JP2006173363A - Carrier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a carrier of light weight and high rigidity whose bottom plate does not warp. <P>SOLUTION: The carrier 1 is composed of a bottom plate 3 and a frame plate 5 provided on the bottom plate 3. The bottom plate 3 is formed with a plurality of holes 7 passing through the bottom plate 3. The bottom plate 3 is composed of a styrol plate 9 and FRP (Fiber Reinforced Plastics) plates 11a, 11b stuck to up and down the styrol plate 9. Resin sheets 13a, 13b are stuck to the FRP plates 11a, 11b. A resin coat 15 is applied on the side surface of the styrol plate 9, the FRP plates 11a, 11b and resin sheets 13a, 13b. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a carrier.

  Conventionally, when storing and transporting a color filter substrate in which projections such as a black matrix, a colored layer, a transparent conductive film layer and a spacer are formed on the surface of a glass substrate which is a plate glass and its processed product, the surface of the glass substrate is damaged. In order to protect from damage, the glass substrates are carried on a tray-like carrier so that the glass substrates do not contact each other.

9A and 9B are views showing the structure of the transport body 51. FIG. 9A is a top view, FIG. 9B is a cross-sectional view taken along the line GG in FIG. 9A, and FIG. It is a figure which shows the state which mounted the glass substrate 57 in b). FIG. 10 is a diagram showing a case where the transport bodies 51 are stacked.

As shown in FIGS. 9A and 9B, the transport body 51 includes a flat bottom plate 53 and a frame-shaped frame plate 55.
The bottom plate 53 is made of aluminum or the like, and the frame plate 55 is made of aluminum or rubber.
Further, as shown in FIG. 9C, the glass substrate 57 is placed on the bottom plate 53.

When transporting the glass substrate 57, as shown in FIG. 10, the transport body 51 on which the glass substrate 57 is placed is in contact with the frame plate 55 of the lower transport body 51 and the bottom of the bottom plate 53 of the upper transport body. In this way, they are stacked on the pallet 59, and after packing a certain number, they are packed and transported. Such a carrier 51 includes the following.

JP 2002-353302 A

However, in such a carrier 51, the bottom plate 53 is bent by its own weight as shown in FIG. 10, and the bent bottom plate 53 comes into contact with the glass substrate 57 placed on the lower carrier 51, so that the glass substrate 57 There was a risk of damaging the surface.
For this reason, it is not possible to stack too many transport bodies 51, and it is necessary to transport the transport bodies 51 in small portions during transportation, which increases transportation costs.

The present invention has been made in view of such problems, and an object of the present invention is to provide a lightweight, high-hardness carrier that does not bend the bottom plate.

In order to achieve the above-mentioned object, the present invention is a transport body having a bottom plate having a layer structure and a frame plate provided on the bottom plate.
The layer structure is configured such that a plastic plate sandwiches a core material.
The plastic plate is made of fiber reinforced plastic, and the fibers are provided so as to be orthogonal to each other.
The bottom plate has a resin film formed on the surface or side surface.
The frame plate may be provided continuously over the entire periphery of the bottom plate or may be provided intermittently.
The bottom plate and the frame plate have a positioning mechanism when the transport bodies are stacked, and specifically, positioning concave portions and convex portions are provided at corner portions. Alternatively, positioning pins and holes may be provided.
The bottom plate is provided with a plurality of holes for passing a fork on which the glass substrate is placed when the glass substrate is mounted.

In the present invention, since the bottom plate of the carrier has a layer structure of a plastic plate and a core material, the bottom plate is lightweight and is not easily bent.

  According to the present invention, since the bottom plate of the transport body has a layer structure, it is lightweight and high in hardness, the bottom plate is difficult to bend, the transport body can be transported in a large amount, and the transportation cost is reduced. The

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail based on the drawings. 1 and 2 are diagrams showing a carrier 1 according to the present embodiment, in which FIG. 1 is a perspective view, FIG. 2 (a) is a top view, and FIG. 2 (b) is A in FIG. 2 (a). FIG. 2C is a cross-sectional view taken along the line BB in FIG.

As shown in FIGS. 1, 2 (a), and 2 (b), the carrier 1 includes a flat bottom plate 3 and a frame-like frame plate 5 provided on the bottom plate 3. Are provided with a plurality of holes 7 penetrating the bottom plate 3.
Further, as shown in FIG. 2 (c), the bottom plate 3 includes a polystyrene plate 9 as a core material on a flat plate and thin plate-like FRP (Fiber Reinforced Plastics) plates 11a and 11b attached to the top and bottom of the polystyrene plate 9. Consists of.

That is, the bottom plate 3 has a layer structure including a styrene plate 9 and FRP plates 11a and 11b, and is a so-called sandwich panel.
Further, sheet-like resin sheets 13a and 13b are attached to the FRP plates 11a and 11b, and a resin coat 15 is applied to the side surfaces of the styrene plate 9, the FRP plates 11a and 11b, and the resin sheets 13a and 13b. Yes.

The polystyrene plate 9 is desirably as light as possible to reduce the weight of the bottom plate 3, and for example, polystyrene having a foaming ratio of 3 times or more is used.
The FRP plates 11a and 11b are preferably those in which fibers such as carbon fibers and glass fibers are arranged in two orthogonal directions in order to prevent the bottom plate 3 from being bent.
The resin sheets 13a and 13b are protective sheets for preventing the glass substrate 17 from being damaged when the glass substrate 17 is placed on the bottom plate 3, and polystyrene or the like is used.

The resin coat 15 is a film for protecting the side surface of the bottom plate 3, and a resin paint is used.
The frame plate 5 serves as a support for preventing the glass substrate 17 from falling from the bottom plate 3, and prevents the glass substrate 17 and the bottom surface of the bottom plate 3 from coming into contact with each other when the carriers 1 are overlapped. It serves as a spacer, and aluminum, rubber or the like is used.
As will be described later, the hole 7 is for allowing the lift fork 25 to pass when the glass substrate 17 is placed on the carrier 1.

Next, a procedure for placing the glass substrate 17 on the carrier 1 will be described.
Since the glass substrate 17 cannot touch the upper surface, an apparatus and a procedure capable of placing the glass substrate 17 on the transport body 1 without touching the upper surface are required.
FIGS. 3A, 3 </ b> B, and 3 </ b> C are diagrams illustrating a procedure for placing the glass substrate 17 on the carrier 1.

First, the transport lift 18 used when placing the glass substrate 17 on the transport body 1 will be described.
As shown in FIG. 3A, a transport lift 18 is used when placing the glass substrate 17 on the transport body 1. The transport lift 18 includes a plurality of columnar forks 19, a columnar rod 21 connected to the plurality of forks 19, and an actuator 23 that is a drive device connected to the rod 21. The actuator 23 moves the rod 21 up and down. As a result, the fork 19 is moved up and down.

Next, a procedure for placing the glass substrate 17 on the carrier 1 will be described.
First, as shown in FIG. 3A, first, the transport body 1 is moved to the upper part of the transport lift 18. When moving, the frame plate 5 of the carrier 1 is moved by grasping it with a robot arm or the like.

Next, as shown in FIG. 3B, the actuator 23 of the transport lift 18 is operated to move the fork 19 in the C direction, and the fork 19 is passed through the hole 7 provided in the bottom plate 3.
Next, separately, the glass substrate 17 placed on the lift fork 25 is moved onto the transport body 1, and the glass substrate 17 is placed on the fork 19 of the transport lift 18.
The lift fork 25 is a fork such as a forklift.

Next, as shown in FIG. 3C, the lift fork 25 is removed from the glass substrate 17, the actuator 23 of the transport lift 18 is operated to move the fork 19 in the D direction, and the fork 19 is moved to the hole 7 in the bottom plate 3. Remove from.
By using the method as described above, the glass substrate 17 can be placed on the carrier 1 without touching the upper surface of the glass substrate 17.

FIG. 4 is a diagram illustrating a case where the conveyance bodies 1 on which the glass substrate 17 is mounted are stacked.
As shown in FIG. 4, the carrier 1 is stacked on a pallet 27 and packed with an upper lid 29.
Since the bottom plate 3 is lightweight and hard as described above, it is difficult to bend, and more transport bodies 1 can be stacked as compared with the conventional case.

Now, as shown in FIG. 4, when the transport bodies 1 are stacked, the transport bodies 1 may be displaced from each other. Therefore, it is desirable to provide positioning protrusions and the like.
FIG. 5 is a partial view of the conveyance body 1 provided with the positioning convex portion 31 and the positioning concave portion 33, and FIG. 6 is a detailed view of the positioning convex portion 31 and the positioning concave portion 33.

As shown in FIG. 5, positioning convex portions 31 are provided at the corner portions of the frame plate 5 of the carrier 1, and positioning concave portions 33 are provided at the corner portions of the bottom plate 3.
As shown in FIG. 6A, the positioning convex portion 31 is provided with a convex portion 35, and the positioning concave portion 33 is provided with a concave portion 37.

  At the time of positioning, as shown in FIG. 6B, by moving the positioning concave portion 33 in the E direction and fitting the convex portion 35 of the positioning convex portion 31 into the concave portion 37 of the positioning concave portion 33, Accurate positioning can be performed.

  Now, the frame plate 5 in the carrier 1 serves as a support for preventing the glass substrate 17 from falling from the bottom plate 3, and prevents the glass substrate 17 and the bottom plate 3 from contacting when the carrier 1 is stacked. As described above, it has a role as a spacer for performing the above, but conversely, if it plays the above role, the frame plate 5 is not necessarily provided continuously on the entire circumference of the bottom plate 3 without a gap. There is no need.

  FIGS. 7 and 8 are views showing modifications of the carrier 1, in which FIG. 7 is a perspective view, FIG. 8 (a) is a top view, and FIG. 8 (b) is a view in the direction D in FIG. FIG. FIG. 8C is a rear view of FIG.

As shown in FIG. 7, the bottom plate 3 is provided with block-shaped frame plates 5a, 5b, 5c, 5d, 5e, 5f, 5g, 5h, 5i, and 5j. Thus, a plurality of frame plates may be provided intermittently in a block shape.
However, in such a structure, since the contact area between the bottom plate 3 and the frame plate 5 is reduced when the carrier 1 is overlapped, if the frame plate is too small, the surface pressure applied to the frame plate 5 increases, and the frame plate 5 may be deformed or damaged.

Therefore, as shown in FIG. 8A, the lengths 43a, 43b, 43c, 43d, 43e, 43f, 43g of the frame plates 5a, 5b, 5c, 5d, 5e, 5f, 5g, 5h, 5i, 5j, It is desirable that the sum of 43h, 43i, and 43j is at least 50% or more of the total circumference of the bottom plate 3.

In addition, when a plurality of frame plates are provided in a block shape in this manner, it may be difficult to attach the positioning convex portion 31 and the positioning concave portion 33 as described above. As shown in a), columnar positioning pins 39a, 39b, 39c, and 39d are provided at the corners of the bottom plate 3, and pin holes 41a, 41b, and 41c are formed in the bottom of the bottom plate 3 as shown in FIG. 41d is desirable.
In addition, when the conveyance body 1 is overlapped, the positioning pins 39a, 39b, 39c, and 39d are inserted into the pin holes 41a, 41b, 41c, and 41d to perform positioning.

As described above, according to the present embodiment, the bottom plate 3 has a layer structure including the lightweight polystyrene plate 9 and the high-hardness FRP plates 11a and 11b, and the bottom plate 3 as a whole is lightweight and high hardness. Therefore, the bottom plate 3 is difficult to bend, and more transport bodies 1 can be stacked as compared with the conventional case.
Accordingly, a large amount of the transport body 1 can be transported at a time, and the transport cost is reduced.

  As mentioned above, although embodiment of this invention was described referring an accompanying drawing, the technical scope of this invention is not influenced by embodiment mentioned above. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the technical idea described in the claims, and these are naturally within the technical scope of the present invention. It is understood that it belongs.

The figure which shows the conveyance body 1 The figure which shows the conveyance body 1 The figure which shows the procedure at the time of mounting the glass substrate 17 on the conveyance body 1. The figure which shows the case where the conveyance body 1 carrying the glass substrate 17 is piled up. Partial view of the carrier 1 provided with positioning convex portions 31 and positioning concave portions 33 Detailed view of positioning convex portion 31 and positioning concave portion 33 The figure which shows the modification of the conveyance body 1 The figure which shows the modification of the conveyance body 1 The figure which shows the structure of the conveyance body 51 The figure which shows the case where the conveyance body 51 is piled up

Explanation of symbols

1 ………… Conveyer 3 ………… Bottom plate 5 ………… Frame plate 7 ………… Hole 9 ………… Styrofoam plate 11a …… FRP plate 13a …… Resin sheet 15 ……… Resin coat 17 ……… Glass substrate 18 ……… Transfer lift 19 ……… Fork 21 ……… Rod 23 ……… Actuator 25 ……… Lift fork 27 ……… Pallet 29 ……… Upper lid 31 ……… Position for positioning 33 ......... Positioning portion 35 ......... Convex portion 37 ......... Depression 39a ... Positioning pin 41a ... Pin hole 51 ......... Transport body 53 ......... Bottom plate 55 ......... Frame plate 57 ......... Glass substrate

Claims (11)

A bottom plate having a layer structure;
A frame plate provided on the bottom plate;
A carrier having the following characteristics. The carrier according to claim 1, wherein the layer structure is a structure in which a plastic plate sandwiches a core material.   The said plastic board consists of fiber reinforced plastics, The conveyance body of Claim 2 characterized by the above-mentioned.   The carrier according to claim 3, wherein the fiber reinforced plastic has fibers arranged in two orthogonal directions.   The carrier according to claim 1, wherein a resin film is formed on a surface or a side surface of the bottom plate.   The said frame board is provided continuously over the perimeter of the said baseplate, The conveyance body of Claim 1 characterized by the above-mentioned.   The carrier according to claim 1, wherein the frame plate is provided intermittently over the entire circumference of the bottom plate.   The carrier according to claim 1, wherein the bottom plate and the frame plate have a positioning mechanism when the carriers are stacked.   The transport body according to claim 8, wherein the positioning mechanism includes a convex portion and a concave portion.   The carrier according to claim 8, wherein the positioning mechanism includes a pin and a hole.   The carrier according to claim 1, wherein the bottom plate is provided with a plurality of holes.

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