JP4188638B2 - Glass plate container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a transport container used when transporting a glass plate in which precision members are incorporated, such as a constituent substrate of a flat panel display.
[0002]
[Prior art]
In flat panel displays such as plasma displays and liquid crystal displays, a thin glass plate incorporated with electronic functional elements such as semiconductor elements and precision members such as various thin films is used as a constituent substrate. When transporting such a glass plate, a transport container made of a plastic plate, a resin foam or the like has been used so as not to damage the glass plate or the precision member incorporated.
[0003]
As one of the above-mentioned transport containers, a side pad in which a plurality of groove portions for gripping the glass plate end portion are formed on a main body made of a foamed resin molded body, and a side plate is inserted into the groove portion so as to be detachably accommodated. Is disclosed in which the forklift can be handled by forming a space below the bottom surface by arranging a plurality of bases on the side surface of the main body by moving the front and back in the groove portion to correspond to the size of the glass plate. (Japanese Patent Laid-Open No. 2001-31165). If the transport box is used, it can be transported without damaging the glass plate or the like.
[0004]
However, since the main body is integrally formed, the transport box requires a large storage space even if it does not contain a glass plate, so it is expensive to store and must be returned for use as a returnable box. The cost to take was high. Further, when the main body portion is partially damaged, the entire main body portion must be replaced. Therefore, there is a problem that there is a lot of waste and the replacement cost is high.
[0005]
As another container for transportation, a fixed side plate standing on at least three sides of the surface of the pallet, and an upper end of each fixed side plate are detachable and rotate toward the inside of the container. There is disclosed a container having a first rotation side plate that is movably mounted and a second rotation side plate that is mounted on the upper end of the first rotation side plate so as to be rotatable toward the outside of the container. (JP-A-10-194277). Since the container can be lowered in height by folding the first rotating side plate and the second rotating side plate, the storage space can be reduced correspondingly, and the container can be transported in a slightly compact state when returned. However, since it cannot be completely decomposed, its compactness is insufficient. Further, when the main body portion is partially damaged, the entire main body portion must be replaced, which has a problem of wastefulness and high replacement cost.
[0006]
[Problems to be solved by the invention]
The present invention has been made to solve the above-mentioned problems of the prior art, the storage space when the glass plate is not accommodated is reduced, and only the damaged part even if the main body part is partially damaged. It is an object of the present invention to provide a glass plate transport container for transporting a glass plate in which an electronic functional element such as a semiconductor element is incorporated.
[0007]
[Means for Solving the Problems]
As a result of earnest research to solve the above-mentioned problems, the present inventor can solve the above-mentioned problems by forming the main body parts by dividing them into specific shapes, assembling them when in use, and disassembling them when not in use. As a result, the present invention has been completed. That is, according to this invention, the following container for glass plate conveyance is provided.
(1) A glass plate transport container having a main body with an open top surface and a pallet disposed below the bottom of the main body, and a space for accommodating a plurality of glass plates is formed inside the main body. In
The main body has feet at the same height as the pallet at the lower four corners of the bottom and supports the main body,
A pallet with four corners cut out is stored in a space formed on the lower side of the bottom by the foot,
The main body is formed to be disassembled into two or more members,
Two members of the two or more members are a pair of divided bodies composed of a first divided body and a second divided body having a bottom portion provided with the foot portion and a side wall portion having a U-shaped horizontal section. Yes,
A container for transporting a glass plate, wherein a plurality of grooves for supporting the glass plate are formed on a pair of surfaces on which the first divided body and the second divided body face each other.
(2) In the above (1), the main body includes a pair of connected bodies including a first connected body and a second connected body for connecting the side walls of the first divided body and the second divided body. The container for glass plate conveyance of description.
(3) The (1) or (2), wherein the main body includes a box body including a first divided body and a second divided body, and a side wall body connected to an upper edge of the side wall of the box body. ) Container for glass plate conveyance according to the above.
(4) The container for transporting a glass plate according to any one of (1) to (3) , wherein the main body is made of a polyolefin-based resin expanded particle molded body.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings.
FIG. 1 is a partially broken perspective view showing an example of a glass plate transport container. In FIG. 1, 1 is a main body, 2 is a first divided body, 3 is a second divided body, 4a and 4b are side walls of the divided body, 4 is a generic name for the side walls, 5 is a bottom, 6a , 6b are a plurality of grooves for supporting the glass plate, 6 is a generic name for the plurality of grooves for supporting the glass plate, 7 is a groove provided in the bottom 5, 8 is a pallet, and 12 is a foot. .
[0009]
As shown in FIG. 1, the glass plate transport container of the present invention (hereinafter referred to as “the container”) is formed by a main body 1 having an open top surface and a foot 12 below a bottom portion 5 of the main body 1. and a pallet 8 that is housed in the space portion, a space for accommodating a plurality of glass plates are formed inside of the body 1. Since this container is configured in this way, a glass plate in which an electronic functional element such as a semiconductor element is incorporated can be accommodated and transported inside the main body 1. Further, since the pallet 8 is provided with a lift hole 10 into which a forklift claw portion can be inserted, the pallet 8 can be easily carried by the forklift. Further, since the four corners of the pallet 8 are cut out, the pallet 8 can be stored in a space formed by the lower foot 12 of the bottom 5.
[0010]
In this container, the main body 1 is formed so as to be disassembled into two or more members, and two of the two or more members have a bottom portion 5 and a side wall portion 4 having a U-shaped horizontal section. It is a pair of divided bodies composed of a first divided body 2 and a second divided body 3. Since the main body 1 of the container is formed so as to be disassembled into two or more members, that is, the first divided body 2 and the second divided body 3 in this way, the container body 1 is disassembled when it does not contain a glass plate. Can be stored and the volume can be reduced. Therefore, the storage cost and the transportation cost are lower than those of the conventional container. Moreover, even if any member is damaged, only that member can be replaced, so that the replacement cost can be reduced.
In the present specification, the first divided body 2 and the second divided body 3 are collectively referred to as a divided body at the end.
[0011]
Moreover, in this container, as shown in FIG. 2, the 1st division body 2 and the 2nd division body 3 can be assembled | separated only by required distance corresponding to the dimension of the glass plate P. As shown in FIG. Therefore, even a glass plate having a dimension longer than the length before division can be easily packed.
[0012]
Both the said 1st division body 2 and the 2nd division body 3 have the side wall part 4 and the bottom part 5, and the horizontal cross section of this side wall part 4 is U shape. Further, when the first divided body 2 and the second divided body 3 are combined as shown in FIGS. 1 and 2, a plurality of grooves 6a for supporting the glass plate are provided on each of a pair of surfaces facing each other, 6b is formed. Accordingly, by inserting the opposing edge portions of the glass plate P into the opposing grooves 6a and 6b and holding the glass plate P, the main body 1 is not damaged in a state where the plurality of glass plates P are erected. Can be accommodated.
The first divided body and the second divided body can be connected or divided according to the dimensions of the glass plate P, but the above-mentioned "a pair of surfaces where the first divided body and the second divided body face each other" Is a pair of surfaces (the inner surface of the side wall portion 4a shown in FIG. 1) formed by the inner surface of the side wall portion of the first divided body and the inner surface of the side wall portion of the second divided body in this connection direction (also coincides with the dividing direction). It means the inner surface of the side wall 4b.
[0013]
In addition, when forming the said groove | channel 6, the groove | channel 7 is formed not only in a pair of mutually opposing inner surface of the side wall part 4 of the 1st division body 2 and the 2nd division body 3, but also in the inner wall surface of the bottom part 5. FIG. It is preferable. When the groove 7 is formed in this way, the retainability of the glass plate P becomes more excellent.
[0014]
The groove 6 is formed so as to have a depth and a width where the edge portion of the glass plate P can be inserted, and is set so that there is a slight margin in a state where the glass plate P is inserted. Although the number of grooves can be set arbitrarily, it is preferable to set the number of grooves to 15 to 50 in consideration of the fact that the substrate can be easily carried in the inserted state. The grooves 7 are preferably formed so that the bottom side of the glass plate P is well positioned in accordance with the number of the grooves 6.
[0015]
The groove 6 is preferably formed integrally with the divided body, but an insertion member in which the groove 6 is formed may be attached and arranged. The portion of the groove 6 is more likely to be broken than the others, so it is advantageous if it can be replaced.
[0016]
The main body 1 includes a first divided body 2, a second divided body 3, a pair of first connecting bodies 9 a that connect the side wall portions 4 a and the side wall portions 4 b of the first divided body 2 and the second divided body 3, and The second connector 9b is preferably included. That is, as shown in FIG. 3, when assembling the first divided body 2 and the second divided body 3 apart from each other by a necessary distance corresponding to the dimensions of the glass plate P, as shown in FIG. The connecting body 9a and the second connecting body 9b are inserted between the side wall portion 4a and the side wall portion 4b, and the first divided body 2 and the second divided body 3 are connected to assemble the main body 1 as an integrated body. preferable. If comprised in this way, it can prevent that a dust enters from a side wall part, and can prevent a glass plate from becoming dirty.
In addition, in this specification, the 1st coupling body 9a and the 2nd coupling body 9b are called the coupling body 9 generically.
[0017]
When assembling the first connecting body 9a and the second connecting body 9b between the first divided body 2 and the second divided body 3, end faces where the divided body and the connecting body 9 contact each other are, for example, FIG. As shown in FIG. 3, it is preferable to form in a step shape so that the divided body and the connecting body 9 mesh with each other. If comprised in this way, since a division body and the connection body 9 will integrate firmly, it will become the main body 1 preferable in intensity | strength.
In the present invention, the end face where the divided body and the connecting body 9 are in contact with each other is not limited to being formed in a step shape, and may be formed, for example, in a convex portion or a concave portion that can be fitted to each other.
[0018]
In this container, it is preferable that the 1st division body 2 and the 2nd division body 3 are formed in the same shape, and the 1st connection body 9a and the 2nd connection body 9b are formed in the same shape. When formed in this way, it is easy to manufacture the divided body and the connected body 9 and to manage them easily.
[0019]
In this container, as shown in FIG. 4, the main body is a box made up of a first divided body 2 and a second divided body 3 having a bottom portion 5 and a side wall portion 4 having a U-shaped horizontal section; It is preferable that the horizontal cross section connected to the upper edge of the side wall of the box includes a side wall 11 having a square shape. When the main body is configured in this way, the upper side of the glass plate is exposed when the upper side wall body 11 is removed, so that it becomes easier to take out the glass plate or the height of the box body before the side wall body 11 is attached. Even glass plates with long dimensions can be easily packed. Moreover, since the height of the 1st division body 2 and the 2nd division body 3 becomes low, the storage space is reduced by that much.
In FIG. 4, the side wall body 11 is integrated. However, the side wall body may be divided into a plurality of like the main body 1.
[0020]
In order to connect the side wall body 11 to the upper edge of the box made up of the first divided body 2 and the second divided body 3, for example, the outer sides of the upper edges of the first divided body 2 and the second divided body 3 are stepped. A stepped shape corresponding to the stepped shape is formed on the inner side of the side wall body 11, and the side wall body 11 is fitted to the box body composed of the first divided body 2 and the second divided body 3. You can combine them.
[0021]
4 may be inserted between the first divided body 2 and the second divided body 3 as shown in FIG.
[0022]
In this container, as shown in FIG. 1, each of the first divided body 2 and the second divided body 3 is a foot that supports the main body at the same height as the pallet 8 disposed below the bottom 5 thereof. has a section 12, the space portion formed by formed by legs 12, the pallet 8 four corners is cut out that is housed. When the foot portion 12 is configured in this manner, the container is less shaken during conveyance, and the glass plate is prevented from being damaged.
[0023]
In this container, it is preferable that the main body is made of a polyolefin resin expanded particle molded body. Since the foamed particle molded body is flexible, excellent in cushioning properties and lightweight, the container can be easily handled, and the glass plate can be easily prevented from being damaged when the glass plate is conveyed.
[0024]
As polyolefin resin which comprises the said polyolefin resin expanded particle molded object, what corresponds to either of following (a)-(e) is mentioned.
(A) A homopolymer of an α-olefin such as ethylene, propylene, and butene.
(B) A copolymer of two or more α-olefins.
(C) a copolymer comprising an α-olefin component and another monomer component, and the α-olefin unit component ratio is 50% by weight or more, preferably 60% by weight or more, more preferably 70% by weight or more; Preferably 80% by weight or more, most preferably 90% by weight or more of the copolymer.
(D) A mixture of two or more selected from the group of (a), (b) and (c) above.
(E) one or more selected from the group (a), (b), (c) and (d) above, and (a), (b), (c) or (d) above Is a mixed resin composition with other different synthetic resin components or / and other synthetic elastomer components, wherein the α-olefin component unit ratio in the composition is 50% by weight or more, preferably 60% by weight or more The mixed resin composition is preferably 70% by weight or more, more preferably 80% by weight or more, and most preferably 90% by weight or more.
[0025]
In the present invention, among these polyolefin resins, the main body is preferably composed of a polypropylene resin. Since the polypropylene resin foamed particle molded article is excellent in strength, for example, the same strength can be realized with a lighter weight than a polyethylene resin foamed particle molded article.
[0026]
In addition, as said polypropylene resin, what corresponds to either of following (f)-(i) is mentioned.
(F) A propylene homopolymer.
(G) A copolymer comprising a propylene component and another monomer component, and the propylene unit component ratio is 50% by weight or more, preferably 60% by weight or more, more preferably 70% by weight or more, and further preferably 80% by weight. % Or more, most preferably 90% by weight or more of a copolymer.
(H) A mixture of two or more selected from the group of (f) and (g) above.
(I) One or more selected from the group of (f), (g) and (h) above, and another synthetic resin component different from the above (f), (g) or (h) or / And other synthetic elastomer components mixed resin composition, propylene component unit ratio in the composition is 50 wt% or more, preferably 60 wt% or more, more preferably 70 wt% or more, still more preferably 80% by weight or more, most preferably 90% by weight or more of a mixed resin composition.
[0027]
Moreover, as a polyethylene-type resin, what corresponds to either of following (j)-(m) is mentioned.
(J) A homopolymer of ethylene.
(K) A copolymer composed of an ethylene component and another monomer component, and the ethylene unit component ratio is 50% by weight or more, preferably 60% by weight or more, more preferably 70% by weight or more, and still more preferably 80% by weight. % Or more, most preferably 90% by weight or more of a copolymer.
(L) A mixture of two or more selected from the group of (j) and (k) above.
(M) one or more selected from the group (j), (k) and (l) above, and other synthetic resin components different from the above (j), (k) or (l) or / And other synthetic elastomer component mixed resin composition, ethylene component unit ratio in the composition is 50 wt% or more, preferably 60 wt% or more, more preferably 70 wt% or more, still more preferably 80% by weight or more, most preferably 90% by weight or more of a mixed resin composition.
[0028]
A necessary amount of various additives such as an antistatic agent, a bubble regulator, a flame retardant, a flame retardant aid, and an inorganic filler are added to the base resin constituting the polyolefin resin foam as necessary. Can do.
[0029]
The main body of the present invention can be manufactured by a conventionally known method. However, it is preferable to manufacture by a so-called in-mold molding method. That is, resin particles are formed from a polyolefin resin using an extruder, the resin particles are expanded to form expanded particles, the expanded particles are filled in a mold, heated to a predetermined temperature, and then cooled. Is preferred. Since the in-mold molding method can be performed at a lower pressure than the injection foam molding method, a low-cost mold such as an aluminum mold can be used as the mold.
[0030]
The expansion ratio of the polyolefin resin foam (the density of the base resin / the apparent density of the foam) depends on the type of polyolefin resin that is the base resin, the size and weight of the substrate to be stored, the wall thickness of the main body, etc. Although it is determined accordingly, it is usually 3 to 50 times, preferably 4 to 40 times. If the expansion ratio is too small, the buffering property may be lost, and the substrate may not be sufficiently protected, or the lightness specific to the foam may be lost. Also, if the expansion ratio is too large, the strength tends to be insufficient, so the wall thickness must be increased to compensate for it. As a result, there is a possibility that the main body is thicker than necessary. Moreover, when the expansion ratio is too large, the main body itself is easily deformed, and there is a possibility that the glass plate housed therein is damaged.
[0031]
When the main body of the container is made of a polyolefin resin foam, the surface of the surface in contact with the glass plate (preferably the entire surface of the polyolefin resin foam) is formed in a skin structure having an apparent density larger than the inside of the wall. It is desirable. For example, at the time of in-mold forming, only the surface in contact with the inner surface of the mold can be formed in the skin structure by extending the heating time or performing post-heating.
[0032]
In this case, the apparent density of the skin structure (the apparent density of the portion from the surface to a depth of 1 mm) is 1 more than the apparent density of the inside (the apparent density measured by removing the portion 1 mm deep from the surface). .1 times or more, preferably 1.3 times or more, more preferably 1.5 to 3.5 times larger.
[0033]
In this container, after inserting and holding the edge part of the glass plate P in each groove | channel 6 of the 1st division body 2 and the 2nd division body 3, the horizontal of the 1st division body 2 and the 2nd division body 3 is held. It is preferable to fix the periphery of the direction with a string (not shown). If comprised in this way, the shape stability of the main body 1 will increase and it can convey, without damaging the glass plate P. FIG.
[0034]
Moreover, in this container, it is preferable to fix the periphery of the up-down direction with a string-like thing in the state which accommodated the several glass plate in the inside (not shown). If comprised in this way, a glass plate can be fixed firmly.
[0035]
Further, when transporting away (for example, exporting), it is preferable to wrap the entire container containing the glass plate with a moisture-proof packaging material such as a polyolefin film or an aluminum laminate film. When packaging, a hygroscopic agent such as silica gel can be placed inside.
[0036]
A plurality of glass plates can be accommodated inside the main body, and a lid can be used on the upper part of the main body (not shown). The lid body may be one in which the side wall body and the lid body are integrated. Further, the lid may be divided into a plurality of pieces.
After covering the main body with the lid, the above-mentioned string-like object may be fixed around the vertical direction with the string-like object, or may be wrapped with a moisture-proof packaging material such as a film. Examples of the material of the lid include the above-described polyolefin resin foamed particle molded body, metal, and synthetic resin.
[0037]
Examples of the material of the pallet of the present invention include the above-mentioned polyolefin-based resin foam particle molded body, metal, synthetic resin, and wood.
[0038]
【The invention's effect】
The container for transporting a glass plate of the present invention has a main body having an open top surface and a pallet housed in a space formed by a lower foot portion of the bottom of the main body, so that it can be easily carried by a forklift. it can. Further, the main body is formed to be disassembled into two or more members, and two members of the two or more members are a pair of a first divided body and a second divided body having a specific structure. Since it is a divided body, when the glass plate is not accommodated, it can be disassembled and stored, and the volume can be reduced. Accordingly, storage costs and transportation costs are lower than those of conventional containers, and even if any member is damaged, only that member can be replaced, so the replacement cost can be reduced. Moreover, since the several groove | channel which supports a glass plate is formed in a pair of surface where a 1st division body and a 2nd division body oppose, it can accommodate without damaging a glass plate.
[0039]
In the container for glass plate conveyance of this invention, when it contains a pair of connected body which consists of a 1st connection body and a 2nd connection body which connect the side wall parts of the said 1st division body and a 2nd division body, a side wall part It is possible to prevent dust from entering and prevent the glass plate from becoming dirty.
[0040]
In the container for transporting a glass plate according to the present invention, in the case of including a box made of the first divided body and the second divided body and a side wall connected to the upper edge of the side wall of the box, the upper side wall is removed. Since the upper part of the glass plate is exposed, the glass plate can be easily taken out, and even a glass plate having a high height direction before the side wall body is attached can be easily packed. Moreover, since the height of the first divided body and the second divided body is reduced, the storage space is reduced by that amount.
[0041]
In the container for transporting a glass plate of the present invention, the first divided body and the second divided body have feet that support the main body and have the same height as the pallet housed below the bottom thereof. since corners are notched palette becomes housed in the space formed by formed by parts, during transport, shaking of the container is reduced, breakage of the glass plate is prevented.
[0042]
In the container for transporting a glass plate of the present invention, when the main body is made of a polyolefin resin foamed particle molded body, it becomes a container that is easy to handle and can easily prevent breakage of the glass plate when transporting the glass plate. it can.
[Brief description of the drawings]
FIG. 1 is a partially broken perspective view showing a configuration example of a glass plate transport container according to the present invention.
FIG. 2 is a perspective view showing an example in which the first divided body and the second divided body are separated to constitute the glass plate transport container of the present invention.
FIG. 3 is a perspective view showing an example in which the glass plate transport container of the present invention is configured using a connecting body.
FIG. 4 is a perspective view showing an example in which the glass plate transport container of the present invention is configured using a side wall body.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body 2 1st division body 3 2nd division body 4, 4a, 4b Side wall part 5, 5a, 5b Bottom part 6, 6a, 6b Groove 8 Pallet 9 Connection body 11 Side wall body 12 Foot part P Glass plate

Claims (4)

A body having an upper surface opened, and a pallet disposed below the bottom of the body, the glass plate transport container in the interior of the body that space for receiving a plurality of glass plates are formed, the The main body is at the same height as the pallet at the lower four corners of its bottom and has feet that support the main body;
A pallet in which four corners are cut out is stored in a space formed on the lower side of the bottom by the foot,
The main body is formed to be disassembled into two or more members,
Two members of the two or more members are a pair of divided bodies composed of a first divided body and a second divided body having a bottom portion provided with the foot portion and a side wall portion having a U-shaped horizontal section. Yes,
A container for transporting a glass plate, wherein a plurality of grooves for supporting the glass plate are formed on a pair of surfaces on which the first divided body and the second divided body face each other.   2. The glass plate according to claim 1, wherein the main body includes a pair of connecting bodies including a first connecting body and a second connecting body that connect side wall portions of the first divided body and the second divided body. Transport container.   3. The glass plate according to claim 1, wherein the main body includes a box body including a first divided body and a second divided body, and a side wall body connected to an upper edge of the side wall of the box body. Transport container. A glass plate carrying container according to any one of claims 1 to 3 in which said body, characterized in that a polyolefin resin foamed bead molded article.

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