JP2008239210A - Transportation box for glass board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transportation box for glass boards which effectively prevents a shift between transportation boxes to give no damage to the glass boards contained in the boxes on transportation when transportation boxes containing glass boards are stacked flatly or vertically in a fixed position to be transported. <P>SOLUTION: The outer top face 2a of a lid 2 faces outside when the lid 2 is fitted to a box body 1, and the outer bottom face 1a of the bottom of the box body 1 faces outside when the box body 1 is fitted to the lid 2. Grooves are formed on one of the outer top face 2a and the outer bottom face 1a, and projecting stripes are formed on the other of the outer top face 2a and the outer bottom face 1a, where the projecting stripes at a position corresponding to the grooves. Among side faces of a transportation box 10, one of a pair of outside counter faces that faces outside is formed with recessed stripe grooves 4 and 4, and the other of the outside faces that faces the outside is formed with projecting stripes 3 and 3. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a glass substrate transport box for receiving and transporting a glass substrate used for manufacturing a flat panel display such as a liquid crystal display panel or a plasma display panel.

  As a method of transporting a glass substrate used for manufacturing a flat panel display (FPD) such as a conventional liquid crystal display panel, plasma display panel, or electroluminescence (EL) panel, transport having a plurality of pairs of vertical grooves therein. It is generally known that a plurality of glass substrates are sequentially stowed and stored and transported between opposing longitudinal grooves using a box.

  In this transport box, the separation of the glass substrates adjacent to each other at the time of transport is ensured by taking into account at least the bending of both of them, so that an increase in the size of the transport box is inevitable. This problem has become more prominent due to the increase in the size of the glass substrate to be accommodated with the recent increase in the screen size of FPDs and the acquisition of a large number of panels for improving production efficiency. There is an urgent need to improve the storage method.

  In response to the above problem, Patent Document 1 discloses a technique aimed at reducing the outer dimensions of the package during transportation. Specifically, they are stacked and stored in a transport box with a water-soluble film interposed between adjacent glass substrates, and according to this method, a large separation is ensured between the glass substrates. This eliminates the need for a smaller transport box. Moreover, the water-soluble film can be treated easily on the FPD production line.

  Further, Patent Document 2 discloses a substrate storage box in which a spacer made of a resin foam is interposed between glass substrates instead of the water-soluble film described above, and is similarly stacked and stored therein.

JP 2005-153951 A JP 2004-106882 A

  According to the glass substrate storage box or the glass substrate transport method disclosed in Patent Documents 1 and 2, the box can be reduced in size, and the transport efficiency can be increased accordingly. By the way, in actual vehicle transportation, air transportation, and the like, a large number of transportation boxes are overlapped and transported in a tightly attached posture with a band or the like. At this time, the stacking form of the boxes is not only so-called flat stacking in which the upper and lower surfaces of adjacent boxes are stacked, but also so-called vertical stacking in which the side surfaces of adjacent boxes are stacked is a viewpoint of stacking efficiency. In addition, the present situation is that there is a combined form of flat stacking and vertical stacking.

  For example, when stacking transport boxes, it is clear that the boxes can be easily displaced by some impact that may occur during transport if the boxes are simply overlapped and fixed with a band. In the case of vertical stacking, as well as the problem of box displacement, the standing posture when the band is fixed is likely to be unstable compared to flat stacking. Therefore, even if it is possible to reduce the size of the integrated box by using the transfer boxes disclosed in Patent Documents 1 and 2, prevention of misalignment when stacking and transferring a large number of transfer boxes integrally, etc. If the box is not secured, it is inevitable that the glass substrate accommodated will be damaged when the boxes are displaced, when the boxes collide with each other, and when the boxes are displaced and dropped.

  The transport box for glass substrates of the present invention has been made in view of the above-mentioned problems, and even when the boxes are fixed in either the flat stacking or the vertical stacking, the shift between the boxes is effectively prevented. An object of the present invention is to provide a glass substrate transport box that can be used and that does not damage the glass substrate housed therein during transport.

  In order to achieve the above object, a transport box for a glass substrate according to the present invention has a top body having an open end surface, a box body having an outer shape of a quadrangular prism shape, and a housing space for housing the glass substrate therein, and the open end surface. And a lid body fitted to the box body at any one of the edges defining the top and bottom surfaces of the box body with the height of the side face in the posture in which the lid body and the box body are fitted together In a transport box for storing and transporting a plurality of glass substrates in a posture in which the plurality of glass substrates are overlapped in the height direction, the cover body is fitted with the box body of the lid. A first concave groove on one of the outer top surface that faces the outside and the bottom surface of the box body that faces the outside when fitted with the lid. Formed A first protrusion is formed at a position corresponding to the first concave groove on the other side, and a second concave is formed on one of the pair of opposing side surfaces of the side surfaces of the transport box. A groove is formed, and a second protrusion is formed at a position corresponding to the second concave groove on the other side.

  The transport box of the present invention has a rectangular shape with an outer shape of a square shape, for example, a square shape or a rectangular shape when viewed from above the lid body, in a posture in which the box body and the lid body are fitted. Further, the height of the side surface of the transport box is shorter than either one of the side edges of the lid body or the lower surface of the box body, and as a whole has a flat rectangular parallelepiped shape. Therefore, a configuration in which a plurality of transport boxes are stacked while abutting between the upper surface of the lid and the bottom surface of the box body is flat, and a configuration in which the side surfaces are contacted and stacked is vertical.

  Both the lid and the box main body constituting the transport box are preferably made of a synthetic resin foam, and more preferably, foamed particles of thermoplastic resin such as expandable styrene-modified polyolefin resin particles are used as a mold. Molded by internal molding. The styrene modified polyolefin resin is obtained by impregnating and polymerizing polyolefin resin particles with a styrene monomer, and among the styrene modified polyolefin resins, a styrene modified polyethylene resin is particularly preferable. In the component, the proportion of the styrene component is 40 to 90% by weight, preferably 50 to 85% by weight, and more preferably 55 to 75% by weight. Moreover, it is preferable that the magnification of the foam is adjusted to 3 to 60 times.

  Molded products made of expandable styrene-modified polyolefin resin particles have higher strength, smaller shrinkage, and better dimensional accuracy than foamed polypropylene resin molded products with the same expansion ratio. There is little variation. Furthermore, there is a merit that crushed pieces due to wear or the like are less likely to be produced as compared with a foamed polystyrene resin molded product.

  A concave groove (first concave groove) is formed on one of the outer top surface of the lid body and the outer bottom surface of the box body, and a first groove is formed at a position corresponding to the first concave groove on the other side. A protrusion is formed, and positioning is performed during flat stacking by fitting both of them together. Here, the corresponding position refers to the outer bottom surface of the other box body that abuts (fits), for example, the first concave groove on one lid outer top surface when a plurality of transport boxes are stacked. Means position. Accordingly, the groove and the protrusion have shapes and dimensions that are compatible with each other. When one of the grooves is a groove, a protrusion having the same shape and the same dimension as the groove is formed on the other. Moreover, the combination of the corresponding ditch | groove and protrusion has 1 or more arbitrary unit numbers.

  The transport box of the present invention prevents the displacement of the boxes during flat stacking by fitting the first concave groove and the ridge described above, and the outer periphery of a set of opposing side faces among the four side faces. In the surface, it has a concave groove (second concave groove) and a ridge (second ridge). The concave grooves and ridges are formed at side positions corresponding to each other when a plurality of boxes are stacked vertically with their side surfaces in contact with each other. Positioning between boxes during stacking and prevention of displacement are guaranteed. In addition, it can also respond | correspond to the vertical stack | stacking which uses all the side surfaces of a box by forming a ditch | groove and a protrusion on the two sets of side surfaces which each of four side surfaces oppose. In addition, a predetermined number of transport boxes are stacked and / or vertically stacked, and these are fastened with a band made of rubber or cloth and loaded onto the transport means, and transported from the glass substrate manufacturer to the display manufacturer, etc. The It is preferable that the band groove for binding the band is also formed on the outer peripheral surface of the transport box.

  Moreover, the glass substrate used for FPD manufacture is stacked | piled up and accommodated in the height direction (thickness direction of a box) of the side surface of this box in the accommodation space in a conveyance box. More specifically, a plurality of glass substrates are stacked and accommodated in a posture in which a protective sheet material is interposed between adjacent glass substrates. Here, the protective sheet material used is preferably a foam sheet, but may be paper such as slip paper, a resin film, a resin sheet, or the like. Among these, a foam sheet subjected to an antistatic treatment is more preferable, and examples thereof include a foam sheet obtained by kneading an antistatic agent into a crosslinked polyolefin resin foam sheet. Moreover, what formed the polypropylene resin layer containing the polymer type antistatic agent by the coextrusion molding method etc. on the single side | surface or both surfaces of a polypropylene resin foam layer is also mentioned.

  By stacking the glass substrates in a posture with these protective sheet materials and accommodating them in the transport box, the glass substrate surface can be reliably protected and a large number of glass substrates can be accommodated efficiently in the accommodating space. can do.

  Furthermore, according to the transport box of the present invention, even when a plurality of transport boxes are transported in either a stacked state or a vertically stacked state, the transport boxes are accurately positioned and their deviation is effective. Therefore, it is possible to reliably avoid problems such as the glass substrate housed with the transport box being displaced and being damaged at the time of transport.

  In a preferred embodiment of the glass substrate transport box according to the present invention, the second groove is a groove extending in the height direction of the side surface, and the second protrusion is the height of the side surface. It is a ridge extending in the direction.

  In order to realize stable vertical stacking between the transport boxes, the second concave grooves and ridges formed on the side surfaces thereof are respectively formed into concave groove grooves and ridges extending in the height direction of the side surfaces. Ease of molding can be guaranteed. For example, when forming a box body and its concave groove using a mold composed of a movable mold and a fixed mold, the mold opening of the movable mold is guaranteed by setting the concave groove as a concave groove.

  Moreover, in preferable embodiment of the conveyance box for glass substrates by this invention, each of four inner surfaces which face accommodation space among the side surfaces of the said box main body, respectively, are several protrusions or several extension extended in the height direction of this side surface. A concave groove is formed.

  When the glass substrate to be accommodated and the inner surface of the side surface of the box body are in surface contact with the entire side surface of the glass substrate, the glass substrate is deflected by the force from the box body, charged by contact, and further rubbed with the glass substrate. As a result, the box body is worn and shavings are easily generated. In general, the planar size of the glass substrate is set smaller than that of the accommodation space of the box body, and the glass substrate is accommodated in the accommodation space so as not to contact the inner surface of the side surface of the box body. However, when transported in the above-described vertical stacking posture, the side surface inner surface and the glass substrate that are located below are brought into surface contact with each other in a linear manner, resulting in the above-described problem. Therefore, on the inner surface of the side of the box body, a plurality of protrusions extending in the height direction are formed at intervals or a plurality of concave grooves are formed at intervals, so that the transport boxes are stacked vertically. When the laminated glass substrate comes into contact with the side surface of the lower box body, the contact area between the glass substrate and the inner surface of the side surface can be reduced as much as possible, and the above-mentioned problems are effectively solved. be able to.

  Moreover, in preferable embodiment of the conveyance box for glass substrates by this invention, the continuous endless concave groove is formed in four edge sides of the inner surface which faces accommodation space among the bottom faces of the said box main body. It is characterized by.

  From the viewpoint of installation efficiency in the box body, the protective sheet material interposed between adjacent glass substrates has a smaller plane dimension than the plane dimension of the accommodation space. It is common. Here, when the planar size of the glass substrate to be accommodated is formed larger than this protective sheet, the end of the glass substrate protruding from the protective sheet and the bottom inner surface of the box body are in linear contact with each other. Again, this causes the above-described charging and rubbing, generation of cloudiness in the substrate that is considered to be caused by this rubbing, and the like.

  Therefore, in the present embodiment, the end of the glass substrate protruding from the protective sheet material is formed by forming continuous endless concave grooves on the four end sides of the inner surface facing the accommodation space in the bottom surface of the box body. The portion can be prevented from coming into contact with the inner surface of the bottom surface, and the occurrence of the above-described problems can be suppressed.

  In another embodiment of the glass substrate transport box according to the present invention, a third concave groove is formed in one of the box body and the lid, and the third in the other. A third projection is formed at a position corresponding to the third concave groove, and the fitting direction of the box body and the lid set in advance is set by fitting the third concave groove and the third projection. Is guaranteed.

  Usually, the directionality is prescribed | regulated in the glass substrate accommodated in a conveyance box. For example, the directionality is defined in advance in the transport box, and the glass substrate to be accommodated is also associated with the direction of the transport box in the vertical and horizontal directions defined in advance, and the glass substrate is placed in the transport box according to this association. Is housed in. Also, the direction of the lid for the box body is regulated, and after transportation, the manipulator for removing the lid is properly oriented according to the direction of the top, bottom, left and right when the top surface of the lid is viewed in plan. Will be sent. As one measure to ensure the directionality when both the box body and the lid are fitted, at any place where both are fitted, a concave groove is engaged on one side and the concave groove is engaged on the other side. By forming the protrusions, the lid cannot be fitted even if it is intended to be fitted to the box body in the wrong orientation.

  Furthermore, an embodiment may be provided in which the side face of the transport box is provided with a mark for guaranteeing the fitting direction on the side face corresponding to both the box main body and the lid body forming at least one side face. The glass substrate is accommodated in the box body while checking the alignment mark, and after storage, the lid body is fitted to the box body while checking the alignment mark in the same manner. The directionality when the lid is fitted can be visually confirmed.

  As can be understood from the above description, according to the transport box for glass substrates of the present invention, any one of a stacking form in which a plurality of transport boxes are stacked in a stack or in a stack, and a stacking form in which a combination of stack and stack in a stack is combined. In this case, the transport boxes can be positioned efficiently, and the shift of the transport box during transport can be effectively prevented. Moreover, since the glass substrate accommodation efficiency of a conveyance box is also high, both conveyance efficiency and the safety | security at the time of conveyance can be improved.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a lid, a box body, and a glass substrate before the glass substrate is accommodated in the transport box, and FIGS. 2 and 3 illustrate the transport box in which the glass substrate is accommodated in opposite corners. It is the perspective view seen from the angle direction.

  The transport box 10 is composed of a box body 1 having an accommodating portion and having an opening at the upper end thereof, and a lid body 2 fitted to the box body 1, and as shown in FIG. In the fitted posture, the height of the side surface of the transport box 10 is formed to be shorter than either one end of the lid body 2 or the box body 1, and is flat as a whole and rectangular in plan view. There is no. Here, both the box main body 1 and the lid body 2 are formed by in-mold molding foamable particles of a styrene-modified polyethylene resin, and the magnification of the foam is adjusted to 3 to 60 times. .

  Returning to FIG. 1, the box body 1 includes an inner bottom surface 1 a ′ facing the housing portion, an outer bottom surface 1 a facing the outside, outer side surfaces 1 b and 1 c of side surfaces rising from the bottom surface, and an inner surface 1 b ′ facing the housing portion, 1c ′, and further, generally includes a fitting protrusion 1d fitted to the lid 2.

  4 and 5 are perspective views of the side surface of the box body 1 and the inner surface facing the housing portion viewed from different angles, and FIG. 6 is a perspective view of the box body 1 viewed from the outer bottom surface 1a side. On the inner side surfaces 1b 'and 1c' of the side surface of the box body 1, concave grooves 74, 74, 75 and 75 extending in the height direction are formed at intervals, and the inner side surfaces 1b 'and 1c' In the center, robot hand grooves 78,... For receiving a robot hand for taking out the accommodated laminated glass substrate from the box body 1 are formed.

  The grooved grooves 74, 74, 75, 75 are such that the laminated glass substrate to be accommodated is locked by the grooved grooves 74, 74, 75, 75 when the transport boxes 10,. Thus, the glass substrate is prevented from coming into surface contact with the inner surface of the box main body 1 over the entire length of the edge, and the glass substrate is forced from the box main body 1 by partially locking the glass substrate. Therefore, the problem that the inner surface of the box body 1 is worn due to bending due to contact, charging due to contact, or rubbing against the glass substrate, and swarf is easily generated can be solved.

  Further, the inner bottom surface 1a ′ of the box body 1 is formed in such a manner that a plurality of concave grooves 76a,... Extending in the short side direction and concave grooves 76b, 76b extending in a direction orthogonal to these are continuous. Yes. Projections 77,... Are formed by the concave grooves 76a, 76b. When the box bodies 1,... Are stacked by the projections 77,. Can be prevented.

  Furthermore, continuous endless concave grooves 79 are formed on the four end sides of the inner bottom surface 1a ′, and the end edges of the glass substrate come into contact with the inner bottom surface 1a ′ by the concave groove 79. Is prevented.

  Further, as shown in FIG. 5, a projection 71 for defining the fitting direction is formed on one of the four sides defining the fitting protrusion 1 d of the box body 1, The engagement direction of the box body 1 and the lid body 2 is guaranteed by engaging with the concave groove 73 for defining the fitting direction in the lid body 2 shown in FIGS.

  Returning to FIG. 1, of the four outer surfaces 1 b,..., 1 c,... Of the box body 1, two orthogonal outer surfaces 1 b, 1 c are provided with alignment marks for visually guaranteeing the fitting direction described above. 81,..., 82,... Are engraved, and among the four outer surfaces 2b,..., 2c,. 84,... Are engraved, and the fitting direction of both can be guaranteed by fitting the box body 1 and the lid 2 while visually checking these marks. In FIG. 1, the box body 1 is engraved with a rectangular groove 85 to which a not-shown type plate on which the type of the glass substrate to be accommodated is written is attached.

  Further, as shown in FIG. 6, two concave grooves 53 and 54 extending in the long side direction are formed on the outer bottom surface 1 a of the box body 1.

  7 and 8 are perspective views of the outer peripheral surface of the lid body as viewed from two directions, and FIG. 9 is a perspective view of the interior facing the housing portion of the lid body 2. Here, the inner top surface 2a ′ of the lid body 2 is formed flat, and when the fitting protrusion 2d of the lid body 2 and the fitting protrusion 1d of the box body 1 are fitted together, the inner surface 2b. “2c” is in close contact with the outer peripheral surface of the fitting protrusion 1d of the box body 1. In addition, two ridges 51 and 52 extending in the long side direction are formed on the outer top surface 2a of the lid body 2. The ridges 51 and 52 are stacked in the transport boxes 10 and 10 flatly. Are engaged with the two groove grooves 53, 54 formed on the outer bottom surface 1a of the other transport box 10, respectively. The protrusions 51, 52 and the groove grooves 53, By the engagement of 54, positioning and prevention of displacement in the flat stacking posture of the transport boxes 10, 10 are guaranteed.

  On the other hand, both the positioning and the guarantee of displacement prevention when the transport boxes 10 and 10 are stacked vertically can be described with reference to FIGS.

  As shown in FIG. 2, protrusions 3, 3 extending in the height direction of the side surface are formed in the vicinity of both ends of the long side surface of the transport box 10. The ridge 3 is formed by a continuation of a ridge 31 formed on the box body 1 side and a ridge 32 formed on the lid body 2 side in a posture in which the box body 1 and the lid body 2 are fitted together. Is done.

  On the other hand, as shown in FIG. 3, two concave grooves 4, 4 are formed on the side surface opposite to the side surface shown in FIG. The concave groove 4 also has a concave groove 41 formed on the box body 1 side and a concave groove 42 formed on the lid body 2 side in a posture in which the box body 1 and the lid body 2 are fitted together. It is formed by.

  When the transport boxes 10, 10 are stacked vertically with the side surfaces in contact with each other by the protrusions 3, 3 and the groove grooves 4, 4, the other protrusion 3 is inserted into one groove groove 4, 4. , 3 engage with each other to ensure positioning and detent in the vertically stacked posture of the transport boxes 10, 10. In addition, it is preferable to shape the surface of the ridge 3 in advance in a curved shape as shown in the drawing in order to eliminate the problem that the corners of the ridge 3 are scraped by repeated use.

  For example, as shown in FIGS. 6, 7, and 8, the box body 1 and the lid body 2 extend in a direction perpendicular to the protrusions 51 and 52 and the groove grooves 53 and 54, and travel around the outer periphery of the transport box 10. Two band grooves 61, 62 are formed so that a predetermined number of transport boxes 10,... Are stacked, vertically stacked, or stacked and vertically stacked in a unit posture. Can be prevented by fitting the bands into the band grooves 61 and 62 when the two bands are fastened together.

  Referring back to FIG. 1, the method for accommodating the plurality of glass substrates g,... In the box body 1 is to first place the protective sheet material s on the inner bottom surface 1 a ′, then place the glass substrate g, and then protect the sheet material. s and then the glass substrate g are repeated. Finally, the cover sheet 2 is put on the box body 1 by covering the protective sheet material s, whereby a predetermined number of glass substrates g are accommodated. .

  FIG. 10 is a plan view showing a state in which the glass substrate g is accommodated inside the box body 1. An antistatic protective sheet material s (for example, an antistatic Lightlon (registered trademark), etc.) interposed between adjacent glass substrates accommodates the planar dimensions from the viewpoint of installation efficiency in the box body 1. It is made smaller than the plane dimension of the space. For example, it is made 10-15 mm smaller than the inner surface of each side surface of the box body 1. On the other hand, the plane dimension of the glass substrate g to be accommodated is made larger than the protective sheet material s, and is about 0 to 2 mm smaller than the inner surface of each side surface of the box body 1. Therefore, the four end sides of the lowermost glass substrate g protrude from the protective sheet material s therebelow, and come into linear contact with the inner bottom surface 1a '. Therefore, by forming endless groove grooves 79 continuous at the four corners of the inner bottom surface 1a ′, a linear shape between the end portion of the glass substrate g protruding from the protective sheet s and the inner bottom surface 1a ′ of the box body 1 is obtained. Surface contact can be prevented, and charging and rubbing, and generation of cloudiness in the glass substrate due to this rubbing can be suppressed.

  When the transport box 10 is stacked vertically with the side surface in the long side direction in contact with the side surface of the other transport box 10, the glass substrate g is positioned downward as shown by a two-dot chain line in FIG. (The X direction), and the end side comes into contact with the inner surface of the side surface. Here, concave grooves 74 and 74 and a robot hand groove 78 extending in the height direction of the side surface are formed on the inner surface of the side surface of the transport box 10 so that the edge of the glass substrate g is the side surface of the transport box 10. The range of direct contact with the inner surface can be made into four L sections shown in the figure, and the glass substrate g can be prevented from being in surface contact with the inner surface of the box body 1 over the entire length of the edge.

  Moreover, the groove | channel 72 formed in the fitting protrusion 1d shown in FIG. 4 accommodates the some glass substrate g, ..., When fitting the cover body 2, first, the groove | channel 73 of the cover body 2 is made into the box main body. This is a groove for finally pushing the air in the housing part out of the groove 72 when the lid 2 is gradually dropped with the engaging part as a fulcrum. The fitting of both is facilitated by the action.

  Moreover, in the fitting protrusion 1d shown in FIGS. 4 and 5, the end surfaces of the two corner portions 1d1 and 1d1 out of the four corner portions are curved, and the other two corner portions 1d2 are formed. , 1d2 have chamfered end faces. On the other hand, also in the lid body 2 shown in FIG. 9, the end surfaces of the two corner portions 2d1 and 2d1 out of the four corner portions are curved, and the other two corner portions 2d2 and 2d2 are formed. The end face is chamfered and the mating direction of both is guaranteed here.

  Next, FIG. 11 shows a state in which two transport boxes 10 and 10 accommodating a plurality of glass substrates g,... In this stacked form, the ridges 51 and 52 of the outer top surface 2a of the lid 2 of one transport box 10 are respectively formed into two concave grooves 53 and 54 formed on the outer bottom surface 1a of the other transport box 10. By being engaged and fastened by the bands 9 and 9, both positioning and displacement prevention are guaranteed.

  FIG. 12 shows a state in which the two transport boxes 10 and 10 are stacked vertically. In this stacked form, the protrusions 3, 3 on the long side surface of one transport box 10 engage with the concave grooves 4, 4 on the long side surface of the other transport box 10, and are fastened by bands 9, 9. This guarantees positioning and detent in both vertical stacking positions.

  Further, FIG. 13 shows a state in which the four transport boxes are stacked and stacked vertically. In this stacked form, the ridges 51 and 52 of the outer top surface 2a of the lid 2 of one transport box 10 are respectively formed into two concave grooves 53 and 54 formed on the outer bottom surface 1a of the other transport box 10. A pair of flat stacked units are formed by engagement, and the two long stacked units have a protrusion 3 on the long side surface of one flat stacked unit, and a concave line on the long side surface of the other flat stacked unit. .. Are engaged with the grooves 4, and are fastened by the bands 9, 9, so that the positioning and the prevention of displacement of the four transport boxes 10,.

  Of course, the radix of the transport boxes to be stacked flat, vertically, etc. is not limited to the illustrated embodiment, and the specific shape of the transport box is also limited to the illustrated embodiment. It is not a thing. Furthermore, an embodiment in which a groove groove and a protrusion are formed on each of two opposing side surfaces of the four side surface outer peripheral surfaces of the transport box 10 may be used.

  According to the transport box 10 described above, as shown in FIGS. 11 to 13, in all the stacking forms in which flat stacking, vertical stacking, and both are combined, it is possible to reliably avoid a shift during transport of each transport box. Therefore, the glass substrate accommodated can be safely conveyed to the conveyance target site.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and there are design changes and the like without departing from the gist of the present invention. They are also included in the present invention.

It is the perspective view which showed the cover body, box main body, and glass substrate before accommodating a glass substrate in a conveyance box. It is the perspective view which looked at the conveyance box in which the glass substrate was accommodated from the corner direction. It is the perspective view which looked at the conveyance box in which the glass substrate was accommodated from the arrow direction of III in FIG. 2 which is a corner direction on the opposite side to FIG. It is the perspective view which looked at the box main body from the corner direction. It is the perspective view which looked at the box main body from the arrow direction of V in FIG. 4 which is a corner angle direction on the opposite side to FIG. It is the perspective view which looked at the box main body from the arrow direction of VI of FIG. 4 which is the outer peripheral surface. It is the perspective view which looked at the outer peripheral surface of the cover body from the one corner direction. It is the perspective view which looked at the outer peripheral surface of the cover body from the arrow VIII direction in FIG. 7 which is a corner direction opposite to FIG. It is the perspective view which looked at the cover body from the arrow direction of IX of FIG. It is the top view which showed the state in which the glass substrate was accommodated in the inside of a box main body, and is the figure explaining the contact condition of the glass substrate in the case of vertical stacking, and the side surface inner surface of a box main body. It is the perspective view which showed the state which piled up the two conveyance boxes. It is the perspective view which showed the state which stacked two conveyance boxes vertically. It is the perspective view which showed the state which stacked and vertically stacked four conveyance boxes.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Box main body, 1a ... Outer bottom surface, 1a '... Inner bottom surface, 1b, 1c ... Outer side surface, 1b', 1c '... Inner side surface, 1d ... Mating protrusion, 2 ... Cover body, 2a ... Outside of cover body Top surface, 2a '... inner top surface of the lid, 2b, 2c ... outer side surface of the lid, 2b', 2c '... inner side surface of the lid, 2d ... fitting ridge, 3,31,32 ... ridge 4, 41, 42 ... concave groove, 51, 52 ... protrusion, 53, 54 ... concave groove, 61, 62 ... band groove, 42 ... bottom surface, 71 ... projection for defining the fitting direction, 73 ... fitting Grooves for defining the mating direction, 74, 75 ... Vertical grooves on the inner side surface, 76a, 76b ... Recessed groove on the inner bottom surface, 77 ... Rids on the inner bottom surface, 78 ... Robot hand groove, 79 ... Endless groove , 81, 82, 83, 84 ... imprint, 9 ... band, 10 ... transport box, g ... glass substrate, s ... protective sheet material

Claims (6)

The top end surface is an open end surface, and the outer shape is a quadrangular prism shape. The box body includes an accommodation space for accommodating a glass substrate therein, and a lid body that is fitted to the box body at the open end surface. The height of the side surface in the posture in which the body and the box body are fitted is formed shorter than any one of the edges defining the top and bottom surfaces of the box body, and a plurality of glass substrates are In the transport box for storing and transporting in the storage space with the posture superimposed in the vertical direction,
Among the lids, the outer top surface that faces the outside when fitted with the box body, and the outer bottom surface that faces the outside when fitted with the lid body among the bottom surfaces of the box body The first groove is formed in one of the two, and the first protrusion is formed at a position corresponding to the first groove in the other.
Of the side surfaces of the transport box, one of a pair of opposing side surfaces is formed with a second concave groove, and the second protrusion is formed at a position corresponding to the second concave groove on the other side. A conveyance box for glass substrates, characterized in that   The second groove is a groove extending in the height direction of the side surface, and the second protrusion is a protrusion extending in the height direction of the side surface. Transport box for glass substrates.   4. A plurality of protrusions or a plurality of concave grooves extending in the height direction of each side surface are formed on each of four inner surfaces facing the accommodation space among the side surfaces of the box body. The conveyance box for glass substrates of 2.   4. The glass substrate according to claim 1, wherein continuous endless concave grooves are formed on four end sides of the inner surface facing the accommodation space in the bottom surface of the box body. Transport box.   In the place where the box body and the lid are fitted, a third groove is formed in one of them, and a third protrusion is formed in a position corresponding to the third groove in the other. The fitting direction of the box main body and the lid is guaranteed by the fitting of the third concave groove and the third protrusion, and the fitting direction of the lid is guaranteed. The conveyance box for glass substrates of description.   The fitting direction of the box body and the lid is set in advance, and the fitting direction is guaranteed on the corresponding side surfaces of both the box body and the lid that form at least one of the side surfaces of the transport box. 6. A transport box for a glass substrate according to any one of claims 1 to 5, wherein a seal is provided.

Images