JPH0319123B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to cargo storage equipment for storing various cargoes.

BACKGROUND TECHNOLOGY In general, cargo storage equipment has a shelf that has a plurality of compartment storage spaces in the vertical direction, and a cargo holder that can move freely along a fixed path along the shelf and can move up and down as well as move in and out laterally. It consists of a loading/unloading device. In other words, in the past, for example, JP-A-53-
The configuration found in Publication No. 91734 is provided.
In this conventional configuration, a stacker having a plurality of cells formed in the vertical and horizontal directions is provided, and a traveling crane with a U-shaped side surface that runs horizontally along the surface where the openings of the stacker are arranged is provided.
This traveling crane is equipped with a machine hand that can be raised and lowered.

However, in this conventional configuration, there is no disclosure of a specific configuration in which the guide rail of the traveling crane is integrally attached to the stacker, and therefore, at the site, the machine hand of the traveling crane cannot be elevated to the cell. It cannot be expected that assembly will be performed easily and precisely so that they can be stopped facing each other with precision.

For this purpose, a stacker crane has been proposed, which can be seen, for example, in Japanese Patent Application Laid-Open No. 50-27274. In this conventional configuration, a guide rail is provided at the lower part of the article storage shelf and a traveling rail is provided in the middle part, and the stacker crane is provided with a guide wheel guided by the guide lane and a traveling wheel supported and guided by the traveling rail. In addition, the Statzker crane is equipped with a motor that is linked to the traveling wheel.

Problems to be Solved by the Invention According to such a conventional configuration, the support guide parts of both wheels for both rails are exposed to the outside, and the transmission part of the motor is also exposed to the outside, so these operating parts are There is a risk that dust generated due to wear and tear may float or fall and adhere to the storage areas in the item storage shelves. Therefore, it cannot be easily adopted for storage in clean rooms where semiconductors and the like are handled.

It is an object of the present invention to provide cargo storage equipment that can prevent dust generated in the traveling guide section and the traveling drive section from flowing out to the outside, and that can be easily and accurately assembled on-site.

Means for Solving the Problems In order to achieve the above object, the cargo storage equipment of the present invention includes a shelf in a clean room having a plurality of compartment storage spaces in the vertical direction, and a shelf that can freely travel on a fixed path along the shelf. A loading/unloading device is provided which has a load holder that is large and can move up and down as well as move in and out in the lateral direction. The two rails are integrated into the shelf side, and at least the lower rail and the travel drive device for the loading/unloading device are disposed within the shelf body and separated from the divided storage space, and these lower rails are integrated into the shelf side. A dust-proof cover is provided to prevent dust generated in the rail section and travel drive unit from flowing out.

According to the configuration of the present invention, dust generated from the lower rail and travel drive device, which tend to generate dust due to wear and tear, can be kept in the lower part of the shelf main body and can be prevented from migrating to the divided storage space side. At the same time, the dust cover can prevent the dust from leaking into the clean room. Furthermore, since the relative positional relationship between the shelf and the lower rail can be determined with precision in the manufacturing factory, it is only necessary to consider the erection accuracy of only the upper rail at the assembly site.

Embodiment An embodiment of the present invention will be described below based on the drawings. 1 is a clean room, in which clean air 4 is blown down from the ceiling 2 side through a filter 3,
It is constructed so that the descending air is sucked under the floor through a mesh type floor 5. Reference numeral 6 denotes a shelf, which includes a box-shaped main body 7 with an open front, a large number of vertical frames 8 arranged horizontally in parallel within this main body 7, a large number of front and rear frames 9 attached to these vertical frames 8 in the vertical direction, and A loading/unloading port 11 is formed by cutting out the main body 7 at the lower part.
It consists of an inlet loading tray 12 and an unloading loading tray 13 that protrude to the back side through the loading and unloading opening 11, and a plurality of divided storage spaces are formed in the vertical and horizontal directions by the frames 8, 9, etc. Form 14. Reference numeral 15 denotes a loading/unloading device, which is movable along a fixed path 16 along the front side of the shelf 6. In other words, the loading/unloading device 15 has a main body formed by a square cylindrical post 17.
A sliding member 19 (which is an example of a lower guided member and may be replaced with a roller or the like) is attached to the surface of the lower end facing the shelf 6 via a bracket 18. This slide body 19 is attached to the main body 7 side of the shelf 6 and is supported and guided by a lower rail 20 along the constant path 16. Said post 1
A mounting member 21 is vertically installed from the lower surface of the main body 7, and the mounting member 21 is linked to one location of an endless rotating body 22 provided on the main body 7 side. It's linked. The lower rail 20 is attached to the main body 7 at a position within the main body 7 below the loading racks 12 and 13,
Further, the traveling drive device 23 is disposed below the loading/unloading device 15 in a dustproof cover 24 that is integrated with the main body 7. In other words, the lower rail 20 and the travel drive device 23 are connected to both load receiving stands 12, 13 and the dustproof cover 2.
4. It is a space surrounded by a horizontal plate etc. provided in the main body 7 at the level of the main body 7 and the loading racks 12 and 13, and is arranged separately from the compartment storage space 14. At this time, slits 25 and 26 are formed in the dustproof cover 24 to allow movement of the bracket 18 and the mounting member 21.

At the upper end of the post 17, a pair of idle rollers (an example of an upper guided body, which can be replaced with a slide body, etc.) 28 are disposed, and are located between these idle rollers 28 and follow a constant path 16. The upper rail 29 along the main body 7
It is attached to the side. A cover in the direction of the constant path 16 is attached to the upper end of the post 17, and this cover 31 covers all of the idle rollers 28,
It is configured to allow a portion of the upper rail 29 except for the upper end to enter through a slit 32 formed on the upper surface side. Also, a cover 31 is placed on the top plate of the post 17.
A communication hole 33 is formed to communicate between the post 17 and the post 17.

The loading/unloading device 15 is supported and guided by both rails 20 and 29 and can run freely on a fixed path 16, and a slit 34 is formed in the vertical direction on one side of the post 17 in the running direction. . Inside the post 17 are an upper wheel body 35 and a lower wheel body 3.
6, a driving wheel body 37 etc. are arranged, and these wheel bodies 3
An endless rotating body 38 is wound between 5, 36, and 37, and the driving wheel body 37 is interlocked with a forward/reverse drive device 39. An elevating body 40 connected to one point of the endless rotating body 38 is guided by a vertical rail 41 disposed within the post 17, and a connecting member 42 from the elevating body 40 projects through the slit 34. An elevating platform 43 is attached to the protruding end of the connecting member 42, and a load holder 44 that can move in and out in the lateral direction is provided on the elevating platform 43, so that a load holding device 44 is provided on the elevating platform 43, and a load holding device 44 is provided on the elevating platform 43. This makes it possible to receive and receive cargo 45. Between the elevating body 40 and the elevating table 43, cover plates 4b are attached on both sides, and these cover plates 46 are inserted into grooves of guides 47 attached to the posts 17 to be located on both sides of the slit 34. fit. A pair of upper guide wheels 48 and a pair of lower guide wheels 49 are disposed inside the post 17, and one end of a belt 50 disposed between these wheels 48 and 49 is connected to the cover plate 46. It is connected to the upper end, and the other end is connected to the lower end of the cover plate 46. 51 indicates a take-up device.

The operation of the above embodiment will be explained below. In the clean room 1, the clean air 4 blown downward through the filter 3 descends, and the descending clean air 4 is sucked below the floor 5.
Its cleanliness is ensured. In such a clean room 1, the loading/unloading device 15 is used to transfer the cargo 46 between the intended partitioned storage space 14 of the shelf 6 and both cargo receiving platforms 12, 13. This can be performed by a combination of the traveling operation on the fixed path 16, the raising and lowering operation of the lifting platform 43, and the moving and retracting operation of the load holder 44. At that time, dust generated when the slide body 19 is supported and guided with respect to the lower rail 20, and the traveling drive device 23
The dust generated by the operation of the loading platform 12, 13
The clean room 1 is kept in a space surrounded by the dustproof cover 24, the main body 7, etc., and is prevented from going out into the clean room 1, and is prevented from moving to the compartment storage space 14 side. Further, dust generated when the idle roller 28 is guided by the upper rail 29 is removed from the cover 31.
This prevents the particles from scattering, and allows them to fall into the post 17 and be removed through the communication hole 33 without moving into the clean room 1. Furthermore, when the elevating table 43 is raised or lowered, the elevating body 40 and the cover plate 46 move together and the belt 50 rotates, so that the slit 34 through which the elevating body 40 passes is
is always sealed. Therefore, dust generated from the lifting guide device and lifting drive device disposed inside the post 17 remains inside the post 17 and can be prevented from leaking into the clean room 1.
Note that the shelf 6 can be installed in the clean room 1 with the lower rail 20 integrated after the lower rail 20 is installed with high accuracy at the manufacturing factory. By attaching the upper rail 29, which does not require additional construction, the entire on-site assembly can be performed.

Effects of the Invention According to the present invention having the above configuration, dust generated from the lower rail and travel drive device, which are likely to generate dust due to wear and tear, is retained in the lower part of the shelf body and moves to the compartment storage space side, where it adheres to the stored items. In addition, the dust-proof cover can prevent the dust from leaking into the clean room, and it can be easily adopted especially for storage in a clean room where semiconductors and the like are handled. In addition, it is possible to achieve precision in the relative positional relationship between the shelf and the lower rail at the manufacturing factory.
Therefore, at the site where assembly is performed, it is only necessary to consider the installation accuracy of the upper rail, and as a result, it is possible to provide cargo storage equipment that allows for easy and accurate on-site assembly.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a partially cutaway side view, FIG. 2 is a partially cutaway rear view seen from the back side of the shelf, and FIG. 3 is a partially cutaway plan view. Fig. 4 is a longitudinal sectional view of the upper guide part, Fig. 5 is a side view of the same,
6 is a plan view of the same, FIG. 7 is a schematic front view of the loading/unloading device, FIG. 8 is a view taken along the line A-A in FIG. 7, and FIG. 9 is a view taken along the line B-B in FIG. 1...Clean room, 6...Shelf, 7...Main body, 10
... Load receiving plate, 14... Compartment storage space, 15... Carrying in/out device, 16... Fixed path, 17... Post, 19... Slide body (lower guided body), 20... Lower rail,
23... Travel drive device, 24... Dustproof cover, 28...
Idle roller (upper guided body), 29... Upper rail, 34... Slit, 39... Forward/reverse drive device, 40
... Elevating body, 43... Elevating platform, 44... Load holder, 45
...Load, 46...Cover plate, 47...Guide, 50...Belt.

Claims (1)

[Claims] 1. A clean room is equipped with a shelf that has a plurality of compartment storage spaces in the vertical direction, and a loading/unloading device that can move freely on a fixed path along the shelf and has a load holder that can be moved up and down as well as moved in and out laterally. , this loading/unloading device has a lower guided body supported and guided by the lower rail, and an upper guided body guided by the upper rail, and both of the rails are integrated on the shelf side, and at least the lower rail and the loading/unloading device are connected to each other. The traveling drive device of the output device is arranged within the shelf body and separated from the divided storage space, and a dustproof cover is provided to prevent dust generated from the lower rail and the traveling drive device from flowing out. A cargo storage facility featuring: