JPH061290U - Substrate transport container - Google Patents

Abstract

(57) [Summary] [Structure] On the bottom surface of the hollow main body integrally formed of synthetic resin, legs for making the draft of the taper horizontal are integrally formed. [Effects] By integrally forming the legs on the bottom surface of the main body, the substrate can be placed horizontally without changing the design of the substrate locking portion that requires the most parallelism. Therefore, even when automatic insertion is performed, chipping or cracking can be prevented as much as possible. Moreover, its structure is simple.

Description

[Detailed description of the device]

[0001]

[Technical Field of Device]

 The present invention relates to a substrate transport container for storing and transporting several tens of glass substrates or wafers.

[0002]

[Technical background of the device]

 Generally, when moving glass substrates for liquid crystal etc. to another place due to the manufacturing process, etc., the lid should be in the state where it is housed so that the substrates do not come into contact with each other and contamination is prevented and they can be transported safely. A substrate carrier is used that is densely capped.

Such a substrate transport container is usually formed of a synthetic resin that is lightweight and easy to mold, and the substrates are housed side by side in the horizontal or vertical direction. FIG. 11 shows a conventional horizontal type transporting container 10 for a substrate whose opening is oriented in the horizontal direction. When molding such a horizontal-type transport container in which substrates are arranged horizontally, the opening 2 of the hollow body 1 is formed horizontally, and the opening 2 is formed horizontally in the shape of a shelf. The boards are inserted one by one into the board locking portions 3 thus formed, and then the lid 5 is fitted.

A large number of substrates stored in the transport container in this manner are transported while being protected from the pollution environment for the manufacturing process and the like, and stored in a horizontal state. Further, when the substrate is taken out from the transport container 10, it is sucked by a vacuum suction jig or the like and taken out automatically or manually.

By the way, in such a transport container 10, when the board is taken in and out, if the board is not operated in a horizontal state, the end surface of the board will come into contact with the board locking portion 3 and the board locking portion 3 There is a risk of scraping. In particular, when a glass substrate or the like is put in or taken out, even if the parallelism of the young is deviated, there is a problem that chipping easily occurs due to the end face and the substrate surface is contaminated by shavings. In consideration of such a problem, it is preferable that the substrate locking portion 3 of the substrate transport container 10 is formed as horizontally as possible.

On the other hand, however, when molding the hollow main body 1 of such a carrying container 10 with a mold, the width dimension is reduced from the opening 2 to the wall 4 for convenience of molding, It is necessary to provide a draft P here. However, if the draft P is provided on the bottom surface in this way, a slight error will occur in the levelness of the board engaging portion 3. Then, chipping may occur when the substrate is taken in and out, and cracks may easily occur on the end face of the substrate, which seriously affects the quality. This tendency is particularly remarkable when automatically taking in and out.

In order to secure the parallelism of the substrate engaging portion 3 in consideration of the draft P at the time of molding, it is conceivable that the substrate engaging portion 3 is slightly deviated in advance. If it is set to a higher level, higher processing accuracy is required and it is difficult to achieve this.

[0008]

[The purpose of the device]

 The present invention has been made in view of such a situation, and has a structure that easily causes chipping when a substrate is automatically put in and taken out from a hollow container with an opening facing sideways or cracks on the end face of the substrate. It is an object of the present invention to provide a substrate transport container that can be reliably prevented.

[0009]

[Outline of the device]

 According to the present invention for achieving the above object, a hollow body is integrally molded of synthetic resin, has an opening portion that opens horizontally in one side portion in a mounted state, and has a bottom side portion for die cutting. And a plurality of substrate locking portions for locking the substrates on opposite side wall portions inside the hollow body in a shelf shape, and the substrate is substantially horizontal from the opening portion. In the substrate transporting container, which is hung on the substrate locking portion inside and accommodated in the hollow body, a leg portion for making a draft formed on the bottom surface of the hollow body horizontal is provided in the hollow body. It is characterized by being integrally molded on the bottom surface of the main body.

According to the substrate transport container according to the present invention, the substrate can be placed horizontally without changing the design of the substrate locking portion of the hollow body which requires the most parallelism. Therefore, chipping or cracking can be prevented as much as possible even during automatic insertion, and the structure is simple.

[0011]

[Specific explanation of the device]

 Hereinafter, the present invention will be described with reference to the drawings. FIG. 1 illustrates a substrate transporting container 20 according to an embodiment of the present invention. The substrate transport container 20 includes a hollow main body 40 and a lid 30 fitted to the hollow main body 40, and has a substantially rectangular cross section. The hollow main body 40 and the lid 30 are integrally molded of synthetic resin. As shown in FIG. 2, an opening 21 is formed at one end of the hollow body 40, and a pawl 22 for elastically engaging the lid 30 is formed at this end. Further, in the hollow body 40, a plurality of substrate locking portions 23 for locking a substrate (not shown) are formed on both sides in a shelf shape. These board engaging portions 23 may be formed continuously on both sides, or may be partially formed on both sides. In addition, a chamfer is formed at a portion of each of the board engaging portions 23 that faces the opening 21, which facilitates insertion of the board. Further, reinforcing ribs 26 are formed at a plurality of locations on the outer surface of the hollow body 40.

As shown in FIG. 1, the transport container 20 is placed horizontally on a horizontal surface, and a bottom side portion 24 thereof has a draft P for die cutting. Further, as shown in FIG. 2, the bottom side portion 24 has a stepwise thick wall.

Further, on the bottom side portion 24 of the hollow body 40, leg portions 27 having a triangular cross section are provided at both ends so that a reference plane A parallel to the substrate locking portion 23 can be placed on a horizontal plane. It is formed individually. A slide core is used to mold such a leg portion 27, and when this core is to be removed, die cutting may be performed in a direction perpendicular to the dividing surface of the upper die and the lower die.

The hollow body 40 formed in this way is set on a mounting table (not shown) with the claws 22 removed. Therefore, the board locking portion 23 having the leg portion 27 can be arranged in parallel to the reference plane A parallel to the horizontal plane.

When accommodating the substrate in the hollow main body 40 arranged horizontally in this manner, the opening 21 is formed with a tapered chamfer, so that the contact with the substrate is made small and the substrate is taken in and out. It is possible to prevent chipping and breakage at the time.

As shown in FIG. 1, the lid body 30 is fitted into the hollow main body 40 accommodating the substrate in this way, whereby the substrate is transported while being protected from the contaminated environment. Or after that, it is stored in a predetermined place. This prevents contamination of the substrate.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made. For example, in the above embodiment, the two leg portions 27 are provided in parallel with the board insertion direction, but instead of this, as shown in FIGS. 3A and 3B, three legs 27 are provided in parallel with the board insertion direction. You may provide the linear leg part 27.

Further, as shown in FIGS. 4A and 4B, two leg portions 28, 28 may be provided on the bottom side portion 24 in a direction orthogonal to the board insertion direction. In this case, the leg portion 28 formed on the side of the opening 21 of the hollow body 40 has a smaller height than the other leg portion 28, whereby the reference plane A is formed.

Further, as shown in FIGS. 5A and 5B, three leg portions 28 may be provided on the bottom side portion 24 in a direction orthogonal to the board insertion direction. Further, as shown in FIGS. 6A and 6B, a set of two leg portions 29 may be provided at the four corners of the bottom side portion 24.

Further, as shown in FIGS. 7A and 7B, a linear leg portion 28 may be further provided in the center of the pair of leg portions 29 in parallel with the board insertion direction. Further, as shown in FIGS. 8A and 8B, the linear leg portion 28 shown in FIG. 7 may be provided in a direction orthogonal to the board insertion direction.

Further, as shown in FIG. 9, a rectangular leg portion 31 may be provided on the bottom side portion 24. Also in this case, the height of the leg is made smaller as it is closer to the opening 21, and thus the reference plane A 1 is formed.

Further, as shown in FIG. 10, ribs 32 may be inserted in the rectangular leg portion 31 shown in FIG. 9 in the board insertion direction and the orthogonal direction. Even with the leg portions having the above-described shapes, the same action and effect as the leg portion 27 shown in FIG. 1 can be obtained. That is, the hollow body 40 having the draft P can be placed in a horizontal state. Therefore, even if the substrate is automatically taken in and out, no chipping or cracking will occur.

[0023]

[Effect of device]

 As described above, according to the board carrier of the present invention, the legs are integrally formed on the bottom surface of the main body, so that the board locking portion that requires the most parallelism can be designed. The substrate can be placed horizontally. Therefore, chipping or cracking can be prevented as much as possible even during automatic insertion. Moreover, its structure is simple.

[Brief description of drawings]

FIG. 1 is a bottom view of a substrate transporting container according to an embodiment of the present invention.

FIG. 2 is a half sectional view of a hollow container of a substrate transport container according to an embodiment.

3A and 3B are a side view and a bottom view showing a first modified example of the embodiment.

4A and 4B are a side view and a bottom view showing a second modification of the embodiment.

5A and 5B are a side view and a bottom view showing a third modified example of the embodiment.

6A and 6B are a side view and a bottom view showing a fourth modified example of the embodiment.

7A and 7B are a side view and a bottom view showing a fifth modified example of the embodiment.

8A and 8B are a side view and a bottom view showing a sixth modified example of the embodiment.

9A and 9B are a side view and a bottom view showing a seventh modified example of the embodiment.

10A and 10B are a side view and a bottom view showing an eighth modified example of the embodiment.

FIG. 11 is a half sectional view of a conventional substrate transport container.

[Explanation of symbols]

 20 ... Substrate transport container 24 ... Bottom side part 27, 28, 29, 31 ... Leg part 40 ... Hollow body

Claims (1)

[Scope of utility model registration request] 1. The hollow main body is integrally molded of synthetic resin, has an opening that opens horizontally in one side when placed, and has a draft angle for die cutting on the bottom side, Further, a plurality of board locking portions for locking the boards are provided in a shelf shape on opposite side wall portions inside the hollow main body, and the boards are substantially horizontal from the opening, and the board locking portions in the main body are provided. In a substrate transport container which is hung over and accommodated in the hollow body, a leg portion for making a draft formed on the bottom surface of the hollow body horizontal is integrally formed on the bottom surface of the hollow body. A substrate transport container characterized by: