JPH09169408A - Article storage device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the works needed for maintenance of a device as much as possible while preventing decreasing of the working efficiency of the device to the utmost. SOLUTION: A conveying device TR for performing conveyance of articles between respective plural storage parts 1 and article carrying-in and out parts 4 in state where the articles are arranged in parallel vertically and laterally, is constituted of an article holding part 6 for performing loading of articles between the respective storage parts 1, the carrying-in and out parts 4 at loading positions of set articles with a space between them selves, to the respective storage parts 1 and the carrying-in and out parts 4, an article holding part 6 to transfer articles and a guide rail 5 which supports the article holding part 6 so that it can move across the width of the storage shelf and which is hanged and supported on cable-like bodies 30a, 30b to be lifted or lowered at plural places along the longitudinal direction. Then, based on detected information on the lifting and lowering position of the guide rail 5, the position of the article holding part 6 across the width of the storage shelf, and the inclination of the guide rail 5, the article holding part 6 is controlled so that it is positioned at the loading position of set articles.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage rack provided with a plurality of storage sections arranged in a row in the vertical and horizontal directions,
A transport device for transporting the article between each of the plurality of storage portions and the loading / unloading portion for the article is provided, and the transport device is
At a set article transfer position with respect to each of the storage sections and the loading / unloading section, an article holding section that transfers an article between each of the storage sections and the loading / unloading section, and the self, and an article holding section thereof. A guide rail that is movably supported in the widthwise direction of the storage shelf and that is supported by being suspended and supported by a cord at a plurality of longitudinal positions, and a lateral movement that moves the article holding unit along the guide rail. An article storage device provided with a drive section and a conveyance control means for controlling the operation of an elevating and lowering drive section for raising and lowering the guide rail by pulling the cord-shaped body to convey the article. Regarding

[0002]

2. Description of the Related Art Such an article storage apparatus is an apparatus for storing and storing articles in a plurality of storage sections provided on a storage shelf. The sheet is conveyed by the conveying device between the section and the article loading / unloading section. This transfer device is controlled by the transfer control means.
An article holding unit that transfers and holds articles to be conveyed between each of the storage units and the like is moved in the lateral width direction of the storage rack along the guide rails by the lateral drive unit, and the guide rails are moved up and down. By raising and lowering by, the article holding unit is positioned at the set article transfer position with respect to each storage section and the loading / unloading section, and the article is transported between each storage section and the loading / unloading section. The guide rail that supports the article holding unit is suspended and supported at a plurality of positions by the cord-shaped body that is pulled and driven by the elevating and lowering drive unit. This cord is generally elongated by long-term use, and since the elongation is not necessarily equal at each of a plurality of places supporting the guide rail, the guide rail may be inclined due to long-term use. Alternatively, the vertical movement amount of the cord-like body may vary among a plurality of places supporting the guide rail, and the guide rail may tilt.

If the guide rail is tilted in this way,
The transfer control means can position the article transfer position set for one of the storage sections arranged in the horizontal direction, but set the transfer article set position for the other storage sections. This will lead to a situation where it cannot be located. Therefore, conventionally, if the extension of the cord is detected and the guide rail is tilted to such a degree as described above,
The operator had to stop the carrying work and adjust the length of the cord.

[0004]

Therefore, in the above-mentioned conventional structure, the stop of the carrying operation lowers the operation efficiency of the apparatus, and the operator needs a lot of time for the maintenance of the apparatus. . The present invention has been made in view of the above circumstances, and an object thereof is to reduce the work required for maintenance of an apparatus as much as possible while preventing a decrease in the operating efficiency of the apparatus as much as possible. is there.

[0005]

With the configuration according to the above-mentioned claim 1, when the tilt detecting means detects the tilt of the guide rail, the conveyance control means detects the detected information from the ascending / descending position detecting means. When the guide rail is stopped at a certain height based on the above, it is possible to know the deviation in the up-and-down direction from the set article transfer position of the position of the article holding section with respect to each storage section or the loading / unloading section. Therefore, by setting the stop height of the guide rail so as to correct the deviation in the ascending / descending direction from the set article transfer position of the article holder, even if the guide rail is tilted, the article holder is properly set. The transfer device can be positioned at the transfer position, and the work of transferring the article by the transfer device can be continued. Therefore, the work required for the maintenance of the device can be reduced as much as possible while preventing the deterioration of the operation efficiency of the device as much as possible.

Further, the inclination detecting means for detecting the inclination of the guide rail by including the structure described in claim 2 is:
The tilt of the guide rail in the width direction of the storage shelf is detected. That is, since the guide rail guides the article holding section in the width direction of the storage shelf, the guide rail becomes longer in the width direction of the storage shelf. Although there is a large difference in the vertical direction between the position of and the set article transfer position, the conveyance control means moves the vertical drive and the lateral movement based on the inclination of the guide rail in the width direction of the storage rack detected by the inclination detection means. The drive unit can be controlled to properly position the article holding unit at the set article transfer position.

Further, by providing the structure according to the third aspect, the elevating and lowering drive unit for pulling and driving the guide rail collectively winds and pulls the cord-like members for suspending and supporting the guide rail at a plurality of positions. Therefore, when the guide rail is tilted, the guide rail moves up and down while maintaining the tilt. Therefore, it is not always necessary for the inclination detecting means to always detect the inclination of the guide rail. For example, the inclination detecting means can detect the inclination of the guide rail only when the guide rail passes a set position. Becomes Then, the stop position of the guide rail is determined by proportionally distributing the detection information detected by the inclination detection means and the position information in the width direction of the storage rack of the set article transfer position, which is predetermined information. Ask. Therefore, it is possible to simplify the configuration of the inclination detecting means, and by using the predetermined information, it is possible to simplify the calculation processing of the stop position of the guide rail, while properly setting the article holding unit. It can be placed in the loading position. Furthermore, the elevating / lowering drive unit winds a plurality of cords together and pulls them. Therefore, the structure can be simplified as compared with a configuration in which the plurality of cords are individually pulled and driven.

Further, by providing the structure according to the above-mentioned claim 4, an elevating and lowering drive unit for collectively winding and pulling a plurality of cords is provided on one side of the storage shelf in the lateral width direction thereof. Since the plurality of cords are arranged in a biased manner, the lengths of the plurality of cords are different. The longer the cord, the greater the elongation over long-term use, and the more likely the guide rail is inclined. In such a case, it is particularly effective that the conveyance control unit appropriately positions the article holding unit at the set article transfer position based on the detection information of the tilt detection unit and the like.

Further, by providing the structure according to the fifth aspect, the inclination detecting means moves the guide rail up and down from an arbitrary ascending / descending position, and the pair of detecting portions causes both ends of the guide rail in the lateral width direction of the storage rack. The operation amount of the elevation drive unit until the detection of each side portion is obtained from the detection information of the elevation position detection means. When this detection information is obtained, the length of the guide rail in the width direction of the storage rack is known in advance,
The inclination of the guide rail can be obtained by comparing the operation amounts corresponding to both end portions of the guide rail in the lateral direction of the storage rack. That is, a simple configuration is provided in which a pair of detection units that detect whether or not each of both end portions of the guide rail in the lateral width direction of the storage rack is located at one specific height in the vertical direction of the guide rail is provided. The inclination of the guide rail can be detected.

Further, by providing the structure according to the sixth aspect, normally, even if the guide rail is tilted, the article holding section is appropriately set by the conveyance control means based on the detection information of the tilt detecting means. The elevator drive unit and the lateral drive unit are controlled so that they are located at the transfer position.However, when the inclination of the guide rail detected by the inclination detection means exceeds the set value, a cord adjustment request signal is output from the signal output means. The operator's adjustment work. In other words, if the guide rail is not tilted so much, the work of carrying the article is continued, but if the guide rail is tilted too much, it may hinder the carrying of the article. The cords are used to adjust the cords to ensure stable operation of the device.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an article storage device according to the present invention will be described below with reference to the drawings. In FIG. 1, a container C as an example of an article can be stored in any one of the storage units 1 of the storage shelves 2A and 2B provided as a pair at predetermined intervals in front and rear, and There is shown an article storage device according to the present invention in which containers C stored in predetermined storage shelves 2A and 2B can be taken out. In the container C, for example, small parts and the like are loaded by type.

The storage section 1 is arranged in each of a pair of storage shelves 2A and 2B in a state where they are arranged vertically and horizontally.
A plurality is provided. A loading / unloading section 4 for the upper and lower two stages of the container C is provided by utilizing the storage section 1 on the lower side of the storage shelf 2A located on the front side. Also, a pair of storage shelves 2A, 2B
The main part of the transfer device TR that transfers the container C between the respective storage parts 1 and the loading / unloading part 4 is provided in the front-rear intermediate part. Each of the upper and lower two-stage loading / unloading section 4 is capable of both loading the container C from the outside and unloading the container C from the storage shelves 2A and 2B to the outside. Carrying out or carrying in articles is carried out, for example, by carrying out the carrying-in of C only and carrying out the carrying-out of the container C on the lower side and configuring the article carrying-in section on the upper side and the article carrying-out section on the lower side together as the carrying-in / carrying-out section 4. You can set whether to do it. The main part of the transfer device TR provided at the front and rear intermediate portions of the pair of storage shelves 2A and 2B is an article holding unit 6 that holds and conveys the container C, and the article holding unit 6 is substantially lateral to the storage shelves 2A and 2B. The guide rail 5 includes a guide rail 5 that guides the entire width in the direction, and a lateral movement drive unit HD that moves the article holding unit 6 along the guide rail 5. The guide rail 5 is a lifting unit that forms a part of the transport device TR. The drive unit UD can be moved up and down over almost the entire vertical height of the storage shelves 2A and 2B. The lateral drive unit HD and the elevation drive unit UD are controlled by the controller CO that functions as the transport control unit TC shown in FIG.

The pair of storage shelves 2A and 2B support a support column 8, a plurality of horizontal frames 9 which are vertically connected to each other at predetermined intervals over the support column 8, and a bottom portion on both left and right ends of the container C. It is composed of a large number of locking members 10 which are erected and connected along the front-rear direction at predetermined intervals, and a horizontal rod 11 which connects the upper ends of the columns 8. The locking member 10 has a substantially L-shaped cross section so as to prevent the lateral movement of the container C. A container C is placed in the carry-in / out section 4.
A roller conveyer RC for carrying in and out of the storage shelves 2A, 2B is provided in series, and although not shown in the figure, the roller conveyer RC conveys the container C conveyed on the roller conveyer RC at the center in the transverse direction. There is a centering device for positioning the.

Next, the elevating / lowering drive unit UD for vertically moving the guide rail 5 will be described. As shown in FIG. 2, the guide rail 5 is suspended and supported by the connecting wires 30a and 30b which are cord-shaped bodies at both ends in the lateral direction. One of the connecting wires 30a is wound around guide drums 29a and 29b rotatable about a horizontal axis and then connected to a take-up drum 29c installed at the lower end of the storage rack 2A.
The other connecting wire 30b is wound around the guide drum 29d rotatable about the horizontal axis center, the guide drum 29e rotatable about the vertical axis center, and the guide drum 29b, and then, similarly to the connecting wire 30a. It is connected to the winding drum 29c. The winding drum 29c is rotationally driven by the electric motor M1, and the connecting wire 30 is driven by the electric motor M1.
The guide rail 5 is moved up and down by pulling and driving a and 30b.
Although not shown in FIG. 2, the electric motor M1 is provided with a rotary encoder 31 interlocked with its rotation shaft, and the detection information of the rotary encoder 31 indicating the operation amount of the lifting drive unit UD is shown in FIG. As shown in the figure, the rotation amount of the rotary encoder 31 from the ascent / descent origin is input to the controller CO and is recognized as the ascending / descending position of the guide rail 5. Therefore, the rotary encoder 31 and the controller CO function as the ascending / descending position detecting means VP for detecting the ascending / descending position of the guide rail 5. As shown in FIG. 6, the electric motor M1 is driven by an inverter circuit 55 for up-and-down driving, and the inverter circuit 55 is controlled by the controller CO. As shown in FIG. 2, the guide rail 5 has guide grooves 40a of a guided portion 40 attached to the left and right ends of the guide rail 5 in a pair, respectively, on the guide rail 5 side of the guide plate support frame 41 shown in FIG. The posture is regulated by being engaged and guided by the guide plate 41a attached in a protruding state.

Next, a lateral movement operation structure of the article holding unit 6 and the like will be described. As shown in FIGS. 3 to 5, the article holding unit 6 mainly covers the front and rear both sides and the upper side of the guide rail 5 having a substantially H-shaped cross section, and the frame 48.
Four traveling wheels 49 mounted on the upper part of the frame, six guide wheels 50 on the side of the frame 48 rotatably mounted on the side of the frame 48 around the longitudinal axis, and six guide wheels 50 on the side of the frame 48. It is composed of two guide wheels 51 rotatably mounted around a horizontal axis and contacting the guide rail 5 from below, and a fork mechanism 52 mounted on the frame 48.

The lateral drive unit HD for moving the article holding unit 6 along the guide rail 5 is wound around pulleys 53, 53 rotatably supported around the front and rear axial centers at both ends of the guide rail 5, respectively. The rotated drive belt 54 and the electric motor M2 that rotationally drives one pulley 51 are configured as main parts, and both ends of the drive belt 54 are connected to the frame 48 of the article holding unit 6 so that the electric motor M2 By the rotational drive, the drive belt 54 is moved in the longitudinal direction,
The article holding unit 6 is horizontally moved. The drive belt 54 is
It is arranged so as to be accommodated in a lateral space formed by the substantially H-shaped guide rails 5 to save space.

As shown in FIG. 6, the electric motor M2 is driven by a traverse driving inverter circuit 56, and the inverter circuit 56 is controlled by a controller CO.
In order to detect the amount of movement of the article holding unit 6 in the lateral direction of the storage rack due to the drive of the electric motor M2, as shown in FIG. 5, the frame 48 of the article holding unit 6 is rotated in contact with the guide rail 5. Rotating roller 60a that moves and its rotating roller 6
A rotary encoder 60 that detects the rotation amount of 0a is attached. The output of the rotary encoder 60 is
As shown in FIG. 6, the data is input to the controller CO, and the controller CO uses the amount of rotation of the rotary encoder 60 from the position of an origin sensor (not shown) to control the article holder 6.
Specify the position of the storage shelf in the horizontal direction. Therefore, the rotary roller 60a, the rotary encoder 60, and the controller C
O functions as a lateral movement position detection unit HP that detects the position of the article holding unit 6 in the lateral width direction of the storage shelf.

The fork mechanism 52 includes a pair of storage shelves 2A,
It is possible to freely move in and out of each storage unit 1 of 2B, and each storage unit 1
The container C is transferred between the respective loading / unloading section 4 and the article holding section 6. Two bar-shaped contact sensors 57 are provided on each of the left and right sides of the fork mechanism 52. When the container C is mounted on the article holding unit 6 by the fork mechanism 52, the container C is positioned at the center position of the container C in the lateral direction (corresponding to the lateral direction of the storage shelves 2A and 2B) and the lateral direction of the fork mechanism 52. When it is located at the standard mounting position where the center position is substantially the same, it does not contact any of the four contact sensors 57, but is displaced from the standard mounting position in either the left or right direction and contacts this contact sensor 57. Thus, the collapse of the load of the container C can be detected.

Next, an operation of loading and unloading the container C into and from the article storage device under the control of the controller CO will be described. When the container C is loaded into the loading / unloading unit 4 on the upper side or the lower side, the electric motors M1 and M2 are controlled and driven, and the guide rail 5 and the article holding unit 6 are provided to the fork mechanism 52 provided in the article holding unit 6. The center position of the storage rack in the width direction of the storage rack substantially coincides with the center position of the loading / unloading unit 4 in the storage rack width direction, and the upper surface of the fork mechanism 52 is positioned slightly below the lower surface of the container C of the loading / unloading unit 4. Move to position. This position is the set article transfer position when the container C of the carry-in / out section 4 is transferred to the article holding section 6, and the same applies when the container C of the storage section 1 is transferred to the article holding section 6.

The loading / unloading section 4 of the guide rail 5 and each storage section 1
The ascending / descending height is set in association with the detection value of the rotary encoder 31 provided in the electric motor M1, and the loading / unloading section 4 of the article holding section 6 and the storage shelves 2A corresponding to the storage sections 1 are provided. The rotary encoder 6 for detecting the rotation amount of the rotating roller 60a shown in FIG.
It is set in association with the detected value of 0. Next, the fork mechanism 52 is made to project to a position on the lower side of the container C of the carry-in / out section 4, and then the guide rail 5 is driven by the electric motor M1.
Is raised so that the container C is placed on the upper surface of the fork mechanism 52. When the fork mechanism 52 with the container C placed thereon is retracted toward the article holding unit 6 side, the container C is placed on the article holding unit 6. The same operation as above is performed when the container C is transferred from the storage unit 1 to the article holding unit 6.

With the container C mounted on the fork mechanism 52, the guide rail 5 and the article holding section 6 are moved to the empty storage section 1. At this time, the center position of the fork mechanism 52 provided in the article holding unit 6 in the width direction of the storage shelf is substantially coincident with the center position of the storage unit 1 in the width direction of the storage shelf, and the upper surface of the fork mechanism 52 is stored. It is set to be slightly higher than the upper surface of the locking member 10 of the portion 1. At this position, the container C of the article holding unit 6 is stored in the storage unit 6
This is also the case when the container C of the article holding unit 6 is transferred to the carry-in / out unit 4 at the set product transfer position when transferring to and from. In this state, the fork mechanism 52 is projected toward the storage portion 1 side to position the container C above the locking member 10,
Further, after lowering the guide rail 5 until the container C is placed on the locking member 10, the fork mechanism 5
2 is retired to the article holding unit 6 side.

When the containers C stored in the storage shelves 2A and 2B are carried out from the carry-in / carry-out section 4, an operation substantially reverse to the above-mentioned carrying-in operation is performed. First, the guide rail 5 and the article storage section 6 are moved to the storage section 1 that stores the container C that has been instructed to be carried out, and the container C is mounted on the article holding section 6 in the same manner as described above. Then, the loaded container C is conveyed to the carry-in / carry-out unit 4 and carried out from the carry-in / carry-out unit 4 to the outside by the roller conveyor RC.

Next, when the article holding section 6 is driven to be conveyed,
An operation for positioning the article holding unit 6 at the set article transfer position with respect to the storage unit 1 and the loading / unloading unit 4 even when the guide rail 5 is inclined in the width direction of the storage rack will be described. In order to properly position the article holding unit 6 at the set article transfer position, a tilt detection means ID for detecting the tilt of the guide rail 5 is provided, and the guide rail 5 of the guide rail 5 is detected based on the detection information of the tilt detection means ID. The stop position is controlled. In this inclination detection means ID, as schematically shown in FIG. 7, whether or not both end portions of the guide rail 5 in the width direction of the storage rack are located at one specific height in the vertical direction of the guide rail 5. A pair of detection units 61 and 62 for detecting whether or not is provided. The pair of detection units 61 and 62 include a photo interrupter type optical sensor 61a and 62a and a storage rack 2A.
And light-shielding plates 61b and 62b, which are attached to the lower ends of the columns 8 at both ends in the lateral width direction and are to be detected by the optical sensors 61a and 62a, respectively. The detection information of the optical sensors 61a and 62a is input to the controller CO, and the controller CO performs a tilt detection calculation process. Therefore, the controller CO also functions as a part of the inclination detection means ID. The mounting heights of the pair of light shielding plates 61b and 62b are the same,
The heights do not have to be the same as long as the height difference between the two is known.

The process in which the tilt detecting means ID detects the tilt of the guide rail 5 will be described. The wire 30b that suspends and supports the end portion on the side far from the electric motor M1 has a longer wire length than the wire 30a that supports the end portion on the near side, and generally, the extension of the wire 30b is greater than the extension of the wire 30a. 7 is large, the guide rail 5 will be described on the assumption that the end of the guide rail 5 on the side far from the electric motor M1 is inclined downward (downward in FIG. 7). When the guide rail 5 descends from the upper position, the optical sensor 61a provided at the end far from the electric motor M1 first detects the light shielding plate 61b, and then,
An optical sensor 62a provided at the end on the near side detects the light shielding plate 62b.

The detection information of the optical sensors 61a and 62a is inputted to the controller CO. In the controller CO, the optical sensor 61a detects the light shielding plate 61b and then the optical sensor 62a detects the light shielding plate 62b. From the detected values of the rotary encoder 31 up to the guide rail 5
Difference in height between both ends (indicated by “Ha” in FIG. 7)
Is found. Further, in FIG. 7, the width between the guide plate support frames 41 indicated by "Wc", and the respective storage units in the width direction of the storage rack with reference to the guide plate support frame 41 on the side closer to the electric motor M1 indicated by "Wb". 1 and the information on the center positions of the carry-in / out section 4 are known in advance, the “Wb” of each storage section 1 or the like is determined by the electric motor M from the relationship of Hb = (Wb / Wc) × Ha.
You can see how far it is located from the end on the side closer to 1. In other words, "Wc" and "Ha"
Therefore, the inclination of the guide rail 5 is detected, and the deviation from the reference height corresponding to each of the storage units 1 and the like is obtained by proportional distribution from the inclination.

When the articles are transferred by the fork mechanism 52, each storage section 1 and the loading / unloading section 4 in the widthwise direction of the storage rack.
Since the center position of the fork mechanism 52 of the article holding unit 6 in the width direction of the storage rack is located at the center position of the storage unit 1, the center position of each storage unit 1 and the loading / unloading unit 4 in the width direction of the storage rack is in the width direction of the storage rack. This is the set item transfer position. Therefore, with reference to the end portion on the side closer to the electric motor M1, the guide rail 5
When setting the elevating position of the guide rail 5, when the guide rail 5 is stopped at a position higher than the preset position by the above-mentioned distance “Hb” obtained for each of the storage units 1 and the like, the article holding unit 6 Will be properly positioned at the set article transfer position. The preset position may be the one initially set by learning when the operation of the article storage device is started.

In the above description, the case where the inclination detection means ID detects the inclination when the guide rail 5 is lowered has been described as an example, but the same is true when the inclination is detected when the guide rail 5 is raised. You can change the settings arbitrarily. Furthermore, the same applies when the end on the far side is used as a reference instead of the end on the side closer to the electric motor M1.
The timing for executing the above-mentioned adjustment of the stop position of the guide rail 5 based on the detection information of the inclination detection means ID is as follows.
"When descending or ascending, optical sensors 61a, 62a
Can be changed in various ways, such as "every time the light shielding plates 61b and 62b are detected", "every set period" or "when the above Ha exceeds a set value". Further, the controller C
When the inclination of the guide rail 5 detected by the inclination detecting means ID is equal to or more than the set value and the inclination of the guide rail 5 becomes large, O does not adjust the stop position for absorbing the inclination of the guide rail 5 as described above, The alarm lamp 63, which functions as a signal output unit that outputs a cord adjustment request signal, is turned on to output a signal requesting the operator to adjust the wires 30a and 30b.

[Other Embodiments] Other embodiments will be listed below. In the above-described embodiment, the tilt detecting means ID is composed of the optical sensors 61a and 62a, the light shielding plates 61b and 62b, and the controller CO. However, for example, a tilt sensor using a gyro is attached to the guide rail 5. It may be configured. In the above embodiment, the winding drum 29c that is rotationally driven by the electric motor M1 pulls and drives the wires 30a and 30b that suspend and support the guide rail 5, but each of the wires 30a and 30b is driven. It may be configured to be driven by different electric motors. In the above embodiment, the wire 30a,
Although the guide rail 5 is suspended and supported by 30b, the configuration of the cord-like body can be variously changed, for example, the guide rail 5 is suspended and supported by a belt. In the above embodiment, the guide rail 5 is suspended and supported by the two wires 30a and 30b, but the guide rail 5 may be suspended and supported by three or more wires.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the structure shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of an article storage device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a support structure of the guide rail according to the embodiment of the present invention.

FIG. 3 is a front view of the guide rail according to the embodiment of the present invention.

FIG. 4 is a plan view of the guide rail according to the embodiment of the present invention.

FIG. 5 is a side view of the article holding unit according to the embodiment of the present invention.

FIG. 6 is a block configuration diagram according to the embodiment of the present invention;

FIG. 7 is an operation explanatory diagram according to the embodiment of the present invention.

[Explanation of symbols]

 30a, 30b Cord 1 Storage section 2A, 2B Storage rack 4 Carrying in / out section TR Transfer device 6 Article holding section 5 Guide rail HD Traverse drive unit UD Elevation drive unit TC Conveyance control means VP Elevation position detection means HP Lateral movement position detection Means ID inclination detection means 61, 62 detection unit 60 signal output means

Claims (6)

[Claims] 1. Storage shelves (2A), (2B) provided with a plurality of storages (1) in a state of being aligned in the vertical and horizontal directions.
And each of the plurality of storage sections (1) and the article loading / unloading section (4)
And a transport device (TR) for transporting an article between the storage device (TR) and the storage device (TR) at the set product transfer position with respect to each of the storage units (1) and the loading / unloading unit (4). , Each of the storage sections (1) and the carry-in / out section (4), and an article holding section (6) for transferring articles between itself, and the article holding section (6) in the storage rack lateral direction. Movably supported in the longitudinal direction at a plurality of locations (30
a), a guide rail (5) suspended and supported by (30b) and moved up and down, a lateral movement drive unit (HD) for moving the article holding unit (6) along the guide rail (5), and , The cord (3
0a) and (30b) are pulled, and a transfer control unit (TC) that controls the operation of a lifting drive unit (UD) that lifts and lowers the guide rail (5) to transfer the article is provided. A configured article storage device, wherein the transport control means (TC) includes an ascending / descending position detecting means (VP) for detecting an ascending / descending position of the guide rail (5), and a storage rack lateral width of the article holding unit (6). Lateral movement position detection means (HP) for detecting the position in the direction, and
Based on the detection information of each inclination detecting means (ID) for detecting the inclination of the guide rail (5), the lateral movement drive is performed so as to position the article holding unit (6) at the set article transfer position. Storage unit configured to control the operation of the unit (HD) and the lifting drive unit (UD). 2. The article storage device according to claim 1, wherein the tilt detecting means (ID) is configured to detect a tilt of the guide rail (5) in a width direction of the storage shelf. 3. The elevating and lowering drive unit (UD) collectively winds a plurality of the cord-like bodies (30a), (30b) for suspending and supporting a plurality of longitudinal portions of the guide rail (5). , The conveyance control means (TC) is configured to be driven by pulling, and the tilt detection means (I)
The stop position of the guide rail (5) is determined based on the detection information of D) and the position information of the set article transfer position in the width direction of the storage shelf. Article storage device. 4. The plurality of cords (30a), (30)
(b) is wound together and is driven by a lifting drive unit (U
4. The article storage device according to claim 3, wherein D) is arranged on one side of the storage shelves (2A), (2B) in the lateral width direction thereof. 5. The ascending / descending position detecting means (VP) winds the plurality of cords (30a), (30b) and detects the operation amount of the ascending / descending drive unit (UD) for pulling drive. In the tilt detecting means (ID), both end portions of the guide rail (5) in the width direction of the storage rack are positioned at one specific height of the guide rail (5) in the vertical direction. A pair of detection units (6
1) and (62) are provided, and for each of the detection units (61) and (62),
It is configured to obtain an operation amount detected by the ascending / descending position detection means (VP) when it is detected that the vehicle is located at the specific height, and compare the obtained operation amounts to obtain an inclination. Item storage device according to item 3 or 4. 6. The signal output means (60) is provided for outputting a cord adjustment request signal when the inclination detected by the inclination detection means (ID) is equal to or greater than a set value. The article storage device according to 2, 3, 4 or 5.