KR20080065903A - Article transport vehicle - Google Patents

Abstract

A plate-shaped article transport vehicle is provided to carry an article support body into and draw it out of a containing space to maintain high cleanness of the plate-shaped articles. A plate-shaped article(10) transport vehicle includes a conveyance conveyor(19), and a roller conveyor. The conveyance conveyor conveys an article support body disposed thereon. The roller conveyor includes a plurality of drive rollers(20). The drive roller is freely supported by a pair of support frames. Both ends of the article support body are supported by the drive rollers such that the article support body is conveyed by the drive roller. The drive roller protrudes such that an upper end of the drive roller is higher than a bottom of a containing space(12).

Description

Carrier for plate goods {ARTICLE TRANSPORT VEHICLE}

The present invention is a rectangular parallelepiped accommodating space for accommodating a plurality of plate-shaped articles in a posture along a horizontal direction in a side-by-side direction at intervals, provided in a state of being shielded from the outside, wherein the accommodating space is accommodated in the accommodating space. Purification toward a side wall portion facing the side wall portion from a ventilation location corresponding to one side wall portion in the side circumference of the storage space so as to ventilate the purified air between adjacent ones of the plurality of plate-shaped articles. The present invention relates to a conveying vehicle for a plate-shaped article provided with purifying air ventilation means for ventilating air.

As described above, the conveying vehicle for the plate-shaped article is provided with dust from the plurality of plate-shaped articles by the purge air venting means ventilating the purge air through adjacent ones of the plurality of plate-shaped articles stored in the storage space. It removes and conveys the some plate-shaped article accommodated in the storage space to a clean environment.

The conventional conveyance vehicle for plate-shaped articles has the outside of a storage space with purified air at the end side part adjacent to the side wall part which opposes one side wall part corresponding to a ventilation location among the rectangular bottom parts in a storage space. An opening for purifying air discharged to the air is formed, and a guide passage for guiding the purified air discharged to the outside of the storage space through the purge air discharge opening is provided at the bottom of the vehicle body. Purified air guided to the bottom is discharged to the outside from the outlet of the bottom of the vehicle body (see Patent Document 1, for example).

[Patent Document 1] Japanese Patent Publication No. Pyeongseong 11-322068

In the said conventional plate-shaped goods conveyance vehicle, since the purification | cleaning air discharge | emission opening part is provided in the edge part side part of the bottom part adjacent to the side wall part which opposes the side wall part corresponding to a ventilation location, the purification air is equivalent to a ventilation location. From the side wall portion toward the side wall portion opposite to the side wall portion. At this time, the purge air is likely to flow in the widthwise direction in the side wall portion corresponding to the ventilation location, for example, by jumping back to the side wall portion adjacent to the side wall portion corresponding to the ventilation location. Therefore, since it becomes difficult to flow sufficient purification air to the side approaching the side wall part adjacent to the side wall part corresponded to a ventilation location, it is not able to vent enough purification air over the whole storage space, and it is a plurality of stored in the storage space. There is a fear that the cleanliness of the plate-shaped article cannot be maintained high.

This invention is made | formed in view of such a point, The objective is the conveyance for plate-shaped articles which can convey the some plate-shaped articles, maintaining the cleanliness of the some plate-shaped articles accommodated in the storage space high. The point is to provide the car.

In order to achieve this object, the 1st characteristic structure of the conveyance vehicle for plate-shaped articles which concerns on this invention is a rectangular parallelepiped shape which accommodates a plurality of plate-shaped articles side by side at intervals in the up-down direction at the posture along a horizontal direction. The storage space is provided in a shielded state from the outside, and in the side circumference of the storage space so as to ventilate the purified air through the adjacent ones of the plurality of plate-shaped articles stored in the storage space. In the conveyance vehicle for plate-shaped articles provided with the purge air ventilation means which ventilates the purge air from the ventilation location corresponded to one side wall part toward the side wall part opposite the side wall part,

In the rectangular bottom part of the said storage space, the edge part side adjacent to the side wall part which opposes the one side wall part corresponded to the said ventilation location, and the one side wall part corresponding to the said ventilation location A purge air discharge opening for discharging the purge air to the outside of the storage space is formed at an end side portion adjacent to the side wall portion.

That is, the opening for purifying air discharge is not only an end side portion adjacent to the side wall portion facing one side wall portion corresponding to the ventilation portion in the rectangular bottom portion in the storage space, but also one corresponding to the ventilation portion. Since it is formed also at the end side part adjacent to the side wall part adjacent to the side wall part of the side, the purifying air not only flows from the side wall part corresponded to a ventilation location toward the side wall part facing the side wall part, but also corresponds to a ventilation location. The side wall portion adjacent to the side wall portion also actively flows.

Therefore, for the plate-shaped article which can ventilate sufficient purifying air over the whole storage space, and can convey the said some plate-shaped article, maintaining the cleanness of the some plate-shaped article accommodated in the storage space high. It is possible to provide a transport vehicle.

The 2nd characteristic structure of the conveyance vehicle for plate-shaped articles which concerns on this invention is the said purification | purification to the end side location adjacent to one side wall part corresponding to the said ventilation location among the rectangular bottom parts in the said storage space. An opening for purifying air discharge for discharging air to the outside of the storage space is provided.

That is, there is also a purifying air that hits the plate-shaped article, bounces back and flows toward the side wall portion corresponding to the ventilation location, and such purge air may inhibit the flow of the purge air ventilated by the purge air vent.

Therefore, the purge air discharge opening is formed by forming the purge air discharge opening also in the end side part adjacent to one side wall part corresponding to the ventilation location in the rectangular bottom part in the storage space. It can be actively discharged to the outside of the storage space. Therefore, since the purge air flowing toward the side wall portion corresponding to the ventilation location can be actively discharged to the outside of the storage space from the purge air discharge opening, it is possible to prevent the purge air vented from the purge air ventilation means from being impeded. Can be. As a result, the purge air ventilated by the purge air vent means is easily ventilated over the entire storage space, and the cleanliness of the plurality of plate-shaped articles can be maintained accurately high.

According to a third aspect of the present invention, there is provided a cover body for guiding purified air discharged to the outside of the storage space through the purge air discharge opening to the bottom of the vehicle body. It exists in the state connected to the said side wall part which covers a circumference part, and is provided in the state which flows purified air outside through the lower part of the lower edge.

That is, only by installing the cover body, the purified air discharged to the outside between the storage holes through the opening for purifying air can be guided to the bottom of the vehicle body, and at the same time, the purge air through the lower edge of the cover body. Can flow to the outside.

Therefore, there is no need to newly install a guide passage for guiding the purified air to the bottom of the vehicle body and an opening for flowing the purified air to the outside, thereby simplifying the configuration.

The 4th characteristic structure of the conveyance vehicle for plate-shaped articles which concerns on this invention is further above the lower edge in at least one part of the circumferential direction in the said cover body.

In the corresponding point, the external discharge opening which discharges the purification air discharged | emitted through the said purification air discharge opening toward the outer side of a vehicle body side is formed.

That is, the purge air discharged through the purge air discharge opening may not only flow outward through the lower edge of the cover body, but may also be discharged toward the outside of the vehicle body through the outside discharge opening.

By simply purifying the purge air discharged through the purge air discharge opening through the lower edge of the cover body to the outside, the amount of the purge air guided downward of the lower edge of the cover body becomes large. It is difficult to reliably discharge the product to the outside. Moreover, the flow velocity of the purification | cleaning air discharged | emitted to the exterior becomes high, and there exists a possibility that the purification | purification air may bounce | bounce back on the traveling road surface of the conveyance vehicle for plate-shaped goods, and roll up the dust on the traveling road surface.

However, since the purge air discharged through the purge air discharge opening may be discharged toward the outside of the vehicle body through the outer discharge opening, the amount of purge air guided below the lower edge of the cover is extremely limited. It is possible to reduce the number and to reliably discharge the purified air discharged through the purge air discharge opening to the outside, and also to prevent the occurrence of the roll-up of dust as described above.

A 5th characteristic structure of the conveyance truck for plate-shaped articles which concerns on this invention is comprised so that the said accommodating space may hold | maintain the article holding body which hold | maintains several plate-shaped articles in the state which spaced apart in the up-down direction, The side wall part adjacent to the one side wall part corresponding to the said ventilation location in the side periphery part of space is comprised so that it may open and close freely for carrying in and out of the said article holding body.

That is, since the storage space accommodates the article holder holding the plurality of plate-shaped articles in a state in which the spaces are arranged side by side in the vertical direction, the plurality of plate-shaped articles of the plurality of plate-shaped articles are reliably held. Purified air can be ventilated between adjacent ones. The article holding body can be carried in and out of the storage space only by opening and closing the sidewall portion adjacent to one sidewall portion corresponding to the ventilation portion in the side peripheral portion of the storage space.

Therefore, while being able to reliably hold | maintain and convey a some plate-shaped article in a clean environment, loading and unloading of the some plate-shaped article with respect to a plate-shaped goods conveyance vehicle can be performed easily.

A 6th characteristic structure of the plate-shaped goods conveyance vehicle which concerns on this invention is that the conveyance conveyor which mounts and conveys the said article holding body is provided in the bottom part of the said storage space.

That is, since the conveyance conveyor is provided in the bottom part of a storage space, an article holding body can be accommodated in a storage space in the state which supported the article holding body by the conveying conveyor. The article holding body can be carried in and out of the storage space by placing the article holding body on the conveying conveyor.

Accordingly, only by placing the article holder on the conveyer and conveying it, the article holder can be carried in and out of the storage space, and the cleanliness of the plurality of plate-shaped articles can be maintained high.

Embodiment of the conveyance vehicle for plate-shaped articles which concerns on this invention is described based on drawing.

As shown in FIG. 1, this plate-shaped goods conveyance vehicle 1 is comprised so that it may autonomously run along the travel route 2 and convey plate-shaped goods to each of the some station 3 in a clean room. have.

Although not shown in the drawing, the clean room is configured to exhaust purified dust from the ceiling toward the floor having a plurality of holes formed therein, and to discharge floating dust below the floor.

The traveling route 2 is provided so as to pass through the plurality of stations 3. Each of the plurality of stations 3 is constituted by a conveyor that freely mounts and conveys a plate-shaped article, and is disposed at intervals along the traveling route 2. In addition, since the conveyance vehicle 1 for plate-shaped articles runs on the traveling path | route 2, the strength of a floor part is reinforced without forming a hole part in a floor part.

As shown in FIGS. 2 and 4 to 7, the vehicle body 4 of the plate-shaped article transport vehicle 1 includes a plurality of traveling wheels 5 and reflectors provided along the traveling route 2. A light-receiving portion 7 for projecting light to (6) and receiving light reflected from the reflector 6 is provided.

Although not shown, the driving wheel in the driving wheel 5 is constituted by a pair of driving wheel bodies which are spaced apart from each other. An electric drive motor is directly connected to each of the drive wheel bodies, and both drive wheel bodies are separately provided so as to be capable of forward and reverse rotation driving. The driving speed of the vehicle body is configured to freely travel while varying the direction of the vehicle body 4 around the longitudinal axis by giving a difference to the rotational speeds of the two driving wheel bodies or by rotating the motors in the opposite directions. The drive motor is also provided with a rotary encoder for detecting the amount of rotation.

The said light receiving part 7 is supported by the upper end part of the support body 8 for light transmission parts which extends upward from the center part of the width direction in the rear side of the vehicle body 4. And the light receiving part 7 is comprised so that a laser beam may be transmitted in all directions and the laser beam reflected by the reflector 6 may be received. The reflector 6 is provided in multiple numbers along the traveling path 2 using the wall part etc. of a clean room.

The vehicle body 4 is provided with a control unit 9 for controlling the running of the plate-shaped article transport vehicle 1. The control unit 9 detects the position of the plate-shaped article transport vehicle 1 on the basis of the reflected light information received by the light transmitting unit 7, and moves the plate-shaped article transport vehicle 1 to the traveling path ( It is comprised so that it may run along 2) and control the running of the conveyance vehicle 1 for plate-shaped articles.

In addition, the control part 9 memorize | stores the positional information about the traveling path | route 2 containing the positional information of the some reflector 6 as a layout map. The said control part 9 transmits a laser beam in all directions from the light transmission part 7, and the conveyance vehicle 1 for plate-shaped articles with respect to the reflector 6 from the angle of the laser light etc. which are received by the light reception part 7, etc. The angle and distance of the vehicle body 4 are calculated, and the present position of the plate-shaped article carrier 1 is calculated by triangulation based on the detected information and the stored layout map.

Then, the control unit 9 controls the operation of the drive motor of the drive wheel so that the travel vehicle body 4 travels along the travel path 2 based on the calculated current position of the plate-shaped article transport vehicle 1. At the same time, the travel distance of the plate-shaped article transport vehicle 1 is managed based on the detection information of the rotary encoder.

The article conveyed by the conveyance vehicle 1 for plate-shaped articles is plate-shaped articles 10, such as a glass substrate. As shown in FIG. 3, the article holding body 11 which holds the plurality of plate-shaped articles 10 in a side by side at intervals in the up-down direction is provided. The article holding body 11 is connected to the upper frame body 11a and the lower body body 11b formed in the shape of a lattice, and the plurality of connecting bodies 11c connecting the upper body body 11a and the lower body body 11b to each other. It is provided with 11 d of wire-shaped support parts which are provided in the sieve 11c at intervals in the up-down direction, and connect the connecting bodies 11c opposing in the horizontal direction. Then, the plate-shaped article 10 is held side by side at intervals in the vertical direction in a state where it is supported by each of the supporting portions 11d, and air is supplied from all of the upper, lower, and side portions of the article holder 11. It is configured to be movable.

As shown in FIGS. 4 to 7, the vehicle body 4 is covered with a cover body 17 and is a rectangular parallelepiped storage space in a state of being shielded from the outside in the hollow space inside the cover body 17 ( 12) is formed. This storage space 12 is comprised so that the article holding body 11 which hold | maintained the some plate-shaped article 10 may be accommodated freely.

And at the ventilation location corresponded to the side wall part 15a of the vehicle front side in the side peripheral part of the storage space 12, the side wall part 15b of the vehicle body rear side from the side wall part 15a of the vehicle body front side. A fan filter unit (hereinafter, abbreviated as FFU) 13 is provided as a purge air vent means for ventilating the purge air toward the air. The FFU 13 is configured to ventilate the purified air through the air purification filter, and is provided in the state in which the FFU 13 is arranged in the vehicle body width direction in the side wall portion 15a on the vehicle body front side. In addition, the FFU 13 is configured to ventilate the purified air through adjacent ones of the plurality of plate-shaped articles 10 held in the article holder 11 accommodated in the storage space 12. .

As shown in FIG. 5, the bottom portion 14 of the storage space 12 is formed in a rectangular shape, and the purified air in the storage space 12 is stored at an end side portion of the bottom portion 14. An opening 16 for purifying air discharged to the outside of the space 12 is formed. The purge air discharge opening 16 is an end side portion 14a of the vehicle body front side adjacent to the side wall portion 15a of the vehicle body front side of the bottom portion 14, and a side wall portion 15b of the vehicle body rear side. End side portion 14b on the vehicle body rear side adjacent to the side, and end side portion 14c on the side of the vehicle body adjacent to the side wall portion 15c on the side of the vehicle body adjacent to the side wall portion 15a on the front side of the vehicle body. It is formed in each of the. The opening 16 for purifying air is constituted by a long opening, and is installed in a state in which four sides of the rectangular bottom 14 are surrounded by the opening 16 for purifying air. It is.

6 and 7, the cover body 17 guides the purified air discharged to the outside of the storage space 12 through the purge air discharge opening 16 to the bottom of the vehicle body 4. It is installed to And the cover body 17 is provided in the state connected to the side wall part which covers the side circumference part of the storage space 12, and is provided in the state which makes the purge air flow out through the lower edge.

The cover body 17 allows the purge air to flow to the outside through the lower end of the lower edge, but above the lower edge of the cover body 17, the purge air discharged through the purge air discharge opening 16. An external discharge opening 18 for discharging the gas toward the outside of the vehicle body horizontal is formed. That is, the opening 18 for external discharge | release is the lower end of the cover body 17 further below the storage space 12 in the location corresponded to the vehicle body horizontal side in the circumferential direction in the cover body 17. It is installed above the edge.

And the external discharge opening 18 is comprised from the 1st external discharge opening 18a and the 2nd external discharge opening 18b. The 1st external discharge opening 18a is provided upper side rather than the 2nd external discharge opening 18b, and is formed in elongate shape in the vehicle body front-back direction. The 2nd external discharge opening 18b is formed in the rectangular shape which arranged the some hole part, and is provided in multiple numbers at intervals in the vehicle body front-back direction.

In the bottom part 14 of the said storage space 12, as shown in FIGS. 5-7, the conveyance conveyor 19 which mounts and conveys the article holding body 11 is provided. This conveyance conveyor 19 is comprised by the roller conveyor which arranged several conveyance rollers 20 in the conveyance direction, making the conveyance direction of the article holding body 11 into a vehicle body width direction.

The drive roller 20 is a short-shaped drive roller, which is supported to rotate freely on each of the left and right pairs of the support frames 38, and is left and right in a state spaced in a direction perpendicular to the conveying direction. A pair is installed. And the conveyance conveyor 19 is comprised so that it may convey in the state which supports both ends of the article holding body 11 on the left and right pair of drive rollers 20, and is supported. Each of the plurality of drive rollers 20 arranged in the conveying direction is a timing belt spanning the drive wheel body 21 disposed in the intermediate portion of the conveying direction and the plurality of driven wheel bodies 22 disposed at intervals in the conveying direction. It is rotationally driven by moving the 23 in the longitudinal direction. The drive wheel bodies 21 are connected by the coupling shaft 25, and are integrally rotated and driven by rotationally driving the coupling shaft 25 by the electric motor 24 for a conveyer conveyor. Then, by rotationally driving the connecting shaft 25 with the electric motor 24 for the conveyer, the left and right pairs of drive rollers 20 are integrally rotated to carry the article holder 11 on the conveyance.

The drive roller 20 is provided so that the upper end thereof protrudes above the bottom portion 14 of the storage space 12, and the article holding body 11 in a state supported on the plurality of drive rollers 20. ) Is accommodated in the storage space (12).

The conveyance conveyor 19 is supported by the conveyor support part 28 provided so that it may turn freely to the turning base 27 by the rotational drive of the turning electric motor 26. As shown in FIG. The pivotal base 27 is supported so as to freely move up and down by the lifting mechanism 41 that is operated by the rotational drive of the lifting electric motor 40.

In this way, the conveyance conveyor 19 is provided so that it may turn freely by the rotational drive of the turning electric motor 26, and will raise and fall freely by the rotational drive of the elevating electric motor 40. As shown in FIG.

The sidewall portion 15c on the side of the vehicle body adjacent to the sidewall portion 15a on the front side of the vehicle body corresponding to the ventilation location in the side circumferential portion of the storage space 12 allows the article holding body 11 to be carried in and out. It is configured to open and close freely.

That is, as shown in FIG. 4, the side wall part 15b of the vehicle body horizontal side of one side of a vehicle body width direction is comprised by the shutter 30 which opens and closes freely. In addition, in FIG. 4, the state in which the shutter 30 is closed is shown by the solid line, and the state in which the shutter 30 is open is shown by the dotted line.

Both left and right sides of the lower end of the shutter 30 are supported by the lifting guide 32. Each of the pair of left and right lifting guides 32 is provided so as to move up and down freely along the guide rail 33 by the guide roller 31. A part of the timing belt 39 spanning the drive wheel body 34 arranged above and the driven wheel body 35 arranged below is fixed to each of the left and right pair of lifting guides 32. The drive wheel bodies 34 are connected by the coupling shaft 36, and are integrally rotated and driven by rotationally driving the coupling shaft 36 by the electric motor 37 for a shutter. Then, the drive shaft 36 is rotationally driven by the electric motor 37 for a shutter, and the pair of lifting guides 32 are lifted to open and close the shutter 30.

Moreover, in the state in which the shutter 30 is closed, the 1st external discharge opening 18a is arrange | positioned so that the clearance gap may be formed in the lower side adjacent location of the shutter 30. As shown in FIG. Therefore, by this 1st external discharge opening 18a, a worker's finger can be prevented from being caught when the shutter 30 is closed.

The said control part 9 controls the running of the plate-shaped goods conveyance vehicle 1, and controls the conveyance operation | movement of the conveyance conveyor 19, and opening / closing operation | movement of the shutter 30, and it is a plurality of station ( It is comprised so that the conveyance process which conveys the article holding body 11 from the station 3 of a conveyance source to the station 3 of a conveyance destination among 3) may be performed.

The operation of the transfer processing will be described.

The said control part 9 controls the running of the plate-shaped goods conveyance vehicle 1 so that it may move to the stop position corresponding to the station 3 of a conveyance source. The control unit 9 opens the shutter 30 by actuating the shutter electric motor 37 when the plate-shaped article transport vehicle 1 moves to the stop position. After that, when the conveyor in the transfer source station 3 is operated, the control unit 9 transfers the transfer conveyor 19 to receive the article holding body 11 from the transfer source station 3, The article holding body 11 is conveyed to the conveyance conveyor 19 to the appropriate position for conveyance. In addition, in receiving the article holding body 11 from the station 3 of the conveyance source, the control part 9 conveys with respect to the conveyor in the station 3 based on the detection information of the various sensors other than drawing. If the height or angle of the conveyor 19 is detected, and if it shifts from the proper loading position with respect to the conveyor in the station 3, the turning electric motor 26 and the lifting electric motor 40 are operated, and a conveyance conveyor is carried out. Adjust the position in (19).

And when the conveyance conveyer 19 conveys the goods holding body 11 to the appropriate position for conveyance, the control part 9 operates the shutter electric motor 37, closes | closes it, and accommodates it. The article holder 11 is stored in the space 12.

Thereafter, the control unit 9 controls the traveling of the plate-shaped article transport vehicle 1 so as to move to the stop position corresponding to the station 3 of the transport destination, so that the plate-shaped article transport vehicle 1 When it moves to the stop position corresponding to the station 3 of a conveyance destination, like the station 3 of a conveyance source, after carrying out opening operation of the shutter 30, the conveyance conveyor 19 is conveyed and operated, and the article holding body (11) is put down in the station 3 of a conveyance destination.

The control unit 9 stops the FFU 13 during the traveling of the plate-shaped article transporter 1 and the plate-shaped article transporter 1 and stops the article holding body between the station 3. It is configured to always operate during the conveyance processing, such as during the transfer of 11). Further, even when the storage space 12 is opened to the outside by opening the shutter 30, the infiltration of dust into the storage space 12 can be prevented by the ventilation of the purge air by the FFU 13. have. Incidentally, the operation of the FFU 13 can be operated only while the plate-shaped article transport vehicle 1 is traveling, and it can be changed as appropriate when the FFU 13 is operated.

The flow of the purified air vented from the FFU 13 in the state in which the article holder 11 is stored in the storage space 12 and the shutter 13 is closed, will be described with reference to FIGS. 5 to 7. do. 5 to 7, the flow of the purified air is indicated by an arrow.

The FFU 13 ventilates the purge air so as to pass between adjacent ones of the plurality of plate-shaped articles 10 held by the article holder 11 from the side wall portion 15a on the front side of the vehicle body. The purge air flows toward the side wall portion 15b on the rear side of the vehicle body and also flows toward the side wall portion 15c on the side of the vehicle body. Purified air flowing toward the side wall portion 15b on the rear side of the vehicle body is purged air discharged at the end side portion 14b on the rear side of the vehicle body of the bottom portion 14 adjacent to the side wall portion 15b on the rear side of the vehicle body. It is discharged to the outer lower side of the storage space 12 through the opening 16. The purge air flowing toward the side wall portion 15c on the side of the vehicle body is also discharged from the purge air formed at the end side portion 14c on the side of the body of the bottom portion 14 adjacent to the side wall portion 15c on the side of the vehicle body. It is discharged to the outer lower side of the storage space 12 through the opening 16.

Further, some of the purge air vented from the FFU 13 may flow toward the side wall portion 15a on the front side of the vehicle body, for example, by colliding with the plate-shaped article 10 and coming back. Such purge air is also discharged to the outer lower side of the storage space 12 through the purge air discharge opening 16 formed in the end portion 14a of the vehicle body front side of the bottom 14.

In this way, the purified air ventilated from the FFU 13 is ventilated through the entire rectangular storage space 12, and in the bottom portion 14 of the rectangular storage space 12, It is discharged | emitted below the storage space 12 from the purifying air discharge opening part 16 formed in all the end side parts 14a-14c.

The purge air discharged to the outside downward side of the storage space 12 through the purge air discharge opening 16 is a part of the vehicle body from the first external discharge opening 18a and the second external discharge opening 18b. Discharge toward the outside of the street. In addition, a part of the rest is discharged to the outside through the lower edge of the cover body 17.

In this way, the purifying air is discharged from the first external discharge opening 18a and the second external discharge opening 18b toward the outer side of the vehicle body as well as below the lower edge of the cover body 17. The discharge to the outside of the purified air discharged to the outside of the storage space 12 through the discharge opening 16 is assuredly performed.

[Separate embodiment]

(1) In the above embodiment, in the bottom portion 14 of the rectangular storage space 12, the purifying air discharge openings 16 are provided in all the end side portions 14a to 14c on all sides. It is also possible to carry out without providing the purge air discharge opening 16 in the end side portion 14a on the vehicle body front side adjacent to the side wall portion 15a on the vehicle body front side.

(2) In the above embodiment, the cover body 17 guides the purge air discharged to the outer lower side of the storage space 12 through the purge air discharge opening 16 to the bottom of the vehicle body 4; However, for example, a guide passage for guiding the purge air discharged to the outside of the storage space 12 through the purge air discharge opening 16 to the bottom of the vehicle body 4 may be provided. Whether to guide purge air can be changed as appropriate.

(3) In the said embodiment, although the external discharge opening 18 is provided in the location corresponded to the vehicle body horizontal side of the cover body 17, what kind of position to arrange | position the external discharge opening 18 is suitably. Changes are possible. Moreover, the arrangement | positioning number of the external discharge opening 18 can also be changed suitably.

(4) Although the conveyance conveyor 19 is provided in the bottom part 14 of the storage space 12 in the said embodiment, instead of this conveyance conveyor 19, the fork type provided with the fork so that it could leave freely. It can also be carried out by installing a transfer device. The carrying device provided for carrying the article holding body 11 between the station 3 can adapt various carrying values.

(5) In the said embodiment, although the FFU 13 is arrange | positioned at the side wall part 15a of the vehicle body front side, the FFU 13 can also be arrange | positioned to the side wall part 15b of the vehicle body rear side.

(6) In the above embodiment, although the opening 16 for purifying air discharge is made into an elongate opening having the same width, the shape of the purifying air discharge opening 16 can be appropriately changed. For example, the width | variety of the body air front opening side made the purification | cleaning air discharge opening 16 formed in the end side part 14c of the vehicle body horizontal side adjacent to the side wall part 15c of the vehicle body horizontal side narrower, and the vehicle body rear side. As the width increases, the plurality of plate-shaped articles 10 purify air vented by the FFU 13 by suppressing a large amount of purge air from being discharged to the outside of the storage space 12 on the front side of the vehicle body. It is also possible to pass between the adjacent ones of the poles as much as possible.

1 is a plan view showing a traveling route of a plate-shaped article carrier

2 is a perspective view of a carrier for plate-shaped article

3 is a perspective view of an article holder

4 is a longitudinal sectional view seen from the vehicle body width direction of a plate-shaped article transport vehicle;

Fig. 5 is a cross sectional view of a transport vehicle for a plate-shaped article;

Fig. 6 is a longitudinal sectional view of the plate-shaped article transport vehicle as viewed in the vehicle body width direction;

Fig. 7 is a longitudinal sectional view of the plate-shaped article transport vehicle as seen in the front and rear width directions of the vehicle body;

<Description of the symbols for the main parts of the drawings>

10: plate-shaped article 11: the article holder

12: storage space 13: purifying air ventilation means

16 opening for purifying air 17 cover body

18: opening for external discharge 19: conveying conveyor

Claims (6)

A rectangular parallelepiped accommodating space for accommodating a plurality of plate-shaped articles in a posture along the horizontal direction in a side-by-side direction at intervals is provided in a state of being shielded from the outside, The side wall part from the ventilation location corresponded to one side wall part in the side circumference part of the said storage space so that purge air may be ventilated through the adjoining of the several plate-shaped articles accommodated in the said storage space. A conveyance vehicle for plate-shaped articles provided with purge air vent means for ventilating purge air toward a side wall portion opposite the In the rectangular bottom part of the said storage space, the edge part side adjacent to the side wall part which opposes the one side wall part corresponded to the said ventilation location, and the one side wall part corresponding to the said ventilation location A conveyance vehicle for plate-shaped articles, in which an opening for discharging the purified air is discharged to the outside of the storage space at an end side portion adjacent to the side wall. The purification according to claim 1, wherein the purge air is discharged to the outside of the storage space at an end side portion of the rectangular bottom portion in the storage space adjacent to the side wall portion corresponding to the ventilation location. Carrier for plate-shaped goods in which the opening part for air discharge is formed. The said side wall part of Claim 1 or 2 in which the cover body which guides the purification air discharged | emitted to the exterior of the said storage space through the said opening for purifying air to the bottom part of a vehicle body covers the side peripheral part of the said storage space. Carrier for plate-shaped goods provided in the state connected to and in the state which flows purified air to the outside through the lower end of the lower edge. 4. The purge air discharged through the purge air discharge opening in at least a part of the circumferential direction of the cover body and at a substantial portion above the lower edge thereof is disposed outside the vehicle body horizontally. Carrier for plate-shaped goods in which the opening for external discharge | emission which discharge | ejects toward is formed. The article storage device according to any one of claims 1 to 4, wherein the storage space is configured to accommodate an article holder for holding a plurality of plate-shaped articles in a state of being spaced in the vertical direction. A plate-shaped article transport vehicle configured to freely open and close a side wall portion adjacent to one side wall portion corresponding to the ventilation portion in the side circumference of the storage space for carrying in and out of the article holder. The conveyance vehicle for plate-shaped articles of Claim 5 provided with the conveying conveyor which mounts and conveys the said article holding body in the bottom part of the said storage space.

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