JP2003246419A - Shelf facility - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide shelf facility capable of avoiding an increase in costs while ensuring the safety of a worker. <P>SOLUTION: On each moving shelf 1, an approach detector 31 fro detecting approach of a moving shelf opposite to the moving shelf 1 and preventing approaching movement between the moving shelf 1 and the opposite moving shelf is provided. A socket 33 for actuating the approach detector 31 is provided on each moving shelf 1. The approach detector 31 is actuated by the socket 33 when entering work passage formed between the moving shelves 1, thereby preventing approaching movement between the moving shelf 1 provided with the approach detector 31 and the opposite moving shelf. In this structure, by preventing approach movement between the moving shelved forming the work passage, a fear that the work passage is closed and the safety of the worker is threatened can be avoided, and a special safety device in conventional facility is not required, thereby suppressing an increase in a cost. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shelf facility including a plurality of movable shelves.

[0002]

2. Description of the Related Art Conventionally, the following structure has been provided as this kind of shelf equipment. A certain traveling route (track or the like) is set in the space in the warehouse or office, and a plurality of reciprocating shelves (moving shelves) are arranged on this certain traveling route leaving the space for the working passage, When a work passage is required between them, a button for designating the required work passage is provided, for example, on the movable shelf facing the work passage, and between the designated movable shelves according to the operation of this button. One or a plurality of movable shelves are configured to be self-propelled along the fixed traveling path until the width of the work passage is reached. A worker or a cargo-handling vehicle (for example, a forklift) enters a work passage opened between the moving shelves, and articles are handled on the moving shelf facing the work passage.

If the movable rack is moved and the work passage is closed while the work passage is invaded by the worker, the safety of the worker may be threatened. Therefore, various safety measures are taken. Is going. For example, prepare a safety rope that can cover the work aisle between each mobile shelf, remove the safety rope when entering the work and enter the work aisle, and attach the safety rope between the work aisles when the work is completed. ,
In addition, a device that can confirm that the safety rope is installed between all work aisles is provided, and the mobile shelf can be moved by confirming that the safety rope is installed between all work aisles. ing.

[0004]

However, according to the above-mentioned conventional configuration, a dedicated safety device for disposing a safety rope is provided exclusively for safety measures so that it can be confirmed that a safety rope is installed between all work passages. Therefore, there is a problem that the cost is increased.

[0005] Therefore, the present invention is intended to provide a shelf facility which can avoid the cost increase while ensuring the safety of the operator.

[0006]

In order to achieve the above-mentioned object, the invention according to claim 1 of the present invention is provided with a plurality of movable shelves capable of reciprocating on a traveling route via a traveling supporting device. A rack facility for handling articles to a moving shelf facing the working passage by using the working passage opened between the moving shelves, wherein Proximity detection means is provided for detecting the approach of the moving shelves facing each other and preventing the moving shelves and the facing moving shelves from approaching each other, and each of the moving shelves is caused to operate the approach detecting means. When the body is provided, and when entering the work passage, the approach detecting means of the moving shelf forming the work passage is operated by the object to be detected, and the moving shelf facing the moving shelf provided with the approach detecting means. To prevent each other from approaching each other It is an butterfly.

According to the above construction, when the worker enters the working passage formed between the movable shelves, the worker operates the approach detecting means by the object to be detected. Due to the operation of the approach detecting means, the moving shelves forming the work passage are prevented from approaching each other, thereby avoiding the possibility that the work passage is closed and the safety of the worker is threatened. In this way, the approach detecting means is a means for preventing the movement of the moving shelves from each other when they come close to each other, and also a means for avoiding the fear that the safety of the worker is threatened. The cost increase can be suppressed as compared with the case where the device is installed.

The invention according to claim 2 is the invention according to claim 1, further comprising: first locking means for locking the object to be approached by the approach detecting means, The detected object is brought closer to the approach detecting means by the first locking means and locked, and the approach detecting means is operated, whereby the moving shelf provided with the approach detecting means and the opposite moving shelf are mutually opposed. It is characterized by preventing the approaching movement.

According to the above construction, when the worker enters the work passage formed between the movable shelves, the first object to be detected is brought close to the object to be detected by the first object to detect the object. Operate the means. As a result, the moving shelves forming the work passage are prevented from approaching each other.

The invention according to claim 3 is the invention according to claim 2, wherein the first locking means is provided on a surface of the movable shelf which faces the working passage. It is a feature.

According to the above construction, when the object to be detected is locked by the first locking means provided on the surface of the movable rack facing the working passage, the approach detecting means is operated. The first locking means is arranged near the approach detecting means.

The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the object to be detected is provided at one end of the cord-shaped body. The other end is fixed near the approach detecting means of the movable rack.

According to the above structure, the other end of the cord is fixed near the approach detecting means of the movable rack, and the target is attached to one end of the cord, so that the target is lost. The fear of doing so is avoided.

The invention according to claim 5 is the invention according to claim 4, wherein the second locking means for locking the object to be detected is provided at the tip of the cord-shaped body. It is characterized in that it is provided on a moving shelf.

According to the above construction, when the proximity detecting means is not operated by the detected object, the detected object is locked to the second locking means of the movable rack which is opposed to the movable rack provided with the proximity detecting means. . As a result, a cord is stretched between the movable rack provided with the approach detection means and the movable rack opposite to the movable rack, and an operator is prevented from entering between the movable racks.

The invention according to claim 6 is the above-mentioned claim 1.
The invention according to any one of claims 5 to 5, wherein an operating means for designating a working passage is provided for each of the working passages, and when a plurality of the operating means are operated substantially at the same time, all the movable shelves are moved. It is characterized by stopping the movement.

According to the above construction, when a plurality of operating means are operated almost at the same time, the movement of all the movable shelves is stopped, and a plurality of workers try to form the working passages almost at the same time. It is avoided that the movement is unexpected for the worker.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of shelf equipment according to an embodiment of the present invention, and FIG. 2 is a plan view of the shelf equipment.

In FIGS. 1 and 2, reference numeral 1 denotes a traveling path i via a traveling support device (described later),
For example, it is a movable shelf which is guided by guide rails 3 arranged on a concrete floor surface 2 and can freely reciprocate on the floor surface 2. A plurality of movable shelves 1 (three shelves in the figure) are arranged on the floor surface 2. It is set up. Fixed racks 5 are provided on both sides of a direction (hereinafter, referred to as a front-rear direction) A of a traveling path i of the movable racks 1 group so as to secure a space for a work passage S.

The movable rack 1 and the fixed rack 5 are respectively provided with a plurality of article storage units 13 in the vertical direction (hereinafter, referred to as the left-right direction) B by the columns 11 and the shelves 12 and the traveling path i. Articles of the movable shelf 1 or the fixed shelf 5 that are formed and that are opened between the movable shelves 1 or between the movable shelf 1 and the front and rear fixed shelves 5 are used to face the working passage S. Articles are handled in the storage unit 13.

Now, the plurality of movable shelves 1 are moved in the front-back direction A
In order from the rear to the front, No. 1 mobile rack 1, No. 1 2 mobile rack 1, No. No. 3 movable rack 1, and fixed rack 5 and No. 3 on the rear side. The work passage S opened between the movable rack 1 and the moving rack 1 is S1, No. 1 and No. 2 mobile shelves 1
The work passage S opened between the two is S2, No. 2 and No.
The work passage S opened between the three movable shelves 1 is S3, N
o. The work passage S opened between the movable rack 1 of No. 3 and the fixed rack 5 at the front is referred to as S4.

A traveling section (lower frame section) 1 that supports the plurality of article storage sections 13 and travels on each of the movable shelves 1.
5, the movable shelf 1 and the fixed shelf 5 respectively include an outer plate body 16 that covers the front of the article storage unit 13 in the left-right direction and a ceiling plate body 17 that covers the ceilings of the plurality of article storage units 13. Is provided.

As shown in FIGS. 3 and 4, the traveling section 15 includes a plurality of (four in the figure) the lowermost shelf 12 and the shelf 12.
The lower frame body 18, a pair of front and rear guide rollers 19 supported by the lower frame body 18 arranged in the rightmost direction so as to freely rotate and guided by the guide rails 3, and supported by the respective lower frame bodies 18. It is composed of a traveling support device. The above four lower frames 1
8 is arranged in the left-right direction B with the length direction thereof as the front-back direction A. The lowermost shelf 12 is connected and fixed to the lower frame 18 by connecting members 14 provided at both ends of the lower frame 18 in the length direction.

A traveling wheel 20 as the traveling support device is
It is provided at four locations in the left-right direction B (plural locations) and at two locations in the front-rear direction A (plural locations) along the travel route i. These traveling wheels 20 are composed of an inner ring body made of metal and an outer ring body made of hard urethane rubber, and are rollable on the floor surface 2 via the outer ring body. Further, the three (at least one) traveling wheels on one end side in the front-rear direction A are provided directly on the lower frame body 18 via the interlocking shaft 21 on the wheel shafts of the traveling wheels positioned in the middle thereof. By connecting the driving means 23 in an interlocking manner,
It is configured on a drive type traveling wheel 20A. The traveling drive means 23 is composed of an induction electric motor 24 and a speed reducer 25 linked to the motor shaft.

Further, as shown in FIG. 5, each outer plate body 16 of the movable shelf 1 is provided with the outer plate body 16 on a surface (hereinafter referred to as a side surface) facing the working passage S. It is composed of a reflection type photoelectric switch for detecting the approach of the moving shelf 1 or the fixed shelf 5 facing the moving shelf 1 and the approaching movement of the moving shelf 1 or the fixed shelf 5 facing the moving shelf 1 to each other. An approach detector (an example of approach detection means) 31 is provided. This approach detector 31 is Mobile shelf 1
Are provided at two positions in the front-back direction A, and other No. A few
The movable rack 1 is provided at one front position.

On the side surface of the outer plate body 16 provided with the approach detector 31 (the surface facing the working passage S of the movable shelf 1), the first hook (socket holder) is provided in the vicinity of above the approach detector 31. A socket (an example of an object to be detected) 33 that operates the proximity detector 31 by being provided with a first locking means) 32 and hooked on the first hook 32 is a chain (an example of a cord). It is provided at one end of 34. The socket 33 includes a reflection plate 35 that reflects the light projected from the proximity detector 31 (photoelectric switch) and the reflection plate 3
The reflection plate 3 is formed from a handle 36 that holds the reflection plate 3.
A hole 35a for engaging with the first hook 32 is formed in the hole 5. The other end of the chain 34 is fixed to the front surface of the outer plate body 16 near the approach detector 31. In addition, the movable rack 1 and the fixed rack 5 facing the movable rack 1 provided with the approach detector 31.
A second hook (socket receiver; an example of a second locking means) 37 is provided on the front surface of the outer plate body 16 (on the side of the proximity detector 31) so that the socket 33 can be hung, that is, the movable rack. A chain 34 can be stretched between one or between the movable rack 1 and the fixed rack 5.

Further, on the front surface of each outer plate body 16, an operation panel 42 provided with operation buttons (an example of operation means) 41 for selecting and operating the work passage S for each work passage S is provided. Has been done. Now, the work paths S1, S2, S3
The operation button 41 corresponding to S4 is replaced with the S1 operation button 4
1, S2 operation button 41, S3 operation button 41, S4 operation button 41. The S1 operation button 41 and the S2 operation button 41 are No. The S3 operation button 41 is provided at the end position in the front-rear direction A of the movable rack 1 of No. 2 mobile shelves 1
Is provided at the front end position of the
o. 3 is provided at the front end position of the movable rack 1.

Inside the operation panel 42, a controller 43 (FIG. 6) composed of a microcomputer and an inverter (an example of drive control means) 44 (FIG. 6) for driving the motor 24 of the traveling drive means 23 are provided.

Further, as shown in FIGS. 1 and 2, in order to supply power to the inverter 44 and the controller 43 and exchange signals between the controller 43, expansion and contraction between the fixed shelf 5 and the movable shelf 1 and between the movable shelf 1 is performed. Flexible horizontal cable arm 4
5 are provided.

Further, as shown in FIG. 1, a breaker case 46 in which a breaker 45 (FIG. 6) for turning on and off the power of the shelf equipment is housed is provided on the outer plate member 16 of the fixed shelf 5 at the rear. .

A circuit configuration diagram of the above-mentioned shelf equipment is shown in FIG. As shown in FIG. 6, through the breaker 45 from the fixed shelf 5,
Driving power is supplied to the inverter 44 of each mobile rack 1, control power is supplied to the controller 43 of each mobile rack 1, and the controller 43 of each mobile rack 1 operates with the proximity detector 31 of each mobile rack 1. The button 41 is connected, and the controllers 43 of the mobile shelves 1 are also connected. In addition,
No. The front and rear approach detectors 31, the S1 operation button 41, and the S2 operation button 41 are included in the controller 43 of the mobile shelf 1 of No. 1.
Are connected. In addition, the controller 43 drives the inverter 4
4 outputs a control signal (forward signal or reverse signal), and the inverter 44 drives the motor 24 in the forward and reverse directions in response to the control signal, so that the movable rack 1 travels.

The operation of the controller 43 will be described with reference to the control block diagram of FIG. When the operation buttons 41 other than the S1 operation button 41 are operated, this operation button 41
In order to form the worker's passage S in front of the movable rack 1 operated by, the movable rack 1 operated by the operation button 41 is operated.
It is necessary to move all the moving shelves 1 on the rear side of the moving shelf 1 backward and to move all the moving shelves 1 on the front side of the moving shelf 1 on which the operation button 41 is operated. Also S
When the first operation button 41 is operated, No. 1 operation is performed. Mobile shelf 1
In order to form the working passage S1 at the rear of, all the moving shelves 1 need to be advanced. Furthermore, when at least two operation buttons 41 are simultaneously operated, it is necessary to determine that the operation is an illegal operation and lock (stop) the movement of the movable rack 1.

Therefore, S2 excluding the S1 operation button 41
When the operation command of the S3 and S4 operation buttons 41 is input, while the operation command is being input, an in-operation signal of the operation button 41 is output to the controller 43 of the other mobile rack 1 and all the rear mobile racks. 1 to output the backward movement command to the controller 43, and also outputs the forward movement instruction to the controllers 43 of all the front-side movable shelves 1. Also, S1 operation button 4
When the operation command 1 is input, while the operation command is being input, the in-operation signal of the operation button 41 is output to the controller 43 of the movable rack 1 on the front side, and the forward command is output.

Further, the operation command of the operation button 41 of the movable shelf 1 provided with the controller 43 and the other controller 4 are provided.
A simultaneous operation detection unit 50 is provided for judging the in-operation signal from 3 to judge whether or not the simultaneous operation is performed. The simultaneous operation detection unit 50 holds an in-operation signal (operation signal command) of the operation button 41 of the movable rack 1 provided with the controller 43 and an in-operation signal from another controller 43 for a predetermined time, and further two A combination of operating signals of the operation button 41 is formed, and each combination is held for a predetermined time.
The logical product (AND) of the operating signals of the one operating button 41 is obtained, and the logical sum (OR) of the outputs of these logical products is taken and output. With this configuration, at least two of the operating buttons 41 are operated almost simultaneously. Has been detected.

When an operation command of the operation button 41 is input or a reverse command is input from the controller 43 of the front moving rack 1, a reverse stop command (described later) is input from the controller 43 of the moving rack 1 adjacent to the rear. Check whether or not the output of the simultaneous operation detection unit 50 is ON (ON when it is determined that at least two operation buttons 41 are simultaneously operated), and no command is input, Moreover, when the output of the simultaneous operation detecting unit 50 is not on, the backward command is output to the inverter 44.
As a result, the motor 24 is moved backward by the inverter 44.
Is driven and the movable rack 1 moves backward. When a backward movement stop command is input from the controller 43 of the movable rack 1 adjacent to the rear side, the backward movement command to the inverter 44 is turned off and the movable rack 1 is stopped. Further, even if the operation command of the operation button 41 is input or the reverse command is input from the controller 43 of the front moving rack 1, when the reverse stop command is input,
Alternatively, when the output of the simultaneous operation detection unit 50 is on, the backward command is not output to the inverter 44, and the movable rack 1 remains stopped. Further, the reverse command to the inverter 44 is formed only while the operation command of the operation button 41 is being input or the reverse command is being input from the controller 43 of the front movable rack 1. The operation command of the operation button 41 and the front movable rack are formed. When the reverse command from the controller 43 of No. 1 is turned off, the reverse command to the inverter 44 is turned off and the movable rack 1 is stopped.

When a forward command is input from the controller 43 of the rear movable rack 1, it is confirmed whether or not the approach detector 31 is operating and whether the output of the simultaneous operation detecting section 50 is ON, and the approach detection is performed. When the device 31 is not operating and the output of the simultaneous operation detecting unit 50 is not ON, the forward command is output to the inverter 44. As a result, the motor 24 is driven to the forward side by the inverter 44 and the moving rack 1
Moves forward. Then, when the approach detector 31 operates, the forward command to the inverter 44 is turned off, and the movable rack 1 is stopped. Further, when the approach detector 31 is operating when a forward command is input from the controller 43 of the rear movable rack 1, or when the output of the simultaneous operation detection unit 50 is on, the forward command is not output to the inverter 44, The mobile shelf 1 remains stopped. In addition, the controller 4 of the rear mobile shelf 1
The forward command to the inverter 44 is formed only while the forward command is input from 3, and when the forward command from the controller 43 of the rear moving rack 1 is turned off, the forward command to the inverter 44 is turned off and the moving rack is moved. 1 is stopped. When the approach detector 31 operates, the reverse drive stop command is output to the controller 43 of the movable rack 1 adjacent to the front side.

As described above, when the output of the simultaneous operation detecting section 50 is on, that is, when two or more operation buttons 41 are operated almost simultaneously (incorrect operation), both the reverse command and the forward command are issued. No output is made, and the mobile rack 1 remains stopped.

No. In the controller 43 of the mobile rack 1 of No. 1, when the operation signal of the S1 operation button 41 is input, the forward command and the in-operation signal are output to the controller 43 of all the front mobile racks 1 as described above,
When the front side approach detector 31 is not operating, a forward command is output to the inverter 44. In addition, No. In the controller 43 of the mobile shelf 1 of No. 1, the approach detector 31 on the rear side
Is operated, the reverse command is turned off, and the reverse of the movable rack 1 is stopped. The operation signal of the S1 operation button 41 is input to the simultaneous operation detection unit 50.

The operation of the structure of the shelf equipment will be described.
Now, as shown in FIG. 1 and No. It is formed between the two movable shelves 1, and the work in the work passage S2 is completed, and the chain 34 is stretched in the work passage S2 to prevent the worker from entering. At this time, as shown in FIG. 9A, the second hook 3
The chain 34 is stretched between the movable shelves 1 by hooking the socket 33 on the No. 7 chain, and the No. 7 chain is used. The approach detector 31 of the moving rack 1 of No. 1 is in the off (not operating) state, The reverse drive stop command output to the controller 43 of the mobile rack 1 of No. 2 is off (not output). Further, as shown in FIG. 9B, the other work passages S1, S3 and S4 are
The socket 33 is hooked on the second hook 37. In addition, No. 2 and No. 3 and the approach detector 31 and the No. The proximity detector 31 behind 1 is on.

The work passage S3 is opened to carry out the work. The worker first confirms that there is no one in the work passage S2, and then the No. The S3 operation button 41 of the second moving rack 1 is operated. Then No. The controller 43 of the moving rack 1 of No. 2 responds to the S3 operation button 41 and moves the rear No. The backward command is output to the controller 43 of the movable rack 1 of No. 1 and the forward No. Controller 4 of mobile shelf 1 of 3
The forward command is output to the inverter 3 and the reverse command is output to the inverter 44. This results in No. The second moving rack 1 starts to move backward. It should be noted that a reverse command is output to the inverter 44 while the S3 operation button 41 is being operated, and when the operation of the S3 operation button 41 is stopped, the reverse command is turned off and N
o. The mobile shelf 1 of 2 stops.

No. Since the approach detector 31 behind the movable rack 1 of No. 1 is turned on, No. Mobile shelf 1
Remained stationary without moving backward, and No.
No. 3 because the approach detector 31 of the movable rack 1 of No. 3 is turned on. The movable rack 1 of No. 3 does not move forward and remains stopped.

No. The moving rack 1 of No. 2 moves backward, 1
When the proximity detector 31 in front of the moving shelf 1 of
o. No. 1 from the controller 43 of the mobile rack 1 of No. 1 A backward stop command is output to the controller 43 of the movable rack 1 of No. 2,
This results in No. The controller 43 of the second mobile rack 1
The reverse command is turned off, and thus the No. 2 mobile shelves 1 is N
o. The movable rack 1 of No. 1 is approached and stopped, and the work passage S3 is opened. At this time, the work passage S3 is shown in FIG.
As shown in, the chain 34 is in a stretched state.

When the working passage S3 is formed, the worker removes the socket 33 from the second hook 37,
As shown in FIG. It is hung on the first hook 32 of the second moving rack 1. This allows socket 3
3 is No. The approach detector 31 operates closer to the approach detector 31 of the movable rack 1 of No. 2 and therefore, as can be seen from the block of FIG. 7, the output in the direction of closing the work passage S3, that is, No. Output of a forward command from the controller 43 of the movable rack 1 of No. 2 and forward No. The output of the backward command from the controller 43 of the movable rack 1 of No. 3 is blocked.
Therefore, the socket 33 is set to No. 1 of 2 mobile shelves 1
In the state of being hooked on the hook 32, the movement of the movable shelf 1 in the direction of closing the work passage S3 is prevented even if the operation button 41 is operated, and the safety when the worker enters the work passage S3 is ensured. Secured.

The worker enters the work passage S3 to carry out the work of handling the articles, and when the work is completed, the work passage S3 is carried out.
Exit from the socket 33 and set the socket 33 to No. 1 of 2 mobile shelves 1
Remove from the hook 32, No. 3 is hooked on the second hook 37 of the movable rack 1 and the chain 34 is stretched over the work passage S3 to prohibit entry into the work passage S3. At this time, the No. The approach detector 31 of the moving rack 1 of No. 2 is turned off, and the No. No. 2 moving rack 1 forward, No. It is possible to reverse the movable rack 1 of 3.

When the operation of the operation button 41 by the operator is stopped and the operation command is turned off, all forward and backward commands are turned off, the forward and backward commands to the inverter 44 are turned off, and the moving rack is moved. 1 is stopped. Therefore, by stopping the operation of the operation button 41 during the movement of the movable rack 1 to stop the movement of the movable rack 1, it is possible to form two or three passages into which a worker can arbitrarily enter. Also, in this way, the working passage S
Even if the movable rack 1 is stopped in the middle of the formation of the passages and, for example, two passages or three passages are formed, it is moved according to the operation passage S to be opened according to the operation of the operation button 41. By determining the moving direction of the movable rack 1 and controlling the inverter 44 according to the determined moving direction,
A desired work passage S can be formed.

As described above, when the worker enters the working passage S formed between the movable shelves 1, the socket 33 is hooked on the first hook 32 so that the approach detector 31 facing the working passage S faces the working passage S. The work passage S can be operated by moving them close to each other.
It is possible to prevent the moving shelves 1 forming the above from moving closer to each other, and thus it is possible to avoid the possibility that the work passage S is closed and the safety of the worker is threatened. Thus, the proximity detector 3
1 is a means for preventing the movement of the movable shelves 1 from each other when they come close to each other, and also serves as a means for avoiding a possibility that the safety of workers is threatened, thus eliminating the need for a dedicated safety device as in the conventional case. Therefore, it is possible to suppress an increase in cost as compared with the conventional case where a dedicated safety device is installed.

Further, by hooking the socket 33 on the first hook 32 provided on the surface of the movable shelf 1 facing the work passage S, the chain 34 is detached from the work passage S and opened, whereby the work is performed. It is possible to notify that the user may enter the service passage S.

Further, the socket 33 is attached to the chain 34, and the other end of the chain 34 has the other end of the approach detector 31 of the movable shelf 1.
Since it is fixed in the vicinity of, it is possible to avoid the risk of the socket 33 being lost.

When the proximity detector 31 is not operated by the socket 33, this socket 33 is used as the proximity detector 3
The second hook 3 of the movable rack 1 facing the movable rack 1 provided with
By locking to 7 the chain 34 can be stretched between the moving shelf 1 provided with the approach detector 31 and the moving shelf 1 facing the moving shelf 1, and the intrusion of the worker can be prevented. .

When a plurality of operation buttons 41 are operated substantially at the same time, the movement of all the movable shelves 1 is stopped, so that a plurality of workers try to form the work passage S at substantially the same time, and thus the movable shelves are moved. It can be avoided that the movement of 1 is a movement unexpected for the worker.

In addition, the traveling portion (lower frame portion) 15 is located at a plurality of positions in the left-right direction B in which the lower frame body 18 in the direction along the traveling route i is orthogonal to the direction of the traveling route i. The lowermost shelf 12 is provided between the lower frames 18, and the traveling wheels 20 and the drive-type traveling wheels 20A are provided on each of the lower frames 18, so that the lowermost shelf 12 is provided.
This makes it possible to receive the force (inertial force of the article) acting on the traveling section (lower frame section) 15 and the load applied by the article, and the lower frame section 15 can be constructed at a low cost by reducing the number of parts and can be assembled. This can be done easily, and the level of the lowermost shelf 12 can be lowered, so that articles can be easily taken in and out of the lowermost shelf 12.

In the above embodiment, the hooks 32 and 37 are used as the first locking means and the second locking means, but any hook can be used as long as it can lock the socket (object to be detected) 33. It is also possible to use a receiver or a magnet that supports the socket 33 from below.

Further, in the above embodiment, the chain 34 is used as the cord-shaped body. However, the chain is not limited to the chain 34, and a telescopic wire or a simple cord may be used. Further, in the above-mentioned embodiment, the socket 33 attached to the chain 34 is provided as the detected object.
Instead of the above, as shown in FIGS. 10 and 11, a state in which the side face of the outer plate body 16 is axially supported above the proximity detector 31 and is horizontal toward the work passage S and vertically downward. Is provided with a bar 51 that can maintain the attitude, and when the bar 51 is in a downward vertical attitude, the proximity detector 31
Can be configured to operate. At this time,
The outer plate body 1 of the movable shelf 1 and the fixed shelf 5 facing the bar 51.
6 is provided with a recess 52 into which the horizontal bar 51 can be inserted. Further, the first hook 32 and the second hook 37 are unnecessary. In FIGS. 10 and 11, 53 is the outer plate body 1.
6 are bearings of the bar 51 arranged on both sides in the left-right direction B of FIG.

According to this structure, the worker is required to work on the work passage S.
When intruding, the bar 51 is tilted (it is vertically downward). Then, the approach detector 31 operates, whereby the approach operation of the movable shelf 1 in the direction of closing the work passage S can be prevented, and the safety of the worker can be achieved.
Further, when the worker exits from the work passage S, the bar 51 is returned to the original position (in a horizontal state). Then approach detector 31
Is turned off (in a non-operating state), and the moving shelf 1 can be moved closer to the work passage S in the closing direction.

In the above embodiment, the approach detector 31 is used.
Although the photoelectric switch is used as the above, the photoelectric switch is not limited to the photoelectric switch, and any device that can detect the approach of the movable shelf 1 or the fixed shelf 5 may be used. For example, it may be a magnetic sensor or the like. When the magnetic sensor is used, a magnet or the like that generates a magnetic force is attached to the surface of the movable shelf 1 or the fixed shelf 5 that faces the magnetic sensor, and a socket 33 or a bar 51 that similarly generates a magnetic force is also installed. .

In the above embodiment, the guide roller 1 is used.
A guide-railless movable shelf 1 having a guide mechanism composed of 9 and guide rails 3 is shown, but this does not have the guide rails 3 and the posture is corrected by itself when the movable shelf 1 travels. It may be a completely railless system composed of a movable rack having a function. In this case, for example, an object to be detected such as a seat rail is laid on the floor surface 2 side, and the object to be detected is detected by a detection means such as a proximity sensor provided on the side of the movable shelf 1 to detect the width deviation. A format for controlling such as is adopted. Alternatively, the traveling wheels 20 may be rail-type movable shelves that are guided by rails with collars.

In the above embodiment, the article storage unit 13
For example, assuming that it will be installed in an office, goods are directly placed and stored, but this is assumed to be installed in a warehouse where goods are handled by cargo-handling vehicles such as forklifts. Then, the form of placing and storing articles via a pallet, placing a box container,
It may be stored in a format.

In the above embodiment, the article storage unit 13
Is formed vertically and horizontally by the columns 11 and the shelf plate 12, but the article storage unit 13 may be of a type other than this type. For example, it may be of a type including only one stage of the article storage section 13 or a type of which the upper side is opened.

In the above embodiment, the operation button 41 is provided as the operation means. However, instead of the operation button 41 or together with the operation button 41, a reception device for a remote transmission device (remote control, radio control, etc.) is provided. By receiving the transmission signal from the remote transmission device with this reception device, it is determined that the same operation signal as the operation button 41 has been input, and the reception device receives the transmission signal from the remote transmission device. The movable rack 1 can be moved during this period. Further, infrared rays, ultrasonic waves, or radio waves can be used as a medium for carrying a signal from the remote transmission device.

Further, in the above embodiment, the type of the traveling wheels 20 is shown as the traveling support device, but this may be a caterpillar type (roller chain type) or the like.

[0061]

As described above, according to the present invention, when the worker enters the work passage formed between the movable shelves, the worker detects the work passage by operating the approach detection means. It is possible to prevent the moving shelves that are being formed from moving toward each other, thus avoiding the possibility that the work passage is closed and the safety of the worker is jeopardized. In addition, the approach detecting means is a means for preventing the movement of the movable shelves from each other when they come close to each other, and a means for avoiding the possibility of threatening the safety of the worker. The cost increase can be suppressed as compared with the case where a safety device is installed.

[Brief description of drawings]

FIG. 1 is a perspective view of a shelf facility according to an embodiment of the present invention.

FIG. 2 is a plan view of the shelf equipment.

FIG. 3 is a partially cutaway perspective view of a lower frame portion in the same shelf facility.

FIG. 4 is a partially cutaway plan view of the same shelf facility.

FIG. 5 is a perspective view of a main part of the same shelf facility.

FIG. 6 is a circuit configuration diagram of the shelf equipment.

FIG. 7 is a control block diagram of a controller of each moving shelf of the same shelf facility.

FIG. 8 is a schematic side view of the same shelf facility.

FIG. 9 is an explanatory diagram of the same shelf equipment when a work passage is opened.

FIG. 10 is a schematic side view of shelf equipment according to another embodiment of the present invention.

FIG. 11 is a perspective view of a main part of the shelf equipment.

[Explanation of symbols]

1 mobile shelf 2 floor 3 guide rails 5 fixed shelves 13 Article storage 15 Running section 18 Lower frame 20 running wheels 24 motor 31 Proximity detector 32, 37 hooks 33 socket 34 chains 41 Operation Button 42 Operation panel 43 controller 44 inverter 51 bar A front-back direction B left-right direction i travel route

Claims (6)

[Claims] 1. A plurality of movable shelves which can travel back and forth on a traveling path via a traveling support device are arranged, and a working passage opened between the moving shelves is used to move to face the working passage. Shelf equipment for handling articles to shelves, wherein each of the moving shelves detects an approach of a moving shelf facing the moving shelf, and the approaching movement of the moving shelf and the facing moving shelf to each other is detected. Proximity detection means for blocking is provided, detection objects for operating the proximity detection means are provided on the movable shelves, and the approach detection of the movable shelves forming the work passage when entering the work passage is performed. Shelving equipment, characterized in that the means is operated by the object to be detected to prevent the moving shelf provided with the approach detecting means and the moving shelf facing each other from approaching each other. 2. A first locking means is provided for locking the detection target by approaching the proximity detection means, wherein the detection target is moved closer to the proximity detection means by the first locking means. The shelving equipment according to claim 1, wherein the moving equipment provided with the approach detecting means and the facing moving shelf are prevented from approaching each other by stopping and operating the approach detecting means. 3. The shelf facility according to claim 2, wherein the first locking means is provided on a surface of the movable shelf that faces the work passage. 4. The object to be detected is provided at one end of a cord-like body, and the other end of the cord-like body is fixed near the approach detecting means of the movable shelf. Item 4. The shelf equipment according to any one of Items 3. 5. The rack equipment according to claim 4, wherein second locking means for locking the detected body provided at the tip of the cord-like body is provided on the opposing movable shelves. 6. An operation means for designating a work passage is provided for each of the work passages, and when a plurality of the operation means are operated substantially at the same time, movement of all movable shelves is stopped. The shelf equipment according to any one of claims 1 to 5.