  As described above, in the case of a transport container that stores a plate-like body such as a glass substrate in a horizontal state, the stored plate-like body is particularly affected by the vibration and impact during transportation at the corners of the peripheral edge. It is easy to receive, and there exists a possibility that damage may arise by contact with the bottom face of a container main body, or the side wall inner surface.

  Therefore, various devices have been made. For example, in Patent Document 1, in a glass substrate transport box, an abutting member made of a flexible synthetic resin foam is provided on the inner wall of the box body (container body). By placing the peripheral edge of the glass substrate in contact therewith, each side and corner portion of the peripheral edge is held so as not to be in direct contact with the inner surface of the side wall. The shock is mitigated and protected against vibration in the surface direction.

  Further, in the case of Patent Document 2, in order to protect the glass substrate stored in the glass substrate transport box, the corner portion of the glass substrate stored is prevented from coming into contact with the corner portion of the box body. In addition, by forming notch spaces at the four corners of the main body and forming concave grooves at intervals on the inner surface of the side wall of the main body, each side of the peripheral edge of the glass substrate contacts the inner surface of the side wall over the entire length. In addition, concave grooves are formed in the peripheral edge portion including the four corners of the inner bottom surface to prevent the edge of the glass substrate from contacting the inner bottom surface.

  In the case of Patent Document 3 as well, a concave groove is formed in the peripheral portion of the bottom surface of the main body so that the peripheral edge of the plate-shaped body does not contact the bottom surface, and a buffer contact member is provided on the inner surface of the side wall. By bringing the peripheral edge of a plate-like body such as a glass substrate into contact therewith, each side or corner of the peripheral edge of the plate-like body is prevented from coming into direct contact with the inner surface of the side wall.

  However, in any of the above cases, the prevention of cracks due to deformation of the container main body due to vibration during transportation and transportation work, drop impact from the side, or the like is not satisfactory.

  To explain this point, for example, as shown in FIG. 16, notches 117 are formed inside the side walls at the four corners of the container body 101, and the perimeter of the upper surface 113 a of the bottom 113 includes the notches 117. In which a concave portion 115 is provided to prevent contact with a corner portion or a peripheral bottom surface of the plate-like body B to be accommodated, and a boundary portion between the bottom surface 115a of the concave portion 115 and the inner surface of the side wall 114. However, as shown in FIG. 17, when the plate body B is accommodated and packaged as shown in FIG. When the load of the plate-like body B, which is a stored item, acts on the side wall 114 due to the fall of the side wall 114, for example, when the side wall 114 is deformed outward as shown in FIG. With the inner surface of the side wall 114 Shear occurs stress is concentrated to the field 116, cracked C as in FIG. 18 (b), repeatedly force acts, may be damaged, there is a problem in durability.

JP 2007-314236 A JP 2008-239210 A JP 2009-269610 A

  The present invention has been made in order to solve the above-mentioned problems, and is a container for transporting a plate-shaped body for storing and transporting a plate-shaped body such as a glass substrate, a solar battery panel, and a touch panel in a flat state. As a result, the peripheral edge of the stored plate-like body can be well protected, and when the container side wall is subjected to a strong force due to vibration or drop impact during transportation or transportation, the outward deformation occurs. In addition, the present invention provides a plate-shaped container for transportation that can prevent crack damage inside the side wall base and has excellent durability.

  The plate-shaped conveyance container of the present invention that solves the above problems has a flat rectangular container main body formed with a storage portion that opens upward, and the storage portion has one or a plurality of plate-shaped containers. A container for transporting and transporting the body in a flat state, wherein the peripheral edge of the container body along the side wall inner surface of the bottom surface of the storage part is brought into contact with the peripheral edge of the plate-like body stored on the bottom part. A concave portion for avoiding is formed, and the outer edge side of the bottom surface of the concave portion is continuous with the inner surface of the side wall with a rounded curved surface capable of avoiding stress concentration during deformation of the side wall.

  According to the transport container of the present invention, the plate-like body such as a glass substrate housed in the container main body is in contact with the upper surface of the bottom at the position of the recess that the peripheral edge of the plate body has on the peripheral edge of the container main body. Even if the peripheral part of the container body is slightly bent and deformed due to vibration or drop impact during handling such as transportation or transportation work, the peripheral part of the plate-like body contacts the upper surface of the bottom part. There is nothing.

  In addition, due to a drop impact during handling during transportation or transportation work, for example, when an internal load is applied to the side wall due to a plate-like body being stored, and the side wall is about to deform outward, the bottom surface of the recess Since the boundary part where the inner wall and the side wall inner surface are continuous with a rounded curved surface, the force acting on the boundary part is dispersed, and deformation that warps outward of the side wall can be allowed. Crack generation can be prevented.

  The said container for conveyance has the one storage part in which the said container main body piles up and stores several plate-shaped bodies in a flat state, and with respect to the upper end part of the side wall in the outer peripheral part of this container main body And a lid that is fitted and attached. In addition, the container body has one storage part that stores one or several plate-like bodies in a flat state, and the container body in a state where the plate-like body is stored in the storage part has no lid. It can be stackable.

  In any case, it is preferable from the viewpoint of protecting the peripheral edge of the plate-shaped body to be stored that the concave portion at the peripheral edge on the upper surface of the bottom of the storage part is continuously formed along the inner surface of the side wall. .

  In particular, a cutout portion extended from the inner side surface of the side wall is provided on the inner surface of the side wall at the four corners of the storage portion of the container main body, and the bottom portion of the cutout portion is formed as an extended recess that is continuously extended from the recess. When the outer edge side of the bottom surface of the extended recess is continuous with the inner surface of the side wall with a rounded curved surface continuous from the recess, it is possible to avoid the corner portion of the plate-like body coming into contact with the inner surface of the side wall by the notch, The occurrence of cracks at the boundary between the bottom surface of the extended recess and the inner surface of the side wall due to the notch can also be prevented.

  In the plate-like container, the depth of the recess is 1/5 or more of the storage depth of the container body and 1/2 or less of the bottom wall thickness, and the bottom surface of the recess and the inner surface of the side wall It is preferable that the radius of the rounded curved surface at the boundary between and is 1/5 or more of the depth of the storage portion, and not to exceed the depth of the recess. Thereby, the depth of the said recessed part can be made larger than before, and the radius of the curved surface of the said continuous part can also be set large. The radius of the rounded curved surface is particularly preferably the same as the depth of the recess.

  Further, it is preferable that the inner wall surface of at least one side surface of the container main body storage portion has a tapered shape inclined outward from the lower end toward the upper end, whereby the side wall is further deformed outward. This facilitates and increases the effect of stress dispersion, and allows a certain amount of horizontal displacement of the stored plate-like body.

  Further, the present invention provides a plurality of container bodies in which the container body is formed with a plurality of storage portions arranged in parallel in at least one direction in the vertical and horizontal directions, and a plate-like body is stored in each storage portion. Can be stacked without a lid.

  In addition, fitting means having an uneven shape corresponding to each other is provided at the upper end of the side wall of the outer periphery of the container body and the peripheral edge of the bottom surface of the bottom of the container body, and fits when stacking a plurality of container bodies. It can be provided as follows.

  In these cases as well, the plate-like body stored in each storage section is held in a floating state without contacting the upper surface of the bottom at the position of the recess, and the peripheral portion of the container body is slightly bent and deformed by vibration, drop impact, etc. However, the peripheral edge of the plate-like body does not contact the top surface of the bottom portion, and when the side wall is deformed outward, the boundary portion where the bottom surface of the recess and the inner surface of the side wall are continuous is a curved surface. For this reason, the force acting on the boundary portion is dispersed, and cracks at the boundary portion can be prevented.

  In the plate-like container, the depth of the concave portion is not less than 1/5 of the storage depth of the container main body and not more than 1/2 of the bottom wall thickness. It is preferable that the radius of the rounded curved surface at the boundary is 1/5 or more of the depth of the storage portion and not to exceed the depth of the recess.

  In the transport container according to the invention, a flexible storage portion that stores the flexible portion connected to the plate-like body may be formed continuously to one side of each storage portion. Thereby, a plate-shaped body provided with a flexible part can be stored with good stability.

  As described above, according to the container for transporting a plate-like body of the present invention, while the plate-like body such as a glass substrate is housed, it is possible to prevent the peripheral edge of the plate-like body from coming into contact with the upper surface of the bottom, Even when a force to deform outward is applied to the side wall of the container main body due to vibration or drop impact during handling such as transportation and transportation, cracks may occur at the boundary between the bottom surface of the recess and the inner surface of the side wall. This can be prevented and durability can be improved. Consequently, it is not necessary to excessively increase the wall thickness of the container body.

It is a perspective view of the container main body and lid which show the Example (1st Example) of the container for conveyance of the plate-shaped body of this invention. It is a top view of a container main body. It is sectional drawing of the L1-L1 line | wire of a container main body. It is sectional drawing of the L2-L2 line of a container main body. It is a partial expanded sectional view of a previous figure. It is sectional drawing of the half part of the use condition which accumulated and accommodated the plate-shaped object. It is a top view which shows the other Example (2nd Example) which makes the accommodation form of a plate-shaped object different. It is a front view same as the above. It is sectional drawing same as the above. It is a perspective view of the container main body which shows further another Example (3rd Example) of this invention which differs in the storage form of a plate-shaped object. It is a top view of a container main body same as the above. It is a bottom view of a container main body same as the above. It is sectional drawing of the L3-L3 line | wire of a container main body same as the above. It is sectional drawing of the L4-L4 line | wire of a container main body same as the above. It is sectional drawing of the use condition which accommodated the plate-shaped body same as the above. It is a top view of the container main body of the conventional container for conveyance. It is a fragmentary sectional view of the use condition of a container same as the above. It is explanatory drawing of the deformation | transformation state (a) and crack generation state (b) of a container same as the above.

  Next, embodiments of the present invention will be described based on examples shown in the drawings.

  FIGS. 1-6 has shown the Example (1st Example) of the container for conveyance of the plate-shaped object concerning this invention. The transport container A1 of this embodiment is opened upward, and a plate-like body B such as a glass substrate to be stored is overlapped between each plate-like body via a protective sheet (not shown) for spacers. The container body 1 has a flat rectangular shape or a square flat rectangular shape that can be stored in the container, and a lid body 3 that is fitted to and attached to the container main body 1.

  As an attachment structure of the lid body 3 to the container body 1, a notch step portion 12 is formed on the outside at the opening end portion at the upper end of the side wall of the container body 1, leaving the convex edge 11 on the inside, and the lid On the lower surface side of the peripheral edge portion 31 of the body 3, a downward-facing fitting wall portion 32 that fits and contacts the notch step portion 12 outside the convex edge 11 at the opening end portion is suspended. The lid 3 can be held in a state of being attached to the container main body 1 by the fitting by the fitting wall portion 32.

  The container main body 1 is formed of a synthetic resin foam having a buffering property, and the storage portion 10 is formed by the four side walls 14 a, 14 b, 14 c, and 14 d that rise from the bottom portion 13. The storage unit 10 is formed to a depth (storage unit depth D1) that can store a plurality of plate-like bodies B stacked via a protective sheet. Usually, depending on the thickness of the plate-like body B, for example, in the case of the plate-like body B such as a glass substrate having a thickness of 2 to 5 mm, it is relatively shallow so that 10 sheets or more, preferably about 10 to several tens of sheets can be accommodated. It is formed.

  On the periphery of the upper surface of the bottom 13 of the container body 1, that is, the peripheral edge along the four side walls 14a, 14b, 14c, 14d of the bottom upper surface 13a of the storage part 10, the periphery of the plate-like body B stored on the bottom 13 A recess 15 for avoiding the contact is formed. The recess 15 is preferably formed continuously over the entire circumference along the inner surfaces of the side walls 14a, 14b, 14c, and 14d. However, the shape of the peripheral edge of the plate-like body B, for example, the attached state of the accessory, Depending on the arrangement state of the storage unit 10, it can be formed intermittently in the circumferential direction, or can be formed excluding required side portions.

  The depth D2 of the concave portion 15 is usually １ ／ or more of the storage portion depth D1 with respect to the upper surface 13a of the bottom portion 13 and ½ or less of the thickness of the bottom portion 13, preferably at least 5 mm or more. More preferably, it is formed by being dropped to a depth of about 10 to 20 mm. And the outer edge side of the bottom face 15a of the said recessed part 15 is following the side wall inner surface with the rounded curved surface which can avoid the stress concentration at the time of the elastic deformation to the outward of the side walls 14a, 14b, 14c, 14d. That is, the outer edge side continuous with the inner surface of the side wall forms a rounded curved surface. Reference numeral 16 denotes a boundary portion of the curved surface.

  Further, at the four corners of the storage part 10 by the side walls 14a, 14b, 14c, 14d of the container body 1, there are formed vertical notches 17 extended from the inner side of the side walls, and the bottom of the notches 17 Is formed as an extended concave portion 18 continuously extended from the concave portion 15 at the same depth as the concave portion 15, and the outer edge side of the bottom surface 18 a of the extended concave portion 18 is the same as the bottom surface 15 a of the concave portion 15. Furthermore, the side walls 14a, 14b, 14c, and 14d are continuous with the inner surface of the side wall with a rounded curved surface that can avoid stress concentration during elastic deformation outward. Reference numeral 19 denotes a boundary portion of the curved surface.

  The radius R of the rounded curved surface of the boundary 16 between the bottom surface 15a of the concave portion 15 and the inner surfaces of the side walls 14a, 14b, 14c, and 14d, and the radius R of the rounded curved surface of the boundary portion 19 between the bottom surface 18a of the extended concave portion 18 and the inner surface of the side wall are When the depth D2 of the concave portion 15 is not less than 1/5 of the storage portion depth D1 and not more than 1/2 of the thickness of the bottom portion 13, the storage portion depth D1 is usually the same as the concave portion depth D2. The curvature center O of the radius R is set so as not to be positioned above the upper surface 13a of the bottom portion 13 so that it is not greater than 1/5 of the depth D2. In this way, in the heavy duty transport container that accommodates the required number of plate-like bodies B, the depth of the concave portion 15 can be set larger than the conventional one, and the radius of the continuous portion 16 can be increased. The radius R of the curved surface can also be set large. In addition, the space between the inner surfaces of the side walls facing each other above the bottom upper surface 13a of the storage unit 10 serving as the mounting surface of the plate-like body B is not narrowed, and a necessary storage unit space similar to the conventional one can be secured. Particularly preferably, the radius R of the rounded curved surface is the same (same size) as the recess depth D2. As a result, the concave bottom surface 15a or the bottom surface 18a of the extended concave portion 18 continues to the inner surface of the side wall with one rounded curved surface, and the effect of stress dispersion is increased.

  Of the four side walls 14a, 14b, 14c, and 14d, the inner surface of at least one side wall of the storage portion 10, for example, the inner surfaces of the opposite side walls 14a, 14c or 14b, 14d, is shown by a chain line in FIG. Furthermore, it can be set as the inclined surface of the taper shape etc. which inclined outward toward the upper end from the lower end. In this case, the side wall is further easily deformed outward, and the effect of stress dispersion is increased.

  The side wall 14a, 14b, 14c, 14d of the container body 1 has at least one opposite side wall, for example, the inner surface of each side wall 14a, 14b, 14c, 14d as shown in FIG. At least one notch recess 20 for storing and taking out the plate-like body B having a groove shape in the vertical direction is provided at a required portion such as a central portion in the direction. The notch recess 20 has a groove shape with a depth extending from the upper end of the side wall to the bottom surface 15a of the recess 15 of the bottom portion 13, and at the portion of the notch recess 20 when the plate body B is stored and taken out. So that the fingertip can be hung under the lowermost plate B or inserted into the upper part of the bottom 13 by inserting a mechanical locking means under the lowermost plate B. It can be locked.

  Also at the location of the notch recess 20, the boundary from the recess bottom surface 15a to the inner surface of the notch recess 20 is formed to be continuous with the same rounded curved surface as described above.

  The lid 3 is formed of a synthetic resin foam having a buffer property similar to that of the container body 1 and, as described above, a fitting wall with respect to the fitting ridge 11 for fitting at the opening end of the container body 1. It is provided so that it can be attached by fitting the portion 32.

  In the case of the figure, a plate-like shape is housed on the lower surface of the lid 3 in the peripheral portion along the inner surface of the fitting wall portion 32 of the peripheral portion 31 in the same manner as the concave portion 15 of the bottom upper surface 13a of the container body 1. Concave portions 33 that avoid contact with the peripheral edge of the body B are formed continuously in the circumferential direction. When attached to the container body 1, the upper ends of the side walls 14 a, 14 b, 14 c, and 14 d of the container body 1 are in contact with the bottom surface of the recess 33. The upper surface 3a of the peripheral edge portion 31 of the lid 3 is provided with a convex edge 34 for fitting at the time of stacking, and the peripheral edge of the bottom surface 13b of the bottom portion 13 of the container body 1 when stacking the transport containers A1. The portion 13c is placed in contact, and the inner portion of the lower surface 13b is formed to fit inside.

  Reference numerals 29 and 39 in the figure denote belt-hanging recesses formed in a groove shape on the bottom surface of the bottom of the container body 1 and the convex edge 34 of the peripheral edge 31 of the lid 3. Reference numeral 40 denotes a handle portion.

  As the constituent material of the container body 1 and the lid 3, polystyrene, high impact polystyrene, styrene-ethylene copolymer, styrene-maleic anhydride copolymer, polystyrene resin such as styrene-acrylonitrile copolymer, polyethylene, Foams of various synthetic resins such as polyolefin resins such as polypropylene and ethylene-vinyl acetate copolymer, and polyester resins such as polylactic acid and polyethylene terephthalate can be used. Especially, the molded object by the bead foam of the composite resin containing a polystyrene-type resin and a polyolefin-type resin is used suitably. A composite resin bead foam containing a polystyrene resin and a polyolefin resin is obtained by polymerizing a polyolefin resin particle with a styrene monomer and then steam-heating the expandable resin particles impregnated with a foaming agent. A molded body can be obtained.

  According to the container A for transporting a plate-like body according to the first embodiment described above, a plate-like glass, various glass substrates for liquid crystal display, etc., a panel such as a touch panel, and other plate-like bodies B are accommodated. At this time, the protective sheet for the spacer having a thickness of 0.2 to 5.0 mm and the plate-like body B are alternately stacked and stored on the bottom portion 13 in the container body 1. After storing the plate-like body B in this manner, the lid body 3 is attached to the container body 1. Then, the entire transport container A is belted (not shown) and used for transportation or the like.

  In such a use, the plate-like body B accommodated in the transport container A1 is floated especially at the position of the recess 15 that the peripheral edge of the lowermost plate-like body B has in the peripheral portion of the upper surface 13a of the bottom portion 13. It is held in the state. Therefore, the periphery of the plate-like body B is held without contacting the top surface of the bottom due to vibration during transportation. When the recess 15 is continuous over the entire circumference in the circumferential direction, the peripheral edge of the plate-like body B is held without contacting the top surface of the bottom over the entire circumference. In addition, at the four corners of the side wall 14a, 14b, 14c, 14d of the container body 1, an expanded notch 17 is provided inside the side walls 14a, 14b, 14c, 14d. Since it is formed as the extended recess 18 that is continuous with the recess 15, the corner portion of the stored plate-like body B is held without contacting the inner surface of the side wall, and the corner portion can be prevented from being damaged.

  In addition, in the case of the transport container A1 of the embodiment, the outer edge side of the bottom surface 15a of the recess 15 and the outer edge side of the bottom surface 18a of the expansion recess 18 are respectively outward of the side walls 14a, 14b, 14c, 14d. It is continuous with the inner surface of the side wall with a rounded curved surface that can avoid stress concentration during elastic deformation. Therefore, in handling such as transportation, when an impact due to a side drop or the like acts and a force that warps the side walls 14a, 14b, 14c, and 14d acts outwardly, the bottom surface 15a of the recess 15 and the extended recess The force acting on the boundary portions 16 and 19 can be dispersed by the rounded curved surfaces of the boundary portions 16 and 19 between the bottom surface 18a of the 18 and the inner surface of the side wall, and to some extent outward of the side walls 14a, 14b, 14c and 14d. The warp deformation of the resin can be allowed, and the occurrence of cracks at the boundary portions 16 and 19 can be suppressed. As a result, even if the container is made of a synthetic resin foam, the separation of the side walls due to the cracks can be prevented, and the durability can be improved. Can be increased. Therefore, it is not necessary to increase the wall thickness of the container body 1 excessively, thereby increasing the strength of the foamed resin material and contributing to the reduction in the foaming ratio and the thickness of the foamed resin material.

  FIGS. 7-9 has shown the other Example (2nd Example) of the container for conveyance of the plate-shaped object of this invention. In the configuration of the container main body 1 of this embodiment, the components common to the above-described embodiment are denoted by the same reference numerals and briefly described as necessary, and are mainly different from the above-described embodiment. Will be described.

  In the case of the transport container A2 of this embodiment, the flat rectangular container body 1 is formed from the same synthetic resin foam as described above, and the four side walls 14a, 14b, 14c, and 14d are used as a frame for stacking. Several plates having a relatively shallow storage unit 10 and stacked on the bottom 13 of the storage unit 10 via a sheet of glass substrate or panel to be transported or a protective sheet (a spacer that also serves as a protection) The body B is stored in a flat state and is formed, for example, stacked and packaged.

  As in the above-described embodiment, the peripheral edge of the upper surface 13a of the bottom portion 13 of the storage portion 10 along the inner surface of the side wall 14a, 14b, 14c, 14d is avoided from contacting the peripheral edge of the plate-like body B to be stored. A recess 15 is formed mainly continuously over the entire circumference. Also in this embodiment, the recess 15 does not necessarily have to be continuous over the entire circumference. Further, at the four corners of each side wall 14 a, 14 b, 14 c, 14 d of the container body 1, vertical cutout portions 17 are formed extending from the side wall inner surface side, and the bottom portion of the cutout portion 17 extends from the concave portion 15. It is formed as an extended recess 18 that is continuously extended at the same depth as the recess 15. The outer edge side continuous with the inner surface of the side wall of the bottom surface 15a of the concave portion 15 and the outer edge side of the bottom surface 18a of the extended concave portion 18 are stress concentrations during elastic deformation outward of the side walls 14a, 14b, 14c, 14d, respectively. The curved surface that can be avoided. Reference numerals 16 and 19 denote boundaries formed by rounded curved surfaces between the concave portion 15 and the extended concave portion 18 and the side wall inner surface.

  Also in this embodiment, the depth D2 of the recess 15 is not less than 1/5 of the storage portion depth D1, and the radius R of the rounded curved surface is not larger than the depth D2 of the recess 15. In the case of a shallow container for storing one plate-like body B, it is more preferable to set it to 1/2 or more of the length D1. As a result, the effect of stress dispersion is increased by the rounded curved surfaces of the boundary portions 16 and 19 that are continuous from the bottom surface 15a of the concave portion 15a or the bottom surface 18a of the extended concave portion 18 to the inner surface of the side wall. In the case of containers stacked without a lid, the height of the side wall, that is, the depth of the storage portion, can be set to several times the bottom wall thickness. In this case, the radius of the rounded curved surface can be set to 1/5 or less of the depth of the storage portion as long as stress concentration can be prevented.

  In addition, although illustration is omitted, in the state where a similar concave portion is formed on the lower surface of the bottom portion 13 at a position corresponding to the concave portion 15 and the plate-like bodies B are accommodated and stacked, It is desirable that the surface of each side of the plate-like body B stored in the lower container body 1 is provided so as not to contact the lower surface of the bottom of the upper container body 1.

  The transfer container A2 is formed with a notch 22 in which the upper end of the side wall of the lower container body 1 can be fitted in the portion of the peripheral width of the lower surface 13b of the bottom 13 of the container body 1 when stacked. By providing the upper ends of the side walls 14a, 14b, 14c, and 14d to the notch 22, the inner portion of the lower surface 13b of the bottom 13 of the storage 10 is fitted to the storage 10 of the lower container. In addition, in this fitted state, it is formed on the bottom portion 13 of the storage portion 10 so as to ensure a gap (space) that becomes the storage portion 10 of the plate-like body B. Usually, the gap is stored and held so that a stacking load is not applied to one or several plates B in a state where a protective sheet (not shown) such as a film or paper is overlapped and protected on the front and back surfaces. It is formed so that excessive lifting of the plate-like body B can be regulated.

  The transfer container A2 is located at the same level as or slightly below the bottom surface 13b of the bottom 13 of the storage recess 1 near the four corners and / or on the sides of the cutout 22 so that it can be placed horizontally on a horizontal plane. Leg portions 23 projecting to the top are provided, and concave portions 24 into which the leg portions 23 are fitted in a stacked state are provided on the upper surface side of the side walls 14a, 14b, 14c, 14d.

  In the container A2 for transporting the plate-like body B of this embodiment, one or several plate-like bodies B in a state of being protected by overlapping a protective sheet (not shown) are accommodated and mainly stacked. Wrap it for use in transportation. In this use, similarly to the above-described embodiment, the concave portion 15 provided on the peripheral edge of the bottom upper surface can prevent the peripheral edge of the plate-like body B such as the stored glass substrate from coming into contact with the bottom upper surface. Further, the outer edge side of the bottom surface 15a of the concave portion 15 and the outer edge side of the bottom surface 18a of the extended concave portion 18 can avoid stress concentration during elastic deformation outward of the side walls 14a, 14b, 14c and 14d, respectively. In this case, when a strong force acts on the side walls 14a, 14b, 14c, 14d due to a side drop or the like, the boundary between the bottom surface 15a of the recess and the bottom surface 18a of the extended recess and the inner surface of the side wall. The rounded curved surfaces of the portions 16 and 19 can disperse the force acting on the boundary portions 16 and 19, can allow deformation that warps outward of the side walls, and suppress the occurrence of cracks at the boundary portions 16 and 19. As a result, side wall separation due to cracking can be prevented, and durability can be enhanced.

  10 to 15 show still another embodiment (third embodiment) of the plate-like conveyance container of the present invention. In the configuration of the container main body 1 of this embodiment, the components common to the above-described embodiment are denoted by the same reference numerals and briefly described as necessary, and are mainly different from the above-described embodiment. Will be described.

  In the case of the transport container A3 of this embodiment, the flat rectangular container body 1 is formed from the same synthetic resin foam as described above, and the side walls 14a, 14b, 14c, and 14d on the outer periphery are formed into a frame for stacking. As a unit, a relatively shallow storage unit 10 capable of storing one plate such as a glass substrate or a panel to be transported or several plate-like bodies B stacked via a protective sheet in a flat state is provided in at least one direction in the vertical and horizontal directions. A plurality are formed in parallel at intervals. In the case of the figure, four storage portions 10 are formed in parallel, two in each of the front, rear, left and right.

  Further, in the case of this embodiment, one side portion of each storage portion 10 can store a plate-like body B in which a flexible portion b2 having a flexible printed wiring board is connected to one side portion of the main body portion b1. A flexible storage portion 25 that continuously stores the flexible portion b2 is formed. A partition wall 26 having the same height as the side walls 14a to 14d of the outer peripheral part is provided between the two storage units 10 and 10 and the flexible storage units 25 and 25 arranged in parallel in the left and right. The portions between the storage portions 10 and 10 arranged in parallel in the front and rear are formed continuously with the flexible storage portions 25 and 25 except for the portions that become the receiving portions 27 at both end portions of the plate-like body B on the flexible portion b2 side. However, a partition wall can also be formed between the flexible storage portions 25, 25.

  And in the peripheral part of the upper surface 13a of the bottom part 13 in each storage part 10, that is, the peripheral part along the side walls 14a to 14d and the partition wall 26 and the boundary part between the flexible storage part 26 and the above-described embodiment. Similarly, a recess 15 is formed for avoiding contact of the peripheral edge of the plate-like body B to be stored. Also in this embodiment, the recess 15 does not necessarily have to be continuously formed over the entire circumference as shown in the figure. For example, the recess 15 is formed except for the boundary between the storage portion 10 and the flexible storage portion 25. You can also keep it. The outer edge side continuous with at least the inner surface of the side walls 14a, 14b, 14c, 14d of the bottom surface 15a of the recess 15 can avoid stress concentration during elastic deformation outward of the side walls 14a, 14b, 14c, 14d, respectively. It has a curved surface. Reference numeral 16 denotes a boundary portion of the rounded curved surface, and the outer edge side of other portions such as a portion continuous to the partition wall 26 of the bottom surface 15a of the rounded concave portion 15 also forms the same rounded curved surface.

  Also in this embodiment, the depth D2 of the recess 15 is not less than 1/5 of the storage portion depth D1, and the radius R of the rounded curved surface is not larger than the depth D2 of the recess 15. In the case of a shallow container that accommodates one plate-like body B, it is more preferably 1/2 or more of the depth D1. As a result, the effect of stress dispersion is increased by the rounded curved surface of the boundary portion 16 continuing from the recess bottom surface 15a to the inner surface of the side wall. In the case of containers stacked without a lid, the height of the side wall, that is, the depth of the storage portion, can be set to several times the bottom wall thickness. In this case, the radius of the rounded curved surface can be set to 1/5 or less of the depth of the storage portion as long as stress concentration can be prevented.

  Further, a notch step portion 12 is formed on the outer side of the outer peripheral portion of the container body 1, leaving a convex edge 11 on the inside, and a stepped portion 12 on the outer side of the bottom bottom surface 13 b of the container body 1. A convex portion 21 is formed that fits into the notch step portion 12 at the upper end portion of the side wall of the lower container during stacking. The convex portion 21 has a convex shape by forming a cutout portion 22 into which the convex strip edge 11 is fitted along the inside thereof. Thus, the transport container A3 can be stacked in a state where the convex portion 21 is fitted to the notch step portion 12 and the convex edge 11 is fitted to the notch portion 22. In the state, it is formed on the bottom portion 13 of the storage portion 10 so as to ensure a gap (space) in which the plate-like body B can be stored. Usually, the gap is loaded with a stacking load of one plate B or several plates B in a state where a protective sheet (not shown) such as a film or paper is overlapped and protected on the front and back surfaces. It is set so that it can be stored and held without being restricted, and excessive lifting of the plate-like body B can be regulated.

  In addition, it attaches to the peripheral part of the plate-shaped body B as shown in figure, and protrudes in the required part of the side walls 14a, 14b, 14c, 14d and the partition wall 26 around each said accommodating part 10 as needed. A storage recess 28 that can store the accessory part b3 can be formed. Depending on the form such as the presence or absence of accessory parts of the plate-like body B, the storage recess 28 is unnecessary. Further, the number and arrangement directions of the storage units 10 are not limited to those shown in the drawing, and it is also possible to arrange the storage units 10 and the flexible storage units 25 in the same direction, or only two plate-like bodies. Can also be arranged and formed so that they can be stored in parallel.

  Further, in the case of this embodiment, the left and right side walls 14b, 14d and the partition wall 26 are formed with cutout recesses 20 for storing and taking out the plate-like body B having a recessed groove shape in the vertical direction. Also, vertical cutouts (not shown) are formed at the four corners of each storage unit 10 as necessary. Reference numeral 40 in the figure denotes a handle portion.

  In the case of the transporting container A3, for example, the main body parts b1 of the plurality of plate-like bodies B with flexible parts, which are protected by attaching protective sheets such as films and papers on the front and back surfaces, are used. While accommodating in the accommodating part 10, the flexible part b2 provided in a row by this main-body part b1 is accommodated in each flexible accommodating part 25 formed continuously with each said accommodating part 10 (FIG. 10 chain line). As shown in FIG. 15, the container body 1 containing the plate-like body B in this way is formed with the convex portion 27 formed on the outer peripheral portion on the lower surface side of the upper container body 1 as the upper end of the side wall of the lower container body 1. They are stacked in a state of being fitted to the notch step portion 12 included in the portion. If necessary, an empty container body 1 that does not store a plate-like body is stacked on the top as a lid. The entire container thus stacked is belted (not shown) and transported or the like.

  Also in this embodiment, as in the above-described embodiment, the recessed portion 15 formed in the peripheral edge portion of the bottom upper surface 13a of each storage portion 10 allows the peripheral edge of the stored plate-like body B to contact the upper surface of the bottom portion. Can be prevented. Further, at least the outer edge side of the bottom surface 15a of the recess 15 that is continuous with the side walls 14a, 14b, 14c, 14d can avoid stress concentration during elastic deformation outward of the side walls 14a, 14b, 14c, 14d. Therefore, if a strong force is applied to the side walls 14a, 14b, 14c, 14d due to a side drop or the like, the radius of the boundary portion 16 between the bottom surface 15a of the recess and the bottom surface 18a of the expansion recess and the inner surface of the side wall The force acting on the boundary portion 16 can be dispersed by the curved surface. As a result, the sidewalls 14a, 14b, 14c, and 14d can be allowed to warp outward to some extent, and the occurrence of cracks at the boundary portion 16 can be suppressed. Can be increased.

  The transport container of the present invention transports and stores raw glass, various glass substrates such as liquid crystal display and plasma display glass substrates, panels such as solar cell panels and touch panels and other various plate-like bodies that are vulnerable to impact. Can be suitably used.

  A1, A2, A3 ... transport containers, B ... plate-like body, b1 ... main body, b2 ... flexible part, b3 ... accessory, 1 ... container main body, 3 ... lid, 10 ... storage part, 11 ... convex Edges, 12 ... Notched step, 13 ... Bottom, 13a ... Upper surface of the bottom, 13 ... Lower surface of the bottom, 14a, 14b, 14c, 14d ... Side walls, 15 ... Recess, 15a ... Bottom of the recess, 16 ... Boundary of the curved surface , 17 ... notch, 18 ... extended recess, 18a ... bottom of the extended recess, 19 ... boundary, 20 ... notch, 21 ... convex, 22 ... notch, 23 ... leg, 24 ... recess, 25 ... Flexible storage part, 26 ... partition wall, 27 ... receiving part, 28 ... storage concave part, 29 ... concave part for belt application, 31 ... peripheral edge part, 32 ... fitting wall part, 33 ... concave part, 34 ... convex edge, 39 ... belt Recess for hanging, 40.

Claims (14)

A container for transporting a container having a flat rectangular container body with an opening opened upward, and storing and transporting one or more plate-like bodies in a flat state in the container,
A concave portion for avoiding contact of the peripheral edge of the plate-like body accommodated on the bottom portion is formed in the peripheral edge portion along the inner wall surface of the bottom surface of the bottom portion of the container main body, and is continuous with the inner wall surface of the bottom surface of the concave portion. A plate-shaped container for transporting a plate-like body, wherein the outer edge side has a rounded curved surface capable of avoiding stress concentration during side wall deformation.   The container main body has one storage portion for storing a plurality of plate-like bodies in a flat state, and is fitted and attached to the upper end of the side wall at the outer peripheral portion of the container main body. The plate-shaped conveyance container according to claim 1, comprising a lid that is formed.   The container body has one storage part that stores one or several plate-like bodies in a flat state, and the container body in a state where the plate-like bodies are stored in the storage part can be stacked without a lid. The container for transporting a plate-like body according to claim 1.   The container for transporting a plate-like body according to claim 2, wherein a concave portion at a peripheral edge portion on the upper surface of the bottom portion of the storage portion is continuously formed along the inner surface of the side wall over the entire circumference.   The plate-shaped conveyance container according to claim 3, wherein a concave portion of a peripheral edge portion on the upper surface of the bottom portion of the storage portion is formed continuously over the entire circumference along the inner surface of the side wall.   The inner surface of the side wall at the four corners of the storage portion of the container body is provided with a notch portion extended from the inner side surface of the side wall, and the bottom portion of the notch portion is formed as an extended recess formed continuously extending from the recess. The container for transporting a plate-like body according to any one of claims 2 to 5, wherein the outer edge side of the bottom surface of the extended recess is continuous with the inner surface of the side wall with a rounded curved surface continuous from the recess.   The depth of the recess is 1/5 or more of the storage depth of the container body and 1/2 or less of the bottom wall thickness, and the radius of the rounded curved surface at the boundary between the bottom of the recess and the inner surface of the side wall is The container for transporting a plate-like body according to any one of claims 1 to 5, wherein the container is formed so as to be not less than 1/5 of the depth of the storage portion and not to exceed the depth of the concave portion.   The depth of the recess is 1/5 or more of the storage depth of the container body and 1/2 or less of the bottom wall thickness, and the radius of the rounded curved surface at the boundary between the bottom of the recess and the inner surface of the side wall is The container for transporting a plate-like body according to claim 6, wherein the container is formed so as to be not less than 1/5 of the depth of the storage portion and not to exceed the depth of the recess.   The container for transporting a plate-like body according to any one of claims 1 to 5, wherein an inner surface of a side wall of at least one side surface of the storage portion of the container body is tapered outward from the lower end toward the upper end. .   The plate-like container for transportation according to claim 6, wherein the inner surface of the side wall of at least one side surface of the storage portion of the container body has a tapered shape that is inclined outward from the lower end toward the upper end.   The container body is formed with a plurality of storage portions arranged at intervals in parallel in at least one vertical and horizontal direction, and the container main body in a state in which a plate-like body is stored in each storage portion can be stacked without a lid. A container for transporting a plate-like body according to claim 1.   Fitting means having uneven shapes corresponding to each other are provided on the upper end of the side wall of the outer periphery of the container body and the peripheral edge of the bottom lower surface of the container body so that a plurality of container bodies are fitted together. The container for transporting a plate-like body according to claim 11 provided.   The depth of the recess is 1/5 or more of the storage depth of the container body and 1/2 or less of the bottom wall thickness, and the radius of the rounded curved surface at the boundary between the bottom of the recess and the inner surface of the side wall is The container for transporting a plate-like body according to claim 11 or 12, wherein the container is formed so as to be not less than 1/5 of the depth of the storage portion and not to exceed the depth of the concave portion.   The container for transporting a plate-like body according to claim 11 or 12, wherein a flexible storage portion for storing a flexible portion connected to the plate-like body is formed continuously on one side of each storage portion.

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